...$ identifier\n // if not, return the url as is.\n startPos = url.indexOf('$' + token);\n if (startPos < 0) {\n return url;\n }\n\n // the next '$' must be the end of the identifier\n // if there isn't one, return the url as is.\n endPos = url.indexOf('$', startPos + tokenLen);\n if (endPos < 0) {\n return url;\n }\n\n // now see if there is an additional format tag suffixed to\n // the identifier within the enclosing '$' characters\n formatTagPos = url.indexOf(formatTag, startPos + tokenLen);\n if (formatTagPos > startPos && formatTagPos < endPos) {\n\n specifier = url.charAt(endPos - 1);\n width = parseInt(url.substring(formatTagPos + formatTagLen, endPos - 1), 10);\n\n // support the minimum specifiers required by IEEE 1003.1\n // (d, i , o, u, x, and X) for completeness\n switch (specifier) {\n // treat all int types as uint,\n // hence deliberate fallthrough\n case 'd':\n case 'i':\n case 'u':\n paddedValue = zeroPadToLength(value.toString(), width);\n break;\n case 'x':\n paddedValue = zeroPadToLength(value.toString(16), width);\n break;\n case 'X':\n paddedValue = zeroPadToLength(value.toString(16), width).toUpperCase();\n break;\n case 'o':\n paddedValue = zeroPadToLength(value.toString(8), width);\n break;\n default:\n return url;\n }\n } else {\n paddedValue = value;\n }\n\n url = url.substring(0, startPos) + paddedValue + url.substring(endPos + 1);\n }\n}\n\nfunction getSegment(representation, duration, presentationStartTime, mediaStartTime, availabilityStartTime,\n timelineConverter, presentationEndTime, isDynamic, index) {\n let seg = new Segment();\n\n seg.representation = representation;\n seg.duration = duration;\n seg.presentationStartTime = presentationStartTime;\n seg.mediaStartTime = mediaStartTime;\n seg.availabilityStartTime = availabilityStartTime;\n seg.availabilityEndTime = timelineConverter.calcAvailabilityEndTimeFromPresentationTime(presentationEndTime, representation.adaptation.period.mpd, isDynamic);\n seg.wallStartTime = timelineConverter.calcWallTimeForSegment(seg, isDynamic);\n seg.replacementNumber = getNumberForSegment(seg, index);\n seg.availabilityIdx = index;\n\n return seg;\n}\n\nfunction isSegmentAvailable(timelineConverter, representation, segment, isDynamic) {\n const periodEnd = timelineConverter.getPeriodEnd(representation, isDynamic);\n const periodRelativeEnd = timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation, periodEnd);\n\n const segmentTime = timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation, segment.presentationStartTime);\n if (segmentTime >= periodRelativeEnd) {\n if (isDynamic) {\n // segment is not available in current period, but it may be segment available in another period that current one (in DVR window)\n // if not (time > segmentAvailabilityRange.end), then return false\n if (representation.segmentAvailabilityRange && segment.presentationStartTime >= representation.segmentAvailabilityRange.end) {\n return false;\n }\n } else {\n return false;\n }\n }\n\n return true;\n}\n\nexport function getIndexBasedSegment(timelineConverter, isDynamic, representation, index) {\n let duration,\n presentationStartTime,\n presentationEndTime;\n\n duration = representation.segmentDuration;\n\n /*\n * From spec - If neither @duration attribute nor SegmentTimeline element is present, then the Representation\n * shall contain exactly one Media Segment. The MPD start time is 0 and the MPD duration is obtained\n * in the same way as for the last Media Segment in the Representation.\n */\n if (isNaN(duration)) {\n duration = representation.adaptation.period.duration;\n }\n\n presentationStartTime = parseFloat((representation.adaptation.period.start + (index * duration)).toFixed(5));\n presentationEndTime = parseFloat((presentationStartTime + duration).toFixed(5));\n\n const segment = getSegment(representation, duration, presentationStartTime,\n timelineConverter.calcMediaTimeFromPresentationTime(presentationStartTime, representation),\n timelineConverter.calcAvailabilityStartTimeFromPresentationTime(presentationStartTime, representation.adaptation.period.mpd, isDynamic),\n timelineConverter, presentationEndTime, isDynamic, index);\n\n if (!isSegmentAvailable(timelineConverter, representation, segment, isDynamic)) {\n return null;\n }\n\n return segment;\n}\n\nexport function getTimeBasedSegment(timelineConverter, isDynamic, representation, time, duration, fTimescale, url, range, index, tManifest) {\n const scaledTime = time / fTimescale;\n const scaledDuration = Math.min(duration / fTimescale, representation.adaptation.period.mpd.maxSegmentDuration);\n\n let presentationStartTime,\n presentationEndTime,\n seg;\n\n presentationStartTime = timelineConverter.calcPresentationTimeFromMediaTime(scaledTime, representation);\n presentationEndTime = presentationStartTime + scaledDuration;\n\n seg = getSegment(representation, scaledDuration, presentationStartTime,\n scaledTime,\n representation.adaptation.period.mpd.manifest.loadedTime,\n timelineConverter, presentationEndTime, isDynamic, index);\n\n if (!isSegmentAvailable(timelineConverter, representation, seg, isDynamic)) {\n return null;\n }\n\n seg.replacementTime = tManifest ? tManifest : time;\n\n url = replaceTokenForTemplate(url, 'Number', seg.replacementNumber);\n url = replaceTokenForTemplate(url, 'Time', seg.replacementTime);\n seg.media = url;\n seg.mediaRange = range;\n\n return seg;\n}\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Constants from '../../streaming/constants/Constants';\n\nimport { replaceTokenForTemplate, getIndexBasedSegment } from './SegmentsUtils';\n\nfunction TemplateSegmentsGetter(config, isDynamic) {\n config = config || {};\n const timelineConverter = config.timelineConverter;\n\n let instance;\n\n function checkConfig() {\n if (!timelineConverter || !timelineConverter.hasOwnProperty('calcPeriodRelativeTimeFromMpdRelativeTime')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function getSegmentByIndex(representation, index) {\n checkConfig();\n\n if (!representation) {\n return null;\n }\n\n const template = representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].\n AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].SegmentTemplate;\n\n index = Math.max(index, 0);\n\n const seg = getIndexBasedSegment(timelineConverter, isDynamic, representation, index);\n if (seg) {\n seg.replacementTime = Math.round((index - 1) * representation.segmentDuration * representation.timescale,10);\n\n let url = template.media;\n url = replaceTokenForTemplate(url, 'Number', seg.replacementNumber);\n url = replaceTokenForTemplate(url, 'Time', seg.replacementTime);\n seg.media = url;\n }\n\n const duration = representation.segmentDuration;\n const availabilityWindow = representation.segmentAvailabilityRange;\n if (isNaN(duration)) {\n representation.availableSegmentsNumber = 1;\n }\n else {\n representation.availableSegmentsNumber = Math.ceil((availabilityWindow.end - availabilityWindow.start) / duration);\n }\n\n return seg;\n }\n\n function getSegmentByTime(representation, requestedTime) {\n checkConfig();\n\n if (!representation) {\n return null;\n }\n\n const duration = representation.segmentDuration;\n\n if (isNaN(duration)) {\n return null;\n }\n\n const periodTime = timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation, requestedTime);\n const index = Math.floor(periodTime / duration);\n\n return getSegmentByIndex(representation, index);\n }\n\n instance = {\n getSegmentByIndex: getSegmentByIndex,\n getSegmentByTime: getSegmentByTime\n };\n\n return instance;\n}\n\nTemplateSegmentsGetter.__dashjs_factory_name = 'TemplateSegmentsGetter';\nconst factory = FactoryMaker.getClassFactory(TemplateSegmentsGetter);\nexport default factory;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport DashConstants from '../constants/DashConstants';\nimport DashManifestModel from '../models/DashManifestModel';\nimport Settings from '../../core/Settings';\n\nfunction TimelineConverter() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const settings = Settings(context).getInstance();\n\n let instance,\n dashManifestModel,\n clientServerTimeShift,\n isClientServerTimeSyncCompleted,\n expectedLiveEdge;\n\n function setup() {\n dashManifestModel = DashManifestModel(context).getInstance();\n reset();\n }\n\n function initialize() {\n resetInitialSettings();\n eventBus.on(Events.TIME_SYNCHRONIZATION_COMPLETED, onTimeSyncComplete, this);\n }\n\n function isTimeSyncCompleted() {\n return isClientServerTimeSyncCompleted;\n }\n\n function setTimeSyncCompleted(value) {\n isClientServerTimeSyncCompleted = value;\n }\n\n function getClientTimeOffset() {\n return clientServerTimeShift;\n }\n\n function setClientTimeOffset(value) {\n clientServerTimeShift = value;\n }\n\n function getExpectedLiveEdge() {\n return expectedLiveEdge;\n }\n\n function setExpectedLiveEdge(value) {\n expectedLiveEdge = value;\n }\n\n function calcAvailabilityTimeFromPresentationTime(presentationTime, mpd, isDynamic, calculateEnd) {\n let availabilityTime = NaN;\n\n if (calculateEnd) {\n //@timeShiftBufferDepth specifies the duration of the time shifting buffer that is guaranteed\n // to be available for a Media Presentation with type 'dynamic'.\n // When not present, the value is infinite.\n if (isDynamic && (mpd.timeShiftBufferDepth != Number.POSITIVE_INFINITY)) {\n availabilityTime = new Date(mpd.availabilityStartTime.getTime() + ((presentationTime + mpd.timeShiftBufferDepth) * 1000));\n } else {\n availabilityTime = mpd.availabilityEndTime;\n }\n } else {\n if (isDynamic) {\n availabilityTime = new Date(mpd.availabilityStartTime.getTime() + (presentationTime - clientServerTimeShift) * 1000);\n } else {\n // in static mpd, all segments are available at the same time\n availabilityTime = mpd.availabilityStartTime;\n }\n }\n\n return availabilityTime;\n }\n\n function calcAvailabilityStartTimeFromPresentationTime(presentationTime, mpd, isDynamic) {\n return calcAvailabilityTimeFromPresentationTime.call(this, presentationTime, mpd, isDynamic);\n }\n\n function calcAvailabilityEndTimeFromPresentationTime(presentationTime, mpd, isDynamic) {\n return calcAvailabilityTimeFromPresentationTime.call(this, presentationTime, mpd, isDynamic, true);\n }\n\n function calcPresentationTimeFromWallTime(wallTime, period) {\n return ((wallTime.getTime() - period.mpd.availabilityStartTime.getTime() + clientServerTimeShift * 1000) / 1000);\n }\n\n function calcPresentationTimeFromMediaTime(mediaTime, representation) {\n const periodStart = representation.adaptation.period.start;\n const presentationOffset = representation.presentationTimeOffset;\n\n return mediaTime + (periodStart - presentationOffset);\n }\n\n function calcMediaTimeFromPresentationTime(presentationTime, representation) {\n const periodStart = representation.adaptation.period.start;\n const presentationOffset = representation.presentationTimeOffset;\n\n return presentationTime - periodStart + presentationOffset;\n }\n\n function calcWallTimeForSegment(segment, isDynamic) {\n let suggestedPresentationDelay,\n displayStartTime,\n wallTime;\n\n if (isDynamic) {\n suggestedPresentationDelay = segment.representation.adaptation.period.mpd.suggestedPresentationDelay;\n displayStartTime = segment.presentationStartTime + suggestedPresentationDelay;\n wallTime = new Date(segment.availabilityStartTime.getTime() + (displayStartTime * 1000));\n }\n\n return wallTime;\n }\n\n function calcSegmentAvailabilityRange(voRepresentation, isDynamic) {\n // Static Range Finder\n const voPeriod = voRepresentation.adaptation.period;\n const range = {start: voPeriod.start, end: voPeriod.start + voPeriod.duration};\n if (!isDynamic) return range;\n\n if (!isClientServerTimeSyncCompleted && voRepresentation.segmentAvailabilityRange) {\n return voRepresentation.segmentAvailabilityRange;\n }\n\n // Dynamic Range Finder\n const d = voRepresentation.segmentDuration || (voRepresentation.segments && voRepresentation.segments.length ? voRepresentation.segments[voRepresentation.segments.length - 1].duration : 0);\n\n // Specific use case of SegmentTimeline without timeShiftBufferDepth\n if (voRepresentation.segmentInfoType === DashConstants.SEGMENT_TIMELINE && settings.get().streaming.calcSegmentAvailabilityRangeFromTimeline) {\n return calcSegmentAvailabilityRangeFromTimeline(voRepresentation);\n }\n\n const now = calcPresentationTimeFromWallTime(new Date(), voPeriod);\n const periodEnd = voPeriod.start + voPeriod.duration;\n range.start = Math.max((now - voPeriod.mpd.timeShiftBufferDepth), voPeriod.start);\n\n const endOffset = voRepresentation.availabilityTimeOffset !== undefined &&\n voRepresentation.availabilityTimeOffset < d ? d - voRepresentation.availabilityTimeOffset : d;\n\n range.end = now >= periodEnd && now - endOffset < periodEnd ? periodEnd : now - endOffset;\n\n return range;\n }\n\n function calcSegmentAvailabilityRangeFromTimeline(voRepresentation) {\n const adaptation = voRepresentation.adaptation.period.mpd.manifest.Period_asArray[voRepresentation.adaptation.period.index].AdaptationSet_asArray[voRepresentation.adaptation.index];\n const representation = dashManifestModel.getRepresentationFor(voRepresentation.index, adaptation);\n const timeline = representation.SegmentTemplate.SegmentTimeline;\n const timescale = representation.SegmentTemplate.timescale;\n const segments = timeline.S_asArray;\n const range = {start: 0, end: 0};\n let d = 0;\n let segment,\n repeat,\n i,\n len;\n\n range.start = calcPresentationTimeFromMediaTime(segments[0].t / timescale, voRepresentation);\n\n for (i = 0, len = segments.length; i < len; i++) {\n segment = segments[i];\n repeat = 0;\n if (segment.hasOwnProperty('r')) {\n repeat = segment.r;\n }\n d += (segment.d / timescale) * (1 + repeat);\n }\n\n range.end = range.start + d;\n\n return range;\n }\n\n function getPeriodEnd(voRepresentation, isDynamic) {\n // Static Range Finder\n const voPeriod = voRepresentation.adaptation.period;\n if (!isDynamic) {\n return voPeriod.start + voPeriod.duration;\n }\n\n if (!isClientServerTimeSyncCompleted && voRepresentation.segmentAvailabilityRange) {\n return voRepresentation.segmentAvailabilityRange;\n }\n\n // Dynamic Range Finder\n const d = voRepresentation.segmentDuration || (voRepresentation.segments && voRepresentation.segments.length ? voRepresentation.segments[voRepresentation.segments.length - 1].duration : 0);\n const now = calcPresentationTimeFromWallTime(new Date(), voPeriod);\n const periodEnd = voPeriod.start + voPeriod.duration;\n\n const endOffset = voRepresentation.availabilityTimeOffset !== undefined &&\n voRepresentation.availabilityTimeOffset < d ? d - voRepresentation.availabilityTimeOffset : d;\n\n return Math.min(now - endOffset, periodEnd);\n }\n\n function calcPeriodRelativeTimeFromMpdRelativeTime(representation, mpdRelativeTime) {\n const periodStartTime = representation.adaptation.period.start;\n return mpdRelativeTime - periodStartTime;\n }\n\n /*\n * We need to figure out if we want to timesync for segmentTimeine where useCalculatedLiveEdge = true\n * seems we figure out client offset based on logic in liveEdgeFinder getLiveEdge timelineConverter.setClientTimeOffset(liveEdge - representationInfo.DVRWindow.end);\n * FYI StreamController's onManifestUpdated entry point to timeSync\n * */\n function onTimeSyncComplete(e) {\n\n if (isClientServerTimeSyncCompleted) return;\n\n if (e.offset !== undefined) {\n setClientTimeOffset(e.offset / 1000);\n isClientServerTimeSyncCompleted = true;\n }\n }\n\n function resetInitialSettings() {\n clientServerTimeShift = 0;\n isClientServerTimeSyncCompleted = false;\n expectedLiveEdge = NaN;\n }\n\n function reset() {\n eventBus.off(Events.TIME_SYNCHRONIZATION_COMPLETED, onTimeSyncComplete, this);\n resetInitialSettings();\n }\n\n instance = {\n initialize: initialize,\n isTimeSyncCompleted: isTimeSyncCompleted,\n setTimeSyncCompleted: setTimeSyncCompleted,\n getClientTimeOffset: getClientTimeOffset,\n setClientTimeOffset: setClientTimeOffset,\n getExpectedLiveEdge: getExpectedLiveEdge,\n setExpectedLiveEdge: setExpectedLiveEdge,\n calcAvailabilityStartTimeFromPresentationTime: calcAvailabilityStartTimeFromPresentationTime,\n calcAvailabilityEndTimeFromPresentationTime: calcAvailabilityEndTimeFromPresentationTime,\n calcPresentationTimeFromWallTime: calcPresentationTimeFromWallTime,\n calcPresentationTimeFromMediaTime: calcPresentationTimeFromMediaTime,\n calcPeriodRelativeTimeFromMpdRelativeTime: calcPeriodRelativeTimeFromMpdRelativeTime,\n calcMediaTimeFromPresentationTime: calcMediaTimeFromPresentationTime,\n calcSegmentAvailabilityRange: calcSegmentAvailabilityRange,\n getPeriodEnd: getPeriodEnd,\n calcWallTimeForSegment: calcWallTimeForSegment,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nTimelineConverter.__dashjs_factory_name = 'TimelineConverter';\nexport default FactoryMaker.getSingletonFactory(TimelineConverter);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport DashConstants from '../constants/DashConstants';\nimport DashManifestModel from '../models/DashManifestModel';\nimport Settings from '../../core/Settings';\n\nfunction TimelineConverter() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const settings = Settings(context).getInstance();\n\n let instance,\n dashManifestModel,\n clientServerTimeShift,\n isClientServerTimeSyncCompleted,\n expectedLiveEdge;\n\n function setup() {\n dashManifestModel = DashManifestModel(context).getInstance();\n reset();\n }\n\n function initialize() {\n resetInitialSettings();\n eventBus.on(Events.UPDATE_TIME_SYNC_OFFSET, _onUpdateTimeSyncOffset, this);\n }\n\n function getClientTimeOffset() {\n return clientServerTimeShift;\n }\n\n function setClientTimeOffset(value) {\n clientServerTimeShift = value;\n }\n\n function getExpectedLiveEdge() {\n return expectedLiveEdge;\n }\n\n function setExpectedLiveEdge(value) {\n expectedLiveEdge = value;\n }\n\n function calcAvailabilityTimeFromPresentationTime(presentationTime, mpd, isDynamic, calculateEnd) {\n let availabilityTime = NaN;\n\n if (calculateEnd) {\n //@timeShiftBufferDepth specifies the duration of the time shifting buffer that is guaranteed\n // to be available for a Media Presentation with type 'dynamic'.\n // When not present, the value is infinite.\n if (isDynamic && (mpd.timeShiftBufferDepth != Number.POSITIVE_INFINITY)) {\n availabilityTime = new Date(mpd.availabilityStartTime.getTime() + ((presentationTime + mpd.timeShiftBufferDepth) * 1000));\n } else {\n availabilityTime = mpd.availabilityEndTime;\n }\n } else {\n if (isDynamic) {\n availabilityTime = new Date(mpd.availabilityStartTime.getTime() + (presentationTime - clientServerTimeShift) * 1000);\n } else {\n // in static mpd, all segments are available at the same time\n availabilityTime = mpd.availabilityStartTime;\n }\n }\n\n return availabilityTime;\n }\n\n function calcAvailabilityStartTimeFromPresentationTime(presentationTime, mpd, isDynamic) {\n return calcAvailabilityTimeFromPresentationTime.call(this, presentationTime, mpd, isDynamic);\n }\n\n function calcAvailabilityEndTimeFromPresentationTime(presentationTime, mpd, isDynamic) {\n return calcAvailabilityTimeFromPresentationTime.call(this, presentationTime, mpd, isDynamic, true);\n }\n\n function calcPresentationTimeFromWallTime(wallTime, period) {\n return ((wallTime.getTime() - period.mpd.availabilityStartTime.getTime() + clientServerTimeShift * 1000) / 1000);\n }\n\n function calcPresentationTimeFromMediaTime(mediaTime, representation) {\n const periodStart = representation.adaptation.period.start;\n const presentationOffset = representation.presentationTimeOffset;\n\n return mediaTime + (periodStart - presentationOffset);\n }\n\n function calcMediaTimeFromPresentationTime(presentationTime, representation) {\n const periodStart = representation.adaptation.period.start;\n const presentationOffset = representation.presentationTimeOffset;\n\n return presentationTime - periodStart + presentationOffset;\n }\n\n function calcWallTimeForSegment(segment, isDynamic) {\n let suggestedPresentationDelay,\n displayStartTime,\n wallTime;\n\n if (isDynamic) {\n suggestedPresentationDelay = segment.representation.adaptation.period.mpd.suggestedPresentationDelay;\n displayStartTime = segment.presentationStartTime + suggestedPresentationDelay;\n wallTime = new Date(segment.availabilityStartTime.getTime() + (displayStartTime * 1000));\n }\n\n return wallTime;\n }\n\n function calcSegmentAvailabilityRange(voRepresentation, isDynamic) {\n // Static Range Finder\n const voPeriod = voRepresentation.adaptation.period;\n const range = {start: voPeriod.start, end: voPeriod.start + voPeriod.duration};\n if (!isDynamic) return range;\n\n if (!isClientServerTimeSyncCompleted && voRepresentation.segmentAvailabilityRange) {\n return voRepresentation.segmentAvailabilityRange;\n }\n\n // Dynamic Range Finder\n const d = voRepresentation.segmentDuration || (voRepresentation.segments && voRepresentation.segments.length ? voRepresentation.segments[voRepresentation.segments.length - 1].duration : 0);\n\n // Specific use case of SegmentTimeline without timeShiftBufferDepth\n if (voRepresentation.segmentInfoType === DashConstants.SEGMENT_TIMELINE && settings.get().streaming.calcSegmentAvailabilityRangeFromTimeline) {\n return calcSegmentAvailabilityRangeFromTimeline(voRepresentation);\n }\n\n const now = calcPresentationTimeFromWallTime(new Date(), voPeriod);\n const periodEnd = voPeriod.start + voPeriod.duration;\n range.start = Math.max((now - voPeriod.mpd.timeShiftBufferDepth), voPeriod.start);\n\n const endOffset = voRepresentation.availabilityTimeOffset !== undefined &&\n voRepresentation.availabilityTimeOffset < d ? d - voRepresentation.availabilityTimeOffset : d;\n\n range.end = now >= periodEnd && now - endOffset < periodEnd ? periodEnd : now - endOffset;\n\n return range;\n }\n\n function calcSegmentAvailabilityRangeFromTimeline(voRepresentation) {\n const adaptation = voRepresentation.adaptation.period.mpd.manifest.Period_asArray[voRepresentation.adaptation.period.index].AdaptationSet_asArray[voRepresentation.adaptation.index];\n const representation = dashManifestModel.getRepresentationFor(voRepresentation.index, adaptation);\n const timeline = representation.SegmentTemplate.SegmentTimeline;\n const timescale = representation.SegmentTemplate.timescale;\n const segments = timeline.S_asArray;\n const range = {start: 0, end: 0};\n let d = 0;\n let segment,\n repeat,\n i,\n len;\n\n range.start = calcPresentationTimeFromMediaTime(segments[0].t / timescale, voRepresentation);\n\n for (i = 0, len = segments.length; i < len; i++) {\n segment = segments[i];\n repeat = 0;\n if (segment.hasOwnProperty('r')) {\n repeat = segment.r;\n }\n d += (segment.d / timescale) * (1 + repeat);\n }\n\n range.end = range.start + d;\n\n return range;\n }\n\n function getPeriodEnd(voRepresentation, isDynamic) {\n // Static Range Finder\n const voPeriod = voRepresentation.adaptation.period;\n if (!isDynamic) {\n return voPeriod.start + voPeriod.duration;\n }\n\n if (!isClientServerTimeSyncCompleted && voRepresentation.segmentAvailabilityRange) {\n return voRepresentation.segmentAvailabilityRange;\n }\n\n // Dynamic Range Finder\n const d = voRepresentation.segmentDuration || (voRepresentation.segments && voRepresentation.segments.length ? voRepresentation.segments[voRepresentation.segments.length - 1].duration : 0);\n const now = calcPresentationTimeFromWallTime(new Date(), voPeriod);\n const periodEnd = voPeriod.start + voPeriod.duration;\n\n const endOffset = voRepresentation.availabilityTimeOffset !== undefined &&\n voRepresentation.availabilityTimeOffset < d ? d - voRepresentation.availabilityTimeOffset : d;\n\n return Math.min(now - endOffset, periodEnd);\n }\n\n function calcPeriodRelativeTimeFromMpdRelativeTime(representation, mpdRelativeTime) {\n const periodStartTime = representation.adaptation.period.start;\n return mpdRelativeTime - periodStartTime;\n }\n\n /*\n * We need to figure out if we want to timesync for segmentTimeine where useCalculatedLiveEdge = true\n * seems we figure out client offset based on logic in liveEdgeFinder getLiveEdge timelineConverter.setClientTimeOffset(liveEdge - representationInfo.DVRWindow.end);\n * FYI StreamController's onManifestUpdated entry point to timeSync\n * */\n function _onUpdateTimeSyncOffset(e) {\n if (e.offset !== undefined) {\n setClientTimeOffset(e.offset / 1000);\n isClientServerTimeSyncCompleted = true;\n }\n }\n\n function resetInitialSettings() {\n clientServerTimeShift = 0;\n isClientServerTimeSyncCompleted = false;\n expectedLiveEdge = NaN;\n }\n\n function reset() {\n eventBus.off(Events.UPDATE_TIME_SYNC_OFFSET, _onUpdateTimeSyncOffset, this);\n resetInitialSettings();\n }\n\n instance = {\n initialize: initialize,\n getClientTimeOffset: getClientTimeOffset,\n setClientTimeOffset: setClientTimeOffset,\n getExpectedLiveEdge: getExpectedLiveEdge,\n setExpectedLiveEdge: setExpectedLiveEdge,\n calcAvailabilityStartTimeFromPresentationTime: calcAvailabilityStartTimeFromPresentationTime,\n calcAvailabilityEndTimeFromPresentationTime: calcAvailabilityEndTimeFromPresentationTime,\n calcPresentationTimeFromWallTime: calcPresentationTimeFromWallTime,\n calcPresentationTimeFromMediaTime: calcPresentationTimeFromMediaTime,\n calcPeriodRelativeTimeFromMpdRelativeTime: calcPeriodRelativeTimeFromMpdRelativeTime,\n calcMediaTimeFromPresentationTime: calcMediaTimeFromPresentationTime,\n calcSegmentAvailabilityRange: calcSegmentAvailabilityRange,\n getPeriodEnd: getPeriodEnd,\n calcWallTimeForSegment: calcWallTimeForSegment,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nTimelineConverter.__dashjs_factory_name = 'TimelineConverter';\nexport default FactoryMaker.getSingletonFactory(TimelineConverter);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Constants from '../../streaming/constants/Constants';\n\nimport { getTimeBasedSegment } from './SegmentsUtils';\n\nfunction TimelineSegmentsGetter(config, isDynamic) {\n\n config = config || {};\n const timelineConverter = config.timelineConverter;\n\n let instance;\n\n function checkConfig() {\n if (!timelineConverter || !timelineConverter.hasOwnProperty('calcMediaTimeFromPresentationTime') ||\n !timelineConverter.hasOwnProperty('calcSegmentAvailabilityRange')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function iterateSegments(representation, iterFunc) {\n const base = representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].\n AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].SegmentTemplate ||\n representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].\n AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].SegmentList;\n const timeline = base.SegmentTimeline;\n const list = base.SegmentURL_asArray;\n\n let time = 0;\n let scaledTime = 0;\n let availabilityIdx = -1;\n\n let fragments,\n frag,\n i,\n len,\n j,\n repeat,\n repeatEndTime,\n nextFrag,\n fTimescale;\n\n fTimescale = representation.timescale;\n fragments = timeline.S_asArray;\n\n let breakIterator = false;\n\n for (i = 0, len = fragments.length; i < len && !breakIterator; i++) {\n frag = fragments[i];\n repeat = 0;\n if (frag.hasOwnProperty('r')) {\n repeat = frag.r;\n }\n\n // For a repeated S element, t belongs only to the first segment\n if (frag.hasOwnProperty('t')) {\n time = frag.t;\n scaledTime = time / fTimescale;\n }\n\n // This is a special case: \"A negative value of the @r attribute of the S element indicates that the duration indicated in @d attribute repeats until the start of the next S element, the end of the Period or until the\n // next MPD update.\"\n if (repeat < 0) {\n nextFrag = fragments[i + 1];\n\n if (nextFrag && nextFrag.hasOwnProperty('t')) {\n repeatEndTime = nextFrag.t / fTimescale;\n } else {\n const availabilityEnd = representation.segmentAvailabilityRange ? representation.segmentAvailabilityRange.end : (timelineConverter.calcSegmentAvailabilityRange(representation, isDynamic).end);\n repeatEndTime = timelineConverter.calcMediaTimeFromPresentationTime(availabilityEnd, representation);\n representation.segmentDuration = frag.d / fTimescale;\n }\n\n repeat = Math.ceil((repeatEndTime - scaledTime) / (frag.d / fTimescale)) - 1;\n }\n\n for (j = 0; j <= repeat && !breakIterator; j++) {\n availabilityIdx++;\n\n breakIterator = iterFunc(time, scaledTime, base, list, frag, fTimescale, availabilityIdx, i);\n\n if (breakIterator) {\n representation.segmentDuration = frag.d / fTimescale;\n\n // check if there is at least one more segment\n if (j < repeat - 1 || i < len - 1) {\n availabilityIdx++;\n }\n }\n\n time += frag.d;\n scaledTime = time / fTimescale;\n }\n }\n\n representation.availableSegmentsNumber = availabilityIdx;\n }\n\n function getSegmentByIndex(representation, index, lastSegmentTime) {\n checkConfig();\n\n if (!representation) {\n return null;\n }\n\n let segment = null;\n let found = false;\n\n iterateSegments(representation, function (time, scaledTime, base, list, frag, fTimescale, availabilityIdx, i) {\n if (found || lastSegmentTime < 0) {\n let media = base.media;\n let mediaRange = frag.mediaRange;\n\n if (list) {\n media = list[i].media || '';\n mediaRange = list[i].mediaRange;\n }\n\n segment = getTimeBasedSegment(\n timelineConverter,\n isDynamic,\n representation,\n time,\n frag.d,\n fTimescale,\n media,\n mediaRange,\n availabilityIdx,\n frag.tManifest);\n\n return true;\n } else if (scaledTime >= lastSegmentTime - frag.d * 0.5 / fTimescale) { // same logic, if deviation is\n // 50% of segment duration, segment is found if scaledTime is greater than or equal to (startTime of previous segment - half of the previous segment duration)\n found = true;\n }\n\n return false;\n });\n\n return segment;\n }\n\n function getSegmentByTime(representation, requestedTime) {\n checkConfig();\n\n if (!representation) {\n return null;\n }\n\n if (requestedTime === undefined) {\n requestedTime = null;\n }\n\n let segment = null;\n const requiredMediaTime = timelineConverter.calcMediaTimeFromPresentationTime(requestedTime, representation);\n\n iterateSegments(representation, function (time, scaledTime, base, list, frag, fTimescale, availabilityIdx, i) {\n // In some cases when requiredMediaTime = actual end time of the last segment\n // it is possible that this time a bit exceeds the declared end time of the last segment.\n // in this case we still need to include the last segment in the segment list.\n if (requiredMediaTime < (scaledTime + (frag.d / fTimescale))) {\n let media = base.media;\n let mediaRange = frag.mediaRange;\n\n if (list) {\n media = list[i].media || '';\n mediaRange = list[i].mediaRange;\n }\n\n segment = getTimeBasedSegment(\n timelineConverter,\n isDynamic,\n representation,\n time,\n frag.d,\n fTimescale,\n media,\n mediaRange,\n availabilityIdx,\n frag.tManifest);\n\n return true;\n }\n\n return false;\n });\n\n return segment;\n }\n\n\n instance = {\n getSegmentByIndex: getSegmentByIndex,\n getSegmentByTime: getSegmentByTime\n };\n\n return instance;\n}\n\nTimelineSegmentsGetter.__dashjs_factory_name = 'TimelineSegmentsGetter';\nconst factory = FactoryMaker.getClassFactory(TimelineSegmentsGetter);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass AdaptationSet {\n constructor() {\n this.period = null;\n this.index = -1;\n this.type = null;\n }\n}\n\nexport default AdaptationSet;",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\n\nconst DEFAULT_DVB_PRIORITY = 1;\nconst DEFAULT_DVB_WEIGHT = 1;\n\nclass BaseURL {\n constructor(url, serviceLocation, priority, weight) {\n this.url = url || '';\n this.serviceLocation = serviceLocation || url || '';\n\n // DVB extensions\n this.dvb_priority = priority || DEFAULT_DVB_PRIORITY;\n this.dvb_weight = weight || DEFAULT_DVB_WEIGHT;\n\n this.availabilityTimeOffset = 0;\n this.availabilityTimeComplete = true;\n\n /* currently unused:\n * byteRange,\n */\n }\n}\n\nBaseURL.DEFAULT_DVB_PRIORITY = DEFAULT_DVB_PRIORITY;\nBaseURL.DEFAULT_DVB_WEIGHT = DEFAULT_DVB_WEIGHT;\n\nexport default BaseURL;\n",
@@ -351,41 +359,44 @@
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass EventStream {\n constructor() {\n this.adaptionSet = null;\n this.representation = null;\n this.period = null;\n this.timescale = 1;\n this.value = '';\n this.schemeIdUri = '';\n this.presentationTimeOffset = 0;\n }\n}\n\nexport default EventStream;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass ManifestInfo {\n constructor() {\n this.DVRWindowSize = NaN;\n this.loadedTime = null;\n this.availableFrom = null;\n this.minBufferTime = NaN;\n this.duration = NaN;\n this.isDynamic = false;\n this.maxFragmentDuration = null;\n }\n}\n\nexport default ManifestInfo;",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass MediaInfo {\n constructor() {\n this.id = null;\n this.index = null;\n this.type = null;\n this.streamInfo = null;\n this.representationCount = 0;\n this.lang = null;\n this.viewpoint = null;\n this.accessibility = null;\n this.audioChannelConfiguration = null;\n this.roles = null;\n this.codec = null;\n this.mimeType = null;\n this.contentProtection = null;\n this.isText = false;\n this.KID = null;\n this.bitrateList = null;\n }\n\n}\n\nexport default MediaInfo;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass Mpd {\n constructor() {\n this.manifest = null;\n this.suggestedPresentationDelay = 0;\n this.availabilityStartTime = null;\n this.availabilityEndTime = Number.POSITIVE_INFINITY;\n this.timeShiftBufferDepth = Number.POSITIVE_INFINITY;\n this.maxSegmentDuration = Number.POSITIVE_INFINITY;\n this.minimumUpdatePeriod = NaN;\n this.mediaPresentationDuration = NaN;\n }\n}\n\nexport default Mpd;",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass Mpd {\n constructor() {\n this.manifest = null;\n this.suggestedPresentationDelay = 0;\n this.availabilityStartTime = null;\n this.availabilityEndTime = Number.POSITIVE_INFINITY;\n this.timeShiftBufferDepth = Number.POSITIVE_INFINITY;\n this.maxSegmentDuration = Number.POSITIVE_INFINITY;\n this.publishTime = null;\n this.minimumUpdatePeriod = NaN;\n this.mediaPresentationDuration = NaN;\n }\n}\n\nexport default Mpd;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass PatchOperation {\n constructor(action, xpath, value) {\n this.action = action;\n this.xpath = xpath;\n this.value = value;\n this.position = null;\n }\n\n getMpdTarget(root) {\n let isSiblingOperation = this.action === 'remove' || this.action === 'replace' || this.position === 'before' || this.position === 'after';\n return this.xpath.getMpdTarget(root, isSiblingOperation);\n }\n}\n\nexport default PatchOperation;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass Period {\n constructor() {\n this.id = null;\n this.index = -1;\n this.duration = NaN;\n this.start = NaN;\n this.mpd = null;\n }\n}\n\nPeriod.DEFAULT_ID = 'defaultId';\n\nexport default Period;",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\n\nimport DashConstants from '../constants/DashConstants';\n\nclass Representation {\n constructor() {\n this.id = null;\n this.index = -1;\n this.adaptation = null;\n this.segmentInfoType = null;\n this.initialization = null;\n this.codecs = null;\n this.codecPrivateData = null;\n this.segmentDuration = NaN;\n this.timescale = 1;\n this.startNumber = 1;\n this.indexRange = null;\n this.range = null;\n this.presentationTimeOffset = 0;\n // Set the source buffer timeOffset to this\n this.MSETimeOffset = NaN;\n this.segmentAvailabilityRange = null;\n this.availableSegmentsNumber = 0;\n this.bandwidth = NaN;\n this.width = NaN;\n this.height = NaN;\n this.scanType = null;\n this.maxPlayoutRate = NaN;\n this.availabilityTimeOffset = 0;\n this.availabilityTimeComplete = true;\n }\n\n hasInitialization() {\n return (this.initialization !== null || this.range !== null);\n }\n\n hasSegments() {\n return this.segmentInfoType !== DashConstants.BASE_URL &&\n this.segmentInfoType !== DashConstants.SEGMENT_BASE &&\n !this.indexRange;\n }\n}\n\nexport default Representation;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass RepresentationInfo {\n constructor() {\n this.id = null;\n this.quality = null;\n this.DVRWindow = null;\n this.fragmentDuration = null;\n this.mediaInfo = null;\n this.MSETimeOffset = null;\n }\n}\n\nexport default RepresentationInfo;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass Segment {\n constructor() {\n this.indexRange = null;\n this.index = null;\n this.mediaRange = null;\n this.media = null;\n this.duration = NaN;\n // this is the time that should be inserted into the media url\n this.replacementTime = null;\n // this is the number that should be inserted into the media url\n this.replacementNumber = NaN;\n // This is supposed to match the time encoded in the media Segment\n this.mediaStartTime = NaN;\n // When the source buffer timeOffset is set to MSETimeOffset this is the\n // time that will match the seekTarget and video.currentTime\n this.presentationStartTime = NaN;\n // Do not schedule this segment until\n this.availabilityStartTime = NaN;\n // Ignore and discard this segment after\n this.availabilityEndTime = NaN;\n // The index of the segment inside the availability window\n this.availabilityIdx = NaN;\n // For dynamic mpd's, this is the wall clock time that the video\n // element currentTime should be presentationStartTime\n this.wallStartTime = NaN;\n this.representation = null;\n }\n}\n\nexport default Segment;",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass SimpleXPath {\n constructor(selector) {\n // establish validation of the path, to catch unsupported cases\n this.valid = selector[0] == '/'; // first check, we only support absolute addressing\n\n // establish parsed path, example:\n // /MPD/Period[@id=\"foobar\"]/AdaptationSet[@id=\"2\"]/SegmentTemplate/SegmentTimeline\n this.path = selector.split('/')\n .filter((component) => component.length !== 0) // remove excess empty components\n .map((component) => {\n let parsed = {\n name: component\n };\n\n let qualifierPoint = component.indexOf('[');\n if (qualifierPoint != -1) {\n parsed.name = component.substring(0, qualifierPoint);\n\n let qualifier = component.substring(qualifierPoint + 1, component.length - 1);\n\n // quick sanity check are there additional qualifiers making this invalid\n this.valid = this.valid && qualifier.indexOf('[') == -1;\n\n let equalityPoint = qualifier.indexOf('=');\n if (equalityPoint != -1) {\n parsed.attribute = {\n name: qualifier.substring(1, equalityPoint), // skip the @\n value: qualifier.substring(equalityPoint + 1)\n };\n\n // check for single and double quoted attribute values\n if (['\\'', '\"'].indexOf(parsed.attribute.value[0]) != -1) {\n parsed.attribute.value = parsed.attribute.value.substring(1, parsed.attribute.value.length - 1);\n }\n } else {\n // positional access in xpath is 1-based index\n // internal processes will assume 0-based so we normalize that here\n parsed.position = parseInt(qualifier, 10) - 1;\n }\n }\n\n return parsed;\n });\n }\n\n isValid() {\n return this.valid;\n }\n\n findsElement() {\n return !this.findsAttribute();\n }\n\n findsAttribute() {\n return this.path[this.path.length - 1].name.startsWith('@');\n }\n\n getMpdTarget(root, isSiblingOperation) {\n let parent = null;\n let leaf = root;\n // assume root is MPD and we start at next level match\n let level = 1;\n let name = 'MPD';\n\n while ( level < this.path.length && leaf !== null) {\n // set parent to current\n parent = leaf;\n\n // select next leaf based on component\n let component = this.path[level];\n name = component.name;\n\n // stop one early if this is the last element and an attribute\n if (level !== this.path.length - 1 || !name.startsWith('@')) {\n let children = parent[name + '_asArray'] || [];\n if (children.length === 0 && parent[name]) {\n children.push(parent[name]);\n }\n\n if (component.position) {\n leaf = children[component.position] || null;\n } else if (component.attribute) {\n let attr = component.attribute;\n leaf = children.filter((elm) => elm[attr.name] == attr.value)[0] || null;\n } else {\n // default case, select first\n leaf = children[0] || null;\n }\n }\n\n level++;\n }\n\n if (leaf === null) {\n // given path not found in root\n return null;\n }\n\n // attributes the target is the leaf node, the name is the attribute\n if (name.startsWith('@')) {\n return {\n name: name.substring(1),\n leaf: leaf,\n target: leaf\n };\n }\n\n // otherwise we target the parent for sibling operations and leaf for child operations\n return {\n name: name,\n leaf: leaf,\n target: isSiblingOperation ? parent : leaf\n };\n }\n}\n\nexport default SimpleXPath;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass StreamInfo {\n constructor() {\n this.id = null;\n this.index = null;\n this.start = NaN;\n this.duration = NaN;\n this.manifestInfo = null;\n this.isLast = true;\n }\n}\n\nexport default StreamInfo;",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass UTCTiming {\n constructor() {\n // UTCTiming is a DescriptorType and doesn't have any additional fields\n this.schemeIdUri = '';\n this.value = '';\n }\n}\n\nexport default UTCTiming;",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from './constants/Constants';\nimport URLLoader from './net/URLLoader';\nimport HeadRequest from './vo/HeadRequest';\nimport DashJSError from './vo/DashJSError';\nimport FactoryMaker from '../core/FactoryMaker';\n\nfunction FragmentLoader(config) {\n\n config = config || {};\n const context = this.context;\n const eventBus = config.eventBus;\n const events = config.events;\n const urlUtils = config.urlUtils;\n const errors = config.errors;\n\n let instance,\n urlLoader;\n\n function setup() {\n urlLoader = URLLoader(context).create({\n errHandler: config.errHandler,\n errors: errors,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n useFetch: config.settings.get().streaming.lowLatencyEnabled,\n urlUtils: urlUtils,\n constants: Constants,\n boxParser: config.boxParser,\n dashConstants: config.dashConstants,\n requestTimeout: config.settings.get().streaming.fragmentRequestTimeout\n });\n }\n\n function checkForExistence(request) {\n const report = function (success) {\n eventBus.trigger(events.CHECK_FOR_EXISTENCE_COMPLETED, {\n request: request,\n exists: success\n }\n );\n };\n\n if (request) {\n let headRequest = new HeadRequest(request.url);\n urlLoader.load({\n request: headRequest,\n success: function () {\n report(true);\n },\n error: function () {\n report(false);\n }\n });\n } else {\n report(false);\n }\n }\n\n function load(request) {\n const report = function (data, error) {\n eventBus.trigger(events.LOADING_COMPLETED, {\n request: request,\n response: data || null,\n error: error || null,\n sender: instance\n });\n };\n\n if (request) {\n urlLoader.load({\n request: request,\n progress: function (event) {\n eventBus.trigger(events.LOADING_PROGRESS, {\n request: request,\n stream: event.stream\n });\n if (event.data) {\n eventBus.trigger(events.LOADING_DATA_PROGRESS, {\n request: request,\n response: event.data || null,\n error: null,\n sender: instance\n });\n }\n },\n success: function (data) {\n report(data);\n },\n error: function (request, statusText, errorText) {\n report(\n undefined,\n new DashJSError(\n errors.FRAGMENT_LOADER_LOADING_FAILURE_ERROR_CODE,\n errorText,\n statusText\n )\n );\n },\n abort: function (request) {\n if (request) {\n eventBus.trigger(events.LOADING_ABANDONED, {\n mediaType: request.mediaType,\n request: request,\n sender: instance\n });\n }\n }\n });\n } else {\n report(\n undefined,\n new DashJSError(\n errors.FRAGMENT_LOADER_NULL_REQUEST_ERROR_CODE,\n errors.FRAGMENT_LOADER_NULL_REQUEST_ERROR_MESSAGE\n )\n );\n }\n }\n\n function abort() {\n if (urlLoader) {\n urlLoader.abort();\n }\n }\n\n function reset() {\n if (urlLoader) {\n urlLoader.abort();\n urlLoader = null;\n }\n }\n\n instance = {\n checkForExistence: checkForExistence,\n load: load,\n abort: abort,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nFragmentLoader.__dashjs_factory_name = 'FragmentLoader';\nexport default FactoryMaker.getClassFactory(FragmentLoader);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport XlinkController from './controllers/XlinkController';\nimport URLLoader from './net/URLLoader';\nimport URLUtils from './utils/URLUtils';\nimport TextRequest from './vo/TextRequest';\nimport DashJSError from './vo/DashJSError';\nimport {HTTPRequest} from './vo/metrics/HTTPRequest';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport Errors from '../core/errors/Errors';\nimport FactoryMaker from '../core/FactoryMaker';\nimport DashParser from '../dash/parser/DashParser';\n\nfunction ManifestLoader(config) {\n\n config = config || {};\n const context = this.context;\n const debug = config.debug;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n logger,\n urlLoader,\n xlinkController,\n parser;\n\n let mssHandler = config.mssHandler;\n let errHandler = config.errHandler;\n\n function setup() {\n logger = debug.getLogger(instance);\n eventBus.on(Events.XLINK_READY, onXlinkReady, instance);\n\n urlLoader = URLLoader(context).create({\n errHandler: config.errHandler,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n useFetch: config.settings.get().streaming.lowLatencyEnabled,\n urlUtils: urlUtils,\n constants: Constants,\n dashConstants: DashConstants,\n errors: Errors\n });\n\n xlinkController = XlinkController(context).create({\n errHandler: errHandler,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n settings: config.settings\n });\n\n parser = null;\n }\n\n function onXlinkReady(event) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, { manifest: event.manifest });\n }\n\n function createParser(data) {\n let parser = null;\n // Analyze manifest content to detect protocol and select appropriate parser\n if (data.indexOf('SmoothStreamingMedia') > -1) {\n //do some business to transform it into a Dash Manifest\n if (mssHandler) {\n parser = mssHandler.createMssParser();\n mssHandler.registerEvents();\n }\n return parser;\n } else if (data.indexOf('MPD') > -1) {\n return DashParser(context).create({debug: debug});\n } else {\n return parser;\n }\n }\n\n function load(url) {\n\n const request = new TextRequest(url, HTTPRequest.MPD_TYPE);\n\n urlLoader.load({\n request: request,\n success: function (data, textStatus, responseURL) {\n // Manage situations in which success is called after calling reset\n if (!xlinkController) return;\n\n let actualUrl,\n baseUri,\n manifest;\n\n // Handle redirects for the MPD - as per RFC3986 Section 5.1.3\n // also handily resolves relative MPD URLs to absolute\n if (responseURL && responseURL !== url) {\n baseUri = urlUtils.parseBaseUrl(responseURL);\n actualUrl = responseURL;\n } else {\n // usually this case will be caught and resolved by\n // responseURL above but it is not available for IE11 and Edge/12 and Edge/13\n // baseUri must be absolute for BaseURL resolution later\n if (urlUtils.isRelative(url)) {\n url = urlUtils.resolve(url, window.location.href);\n }\n\n baseUri = urlUtils.parseBaseUrl(url);\n }\n\n // Create parser according to manifest type\n if (parser === null) {\n parser = createParser(data);\n }\n\n if (parser === null) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + `${url}`\n )\n });\n return;\n }\n\n // init xlinkcontroller with matchers and iron object from created parser\n xlinkController.setMatchers(parser.getMatchers());\n xlinkController.setIron(parser.getIron());\n\n try {\n manifest = parser.parse(data);\n } catch (e) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + `${url}`\n )\n });\n return;\n }\n\n if (manifest) {\n manifest.url = actualUrl || url;\n\n // URL from which the MPD was originally retrieved (MPD updates will not change this value)\n if (!manifest.originalUrl) {\n manifest.originalUrl = manifest.url;\n }\n\n // In the following, we only use the first Location entry even if many are available\n // Compare with ManifestUpdater/DashManifestModel\n if (manifest.hasOwnProperty(Constants.LOCATION)) {\n baseUri = urlUtils.parseBaseUrl(manifest.Location_asArray[0]);\n logger.debug('BaseURI set by Location to: ' + baseUri);\n }\n\n manifest.baseUri = baseUri;\n manifest.loadedTime = new Date();\n xlinkController.resolveManifestOnLoad(manifest);\n\n eventBus.trigger(Events.ORIGINAL_MANIFEST_LOADED, { originalManifest: data });\n } else {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + `${url}`\n )\n });\n }\n },\n error: function (request, statusText, errorText) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_LOADING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_LOADING_FAILURE_ERROR_MESSAGE + `${url}, ${errorText}`\n )\n });\n }\n });\n }\n\n function reset() {\n eventBus.off(Events.XLINK_READY, onXlinkReady, instance);\n\n if (xlinkController) {\n xlinkController.reset();\n xlinkController = null;\n }\n\n if (urlLoader) {\n urlLoader.abort();\n urlLoader = null;\n }\n\n if (mssHandler) {\n mssHandler.reset();\n }\n }\n\n instance = {\n load: load,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nManifestLoader.__dashjs_factory_name = 'ManifestLoader';\n\nconst factory = FactoryMaker.getClassFactory(ManifestLoader);\nexport default factory;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport FactoryMaker from '../core/FactoryMaker';\nimport Debug from '../core/Debug';\nimport Errors from '../core/errors/Errors';\nimport DashConstants from '../dash/constants/DashConstants';\n\nfunction ManifestUpdater() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n refreshDelay,\n refreshTimer,\n isPaused,\n isStopped,\n isUpdating,\n manifestLoader,\n manifestModel,\n adapter,\n errHandler,\n settings;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.manifestModel) {\n manifestModel = config.manifestModel;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.manifestLoader) {\n manifestLoader = config.manifestLoader;\n }\n if (config.errHandler) {\n errHandler = config.errHandler;\n }\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n function initialize() {\n resetInitialSettings();\n\n eventBus.on(Events.STREAMS_COMPOSED, onStreamsComposed, this);\n eventBus.on(Events.PLAYBACK_STARTED, onPlaybackStarted, this);\n eventBus.on(Events.PLAYBACK_PAUSED, onPlaybackPaused, this);\n eventBus.on(Events.INTERNAL_MANIFEST_LOADED, onManifestLoaded, this);\n }\n\n function setManifest(manifest) {\n update(manifest);\n }\n\n function resetInitialSettings() {\n refreshDelay = NaN;\n isUpdating = false;\n isPaused = true;\n isStopped = false;\n stopManifestRefreshTimer();\n }\n\n function reset() {\n\n eventBus.off(Events.PLAYBACK_STARTED, onPlaybackStarted, this);\n eventBus.off(Events.PLAYBACK_PAUSED, onPlaybackPaused, this);\n eventBus.off(Events.STREAMS_COMPOSED, onStreamsComposed, this);\n eventBus.off(Events.INTERNAL_MANIFEST_LOADED, onManifestLoaded, this);\n\n resetInitialSettings();\n }\n\n function stopManifestRefreshTimer() {\n if (refreshTimer !== null) {\n clearTimeout(refreshTimer);\n refreshTimer = null;\n }\n }\n\n function startManifestRefreshTimer(delay) {\n stopManifestRefreshTimer();\n\n if (isStopped) {\n return;\n }\n\n if (isNaN(delay) && !isNaN(refreshDelay)) {\n delay = refreshDelay * 1000;\n }\n\n if (!isNaN(delay)) {\n logger.debug('Refresh manifest in ' + delay + ' milliseconds.');\n refreshTimer = setTimeout(onRefreshTimer, delay);\n }\n }\n\n function refreshManifest() {\n isUpdating = true;\n const manifest = manifestModel.getValue();\n let url = manifest.url;\n const location = adapter.getLocation(manifest);\n if (location) {\n url = location;\n }\n manifestLoader.load(url);\n }\n\n function update(manifest) {\n\n // See DASH-IF IOP v4.3 section 4.6.4 \"Transition Phase between Live and On-Demand\"\n // Stop manifest update, ignore static manifest and signal end of dynamic stream to detect end of stream\n if (manifestModel.getValue() && manifestModel.getValue().type === DashConstants.DYNAMIC && manifest.type === DashConstants.STATIC) {\n eventBus.trigger(Events.DYNAMIC_TO_STATIC);\n isUpdating = false;\n isStopped = true;\n return;\n }\n\n manifestModel.setValue(manifest);\n\n const date = new Date();\n const latencyOfLastUpdate = (date.getTime() - manifest.loadedTime.getTime()) / 1000;\n refreshDelay = adapter.getManifestUpdatePeriod(manifest, latencyOfLastUpdate);\n // setTimeout uses a 32 bit number to store the delay. Any number greater than it\n // will cause event associated with setTimeout to trigger immediately\n if (refreshDelay * 1000 > 0x7FFFFFFF) {\n refreshDelay = 0x7FFFFFFF / 1000;\n }\n eventBus.trigger(Events.MANIFEST_UPDATED, { manifest: manifest });\n logger.info('Manifest has been refreshed at ' + date + '[' + date.getTime() / 1000 + '] ');\n\n if (!isPaused) {\n startManifestRefreshTimer();\n }\n }\n\n function onRefreshTimer() {\n if (isPaused) {\n return;\n }\n if (isUpdating) {\n startManifestRefreshTimer(settings.get().streaming.manifestUpdateRetryInterval);\n return;\n }\n refreshManifest();\n }\n\n function onManifestLoaded(e) {\n if (!e.error) {\n update(e.manifest);\n } else if (e.error.code === Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE) {\n errHandler.error(e.error);\n }\n }\n\n function onPlaybackStarted (/*e*/) {\n isPaused = false;\n startManifestRefreshTimer();\n }\n\n function onPlaybackPaused(/*e*/) {\n isPaused = !settings.get().streaming.scheduleWhilePaused;\n\n if (isPaused) {\n stopManifestRefreshTimer();\n }\n }\n\n function onStreamsComposed(/*e*/) {\n // When streams are ready we can consider manifest update completed. Resolve the update promise.\n isUpdating = false;\n }\n\n instance = {\n initialize: initialize,\n setManifest: setManifest,\n refreshManifest: refreshManifest,\n setConfig: setConfig,\n reset: reset\n };\n\n setup();\n return instance;\n}\nManifestUpdater.__dashjs_factory_name = 'ManifestUpdater';\nexport default FactoryMaker.getClassFactory(ManifestUpdater);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport cea608parser from '../../externals/cea608-parser';\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport MetricsConstants from './constants/MetricsConstants';\nimport PlaybackController from './controllers/PlaybackController';\nimport StreamController from './controllers/StreamController';\nimport GapController from './controllers/GapController';\nimport MediaController from './controllers/MediaController';\nimport BaseURLController from './controllers/BaseURLController';\nimport ManifestLoader from './ManifestLoader';\nimport ErrorHandler from './utils/ErrorHandler';\nimport Capabilities from './utils/Capabilities';\nimport TextTracks from './text/TextTracks';\nimport RequestModifier from './utils/RequestModifier';\nimport TextController from './text/TextController';\nimport URIFragmentModel from './models/URIFragmentModel';\nimport ManifestModel from './models/ManifestModel';\nimport MediaPlayerModel from './models/MediaPlayerModel';\nimport AbrController from './controllers/AbrController';\nimport SchemeLoaderFactory from './net/SchemeLoaderFactory';\nimport VideoModel from './models/VideoModel';\nimport CmcdModel from './models/CmcdModel';\nimport DOMStorage from './utils/DOMStorage';\nimport Debug from './../core/Debug';\nimport Errors from './../core/errors/Errors';\nimport EventBus from './../core/EventBus';\nimport Events from './../core/events/Events';\nimport MediaPlayerEvents from './MediaPlayerEvents';\nimport FactoryMaker from '../core/FactoryMaker';\nimport Settings from '../core/Settings';\nimport {\n getVersionString\n}\nfrom './../core/Version';\n\n//Dash\nimport SegmentBaseController from '../dash/controllers/SegmentBaseController';\nimport DashAdapter from '../dash/DashAdapter';\nimport DashMetrics from '../dash/DashMetrics';\nimport TimelineConverter from '../dash/utils/TimelineConverter';\nimport {\n HTTPRequest\n} from './vo/metrics/HTTPRequest';\nimport BASE64 from '../../externals/base64';\nimport ISOBoxer from 'codem-isoboxer';\nimport DashJSError from './vo/DashJSError';\nimport { checkParameterType } from './utils/SupervisorTools';\nimport ManifestUpdater from './ManifestUpdater';\nimport URLUtils from '../streaming/utils/URLUtils';\nimport BoxParser from './utils/BoxParser';\n\n/* jscs:disable */\n/**\n * The media types\n * @typedef {(\"video\" | \"audio\" | \"text\" | \"fragmentedText\" | \"embeddedText\" | \"image\")} MediaType\n */\n/* jscs:enable */\n\n/**\n * @module MediaPlayer\n * @description The MediaPlayer is the primary dash.js Module and a Facade to build your player around.\n * It will allow you access to all the important dash.js properties/methods via the public API and all the\n * events to build a robust DASH media player.\n */\nfunction MediaPlayer() {\n /**\n * @constant {string} STREAMING_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized\n * @inner\n */\n const STREAMING_NOT_INITIALIZED_ERROR = 'You must first call initialize() and set a source before calling this method';\n /**\n * @constant {string} PLAYBACK_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized\n * @inner\n */\n const PLAYBACK_NOT_INITIALIZED_ERROR = 'You must first call initialize() and set a valid source and view before calling this method';\n /**\n * @constant {string} ELEMENT_NOT_ATTACHED_ERROR error string thrown when a function is called before the dash.js has received a reference of an HTML5 video element\n * @inner\n */\n const ELEMENT_NOT_ATTACHED_ERROR = 'You must first call attachView() to set the video element before calling this method';\n /**\n * @constant {string} SOURCE_NOT_ATTACHED_ERROR error string thrown when a function is called before the dash.js has received a valid source stream.\n * @inner\n */\n const SOURCE_NOT_ATTACHED_ERROR = 'You must first call attachSource() with a valid source before calling this method';\n /**\n * @constant {string} MEDIA_PLAYER_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized.\n * @inner\n */\n const MEDIA_PLAYER_NOT_INITIALIZED_ERROR = 'MediaPlayer not initialized!';\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n let settings = Settings(context).getInstance();\n const debug = Debug(context).getInstance({settings: settings});\n\n let instance,\n logger,\n source,\n protectionData,\n mediaPlayerInitialized,\n streamingInitialized,\n playbackInitialized,\n autoPlay,\n abrController,\n schemeLoaderFactory,\n timelineConverter,\n mediaController,\n protectionController,\n metricsReportingController,\n mssHandler,\n offlineController,\n adapter,\n mediaPlayerModel,\n errHandler,\n baseURLController,\n capabilities,\n streamController,\n gapController,\n playbackController,\n dashMetrics,\n manifestModel,\n cmcdModel,\n videoModel,\n textController,\n uriFragmentModel,\n domStorage,\n segmentBaseController;\n\n /*\n ---------------------------------------------------------------------------\n\n INIT FUNCTIONS\n\n ---------------------------------------------------------------------------\n */\n function setup() {\n logger = debug.getLogger(instance);\n mediaPlayerInitialized = false;\n playbackInitialized = false;\n streamingInitialized = false;\n autoPlay = true;\n protectionController = null;\n offlineController = null;\n protectionData = null;\n adapter = null;\n segmentBaseController = null;\n Events.extend(MediaPlayerEvents);\n mediaPlayerModel = MediaPlayerModel(context).getInstance();\n videoModel = VideoModel(context).getInstance();\n uriFragmentModel = URIFragmentModel(context).getInstance();\n }\n\n /**\n * Configure media player with customs controllers. Helpful for tests\n *\n * @param {object=} config controllers configuration\n * @memberof module:MediaPlayer\n * @instance\n */\n function setConfig(config) {\n if (!config) {\n return;\n }\n if (config.capabilities) {\n capabilities = config.capabilities;\n }\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.gapController) {\n gapController = config.gapController;\n }\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n if (config.mediaPlayerModel) {\n mediaPlayerModel = config.mediaPlayerModel;\n }\n if (config.abrController) {\n abrController = config.abrController;\n }\n if (config.schemeLoaderFactory) {\n schemeLoaderFactory = config.schemeLoaderFactory;\n }\n if (config.mediaController) {\n mediaController = config.mediaController;\n }\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n /**\n * Upon creating the MediaPlayer you must call initialize before you call anything else.\n * There is one exception to this rule. It is crucial to call {@link module:MediaPlayer#extend extend()}\n * with all your extensions prior to calling initialize.\n *\n * ALL arguments are optional and there are individual methods to set each argument later on.\n * The args in this method are just for convenience and should only be used for a simple player setup.\n *\n * @param {HTML5MediaElement=} view - Optional arg to set the video element. {@link module:MediaPlayer#attachView attachView()}\n * @param {string=} source - Optional arg to set the media source. {@link module:MediaPlayer#attachSource attachSource()}\n * @param {boolean=} AutoPlay - Optional arg to set auto play. {@link module:MediaPlayer#setAutoPlay setAutoPlay()}\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @see {@link module:MediaPlayer#setAutoPlay setAutoPlay()}\n * @memberof module:MediaPlayer\n * @instance\n */\n function initialize(view, source, AutoPlay) {\n if (!capabilities) {\n capabilities = Capabilities(context).getInstance();\n }\n errHandler = ErrorHandler(context).getInstance();\n\n if (!capabilities.supportsMediaSource()) {\n errHandler.error(new DashJSError(Errors.CAPABILITY_MEDIASOURCE_ERROR_CODE, Errors.CAPABILITY_MEDIASOURCE_ERROR_MESSAGE));\n return;\n }\n\n if (mediaPlayerInitialized) return;\n mediaPlayerInitialized = true;\n\n // init some controllers and models\n timelineConverter = TimelineConverter(context).getInstance();\n if (!abrController) {\n abrController = AbrController(context).getInstance();\n abrController.setConfig({\n settings: settings\n });\n }\n\n if (!schemeLoaderFactory) {\n schemeLoaderFactory = SchemeLoaderFactory(context).getInstance();\n }\n\n if (!playbackController) {\n playbackController = PlaybackController(context).getInstance();\n }\n\n if (!mediaController) {\n mediaController = MediaController(context).getInstance();\n }\n\n if (!streamController) {\n streamController = StreamController(context).getInstance();\n }\n\n if (!gapController) {\n gapController = GapController(context).getInstance();\n }\n\n adapter = DashAdapter(context).getInstance();\n\n manifestModel = ManifestModel(context).getInstance();\n\n cmcdModel = CmcdModel(context).getInstance();\n\n dashMetrics = DashMetrics(context).getInstance({\n settings: settings\n });\n textController = TextController(context).getInstance();\n domStorage = DOMStorage(context).getInstance({\n settings: settings\n });\n\n adapter.setConfig({\n constants: Constants,\n cea608parser: cea608parser,\n errHandler: errHandler,\n BASE64: BASE64\n });\n\n if (!baseURLController) {\n baseURLController = BaseURLController(context).create();\n }\n\n baseURLController.setConfig({\n adapter: adapter\n });\n\n\n segmentBaseController = SegmentBaseController(context).getInstance({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n errHandler: errHandler,\n baseURLController: baseURLController,\n events: Events,\n eventBus: eventBus,\n debug: debug,\n boxParser: BoxParser(context).getInstance(),\n requestModifier: RequestModifier(context).getInstance(),\n errors: Errors\n });\n\n segmentBaseController.initialize();\n\n // configure controllers\n mediaController.setConfig({\n domStorage: domStorage,\n settings: settings\n });\n\n restoreDefaultUTCTimingSources();\n setAutoPlay(AutoPlay !== undefined ? AutoPlay : true);\n\n // Detect and initialize offline module to support offline contents playback\n detectOffline();\n\n if (view) {\n attachView(view);\n }\n\n if (source) {\n attachSource(source);\n }\n\n logger.info('[dash.js ' + getVersion() + '] ' + 'MediaPlayer has been initialized');\n }\n\n /**\n * Sets the MPD source and the video element to null. You can also reset the MediaPlayer by\n * calling attachSource with a new source file.\n *\n * This call does not destroy the MediaPlayer. To destroy the MediaPlayer and free all of its\n * memory, call destroy().\n *\n * @memberof module:MediaPlayer\n * @instance\n */\n function reset() {\n attachSource(null);\n attachView(null);\n protectionData = null;\n if (protectionController) {\n protectionController.reset();\n protectionController = null;\n }\n if (metricsReportingController) {\n metricsReportingController.reset();\n metricsReportingController = null;\n }\n\n segmentBaseController.reset();\n\n settings.reset();\n\n if (offlineController) {\n offlineController.reset();\n offlineController = null;\n }\n }\n\n /**\n * Completely destroys the media player and frees all memory.\n *\n * @memberof module:MediaPlayer\n * @instance\n */\n function destroy() {\n reset();\n FactoryMaker.deleteSingletonInstances(context);\n }\n\n /**\n * The ready state of the MediaPlayer based on both the video element and MPD source being defined.\n *\n * @returns {boolean} The current ready state of the MediaPlayer\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @memberof module:MediaPlayer\n * @instance\n */\n function isReady() {\n return (!!source && !!videoModel.getElement());\n }\n\n /**\n * Use the on method to listen for public events found in MediaPlayer.events. {@link MediaPlayerEvents}\n *\n * @param {string} type - {@link MediaPlayerEvents}\n * @param {Function} listener - callback method when the event fires.\n * @param {Object} scope - context of the listener so it can be removed properly.\n * @param {Object} options - object to define various options such as priority and mode\n * @memberof module:MediaPlayer\n * @instance\n */\n function on(type, listener, scope, options) {\n eventBus.on(type, listener, scope, options);\n }\n\n /**\n * Use the off method to remove listeners for public events found in MediaPlayer.events. {@link MediaPlayerEvents}\n *\n * @param {string} type - {@link MediaPlayerEvents}\n * @param {Function} listener - callback method when the event fires.\n * @param {Object} scope - context of the listener so it can be removed properly.\n * @memberof module:MediaPlayer\n * @instance\n */\n function off(type, listener, scope) {\n eventBus.off(type, listener, scope);\n }\n\n /**\n * Current version of Dash.js\n * @returns {string} the current dash.js version string.\n * @memberof module:MediaPlayer\n * @instance\n */\n function getVersion() {\n return getVersionString();\n }\n\n /**\n * Use this method to access the dash.js logging class.\n *\n * @returns {Debug}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDebug() {\n return debug;\n }\n\n /*\n ---------------------------------------------------------------------------\n\n PLAYBACK FUNCTIONS\n\n ---------------------------------------------------------------------------\n */\n\n /**\n * Causes the player to begin streaming the media as set by the {@link module:MediaPlayer#attachSource attachSource()}\n * method in preparation for playing. It specifically does not require a view to be attached with {@link module:MediaPlayer#attachSource attachView()} to begin preloading.\n * When a view is attached after preloading, the buffered data is transferred to the attached mediaSource buffers.\n *\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~SOURCE_NOT_ATTACHED_ERROR SOURCE_NOT_ATTACHED_ERROR} if called before attachSource function\n * @instance\n */\n function preload() {\n if (videoModel.getElement() || streamingInitialized) {\n return false;\n }\n if (source) {\n initializePlayback();\n } else {\n throw SOURCE_NOT_ATTACHED_ERROR;\n }\n }\n\n /**\n * The play method initiates playback of the media defined by the {@link module:MediaPlayer#attachSource attachSource()} method.\n * This method will call play on the native Video Element.\n *\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function play() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n if (!autoPlay || (isPaused() && playbackInitialized)) {\n playbackController.play();\n }\n }\n\n /**\n * This method will call pause on the native Video Element.\n *\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function pause() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n playbackController.pause();\n }\n\n /**\n * Returns a Boolean that indicates whether the Video Element is paused.\n * @return {boolean}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function isPaused() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return playbackController.isPaused();\n }\n\n /**\n * Sets the currentTime property of the attached video element. If it is a live stream with a\n * timeShiftBufferLength, then the DVR window offset will be automatically calculated.\n *\n * @param {number} value - A relative time, in seconds, based on the return value of the {@link module:MediaPlayer#duration duration()} method is expected\n * @see {@link module:MediaPlayer#getDVRSeekOffset getDVRSeekOffset()}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not number type or is NaN.\n * @memberof module:MediaPlayer\n * @instance\n */\n function seek(value) {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n\n checkParameterType(value, 'number');\n\n if (isNaN(value)) {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n\n let s = playbackController.getIsDynamic() ? getDVRSeekOffset(value) : value;\n playbackController.seek(s);\n }\n\n /**\n * Returns a Boolean that indicates whether the media is in the process of seeking to a new position.\n * @return {boolean}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function isSeeking() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return playbackController.isSeeking();\n }\n\n /**\n * Returns a Boolean that indicates whether the media is in the process of dynamic.\n * @return {boolean}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function isDynamic() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return playbackController.getIsDynamic();\n }\n\n /**\n * Use this method to set the native Video Element's playback rate.\n * @param {number} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function setPlaybackRate(value) {\n getVideoElement().playbackRate = value;\n }\n\n /**\n * Returns the current playback rate.\n * @returns {number}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getPlaybackRate() {\n return getVideoElement().playbackRate;\n }\n\n /**\n * Use this method to set the native Video Element's muted state. Takes a Boolean that determines whether audio is muted. true if the audio is muted and false otherwise.\n * @param {boolean} value\n * @memberof module:MediaPlayer\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not boolean type.\n * @instance\n */\n function setMute(value) {\n checkParameterType(value, 'boolean');\n getVideoElement().muted = value;\n }\n\n /**\n * A Boolean that determines whether audio is muted.\n * @returns {boolean}\n * @memberof module:MediaPlayer\n * @instance\n */\n function isMuted() {\n return getVideoElement().muted;\n }\n\n /**\n * A double indicating the audio volume, from 0.0 (silent) to 1.0 (loudest).\n * @param {number} value\n * @memberof module:MediaPlayer\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not number type, or is NaN or not between 0 and 1.\n * @instance\n */\n function setVolume(value) {\n if (typeof value !== 'number' || isNaN(value) || value < 0.0 || value > 1.0) {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n getVideoElement().volume = value;\n }\n\n /**\n * Returns the current audio volume, from 0.0 (silent) to 1.0 (loudest).\n * @returns {number}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getVolume() {\n return getVideoElement().volume;\n }\n\n /**\n * The length of the buffer for a given media type, in seconds. Valid media\n * types are \"video\", \"audio\" and \"fragmentedText\". If no type is passed\n * in, then the minimum of video, audio and fragmentedText buffer length is\n * returned. NaN is returned if an invalid type is requested, the\n * presentation does not contain that type, or if no arguments are passed\n * and the presentation does not include any adaption sets of valid media\n * type.\n *\n * @param {MediaType} type - 'video', 'audio' or 'fragmentedText'\n * @returns {number} The length of the buffer for the given media type, in\n * seconds, or NaN\n * @memberof module:MediaPlayer\n * @instance\n */\n function getBufferLength(type) {\n const types = [Constants.VIDEO, Constants.AUDIO, Constants.FRAGMENTED_TEXT];\n if (!type) {\n const buffer = types.map(\n t => getTracksFor(t).length > 0 ? getDashMetrics().getCurrentBufferLevel(t) : Number.MAX_VALUE\n ).reduce(\n (p, c) => Math.min(p, c)\n );\n return buffer === Number.MAX_VALUE ? NaN : buffer;\n } else {\n if (types.indexOf(type) !== -1) {\n const buffer = getDashMetrics().getCurrentBufferLevel(type);\n return buffer ? buffer : NaN;\n } else {\n logger.warn('getBufferLength requested for invalid type');\n return NaN;\n }\n }\n }\n\n /**\n * The timeShiftBufferLength (DVR Window), in seconds.\n *\n * @returns {number} The window of allowable play time behind the live point of a live stream.\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDVRWindowSize() {\n let metric = dashMetrics.getCurrentDVRInfo();\n if (!metric) {\n return 0;\n }\n return metric.manifestInfo.DVRWindowSize;\n }\n\n /**\n * This method should only be used with a live stream that has a valid timeShiftBufferLength (DVR Window).\n * NOTE - If you do not need the raw offset value (i.e. media analytics, tracking, etc) consider using the {@link module:MediaPlayer#seek seek()} method\n * which will calculate this value for you and set the video element's currentTime property all in one simple call.\n *\n * @param {number} value - A relative time, in seconds, based on the return value of the {@link module:MediaPlayer#duration duration()} method is expected.\n * @returns {number} A value that is relative the available range within the timeShiftBufferLength (DVR Window).\n * @see {@link module:MediaPlayer#seek seek()}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDVRSeekOffset(value) {\n let metric = dashMetrics.getCurrentDVRInfo();\n if (!metric) {\n return 0;\n }\n\n let liveDelay = playbackController.getLiveDelay();\n\n let val = metric.range.start + value;\n\n if (val > (metric.range.end - liveDelay)) {\n val = metric.range.end - liveDelay;\n }\n\n return val;\n }\n\n /**\n * Current time of the playhead, in seconds.\n *\n * If called with no arguments then the returned time value is time elapsed since the start point of the first stream, or if it is a live stream, then the time will be based on the return value of the {@link module:MediaPlayer#duration duration()} method.\n * However if a stream ID is supplied then time is relative to the start of that stream, or is null if there is no such stream id in the manifest.\n *\n * @param {string} streamId - The ID of a stream that the returned playhead time must be relative to the start of. If undefined, then playhead time is relative to the first stream.\n * @returns {number} The current playhead time of the media, or null.\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function time(streamId) {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n let t = getVideoElement().currentTime;\n\n if (streamId !== undefined) {\n t = streamController.getTimeRelativeToStreamId(t, streamId);\n } else if (playbackController.getIsDynamic()) {\n let metric = dashMetrics.getCurrentDVRInfo();\n t = (metric === null) ? 0 : duration() - (metric.range.end - metric.time);\n }\n\n return t;\n }\n\n /**\n * Duration of the media's playback, in seconds.\n *\n * @returns {number} The current duration of the media.\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function duration() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n let d = getVideoElement().duration;\n\n if (playbackController.getIsDynamic()) {\n\n let metric = dashMetrics.getCurrentDVRInfo();\n let range;\n\n if (!metric) {\n return 0;\n }\n\n range = metric.range.end - metric.range.start;\n d = range < metric.manifestInfo.DVRWindowSize ? range : metric.manifestInfo.DVRWindowSize;\n }\n return d;\n }\n\n /**\n * Use this method to get the current playhead time as an absolute value, the time in seconds since midnight UTC, Jan 1 1970.\n * Note - this property only has meaning for live streams. If called before play() has begun, it will return a value of NaN.\n *\n * @returns {number} The current playhead time as UTC timestamp.\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function timeAsUTC() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n if (time() < 0) {\n return NaN;\n }\n return getAsUTC(time());\n }\n\n /**\n * Use this method to get the current duration as an absolute value, the time in seconds since midnight UTC, Jan 1 1970.\n * Note - this property only has meaning for live streams.\n *\n * @returns {number} The current duration as UTC timestamp.\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function durationAsUTC() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return getAsUTC(duration());\n }\n\n /*\n ---------------------------------------------------------------------------\n\n AUTO BITRATE\n\n ---------------------------------------------------------------------------\n */\n /**\n * Gets the top quality BitrateInfo checking portal limit and max allowed.\n * It calls getTopQualityIndexFor internally\n *\n * @param {MediaType} type - 'video' or 'audio'\n * @memberof module:MediaPlayer\n * @returns {BitrateInfo | null}\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getTopBitrateInfoFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n return abrController.getTopBitrateInfoFor(type);\n }\n\n /**\n * Gets the current download quality for media type video, audio or images. For video and audio types the ABR\n * rules update this value before every new download unless setAutoSwitchQualityFor(type, false) is called. For 'image'\n * type, thumbnails, there is no ABR algorithm and quality is set manually.\n *\n * @param {MediaType} type - 'video', 'audio' or 'image' (thumbnails)\n * @returns {number} the quality index, 0 corresponding to the lowest bitrate\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#setAutoSwitchQualityFor setAutoSwitchQualityFor()}\n * @see {@link module:MediaPlayer#setQualityFor setQualityFor()}\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getQualityFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n if (type === Constants.IMAGE) {\n const activeStream = getActiveStream();\n if (!activeStream) {\n return -1;\n }\n const thumbnailController = activeStream.getThumbnailController();\n\n return !thumbnailController ? -1 : thumbnailController.getCurrentTrackIndex();\n }\n return abrController.getQualityFor(type);\n }\n\n /**\n * Sets the current quality for media type instead of letting the ABR Heuristics automatically selecting it.\n * This value will be overwritten by the ABR rules unless setAutoSwitchQualityFor(type, false) is called.\n *\n * @param {MediaType} type - 'video', 'audio' or 'image'\n * @param {number} value - the quality index, 0 corresponding to the lowest bitrate\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#setAutoSwitchQualityFor setAutoSwitchQualityFor()}\n * @see {@link module:MediaPlayer#getQualityFor getQualityFor()}\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function setQualityFor(type, value) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n if (type === Constants.IMAGE) {\n const activeStream = getActiveStream();\n if (!activeStream) {\n return;\n }\n const thumbnailController = activeStream.getThumbnailController();\n if (thumbnailController) {\n thumbnailController.setTrackByIndex(value);\n }\n }\n abrController.setPlaybackQuality(type, streamController.getActiveStreamInfo(), value);\n }\n\n /**\n * Update the video element size variables\n * Should be called on window resize (or any other time player is resized). Fullscreen does trigger a window resize event.\n *\n * Once windowResizeEventCalled = true, abrController.checkPortalSize() will use element size variables rather than querying clientWidth every time.\n *\n * @memberof module:MediaPlayer\n * @instance\n */\n function updatePortalSize() {\n abrController.setElementSize();\n abrController.setWindowResizeEventCalled(true);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n MEDIA PLAYER CONFIGURATION\n\n ---------------------------------------------------------------------------\n */\n /**\n * Set to false to prevent stream from auto-playing when the view is attached.
\n *\n * @param {boolean} value\n * @default true\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not boolean type.\n * @instance\n *\n */\n function setAutoPlay(value) {\n checkParameterType(value, 'boolean');\n autoPlay = value;\n }\n\n /**\n * @returns {boolean} The current autoPlay state.\n * @memberof module:MediaPlayer\n * @instance\n */\n function getAutoPlay() {\n return autoPlay;\n }\n\n /**\n * @memberof module:MediaPlayer\n * @instance\n * @returns {number|NaN} Current live stream latency in seconds. It is the difference between current time and time position at the playback head.\n * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n */\n function getCurrentLiveLatency() {\n if (!mediaPlayerInitialized) {\n throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;\n }\n\n if (!playbackInitialized) {\n return NaN;\n }\n\n return playbackController.getCurrentLiveLatency();\n }\n\n /**\n * Add a custom ABR Rule\n * Rule will be apply on next stream if a stream is being played\n *\n * @param {string} type - rule type (one of ['qualitySwitchRules','abandonFragmentRules'])\n * @param {string} rulename - name of rule (used to identify custom rule). If one rule of same name has been added, then existing rule will be updated\n * @param {object} rule - the rule object instance\n * @memberof module:MediaPlayer\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with invalid arguments.\n * @instance\n */\n function addABRCustomRule(type, rulename, rule) {\n mediaPlayerModel.addABRCustomRule(type, rulename, rule);\n }\n\n /**\n * Remove a custom ABR Rule\n *\n * @param {string} rulename - name of the rule to be removed\n * @memberof module:MediaPlayer\n * @instance\n */\n function removeABRCustomRule(rulename) {\n mediaPlayerModel.removeABRCustomRule(rulename);\n }\n\n /**\n * Remove all custom rules\n * @memberof module:MediaPlayer\n * @instance\n */\n function removeAllABRCustomRule() {\n mediaPlayerModel.removeABRCustomRule();\n }\n\n /**\n * Allows you to set a scheme and server source for UTC live edge detection for dynamic streams.\n * If UTCTiming is defined in the manifest, it will take precedence over any time source manually added.
\n * If you have exposed the Date header, use the method {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}.\n * This will allow the date header on the manifest to be used instead of a time server
\n * @param {string} schemeIdUri - \n * urn:mpeg:dash:utc:http-head:2014 \n * urn:mpeg:dash:utc:http-xsdate:2014 \n * urn:mpeg:dash:utc:http-iso:2014 \n * urn:mpeg:dash:utc:direct:2014 \n * \n * Some specs referencing early ISO23009-1 drafts incorrectly use\n * 2012 in the URI, rather than 2014. support these for now.
\n * \n * urn:mpeg:dash:utc:http-head:2012 \n * urn:mpeg:dash:utc:http-xsdate:2012 \n * urn:mpeg:dash:utc:http-iso:2012 \n * urn:mpeg:dash:utc:direct:2012 \n * \n * @param {string} value - Path to a time source.\n * @default\n * \n * schemeIdUri:urn:mpeg:dash:utc:http-xsdate:2014 \n * value:http://time.akamai.com/?iso&ms/li>\n * \n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#removeUTCTimingSource removeUTCTimingSource()}\n * @instance\n */\n function addUTCTimingSource(schemeIdUri, value) {\n mediaPlayerModel.addUTCTimingSource(schemeIdUri, value);\n }\n\n /**\n * Allows you to remove a UTC time source. Both schemeIdUri and value need to match the Dash.vo.UTCTiming properties in order for the\n * entry to be removed from the array
\n * @param {string} schemeIdUri - see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n * @param {string} value - see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with invalid arguments, schemeIdUri and value are not string type.\n * @instance\n */\n function removeUTCTimingSource(schemeIdUri, value) {\n mediaPlayerModel.removeUTCTimingSource(schemeIdUri, value);\n }\n\n /**\n * Allows you to clear the stored array of time sources.
\n * Example use: If you have exposed the Date header, calling this method\n * will allow the date header on the manifest to be used instead of the time server.
\n * Example use: Calling this method, assuming there is not an exposed date header on the manifest, will default back\n * to using a binary search to discover the live edge
\n *\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#restoreDefaultUTCTimingSources restoreDefaultUTCTimingSources()}\n * @instance\n */\n function clearDefaultUTCTimingSources() {\n mediaPlayerModel.clearDefaultUTCTimingSources();\n }\n\n /**\n * Allows you to restore the default time sources after calling {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}
\n *\n * @default\n * \n * schemeIdUri:urn:mpeg:dash:utc:http-xsdate:2014 \n * value:http://time.akamai.com/?iso&ms \n * \n *\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n * @instance\n */\n function restoreDefaultUTCTimingSources() {\n mediaPlayerModel.restoreDefaultUTCTimingSources();\n }\n\n /**\n * Returns the average throughput computed in the ABR logic\n *\n * @param {MediaType} type\n * @return {number} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function getAverageThroughput(type) {\n const throughputHistory = abrController.getThroughputHistory();\n return throughputHistory ? throughputHistory.getAverageThroughput(type) : 0;\n }\n\n /**\n * Sets whether withCredentials on XHR requests for a particular request\n * type is true or false\n *\n * @default false\n * @param {string} type - one of HTTPRequest.*_TYPE\n * @param {boolean} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function setXHRWithCredentialsForType(type, value) {\n mediaPlayerModel.setXHRWithCredentialsForType(type, value);\n }\n\n /**\n * Gets whether withCredentials on XHR requests for a particular request\n * type is true or false\n *\n * @param {string} type - one of HTTPRequest.*_TYPE\n * @return {boolean}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getXHRWithCredentialsForType(type) {\n return mediaPlayerModel.getXHRWithCredentialsForType(type);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n OFFLINE\n\n ---------------------------------------------------------------------------\n */\n\n /**\n * Detects if Offline is included and returns an instance of OfflineController.js\n * @memberof module:MediaPlayer\n * @instance\n */\n function getOfflineController() {\n return detectOffline();\n }\n\n /*\n ---------------------------------------------------------------------------\n\n METRICS\n\n ---------------------------------------------------------------------------\n */\n /**\n * Returns the DashMetrics.js Module. You use this Module to get access to all the public metrics\n * stored in dash.js\n *\n * @see {@link module:DashMetrics}\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDashMetrics() {\n return dashMetrics;\n }\n\n /*\n ---------------------------------------------------------------------------\n\n TEXT MANAGEMENT\n\n ---------------------------------------------------------------------------\n */\n /**\n * Set default language for text. If default language is not one of text tracks, dash will choose the first one.\n *\n * @param {string} lang - default language\n * @memberof module:MediaPlayer\n * @instance\n * @deprecated will be removed in version 3.2.0. Please use setInitialMediaSettingsFor(\"fragmentedText\", { lang: lang }) instead\n */\n function setTextDefaultLanguage(lang) {\n logger.warn('setTextDefaultLanguage is deprecated and will be removed in version 3.2.0. Please use setInitialMediaSettingsFor(\"fragmentedText\", { lang: lang }) instead');\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n textController.setTextDefaultLanguage(lang);\n }\n\n /**\n * Get default language for text.\n *\n * @return {string} the default language if it has been set using setTextDefaultLanguage\n * @memberof module:MediaPlayer\n * @instance\n * @deprecated will be removed in version 3.2.0. Please use getInitialMediaSettingsFor(\"fragmentedText\").lang instead\n */\n function getTextDefaultLanguage() {\n logger.warn('getTextDefaultLanguage is deprecated and will be removed in version 3.2.0. Please use getInitialMediaSettingsFor(\"fragmentedText\").lang instead');\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n return textController.getTextDefaultLanguage();\n }\n\n /**\n * Set enabled default state.\n * This is used to enable/disable text when a file is loaded.\n * During playback, use enableText to enable text for the file\n *\n * @param {boolean} enable - true to enable text, false otherwise\n * @memberof module:MediaPlayer\n * @instance\n */\n function setTextDefaultEnabled(enable) {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.setTextDefaultEnabled(enable);\n }\n\n /**\n * Get enabled default state.\n *\n * @return {boolean} default enable state\n * @memberof module:MediaPlayer\n * @instance\n */\n function getTextDefaultEnabled() {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n return textController.getTextDefaultEnabled();\n }\n\n /**\n * Enable/disable text\n * When enabling text, dash will choose the previous selected text track\n *\n * @param {boolean} enable - true to enable text, false otherwise (same as setTextTrack(-1))\n * @memberof module:MediaPlayer\n * @instance\n */\n function enableText(enable) {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.enableText(enable);\n }\n\n /**\n * Enable/disable text\n * When enabling dash will keep downloading and process fragmented text tracks even if all tracks are in mode \"hidden\"\n *\n * @param {boolean} enable - true to enable text streaming even if all text tracks are hidden.\n * @memberof module:MediaPlayer\n * @instance\n */\n function enableForcedTextStreaming(enable) {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.enableForcedTextStreaming(enable);\n }\n\n /**\n * Return if text is enabled\n *\n * @return {boolean} return true if text is enabled, false otherwise\n * @memberof module:MediaPlayer\n * @instance\n */\n function isTextEnabled() {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n return textController.isTextEnabled();\n }\n\n /**\n * Use this method to change the current text track for both external time text files and fragmented text tracks. There is no need to\n * set the track mode on the video object to switch a track when using this method.\n * @param {number} idx - Index of track based on the order of the order the tracks are added Use -1 to disable all tracks. (turn captions off). Use module:MediaPlayer#dashjs.MediaPlayer.events.TEXT_TRACK_ADDED.\n * @see {@link MediaPlayerEvents#event:TEXT_TRACK_ADDED dashjs.MediaPlayer.events.TEXT_TRACK_ADDED}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function setTextTrack(idx) {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.setTextTrack(idx);\n }\n\n function getCurrentTextTrackIndex() {\n let idx = NaN;\n if (textController) {\n idx = textController.getCurrentTrackIdx();\n }\n return idx;\n }\n\n /**\n * This method serves to control captions z-index value. If 'true' is passed, the captions will have the highest z-index and be\n * displayed on top of other html elements. Default value is 'false' (z-index is not set).\n * @param {boolean} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function displayCaptionsOnTop(value) {\n let textTracks = TextTracks(context).getInstance();\n textTracks.setConfig({\n videoModel: videoModel\n });\n textTracks.initialize();\n textTracks.setDisplayCConTop(value);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n VIDEO ELEMENT MANAGEMENT\n\n ---------------------------------------------------------------------------\n */\n\n /**\n * Returns instance of Video Element that was attached by calling attachView()\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~ELEMENT_NOT_ATTACHED_ERROR ELEMENT_NOT_ATTACHED_ERROR} if called before attachView function\n * @instance\n */\n function getVideoElement() {\n if (!videoModel.getElement()) {\n throw ELEMENT_NOT_ATTACHED_ERROR;\n }\n return videoModel.getElement();\n }\n\n /**\n * Use this method to attach an HTML5 VideoElement for dash.js to operate upon.\n *\n * @param {Object} element - An HTMLMediaElement that has already been defined in the DOM (or equivalent stub).\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n * @instance\n */\n function attachView(element) {\n if (!mediaPlayerInitialized) {\n throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;\n }\n\n videoModel.setElement(element);\n\n if (element) {\n detectProtection();\n detectMetricsReporting();\n detectMss();\n\n if (streamController) {\n streamController.switchToVideoElement();\n }\n }\n\n if (playbackInitialized) { //Reset if we have been playing before, so this is a new element.\n resetPlaybackControllers();\n }\n\n initializePlayback();\n }\n\n /**\n * Returns instance of Div that was attached by calling attachTTMLRenderingDiv()\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getTTMLRenderingDiv() {\n return videoModel ? videoModel.getTTMLRenderingDiv() : null;\n }\n\n /**\n * Use this method to attach an HTML5 div for dash.js to render rich TTML subtitles.\n *\n * @param {HTMLDivElement} div - An unstyled div placed after the video element. It will be styled to match the video size and overlay z-order.\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~ELEMENT_NOT_ATTACHED_ERROR ELEMENT_NOT_ATTACHED_ERROR} if called before attachView function\n * @instance\n */\n function attachTTMLRenderingDiv(div) {\n if (!videoModel.getElement()) {\n throw ELEMENT_NOT_ATTACHED_ERROR;\n }\n videoModel.setTTMLRenderingDiv(div);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n STREAM AND TRACK MANAGEMENT\n\n ---------------------------------------------------------------------------\n */\n /**\n * @param {MediaType} type\n * @returns {Array}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getBitrateInfoListFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let stream = getActiveStream();\n return stream ? stream.getBitrateListFor(type) : [];\n }\n\n /**\n * This method returns the list of all available streams from a given manifest\n * @param {Object} manifest\n * @returns {Array} list of {@link StreamInfo}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getStreamsFromManifest(manifest) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n return adapter.getStreamsInfo(manifest);\n }\n\n /**\n * This method returns the list of all available tracks for a given media type\n * @param {MediaType} type\n * @returns {Array} list of {@link MediaInfo}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getTracksFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let streamInfo = streamController.getActiveStreamInfo();\n return mediaController.getTracksFor(type, streamInfo);\n }\n\n /**\n * This method returns the list of all available tracks for a given media type and streamInfo from a given manifest\n * @param {MediaType} type\n * @param {Object} manifest\n * @param {Object} streamInfo\n * @returns {Array} list of {@link MediaInfo}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getTracksForTypeFromManifest(type, manifest, streamInfo) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n\n streamInfo = streamInfo || adapter.getStreamsInfo(manifest, 1)[0];\n\n return streamInfo ? adapter.getAllMediaInfoForType(streamInfo, type, manifest) : [];\n }\n\n /**\n * @param {MediaType} type\n * @returns {Object|null} {@link MediaInfo}\n *\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getCurrentTrackFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let streamInfo = streamController.getActiveStreamInfo();\n return mediaController.getCurrentTrackFor(type, streamInfo);\n }\n\n /**\n * This method allows to set media settings that will be used to pick the initial track. Format of the settings\n * is following: \n * If you set override to true any public method or property in your custom object will\n * override the dash.js parent object's property(ies) and will be used instead but the\n * dash.js parent module will still be created. \n *\n * If you set override to false your object will completely replace the dash.js object.\n * (Note: This is how it was in 1.x of Dash.js with Dijon). \n * \n * When you extend you get access to this.context, this.factory and this.parent to operate with in your custom object. \n * \n * this.context - can be used to pass context for singleton access.this.factory - can be used to call factory.getSingletonInstance().this.parent - is the reference of the parent object to call other public methods. (this.parent is excluded if you extend with override set to false or option 2) \n * You must call extend before you call initialize \n * @see {@link module:MediaPlayer#initialize initialize()}\n * @param {string} parentNameString - name of parent module\n * @param {Object} childInstance - overriding object\n * @param {boolean} override - replace only some methods (true) or the whole object (false)\n * @memberof module:MediaPlayer\n * @instance\n */\n function extend(parentNameString, childInstance, override) {\n FactoryMaker.extend(parentNameString, childInstance, override, context);\n }\n\n /**\n * This method returns the active stream\n *\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function getActiveStream() {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let streamInfo = streamController.getActiveStreamInfo();\n return streamInfo ? streamController.getStreamById(streamInfo.id) : null;\n }\n\n //***********************************\n // PRIVATE METHODS\n //***********************************\n\n function resetPlaybackControllers() {\n playbackInitialized = false;\n streamingInitialized = false;\n adapter.reset();\n streamController.reset();\n gapController.reset();\n playbackController.reset();\n abrController.reset();\n mediaController.reset();\n textController.reset();\n if (protectionController) {\n if (settings.get().streaming.keepProtectionMediaKeys) {\n protectionController.stop();\n } else {\n protectionController.reset();\n protectionController = null;\n detectProtection();\n }\n }\n cmcdModel.reset();\n }\n\n function createPlaybackControllers() {\n // creates or get objects instances\n const manifestLoader = createManifestLoader();\n\n if (!streamController) {\n streamController = StreamController(context).getInstance();\n }\n\n streamController.setConfig({\n capabilities: capabilities,\n manifestLoader: manifestLoader,\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n protectionController: protectionController,\n adapter: adapter,\n dashMetrics: dashMetrics,\n errHandler: errHandler,\n timelineConverter: timelineConverter,\n videoModel: videoModel,\n playbackController: playbackController,\n abrController: abrController,\n mediaController: mediaController,\n textController: textController,\n settings: settings,\n baseURLController: baseURLController\n });\n\n gapController.setConfig({\n settings,\n playbackController,\n streamController,\n videoModel,\n timelineConverter,\n adapter\n });\n\n playbackController.setConfig({\n streamController: streamController,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n adapter: adapter,\n videoModel: videoModel,\n timelineConverter: timelineConverter,\n uriFragmentModel: uriFragmentModel,\n settings: settings\n });\n\n abrController.setConfig({\n streamController: streamController,\n domStorage: domStorage,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n adapter: adapter,\n videoModel: videoModel,\n settings: settings\n });\n\n textController.setConfig({\n errHandler: errHandler,\n manifestModel: manifestModel,\n adapter: adapter,\n mediaController: mediaController,\n streamController: streamController,\n videoModel: videoModel\n });\n\n cmcdModel.setConfig({\n abrController,\n dashMetrics,\n playbackController\n });\n\n // initialises controller\n streamController.initialize(autoPlay, protectionData);\n gapController.initialize();\n cmcdModel.initialize();\n }\n\n function createManifestLoader() {\n return ManifestLoader(context).create({\n debug: debug,\n errHandler: errHandler,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n requestModifier: RequestModifier(context).getInstance(),\n mssHandler: mssHandler,\n settings: settings\n });\n }\n\n function detectProtection() {\n if (protectionController) {\n return protectionController;\n }\n // do not require Protection as dependencies as this is optional and intended to be loaded separately\n let Protection = dashjs.Protection; /* jshint ignore:line */\n if (typeof Protection === 'function') { //TODO need a better way to register/detect plugin components\n let protection = Protection(context).create();\n Events.extend(Protection.events);\n MediaPlayerEvents.extend(Protection.events, {\n publicOnly: true\n });\n Errors.extend(Protection.errors);\n if (!capabilities) {\n capabilities = Capabilities(context).getInstance();\n }\n protectionController = protection.createProtectionSystem({\n debug: debug,\n errHandler: errHandler,\n videoModel: videoModel,\n capabilities: capabilities,\n eventBus: eventBus,\n events: Events,\n BASE64: BASE64,\n constants: Constants\n });\n return protectionController;\n }\n\n return null;\n }\n\n function detectMetricsReporting() {\n if (metricsReportingController) {\n return;\n }\n // do not require MetricsReporting as dependencies as this is optional and intended to be loaded separately\n let MetricsReporting = dashjs.MetricsReporting; /* jshint ignore:line */\n if (typeof MetricsReporting === 'function') { //TODO need a better way to register/detect plugin components\n let metricsReporting = MetricsReporting(context).create();\n\n metricsReportingController = metricsReporting.createMetricsReporting({\n debug: debug,\n eventBus: eventBus,\n mediaElement: getVideoElement(),\n adapter: adapter,\n dashMetrics: dashMetrics,\n events: Events,\n constants: Constants,\n metricsConstants: MetricsConstants\n });\n }\n }\n\n function detectMss() {\n if (mssHandler) {\n return;\n }\n // do not require MssHandler as dependencies as this is optional and intended to be loaded separately\n let MssHandler = dashjs.MssHandler; /* jshint ignore:line */\n if (typeof MssHandler === 'function') { //TODO need a better way to register/detect plugin components\n Errors.extend(MssHandler.errors);\n mssHandler = MssHandler(context).create({\n eventBus: eventBus,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n manifestModel: manifestModel,\n playbackController: playbackController,\n streamController: streamController,\n protectionController: protectionController,\n baseURLController: baseURLController,\n errHandler: errHandler,\n events: Events,\n constants: Constants,\n debug: debug,\n initSegmentType: HTTPRequest.INIT_SEGMENT_TYPE,\n BASE64: BASE64,\n ISOBoxer: ISOBoxer,\n settings: settings\n });\n }\n }\n\n function detectOffline() {\n if (!mediaPlayerInitialized) {\n throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;\n }\n\n if (offlineController) {\n return offlineController;\n }\n\n // do not require Offline as dependencies as this is optional and intended to be loaded separately\n let OfflineController = dashjs.OfflineController; /* jshint ignore:line */\n\n if (typeof OfflineController === 'function') { //TODO need a better way to register/detect plugin components\n Events.extend(OfflineController.events);\n MediaPlayerEvents.extend(OfflineController.events, {\n publicOnly: true\n });\n Errors.extend(OfflineController.errors);\n\n const manifestLoader = createManifestLoader();\n const manifestUpdater = ManifestUpdater(context).create();\n\n manifestUpdater.setConfig({\n manifestModel: manifestModel,\n adapter: adapter,\n manifestLoader: manifestLoader,\n errHandler: errHandler\n });\n\n offlineController = OfflineController(context).create({\n debug: debug,\n manifestUpdater: manifestUpdater,\n baseURLController: baseURLController,\n manifestLoader: manifestLoader,\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n abrController: abrController,\n playbackController: playbackController,\n adapter: adapter,\n errHandler: errHandler,\n dashMetrics: dashMetrics,\n timelineConverter: timelineConverter,\n schemeLoaderFactory: schemeLoaderFactory,\n eventBus: eventBus,\n events: Events,\n errors: Errors,\n constants: Constants,\n settings: settings,\n dashConstants: DashConstants,\n urlUtils: URLUtils(context).getInstance()\n });\n return offlineController;\n }\n\n return null;\n }\n\n function getAsUTC(valToConvert) {\n let metric = dashMetrics.getCurrentDVRInfo();\n let availableFrom,\n utcValue;\n\n if (!metric) {\n return 0;\n }\n availableFrom = metric.manifestInfo.availableFrom.getTime() / 1000;\n utcValue = valToConvert + (availableFrom + metric.range.start);\n return utcValue;\n }\n\n function initializePlayback() {\n\n if (offlineController) {\n offlineController.resetRecords();\n }\n\n if (!streamingInitialized && source) {\n streamingInitialized = true;\n logger.info('Streaming Initialized');\n createPlaybackControllers();\n\n if (typeof source === 'string') {\n streamController.load(source);\n } else {\n streamController.loadWithManifest(source);\n }\n }\n\n if (!playbackInitialized && isReady()) {\n playbackInitialized = true;\n logger.info('Playback Initialized');\n }\n }\n\n /**\n * Returns the DashAdapter.js Module.\n *\n * @see {@link module:DashAdapter}\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDashAdapter() {\n return adapter;\n }\n\n instance = {\n initialize: initialize,\n setConfig: setConfig,\n on: on,\n off: off,\n extend: extend,\n attachView: attachView,\n attachSource: attachSource,\n isReady: isReady,\n preload: preload,\n play: play,\n isPaused: isPaused,\n pause: pause,\n isSeeking: isSeeking,\n isDynamic: isDynamic,\n seek: seek,\n setPlaybackRate: setPlaybackRate,\n getPlaybackRate: getPlaybackRate,\n setMute: setMute,\n isMuted: isMuted,\n setVolume: setVolume,\n getVolume: getVolume,\n time: time,\n duration: duration,\n timeAsUTC: timeAsUTC,\n durationAsUTC: durationAsUTC,\n getActiveStream: getActiveStream,\n getDVRWindowSize: getDVRWindowSize,\n getDVRSeekOffset: getDVRSeekOffset,\n convertToTimeCode: convertToTimeCode,\n formatUTC: formatUTC,\n getVersion: getVersion,\n getDebug: getDebug,\n getBufferLength: getBufferLength,\n getTTMLRenderingDiv: getTTMLRenderingDiv,\n getVideoElement: getVideoElement,\n getSource: getSource,\n getCurrentLiveLatency: getCurrentLiveLatency,\n getTopBitrateInfoFor: getTopBitrateInfoFor,\n setAutoPlay: setAutoPlay,\n getAutoPlay: getAutoPlay,\n getDashMetrics: getDashMetrics,\n getQualityFor: getQualityFor,\n setQualityFor: setQualityFor,\n updatePortalSize: updatePortalSize,\n setTextDefaultLanguage: setTextDefaultLanguage,\n getTextDefaultLanguage: getTextDefaultLanguage,\n setTextDefaultEnabled: setTextDefaultEnabled,\n getTextDefaultEnabled: getTextDefaultEnabled,\n enableText: enableText,\n enableForcedTextStreaming: enableForcedTextStreaming,\n isTextEnabled: isTextEnabled,\n setTextTrack: setTextTrack,\n getBitrateInfoListFor: getBitrateInfoListFor,\n getStreamsFromManifest: getStreamsFromManifest,\n getTracksFor: getTracksFor,\n getTracksForTypeFromManifest: getTracksForTypeFromManifest,\n getCurrentTrackFor: getCurrentTrackFor,\n setInitialMediaSettingsFor: setInitialMediaSettingsFor,\n getInitialMediaSettingsFor: getInitialMediaSettingsFor,\n setCurrentTrack: setCurrentTrack,\n getTrackSwitchModeFor: getTrackSwitchModeFor,\n setTrackSwitchModeFor: setTrackSwitchModeFor,\n setSelectionModeForInitialTrack: setSelectionModeForInitialTrack,\n getSelectionModeForInitialTrack: getSelectionModeForInitialTrack,\n addABRCustomRule: addABRCustomRule,\n removeABRCustomRule: removeABRCustomRule,\n removeAllABRCustomRule: removeAllABRCustomRule,\n getAverageThroughput: getAverageThroughput,\n retrieveManifest: retrieveManifest,\n addUTCTimingSource: addUTCTimingSource,\n removeUTCTimingSource: removeUTCTimingSource,\n clearDefaultUTCTimingSources: clearDefaultUTCTimingSources,\n restoreDefaultUTCTimingSources: restoreDefaultUTCTimingSources,\n setXHRWithCredentialsForType: setXHRWithCredentialsForType,\n getXHRWithCredentialsForType: getXHRWithCredentialsForType,\n getProtectionController: getProtectionController,\n attachProtectionController: attachProtectionController,\n setProtectionData: setProtectionData,\n displayCaptionsOnTop: displayCaptionsOnTop,\n attachTTMLRenderingDiv: attachTTMLRenderingDiv,\n getCurrentTextTrackIndex: getCurrentTextTrackIndex,\n provideThumbnail: provideThumbnail,\n getDashAdapter: getDashAdapter,\n getOfflineController: getOfflineController,\n getSettings: getSettings,\n updateSettings: updateSettings,\n resetSettings: resetSettings,\n reset: reset,\n destroy: destroy\n };\n\n setup();\n\n return instance;\n}\n\nMediaPlayer.__dashjs_factory_name = 'MediaPlayer';\nconst factory = FactoryMaker.getClassFactory(MediaPlayer);\nfactory.events = MediaPlayerEvents;\nfactory.errors = Errors;\nFactoryMaker.updateClassFactory(MediaPlayer.__dashjs_factory_name, factory);\n\nexport default factory;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventsBase from '../core/events/EventsBase';\n\n/**\n * @class\n * @implements EventsBase\n */\nclass MediaPlayerEvents extends EventsBase {\n\n /**\n * @description Public facing external events to be used when developing a player that implements dash.js.\n */\n constructor() {\n super();\n /**\n * Triggered when playback will not start yet\n * as the MPD's availabilityStartTime is in the future.\n * Check delay property in payload to determine time before playback will start.\n * @event MediaPlayerEvents#AST_IN_FUTURE\n */\n this.AST_IN_FUTURE = 'astInFuture';\n\n /**\n * Triggered when the video element's buffer state changes to stalled.\n * Check mediaType in payload to determine type (Video, Audio, FragmentedText).\n * @event MediaPlayerEvents#BUFFER_EMPTY\n */\n this.BUFFER_EMPTY = 'bufferStalled';\n\n /**\n * Triggered when the video element's buffer state changes to loaded.\n * Check mediaType in payload to determine type (Video, Audio, FragmentedText).\n * @event MediaPlayerEvents#BUFFER_LOADED\n */\n this.BUFFER_LOADED = 'bufferLoaded';\n\n /**\n * Triggered when the video element's buffer state changes, either stalled or loaded. Check payload for state.\n * @event MediaPlayerEvents#BUFFER_LEVEL_STATE_CHANGED\n */\n this.BUFFER_LEVEL_STATE_CHANGED = 'bufferStateChanged';\n\n /**\n * Triggered when a dynamic stream changed to static (transition phase between Live and On-Demand).\n * @event MediaPlayerEvents#DYNAMIC_TO_STATIC\n */\n this.DYNAMIC_TO_STATIC = 'dynamicToStatic';\n\n /**\n * Triggered when there is an error from the element or MSE source buffer.\n * @event MediaPlayerEvents#ERROR\n */\n this.ERROR = 'error';\n /**\n * Triggered when a fragment download has completed.\n * @event MediaPlayerEvents#FRAGMENT_LOADING_COMPLETED\n */\n this.FRAGMENT_LOADING_COMPLETED = 'fragmentLoadingCompleted';\n\n /**\n * Triggered when a partial fragment download has completed.\n * @event MediaPlayerEvents#FRAGMENT_LOADING_PROGRESS\n */\n this.FRAGMENT_LOADING_PROGRESS = 'fragmentLoadingProgress';\n /**\n * Triggered when a fragment download has started.\n * @event MediaPlayerEvents#FRAGMENT_LOADING_STARTED\n */\n this.FRAGMENT_LOADING_STARTED = 'fragmentLoadingStarted';\n\n /**\n * Triggered when a fragment download is abandoned due to detection of slow download base on the ABR abandon rule..\n * @event MediaPlayerEvents#FRAGMENT_LOADING_ABANDONED\n */\n this.FRAGMENT_LOADING_ABANDONED = 'fragmentLoadingAbandoned';\n\n /**\n * Triggered when {@link module:Debug} logger methods are called.\n * @event MediaPlayerEvents#LOG\n */\n this.LOG = 'log';\n\n //TODO refactor with internal event\n /**\n * Triggered when the manifest load is complete\n * @event MediaPlayerEvents#MANIFEST_LOADED\n */\n this.MANIFEST_LOADED = 'manifestLoaded';\n\n /**\n * Triggered anytime there is a change to the overall metrics.\n * @event MediaPlayerEvents#METRICS_CHANGED\n */\n this.METRICS_CHANGED = 'metricsChanged';\n\n /**\n * Triggered when an individual metric is added, updated or cleared.\n * @event MediaPlayerEvents#METRIC_CHANGED\n */\n this.METRIC_CHANGED = 'metricChanged';\n\n /**\n * Triggered every time a new metric is added.\n * @event MediaPlayerEvents#METRIC_ADDED\n */\n this.METRIC_ADDED = 'metricAdded';\n\n /**\n * Triggered every time a metric is updated.\n * @event MediaPlayerEvents#METRIC_UPDATED\n */\n this.METRIC_UPDATED = 'metricUpdated';\n\n /**\n * Triggered at the stream end of a period.\n * @event MediaPlayerEvents#PERIOD_SWITCH_COMPLETED\n */\n this.PERIOD_SWITCH_COMPLETED = 'periodSwitchCompleted';\n\n /**\n * Triggered when a new period starts.\n * @event MediaPlayerEvents#PERIOD_SWITCH_STARTED\n */\n this.PERIOD_SWITCH_STARTED = 'periodSwitchStarted';\n\n /**\n * Triggered when an ABR up /down switch is initiated; either by user in manual mode or auto mode via ABR rules.\n * @event MediaPlayerEvents#QUALITY_CHANGE_REQUESTED\n */\n this.QUALITY_CHANGE_REQUESTED = 'qualityChangeRequested';\n\n /**\n * Triggered when the new ABR quality is being rendered on-screen.\n * @event MediaPlayerEvents#QUALITY_CHANGE_RENDERED\n */\n this.QUALITY_CHANGE_RENDERED = 'qualityChangeRendered';\n\n /**\n * Triggered when the new track is being rendered.\n * @event MediaPlayerEvents#TRACK_CHANGE_RENDERED\n */\n this.TRACK_CHANGE_RENDERED = 'trackChangeRendered';\n\n /**\n * Triggered when the source is setup and ready.\n * @event MediaPlayerEvents#SOURCE_INITIALIZED\n */\n this.SOURCE_INITIALIZED = 'sourceInitialized';\n\n /**\n * Triggered when a stream (period) is being loaded\n * @event MediaPlayerEvents#STREAM_INITIALIZING\n */\n this.STREAM_INITIALIZING = 'streamInitializing';\n\n /**\n * Triggered when a stream (period) is loaded\n * @event MediaPlayerEvents#STREAM_UPDATED\n */\n this.STREAM_UPDATED = 'streamUpdated';\n\n /**\n * Triggered when a stream (period) is updated\n * @event MediaPlayerEvents#STREAM_INITIALIZED\n */\n this.STREAM_INITIALIZED = 'streamInitialized';\n\n /**\n * Triggered when the player has been reset.\n * @event MediaPlayerEvents#STREAM_TEARDOWN_COMPLETE\n */\n this.STREAM_TEARDOWN_COMPLETE = 'streamTeardownComplete';\n\n /**\n * Triggered once all text tracks detected in the MPD are added to the video element.\n * @event MediaPlayerEvents#TEXT_TRACKS_ADDED\n */\n this.TEXT_TRACKS_ADDED = 'allTextTracksAdded';\n\n /**\n * Triggered when a text track is added to the video element's TextTrackList\n * @event MediaPlayerEvents#TEXT_TRACK_ADDED\n */\n this.TEXT_TRACK_ADDED = 'textTrackAdded';\n\n /**\n * Triggered when a ttml chunk is parsed.\n * @event MediaPlayerEvents#TTML_PARSED\n */\n this.TTML_PARSED = 'ttmlParsed';\n\n /**\n * Triggered when a ttml chunk has to be parsed.\n * @event MediaPlayerEvents#TTML_TO_PARSE\n */\n this.TTML_TO_PARSE = 'ttmlToParse';\n\n /**\n * Triggered when a caption is rendered.\n * @event MediaPlayerEvents#CAPTION_RENDERED\n */\n this.CAPTION_RENDERED = 'captionRendered';\n\n /**\n * Triggered when the caption container is resized.\n * @event MediaPlayerEvents#CAPTION_CONTAINER_RESIZE\n */\n this.CAPTION_CONTAINER_RESIZE = 'captionContainerResize';\n\n /**\n * Sent when enough data is available that the media can be played,\n * at least for a couple of frames. This corresponds to the\n * HAVE_ENOUGH_DATA readyState.\n * @event MediaPlayerEvents#CAN_PLAY\n */\n this.CAN_PLAY = 'canPlay';\n\n /**\n * Sent when playback completes.\n * @event MediaPlayerEvents#PLAYBACK_ENDED\n */\n this.PLAYBACK_ENDED = 'playbackEnded';\n\n /**\n * Sent when an error occurs. The element's error\n * attribute contains more information.\n * @event MediaPlayerEvents#PLAYBACK_ERROR\n */\n this.PLAYBACK_ERROR = 'playbackError';\n\n /**\n * Sent when playback is not allowed (for example if user gesture is needed).\n * @event MediaPlayerEvents#PLAYBACK_NOT_ALLOWED\n */\n this.PLAYBACK_NOT_ALLOWED = 'playbackNotAllowed';\n\n /**\n * The media's metadata has finished loading; all attributes now\n * contain as much useful information as they're going to.\n * @event MediaPlayerEvents#PLAYBACK_METADATA_LOADED\n */\n this.PLAYBACK_METADATA_LOADED = 'playbackMetaDataLoaded';\n\n /**\n * Sent when playback is paused.\n * @event MediaPlayerEvents#PLAYBACK_PAUSED\n */\n this.PLAYBACK_PAUSED = 'playbackPaused';\n\n /**\n * Sent when the media begins to play (either for the first time, after having been paused,\n * or after ending and then restarting).\n *\n * @event MediaPlayerEvents#PLAYBACK_PLAYING\n */\n this.PLAYBACK_PLAYING = 'playbackPlaying';\n\n /**\n * Sent periodically to inform interested parties of progress downloading\n * the media. Information about the current amount of the media that has\n * been downloaded is available in the media element's buffered attribute.\n * @event MediaPlayerEvents#PLAYBACK_PROGRESS\n */\n this.PLAYBACK_PROGRESS = 'playbackProgress';\n\n /**\n * Sent when the playback speed changes.\n * @event MediaPlayerEvents#PLAYBACK_RATE_CHANGED\n */\n this.PLAYBACK_RATE_CHANGED = 'playbackRateChanged';\n\n /**\n * Sent when a seek operation completes.\n * @event MediaPlayerEvents#PLAYBACK_SEEKED\n */\n this.PLAYBACK_SEEKED = 'playbackSeeked';\n\n /**\n * Sent when a seek operation begins.\n * @event MediaPlayerEvents#PLAYBACK_SEEKING\n */\n this.PLAYBACK_SEEKING = 'playbackSeeking';\n\n /**\n * Sent when a seek operation has been asked.\n * @event MediaPlayerEvents#PLAYBACK_SEEK_ASKED\n */\n this.PLAYBACK_SEEK_ASKED = 'playbackSeekAsked';\n\n /**\n * Sent when the video element reports stalled\n * @event MediaPlayerEvents#PLAYBACK_STALLED\n */\n this.PLAYBACK_STALLED = 'playbackStalled';\n\n /**\n * Sent when playback of the media starts after having been paused;\n * that is, when playback is resumed after a prior pause event.\n *\n * @event MediaPlayerEvents#PLAYBACK_STARTED\n */\n this.PLAYBACK_STARTED = 'playbackStarted';\n\n /**\n * The time indicated by the element's currentTime attribute has changed.\n * @event MediaPlayerEvents#PLAYBACK_TIME_UPDATED\n */\n this.PLAYBACK_TIME_UPDATED = 'playbackTimeUpdated';\n\n /**\n * Sent when the media playback has stopped because of a temporary lack of data.\n *\n * @event MediaPlayerEvents#PLAYBACK_WAITING\n */\n this.PLAYBACK_WAITING = 'playbackWaiting';\n\n /**\n * Manifest validity changed - As a result of an MPD validity expiration event.\n * @event MediaPlayerEvents#MANIFEST_VALIDITY_CHANGED\n */\n this.MANIFEST_VALIDITY_CHANGED = 'manifestValidityChanged';\n\n /**\n * A gap occured in the timeline which requires a seek to the next period\n * @event MediaPlayerEvents#GAP_CAUSED_SEEK_TO_PERIOD_END\n */\n this.GAP_CAUSED_SEEK_TO_PERIOD_END = 'gapCausedSeekToPeriodEnd';\n\n /**\n * A gap occured in the timeline which requires an internal seek\n * @event MediaPlayerEvents#GAP_CAUSED_INTERNAL_SEEK\n */\n this.GAP_CAUSED_INTERNAL_SEEK = 'gapCausedInternalSeek';\n\n /**\n * Dash events are triggered at their respective start points on the timeline.\n * @event MediaPlayerEvents#EVENT_MODE_ON_START\n */\n this.EVENT_MODE_ON_START = 'eventModeOnStart';\n\n /**\n * Dash events are triggered as soon as they were parsed.\n * @event MediaPlayerEvents#EVENT_MODE_ON_RECEIVE\n */\n this.EVENT_MODE_ON_RECEIVE = 'eventModeOnReceive';\n }\n}\n\nlet mediaPlayerEvents = new MediaPlayerEvents();\nexport default mediaPlayerEvents;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport XlinkController from './controllers/XlinkController';\nimport URLLoader from './net/URLLoader';\nimport URLUtils from './utils/URLUtils';\nimport TextRequest from './vo/TextRequest';\nimport DashJSError from './vo/DashJSError';\nimport {HTTPRequest} from './vo/metrics/HTTPRequest';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport Errors from '../core/errors/Errors';\nimport FactoryMaker from '../core/FactoryMaker';\nimport DashParser from '../dash/parser/DashParser';\n\nfunction ManifestLoader(config) {\n\n config = config || {};\n const context = this.context;\n const debug = config.debug;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n logger,\n urlLoader,\n xlinkController,\n parser;\n\n let mssHandler = config.mssHandler;\n let errHandler = config.errHandler;\n\n function setup() {\n logger = debug.getLogger(instance);\n eventBus.on(Events.XLINK_READY, onXlinkReady, instance);\n\n urlLoader = URLLoader(context).create({\n errHandler: config.errHandler,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n useFetch: config.settings.get().streaming.lowLatencyEnabled,\n urlUtils: urlUtils,\n constants: Constants,\n dashConstants: DashConstants,\n errors: Errors\n });\n\n xlinkController = XlinkController(context).create({\n errHandler: errHandler,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n settings: config.settings\n });\n\n parser = null;\n }\n\n function onXlinkReady(event) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, { manifest: event.manifest });\n }\n\n function createParser(data) {\n let parser = null;\n // Analyze manifest content to detect protocol and select appropriate parser\n if (data.indexOf('SmoothStreamingMedia') > -1) {\n //do some business to transform it into a Dash Manifest\n if (mssHandler) {\n parser = mssHandler.createMssParser();\n mssHandler.registerEvents();\n }\n return parser;\n } else if (data.indexOf('MPD') > -1 || data.indexOf('Patch') > -1) {\n return DashParser(context).create({debug: debug});\n } else {\n return parser;\n }\n }\n\n function load(url) {\n\n const request = new TextRequest(url, HTTPRequest.MPD_TYPE);\n\n urlLoader.load({\n request: request,\n success: function (data, textStatus, responseURL) {\n // Manage situations in which success is called after calling reset\n if (!xlinkController) return;\n\n let actualUrl,\n baseUri,\n manifest;\n\n // Handle redirects for the MPD - as per RFC3986 Section 5.1.3\n // also handily resolves relative MPD URLs to absolute\n if (responseURL && responseURL !== url) {\n baseUri = urlUtils.parseBaseUrl(responseURL);\n actualUrl = responseURL;\n } else {\n // usually this case will be caught and resolved by\n // responseURL above but it is not available for IE11 and Edge/12 and Edge/13\n // baseUri must be absolute for BaseURL resolution later\n if (urlUtils.isRelative(url)) {\n url = urlUtils.resolve(url, window.location.href);\n }\n\n baseUri = urlUtils.parseBaseUrl(url);\n }\n\n // A response of no content implies in-memory is properly up to date\n if (textStatus == 'No Content') {\n eventBus.trigger(\n Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null\n }\n );\n return;\n }\n\n // Create parser according to manifest type\n if (parser === null) {\n parser = createParser(data);\n }\n\n if (parser === null) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + `${url}`\n )\n });\n return;\n }\n\n // init xlinkcontroller with matchers and iron object from created parser\n xlinkController.setMatchers(parser.getMatchers());\n xlinkController.setIron(parser.getIron());\n\n try {\n manifest = parser.parse(data);\n } catch (e) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + `${url}`\n )\n });\n return;\n }\n\n if (manifest) {\n manifest.url = actualUrl || url;\n\n // URL from which the MPD was originally retrieved (MPD updates will not change this value)\n if (!manifest.originalUrl) {\n manifest.originalUrl = manifest.url;\n }\n\n // In the following, we only use the first Location entry even if many are available\n // Compare with ManifestUpdater/DashManifestModel\n if (manifest.hasOwnProperty(Constants.LOCATION)) {\n baseUri = urlUtils.parseBaseUrl(manifest.Location_asArray[0]);\n logger.debug('BaseURI set by Location to: ' + baseUri);\n }\n\n manifest.baseUri = baseUri;\n manifest.loadedTime = new Date();\n xlinkController.resolveManifestOnLoad(manifest);\n\n eventBus.trigger(Events.ORIGINAL_MANIFEST_LOADED, { originalManifest: data });\n } else {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + `${url}`\n )\n });\n }\n },\n error: function (request, statusText, errorText) {\n eventBus.trigger(Events.INTERNAL_MANIFEST_LOADED, {\n manifest: null,\n error: new DashJSError(\n Errors.MANIFEST_LOADER_LOADING_FAILURE_ERROR_CODE,\n Errors.MANIFEST_LOADER_LOADING_FAILURE_ERROR_MESSAGE + `${url}, ${errorText}`\n )\n });\n }\n });\n }\n\n function reset() {\n eventBus.off(Events.XLINK_READY, onXlinkReady, instance);\n\n if (xlinkController) {\n xlinkController.reset();\n xlinkController = null;\n }\n\n if (urlLoader) {\n urlLoader.abort();\n urlLoader = null;\n }\n\n if (mssHandler) {\n mssHandler.reset();\n }\n }\n\n instance = {\n load: load,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nManifestLoader.__dashjs_factory_name = 'ManifestLoader';\n\nconst factory = FactoryMaker.getClassFactory(ManifestLoader);\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport FactoryMaker from '../core/FactoryMaker';\nimport Debug from '../core/Debug';\nimport Errors from '../core/errors/Errors';\nimport DashConstants from '../dash/constants/DashConstants';\nimport URLUtils from './utils/URLUtils';\n\nfunction ManifestUpdater() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n logger,\n refreshDelay,\n refreshTimer,\n isPaused,\n isStopped,\n isUpdating,\n manifestLoader,\n manifestModel,\n adapter,\n errHandler,\n settings;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.manifestModel) {\n manifestModel = config.manifestModel;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.manifestLoader) {\n manifestLoader = config.manifestLoader;\n }\n if (config.errHandler) {\n errHandler = config.errHandler;\n }\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n function initialize() {\n resetInitialSettings();\n\n eventBus.on(Events.STREAMS_COMPOSED, onStreamsComposed, this);\n eventBus.on(Events.PLAYBACK_STARTED, onPlaybackStarted, this);\n eventBus.on(Events.PLAYBACK_PAUSED, onPlaybackPaused, this);\n eventBus.on(Events.INTERNAL_MANIFEST_LOADED, onManifestLoaded, this);\n }\n\n function setManifest(manifest) {\n update(manifest);\n }\n\n function resetInitialSettings() {\n refreshDelay = NaN;\n isUpdating = false;\n isPaused = true;\n isStopped = false;\n stopManifestRefreshTimer();\n }\n\n function reset() {\n\n eventBus.off(Events.PLAYBACK_STARTED, onPlaybackStarted, this);\n eventBus.off(Events.PLAYBACK_PAUSED, onPlaybackPaused, this);\n eventBus.off(Events.STREAMS_COMPOSED, onStreamsComposed, this);\n eventBus.off(Events.INTERNAL_MANIFEST_LOADED, onManifestLoaded, this);\n\n resetInitialSettings();\n }\n\n function stopManifestRefreshTimer() {\n if (refreshTimer !== null) {\n clearTimeout(refreshTimer);\n refreshTimer = null;\n }\n }\n\n function startManifestRefreshTimer(delay) {\n stopManifestRefreshTimer();\n\n if (isStopped) {\n return;\n }\n\n if (isNaN(delay) && !isNaN(refreshDelay)) {\n delay = refreshDelay * 1000;\n }\n\n if (!isNaN(delay)) {\n logger.debug('Refresh manifest in ' + delay + ' milliseconds.');\n refreshTimer = setTimeout(onRefreshTimer, delay);\n }\n }\n\n function refreshManifest(ignorePatch = false) {\n isUpdating = true;\n const manifest = manifestModel.getValue();\n\n // default to the original url in the manifest\n let url = manifest.url;\n\n // Check for PatchLocation and Location alternatives\n const patchLocation = adapter.getPatchLocation(manifest);\n const location = adapter.getLocation(manifest);\n if (patchLocation && !ignorePatch) {\n url = patchLocation;\n } else if (location) {\n url = location;\n }\n\n // if one of the alternatives was relative, convert to absolute\n if (urlUtils.isRelative(url)) {\n url = urlUtils.resolve(url, manifest.url);\n }\n\n manifestLoader.load(url);\n }\n\n function update(manifest) {\n if (!manifest) {\n // successful update with no content implies existing manifest remains valid\n manifest = manifestModel.getValue();\n\n // override load time to avoid invalid latency tracking and ensure update cadence\n manifest.loadedTime = new Date();\n } else if (adapter.getIsPatch(manifest)) {\n // with patches the in-memory manifest is our base\n let patch = manifest;\n manifest = manifestModel.getValue();\n\n // check for patch validity\n let isPatchValid = adapter.isPatchValid(manifest, patch);\n let patchSuccessful = isPatchValid;\n\n if (isPatchValid) {\n // grab publish time before update\n let publishTime = adapter.getPublishTime(manifest);\n\n // apply validated patch to manifest\n patchSuccessful = adapter.applyPatchToManifest(manifest, patch);\n\n // get the updated publish time\n let updatedPublishTime = adapter.getPublishTime(manifest);\n\n // ensure the patch properly updated the in-memory publish time\n patchSuccessful = publishTime.getTime() != updatedPublishTime.getTime();\n }\n\n // if the patch failed to apply, force a full manifest refresh\n if (!patchSuccessful) {\n logger.debug('Patch provided is invalid, performing full manifest refresh');\n refreshManifest(true);\n return;\n }\n\n // override load time to avoid invalid latency tracking and ensure update cadence\n manifest.loadedTime = new Date();\n }\n\n // See DASH-IF IOP v4.3 section 4.6.4 \"Transition Phase between Live and On-Demand\"\n // Stop manifest update, ignore static manifest and signal end of dynamic stream to detect end of stream\n if (manifestModel.getValue() && manifestModel.getValue().type === DashConstants.DYNAMIC && manifest.type === DashConstants.STATIC) {\n eventBus.trigger(Events.DYNAMIC_TO_STATIC);\n isUpdating = false;\n isStopped = true;\n return;\n }\n\n manifestModel.setValue(manifest);\n\n const date = new Date();\n const latencyOfLastUpdate = (date.getTime() - manifest.loadedTime.getTime()) / 1000;\n refreshDelay = adapter.getManifestUpdatePeriod(manifest, latencyOfLastUpdate);\n // setTimeout uses a 32 bit number to store the delay. Any number greater than it\n // will cause event associated with setTimeout to trigger immediately\n if (refreshDelay * 1000 > 0x7FFFFFFF) {\n refreshDelay = 0x7FFFFFFF / 1000;\n }\n eventBus.trigger(Events.MANIFEST_UPDATED, { manifest: manifest });\n logger.info('Manifest has been refreshed at ' + date + '[' + date.getTime() / 1000 + '] ');\n\n if (!isPaused) {\n startManifestRefreshTimer();\n }\n }\n\n function onRefreshTimer() {\n if (isPaused) {\n return;\n }\n if (isUpdating) {\n startManifestRefreshTimer(settings.get().streaming.manifestUpdateRetryInterval);\n return;\n }\n refreshManifest();\n }\n\n function onManifestLoaded(e) {\n if (!e.error) {\n update(e.manifest);\n } else if (e.error.code === Errors.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE) {\n errHandler.error(e.error);\n }\n }\n\n function onPlaybackStarted (/*e*/) {\n isPaused = false;\n startManifestRefreshTimer();\n }\n\n function onPlaybackPaused(/*e*/) {\n isPaused = !settings.get().streaming.scheduleWhilePaused;\n\n if (isPaused) {\n stopManifestRefreshTimer();\n }\n }\n\n function onStreamsComposed(/*e*/) {\n // When streams are ready we can consider manifest update completed. Resolve the update promise.\n isUpdating = false;\n }\n\n instance = {\n initialize: initialize,\n setManifest: setManifest,\n refreshManifest: refreshManifest,\n setConfig: setConfig,\n reset: reset\n };\n\n setup();\n return instance;\n}\nManifestUpdater.__dashjs_factory_name = 'ManifestUpdater';\nexport default FactoryMaker.getClassFactory(ManifestUpdater);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport cea608parser from '../../externals/cea608-parser';\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport MetricsConstants from './constants/MetricsConstants';\nimport PlaybackController from './controllers/PlaybackController';\nimport StreamController from './controllers/StreamController';\nimport GapController from './controllers/GapController';\nimport MediaController from './controllers/MediaController';\nimport BaseURLController from './controllers/BaseURLController';\nimport ManifestLoader from './ManifestLoader';\nimport ErrorHandler from './utils/ErrorHandler';\nimport Capabilities from './utils/Capabilities';\nimport CapabilitiesFilter from './utils/CapabilitiesFilter';\nimport TextTracks from './text/TextTracks';\nimport RequestModifier from './utils/RequestModifier';\nimport TextController from './text/TextController';\nimport URIFragmentModel from './models/URIFragmentModel';\nimport ManifestModel from './models/ManifestModel';\nimport MediaPlayerModel from './models/MediaPlayerModel';\nimport AbrController from './controllers/AbrController';\nimport SchemeLoaderFactory from './net/SchemeLoaderFactory';\nimport VideoModel from './models/VideoModel';\nimport CmcdModel from './models/CmcdModel';\nimport DOMStorage from './utils/DOMStorage';\nimport Debug from './../core/Debug';\nimport Errors from './../core/errors/Errors';\nimport EventBus from './../core/EventBus';\nimport Events from './../core/events/Events';\nimport MediaPlayerEvents from './MediaPlayerEvents';\nimport FactoryMaker from '../core/FactoryMaker';\nimport Settings from '../core/Settings';\nimport {\n getVersionString\n}\n from './../core/Version';\n\n//Dash\nimport SegmentBaseController from '../dash/controllers/SegmentBaseController';\nimport DashAdapter from '../dash/DashAdapter';\nimport DashMetrics from '../dash/DashMetrics';\nimport TimelineConverter from '../dash/utils/TimelineConverter';\nimport {\n HTTPRequest\n} from './vo/metrics/HTTPRequest';\nimport BASE64 from '../../externals/base64';\nimport ISOBoxer from 'codem-isoboxer';\nimport DashJSError from './vo/DashJSError';\nimport {checkParameterType} from './utils/SupervisorTools';\nimport ManifestUpdater from './ManifestUpdater';\nimport URLUtils from '../streaming/utils/URLUtils';\nimport BoxParser from './utils/BoxParser';\n\n/* jscs:disable */\n/**\n * The media types\n * @typedef {(\"video\" | \"audio\" | \"text\" | \"fragmentedText\" | \"embeddedText\" | \"image\")} MediaType\n */\n\n/* jscs:enable */\n\n/**\n * @module MediaPlayer\n * @description The MediaPlayer is the primary dash.js Module and a Facade to build your player around.\n * It will allow you access to all the important dash.js properties/methods via the public API and all the\n * events to build a robust DASH media player.\n */\nfunction MediaPlayer() {\n /**\n * @constant {string} STREAMING_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized\n * @inner\n */\n const STREAMING_NOT_INITIALIZED_ERROR = 'You must first call initialize() and set a source before calling this method';\n /**\n * @constant {string} PLAYBACK_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized\n * @inner\n */\n const PLAYBACK_NOT_INITIALIZED_ERROR = 'You must first call initialize() and set a valid source and view before calling this method';\n /**\n * @constant {string} ELEMENT_NOT_ATTACHED_ERROR error string thrown when a function is called before the dash.js has received a reference of an HTML5 video element\n * @inner\n */\n const ELEMENT_NOT_ATTACHED_ERROR = 'You must first call attachView() to set the video element before calling this method';\n /**\n * @constant {string} SOURCE_NOT_ATTACHED_ERROR error string thrown when a function is called before the dash.js has received a valid source stream.\n * @inner\n */\n const SOURCE_NOT_ATTACHED_ERROR = 'You must first call attachSource() with a valid source before calling this method';\n /**\n * @constant {string} MEDIA_PLAYER_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized.\n * @inner\n */\n const MEDIA_PLAYER_NOT_INITIALIZED_ERROR = 'MediaPlayer not initialized!';\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n let settings = Settings(context).getInstance();\n const debug = Debug(context).getInstance({ settings: settings });\n\n let instance,\n logger,\n source,\n protectionData,\n mediaPlayerInitialized,\n streamingInitialized,\n playbackInitialized,\n autoPlay,\n abrController,\n schemeLoaderFactory,\n timelineConverter,\n mediaController,\n protectionController,\n metricsReportingController,\n mssHandler,\n offlineController,\n adapter,\n mediaPlayerModel,\n errHandler,\n baseURLController,\n capabilities,\n capabilitiesFilter,\n streamController,\n gapController,\n playbackController,\n dashMetrics,\n manifestModel,\n cmcdModel,\n videoModel,\n textController,\n uriFragmentModel,\n domStorage,\n segmentBaseController,\n licenseRequestFilters,\n licenseResponseFilters;\n\n /*\n ---------------------------------------------------------------------------\n\n INIT FUNCTIONS\n\n ---------------------------------------------------------------------------\n */\n function setup() {\n logger = debug.getLogger(instance);\n mediaPlayerInitialized = false;\n playbackInitialized = false;\n streamingInitialized = false;\n autoPlay = true;\n protectionController = null;\n offlineController = null;\n protectionData = null;\n adapter = null;\n segmentBaseController = null;\n Events.extend(MediaPlayerEvents);\n mediaPlayerModel = MediaPlayerModel(context).getInstance();\n videoModel = VideoModel(context).getInstance();\n uriFragmentModel = URIFragmentModel(context).getInstance();\n licenseRequestFilters = [];\n licenseResponseFilters = [];\n }\n\n /**\n * Configure media player with customs controllers. Helpful for tests\n *\n * @param {object=} config controllers configuration\n * @memberof module:MediaPlayer\n * @instance\n */\n function setConfig(config) {\n if (!config) {\n return;\n }\n if (config.capabilities) {\n capabilities = config.capabilities;\n }\n if (config.capabilitiesFilter) {\n capabilitiesFilter = config.capabilitiesFilter;\n }\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.gapController) {\n gapController = config.gapController;\n }\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n if (config.mediaPlayerModel) {\n mediaPlayerModel = config.mediaPlayerModel;\n }\n if (config.abrController) {\n abrController = config.abrController;\n }\n if (config.schemeLoaderFactory) {\n schemeLoaderFactory = config.schemeLoaderFactory;\n }\n if (config.mediaController) {\n mediaController = config.mediaController;\n }\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n /**\n * Upon creating the MediaPlayer you must call initialize before you call anything else.\n * There is one exception to this rule. It is crucial to call {@link module:MediaPlayer#extend extend()}\n * with all your extensions prior to calling initialize.\n *\n * ALL arguments are optional and there are individual methods to set each argument later on.\n * The args in this method are just for convenience and should only be used for a simple player setup.\n *\n * @param {HTML5MediaElement=} view - Optional arg to set the video element. {@link module:MediaPlayer#attachView attachView()}\n * @param {string=} source - Optional arg to set the media source. {@link module:MediaPlayer#attachSource attachSource()}\n * @param {boolean=} AutoPlay - Optional arg to set auto play. {@link module:MediaPlayer#setAutoPlay setAutoPlay()}\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @see {@link module:MediaPlayer#setAutoPlay setAutoPlay()}\n * @memberof module:MediaPlayer\n * @instance\n */\n function initialize(view, source, AutoPlay) {\n if (!capabilities) {\n capabilities = Capabilities(context).getInstance();\n }\n\n errHandler = ErrorHandler(context).getInstance();\n\n if (!capabilities.supportsMediaSource()) {\n errHandler.error(new DashJSError(Errors.CAPABILITY_MEDIASOURCE_ERROR_CODE, Errors.CAPABILITY_MEDIASOURCE_ERROR_MESSAGE));\n return;\n }\n\n if (mediaPlayerInitialized) return;\n mediaPlayerInitialized = true;\n\n // init some controllers and models\n timelineConverter = TimelineConverter(context).getInstance();\n if (!abrController) {\n abrController = AbrController(context).getInstance();\n abrController.setConfig({\n settings: settings\n });\n }\n\n if (!schemeLoaderFactory) {\n schemeLoaderFactory = SchemeLoaderFactory(context).getInstance();\n }\n\n if (!playbackController) {\n playbackController = PlaybackController(context).getInstance();\n }\n\n if (!mediaController) {\n mediaController = MediaController(context).getInstance();\n }\n\n if (!streamController) {\n streamController = StreamController(context).getInstance();\n }\n\n if (!gapController) {\n gapController = GapController(context).getInstance();\n }\n\n if (!capabilitiesFilter) {\n capabilitiesFilter = CapabilitiesFilter(context).getInstance();\n }\n\n adapter = DashAdapter(context).getInstance();\n\n manifestModel = ManifestModel(context).getInstance();\n\n cmcdModel = CmcdModel(context).getInstance();\n\n dashMetrics = DashMetrics(context).getInstance({\n settings: settings\n });\n textController = TextController(context).getInstance();\n domStorage = DOMStorage(context).getInstance({\n settings: settings\n });\n\n adapter.setConfig({\n constants: Constants,\n cea608parser: cea608parser,\n errHandler: errHandler,\n BASE64: BASE64\n });\n\n if (!baseURLController) {\n baseURLController = BaseURLController(context).create();\n }\n\n baseURLController.setConfig({\n adapter: adapter\n });\n\n\n segmentBaseController = SegmentBaseController(context).getInstance({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n errHandler: errHandler,\n baseURLController: baseURLController,\n events: Events,\n eventBus: eventBus,\n debug: debug,\n boxParser: BoxParser(context).getInstance(),\n requestModifier: RequestModifier(context).getInstance(),\n errors: Errors\n });\n\n segmentBaseController.initialize();\n\n // configure controllers\n mediaController.setConfig({\n domStorage: domStorage,\n settings: settings\n });\n\n restoreDefaultUTCTimingSources();\n setAutoPlay(AutoPlay !== undefined ? AutoPlay : true);\n\n // Detect and initialize offline module to support offline contents playback\n detectOffline();\n\n if (view) {\n attachView(view);\n }\n\n if (source) {\n attachSource(source);\n }\n\n logger.info('[dash.js ' + getVersion() + '] ' + 'MediaPlayer has been initialized');\n }\n\n /**\n * Sets the MPD source and the video element to null. You can also reset the MediaPlayer by\n * calling attachSource with a new source file.\n *\n * This call does not destroy the MediaPlayer. To destroy the MediaPlayer and free all of its\n * memory, call destroy().\n *\n * @memberof module:MediaPlayer\n * @instance\n */\n function reset() {\n attachSource(null);\n attachView(null);\n protectionData = null;\n if (protectionController) {\n protectionController.reset();\n protectionController = null;\n }\n if (metricsReportingController) {\n metricsReportingController.reset();\n metricsReportingController = null;\n }\n\n segmentBaseController.reset();\n\n settings.reset();\n\n if (offlineController) {\n offlineController.reset();\n offlineController = null;\n }\n }\n\n /**\n * Completely destroys the media player and frees all memory.\n *\n * @memberof module:MediaPlayer\n * @instance\n */\n function destroy() {\n reset();\n licenseRequestFilters = [];\n licenseResponseFilters = [];\n FactoryMaker.deleteSingletonInstances(context);\n }\n\n /**\n * The ready state of the MediaPlayer based on both the video element and MPD source being defined.\n *\n * @returns {boolean} The current ready state of the MediaPlayer\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @memberof module:MediaPlayer\n * @instance\n */\n function isReady() {\n return (!!source && !!videoModel.getElement());\n }\n\n /**\n * Use the on method to listen for public events found in MediaPlayer.events. {@link MediaPlayerEvents}\n *\n * @param {string} type - {@link MediaPlayerEvents}\n * @param {Function} listener - callback method when the event fires.\n * @param {Object} scope - context of the listener so it can be removed properly.\n * @param {Object} options - object to define various options such as priority and mode\n * @memberof module:MediaPlayer\n * @instance\n */\n function on(type, listener, scope, options) {\n eventBus.on(type, listener, scope, options);\n }\n\n /**\n * Use the off method to remove listeners for public events found in MediaPlayer.events. {@link MediaPlayerEvents}\n *\n * @param {string} type - {@link MediaPlayerEvents}\n * @param {Function} listener - callback method when the event fires.\n * @param {Object} scope - context of the listener so it can be removed properly.\n * @memberof module:MediaPlayer\n * @instance\n */\n function off(type, listener, scope) {\n eventBus.off(type, listener, scope);\n }\n\n /**\n * Current version of Dash.js\n * @returns {string} the current dash.js version string.\n * @memberof module:MediaPlayer\n * @instance\n */\n function getVersion() {\n return getVersionString();\n }\n\n /**\n * Use this method to access the dash.js logging class.\n *\n * @returns {Debug}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDebug() {\n return debug;\n }\n\n /*\n ---------------------------------------------------------------------------\n\n PLAYBACK FUNCTIONS\n\n ---------------------------------------------------------------------------\n */\n\n /**\n * Causes the player to begin streaming the media as set by the {@link module:MediaPlayer#attachSource attachSource()}\n * method in preparation for playing. It specifically does not require a view to be attached with {@link module:MediaPlayer#attachSource attachView()} to begin preloading.\n * When a view is attached after preloading, the buffered data is transferred to the attached mediaSource buffers.\n *\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~SOURCE_NOT_ATTACHED_ERROR SOURCE_NOT_ATTACHED_ERROR} if called before attachSource function\n * @instance\n */\n function preload() {\n if (videoModel.getElement() || streamingInitialized) {\n return false;\n }\n if (source) {\n initializePlayback();\n } else {\n throw SOURCE_NOT_ATTACHED_ERROR;\n }\n }\n\n /**\n * The play method initiates playback of the media defined by the {@link module:MediaPlayer#attachSource attachSource()} method.\n * This method will call play on the native Video Element.\n *\n * @see {@link module:MediaPlayer#attachSource attachSource()}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function play() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n if (!autoPlay || (isPaused() && playbackInitialized)) {\n playbackController.play();\n }\n }\n\n /**\n * This method will call pause on the native Video Element.\n *\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function pause() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n playbackController.pause();\n }\n\n /**\n * Returns a Boolean that indicates whether the Video Element is paused.\n * @return {boolean}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function isPaused() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return playbackController.isPaused();\n }\n\n /**\n * Sets the currentTime property of the attached video element. If it is a live stream with a\n * timeShiftBufferLength, then the DVR window offset will be automatically calculated.\n *\n * @param {number} value - A relative time, in seconds, based on the return value of the {@link module:MediaPlayer#duration duration()} method is expected\n * @see {@link module:MediaPlayer#getDVRSeekOffset getDVRSeekOffset()}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not number type or is NaN.\n * @memberof module:MediaPlayer\n * @instance\n */\n function seek(value) {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n\n checkParameterType(value, 'number');\n\n if (isNaN(value)) {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n\n let s = playbackController.getIsDynamic() ? getDVRSeekOffset(value) : value;\n playbackController.seek(s);\n }\n\n /**\n * Returns a Boolean that indicates whether the media is in the process of seeking to a new position.\n * @return {boolean}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function isSeeking() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return playbackController.isSeeking();\n }\n\n /**\n * Returns a Boolean that indicates whether the media is in the process of dynamic.\n * @return {boolean}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function isDynamic() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return playbackController.getIsDynamic();\n }\n\n /**\n * Use this method to set the native Video Element's playback rate.\n * @param {number} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function setPlaybackRate(value) {\n getVideoElement().playbackRate = value;\n }\n\n /**\n * Returns the current playback rate.\n * @returns {number}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getPlaybackRate() {\n return getVideoElement().playbackRate;\n }\n\n /**\n * Use this method to set the native Video Element's muted state. Takes a Boolean that determines whether audio is muted. true if the audio is muted and false otherwise.\n * @param {boolean} value\n * @memberof module:MediaPlayer\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not boolean type.\n * @instance\n */\n function setMute(value) {\n checkParameterType(value, 'boolean');\n getVideoElement().muted = value;\n }\n\n /**\n * A Boolean that determines whether audio is muted.\n * @returns {boolean}\n * @memberof module:MediaPlayer\n * @instance\n */\n function isMuted() {\n return getVideoElement().muted;\n }\n\n /**\n * A double indicating the audio volume, from 0.0 (silent) to 1.0 (loudest).\n * @param {number} value\n * @memberof module:MediaPlayer\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not number type, or is NaN or not between 0 and 1.\n * @instance\n */\n function setVolume(value) {\n if (typeof value !== 'number' || isNaN(value) || value < 0.0 || value > 1.0) {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n getVideoElement().volume = value;\n }\n\n /**\n * Returns the current audio volume, from 0.0 (silent) to 1.0 (loudest).\n * @returns {number}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getVolume() {\n return getVideoElement().volume;\n }\n\n /**\n * The length of the buffer for a given media type, in seconds. Valid media\n * types are \"video\", \"audio\" and \"fragmentedText\". If no type is passed\n * in, then the minimum of video, audio and fragmentedText buffer length is\n * returned. NaN is returned if an invalid type is requested, the\n * presentation does not contain that type, or if no arguments are passed\n * and the presentation does not include any adaption sets of valid media\n * type.\n *\n * @param {MediaType} type - 'video', 'audio' or 'fragmentedText'\n * @returns {number} The length of the buffer for the given media type, in\n * seconds, or NaN\n * @memberof module:MediaPlayer\n * @instance\n */\n function getBufferLength(type) {\n const types = [Constants.VIDEO, Constants.AUDIO, Constants.FRAGMENTED_TEXT];\n if (!type) {\n const buffer = types.map(\n t => getTracksFor(t).length > 0 ? getDashMetrics().getCurrentBufferLevel(t) : Number.MAX_VALUE\n ).reduce(\n (p, c) => Math.min(p, c)\n );\n return buffer === Number.MAX_VALUE ? NaN : buffer;\n } else {\n if (types.indexOf(type) !== -1) {\n const buffer = getDashMetrics().getCurrentBufferLevel(type);\n return buffer ? buffer : NaN;\n } else {\n logger.warn('getBufferLength requested for invalid type');\n return NaN;\n }\n }\n }\n\n /**\n * The timeShiftBufferLength (DVR Window), in seconds.\n *\n * @returns {number} The window of allowable play time behind the live point of a live stream.\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDVRWindowSize() {\n let metric = dashMetrics.getCurrentDVRInfo();\n if (!metric) {\n return 0;\n }\n return metric.manifestInfo.DVRWindowSize;\n }\n\n /**\n * This method should only be used with a live stream that has a valid timeShiftBufferLength (DVR Window).\n * NOTE - If you do not need the raw offset value (i.e. media analytics, tracking, etc) consider using the {@link module:MediaPlayer#seek seek()} method\n * which will calculate this value for you and set the video element's currentTime property all in one simple call.\n *\n * @param {number} value - A relative time, in seconds, based on the return value of the {@link module:MediaPlayer#duration duration()} method is expected.\n * @returns {number} A value that is relative the available range within the timeShiftBufferLength (DVR Window).\n * @see {@link module:MediaPlayer#seek seek()}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDVRSeekOffset(value) {\n let metric = dashMetrics.getCurrentDVRInfo();\n if (!metric) {\n return 0;\n }\n\n let liveDelay = playbackController.getLiveDelay();\n\n let val = metric.range.start + value;\n\n if (val > (metric.range.end - liveDelay)) {\n val = metric.range.end - liveDelay;\n }\n\n return val;\n }\n\n /**\n * Current time of the playhead, in seconds.\n *\n * If called with no arguments then the returned time value is time elapsed since the start point of the first stream, or if it is a live stream, then the time will be based on the return value of the {@link module:MediaPlayer#duration duration()} method.\n * However if a stream ID is supplied then time is relative to the start of that stream, or is null if there is no such stream id in the manifest.\n *\n * @param {string} streamId - The ID of a stream that the returned playhead time must be relative to the start of. If undefined, then playhead time is relative to the first stream.\n * @returns {number} The current playhead time of the media, or null.\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function time(streamId) {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n let t = getVideoElement().currentTime;\n\n if (streamId !== undefined) {\n t = streamController.getTimeRelativeToStreamId(t, streamId);\n } else if (playbackController.getIsDynamic()) {\n let metric = dashMetrics.getCurrentDVRInfo();\n t = (metric === null) ? 0 : duration() - (metric.range.end - metric.time);\n }\n\n return t;\n }\n\n /**\n * Duration of the media's playback, in seconds.\n *\n * @returns {number} The current duration of the media.\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function duration() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n let d = getVideoElement().duration;\n\n if (playbackController.getIsDynamic()) {\n\n let metric = dashMetrics.getCurrentDVRInfo();\n let range;\n\n if (!metric) {\n return 0;\n }\n\n range = metric.range.end - metric.range.start;\n d = range < metric.manifestInfo.DVRWindowSize ? range : metric.manifestInfo.DVRWindowSize;\n }\n return d;\n }\n\n /**\n * Use this method to get the current playhead time as an absolute value, the time in seconds since midnight UTC, Jan 1 1970.\n * Note - this property only has meaning for live streams. If called before play() has begun, it will return a value of NaN.\n *\n * @returns {number} The current playhead time as UTC timestamp.\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function timeAsUTC() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n if (time() < 0) {\n return NaN;\n }\n return getAsUTC(time());\n }\n\n /**\n * Use this method to get the current duration as an absolute value, the time in seconds since midnight UTC, Jan 1 1970.\n * Note - this property only has meaning for live streams.\n *\n * @returns {number} The current duration as UTC timestamp.\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function durationAsUTC() {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n return getAsUTC(duration());\n }\n\n /*\n ---------------------------------------------------------------------------\n\n AUTO BITRATE\n\n ---------------------------------------------------------------------------\n */\n /**\n * Gets the top quality BitrateInfo checking portal limit and max allowed.\n * It calls getTopQualityIndexFor internally\n *\n * @param {MediaType} type - 'video' or 'audio'\n * @memberof module:MediaPlayer\n * @returns {BitrateInfo | null}\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getTopBitrateInfoFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n return abrController.getTopBitrateInfoFor(type);\n }\n\n /**\n * Gets the current download quality for media type video, audio or images. For video and audio types the ABR\n * rules update this value before every new download unless setAutoSwitchQualityFor(type, false) is called. For 'image'\n * type, thumbnails, there is no ABR algorithm and quality is set manually.\n *\n * @param {MediaType} type - 'video', 'audio' or 'image' (thumbnails)\n * @returns {number} the quality index, 0 corresponding to the lowest bitrate\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#setAutoSwitchQualityFor setAutoSwitchQualityFor()}\n * @see {@link module:MediaPlayer#setQualityFor setQualityFor()}\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getQualityFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n if (type === Constants.IMAGE) {\n const activeStream = getActiveStream();\n if (!activeStream) {\n return -1;\n }\n const thumbnailController = activeStream.getThumbnailController();\n\n return !thumbnailController ? -1 : thumbnailController.getCurrentTrackIndex();\n }\n return abrController.getQualityFor(type);\n }\n\n /**\n * Sets the current quality for media type instead of letting the ABR Heuristics automatically selecting it.\n * This value will be overwritten by the ABR rules unless setAutoSwitchQualityFor(type, false) is called.\n *\n * @param {MediaType} type - 'video', 'audio' or 'image'\n * @param {number} value - the quality index, 0 corresponding to the lowest bitrate\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#setAutoSwitchQualityFor setAutoSwitchQualityFor()}\n * @see {@link module:MediaPlayer#getQualityFor getQualityFor()}\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function setQualityFor(type, value) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n if (type === Constants.IMAGE) {\n const activeStream = getActiveStream();\n if (!activeStream) {\n return;\n }\n const thumbnailController = activeStream.getThumbnailController();\n if (thumbnailController) {\n thumbnailController.setTrackByIndex(value);\n }\n }\n abrController.setPlaybackQuality(type, streamController.getActiveStreamInfo(), value);\n }\n\n /**\n * Update the video element size variables\n * Should be called on window resize (or any other time player is resized). Fullscreen does trigger a window resize event.\n *\n * Once windowResizeEventCalled = true, abrController.checkPortalSize() will use element size variables rather than querying clientWidth every time.\n *\n * @memberof module:MediaPlayer\n * @instance\n */\n function updatePortalSize() {\n abrController.setElementSize();\n abrController.setWindowResizeEventCalled(true);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n MEDIA PLAYER CONFIGURATION\n\n ---------------------------------------------------------------------------\n */\n /**\n * Set to false to prevent stream from auto-playing when the view is attached.
\n *\n * @param {boolean} value\n * @default true\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#attachView attachView()}\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not boolean type.\n * @instance\n *\n */\n function setAutoPlay(value) {\n checkParameterType(value, 'boolean');\n autoPlay = value;\n }\n\n /**\n * @returns {boolean} The current autoPlay state.\n * @memberof module:MediaPlayer\n * @instance\n */\n function getAutoPlay() {\n return autoPlay;\n }\n\n /**\n * @memberof module:MediaPlayer\n * @instance\n * @returns {number|NaN} Current live stream latency in seconds. It is the difference between current time and time position at the playback head.\n * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n */\n function getCurrentLiveLatency() {\n if (!mediaPlayerInitialized) {\n throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;\n }\n\n if (!playbackInitialized) {\n return NaN;\n }\n\n return playbackController.getCurrentLiveLatency();\n }\n\n /**\n * Add a custom ABR Rule\n * Rule will be apply on next stream if a stream is being played\n *\n * @param {string} type - rule type (one of ['qualitySwitchRules','abandonFragmentRules'])\n * @param {string} rulename - name of rule (used to identify custom rule). If one rule of same name has been added, then existing rule will be updated\n * @param {object} rule - the rule object instance\n * @memberof module:MediaPlayer\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with invalid arguments.\n * @instance\n */\n function addABRCustomRule(type, rulename, rule) {\n mediaPlayerModel.addABRCustomRule(type, rulename, rule);\n }\n\n /**\n * Remove a custom ABR Rule\n *\n * @param {string} rulename - name of the rule to be removed\n * @memberof module:MediaPlayer\n * @instance\n */\n function removeABRCustomRule(rulename) {\n mediaPlayerModel.removeABRCustomRule(rulename);\n }\n\n /**\n * Remove all custom rules\n * @memberof module:MediaPlayer\n * @instance\n */\n function removeAllABRCustomRule() {\n mediaPlayerModel.removeABRCustomRule();\n }\n\n /**\n * Allows you to set a scheme and server source for UTC live edge detection for dynamic streams.\n * If UTCTiming is defined in the manifest, it will take precedence over any time source manually added.
\n * If you have exposed the Date header, use the method {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}.\n * This will allow the date header on the manifest to be used instead of a time server
\n * @param {string} schemeIdUri - \n * urn:mpeg:dash:utc:http-head:2014 \n * urn:mpeg:dash:utc:http-xsdate:2014 \n * urn:mpeg:dash:utc:http-iso:2014 \n * urn:mpeg:dash:utc:direct:2014 \n * \n * Some specs referencing early ISO23009-1 drafts incorrectly use\n * 2012 in the URI, rather than 2014. support these for now.
\n * \n * urn:mpeg:dash:utc:http-head:2012 \n * urn:mpeg:dash:utc:http-xsdate:2012 \n * urn:mpeg:dash:utc:http-iso:2012 \n * urn:mpeg:dash:utc:direct:2012 \n * \n * @param {string} value - Path to a time source.\n * @default\n * \n * schemeIdUri:urn:mpeg:dash:utc:http-xsdate:2014 \n * value:http://time.akamai.com/?iso&ms/li>\n * \n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#removeUTCTimingSource removeUTCTimingSource()}\n * @instance\n */\n function addUTCTimingSource(schemeIdUri, value) {\n mediaPlayerModel.addUTCTimingSource(schemeIdUri, value);\n }\n\n /**\n * Allows you to remove a UTC time source. Both schemeIdUri and value need to match the Dash.vo.UTCTiming properties in order for the\n * entry to be removed from the array
\n * @param {string} schemeIdUri - see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n * @param {string} value - see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}\n * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with invalid arguments, schemeIdUri and value are not string type.\n * @instance\n */\n function removeUTCTimingSource(schemeIdUri, value) {\n mediaPlayerModel.removeUTCTimingSource(schemeIdUri, value);\n }\n\n /**\n * Allows you to clear the stored array of time sources.
\n * Example use: If you have exposed the Date header, calling this method\n * will allow the date header on the manifest to be used instead of the time server.
\n * Example use: Calling this method, assuming there is not an exposed date header on the manifest, will default back\n * to using a binary search to discover the live edge
\n *\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#restoreDefaultUTCTimingSources restoreDefaultUTCTimingSources()}\n * @instance\n */\n function clearDefaultUTCTimingSources() {\n mediaPlayerModel.clearDefaultUTCTimingSources();\n }\n\n /**\n * Allows you to restore the default time sources after calling {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}
\n *\n * @default\n * \n * schemeIdUri:urn:mpeg:dash:utc:http-xsdate:2014 \n * value:http://time.akamai.com/?iso&ms \n * \n *\n * @memberof module:MediaPlayer\n * @see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n * @instance\n */\n function restoreDefaultUTCTimingSources() {\n mediaPlayerModel.restoreDefaultUTCTimingSources();\n }\n\n /**\n * Returns the average throughput computed in the ABR logic\n *\n * @param {MediaType} type\n * @return {number} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function getAverageThroughput(type) {\n const throughputHistory = abrController.getThroughputHistory();\n return throughputHistory ? throughputHistory.getAverageThroughput(type) : 0;\n }\n\n /**\n * Sets whether withCredentials on XHR requests for a particular request\n * type is true or false\n *\n * @default false\n * @param {string} type - one of HTTPRequest.*_TYPE\n * @param {boolean} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function setXHRWithCredentialsForType(type, value) {\n mediaPlayerModel.setXHRWithCredentialsForType(type, value);\n }\n\n /**\n * Gets whether withCredentials on XHR requests for a particular request\n * type is true or false\n *\n * @param {string} type - one of HTTPRequest.*_TYPE\n * @return {boolean}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getXHRWithCredentialsForType(type) {\n return mediaPlayerModel.getXHRWithCredentialsForType(type);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n OFFLINE\n\n ---------------------------------------------------------------------------\n */\n\n /**\n * Detects if Offline is included and returns an instance of OfflineController.js\n * @memberof module:MediaPlayer\n * @instance\n */\n function getOfflineController() {\n return detectOffline();\n }\n\n /*\n ---------------------------------------------------------------------------\n\n METRICS\n\n ---------------------------------------------------------------------------\n */\n /**\n * Returns the DashMetrics.js Module. You use this Module to get access to all the public metrics\n * stored in dash.js\n *\n * @see {@link module:DashMetrics}\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDashMetrics() {\n return dashMetrics;\n }\n\n /*\n ---------------------------------------------------------------------------\n\n TEXT MANAGEMENT\n\n ---------------------------------------------------------------------------\n */\n /**\n * Set default language for text. If default language is not one of text tracks, dash will choose the first one.\n *\n * @param {string} lang - default language\n * @memberof module:MediaPlayer\n * @instance\n * @deprecated will be removed in version 3.2.0. Please use setInitialMediaSettingsFor(\"fragmentedText\", { lang: lang }) instead\n */\n function setTextDefaultLanguage(lang) {\n logger.warn('setTextDefaultLanguage is deprecated and will be removed in version 3.2.0. Please use setInitialMediaSettingsFor(\"fragmentedText\", { lang: lang }) instead');\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n textController.setTextDefaultLanguage(lang);\n }\n\n /**\n * Get default language for text.\n *\n * @return {string} the default language if it has been set using setTextDefaultLanguage\n * @memberof module:MediaPlayer\n * @instance\n * @deprecated will be removed in version 3.2.0. Please use getInitialMediaSettingsFor(\"fragmentedText\").lang instead\n */\n function getTextDefaultLanguage() {\n logger.warn('getTextDefaultLanguage is deprecated and will be removed in version 3.2.0. Please use getInitialMediaSettingsFor(\"fragmentedText\").lang instead');\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n return textController.getTextDefaultLanguage();\n }\n\n /**\n * Set enabled default state.\n * This is used to enable/disable text when a file is loaded.\n * During playback, use enableText to enable text for the file\n *\n * @param {boolean} enable - true to enable text, false otherwise\n * @memberof module:MediaPlayer\n * @instance\n */\n function setTextDefaultEnabled(enable) {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.setTextDefaultEnabled(enable);\n }\n\n /**\n * Get enabled default state.\n *\n * @return {boolean} default enable state\n * @memberof module:MediaPlayer\n * @instance\n */\n function getTextDefaultEnabled() {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n return textController.getTextDefaultEnabled();\n }\n\n /**\n * Enable/disable text\n * When enabling text, dash will choose the previous selected text track\n *\n * @param {boolean} enable - true to enable text, false otherwise (same as setTextTrack(-1))\n * @memberof module:MediaPlayer\n * @instance\n */\n function enableText(enable) {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.enableText(enable);\n }\n\n /**\n * Enable/disable text\n * When enabling dash will keep downloading and process fragmented text tracks even if all tracks are in mode \"hidden\"\n *\n * @param {boolean} enable - true to enable text streaming even if all text tracks are hidden.\n * @memberof module:MediaPlayer\n * @instance\n */\n function enableForcedTextStreaming(enable) {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.enableForcedTextStreaming(enable);\n }\n\n /**\n * Return if text is enabled\n *\n * @return {boolean} return true if text is enabled, false otherwise\n * @memberof module:MediaPlayer\n * @instance\n */\n function isTextEnabled() {\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n return textController.isTextEnabled();\n }\n\n /**\n * Use this method to change the current text track for both external time text files and fragmented text tracks. There is no need to\n * set the track mode on the video object to switch a track when using this method.\n * @param {number} idx - Index of track based on the order of the order the tracks are added Use -1 to disable all tracks. (turn captions off). Use module:MediaPlayer#dashjs.MediaPlayer.events.TEXT_TRACK_ADDED.\n * @see {@link MediaPlayerEvents#event:TEXT_TRACK_ADDED dashjs.MediaPlayer.events.TEXT_TRACK_ADDED}\n * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function setTextTrack(idx) {\n if (!playbackInitialized) {\n throw PLAYBACK_NOT_INITIALIZED_ERROR;\n }\n\n if (textController === undefined) {\n textController = TextController(context).getInstance();\n }\n\n textController.setTextTrack(idx);\n }\n\n function getCurrentTextTrackIndex() {\n let idx = NaN;\n if (textController) {\n idx = textController.getCurrentTrackIdx();\n }\n return idx;\n }\n\n /**\n * This method serves to control captions z-index value. If 'true' is passed, the captions will have the highest z-index and be\n * displayed on top of other html elements. Default value is 'false' (z-index is not set).\n * @param {boolean} value\n * @memberof module:MediaPlayer\n * @instance\n */\n function displayCaptionsOnTop(value) {\n let textTracks = TextTracks(context).getInstance();\n textTracks.setConfig({\n videoModel: videoModel\n });\n textTracks.initialize();\n textTracks.setDisplayCConTop(value);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n VIDEO ELEMENT MANAGEMENT\n\n ---------------------------------------------------------------------------\n */\n\n /**\n * Returns instance of Video Element that was attached by calling attachView()\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~ELEMENT_NOT_ATTACHED_ERROR ELEMENT_NOT_ATTACHED_ERROR} if called before attachView function\n * @instance\n */\n function getVideoElement() {\n if (!videoModel.getElement()) {\n throw ELEMENT_NOT_ATTACHED_ERROR;\n }\n return videoModel.getElement();\n }\n\n /**\n * Use this method to attach an HTML5 VideoElement for dash.js to operate upon.\n *\n * @param {Object} element - An HTMLMediaElement that has already been defined in the DOM (or equivalent stub).\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n * @instance\n */\n function attachView(element) {\n if (!mediaPlayerInitialized) {\n throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;\n }\n\n videoModel.setElement(element);\n\n if (element) {\n detectProtection();\n detectMetricsReporting();\n detectMss();\n\n if (streamController) {\n streamController.switchToVideoElement();\n }\n }\n\n if (playbackInitialized) { //Reset if we have been playing before, so this is a new element.\n resetPlaybackControllers();\n }\n\n initializePlayback();\n }\n\n /**\n * Returns instance of Div that was attached by calling attachTTMLRenderingDiv()\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getTTMLRenderingDiv() {\n return videoModel ? videoModel.getTTMLRenderingDiv() : null;\n }\n\n /**\n * Use this method to attach an HTML5 div for dash.js to render rich TTML subtitles.\n *\n * @param {HTMLDivElement} div - An unstyled div placed after the video element. It will be styled to match the video size and overlay z-order.\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~ELEMENT_NOT_ATTACHED_ERROR ELEMENT_NOT_ATTACHED_ERROR} if called before attachView function\n * @instance\n */\n function attachTTMLRenderingDiv(div) {\n if (!videoModel.getElement()) {\n throw ELEMENT_NOT_ATTACHED_ERROR;\n }\n videoModel.setTTMLRenderingDiv(div);\n }\n\n /*\n ---------------------------------------------------------------------------\n\n STREAM AND TRACK MANAGEMENT\n\n ---------------------------------------------------------------------------\n */\n /**\n * @param {MediaType} type\n * @returns {Array}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getBitrateInfoListFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let stream = getActiveStream();\n return stream ? stream.getBitrateListFor(type) : [];\n }\n\n /**\n * This method returns the list of all available streams from a given manifest\n * @param {Object} manifest\n * @returns {Array} list of {@link StreamInfo}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getStreamsFromManifest(manifest) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n return adapter.getStreamsInfo(manifest);\n }\n\n /**\n * This method returns the list of all available tracks for a given media type\n * @param {MediaType} type\n * @returns {Array} list of {@link MediaInfo}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getTracksFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let streamInfo = streamController.getActiveStreamInfo();\n return mediaController.getTracksFor(type, streamInfo);\n }\n\n /**\n * This method returns the list of all available tracks for a given media type and streamInfo from a given manifest\n * @param {MediaType} type\n * @param {Object} manifest\n * @param {Object} streamInfo\n * @returns {Array} list of {@link MediaInfo}\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getTracksForTypeFromManifest(type, manifest, streamInfo) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n\n streamInfo = streamInfo || adapter.getStreamsInfo(manifest, 1)[0];\n\n return streamInfo ? adapter.getAllMediaInfoForType(streamInfo, type, manifest) : [];\n }\n\n /**\n * @param {MediaType} type\n * @returns {Object|null} {@link MediaInfo}\n *\n * @memberof module:MediaPlayer\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @instance\n */\n function getCurrentTrackFor(type) {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let streamInfo = streamController.getActiveStreamInfo();\n return mediaController.getCurrentTrackFor(type, streamInfo);\n }\n\n /**\n * This method allows to set media settings that will be used to pick the initial track. Format of the settings\n * is following: \n * If you set override to true any public method or property in your custom object will\n * override the dash.js parent object's property(ies) and will be used instead but the\n * dash.js parent module will still be created. \n *\n * If you set override to false your object will completely replace the dash.js object.\n * (Note: This is how it was in 1.x of Dash.js with Dijon). \n * \n * When you extend you get access to this.context, this.factory and this.parent to operate with in your custom object. \n * \n * this.context - can be used to pass context for singleton access.this.factory - can be used to call factory.getSingletonInstance().this.parent - is the reference of the parent object to call other public methods. (this.parent is excluded if you extend with override set to false or option 2) \n * You must call extend before you call initialize \n * @see {@link module:MediaPlayer#initialize initialize()}\n * @param {string} parentNameString - name of parent module\n * @param {Object} childInstance - overriding object\n * @param {boolean} override - replace only some methods (true) or the whole object (false)\n * @memberof module:MediaPlayer\n * @instance\n */\n function extend(parentNameString, childInstance, override) {\n FactoryMaker.extend(parentNameString, childInstance, override, context);\n }\n\n /**\n * This method returns the active stream\n *\n * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n * @memberof module:MediaPlayer\n * @instance\n */\n function getActiveStream() {\n if (!streamingInitialized) {\n throw STREAMING_NOT_INITIALIZED_ERROR;\n }\n let streamInfo = streamController.getActiveStreamInfo();\n return streamInfo ? streamController.getStreamById(streamInfo.id) : null;\n }\n\n //***********************************\n // PRIVATE METHODS\n //***********************************\n\n function resetPlaybackControllers() {\n playbackInitialized = false;\n streamingInitialized = false;\n adapter.reset();\n streamController.reset();\n gapController.reset();\n playbackController.reset();\n abrController.reset();\n mediaController.reset();\n textController.reset();\n if (protectionController) {\n if (settings.get().streaming.keepProtectionMediaKeys) {\n protectionController.stop();\n } else {\n protectionController.reset();\n protectionController = null;\n detectProtection();\n }\n }\n cmcdModel.reset();\n }\n\n function createPlaybackControllers() {\n // creates or get objects instances\n const manifestLoader = createManifestLoader();\n\n if (!streamController) {\n streamController = StreamController(context).getInstance();\n }\n\n capabilitiesFilter.setConfig({\n capabilities,\n adapter,\n settings\n });\n\n streamController.setConfig({\n capabilities: capabilities,\n capabilitiesFilter,\n manifestLoader: manifestLoader,\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n protectionController: protectionController,\n adapter: adapter,\n dashMetrics: dashMetrics,\n errHandler: errHandler,\n timelineConverter: timelineConverter,\n videoModel: videoModel,\n playbackController: playbackController,\n abrController: abrController,\n mediaController: mediaController,\n textController: textController,\n settings: settings,\n baseURLController: baseURLController\n });\n\n gapController.setConfig({\n settings,\n playbackController,\n streamController,\n videoModel,\n timelineConverter,\n adapter\n });\n\n playbackController.setConfig({\n streamController: streamController,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n adapter: adapter,\n videoModel: videoModel,\n timelineConverter: timelineConverter,\n uriFragmentModel: uriFragmentModel,\n settings: settings\n });\n\n abrController.setConfig({\n streamController: streamController,\n domStorage: domStorage,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n adapter: adapter,\n videoModel: videoModel,\n settings: settings\n });\n\n textController.setConfig({\n errHandler: errHandler,\n manifestModel: manifestModel,\n adapter: adapter,\n mediaController: mediaController,\n streamController: streamController,\n videoModel: videoModel\n });\n\n cmcdModel.setConfig({\n abrController,\n dashMetrics,\n playbackController\n });\n\n // initialises controller\n streamController.initialize(autoPlay, protectionData);\n gapController.initialize();\n cmcdModel.initialize();\n }\n\n function createManifestLoader() {\n return ManifestLoader(context).create({\n debug: debug,\n errHandler: errHandler,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n requestModifier: RequestModifier(context).getInstance(),\n mssHandler: mssHandler,\n settings: settings\n });\n }\n\n function detectProtection() {\n if (protectionController) {\n return protectionController;\n }\n // do not require Protection as dependencies as this is optional and intended to be loaded separately\n let Protection = dashjs.Protection; /* jshint ignore:line */\n if (typeof Protection === 'function') { //TODO need a better way to register/detect plugin components\n let protection = Protection(context).create();\n Events.extend(Protection.events);\n MediaPlayerEvents.extend(Protection.events, {\n publicOnly: true\n });\n Errors.extend(Protection.errors);\n if (!capabilities) {\n capabilities = Capabilities(context).getInstance();\n }\n protectionController = protection.createProtectionSystem({\n debug: debug,\n errHandler: errHandler,\n videoModel: videoModel,\n capabilities: capabilities,\n eventBus: eventBus,\n events: Events,\n BASE64: BASE64,\n constants: Constants,\n cmcdModel: cmcdModel\n });\n if (protectionController) {\n protectionController.setLicenseRequestFilters(licenseRequestFilters);\n protectionController.setLicenseResponseFilters(licenseResponseFilters);\n }\n return protectionController;\n }\n\n return null;\n }\n\n function detectMetricsReporting() {\n if (metricsReportingController) {\n return;\n }\n // do not require MetricsReporting as dependencies as this is optional and intended to be loaded separately\n let MetricsReporting = dashjs.MetricsReporting; /* jshint ignore:line */\n if (typeof MetricsReporting === 'function') { //TODO need a better way to register/detect plugin components\n let metricsReporting = MetricsReporting(context).create();\n\n metricsReportingController = metricsReporting.createMetricsReporting({\n debug: debug,\n eventBus: eventBus,\n mediaElement: getVideoElement(),\n adapter: adapter,\n dashMetrics: dashMetrics,\n events: Events,\n constants: Constants,\n metricsConstants: MetricsConstants\n });\n }\n }\n\n function detectMss() {\n if (mssHandler) {\n return;\n }\n // do not require MssHandler as dependencies as this is optional and intended to be loaded separately\n let MssHandler = dashjs.MssHandler; /* jshint ignore:line */\n if (typeof MssHandler === 'function') { //TODO need a better way to register/detect plugin components\n Errors.extend(MssHandler.errors);\n mssHandler = MssHandler(context).create({\n eventBus: eventBus,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n manifestModel: manifestModel,\n playbackController: playbackController,\n streamController: streamController,\n protectionController: protectionController,\n baseURLController: baseURLController,\n errHandler: errHandler,\n events: Events,\n constants: Constants,\n debug: debug,\n initSegmentType: HTTPRequest.INIT_SEGMENT_TYPE,\n BASE64: BASE64,\n ISOBoxer: ISOBoxer,\n settings: settings\n });\n }\n }\n\n function detectOffline() {\n if (!mediaPlayerInitialized) {\n throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;\n }\n\n if (offlineController) {\n return offlineController;\n }\n\n // do not require Offline as dependencies as this is optional and intended to be loaded separately\n let OfflineController = dashjs.OfflineController; /* jshint ignore:line */\n\n if (typeof OfflineController === 'function') { //TODO need a better way to register/detect plugin components\n Events.extend(OfflineController.events);\n MediaPlayerEvents.extend(OfflineController.events, {\n publicOnly: true\n });\n Errors.extend(OfflineController.errors);\n\n const manifestLoader = createManifestLoader();\n const manifestUpdater = ManifestUpdater(context).create();\n\n manifestUpdater.setConfig({\n manifestModel: manifestModel,\n adapter: adapter,\n manifestLoader: manifestLoader,\n errHandler: errHandler\n });\n\n offlineController = OfflineController(context).create({\n debug: debug,\n manifestUpdater: manifestUpdater,\n baseURLController: baseURLController,\n manifestLoader: manifestLoader,\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n abrController: abrController,\n playbackController: playbackController,\n adapter: adapter,\n errHandler: errHandler,\n dashMetrics: dashMetrics,\n timelineConverter: timelineConverter,\n schemeLoaderFactory: schemeLoaderFactory,\n eventBus: eventBus,\n events: Events,\n errors: Errors,\n constants: Constants,\n settings: settings,\n dashConstants: DashConstants,\n urlUtils: URLUtils(context).getInstance()\n });\n return offlineController;\n }\n\n return null;\n }\n\n function getAsUTC(valToConvert) {\n let metric = dashMetrics.getCurrentDVRInfo();\n let availableFrom,\n utcValue;\n\n if (!metric) {\n return 0;\n }\n availableFrom = metric.manifestInfo.availableFrom.getTime() / 1000;\n utcValue = valToConvert + (availableFrom + metric.range.start);\n return utcValue;\n }\n\n function initializePlayback() {\n\n if (offlineController) {\n offlineController.resetRecords();\n }\n\n if (!streamingInitialized && source) {\n streamingInitialized = true;\n logger.info('Streaming Initialized');\n createPlaybackControllers();\n\n if (typeof source === 'string') {\n streamController.load(source);\n } else {\n streamController.loadWithManifest(source);\n }\n }\n\n if (!playbackInitialized && isReady()) {\n playbackInitialized = true;\n logger.info('Playback Initialized');\n }\n }\n\n /**\n * Returns the DashAdapter.js Module.\n *\n * @see {@link module:DashAdapter}\n * @returns {Object}\n * @memberof module:MediaPlayer\n * @instance\n */\n function getDashAdapter() {\n return adapter;\n }\n\n instance = {\n initialize: initialize,\n setConfig: setConfig,\n on: on,\n off: off,\n extend: extend,\n attachView: attachView,\n attachSource: attachSource,\n isReady: isReady,\n preload: preload,\n play: play,\n isPaused: isPaused,\n pause: pause,\n isSeeking: isSeeking,\n isDynamic: isDynamic,\n seek: seek,\n setPlaybackRate: setPlaybackRate,\n getPlaybackRate: getPlaybackRate,\n setMute: setMute,\n isMuted: isMuted,\n setVolume: setVolume,\n getVolume: getVolume,\n time: time,\n duration: duration,\n timeAsUTC: timeAsUTC,\n durationAsUTC: durationAsUTC,\n getActiveStream: getActiveStream,\n getDVRWindowSize: getDVRWindowSize,\n getDVRSeekOffset: getDVRSeekOffset,\n convertToTimeCode: convertToTimeCode,\n formatUTC: formatUTC,\n getVersion: getVersion,\n getDebug: getDebug,\n getBufferLength: getBufferLength,\n getTTMLRenderingDiv: getTTMLRenderingDiv,\n getVideoElement: getVideoElement,\n getSource: getSource,\n getCurrentLiveLatency: getCurrentLiveLatency,\n getTopBitrateInfoFor: getTopBitrateInfoFor,\n setAutoPlay: setAutoPlay,\n getAutoPlay: getAutoPlay,\n getDashMetrics: getDashMetrics,\n getQualityFor: getQualityFor,\n setQualityFor: setQualityFor,\n updatePortalSize: updatePortalSize,\n setTextDefaultLanguage: setTextDefaultLanguage,\n getTextDefaultLanguage: getTextDefaultLanguage,\n setTextDefaultEnabled: setTextDefaultEnabled,\n getTextDefaultEnabled: getTextDefaultEnabled,\n enableText: enableText,\n enableForcedTextStreaming: enableForcedTextStreaming,\n isTextEnabled: isTextEnabled,\n setTextTrack: setTextTrack,\n getBitrateInfoListFor: getBitrateInfoListFor,\n getStreamsFromManifest: getStreamsFromManifest,\n getTracksFor: getTracksFor,\n getTracksForTypeFromManifest: getTracksForTypeFromManifest,\n getCurrentTrackFor: getCurrentTrackFor,\n setInitialMediaSettingsFor: setInitialMediaSettingsFor,\n getInitialMediaSettingsFor: getInitialMediaSettingsFor,\n setCurrentTrack: setCurrentTrack,\n getTrackSwitchModeFor: getTrackSwitchModeFor,\n setTrackSwitchModeFor: setTrackSwitchModeFor,\n setSelectionModeForInitialTrack: setSelectionModeForInitialTrack,\n getSelectionModeForInitialTrack: getSelectionModeForInitialTrack,\n addABRCustomRule: addABRCustomRule,\n removeABRCustomRule: removeABRCustomRule,\n removeAllABRCustomRule: removeAllABRCustomRule,\n getAverageThroughput: getAverageThroughput,\n retrieveManifest: retrieveManifest,\n addUTCTimingSource: addUTCTimingSource,\n removeUTCTimingSource: removeUTCTimingSource,\n clearDefaultUTCTimingSources: clearDefaultUTCTimingSources,\n restoreDefaultUTCTimingSources: restoreDefaultUTCTimingSources,\n setXHRWithCredentialsForType: setXHRWithCredentialsForType,\n getXHRWithCredentialsForType: getXHRWithCredentialsForType,\n getProtectionController: getProtectionController,\n attachProtectionController: attachProtectionController,\n setProtectionData: setProtectionData,\n registerLicenseRequestFilter: registerLicenseRequestFilter,\n registerLicenseResponseFilter: registerLicenseResponseFilter,\n unregisterLicenseRequestFilter: unregisterLicenseRequestFilter,\n unregisterLicenseResponseFilter: unregisterLicenseResponseFilter,\n displayCaptionsOnTop: displayCaptionsOnTop,\n attachTTMLRenderingDiv: attachTTMLRenderingDiv,\n getCurrentTextTrackIndex: getCurrentTextTrackIndex,\n provideThumbnail: provideThumbnail,\n getDashAdapter: getDashAdapter,\n getOfflineController: getOfflineController,\n getSettings: getSettings,\n updateSettings: updateSettings,\n resetSettings: resetSettings,\n reset: reset,\n destroy: destroy\n };\n\n setup();\n\n return instance;\n}\n\nMediaPlayer.__dashjs_factory_name = 'MediaPlayer';\nconst factory = FactoryMaker.getClassFactory(MediaPlayer);\nfactory.events = MediaPlayerEvents;\nfactory.errors = Errors;\nFactoryMaker.updateClassFactory(MediaPlayer.__dashjs_factory_name, factory);\n\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventsBase from '../core/events/EventsBase';\n\n/**\n * @class\n * @implements EventsBase\n */\nclass MediaPlayerEvents extends EventsBase {\n\n /**\n * @description Public facing external events to be used when developing a player that implements dash.js.\n */\n constructor() {\n super();\n /**\n * Triggered when playback will not start yet\n * as the MPD's availabilityStartTime is in the future.\n * Check delay property in payload to determine time before playback will start.\n * @event MediaPlayerEvents#AST_IN_FUTURE\n */\n this.AST_IN_FUTURE = 'astInFuture';\n\n /**\n * Triggered when the video element's buffer state changes to stalled.\n * Check mediaType in payload to determine type (Video, Audio, FragmentedText).\n * @event MediaPlayerEvents#BUFFER_EMPTY\n */\n this.BUFFER_EMPTY = 'bufferStalled';\n\n /**\n * Triggered when the video element's buffer state changes to loaded.\n * Check mediaType in payload to determine type (Video, Audio, FragmentedText).\n * @event MediaPlayerEvents#BUFFER_LOADED\n */\n this.BUFFER_LOADED = 'bufferLoaded';\n\n /**\n * Triggered when the video element's buffer state changes, either stalled or loaded. Check payload for state.\n * @event MediaPlayerEvents#BUFFER_LEVEL_STATE_CHANGED\n */\n this.BUFFER_LEVEL_STATE_CHANGED = 'bufferStateChanged';\n\n /**\n * Triggered when a dynamic stream changed to static (transition phase between Live and On-Demand).\n * @event MediaPlayerEvents#DYNAMIC_TO_STATIC\n */\n this.DYNAMIC_TO_STATIC = 'dynamicToStatic';\n\n /**\n * Triggered when there is an error from the element or MSE source buffer.\n * @event MediaPlayerEvents#ERROR\n */\n this.ERROR = 'error';\n /**\n * Triggered when a fragment download has completed.\n * @event MediaPlayerEvents#FRAGMENT_LOADING_COMPLETED\n */\n this.FRAGMENT_LOADING_COMPLETED = 'fragmentLoadingCompleted';\n\n /**\n * Triggered when a partial fragment download has completed.\n * @event MediaPlayerEvents#FRAGMENT_LOADING_PROGRESS\n */\n this.FRAGMENT_LOADING_PROGRESS = 'fragmentLoadingProgress';\n /**\n * Triggered when a fragment download has started.\n * @event MediaPlayerEvents#FRAGMENT_LOADING_STARTED\n */\n this.FRAGMENT_LOADING_STARTED = 'fragmentLoadingStarted';\n\n /**\n * Triggered when a fragment download is abandoned due to detection of slow download base on the ABR abandon rule..\n * @event MediaPlayerEvents#FRAGMENT_LOADING_ABANDONED\n */\n this.FRAGMENT_LOADING_ABANDONED = 'fragmentLoadingAbandoned';\n\n /**\n * Triggered when {@link module:Debug} logger methods are called.\n * @event MediaPlayerEvents#LOG\n */\n this.LOG = 'log';\n\n //TODO refactor with internal event\n /**\n * Triggered when the manifest load is complete\n * @event MediaPlayerEvents#MANIFEST_LOADED\n */\n this.MANIFEST_LOADED = 'manifestLoaded';\n\n /**\n * Triggered anytime there is a change to the overall metrics.\n * @event MediaPlayerEvents#METRICS_CHANGED\n */\n this.METRICS_CHANGED = 'metricsChanged';\n\n /**\n * Triggered when an individual metric is added, updated or cleared.\n * @event MediaPlayerEvents#METRIC_CHANGED\n */\n this.METRIC_CHANGED = 'metricChanged';\n\n /**\n * Triggered every time a new metric is added.\n * @event MediaPlayerEvents#METRIC_ADDED\n */\n this.METRIC_ADDED = 'metricAdded';\n\n /**\n * Triggered every time a metric is updated.\n * @event MediaPlayerEvents#METRIC_UPDATED\n */\n this.METRIC_UPDATED = 'metricUpdated';\n\n /**\n * Triggered at the stream end of a period.\n * @event MediaPlayerEvents#PERIOD_SWITCH_COMPLETED\n */\n this.PERIOD_SWITCH_COMPLETED = 'periodSwitchCompleted';\n\n /**\n * Triggered when a new period starts.\n * @event MediaPlayerEvents#PERIOD_SWITCH_STARTED\n */\n this.PERIOD_SWITCH_STARTED = 'periodSwitchStarted';\n\n /**\n * Triggered when an ABR up /down switch is initiated; either by user in manual mode or auto mode via ABR rules.\n * @event MediaPlayerEvents#QUALITY_CHANGE_REQUESTED\n */\n this.QUALITY_CHANGE_REQUESTED = 'qualityChangeRequested';\n\n /**\n * Triggered when the new ABR quality is being rendered on-screen.\n * @event MediaPlayerEvents#QUALITY_CHANGE_RENDERED\n */\n this.QUALITY_CHANGE_RENDERED = 'qualityChangeRendered';\n\n /**\n * Triggered when the new track is being rendered.\n * @event MediaPlayerEvents#TRACK_CHANGE_RENDERED\n */\n this.TRACK_CHANGE_RENDERED = 'trackChangeRendered';\n\n /**\n * Triggered when the source is setup and ready.\n * @event MediaPlayerEvents#SOURCE_INITIALIZED\n */\n this.SOURCE_INITIALIZED = 'sourceInitialized';\n\n /**\n * Triggered when a stream (period) is being loaded\n * @event MediaPlayerEvents#STREAM_INITIALIZING\n */\n this.STREAM_INITIALIZING = 'streamInitializing';\n\n /**\n * Triggered when a stream (period) is loaded\n * @event MediaPlayerEvents#STREAM_UPDATED\n */\n this.STREAM_UPDATED = 'streamUpdated';\n\n /**\n * Triggered when a stream (period) is updated\n * @event MediaPlayerEvents#STREAM_INITIALIZED\n */\n this.STREAM_INITIALIZED = 'streamInitialized';\n\n /**\n * Triggered when the player has been reset.\n * @event MediaPlayerEvents#STREAM_TEARDOWN_COMPLETE\n */\n this.STREAM_TEARDOWN_COMPLETE = 'streamTeardownComplete';\n\n /**\n * Triggered once all text tracks detected in the MPD are added to the video element.\n * @event MediaPlayerEvents#TEXT_TRACKS_ADDED\n */\n this.TEXT_TRACKS_ADDED = 'allTextTracksAdded';\n\n /**\n * Triggered when a text track is added to the video element's TextTrackList\n * @event MediaPlayerEvents#TEXT_TRACK_ADDED\n */\n this.TEXT_TRACK_ADDED = 'textTrackAdded';\n\n /**\n * Triggered when a ttml chunk is parsed.\n * @event MediaPlayerEvents#TTML_PARSED\n */\n this.TTML_PARSED = 'ttmlParsed';\n\n /**\n * Triggered when a ttml chunk has to be parsed.\n * @event MediaPlayerEvents#TTML_TO_PARSE\n */\n this.TTML_TO_PARSE = 'ttmlToParse';\n\n /**\n * Triggered when a caption is rendered.\n * @event MediaPlayerEvents#CAPTION_RENDERED\n */\n this.CAPTION_RENDERED = 'captionRendered';\n\n /**\n * Triggered when the caption container is resized.\n * @event MediaPlayerEvents#CAPTION_CONTAINER_RESIZE\n */\n this.CAPTION_CONTAINER_RESIZE = 'captionContainerResize';\n\n /**\n * Sent when enough data is available that the media can be played,\n * at least for a couple of frames. This corresponds to the\n * HAVE_ENOUGH_DATA readyState.\n * @event MediaPlayerEvents#CAN_PLAY\n */\n this.CAN_PLAY = 'canPlay';\n\n /**\n * Sent when playback completes.\n * @event MediaPlayerEvents#PLAYBACK_ENDED\n */\n this.PLAYBACK_ENDED = 'playbackEnded';\n\n /**\n * Sent when an error occurs. The element's error\n * attribute contains more information.\n * @event MediaPlayerEvents#PLAYBACK_ERROR\n */\n this.PLAYBACK_ERROR = 'playbackError';\n\n /**\n * Sent when playback is not allowed (for example if user gesture is needed).\n * @event MediaPlayerEvents#PLAYBACK_NOT_ALLOWED\n */\n this.PLAYBACK_NOT_ALLOWED = 'playbackNotAllowed';\n\n /**\n * The media's metadata has finished loading; all attributes now\n * contain as much useful information as they're going to.\n * @event MediaPlayerEvents#PLAYBACK_METADATA_LOADED\n */\n this.PLAYBACK_METADATA_LOADED = 'playbackMetaDataLoaded';\n\n /**\n * Sent when playback is paused.\n * @event MediaPlayerEvents#PLAYBACK_PAUSED\n */\n this.PLAYBACK_PAUSED = 'playbackPaused';\n\n /**\n * Sent when the media begins to play (either for the first time, after having been paused,\n * or after ending and then restarting).\n *\n * @event MediaPlayerEvents#PLAYBACK_PLAYING\n */\n this.PLAYBACK_PLAYING = 'playbackPlaying';\n\n /**\n * Sent periodically to inform interested parties of progress downloading\n * the media. Information about the current amount of the media that has\n * been downloaded is available in the media element's buffered attribute.\n * @event MediaPlayerEvents#PLAYBACK_PROGRESS\n */\n this.PLAYBACK_PROGRESS = 'playbackProgress';\n\n /**\n * Sent when the playback speed changes.\n * @event MediaPlayerEvents#PLAYBACK_RATE_CHANGED\n */\n this.PLAYBACK_RATE_CHANGED = 'playbackRateChanged';\n\n /**\n * Sent when a seek operation completes.\n * @event MediaPlayerEvents#PLAYBACK_SEEKED\n */\n this.PLAYBACK_SEEKED = 'playbackSeeked';\n\n /**\n * Sent when a seek operation begins.\n * @event MediaPlayerEvents#PLAYBACK_SEEKING\n */\n this.PLAYBACK_SEEKING = 'playbackSeeking';\n\n /**\n * Sent when a seek operation has been asked.\n * @event MediaPlayerEvents#PLAYBACK_SEEK_ASKED\n */\n this.PLAYBACK_SEEK_ASKED = 'playbackSeekAsked';\n\n /**\n * Sent when the video element reports stalled\n * @event MediaPlayerEvents#PLAYBACK_STALLED\n */\n this.PLAYBACK_STALLED = 'playbackStalled';\n\n /**\n * Sent when playback of the media starts after having been paused;\n * that is, when playback is resumed after a prior pause event.\n *\n * @event MediaPlayerEvents#PLAYBACK_STARTED\n */\n this.PLAYBACK_STARTED = 'playbackStarted';\n\n /**\n * The time indicated by the element's currentTime attribute has changed.\n * @event MediaPlayerEvents#PLAYBACK_TIME_UPDATED\n */\n this.PLAYBACK_TIME_UPDATED = 'playbackTimeUpdated';\n\n /**\n * Sent when the media playback has stopped because of a temporary lack of data.\n *\n * @event MediaPlayerEvents#PLAYBACK_WAITING\n */\n this.PLAYBACK_WAITING = 'playbackWaiting';\n\n /**\n * Manifest validity changed - As a result of an MPD validity expiration event.\n * @event MediaPlayerEvents#MANIFEST_VALIDITY_CHANGED\n */\n this.MANIFEST_VALIDITY_CHANGED = 'manifestValidityChanged';\n\n /**\n * A gap occured in the timeline which requires a seek to the next period\n * @event MediaPlayerEvents#GAP_CAUSED_SEEK_TO_PERIOD_END\n */\n this.GAP_CAUSED_SEEK_TO_PERIOD_END = 'gapCausedSeekToPeriodEnd';\n\n /**\n * A gap occured in the timeline which requires an internal seek\n * @event MediaPlayerEvents#GAP_CAUSED_INTERNAL_SEEK\n */\n this.GAP_CAUSED_INTERNAL_SEEK = 'gapCausedInternalSeek';\n\n /**\n * Dash events are triggered at their respective start points on the timeline.\n * @event MediaPlayerEvents#EVENT_MODE_ON_START\n */\n this.EVENT_MODE_ON_START = 'eventModeOnStart';\n\n /**\n * Dash events are triggered as soon as they were parsed.\n * @event MediaPlayerEvents#EVENT_MODE_ON_RECEIVE\n */\n this.EVENT_MODE_ON_RECEIVE = 'eventModeOnReceive';\n\n /**\n * Event that is dispatched whenever the player encounters a potential conformance validation that might lead to unexpected/not optimal behavior\n * @event MediaPlayerEvents#CONFORMANCE_VIOLATION\n */\n this.CONFORMANCE_VIOLATION = 'conformanceViolation';\n }\n}\n\nlet mediaPlayerEvents = new MediaPlayerEvents();\nexport default mediaPlayerEvents;\n",
"import MediaPlayer from './MediaPlayer';\n\nfunction MediaPlayerFactory() {\n /**\n * mime-type identifier for any source content to be accepted as a dash manifest by the create() method.\n * @type {string}\n */\n const SUPPORTED_MIME_TYPE = 'application/dash+xml';\n\n let logger;\n\n /**\n * A new MediaPlayer is instantiated for the supplied videoElement and optional source and context. If no context is provided,\n * a default DashContext is used. If no source is provided, the videoElement is interrogated to extract the first source whose\n * type is application/dash+xml.\n * The autoplay property of the videoElement is preserved. Any preload attribute is ignored. This method should be called after the page onLoad event is dispatched.\n * @param {HTMLMediaElement} video\n * @param {HTMLSourceElement} source\n * @param {Object} context\n * @returns {MediaPlayer|null}\n */\n function create(video, source, context) {\n if (!video || !(/^VIDEO$/i).test(video.nodeName)) return null;\n\n if (video._dashjs_player) return video._dashjs_player;\n\n let player;\n let videoID = (video.id || video.name || 'video element');\n\n source = source || [].slice.call(video.querySelectorAll('source')).filter(function (s) {\n return s.type == SUPPORTED_MIME_TYPE;\n })[0];\n if (!source && video.src) {\n source = document.createElement('source');\n source.src = video.src;\n } else if (!source && !video.src) {\n return null;\n }\n\n context = context || {};\n player = MediaPlayer(context).create();\n player.initialize(video, source.src, video.autoplay);\n\n if (!logger) {\n logger = player.getDebug().getLogger();\n }\n logger.debug('Converted ' + videoID + ' to dash.js player and added content: ' + source.src);\n\n // Store a reference to the player on the video element so it can be gotten at for debugging and so we know its\n // already been setup.\n video._dashjs_player = player;\n\n return player;\n }\n\n /**\n * Searches the provided scope for all instances of the indicated selector. If no scope is provided, document is used. If no selector is\n * specified, [data-dashjs-player] is used. The declarative setup also looks for source elements with the type attribute set to 'application/dash+xml'.\n * It then looks for those video elements which have a source element defined with a type matching 'application/dash+xml'.\n * A new MediaPlayer is instantiated for each matching video element and the appropriate source is assigned.\n * The autoplay property of the video element is preserved. Any preload attribute is ignored. This method should be called after the page onLoad event is dispatched.\n * Returns an array holding all the MediaPlayer instances that were added by this method.\n * @param {string} selector - CSS selector\n * @param {Object} scope\n * @returns {Array} an array of MediaPlayer objects\n */\n function createAll(selector, scope) {\n let aPlayers = [];\n selector = selector || '[data-dashjs-player]';\n scope = scope || document;\n let videos = scope.querySelectorAll(selector);\n for (let i = 0; i < videos.length; i++) {\n let player = create(videos[i], null);\n aPlayers.push(player);\n }\n\n let sources = scope.querySelectorAll('source[type=\"' + SUPPORTED_MIME_TYPE + '\"]');\n for (let i = 0; i < sources.length; i++) {\n let video = findVideo(sources[i]);\n let player = create(video, null);\n aPlayers.push(player);\n }\n\n return aPlayers;\n }\n\n function findVideo(el) {\n if ((/^VIDEO$/i).test(el.nodeName)) {\n return el;\n } else {\n return findVideo(el.parentNode);\n }\n }\n\n return {\n create: create,\n createAll: createAll\n };\n}\n\nlet instance = MediaPlayerFactory();\nlet loadInterval;\n\nfunction loadHandler() {\n window.removeEventListener('load', loadHandler);\n instance.createAll();\n}\n\nfunction loadIntervalHandler() {\n if (window.dashjs) {\n window.clearInterval(loadInterval);\n instance.createAll();\n }\n}\n\nlet avoidAutoCreate = typeof window !== 'undefined' && window && window.dashjs && window.dashjs.skipAutoCreate;\n\nif (!avoidAutoCreate && typeof window !== 'undefined' && window && window.addEventListener) {\n if (window.document.readyState === 'complete') {\n if (window.dashjs) {\n instance.createAll();\n } else {\n // If loaded asynchronously, window.readyState may be 'complete' even if dashjs hasn't loaded yet\n loadInterval = window.setInterval(loadIntervalHandler, 500);\n }\n } else {\n window.addEventListener('load', loadHandler);\n }\n}\n\nexport default instance;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Debug from '../core/Debug';\nimport FactoryMaker from '../core/FactoryMaker';\n\n/**\n * This is a sink that is used to temporarily hold onto media chunks before a video element is added.\n * The discharge() function is used to get the chunks out of the PreBuffer for adding to a real SourceBuffer.\n *\n * @class PreBufferSink\n * @ignore\n * @implements FragmentSink\n */\nfunction PreBufferSink(onAppendedCallback) {\n const context = this.context;\n\n let instance,\n logger,\n outstandingInit;\n let chunks = [];\n let onAppended = onAppendedCallback;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function reset() {\n chunks = [];\n outstandingInit = null;\n onAppended = null;\n }\n\n function append(chunk) {\n if (chunk.segmentType !== 'InitializationSegment') { //Init segments are stored in the initCache.\n chunks.push(chunk);\n chunks.sort(function (a, b) { return a.start - b.start; });\n outstandingInit = null;\n } else {//We need to hold an init chunk for when a corresponding media segment is being downloaded when the discharge happens.\n outstandingInit = chunk;\n }\n\n logger.debug('PreBufferSink appended chunk s: ' + chunk.start + '; e: ' + chunk.end);\n if (onAppended) {\n onAppended({\n chunk: chunk\n });\n }\n }\n\n function remove(start, end) {\n chunks = chunks.filter( a => !((isNaN(end) || a.start < end) && (isNaN(start) || a.end > start))); //The opposite of the getChunks predicate.\n }\n\n //Nothing async, nothing to abort.\n function abort() {\n }\n\n function getAllBufferRanges() {\n let ranges = [];\n\n for (let i = 0; i < chunks.length; i++) {\n let chunk = chunks[i];\n if (ranges.length === 0 || chunk.start > ranges[ranges.length - 1].end) {\n ranges.push({ start: chunk.start, end: chunk.end });\n } else {\n ranges[ranges.length - 1].end = chunk.end;\n }\n }\n\n //Implements TimeRanges interface. So acts just like sourceBuffer.buffered.\n const timeranges = {\n start: function (n) {\n return ranges[n].start;\n },\n end: function (n) {\n return ranges[n].end;\n }\n };\n\n Object.defineProperty(timeranges, 'length', {\n get: function () {\n return ranges.length;\n }\n });\n\n return timeranges;\n }\n\n function hasDiscontinuitiesAfter() {\n return false;\n }\n\n function updateTimestampOffset() {\n // Nothing to do\n }\n\n function getBuffer() {\n return this;\n }\n\n /**\n * Return the all chunks in the buffer the lie between times start and end.\n * Because a chunk cannot be split, this returns the full chunk if any part of its time lies in the requested range.\n * Chunks are removed from the buffer when they are discharged.\n * @function PreBufferSink#discharge\n * @param {?Number} start The start time from which to discharge from the buffer. If NaN, it is regarded as unbounded.\n * @param {?Number} end The end time from which to discharge from the buffer. If NaN, it is regarded as unbounded.\n * @returns {Array} The set of chunks from the buffer within the time ranges.\n */\n function discharge(start, end) {\n const result = getChunksAt(start, end);\n if (outstandingInit) {\n result.push(outstandingInit);\n outstandingInit = null;\n }\n\n remove(start, end);\n\n return result;\n }\n\n function getChunksAt(start, end) {\n return chunks.filter( a => ((isNaN(end) || a.start < end) && (isNaN(start) || a.end > start)) );\n }\n\n function waitForUpdateEnd(callback) {\n callback();\n }\n\n instance = {\n getAllBufferRanges: getAllBufferRanges,\n append: append,\n remove: remove,\n abort: abort,\n discharge: discharge,\n reset: reset,\n updateTimestampOffset: updateTimestampOffset,\n hasDiscontinuitiesAfter: hasDiscontinuitiesAfter,\n waitForUpdateEnd: waitForUpdateEnd,\n getBuffer: getBuffer\n };\n\n setup();\n\n return instance;\n}\n\nPreBufferSink.__dashjs_factory_name = 'PreBufferSink';\nconst factory = FactoryMaker.getClassFactory(PreBufferSink);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Debug from '../core/Debug';\nimport DashJSError from './vo/DashJSError';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport FactoryMaker from '../core/FactoryMaker';\nimport TextController from './text/TextController';\nimport Errors from '../core/errors/Errors';\n\nconst MAX_ALLOWED_DISCONTINUITY = 0.1; // 100 milliseconds\n\n/**\n * @class SourceBufferSink\n * @ignore\n * @implements FragmentSink\n */\nfunction SourceBufferSink(mediaSource, mediaInfo, onAppendedCallback, oldBuffer) {\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n type,\n logger,\n buffer,\n isAppendingInProgress,\n intervalId;\n\n let callbacks = [];\n let appendQueue = [];\n let onAppended = onAppendedCallback;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n isAppendingInProgress = false;\n\n type = mediaInfo.type;\n const codec = mediaInfo.codec;\n try {\n // Safari claims to support anything starting 'application/mp4'.\n // it definitely doesn't understand 'application/mp4;codecs=\"stpp\"'\n // - currently no browser does, so check for it and use our own\n // implementation. The same is true for codecs=\"wvtt\".\n if (codec.match(/application\\/mp4;\\s*codecs=\"(stpp|wvtt).*\"/i)) {\n throw new Error('not really supported');\n }\n buffer = oldBuffer ? oldBuffer : mediaSource.addSourceBuffer(codec);\n if (buffer.changeType && oldBuffer) {\n logger.debug('Doing period transition with changeType');\n buffer.changeType(codec);\n }\n\n updateAppendWindow();\n\n const CHECK_INTERVAL = 50;\n // use updateend event if possible\n if (typeof buffer.addEventListener === 'function') {\n try {\n buffer.addEventListener('updateend', updateEndHandler, false);\n buffer.addEventListener('error', errHandler, false);\n buffer.addEventListener('abort', errHandler, false);\n\n } catch (err) {\n // use setInterval to periodically check if updating has been completed\n intervalId = setInterval(checkIsUpdateEnded, CHECK_INTERVAL);\n }\n } else {\n // use setInterval to periodically check if updating has been completed\n intervalId = setInterval(checkIsUpdateEnded, CHECK_INTERVAL);\n }\n } catch (ex) {\n // Note that in the following, the quotes are open to allow for extra text after stpp and wvtt\n if ((mediaInfo.isText) || (codec.indexOf('codecs=\"stpp') !== -1) || (codec.indexOf('codecs=\"wvtt') !== -1)) {\n const textController = TextController(context).getInstance();\n buffer = textController.getTextSourceBuffer();\n } else {\n throw ex;\n }\n }\n }\n\n function getType() {\n return type;\n }\n\n function reset(keepBuffer) {\n if (buffer) {\n if (typeof buffer.removeEventListener === 'function') {\n buffer.removeEventListener('updateend', updateEndHandler, false);\n buffer.removeEventListener('error', errHandler, false);\n buffer.removeEventListener('abort', errHandler, false);\n }\n clearInterval(intervalId);\n callbacks = [];\n if (!keepBuffer) {\n try {\n if (!buffer.getClassName || buffer.getClassName() !== 'TextSourceBuffer') {\n logger.debug(`Removing sourcebuffer from media source`);\n mediaSource.removeSourceBuffer(buffer);\n }\n } catch (e) {\n logger.error('Failed to remove source buffer from media source.');\n }\n buffer = null;\n }\n isAppendingInProgress = false;\n }\n appendQueue = [];\n onAppended = null;\n }\n\n function getBuffer() {\n return buffer;\n }\n\n function getAllBufferRanges() {\n try {\n return buffer.buffered;\n } catch (e) {\n logger.error('getAllBufferRanges exception: ' + e.message);\n return null;\n }\n }\n\n function hasDiscontinuitiesAfter(time) {\n try {\n const ranges = getAllBufferRanges();\n if (ranges && ranges.length > 1) {\n for (let i = 0, len = ranges.length; i < len; i++) {\n if (i > 0) {\n if (time < ranges.start(i) && ranges.start(i) > ranges.end(i - 1) + MAX_ALLOWED_DISCONTINUITY) {\n return true;\n }\n }\n }\n }\n } catch (e) {\n logger.error('hasDiscontinuities exception: ' + e.message);\n }\n return false;\n }\n\n function append(chunk) {\n if (!chunk) {\n onAppended({\n chunk: chunk,\n error: new DashJSError(Errors.APPEND_ERROR_CODE, Errors.APPEND_ERROR_MESSAGE)\n });\n return;\n }\n appendQueue.push(chunk);\n if (!isAppendingInProgress) {\n waitForUpdateEnd(appendNextInQueue.bind(this));\n }\n }\n\n function updateTimestampOffset(MSETimeOffset) {\n if (buffer.timestampOffset !== MSETimeOffset && !isNaN(MSETimeOffset)) {\n waitForUpdateEnd(() => {\n if (MSETimeOffset < 0) {\n MSETimeOffset += 0.001;\n }\n buffer.timestampOffset = MSETimeOffset;\n });\n }\n }\n\n function updateAppendWindow(sInfo) {\n if (!buffer) {\n return;\n }\n waitForUpdateEnd(() => {\n try {\n let appendWindowEnd = mediaSource.duration;\n let appendWindowStart = 0;\n if (sInfo && !isNaN(sInfo.start) && !isNaN(sInfo.duration) && isFinite(sInfo.duration)) {\n appendWindowEnd = sInfo.start + sInfo.duration;\n }\n if (sInfo && !isNaN(sInfo.start)) {\n appendWindowStart = sInfo.start;\n }\n buffer.appendWindowStart = 0;\n buffer.appendWindowEnd = appendWindowEnd;\n buffer.appendWindowStart = appendWindowStart;\n logger.debug(`Updated append window. Set start to ${buffer.appendWindowStart} and end to ${buffer.appendWindowEnd}`);\n } catch (e) {\n logger.warn(`Failed to set append window`);\n }\n });\n }\n\n function remove(start, end, forceRemoval) {\n const sourceBufferSink = this;\n // make sure that the given time range is correct. Otherwise we will get InvalidAccessError\n waitForUpdateEnd(function () {\n try {\n if ((start >= 0) && (end > start) && (forceRemoval || mediaSource.readyState !== 'ended')) {\n buffer.remove(start, end);\n }\n // updating is in progress, we should wait for it to complete before signaling that this operation is done\n waitForUpdateEnd(function () {\n eventBus.trigger(Events.SOURCEBUFFER_REMOVE_COMPLETED, {\n buffer: sourceBufferSink,\n from: start,\n to: end,\n unintended: false\n });\n });\n } catch (err) {\n eventBus.trigger(Events.SOURCEBUFFER_REMOVE_COMPLETED, {\n buffer: sourceBufferSink,\n from: start,\n to: end,\n unintended: false,\n error: new DashJSError(err.code, err.message)\n });\n }\n });\n }\n\n function appendNextInQueue() {\n const sourceBufferSink = this;\n\n if (appendQueue.length > 0) {\n isAppendingInProgress = true;\n const nextChunk = appendQueue[0];\n appendQueue.splice(0, 1);\n let oldRanges = [];\n const afterSuccess = function () {\n // Safari sometimes drops a portion of a buffer after appending. Handle these situations here\n const newRanges = getAllBufferRanges();\n checkBufferGapsAfterAppend(sourceBufferSink, oldRanges, newRanges, nextChunk);\n if (appendQueue.length > 0) {\n appendNextInQueue.call(this);\n } else {\n isAppendingInProgress = false;\n if (onAppended) {\n onAppended({\n chunk: nextChunk\n });\n }\n }\n };\n\n try {\n if (nextChunk.bytes.length === 0) {\n afterSuccess.call(this);\n } else {\n oldRanges = getAllBufferRanges();\n if (buffer.appendBuffer) {\n buffer.appendBuffer(nextChunk.bytes);\n } else {\n buffer.append(nextChunk.bytes, nextChunk);\n }\n // updating is in progress, we should wait for it to complete before signaling that this operation is done\n waitForUpdateEnd(afterSuccess.bind(this));\n }\n } catch (err) {\n logger.fatal('SourceBuffer append failed \"' + err + '\"');\n if (appendQueue.length > 0) {\n appendNextInQueue();\n } else {\n isAppendingInProgress = false;\n }\n\n if (onAppended) {\n onAppended({\n chunk: nextChunk,\n error: new DashJSError(err.code, err.message)\n });\n }\n }\n }\n }\n\n function checkBufferGapsAfterAppend(buffer, oldRanges, newRanges, chunk) {\n if (oldRanges && oldRanges.length > 0 && oldRanges.length < newRanges.length &&\n isChunkAlignedWithRange(oldRanges, chunk)) {\n // A split in the range was created while appending\n eventBus.trigger(Events.SOURCEBUFFER_REMOVE_COMPLETED, {\n buffer: buffer,\n from: newRanges.end(newRanges.length - 2),\n to: newRanges.start(newRanges.length - 1),\n unintended: true\n });\n }\n }\n\n function isChunkAlignedWithRange(oldRanges, chunk) {\n for (let i = 0; i < oldRanges.length; i++) {\n const start = Math.round(oldRanges.start(i));\n const end = Math.round(oldRanges.end(i));\n if (end === chunk.start || start === chunk.end || (chunk.start >= start && chunk.end <= end)) {\n return true;\n }\n }\n return false;\n }\n\n function abort() {\n try {\n if (mediaSource.readyState === 'open') {\n buffer.abort();\n } else if (buffer.setTextTrack && mediaSource.readyState === 'ended') {\n buffer.abort(); //The cues need to be removed from the TextSourceBuffer via a call to abort()\n }\n } catch (ex) {\n logger.error('SourceBuffer append abort failed: \"' + ex + '\"');\n }\n appendQueue = [];\n }\n\n function executeCallback() {\n if (callbacks.length > 0) {\n const cb = callbacks.shift();\n if (buffer.updating) {\n waitForUpdateEnd(cb);\n } else {\n cb();\n // Try to execute next callback if still not updating\n executeCallback();\n }\n }\n }\n\n function checkIsUpdateEnded() {\n // if updating is still in progress do nothing and wait for the next check again.\n if (buffer.updating) return;\n // updating is completed, now we can stop checking and resolve the promise\n executeCallback();\n }\n\n function updateEndHandler() {\n if (buffer.updating) return;\n\n executeCallback();\n }\n\n function errHandler() {\n logger.error('SourceBufferSink error');\n }\n\n function waitForUpdateEnd(callback) {\n callbacks.push(callback);\n\n if (!buffer.updating) {\n executeCallback();\n }\n }\n\n instance = {\n getType: getType,\n getAllBufferRanges: getAllBufferRanges,\n getBuffer: getBuffer,\n append: append,\n remove: remove,\n abort: abort,\n reset: reset,\n updateTimestampOffset: updateTimestampOffset,\n hasDiscontinuitiesAfter: hasDiscontinuitiesAfter,\n waitForUpdateEnd: waitForUpdateEnd,\n updateAppendWindow\n };\n\n setup();\n\n return instance;\n}\n\nSourceBufferSink.__dashjs_factory_name = 'SourceBufferSink';\nconst factory = FactoryMaker.getClassFactory(SourceBufferSink);\nexport default factory;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport StreamProcessor from './StreamProcessor';\nimport FragmentController from './controllers/FragmentController';\nimport ThumbnailController from './thumbnail/ThumbnailController';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport Debug from '../core/Debug';\nimport Errors from '../core/errors/Errors';\nimport FactoryMaker from '../core/FactoryMaker';\nimport DashJSError from './vo/DashJSError';\nimport BoxParser from './utils/BoxParser';\nimport URLUtils from './utils/URLUtils';\n\nfunction Stream(config) {\n\n config = config || {};\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n const manifestModel = config.manifestModel;\n const mediaPlayerModel = config.mediaPlayerModel;\n const manifestUpdater = config.manifestUpdater;\n const adapter = config.adapter;\n const capabilities = config.capabilities;\n const errHandler = config.errHandler;\n const timelineConverter = config.timelineConverter;\n const dashMetrics = config.dashMetrics;\n const abrController = config.abrController;\n const playbackController = config.playbackController;\n const eventController = config.eventController;\n const mediaController = config.mediaController;\n const textController = config.textController;\n const protectionController = config.protectionController;\n const videoModel = config.videoModel;\n const settings = config.settings;\n let streamInfo = config.streamInfo;\n\n let instance,\n logger,\n streamProcessors,\n isStreamInitialized,\n isStreamActivated,\n isMediaInitialized,\n hasVideoTrack,\n hasAudioTrack,\n updateError,\n isUpdating,\n fragmentController,\n thumbnailController,\n preloaded,\n boxParser,\n preloadingScheduled,\n debug,\n isEndedEventSignaled,\n trackChangedEvent;\n\n const codecCompatibilityTable = [\n {\n 'codec': 'avc1',\n 'compatibleCodecs': ['avc3']\n },\n {\n 'codec': 'avc3',\n 'compatibleCodecs': ['avc1']\n }\n ];\n\n function setup() {\n debug = Debug(context).getInstance();\n logger = debug.getLogger(instance);\n resetInitialSettings();\n\n boxParser = BoxParser(context).getInstance();\n\n fragmentController = FragmentController(context).create({\n streamInfo: streamInfo,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n errHandler: errHandler,\n settings: settings,\n boxParser: boxParser,\n dashConstants: DashConstants,\n urlUtils: urlUtils\n });\n }\n\n function initialize() {\n registerEvents();\n registerProtectionEvents();\n eventBus.trigger(Events.STREAM_UPDATED, { streamInfo: streamInfo });\n }\n\n function registerEvents() {\n eventBus.on(Events.BUFFERING_COMPLETED, onBufferingCompleted, instance);\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.on(Events.INBAND_EVENTS, onInbandEvents, instance);\n }\n\n function unRegisterEvents() {\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.off(Events.BUFFERING_COMPLETED, onBufferingCompleted, instance);\n eventBus.off(Events.INBAND_EVENTS, onInbandEvents, instance);\n }\n\n function registerProtectionEvents() {\n if (protectionController) {\n eventBus.on(Events.KEY_ERROR, onProtectionError, instance);\n eventBus.on(Events.SERVER_CERTIFICATE_UPDATED, onProtectionError, instance);\n eventBus.on(Events.LICENSE_REQUEST_COMPLETE, onProtectionError, instance);\n eventBus.on(Events.KEY_SYSTEM_SELECTED, onProtectionError, instance);\n eventBus.on(Events.KEY_SESSION_CREATED, onProtectionError, instance);\n eventBus.on(Events.KEY_STATUSES_CHANGED, onProtectionError, instance);\n }\n }\n\n function unRegisterProtectionEvents() {\n if (protectionController) {\n eventBus.off(Events.KEY_ERROR, onProtectionError, instance);\n eventBus.off(Events.SERVER_CERTIFICATE_UPDATED, onProtectionError, instance);\n eventBus.off(Events.LICENSE_REQUEST_COMPLETE, onProtectionError, instance);\n eventBus.off(Events.KEY_SYSTEM_SELECTED, onProtectionError, instance);\n eventBus.off(Events.KEY_SESSION_CREATED, onProtectionError, instance);\n eventBus.off(Events.KEY_STATUSES_CHANGED, onProtectionError, instance);\n }\n }\n\n function getStreamId() {\n return streamInfo ? streamInfo.id : null;\n }\n\n /**\n * Activates Stream by re-initializing some of its components\n * @param {MediaSource} mediaSource\n * @memberof Stream#\n * @param {SourceBuffer} previousBuffers\n */\n function activate(mediaSource, previousBuffers) {\n if (!isStreamActivated) {\n let result;\n eventBus.on(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, instance);\n if (!getPreloaded()) {\n result = initializeMedia(mediaSource, previousBuffers);\n } else {\n initializeAfterPreload();\n result = previousBuffers;\n }\n isStreamActivated = true;\n return result;\n }\n return previousBuffers;\n }\n\n /**\n * Partially resets some of the Stream elements\n * @memberof Stream#\n * @param {boolean} keepBuffers\n */\n function deactivate(keepBuffers) {\n let ln = streamProcessors ? streamProcessors.length : 0;\n const errored = false;\n for (let i = 0; i < ln; i++) {\n let fragmentModel = streamProcessors[i].getFragmentModel();\n fragmentModel.removeExecutedRequestsBeforeTime(getStartTime() + getDuration());\n streamProcessors[i].reset(errored, keepBuffers);\n }\n streamProcessors = [];\n isStreamActivated = false;\n isMediaInitialized = false;\n setPreloaded(false);\n eventBus.off(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, instance);\n }\n\n function isActive() {\n return isStreamActivated;\n }\n\n function setMediaSource(mediaSource) {\n for (let i = 0; i < streamProcessors.length;) {\n if (isMediaSupported(streamProcessors[i].getMediaInfo())) {\n streamProcessors[i].setMediaSource(mediaSource);\n i++;\n } else {\n streamProcessors[i].reset();\n streamProcessors.splice(i, 1);\n }\n }\n\n for (let i = 0; i < streamProcessors.length; i++) {\n //Adding of new tracks to a stream processor isn't guaranteed by the spec after the METADATA_LOADED state\n //so do this after the buffers are created above.\n streamProcessors[i].dischargePreBuffer();\n }\n\n if (streamProcessors.length === 0) {\n const msg = 'No streams to play.';\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, msg + 'nostreams', manifestModel.getValue()));\n logger.fatal(msg);\n }\n }\n\n function resetInitialSettings() {\n deactivate();\n isStreamInitialized = false;\n hasVideoTrack = false;\n hasAudioTrack = false;\n updateError = {};\n isUpdating = false;\n preloadingScheduled = false;\n isEndedEventSignaled = false;\n }\n\n function reset() {\n\n if (playbackController) {\n playbackController.pause();\n }\n\n if (fragmentController) {\n fragmentController.reset();\n fragmentController = null;\n }\n\n streamInfo = null;\n\n resetInitialSettings();\n\n unRegisterEvents();\n\n unRegisterProtectionEvents();\n\n setPreloaded(false);\n }\n\n function getDuration() {\n return streamInfo ? streamInfo.duration : NaN;\n }\n\n function getIsEndedEventSignaled() {\n return isEndedEventSignaled;\n }\n\n function setIsEndedEventSignaled(value) {\n isEndedEventSignaled = value;\n }\n\n function getStartTime() {\n return streamInfo ? streamInfo.start : NaN;\n }\n\n function getPreloadingScheduled() {\n return preloadingScheduled;\n }\n\n function setPreloadingScheduled(value) {\n preloadingScheduled = value;\n }\n\n function getLiveStartTime() {\n if (!streamInfo.manifestInfo.isDynamic) return NaN;\n // Get live start time of the video stream (1st in array of streams)\n // or audio if no video stream\n for (let i = 0; i < streamProcessors.length; i++) {\n if (streamProcessors[i].getType() === Constants.AUDIO ||\n streamProcessors[i].getType() === Constants.VIDEO) {\n return streamProcessors[i].getLiveStartTime();\n }\n }\n return NaN;\n }\n\n function getId() {\n return streamInfo ? streamInfo.id : null;\n }\n\n function getStreamInfo() {\n return streamInfo;\n }\n\n function getHasAudioTrack() {\n return hasAudioTrack;\n }\n\n function getHasVideoTrack() {\n return hasVideoTrack;\n }\n\n function getThumbnailController() {\n return thumbnailController;\n }\n\n function checkConfig() {\n if (!videoModel || !abrController || !abrController.hasOwnProperty('getBitrateList') || !adapter || !adapter.hasOwnProperty('getAllMediaInfoForType') || !adapter.hasOwnProperty('getEventsFor')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n /**\n * @param {string} type\n * @returns {Array}\n * @memberof Stream#\n */\n function getBitrateListFor(type) {\n checkConfig();\n if (type === Constants.IMAGE) {\n if (!thumbnailController) {\n return [];\n }\n return thumbnailController.getBitrateList();\n }\n const mediaInfo = getMediaInfo(type);\n return abrController.getBitrateList(mediaInfo);\n }\n\n function onProtectionError(event) {\n if (event.error) {\n errHandler.error(event.error);\n logger.fatal(event.error.message);\n reset();\n }\n }\n\n function isMediaSupported(mediaInfo) {\n const type = mediaInfo ? mediaInfo.type : null;\n let codec,\n msg;\n\n if (type === Constants.MUXED) {\n msg = 'Multiplexed representations are intentionally not supported, as they are not compliant with the DASH-AVC/264 guidelines';\n logger.fatal(msg);\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_MULTIPLEXED_CODE, msg, manifestModel.getValue()));\n return false;\n }\n\n if (type === Constants.TEXT || type === Constants.FRAGMENTED_TEXT || type === Constants.EMBEDDED_TEXT || type === Constants.IMAGE) {\n return true;\n }\n codec = mediaInfo.codec;\n logger.debug(type + ' codec: ' + codec);\n\n if (!!mediaInfo.contentProtection && !capabilities.supportsEncryptedMedia()) {\n errHandler.error(new DashJSError(Errors.CAPABILITY_MEDIAKEYS_ERROR_CODE, Errors.CAPABILITY_MEDIAKEYS_ERROR_MESSAGE));\n } else if (!capabilities.supportsCodec(codec)) {\n msg = type + 'Codec (' + codec + ') is not supported.';\n logger.error(msg);\n return false;\n }\n\n return true;\n }\n\n function onCurrentTrackChanged(e) {\n if (!streamInfo || e.newMediaInfo.streamInfo.id !== streamInfo.id) return;\n let mediaInfo = e.newMediaInfo;\n let manifest = manifestModel.getValue();\n\n adapter.setCurrentMediaInfo(streamInfo.id, mediaInfo.type, mediaInfo);\n\n let processor = getProcessorForMediaInfo(mediaInfo);\n if (!processor) return;\n\n let currentTime = playbackController.getTime();\n logger.info('Stream - Process track changed at current time ' + currentTime);\n\n logger.debug('Stream - Update stream controller');\n if (manifest.refreshManifestOnSwitchTrack) { // Applies only for MSS streams\n logger.debug('Stream - Refreshing manifest for switch track');\n trackChangedEvent = e;\n manifestUpdater.refreshManifest();\n } else {\n processor.selectMediaInfo(mediaInfo);\n if (mediaInfo.type !== Constants.FRAGMENTED_TEXT) {\n abrController.updateTopQualityIndex(mediaInfo);\n processor.switchTrackAsked();\n processor.getFragmentModel().abortRequests();\n } else {\n processor.getScheduleController().setSeekTarget(currentTime);\n processor.setBufferingTime(currentTime);\n processor.resetIndexHandler();\n }\n }\n }\n\n function createStreamProcessor(mediaInfo, allMediaForType, mediaSource, optionalSettings) {\n\n let fragmentModel = fragmentController.getModel(mediaInfo ? mediaInfo.type : null);\n\n let streamProcessor = StreamProcessor(context).create({\n streamInfo: streamInfo,\n type: mediaInfo ? mediaInfo.type : null,\n mimeType: mediaInfo ? mediaInfo.mimeType : null,\n timelineConverter: timelineConverter,\n adapter: adapter,\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n fragmentModel: fragmentModel,\n dashMetrics: config.dashMetrics,\n baseURLController: config.baseURLController,\n abrController: abrController,\n playbackController: playbackController,\n mediaController: mediaController,\n textController: textController,\n errHandler: errHandler,\n settings: settings,\n boxParser: boxParser\n });\n\n streamProcessor.initialize(mediaSource, hasVideoTrack);\n abrController.updateTopQualityIndex(mediaInfo);\n\n if (optionalSettings) {\n streamProcessor.setBuffer(optionalSettings.buffer);\n streamProcessor.setBufferingTime(optionalSettings.currentTime);\n streamProcessors[optionalSettings.replaceIdx] = streamProcessor;\n } else {\n streamProcessors.push(streamProcessor);\n }\n\n if (optionalSettings && optionalSettings.ignoreMediaInfo) {\n return;\n }\n\n if (mediaInfo && (mediaInfo.type === Constants.TEXT || mediaInfo.type === Constants.FRAGMENTED_TEXT)) {\n let idx;\n for (let i = 0; i < allMediaForType.length; i++) {\n if (allMediaForType[i].index === mediaInfo.index) {\n idx = i;\n }\n streamProcessor.addMediaInfo(allMediaForType[i]); //creates text tracks for all adaptations in one stream processor\n }\n streamProcessor.selectMediaInfo(allMediaForType[idx]); //sets the initial media info\n } else {\n streamProcessor.addMediaInfo(mediaInfo, true);\n }\n }\n\n function initializeMediaForType(type, mediaSource) {\n const allMediaForType = adapter.getAllMediaInfoForType(streamInfo, type);\n\n let mediaInfo = null;\n let initialMediaInfo;\n\n if (!allMediaForType || allMediaForType.length === 0) {\n logger.info('No ' + type + ' data.');\n return;\n }\n\n if (type === Constants.VIDEO) {\n hasVideoTrack = true;\n }\n\n if (type === Constants.AUDIO) {\n hasAudioTrack = true;\n }\n\n for (let i = 0, ln = allMediaForType.length; i < ln; i++) {\n mediaInfo = allMediaForType[i];\n\n if (type === Constants.EMBEDDED_TEXT) {\n textController.addEmbeddedTrack(mediaInfo);\n } else {\n if (!isMediaSupported(mediaInfo)) continue;\n mediaController.addTrack(mediaInfo);\n }\n }\n\n if (type === Constants.EMBEDDED_TEXT || mediaController.getTracksFor(type, streamInfo).length === 0) {\n return;\n }\n\n if (type === Constants.IMAGE) {\n thumbnailController = ThumbnailController(context).create({\n streamInfo: streamInfo,\n adapter: adapter,\n baseURLController: config.baseURLController,\n timelineConverter: config.timelineConverter,\n debug: debug,\n eventBus: eventBus,\n events: Events,\n dashConstants: DashConstants\n });\n return;\n }\n\n\n mediaController.checkInitialMediaSettingsForType(type, streamInfo);\n initialMediaInfo = mediaController.getCurrentTrackFor(type, streamInfo);\n\n eventBus.trigger(Events.STREAM_INITIALIZING, {\n streamInfo: streamInfo,\n mediaInfo: mediaInfo\n });\n\n // TODO : How to tell index handler live/duration?\n // TODO : Pass to controller and then pass to each method on handler?\n\n createStreamProcessor(initialMediaInfo, allMediaForType, mediaSource);\n }\n\n function addInlineEvents() {\n if (eventController) {\n const events = adapter.getEventsFor(streamInfo);\n eventController.addInlineEvents(events);\n }\n }\n\n function addInbandEvents(events) {\n if (eventController) {\n eventController.addInbandEvents(events);\n }\n }\n\n function initializeMedia(mediaSource, previousBuffers) {\n checkConfig();\n let element = videoModel.getElement();\n\n addInlineEvents();\n\n isUpdating = true;\n\n filterCodecs(Constants.VIDEO);\n filterCodecs(Constants.AUDIO);\n\n if (!element || (element && (/^VIDEO$/i).test(element.nodeName))) {\n initializeMediaForType(Constants.VIDEO, mediaSource);\n }\n initializeMediaForType(Constants.AUDIO, mediaSource);\n initializeMediaForType(Constants.TEXT, mediaSource);\n initializeMediaForType(Constants.FRAGMENTED_TEXT, mediaSource);\n initializeMediaForType(Constants.EMBEDDED_TEXT, mediaSource);\n initializeMediaForType(Constants.MUXED, mediaSource);\n initializeMediaForType(Constants.IMAGE, mediaSource);\n\n //TODO. Consider initialization of TextSourceBuffer here if embeddedText, but no sideloadedText.\n const buffers = createBuffers(previousBuffers);\n\n isMediaInitialized = true;\n isUpdating = false;\n\n if (streamProcessors.length === 0) {\n const msg = 'No streams to play.';\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, msg, manifestModel.getValue()));\n logger.fatal(msg);\n } else {\n checkIfInitializationCompleted();\n }\n\n return buffers;\n }\n\n function initializeAfterPreload() {\n isUpdating = true;\n checkConfig();\n filterCodecs(Constants.VIDEO);\n filterCodecs(Constants.AUDIO);\n\n isMediaInitialized = true;\n isUpdating = false;\n if (streamProcessors.length === 0) {\n const msg = 'No streams to play.';\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, msg, manifestModel.getValue()));\n logger.debug(msg);\n } else {\n checkIfInitializationCompleted();\n }\n }\n\n function filterCodecs(type) {\n const realAdaptation = adapter.getAdaptationForType(streamInfo ? streamInfo.index : null, type, streamInfo);\n\n if (!realAdaptation || !Array.isArray(realAdaptation.Representation_asArray)) return;\n\n // Filter codecs that are not supported\n realAdaptation.Representation_asArray = realAdaptation.Representation_asArray.filter((_, i) => {\n // keep at least codec from lowest representation\n if (i === 0) return true;\n\n const codec = adapter.getCodec(realAdaptation, i, true);\n if (!capabilities.supportsCodec(codec)) {\n logger.error('[Stream] codec not supported: ' + codec);\n return false;\n }\n return true;\n });\n }\n\n function checkIfInitializationCompleted() {\n const ln = streamProcessors.length;\n const hasError = !!updateError.audio || !!updateError.video;\n let error = hasError ? new DashJSError(Errors.DATA_UPDATE_FAILED_ERROR_CODE, Errors.DATA_UPDATE_FAILED_ERROR_MESSAGE) : null;\n\n for (let i = 0; i < ln; i++) {\n if (streamProcessors[i].isUpdating() || isUpdating) {\n return;\n }\n }\n\n if (!isMediaInitialized) {\n return;\n }\n\n if (protectionController) {\n // Need to check if streamProcessors exists because streamProcessors\n // could be cleared in case an error is detected while initializing DRM keysystem\n for (let i = 0; i < ln && streamProcessors[i]; i++) {\n if (streamProcessors[i].getType() === Constants.AUDIO ||\n streamProcessors[i].getType() === Constants.VIDEO ||\n streamProcessors[i].getType() === Constants.FRAGMENTED_TEXT) {\n let mediaInfo = streamProcessors[i].getMediaInfo();\n if (mediaInfo) {\n protectionController.initializeForMedia(mediaInfo);\n }\n }\n }\n }\n\n if (error) {\n errHandler.error(error);\n } else if (!isStreamInitialized) {\n isStreamInitialized = true;\n timelineConverter.setTimeSyncCompleted(true);\n\n eventBus.trigger(Events.STREAM_INITIALIZED, {\n streamInfo: streamInfo,\n liveStartTime: !preloaded ? getLiveStartTime() : NaN\n });\n }\n\n // (Re)start ScheduleController:\n // - in case stream initialization has been completed after 'play' event (case for SegmentBase streams)\n // - in case stream is complete but a track switch has been requested\n for (let i = 0; i < ln && streamProcessors[i]; i++) {\n streamProcessors[i].getScheduleController().start();\n }\n }\n\n function getMediaInfo(type) {\n let streamProcessor = null;\n\n for (let i = 0; i < streamProcessors.length; i++) {\n streamProcessor = streamProcessors[i];\n\n if (streamProcessor.getType() === type) {\n return streamProcessor.getMediaInfo();\n }\n }\n\n return null;\n }\n\n function createBuffers(previousBuffers) {\n const buffers = {};\n for (let i = 0, ln = streamProcessors.length; i < ln; i++) {\n const buffer = streamProcessors[i].createBuffer(previousBuffers);\n if (buffer) {\n buffers[streamProcessors[i].getType()] = buffer.getBuffer();\n }\n }\n return buffers;\n }\n\n function onBufferingCompleted() {\n let processors = getProcessors();\n const ln = processors.length;\n\n if (ln === 0) {\n logger.warn('onBufferingCompleted - can\\'t trigger STREAM_BUFFERING_COMPLETED because no streamProcessor is defined');\n return;\n }\n\n // if there is at least one buffer controller that has not completed buffering yet do nothing\n for (let i = 0; i < ln; i++) {\n //if audio or video buffer is not buffering completed state, do not send STREAM_BUFFERING_COMPLETED\n if (!processors[i].isBufferingCompleted() && (processors[i].getType() === Constants.AUDIO || processors[i].getType() === Constants.VIDEO)) {\n logger.warn('onBufferingCompleted - One streamProcessor has finished but', processors[i].getType(), 'one is not buffering completed');\n return;\n }\n }\n\n logger.debug('onBufferingCompleted - trigger STREAM_BUFFERING_COMPLETED');\n eventBus.trigger(Events.STREAM_BUFFERING_COMPLETED, { streamInfo: streamInfo });\n }\n\n function onDataUpdateCompleted(e) {\n updateError[e.mediaType] = e.error;\n checkIfInitializationCompleted();\n }\n\n function onInbandEvents(e) {\n addInbandEvents(e.events);\n }\n\n function getProcessorForMediaInfo(mediaInfo) {\n if (!mediaInfo) {\n return null;\n }\n\n let processors = getProcessors();\n\n return processors.filter(function (processor) {\n return (processor.getType() === mediaInfo.type);\n })[0];\n }\n\n function getProcessors() {\n let arr = [];\n\n let type,\n streamProcessor;\n\n for (let i = 0; i < streamProcessors.length; i++) {\n streamProcessor = streamProcessors[i];\n type = streamProcessor.getType();\n\n if (type === Constants.AUDIO || type === Constants.VIDEO || type === Constants.FRAGMENTED_TEXT || type === Constants.TEXT) {\n arr.push(streamProcessor);\n }\n }\n\n return arr;\n }\n\n function updateData(updatedStreamInfo) {\n logger.info('Manifest updated... updating data system wide.');\n\n isStreamActivated = false;\n isUpdating = true;\n streamInfo = updatedStreamInfo;\n\n eventBus.trigger(Events.STREAM_UPDATED, { streamInfo: streamInfo });\n\n if (eventController) {\n addInlineEvents();\n }\n\n filterCodecs(Constants.VIDEO);\n filterCodecs(Constants.AUDIO);\n\n for (let i = 0, ln = streamProcessors.length; i < ln; i++) {\n let streamProcessor = streamProcessors[i];\n streamProcessor.updateStreamInfo(streamInfo);\n let mediaInfo = adapter.getMediaInfoForType(streamInfo, streamProcessor.getType());\n // Check if AdaptationSet has not been removed in MPD update\n if (mediaInfo) {\n abrController.updateTopQualityIndex(mediaInfo);\n streamProcessor.addMediaInfo(mediaInfo, true);\n }\n }\n\n if (trackChangedEvent) {\n let mediaInfo = trackChangedEvent.newMediaInfo;\n if (mediaInfo.type !== Constants.FRAGMENTED_TEXT) {\n let processor = getProcessorForMediaInfo(trackChangedEvent.oldMediaInfo);\n if (!processor) return;\n processor.switchTrackAsked();\n trackChangedEvent = undefined;\n }\n }\n\n isUpdating = false;\n checkIfInitializationCompleted();\n }\n\n function isMediaCodecCompatible(newStream, previousStream = null) {\n return compareCodecs(newStream, Constants.VIDEO, previousStream) && compareCodecs(newStream, Constants.AUDIO, previousStream);\n }\n\n function isProtectionCompatible(stream, previousStream = null) {\n return compareProtectionConfig(stream, Constants.VIDEO, previousStream) && compareProtectionConfig(stream, Constants.AUDIO, previousStream);\n }\n\n function compareProtectionConfig(stream, type, previousStream = null) {\n if (!stream) {\n return false;\n }\n const newStreamInfo = stream.getStreamInfo();\n const currentStreamInfo = previousStream ? previousStream.getStreamInfo() : getStreamInfo();\n\n if (!newStreamInfo || !currentStreamInfo) {\n return false;\n }\n\n const newAdaptation = adapter.getAdaptationForType(newStreamInfo.index, type, newStreamInfo);\n const currentAdaptation = adapter.getAdaptationForType(currentStreamInfo.index, type, currentStreamInfo);\n\n if (!newAdaptation || !currentAdaptation) {\n // If there is no adaptation for neither the old or the new stream they're compatible\n return !newAdaptation && !currentAdaptation;\n }\n\n // If the current period is unencrypted and the upcoming one is encrypted we need to reset sourcebuffers.\n return !(!isAdaptationDrmProtected(currentAdaptation) && isAdaptationDrmProtected(newAdaptation));\n }\n\n function isAdaptationDrmProtected(adaptation) {\n\n if (!adaptation) {\n // If there is no adaptation for neither the old or the new stream they're compatible\n return false;\n }\n\n // If the current period is unencrypted and the upcoming one is encrypted we need to reset sourcebuffers.\n return !!(adaptation.ContentProtection || (adaptation.Representation && adaptation.Representation.length > 0 && adaptation.Representation[0].ContentProtection));\n }\n\n function compareCodecs(newStream, type, previousStream = null) {\n if (!newStream || !newStream.hasOwnProperty('getStreamInfo')) {\n return false;\n }\n const newStreamInfo = newStream.getStreamInfo();\n const currentStreamInfo = previousStream ? previousStream.getStreamInfo() : getStreamInfo();\n\n if (!newStreamInfo || !currentStreamInfo) {\n return false;\n }\n\n const newAdaptation = adapter.getAdaptationForType(newStreamInfo.index, type, newStreamInfo);\n const currentAdaptation = adapter.getAdaptationForType(currentStreamInfo.index, type, currentStreamInfo);\n\n if (!newAdaptation || !currentAdaptation) {\n // If there is no adaptation for neither the old or the new stream they're compatible\n return !newAdaptation && !currentAdaptation;\n }\n\n const sameMimeType = newAdaptation && currentAdaptation && newAdaptation.mimeType === currentAdaptation.mimeType;\n const oldCodecs = currentAdaptation.Representation_asArray.map((representation) => {\n return representation.codecs;\n });\n\n const newCodecs = newAdaptation.Representation_asArray.map((representation) => {\n return representation.codecs;\n });\n\n const codecMatch = newCodecs.some((newCodec) => {\n return oldCodecs.indexOf(newCodec) > -1;\n });\n\n const partialCodecMatch = newCodecs.some((newCodec) => oldCodecs.some((oldCodec) => codecRootCompatibleWithCodec(oldCodec, newCodec)));\n return codecMatch || (partialCodecMatch && sameMimeType);\n }\n\n // Check if the root of the old codec is the same as the new one, or if it's declared as compatible in the compat table\n function codecRootCompatibleWithCodec(codec1, codec2) {\n const codecRoot = codec1.split('.')[0];\n const rootCompatible = codec2.indexOf(codecRoot) === 0;\n let compatTableCodec;\n for (let i = 0; i < codecCompatibilityTable.length; i++) {\n if (codecCompatibilityTable[i].codec === codecRoot) {\n compatTableCodec = codecCompatibilityTable[i];\n break;\n }\n }\n if (compatTableCodec) {\n return rootCompatible || compatTableCodec.compatibleCodecs.some((compatibleCodec) => codec2.indexOf(compatibleCodec) === 0);\n }\n return rootCompatible;\n }\n\n function setPreloaded(value) {\n preloaded = value;\n }\n\n function getPreloaded() {\n return preloaded;\n }\n\n function preload(mediaSource, previousBuffers) {\n if (!getPreloaded()) {\n addInlineEvents();\n\n initializeMediaForType(Constants.VIDEO, mediaSource);\n initializeMediaForType(Constants.AUDIO, mediaSource);\n initializeMediaForType(Constants.TEXT, mediaSource);\n initializeMediaForType(Constants.FRAGMENTED_TEXT, mediaSource);\n initializeMediaForType(Constants.EMBEDDED_TEXT, mediaSource);\n initializeMediaForType(Constants.MUXED, mediaSource);\n initializeMediaForType(Constants.IMAGE, mediaSource);\n\n createBuffers(previousBuffers);\n\n eventBus.on(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, instance);\n for (let i = 0; i < streamProcessors.length && streamProcessors[i]; i++) {\n streamProcessors[i].getScheduleController().start();\n }\n\n setPreloaded(true);\n }\n }\n\n\n instance = {\n initialize: initialize,\n getStreamId: getStreamId,\n activate: activate,\n deactivate: deactivate,\n isActive: isActive,\n getDuration: getDuration,\n getStartTime: getStartTime,\n getId: getId,\n getStreamInfo: getStreamInfo,\n getHasAudioTrack: getHasAudioTrack,\n getHasVideoTrack: getHasVideoTrack,\n preload: preload,\n getThumbnailController: getThumbnailController,\n getBitrateListFor: getBitrateListFor,\n updateData: updateData,\n reset: reset,\n getProcessors: getProcessors,\n setMediaSource: setMediaSource,\n isMediaCodecCompatible: isMediaCodecCompatible,\n isProtectionCompatible: isProtectionCompatible,\n getPreloaded: getPreloaded,\n getPreloadingScheduled,\n setPreloadingScheduled,\n getIsEndedEventSignaled,\n setIsEndedEventSignaled\n };\n\n setup();\n return instance;\n}\n\nStream.__dashjs_factory_name = 'Stream';\nexport default FactoryMaker.getClassFactory(Stream);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport MetricsConstants from './constants/MetricsConstants';\nimport FragmentModel from './models/FragmentModel';\nimport BufferController from './controllers/BufferController';\nimport TextBufferController from './text/TextBufferController';\nimport ScheduleController from './controllers/ScheduleController';\nimport RepresentationController from '../dash/controllers/RepresentationController';\nimport LiveEdgeFinder from './utils/LiveEdgeFinder';\nimport FactoryMaker from '../core/FactoryMaker';\nimport {checkInteger} from './utils/SupervisorTools';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport DashHandler from '../dash/DashHandler';\nimport Errors from '../core/errors/Errors';\nimport DashJSError from './vo/DashJSError';\nimport Debug from '../core/Debug';\nimport RequestModifier from './utils/RequestModifier';\nimport URLUtils from '../streaming/utils/URLUtils';\nimport BoxParser from './utils/BoxParser';\nimport FragmentRequest from './vo/FragmentRequest';\nimport {PlayListTrace} from './vo/metrics/PlayList';\n\nfunction StreamProcessor(config) {\n\n config = config || {};\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n\n let streamInfo = config.streamInfo;\n let type = config.type;\n let errHandler = config.errHandler;\n let mimeType = config.mimeType;\n let timelineConverter = config.timelineConverter;\n let adapter = config.adapter;\n let manifestModel = config.manifestModel;\n let mediaPlayerModel = config.mediaPlayerModel;\n let fragmentModel = config.fragmentModel;\n let abrController = config.abrController;\n let playbackController = config.playbackController;\n let mediaController = config.mediaController;\n let textController = config.textController;\n let dashMetrics = config.dashMetrics;\n let settings = config.settings;\n let boxParser = config.boxParser;\n\n let instance,\n logger,\n isDynamic,\n mediaInfo,\n mediaInfoArr,\n bufferController,\n scheduleController,\n representationController,\n liveEdgeFinder,\n indexHandler,\n bufferingTime,\n bufferPruned;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n resetInitialSettings();\n\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance, { priority: EventBus.EVENT_PRIORITY_HIGH }); // High priority to be notified before Stream\n eventBus.on(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, instance);\n eventBus.on(Events.INIT_FRAGMENT_NEEDED, onInitFragmentNeeded, instance);\n eventBus.on(Events.MEDIA_FRAGMENT_NEEDED, onMediaFragmentNeeded, instance);\n eventBus.on(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, instance);\n eventBus.on(Events.BUFFER_LEVEL_UPDATED, onBufferLevelUpdated, instance);\n eventBus.on(Events.BUFFER_LEVEL_STATE_CHANGED, onBufferLevelStateChanged, instance);\n eventBus.on(Events.BUFFER_CLEARED, onBufferCleared, instance);\n eventBus.on(Events.SEEK_TARGET, onSeekTarget, instance);\n }\n\n function initialize(mediaSource, hasVideoTrack) {\n indexHandler = DashHandler(context).create({\n streamInfo: streamInfo,\n type: type,\n timelineConverter: timelineConverter,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n baseURLController: config.baseURLController,\n errHandler: errHandler,\n settings: settings,\n boxParser: boxParser,\n events: Events,\n eventBus: eventBus,\n errors: Errors,\n debug: Debug(context).getInstance(),\n requestModifier: RequestModifier(context).getInstance(),\n dashConstants: DashConstants,\n constants: Constants,\n urlUtils: URLUtils(context).getInstance()\n });\n\n // Create live edge finder for dynamic streams\n isDynamic = streamInfo.manifestInfo.isDynamic;\n if (isDynamic) {\n liveEdgeFinder = LiveEdgeFinder(context).create({\n timelineConverter: timelineConverter\n });\n }\n\n // Create/initialize controllers\n indexHandler.initialize(isDynamic);\n abrController.registerStreamType(type, instance);\n\n representationController = RepresentationController(context).create({\n streamInfo: streamInfo,\n type: type,\n abrController: abrController,\n dashMetrics: dashMetrics,\n playbackController: playbackController,\n timelineConverter: timelineConverter,\n dashConstants: DashConstants,\n events: Events,\n eventBus: eventBus,\n errors: Errors\n });\n\n bufferController = createBufferControllerForType(type);\n if (bufferController) {\n bufferController.initialize(mediaSource);\n }\n\n scheduleController = ScheduleController(context).create({\n streamInfo: streamInfo,\n type: type,\n mimeType: mimeType,\n adapter: adapter,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n fragmentModel: fragmentModel,\n abrController: abrController,\n playbackController: playbackController,\n textController: textController,\n mediaController: mediaController,\n bufferController: bufferController,\n settings: settings\n });\n\n scheduleController.initialize(hasVideoTrack);\n\n bufferingTime = 0;\n bufferPruned = false;\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function getType() {\n return type;\n }\n\n function resetInitialSettings() {\n mediaInfoArr = [];\n mediaInfo = null;\n bufferingTime = 0;\n }\n\n function reset(errored, keepBuffers) {\n if (indexHandler) {\n indexHandler.reset();\n }\n\n if (bufferController) {\n bufferController.reset(errored, keepBuffers);\n bufferController = null;\n }\n\n if (scheduleController) {\n scheduleController.reset();\n scheduleController = null;\n }\n\n if (representationController) {\n representationController.reset();\n representationController = null;\n }\n\n if (liveEdgeFinder) {\n liveEdgeFinder.reset();\n liveEdgeFinder = null;\n }\n\n if (abrController) {\n abrController.unRegisterStreamType(type);\n }\n\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.off(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, instance);\n eventBus.off(Events.INIT_FRAGMENT_NEEDED, onInitFragmentNeeded, instance);\n eventBus.off(Events.MEDIA_FRAGMENT_NEEDED, onMediaFragmentNeeded, instance);\n eventBus.off(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, instance);\n eventBus.off(Events.BUFFER_LEVEL_UPDATED, onBufferLevelUpdated, instance);\n eventBus.off(Events.BUFFER_LEVEL_STATE_CHANGED, onBufferLevelStateChanged, instance);\n eventBus.off(Events.BUFFER_CLEARED, onBufferCleared, instance);\n eventBus.off(Events.SEEK_TARGET, onSeekTarget, instance);\n\n resetInitialSettings();\n type = null;\n streamInfo = null;\n }\n\n function isUpdating() {\n return representationController ? representationController.isUpdating() : false;\n }\n\n\n function onDataUpdateCompleted(e) {\n if (!e.error) {\n // Update representation if no error\n scheduleController.setCurrentRepresentation(adapter.convertDataToRepresentationInfo(e.currentRepresentation));\n }\n if (!e.error || e.error.code === Errors.SEGMENTS_UPDATE_FAILED_ERROR_CODE) {\n // Update has been postponed, update nevertheless DVR info\n const activeStreamId = playbackController.getStreamController().getActiveStreamInfo().id;\n if (activeStreamId === streamInfo.id) {\n addDVRMetric();\n }\n }\n }\n\n function onQualityChanged(e) {\n let representationInfo = getRepresentationInfo(e.newQuality);\n scheduleController.setCurrentRepresentation(representationInfo);\n dashMetrics.pushPlayListTraceMetrics(new Date(), PlayListTrace.REPRESENTATION_SWITCH_STOP_REASON);\n dashMetrics.createPlaylistTraceMetrics(representationInfo.id, playbackController.getTime() * 1000, playbackController.getPlaybackRate());\n }\n\n function onBufferLevelUpdated(e) {\n dashMetrics.addBufferLevel(type, new Date(), e.bufferLevel * 1000);\n const activeStreamId = playbackController.getStreamController().getActiveStreamInfo().id;\n if (!manifestModel.getValue().doNotUpdateDVRWindowOnBufferUpdated && streamInfo.id === activeStreamId) {\n addDVRMetric();\n }\n }\n\n function onBufferLevelStateChanged(e) {\n dashMetrics.addBufferState(type, e.state, scheduleController.getBufferTarget());\n if (e.state === MetricsConstants.BUFFER_EMPTY && !playbackController.isSeeking()) {\n // logger.info('Buffer is empty! Stalling!');\n dashMetrics.pushPlayListTraceMetrics(new Date(), PlayListTrace.REBUFFERING_REASON);\n }\n }\n\n function onBufferCleared(e) {\n // Remove executed requests not buffered anymore\n fragmentModel.syncExecutedRequestsWithBufferedRange(\n bufferController.getBuffer().getAllBufferRanges(),\n streamInfo.duration);\n\n // If buffer removed ahead current time (QuotaExceededError or automatic buffer pruning) then adjust current index handler time\n if (e.from > playbackController.getTime()) {\n bufferingTime = e.from;\n bufferPruned = true;\n }\n }\n\n function addDVRMetric() {\n const manifestInfo = streamInfo.manifestInfo;\n const isDynamic = manifestInfo.isDynamic;\n const range = timelineConverter.calcSegmentAvailabilityRange(representationController.getCurrentRepresentation(), isDynamic);\n dashMetrics.addDVRInfo(getType(), playbackController.getTime(), manifestInfo, range);\n }\n\n function getRepresentationController() {\n return representationController;\n }\n\n function getBuffer() {\n return bufferController ? bufferController.getBuffer() : null;\n }\n\n function setBuffer(buffer) {\n bufferController.setBuffer(buffer);\n }\n\n function getBufferController() {\n return bufferController;\n }\n\n function getFragmentModel() {\n return fragmentModel;\n }\n\n function updateStreamInfo(newStreamInfo) {\n streamInfo = newStreamInfo;\n if (settings.get().streaming.useAppendWindow) {\n bufferController.updateAppendWindow();\n }\n }\n\n function getStreamInfo() {\n return streamInfo;\n }\n\n function selectMediaInfo(newMediaInfo) {\n if (newMediaInfo !== mediaInfo && (!newMediaInfo || !mediaInfo || (newMediaInfo.type === mediaInfo.type))) {\n mediaInfo = newMediaInfo;\n }\n\n const newRealAdaptation = adapter.getRealAdaptation(streamInfo, mediaInfo);\n const voRepresentations = adapter.getVoRepresentations(mediaInfo);\n\n if (representationController) {\n const realAdaptation = representationController.getData();\n const maxQuality = abrController.getTopQualityIndexFor(type, streamInfo.id);\n const minIdx = abrController.getMinAllowedIndexFor(type);\n\n let quality,\n averageThroughput;\n let bitrate = null;\n\n if ((realAdaptation === null || (realAdaptation.id != newRealAdaptation.id)) && type !== Constants.FRAGMENTED_TEXT) {\n averageThroughput = abrController.getThroughputHistory().getAverageThroughput(type);\n bitrate = averageThroughput || abrController.getInitialBitrateFor(type);\n quality = abrController.getQualityForBitrate(mediaInfo, bitrate);\n } else {\n quality = abrController.getQualityFor(type);\n }\n\n if (minIdx !== undefined && quality < minIdx) {\n quality = minIdx;\n }\n if (quality > maxQuality) {\n quality = maxQuality;\n }\n indexHandler.setMimeType(mediaInfo ? mediaInfo.mimeType : null);\n representationController.updateData(newRealAdaptation, voRepresentations, type, quality);\n }\n }\n\n function addMediaInfo(newMediaInfo, selectNewMediaInfo) {\n if (mediaInfoArr.indexOf(newMediaInfo) === -1) {\n mediaInfoArr.push(newMediaInfo);\n }\n\n if (selectNewMediaInfo) {\n this.selectMediaInfo(newMediaInfo);\n }\n }\n\n function getMediaInfoArr() {\n return mediaInfoArr;\n }\n\n function getMediaInfo() {\n return mediaInfo;\n }\n\n function getMediaSource() {\n return bufferController.getMediaSource();\n }\n\n function setMediaSource(mediaSource) {\n bufferController.setMediaSource(mediaSource, getMediaInfoArr());\n }\n\n function dischargePreBuffer() {\n bufferController.dischargePreBuffer();\n }\n\n function getScheduleController() {\n return scheduleController;\n }\n\n /**\n * Get a specific voRepresentation. If quality parameter is defined, this function will return the voRepresentation for this quality.\n * Otherwise, this function will return the current voRepresentation used by the representationController.\n * @param {number} quality - quality index of the voRepresentaion expected.\n */\n function getRepresentationInfo(quality) {\n let voRepresentation;\n\n if (quality !== undefined) {\n checkInteger(quality);\n voRepresentation = representationController ? representationController.getRepresentationForQuality(quality) : null;\n } else {\n voRepresentation = representationController ? representationController.getCurrentRepresentation() : null;\n }\n\n return adapter.convertDataToRepresentationInfo(voRepresentation);\n }\n\n function isBufferingCompleted() {\n return bufferController ? bufferController.getIsBufferingCompleted() : false;\n }\n\n function getBufferLevel() {\n return bufferController ? bufferController.getBufferLevel() : 0;\n }\n\n function onInitFragmentNeeded(e) {\n // Event propagation may have been stopped (see MssHandler)\n if (!e.sender) return;\n\n if (adapter.getIsTextTrack(mimeType) && !textController.isTextEnabled()) return;\n\n if (bufferController && e.representationId) {\n if (!bufferController.appendInitSegment(e.representationId)) {\n // Init segment not in cache, send new request\n const request = indexHandler ? indexHandler.getInitRequest(getMediaInfo(), representationController.getCurrentRepresentation()) : null;\n scheduleController.processInitRequest(request);\n }\n }\n }\n\n function onMediaFragmentNeeded(e) {\n let request;\n\n // Don't schedule next fragments while pruning to avoid buffer inconsistencies\n if (!bufferController.getIsPruningInProgress()) {\n request = findNextRequest(e.seekTarget, e.replacement);\n if (request) {\n scheduleController.setSeekTarget(NaN);\n if (!e.replacement) {\n if (!isNaN(request.startTime + request.duration)) {\n bufferingTime = request.startTime + request.duration;\n }\n request.delayLoadingTime = new Date().getTime() + scheduleController.getTimeToLoadDelay();\n scheduleController.setTimeToLoadDelay(0);\n }\n }\n }\n\n scheduleController.processMediaRequest(request);\n }\n\n function findNextRequest(seekTarget, requestToReplace) {\n const representationInfo = getRepresentationInfo();\n const hasSeekTarget = !isNaN(seekTarget);\n const currentTime = playbackController.getNormalizedTime();\n let time = hasSeekTarget ? seekTarget : bufferingTime;\n let bufferIsDivided = false;\n let request;\n\n if (isNaN(time) || (getType() === Constants.FRAGMENTED_TEXT && !textController.isTextEnabled())) {\n return null;\n }\n /**\n * This is critical for IE/Safari/EDGE\n * */\n if (bufferController) {\n let range = bufferController.getRangeAt(time);\n const playingRange = bufferController.getRangeAt(currentTime);\n if ((range !== null || playingRange !== null) && !hasSeekTarget) {\n if (!range || (playingRange && playingRange.start != range.start && playingRange.end != range.end)) {\n const hasDiscontinuities = bufferController.getBuffer().hasDiscontinuitiesAfter(currentTime);\n if (hasDiscontinuities && getType() !== Constants.FRAGMENTED_TEXT) {\n fragmentModel.removeExecutedRequestsAfterTime(playingRange.end);\n bufferIsDivided = true;\n }\n }\n }\n }\n\n if (requestToReplace) {\n time = requestToReplace.startTime + (requestToReplace.duration / 2);\n request = getFragmentRequest(representationInfo, time, {\n timeThreshold: 0,\n ignoreIsFinished: true\n });\n } else {\n // Use time just whenever is strictly needed\n const useTime = hasSeekTarget || bufferPruned || bufferIsDivided;\n request = getFragmentRequest(representationInfo,\n useTime ? time : undefined, {\n keepIdx: !useTime\n });\n bufferPruned = false;\n\n // Then, check if this request was downloaded or not\n while (request && request.action !== FragmentRequest.ACTION_COMPLETE && fragmentModel.isFragmentLoaded(request)) {\n // loop until we found not loaded fragment, or no fragment\n request = getFragmentRequest(representationInfo);\n }\n }\n\n return request;\n }\n\n function onMediaFragmentLoaded(e) {\n const chunk = e.chunk;\n\n const bytes = chunk.bytes;\n const quality = chunk.quality;\n const currentRepresentation = getRepresentationInfo(quality);\n\n const voRepresentation = representationController && currentRepresentation ? representationController.getRepresentationForQuality(currentRepresentation.quality) : null;\n const eventStreamMedia = adapter.getEventsFor(currentRepresentation.mediaInfo);\n const eventStreamTrack = adapter.getEventsFor(currentRepresentation, voRepresentation);\n\n if (eventStreamMedia && eventStreamMedia.length > 0 || eventStreamTrack && eventStreamTrack.length > 0) {\n const request = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n quality: quality,\n index: chunk.index\n })[0];\n\n const events = handleInbandEvents(bytes, request, eventStreamMedia, eventStreamTrack);\n eventBus.trigger(Events.INBAND_EVENTS,\n { events: events },\n { streamId: streamInfo.id }\n );\n }\n }\n\n function handleInbandEvents(data, request, mediaInbandEvents, trackInbandEvents) {\n try {\n const eventStreams = {};\n const events = [];\n\n /* Extract the possible schemeIdUri : If a DASH client detects an event message box with a scheme that is not defined in MPD, the client is expected to ignore it */\n const inbandEvents = mediaInbandEvents.concat(trackInbandEvents);\n for (let i = 0, ln = inbandEvents.length; i < ln; i++) {\n eventStreams[inbandEvents[i].schemeIdUri + '/' + inbandEvents[i].value] = inbandEvents[i];\n }\n\n const isoFile = BoxParser(context).getInstance().parse(data);\n const eventBoxes = isoFile.getBoxes('emsg');\n\n if (!eventBoxes || eventBoxes.length === 0) {\n return events;\n }\n\n const sidx = isoFile.getBox('sidx');\n const mediaAnchorTime = sidx && !isNaN(sidx.earliest_presentation_time) && !isNaN(sidx.timescale) ? sidx.earliest_presentation_time / sidx.timescale : request && !isNaN(request.mediaStartTime) ? request.mediaStartTime : 0;\n const fragmentMediaStartTime = Math.max(mediaAnchorTime, 0);\n const voRepresentation = representationController.getCurrentRepresentation();\n\n for (let i = 0, ln = eventBoxes.length; i < ln; i++) {\n const event = adapter.getEvent(eventBoxes[i], eventStreams, fragmentMediaStartTime, voRepresentation);\n\n if (event) {\n events.push(event);\n }\n }\n\n return events;\n } catch (e) {\n return [];\n }\n }\n\n function createBuffer(previousBuffers) {\n return (getBuffer() || bufferController ? bufferController.createBuffer(mediaInfoArr, previousBuffers) : null);\n }\n\n function switchTrackAsked() {\n scheduleController.switchTrackAsked();\n }\n\n function createBufferControllerForType(type) {\n let controller = null;\n\n if (!type) {\n errHandler.error(new DashJSError(Errors.MEDIASOURCE_TYPE_UNSUPPORTED_CODE, Errors.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE + 'not properly defined'));\n return null;\n }\n\n if (type === Constants.VIDEO || type === Constants.AUDIO) {\n controller = BufferController(context).create({\n streamInfo: streamInfo,\n type: type,\n mediaPlayerModel: mediaPlayerModel,\n manifestModel: manifestModel,\n fragmentModel: fragmentModel,\n errHandler: errHandler,\n mediaController: mediaController,\n representationController: representationController,\n adapter: adapter,\n textController: textController,\n abrController: abrController,\n playbackController: playbackController,\n settings: settings\n });\n } else {\n controller = TextBufferController(context).create({\n streamInfo: streamInfo,\n type: type,\n mimeType: mimeType,\n mediaPlayerModel: mediaPlayerModel,\n manifestModel: manifestModel,\n fragmentModel: fragmentModel,\n errHandler: errHandler,\n mediaController: mediaController,\n representationController: representationController,\n adapter: adapter,\n textController: textController,\n abrController: abrController,\n playbackController: playbackController,\n settings: settings\n });\n }\n\n return controller;\n }\n\n\n function getLiveStartTime() {\n if (!isDynamic) return NaN;\n if (!liveEdgeFinder) return NaN;\n\n let liveStartTime = NaN;\n const currentRepresentationInfo = getRepresentationInfo();\n const liveEdge = liveEdgeFinder.getLiveEdge(currentRepresentationInfo);\n\n if (isNaN(liveEdge)) {\n return NaN;\n }\n\n const request = findRequestForLiveEdge(liveEdge, currentRepresentationInfo);\n\n if (request) {\n // When low latency mode is selected but browser doesn't support fetch\n // start at the beginning of the segment to avoid consuming the whole buffer\n if (settings.get().streaming.lowLatencyEnabled) {\n liveStartTime = request.duration < mediaPlayerModel.getLiveDelay() ? request.startTime : request.startTime + request.duration - mediaPlayerModel.getLiveDelay();\n } else {\n liveStartTime = request.startTime;\n }\n }\n\n return liveStartTime;\n }\n\n function findRequestForLiveEdge(liveEdge, currentRepresentationInfo) {\n try {\n let request = null;\n let liveDelay = playbackController.getLiveDelay();\n const dvrWindowSize = !isNaN(streamInfo.manifestInfo.DVRWindowSize) ? streamInfo.manifestInfo.DVRWindowSize : liveDelay;\n const dvrWindowSafetyMargin = 0.1 * dvrWindowSize;\n let startTime;\n\n // Make sure that we have at least a valid request for the end of the DVR window, otherwise we might try forever\n if (!isFinite(dvrWindowSize) || getFragmentRequest(currentRepresentationInfo, liveEdge - dvrWindowSize + dvrWindowSafetyMargin, {\n ignoreIsFinished: true\n })) {\n\n // Try to find a request as close as possible to the targeted live edge\n while (!request && liveDelay <= dvrWindowSize) {\n startTime = liveEdge - liveDelay;\n request = getFragmentRequest(currentRepresentationInfo, startTime, {\n ignoreIsFinished: true\n });\n if (!request) {\n liveDelay += 1; // Increase by one second for each iteration\n }\n }\n }\n\n if (request) {\n playbackController.setLiveDelay(liveDelay, true);\n }\n logger.debug('live edge: ' + liveEdge + ', live delay: ' + liveDelay + ', live target: ' + startTime);\n return request;\n } catch (e) {\n return null;\n }\n }\n\n function onSeekTarget(e) {\n bufferingTime = e.time;\n scheduleController.setSeekTarget(e.time);\n }\n\n function setBufferingTime(value) {\n bufferingTime = value;\n }\n\n function resetIndexHandler() {\n if (indexHandler) {\n indexHandler.resetIndex();\n }\n }\n\n function getInitRequest(quality) {\n checkInteger(quality);\n const representation = representationController ? representationController.getRepresentationForQuality(quality) : null;\n return indexHandler ? indexHandler.getInitRequest(getMediaInfo(), representation) : null;\n }\n\n function getFragmentRequest(representationInfo, time, options) {\n let fragRequest = null;\n\n if (indexHandler) {\n const representation = representationController && representationInfo ? representationController.getRepresentationForQuality(representationInfo.quality) : null;\n\n // if time and options are undefined, it means the next segment is requested\n // otherwise, the segment at this specific time is requested.\n if (time !== undefined && options !== undefined) {\n fragRequest = indexHandler.getSegmentRequestForTime(getMediaInfo(), representation, time, options);\n } else {\n fragRequest = indexHandler.getNextSegmentRequest(getMediaInfo(), representation);\n }\n }\n\n return fragRequest;\n }\n\n function finalisePlayList(time, reason) {\n dashMetrics.pushPlayListTraceMetrics(time, reason);\n }\n\n instance = {\n initialize: initialize,\n getStreamId: getStreamId,\n getType: getType,\n isUpdating: isUpdating,\n getBufferController: getBufferController,\n getFragmentModel: getFragmentModel,\n getScheduleController: getScheduleController,\n getRepresentationController: getRepresentationController,\n getRepresentationInfo: getRepresentationInfo,\n getBufferLevel: getBufferLevel,\n isBufferingCompleted: isBufferingCompleted,\n createBuffer: createBuffer,\n updateStreamInfo: updateStreamInfo,\n getStreamInfo: getStreamInfo,\n selectMediaInfo: selectMediaInfo,\n addMediaInfo: addMediaInfo,\n getLiveStartTime: getLiveStartTime,\n switchTrackAsked: switchTrackAsked,\n getMediaInfoArr: getMediaInfoArr,\n getMediaInfo: getMediaInfo,\n getMediaSource: getMediaSource,\n setMediaSource: setMediaSource,\n dischargePreBuffer: dischargePreBuffer,\n getBuffer: getBuffer,\n setBuffer: setBuffer,\n setBufferingTime: setBufferingTime,\n resetIndexHandler: resetIndexHandler,\n getInitRequest: getInitRequest,\n getFragmentRequest: getFragmentRequest,\n finalisePlayList: finalisePlayList,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nStreamProcessor.__dashjs_factory_name = 'StreamProcessor';\nexport default FactoryMaker.getClassFactory(StreamProcessor);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport StreamProcessor from './StreamProcessor';\nimport FragmentController from './controllers/FragmentController';\nimport ThumbnailController from './thumbnail/ThumbnailController';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport Debug from '../core/Debug';\nimport Errors from '../core/errors/Errors';\nimport FactoryMaker from '../core/FactoryMaker';\nimport DashJSError from './vo/DashJSError';\nimport BoxParser from './utils/BoxParser';\nimport URLUtils from './utils/URLUtils';\n\nfunction Stream(config) {\n\n config = config || {};\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n const manifestModel = config.manifestModel;\n const mediaPlayerModel = config.mediaPlayerModel;\n const manifestUpdater = config.manifestUpdater;\n const adapter = config.adapter;\n const capabilities = config.capabilities;\n const capabilitiesFilter = config.capabilitiesFilter;\n const errHandler = config.errHandler;\n const timelineConverter = config.timelineConverter;\n const dashMetrics = config.dashMetrics;\n const abrController = config.abrController;\n const playbackController = config.playbackController;\n const eventController = config.eventController;\n const mediaController = config.mediaController;\n const textController = config.textController;\n const protectionController = config.protectionController;\n const videoModel = config.videoModel;\n const settings = config.settings;\n let streamInfo = config.streamInfo;\n\n let instance,\n logger,\n streamProcessors,\n isStreamInitialized,\n isStreamActivated,\n isMediaInitialized,\n hasVideoTrack,\n hasAudioTrack,\n updateError,\n isUpdating,\n fragmentController,\n thumbnailController,\n preloaded,\n boxParser,\n preloadingScheduled,\n debug,\n isEndedEventSignaled,\n trackChangedEvent;\n\n function setup() {\n debug = Debug(context).getInstance();\n logger = debug.getLogger(instance);\n resetInitialSettings();\n\n boxParser = BoxParser(context).getInstance();\n\n fragmentController = FragmentController(context).create({\n streamInfo: streamInfo,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n errHandler: errHandler,\n settings: settings,\n boxParser: boxParser,\n dashConstants: DashConstants,\n urlUtils: urlUtils\n });\n }\n\n function initialize() {\n registerEvents();\n registerProtectionEvents();\n eventBus.trigger(Events.STREAM_UPDATED, { streamInfo: streamInfo });\n }\n\n function registerEvents() {\n eventBus.on(Events.BUFFERING_COMPLETED, onBufferingCompleted, instance);\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.on(Events.INBAND_EVENTS, onInbandEvents, instance);\n }\n\n function unRegisterEvents() {\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.off(Events.BUFFERING_COMPLETED, onBufferingCompleted, instance);\n eventBus.off(Events.INBAND_EVENTS, onInbandEvents, instance);\n }\n\n function registerProtectionEvents() {\n if (protectionController) {\n eventBus.on(Events.KEY_ERROR, onProtectionError, instance);\n eventBus.on(Events.SERVER_CERTIFICATE_UPDATED, onProtectionError, instance);\n eventBus.on(Events.LICENSE_REQUEST_COMPLETE, onProtectionError, instance);\n eventBus.on(Events.KEY_SYSTEM_SELECTED, onProtectionError, instance);\n eventBus.on(Events.KEY_SESSION_CREATED, onProtectionError, instance);\n eventBus.on(Events.KEY_STATUSES_CHANGED, onProtectionError, instance);\n }\n }\n\n function unRegisterProtectionEvents() {\n if (protectionController) {\n eventBus.off(Events.KEY_ERROR, onProtectionError, instance);\n eventBus.off(Events.SERVER_CERTIFICATE_UPDATED, onProtectionError, instance);\n eventBus.off(Events.LICENSE_REQUEST_COMPLETE, onProtectionError, instance);\n eventBus.off(Events.KEY_SYSTEM_SELECTED, onProtectionError, instance);\n eventBus.off(Events.KEY_SESSION_CREATED, onProtectionError, instance);\n eventBus.off(Events.KEY_STATUSES_CHANGED, onProtectionError, instance);\n }\n }\n\n function getStreamId() {\n return streamInfo ? streamInfo.id : null;\n }\n\n /**\n * Activates Stream by re-initializing some of its components\n * @param {MediaSource} mediaSource\n * @memberof Stream#\n * @param {SourceBuffer} previousBuffers\n */\n function activate(mediaSource, previousBuffers) {\n if (!isStreamActivated) {\n let result;\n eventBus.on(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, instance);\n if (!getPreloaded()) {\n result = initializeMedia(mediaSource, previousBuffers);\n } else {\n initializeAfterPreload();\n result = previousBuffers;\n }\n isStreamActivated = true;\n return result;\n }\n return previousBuffers;\n }\n\n /**\n * Partially resets some of the Stream elements\n * @memberof Stream#\n * @param {boolean} keepBuffers\n */\n function deactivate(keepBuffers) {\n let ln = streamProcessors ? streamProcessors.length : 0;\n const errored = false;\n for (let i = 0; i < ln; i++) {\n let fragmentModel = streamProcessors[i].getFragmentModel();\n fragmentModel.removeExecutedRequestsBeforeTime(getStartTime() + getDuration());\n streamProcessors[i].reset(errored, keepBuffers);\n }\n streamProcessors = [];\n isStreamActivated = false;\n isMediaInitialized = false;\n setPreloaded(false);\n eventBus.off(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, instance);\n }\n\n function isActive() {\n return isStreamActivated;\n }\n\n function setMediaSource(mediaSource) {\n for (let i = 0; i < streamProcessors.length;) {\n if (isMediaSupported(streamProcessors[i].getMediaInfo())) {\n streamProcessors[i].setMediaSource(mediaSource);\n i++;\n } else {\n streamProcessors[i].reset();\n streamProcessors.splice(i, 1);\n }\n }\n\n for (let i = 0; i < streamProcessors.length; i++) {\n //Adding of new tracks to a stream processor isn't guaranteed by the spec after the METADATA_LOADED state\n //so do this after the buffers are created above.\n streamProcessors[i].dischargePreBuffer();\n }\n\n if (streamProcessors.length === 0) {\n const msg = 'No streams to play.';\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, msg + 'nostreams', manifestModel.getValue()));\n logger.fatal(msg);\n }\n }\n\n function resetInitialSettings() {\n deactivate();\n isStreamInitialized = false;\n hasVideoTrack = false;\n hasAudioTrack = false;\n updateError = {};\n isUpdating = false;\n preloadingScheduled = false;\n isEndedEventSignaled = false;\n }\n\n function reset() {\n\n if (playbackController) {\n playbackController.pause();\n }\n\n if (fragmentController) {\n fragmentController.reset();\n fragmentController = null;\n }\n\n streamInfo = null;\n\n resetInitialSettings();\n\n unRegisterEvents();\n\n unRegisterProtectionEvents();\n\n setPreloaded(false);\n }\n\n function getDuration() {\n return streamInfo ? streamInfo.duration : NaN;\n }\n\n function getIsEndedEventSignaled() {\n return isEndedEventSignaled;\n }\n\n function setIsEndedEventSignaled(value) {\n isEndedEventSignaled = value;\n }\n\n function getStartTime() {\n return streamInfo ? streamInfo.start : NaN;\n }\n\n function getPreloadingScheduled() {\n return preloadingScheduled;\n }\n\n function setPreloadingScheduled(value) {\n preloadingScheduled = value;\n }\n\n function getLiveStartTime() {\n if (!streamInfo.manifestInfo.isDynamic) return NaN;\n // Get live start time of the video stream (1st in array of streams)\n // or audio if no video stream\n for (let i = 0; i < streamProcessors.length; i++) {\n if (streamProcessors[i].getType() === Constants.AUDIO ||\n streamProcessors[i].getType() === Constants.VIDEO) {\n return streamProcessors[i].getLiveStartTime();\n }\n }\n return NaN;\n }\n\n function getId() {\n return streamInfo ? streamInfo.id : null;\n }\n\n function getStreamInfo() {\n return streamInfo;\n }\n\n function getHasAudioTrack() {\n return hasAudioTrack;\n }\n\n function getHasVideoTrack() {\n return hasVideoTrack;\n }\n\n function getThumbnailController() {\n return thumbnailController;\n }\n\n function checkConfig() {\n if (!videoModel || !abrController || !abrController.hasOwnProperty('getBitrateList') || !adapter || !adapter.hasOwnProperty('getAllMediaInfoForType') || !adapter.hasOwnProperty('getEventsFor')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n /**\n * @param {string} type\n * @returns {Array}\n * @memberof Stream#\n */\n function getBitrateListFor(type) {\n checkConfig();\n if (type === Constants.IMAGE) {\n if (!thumbnailController) {\n return [];\n }\n return thumbnailController.getBitrateList();\n }\n const mediaInfo = getMediaInfo(type);\n return abrController.getBitrateList(mediaInfo);\n }\n\n function onProtectionError(event) {\n if (event.error) {\n errHandler.error(event.error);\n logger.fatal(event.error.message);\n reset();\n }\n }\n\n function isMediaSupported(mediaInfo) {\n const type = mediaInfo ? mediaInfo.type : null;\n let codec,\n msg;\n\n if (type === Constants.MUXED) {\n msg = 'Multiplexed representations are intentionally not supported, as they are not compliant with the DASH-AVC/264 guidelines';\n logger.fatal(msg);\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_MULTIPLEXED_CODE, msg, manifestModel.getValue()));\n return false;\n }\n\n if (type === Constants.TEXT || type === Constants.FRAGMENTED_TEXT || type === Constants.EMBEDDED_TEXT || type === Constants.IMAGE) {\n return true;\n }\n codec = mediaInfo.codec;\n logger.debug(type + ' codec: ' + codec);\n\n if (!!mediaInfo.contentProtection && !capabilities.supportsEncryptedMedia()) {\n errHandler.error(new DashJSError(Errors.CAPABILITY_MEDIAKEYS_ERROR_CODE, Errors.CAPABILITY_MEDIAKEYS_ERROR_MESSAGE));\n } else if (!capabilities.supportsCodec(codec)) {\n msg = type + 'Codec (' + codec + ') is not supported.';\n logger.error(msg);\n return false;\n }\n\n return true;\n }\n\n function onCurrentTrackChanged(e) {\n if (!streamInfo || e.newMediaInfo.streamInfo.id !== streamInfo.id) return;\n let mediaInfo = e.newMediaInfo;\n let manifest = manifestModel.getValue();\n\n adapter.setCurrentMediaInfo(streamInfo.id, mediaInfo.type, mediaInfo);\n\n let processor = getProcessorForMediaInfo(mediaInfo);\n if (!processor) return;\n\n let currentTime = playbackController.getTime();\n logger.info('Stream - Process track changed at current time ' + currentTime);\n\n logger.debug('Stream - Update stream controller');\n if (manifest.refreshManifestOnSwitchTrack) { // Applies only for MSS streams\n logger.debug('Stream - Refreshing manifest for switch track');\n trackChangedEvent = e;\n manifestUpdater.refreshManifest();\n } else {\n processor.selectMediaInfo(mediaInfo);\n if (mediaInfo.type !== Constants.FRAGMENTED_TEXT) {\n abrController.updateTopQualityIndex(mediaInfo);\n processor.switchTrackAsked();\n processor.getFragmentModel().abortRequests();\n } else {\n processor.getScheduleController().setSeekTarget(currentTime);\n processor.setBufferingTime(currentTime);\n processor.resetIndexHandler();\n }\n }\n }\n\n function createStreamProcessor(mediaInfo, allMediaForType, mediaSource, optionalSettings) {\n\n let fragmentModel = fragmentController.getModel(mediaInfo ? mediaInfo.type : null);\n\n let streamProcessor = StreamProcessor(context).create({\n streamInfo: streamInfo,\n type: mediaInfo ? mediaInfo.type : null,\n mimeType: mediaInfo ? mediaInfo.mimeType : null,\n timelineConverter: timelineConverter,\n adapter: adapter,\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n fragmentModel: fragmentModel,\n dashMetrics: config.dashMetrics,\n baseURLController: config.baseURLController,\n abrController: abrController,\n playbackController: playbackController,\n mediaController: mediaController,\n textController: textController,\n errHandler: errHandler,\n settings: settings,\n boxParser: boxParser\n });\n\n streamProcessor.initialize(mediaSource, hasVideoTrack);\n abrController.updateTopQualityIndex(mediaInfo);\n\n if (optionalSettings) {\n streamProcessor.setBuffer(optionalSettings.buffer);\n streamProcessor.setBufferingTime(optionalSettings.currentTime);\n streamProcessors[optionalSettings.replaceIdx] = streamProcessor;\n } else {\n streamProcessors.push(streamProcessor);\n }\n\n if (optionalSettings && optionalSettings.ignoreMediaInfo) {\n return;\n }\n\n if (mediaInfo && (mediaInfo.type === Constants.TEXT || mediaInfo.type === Constants.FRAGMENTED_TEXT)) {\n let idx;\n for (let i = 0; i < allMediaForType.length; i++) {\n if (allMediaForType[i].index === mediaInfo.index) {\n idx = i;\n }\n streamProcessor.addMediaInfo(allMediaForType[i]); //creates text tracks for all adaptations in one stream processor\n }\n streamProcessor.selectMediaInfo(allMediaForType[idx]); //sets the initial media info\n } else {\n streamProcessor.addMediaInfo(mediaInfo, true);\n }\n }\n\n function initializeMediaForType(type, mediaSource) {\n const allMediaForType = adapter.getAllMediaInfoForType(streamInfo, type);\n\n let mediaInfo = null;\n let initialMediaInfo;\n\n if (!allMediaForType || allMediaForType.length === 0) {\n logger.info('No ' + type + ' data.');\n return;\n }\n\n if (type === Constants.VIDEO) {\n hasVideoTrack = true;\n }\n\n if (type === Constants.AUDIO) {\n hasAudioTrack = true;\n }\n\n for (let i = 0, ln = allMediaForType.length; i < ln; i++) {\n mediaInfo = allMediaForType[i];\n\n if (type === Constants.EMBEDDED_TEXT) {\n textController.addEmbeddedTrack(mediaInfo);\n } else {\n if (!isMediaSupported(mediaInfo)) continue;\n mediaController.addTrack(mediaInfo);\n }\n }\n\n if (type === Constants.EMBEDDED_TEXT || mediaController.getTracksFor(type, streamInfo).length === 0) {\n return;\n }\n\n if (type === Constants.IMAGE) {\n thumbnailController = ThumbnailController(context).create({\n streamInfo: streamInfo,\n adapter: adapter,\n baseURLController: config.baseURLController,\n timelineConverter: config.timelineConverter,\n debug: debug,\n eventBus: eventBus,\n events: Events,\n dashConstants: DashConstants\n });\n return;\n }\n\n\n mediaController.checkInitialMediaSettingsForType(type, streamInfo);\n initialMediaInfo = mediaController.getCurrentTrackFor(type, streamInfo);\n\n eventBus.trigger(Events.STREAM_INITIALIZING, {\n streamInfo: streamInfo,\n mediaInfo: mediaInfo\n });\n\n // TODO : How to tell index handler live/duration?\n // TODO : Pass to controller and then pass to each method on handler?\n\n createStreamProcessor(initialMediaInfo, allMediaForType, mediaSource);\n }\n\n function addInlineEvents() {\n if (eventController) {\n const events = adapter.getEventsFor(streamInfo);\n eventController.addInlineEvents(events);\n }\n }\n\n function addInbandEvents(events) {\n if (eventController) {\n eventController.addInbandEvents(events);\n }\n }\n\n function initializeMedia(mediaSource, previousBuffers) {\n checkConfig();\n let element = videoModel.getElement();\n\n addInlineEvents();\n\n isUpdating = true;\n\n capabilitiesFilter.filterUnsupportedFeaturesOfPeriod( streamInfo);\n\n if (!element || (element && (/^VIDEO$/i).test(element.nodeName))) {\n initializeMediaForType(Constants.VIDEO, mediaSource);\n }\n initializeMediaForType(Constants.AUDIO, mediaSource);\n initializeMediaForType(Constants.TEXT, mediaSource);\n initializeMediaForType(Constants.FRAGMENTED_TEXT, mediaSource);\n initializeMediaForType(Constants.EMBEDDED_TEXT, mediaSource);\n initializeMediaForType(Constants.MUXED, mediaSource);\n initializeMediaForType(Constants.IMAGE, mediaSource);\n\n //TODO. Consider initialization of TextSourceBuffer here if embeddedText, but no sideloadedText.\n const buffers = createBuffers(previousBuffers);\n\n isMediaInitialized = true;\n isUpdating = false;\n\n if (streamProcessors.length === 0) {\n const msg = 'No streams to play.';\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, msg, manifestModel.getValue()));\n logger.fatal(msg);\n } else {\n checkIfInitializationCompleted();\n }\n\n return buffers;\n }\n\n function initializeAfterPreload() {\n isUpdating = true;\n checkConfig();\n capabilitiesFilter.filterUnsupportedFeaturesOfPeriod(streamInfo);\n\n isMediaInitialized = true;\n isUpdating = false;\n if (streamProcessors.length === 0) {\n const msg = 'No streams to play.';\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, msg, manifestModel.getValue()));\n logger.debug(msg);\n } else {\n checkIfInitializationCompleted();\n }\n }\n\n function checkIfInitializationCompleted() {\n const ln = streamProcessors.length;\n const hasError = !!updateError.audio || !!updateError.video;\n let error = hasError ? new DashJSError(Errors.DATA_UPDATE_FAILED_ERROR_CODE, Errors.DATA_UPDATE_FAILED_ERROR_MESSAGE) : null;\n\n for (let i = 0; i < ln; i++) {\n if (streamProcessors[i].isUpdating() || isUpdating) {\n return;\n }\n }\n\n if (!isMediaInitialized) {\n return;\n }\n\n if (protectionController) {\n // Need to check if streamProcessors exists because streamProcessors\n // could be cleared in case an error is detected while initializing DRM keysystem\n protectionController.clearMediaInfoArrayByStreamId(getId());\n for (let i = 0; i < ln && streamProcessors[i]; i++) {\n const type = streamProcessors[i].getType();\n if (type === Constants.AUDIO ||\n type === Constants.VIDEO ||\n type === Constants.FRAGMENTED_TEXT) {\n let mediaInfo = streamProcessors[i].getMediaInfo();\n if (mediaInfo) {\n protectionController.initializeForMedia(mediaInfo);\n }\n }\n }\n }\n\n if (error) {\n errHandler.error(error);\n } else if (!isStreamInitialized) {\n isStreamInitialized = true;\n\n eventBus.trigger(Events.STREAM_INITIALIZED, {\n streamInfo: streamInfo,\n liveStartTime: !preloaded ? getLiveStartTime() : NaN\n });\n }\n\n // (Re)start ScheduleController:\n // - in case stream initialization has been completed after 'play' event (case for SegmentBase streams)\n // - in case stream is complete but a track switch has been requested\n for (let i = 0; i < ln && streamProcessors[i]; i++) {\n streamProcessors[i].getScheduleController().start();\n }\n }\n\n function getMediaInfo(type) {\n let streamProcessor = null;\n\n for (let i = 0; i < streamProcessors.length; i++) {\n streamProcessor = streamProcessors[i];\n\n if (streamProcessor.getType() === type) {\n return streamProcessor.getMediaInfo();\n }\n }\n\n return null;\n }\n\n function createBuffers(previousBuffers) {\n const buffers = {};\n for (let i = 0, ln = streamProcessors.length; i < ln; i++) {\n const buffer = streamProcessors[i].createBuffer(previousBuffers);\n if (buffer) {\n buffers[streamProcessors[i].getType()] = buffer.getBuffer();\n }\n }\n return buffers;\n }\n\n function onBufferingCompleted() {\n let processors = getProcessors();\n const ln = processors.length;\n\n if (ln === 0) {\n logger.warn('onBufferingCompleted - can\\'t trigger STREAM_BUFFERING_COMPLETED because no streamProcessor is defined');\n return;\n }\n\n // if there is at least one buffer controller that has not completed buffering yet do nothing\n for (let i = 0; i < ln; i++) {\n //if audio or video buffer is not buffering completed state, do not send STREAM_BUFFERING_COMPLETED\n if (!processors[i].isBufferingCompleted() && (processors[i].getType() === Constants.AUDIO || processors[i].getType() === Constants.VIDEO)) {\n logger.warn('onBufferingCompleted - One streamProcessor has finished but', processors[i].getType(), 'one is not buffering completed');\n return;\n }\n }\n\n logger.debug('onBufferingCompleted - trigger STREAM_BUFFERING_COMPLETED');\n eventBus.trigger(Events.STREAM_BUFFERING_COMPLETED, { streamInfo: streamInfo });\n }\n\n function onDataUpdateCompleted(e) {\n updateError[e.mediaType] = e.error;\n checkIfInitializationCompleted();\n }\n\n function onInbandEvents(e) {\n addInbandEvents(e.events);\n }\n\n function getProcessorForMediaInfo(mediaInfo) {\n if (!mediaInfo) {\n return null;\n }\n\n let processors = getProcessors();\n\n return processors.filter(function (processor) {\n return (processor.getType() === mediaInfo.type);\n })[0];\n }\n\n function getProcessors() {\n let arr = [];\n\n let type,\n streamProcessor;\n\n for (let i = 0; i < streamProcessors.length; i++) {\n streamProcessor = streamProcessors[i];\n type = streamProcessor.getType();\n\n if (type === Constants.AUDIO || type === Constants.VIDEO || type === Constants.FRAGMENTED_TEXT || type === Constants.TEXT) {\n arr.push(streamProcessor);\n }\n }\n\n return arr;\n }\n\n function updateData(updatedStreamInfo) {\n logger.info('Manifest updated... updating data system wide.');\n\n isStreamActivated = false;\n isUpdating = true;\n streamInfo = updatedStreamInfo;\n\n eventBus.trigger(Events.STREAM_UPDATED, { streamInfo: streamInfo });\n\n if (eventController) {\n addInlineEvents();\n }\n\n capabilitiesFilter.filterUnsupportedFeaturesOfPeriod(streamInfo);\n\n for (let i = 0, ln = streamProcessors.length; i < ln; i++) {\n let streamProcessor = streamProcessors[i];\n streamProcessor.updateStreamInfo(streamInfo);\n let mediaInfo = adapter.getMediaInfoForType(streamInfo, streamProcessor.getType());\n // Check if AdaptationSet has not been removed in MPD update\n if (mediaInfo) {\n abrController.updateTopQualityIndex(mediaInfo);\n streamProcessor.addMediaInfo(mediaInfo, true);\n }\n }\n\n if (trackChangedEvent) {\n let mediaInfo = trackChangedEvent.newMediaInfo;\n if (mediaInfo.type !== Constants.FRAGMENTED_TEXT) {\n let processor = getProcessorForMediaInfo(trackChangedEvent.oldMediaInfo);\n if (!processor) return;\n processor.switchTrackAsked();\n trackChangedEvent = undefined;\n }\n }\n\n isUpdating = false;\n checkIfInitializationCompleted();\n }\n\n function isMediaCodecCompatible(newStream, previousStream = null) {\n return compareCodecs(newStream, Constants.VIDEO, previousStream) && compareCodecs(newStream, Constants.AUDIO, previousStream);\n }\n\n function isProtectionCompatible(stream, previousStream = null) {\n return compareProtectionConfig(stream, Constants.VIDEO, previousStream) && compareProtectionConfig(stream, Constants.AUDIO, previousStream);\n }\n\n function compareProtectionConfig(stream, type, previousStream = null) {\n if (!stream) {\n return false;\n }\n const newStreamInfo = stream.getStreamInfo();\n const currentStreamInfo = previousStream ? previousStream.getStreamInfo() : getStreamInfo();\n\n if (!newStreamInfo || !currentStreamInfo) {\n return false;\n }\n\n const newAdaptation = adapter.getAdaptationForType(newStreamInfo.index, type, newStreamInfo);\n const currentAdaptation = adapter.getAdaptationForType(currentStreamInfo.index, type, currentStreamInfo);\n\n if (!newAdaptation || !currentAdaptation) {\n // If there is no adaptation for neither the old or the new stream they're compatible\n return !newAdaptation && !currentAdaptation;\n }\n\n // If the current period is unencrypted and the upcoming one is encrypted we need to reset sourcebuffers.\n return !(!isAdaptationDrmProtected(currentAdaptation) && isAdaptationDrmProtected(newAdaptation));\n }\n\n function isAdaptationDrmProtected(adaptation) {\n\n if (!adaptation) {\n // If there is no adaptation for neither the old or the new stream they're compatible\n return false;\n }\n\n // If the current period is unencrypted and the upcoming one is encrypted we need to reset sourcebuffers.\n return !!(adaptation.ContentProtection || (adaptation.Representation && adaptation.Representation.length > 0 && adaptation.Representation[0].ContentProtection));\n }\n\n function compareCodecs(newStream, type, previousStream = null) {\n if (!newStream || !newStream.hasOwnProperty('getStreamInfo')) {\n return false;\n }\n const newStreamInfo = newStream.getStreamInfo();\n const currentStreamInfo = previousStream ? previousStream.getStreamInfo() : getStreamInfo();\n\n if (!newStreamInfo || !currentStreamInfo) {\n return false;\n }\n\n const newAdaptation = adapter.getAdaptationForType(newStreamInfo.index, type, newStreamInfo);\n const currentAdaptation = adapter.getAdaptationForType(currentStreamInfo.index, type, currentStreamInfo);\n\n if (!newAdaptation || !currentAdaptation) {\n // If there is no adaptation for neither the old or the new stream they're compatible\n return !newAdaptation && !currentAdaptation;\n }\n\n const sameMimeType = newAdaptation && currentAdaptation && newAdaptation.mimeType === currentAdaptation.mimeType;\n const oldCodecs = currentAdaptation.Representation_asArray.map((representation) => {\n return representation.codecs;\n });\n\n const newCodecs = newAdaptation.Representation_asArray.map((representation) => {\n return representation.codecs;\n });\n\n const codecMatch = newCodecs.some((newCodec) => {\n return oldCodecs.indexOf(newCodec) > -1;\n });\n\n const partialCodecMatch = newCodecs.some((newCodec) => oldCodecs.some((oldCodec) => capabilities.codecRootCompatibleWithCodec(oldCodec, newCodec)));\n return codecMatch || (partialCodecMatch && sameMimeType);\n }\n\n function setPreloaded(value) {\n preloaded = value;\n }\n\n function getPreloaded() {\n return preloaded;\n }\n\n function preload(mediaSource, previousBuffers) {\n if (!getPreloaded()) {\n addInlineEvents();\n\n initializeMediaForType(Constants.VIDEO, mediaSource);\n initializeMediaForType(Constants.AUDIO, mediaSource);\n initializeMediaForType(Constants.TEXT, mediaSource);\n initializeMediaForType(Constants.FRAGMENTED_TEXT, mediaSource);\n initializeMediaForType(Constants.EMBEDDED_TEXT, mediaSource);\n initializeMediaForType(Constants.MUXED, mediaSource);\n initializeMediaForType(Constants.IMAGE, mediaSource);\n\n createBuffers(previousBuffers);\n\n eventBus.on(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, instance);\n for (let i = 0; i < streamProcessors.length && streamProcessors[i]; i++) {\n streamProcessors[i].getScheduleController().start();\n }\n\n setPreloaded(true);\n }\n }\n\n\n instance = {\n initialize: initialize,\n getStreamId: getStreamId,\n activate: activate,\n deactivate: deactivate,\n isActive: isActive,\n getDuration: getDuration,\n getStartTime: getStartTime,\n getId: getId,\n getStreamInfo: getStreamInfo,\n getHasAudioTrack: getHasAudioTrack,\n getHasVideoTrack: getHasVideoTrack,\n preload: preload,\n getThumbnailController: getThumbnailController,\n getBitrateListFor: getBitrateListFor,\n updateData: updateData,\n reset: reset,\n getProcessors: getProcessors,\n setMediaSource: setMediaSource,\n isMediaCodecCompatible: isMediaCodecCompatible,\n isProtectionCompatible: isProtectionCompatible,\n getPreloaded: getPreloaded,\n getPreloadingScheduled,\n setPreloadingScheduled,\n getIsEndedEventSignaled,\n setIsEndedEventSignaled\n };\n\n setup();\n return instance;\n}\n\nStream.__dashjs_factory_name = 'Stream';\nexport default FactoryMaker.getClassFactory(Stream);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from './constants/Constants';\nimport DashConstants from '../dash/constants/DashConstants';\nimport MetricsConstants from './constants/MetricsConstants';\nimport FragmentModel from './models/FragmentModel';\nimport BufferController from './controllers/BufferController';\nimport TextBufferController from './text/TextBufferController';\nimport ScheduleController from './controllers/ScheduleController';\nimport RepresentationController from '../dash/controllers/RepresentationController';\nimport LiveEdgeFinder from './utils/LiveEdgeFinder';\nimport FactoryMaker from '../core/FactoryMaker';\nimport {checkInteger} from './utils/SupervisorTools';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport DashHandler from '../dash/DashHandler';\nimport Errors from '../core/errors/Errors';\nimport DashJSError from './vo/DashJSError';\nimport Debug from '../core/Debug';\nimport RequestModifier from './utils/RequestModifier';\nimport URLUtils from '../streaming/utils/URLUtils';\nimport BoxParser from './utils/BoxParser';\nimport FragmentRequest from './vo/FragmentRequest';\nimport {PlayListTrace} from './vo/metrics/PlayList';\n\nfunction StreamProcessor(config) {\n\n config = config || {};\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n\n let streamInfo = config.streamInfo;\n let type = config.type;\n let errHandler = config.errHandler;\n let mimeType = config.mimeType;\n let timelineConverter = config.timelineConverter;\n let adapter = config.adapter;\n let manifestModel = config.manifestModel;\n let mediaPlayerModel = config.mediaPlayerModel;\n let fragmentModel = config.fragmentModel;\n let abrController = config.abrController;\n let playbackController = config.playbackController;\n let mediaController = config.mediaController;\n let textController = config.textController;\n let dashMetrics = config.dashMetrics;\n let settings = config.settings;\n let boxParser = config.boxParser;\n\n let instance,\n logger,\n isDynamic,\n mediaInfo,\n mediaInfoArr,\n bufferController,\n scheduleController,\n representationController,\n liveEdgeFinder,\n indexHandler,\n bufferingTime,\n bufferPruned;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n resetInitialSettings();\n\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance, { priority: EventBus.EVENT_PRIORITY_HIGH }); // High priority to be notified before Stream\n eventBus.on(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, instance);\n eventBus.on(Events.INIT_FRAGMENT_NEEDED, onInitFragmentNeeded, instance);\n eventBus.on(Events.MEDIA_FRAGMENT_NEEDED, onMediaFragmentNeeded, instance);\n eventBus.on(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, instance);\n eventBus.on(Events.BUFFER_LEVEL_UPDATED, onBufferLevelUpdated, instance);\n eventBus.on(Events.BUFFER_LEVEL_STATE_CHANGED, onBufferLevelStateChanged, instance);\n eventBus.on(Events.BUFFER_CLEARED, onBufferCleared, instance);\n eventBus.on(Events.SEEK_TARGET, onSeekTarget, instance);\n }\n\n function initialize(mediaSource, hasVideoTrack) {\n indexHandler = DashHandler(context).create({\n streamInfo: streamInfo,\n type: type,\n timelineConverter: timelineConverter,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n baseURLController: config.baseURLController,\n errHandler: errHandler,\n settings: settings,\n boxParser: boxParser,\n events: Events,\n eventBus: eventBus,\n errors: Errors,\n debug: Debug(context).getInstance(),\n requestModifier: RequestModifier(context).getInstance(),\n dashConstants: DashConstants,\n constants: Constants,\n urlUtils: URLUtils(context).getInstance()\n });\n\n // Create live edge finder for dynamic streams\n isDynamic = streamInfo.manifestInfo.isDynamic;\n if (isDynamic) {\n liveEdgeFinder = LiveEdgeFinder(context).create({\n timelineConverter: timelineConverter\n });\n }\n\n // Create/initialize controllers\n indexHandler.initialize(isDynamic);\n abrController.registerStreamType(type, instance);\n\n representationController = RepresentationController(context).create({\n streamInfo: streamInfo,\n type: type,\n abrController: abrController,\n dashMetrics: dashMetrics,\n playbackController: playbackController,\n timelineConverter: timelineConverter,\n dashConstants: DashConstants,\n events: Events,\n eventBus: eventBus,\n errors: Errors\n });\n\n bufferController = createBufferControllerForType(type);\n if (bufferController) {\n bufferController.initialize(mediaSource);\n }\n\n scheduleController = ScheduleController(context).create({\n streamInfo: streamInfo,\n type: type,\n mimeType: mimeType,\n adapter: adapter,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n fragmentModel: fragmentModel,\n abrController: abrController,\n playbackController: playbackController,\n textController: textController,\n mediaController: mediaController,\n bufferController: bufferController,\n settings: settings\n });\n\n scheduleController.initialize(hasVideoTrack);\n\n bufferingTime = 0;\n bufferPruned = false;\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function getType() {\n return type;\n }\n\n function resetInitialSettings() {\n mediaInfoArr = [];\n mediaInfo = null;\n bufferingTime = 0;\n }\n\n function reset(errored, keepBuffers) {\n if (indexHandler) {\n indexHandler.reset();\n }\n\n if (bufferController) {\n bufferController.reset(errored, keepBuffers);\n bufferController = null;\n }\n\n if (scheduleController) {\n scheduleController.reset();\n scheduleController = null;\n }\n\n if (representationController) {\n representationController.reset();\n representationController = null;\n }\n\n if (liveEdgeFinder) {\n liveEdgeFinder.reset();\n liveEdgeFinder = null;\n }\n\n if (abrController && !keepBuffers) {\n abrController.unRegisterStreamType(type);\n }\n\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.off(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, instance);\n eventBus.off(Events.INIT_FRAGMENT_NEEDED, onInitFragmentNeeded, instance);\n eventBus.off(Events.MEDIA_FRAGMENT_NEEDED, onMediaFragmentNeeded, instance);\n eventBus.off(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, instance);\n eventBus.off(Events.BUFFER_LEVEL_UPDATED, onBufferLevelUpdated, instance);\n eventBus.off(Events.BUFFER_LEVEL_STATE_CHANGED, onBufferLevelStateChanged, instance);\n eventBus.off(Events.BUFFER_CLEARED, onBufferCleared, instance);\n eventBus.off(Events.SEEK_TARGET, onSeekTarget, instance);\n\n resetInitialSettings();\n type = null;\n streamInfo = null;\n }\n\n function isUpdating() {\n return representationController ? representationController.isUpdating() : false;\n }\n\n\n function onDataUpdateCompleted(e) {\n if (!e.error) {\n // Update representation if no error\n scheduleController.setCurrentRepresentation(adapter.convertDataToRepresentationInfo(e.currentRepresentation));\n }\n if (!e.error || e.error.code === Errors.SEGMENTS_UPDATE_FAILED_ERROR_CODE) {\n // Update has been postponed, update nevertheless DVR info\n const activeStreamId = playbackController.getStreamController().getActiveStreamInfo().id;\n if (activeStreamId === streamInfo.id) {\n addDVRMetric();\n }\n }\n }\n\n function onQualityChanged(e) {\n let representationInfo = getRepresentationInfo(e.newQuality);\n scheduleController.setCurrentRepresentation(representationInfo);\n dashMetrics.pushPlayListTraceMetrics(new Date(), PlayListTrace.REPRESENTATION_SWITCH_STOP_REASON);\n dashMetrics.createPlaylistTraceMetrics(representationInfo.id, playbackController.getTime() * 1000, playbackController.getPlaybackRate());\n }\n\n function onBufferLevelUpdated(e) {\n dashMetrics.addBufferLevel(type, new Date(), e.bufferLevel * 1000);\n const activeStreamId = playbackController.getStreamController().getActiveStreamInfo().id;\n if (!manifestModel.getValue().doNotUpdateDVRWindowOnBufferUpdated && streamInfo.id === activeStreamId) {\n addDVRMetric();\n }\n }\n\n function onBufferLevelStateChanged(e) {\n dashMetrics.addBufferState(type, e.state, scheduleController.getBufferTarget());\n if (e.state === MetricsConstants.BUFFER_EMPTY && !playbackController.isSeeking()) {\n // logger.info('Buffer is empty! Stalling!');\n dashMetrics.pushPlayListTraceMetrics(new Date(), PlayListTrace.REBUFFERING_REASON);\n }\n }\n\n function onBufferCleared(e) {\n // Remove executed requests not buffered anymore\n fragmentModel.syncExecutedRequestsWithBufferedRange(\n bufferController.getBuffer().getAllBufferRanges(),\n streamInfo.duration);\n\n // If buffer removed ahead current time (QuotaExceededError or automatic buffer pruning) then adjust current index handler time\n if (e.from > playbackController.getTime()) {\n bufferingTime = e.from;\n bufferPruned = true;\n }\n }\n\n function addDVRMetric() {\n const manifestInfo = streamInfo.manifestInfo;\n const isDynamic = manifestInfo.isDynamic;\n const range = timelineConverter.calcSegmentAvailabilityRange(representationController.getCurrentRepresentation(), isDynamic);\n dashMetrics.addDVRInfo(getType(), playbackController.getTime(), manifestInfo, range);\n }\n\n function getRepresentationController() {\n return representationController;\n }\n\n function getBuffer() {\n return bufferController ? bufferController.getBuffer() : null;\n }\n\n function setBuffer(buffer) {\n bufferController.setBuffer(buffer);\n }\n\n function getBufferController() {\n return bufferController;\n }\n\n function getFragmentModel() {\n return fragmentModel;\n }\n\n function updateStreamInfo(newStreamInfo) {\n streamInfo = newStreamInfo;\n if (settings.get().streaming.useAppendWindow) {\n bufferController.updateAppendWindow();\n }\n }\n\n function getStreamInfo() {\n return streamInfo;\n }\n\n function selectMediaInfo(newMediaInfo) {\n if (newMediaInfo !== mediaInfo && (!newMediaInfo || !mediaInfo || (newMediaInfo.type === mediaInfo.type))) {\n mediaInfo = newMediaInfo;\n }\n\n const newRealAdaptation = adapter.getRealAdaptation(streamInfo, mediaInfo);\n const voRepresentations = adapter.getVoRepresentations(mediaInfo);\n\n if (representationController) {\n const realAdaptation = representationController.getData();\n const maxQuality = abrController.getTopQualityIndexFor(type, streamInfo.id);\n const minIdx = abrController.getMinAllowedIndexFor(type);\n\n let quality,\n averageThroughput;\n let bitrate = null;\n\n if ((realAdaptation === null || (realAdaptation.id != newRealAdaptation.id)) && type !== Constants.FRAGMENTED_TEXT) {\n averageThroughput = abrController.getThroughputHistory().getAverageThroughput(type);\n bitrate = averageThroughput || abrController.getInitialBitrateFor(type);\n quality = abrController.getQualityForBitrate(mediaInfo, bitrate);\n } else {\n quality = abrController.getQualityFor(type);\n }\n\n if (minIdx !== undefined && quality < minIdx) {\n quality = minIdx;\n }\n if (quality > maxQuality) {\n quality = maxQuality;\n }\n indexHandler.setMimeType(mediaInfo ? mediaInfo.mimeType : null);\n representationController.updateData(newRealAdaptation, voRepresentations, type, quality);\n }\n }\n\n function addMediaInfo(newMediaInfo, selectNewMediaInfo) {\n if (mediaInfoArr.indexOf(newMediaInfo) === -1) {\n mediaInfoArr.push(newMediaInfo);\n }\n\n if (selectNewMediaInfo) {\n this.selectMediaInfo(newMediaInfo);\n }\n }\n\n function getMediaInfoArr() {\n return mediaInfoArr;\n }\n\n function getMediaInfo() {\n return mediaInfo;\n }\n\n function getMediaSource() {\n return bufferController.getMediaSource();\n }\n\n function setMediaSource(mediaSource) {\n bufferController.setMediaSource(mediaSource, getMediaInfoArr());\n }\n\n function dischargePreBuffer() {\n bufferController.dischargePreBuffer();\n }\n\n function getScheduleController() {\n return scheduleController;\n }\n\n /**\n * Get a specific voRepresentation. If quality parameter is defined, this function will return the voRepresentation for this quality.\n * Otherwise, this function will return the current voRepresentation used by the representationController.\n * @param {number} quality - quality index of the voRepresentaion expected.\n */\n function getRepresentationInfo(quality) {\n let voRepresentation;\n\n if (quality !== undefined) {\n checkInteger(quality);\n voRepresentation = representationController ? representationController.getRepresentationForQuality(quality) : null;\n } else {\n voRepresentation = representationController ? representationController.getCurrentRepresentation() : null;\n }\n\n return adapter.convertDataToRepresentationInfo(voRepresentation);\n }\n\n function isBufferingCompleted() {\n return bufferController ? bufferController.getIsBufferingCompleted() : false;\n }\n\n function getBufferLevel() {\n return bufferController ? bufferController.getBufferLevel() : 0;\n }\n\n function onInitFragmentNeeded(e) {\n // Event propagation may have been stopped (see MssHandler)\n if (!e.sender) return;\n\n if (adapter.getIsTextTrack(mimeType) && !textController.isTextEnabled()) return;\n\n if (bufferController && e.representationId) {\n if (!bufferController.appendInitSegment(e.representationId)) {\n // Init segment not in cache, send new request\n const request = indexHandler ? indexHandler.getInitRequest(getMediaInfo(), representationController.getCurrentRepresentation()) : null;\n scheduleController.processInitRequest(request);\n }\n }\n }\n\n function onMediaFragmentNeeded(e) {\n let request;\n\n // Don't schedule next fragments while pruning to avoid buffer inconsistencies\n if (!bufferController.getIsPruningInProgress()) {\n request = findNextRequest(e.seekTarget, e.replacement);\n if (request) {\n scheduleController.setSeekTarget(NaN);\n if (!e.replacement) {\n if (!isNaN(request.startTime + request.duration)) {\n bufferingTime = request.startTime + request.duration;\n }\n request.delayLoadingTime = new Date().getTime() + scheduleController.getTimeToLoadDelay();\n scheduleController.setTimeToLoadDelay(0);\n }\n }\n }\n\n scheduleController.processMediaRequest(request);\n }\n\n /**\n * Probe the next request. This is used in the CMCD model to get information about the upcoming request. Note: No actual request is performed here.\n * @return {FragmentRequest|null}\n */\n function probeNextRequest() {\n const representationInfo = getRepresentationInfo();\n\n const representation = representationController && representationInfo ?\n representationController.getRepresentationForQuality(representationInfo.quality) : null;\n\n let request = indexHandler.getNextSegmentRequestIdempotent(\n getMediaInfo(),\n representation\n );\n\n return request;\n }\n\n function findNextRequest(seekTarget, requestToReplace) {\n const representationInfo = getRepresentationInfo();\n const hasSeekTarget = !isNaN(seekTarget);\n const currentTime = playbackController.getNormalizedTime();\n let time = hasSeekTarget ? seekTarget : bufferingTime;\n let bufferIsDivided = false;\n let request;\n\n if (isNaN(time) || (getType() === Constants.FRAGMENTED_TEXT && !textController.isTextEnabled())) {\n return null;\n }\n /**\n * This is critical for IE/Safari/EDGE\n * */\n if (bufferController) {\n let range = bufferController.getRangeAt(time);\n const playingRange = bufferController.getRangeAt(currentTime);\n if ((range !== null || playingRange !== null) && !hasSeekTarget) {\n if (!range || (playingRange && playingRange.start != range.start && playingRange.end != range.end)) {\n const hasDiscontinuities = bufferController.getBuffer().hasDiscontinuitiesAfter(currentTime);\n if (hasDiscontinuities && getType() !== Constants.FRAGMENTED_TEXT) {\n fragmentModel.removeExecutedRequestsAfterTime(playingRange.end);\n bufferIsDivided = true;\n }\n }\n }\n }\n\n if (requestToReplace) {\n time = requestToReplace.startTime + (requestToReplace.duration / 2);\n request = getFragmentRequest(representationInfo, time, {\n timeThreshold: 0,\n ignoreIsFinished: true\n });\n } else {\n // Use time just whenever is strictly needed\n const useTime = hasSeekTarget || bufferPruned || bufferIsDivided;\n request = getFragmentRequest(representationInfo,\n useTime ? time : undefined, {\n keepIdx: !useTime\n });\n bufferPruned = false;\n\n // Then, check if this request was downloaded or not\n while (request && request.action !== FragmentRequest.ACTION_COMPLETE && fragmentModel.isFragmentLoaded(request)) {\n // loop until we found not loaded fragment, or no fragment\n request = getFragmentRequest(representationInfo);\n }\n }\n\n return request;\n }\n\n function onMediaFragmentLoaded(e) {\n const chunk = e.chunk;\n\n const bytes = chunk.bytes;\n const quality = chunk.quality;\n const currentRepresentation = getRepresentationInfo(quality);\n\n const voRepresentation = representationController && currentRepresentation ? representationController.getRepresentationForQuality(currentRepresentation.quality) : null;\n const eventStreamMedia = adapter.getEventsFor(currentRepresentation.mediaInfo);\n const eventStreamTrack = adapter.getEventsFor(currentRepresentation, voRepresentation);\n\n if (eventStreamMedia && eventStreamMedia.length > 0 || eventStreamTrack && eventStreamTrack.length > 0) {\n const request = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n quality: quality,\n index: chunk.index\n })[0];\n\n const events = handleInbandEvents(bytes, request, eventStreamMedia, eventStreamTrack);\n eventBus.trigger(Events.INBAND_EVENTS,\n { events: events },\n { streamId: streamInfo.id }\n );\n }\n }\n\n function handleInbandEvents(data, request, mediaInbandEvents, trackInbandEvents) {\n try {\n const eventStreams = {};\n const events = [];\n\n /* Extract the possible schemeIdUri : If a DASH client detects an event message box with a scheme that is not defined in MPD, the client is expected to ignore it */\n const inbandEvents = mediaInbandEvents.concat(trackInbandEvents);\n for (let i = 0, ln = inbandEvents.length; i < ln; i++) {\n eventStreams[inbandEvents[i].schemeIdUri + '/' + inbandEvents[i].value] = inbandEvents[i];\n }\n\n const isoFile = BoxParser(context).getInstance().parse(data);\n const eventBoxes = isoFile.getBoxes('emsg');\n\n if (!eventBoxes || eventBoxes.length === 0) {\n return events;\n }\n\n const sidx = isoFile.getBox('sidx');\n const mediaAnchorTime = sidx && !isNaN(sidx.earliest_presentation_time) && !isNaN(sidx.timescale) ? sidx.earliest_presentation_time / sidx.timescale : request && !isNaN(request.mediaStartTime) ? request.mediaStartTime : 0;\n const fragmentMediaStartTime = Math.max(mediaAnchorTime, 0);\n const voRepresentation = representationController.getCurrentRepresentation();\n\n for (let i = 0, ln = eventBoxes.length; i < ln; i++) {\n const event = adapter.getEvent(eventBoxes[i], eventStreams, fragmentMediaStartTime, voRepresentation);\n\n if (event) {\n events.push(event);\n }\n }\n\n return events;\n } catch (e) {\n return [];\n }\n }\n\n function createBuffer(previousBuffers) {\n return (getBuffer() || bufferController ? bufferController.createBuffer(mediaInfoArr, previousBuffers) : null);\n }\n\n function switchTrackAsked() {\n scheduleController.switchTrackAsked();\n }\n\n function createBufferControllerForType(type) {\n let controller = null;\n\n if (!type) {\n errHandler.error(new DashJSError(Errors.MEDIASOURCE_TYPE_UNSUPPORTED_CODE, Errors.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE + 'not properly defined'));\n return null;\n }\n\n if (type === Constants.VIDEO || type === Constants.AUDIO) {\n controller = BufferController(context).create({\n streamInfo: streamInfo,\n type: type,\n mediaPlayerModel: mediaPlayerModel,\n manifestModel: manifestModel,\n fragmentModel: fragmentModel,\n errHandler: errHandler,\n mediaController: mediaController,\n representationController: representationController,\n adapter: adapter,\n textController: textController,\n abrController: abrController,\n playbackController: playbackController,\n settings: settings\n });\n } else {\n controller = TextBufferController(context).create({\n streamInfo: streamInfo,\n type: type,\n mimeType: mimeType,\n mediaPlayerModel: mediaPlayerModel,\n manifestModel: manifestModel,\n fragmentModel: fragmentModel,\n errHandler: errHandler,\n mediaController: mediaController,\n representationController: representationController,\n adapter: adapter,\n textController: textController,\n abrController: abrController,\n playbackController: playbackController,\n settings: settings\n });\n }\n\n return controller;\n }\n\n\n function getLiveStartTime() {\n if (!isDynamic) return NaN;\n if (!liveEdgeFinder) return NaN;\n\n let liveStartTime = NaN;\n const currentRepresentationInfo = getRepresentationInfo();\n const liveEdge = liveEdgeFinder.getLiveEdge(currentRepresentationInfo);\n\n if (isNaN(liveEdge)) {\n return NaN;\n }\n\n const request = findRequestForLiveEdge(liveEdge, currentRepresentationInfo);\n\n if (request) {\n // When low latency mode is selected but browser doesn't support fetch\n // start at the beginning of the segment to avoid consuming the whole buffer\n if (settings.get().streaming.lowLatencyEnabled) {\n liveStartTime = request.duration < mediaPlayerModel.getLiveDelay() ? request.startTime : request.startTime + request.duration - mediaPlayerModel.getLiveDelay();\n } else {\n liveStartTime = request.startTime;\n }\n }\n\n return liveStartTime;\n }\n\n function findRequestForLiveEdge(liveEdge, currentRepresentationInfo) {\n try {\n let request = null;\n let liveDelay = playbackController.getLiveDelay();\n const dvrWindowSize = !isNaN(streamInfo.manifestInfo.DVRWindowSize) ? streamInfo.manifestInfo.DVRWindowSize : liveDelay;\n const dvrWindowSafetyMargin = 0.1 * dvrWindowSize;\n let startTime;\n\n // Make sure that we have at least a valid request for the end of the DVR window, otherwise we might try forever\n if (!isFinite(dvrWindowSize) || getFragmentRequest(currentRepresentationInfo, liveEdge - dvrWindowSize + dvrWindowSafetyMargin, {\n ignoreIsFinished: true\n })) {\n\n // Try to find a request as close as possible to the targeted live edge\n while (!request && liveDelay <= dvrWindowSize) {\n startTime = liveEdge - liveDelay;\n request = getFragmentRequest(currentRepresentationInfo, startTime, {\n ignoreIsFinished: true\n });\n if (!request) {\n liveDelay += 1; // Increase by one second for each iteration\n }\n }\n }\n\n if (request) {\n playbackController.setLiveDelay(liveDelay, true);\n }\n logger.debug('live edge: ' + liveEdge + ', live delay: ' + liveDelay + ', live target: ' + startTime);\n return request;\n } catch (e) {\n return null;\n }\n }\n\n function onSeekTarget(e) {\n bufferingTime = e.time;\n scheduleController.setSeekTarget(e.time);\n }\n\n function setBufferingTime(value) {\n bufferingTime = value;\n }\n\n function resetIndexHandler() {\n if (indexHandler) {\n indexHandler.resetIndex();\n }\n }\n\n function getInitRequest(quality) {\n checkInteger(quality);\n const representation = representationController ? representationController.getRepresentationForQuality(quality) : null;\n return indexHandler ? indexHandler.getInitRequest(getMediaInfo(), representation) : null;\n }\n\n function getFragmentRequest(representationInfo, time, options) {\n let fragRequest = null;\n\n if (indexHandler) {\n const representation = representationController && representationInfo ? representationController.getRepresentationForQuality(representationInfo.quality) : null;\n\n // if time and options are undefined, it means the next segment is requested\n // otherwise, the segment at this specific time is requested.\n if (time !== undefined && options !== undefined) {\n fragRequest = indexHandler.getSegmentRequestForTime(getMediaInfo(), representation, time, options);\n } else {\n fragRequest = indexHandler.getNextSegmentRequest(getMediaInfo(), representation);\n }\n }\n\n return fragRequest;\n }\n\n function finalisePlayList(time, reason) {\n dashMetrics.pushPlayListTraceMetrics(time, reason);\n }\n\n instance = {\n initialize: initialize,\n getStreamId: getStreamId,\n getType: getType,\n isUpdating: isUpdating,\n getBufferController: getBufferController,\n getFragmentModel: getFragmentModel,\n getScheduleController: getScheduleController,\n getRepresentationController: getRepresentationController,\n getRepresentationInfo: getRepresentationInfo,\n getBufferLevel: getBufferLevel,\n isBufferingCompleted: isBufferingCompleted,\n createBuffer: createBuffer,\n updateStreamInfo: updateStreamInfo,\n getStreamInfo: getStreamInfo,\n selectMediaInfo: selectMediaInfo,\n addMediaInfo: addMediaInfo,\n getLiveStartTime: getLiveStartTime,\n switchTrackAsked: switchTrackAsked,\n getMediaInfoArr: getMediaInfoArr,\n getMediaInfo: getMediaInfo,\n getMediaSource: getMediaSource,\n setMediaSource: setMediaSource,\n dischargePreBuffer: dischargePreBuffer,\n getBuffer: getBuffer,\n setBuffer: setBuffer,\n setBufferingTime: setBufferingTime,\n resetIndexHandler: resetIndexHandler,\n getInitRequest: getInitRequest,\n getFragmentRequest: getFragmentRequest,\n finalisePlayList: finalisePlayList,\n probeNextRequest: probeNextRequest,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nStreamProcessor.__dashjs_factory_name = 'StreamProcessor';\nexport default FactoryMaker.getClassFactory(StreamProcessor);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport DashJSError from './vo/DashJSError';\nimport URLLoader from './net/URLLoader';\nimport {HTTPRequest} from './vo/metrics/HTTPRequest';\nimport TextRequest from './vo/TextRequest';\nimport EventBus from '../core/EventBus';\nimport Events from '../core/events/Events';\nimport FactoryMaker from '../core/FactoryMaker';\nimport Errors from '../core/errors/Errors';\n\nfunction XlinkLoader(config) {\n\n config = config || {};\n const RESOLVE_TO_ZERO = 'urn:mpeg:dash:resolve-to-zero:2013';\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let urlLoader = URLLoader(context).create({\n errHandler: config.errHandler,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n useFetch: config.settings ? config.settings.get().streaming.lowLatencyEnabled : null,\n errors: Errors\n });\n\n let instance;\n\n function load(url, element, resolveObject) {\n const report = function (content, resolveToZero) {\n element.resolved = true;\n element.resolvedContent = content ? content : null;\n\n eventBus.trigger(Events.XLINK_ELEMENT_LOADED, {\n element: element,\n resolveObject: resolveObject,\n error: content || resolveToZero ?\n null :\n new DashJSError(\n Errors.XLINK_LOADER_LOADING_FAILURE_ERROR_CODE,\n Errors.XLINK_LOADER_LOADING_FAILURE_ERROR_MESSAGE + url\n )\n });\n };\n\n if (url === RESOLVE_TO_ZERO) {\n report(null, true);\n } else {\n const request = new TextRequest(url, HTTPRequest.XLINK_EXPANSION_TYPE);\n\n urlLoader.load({\n request: request,\n success: function (data) {\n report(data);\n },\n error: function () {\n report(null);\n }\n });\n }\n }\n\n function reset() {\n if (urlLoader) {\n urlLoader.abort();\n urlLoader = null;\n }\n }\n\n instance = {\n load: load,\n reset: reset\n };\n\n return instance;\n}\n\nXlinkLoader.__dashjs_factory_name = 'XlinkLoader';\nexport default FactoryMaker.getClassFactory(XlinkLoader);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Constants declaration\n * @class\n * @ignore\n * @hideconstructor\n */\nclass Constants {\n\n init() {\n /**\n * @constant {string} STREAM Stream media type. Mainly used to report metrics relative to the full stream\n * @memberof Constants#\n * @static\n */\n this.STREAM = 'stream';\n\n /**\n * @constant {string} VIDEO Video media type\n * @memberof Constants#\n * @static\n */\n this.VIDEO = 'video';\n\n /**\n * @constant {string} AUDIO Audio media type\n * @memberof Constants#\n * @static\n */\n this.AUDIO = 'audio';\n\n /**\n * @constant {string} TEXT Text media type\n * @memberof Constants#\n * @static\n */\n this.TEXT = 'text';\n\n /**\n * @constant {string} FRAGMENTED_TEXT Fragmented text media type\n * @memberof Constants#\n * @static\n */\n this.FRAGMENTED_TEXT = 'fragmentedText';\n\n /**\n * @constant {string} EMBEDDED_TEXT Embedded text media type\n * @memberof Constants#\n * @static\n */\n this.EMBEDDED_TEXT = 'embeddedText';\n\n /**\n * @constant {string} MUXED Muxed (video/audio in the same chunk) media type\n * @memberof Constants#\n * @static\n */\n this.MUXED = 'muxed';\n\n /**\n * @constant {string} IMAGE Image media type\n * @memberof Constants#\n * @static\n */\n this.IMAGE = 'image';\n\n /**\n * @constant {string} STPP STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.STPP = 'stpp';\n\n /**\n * @constant {string} TTML STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.TTML = 'ttml';\n\n /**\n * @constant {string} VTT STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.VTT = 'vtt';\n\n /**\n * @constant {string} WVTT STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.WVTT = 'wvtt';\n\n /**\n * @constant {string} ABR_STRATEGY_DYNAMIC Dynamic Adaptive bitrate algorithm\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_DYNAMIC = 'abrDynamic';\n\n /**\n * @constant {string} ABR_STRATEGY_BOLA Adaptive bitrate algorithm based on Bola (buffer level)\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_BOLA = 'abrBola';\n\n /**\n * @constant {string} ABR_STRATEGY_L2A Adaptive bitrate algorithm based on L2A (online learning)\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_L2A = 'abrL2A';\n\n /**\n * @constant {string} ABR_STRATEGY_LoLP Adaptive bitrate algorithm based on LoL+\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_LoLP = 'abrLoLP';\n\n /**\n * @constant {string} ABR_STRATEGY_THROUGHPUT Adaptive bitrate algorithm based on throughput\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_THROUGHPUT = 'abrThroughput';\n\n /**\n * @constant {string} ABR_FETCH_THROUGHPUT_CALUCUALTION_DOWNLOADED_DATA Throughput calculation based on downloaded data array\n * @memberof Constants#\n * @static\n */\n this.ABR_FETCH_THROUGHPUT_CALCULATION_DOWNLOADED_DATA = 'abrFetchThroughputCalculationDownloadedData';\n\n /**\n * @constant {string} ABR_FETCH_THROUGHPUT_CALCULATION_MOOF_PARSING Throughput calculation based on moof parsing\n * @memberof Constants#\n * @static\n */\n this.ABR_FETCH_THROUGHPUT_CALCULATION_MOOF_PARSING = 'abrFetchThroughputCalculationMoofParsing';\n\n /**\n * @constant {string} LIVE_CATCHUP_MODE_DEFAULT Throughput calculation based on moof parsing\n * @memberof Constants#\n * @static\n */\n this.LIVE_CATCHUP_MODE_DEFAULT = 'liveCatchupModeDefault';\n\n /**\n * @constant {string} LIVE_CATCHUP_MODE_LOLP Throughput calculation based on moof parsing\n * @memberof Constants#\n * @static\n */\n this.LIVE_CATCHUP_MODE_LOLP = 'liveCatchupModeLoLP';\n\n /**\n * @constant {string} MOVING_AVERAGE_SLIDING_WINDOW Moving average sliding window\n * @memberof Constants#\n * @static\n */\n this.MOVING_AVERAGE_SLIDING_WINDOW = 'slidingWindow';\n\n /**\n * @constant {string} EWMA Exponential moving average\n * @memberof Constants#\n * @static\n */\n this.MOVING_AVERAGE_EWMA = 'ewma';\n\n /**\n * @constant {string} BAD_ARGUMENT_ERROR Invalid Arguments type of error\n * @memberof Constants#\n * @static\n */\n this.BAD_ARGUMENT_ERROR = 'Invalid Arguments';\n\n /**\n * @constant {string} MISSING_CONFIG_ERROR Missing configuration parameters type of error\n * @memberof Constants#\n * @static\n */\n this.MISSING_CONFIG_ERROR = 'Missing config parameter(s)';\n\n /**\n * @constant {string} TRACK_SWITCH_MODE_ALWAYS_REPLACE used to clear the buffered data (prior to current playback position) after track switch. Default for audio\n * @memberof Constants#\n * @static\n */\n this.TRACK_SWITCH_MODE_ALWAYS_REPLACE = 'alwaysReplace';\n\n /**\n * @constant {string} TRACK_SWITCH_MODE_NEVER_REPLACE used to forbid clearing the buffered data (prior to current playback position) after track switch. Defers to fastSwitchEnabled for placement of new data. Default for video\n * @memberof Constants#\n * @static\n */\n this.TRACK_SWITCH_MODE_NEVER_REPLACE = 'neverReplace';\n\n /**\n * @constant {string} TRACK_SELECTION_MODE_HIGHEST_BITRATE makes the player select the track with a highest bitrate. This mode is a default mode.\n * @memberof Constants#\n * @static\n */\n this.TRACK_SELECTION_MODE_HIGHEST_BITRATE = 'highestBitrate';\n\n /**\n * @constant {string} TRACK_SELECTION_MODE_WIDEST_RANGE this mode makes the player select the track with a widest range of bitrates\n * @memberof Constants#\n * @static\n */\n this.TRACK_SELECTION_MODE_WIDEST_RANGE = 'widestRange';\n\n this.LOCATION = 'Location';\n this.INITIALIZE = 'initialize';\n this.TEXT_SHOWING = 'showing';\n this.TEXT_HIDDEN = 'hidden';\n this.CC1 = 'CC1';\n this.CC3 = 'CC3';\n this.UTF8 = 'utf-8';\n this.SCHEME_ID_URI = 'schemeIdUri';\n this.START_TIME = 'starttime';\n this.SERVICE_DESCRIPTION_LL_SCHEME = 'urn:dvb:dash:lowlatency:scope:2019';\n this.SUPPLEMENTAL_PROPERTY_LL_SCHEME = 'urn:dvb:dash:lowlatency:critical:2019';\n this.XML = 'XML';\n this.ARRAY_BUFFER = 'ArrayBuffer';\n this.DVB_REPORTING_URL = 'dvb:reportingUrl';\n this.DVB_PROBABILITY = 'dvb:probability';\n }\n\n constructor() {\n this.init();\n }\n}\n\nconst constants = new Constants();\nexport default constants;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nexport default {\n LEVELS: {\n SUGGESTION: 'Suggestion',\n WARNING: 'Warning',\n ERROR: 'Error'\n },\n EVENTS: {\n NO_UTC_TIMING_ELEMENT: {\n key: 'NO_UTC_TIMING_ELEMENT',\n message: 'No UTCTiming element is present in the manifest. You may experience playback failures. For a detailed validation use https://conformance.dashif.org/'\n },\n NON_COMPLIANT_SMPTE_IMAGE_ATTRIBUTE: {\n key: 'NON_COMPLIANT_SMPTE_IMAGE_ATTRIBUTE',\n message: 'SMPTE 2052-1:2013 defines the attribute name as \"imageType\" and does not define \"imagetype\"'\n }\n }\n};\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Constants declaration\n * @class\n * @ignore\n * @hideconstructor\n */\nclass Constants {\n\n init() {\n /**\n * @constant {string} STREAM Stream media type. Mainly used to report metrics relative to the full stream\n * @memberof Constants#\n * @static\n */\n this.STREAM = 'stream';\n\n /**\n * @constant {string} VIDEO Video media type\n * @memberof Constants#\n * @static\n */\n this.VIDEO = 'video';\n\n /**\n * @constant {string} AUDIO Audio media type\n * @memberof Constants#\n * @static\n */\n this.AUDIO = 'audio';\n\n /**\n * @constant {string} TEXT Text media type\n * @memberof Constants#\n * @static\n */\n this.TEXT = 'text';\n\n /**\n * @constant {string} FRAGMENTED_TEXT Fragmented text media type\n * @memberof Constants#\n * @static\n */\n this.FRAGMENTED_TEXT = 'fragmentedText';\n\n /**\n * @constant {string} EMBEDDED_TEXT Embedded text media type\n * @memberof Constants#\n * @static\n */\n this.EMBEDDED_TEXT = 'embeddedText';\n\n /**\n * @constant {string} MUXED Muxed (video/audio in the same chunk) media type\n * @memberof Constants#\n * @static\n */\n this.MUXED = 'muxed';\n\n /**\n * @constant {string} IMAGE Image media type\n * @memberof Constants#\n * @static\n */\n this.IMAGE = 'image';\n\n /**\n * @constant {string} STPP STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.STPP = 'stpp';\n\n /**\n * @constant {string} TTML STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.TTML = 'ttml';\n\n /**\n * @constant {string} VTT STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.VTT = 'vtt';\n\n /**\n * @constant {string} WVTT STTP Subtitles format\n * @memberof Constants#\n * @static\n */\n this.WVTT = 'wvtt';\n\n /**\n * @constant {string} ABR_STRATEGY_DYNAMIC Dynamic Adaptive bitrate algorithm\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_DYNAMIC = 'abrDynamic';\n\n /**\n * @constant {string} ABR_STRATEGY_BOLA Adaptive bitrate algorithm based on Bola (buffer level)\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_BOLA = 'abrBola';\n\n /**\n * @constant {string} ABR_STRATEGY_L2A Adaptive bitrate algorithm based on L2A (online learning)\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_L2A = 'abrL2A';\n\n /**\n * @constant {string} ABR_STRATEGY_LoLP Adaptive bitrate algorithm based on LoL+\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_LoLP = 'abrLoLP';\n\n /**\n * @constant {string} ABR_STRATEGY_THROUGHPUT Adaptive bitrate algorithm based on throughput\n * @memberof Constants#\n * @static\n */\n this.ABR_STRATEGY_THROUGHPUT = 'abrThroughput';\n\n /**\n * @constant {string} ABR_FETCH_THROUGHPUT_CALUCUALTION_DOWNLOADED_DATA Throughput calculation based on downloaded data array\n * @memberof Constants#\n * @static\n */\n this.ABR_FETCH_THROUGHPUT_CALCULATION_DOWNLOADED_DATA = 'abrFetchThroughputCalculationDownloadedData';\n\n /**\n * @constant {string} ABR_FETCH_THROUGHPUT_CALCULATION_MOOF_PARSING Throughput calculation based on moof parsing\n * @memberof Constants#\n * @static\n */\n this.ABR_FETCH_THROUGHPUT_CALCULATION_MOOF_PARSING = 'abrFetchThroughputCalculationMoofParsing';\n\n /**\n * @constant {string} LIVE_CATCHUP_MODE_DEFAULT Throughput calculation based on moof parsing\n * @memberof Constants#\n * @static\n */\n this.LIVE_CATCHUP_MODE_DEFAULT = 'liveCatchupModeDefault';\n\n /**\n * @constant {string} LIVE_CATCHUP_MODE_LOLP Throughput calculation based on moof parsing\n * @memberof Constants#\n * @static\n */\n this.LIVE_CATCHUP_MODE_LOLP = 'liveCatchupModeLoLP';\n\n /**\n * @constant {string} MOVING_AVERAGE_SLIDING_WINDOW Moving average sliding window\n * @memberof Constants#\n * @static\n */\n this.MOVING_AVERAGE_SLIDING_WINDOW = 'slidingWindow';\n\n /**\n * @constant {string} EWMA Exponential moving average\n * @memberof Constants#\n * @static\n */\n this.MOVING_AVERAGE_EWMA = 'ewma';\n\n /**\n * @constant {string} BAD_ARGUMENT_ERROR Invalid Arguments type of error\n * @memberof Constants#\n * @static\n */\n this.BAD_ARGUMENT_ERROR = 'Invalid Arguments';\n\n /**\n * @constant {string} MISSING_CONFIG_ERROR Missing configuration parameters type of error\n * @memberof Constants#\n * @static\n */\n this.MISSING_CONFIG_ERROR = 'Missing config parameter(s)';\n\n /**\n * @constant {string} TRACK_SWITCH_MODE_ALWAYS_REPLACE used to clear the buffered data (prior to current playback position) after track switch. Default for audio\n * @memberof Constants#\n * @static\n */\n this.TRACK_SWITCH_MODE_ALWAYS_REPLACE = 'alwaysReplace';\n\n /**\n * @constant {string} TRACK_SWITCH_MODE_NEVER_REPLACE used to forbid clearing the buffered data (prior to current playback position) after track switch. Defers to fastSwitchEnabled for placement of new data. Default for video\n * @memberof Constants#\n * @static\n */\n this.TRACK_SWITCH_MODE_NEVER_REPLACE = 'neverReplace';\n\n /**\n * @constant {string} TRACK_SELECTION_MODE_HIGHEST_BITRATE makes the player select the track with a highest bitrate. This mode is a default mode.\n * @memberof Constants#\n * @static\n */\n this.TRACK_SELECTION_MODE_HIGHEST_BITRATE = 'highestBitrate';\n\n /**\n * @constant {string} TRACK_SELECTION_MODE_HIGHEST_EFFICIENCY makes the player select the track with the lowest bitrate per pixel average.\n * @memberof Constants#\n * @static\n */\n this.TRACK_SELECTION_MODE_HIGHEST_EFFICIENCY = 'highestEfficiency';\n\n /**\n * @constant {string} TRACK_SELECTION_MODE_WIDEST_RANGE makes the player select the track with a widest range of bitrates.\n * @memberof Constants#\n * @static\n */\n this.TRACK_SELECTION_MODE_WIDEST_RANGE = 'widestRange';\n\n this.LOCATION = 'Location';\n this.INITIALIZE = 'initialize';\n this.TEXT_SHOWING = 'showing';\n this.TEXT_HIDDEN = 'hidden';\n this.CC1 = 'CC1';\n this.CC3 = 'CC3';\n this.UTF8 = 'utf-8';\n this.SCHEME_ID_URI = 'schemeIdUri';\n this.START_TIME = 'starttime';\n this.SERVICE_DESCRIPTION_LL_SCHEME = 'urn:dvb:dash:lowlatency:scope:2019';\n this.SUPPLEMENTAL_PROPERTY_LL_SCHEME = 'urn:dvb:dash:lowlatency:critical:2019';\n this.XML = 'XML';\n this.ARRAY_BUFFER = 'ArrayBuffer';\n this.DVB_REPORTING_URL = 'dvb:reportingUrl';\n this.DVB_PROBABILITY = 'dvb:probability';\n }\n\n constructor() {\n this.init();\n }\n}\n\nconst constants = new Constants();\nexport default constants;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Metrics Constants declaration\n * @class\n * @ignore\n */\nclass MetricsConstants {\n\n init () {\n this.TCP_CONNECTION = 'TcpList';\n this.HTTP_REQUEST = 'HttpList';\n this.TRACK_SWITCH = 'RepSwitchList';\n this.BUFFER_LEVEL = 'BufferLevel';\n this.BUFFER_LOADED = 'bufferLoaded';\n this.ABANDON_LOAD = 'abandonload';\n this.ALLOW_LOAD = 'allowload';\n this.BUFFER_EMPTY = 'bufferStalled';\n this.BUFFER_STATE = 'BufferState';\n this.DVR_INFO = 'DVRInfo';\n this.DROPPED_FRAMES = 'DroppedFrames';\n this.SCHEDULING_INFO = 'SchedulingInfo';\n this.REQUESTS_QUEUE = 'RequestsQueue';\n this.MANIFEST_UPDATE = 'ManifestUpdate';\n this.MANIFEST_UPDATE_STREAM_INFO = 'ManifestUpdatePeriodInfo';\n this.MANIFEST_UPDATE_TRACK_INFO = 'ManifestUpdateRepresentationInfo';\n this.PLAY_LIST = 'PlayList';\n this.DVB_ERRORS = 'DVBErrors';\n }\n\n constructor() {\n this.init();\n }\n}\n\nlet constants = new MetricsConstants();\nexport default constants;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Protection Constants declaration\n * @class\n * @ignore\n */\nclass ProtectionConstants {\n\n init () {\n this.CLEARKEY_KEYSTEM_STRING = 'org.w3.clearkey';\n this.WIDEVINE_KEYSTEM_STRING = 'com.widevine.alpha';\n this.PLAYREADY_KEYSTEM_STRING = 'com.microsoft.playready';\n }\n\n constructor () {\n this.init();\n }\n}\n\nlet constants = new ProtectionConstants();\nexport default constants;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport ABRRulesCollection from '../rules/abr/ABRRulesCollection';\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport BitrateInfo from '../vo/BitrateInfo';\nimport FragmentModel from '../models/FragmentModel';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport RulesContext from '../rules/RulesContext';\nimport SwitchRequest from '../rules/SwitchRequest';\nimport SwitchRequestHistory from '../rules/SwitchRequestHistory';\nimport DroppedFramesHistory from '../rules/DroppedFramesHistory';\nimport ThroughputHistory from '../rules/ThroughputHistory';\nimport Debug from '../../core/Debug';\nimport { HTTPRequest } from '../vo/metrics/HTTPRequest';\nimport { checkInteger } from '../utils/SupervisorTools';\n\nconst DEFAULT_VIDEO_BITRATE = 1000;\nconst DEFAULT_AUDIO_BITRATE = 100;\nconst QUALITY_DEFAULT = 0;\n\nfunction AbrController() {\n\n const context = this.context;\n const debug = Debug(context).getInstance();\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n abrRulesCollection,\n streamController,\n topQualities,\n qualityDict,\n streamProcessorDict,\n abandonmentStateDict,\n abandonmentTimeout,\n windowResizeEventCalled,\n elementWidth,\n elementHeight,\n adapter,\n videoModel,\n mediaPlayerModel,\n domStorage,\n playbackIndex,\n switchHistoryDict,\n droppedFramesHistory,\n throughputHistory,\n isUsingBufferOccupancyABRDict,\n isUsingL2AABRDict,\n isUsingLoLPBRDict,\n dashMetrics,\n settings;\n\n function setup() {\n logger = debug.getLogger(instance);\n resetInitialSettings();\n }\n\n function registerStreamType(type, streamProcessor) {\n switchHistoryDict[type] = switchHistoryDict[type] || SwitchRequestHistory(context).create();\n streamProcessorDict[type] = streamProcessor;\n abandonmentStateDict[type] = abandonmentStateDict[type] || {};\n abandonmentStateDict[type].state = MetricsConstants.ALLOW_LOAD;\n isUsingBufferOccupancyABRDict[type] = false;\n isUsingL2AABRDict[type] = false;\n isUsingLoLPBRDict[type] = false;\n eventBus.on(Events.LOADING_PROGRESS, onFragmentLoadProgress, instance);\n if (type === Constants.VIDEO) {\n eventBus.on(Events.QUALITY_CHANGE_RENDERED, onQualityChangeRendered, instance);\n droppedFramesHistory = droppedFramesHistory || DroppedFramesHistory(context).create();\n setElementSize();\n }\n eventBus.on(Events.METRIC_ADDED, onMetricAdded, instance);\n eventBus.on(Events.PERIOD_SWITCH_COMPLETED, createAbrRulesCollection, instance);\n\n throughputHistory = throughputHistory || ThroughputHistory(context).create({\n settings: settings\n });\n }\n\n function unRegisterStreamType(type) {\n delete streamProcessorDict[type];\n }\n\n function createAbrRulesCollection() {\n abrRulesCollection = ABRRulesCollection(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n });\n\n abrRulesCollection.initialize();\n }\n\n function resetInitialSettings() {\n topQualities = {};\n qualityDict = {};\n abandonmentStateDict = {};\n streamProcessorDict = {};\n switchHistoryDict = {};\n isUsingBufferOccupancyABRDict = {};\n isUsingL2AABRDict = {};\n isUsingLoLPBRDict = {};\n if (windowResizeEventCalled === undefined) {\n windowResizeEventCalled = false;\n }\n playbackIndex = undefined;\n droppedFramesHistory = undefined;\n throughputHistory = undefined;\n clearTimeout(abandonmentTimeout);\n abandonmentTimeout = null;\n }\n\n function reset() {\n\n resetInitialSettings();\n\n eventBus.off(Events.LOADING_PROGRESS, onFragmentLoadProgress, instance);\n eventBus.off(Events.QUALITY_CHANGE_RENDERED, onQualityChangeRendered, instance);\n eventBus.off(Events.METRIC_ADDED, onMetricAdded, instance);\n eventBus.off(Events.PERIOD_SWITCH_COMPLETED, createAbrRulesCollection, instance);\n\n if (abrRulesCollection) {\n abrRulesCollection.reset();\n }\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.domStorage) {\n domStorage = config.domStorage;\n }\n if (config.mediaPlayerModel) {\n mediaPlayerModel = config.mediaPlayerModel;\n }\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n function checkConfig() {\n if (!domStorage || !domStorage.hasOwnProperty('getSavedBitrateSettings')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function onQualityChangeRendered(e) {\n if (e.mediaType === Constants.VIDEO) {\n playbackIndex = e.oldQuality;\n droppedFramesHistory.push(playbackIndex, videoModel.getPlaybackQuality());\n }\n }\n\n function onMetricAdded(e) {\n if (e.metric === MetricsConstants.HTTP_REQUEST && e.value && e.value.type === HTTPRequest.MEDIA_SEGMENT_TYPE && (e.mediaType === Constants.AUDIO || e.mediaType === Constants.VIDEO)) {\n throughputHistory.push(e.mediaType, e.value, settings.get().streaming.abr.useDeadTimeLatency);\n }\n\n if (e.metric === MetricsConstants.BUFFER_LEVEL && (e.mediaType === Constants.AUDIO || e.mediaType === Constants.VIDEO)) {\n _updateAbrStrategy(e.mediaType, 0.001 * e.value.level);\n }\n }\n\n function getTopQualityIndexFor(type, id) {\n let idx;\n topQualities[id] = topQualities[id] || {};\n\n if (!topQualities[id].hasOwnProperty(type)) {\n topQualities[id][type] = 0;\n }\n\n idx = checkMaxBitrate(topQualities[id][type], type);\n idx = checkMaxRepresentationRatio(idx, type, topQualities[id][type]);\n idx = checkPortalSize(idx, type);\n return idx;\n }\n\n /**\n * Gets top BitrateInfo for the player\n * @param {string} type - 'video' or 'audio' are the type options.\n * @returns {BitrateInfo | null}\n */\n function getTopBitrateInfoFor(type) {\n if (type && streamProcessorDict && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n if (streamInfo && streamInfo.id) {\n const idx = getTopQualityIndexFor(type, streamInfo.id);\n const bitrates = getBitrateList(streamProcessorDict[type].getMediaInfo());\n return bitrates[idx] ? bitrates[idx] : null;\n }\n }\n return null;\n }\n\n /**\n * @param {string} type\n * @returns {number} A value of the initial bitrate, kbps\n * @memberof AbrController#\n */\n function getInitialBitrateFor(type) {\n checkConfig();\n if (type === Constants.TEXT || type === Constants.FRAGMENTED_TEXT) {\n return NaN;\n }\n const savedBitrate = domStorage.getSavedBitrateSettings(type);\n let configBitrate = settings.get().streaming.abr.initialBitrate[type];\n let configRatio = settings.get().streaming.abr.initialRepresentationRatio[type];\n\n if (configBitrate === -1) {\n if (configRatio > -1) {\n const representation = adapter.getAdaptationForType(0, type).Representation;\n if (Array.isArray(representation)) {\n const repIdx = Math.max(Math.round(representation.length * configRatio) - 1, 0);\n configBitrate = representation[repIdx].bandwidth;\n } else {\n configBitrate = 0;\n }\n } else if (!isNaN(savedBitrate)) {\n configBitrate = savedBitrate;\n } else {\n configBitrate = (type === Constants.VIDEO) ? DEFAULT_VIDEO_BITRATE : DEFAULT_AUDIO_BITRATE;\n }\n }\n\n return configBitrate;\n }\n\n function getMaxAllowedBitrateFor(type) {\n return settings.get().streaming.abr.maxBitrate[type];\n }\n\n function getMinAllowedBitrateFor(type) {\n return settings.get().streaming.abr.minBitrate[type];\n }\n\n function getMaxAllowedIndexFor(type) {\n const maxBitrate = getMaxAllowedBitrateFor(type);\n if (maxBitrate > -1) {\n return getQualityForBitrate(streamProcessorDict[type].getMediaInfo(), maxBitrate);\n } else {\n return undefined;\n }\n }\n\n function getMinAllowedIndexFor(type) {\n const minBitrate = getMinAllowedBitrateFor(type);\n\n if (minBitrate > -1) {\n const mediaInfo = streamProcessorDict[type].getMediaInfo();\n const bitrateList = getBitrateList(mediaInfo);\n // This returns the quality index <= for the given bitrate\n let minIdx = getQualityForBitrate(mediaInfo, minBitrate);\n if (bitrateList[minIdx] && minIdx < bitrateList.length - 1 && bitrateList[minIdx].bitrate < minBitrate * 1000) {\n minIdx++; // Go to the next bitrate\n }\n return minIdx;\n } else {\n return undefined;\n }\n }\n\n function checkPlaybackQuality(type) {\n if (type && streamProcessorDict && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n const streamId = streamInfo ? streamInfo.id : null;\n const oldQuality = getQualityFor(type);\n const rulesContext = RulesContext(context).create({\n abrController: instance,\n streamProcessor: streamProcessorDict[type],\n currentValue: oldQuality,\n switchHistory: switchHistoryDict[type],\n droppedFramesHistory: droppedFramesHistory,\n useBufferOccupancyABR: useBufferOccupancyABR(type),\n useL2AABR: useL2AABR(type),\n useLoLPABR: useLoLPABR(type),\n videoModel\n });\n\n if (droppedFramesHistory) {\n const playbackQuality = videoModel.getPlaybackQuality();\n if (playbackQuality) {\n droppedFramesHistory.push(playbackIndex, playbackQuality);\n }\n }\n if (!!settings.get().streaming.abr.autoSwitchBitrate[type]) {\n const minIdx = getMinAllowedIndexFor(type);\n const topQualityIdx = getTopQualityIndexFor(type, streamId);\n const switchRequest = abrRulesCollection.getMaxQuality(rulesContext);\n let newQuality = switchRequest.quality;\n if (minIdx !== undefined && ((newQuality > SwitchRequest.NO_CHANGE) ? newQuality : oldQuality) < minIdx) {\n newQuality = minIdx;\n }\n if (newQuality > topQualityIdx) {\n newQuality = topQualityIdx;\n }\n\n switchHistoryDict[type].push({oldValue: oldQuality, newValue: newQuality});\n\n if (newQuality > SwitchRequest.NO_CHANGE && newQuality != oldQuality) {\n if (abandonmentStateDict[type].state === MetricsConstants.ALLOW_LOAD || newQuality > oldQuality) {\n changeQuality(type, oldQuality, newQuality, topQualityIdx, switchRequest.reason);\n }\n } else if (settings.get().debug.logLevel === Debug.LOG_LEVEL_DEBUG) {\n const bufferLevel = dashMetrics.getCurrentBufferLevel(type, true);\n logger.debug('[' + type + '] stay on ' + oldQuality + '/' + topQualityIdx + ' (buffer: ' + bufferLevel + ')');\n }\n }\n }\n }\n\n function setPlaybackQuality(type, streamInfo, newQuality, reason) {\n const id = streamInfo.id;\n const oldQuality = getQualityFor(type);\n\n checkInteger(newQuality);\n\n const topQualityIdx = getTopQualityIndexFor(type, id);\n if (newQuality !== oldQuality && newQuality >= 0 && newQuality <= topQualityIdx) {\n changeQuality(type, oldQuality, newQuality, topQualityIdx, reason);\n }\n }\n\n function changeQuality(type, oldQuality, newQuality, topQualityIdx, reason) {\n if (type && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n const id = streamInfo ? streamInfo.id : null;\n if (settings.get().debug.logLevel === Debug.LOG_LEVEL_DEBUG) {\n const bufferLevel = dashMetrics.getCurrentBufferLevel(type);\n logger.info('[' + type + '] switch from ' + oldQuality + ' to ' + newQuality + '/' + topQualityIdx + ' (buffer: ' + bufferLevel + ') ' + (reason ? JSON.stringify(reason) : '.'));\n }\n setQualityFor(type, id, newQuality);\n eventBus.trigger(Events.QUALITY_CHANGE_REQUESTED,\n {\n oldQuality: oldQuality,\n newQuality: newQuality,\n reason: reason\n },\n { streamId: streamInfo.id, mediaType: type }\n );\n const bitrate = throughputHistory.getAverageThroughput(type);\n if (!isNaN(bitrate)) {\n domStorage.setSavedBitrateSettings(type, bitrate);\n }\n }\n }\n\n function setAbandonmentStateFor(type, state) {\n abandonmentStateDict[type].state = state;\n }\n\n function getAbandonmentStateFor(type) {\n return abandonmentStateDict[type] ? abandonmentStateDict[type].state : null;\n }\n\n /**\n * @param {MediaInfo} mediaInfo\n * @param {number} bitrate A bitrate value, kbps\n * @param {number} latency Expected latency of connection, ms\n * @returns {number} A quality index <= for the given bitrate\n * @memberof AbrController#\n */\n function getQualityForBitrate(mediaInfo, bitrate, latency) {\n const voRepresentation = mediaInfo && mediaInfo.type ? streamProcessorDict[mediaInfo.type].getRepresentationInfo() : null;\n\n if (settings.get().streaming.abr.useDeadTimeLatency && latency && voRepresentation && voRepresentation.fragmentDuration) {\n latency = latency / 1000;\n const fragmentDuration = voRepresentation.fragmentDuration;\n if (latency > fragmentDuration) {\n return 0;\n } else {\n const deadTimeRatio = latency / fragmentDuration;\n bitrate = bitrate * (1 - deadTimeRatio);\n }\n }\n\n const bitrateList = getBitrateList(mediaInfo);\n\n for (let i = bitrateList.length - 1; i >= 0; i--) {\n const bitrateInfo = bitrateList[i];\n if (bitrate * 1000 >= bitrateInfo.bitrate) {\n return i;\n }\n }\n return QUALITY_DEFAULT;\n }\n\n /**\n * @param {MediaInfo} mediaInfo\n * @returns {Array|null} A list of {@link BitrateInfo} objects\n * @memberof AbrController#\n */\n function getBitrateList(mediaInfo) {\n const infoList = [];\n if (!mediaInfo || !mediaInfo.bitrateList) return infoList;\n\n const bitrateList = mediaInfo.bitrateList;\n const type = mediaInfo.type;\n\n let bitrateInfo;\n\n for (let i = 0, ln = bitrateList.length; i < ln; i++) {\n bitrateInfo = new BitrateInfo();\n bitrateInfo.mediaType = type;\n bitrateInfo.qualityIndex = i;\n bitrateInfo.bitrate = bitrateList[i].bandwidth;\n bitrateInfo.width = bitrateList[i].width;\n bitrateInfo.height = bitrateList[i].height;\n bitrateInfo.scanType = bitrateList[i].scanType;\n infoList.push(bitrateInfo);\n }\n\n return infoList;\n }\n\n function _updateAbrStrategy(mediaType, bufferLevel) {\n const strategy = settings.get().streaming.abr.ABRStrategy;\n\n if (strategy === Constants.ABR_STRATEGY_L2A) {\n isUsingBufferOccupancyABRDict[mediaType] = false;\n isUsingLoLPBRDict[mediaType] = false;\n isUsingL2AABRDict[mediaType] = true;\n return;\n }\n if (strategy === Constants.ABR_STRATEGY_LoLP) {\n isUsingBufferOccupancyABRDict[mediaType] = false;\n isUsingLoLPBRDict[mediaType] = true;\n isUsingL2AABRDict[mediaType] = false;\n return;\n } else if (strategy === Constants.ABR_STRATEGY_BOLA) {\n isUsingBufferOccupancyABRDict[mediaType] = true;\n isUsingLoLPBRDict[mediaType] = false;\n isUsingL2AABRDict[mediaType] = false;\n return;\n } else if (strategy === Constants.ABR_STRATEGY_THROUGHPUT) {\n isUsingBufferOccupancyABRDict[mediaType] = false;\n isUsingLoLPBRDict[mediaType] = false;\n isUsingL2AABRDict[mediaType] = false;\n return;\n }\n // else ABR_STRATEGY_DYNAMIC\n _updateDynamicAbrStrategy(mediaType, bufferLevel);\n }\n\n function _updateDynamicAbrStrategy(mediaType, bufferLevel) {\n const stableBufferTime = mediaPlayerModel.getStableBufferTime();\n const switchOnThreshold = stableBufferTime;\n const switchOffThreshold = 0.5 * stableBufferTime;\n\n const useBufferABR = isUsingBufferOccupancyABRDict[mediaType];\n const newUseBufferABR = bufferLevel > (useBufferABR ? switchOffThreshold : switchOnThreshold); // use hysteresis to avoid oscillating rules\n isUsingBufferOccupancyABRDict[mediaType] = newUseBufferABR;\n\n if (newUseBufferABR !== useBufferABR) {\n if (newUseBufferABR) {\n logger.info('[' + mediaType + '] switching from throughput to buffer occupancy ABR rule (buffer: ' + bufferLevel.toFixed(3) + ').');\n } else {\n logger.info('[' + mediaType + '] switching from buffer occupancy to throughput ABR rule (buffer: ' + bufferLevel.toFixed(3) + ').');\n }\n }\n }\n\n function useBufferOccupancyABR(mediaType) {\n return isUsingBufferOccupancyABRDict[mediaType];\n }\n\n function useL2AABR(mediaType) {\n return isUsingL2AABRDict[mediaType];\n }\n\n function useLoLPABR(mediaType) {\n return isUsingLoLPBRDict[mediaType];\n }\n\n function getThroughputHistory() {\n return throughputHistory;\n }\n\n function updateTopQualityIndex(mediaInfo) {\n const type = mediaInfo.type;\n const streamId = mediaInfo.streamInfo.id;\n const max = mediaInfo.representationCount - 1;\n\n setTopQualityIndex(type, streamId, max);\n\n return max;\n }\n\n function isPlayingAtTopQuality(streamInfo) {\n const streamId = streamInfo ? streamInfo.id : null;\n const audioQuality = getQualityFor(Constants.AUDIO);\n const videoQuality = getQualityFor(Constants.VIDEO);\n\n const isAtTop = (audioQuality === getTopQualityIndexFor(Constants.AUDIO, streamId)) &&\n (videoQuality === getTopQualityIndexFor(Constants.VIDEO, streamId));\n\n return isAtTop;\n }\n\n function getQualityFor(type) {\n if (type && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n const id = streamInfo ? streamInfo.id : null;\n let quality;\n\n if (id) {\n qualityDict[id] = qualityDict[id] || {};\n\n if (!qualityDict[id].hasOwnProperty(type)) {\n qualityDict[id][type] = QUALITY_DEFAULT;\n }\n\n quality = qualityDict[id][type];\n return quality;\n }\n }\n return QUALITY_DEFAULT;\n }\n\n function setQualityFor(type, id, value) {\n qualityDict[id] = qualityDict[id] || {};\n qualityDict[id][type] = value;\n }\n\n function setTopQualityIndex(type, id, value) {\n topQualities[id] = topQualities[id] || {};\n topQualities[id][type] = value;\n }\n\n function checkMaxBitrate(idx, type) {\n let newIdx = idx;\n\n if (!streamProcessorDict[type]) {\n return newIdx;\n }\n\n const minIdx = getMinAllowedIndexFor(type);\n if (minIdx !== undefined) {\n newIdx = Math.max(idx, minIdx);\n }\n\n const maxIdx = getMaxAllowedIndexFor(type);\n if (maxIdx !== undefined) {\n newIdx = Math.min(newIdx, maxIdx);\n }\n\n return newIdx;\n }\n\n function checkMaxRepresentationRatio(idx, type, maxIdx) {\n const maxRepresentationRatio = settings.get().streaming.abr.maxRepresentationRatio[type];\n if (isNaN(maxRepresentationRatio) || maxRepresentationRatio >= 1 || maxRepresentationRatio < 0) {\n return idx;\n }\n return Math.min(idx, Math.round(maxIdx * maxRepresentationRatio));\n }\n\n function setWindowResizeEventCalled(value) {\n windowResizeEventCalled = value;\n }\n\n function setElementSize() {\n if (videoModel) {\n const hasPixelRatio = settings.get().streaming.abr.usePixelRatioInLimitBitrateByPortal && window.hasOwnProperty('devicePixelRatio');\n const pixelRatio = hasPixelRatio ? window.devicePixelRatio : 1;\n elementWidth = videoModel.getClientWidth() * pixelRatio;\n elementHeight = videoModel.getClientHeight() * pixelRatio;\n }\n }\n\n function checkPortalSize(idx, type) {\n if (type !== Constants.VIDEO || !settings.get().streaming.abr.limitBitrateByPortal || !streamProcessorDict[type]) {\n return idx;\n }\n\n if (!windowResizeEventCalled) {\n setElementSize();\n }\n\n const representation = adapter.getAdaptationForType(0, type).Representation;\n let newIdx = idx;\n\n if (elementWidth > 0 && elementHeight > 0) {\n while (\n newIdx > 0 &&\n representation[newIdx] &&\n elementWidth < representation[newIdx].width &&\n elementWidth - representation[newIdx - 1].width < representation[newIdx].width - elementWidth) {\n newIdx = newIdx - 1;\n }\n\n // Make sure that in case of multiple representation elements have same\n // resolution, every such element is included\n while (newIdx < representation.length - 1 && representation[newIdx].width === representation[newIdx + 1].width) {\n newIdx = newIdx + 1;\n }\n }\n\n return newIdx;\n }\n\n function onFragmentLoadProgress(e) {\n const type = e.request.mediaType;\n if (!!settings.get().streaming.abr.autoSwitchBitrate[type]) {\n const streamProcessor = streamProcessorDict[type];\n if (!streamProcessor) return; // There may be a fragment load in progress when we switch periods and recreated some controllers.\n\n const rulesContext = RulesContext(context).create({\n abrController: instance,\n streamProcessor: streamProcessor,\n currentRequest: e.request,\n useBufferOccupancyABR: useBufferOccupancyABR(type),\n useL2AABR: useL2AABR(type),\n useLoLPABR: useLoLPABR(type),\n videoModel\n });\n const switchRequest = abrRulesCollection.shouldAbandonFragment(rulesContext);\n\n if (switchRequest.quality > SwitchRequest.NO_CHANGE) {\n const fragmentModel = streamProcessor.getFragmentModel();\n const request = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_LOADING,\n index: e.request.index\n })[0];\n if (request) {\n //TODO Check if we should abort or if better to finish download. check bytesLoaded/Total\n fragmentModel.abortRequests();\n setAbandonmentStateFor(type, MetricsConstants.ABANDON_LOAD);\n switchHistoryDict[type].reset();\n switchHistoryDict[type].push({\n oldValue: getQualityFor(type),\n newValue: switchRequest.quality,\n confidence: 1,\n reason: switchRequest.reason\n });\n setPlaybackQuality(type, streamController.getActiveStreamInfo(), switchRequest.quality, switchRequest.reason);\n\n clearTimeout(abandonmentTimeout);\n abandonmentTimeout = setTimeout(\n () => {\n setAbandonmentStateFor(type, MetricsConstants.ALLOW_LOAD);\n abandonmentTimeout = null;\n },\n settings.get().streaming.abandonLoadTimeout\n );\n }\n }\n }\n }\n\n instance = {\n isPlayingAtTopQuality: isPlayingAtTopQuality,\n updateTopQualityIndex: updateTopQualityIndex,\n getThroughputHistory: getThroughputHistory,\n getBitrateList: getBitrateList,\n getQualityForBitrate: getQualityForBitrate,\n getTopBitrateInfoFor: getTopBitrateInfoFor,\n getMaxAllowedIndexFor: getMaxAllowedIndexFor,\n getMinAllowedIndexFor: getMinAllowedIndexFor,\n getInitialBitrateFor: getInitialBitrateFor,\n getQualityFor: getQualityFor,\n getAbandonmentStateFor: getAbandonmentStateFor,\n setPlaybackQuality: setPlaybackQuality,\n checkPlaybackQuality: checkPlaybackQuality,\n getTopQualityIndexFor: getTopQualityIndexFor,\n setElementSize: setElementSize,\n setWindowResizeEventCalled: setWindowResizeEventCalled,\n createAbrRulesCollection: createAbrRulesCollection,\n registerStreamType: registerStreamType,\n unRegisterStreamType: unRegisterStreamType,\n setConfig: setConfig,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nAbrController.__dashjs_factory_name = 'AbrController';\nconst factory = FactoryMaker.getSingletonFactory(AbrController);\nfactory.QUALITY_DEFAULT = QUALITY_DEFAULT;\nFactoryMaker.updateSingletonFactory(AbrController.__dashjs_factory_name, factory);\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport ABRRulesCollection from '../rules/abr/ABRRulesCollection';\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport BitrateInfo from '../vo/BitrateInfo';\nimport FragmentModel from '../models/FragmentModel';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport RulesContext from '../rules/RulesContext';\nimport SwitchRequest from '../rules/SwitchRequest';\nimport SwitchRequestHistory from '../rules/SwitchRequestHistory';\nimport DroppedFramesHistory from '../rules/DroppedFramesHistory';\nimport ThroughputHistory from '../rules/ThroughputHistory';\nimport Debug from '../../core/Debug';\nimport { HTTPRequest } from '../vo/metrics/HTTPRequest';\nimport { checkInteger } from '../utils/SupervisorTools';\n\nconst DEFAULT_VIDEO_BITRATE = 1000;\nconst DEFAULT_AUDIO_BITRATE = 100;\nconst QUALITY_DEFAULT = 0;\n\nfunction AbrController() {\n\n const context = this.context;\n const debug = Debug(context).getInstance();\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n abrRulesCollection,\n streamController,\n topQualities,\n qualityDict,\n streamProcessorDict,\n abandonmentStateDict,\n abandonmentTimeout,\n windowResizeEventCalled,\n elementWidth,\n elementHeight,\n adapter,\n videoModel,\n mediaPlayerModel,\n domStorage,\n playbackIndex,\n switchHistoryDict,\n droppedFramesHistory,\n throughputHistory,\n isUsingBufferOccupancyABRDict,\n isUsingL2AABRDict,\n isUsingLoLPBRDict,\n dashMetrics,\n settings;\n\n function setup() {\n logger = debug.getLogger(instance);\n resetInitialSettings();\n }\n\n function registerStreamType(type, streamProcessor) {\n switchHistoryDict[type] = switchHistoryDict[type] || SwitchRequestHistory(context).create();\n streamProcessorDict[type] = streamProcessor;\n abandonmentStateDict[type] = abandonmentStateDict[type] || {};\n abandonmentStateDict[type].state = MetricsConstants.ALLOW_LOAD;\n isUsingBufferOccupancyABRDict[type] = false;\n isUsingL2AABRDict[type] = false;\n isUsingLoLPBRDict[type] = false;\n eventBus.on(Events.LOADING_PROGRESS, onFragmentLoadProgress, instance);\n if (type === Constants.VIDEO) {\n eventBus.on(Events.QUALITY_CHANGE_RENDERED, onQualityChangeRendered, instance);\n droppedFramesHistory = droppedFramesHistory || DroppedFramesHistory(context).create();\n setElementSize();\n }\n eventBus.on(Events.METRIC_ADDED, onMetricAdded, instance);\n eventBus.on(Events.PERIOD_SWITCH_COMPLETED, createAbrRulesCollection, instance);\n\n throughputHistory = throughputHistory || ThroughputHistory(context).create({\n settings: settings\n });\n }\n\n function unRegisterStreamType(type) {\n delete streamProcessorDict[type];\n }\n\n function createAbrRulesCollection() {\n abrRulesCollection = ABRRulesCollection(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n });\n\n abrRulesCollection.initialize();\n }\n\n function resetInitialSettings() {\n topQualities = {};\n qualityDict = {};\n abandonmentStateDict = {};\n streamProcessorDict = {};\n switchHistoryDict = {};\n isUsingBufferOccupancyABRDict = {};\n isUsingL2AABRDict = {};\n isUsingLoLPBRDict = {};\n if (windowResizeEventCalled === undefined) {\n windowResizeEventCalled = false;\n }\n playbackIndex = undefined;\n droppedFramesHistory = undefined;\n throughputHistory = undefined;\n clearTimeout(abandonmentTimeout);\n abandonmentTimeout = null;\n }\n\n function reset() {\n\n resetInitialSettings();\n\n eventBus.off(Events.LOADING_PROGRESS, onFragmentLoadProgress, instance);\n eventBus.off(Events.QUALITY_CHANGE_RENDERED, onQualityChangeRendered, instance);\n eventBus.off(Events.METRIC_ADDED, onMetricAdded, instance);\n eventBus.off(Events.PERIOD_SWITCH_COMPLETED, createAbrRulesCollection, instance);\n\n if (abrRulesCollection) {\n abrRulesCollection.reset();\n }\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.domStorage) {\n domStorage = config.domStorage;\n }\n if (config.mediaPlayerModel) {\n mediaPlayerModel = config.mediaPlayerModel;\n }\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n function checkConfig() {\n if (!domStorage || !domStorage.hasOwnProperty('getSavedBitrateSettings')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function onQualityChangeRendered(e) {\n if (e.mediaType === Constants.VIDEO) {\n if (playbackIndex !== undefined) {\n droppedFramesHistory.push(playbackIndex, videoModel.getPlaybackQuality());\n }\n playbackIndex = e.newQuality;\n }\n }\n\n function onMetricAdded(e) {\n if (e.metric === MetricsConstants.HTTP_REQUEST && e.value && e.value.type === HTTPRequest.MEDIA_SEGMENT_TYPE && (e.mediaType === Constants.AUDIO || e.mediaType === Constants.VIDEO)) {\n throughputHistory.push(e.mediaType, e.value, settings.get().streaming.abr.useDeadTimeLatency);\n }\n\n if (e.metric === MetricsConstants.BUFFER_LEVEL && (e.mediaType === Constants.AUDIO || e.mediaType === Constants.VIDEO)) {\n _updateAbrStrategy(e.mediaType, 0.001 * e.value.level);\n }\n }\n\n function getTopQualityIndexFor(type, id) {\n let idx;\n topQualities[id] = topQualities[id] || {};\n\n if (!topQualities[id].hasOwnProperty(type)) {\n topQualities[id][type] = 0;\n }\n\n idx = checkMaxBitrate(topQualities[id][type], type);\n idx = checkMaxRepresentationRatio(idx, type, topQualities[id][type]);\n idx = checkPortalSize(idx, type);\n return idx;\n }\n\n /**\n * Gets top BitrateInfo for the player\n * @param {string} type - 'video' or 'audio' are the type options.\n * @returns {BitrateInfo | null}\n */\n function getTopBitrateInfoFor(type) {\n if (type && streamProcessorDict && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n if (streamInfo && streamInfo.id) {\n const idx = getTopQualityIndexFor(type, streamInfo.id);\n const bitrates = getBitrateList(streamProcessorDict[type].getMediaInfo());\n return bitrates[idx] ? bitrates[idx] : null;\n }\n }\n return null;\n }\n\n /**\n * @param {string} type\n * @returns {number} A value of the initial bitrate, kbps\n * @memberof AbrController#\n */\n function getInitialBitrateFor(type) {\n checkConfig();\n if (type === Constants.TEXT || type === Constants.FRAGMENTED_TEXT) {\n return NaN;\n }\n const savedBitrate = domStorage.getSavedBitrateSettings(type);\n let configBitrate = settings.get().streaming.abr.initialBitrate[type];\n let configRatio = settings.get().streaming.abr.initialRepresentationRatio[type];\n\n if (configBitrate === -1) {\n if (configRatio > -1) {\n const representation = adapter.getAdaptationForType(0, type).Representation;\n if (Array.isArray(representation)) {\n const repIdx = Math.max(Math.round(representation.length * configRatio) - 1, 0);\n configBitrate = representation[repIdx].bandwidth;\n } else {\n configBitrate = 0;\n }\n } else if (!isNaN(savedBitrate)) {\n configBitrate = savedBitrate;\n } else {\n configBitrate = (type === Constants.VIDEO) ? DEFAULT_VIDEO_BITRATE : DEFAULT_AUDIO_BITRATE;\n }\n }\n\n return configBitrate;\n }\n\n function getMaxAllowedBitrateFor(type) {\n return settings.get().streaming.abr.maxBitrate[type];\n }\n\n function getMinAllowedBitrateFor(type) {\n return settings.get().streaming.abr.minBitrate[type];\n }\n\n function getMaxAllowedIndexFor(type) {\n const maxBitrate = getMaxAllowedBitrateFor(type);\n if (maxBitrate > -1) {\n return getQualityForBitrate(streamProcessorDict[type].getMediaInfo(), maxBitrate);\n } else {\n return undefined;\n }\n }\n\n function getMinAllowedIndexFor(type) {\n const minBitrate = getMinAllowedBitrateFor(type);\n\n if (minBitrate > -1) {\n const mediaInfo = streamProcessorDict[type].getMediaInfo();\n const bitrateList = getBitrateList(mediaInfo);\n // This returns the quality index <= for the given bitrate\n let minIdx = getQualityForBitrate(mediaInfo, minBitrate);\n if (bitrateList[minIdx] && minIdx < bitrateList.length - 1 && bitrateList[minIdx].bitrate < minBitrate * 1000) {\n minIdx++; // Go to the next bitrate\n }\n return minIdx;\n } else {\n return undefined;\n }\n }\n\n function checkPlaybackQuality(type) {\n if (type && streamProcessorDict && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n const streamId = streamInfo ? streamInfo.id : null;\n const oldQuality = getQualityFor(type);\n const rulesContext = RulesContext(context).create({\n abrController: instance,\n streamProcessor: streamProcessorDict[type],\n currentValue: oldQuality,\n switchHistory: switchHistoryDict[type],\n droppedFramesHistory: droppedFramesHistory,\n useBufferOccupancyABR: useBufferOccupancyABR(type),\n useL2AABR: useL2AABR(type),\n useLoLPABR: useLoLPABR(type),\n videoModel\n });\n\n if (droppedFramesHistory) {\n const playbackQuality = videoModel.getPlaybackQuality();\n if (playbackQuality) {\n droppedFramesHistory.push(playbackIndex, playbackQuality);\n }\n }\n if (!!settings.get().streaming.abr.autoSwitchBitrate[type]) {\n const minIdx = getMinAllowedIndexFor(type);\n const topQualityIdx = getTopQualityIndexFor(type, streamId);\n const switchRequest = abrRulesCollection.getMaxQuality(rulesContext);\n let newQuality = switchRequest.quality;\n if (minIdx !== undefined && ((newQuality > SwitchRequest.NO_CHANGE) ? newQuality : oldQuality) < minIdx) {\n newQuality = minIdx;\n }\n if (newQuality > topQualityIdx) {\n newQuality = topQualityIdx;\n }\n\n switchHistoryDict[type].push({ oldValue: oldQuality, newValue: newQuality });\n\n if (newQuality > SwitchRequest.NO_CHANGE && newQuality != oldQuality) {\n if (abandonmentStateDict[type].state === MetricsConstants.ALLOW_LOAD || newQuality > oldQuality) {\n changeQuality(type, oldQuality, newQuality, topQualityIdx, switchRequest.reason);\n }\n } else if (settings.get().debug.logLevel === Debug.LOG_LEVEL_DEBUG) {\n const bufferLevel = dashMetrics.getCurrentBufferLevel(type, true);\n logger.debug('[' + type + '] stay on ' + oldQuality + '/' + topQualityIdx + ' (buffer: ' + bufferLevel + ')');\n }\n }\n }\n }\n\n function setPlaybackQuality(type, streamInfo, newQuality, reason) {\n const id = streamInfo.id;\n const oldQuality = getQualityFor(type);\n\n checkInteger(newQuality);\n\n const topQualityIdx = getTopQualityIndexFor(type, id);\n if (newQuality !== oldQuality && newQuality >= 0 && newQuality <= topQualityIdx) {\n changeQuality(type, oldQuality, newQuality, topQualityIdx, reason);\n }\n }\n\n function changeQuality(type, oldQuality, newQuality, topQualityIdx, reason) {\n if (type && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n const id = streamInfo ? streamInfo.id : null;\n if (settings.get().debug.logLevel === Debug.LOG_LEVEL_DEBUG) {\n const bufferLevel = dashMetrics.getCurrentBufferLevel(type);\n logger.info('[' + type + '] switch from ' + oldQuality + ' to ' + newQuality + '/' + topQualityIdx + ' (buffer: ' + bufferLevel + ') ' + (reason ? JSON.stringify(reason) : '.'));\n }\n setQualityFor(type, id, newQuality);\n eventBus.trigger(Events.QUALITY_CHANGE_REQUESTED,\n {\n oldQuality: oldQuality,\n newQuality: newQuality,\n reason: reason\n },\n { streamId: streamInfo.id, mediaType: type }\n );\n const bitrate = throughputHistory.getAverageThroughput(type);\n if (!isNaN(bitrate)) {\n domStorage.setSavedBitrateSettings(type, bitrate);\n }\n }\n }\n\n function setAbandonmentStateFor(type, state) {\n abandonmentStateDict[type].state = state;\n }\n\n function getAbandonmentStateFor(type) {\n return abandonmentStateDict[type] ? abandonmentStateDict[type].state : null;\n }\n\n /**\n * @param {MediaInfo} mediaInfo\n * @param {number} bitrate A bitrate value, kbps\n * @param {number} latency Expected latency of connection, ms\n * @returns {number} A quality index <= for the given bitrate\n * @memberof AbrController#\n */\n function getQualityForBitrate(mediaInfo, bitrate, latency) {\n const voRepresentation = mediaInfo && mediaInfo.type ? streamProcessorDict[mediaInfo.type].getRepresentationInfo() : null;\n\n if (settings.get().streaming.abr.useDeadTimeLatency && latency && voRepresentation && voRepresentation.fragmentDuration) {\n latency = latency / 1000;\n const fragmentDuration = voRepresentation.fragmentDuration;\n if (latency > fragmentDuration) {\n return 0;\n } else {\n const deadTimeRatio = latency / fragmentDuration;\n bitrate = bitrate * (1 - deadTimeRatio);\n }\n }\n\n const bitrateList = getBitrateList(mediaInfo);\n\n for (let i = bitrateList.length - 1; i >= 0; i--) {\n const bitrateInfo = bitrateList[i];\n if (bitrate * 1000 >= bitrateInfo.bitrate) {\n return i;\n }\n }\n return QUALITY_DEFAULT;\n }\n\n /**\n * @param {MediaInfo} mediaInfo\n * @returns {Array|null} A list of {@link BitrateInfo} objects\n * @memberof AbrController#\n */\n function getBitrateList(mediaInfo) {\n const infoList = [];\n if (!mediaInfo || !mediaInfo.bitrateList) return infoList;\n\n const bitrateList = mediaInfo.bitrateList;\n const type = mediaInfo.type;\n\n let bitrateInfo;\n\n for (let i = 0, ln = bitrateList.length; i < ln; i++) {\n bitrateInfo = new BitrateInfo();\n bitrateInfo.mediaType = type;\n bitrateInfo.qualityIndex = i;\n bitrateInfo.bitrate = bitrateList[i].bandwidth;\n bitrateInfo.width = bitrateList[i].width;\n bitrateInfo.height = bitrateList[i].height;\n bitrateInfo.scanType = bitrateList[i].scanType;\n infoList.push(bitrateInfo);\n }\n\n return infoList;\n }\n\n function _updateAbrStrategy(mediaType, bufferLevel) {\n const strategy = settings.get().streaming.abr.ABRStrategy;\n\n if (strategy === Constants.ABR_STRATEGY_L2A) {\n isUsingBufferOccupancyABRDict[mediaType] = false;\n isUsingLoLPBRDict[mediaType] = false;\n isUsingL2AABRDict[mediaType] = true;\n return;\n }\n if (strategy === Constants.ABR_STRATEGY_LoLP) {\n isUsingBufferOccupancyABRDict[mediaType] = false;\n isUsingLoLPBRDict[mediaType] = true;\n isUsingL2AABRDict[mediaType] = false;\n return;\n } else if (strategy === Constants.ABR_STRATEGY_BOLA) {\n isUsingBufferOccupancyABRDict[mediaType] = true;\n isUsingLoLPBRDict[mediaType] = false;\n isUsingL2AABRDict[mediaType] = false;\n return;\n } else if (strategy === Constants.ABR_STRATEGY_THROUGHPUT) {\n isUsingBufferOccupancyABRDict[mediaType] = false;\n isUsingLoLPBRDict[mediaType] = false;\n isUsingL2AABRDict[mediaType] = false;\n return;\n }\n // else ABR_STRATEGY_DYNAMIC\n _updateDynamicAbrStrategy(mediaType, bufferLevel);\n }\n\n function _updateDynamicAbrStrategy(mediaType, bufferLevel) {\n const stableBufferTime = mediaPlayerModel.getStableBufferTime();\n const switchOnThreshold = stableBufferTime;\n const switchOffThreshold = 0.5 * stableBufferTime;\n\n const useBufferABR = isUsingBufferOccupancyABRDict[mediaType];\n const newUseBufferABR = bufferLevel > (useBufferABR ? switchOffThreshold : switchOnThreshold); // use hysteresis to avoid oscillating rules\n isUsingBufferOccupancyABRDict[mediaType] = newUseBufferABR;\n\n if (newUseBufferABR !== useBufferABR) {\n if (newUseBufferABR) {\n logger.info('[' + mediaType + '] switching from throughput to buffer occupancy ABR rule (buffer: ' + bufferLevel.toFixed(3) + ').');\n } else {\n logger.info('[' + mediaType + '] switching from buffer occupancy to throughput ABR rule (buffer: ' + bufferLevel.toFixed(3) + ').');\n }\n }\n }\n\n function useBufferOccupancyABR(mediaType) {\n return isUsingBufferOccupancyABRDict[mediaType];\n }\n\n function useL2AABR(mediaType) {\n return isUsingL2AABRDict[mediaType];\n }\n\n function useLoLPABR(mediaType) {\n return isUsingLoLPBRDict[mediaType];\n }\n\n function getThroughputHistory() {\n return throughputHistory;\n }\n\n function updateTopQualityIndex(mediaInfo) {\n const type = mediaInfo.type;\n const streamId = mediaInfo.streamInfo.id;\n const max = mediaInfo.representationCount - 1;\n\n setTopQualityIndex(type, streamId, max);\n\n return max;\n }\n\n function isPlayingAtTopQuality(streamInfo) {\n const streamId = streamInfo ? streamInfo.id : null;\n const audioQuality = getQualityFor(Constants.AUDIO);\n const videoQuality = getQualityFor(Constants.VIDEO);\n\n const isAtTop = (audioQuality === getTopQualityIndexFor(Constants.AUDIO, streamId)) &&\n (videoQuality === getTopQualityIndexFor(Constants.VIDEO, streamId));\n\n return isAtTop;\n }\n\n function getQualityFor(type) {\n if (type && streamProcessorDict[type]) {\n const streamInfo = streamProcessorDict[type].getStreamInfo();\n const id = streamInfo ? streamInfo.id : null;\n let quality;\n\n if (id) {\n qualityDict[id] = qualityDict[id] || {};\n\n if (!qualityDict[id].hasOwnProperty(type)) {\n qualityDict[id][type] = QUALITY_DEFAULT;\n }\n\n quality = qualityDict[id][type];\n return quality;\n }\n }\n return QUALITY_DEFAULT;\n }\n\n function setQualityFor(type, id, value) {\n qualityDict[id] = qualityDict[id] || {};\n qualityDict[id][type] = value;\n }\n\n function setTopQualityIndex(type, id, value) {\n topQualities[id] = topQualities[id] || {};\n topQualities[id][type] = value;\n }\n\n function checkMaxBitrate(idx, type) {\n let newIdx = idx;\n\n if (!streamProcessorDict[type]) {\n return newIdx;\n }\n\n const minIdx = getMinAllowedIndexFor(type);\n if (minIdx !== undefined) {\n newIdx = Math.max(idx, minIdx);\n }\n\n const maxIdx = getMaxAllowedIndexFor(type);\n if (maxIdx !== undefined) {\n newIdx = Math.min(newIdx, maxIdx);\n }\n\n return newIdx;\n }\n\n function checkMaxRepresentationRatio(idx, type, maxIdx) {\n const maxRepresentationRatio = settings.get().streaming.abr.maxRepresentationRatio[type];\n if (isNaN(maxRepresentationRatio) || maxRepresentationRatio >= 1 || maxRepresentationRatio < 0) {\n return idx;\n }\n return Math.min(idx, Math.round(maxIdx * maxRepresentationRatio));\n }\n\n function setWindowResizeEventCalled(value) {\n windowResizeEventCalled = value;\n }\n\n function setElementSize() {\n if (videoModel) {\n const hasPixelRatio = settings.get().streaming.abr.usePixelRatioInLimitBitrateByPortal && window.hasOwnProperty('devicePixelRatio');\n const pixelRatio = hasPixelRatio ? window.devicePixelRatio : 1;\n elementWidth = videoModel.getClientWidth() * pixelRatio;\n elementHeight = videoModel.getClientHeight() * pixelRatio;\n }\n }\n\n function checkPortalSize(idx, type) {\n if (type !== Constants.VIDEO || !settings.get().streaming.abr.limitBitrateByPortal || !streamProcessorDict[type]) {\n return idx;\n }\n\n if (!windowResizeEventCalled) {\n setElementSize();\n }\n\n const representation = adapter.getAdaptationForType(0, type).Representation;\n let newIdx = idx;\n\n if (elementWidth > 0 && elementHeight > 0) {\n while (\n newIdx > 0 &&\n representation[newIdx] &&\n elementWidth < representation[newIdx].width &&\n elementWidth - representation[newIdx - 1].width < representation[newIdx].width - elementWidth) {\n newIdx = newIdx - 1;\n }\n\n // Make sure that in case of multiple representation elements have same\n // resolution, every such element is included\n while (newIdx < representation.length - 1 && representation[newIdx].width === representation[newIdx + 1].width) {\n newIdx = newIdx + 1;\n }\n }\n\n return newIdx;\n }\n\n function onFragmentLoadProgress(e) {\n const type = e.request.mediaType;\n if (!!settings.get().streaming.abr.autoSwitchBitrate[type]) {\n const streamProcessor = streamProcessorDict[type];\n if (!streamProcessor) return; // There may be a fragment load in progress when we switch periods and recreated some controllers.\n\n const rulesContext = RulesContext(context).create({\n abrController: instance,\n streamProcessor: streamProcessor,\n currentRequest: e.request,\n useBufferOccupancyABR: useBufferOccupancyABR(type),\n useL2AABR: useL2AABR(type),\n useLoLPABR: useLoLPABR(type),\n videoModel\n });\n const switchRequest = abrRulesCollection.shouldAbandonFragment(rulesContext);\n\n if (switchRequest.quality > SwitchRequest.NO_CHANGE) {\n const fragmentModel = streamProcessor.getFragmentModel();\n const request = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_LOADING,\n index: e.request.index\n })[0];\n if (request) {\n //TODO Check if we should abort or if better to finish download. check bytesLoaded/Total\n fragmentModel.abortRequests();\n setAbandonmentStateFor(type, MetricsConstants.ABANDON_LOAD);\n switchHistoryDict[type].reset();\n switchHistoryDict[type].push({\n oldValue: getQualityFor(type),\n newValue: switchRequest.quality,\n confidence: 1,\n reason: switchRequest.reason\n });\n setPlaybackQuality(type, streamController.getActiveStreamInfo(), switchRequest.quality, switchRequest.reason);\n\n clearTimeout(abandonmentTimeout);\n abandonmentTimeout = setTimeout(\n () => {\n setAbandonmentStateFor(type, MetricsConstants.ALLOW_LOAD);\n abandonmentTimeout = null;\n },\n settings.get().streaming.abandonLoadTimeout\n );\n }\n }\n }\n }\n\n instance = {\n isPlayingAtTopQuality: isPlayingAtTopQuality,\n updateTopQualityIndex: updateTopQualityIndex,\n getThroughputHistory: getThroughputHistory,\n getBitrateList: getBitrateList,\n getQualityForBitrate: getQualityForBitrate,\n getTopBitrateInfoFor: getTopBitrateInfoFor,\n getMaxAllowedIndexFor: getMaxAllowedIndexFor,\n getMinAllowedIndexFor: getMinAllowedIndexFor,\n getInitialBitrateFor: getInitialBitrateFor,\n getQualityFor: getQualityFor,\n getAbandonmentStateFor: getAbandonmentStateFor,\n setPlaybackQuality: setPlaybackQuality,\n checkPlaybackQuality: checkPlaybackQuality,\n getTopQualityIndexFor: getTopQualityIndexFor,\n setElementSize: setElementSize,\n setWindowResizeEventCalled: setWindowResizeEventCalled,\n createAbrRulesCollection: createAbrRulesCollection,\n registerStreamType: registerStreamType,\n unRegisterStreamType: unRegisterStreamType,\n setConfig: setConfig,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nAbrController.__dashjs_factory_name = 'AbrController';\nconst factory = FactoryMaker.getSingletonFactory(AbrController);\nfactory.QUALITY_DEFAULT = QUALITY_DEFAULT;\nFactoryMaker.updateSingletonFactory(AbrController.__dashjs_factory_name, factory);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport BaseURLTreeModel from '../models/BaseURLTreeModel';\nimport BaseURLSelector from '../utils/BaseURLSelector';\nimport URLUtils from '../utils/URLUtils';\nimport BaseURL from '../../dash/vo/BaseURL';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\n\nfunction BaseURLController() {\n\n let instance,\n adapter;\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let baseURLTreeModel,\n baseURLSelector;\n\n function onBlackListChanged(e) {\n baseURLTreeModel.invalidateSelectedIndexes(e.entry);\n }\n\n function setup() {\n baseURLTreeModel = BaseURLTreeModel(context).create();\n baseURLSelector = BaseURLSelector(context).create();\n\n eventBus.on(Events.SERVICE_LOCATION_BLACKLIST_CHANGED, onBlackListChanged, instance);\n }\n\n function setConfig(config) {\n if (config.baseURLTreeModel) {\n baseURLTreeModel = config.baseURLTreeModel;\n }\n\n if (config.baseURLSelector) {\n baseURLSelector = config.baseURLSelector;\n }\n\n if (config.adapter) {\n adapter = config.adapter;\n }\n }\n\n function update(manifest) {\n baseURLTreeModel.update(manifest);\n baseURLSelector.chooseSelector(adapter.getIsDVB(manifest));\n }\n\n function resolve(path) {\n const baseUrls = baseURLTreeModel.getForPath(path);\n\n const baseUrl = baseUrls.reduce((p, c) => {\n const b = baseURLSelector.select(c);\n\n if (b) {\n if (!urlUtils.isRelative(b.url)) {\n p.url = b.url;\n p.serviceLocation = b.serviceLocation;\n } else {\n p.url = urlUtils.resolve(b.url, p.url);\n }\n p.availabilityTimeOffset = b.availabilityTimeOffset;\n p.availabilityTimeComplete = b.availabilityTimeComplete;\n } else {\n return new BaseURL();\n }\n\n return p;\n }, new BaseURL());\n\n if (!urlUtils.isRelative(baseUrl.url)) {\n return baseUrl;\n }\n }\n\n function reset() {\n baseURLTreeModel.reset();\n baseURLSelector.reset();\n }\n\n function initialize(data) {\n\n // report config to baseURLTreeModel and baseURLSelector\n baseURLTreeModel.setConfig({\n adapter: adapter\n });\n\n update(data);\n }\n\n instance = {\n reset: reset,\n initialize: initialize,\n resolve: resolve,\n setConfig: setConfig\n };\n\n setup();\n\n return instance;\n}\n\nBaseURLController.__dashjs_factory_name = 'BaseURLController';\nexport default FactoryMaker.getClassFactory(BaseURLController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport EventBus from '../../core/EventBus';\n\nfunction BlackListController(config) {\n\n config = config || {};\n let instance;\n let blacklist = [];\n\n const eventBus = EventBus(this.context).getInstance();\n const updateEventName = config.updateEventName;\n const addBlacklistEventName = config.addBlacklistEventName;\n\n function contains(query) {\n if (!blacklist.length || !query || !query.length) {\n return false;\n }\n\n return (blacklist.indexOf(query) !== -1);\n }\n\n function add(entry) {\n if (blacklist.indexOf(entry) !== -1) {\n return;\n }\n\n blacklist.push(entry);\n\n eventBus.trigger(updateEventName, { entry: entry });\n }\n\n function onAddBlackList(e) {\n add(e.entry);\n }\n\n function setup() {\n if (addBlacklistEventName) {\n eventBus.on(addBlacklistEventName, onAddBlackList, instance);\n }\n }\n\n function reset() {\n blacklist = [];\n }\n\n instance = {\n add: add,\n contains: contains,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nBlackListController.__dashjs_factory_name = 'BlackListController';\nexport default FactoryMaker.getClassFactory(BlackListController);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport FragmentModel from '../models/FragmentModel';\nimport SourceBufferSink from '../SourceBufferSink';\nimport PreBufferSink from '../PreBufferSink';\nimport AbrController from './AbrController';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport InitCache from '../utils/InitCache';\nimport DashJSError from '../vo/DashJSError';\nimport Errors from '../../core/errors/Errors';\nimport {HTTPRequest} from '../vo/metrics/HTTPRequest';\n\nconst BUFFERING_COMPLETED_THRESHOLD = 0.1;\nconst BUFFER_END_THRESHOLD = 0.5;\nconst BUFFER_RANGE_CALCULATION_THRESHOLD = 0.01;\nconst QUOTA_EXCEEDED_ERROR_CODE = 22;\n\nconst BUFFER_CONTROLLER_TYPE = 'BufferController';\n\nfunction BufferController(config) {\n\n config = config || {};\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const errHandler = config.errHandler;\n const fragmentModel = config.fragmentModel;\n const representationController = config.representationController;\n const mediaController = config.mediaController;\n const adapter = config.adapter;\n const textController = config.textController;\n const abrController = config.abrController;\n const playbackController = config.playbackController;\n const streamInfo = config.streamInfo;\n const type = config.type;\n const settings = config.settings;\n\n let instance,\n logger,\n requiredQuality,\n isBufferingCompleted,\n bufferLevel,\n criticalBufferLevel,\n mediaSource,\n maxAppendedIndex,\n lastIndex,\n buffer,\n dischargeBuffer,\n bufferState,\n appendedBytesInfo,\n wallclockTicked,\n isPruningInProgress,\n isQuotaExceeded,\n initCache,\n seekTarget,\n seekClearedBufferingCompleted,\n pendingPruningRanges,\n replacingBuffer,\n mediaChunk;\n\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n initCache = InitCache(context).getInstance();\n\n resetInitialSettings();\n }\n\n function getBufferControllerType() {\n return BUFFER_CONTROLLER_TYPE;\n }\n\n function initialize(Source) {\n setMediaSource(Source);\n\n requiredQuality = abrController.getQualityFor(type);\n\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, this);\n eventBus.on(Events.INIT_FRAGMENT_LOADED, onInitFragmentLoaded, this);\n eventBus.on(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, this);\n eventBus.on(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, this);\n eventBus.on(Events.STREAM_COMPLETED, onStreamCompleted, this);\n eventBus.on(Events.PLAYBACK_PLAYING, onPlaybackPlaying, this);\n eventBus.on(Events.PLAYBACK_PROGRESS, onPlaybackProgression, this);\n eventBus.on(Events.PLAYBACK_TIME_UPDATED, onPlaybackProgression, this);\n eventBus.on(Events.PLAYBACK_RATE_CHANGED, onPlaybackRateChanged, this);\n eventBus.on(Events.PLAYBACK_SEEKING, onPlaybackSeeking, this);\n eventBus.on(Events.PLAYBACK_SEEKED, onPlaybackSeeked, this);\n eventBus.on(Events.PLAYBACK_STALLED, onPlaybackStalled, this);\n eventBus.on(Events.WALLCLOCK_TIME_UPDATED, onWallclockTimeUpdated, this);\n eventBus.on(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, this, { priority: EventBus.EVENT_PRIORITY_HIGH });\n eventBus.on(Events.SOURCEBUFFER_REMOVE_COMPLETED, onRemoved, this);\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function getType() {\n return type;\n }\n\n\n function getRepresentationInfo(quality) {\n return adapter.convertDataToRepresentationInfo(representationController.getRepresentationForQuality(quality));\n }\n\n function createBuffer(mediaInfoArr, oldBuffers) {\n if (!initCache || !mediaInfoArr) return null;\n const mediaInfo = mediaInfoArr[0];\n if (mediaSource) {\n try {\n if (oldBuffers && oldBuffers[type]) {\n buffer = SourceBufferSink(context).create(mediaSource, mediaInfo, onAppended.bind(this), oldBuffers[type]);\n } else {\n buffer = SourceBufferSink(context).create(mediaSource, mediaInfo, onAppended.bind(this), null);\n }\n if (settings.get().streaming.useAppendWindow) {\n buffer.updateAppendWindow(streamInfo);\n }\n if (typeof buffer.getBuffer().initialize === 'function') {\n buffer.getBuffer().initialize(type, streamInfo, mediaInfoArr, fragmentModel);\n }\n } catch (e) {\n logger.fatal('Caught error on create SourceBuffer: ' + e);\n errHandler.error(new DashJSError(Errors.MEDIASOURCE_TYPE_UNSUPPORTED_CODE, Errors.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE + type));\n }\n } else {\n buffer = PreBufferSink(context).create(onAppended.bind(this));\n }\n updateBufferTimestampOffset(getRepresentationInfo(requiredQuality));\n return buffer;\n }\n\n function dischargePreBuffer() {\n if (buffer && dischargeBuffer && typeof dischargeBuffer.discharge === 'function') {\n const ranges = dischargeBuffer.getAllBufferRanges();\n\n if (ranges.length > 0) {\n let rangeStr = 'Beginning ' + type + 'PreBuffer discharge, adding buffer for:';\n for (let i = 0; i < ranges.length; i++) {\n rangeStr += ' start: ' + ranges.start(i) + ', end: ' + ranges.end(i) + ';';\n }\n logger.debug(rangeStr);\n } else {\n logger.debug('PreBuffer discharge requested, but there were no media segments in the PreBuffer.');\n }\n\n let chunks = dischargeBuffer.discharge();\n let lastInit = null;\n for (let j = 0; j < chunks.length; j++) {\n const chunk = chunks[j];\n const initChunk = initCache.extract(chunk.streamId, chunk.representationId);\n if (initChunk) {\n if (lastInit !== initChunk) {\n buffer.append(initChunk);\n lastInit = initChunk;\n }\n buffer.append(chunk); //TODO Think about supressing buffer events the second time round after a discharge?\n }\n }\n\n dischargeBuffer.reset();\n dischargeBuffer = null;\n }\n }\n\n function onInitFragmentLoaded(e) {\n logger.info('Init fragment finished loading saving to', type + '\\'s init cache');\n initCache.save(e.chunk);\n logger.debug('Append Init fragment', type, ' with representationId:', e.chunk.representationId, ' and quality:', e.chunk.quality, ', data size:', e.chunk.bytes.byteLength);\n appendToBuffer(e.chunk);\n }\n\n function appendInitSegment(representationId) {\n // Get init segment from cache\n const chunk = initCache.extract(streamInfo.id, representationId);\n\n if (!chunk) {\n // Init segment not in cache, shall be requested\n return false;\n }\n\n // Append init segment into buffer\n logger.info('Append Init fragment', type, ' with representationId:', chunk.representationId, ' and quality:', chunk.quality, ', data size:', chunk.bytes.byteLength);\n appendToBuffer(chunk);\n return true;\n }\n\n function onMediaFragmentLoaded(e) {\n const chunk = e.chunk;\n\n if (replacingBuffer) {\n mediaChunk = chunk;\n const ranges = buffer && buffer.getAllBufferRanges();\n if (ranges && ranges.length > 0 && playbackController.getTimeToStreamEnd() > settings.get().streaming.stallThreshold) {\n logger.debug('Clearing buffer because track changed - ' + (ranges.end(ranges.length - 1) + BUFFER_END_THRESHOLD));\n clearBuffers([{\n start: 0,\n end: ranges.end(ranges.length - 1) + BUFFER_END_THRESHOLD,\n force: true // Force buffer removal even when buffering is completed and MediaSource is ended\n }]);\n }\n } else {\n appendToBuffer(chunk);\n }\n }\n\n function appendToBuffer(chunk) {\n buffer.append(chunk);\n\n if (chunk.mediaInfo.type === Constants.VIDEO) {\n triggerEvent(Events.VIDEO_CHUNK_RECEIVED, {chunk: chunk});\n }\n }\n\n function showBufferRanges(ranges) {\n if (ranges && ranges.length > 0) {\n for (let i = 0, len = ranges.length; i < len; i++) {\n logger.debug('Buffered range: ' + ranges.start(i) + ' - ' + ranges.end(i) + ', currentTime = ', playbackController.getTime());\n }\n }\n }\n\n function onAppended(e) {\n if (e.error) {\n if (e.error.code === QUOTA_EXCEEDED_ERROR_CODE) {\n isQuotaExceeded = true;\n criticalBufferLevel = getTotalBufferedTime() * 0.8;\n logger.warn('Quota exceeded, Critical Buffer: ' + criticalBufferLevel);\n\n if (criticalBufferLevel > 0) {\n // recalculate buffer lengths according to criticalBufferLevel\n const bufferToKeep = Math.max(0.2 * criticalBufferLevel, 1);\n const bufferAhead = criticalBufferLevel - bufferToKeep;\n const bufferTimeAtTopQuality = Math.min(settings.get().streaming.bufferTimeAtTopQuality, bufferAhead * 0.9);\n const bufferTimeAtTopQualityLongForm = Math.min(settings.get().streaming.bufferTimeAtTopQualityLongForm, bufferAhead * 0.9);\n const s = {\n streaming: {\n bufferToKeep: parseFloat(bufferToKeep.toFixed(5)),\n bufferTimeAtTopQuality: parseFloat(bufferTimeAtTopQuality.toFixed(5)),\n bufferTimeAtTopQualityLongForm: parseFloat(bufferTimeAtTopQualityLongForm.toFixed(5))\n }\n };\n settings.update(s);\n }\n }\n if (e.error.code === QUOTA_EXCEEDED_ERROR_CODE || !hasEnoughSpaceToAppend()) {\n logger.warn('Clearing playback buffer to overcome quota exceed situation');\n // Notify Schedulecontroller to stop scheduling until buffer has been pruned\n triggerEvent(Events.QUOTA_EXCEEDED, {criticalBufferLevel: criticalBufferLevel});\n clearBuffers(getClearRanges());\n }\n return;\n }\n isQuotaExceeded = false;\n\n appendedBytesInfo = e.chunk;\n if (appendedBytesInfo && !isNaN(appendedBytesInfo.index)) {\n maxAppendedIndex = Math.max(appendedBytesInfo.index, maxAppendedIndex);\n checkIfBufferingCompleted();\n }\n\n const ranges = buffer.getAllBufferRanges();\n if (appendedBytesInfo.segmentType === HTTPRequest.MEDIA_SEGMENT_TYPE) {\n showBufferRanges(ranges);\n onPlaybackProgression();\n adjustSeekTarget();\n } else if (replacingBuffer) {\n // When replacing buffer due to switch track, and once new initialization segment has been appended\n // (and previous buffered data removed) then seek stream to current time\n const currentTime = playbackController.getTime();\n logger.debug('AppendToBuffer seek target should be ' + currentTime);\n triggerEvent(Events.SEEK_TARGET, {time: currentTime});\n }\n\n if (appendedBytesInfo) {\n triggerEvent(appendedBytesInfo.endFragment ? Events.BYTES_APPENDED_END_FRAGMENT : Events.BYTES_APPENDED, {\n quality: appendedBytesInfo.quality,\n startTime: appendedBytesInfo.start,\n index: appendedBytesInfo.index,\n bufferedRanges: ranges,\n mediaType: type\n });\n }\n }\n\n function adjustSeekTarget() {\n // Check buffered data only for audio and video\n if (type !== Constants.AUDIO && type !== Constants.VIDEO) return;\n if (isNaN(seekTarget)) return;\n\n // Check if current buffered range already contains seek target (and current video element time)\n const currentTime = playbackController.getTime();\n let range = getRangeAt(seekTarget, 0);\n if (currentTime === seekTarget && range) return;\n\n // Get buffered range corresponding to the seek target\n const segmentDuration = representationController.getCurrentRepresentation().segmentDuration;\n range = getRangeAt(seekTarget, segmentDuration);\n if (!range) return;\n\n if (Math.abs(currentTime - seekTarget) > segmentDuration) {\n // If current video model time is decorrelated from seek target (and appended buffer) then seek video element\n // (in case of live streams on some browsers/devices for which we can't set video element time at unavalaible range)\n\n // Check if appended segment is not anterior from seek target (segments timeline/template tolerance)\n if (seekTarget <= range.end) {\n // Seek video element to seek target or range start if appended buffer starts after seek target (segments timeline/template tolerance)\n playbackController.seek(Math.max(seekTarget, range.start), false, true);\n seekTarget = NaN;\n }\n } else if (currentTime < range.start) {\n // If appended buffer starts after seek target (segments timeline/template tolerance) then seek to range start\n playbackController.seek(range.start, false, true);\n seekTarget = NaN;\n }\n }\n\n function onQualityChanged(e) {\n if (requiredQuality === e.newQuality) return;\n\n updateBufferTimestampOffset(this.getRepresentationInfo(e.newQuality));\n requiredQuality = e.newQuality;\n }\n\n //**********************************************************************\n // START Buffer Level, State & Sufficiency Handling.\n //**********************************************************************\n function onPlaybackSeeking(e) {\n seekTarget = e.seekTime;\n if (isBufferingCompleted) {\n seekClearedBufferingCompleted = true;\n isBufferingCompleted = false;\n //a seek command has occured, reset lastIndex value, it will be set next time that onStreamCompleted will be called.\n lastIndex = Number.POSITIVE_INFINITY;\n }\n if (type !== Constants.FRAGMENTED_TEXT) {\n // remove buffer after seeking operations\n pruneAllSafely();\n } else {\n onPlaybackProgression();\n }\n }\n\n function onPlaybackSeeked() {\n seekTarget = NaN;\n }\n\n // Prune full buffer but what is around current time position\n function pruneAllSafely() {\n buffer.waitForUpdateEnd(() => {\n const ranges = getAllRangesWithSafetyFactor();\n if (!ranges || ranges.length === 0) {\n onPlaybackProgression();\n }\n clearBuffers(ranges);\n });\n }\n\n // Get all buffer ranges but a range around current time position\n function getAllRangesWithSafetyFactor() {\n const clearRanges = [];\n const ranges = buffer.getAllBufferRanges();\n if (!ranges || ranges.length === 0) {\n return clearRanges;\n }\n\n const currentTime = playbackController.getTime();\n const endOfBuffer = ranges.end(ranges.length - 1) + BUFFER_END_THRESHOLD;\n\n const currentTimeRequest = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTime,\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n\n // There is no request in current time position yet. Let's remove everything\n if (!currentTimeRequest) {\n logger.debug('getAllRangesWithSafetyFactor - No request found in current time position, removing full buffer 0 -', endOfBuffer);\n clearRanges.push({\n start: 0,\n end: endOfBuffer\n });\n } else {\n // Build buffer behind range. To avoid pruning time around current time position,\n // we include fragment right behind the one in current time position\n const behindRange = {\n start: 0,\n end: currentTimeRequest.startTime - settings.get().streaming.stallThreshold\n };\n const prevReq = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTimeRequest.startTime - (currentTimeRequest.duration / 2),\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n if (prevReq && prevReq.startTime != currentTimeRequest.startTime) {\n behindRange.end = prevReq.startTime;\n }\n if (behindRange.start < behindRange.end && behindRange.end > ranges.start(0)) {\n clearRanges.push(behindRange);\n }\n\n // Build buffer ahead range. To avoid pruning time around current time position,\n // we include fragment right after the one in current time position\n const aheadRange = {\n start: currentTimeRequest.startTime + currentTimeRequest.duration + settings.get().streaming.stallThreshold,\n end: endOfBuffer\n };\n const nextReq = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTimeRequest.startTime + currentTimeRequest.duration + settings.get().streaming.stallThreshold,\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n if (nextReq && nextReq.startTime !== currentTimeRequest.startTime) {\n aheadRange.start = nextReq.startTime + nextReq.duration + settings.get().streaming.stallThreshold;\n }\n if (aheadRange.start < aheadRange.end && aheadRange.start < endOfBuffer) {\n clearRanges.push(aheadRange);\n }\n }\n\n return clearRanges;\n }\n\n function getWorkingTime() {\n return isNaN(seekTarget) ? playbackController.getTime() : seekTarget;\n }\n\n function onPlaybackProgression() {\n if (!replacingBuffer || (type === Constants.FRAGMENTED_TEXT && textController.isTextEnabled())) {\n updateBufferLevel();\n }\n }\n\n function onPlaybackStalled() {\n checkIfSufficientBuffer();\n }\n\n function onPlaybackPlaying() {\n seekTarget = NaN;\n checkIfSufficientBuffer();\n }\n\n function getRangeAt(time, tolerance) {\n const ranges = buffer.getAllBufferRanges();\n let start = 0;\n let end = 0;\n let firstStart = null;\n let lastEnd = null;\n let gap = 0;\n let len,\n i;\n\n const toler = !isNaN(tolerance) ? tolerance : 0.15;\n\n if (ranges !== null && ranges !== undefined) {\n for (i = 0, len = ranges.length; i < len; i++) {\n start = ranges.start(i);\n end = ranges.end(i);\n if (firstStart === null) {\n gap = Math.abs(start - time);\n if (time >= start && time < end) {\n // start the range\n firstStart = start;\n lastEnd = end;\n } else if (gap <= toler) {\n // start the range even though the buffer does not contain time 0\n firstStart = start;\n lastEnd = end;\n }\n } else {\n gap = start - lastEnd;\n if (gap <= toler) {\n // the discontinuity is smaller than the tolerance, combine the ranges\n lastEnd = end;\n } else {\n break;\n }\n }\n }\n\n if (firstStart !== null) {\n return {\n start: firstStart,\n end: lastEnd\n };\n }\n }\n\n return null;\n }\n\n function getBufferLength(time, tolerance) {\n let range,\n length;\n\n // Consider gap/discontinuity limit as tolerance\n if (settings.get().streaming.jumpGaps) {\n tolerance = settings.get().streaming.smallGapLimit;\n }\n\n range = getRangeAt(time, tolerance);\n\n if (range === null) {\n length = 0;\n } else {\n length = range.end - time;\n }\n\n return length;\n }\n\n function updateBufferLevel() {\n if (playbackController) {\n bufferLevel = getBufferLength(getWorkingTime() || 0);\n triggerEvent(Events.BUFFER_LEVEL_UPDATED, {bufferLevel: bufferLevel});\n checkIfSufficientBuffer();\n }\n }\n\n function checkIfBufferingCompleted() {\n const isLastIdxAppended = maxAppendedIndex >= lastIndex - 1; // Handles 0 and non 0 based request index\n if (isLastIdxAppended && !isBufferingCompleted && buffer.discharge === undefined) {\n isBufferingCompleted = true;\n logger.debug('checkIfBufferingCompleted trigger BUFFERING_COMPLETED for ' + type);\n triggerEvent(Events.BUFFERING_COMPLETED);\n }\n }\n\n function checkIfSufficientBuffer() {\n // No need to check buffer if type is not audio or video (for example if several errors occur during text parsing, so that the buffer cannot be filled, no error must occur on video playback)\n if (type !== Constants.AUDIO && type !== Constants.VIDEO) return;\n\n if (seekClearedBufferingCompleted && !isBufferingCompleted && bufferLevel > 0 && playbackController && playbackController.getTimeToStreamEnd() - bufferLevel < BUFFERING_COMPLETED_THRESHOLD) {\n seekClearedBufferingCompleted = false;\n isBufferingCompleted = true;\n logger.debug('checkIfSufficientBuffer trigger BUFFERING_COMPLETED for type ' + type);\n triggerEvent(Events.BUFFERING_COMPLETED);\n }\n\n // When the player is working in low latency mode, the buffer is often below settings.get().streaming.stallThreshold.\n // So, when in low latency mode, change dash.js behavior so it notifies a stall just when\n // buffer reach 0 seconds\n if (((!settings.get().streaming.lowLatencyEnabled && bufferLevel < settings.get().streaming.stallThreshold) || bufferLevel === 0) && !isBufferingCompleted) {\n notifyBufferStateChanged(MetricsConstants.BUFFER_EMPTY);\n } else {\n if (isBufferingCompleted || bufferLevel >= streamInfo.manifestInfo.minBufferTime) {\n notifyBufferStateChanged(MetricsConstants.BUFFER_LOADED);\n }\n }\n }\n\n function notifyBufferStateChanged(state) {\n if (bufferState === state ||\n (state === MetricsConstants.BUFFER_EMPTY && playbackController.getTime() === 0) || // Don't trigger BUFFER_EMPTY if it's initial loading\n (type === Constants.FRAGMENTED_TEXT && !textController.isTextEnabled())) {\n return;\n }\n\n bufferState = state;\n\n triggerEvent(Events.BUFFER_LEVEL_STATE_CHANGED, {state: state});\n triggerEvent(state === MetricsConstants.BUFFER_LOADED ? Events.BUFFER_LOADED : Events.BUFFER_EMPTY);\n logger.debug(state === MetricsConstants.BUFFER_LOADED ? 'Got enough buffer to start' : 'Waiting for more buffer before starting playback');\n }\n\n /* prune buffer on our own in background to avoid browsers pruning buffer silently */\n function pruneBuffer() {\n if (!buffer || type === Constants.FRAGMENTED_TEXT) {\n return;\n }\n\n if (!isBufferingCompleted) {\n clearBuffers(getClearRanges());\n }\n }\n\n function getClearRanges() {\n const clearRanges = [];\n const ranges = buffer.getAllBufferRanges();\n if (!ranges || ranges.length === 0) {\n return clearRanges;\n }\n\n const currentTime = playbackController.getTime();\n let startRangeToKeep = Math.max(0, currentTime - settings.get().streaming.bufferToKeep);\n\n const currentTimeRequest = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTime,\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n\n // Ensure we keep full range of current fragment\n if (currentTimeRequest) {\n startRangeToKeep = Math.min(currentTimeRequest.startTime, startRangeToKeep);\n } else if (currentTime === 0 && playbackController.getIsDynamic()) {\n // Don't prune before the live stream starts, it messes with low latency\n return [];\n }\n\n if (ranges.start(0) <= startRangeToKeep) {\n const behindRange = {\n start: 0,\n end: startRangeToKeep\n };\n for (let i = 0; i < ranges.length && ranges.end(i) <= startRangeToKeep; i++) {\n behindRange.end = ranges.end(i);\n }\n if (behindRange.start < behindRange.end) {\n clearRanges.push(behindRange);\n }\n }\n\n return clearRanges;\n }\n\n function clearBuffers(ranges) {\n if (!ranges || !buffer || ranges.length === 0) return;\n\n pendingPruningRanges.push.apply(pendingPruningRanges, ranges);\n if (isPruningInProgress) {\n return;\n }\n\n clearNextRange();\n }\n\n function clearNextRange() {\n // If there's nothing to prune reset state\n if (pendingPruningRanges.length === 0 || !buffer) {\n logger.debug('Nothing to prune, halt pruning');\n pendingPruningRanges = [];\n isPruningInProgress = false;\n return;\n }\n\n const sourceBuffer = buffer.getBuffer();\n // If there's nothing buffered any pruning is invalid, so reset our state\n if (!sourceBuffer || !sourceBuffer.buffered || sourceBuffer.buffered.length === 0) {\n logger.debug('SourceBuffer is empty (or does not exist), halt pruning');\n pendingPruningRanges = [];\n isPruningInProgress = false;\n return;\n }\n\n const range = pendingPruningRanges.shift();\n logger.debug('Removing buffer from:', range.start, 'to', range.end);\n isPruningInProgress = true;\n\n // If removing buffer ahead current playback position, update maxAppendedIndex\n const currentTime = playbackController.getTime();\n if (currentTime < range.end) {\n isBufferingCompleted = false;\n maxAppendedIndex = 0;\n }\n\n buffer.remove(range.start, range.end, range.force);\n }\n\n function onRemoved(e) {\n if (buffer !== e.buffer) return;\n\n logger.debug('onRemoved buffer from:', e.from, 'to', e.to);\n\n const ranges = buffer.getAllBufferRanges();\n showBufferRanges(ranges);\n\n if (pendingPruningRanges.length === 0) {\n isPruningInProgress = false;\n }\n\n if (e.unintended) {\n logger.warn('Detected unintended removal from:', e.from, 'to', e.to, 'setting index handler time to', e.from);\n triggerEvent(Events.SEEK_TARGET, {time: e.from, mediaType: type, streamId: streamInfo.id});\n }\n\n if (isPruningInProgress) {\n clearNextRange();\n } else {\n if (!replacingBuffer) {\n updateBufferLevel();\n } else {\n replacingBuffer = false;\n if (mediaChunk) {\n appendToBuffer(mediaChunk);\n }\n }\n triggerEvent(Events.BUFFER_CLEARED, {\n from: e.from,\n to: e.to,\n unintended: e.unintended,\n hasEnoughSpaceToAppend: hasEnoughSpaceToAppend(),\n quotaExceeded: isQuotaExceeded\n });\n }\n }\n\n function updateBufferTimestampOffset(representationInfo) {\n if (!representationInfo || representationInfo.MSETimeOffset === undefined) return;\n // Each track can have its own @presentationTimeOffset, so we should set the offset\n // if it has changed after switching the quality or updating an mpd\n if (buffer && buffer.updateTimestampOffset) {\n buffer.updateTimestampOffset(representationInfo.MSETimeOffset);\n }\n }\n\n function updateAppendWindow() {\n if (buffer && !isBufferingCompleted) {\n buffer.updateAppendWindow(streamInfo);\n }\n }\n\n function onDataUpdateCompleted(e) {\n if (e.error || isBufferingCompleted) return;\n updateBufferTimestampOffset(e.currentRepresentation);\n }\n\n function onStreamCompleted(e) {\n lastIndex = e.request.index;\n checkIfBufferingCompleted();\n }\n\n function onCurrentTrackChanged(e) {\n if (e.newMediaInfo.streamInfo.id !== streamInfo.id || e.newMediaInfo.type !== type) return;\n\n const ranges = buffer && buffer.getAllBufferRanges();\n if (!ranges) return;\n\n logger.info('Track change asked');\n if (mediaController.getSwitchMode(type) === Constants.TRACK_SWITCH_MODE_ALWAYS_REPLACE) {\n if (ranges && ranges.length > 0 && playbackController.getTimeToStreamEnd() > settings.get().streaming.stallThreshold) {\n isBufferingCompleted = false;\n lastIndex = Number.POSITIVE_INFINITY;\n }\n }\n }\n\n function onWallclockTimeUpdated() {\n wallclockTicked++;\n const secondsElapsed = (wallclockTicked * (settings.get().streaming.wallclockTimeUpdateInterval / 1000));\n if ((secondsElapsed >= settings.get().streaming.bufferPruningInterval)) {\n wallclockTicked = 0;\n pruneBuffer();\n }\n }\n\n function onPlaybackRateChanged() {\n checkIfSufficientBuffer();\n }\n\n function getBuffer() {\n return buffer;\n }\n\n function setBuffer(newBuffer) {\n buffer = newBuffer;\n }\n\n function getBufferLevel() {\n return bufferLevel;\n }\n\n function setMediaSource(value, mediaInfo) {\n mediaSource = value;\n if (buffer && mediaInfo) { //if we have a prebuffer, we should prepare to discharge it, and make a new sourceBuffer ready\n if (typeof buffer.discharge === 'function') {\n dischargeBuffer = buffer;\n createBuffer(mediaInfo);\n }\n }\n }\n\n function getMediaSource() {\n return mediaSource;\n }\n\n function replaceBuffer() {\n replacingBuffer = true;\n }\n\n function getIsBufferingCompleted() {\n return isBufferingCompleted;\n }\n\n function getIsPruningInProgress() {\n return isPruningInProgress;\n }\n\n function getTotalBufferedTime() {\n const ranges = buffer.getAllBufferRanges();\n let totalBufferedTime = 0;\n let ln,\n i;\n\n if (!ranges) return totalBufferedTime;\n\n for (i = 0, ln = ranges.length; i < ln; i++) {\n totalBufferedTime += ranges.end(i) - ranges.start(i);\n }\n\n return totalBufferedTime;\n }\n\n function hasEnoughSpaceToAppend() {\n const totalBufferedTime = getTotalBufferedTime();\n return (totalBufferedTime < criticalBufferLevel);\n }\n\n function triggerEvent(eventType, data) {\n let payload = data || {};\n eventBus.trigger(eventType, payload, { streamId: streamInfo.id, mediaType: type });\n }\n\n function resetInitialSettings(errored, keepBuffers) {\n criticalBufferLevel = Number.POSITIVE_INFINITY;\n bufferState = undefined;\n requiredQuality = AbrController.QUALITY_DEFAULT;\n lastIndex = Number.POSITIVE_INFINITY;\n maxAppendedIndex = 0;\n appendedBytesInfo = null;\n isBufferingCompleted = false;\n isPruningInProgress = false;\n isQuotaExceeded = false;\n seekClearedBufferingCompleted = false;\n bufferLevel = 0;\n wallclockTicked = 0;\n pendingPruningRanges = [];\n seekTarget = NaN;\n\n if (buffer) {\n if (!errored) {\n buffer.abort();\n }\n buffer.reset(keepBuffers);\n buffer = null;\n }\n\n replacingBuffer = false;\n }\n\n function reset(errored, keepBuffers) {\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, this);\n eventBus.off(Events.INIT_FRAGMENT_LOADED, onInitFragmentLoaded, this);\n eventBus.off(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, this);\n eventBus.off(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, this);\n eventBus.off(Events.STREAM_COMPLETED, onStreamCompleted, this);\n eventBus.off(Events.PLAYBACK_PLAYING, onPlaybackPlaying, this);\n eventBus.off(Events.PLAYBACK_PROGRESS, onPlaybackProgression, this);\n eventBus.off(Events.PLAYBACK_TIME_UPDATED, onPlaybackProgression, this);\n eventBus.off(Events.PLAYBACK_RATE_CHANGED, onPlaybackRateChanged, this);\n eventBus.off(Events.PLAYBACK_SEEKING, onPlaybackSeeking, this);\n eventBus.off(Events.PLAYBACK_SEEKED, onPlaybackSeeked, this);\n eventBus.off(Events.PLAYBACK_STALLED, onPlaybackStalled, this);\n eventBus.off(Events.WALLCLOCK_TIME_UPDATED, onWallclockTimeUpdated, this);\n eventBus.off(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, this);\n eventBus.off(Events.SOURCEBUFFER_REMOVE_COMPLETED, onRemoved, this);\n\n resetInitialSettings(errored, keepBuffers);\n }\n\n instance = {\n initialize,\n getStreamId,\n getType,\n getBufferControllerType,\n getRepresentationInfo,\n createBuffer,\n dischargePreBuffer,\n getBuffer,\n setBuffer,\n getBufferLevel,\n getRangeAt,\n setMediaSource,\n getMediaSource,\n appendInitSegment,\n replaceBuffer,\n getIsBufferingCompleted,\n getIsPruningInProgress,\n reset,\n updateAppendWindow\n };\n\n setup();\n return instance;\n}\n\nBufferController.__dashjs_factory_name = BUFFER_CONTROLLER_TYPE;\nexport default FactoryMaker.getClassFactory(BufferController);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport EventBus from '../../core/EventBus';\nimport MediaPlayerEvents from '../../streaming/MediaPlayerEvents';\nimport XHRLoader from '../net/XHRLoader';\n\nfunction EventController() {\n\n const MPD_RELOAD_SCHEME = 'urn:mpeg:dash:event:2012';\n const MPD_RELOAD_VALUE = 1;\n\n const MPD_CALLBACK_SCHEME = 'urn:mpeg:dash:event:callback:2015';\n const MPD_CALLBACK_VALUE = 1;\n\n const REFRESH_DELAY = 100;\n const REMAINING_EVENTS_THRESHOLD = 300;\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n inlineEvents, // Holds all Inline Events not triggered yet\n inbandEvents, // Holds all Inband Events not triggered yet\n activeEvents, // Holds all Events currently running\n eventInterval, // variable holding the setInterval\n lastEventTimerCall,\n manifestUpdater,\n playbackController,\n eventHandlingInProgress,\n isStarted;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n _resetInitialSettings();\n }\n\n function checkConfig() {\n if (!manifestUpdater || !playbackController) {\n throw new Error('setConfig function has to be called previously');\n }\n }\n\n function _resetInitialSettings() {\n isStarted = false;\n inlineEvents = {};\n inbandEvents = {};\n activeEvents = {};\n eventInterval = null;\n eventHandlingInProgress = false;\n lastEventTimerCall = Date.now() / 1000;\n }\n\n function _stop() {\n try {\n if (eventInterval !== null && isStarted) {\n clearInterval(eventInterval);\n eventInterval = null;\n isStarted = false;\n _onStopEventController();\n }\n } catch (e) {\n throw e;\n }\n }\n\n function start() {\n try {\n checkConfig();\n logger.debug('Start Event Controller');\n if (!isStarted && !isNaN(REFRESH_DELAY)) {\n isStarted = true;\n eventInterval = setInterval(_onEventTimer, REFRESH_DELAY);\n }\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Add events to the eventList. Events that are not in the mpd anymore but not triggered yet will still be deleted\n * @param {Array.} values\n */\n function addInlineEvents(values) {\n try {\n checkConfig();\n\n if (values) {\n for (let i = 0; i < values.length; i++) {\n let event = values[i];\n logger.debug('Add inline event with id ' + event.id);\n\n // If we see the event for the first time we trigger it in onReceive mode\n if (!inlineEvents[event.id]) {\n _startEvent(event.id, event, values, MediaPlayerEvents.EVENT_MODE_ON_RECEIVE);\n }\n\n inlineEvents[event.id] = event;\n }\n }\n logger.debug(`Added ${values.length} inline events`);\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * i.e. processing of any one event message box with the same id is sufficient\n * @param {Array.} values\n */\n function addInbandEvents(values) {\n try {\n checkConfig();\n\n for (let i = 0; i < values.length; i++) {\n let event = values[i];\n if (!(event.id in inbandEvents)) {\n if (event.eventStream.schemeIdUri === MPD_RELOAD_SCHEME && inbandEvents[event.id] === undefined) {\n _handleManifestReloadEvent(event);\n }\n inbandEvents[event.id] = event;\n logger.debug('Add inband event with id ' + event.id);\n _startEvent(event.id, event, values, MediaPlayerEvents.EVENT_MODE_ON_RECEIVE);\n } else {\n logger.debug('Repeated event with id ' + event.id);\n }\n }\n _onEventTimer();\n } catch (e) {\n throw e;\n }\n }\n\n function _handleManifestReloadEvent(event) {\n try {\n if (event.eventStream.value == MPD_RELOAD_VALUE) {\n const validUntil = event.calculatedPresentationTime;\n let newDuration;\n if (event.calculatedPresentationTime == 0xFFFFFFFF) {//0xFF... means remaining duration unknown\n newDuration = NaN;\n } else {\n newDuration = event.calculatedPresentationTime + event.duration;\n }\n //logger.info('Manifest validity changed: Valid until: ' + validUntil + '; remaining duration: ' + newDuration);\n eventBus.trigger(MediaPlayerEvents.MANIFEST_VALIDITY_CHANGED, {\n id: event.id,\n validUntil: validUntil,\n newDuration: newDuration,\n newManifestValidAfter: NaN //event.message_data - this is an arraybuffer with a timestring in it, but not used yet\n }, {\n mode: MediaPlayerEvents.EVENT_MODE_ON_START\n });\n }\n } catch (e) {\n }\n }\n\n /**\n * Remove expired events from the list\n */\n function _removeEvents() {\n try {\n if (activeEvents) {\n let currentVideoTime = playbackController.getTime();\n let eventIds = Object.keys(activeEvents);\n\n for (let i = 0; i < eventIds.length; i++) {\n let eventId = eventIds[i];\n let event = activeEvents[eventId];\n if (event !== null && event.duration + event.calculatedPresentationTime < currentVideoTime) {\n logger.debug('Remove Event ' + eventId + ' at time ' + currentVideoTime);\n event = null;\n delete activeEvents[eventId];\n }\n }\n }\n } catch (e) {\n }\n }\n\n /**\n * Iterate through the eventList and trigger/remove the events\n */\n function _onEventTimer() {\n try {\n if (!eventHandlingInProgress) {\n eventHandlingInProgress = true;\n const currentVideoTime = playbackController.getTime();\n let presentationTimeThreshold = (currentVideoTime - lastEventTimerCall);\n\n // For dynamic streams lastEventTimeCall will be large in the first iteration. Avoid firing all events at once.\n presentationTimeThreshold = lastEventTimerCall > 0 ? Math.max(0, presentationTimeThreshold) : 0;\n\n _triggerEvents(inbandEvents, presentationTimeThreshold, currentVideoTime);\n _triggerEvents(inlineEvents, presentationTimeThreshold, currentVideoTime);\n _removeEvents();\n\n lastEventTimerCall = currentVideoTime;\n eventHandlingInProgress = false;\n }\n } catch (e) {\n eventHandlingInProgress = false;\n }\n }\n\n function _onStopEventController() {\n try {\n // EventController might be stopped before the period is over. Before we stop the event controller we check for events that needs to be triggered at the period boundary.\n _triggerRemainingEvents(inbandEvents);\n _triggerRemainingEvents(inlineEvents);\n } catch (e) {\n\n }\n }\n\n function _triggerEvents(events, presentationTimeThreshold, currentVideoTime) {\n try {\n if (events) {\n let eventIds = Object.keys(events);\n\n for (let i = 0; i < eventIds.length; i++) {\n let eventId = eventIds[i];\n let event = events[eventId];\n\n if (event !== undefined) {\n const duration = !isNaN(event.duration) ? event.duration : 0;\n // The event is either about to start or has already been started and we are within its duration\n if ((event.calculatedPresentationTime <= currentVideoTime && event.calculatedPresentationTime + presentationTimeThreshold + duration >= currentVideoTime)) {\n _startEvent(eventId, event, events, MediaPlayerEvents.EVENT_MODE_ON_START);\n } else if (_eventHasExpired(currentVideoTime, duration + presentationTimeThreshold, event.calculatedPresentationTime) || _eventIsInvalid(event)) {\n logger.debug(`Deleting event ${eventId} as it is expired or invalid`);\n delete events[eventId];\n }\n }\n }\n }\n } catch (e) {\n }\n }\n\n function _eventHasExpired(currentVideoTime, threshold, calculatedPresentationTimeInSeconds) {\n try {\n return currentVideoTime - threshold > calculatedPresentationTimeInSeconds;\n } catch (e) {\n return false;\n }\n }\n\n function _eventIsInvalid(event) {\n try {\n const periodEndTime = event.eventStream.period.start + event.eventStream.period.duration;\n\n return event.calculatedPresentationTime > periodEndTime;\n } catch (e) {\n return false;\n }\n }\n\n function _triggerRemainingEvents(events) {\n try {\n const eventIds = Object.keys(events);\n const currentTime = playbackController.getTime();\n\n if (!eventIds || eventIds.length === 0) {\n return;\n }\n\n const periodDuration = events[eventIds[0]].eventStream && events[eventIds[0]].eventStream.period && !isNaN(events[eventIds[0]].eventStream.period.duration) ? events[eventIds[0]].eventStream.period.duration : NaN;\n const periodStart = events[eventIds[0]].eventStream && events[eventIds[0]].eventStream.period && !isNaN(events[eventIds[0]].eventStream.period.start) ? events[eventIds[0]].eventStream.period.start : NaN;\n\n if (isNaN(periodDuration) || isNaN(periodStart)) {\n return;\n }\n\n eventIds.forEach((eventId) => {\n const event = events[eventId];\n const calculatedPresentationTimeInSeconds = event.calculatedPresentationTime;\n\n if (Math.abs(calculatedPresentationTimeInSeconds - currentTime) < REMAINING_EVENTS_THRESHOLD) {\n _startEvent(eventId, event, events, MediaPlayerEvents.EVENT_MODE_ON_START);\n }\n });\n } catch (e) {\n\n }\n }\n\n function _startEvent(eventId, event, events, mode) {\n try {\n const currentVideoTime = playbackController.getTime();\n\n if (mode === MediaPlayerEvents.EVENT_MODE_ON_RECEIVE) {\n logger.debug(`Received event ${eventId}`);\n eventBus.trigger(event.eventStream.schemeIdUri, { event: event }, { mode });\n return;\n }\n\n if (event.duration > 0) {\n activeEvents[eventId] = event;\n }\n\n if (event.eventStream.schemeIdUri === MPD_RELOAD_SCHEME && event.eventStream.value === MPD_RELOAD_VALUE) {\n if (event.duration !== 0 || event.presentationTimeDelta !== 0) { //If both are set to zero, it indicates the media is over at this point. Don't reload the manifest.\n logger.debug(`Starting manifest refresh event ${eventId} at ${currentVideoTime}`);\n _refreshManifest();\n }\n } else if (event.eventStream.schemeIdUri === MPD_CALLBACK_SCHEME && event.eventStream.value === MPD_CALLBACK_VALUE) {\n logger.debug(`Starting callback event ${eventId} at ${currentVideoTime}`);\n _sendCallbackRequest(event.messageData);\n } else {\n logger.debug(`Starting event ${eventId} at ${currentVideoTime}`);\n eventBus.trigger(event.eventStream.schemeIdUri, { event: event }, { mode });\n }\n\n delete events[eventId];\n\n } catch (e) {\n }\n }\n\n function _refreshManifest() {\n try {\n checkConfig();\n manifestUpdater.refreshManifest();\n } catch (e) {\n }\n }\n\n function _sendCallbackRequest(url) {\n try {\n let loader = XHRLoader(context).create({});\n loader.load({\n method: 'get',\n url: url,\n request: {\n responseType: 'arraybuffer'\n }\n });\n } catch (e) {\n throw e;\n }\n }\n\n function setConfig(config) {\n try {\n if (!config) {\n return;\n }\n\n if (config.manifestUpdater) {\n manifestUpdater = config.manifestUpdater;\n }\n\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n } catch (e) {\n throw e;\n }\n }\n\n function reset() {\n _stop();\n _resetInitialSettings();\n }\n\n instance = {\n addInlineEvents,\n addInbandEvents,\n start,\n setConfig,\n reset\n };\n\n setup();\n\n return instance;\n}\n\nEventController.__dashjs_factory_name = 'EventController';\nexport default FactoryMaker.getSingletonFactory(EventController);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport FragmentModel from '../models/FragmentModel';\nimport SourceBufferSink from '../SourceBufferSink';\nimport PreBufferSink from '../PreBufferSink';\nimport AbrController from './AbrController';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport InitCache from '../utils/InitCache';\nimport DashJSError from '../vo/DashJSError';\nimport Errors from '../../core/errors/Errors';\nimport {HTTPRequest} from '../vo/metrics/HTTPRequest';\n\nconst BUFFERING_COMPLETED_THRESHOLD = 0.1;\nconst BUFFER_END_THRESHOLD = 0.5;\nconst BUFFER_RANGE_CALCULATION_THRESHOLD = 0.01;\nconst QUOTA_EXCEEDED_ERROR_CODE = 22;\n\nconst BUFFER_CONTROLLER_TYPE = 'BufferController';\n\nfunction BufferController(config) {\n\n config = config || {};\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const errHandler = config.errHandler;\n const fragmentModel = config.fragmentModel;\n const representationController = config.representationController;\n const mediaController = config.mediaController;\n const adapter = config.adapter;\n const textController = config.textController;\n const abrController = config.abrController;\n const playbackController = config.playbackController;\n const streamInfo = config.streamInfo;\n const type = config.type;\n const settings = config.settings;\n\n let instance,\n logger,\n requiredQuality,\n isBufferingCompleted,\n bufferLevel,\n criticalBufferLevel,\n mediaSource,\n maxAppendedIndex,\n lastIndex,\n buffer,\n dischargeBuffer,\n dischargeFragments,\n bufferState,\n appendedBytesInfo,\n wallclockTicked,\n isPruningInProgress,\n isQuotaExceeded,\n initCache,\n seekTarget,\n seekClearedBufferingCompleted,\n pendingPruningRanges,\n replacingBuffer,\n mediaChunk;\n\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n initCache = InitCache(context).getInstance();\n\n resetInitialSettings();\n }\n\n function getBufferControllerType() {\n return BUFFER_CONTROLLER_TYPE;\n }\n\n function initialize(Source) {\n setMediaSource(Source);\n\n requiredQuality = abrController.getQualityFor(type);\n\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, this);\n eventBus.on(Events.INIT_FRAGMENT_LOADED, onInitFragmentLoaded, this);\n eventBus.on(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, this);\n eventBus.on(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, this);\n eventBus.on(Events.STREAM_COMPLETED, onStreamCompleted, this);\n eventBus.on(Events.PLAYBACK_PLAYING, onPlaybackPlaying, this);\n eventBus.on(Events.PLAYBACK_PROGRESS, onPlaybackProgression, this);\n eventBus.on(Events.PLAYBACK_TIME_UPDATED, onPlaybackProgression, this);\n eventBus.on(Events.PLAYBACK_RATE_CHANGED, onPlaybackRateChanged, this);\n eventBus.on(Events.PLAYBACK_SEEKING, onPlaybackSeeking, this);\n eventBus.on(Events.PLAYBACK_SEEKED, onPlaybackSeeked, this);\n eventBus.on(Events.PLAYBACK_STALLED, onPlaybackStalled, this);\n eventBus.on(Events.WALLCLOCK_TIME_UPDATED, onWallclockTimeUpdated, this);\n eventBus.on(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, this, { priority: EventBus.EVENT_PRIORITY_HIGH });\n eventBus.on(Events.SOURCEBUFFER_REMOVE_COMPLETED, onRemoved, this);\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function getType() {\n return type;\n }\n\n\n function getRepresentationInfo(quality) {\n return adapter.convertDataToRepresentationInfo(representationController.getRepresentationForQuality(quality));\n }\n\n function createBuffer(mediaInfoArr, oldBuffers) {\n if (!initCache || !mediaInfoArr) return null;\n const mediaInfo = mediaInfoArr[0];\n if (mediaSource) {\n try {\n if (oldBuffers && oldBuffers[type]) {\n buffer = SourceBufferSink(context).create(mediaSource, mediaInfo, onAppended.bind(this), oldBuffers[type]);\n } else {\n buffer = SourceBufferSink(context).create(mediaSource, mediaInfo, onAppended.bind(this), null);\n }\n if (settings.get().streaming.useAppendWindow) {\n buffer.updateAppendWindow(streamInfo);\n }\n if (typeof buffer.getBuffer().initialize === 'function') {\n buffer.getBuffer().initialize(type, streamInfo, mediaInfoArr, fragmentModel);\n }\n } catch (e) {\n logger.fatal('Caught error on create SourceBuffer: ' + e);\n errHandler.error(new DashJSError(Errors.MEDIASOURCE_TYPE_UNSUPPORTED_CODE, Errors.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE + type));\n }\n } else {\n buffer = PreBufferSink(context).create(onAppended.bind(this));\n }\n updateBufferTimestampOffset(getRepresentationInfo(requiredQuality));\n return buffer;\n }\n\n function dischargePreBuffer() {\n if (buffer && dischargeBuffer && typeof dischargeBuffer.discharge === 'function') {\n const ranges = dischargeBuffer.getAllBufferRanges();\n\n if (ranges.length > 0) {\n let rangeStr = 'Beginning ' + type + 'PreBuffer discharge, adding buffer for:';\n for (let i = 0; i < ranges.length; i++) {\n rangeStr += ' start: ' + ranges.start(i) + ', end: ' + ranges.end(i) + ';';\n }\n logger.debug(rangeStr);\n } else {\n logger.debug('PreBuffer discharge requested, but there were no media segments in the PreBuffer.');\n }\n\n //A list of fragments to supress bytesAppended events for. This makes transferring from a prebuffer to a sourcebuffer silent.\n dischargeFragments = [];\n let chunks = dischargeBuffer.discharge();\n let lastInit = null;\n for (let j = 0; j < chunks.length; j++) {\n const chunk = chunks[j];\n if (chunk.segmentType !== 'InitializationSegment') {\n const initChunk = initCache.extract(chunk.streamId, chunk.representationId);\n if (initChunk) {\n if (lastInit !== initChunk) {\n dischargeFragments.push(initChunk);\n buffer.append(initChunk);\n lastInit = initChunk;\n }\n }\n }\n dischargeFragments.push(chunk);\n buffer.append(chunk);\n }\n\n dischargeBuffer.reset();\n dischargeBuffer = null;\n }\n }\n\n function onInitFragmentLoaded(e) {\n logger.info('Init fragment finished loading saving to', type + '\\'s init cache');\n initCache.save(e.chunk);\n logger.debug('Append Init fragment', type, ' with representationId:', e.chunk.representationId, ' and quality:', e.chunk.quality, ', data size:', e.chunk.bytes.byteLength);\n appendToBuffer(e.chunk);\n }\n\n function appendInitSegment(representationId) {\n // Get init segment from cache\n const chunk = initCache.extract(streamInfo.id, representationId);\n\n if (!chunk) {\n // Init segment not in cache, shall be requested\n return false;\n }\n\n // Append init segment into buffer\n logger.info('Append Init fragment', type, ' with representationId:', chunk.representationId, ' and quality:', chunk.quality, ', data size:', chunk.bytes.byteLength);\n appendToBuffer(chunk);\n return true;\n }\n\n function onMediaFragmentLoaded(e) {\n const chunk = e.chunk;\n\n if (replacingBuffer) {\n mediaChunk = chunk;\n const ranges = buffer && buffer.getAllBufferRanges();\n if (ranges && ranges.length > 0 && playbackController.getTimeToStreamEnd() > settings.get().streaming.stallThreshold) {\n logger.debug('Clearing buffer because track changed - ' + (ranges.end(ranges.length - 1) + BUFFER_END_THRESHOLD));\n clearBuffers([{\n start: 0,\n end: ranges.end(ranges.length - 1) + BUFFER_END_THRESHOLD,\n force: true // Force buffer removal even when buffering is completed and MediaSource is ended\n }]);\n }\n } else {\n appendToBuffer(chunk);\n }\n }\n\n function appendToBuffer(chunk) {\n buffer.append(chunk);\n\n if (chunk.mediaInfo.type === Constants.VIDEO) {\n triggerEvent(Events.VIDEO_CHUNK_RECEIVED, {chunk: chunk});\n }\n }\n\n function showBufferRanges(ranges) {\n if (ranges && ranges.length > 0) {\n for (let i = 0, len = ranges.length; i < len; i++) {\n logger.debug('Buffered range: ' + ranges.start(i) + ' - ' + ranges.end(i) + ', currentTime = ', playbackController.getTime());\n }\n }\n }\n\n function onAppended(e) {\n if (e.error) {\n if (e.error.code === QUOTA_EXCEEDED_ERROR_CODE) {\n isQuotaExceeded = true;\n criticalBufferLevel = getTotalBufferedTime() * 0.8;\n logger.warn('Quota exceeded, Critical Buffer: ' + criticalBufferLevel);\n\n if (criticalBufferLevel > 0) {\n // recalculate buffer lengths according to criticalBufferLevel\n const bufferToKeep = Math.max(0.2 * criticalBufferLevel, 1);\n const bufferAhead = criticalBufferLevel - bufferToKeep;\n const bufferTimeAtTopQuality = Math.min(settings.get().streaming.bufferTimeAtTopQuality, bufferAhead * 0.9);\n const bufferTimeAtTopQualityLongForm = Math.min(settings.get().streaming.bufferTimeAtTopQualityLongForm, bufferAhead * 0.9);\n const s = {\n streaming: {\n bufferToKeep: parseFloat(bufferToKeep.toFixed(5)),\n bufferTimeAtTopQuality: parseFloat(bufferTimeAtTopQuality.toFixed(5)),\n bufferTimeAtTopQualityLongForm: parseFloat(bufferTimeAtTopQualityLongForm.toFixed(5))\n }\n };\n settings.update(s);\n }\n }\n if (e.error.code === QUOTA_EXCEEDED_ERROR_CODE || !hasEnoughSpaceToAppend()) {\n logger.warn('Clearing playback buffer to overcome quota exceed situation');\n // Notify Schedulecontroller to stop scheduling until buffer has been pruned\n triggerEvent(Events.QUOTA_EXCEEDED, {criticalBufferLevel: criticalBufferLevel});\n clearBuffers(getClearRanges());\n }\n return;\n }\n isQuotaExceeded = false;\n\n appendedBytesInfo = e.chunk;\n if (appendedBytesInfo && !isNaN(appendedBytesInfo.index)) {\n maxAppendedIndex = Math.max(appendedBytesInfo.index, maxAppendedIndex);\n checkIfBufferingCompleted();\n }\n\n const ranges = buffer.getAllBufferRanges();\n if (appendedBytesInfo.segmentType === HTTPRequest.MEDIA_SEGMENT_TYPE) {\n showBufferRanges(ranges);\n onPlaybackProgression();\n adjustSeekTarget();\n } else if (replacingBuffer) {\n // When replacing buffer due to switch track, and once new initialization segment has been appended\n // (and previous buffered data removed) then seek stream to current time\n const currentTime = playbackController.getTime();\n logger.debug('AppendToBuffer seek target should be ' + currentTime);\n triggerEvent(Events.SEEK_TARGET, {time: currentTime});\n }\n\n let suppressAppendedEvent = false;\n if (dischargeFragments) {\n if (dischargeFragments.indexOf(appendedBytesInfo) > 0) {\n suppressAppendedEvent = true;\n }\n dischargeFragments = null;\n }\n if (appendedBytesInfo && !suppressAppendedEvent) {\n triggerEvent(appendedBytesInfo.endFragment ? Events.BYTES_APPENDED_END_FRAGMENT : Events.BYTES_APPENDED, {\n quality: appendedBytesInfo.quality,\n startTime: appendedBytesInfo.start,\n index: appendedBytesInfo.index,\n bufferedRanges: ranges,\n mediaType: type\n });\n }\n }\n\n function adjustSeekTarget() {\n // Check buffered data only for audio and video\n if (type !== Constants.AUDIO && type !== Constants.VIDEO) return;\n if (isNaN(seekTarget)) return;\n\n // Check if current buffered range already contains seek target (and current video element time)\n const currentTime = playbackController.getTime();\n let range = getRangeAt(seekTarget, 0);\n if (currentTime === seekTarget && range) return;\n\n // Get buffered range corresponding to the seek target\n const segmentDuration = representationController.getCurrentRepresentation().segmentDuration;\n range = getRangeAt(seekTarget, segmentDuration);\n if (!range) return;\n\n if (Math.abs(currentTime - seekTarget) > segmentDuration) {\n // If current video model time is decorrelated from seek target (and appended buffer) then seek video element\n // (in case of live streams on some browsers/devices for which we can't set video element time at unavalaible range)\n\n // Check if appended segment is not anterior from seek target (segments timeline/template tolerance)\n if (seekTarget <= range.end) {\n // Seek video element to seek target or range start if appended buffer starts after seek target (segments timeline/template tolerance)\n playbackController.seek(Math.max(seekTarget, range.start), false, true);\n seekTarget = NaN;\n }\n } else if (currentTime < range.start) {\n // If appended buffer starts after seek target (segments timeline/template tolerance) then seek to range start\n playbackController.seek(range.start, false, true);\n seekTarget = NaN;\n }\n }\n\n function onQualityChanged(e) {\n if (requiredQuality === e.newQuality) return;\n\n updateBufferTimestampOffset(this.getRepresentationInfo(e.newQuality));\n requiredQuality = e.newQuality;\n }\n\n //**********************************************************************\n // START Buffer Level, State & Sufficiency Handling.\n //**********************************************************************\n function onPlaybackSeeking(e) {\n seekTarget = e.seekTime;\n if (isBufferingCompleted) {\n seekClearedBufferingCompleted = true;\n isBufferingCompleted = false;\n //a seek command has occured, reset lastIndex value, it will be set next time that onStreamCompleted will be called.\n lastIndex = Number.POSITIVE_INFINITY;\n }\n if (type !== Constants.FRAGMENTED_TEXT) {\n // remove buffer after seeking operations\n pruneAllSafely();\n } else {\n onPlaybackProgression();\n }\n }\n\n function onPlaybackSeeked() {\n seekTarget = NaN;\n }\n\n // Prune full buffer but what is around current time position\n function pruneAllSafely() {\n buffer.waitForUpdateEnd(() => {\n const ranges = getAllRangesWithSafetyFactor();\n if (!ranges || ranges.length === 0) {\n onPlaybackProgression();\n }\n clearBuffers(ranges);\n });\n }\n\n // Get all buffer ranges but a range around current time position\n function getAllRangesWithSafetyFactor() {\n const clearRanges = [];\n const ranges = buffer.getAllBufferRanges();\n if (!ranges || ranges.length === 0) {\n return clearRanges;\n }\n\n const currentTime = playbackController.getTime();\n const endOfBuffer = ranges.end(ranges.length - 1) + BUFFER_END_THRESHOLD;\n\n const currentTimeRequest = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTime,\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n\n // There is no request in current time position yet. Let's remove everything\n if (!currentTimeRequest) {\n logger.debug('getAllRangesWithSafetyFactor - No request found in current time position, removing full buffer 0 -', endOfBuffer);\n clearRanges.push({\n start: 0,\n end: endOfBuffer\n });\n } else {\n // Build buffer behind range. To avoid pruning time around current time position,\n // we include fragment right behind the one in current time position\n const behindRange = {\n start: 0,\n end: currentTimeRequest.startTime - settings.get().streaming.stallThreshold\n };\n const prevReq = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTimeRequest.startTime - (currentTimeRequest.duration / 2),\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n if (prevReq && prevReq.startTime != currentTimeRequest.startTime) {\n behindRange.end = prevReq.startTime;\n }\n if (behindRange.start < behindRange.end && behindRange.end > ranges.start(0)) {\n clearRanges.push(behindRange);\n }\n\n // Build buffer ahead range. To avoid pruning time around current time position,\n // we include fragment right after the one in current time position\n const aheadRange = {\n start: currentTimeRequest.startTime + currentTimeRequest.duration + settings.get().streaming.stallThreshold,\n end: endOfBuffer\n };\n const nextReq = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTimeRequest.startTime + currentTimeRequest.duration + settings.get().streaming.stallThreshold,\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n if (nextReq && nextReq.startTime !== currentTimeRequest.startTime) {\n aheadRange.start = nextReq.startTime + nextReq.duration + settings.get().streaming.stallThreshold;\n }\n if (aheadRange.start < aheadRange.end && aheadRange.start < endOfBuffer) {\n clearRanges.push(aheadRange);\n }\n }\n\n return clearRanges;\n }\n\n function getWorkingTime() {\n return isNaN(seekTarget) ? playbackController.getTime() : seekTarget;\n }\n\n function onPlaybackProgression() {\n if (!replacingBuffer || (type === Constants.FRAGMENTED_TEXT && textController.isTextEnabled())) {\n updateBufferLevel();\n }\n }\n\n function onPlaybackStalled() {\n checkIfSufficientBuffer();\n }\n\n function onPlaybackPlaying() {\n seekTarget = NaN;\n checkIfSufficientBuffer();\n }\n\n function getRangeAt(time, tolerance) {\n const ranges = buffer.getAllBufferRanges();\n let start = 0;\n let end = 0;\n let firstStart = null;\n let lastEnd = null;\n let gap = 0;\n let len,\n i;\n\n const toler = !isNaN(tolerance) ? tolerance : 0.15;\n\n if (ranges !== null && ranges !== undefined) {\n for (i = 0, len = ranges.length; i < len; i++) {\n start = ranges.start(i);\n end = ranges.end(i);\n if (firstStart === null) {\n gap = Math.abs(start - time);\n if (time >= start && time < end) {\n // start the range\n firstStart = start;\n lastEnd = end;\n } else if (gap <= toler) {\n // start the range even though the buffer does not contain time 0\n firstStart = start;\n lastEnd = end;\n }\n } else {\n gap = start - lastEnd;\n if (gap <= toler) {\n // the discontinuity is smaller than the tolerance, combine the ranges\n lastEnd = end;\n } else {\n break;\n }\n }\n }\n\n if (firstStart !== null) {\n return {\n start: firstStart,\n end: lastEnd\n };\n }\n }\n\n return null;\n }\n\n function getBufferLength(time, tolerance) {\n let range,\n length;\n\n // Consider gap/discontinuity limit as tolerance\n if (settings.get().streaming.jumpGaps) {\n tolerance = settings.get().streaming.smallGapLimit;\n }\n\n range = getRangeAt(time, tolerance);\n\n if (range === null) {\n length = 0;\n } else {\n length = range.end - time;\n }\n\n return length;\n }\n\n function updateBufferLevel() {\n if (playbackController) {\n bufferLevel = getBufferLength(getWorkingTime() || 0);\n triggerEvent(Events.BUFFER_LEVEL_UPDATED, {bufferLevel: bufferLevel});\n checkIfSufficientBuffer();\n }\n }\n\n function checkIfBufferingCompleted() {\n const isLastIdxAppended = maxAppendedIndex >= lastIndex - 1; // Handles 0 and non 0 based request index\n if (isLastIdxAppended && !isBufferingCompleted && buffer.discharge === undefined) {\n isBufferingCompleted = true;\n logger.debug('checkIfBufferingCompleted trigger BUFFERING_COMPLETED for ' + type);\n triggerEvent(Events.BUFFERING_COMPLETED);\n }\n }\n\n function checkIfSufficientBuffer() {\n // No need to check buffer if type is not audio or video (for example if several errors occur during text parsing, so that the buffer cannot be filled, no error must occur on video playback)\n if (type !== Constants.AUDIO && type !== Constants.VIDEO) return;\n\n if (seekClearedBufferingCompleted && !isBufferingCompleted && bufferLevel > 0 && playbackController && playbackController.getTimeToStreamEnd() - bufferLevel < BUFFERING_COMPLETED_THRESHOLD) {\n seekClearedBufferingCompleted = false;\n isBufferingCompleted = true;\n logger.debug('checkIfSufficientBuffer trigger BUFFERING_COMPLETED for type ' + type);\n triggerEvent(Events.BUFFERING_COMPLETED);\n }\n\n // When the player is working in low latency mode, the buffer is often below settings.get().streaming.stallThreshold.\n // So, when in low latency mode, change dash.js behavior so it notifies a stall just when\n // buffer reach 0 seconds\n if (((!settings.get().streaming.lowLatencyEnabled && bufferLevel < settings.get().streaming.stallThreshold) || bufferLevel === 0) && !isBufferingCompleted) {\n notifyBufferStateChanged(MetricsConstants.BUFFER_EMPTY);\n } else {\n if (isBufferingCompleted || bufferLevel >= streamInfo.manifestInfo.minBufferTime) {\n notifyBufferStateChanged(MetricsConstants.BUFFER_LOADED);\n }\n }\n }\n\n function notifyBufferStateChanged(state) {\n if (bufferState === state ||\n (state === MetricsConstants.BUFFER_EMPTY && playbackController.getTime() === 0) || // Don't trigger BUFFER_EMPTY if it's initial loading\n (type === Constants.FRAGMENTED_TEXT && !textController.isTextEnabled())) {\n return;\n }\n\n bufferState = state;\n\n triggerEvent(Events.BUFFER_LEVEL_STATE_CHANGED, {state: state});\n triggerEvent(state === MetricsConstants.BUFFER_LOADED ? Events.BUFFER_LOADED : Events.BUFFER_EMPTY);\n logger.debug(state === MetricsConstants.BUFFER_LOADED ? 'Got enough buffer to start' : 'Waiting for more buffer before starting playback');\n }\n\n /* prune buffer on our own in background to avoid browsers pruning buffer silently */\n function pruneBuffer() {\n if (!buffer || type === Constants.FRAGMENTED_TEXT) {\n return;\n }\n\n if (!isBufferingCompleted) {\n clearBuffers(getClearRanges());\n }\n }\n\n function getClearRanges() {\n const clearRanges = [];\n const ranges = buffer.getAllBufferRanges();\n if (!ranges || ranges.length === 0) {\n return clearRanges;\n }\n\n const currentTime = playbackController.getTime();\n let startRangeToKeep = Math.max(0, currentTime - settings.get().streaming.bufferToKeep);\n\n const currentTimeRequest = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: currentTime,\n threshold: BUFFER_RANGE_CALCULATION_THRESHOLD\n })[0];\n\n // Ensure we keep full range of current fragment\n if (currentTimeRequest) {\n startRangeToKeep = Math.min(currentTimeRequest.startTime, startRangeToKeep);\n } else if (currentTime === 0 && playbackController.getIsDynamic()) {\n // Don't prune before the live stream starts, it messes with low latency\n return [];\n }\n\n if (ranges.start(0) <= startRangeToKeep) {\n const behindRange = {\n start: 0,\n end: startRangeToKeep\n };\n for (let i = 0; i < ranges.length && ranges.end(i) <= startRangeToKeep; i++) {\n behindRange.end = ranges.end(i);\n }\n if (behindRange.start < behindRange.end) {\n clearRanges.push(behindRange);\n }\n }\n\n return clearRanges;\n }\n\n function clearBuffers(ranges) {\n if (!ranges || !buffer || ranges.length === 0) return;\n\n pendingPruningRanges.push.apply(pendingPruningRanges, ranges);\n if (isPruningInProgress) {\n return;\n }\n\n clearNextRange();\n }\n\n function clearNextRange() {\n // If there's nothing to prune reset state\n if (pendingPruningRanges.length === 0 || !buffer) {\n logger.debug('Nothing to prune, halt pruning');\n pendingPruningRanges = [];\n isPruningInProgress = false;\n return;\n }\n\n const sourceBuffer = buffer.getBuffer();\n // If there's nothing buffered any pruning is invalid, so reset our state\n if (!sourceBuffer || !sourceBuffer.buffered || sourceBuffer.buffered.length === 0) {\n logger.debug('SourceBuffer is empty (or does not exist), halt pruning');\n pendingPruningRanges = [];\n isPruningInProgress = false;\n return;\n }\n\n const range = pendingPruningRanges.shift();\n logger.debug('Removing buffer from:', range.start, 'to', range.end);\n isPruningInProgress = true;\n\n // If removing buffer ahead current playback position, update maxAppendedIndex\n const currentTime = playbackController.getTime();\n if (currentTime < range.end) {\n isBufferingCompleted = false;\n maxAppendedIndex = 0;\n }\n\n buffer.remove(range.start, range.end, range.force);\n }\n\n function onRemoved(e) {\n if (buffer !== e.buffer) return;\n\n logger.debug('onRemoved buffer from:', e.from, 'to', e.to);\n\n const ranges = buffer.getAllBufferRanges();\n showBufferRanges(ranges);\n\n if (pendingPruningRanges.length === 0) {\n isPruningInProgress = false;\n }\n\n if (e.unintended) {\n logger.warn('Detected unintended removal from:', e.from, 'to', e.to, 'setting index handler time to', e.from);\n triggerEvent(Events.SEEK_TARGET, {time: e.from, mediaType: type, streamId: streamInfo.id});\n }\n\n if (isPruningInProgress) {\n clearNextRange();\n } else {\n if (!replacingBuffer) {\n updateBufferLevel();\n } else {\n replacingBuffer = false;\n if (mediaChunk) {\n appendToBuffer(mediaChunk);\n }\n }\n triggerEvent(Events.BUFFER_CLEARED, {\n from: e.from,\n to: e.to,\n unintended: e.unintended,\n hasEnoughSpaceToAppend: hasEnoughSpaceToAppend(),\n quotaExceeded: isQuotaExceeded\n });\n }\n }\n\n function updateBufferTimestampOffset(representationInfo) {\n if (!representationInfo || representationInfo.MSETimeOffset === undefined) return;\n // Each track can have its own @presentationTimeOffset, so we should set the offset\n // if it has changed after switching the quality or updating an mpd\n if (buffer && buffer.updateTimestampOffset) {\n buffer.updateTimestampOffset(representationInfo.MSETimeOffset);\n }\n }\n\n function updateAppendWindow() {\n if (buffer && !isBufferingCompleted) {\n buffer.updateAppendWindow(streamInfo);\n }\n }\n\n function onDataUpdateCompleted(e) {\n if (e.error || isBufferingCompleted) return;\n updateBufferTimestampOffset(e.currentRepresentation);\n }\n\n function onStreamCompleted(e) {\n lastIndex = e.request.index;\n checkIfBufferingCompleted();\n }\n\n function onCurrentTrackChanged(e) {\n if (e.newMediaInfo.streamInfo.id !== streamInfo.id || e.newMediaInfo.type !== type) return;\n\n const ranges = buffer && buffer.getAllBufferRanges();\n if (!ranges) return;\n\n logger.info('Track change asked');\n if (mediaController.getSwitchMode(type) === Constants.TRACK_SWITCH_MODE_ALWAYS_REPLACE) {\n if (ranges && ranges.length > 0 && playbackController.getTimeToStreamEnd() > settings.get().streaming.stallThreshold) {\n isBufferingCompleted = false;\n lastIndex = Number.POSITIVE_INFINITY;\n }\n }\n }\n\n function onWallclockTimeUpdated() {\n wallclockTicked++;\n const secondsElapsed = (wallclockTicked * (settings.get().streaming.wallclockTimeUpdateInterval / 1000));\n if ((secondsElapsed >= settings.get().streaming.bufferPruningInterval)) {\n wallclockTicked = 0;\n pruneBuffer();\n }\n }\n\n function onPlaybackRateChanged() {\n checkIfSufficientBuffer();\n }\n\n function getBuffer() {\n return buffer;\n }\n\n function setBuffer(newBuffer) {\n buffer = newBuffer;\n }\n\n function getBufferLevel() {\n return bufferLevel;\n }\n\n function setMediaSource(value, mediaInfo) {\n mediaSource = value;\n if (buffer && mediaInfo) { //if we have a prebuffer, we should prepare to discharge it, and make a new sourceBuffer ready\n if (typeof buffer.discharge === 'function') {\n dischargeBuffer = buffer;\n createBuffer(mediaInfo);\n }\n }\n }\n\n function getMediaSource() {\n return mediaSource;\n }\n\n function replaceBuffer() {\n replacingBuffer = true;\n }\n\n function getIsBufferingCompleted() {\n return isBufferingCompleted;\n }\n\n function getIsPruningInProgress() {\n return isPruningInProgress;\n }\n\n function getTotalBufferedTime() {\n const ranges = buffer.getAllBufferRanges();\n let totalBufferedTime = 0;\n let ln,\n i;\n\n if (!ranges) return totalBufferedTime;\n\n for (i = 0, ln = ranges.length; i < ln; i++) {\n totalBufferedTime += ranges.end(i) - ranges.start(i);\n }\n\n return totalBufferedTime;\n }\n\n function hasEnoughSpaceToAppend() {\n const totalBufferedTime = getTotalBufferedTime();\n return (totalBufferedTime < criticalBufferLevel);\n }\n\n function triggerEvent(eventType, data) {\n let payload = data || {};\n eventBus.trigger(eventType, payload, { streamId: streamInfo.id, mediaType: type });\n }\n\n function resetInitialSettings(errored, keepBuffers) {\n criticalBufferLevel = Number.POSITIVE_INFINITY;\n bufferState = undefined;\n requiredQuality = AbrController.QUALITY_DEFAULT;\n lastIndex = Number.POSITIVE_INFINITY;\n maxAppendedIndex = 0;\n appendedBytesInfo = null;\n isBufferingCompleted = false;\n isPruningInProgress = false;\n isQuotaExceeded = false;\n seekClearedBufferingCompleted = false;\n bufferLevel = 0;\n wallclockTicked = 0;\n pendingPruningRanges = [];\n seekTarget = NaN;\n\n if (buffer) {\n if (!errored) {\n buffer.abort();\n }\n buffer.reset(keepBuffers);\n buffer = null;\n }\n\n replacingBuffer = false;\n }\n\n function reset(errored, keepBuffers) {\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, this);\n eventBus.off(Events.INIT_FRAGMENT_LOADED, onInitFragmentLoaded, this);\n eventBus.off(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, this);\n eventBus.off(Events.QUALITY_CHANGE_REQUESTED, onQualityChanged, this);\n eventBus.off(Events.STREAM_COMPLETED, onStreamCompleted, this);\n eventBus.off(Events.PLAYBACK_PLAYING, onPlaybackPlaying, this);\n eventBus.off(Events.PLAYBACK_PROGRESS, onPlaybackProgression, this);\n eventBus.off(Events.PLAYBACK_TIME_UPDATED, onPlaybackProgression, this);\n eventBus.off(Events.PLAYBACK_RATE_CHANGED, onPlaybackRateChanged, this);\n eventBus.off(Events.PLAYBACK_SEEKING, onPlaybackSeeking, this);\n eventBus.off(Events.PLAYBACK_SEEKED, onPlaybackSeeked, this);\n eventBus.off(Events.PLAYBACK_STALLED, onPlaybackStalled, this);\n eventBus.off(Events.WALLCLOCK_TIME_UPDATED, onWallclockTimeUpdated, this);\n eventBus.off(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, this);\n eventBus.off(Events.SOURCEBUFFER_REMOVE_COMPLETED, onRemoved, this);\n\n resetInitialSettings(errored, keepBuffers);\n }\n\n instance = {\n initialize,\n getStreamId,\n getType,\n getBufferControllerType,\n getRepresentationInfo,\n createBuffer,\n dischargePreBuffer,\n getBuffer,\n setBuffer,\n getBufferLevel,\n getRangeAt,\n setMediaSource,\n getMediaSource,\n appendInitSegment,\n replaceBuffer,\n getIsBufferingCompleted,\n getIsPruningInProgress,\n reset,\n updateAppendWindow\n };\n\n setup();\n return instance;\n}\n\nBufferController.__dashjs_factory_name = BUFFER_CONTROLLER_TYPE;\nexport default FactoryMaker.getClassFactory(BufferController);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport EventBus from '../../core/EventBus';\nimport MediaPlayerEvents from '../../streaming/MediaPlayerEvents';\nimport XHRLoader from '../net/XHRLoader';\n\nfunction EventController() {\n\n const MPD_RELOAD_SCHEME = 'urn:mpeg:dash:event:2012';\n const MPD_RELOAD_VALUE = 1;\n\n const MPD_CALLBACK_SCHEME = 'urn:mpeg:dash:event:callback:2015';\n const MPD_CALLBACK_VALUE = 1;\n\n const REFRESH_DELAY = 100;\n const REMAINING_EVENTS_THRESHOLD = 300;\n\n const EVENT_HANDLED_STATES = {\n DISCARDED: 'discarded',\n UPDATED: 'updated',\n ADDED: 'added'\n };\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n inlineEvents, // Holds all Inline Events not triggered yet\n inbandEvents, // Holds all Inband Events not triggered yet\n eventInterval, // variable holding the setInterval\n lastEventTimerCall,\n manifestUpdater,\n playbackController,\n eventHandlingInProgress,\n isStarted;\n\n /**\n * Internal setup when class is instanced\n */\n function _setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n _resetInitialSettings();\n }\n\n /**\n * Checks if the provded configuration is valid\n */\n function checkConfig() {\n if (!manifestUpdater || !playbackController) {\n throw new Error('setConfig function has to be called previously');\n }\n }\n\n /**\n * Reset to initial settings\n */\n function _resetInitialSettings() {\n isStarted = false;\n inlineEvents = {}; // Format inlineEvents[schemeIdUri]\n inbandEvents = {}; // Format inlineEvents[schemeIdUri]\n eventInterval = null;\n eventHandlingInProgress = false;\n lastEventTimerCall = Date.now() / 1000;\n }\n\n /**\n * Stops the EventController by clearing the event interval\n */\n function _stop() {\n try {\n if (eventInterval !== null && isStarted) {\n clearInterval(eventInterval);\n eventInterval = null;\n isStarted = false;\n _onStopEventController();\n }\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Starts the interval function of the EventController\n */\n function start() {\n try {\n checkConfig();\n logger.debug('Start Event Controller');\n if (!isStarted && !isNaN(REFRESH_DELAY)) {\n isStarted = true;\n eventInterval = setInterval(_onEventTimer, REFRESH_DELAY);\n }\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Add MPD events to the list of events.\n * Events that are not in the MPD anymore but not triggered yet will still be deleted.\n * Existing events might get updated.\n * @param {Array.} values\n */\n function addInlineEvents(values) {\n try {\n checkConfig();\n\n if (values) {\n for (let i = 0; i < values.length; i++) {\n let event = values[i];\n let result = _addOrUpdateEvent(event, inlineEvents, true);\n\n if (result === EVENT_HANDLED_STATES.ADDED) {\n logger.debug(`Added inline event with id ${event.id}`);\n // If we see the event for the first time we trigger it in onReceive mode\n _startEvent(event, values, MediaPlayerEvents.EVENT_MODE_ON_RECEIVE);\n } else if (result === EVENT_HANDLED_STATES.UPDATED) {\n logger.debug(`Updated inline event with id ${event.id}`);\n }\n }\n }\n logger.debug(`Added ${values.length} inline events`);\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Add EMSG events to the list of events\n * Messages with the same id within the scope of the same scheme_id_uri and value pair are equivalent , i.e. processing of any one event message box with the same id is sufficient.\n * @param {Array.} values\n */\n function addInbandEvents(values) {\n try {\n checkConfig();\n\n for (let i = 0; i < values.length; i++) {\n let event = values[i];\n let result = _addOrUpdateEvent(event, inbandEvents, false);\n\n if (result === EVENT_HANDLED_STATES.ADDED) {\n if (event.eventStream.schemeIdUri === MPD_RELOAD_SCHEME && inbandEvents[event.id] === undefined) {\n _handleManifestReloadEvent(event);\n }\n logger.debug('Added inband event with id ' + event.id);\n _startEvent(event, values, MediaPlayerEvents.EVENT_MODE_ON_RECEIVE);\n } else {\n logger.debug(`Inband event with scheme_id_uri ${event.eventStream.schemeIdUri}, value ${event.eventStream.value} and id ${event.id} was ignored because it has been added before.`);\n }\n }\n _onEventTimer();\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Adds or updates an event to/in the list of events\n * @param {object} event\n * @param {object} events\n * @param {boolean} shouldOverwriteExistingEvents\n * @return {string}\n * @private\n */\n function _addOrUpdateEvent(event, events, shouldOverwriteExistingEvents = false) {\n const schemeIdUri = event.eventStream.schemeIdUri;\n const value = event.eventStream.value;\n const id = event.id;\n let eventState = EVENT_HANDLED_STATES.DISCARDED;\n\n if (!events[schemeIdUri]) {\n events[schemeIdUri] = [];\n }\n\n const indexOfExistingEvent = events[schemeIdUri].findIndex((e) => {\n return ((!value || (e.eventStream.value && e.eventStream.value === value)) && (e.id === id));\n });\n\n if (indexOfExistingEvent === -1) {\n events[schemeIdUri].push(event);\n eventState = EVENT_HANDLED_STATES.ADDED;\n } else if (shouldOverwriteExistingEvents) {\n events[schemeIdUri][indexOfExistingEvent] = event;\n eventState = EVENT_HANDLED_STATES.UPDATED;\n }\n\n return eventState;\n }\n\n /**\n * Triggers an MPD reload\n * @param {object} event\n * @private\n */\n function _handleManifestReloadEvent(event) {\n try {\n if (event.eventStream.value == MPD_RELOAD_VALUE) {\n const validUntil = event.calculatedPresentationTime;\n let newDuration;\n if (event.calculatedPresentationTime == 0xFFFFFFFF) {//0xFF... means remaining duration unknown\n newDuration = NaN;\n } else {\n newDuration = event.calculatedPresentationTime + event.duration;\n }\n //logger.info('Manifest validity changed: Valid until: ' + validUntil + '; remaining duration: ' + newDuration);\n eventBus.trigger(MediaPlayerEvents.MANIFEST_VALIDITY_CHANGED, {\n id: event.id,\n validUntil: validUntil,\n newDuration: newDuration,\n newManifestValidAfter: NaN //event.message_data - this is an arraybuffer with a timestring in it, but not used yet\n }, {\n mode: MediaPlayerEvents.EVENT_MODE_ON_START\n });\n }\n } catch (e) {\n }\n }\n\n /**\n * Iterate through the eventList and trigger the events\n */\n function _onEventTimer() {\n try {\n if (!eventHandlingInProgress) {\n eventHandlingInProgress = true;\n const currentVideoTime = playbackController.getTime();\n let presentationTimeThreshold = (currentVideoTime - lastEventTimerCall);\n\n // For dynamic streams lastEventTimeCall will be large in the first iteration. Avoid firing all events at once.\n presentationTimeThreshold = lastEventTimerCall > 0 ? Math.max(0, presentationTimeThreshold) : 0;\n\n _triggerEvents(inbandEvents, presentationTimeThreshold, currentVideoTime);\n _triggerEvents(inlineEvents, presentationTimeThreshold, currentVideoTime);\n\n lastEventTimerCall = currentVideoTime;\n eventHandlingInProgress = false;\n }\n } catch (e) {\n eventHandlingInProgress = false;\n }\n }\n\n /**\n * When the EventController is stopped this callback is triggered. Starts the remaining events.\n * @private\n */\n function _onStopEventController() {\n try {\n // EventController might be stopped before the period is over. Before we stop the event controller we check for events that needs to be triggered at the period boundary.\n _triggerRemainingEvents(inbandEvents);\n _triggerRemainingEvents(inlineEvents);\n } catch (e) {\n\n }\n }\n\n /**\n * Iterate over a list of events and trigger the ones for which the presentation time is within the current timing interval\n * @param {object} events\n * @param {number} presentationTimeThreshold\n * @param {number} currentVideoTime\n * @private\n */\n function _triggerEvents(events, presentationTimeThreshold, currentVideoTime) {\n try {\n const callback = function (event) {\n if (event !== undefined) {\n const duration = !isNaN(event.duration) ? event.duration : 0;\n // The event is either about to start or has already been started and we are within its duration\n if ((event.calculatedPresentationTime <= currentVideoTime && event.calculatedPresentationTime + presentationTimeThreshold + duration >= currentVideoTime)) {\n _startEvent(event, events, MediaPlayerEvents.EVENT_MODE_ON_START);\n } else if (_eventHasExpired(currentVideoTime, duration + presentationTimeThreshold, event.calculatedPresentationTime) || _eventIsInvalid(event)) {\n logger.debug(`Deleting event ${event.id} as it is expired or invalid`);\n _removeEvent(events, event);\n }\n }\n };\n\n _iterateAndTriggerCallback(events, callback);\n } catch (e) {\n }\n }\n\n /**\n * Triggers the remaining events after the EventController has been stopped\n * @param {object} events\n * @private\n */\n function _triggerRemainingEvents(events) {\n try {\n const currentTime = playbackController.getTime();\n const callback = function (event) {\n const periodDuration = event.eventStream && event.eventStream.period && !isNaN(event.eventStream.period.duration) ? event.eventStream.period.duration : NaN;\n const periodStart = event.eventStream && event.eventStream.period && !isNaN(event.eventStream.period.start) ? event.eventStream.period.start : NaN;\n\n if (isNaN(periodDuration) || isNaN(periodStart)) {\n return;\n }\n\n const calculatedPresentationTimeInSeconds = event.calculatedPresentationTime;\n\n if (Math.abs(calculatedPresentationTimeInSeconds - currentTime) < REMAINING_EVENTS_THRESHOLD) {\n _startEvent(event, events, MediaPlayerEvents.EVENT_MODE_ON_START);\n }\n\n };\n\n _iterateAndTriggerCallback(events, callback());\n\n } catch (e) {\n\n }\n }\n\n /**\n * Iterates over the inline/inband event object and triggers a callback for each event\n * @param {object} events\n * @param {function} callback\n * @private\n */\n function _iterateAndTriggerCallback(events, callback) {\n try {\n if (events) {\n const schemeIdUris = Object.keys(events);\n for (let i = 0; i < schemeIdUris.length; i++) {\n const schemeIdEvents = events[schemeIdUris[i]];\n schemeIdEvents.forEach((event) => {\n if (event !== undefined) {\n callback(event);\n }\n });\n }\n }\n } catch (e) {\n\n }\n }\n\n /**\n * Checks if an event is expired. For instance if the presentationTime + the duration of an event are smaller than the current video time.\n * @param {number} currentVideoTime\n * @param {number} threshold\n * @param {number} calculatedPresentationTimeInSeconds\n * @return {boolean}\n * @private\n */\n function _eventHasExpired(currentVideoTime, threshold, calculatedPresentationTimeInSeconds) {\n try {\n return currentVideoTime - threshold > calculatedPresentationTimeInSeconds;\n } catch (e) {\n return false;\n }\n }\n\n /**\n * Checks if an event is invalid. This is the case if the end time of the parent period is smaller than the presentation time of the event.\n * @param {object} event\n * @return {boolean}\n * @private\n */\n function _eventIsInvalid(event) {\n try {\n const periodEndTime = event.eventStream.period.start + event.eventStream.period.duration;\n\n return event.calculatedPresentationTime > periodEndTime;\n } catch (e) {\n return false;\n }\n }\n\n /**\n * Starts an event. Depending on the schemeIdUri we distinguis between\n * - MPD Reload events\n * - MPD Callback events\n * - Events to be dispatched to the application\n * Events should be removed from the list before beeing triggered. Otherwise the event handler might cause an error and the remove function will not be called.\n * @param {object} event\n * @param {object} events\n * @param {String} mode\n * @private\n */\n function _startEvent(event, events, mode) {\n try {\n const currentVideoTime = playbackController.getTime();\n const eventId = event.id;\n\n if (mode === MediaPlayerEvents.EVENT_MODE_ON_RECEIVE) {\n logger.debug(`Received event ${eventId}`);\n eventBus.trigger(event.eventStream.schemeIdUri, { event: event }, { mode });\n return;\n }\n\n if (event.eventStream.schemeIdUri === MPD_RELOAD_SCHEME && event.eventStream.value === MPD_RELOAD_VALUE) {\n if (event.duration !== 0 || event.presentationTimeDelta !== 0) { //If both are set to zero, it indicates the media is over at this point. Don't reload the manifest.\n logger.debug(`Starting manifest refresh event ${eventId} at ${currentVideoTime}`);\n _removeEvent(events, event);\n _refreshManifest();\n }\n } else if (event.eventStream.schemeIdUri === MPD_CALLBACK_SCHEME && event.eventStream.value === MPD_CALLBACK_VALUE) {\n logger.debug(`Starting callback event ${eventId} at ${currentVideoTime}`);\n _removeEvent(events, event);\n _sendCallbackRequest(event.messageData);\n } else {\n logger.debug(`Starting event ${eventId} at ${currentVideoTime}`);\n _removeEvent(events, event);\n eventBus.trigger(event.eventStream.schemeIdUri, { event: event }, { mode });\n }\n\n } catch (e) {\n }\n }\n\n /**\n * Removes an event from the list. If this is the last event of type \"schemeIdUri\" the corresponding schemeIdUri Object in the list of events is deleted.\n * @param {object} events\n * @param {object} event\n * @private\n */\n function _removeEvent(events, event) {\n const schemeIdUri = event.eventStream.schemeIdUri;\n const value = event.eventStream.value;\n const id = event.id;\n\n events[schemeIdUri] = events[schemeIdUri].filter((e) => {\n return (value && e.eventStream.value && e.eventStream.value !== value) || (e.id !== id);\n });\n\n if (events[schemeIdUri].length === 0) {\n delete events[schemeIdUri];\n }\n\n }\n\n /**\n * Refresh the manifest\n * @private\n */\n function _refreshManifest() {\n try {\n checkConfig();\n manifestUpdater.refreshManifest();\n } catch (e) {\n }\n }\n\n /**\n * Send a callback request\n * @param {String} url\n * @private\n */\n function _sendCallbackRequest(url) {\n try {\n let loader = XHRLoader(context).create({});\n loader.load({\n method: 'get',\n url: url,\n request: {\n responseType: 'arraybuffer'\n }\n });\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Set the config of the EventController\n * @param {object} config\n */\n function setConfig(config) {\n try {\n if (!config) {\n return;\n }\n\n if (config.manifestUpdater) {\n manifestUpdater = config.manifestUpdater;\n }\n\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Returns all inline events that have not been triggered yet\n * @return {object}\n */\n function getInlineEvents() {\n return inlineEvents;\n }\n\n /**\n * Returns all inband events that have not been triggered yet\n * @return {object}\n */\n function getInbandEvents() {\n return inbandEvents;\n }\n\n /**\n * Stop the EventController and reset all initial settings\n */\n function reset() {\n _stop();\n _resetInitialSettings();\n }\n\n instance = {\n addInlineEvents,\n addInbandEvents,\n getInbandEvents,\n getInlineEvents,\n start,\n setConfig,\n reset\n };\n\n _setup();\n\n return instance;\n}\n\nEventController.__dashjs_factory_name = 'EventController';\nexport default FactoryMaker.getSingletonFactory(EventController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport DataChunk from '../vo/DataChunk';\nimport FragmentModel from '../models/FragmentModel';\nimport FragmentLoader from '../FragmentLoader';\nimport RequestModifier from '../utils/RequestModifier';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport Errors from '../../core/errors/Errors';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nfunction FragmentController( config ) {\n\n config = config || {};\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n const errHandler = config.errHandler;\n const mediaPlayerModel = config.mediaPlayerModel;\n const dashMetrics = config.dashMetrics;\n const debug = Debug(context).getInstance();\n const streamInfo = config.streamInfo;\n\n let instance,\n logger,\n fragmentModels;\n\n function setup() {\n logger = debug.getLogger(instance);\n resetInitialSettings();\n eventBus.on(Events.FRAGMENT_LOADING_COMPLETED, onFragmentLoadingCompleted, instance);\n eventBus.on(Events.FRAGMENT_LOADING_PROGRESS, onFragmentLoadingCompleted, instance);\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function getModel(type) {\n let model = fragmentModels[type];\n if (!model) {\n model = FragmentModel(context).create({\n streamInfo: streamInfo,\n type: type,\n dashMetrics: dashMetrics,\n fragmentLoader: FragmentLoader(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n errHandler: errHandler,\n requestModifier: RequestModifier(context).getInstance(),\n settings: config.settings,\n boxParser: config.boxParser,\n eventBus: eventBus,\n events: Events,\n errors: Errors,\n dashConstants: config.dashConstants,\n urlUtils: config.urlUtils\n }),\n debug: debug,\n eventBus: eventBus,\n events: Events\n });\n\n fragmentModels[type] = model;\n }\n\n return model;\n }\n\n function resetInitialSettings() {\n for (let model in fragmentModels) {\n fragmentModels[model].reset();\n }\n fragmentModels = {};\n }\n\n function reset() {\n eventBus.off(Events.FRAGMENT_LOADING_COMPLETED, onFragmentLoadingCompleted, this);\n eventBus.off(Events.FRAGMENT_LOADING_PROGRESS, onFragmentLoadingCompleted, this);\n resetInitialSettings();\n }\n\n function createDataChunk(bytes, request, streamId, endFragment) {\n const chunk = new DataChunk();\n\n chunk.streamId = streamId;\n chunk.mediaInfo = request.mediaInfo;\n chunk.segmentType = request.type;\n chunk.start = request.startTime;\n chunk.duration = request.duration;\n chunk.end = chunk.start + chunk.duration;\n chunk.bytes = bytes;\n chunk.index = request.index;\n chunk.quality = request.quality;\n chunk.representationId = request.representationId;\n chunk.endFragment = endFragment;\n\n return chunk;\n }\n\n function onFragmentLoadingCompleted(e) {\n // Event propagation may have been stopped (see MssHandler)\n if (!e.sender) return;\n\n const request = e.request;\n const bytes = e.response;\n const isInit = request.isInitializationRequest();\n const strInfo = request.mediaInfo.streamInfo;\n\n if (e.error) {\n if (request.mediaType === Constants.AUDIO || request.mediaType === Constants.VIDEO || request.mediaType === Constants.FRAGMENTED_TEXT) {\n // add service location to blacklist controller - only for audio or video. text should not set errors\n eventBus.trigger(Events.SERVICE_LOCATION_BLACKLIST_ADD, { entry: e.request.serviceLocation });\n }\n }\n\n if (!bytes || !strInfo) {\n logger.warn('No ' + request.mediaType + ' bytes to push or stream is inactive.');\n return;\n }\n const chunk = createDataChunk(bytes, request, streamInfo.id, e.type !== Events.FRAGMENT_LOADING_PROGRESS);\n eventBus.trigger(isInit ? Events.INIT_FRAGMENT_LOADED : Events.MEDIA_FRAGMENT_LOADED,\n {\n chunk: chunk,\n request: request\n },\n { streamId: strInfo.id, mediaType: request.mediaType }\n );\n }\n\n instance = {\n getStreamId: getStreamId,\n getModel: getModel,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nFragmentController.__dashjs_factory_name = 'FragmentController';\nexport default FactoryMaker.getClassFactory(FragmentController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport Events from '../../core/events/Events';\nimport EventBus from '../../core/EventBus';\n\nconst GAP_HANDLER_INTERVAL = 100;\nconst THRESHOLD_TO_STALLS = 30;\nconst GAP_THRESHOLD = 0.1;\n\nfunction GapController() {\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n lastPlaybackTime,\n settings,\n wallclockTicked,\n gapHandlerInterval,\n lastGapJumpPosition,\n playbackController,\n streamController,\n videoModel,\n timelineConverter,\n adapter,\n jumpTimeoutHandler,\n logger;\n\n function initialize() {\n registerEvents();\n }\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n\n reset();\n }\n\n function reset() {\n stopGapHandler();\n unregisterEvents();\n resetInitialSettings();\n }\n\n function resetInitialSettings() {\n gapHandlerInterval = null;\n lastGapJumpPosition = NaN;\n wallclockTicked = 0;\n jumpTimeoutHandler = null;\n }\n\n function setConfig(config) {\n if (!config) {\n return;\n }\n if (config.settings) {\n settings = config.settings;\n }\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.timelineConverter) {\n timelineConverter = config.timelineConverter;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n }\n\n function registerEvents() {\n eventBus.on(Events.WALLCLOCK_TIME_UPDATED, _onWallclockTimeUpdated, this);\n eventBus.on(Events.PLAYBACK_SEEKING, _onPlaybackSeeking, this);\n eventBus.on(Events.BYTES_APPENDED_END_FRAGMENT, onBytesAppended, instance);\n }\n\n function unregisterEvents() {\n eventBus.off(Events.WALLCLOCK_TIME_UPDATED, _onWallclockTimeUpdated, this);\n eventBus.off(Events.PLAYBACK_SEEKING, _onPlaybackSeeking, this);\n eventBus.off(Events.BYTES_APPENDED_END_FRAGMENT, onBytesAppended, instance);\n }\n\n function onBytesAppended() {\n if (!gapHandlerInterval) {\n startGapHandler();\n }\n }\n\n function _onPlaybackSeeking() {\n if (jumpTimeoutHandler) {\n clearTimeout(jumpTimeoutHandler);\n jumpTimeoutHandler = null;\n }\n }\n\n function _onWallclockTimeUpdated(/*e*/) {\n if (!_shouldCheckForGaps()) {\n return;\n }\n\n wallclockTicked++;\n if (wallclockTicked >= THRESHOLD_TO_STALLS) {\n const currentTime = playbackController.getTime();\n if (lastPlaybackTime === currentTime) {\n jumpGap(currentTime, true);\n } else {\n lastPlaybackTime = currentTime;\n lastGapJumpPosition = NaN;\n }\n wallclockTicked = 0;\n }\n }\n\n function _shouldCheckForGaps() {\n return settings.get().streaming.jumpGaps && streamController.getActiveStreamProcessors().length > 0 &&\n (!playbackController.isSeeking() || streamController.hasStreamFinishedBuffering(streamController.getActiveStream())) && !playbackController.isPaused() && !streamController.getIsStreamSwitchInProgress() &&\n !streamController.getHasMediaOrIntialisationError();\n }\n\n function getNextRangeIndex(ranges, currentTime) {\n try {\n\n if (!ranges || (ranges.length <= 1 && currentTime > 0)) {\n return NaN;\n }\n let nextRangeIndex = NaN;\n let j = 0;\n\n while (isNaN(nextRangeIndex) && j < ranges.length) {\n const rangeEnd = j > 0 ? ranges.end(j - 1) : 0;\n if (currentTime < ranges.start(j) && rangeEnd - currentTime < GAP_THRESHOLD) {\n nextRangeIndex = j;\n }\n j += 1;\n }\n return nextRangeIndex;\n\n } catch (e) {\n return null;\n }\n }\n\n\n function startGapHandler() {\n try {\n if (!gapHandlerInterval) {\n logger.debug('Starting the gap controller');\n gapHandlerInterval = setInterval(() => {\n if (!_shouldCheckForGaps()) {\n return;\n }\n const currentTime = playbackController.getTime();\n jumpGap(currentTime);\n\n }, GAP_HANDLER_INTERVAL);\n }\n } catch (e) {\n }\n }\n\n function stopGapHandler() {\n logger.debug('Stopping the gap controller');\n if (gapHandlerInterval) {\n clearInterval(gapHandlerInterval);\n gapHandlerInterval = null;\n }\n }\n\n function jumpGap(currentTime, playbackStalled = false) {\n const smallGapLimit = settings.get().streaming.smallGapLimit;\n const jumpLargeGaps = settings.get().streaming.jumpLargeGaps;\n const ranges = videoModel.getBufferRange();\n let nextRangeIndex;\n let seekToPosition = NaN;\n let jumpToStreamEnd = false;\n\n\n // Get the range just after current time position\n nextRangeIndex = getNextRangeIndex(ranges, currentTime);\n\n if (!isNaN(nextRangeIndex)) {\n const start = ranges.start(nextRangeIndex);\n const gap = start - currentTime;\n if (gap > 0 && (gap <= smallGapLimit || jumpLargeGaps)) {\n seekToPosition = start;\n }\n }\n\n // Playback has stalled before period end. We seek to the end of the period\n const timeToStreamEnd = playbackController.getTimeToStreamEnd();\n if (isNaN(seekToPosition) && playbackStalled && isFinite(timeToStreamEnd) && !isNaN(timeToStreamEnd) && timeToStreamEnd < smallGapLimit) {\n seekToPosition = parseFloat(playbackController.getStreamEndTime().toFixed(5));\n jumpToStreamEnd = true;\n }\n\n if (seekToPosition > 0 && lastGapJumpPosition !== seekToPosition && seekToPosition > currentTime && !jumpTimeoutHandler) {\n const timeUntilGapEnd = seekToPosition - currentTime;\n\n if (jumpToStreamEnd) {\n logger.warn(`Jumping to end of stream because of gap from ${currentTime} to ${seekToPosition}. Gap duration: ${timeUntilGapEnd}`);\n eventBus.trigger(Events.GAP_CAUSED_SEEK_TO_PERIOD_END, {\n seekTime: seekToPosition,\n duration: timeUntilGapEnd\n });\n } else {\n const isDynamic = playbackController.getIsDynamic();\n const start = nextRangeIndex > 0 ? ranges.end(nextRangeIndex - 1) : currentTime;\n const timeToWait = !isDynamic ? 0 : timeUntilGapEnd * 1000;\n\n jumpTimeoutHandler = window.setTimeout(() => {\n playbackController.seek(seekToPosition, true, true);\n logger.warn(`Jumping gap starting at ${start} and ending at ${seekToPosition}. Jumping by: ${timeUntilGapEnd}`);\n eventBus.trigger(Events.GAP_CAUSED_INTERNAL_SEEK, {\n seekTime: seekToPosition,\n duration: timeUntilGapEnd\n });\n jumpTimeoutHandler = null;\n }, timeToWait);\n }\n lastGapJumpPosition = seekToPosition;\n }\n }\n\n instance = {\n reset,\n setConfig,\n initialize\n };\n\n setup();\n\n return instance;\n}\n\nGapController.__dashjs_factory_name = 'GapController';\nexport default FactoryMaker.getSingletonFactory(GapController);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport Events from '../../core/events/Events';\nimport EventBus from '../../core/EventBus';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nfunction MediaController() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n tracks,\n settings,\n initialSettings,\n domStorage;\n\n const validTrackSwitchModes = [\n Constants.TRACK_SWITCH_MODE_ALWAYS_REPLACE,\n Constants.TRACK_SWITCH_MODE_NEVER_REPLACE\n ];\n\n const validTrackSelectionModes = [\n Constants.TRACK_SELECTION_MODE_HIGHEST_BITRATE,\n Constants.TRACK_SELECTION_MODE_WIDEST_RANGE\n ];\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n reset();\n }\n\n /**\n * @param {string} type\n * @param {StreamInfo} streamInfo\n * @memberof MediaController#\n */\n function checkInitialMediaSettingsForType(type, streamInfo) {\n let settings = getInitialSettings(type);\n const tracksForType = getTracksFor(type, streamInfo);\n const tracks = [];\n\n if (!settings) {\n settings = domStorage.getSavedMediaSettings(type);\n setInitialSettings(type, settings);\n }\n\n if (!tracksForType || (tracksForType.length === 0)) return;\n\n if (settings) {\n tracksForType.forEach(function (track) {\n if (matchSettings(settings, track)) {\n tracks.push(track);\n }\n });\n }\n\n if (tracks.length === 0) {\n setTrack(selectInitialTrack(type, tracksForType), true);\n } else {\n if (tracks.length > 1) {\n setTrack(selectInitialTrack(type, tracks));\n } else {\n setTrack(tracks[0]);\n }\n }\n }\n\n /**\n * @param {MediaInfo} track\n * @memberof MediaController#\n */\n function addTrack(track) {\n if (!track) return;\n\n const mediaType = track.type;\n if (!isMultiTrackSupportedByType(mediaType)) return;\n\n let streamId = track.streamInfo.id;\n if (!tracks[streamId]) {\n tracks[streamId] = createTrackInfo();\n }\n\n const mediaTracks = tracks[streamId][mediaType].list;\n for (let i = 0, len = mediaTracks.length; i < len; ++i) {\n //track is already set.\n if (isTracksEqual(mediaTracks[i], track)) {\n return;\n }\n }\n\n mediaTracks.push(track);\n\n let initSettings = getInitialSettings(mediaType);\n if (initSettings && (matchSettings(initSettings, track)) && !getCurrentTrackFor(mediaType, track.streamInfo)) {\n setTrack(track);\n }\n }\n\n /**\n * @param {string} type\n * @param {StreamInfo} streamInfo\n * @returns {Array}\n * @memberof MediaController#\n */\n function getTracksFor(type, streamInfo) {\n if (!type || !streamInfo) return [];\n\n const id = streamInfo.id;\n\n if (!tracks[id] || !tracks[id][type]) return [];\n\n return tracks[id][type].list;\n }\n\n /**\n * @param {string} type\n * @param {StreamInfo} streamInfo\n * @returns {Object|null}\n * @memberof MediaController#\n */\n function getCurrentTrackFor(type, streamInfo) {\n if (!type || !streamInfo || (streamInfo && !tracks[streamInfo.id])) return null;\n return tracks[streamInfo.id][type].current;\n }\n\n /**\n * @param {MediaInfo} track\n * @returns {boolean}\n * @memberof MediaController#\n */\n function isCurrentTrack(track) {\n if (!track) {\n return false;\n }\n const type = track.type;\n const id = track.streamInfo.id;\n\n return (tracks[id] && tracks[id][type] && isTracksEqual(tracks[id][type].current, track));\n }\n\n /**\n * @param {MediaInfo} track\n * @param {boolean} noSettingsSave specify if settings must be not be saved\n * @memberof MediaController#\n */\n function setTrack(track, noSettingsSave) {\n if (!track || !track.streamInfo) return;\n\n const type = track.type;\n const streamInfo = track.streamInfo;\n const id = streamInfo.id;\n const current = getCurrentTrackFor(type, streamInfo);\n\n if (!tracks[id] || !tracks[id][type] || isTracksEqual(track, current)) return;\n\n tracks[id][type].current = track;\n\n if (tracks[id][type].current && !(noSettingsSave && type === Constants.FRAGMENTED_TEXT)) {\n eventBus.trigger(Events.CURRENT_TRACK_CHANGED, {\n oldMediaInfo: current,\n newMediaInfo: track,\n switchMode: getSwitchMode(type)\n });\n }\n\n if (!noSettingsSave) {\n\n let settings = extractSettings(track);\n\n if (!settings || !tracks[id][type].storeLastSettings) return;\n\n if (settings.roles) {\n settings.role = settings.roles[0];\n delete settings.roles;\n }\n\n if (settings.accessibility) {\n settings.accessibility = settings.accessibility[0];\n }\n\n if (settings.audioChannelConfiguration) {\n settings.audioChannelConfiguration = settings.audioChannelConfiguration[0];\n }\n\n domStorage.setSavedMediaSettings(type, settings);\n }\n }\n\n /**\n * @param {string} type\n * @param {Object} value\n * @memberof MediaController#\n */\n function setInitialSettings(type, value) {\n if (!type || !value) return;\n\n initialSettings[type] = value;\n }\n\n /**\n * @param {string} type\n * @returns {Object|null}\n * @memberof MediaController#\n */\n function getInitialSettings(type) {\n if (!type) return null;\n\n return initialSettings[type];\n }\n\n /**\n * @memberof MediaController#\n */\n function saveTextSettingsDisabled() {\n domStorage.setSavedMediaSettings(Constants.FRAGMENTED_TEXT, null);\n }\n\n /**\n * @param {string} type\n * @param {string} mode\n * @memberof MediaController#\n * @deprecated Please use updateSettings({streaming: { trackSwitchMode: mode } }) instead\n */\n function setSwitchMode(type, mode) {\n logger.warn('deprecated: Please use updateSettings({streaming: { trackSwitchMode: mode } }) instead');\n const isModeSupported = (validTrackSwitchModes.indexOf(mode) !== -1);\n\n if (!isModeSupported) {\n logger.warn('Track switch mode is not supported: ' + mode);\n return;\n }\n\n let switchMode = {};\n switchMode[type] = mode;\n\n settings.update({\n streaming: {\n trackSwitchMode: switchMode\n }\n });\n }\n\n /**\n * @param {string} type\n * @returns {string} mode\n * @memberof MediaController#\n */\n function getSwitchMode(type) {\n return settings.get().streaming.trackSwitchMode[type];\n }\n\n /**\n * @param {string} mode\n * @memberof MediaController#\n * @deprecated Please use updateSettings({streaming: { selectionModeForInitialTrack: mode } }) instead\n */\n function setSelectionModeForInitialTrack(mode) {\n logger.warn('deprecated: Please use updateSettings({streaming: { selectionModeForInitialTrack: mode } }) instead');\n const isModeSupported = (validTrackSelectionModes.indexOf(mode) !== -1);\n\n if (!isModeSupported) {\n logger.warn('Track selection mode is not supported: ' + mode);\n return;\n }\n\n settings.update({\n streaming: {\n selectionModeForInitialTrack: mode\n }\n });\n }\n\n /**\n * @returns {string} mode\n * @memberof MediaController#\n */\n function getSelectionModeForInitialTrack() {\n return settings.get().streaming.selectionModeForInitialTrack;\n }\n\n /**\n * @param {string} type\n * @returns {boolean}\n * @memberof MediaController#\n */\n function isMultiTrackSupportedByType(type) {\n return (type === Constants.AUDIO || type === Constants.VIDEO || type === Constants.TEXT ||\n type === Constants.FRAGMENTED_TEXT || type === Constants.IMAGE);\n }\n\n /**\n * @param {MediaInfo} t1 - first track to compare\n * @param {MediaInfo} t2 - second track to compare\n * @returns {boolean}\n * @memberof MediaController#\n */\n function isTracksEqual(t1, t2) {\n if (!t1 && !t2) {\n return true;\n }\n\n if (!t1 || !t2) {\n return false;\n }\n\n const sameId = t1.id === t2.id;\n const sameViewpoint = t1.viewpoint === t2.viewpoint;\n const sameLang = t1.lang === t2.lang;\n const sameRoles = t1.roles.toString() === t2.roles.toString();\n const sameAccessibility = t1.accessibility.toString() === t2.accessibility.toString();\n const sameAudioChannelConfiguration = t1.audioChannelConfiguration.toString() === t2.audioChannelConfiguration.toString();\n\n return (sameId && sameViewpoint && sameLang && sameRoles && sameAccessibility && sameAudioChannelConfiguration);\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.domStorage) {\n domStorage = config.domStorage;\n }\n\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n /**\n * @memberof MediaController#\n */\n function reset() {\n tracks = {};\n resetInitialSettings();\n }\n\n function extractSettings(mediaInfo) {\n const settings = {\n lang: mediaInfo.lang,\n viewpoint: mediaInfo.viewpoint,\n roles: mediaInfo.roles,\n accessibility: mediaInfo.accessibility,\n audioChannelConfiguration: mediaInfo.audioChannelConfiguration\n };\n let notEmpty = settings.lang || settings.viewpoint || (settings.role && settings.role.length > 0) ||\n (settings.accessibility && settings.accessibility.length > 0) || (settings.audioChannelConfiguration && settings.audioChannelConfiguration.length > 0);\n\n return notEmpty ? settings : null;\n }\n\n function matchSettings(settings, track) {\n const matchLang = !settings.lang || (track.lang.match(settings.lang));\n const matchViewPoint = !settings.viewpoint || (settings.viewpoint === track.viewpoint);\n const matchRole = !settings.role || !!track.roles.filter(function (item) {\n return item === settings.role;\n })[0];\n let matchAccessibility = !settings.accessibility || !!track.accessibility.filter(function (item) {\n return item === settings.accessibility;\n })[0];\n let matchAudioChannelConfiguration = !settings.audioChannelConfiguration || !!track.audioChannelConfiguration.filter(function (item) {\n return item === settings.audioChannelConfiguration;\n })[0];\n\n return (matchLang && matchViewPoint && matchRole && matchAccessibility && matchAudioChannelConfiguration);\n }\n\n function resetInitialSettings() {\n initialSettings = {\n audio: null,\n video: null,\n fragmentedText: null\n };\n }\n\n function selectInitialTrack(type, tracks) {\n if (type === Constants.FRAGMENTED_TEXT) return tracks[0];\n\n let mode = getSelectionModeForInitialTrack();\n let tmpArr = [];\n\n const getTracksWithHighestBitrate = function (trackArr) {\n let max = 0;\n let result = [];\n let tmp;\n\n trackArr.forEach(function (track) {\n tmp = Math.max.apply(Math, track.bitrateList.map(function (obj) { return obj.bandwidth; }));\n\n if (tmp > max) {\n max = tmp;\n result = [track];\n } else if (tmp === max) {\n result.push(track);\n }\n });\n\n return result;\n };\n const getTracksWithWidestRange = function (trackArr) {\n let max = 0;\n let result = [];\n let tmp;\n\n trackArr.forEach(function (track) {\n tmp = track.representationCount;\n\n if (tmp > max) {\n max = tmp;\n result = [track];\n } else if (tmp === max) {\n result.push(track);\n }\n });\n\n return result;\n };\n\n switch (mode) {\n case Constants.TRACK_SELECTION_MODE_HIGHEST_BITRATE:\n tmpArr = getTracksWithHighestBitrate(tracks);\n\n if (tmpArr.length > 1) {\n tmpArr = getTracksWithWidestRange(tmpArr);\n }\n break;\n case Constants.TRACK_SELECTION_MODE_WIDEST_RANGE:\n tmpArr = getTracksWithWidestRange(tracks);\n\n if (tmpArr.length > 1) {\n tmpArr = getTracksWithHighestBitrate(tracks);\n }\n break;\n default:\n logger.warn('Track selection mode is not supported: ' + mode);\n break;\n }\n\n return tmpArr[0];\n }\n\n function createTrackInfo() {\n return {\n audio: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n video: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n text: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n fragmentedText: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n image: {\n list: [],\n storeLastSettings: true,\n current: null\n }\n };\n }\n\n instance = {\n checkInitialMediaSettingsForType: checkInitialMediaSettingsForType,\n addTrack: addTrack,\n getTracksFor: getTracksFor,\n getCurrentTrackFor: getCurrentTrackFor,\n isCurrentTrack: isCurrentTrack,\n setTrack: setTrack,\n setInitialSettings: setInitialSettings,\n getInitialSettings: getInitialSettings,\n setSwitchMode: setSwitchMode,\n getSwitchMode: getSwitchMode,\n setSelectionModeForInitialTrack: setSelectionModeForInitialTrack,\n getSelectionModeForInitialTrack: getSelectionModeForInitialTrack,\n isMultiTrackSupportedByType: isMultiTrackSupportedByType,\n isTracksEqual: isTracksEqual,\n matchSettings: matchSettings,\n saveTextSettingsDisabled: saveTextSettingsDisabled,\n setConfig: setConfig,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nMediaController.__dashjs_factory_name = 'MediaController';\nconst factory = FactoryMaker.getSingletonFactory(MediaController);\nFactoryMaker.updateSingletonFactory(MediaController.__dashjs_factory_name, factory);\nexport default factory;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nfunction MediaSourceController() {\n\n let instance,\n logger;\n\n const context = this.context;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function createMediaSource() {\n\n let hasWebKit = ('WebKitMediaSource' in window);\n let hasMediaSource = ('MediaSource' in window);\n\n if (hasMediaSource) {\n return new MediaSource();\n } else if (hasWebKit) {\n return new WebKitMediaSource();\n }\n\n return null;\n }\n\n function attachMediaSource(source, videoModel) {\n\n let objectURL = window.URL.createObjectURL(source);\n\n videoModel.setSource(objectURL);\n\n return objectURL;\n }\n\n function detachMediaSource(videoModel) {\n videoModel.setSource(null);\n }\n\n function setDuration(source, value) {\n\n if (source.duration != value)\n source.duration = value;\n\n return source.duration;\n }\n\n function setSeekable(source, start, end) {\n if (source && typeof source.setLiveSeekableRange === 'function' && typeof source.clearLiveSeekableRange === 'function' &&\n source.readyState === 'open' && start >= 0 && start < end) {\n source.clearLiveSeekableRange();\n source.setLiveSeekableRange(start, end);\n }\n }\n\n function signalEndOfStream(source) {\n if (!source || source.readyState !== 'open') {\n return;\n }\n\n let buffers = source.sourceBuffers;\n\n for (let i = 0; i < buffers.length; i++) {\n if (buffers[i].updating) {\n return;\n }\n if (buffers[i].buffered.length === 0) {\n return;\n }\n }\n logger.info('call to mediaSource endOfStream');\n source.endOfStream();\n }\n\n instance = {\n createMediaSource: createMediaSource,\n attachMediaSource: attachMediaSource,\n detachMediaSource: detachMediaSource,\n setDuration: setDuration,\n setSeekable: setSeekable,\n signalEndOfStream: signalEndOfStream\n };\n\n setup();\n\n return instance;\n}\n\nMediaSourceController.__dashjs_factory_name = 'MediaSourceController';\nexport default FactoryMaker.getSingletonFactory(MediaSourceController);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport Events from '../../core/events/Events';\nimport EventBus from '../../core/EventBus';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nfunction MediaController() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n tracks,\n settings,\n initialSettings,\n domStorage;\n\n const validTrackSwitchModes = [\n Constants.TRACK_SWITCH_MODE_ALWAYS_REPLACE,\n Constants.TRACK_SWITCH_MODE_NEVER_REPLACE\n ];\n\n const validTrackSelectionModes = [\n Constants.TRACK_SELECTION_MODE_HIGHEST_BITRATE,\n Constants.TRACK_SELECTION_MODE_HIGHEST_EFFICIENCY,\n Constants.TRACK_SELECTION_MODE_WIDEST_RANGE\n ];\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n reset();\n }\n\n /**\n * @param {string} type\n * @param {StreamInfo} streamInfo\n * @memberof MediaController#\n */\n function checkInitialMediaSettingsForType(type, streamInfo) {\n let settings = getInitialSettings(type);\n const tracksForType = getTracksFor(type, streamInfo);\n const tracks = [];\n\n if (!settings) {\n settings = domStorage.getSavedMediaSettings(type);\n setInitialSettings(type, settings);\n }\n\n if (!tracksForType || (tracksForType.length === 0)) return;\n\n if (settings) {\n tracksForType.forEach(function (track) {\n if (matchSettings(settings, track)) {\n tracks.push(track);\n }\n });\n }\n\n if (tracks.length === 0) {\n setTrack(this.selectInitialTrack(type, tracksForType), true);\n } else {\n if (tracks.length > 1) {\n setTrack(this.selectInitialTrack(type, tracks));\n } else {\n setTrack(tracks[0]);\n }\n }\n }\n\n /**\n * @param {MediaInfo} track\n * @memberof MediaController#\n */\n function addTrack(track) {\n if (!track) return;\n\n const mediaType = track.type;\n if (!isMultiTrackSupportedByType(mediaType)) return;\n\n let streamId = track.streamInfo.id;\n if (!tracks[streamId]) {\n tracks[streamId] = createTrackInfo();\n }\n\n const mediaTracks = tracks[streamId][mediaType].list;\n for (let i = 0, len = mediaTracks.length; i < len; ++i) {\n //track is already set.\n if (isTracksEqual(mediaTracks[i], track)) {\n return;\n }\n }\n\n mediaTracks.push(track);\n\n let initSettings = getInitialSettings(mediaType);\n if (initSettings && (matchSettings(initSettings, track)) && !getCurrentTrackFor(mediaType, track.streamInfo)) {\n setTrack(track);\n }\n }\n\n /**\n * @param {string} type\n * @param {StreamInfo} streamInfo\n * @returns {Array}\n * @memberof MediaController#\n */\n function getTracksFor(type, streamInfo) {\n if (!type || !streamInfo) return [];\n\n const id = streamInfo.id;\n\n if (!tracks[id] || !tracks[id][type]) return [];\n\n return tracks[id][type].list;\n }\n\n /**\n * @param {string} type\n * @param {StreamInfo} streamInfo\n * @returns {Object|null}\n * @memberof MediaController#\n */\n function getCurrentTrackFor(type, streamInfo) {\n if (!type || !streamInfo || (streamInfo && !tracks[streamInfo.id])) return null;\n return tracks[streamInfo.id][type].current;\n }\n\n /**\n * @param {MediaInfo} track\n * @returns {boolean}\n * @memberof MediaController#\n */\n function isCurrentTrack(track) {\n if (!track) {\n return false;\n }\n const type = track.type;\n const id = track.streamInfo.id;\n\n return (tracks[id] && tracks[id][type] && isTracksEqual(tracks[id][type].current, track));\n }\n\n /**\n * @param {MediaInfo} track\n * @param {boolean} noSettingsSave specify if settings must be not be saved\n * @memberof MediaController#\n */\n function setTrack(track, noSettingsSave) {\n if (!track || !track.streamInfo) return;\n\n const type = track.type;\n const streamInfo = track.streamInfo;\n const id = streamInfo.id;\n const current = getCurrentTrackFor(type, streamInfo);\n\n if (!tracks[id] || !tracks[id][type] || isTracksEqual(track, current)) return;\n\n tracks[id][type].current = track;\n\n if (tracks[id][type].current && !(noSettingsSave && type === Constants.FRAGMENTED_TEXT)) {\n eventBus.trigger(Events.CURRENT_TRACK_CHANGED, {\n oldMediaInfo: current,\n newMediaInfo: track,\n switchMode: getSwitchMode(type)\n });\n }\n\n if (!noSettingsSave) {\n\n let settings = extractSettings(track);\n\n if (!settings || !tracks[id][type].storeLastSettings) return;\n\n if (settings.roles) {\n settings.role = settings.roles[0];\n delete settings.roles;\n }\n\n if (settings.accessibility) {\n settings.accessibility = settings.accessibility[0];\n }\n\n if (settings.audioChannelConfiguration) {\n settings.audioChannelConfiguration = settings.audioChannelConfiguration[0];\n }\n\n domStorage.setSavedMediaSettings(type, settings);\n }\n }\n\n /**\n * @param {string} type\n * @param {Object} value\n * @memberof MediaController#\n */\n function setInitialSettings(type, value) {\n if (!type || !value) return;\n\n initialSettings[type] = value;\n }\n\n /**\n * @param {string} type\n * @returns {Object|null}\n * @memberof MediaController#\n */\n function getInitialSettings(type) {\n if (!type) return null;\n\n return initialSettings[type];\n }\n\n /**\n * @memberof MediaController#\n */\n function saveTextSettingsDisabled() {\n domStorage.setSavedMediaSettings(Constants.FRAGMENTED_TEXT, null);\n }\n\n /**\n * @param {string} type\n * @param {string} mode\n * @memberof MediaController#\n * @deprecated Please use updateSettings({streaming: { trackSwitchMode: mode } }) instead\n */\n function setSwitchMode(type, mode) {\n logger.warn('deprecated: Please use updateSettings({streaming: { trackSwitchMode: mode } }) instead');\n const isModeSupported = (validTrackSwitchModes.indexOf(mode) !== -1);\n\n if (!isModeSupported) {\n logger.warn('Track switch mode is not supported: ' + mode);\n return;\n }\n\n let switchMode = {};\n switchMode[type] = mode;\n\n settings.update({\n streaming: {\n trackSwitchMode: switchMode\n }\n });\n }\n\n /**\n * @param {string} type\n * @returns {string} mode\n * @memberof MediaController#\n */\n function getSwitchMode(type) {\n return settings.get().streaming.trackSwitchMode[type];\n }\n\n /**\n * @param {string} mode\n * @memberof MediaController#\n * @deprecated Please use updateSettings({streaming: { selectionModeForInitialTrack: mode } }) instead\n */\n function setSelectionModeForInitialTrack(mode) {\n logger.warn('deprecated: Please use updateSettings({streaming: { selectionModeForInitialTrack: mode } }) instead');\n const isModeSupported = (validTrackSelectionModes.indexOf(mode) !== -1);\n\n if (!isModeSupported) {\n logger.warn('Track selection mode is not supported: ' + mode);\n return;\n }\n\n settings.update({\n streaming: {\n selectionModeForInitialTrack: mode\n }\n });\n }\n\n /**\n * @returns {string} mode\n * @memberof MediaController#\n */\n function getSelectionModeForInitialTrack() {\n return settings.get().streaming.selectionModeForInitialTrack;\n }\n\n /**\n * @param {string} type\n * @returns {boolean}\n * @memberof MediaController#\n */\n function isMultiTrackSupportedByType(type) {\n return (type === Constants.AUDIO || type === Constants.VIDEO || type === Constants.TEXT ||\n type === Constants.FRAGMENTED_TEXT || type === Constants.IMAGE);\n }\n\n /**\n * @param {MediaInfo} t1 - first track to compare\n * @param {MediaInfo} t2 - second track to compare\n * @returns {boolean}\n * @memberof MediaController#\n */\n function isTracksEqual(t1, t2) {\n if (!t1 && !t2) {\n return true;\n }\n\n if (!t1 || !t2) {\n return false;\n }\n\n const sameId = t1.id === t2.id;\n const sameViewpoint = t1.viewpoint === t2.viewpoint;\n const sameLang = t1.lang === t2.lang;\n const sameRoles = t1.roles.toString() === t2.roles.toString();\n const sameAccessibility = t1.accessibility.toString() === t2.accessibility.toString();\n const sameAudioChannelConfiguration = t1.audioChannelConfiguration.toString() === t2.audioChannelConfiguration.toString();\n\n return (sameId && sameViewpoint && sameLang && sameRoles && sameAccessibility && sameAudioChannelConfiguration);\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.domStorage) {\n domStorage = config.domStorage;\n }\n\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n /**\n * @memberof MediaController#\n */\n function reset() {\n tracks = {};\n resetInitialSettings();\n }\n\n function extractSettings(mediaInfo) {\n const settings = {\n lang: mediaInfo.lang,\n viewpoint: mediaInfo.viewpoint,\n roles: mediaInfo.roles,\n accessibility: mediaInfo.accessibility,\n audioChannelConfiguration: mediaInfo.audioChannelConfiguration\n };\n let notEmpty = settings.lang || settings.viewpoint || (settings.role && settings.role.length > 0) ||\n (settings.accessibility && settings.accessibility.length > 0) || (settings.audioChannelConfiguration && settings.audioChannelConfiguration.length > 0);\n\n return notEmpty ? settings : null;\n }\n\n function matchSettings(settings, track) {\n const matchLang = !settings.lang || (track.lang.match(settings.lang));\n const matchIndex = (settings.index === undefined) || (settings.index === null) || (track.index === settings.index);\n const matchViewPoint = !settings.viewpoint || (settings.viewpoint === track.viewpoint);\n const matchRole = !settings.role || !!track.roles.filter(function (item) {\n return item === settings.role;\n })[0];\n let matchAccessibility = !settings.accessibility || !!track.accessibility.filter(function (item) {\n return item === settings.accessibility;\n })[0];\n let matchAudioChannelConfiguration = !settings.audioChannelConfiguration || !!track.audioChannelConfiguration.filter(function (item) {\n return item === settings.audioChannelConfiguration;\n })[0];\n\n return (matchLang && matchIndex && matchViewPoint && matchRole && matchAccessibility && matchAudioChannelConfiguration);\n }\n\n function resetInitialSettings() {\n initialSettings = {\n audio: null,\n video: null,\n fragmentedText: null\n };\n }\n\n function getTracksWithHighestBitrate (trackArr) {\n let max = 0;\n let result = [];\n let tmp;\n\n trackArr.forEach(function (track) {\n tmp = Math.max.apply(Math, track.bitrateList.map(function (obj) { return obj.bandwidth; }));\n\n if (tmp > max) {\n max = tmp;\n result = [track];\n } else if (tmp === max) {\n result.push(track);\n }\n });\n\n return result;\n }\n\n function getTracksWithHighestEfficiency (trackArr) {\n let min = Infinity;\n let result = [];\n let tmp;\n\n trackArr.forEach(function (track) {\n const sum = track.bitrateList.reduce(function (acc, obj) {\n const resolution = Math.max(1, obj.width * obj.height);\n const efficiency = obj.bandwidth / resolution;\n return acc + efficiency;\n }, 0);\n tmp = sum / track.bitrateList.length;\n\n if (tmp < min) {\n min = tmp;\n result = [track];\n } else if (tmp === min) {\n result.push(track);\n }\n });\n\n return result;\n }\n\n function getTracksWithWidestRange (trackArr) {\n let max = 0;\n let result = [];\n let tmp;\n\n trackArr.forEach(function (track) {\n tmp = track.representationCount;\n\n if (tmp > max) {\n max = tmp;\n result = [track];\n } else if (tmp === max) {\n result.push(track);\n }\n });\n\n return result;\n }\n\n function selectInitialTrack(type, tracks) {\n if (type === Constants.FRAGMENTED_TEXT) return tracks[0];\n\n let mode = getSelectionModeForInitialTrack();\n let tmpArr = [];\n\n switch (mode) {\n case Constants.TRACK_SELECTION_MODE_HIGHEST_BITRATE:\n tmpArr = getTracksWithHighestBitrate(tracks);\n\n if (tmpArr.length > 1) {\n tmpArr = getTracksWithWidestRange(tmpArr);\n }\n break;\n case Constants.TRACK_SELECTION_MODE_HIGHEST_EFFICIENCY:\n tmpArr = getTracksWithHighestEfficiency(tracks);\n\n if (tmpArr.length > 1) {\n tmpArr = getTracksWithHighestBitrate(tmpArr);\n }\n break;\n case Constants.TRACK_SELECTION_MODE_WIDEST_RANGE:\n tmpArr = getTracksWithWidestRange(tracks);\n\n if (tmpArr.length > 1) {\n tmpArr = getTracksWithHighestBitrate(tracks);\n }\n break;\n default:\n logger.warn('Track selection mode is not supported: ' + mode);\n break;\n }\n\n return tmpArr[0];\n }\n\n function createTrackInfo() {\n return {\n audio: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n video: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n text: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n fragmentedText: {\n list: [],\n storeLastSettings: true,\n current: null\n },\n image: {\n list: [],\n storeLastSettings: true,\n current: null\n }\n };\n }\n\n instance = {\n checkInitialMediaSettingsForType: checkInitialMediaSettingsForType,\n addTrack: addTrack,\n getTracksFor: getTracksFor,\n getCurrentTrackFor: getCurrentTrackFor,\n isCurrentTrack: isCurrentTrack,\n setTrack: setTrack,\n setInitialSettings: setInitialSettings,\n getInitialSettings: getInitialSettings,\n setSwitchMode: setSwitchMode,\n getSwitchMode: getSwitchMode,\n selectInitialTrack: selectInitialTrack,\n getTracksWithHighestBitrate: getTracksWithHighestBitrate,\n getTracksWithHighestEfficiency: getTracksWithHighestEfficiency,\n getTracksWithWidestRange: getTracksWithWidestRange,\n setSelectionModeForInitialTrack: setSelectionModeForInitialTrack,\n getSelectionModeForInitialTrack: getSelectionModeForInitialTrack,\n isMultiTrackSupportedByType: isMultiTrackSupportedByType,\n isTracksEqual: isTracksEqual,\n matchSettings: matchSettings,\n saveTextSettingsDisabled: saveTextSettingsDisabled,\n setConfig: setConfig,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nMediaController.__dashjs_factory_name = 'MediaController';\nconst factory = FactoryMaker.getSingletonFactory(MediaController);\nFactoryMaker.updateSingletonFactory(MediaController.__dashjs_factory_name, factory);\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nfunction MediaSourceController() {\n\n let instance,\n logger;\n\n const context = this.context;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function createMediaSource() {\n\n let hasWebKit = ('WebKitMediaSource' in window);\n let hasMediaSource = ('MediaSource' in window);\n\n if (hasMediaSource) {\n return new MediaSource();\n } else if (hasWebKit) {\n return new WebKitMediaSource();\n }\n\n return null;\n }\n\n function attachMediaSource(source, videoModel) {\n\n let objectURL = window.URL.createObjectURL(source);\n\n videoModel.setSource(objectURL);\n\n return objectURL;\n }\n\n function detachMediaSource(videoModel) {\n videoModel.setSource(null);\n }\n\n function setDuration(source, value) {\n if (!source || source.readyState !== 'open') return;\n if (value === null && isNaN(value)) return;\n if (source.duration === value) return;\n\n if (!isBufferUpdating(source)) {\n logger.info('Set MediaSource duration:' + value);\n source.duration = value;\n } else {\n setTimeout(setDuration.bind(null, source, value), 50);\n }\n }\n\n function setSeekable(source, start, end) {\n if (source && typeof source.setLiveSeekableRange === 'function' && typeof source.clearLiveSeekableRange === 'function' &&\n source.readyState === 'open' && start >= 0 && start < end) {\n source.clearLiveSeekableRange();\n source.setLiveSeekableRange(start, end);\n }\n }\n\n function signalEndOfStream(source) {\n if (!source || source.readyState !== 'open') {\n return;\n }\n\n let buffers = source.sourceBuffers;\n\n for (let i = 0; i < buffers.length; i++) {\n if (buffers[i].updating) {\n return;\n }\n if (buffers[i].buffered.length === 0) {\n return;\n }\n }\n logger.info('call to mediaSource endOfStream');\n source.endOfStream();\n }\n\n function isBufferUpdating(source) {\n let buffers = source.sourceBuffers;\n for (let i = 0; i < buffers.length; i++) {\n if (buffers[i].updating) {\n return true;\n }\n }\n return false;\n }\n\n instance = {\n createMediaSource: createMediaSource,\n attachMediaSource: attachMediaSource,\n detachMediaSource: detachMediaSource,\n setDuration: setDuration,\n setSeekable: setSeekable,\n signalEndOfStream: signalEndOfStream\n };\n\n setup();\n\n return instance;\n}\n\nMediaSourceController.__dashjs_factory_name = 'MediaSourceController';\nexport default FactoryMaker.getSingletonFactory(MediaSourceController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nconst LIVE_UPDATE_PLAYBACK_TIME_INTERVAL_MS = 500;\n\nfunction PlaybackController() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n streamController,\n dashMetrics,\n adapter,\n videoModel,\n timelineConverter,\n streamSwitch,\n streamSeekTime,\n wallclockTimeIntervalId,\n liveDelay,\n streamInfo,\n isDynamic,\n mediaPlayerModel,\n playOnceInitialized,\n lastLivePlaybackTime,\n availabilityStartTime,\n seekTarget,\n isLowLatencySeekingInProgress,\n playbackStalled,\n minPlaybackRateChange,\n uriFragmentModel,\n settings;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n\n reset();\n }\n\n function initialize(sInfo, periodSwitch, seekTime) {\n streamInfo = sInfo;\n addAllListeners();\n isDynamic = streamInfo.manifestInfo.isDynamic;\n isLowLatencySeekingInProgress = false;\n playbackStalled = false;\n streamSwitch = periodSwitch === true;\n streamSeekTime = seekTime;\n\n const ua = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase() : '';\n\n // Detect safari browser (special behavior for low latency streams)\n const isSafari = /safari/.test(ua) && !/chrome/.test(ua);\n minPlaybackRateChange = isSafari ? 0.25 : 0.02;\n\n eventBus.on(Events.STREAM_INITIALIZED, onStreamInitialized, this);\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, this);\n eventBus.on(Events.LOADING_PROGRESS, onFragmentLoadProgress, this);\n eventBus.on(Events.BUFFER_LEVEL_STATE_CHANGED, onBufferLevelStateChanged, this);\n eventBus.on(Events.PLAYBACK_PROGRESS, onPlaybackProgression, this);\n eventBus.on(Events.PLAYBACK_TIME_UPDATED, onPlaybackProgression, this);\n eventBus.on(Events.PLAYBACK_ENDED, onPlaybackEnded, this, { priority: EventBus.EVENT_PRIORITY_HIGH });\n eventBus.on(Events.STREAM_INITIALIZING, onStreamInitializing, this);\n\n if (playOnceInitialized) {\n playOnceInitialized = false;\n play();\n }\n }\n\n function onStreamInitialized(e) {\n // Seamless period switch\n if (streamSwitch && isNaN(streamSeekTime)) return;\n\n // Seek new stream in priority order:\n // - at seek time (streamSeekTime) when switching period\n // - at start time provided in URI parameters\n // - at stream/period start time (for static streams) or live start time (for dynamic streams)\n let startTime = streamSeekTime;\n if (isNaN(startTime)) {\n if (isDynamic) {\n // For dynamic stream, start by default at (live edge - live delay)\n startTime = e.liveStartTime;\n // If start time in URI, take min value between live edge time and time from URI (capped by DVR window range)\n const dvrInfo = dashMetrics.getCurrentDVRInfo();\n const dvrWindow = dvrInfo ? dvrInfo.range : null;\n if (dvrWindow) {\n // #t shall be relative to period start\n const startTimeFromUri = getStartTimeFromUriParameters(true);\n if (!isNaN(startTimeFromUri)) {\n logger.info('Start time from URI parameters: ' + startTimeFromUri);\n startTime = Math.max(Math.min(startTime, startTimeFromUri), dvrWindow.start);\n }\n }\n } else {\n // For static stream, start by default at period start\n startTime = streamInfo.start;\n // If start time in URI, take max value between period start and time from URI (if in period range)\n const startTimeFromUri = getStartTimeFromUriParameters(false);\n if (!isNaN(startTimeFromUri) && startTimeFromUri < (startTime + streamInfo.duration)) {\n logger.info('Start time from URI parameters: ' + startTimeFromUri);\n startTime = Math.max(startTime, startTimeFromUri);\n }\n }\n }\n\n if (!isNaN(startTime) && startTime !== videoModel.getTime()) {\n // Trigger PLAYBACK_SEEKING event for controllers\n eventBus.trigger(Events.PLAYBACK_SEEKING, { seekTime: startTime });\n // Seek video model\n seek(startTime, false, true);\n }\n }\n\n function getTimeToStreamEnd() {\n return parseFloat((getStreamEndTime() - getTime()).toFixed(5));\n }\n\n function getStreamEndTime() {\n return streamInfo.start + streamInfo.duration;\n }\n\n function play() {\n if (streamInfo && videoModel && videoModel.getElement()) {\n videoModel.play();\n } else {\n playOnceInitialized = true;\n }\n }\n\n function isPaused() {\n return streamInfo && videoModel ? videoModel.isPaused() : null;\n }\n\n function pause() {\n if (streamInfo && videoModel) {\n videoModel.pause();\n }\n }\n\n function isSeeking() {\n return streamInfo && videoModel ? videoModel.isSeeking() : null;\n }\n\n function seek(time, stickToBuffered, internalSeek) {\n if (!streamInfo || !videoModel) return;\n\n let currentTime = !isNaN(seekTarget) ? seekTarget : videoModel.getTime();\n if (time === currentTime) return;\n\n if (internalSeek === true) {\n // Internal seek = seek video model only (disable 'seeking' listener)\n // buffer(s) are already appended at requested time\n videoModel.removeEventListener('seeking', onPlaybackSeeking);\n logger.info('Requesting internal seek to time: ' + time);\n videoModel.setCurrentTime(time, stickToBuffered);\n } else {\n seekTarget = time;\n eventBus.trigger(Events.PLAYBACK_SEEK_ASKED);\n logger.info('Requesting seek to time: ' + time);\n videoModel.setCurrentTime(time, stickToBuffered);\n }\n }\n\n function seekToLive() {\n const DVRMetrics = dashMetrics.getCurrentDVRInfo();\n const DVRWindow = DVRMetrics ? DVRMetrics.range : null;\n\n seek(DVRWindow.end - mediaPlayerModel.getLiveDelay(), true, false);\n }\n\n function getTime() {\n return streamInfo && videoModel ? videoModel.getTime() : null;\n }\n\n function getNormalizedTime() {\n let t = getTime();\n\n if (isDynamic && !isNaN(availabilityStartTime)) {\n const timeOffset = availabilityStartTime / 1000;\n // Fix current time for firefox and safari (returned as an absolute time)\n if (t > timeOffset) {\n t -= timeOffset;\n }\n }\n return t;\n }\n\n function getPlaybackRate() {\n return streamInfo && videoModel ? videoModel.getPlaybackRate() : null;\n }\n\n function getPlayedRanges() {\n return streamInfo && videoModel ? videoModel.getPlayedRanges() : null;\n }\n\n function getEnded() {\n return streamInfo && videoModel ? videoModel.getEnded() : null;\n }\n\n function getIsDynamic() {\n return isDynamic;\n }\n\n function getStreamController() {\n return streamController;\n }\n\n /**\n * Computes the desirable delay for the live edge to avoid a risk of getting 404 when playing at the bleeding edge\n * @param {number} fragmentDuration - seconds?\n * @param {number} dvrWindowSize - seconds?\n * @param {number} minBufferTime - seconds?\n * @returns {number} object\n * @memberof PlaybackController#\n */\n function computeAndSetLiveDelay(fragmentDuration, dvrWindowSize, minBufferTime) {\n let delay,\n ret,\n startTime;\n const END_OF_PLAYLIST_PADDING = 10;\n const MIN_BUFFER_TIME_FACTOR = 4;\n const FRAGMENT_DURATION_FACTOR = 4;\n const adjustedFragmentDuration = !isNaN(fragmentDuration) && isFinite(fragmentDuration) ? fragmentDuration : NaN;\n\n let suggestedPresentationDelay = adapter.getSuggestedPresentationDelay();\n\n if (settings.get().streaming.lowLatencyEnabled) {\n delay = 0;\n } else if (mediaPlayerModel.getLiveDelay()) {\n delay = mediaPlayerModel.getLiveDelay(); // If set by user, this value takes precedence\n } else if (settings.get().streaming.liveDelayFragmentCount !== null && !isNaN(settings.get().streaming.liveDelayFragmentCount) && !isNaN(adjustedFragmentDuration)) {\n delay = adjustedFragmentDuration * settings.get().streaming.liveDelayFragmentCount;\n } else if (settings.get().streaming.useSuggestedPresentationDelay === true && suggestedPresentationDelay !== null && !isNaN(suggestedPresentationDelay) && suggestedPresentationDelay > 0) {\n delay = suggestedPresentationDelay;\n } else if (!isNaN(adjustedFragmentDuration)) {\n delay = adjustedFragmentDuration * FRAGMENT_DURATION_FACTOR;\n } else {\n delay = !isNaN(minBufferTime) ? minBufferTime * MIN_BUFFER_TIME_FACTOR : streamInfo.manifestInfo.minBufferTime * MIN_BUFFER_TIME_FACTOR;\n }\n\n startTime = adapter.getAvailabilityStartTime();\n\n if (startTime !== null) {\n availabilityStartTime = startTime;\n }\n\n if (dvrWindowSize > 0) {\n // cap target latency to:\n // - dvrWindowSize / 2 for short playlists\n // - dvrWindowSize - END_OF_PLAYLIST_PADDING for longer playlists\n const targetDelayCapping = Math.max(dvrWindowSize - END_OF_PLAYLIST_PADDING, dvrWindowSize / 2);\n ret = Math.min(delay, targetDelayCapping);\n } else {\n ret = delay;\n }\n liveDelay = ret;\n return ret;\n }\n\n function getLiveDelay() {\n return liveDelay;\n }\n\n function setLiveDelay(value, useMaxValue = false) {\n if (useMaxValue && value < liveDelay) {\n return;\n }\n\n liveDelay = value;\n }\n\n function getCurrentLiveLatency() {\n if (!isDynamic || isNaN(availabilityStartTime)) {\n return NaN;\n }\n let currentTime = getNormalizedTime();\n if (isNaN(currentTime) || currentTime === 0) {\n return 0;\n }\n\n const now = new Date().getTime() + timelineConverter.getClientTimeOffset() * 1000;\n return Math.max(((now - availabilityStartTime - currentTime * 1000) / 1000).toFixed(3), 0);\n }\n\n function reset() {\n playOnceInitialized = false;\n streamSwitch = false;\n streamSeekTime = NaN;\n liveDelay = 0;\n availabilityStartTime = 0;\n seekTarget = NaN;\n if (videoModel) {\n eventBus.off(Events.STREAM_INITIALIZED, onStreamInitialized, this);\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, this);\n eventBus.off(Events.BUFFER_LEVEL_STATE_CHANGED, onBufferLevelStateChanged, this);\n eventBus.off(Events.LOADING_PROGRESS, onFragmentLoadProgress, this);\n eventBus.off(Events.PLAYBACK_PROGRESS, onPlaybackProgression, this);\n eventBus.off(Events.PLAYBACK_TIME_UPDATED, onPlaybackProgression, this);\n eventBus.off(Events.PLAYBACK_ENDED, onPlaybackEnded, this);\n eventBus.off(Events.STREAM_INITIALIZING, onStreamInitializing, this);\n stopUpdatingWallclockTime();\n removeAllListeners();\n }\n wallclockTimeIntervalId = null;\n videoModel = null;\n streamInfo = null;\n isDynamic = null;\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n if (config.mediaPlayerModel) {\n mediaPlayerModel = config.mediaPlayerModel;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.timelineConverter) {\n timelineConverter = config.timelineConverter;\n }\n if (config.uriFragmentModel) {\n uriFragmentModel = config.uriFragmentModel;\n }\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n function getStartTimeFromUriParameters(isDynamic) {\n const fragData = uriFragmentModel.getURIFragmentData();\n if (!fragData || !fragData.t) {\n return NaN;\n }\n const refStream = streamController.getStreams()[0];\n const refStreamStartTime = refStream.getStreamInfo().start;\n // Consider only start time of MediaRange\n // TODO: consider end time of MediaRange to stop playback at provided end time\n fragData.t = fragData.t.split(',')[0];\n // \"t=\" : time is relative to 1st period start\n // \"t=posix:\" : time is absolute start time as number of seconds since 01-01-1970\n const posix = fragData.t.indexOf('posix:') !== -1 ? fragData.t.substring(6) === 'now' ? Date.now() / 1000 : parseInt(fragData.t.substring(6)) : NaN;\n let startTime = (isDynamic && !isNaN(posix)) ? posix - availabilityStartTime / 1000 : parseInt(fragData.t) + refStreamStartTime;\n return startTime;\n }\n\n function getActualPresentationTime(currentTime) {\n const DVRMetrics = dashMetrics.getCurrentDVRInfo();\n const DVRWindow = DVRMetrics ? DVRMetrics.range : null;\n let actualTime;\n\n if (!DVRWindow) {\n return NaN;\n }\n\n logger.debug(`Checking DVR window for at ${currentTime} with DVR window range ${DVRWindow.start} - ${DVRWindow.end}`);\n if (currentTime > DVRWindow.end) {\n actualTime = Math.max(DVRWindow.end - liveDelay, DVRWindow.start);\n\n } else if (currentTime > 0 && currentTime + 0.250 < DVRWindow.start && Math.abs(currentTime - DVRWindow.start) < 315360000) {\n\n // Checking currentTime plus 250ms as the 'timeupdate' is fired with a frequency between 4Hz and 66Hz\n // https://developer.mozilla.org/en-US/docs/Web/Events/timeupdate\n // http://w3c.github.io/html/single-page.html#offsets-into-the-media-resource\n // Checking also duration of the DVR makes sense. We detected temporary situations in which currentTime\n // is bad reported by the browser which causes playback to jump to start (315360000 = 1 year)\n //actualTime = DVRWindow.start;\n actualTime = DVRWindow.start;\n } else {\n actualTime = currentTime;\n }\n\n return actualTime;\n }\n\n function startUpdatingWallclockTime() {\n if (wallclockTimeIntervalId !== null) return;\n\n const tick = function () {\n onWallclockTime();\n };\n\n wallclockTimeIntervalId = setInterval(tick, settings.get().streaming.wallclockTimeUpdateInterval);\n }\n\n function stopUpdatingWallclockTime() {\n clearInterval(wallclockTimeIntervalId);\n wallclockTimeIntervalId = null;\n }\n\n function updateCurrentTime() {\n if (isPaused() || !isDynamic || videoModel.getReadyState() === 0) return;\n const currentTime = getNormalizedTime();\n const actualTime = getActualPresentationTime(currentTime);\n const timeChanged = (!isNaN(actualTime) && actualTime !== currentTime);\n if (timeChanged) {\n logger.debug(`UpdateCurrentTime: Seek to actual time: ${actualTime} from currentTime: ${currentTime}`);\n seek(actualTime);\n }\n }\n\n function onDataUpdateCompleted(e) {\n if (e.error) return;\n\n const representationInfo = adapter.convertDataToRepresentationInfo(e.currentRepresentation);\n const info = representationInfo ? representationInfo.mediaInfo.streamInfo : null;\n\n if (info === null || streamInfo.id !== info.id) return;\n streamInfo = info;\n\n updateCurrentTime();\n }\n\n function onCanPlay() {\n eventBus.trigger(Events.CAN_PLAY);\n }\n\n function onPlaybackStart() {\n logger.info('Native video element event: play');\n updateCurrentTime();\n startUpdatingWallclockTime();\n eventBus.trigger(Events.PLAYBACK_STARTED, { startTime: getTime() });\n }\n\n function onPlaybackWaiting() {\n logger.info('Native video element event: waiting');\n eventBus.trigger(Events.PLAYBACK_WAITING, { playingTime: getTime() });\n }\n\n function onPlaybackPlaying() {\n logger.info('Native video element event: playing');\n eventBus.trigger(Events.PLAYBACK_PLAYING, { playingTime: getTime() });\n }\n\n function onPlaybackPaused() {\n logger.info('Native video element event: pause');\n eventBus.trigger(Events.PLAYBACK_PAUSED, { ended: getEnded() });\n }\n\n function onPlaybackSeeking() {\n let seekTime = getTime();\n // On some browsers/devices, in case of live streams, setting current time on video element fails when there is no buffered data at requested time\n // Then re-set seek target time and video element will be seeked afterwhile once data is buffered (see BufferContoller)\n if (!isNaN(seekTarget) && seekTarget !== seekTime) {\n seekTime = seekTarget;\n }\n seekTarget = NaN;\n\n logger.info('Seeking to: ' + seekTime);\n startUpdatingWallclockTime();\n eventBus.trigger(Events.PLAYBACK_SEEKING, { seekTime: seekTime });\n }\n\n function onPlaybackSeeked() {\n logger.info('Native video element event: seeked');\n eventBus.trigger(Events.PLAYBACK_SEEKED);\n // Reactivate 'seeking' event listener (see seek())\n videoModel.addEventListener('seeking', onPlaybackSeeking);\n }\n\n function onPlaybackTimeUpdated() {\n if (streamInfo) {\n eventBus.trigger(Events.PLAYBACK_TIME_UPDATED, {\n timeToEnd: getTimeToStreamEnd(),\n time: getTime()\n });\n }\n }\n\n function updateLivePlaybackTime() {\n const now = Date.now();\n if (!lastLivePlaybackTime || now > lastLivePlaybackTime + LIVE_UPDATE_PLAYBACK_TIME_INTERVAL_MS) {\n lastLivePlaybackTime = now;\n onPlaybackTimeUpdated();\n }\n }\n\n function onPlaybackProgress() {\n eventBus.trigger(Events.PLAYBACK_PROGRESS);\n }\n\n function onPlaybackRateChanged() {\n const rate = getPlaybackRate();\n logger.info('Native video element event: ratechange: ', rate);\n eventBus.trigger(Events.PLAYBACK_RATE_CHANGED, { playbackRate: rate });\n }\n\n function onPlaybackMetaDataLoaded() {\n logger.info('Native video element event: loadedmetadata');\n eventBus.trigger(Events.PLAYBACK_METADATA_LOADED);\n startUpdatingWallclockTime();\n }\n\n // Event to handle the native video element ended event\n function onNativePlaybackEnded() {\n logger.info('Native video element event: ended');\n pause();\n stopUpdatingWallclockTime();\n eventBus.trigger(Events.PLAYBACK_ENDED, { 'isLast': streamController.getActiveStreamInfo().isLast });\n }\n\n // Handle DASH PLAYBACK_ENDED event\n function onPlaybackEnded(e) {\n if (wallclockTimeIntervalId && e.isLast) {\n // PLAYBACK_ENDED was triggered elsewhere, react.\n logger.info('onPlaybackEnded -- PLAYBACK_ENDED but native video element didn\\'t fire ended');\n const seekTime = e.seekTime ? e.seekTime : getStreamEndTime();\n videoModel.setCurrentTime(seekTime);\n pause();\n stopUpdatingWallclockTime();\n }\n }\n\n function onPlaybackError(event) {\n const target = event.target || event.srcElement;\n eventBus.trigger(Events.PLAYBACK_ERROR, { error: target.error });\n }\n\n function onWallclockTime() {\n eventBus.trigger(Events.WALLCLOCK_TIME_UPDATED, {\n isDynamic: isDynamic,\n time: new Date()\n });\n\n // Updates playback time for paused dynamic streams\n // (video element doesn't call timeupdate when the playback is paused)\n if (getIsDynamic() && isPaused()) {\n updateLivePlaybackTime();\n }\n }\n\n function onPlaybackProgression() {\n if (\n isDynamic &&\n _isCatchupEnabled() &&\n settings.get().streaming.liveCatchup.playbackRate > 0 &&\n !isPaused() &&\n !isSeeking()\n ) {\n if (_needToCatchUp()) {\n startPlaybackCatchUp();\n } else {\n stopPlaybackCatchUp();\n }\n }\n }\n\n function _isCatchupEnabled() {\n return settings.get().streaming.liveCatchup.enabled || settings.get().streaming.lowLatencyEnabled;\n }\n\n function getBufferLevel() {\n let bufferLevel = null;\n streamController.getActiveStreamProcessors().forEach(p => {\n const bl = p.getBufferLevel();\n if (bufferLevel === null) {\n bufferLevel = bl;\n } else {\n bufferLevel = Math.min(bufferLevel, bl);\n }\n });\n\n return bufferLevel;\n }\n\n /**\n * Returns the mode for live playback catchup.\n * @return {String}\n * @private\n */\n function _getCatchupMode() {\n const playbackBufferMin = settings.get().streaming.liveCatchup.playbackBufferMin;\n\n return settings.get().streaming.liveCatchup.mode === Constants.LIVE_CATCHUP_MODE_LOLP && playbackBufferMin !== null && !isNaN(playbackBufferMin) ? Constants.LIVE_CATCHUP_MODE_LOLP : Constants.LIVE_CATCHUP_MODE_DEFAULT;\n }\n\n /**\n * Checks whether the catchup mechanism should be enabled\n * @return {boolean}\n */\n function _needToCatchUp() {\n try {\n if (_isCatchupEnabled() && settings.get().streaming.liveCatchup.playbackRate > 0 && getTime() > 0) {\n\n const catchupMode = _getCatchupMode();\n const currentLiveLatency = getCurrentLiveLatency();\n const liveDelay = mediaPlayerModel.getLiveDelay();\n const liveCatchupLatencyThreshold = mediaPlayerModel.getLiveCatchupLatencyThreshold();\n const liveCatchUpMinDrift = settings.get().streaming.liveCatchup.minDrift;\n\n if (catchupMode === Constants.LIVE_CATCHUP_MODE_LOLP) {\n const currentBuffer = getBufferLevel();\n const playbackBufferMin = settings.get().streaming.liveCatchup.playbackBufferMin;\n\n return _lolpNeedToCatchUpCustom(currentLiveLatency, liveDelay, liveCatchUpMinDrift, currentBuffer, playbackBufferMin, liveCatchupLatencyThreshold);\n } else {\n return _defaultNeedToCatchUp(currentLiveLatency, liveDelay, liveCatchupLatencyThreshold, liveCatchUpMinDrift);\n }\n }\n } catch (e) {\n return false;\n }\n }\n\n /**\n * Default algorithm to determine if catchup mode should be enabled\n * @param {number} currentLiveLatency\n * @param {number} liveDelay\n * @param {number} liveCatchupLatencyThreshold\n * @param {number} minDrift\n * @return {boolean}\n * @private\n */\n function _defaultNeedToCatchUp(currentLiveLatency, liveDelay, liveCatchupLatencyThreshold, minDrift) {\n try {\n const latencyDrift = Math.abs(currentLiveLatency - liveDelay);\n\n return latencyDrift > minDrift && (isNaN(liveCatchupLatencyThreshold) || currentLiveLatency <= liveCatchupLatencyThreshold);\n } catch (e) {\n return false;\n }\n }\n\n /**\n * LoL+ logic to determine if catchup mode should be enabled\n * @param {number} currentLiveLatency\n * @param {number} liveDelay\n * @param {number} minDrift\n * @param {number} currentBuffer\n * @param {number} playbackBufferMin\n * @param {number} liveCatchupLatencyThreshold\n * @return {boolean}\n * @private\n */\n function _lolpNeedToCatchUpCustom(currentLiveLatency, liveDelay, minDrift, currentBuffer, playbackBufferMin, liveCatchupLatencyThreshold) {\n try {\n const latencyDrift = Math.abs(currentLiveLatency - liveDelay);\n\n return (isNaN(liveCatchupLatencyThreshold) || currentLiveLatency <= liveCatchupLatencyThreshold) && (latencyDrift > minDrift || currentBuffer < playbackBufferMin);\n } catch (e) {\n return false;\n }\n }\n\n /**\n * Apply catchup mode\n */\n function startPlaybackCatchUp() {\n if (videoModel) {\n let results;\n const currentPlaybackRate = videoModel.getPlaybackRate();\n const liveCatchupPlaybackRate = settings.get().streaming.liveCatchup.playbackRate;\n const currentLiveLatency = getCurrentLiveLatency();\n const liveDelay = mediaPlayerModel.getLiveDelay();\n const bufferLevel = getBufferLevel();\n // Custom playback control: Based on buffer level\n if (_getCatchupMode() === Constants.LIVE_CATCHUP_MODE_LOLP) {\n const liveCatchUpMinDrift = settings.get().streaming.liveCatchup.minDrift;\n const playbackBufferMin = settings.get().streaming.liveCatchup.playbackBufferMin;\n results = _calculateNewPlaybackRateLolP(liveCatchupPlaybackRate, currentLiveLatency, liveDelay, liveCatchUpMinDrift, playbackBufferMin, bufferLevel, currentPlaybackRate);\n } else {\n // Default playback control: Based on target and current latency\n results = _calculateNewPlaybackRateDefault(liveCatchupPlaybackRate, currentLiveLatency, liveDelay, bufferLevel, currentPlaybackRate);\n }\n\n // Obtain newRate and apply to video model\n let newRate = results.newRate;\n if (newRate) { // non-null\n videoModel.setPlaybackRate(newRate);\n }\n\n const deltaLatency = currentLiveLatency - liveDelay;\n if (settings.get().streaming.liveCatchup.maxDrift > 0 && !isLowLatencySeekingInProgress &&\n deltaLatency > settings.get().streaming.liveCatchup.maxDrift) {\n logger.info('Low Latency catchup mechanism. Latency too high, doing a seek to live point');\n isLowLatencySeekingInProgress = true;\n seekToLive();\n } else {\n isLowLatencySeekingInProgress = false;\n }\n }\n }\n\n /**\n * Default algorithm to calculate the new playback rate\n * @param {number} liveCatchUpPlaybackRate\n * @param {number} currentLiveLatency\n * @param {number} liveDelay\n * @param {number} bufferLevel\n * @param {number} currentPlaybackRate\n * @return {{newRate: number}}\n * @private\n */\n function _calculateNewPlaybackRateDefault(liveCatchUpPlaybackRate, currentLiveLatency, liveDelay, bufferLevel, currentPlaybackRate) {\n const cpr = liveCatchUpPlaybackRate;\n const deltaLatency = currentLiveLatency - liveDelay;\n const d = deltaLatency * 5;\n\n // Playback rate must be between (1 - cpr) - (1 + cpr)\n // ex: if cpr is 0.5, it can have values between 0.5 - 1.5\n const s = (cpr * 2) / (1 + Math.pow(Math.E, -d));\n let newRate = (1 - cpr) + s;\n // take into account situations in which there are buffer stalls,\n // in which increasing playbackRate to reach target latency will\n // just cause more and more stall situations\n if (playbackStalled) {\n // const bufferLevel = getBufferLevel();\n if (bufferLevel > liveDelay / 2) {\n // playbackStalled = false;\n playbackStalled = false;\n } else if (deltaLatency > 0) {\n newRate = 1.0;\n }\n }\n\n // don't change playbackrate for small variations (don't overload element with playbackrate changes)\n if (Math.abs(currentPlaybackRate - newRate) <= minPlaybackRateChange) {\n newRate = null;\n }\n\n return {\n newRate: newRate\n };\n\n }\n\n /**\n * Lol+ algorithm to calculate the new playback rate\n * @param {number} liveCatchUpPlaybackRate\n * @param {number} currentLiveLatency\n * @param {number} liveDelay\n * @param {number} minDrift\n * @param {number} playbackBufferMin\n * @param {number} bufferLevel\n * @param {number} currentPlaybackRate\n * @return {{newRate: number}}\n * @private\n */\n function _calculateNewPlaybackRateLolP(liveCatchUpPlaybackRate, currentLiveLatency, liveDelay, minDrift, playbackBufferMin, bufferLevel, currentPlaybackRate) {\n const cpr = liveCatchUpPlaybackRate;\n let newRate;\n\n // Hybrid: Buffer-based\n if (bufferLevel < playbackBufferMin) {\n // Buffer in danger, slow down\n const deltaBuffer = bufferLevel - playbackBufferMin; // -ve value\n const d = deltaBuffer * 5;\n\n // Playback rate must be between (1 - cpr) - (1 + cpr)\n // ex: if cpr is 0.5, it can have values between 0.5 - 1.5\n const s = (cpr * 2) / (1 + Math.pow(Math.E, -d));\n newRate = (1 - cpr) + s;\n\n logger.debug('[LoL+ playback control_buffer-based] bufferLevel: ' + bufferLevel + ', newRate: ' + newRate);\n } else {\n // Hybrid: Latency-based\n // Buffer is safe, vary playback rate based on latency\n\n // Check if latency is within range of target latency\n const minDifference = 0.02;\n if (Math.abs(currentLiveLatency - liveDelay) <= (minDifference * liveDelay)) {\n newRate = 1;\n } else {\n const deltaLatency = currentLiveLatency - liveDelay;\n const d = deltaLatency * 5;\n\n // Playback rate must be between (1 - cpr) - (1 + cpr)\n // ex: if cpr is 0.5, it can have values between 0.5 - 1.5\n const s = (cpr * 2) / (1 + Math.pow(Math.E, -d));\n newRate = (1 - cpr) + s;\n }\n\n logger.debug('[LoL+ playback control_latency-based] latency: ' + currentLiveLatency + ', newRate: ' + newRate);\n }\n\n if (playbackStalled) {\n if (bufferLevel > liveDelay / 2) {\n playbackStalled = false;\n }\n }\n\n // don't change playbackrate for small variations (don't overload element with playbackrate changes)\n if (Math.abs(currentPlaybackRate - newRate) <= minPlaybackRateChange) {\n newRate = null;\n }\n\n return {\n newRate: newRate\n };\n }\n\n function stopPlaybackCatchUp() {\n if (videoModel) {\n videoModel.setPlaybackRate(1.0);\n }\n }\n\n function onFragmentLoadProgress(e) {\n // If using fetch and stream mode is not available, readjust live latency so it is 20% higher than segment duration\n if (e.stream === false && settings.get().streaming.lowLatencyEnabled && !isNaN(e.request.duration)) {\n const minDelay = 1.2 * e.request.duration;\n if (minDelay > mediaPlayerModel.getLiveDelay()) {\n logger.warn('Browser does not support fetch API with StreamReader. Increasing live delay to be 20% higher than segment duration:', minDelay.toFixed(2));\n const s = { streaming: { liveDelay: minDelay } };\n settings.update(s);\n }\n }\n }\n\n function onBufferLevelStateChanged(e) {\n // do not stall playback when get an event from Stream that is not active\n if (e.streamId !== streamInfo.id) return;\n\n if (_isCatchupEnabled()) {\n if (e.state === MetricsConstants.BUFFER_EMPTY && !isSeeking()) {\n if (!playbackStalled) {\n playbackStalled = true;\n stopPlaybackCatchUp();\n }\n }\n } else {\n videoModel.setStallState(e.mediaType, e.state === MetricsConstants.BUFFER_EMPTY);\n }\n }\n\n function onPlaybackStalled(e) {\n eventBus.trigger(Events.PLAYBACK_STALLED, { e: e });\n }\n\n function onStreamInitializing(e) {\n applyServiceDescription(e.streamInfo, e.mediaInfo);\n }\n\n function applyServiceDescription(streamInfo, mediaInfo) {\n if (streamInfo && streamInfo.manifestInfo && streamInfo.manifestInfo.serviceDescriptions) {\n // is there a service description for low latency defined?\n let llsd;\n\n for (let i = 0; i < streamInfo.manifestInfo.serviceDescriptions.length; i++) {\n const sd = streamInfo.manifestInfo.serviceDescriptions[i];\n if (sd.schemeIdUri === Constants.SERVICE_DESCRIPTION_LL_SCHEME) {\n llsd = sd;\n break;\n }\n }\n\n if (llsd) {\n if (mediaInfo && mediaInfo.supplementalProperties &&\n mediaInfo.supplementalProperties[Constants.SUPPLEMENTAL_PROPERTY_LL_SCHEME] === 'true') {\n if (llsd.latency && llsd.latency.target > 0) {\n logger.debug('Apply LL properties coming from service description. Target Latency (ms):', llsd.latency.target);\n settings.update({\n streaming: {\n lowLatencyEnabled: true,\n liveDelay: llsd.latency.target / 1000,\n liveCatchup: {\n minDrift: llsd.latency.max > llsd.latency.target ? (llsd.latency.max - llsd.latency.target) / 1000 : undefined\n }\n }\n });\n }\n if (llsd.playbackRate && llsd.playbackRate.max > 1.0) {\n logger.debug('Apply LL properties coming from service description. Max PlaybackRate:', llsd.playbackRate.max);\n settings.update({\n streaming: {\n lowLatencyEnabled: true,\n liveCatchup: {\n playbackRate: llsd.playbackRate.max - 1.0\n }\n }\n });\n }\n }\n }\n }\n }\n\n function addAllListeners() {\n videoModel.addEventListener('canplay', onCanPlay);\n videoModel.addEventListener('play', onPlaybackStart);\n videoModel.addEventListener('waiting', onPlaybackWaiting);\n videoModel.addEventListener('playing', onPlaybackPlaying);\n videoModel.addEventListener('pause', onPlaybackPaused);\n videoModel.addEventListener('error', onPlaybackError);\n videoModel.addEventListener('seeking', onPlaybackSeeking);\n videoModel.addEventListener('seeked', onPlaybackSeeked);\n videoModel.addEventListener('timeupdate', onPlaybackTimeUpdated);\n videoModel.addEventListener('progress', onPlaybackProgress);\n videoModel.addEventListener('ratechange', onPlaybackRateChanged);\n videoModel.addEventListener('loadedmetadata', onPlaybackMetaDataLoaded);\n videoModel.addEventListener('stalled', onPlaybackStalled);\n videoModel.addEventListener('ended', onNativePlaybackEnded);\n }\n\n function removeAllListeners() {\n videoModel.removeEventListener('canplay', onCanPlay);\n videoModel.removeEventListener('play', onPlaybackStart);\n videoModel.removeEventListener('waiting', onPlaybackWaiting);\n videoModel.removeEventListener('playing', onPlaybackPlaying);\n videoModel.removeEventListener('pause', onPlaybackPaused);\n videoModel.removeEventListener('error', onPlaybackError);\n videoModel.removeEventListener('seeking', onPlaybackSeeking);\n videoModel.removeEventListener('seeked', onPlaybackSeeked);\n videoModel.removeEventListener('timeupdate', onPlaybackTimeUpdated);\n videoModel.removeEventListener('progress', onPlaybackProgress);\n videoModel.removeEventListener('ratechange', onPlaybackRateChanged);\n videoModel.removeEventListener('loadedmetadata', onPlaybackMetaDataLoaded);\n videoModel.removeEventListener('stalled', onPlaybackStalled);\n videoModel.removeEventListener('ended', onNativePlaybackEnded);\n }\n\n instance = {\n initialize: initialize,\n setConfig: setConfig,\n getStartTimeFromUriParameters: getStartTimeFromUriParameters,\n getTimeToStreamEnd: getTimeToStreamEnd,\n getTime: getTime,\n getNormalizedTime: getNormalizedTime,\n getPlaybackRate: getPlaybackRate,\n getPlayedRanges: getPlayedRanges,\n getEnded: getEnded,\n getIsDynamic: getIsDynamic,\n getStreamController: getStreamController,\n computeAndSetLiveDelay: computeAndSetLiveDelay,\n getLiveDelay: getLiveDelay,\n setLiveDelay: setLiveDelay,\n getCurrentLiveLatency: getCurrentLiveLatency,\n play: play,\n isPaused: isPaused,\n pause: pause,\n isSeeking: isSeeking,\n getStreamEndTime,\n seek: seek,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nPlaybackController.__dashjs_factory_name = 'PlaybackController';\nexport default FactoryMaker.getSingletonFactory(PlaybackController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport BufferLevelRule from '../rules/scheduling/BufferLevelRule';\nimport FragmentModel from '../models/FragmentModel';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nfunction ScheduleController(config) {\n\n config = config || {};\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const adapter = config.adapter;\n const dashMetrics = config.dashMetrics;\n const mediaPlayerModel = config.mediaPlayerModel;\n const fragmentModel = config.fragmentModel;\n const abrController = config.abrController;\n const playbackController = config.playbackController;\n const textController = config.textController;\n const streamInfo = config.streamInfo;\n const type = config.type;\n const mimeType = config.mimeType;\n const mediaController = config.mediaController;\n const bufferController = config.bufferController;\n const settings = config.settings;\n\n let instance,\n logger,\n currentRepresentationInfo,\n initialRequest,\n isStopped,\n isFragmentProcessingInProgress,\n timeToLoadDelay,\n scheduleTimeout,\n seekTarget,\n hasVideoTrack,\n bufferLevelRule,\n lastFragmentRequest,\n topQualityIndex,\n lastInitQuality,\n replaceRequestArray,\n switchTrack,\n replacingBuffer,\n mediaRequest,\n checkPlaybackQuality,\n isReplacementRequest;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n resetInitialSettings();\n }\n\n function initialize(_hasVideoTrack) {\n hasVideoTrack = _hasVideoTrack;\n\n bufferLevelRule = BufferLevelRule(context).create({\n abrController: abrController,\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n textController: textController,\n settings: settings\n });\n\n //eventBus.on(Events.LIVE_EDGE_SEARCH_COMPLETED, onLiveEdgeSearchCompleted, this);\n eventBus.on(Events.DATA_UPDATE_STARTED, onDataUpdateStarted, this);\n eventBus.on(Events.FRAGMENT_LOADING_COMPLETED, onFragmentLoadingCompleted, this);\n eventBus.on(Events.STREAM_COMPLETED, onStreamCompleted, this);\n eventBus.on(Events.BUFFER_CLEARED, onBufferCleared, this);\n eventBus.on(Events.BYTES_APPENDED_END_FRAGMENT, onBytesAppended, this);\n eventBus.on(Events.QUOTA_EXCEEDED, onQuotaExceeded, this);\n eventBus.on(Events.PLAYBACK_SEEKING, onPlaybackSeeking, this);\n eventBus.on(Events.PLAYBACK_STARTED, onPlaybackStarted, this);\n eventBus.on(Events.PLAYBACK_RATE_CHANGED, onPlaybackRateChanged, this);\n eventBus.on(Events.PLAYBACK_TIME_UPDATED, onPlaybackTimeUpdated, this);\n eventBus.on(Events.URL_RESOLUTION_FAILED, onURLResolutionFailed, this);\n eventBus.on(Events.FRAGMENT_LOADING_ABANDONED, onFragmentLoadingAbandoned, this);\n eventBus.on(Events.BUFFERING_COMPLETED, onBufferingCompleted, this);\n }\n\n function getType() {\n return type;\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function setCurrentRepresentation(representationInfo) {\n currentRepresentationInfo = representationInfo;\n }\n\n function isStarted() {\n return (isStopped === false);\n }\n\n function start() {\n if (isStarted()) return;\n if (!currentRepresentationInfo || bufferController.getIsBufferingCompleted()) return;\n\n logger.debug('Schedule Controller starts');\n isStopped = false;\n dashMetrics.createPlaylistTraceMetrics(currentRepresentationInfo.id, playbackController.getTime() * 1000, playbackController.getPlaybackRate());\n\n if (initialRequest) {\n initialRequest = false;\n }\n\n startScheduleTimer(0);\n }\n\n function stop() {\n if (isStopped) return;\n\n logger.debug('Schedule Controller stops');\n logger.debug(type + ' Schedule Controller stops');\n isStopped = true;\n clearTimeout(scheduleTimeout);\n }\n\n function hasTopQualityChanged(type, id) {\n topQualityIndex[id] = topQualityIndex[id] || {};\n const newTopQualityIndex = abrController.getTopQualityIndexFor(type, id);\n\n if (topQualityIndex[id][type] != newTopQualityIndex) {\n logger.info('Top quality ' + type + ' index has changed from ' + topQualityIndex[id][type] + ' to ' + newTopQualityIndex);\n topQualityIndex[id][type] = newTopQualityIndex;\n return true;\n }\n return false;\n\n }\n\n function schedule() {\n if (isStopped || isFragmentProcessingInProgress ||\n (playbackController.isPaused() && !settings.get().streaming.scheduleWhilePaused) ||\n ((type === Constants.FRAGMENTED_TEXT || type === Constants.TEXT) && !textController.isTextEnabled()) ||\n bufferController.getIsBufferingCompleted()) {\n stop();\n return;\n }\n\n validateExecutedFragmentRequest();\n\n const isReplacement = replaceRequestArray.length > 0;\n if (replacingBuffer || isNaN(lastInitQuality) || switchTrack || isReplacement ||\n hasTopQualityChanged(type, streamInfo.id) ||\n bufferLevelRule.execute(type, currentRepresentationInfo, hasVideoTrack)) {\n const getNextFragment = function () {\n if ((currentRepresentationInfo.quality !== lastInitQuality || switchTrack) && (!replacingBuffer)) {\n if (switchTrack) {\n logger.debug('Switch track for ' + type + ', representation id = ' + currentRepresentationInfo.id);\n replacingBuffer = mediaController.getSwitchMode(type) === Constants.TRACK_SWITCH_MODE_ALWAYS_REPLACE;\n if (replacingBuffer && bufferController.replaceBuffer) {\n bufferController.replaceBuffer();\n }\n switchTrack = false;\n } else {\n logger.debug('Quality has changed, get init request for representationid = ' + currentRepresentationInfo.id);\n }\n eventBus.trigger(Events.INIT_FRAGMENT_NEEDED,\n { representationId: currentRepresentationInfo.id, sender: instance },\n { streamId: streamInfo.id, mediaType: type }\n );\n lastInitQuality = currentRepresentationInfo.quality;\n checkPlaybackQuality = false;\n } else {\n const replacement = replaceRequestArray.shift();\n\n if (replacement && replacement.isInitializationRequest()) {\n // To be sure the specific init segment had not already been loaded\n eventBus.trigger(Events.INIT_FRAGMENT_NEEDED,\n { representationId: replacement.representationId, sender: instance },\n { streamId: streamInfo.id, mediaType: type }\n );\n checkPlaybackQuality = false;\n } else {\n eventBus.trigger(Events.MEDIA_FRAGMENT_NEEDED,\n { seekTarget: seekTarget, replacement: replacement },\n { streamId: streamInfo.id, mediaType: type }\n );\n checkPlaybackQuality = true;\n }\n }\n };\n\n setFragmentProcessState(true);\n if (!isReplacement && checkPlaybackQuality) {\n abrController.checkPlaybackQuality(type);\n }\n\n getNextFragment();\n\n } else {\n startScheduleTimer(500);\n }\n }\n\n function validateExecutedFragmentRequest() {\n // Validate that the fragment request executed and appended into the source buffer is as\n // good of quality as the current quality and is the correct media track.\n const time = playbackController.getTime();\n let safeBufferLevel = 1.5;\n\n if (isNaN(currentRepresentationInfo.fragmentDuration)) { //fragmentDuration of representationInfo is not defined,\n // call metrics function to have data in the latest scheduling info...\n // if no metric, returns 0. In this case, rule will return false.\n const schedulingInfo = dashMetrics.getCurrentSchedulingInfo(currentRepresentationInfo.mediaInfo.type);\n safeBufferLevel = schedulingInfo ? schedulingInfo.duration * 1.5 : 1.5;\n }\n const request = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: time + safeBufferLevel,\n threshold: 0\n })[0];\n\n if (request && replaceRequestArray.indexOf(request) === -1 && !adapter.getIsTextTrack(mimeType)) {\n const fastSwitchModeEnabled = settings.get().streaming.fastSwitchEnabled;\n const bufferLevel = bufferController.getBufferLevel();\n const abandonmentState = abrController.getAbandonmentStateFor(type);\n\n // Only replace on track switch when NEVER_REPLACE\n const trackChanged = !mediaController.isCurrentTrack(request.mediaInfo) && mediaController.getSwitchMode(request.mediaInfo.type) === Constants.TRACK_SWITCH_MODE_NEVER_REPLACE;\n const qualityChanged = request.quality < currentRepresentationInfo.quality;\n\n if (fastSwitchModeEnabled && (trackChanged || qualityChanged) && bufferLevel >= safeBufferLevel && abandonmentState !== MetricsConstants.ABANDON_LOAD) {\n replaceRequest(request);\n isReplacementRequest = true;\n logger.debug('Reloading outdated fragment at index: ', request.index);\n } else if (request.quality > currentRepresentationInfo.quality && !replacingBuffer) {\n // The buffer has better quality it in then what we would request so set append point to end of buffer!!\n setSeekTarget(playbackController.getTime() + bufferLevel);\n }\n }\n }\n\n function startScheduleTimer(value) {\n clearTimeout(scheduleTimeout);\n\n scheduleTimeout = setTimeout(schedule, value);\n }\n\n function setFragmentProcessState (state) {\n if (isFragmentProcessingInProgress !== state ) {\n isFragmentProcessingInProgress = state;\n } else {\n logger.debug('isFragmentProcessingInProgress is already equal to', state);\n }\n }\n\n function processInitRequest(request) {\n if (request) {\n setFragmentProcessState(true);\n fragmentModel.executeRequest(request);\n }\n }\n\n function processMediaRequest(request) {\n if (request) {\n logger.debug('Next fragment request url is ' + request.url);\n fragmentModel.executeRequest(request);\n } else { // Use case - Playing at the bleeding live edge and frag is not available yet. Cycle back around.\n if (playbackController.getIsDynamic()) {\n logger.debug('Next fragment seems to be at the bleeding live edge and is not available yet. Rescheduling.');\n }\n setFragmentProcessState(false);\n startScheduleTimer(settings.get().streaming.lowLatencyEnabled ? 100 : 500);\n }\n }\n\n function switchTrackAsked() {\n switchTrack = true;\n }\n\n function replaceRequest(request) {\n replaceRequestArray.push(request);\n }\n\n function completeQualityChange(trigger) {\n if (playbackController && fragmentModel) {\n const item = fragmentModel.getRequests({\n state: FragmentModel.FRAGMENT_MODEL_EXECUTED,\n time: playbackController.getTime(),\n threshold: 0\n })[0];\n if (item && playbackController.getTime() >= item.startTime) {\n if ((!lastFragmentRequest.mediaInfo || (item.mediaInfo.type === lastFragmentRequest.mediaInfo.type && item.mediaInfo.id !== lastFragmentRequest.mediaInfo.id)) && trigger) {\n eventBus.trigger(Events.TRACK_CHANGE_RENDERED, {\n mediaType: type,\n oldMediaInfo: lastFragmentRequest.mediaInfo,\n newMediaInfo: item.mediaInfo\n });\n }\n if ((item.quality !== lastFragmentRequest.quality || item.adaptationIndex !== lastFragmentRequest.adaptationIndex) && trigger) {\n eventBus.trigger(Events.QUALITY_CHANGE_RENDERED, {\n mediaType: type,\n oldQuality: lastFragmentRequest.quality,\n newQuality: item.quality\n });\n }\n lastFragmentRequest = {\n mediaInfo: item.mediaInfo,\n quality: item.quality,\n adaptationIndex: item.adaptationIndex\n };\n }\n }\n }\n\n function onStreamCompleted() {\n stop();\n setFragmentProcessState(false);\n logger.info(`Stream ${streamInfo.id} is complete`);\n }\n\n function onFragmentLoadingCompleted(e) {\n if (e.request.mediaInfo.streamInfo.id !== streamInfo.id || e.request.mediaType !== type) return;\n\n logger.info('OnFragmentLoadingCompleted - Url:', e.request ? e.request.url : 'undefined', e.request.range ? ', Range:' + e.request.range : '');\n\n if (adapter.getIsTextTrack(mimeType)) {\n setFragmentProcessState(false);\n }\n\n if (e.error && e.request.serviceLocation && !isStopped) {\n replaceRequest(e.request);\n setFragmentProcessState(false);\n startScheduleTimer(0);\n }\n\n if (replacingBuffer) {\n mediaRequest = e.request;\n }\n }\n\n function onPlaybackTimeUpdated() {\n completeQualityChange(true);\n }\n\n function onBytesAppended(e) {\n if (replacingBuffer && !isNaN(e.startTime)) {\n replacingBuffer = false;\n fragmentModel.addExecutedRequest(mediaRequest);\n }\n\n setFragmentProcessState(false);\n if (isReplacementRequest && !isNaN(e.startTime)) {\n //replace requests process is in progress, call schedule in n seconds.\n //it is done in order to not add a fragment at the new quality at the end of the buffer before replace process is over.\n //Indeed, if schedule is called too early, the executed request tested is the same that the one tested during previous schedule (at the new quality).\n const currentTime = playbackController.getTime();\n const fragEndTime = e.startTime + currentRepresentationInfo.fragmentDuration;\n const safeBufferLevel = currentRepresentationInfo.fragmentDuration * 1.5;\n if ((currentTime + safeBufferLevel) >= fragEndTime) {\n startScheduleTimer(0);\n } else {\n startScheduleTimer((fragEndTime - (currentTime + safeBufferLevel)) * 1000);\n }\n isReplacementRequest = false;\n } else {\n startScheduleTimer(0);\n }\n }\n\n function onFragmentLoadingAbandoned(e) {\n logger.info('onFragmentLoadingAbandoned request: ' + e.request.url + ' has been aborted');\n if (!playbackController.isSeeking() && !switchTrack) {\n logger.info('onFragmentLoadingAbandoned request: ' + e.request.url + ' has to be downloaded again, origin is not seeking process or switch track call');\n replaceRequest(e.request);\n }\n setFragmentProcessState(false);\n startScheduleTimer(0);\n }\n\n function onDataUpdateStarted(/*e*/) {\n // stop();\n }\n\n function onBufferingCompleted(/*e*/) {\n stop();\n }\n\n function onBufferCleared(e) {\n if (replacingBuffer && settings.get().streaming.flushBufferAtTrackSwitch) {\n // For some devices (like chromecast) it is necessary to seek the video element to reset the internal decoding buffer,\n // otherwise audio track switch will be effective only once after previous buffered track is consumed\n playbackController.seek(playbackController.getTime() + 0.001, false, true);\n }\n\n // (Re)start schedule once buffer has been pruned after a QuotaExceededError\n if (e.hasEnoughSpaceToAppend && e.quotaExceeded) {\n start();\n }\n }\n\n function onQuotaExceeded(/*e*/) {\n // Stop scheduler (will be restarted once buffer is pruned)\n stop();\n setFragmentProcessState(false);\n }\n\n function onURLResolutionFailed() {\n fragmentModel.abortRequests();\n stop();\n }\n\n function onPlaybackStarted() {\n if (isStopped || !settings.get().streaming.scheduleWhilePaused) {\n start();\n }\n }\n\n function onPlaybackSeeking(e) {\n setSeekTarget(e.seekTime);\n setTimeToLoadDelay(0);\n\n if (isStopped) {\n start();\n }\n\n const latency = currentRepresentationInfo.DVRWindow && playbackController ? currentRepresentationInfo.DVRWindow.end - playbackController.getTime() : NaN;\n dashMetrics.updateManifestUpdateInfo({\n latency: latency\n });\n\n if (!isFragmentProcessingInProgress) {\n // No pending request, request next segment at seek target\n startScheduleTimer(0);\n } else {\n // Abort current request\n fragmentModel.abortRequests();\n }\n }\n\n function onPlaybackRateChanged(e) {\n dashMetrics.updatePlayListTraceMetrics({playbackspeed: e.playbackRate.toString()});\n }\n\n function setSeekTarget(value) {\n seekTarget = value;\n }\n\n function setTimeToLoadDelay(value) {\n timeToLoadDelay = value;\n }\n\n function getTimeToLoadDelay() {\n return timeToLoadDelay;\n }\n\n function getBufferTarget() {\n return bufferLevelRule.getBufferTarget(type, currentRepresentationInfo, hasVideoTrack);\n }\n\n function resetInitialSettings() {\n checkPlaybackQuality = true;\n isFragmentProcessingInProgress = false;\n timeToLoadDelay = 0;\n seekTarget = NaN;\n initialRequest = true;\n lastInitQuality = NaN;\n lastFragmentRequest = {\n mediaInfo: undefined,\n quality: NaN,\n adaptationIndex: NaN\n };\n topQualityIndex = {};\n replaceRequestArray = [];\n isStopped = true;\n switchTrack = false;\n replacingBuffer = false;\n mediaRequest = null;\n isReplacementRequest = false;\n }\n\n function reset() {\n //eventBus.off(Events.LIVE_EDGE_SEARCH_COMPLETED, onLiveEdgeSearchCompleted, this);\n eventBus.off(Events.DATA_UPDATE_STARTED, onDataUpdateStarted, this);\n eventBus.off(Events.FRAGMENT_LOADING_COMPLETED, onFragmentLoadingCompleted, this);\n eventBus.off(Events.STREAM_COMPLETED, onStreamCompleted, this);\n eventBus.off(Events.BUFFER_CLEARED, onBufferCleared, this);\n eventBus.off(Events.BYTES_APPENDED_END_FRAGMENT, onBytesAppended, this);\n eventBus.off(Events.QUOTA_EXCEEDED, onQuotaExceeded, this);\n eventBus.off(Events.PLAYBACK_SEEKING, onPlaybackSeeking, this);\n eventBus.off(Events.PLAYBACK_STARTED, onPlaybackStarted, this);\n eventBus.off(Events.PLAYBACK_RATE_CHANGED, onPlaybackRateChanged, this);\n eventBus.off(Events.PLAYBACK_TIME_UPDATED, onPlaybackTimeUpdated, this);\n eventBus.off(Events.URL_RESOLUTION_FAILED, onURLResolutionFailed, this);\n eventBus.off(Events.FRAGMENT_LOADING_ABANDONED, onFragmentLoadingAbandoned, this);\n eventBus.off(Events.BUFFERING_COMPLETED, onBufferingCompleted, this);\n\n stop();\n completeQualityChange(false);\n resetInitialSettings();\n }\n\n function getPlaybackController() {\n return playbackController;\n }\n\n instance = {\n initialize: initialize,\n getType: getType,\n getStreamId: getStreamId,\n setCurrentRepresentation: setCurrentRepresentation,\n setSeekTarget: setSeekTarget,\n setTimeToLoadDelay: setTimeToLoadDelay,\n getTimeToLoadDelay: getTimeToLoadDelay,\n switchTrackAsked: switchTrackAsked,\n isStarted: isStarted,\n start: start,\n stop: stop,\n reset: reset,\n getBufferTarget: getBufferTarget,\n processInitRequest: processInitRequest,\n processMediaRequest: processMediaRequest,\n getPlaybackController\n };\n\n setup();\n\n return instance;\n}\n\nScheduleController.__dashjs_factory_name = 'ScheduleController';\nexport default FactoryMaker.getClassFactory(ScheduleController);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport Stream from '../Stream';\nimport ManifestUpdater from '../ManifestUpdater';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport {\n PlayList,\n PlayListTrace\n} from '../vo/metrics/PlayList';\nimport Debug from '../../core/Debug';\nimport InitCache from '../utils/InitCache';\nimport URLUtils from '../utils/URLUtils';\nimport MediaPlayerEvents from '../MediaPlayerEvents';\nimport TimeSyncController from './TimeSyncController';\nimport MediaSourceController from './MediaSourceController';\nimport DashJSError from '../vo/DashJSError';\nimport Errors from '../../core/errors/Errors';\nimport EventController from './EventController';\n\nconst PLAYBACK_ENDED_TIMER_INTERVAL = 200;\nconst PREBUFFERING_CAN_START_INTERVAL = 500;\n\nfunction StreamController() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n capabilities,\n manifestUpdater,\n manifestLoader,\n manifestModel,\n adapter,\n dashMetrics,\n mediaSourceController,\n timeSyncController,\n baseURLController,\n abrController,\n mediaController,\n eventController,\n textController,\n initCache,\n urlUtils,\n errHandler,\n timelineConverter,\n streams,\n activeStream,\n protectionController,\n protectionData,\n autoPlay,\n isStreamSwitchingInProgress,\n hasMediaError,\n hasInitialisationError,\n mediaSource,\n videoModel,\n playbackController,\n mediaPlayerModel,\n isPaused,\n initialPlayback,\n isPeriodSwitchInProgress,\n playbackEndedTimerInterval,\n prebufferingCanStartInterval,\n buffers,\n preloadingStreams,\n supportsChangeType,\n settings,\n preBufferingCheckInProgress;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n timeSyncController = TimeSyncController(context).getInstance();\n mediaSourceController = MediaSourceController(context).getInstance();\n initCache = InitCache(context).getInstance();\n urlUtils = URLUtils(context).getInstance();\n\n resetInitialSettings();\n }\n\n function initialize(autoPl, protData) {\n checkConfig();\n\n autoPlay = autoPl;\n protectionData = protData;\n timelineConverter.initialize();\n\n manifestUpdater = ManifestUpdater(context).create();\n manifestUpdater.setConfig({\n manifestModel: manifestModel,\n adapter: adapter,\n manifestLoader: manifestLoader,\n errHandler: errHandler,\n settings: settings\n });\n manifestUpdater.initialize();\n\n eventController = EventController(context).getInstance();\n eventController.setConfig({\n manifestUpdater: manifestUpdater,\n playbackController: playbackController\n });\n eventController.start();\n\n registerEvents();\n }\n\n function registerEvents() {\n eventBus.on(Events.PLAYBACK_TIME_UPDATED, onPlaybackTimeUpdated, instance);\n eventBus.on(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.on(Events.GAP_CAUSED_SEEK_TO_PERIOD_END, onGapCausedPlaybackSeek, instance);\n eventBus.on(Events.PLAYBACK_ERROR, onPlaybackError, instance);\n eventBus.on(Events.PLAYBACK_STARTED, onPlaybackStarted, instance);\n eventBus.on(Events.PLAYBACK_PAUSED, onPlaybackPaused, instance);\n eventBus.on(Events.PLAYBACK_ENDED, onEnded, instance, { priority: EventBus.EVENT_PRIORITY_HIGH });\n eventBus.on(Events.MANIFEST_UPDATED, onManifestUpdated, instance);\n eventBus.on(Events.STREAM_BUFFERING_COMPLETED, onStreamBufferingCompleted, instance);\n eventBus.on(Events.MANIFEST_VALIDITY_CHANGED, onManifestValidityChanged, instance);\n eventBus.on(Events.TIME_SYNCHRONIZATION_COMPLETED, onTimeSyncCompleted, instance);\n eventBus.on(MediaPlayerEvents.METRIC_ADDED, onMetricAdded, instance);\n }\n\n function unRegisterEvents() {\n eventBus.off(Events.PLAYBACK_TIME_UPDATED, onPlaybackTimeUpdated, instance);\n eventBus.off(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.off(Events.GAP_CAUSED_SEEK_TO_PERIOD_END, onGapCausedPlaybackSeek, instance);\n eventBus.off(Events.PLAYBACK_ERROR, onPlaybackError, instance);\n eventBus.off(Events.PLAYBACK_STARTED, onPlaybackStarted, instance);\n eventBus.off(Events.PLAYBACK_PAUSED, onPlaybackPaused, instance);\n eventBus.off(Events.PLAYBACK_ENDED, onEnded, instance);\n eventBus.off(Events.MANIFEST_UPDATED, onManifestUpdated, instance);\n eventBus.off(Events.STREAM_BUFFERING_COMPLETED, onStreamBufferingCompleted, instance);\n eventBus.off(Events.MANIFEST_VALIDITY_CHANGED, onManifestValidityChanged, instance);\n eventBus.off(Events.TIME_SYNCHRONIZATION_COMPLETED, onTimeSyncCompleted, instance);\n eventBus.off(MediaPlayerEvents.METRIC_ADDED, onMetricAdded, instance);\n }\n\n /*\n * Called when current playback position is changed.\n * Used to determine the time current stream is finished and we should switch to the next stream.\n */\n function onPlaybackTimeUpdated(/*e*/) {\n if (hasVideoTrack()) {\n const playbackQuality = videoModel.getPlaybackQuality();\n if (playbackQuality) {\n dashMetrics.addDroppedFrames(playbackQuality);\n }\n }\n }\n\n function onPlaybackSeeking(e) {\n const seekingStream = getStreamForTime(e.seekTime);\n\n if (seekingStream === activeStream && preloadingStreams && preloadingStreams.length > 0) {\n // Seeking to the current period was requested while preloading the next one, deactivate preloading one\n preloadingStreams.forEach((s) => {\n s.deactivate(true);\n });\n }\n\n if (seekingStream && seekingStream !== activeStream) {\n // If we're preloading other stream, the active one was deactivated and we need to switch back\n flushPlaylistMetrics(PlayListTrace.END_OF_PERIOD_STOP_REASON);\n switchStream(seekingStream, activeStream, e.seekTime);\n } else {\n flushPlaylistMetrics(PlayListTrace.USER_REQUEST_STOP_REASON);\n }\n\n createPlaylistMetrics(PlayList.SEEK_START_REASON);\n }\n\n function onGapCausedPlaybackSeek(e) {\n const nextStream = getNextStream();\n flushPlaylistMetrics(PlayListTrace.END_OF_PERIOD_STOP_REASON);\n switchStream(nextStream, activeStream, e.seekTime);\n createPlaylistMetrics(PlayList.SEEK_START_REASON);\n }\n\n function onPlaybackStarted( /*e*/) {\n logger.debug('[onPlaybackStarted]');\n if (initialPlayback) {\n initialPlayback = false;\n createPlaylistMetrics(PlayList.INITIAL_PLAYOUT_START_REASON);\n } else {\n if (isPaused) {\n isPaused = false;\n createPlaylistMetrics(PlayList.RESUME_FROM_PAUSE_START_REASON);\n }\n }\n }\n\n function onPlaybackPaused(e) {\n logger.debug('[onPlaybackPaused]');\n if (!e.ended) {\n isPaused = true;\n flushPlaylistMetrics(PlayListTrace.USER_REQUEST_STOP_REASON);\n }\n }\n\n function startPlaybackEndedTimerInterval() {\n if (!playbackEndedTimerInterval) {\n playbackEndedTimerInterval = setInterval(function () {\n if (!isStreamSwitchingInProgress && playbackController.getTimeToStreamEnd() <= 0) {\n eventBus.trigger(Events.PLAYBACK_ENDED, { 'isLast': getActiveStreamInfo().isLast });\n }\n }, PLAYBACK_ENDED_TIMER_INTERVAL);\n }\n }\n\n function stopPlaybackEndedTimerInterval() {\n if (playbackEndedTimerInterval) {\n clearInterval(playbackEndedTimerInterval);\n playbackEndedTimerInterval = null;\n }\n }\n\n function startCheckIfPrebufferingCanStartInterval() {\n if (!prebufferingCanStartInterval) {\n prebufferingCanStartInterval = setInterval(function () {\n checkIfPrebufferingCanStart();\n }, PREBUFFERING_CAN_START_INTERVAL);\n }\n }\n\n function stopCheckIfPrebufferingCanStartInterval() {\n clearInterval(prebufferingCanStartInterval);\n prebufferingCanStartInterval = null;\n }\n\n function checkIfPrebufferingCanStart() {\n // In multiperiod situations, we constantly check if the streams have finished buffering so we can immediately start buffering the next stream\n if (!activeStream || !hasStreamFinishedBuffering(activeStream)) {\n return;\n }\n const upcomingStreams = getNextStreams(activeStream);\n let i = 0;\n\n while (i < upcomingStreams.length) {\n const stream = upcomingStreams[i];\n const previousStream = i === 0 ? activeStream : upcomingStreams[i - 1];\n // If the preloading for the current stream is not scheduled, but its predecessor has finished buffering we can start prebuffering this stream\n if (!stream.getPreloadingScheduled() && (hasStreamFinishedBuffering(previousStream))) {\n\n if (mediaSource) {\n // We can not start prebuffering if the start of the next period is in the future. This will cause problems when calculating the segmentAvailabilityRange and updating the representations in the RepresentationController\n // As long as the timeline converter returns an invalid range we do not start the prebuffering\n const mediaTypes = [Constants.VIDEO, Constants.AUDIO];\n let segmentAvailabilityRangeIsOk = true;\n\n mediaTypes.forEach((mediaType) => {\n const mediaInfo = adapter.getMediaInfoForType(stream.getStreamInfo(), mediaType);\n const voRepresentations = adapter.getVoRepresentations(mediaInfo);\n voRepresentations.forEach((voRep) => {\n const isDynamic = adapter.getIsDynamic();\n const range = timelineConverter.calcSegmentAvailabilityRange(voRep, isDynamic);\n\n if (range.end < range.start) {\n segmentAvailabilityRangeIsOk = false;\n }\n });\n });\n\n if (segmentAvailabilityRangeIsOk) {\n onStreamCanLoadNext(stream, previousStream);\n }\n }\n }\n i += 1;\n }\n }\n\n function hasStreamFinishedBuffering(stream) {\n try {\n if (!stream) {\n return false;\n }\n const streamProcessors = stream.getProcessors().filter((sp) => {\n return sp.getType() === Constants.AUDIO || sp.getType() === Constants.VIDEO;\n });\n\n if (!streamProcessors || streamProcessors.length === 0) {\n return false;\n }\n\n const unfinishedStreamProcessors = streamProcessors.filter((sp) => {\n return !sp.isBufferingCompleted();\n });\n\n return unfinishedStreamProcessors && unfinishedStreamProcessors.length === 0;\n\n } catch (e) {\n return false;\n }\n }\n\n function onStreamBufferingCompleted() {\n const isLast = getActiveStreamInfo().isLast;\n if (mediaSource && isLast) {\n logger.info('[onStreamBufferingCompleted] calls signalEndOfStream of mediaSourceController.');\n mediaSourceController.signalEndOfStream(mediaSource);\n }\n }\n\n function canSourceBuffersBeReused(nextStream, previousStream) {\n try {\n return (settings.get().streaming.reuseExistingSourceBuffers && previousStream.isProtectionCompatible(nextStream, previousStream) &&\n (supportsChangeType || previousStream.isMediaCodecCompatible(nextStream, previousStream)) && !hasCriticalTexttracks(nextStream));\n } catch (e) {\n return false;\n }\n }\n\n function onStreamCanLoadNext(nextStream, previousStream = null) {\n\n if (mediaSource && !nextStream.getPreloaded()) {\n // Seamless period switch allowed only if:\n // - none of the periods uses contentProtection.\n // - AND changeType method implemented by browser or periods use the same codec.\n let seamlessPeriodSwitch = canSourceBuffersBeReused(nextStream, previousStream);\n\n if (seamlessPeriodSwitch) {\n nextStream.setPreloadingScheduled(true);\n logger.info(`[onStreamCanLoadNext] Preloading next stream with id ${nextStream.getId()}`);\n isPeriodSwitchInProgress = true;\n nextStream.preload(mediaSource, buffers);\n preloadingStreams.push(nextStream);\n nextStream.getProcessors().forEach(p => {\n p.setBufferingTime(nextStream.getStartTime());\n });\n }\n }\n }\n\n function hasCriticalTexttracks(stream) {\n try {\n // if the upcoming stream has stpp or wvtt texttracks we need to reset the sourcebuffers and can not prebuffer\n const streamInfo = stream.getStreamInfo();\n const as = adapter.getAdaptationForType(streamInfo.index, Constants.FRAGMENTED_TEXT, streamInfo);\n if (!as) {\n return false;\n }\n\n return (as.codecs.indexOf('stpp') !== -1) || (as.codecs.indexOf('wvtt') !== -1);\n } catch (e) {\n return false;\n }\n }\n\n function getStreamForTime(time) {\n\n if (isNaN(time)) {\n return null;\n }\n\n let streamDuration = 0;\n let stream = null;\n\n const ln = streams.length;\n\n if (ln > 0) {\n streamDuration += streams[0].getStartTime();\n }\n\n for (let i = 0; i < ln; i++) {\n stream = streams[i];\n streamDuration = parseFloat((streamDuration + stream.getDuration()).toFixed(5));\n\n if (time < streamDuration) {\n return stream;\n }\n }\n\n return null;\n }\n\n /**\n * Returns a playhead time, in seconds, converted to be relative\n * to the start of an identified stream/period or null if no such stream\n * @param {number} time\n * @param {string} id\n * @returns {number|null}\n */\n function getTimeRelativeToStreamId(time, id) {\n let stream = null;\n let baseStart = 0;\n let streamStart = 0;\n let streamDur = null;\n\n for (let i = 0; i < streams.length; i++) {\n stream = streams[i];\n streamStart = stream.getStartTime();\n streamDur = stream.getDuration();\n\n // use start time, if not undefined or NaN or similar\n if (Number.isFinite(streamStart)) {\n baseStart = streamStart;\n }\n\n if (stream.getId() === id) {\n return time - baseStart;\n } else {\n // use duration if not undefined or NaN or similar\n if (Number.isFinite(streamDur)) {\n baseStart += streamDur;\n }\n }\n }\n\n return null;\n }\n\n function getActiveStreamProcessors() {\n return activeStream ? activeStream.getProcessors() : [];\n }\n\n function onEnded(e) {\n if (!activeStream.getIsEndedEventSignaled()) {\n activeStream.setIsEndedEventSignaled(true);\n const nextStream = getNextStream();\n if (nextStream) {\n logger.debug(`StreamController onEnded, found next stream with id ${nextStream.getStreamInfo().id}`);\n switchStream(nextStream, activeStream, NaN);\n } else {\n logger.debug('StreamController no next stream found');\n activeStream.setIsEndedEventSignaled(false);\n }\n flushPlaylistMetrics(nextStream ? PlayListTrace.END_OF_PERIOD_STOP_REASON : PlayListTrace.END_OF_CONTENT_STOP_REASON);\n isPeriodSwitchInProgress = false;\n }\n if (e && e.isLast) {\n stopPlaybackEndedTimerInterval();\n }\n }\n\n function getNextStream(stream = null) {\n const refStream = stream ? stream : activeStream ? activeStream : null;\n if (refStream) {\n const start = refStream.getStreamInfo().start;\n const duration = refStream.getStreamInfo().duration;\n const streamEnd = parseFloat((start + duration).toFixed(5));\n\n let i = 0;\n let targetIndex = -1;\n let lastDiff = NaN;\n while (i < streams.length) {\n const s = streams[i];\n const diff = s.getStreamInfo().start - streamEnd;\n\n if (diff >= 0 && (isNaN(lastDiff) || diff < lastDiff)) {\n lastDiff = diff;\n targetIndex = i;\n }\n\n i += 1;\n }\n\n if (targetIndex >= 0) {\n return streams[targetIndex];\n }\n\n return null;\n }\n\n return null;\n }\n\n function getNextStreams(stream) {\n try {\n const refStream = stream ? stream : activeStream ? activeStream : null;\n\n if (refStream) {\n const start = refStream.getStreamInfo().start;\n\n return streams.filter(function (stream) {\n return (stream.getStreamInfo().start > start);\n });\n }\n } catch (e) {\n return [];\n }\n }\n\n function switchStream(stream, previousStream, seekTime) {\n\n if (isStreamSwitchingInProgress || !stream || (previousStream === stream && stream.isActive())) return;\n isStreamSwitchingInProgress = true;\n\n eventBus.trigger(Events.PERIOD_SWITCH_STARTED, {\n fromStreamInfo: previousStream ? previousStream.getStreamInfo() : null,\n toStreamInfo: stream.getStreamInfo()\n });\n\n let seamlessPeriodSwitch = false;\n if (previousStream) {\n seamlessPeriodSwitch = canSourceBuffersBeReused(stream, previousStream);\n previousStream.deactivate(seamlessPeriodSwitch);\n }\n\n // Determine seek time when switching to new period\n // - seek at given seek time\n // - or seek at period start if upcoming period is not prebuffered\n seekTime = !isNaN(seekTime) ? seekTime : (!seamlessPeriodSwitch && previousStream ? stream.getStreamInfo().start : NaN);\n logger.info(`Switch to stream ${stream.getId()}. Seektime is ${seekTime}, current playback time is ${playbackController.getTime()}`);\n logger.info(`Seamless period switch is set to ${seamlessPeriodSwitch}`);\n\n activeStream = stream;\n preloadingStreams = preloadingStreams.filter((s) => {\n return s.getId() !== activeStream.getId();\n });\n playbackController.initialize(getActiveStreamInfo(), !!previousStream, seekTime);\n if (videoModel.getElement()) {\n openMediaSource(seekTime, (previousStream === null), false, seamlessPeriodSwitch);\n } else {\n activateStream(seekTime, seamlessPeriodSwitch);\n }\n isPeriodSwitchInProgress = false;\n }\n\n function switchToVideoElement(seekTime) {\n if (activeStream) {\n playbackController.initialize(getActiveStreamInfo());\n openMediaSource(seekTime, false, true, false);\n }\n }\n\n function openMediaSource(seekTime, sourceInitialized, streamActivated, keepBuffers) {\n let sourceUrl;\n\n function onMediaSourceOpen() {\n // Manage situations in which a call to reset happens while MediaSource is being opened\n if (!mediaSource || mediaSource.readyState !== 'open') return;\n\n logger.debug('MediaSource is open!');\n window.URL.revokeObjectURL(sourceUrl);\n mediaSource.removeEventListener('sourceopen', onMediaSourceOpen);\n mediaSource.removeEventListener('webkitsourceopen', onMediaSourceOpen);\n setMediaDuration();\n\n if (!sourceInitialized) {\n eventBus.trigger(Events.SOURCE_INITIALIZED);\n }\n\n if (streamActivated) {\n activeStream.setMediaSource(mediaSource);\n } else {\n activateStream(seekTime, keepBuffers);\n }\n }\n\n if (!mediaSource) {\n mediaSource = mediaSourceController.createMediaSource();\n mediaSource.addEventListener('sourceopen', onMediaSourceOpen, false);\n mediaSource.addEventListener('webkitsourceopen', onMediaSourceOpen, false);\n sourceUrl = mediaSourceController.attachMediaSource(mediaSource, videoModel);\n logger.debug('MediaSource attached to element. Waiting on open...');\n } else {\n if (keepBuffers) {\n activateStream(seekTime, keepBuffers);\n if (!sourceInitialized) {\n eventBus.trigger(Events.SOURCE_INITIALIZED);\n }\n } else {\n mediaSourceController.detachMediaSource(videoModel);\n mediaSource.addEventListener('sourceopen', onMediaSourceOpen, false);\n mediaSource.addEventListener('webkitsourceopen', onMediaSourceOpen, false);\n sourceUrl = mediaSourceController.attachMediaSource(mediaSource, videoModel);\n logger.debug('MediaSource attached to element. Waiting on open...');\n }\n }\n }\n\n function getActiveStream() {\n return activeStream;\n }\n\n function activateStream(seekTime, keepBuffers) {\n buffers = activeStream.activate(mediaSource, keepBuffers ? buffers : undefined);\n\n // check if change type is supported by the browser\n if (buffers) {\n const keys = Object.keys(buffers);\n if (keys.length > 0 && buffers[keys[0]].changeType) {\n supportsChangeType = true;\n }\n }\n\n if (!initialPlayback) {\n if (!isNaN(seekTime)) {\n // If the streamswitch has been triggered by a seek command there is no need to seek again. Still we need to trigger the seeking event in order for the controllers to adjust the new time\n if (seekTime === playbackController.getTime()) {\n eventBus.trigger(Events.SEEK_TARGET, {time: seekTime}, {streamId: activeStream.getId()});\n } else {\n playbackController.seek(seekTime);\n }\n }\n }\n\n if (autoPlay || !initialPlayback) {\n playbackController.play();\n }\n\n isStreamSwitchingInProgress = false;\n eventBus.trigger(Events.PERIOD_SWITCH_COMPLETED, { toStreamInfo: getActiveStreamInfo() });\n }\n\n function setMediaDuration(duration) {\n const manifestDuration = duration ? duration : getActiveStreamInfo().manifestInfo.duration;\n\n if (manifestDuration && !isNaN(manifestDuration)) {\n const mediaDuration = mediaSourceController.setDuration(mediaSource, manifestDuration);\n logger.debug('Duration successfully set to: ' + mediaDuration);\n }\n }\n\n function getComposedStream(streamInfo) {\n for (let i = 0, ln = streams.length; i < ln; i++) {\n if (streams[i].getId() === streamInfo.id) {\n return streams[i];\n }\n }\n return null;\n }\n\n function composeStreams() {\n try {\n const streamsInfo = adapter.getStreamsInfo();\n if (streamsInfo.length === 0) {\n throw new Error('There are no streams');\n }\n\n dashMetrics.updateManifestUpdateInfo({\n currentTime: playbackController.getTime(),\n buffered: videoModel.getBufferRange(),\n presentationStartTime: streamsInfo[0].start,\n clientTimeOffset: timelineConverter.getClientTimeOffset()\n });\n\n // Filter streams that are outdated and not included in the MPD anymore\n if (streams.length > 0) {\n streams = streams.filter((stream) => {\n\n const isStillIncluded = streamsInfo.filter((sInfo) => {\n return sInfo.id === stream.getId();\n }).length > 0;\n\n const shouldKeepStream = isStillIncluded || stream.getId() === activeStream.getId();\n\n if (!shouldKeepStream) {\n logger.debug(`Removing stream ${stream.getId()}`);\n }\n\n return shouldKeepStream;\n });\n }\n\n for (let i = 0, ln = streamsInfo.length; i < ln; i++) {\n // If the Stream object does not exist we probably loaded the manifest the first time or it was\n // introduced in the updated manifest, so we need to create a new Stream and perform all the initialization operations\n const streamInfo = streamsInfo[i];\n let stream = getComposedStream(streamInfo);\n\n if (!stream) {\n stream = Stream(context).create({\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n manifestUpdater: manifestUpdater,\n adapter: adapter,\n timelineConverter: timelineConverter,\n capabilities: capabilities,\n errHandler: errHandler,\n baseURLController: baseURLController,\n abrController: abrController,\n playbackController: playbackController,\n eventController: eventController,\n mediaController: mediaController,\n textController: textController,\n protectionController: protectionController,\n videoModel: videoModel,\n streamInfo: streamInfo,\n settings: settings\n });\n streams.push(stream);\n stream.initialize();\n } else {\n stream.updateData(streamInfo);\n }\n\n dashMetrics.addManifestUpdateStreamInfo(streamInfo);\n }\n\n if (!activeStream) {\n if (adapter.getIsDynamic() && streams.length) {\n // Compute and set live delay\n const manifestInfo = streamsInfo[0].manifestInfo;\n const fragmentDuration = getFragmentDurationForLiveDelayCalculation(streamsInfo, manifestInfo);\n playbackController.computeAndSetLiveDelay(fragmentDuration, manifestInfo.DVRWindowSize, manifestInfo.minBufferTime);\n }\n\n // we need to figure out what the correct starting period is\n let initialStream = null;\n const startTimeFromUri = playbackController.getStartTimeFromUriParameters(adapter.getIsDynamic());\n\n initialStream = getStreamForTime(startTimeFromUri);\n\n // For multiperiod streams we should avoid a switch of streams after the seek to the live edge. So we do a calculation of the expected seek time to find the right stream object.\n if (!initialStream && adapter.getIsDynamic() && streams.length) {\n logger.debug('Dynamic stream: Trying to find the correct starting period');\n initialStream = getInitialStream();\n }\n const startStream = initialStream !== null ? initialStream : streams[0];\n switchStream(startStream, null, NaN);\n startPlaybackEndedTimerInterval();\n startCheckIfPrebufferingCanStartInterval();\n }\n\n eventBus.trigger(Events.STREAMS_COMPOSED);\n\n } catch (e) {\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, e.message + 'nostreamscomposed', manifestModel.getValue()));\n hasInitialisationError = true;\n reset();\n }\n }\n\n function getInitialStream() {\n try {\n const liveEdge = timelineConverter.calcPresentationTimeFromWallTime(new Date(), adapter.getRegularPeriods()[0]);\n const targetDelay = playbackController.getLiveDelay();\n const targetTime = liveEdge - targetDelay;\n\n return getStreamForTime(targetTime);\n } catch (e) {\n return null;\n }\n }\n\n function getFragmentDurationForLiveDelayCalculation(streamInfos, manifestInfo) {\n try {\n let fragmentDuration = NaN;\n\n // We use the maxFragmentDuration attribute if present\n if (manifestInfo && !isNaN(manifestInfo.maxFragmentDuration) && isFinite(manifestInfo.maxFragmentDuration)) {\n return manifestInfo.maxFragmentDuration;\n }\n\n // For single period manifests we can iterate over all AS and use the maximum segment length\n if (streamInfos && streamInfos.length === 1) {\n const streamInfo = streamInfos[0];\n const mediaTypes = [Constants.VIDEO, Constants.AUDIO, Constants.FRAGMENTED_TEXT];\n\n\n const fragmentDurations = mediaTypes\n .reduce((acc, mediaType) => {\n const mediaInfo = adapter.getMediaInfoForType(streamInfo, mediaType);\n\n if (mediaInfo) {\n acc.push(mediaInfo);\n }\n\n return acc;\n }, [])\n .reduce((acc, mediaInfo) => {\n const voRepresentations = adapter.getVoRepresentations(mediaInfo);\n\n if (voRepresentations && voRepresentations.length > 0) {\n voRepresentations.forEach((voRepresentation) => {\n if (voRepresentation) {\n acc.push(voRepresentation);\n }\n });\n }\n\n return acc;\n }, [])\n .reduce((acc, voRepresentation) => {\n const representation = adapter.convertDataToRepresentationInfo(voRepresentation);\n\n if (representation && representation.fragmentDuration && !isNaN(representation.fragmentDuration)) {\n acc.push(representation.fragmentDuration);\n }\n\n return acc;\n }, []);\n\n fragmentDuration = Math.max(...fragmentDurations);\n }\n\n return isFinite(fragmentDuration) ? fragmentDuration : NaN;\n } catch (e) {\n return NaN;\n }\n }\n\n function onTimeSyncCompleted( /*e*/) {\n const manifest = manifestModel.getValue();\n //TODO check if we can move this to initialize??\n if (protectionController) {\n eventBus.trigger(Events.PROTECTION_CREATED, {\n controller: protectionController,\n manifest: manifest\n });\n protectionController.setMediaElement(videoModel.getElement());\n if (protectionData) {\n protectionController.setProtectionData(protectionData);\n }\n }\n\n composeStreams();\n }\n\n function onManifestUpdated(e) {\n if (!e.error) {\n //Since streams are not composed yet , need to manually look up useCalculatedLiveEdgeTime to detect if stream\n //is SegmentTimeline to avoid using time source\n const manifest = e.manifest;\n adapter.updatePeriods(manifest);\n\n let manifestUTCTimingSources = adapter.getUTCTimingSources();\n let allUTCTimingSources = (!adapter.getIsDynamic()) ? manifestUTCTimingSources : manifestUTCTimingSources.concat(mediaPlayerModel.getUTCTimingSources());\n const isHTTPS = urlUtils.isHTTPS(e.manifest.url);\n\n //If https is detected on manifest then lets apply that protocol to only the default time source(s). In the future we may find the need to apply this to more then just default so left code at this level instead of in MediaPlayer.\n allUTCTimingSources.forEach(function (item) {\n if (item.value.replace(/.*?:\\/\\//g, '') === mediaPlayerModel.getDefaultUtcTimingSource().value.replace(/.*?:\\/\\//g, '')) {\n item.value = item.value.replace(isHTTPS ? new RegExp(/^(http:)?\\/\\//i) : new RegExp(/^(https:)?\\/\\//i), isHTTPS ? 'https://' : 'http://');\n logger.debug('Matching default timing source protocol to manifest protocol: ', item.value);\n }\n });\n\n baseURLController.initialize(manifest);\n\n timeSyncController.setConfig({\n dashMetrics: dashMetrics,\n baseURLController: baseURLController\n });\n timeSyncController.initialize(allUTCTimingSources, settings.get().streaming.useManifestDateHeaderTimeSource);\n } else {\n hasInitialisationError = true;\n reset();\n }\n }\n\n function hasVideoTrack() {\n return activeStream ? activeStream.getHasVideoTrack() : false;\n }\n\n function hasAudioTrack() {\n return activeStream ? activeStream.getHasAudioTrack() : false;\n }\n\n function flushPlaylistMetrics(reason, time) {\n time = time || new Date();\n\n getActiveStreamProcessors().forEach(p => {\n p.finalisePlayList(time, reason);\n });\n dashMetrics.addPlayList();\n }\n\n function createPlaylistMetrics(startReason) {\n dashMetrics.createPlaylistMetrics(playbackController.getTime() * 1000, startReason);\n }\n\n function onPlaybackError(e) {\n if (!e.error) return;\n\n let msg = '';\n\n switch (e.error.code) {\n case 1:\n msg = 'MEDIA_ERR_ABORTED';\n break;\n case 2:\n msg = 'MEDIA_ERR_NETWORK';\n break;\n case 3:\n msg = 'MEDIA_ERR_DECODE';\n break;\n case 4:\n msg = 'MEDIA_ERR_SRC_NOT_SUPPORTED';\n break;\n case 5:\n msg = 'MEDIA_ERR_ENCRYPTED';\n break;\n default:\n msg = 'UNKNOWN';\n break;\n }\n\n hasMediaError = true;\n\n if (e.error.message) {\n msg += ' (' + e.error.message + ')';\n }\n\n if (e.error.msExtendedCode) {\n msg += ' (0x' + (e.error.msExtendedCode >>> 0).toString(16).toUpperCase() + ')';\n }\n\n logger.fatal('Video Element Error: ' + msg);\n if (e.error) {\n logger.fatal(e.error);\n }\n errHandler.error(new DashJSError(e.error.code, msg));\n reset();\n }\n\n function getActiveStreamInfo() {\n return activeStream ? activeStream.getStreamInfo() : null;\n }\n\n function getIsStreamSwitchInProgress() {\n return isStreamSwitchingInProgress;\n }\n\n function getHasMediaOrIntialisationError() {\n return hasMediaError || hasInitialisationError;\n }\n\n function getStreamById(id) {\n return streams.filter(function (item) {\n return item.getId() === id;\n })[0];\n }\n\n function checkConfig() {\n if (!manifestLoader || !manifestLoader.hasOwnProperty('load') || !timelineConverter || !timelineConverter.hasOwnProperty('initialize') ||\n !timelineConverter.hasOwnProperty('reset') || !timelineConverter.hasOwnProperty('getClientTimeOffset') || !manifestModel || !errHandler ||\n !dashMetrics || !playbackController) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function checkInitialize() {\n if (!manifestUpdater || !manifestUpdater.hasOwnProperty('setManifest')) {\n throw new Error('initialize function has to be called previously');\n }\n }\n\n function load(url) {\n checkConfig();\n manifestLoader.load(url);\n }\n\n function loadWithManifest(manifest) {\n checkInitialize();\n manifestUpdater.setManifest(manifest);\n }\n\n function onManifestValidityChanged(e) {\n if (!isNaN(e.newDuration)) {\n setMediaDuration(e.newDuration);\n }\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.capabilities) {\n capabilities = config.capabilities;\n }\n if (config.manifestLoader) {\n manifestLoader = config.manifestLoader;\n }\n if (config.manifestModel) {\n manifestModel = config.manifestModel;\n }\n if (config.mediaPlayerModel) {\n mediaPlayerModel = config.mediaPlayerModel;\n }\n if (config.protectionController) {\n protectionController = config.protectionController;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n if (config.errHandler) {\n errHandler = config.errHandler;\n }\n if (config.timelineConverter) {\n timelineConverter = config.timelineConverter;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n if (config.abrController) {\n abrController = config.abrController;\n }\n if (config.mediaController) {\n mediaController = config.mediaController;\n }\n if (config.textController) {\n textController = config.textController;\n }\n if (config.settings) {\n settings = config.settings;\n }\n if (config.baseURLController) {\n baseURLController = config.baseURLController;\n }\n }\n\n function setProtectionData(protData) {\n protectionData = protData;\n }\n\n function resetInitialSettings() {\n streams = [];\n protectionController = null;\n isStreamSwitchingInProgress = false;\n activeStream = null;\n hasMediaError = false;\n hasInitialisationError = false;\n initialPlayback = true;\n isPaused = false;\n autoPlay = true;\n playbackEndedTimerInterval = null;\n isPeriodSwitchInProgress = false;\n prebufferingCanStartInterval = null;\n preBufferingCheckInProgress = false;\n preloadingStreams = [];\n }\n\n function reset() {\n checkConfig();\n\n timeSyncController.reset();\n\n flushPlaylistMetrics(\n hasMediaError || hasInitialisationError ?\n PlayListTrace.FAILURE_STOP_REASON :\n PlayListTrace.USER_REQUEST_STOP_REASON\n );\n\n for (let i = 0, ln = streams ? streams.length : 0; i < ln; i++) {\n const stream = streams[i];\n stream.reset(hasMediaError);\n }\n\n unRegisterEvents();\n\n baseURLController.reset();\n manifestUpdater.reset();\n eventController.reset();\n dashMetrics.clearAllCurrentMetrics();\n manifestModel.setValue(null);\n manifestLoader.reset();\n timelineConverter.reset();\n initCache.reset();\n\n if (mediaSource) {\n mediaSourceController.detachMediaSource(videoModel);\n mediaSource = null;\n }\n videoModel = null;\n if (protectionController) {\n protectionController.setMediaElement(null);\n protectionController = null;\n protectionData = null;\n if (manifestModel.getValue()) {\n eventBus.trigger(Events.PROTECTION_DESTROYED, { data: manifestModel.getValue().url });\n }\n }\n\n stopPlaybackEndedTimerInterval();\n stopCheckIfPrebufferingCanStartInterval();\n eventBus.trigger(Events.STREAM_TEARDOWN_COMPLETE);\n resetInitialSettings();\n }\n\n function onMetricAdded(e) {\n if (e.metric === MetricsConstants.DVR_INFO) {\n //Match media type? How can DVR window be different for media types?\n //Should we normalize and union the two?\n const targetMediaType = hasAudioTrack() ? Constants.AUDIO : Constants.VIDEO;\n if (e.mediaType === targetMediaType) {\n mediaSourceController.setSeekable(mediaSource, e.value.range.start, e.value.range.end);\n }\n }\n }\n\n function getStreams() {\n return streams;\n }\n\n instance = {\n initialize,\n getActiveStreamInfo,\n hasVideoTrack,\n hasAudioTrack,\n switchToVideoElement,\n getStreamById,\n getStreamForTime,\n getTimeRelativeToStreamId,\n load,\n loadWithManifest,\n getActiveStreamProcessors,\n setConfig,\n setProtectionData,\n getIsStreamSwitchInProgress,\n getHasMediaOrIntialisationError,\n hasStreamFinishedBuffering,\n getStreams,\n getActiveStream,\n reset\n };\n\n setup();\n\n return instance;\n}\n\nStreamController.__dashjs_factory_name = 'StreamController';\nexport default FactoryMaker.getSingletonFactory(StreamController);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport DashJSError from './../vo/DashJSError';\nimport { HTTPRequest } from './../vo/metrics/HTTPRequest';\nimport EventBus from './../../core/EventBus';\nimport Events from './../../core/events/Events';\nimport Errors from './../../core/errors/Errors';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport URLUtils from '../utils/URLUtils';\n\nconst HTTP_TIMEOUT_MS = 5000;\n\nfunction TimeSyncController() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n logger,\n offsetToDeviceTimeMs,\n isSynchronizing,\n useManifestDateHeaderTimeSource,\n handlers,\n dashMetrics,\n baseURLController;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function initialize(timingSources, useManifestDateHeader) {\n useManifestDateHeaderTimeSource = useManifestDateHeader;\n offsetToDeviceTimeMs = 0;\n isSynchronizing = false;\n\n // a list of known schemeIdUris and a method to call with @value\n handlers = {\n 'urn:mpeg:dash:utc:http-head:2014': httpHeadHandler,\n 'urn:mpeg:dash:utc:http-xsdate:2014': httpHandler.bind(null, xsdatetimeDecoder),\n 'urn:mpeg:dash:utc:http-iso:2014': httpHandler.bind(null, iso8601Decoder),\n 'urn:mpeg:dash:utc:direct:2014': directHandler,\n\n // some specs referencing early ISO23009-1 drafts incorrectly use\n // 2012 in the URI, rather than 2014. support these for now.\n 'urn:mpeg:dash:utc:http-head:2012': httpHeadHandler,\n 'urn:mpeg:dash:utc:http-xsdate:2012': httpHandler.bind(null, xsdatetimeDecoder),\n 'urn:mpeg:dash:utc:http-iso:2012': httpHandler.bind(null, iso8601Decoder),\n 'urn:mpeg:dash:utc:direct:2012': directHandler,\n\n // it isn't clear how the data returned would be formatted, and\n // no public examples available so http-ntp not supported for now.\n // presumably you would do an arraybuffer type xhr and decode the\n // binary data returned but I would want to see a sample first.\n 'urn:mpeg:dash:utc:http-ntp:2014': notSupportedHandler,\n\n // not clear how this would be supported in javascript (in browser)\n 'urn:mpeg:dash:utc:ntp:2014': notSupportedHandler,\n 'urn:mpeg:dash:utc:sntp:2014': notSupportedHandler\n };\n\n if (!getIsSynchronizing()) {\n attemptSync(timingSources);\n }\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n\n if (config.baseURLController) {\n baseURLController = config.baseURLController;\n }\n }\n\n function getOffsetToDeviceTimeMs() {\n return getOffsetMs();\n }\n\n function setIsSynchronizing(value) {\n isSynchronizing = value;\n }\n\n function getIsSynchronizing() {\n return isSynchronizing;\n }\n\n function setOffsetMs(value) {\n offsetToDeviceTimeMs = value;\n }\n\n function getOffsetMs() {\n return offsetToDeviceTimeMs;\n }\n\n // takes xsdatetime and returns milliseconds since UNIX epoch\n // may not be necessary as xsdatetime is very similar to ISO 8601\n // which is natively understood by javascript Date parser\n function alternateXsdatetimeDecoder(xsdatetimeStr) {\n // taken from DashParser - should probably refactor both uses\n const SECONDS_IN_MIN = 60;\n const MINUTES_IN_HOUR = 60;\n const MILLISECONDS_IN_SECONDS = 1000;\n let datetimeRegex = /^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2})(?::([0-9]*)(\\.[0-9]*)?)?(?:([+\\-])([0-9]{2})([0-9]{2}))?/;\n\n let utcDate,\n timezoneOffset;\n\n let match = datetimeRegex.exec(xsdatetimeStr);\n\n // If the string does not contain a timezone offset different browsers can interpret it either\n // as UTC or as a local time so we have to parse the string manually to normalize the given date value for\n // all browsers\n utcDate = Date.UTC(\n parseInt(match[1], 10),\n parseInt(match[2], 10) - 1, // months start from zero\n parseInt(match[3], 10),\n parseInt(match[4], 10),\n parseInt(match[5], 10),\n (match[6] && (parseInt(match[6], 10) || 0)),\n (match[7] && parseFloat(match[7]) * MILLISECONDS_IN_SECONDS) || 0\n );\n // If the date has timezone offset take it into account as well\n if (match[9] && match[10]) {\n timezoneOffset = parseInt(match[9], 10) * MINUTES_IN_HOUR + parseInt(match[10], 10);\n utcDate += (match[8] === '+' ? -1 : +1) * timezoneOffset * SECONDS_IN_MIN * MILLISECONDS_IN_SECONDS;\n }\n\n return new Date(utcDate).getTime();\n }\n\n // try to use the built in parser, since xsdate is a constrained ISO8601\n // which is supported natively by Date.parse. if that fails, try a\n // regex-based version used elsewhere in this application.\n function xsdatetimeDecoder(xsdatetimeStr) {\n let parsedDate = Date.parse(xsdatetimeStr);\n\n if (isNaN(parsedDate)) {\n parsedDate = alternateXsdatetimeDecoder(xsdatetimeStr);\n }\n\n return parsedDate;\n }\n\n // takes ISO 8601 timestamp and returns milliseconds since UNIX epoch\n function iso8601Decoder(isoStr) {\n return Date.parse(isoStr);\n }\n\n // takes RFC 1123 timestamp (which is same as ISO8601) and returns\n // milliseconds since UNIX epoch\n function rfc1123Decoder(dateStr) {\n return Date.parse(dateStr);\n }\n\n function notSupportedHandler(url, onSuccessCB, onFailureCB) {\n onFailureCB();\n }\n\n function directHandler(xsdatetimeStr, onSuccessCB, onFailureCB) {\n let time = xsdatetimeDecoder(xsdatetimeStr);\n\n if (!isNaN(time)) {\n onSuccessCB(time);\n return;\n }\n\n onFailureCB();\n }\n\n function httpHandler(decoder, url, onSuccessCB, onFailureCB, isHeadRequest) {\n let oncomplete,\n onload;\n let complete = false;\n let req = new XMLHttpRequest();\n\n let verb = isHeadRequest ? HTTPRequest.HEAD : HTTPRequest.GET;\n let urls = url.match(/\\S+/g);\n\n // according to ISO 23009-1, url could be a white-space\n // separated list of URLs. just handle one at a time.\n url = urls.shift();\n\n oncomplete = function () {\n if (complete) {\n return;\n }\n\n // we only want to pass through here once per xhr,\n // regardless of whether the load was successful.\n complete = true;\n\n // if there are more urls to try, call self.\n if (urls.length) {\n httpHandler(decoder, urls.join(' '), onSuccessCB, onFailureCB, isHeadRequest);\n } else {\n onFailureCB();\n }\n };\n\n onload = function () {\n let time,\n result;\n\n if (req.status === 200) {\n time = isHeadRequest ?\n req.getResponseHeader('Date') :\n req.response;\n\n result = decoder(time);\n\n // decoder returns NaN if non-standard input\n if (!isNaN(result)) {\n onSuccessCB(result);\n complete = true;\n }\n }\n };\n\n if (urlUtils.isRelative(url)) {\n // passing no path to resolve will return just MPD BaseURL/baseUri\n const baseUrl = baseURLController.resolve();\n if (baseUrl) {\n url = urlUtils.resolve(url, baseUrl.url);\n }\n }\n\n req.open(verb, url);\n req.timeout = HTTP_TIMEOUT_MS || 0;\n req.onload = onload;\n req.onloadend = oncomplete;\n req.send();\n }\n\n function httpHeadHandler(url, onSuccessCB, onFailureCB) {\n httpHandler(rfc1123Decoder, url, onSuccessCB, onFailureCB, true);\n }\n\n function checkForDateHeader() {\n let dateHeaderValue = dashMetrics.getLatestMPDRequestHeaderValueByID('Date');\n let dateHeaderTime = dateHeaderValue !== null ? new Date(dateHeaderValue).getTime() : Number.NaN;\n\n if (!isNaN(dateHeaderTime)) {\n setOffsetMs(dateHeaderTime - new Date().getTime());\n completeTimeSyncSequence(false, dateHeaderTime / 1000, offsetToDeviceTimeMs);\n } else {\n completeTimeSyncSequence(true);\n }\n }\n\n function completeTimeSyncSequence(failed, time, offset) {\n setIsSynchronizing(false);\n eventBus.trigger(Events.TIME_SYNCHRONIZATION_COMPLETED, {\n time: time,\n offset: offset,\n error: failed ? new DashJSError(Errors.TIME_SYNC_FAILED_ERROR_CODE, Errors.TIME_SYNC_FAILED_ERROR_MESSAGE) : null\n });\n }\n\n function calculateTimeOffset(serverTime, deviceTime) {\n return serverTime - deviceTime;\n }\n\n function attemptSync(sources, sourceIndex) {\n\n // if called with no sourceIndex, use zero (highest priority)\n let index = sourceIndex || 0;\n\n // the sources should be ordered in priority from the manifest.\n // try each in turn, from the top, until either something\n // sensible happens, or we run out of sources to try.\n let source = sources[index];\n\n // callback to emit event to listeners\n const onComplete = function (time, offset) {\n let failed = !time || !offset;\n if (failed && useManifestDateHeaderTimeSource) {\n //Before falling back to binary search , check if date header exists on MPD. if so, use for a time source.\n checkForDateHeader();\n } else {\n completeTimeSyncSequence(failed, time, offset);\n }\n };\n\n setIsSynchronizing(true);\n\n if (source) {\n // check if there is a handler for this @schemeIdUri\n if (handlers.hasOwnProperty(source.schemeIdUri)) {\n // if so, call it with its @value\n handlers[source.schemeIdUri](\n source.value,\n function (serverTime) {\n // the timing source returned something useful\n const deviceTime = new Date().getTime();\n const offset = calculateTimeOffset(serverTime, deviceTime);\n\n setOffsetMs(offset);\n\n logger.info('Local time: ' + new Date(deviceTime));\n logger.info('Server time: ' + new Date(serverTime));\n logger.info('Server Time - Local Time (ms): ' + offset);\n\n onComplete(serverTime, offset);\n },\n function () {\n // the timing source was probably uncontactable\n // or returned something we can't use - try again\n // with the remaining sources\n attemptSync(sources, index + 1);\n }\n );\n } else {\n // an unknown schemeIdUri must have been found\n // try again with the remaining sources\n attemptSync(sources, index + 1);\n }\n } else {\n // no valid time source could be found, just use device time\n setOffsetMs(0);\n onComplete();\n }\n }\n\n function reset() {\n setIsSynchronizing(false);\n }\n\n instance = {\n initialize: initialize,\n getOffsetToDeviceTimeMs: getOffsetToDeviceTimeMs,\n setConfig: setConfig,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nTimeSyncController.__dashjs_factory_name = 'TimeSyncController';\nconst factory = FactoryMaker.getSingletonFactory(TimeSyncController);\nfactory.HTTP_TIMEOUT_MS = HTTP_TIMEOUT_MS;\nFactoryMaker.updateSingletonFactory(TimeSyncController.__dashjs_factory_name, factory);\nexport default factory;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport XlinkLoader from '../XlinkLoader';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport X2JS from '../../../externals/xml2json';\nimport URLUtils from '../utils/URLUtils';\nimport DashConstants from '../../dash/constants/DashConstants';\n\nconst RESOLVE_TYPE_ONLOAD = 'onLoad';\nconst RESOLVE_TYPE_ONACTUATE = 'onActuate';\nconst RESOLVE_TO_ZERO = 'urn:mpeg:dash:resolve-to-zero:2013';\n\nfunction XlinkController(config) {\n\n config = config || {};\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n matchers,\n iron,\n manifest,\n converter,\n xlinkLoader;\n\n function setup() {\n eventBus.on(Events.XLINK_ELEMENT_LOADED, onXlinkElementLoaded, instance);\n\n xlinkLoader = XlinkLoader(context).create({\n errHandler: config.errHandler,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n settings: config.settings\n });\n }\n\n function setMatchers(value) {\n if (value) {\n matchers = value;\n }\n }\n\n function setIron(value) {\n if (value) {\n iron = value;\n }\n }\n\n /**\n * Triggers the resolution of the xlink.onLoad attributes in the manifest file
\n * @param {Object} mpd - the manifest\n */\n function resolveManifestOnLoad(mpd) {\n let elements;\n // First resolve all periods, so unnecessary requests inside onLoad Periods with Default content are avoided\n converter = new X2JS({\n escapeMode: false,\n attributePrefix: '',\n arrayAccessForm: 'property',\n emptyNodeForm: 'object',\n stripWhitespaces: false,\n enableToStringFunc: false,\n ignoreRoot: true,\n matchers: matchers\n });\n\n manifest = mpd;\n elements = getElementsToResolve(manifest.Period_asArray, manifest, DashConstants.PERIOD, RESOLVE_TYPE_ONLOAD);\n resolve(elements, DashConstants.PERIOD, RESOLVE_TYPE_ONLOAD);\n }\n\n function reset() {\n eventBus.off(Events.XLINK_ELEMENT_LOADED, onXlinkElementLoaded, instance);\n\n if (xlinkLoader) {\n xlinkLoader.reset();\n xlinkLoader = null;\n }\n }\n\n function resolve(elements, type, resolveType) {\n let resolveObject = {};\n let element,\n url;\n\n resolveObject.elements = elements;\n resolveObject.type = type;\n resolveObject.resolveType = resolveType;\n // If nothing to resolve, directly call allElementsLoaded\n if (resolveObject.elements.length === 0) {\n onXlinkAllElementsLoaded(resolveObject);\n }\n for (let i = 0; i < resolveObject.elements.length; i++) {\n element = resolveObject.elements[i];\n if (urlUtils.isHTTPURL(element.url)) {\n url = element.url;\n } else {\n url = element.originalContent.BaseURL + element.url;\n }\n xlinkLoader.load(url, element, resolveObject);\n }\n }\n\n function onXlinkElementLoaded(event) {\n let element,\n resolveObject;\n\n const openingTag = '';\n const closingTag = ' ';\n let mergedContent = '';\n\n element = event.element;\n resolveObject = event.resolveObject;\n // if the element resolved into content parse the content\n if (element.resolvedContent) {\n let index = 0;\n // we add a parent elements so the converter is able to parse multiple elements of the same type which are not wrapped inside a container\n if (element.resolvedContent.indexOf('') + 2; //find the closing position of the xml declaration, if it exists.\n }\n mergedContent = element.resolvedContent.substr(0,index) + openingTag + element.resolvedContent.substr(index) + closingTag;\n element.resolvedContent = converter.xml_str2json(mergedContent);\n }\n if (isResolvingFinished(resolveObject)) {\n onXlinkAllElementsLoaded(resolveObject);\n }\n }\n\n // We got to wait till all elements of the current queue are resolved before merging back\n function onXlinkAllElementsLoaded (resolveObject) {\n let elements = [];\n let i,\n obj;\n\n mergeElementsBack(resolveObject);\n if (resolveObject.resolveType === RESOLVE_TYPE_ONACTUATE) {\n eventBus.trigger(Events.XLINK_READY, { manifest: manifest });\n }\n if (resolveObject.resolveType === RESOLVE_TYPE_ONLOAD) {\n switch (resolveObject.type) {\n // Start resolving the other elements. We can do Adaptation Set and EventStream in parallel\n case DashConstants.PERIOD:\n for (i = 0; i < manifest[DashConstants.PERIOD + '_asArray'].length; i++) {\n obj = manifest[DashConstants.PERIOD + '_asArray'][i];\n if (obj.hasOwnProperty(DashConstants.ADAPTATION_SET + '_asArray')) {\n elements = elements.concat(getElementsToResolve(obj[DashConstants.ADAPTATION_SET + '_asArray'], obj, DashConstants.ADAPTATION_SET, RESOLVE_TYPE_ONLOAD));\n }\n if (obj.hasOwnProperty(DashConstants.EVENT_STREAM + '_asArray')) {\n elements = elements.concat(getElementsToResolve(obj[DashConstants.EVENT_STREAM + '_asArray'], obj, DashConstants.EVENT_STREAM, RESOLVE_TYPE_ONLOAD));\n }\n }\n resolve(elements, DashConstants.ADAPTATION_SET, RESOLVE_TYPE_ONLOAD);\n break;\n case DashConstants.ADAPTATION_SET:\n // TODO: Resolve SegmentList here\n eventBus.trigger(Events.XLINK_READY, { manifest: manifest });\n break;\n }\n }\n }\n\n // Returns the elements with the specific resolve Type\n function getElementsToResolve(elements, parentElement, type, resolveType) {\n let toResolve = [];\n let element,\n i,\n xlinkObject;\n // first remove all the resolve-to-zero elements\n for (i = elements.length - 1; i >= 0; i--) {\n element = elements[i];\n if (element.hasOwnProperty('xlink:href') && element['xlink:href'] === RESOLVE_TO_ZERO) {\n elements.splice(i, 1);\n }\n }\n // now get the elements with the right resolve type\n for (i = 0; i < elements.length; i++) {\n element = elements[i];\n if (element.hasOwnProperty('xlink:href') && element.hasOwnProperty('xlink:actuate') && element['xlink:actuate'] === resolveType) {\n xlinkObject = createXlinkObject(element['xlink:href'], parentElement, type, i, resolveType, element);\n toResolve.push(xlinkObject);\n }\n }\n return toResolve;\n }\n\n function mergeElementsBack(resolveObject) {\n let resolvedElements = [];\n let element,\n type,\n obj,\n i,\n j,\n k;\n // Start merging back from the end because of index shifting. Note that the elements with the same parent have to be ordered by index ascending\n for (i = resolveObject.elements.length - 1; i >= 0; i --) {\n element = resolveObject.elements[i];\n type = element.type + '_asArray';\n\n // Element couldn't be resolved or is TODO Inappropriate target: Remove all Xlink attributes\n if (!element.resolvedContent || isInappropriateTarget()) {\n delete element.originalContent['xlink:actuate'];\n delete element.originalContent['xlink:href'];\n resolvedElements.push(element.originalContent);\n }\n // Element was successfully resolved\n else if (element.resolvedContent) {\n for (j = 0; j < element.resolvedContent[type].length; j++) {\n //TODO Contains another Xlink attribute with xlink:actuate set to onload. Remove all xLink attributes\n obj = element.resolvedContent[type][j];\n resolvedElements.push(obj);\n }\n }\n // Replace the old elements in the parent with the resolved ones\n element.parentElement[type].splice(element.index, 1);\n for (k = 0; k < resolvedElements.length; k++) {\n element.parentElement[type].splice(element.index + k, 0, resolvedElements[k]);\n }\n resolvedElements = [];\n }\n if (resolveObject.elements.length > 0) {\n iron.run(manifest);\n }\n }\n\n function createXlinkObject(url, parentElement, type, index, resolveType, originalContent) {\n return {\n url: url,\n parentElement: parentElement,\n type: type,\n index: index,\n resolveType: resolveType,\n originalContent: originalContent,\n resolvedContent: null,\n resolved: false\n };\n }\n\n // Check if all pending requests are finished\n function isResolvingFinished(elementsToResolve) {\n let i,\n obj;\n for (i = 0; i < elementsToResolve.elements.length; i++) {\n obj = elementsToResolve.elements[i];\n if (obj.resolved === false) {\n return false;\n }\n }\n return true;\n }\n\n // TODO : Do some syntax check here if the target is valid or not\n function isInappropriateTarget() {\n return false;\n }\n\n instance = {\n resolveManifestOnLoad: resolveManifestOnLoad,\n setMatchers: setMatchers,\n setIron: setIron,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nXlinkController.__dashjs_factory_name = 'XlinkController';\nexport default FactoryMaker.getClassFactory(XlinkController);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport Stream from '../Stream';\nimport ManifestUpdater from '../ManifestUpdater';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport {\n PlayList,\n PlayListTrace\n} from '../vo/metrics/PlayList';\nimport Debug from '../../core/Debug';\nimport InitCache from '../utils/InitCache';\nimport URLUtils from '../utils/URLUtils';\nimport MediaPlayerEvents from '../MediaPlayerEvents';\nimport TimeSyncController from './TimeSyncController';\nimport MediaSourceController from './MediaSourceController';\nimport DashJSError from '../vo/DashJSError';\nimport Errors from '../../core/errors/Errors';\nimport EventController from './EventController';\nimport ConformanceViolationConstants from '../constants/ConformanceViolationConstants';\n\nconst PLAYBACK_ENDED_TIMER_INTERVAL = 200;\nconst PREBUFFERING_CAN_START_INTERVAL = 500;\n\nfunction StreamController() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n capabilities,\n capabilitiesFilter,\n manifestUpdater,\n manifestLoader,\n manifestModel,\n adapter,\n dashMetrics,\n mediaSourceController,\n timeSyncController,\n baseURLController,\n abrController,\n mediaController,\n eventController,\n textController,\n initCache,\n urlUtils,\n errHandler,\n timelineConverter,\n streams,\n activeStream,\n protectionController,\n protectionData,\n autoPlay,\n isStreamSwitchingInProgress,\n hasMediaError,\n hasInitialisationError,\n mediaSource,\n videoModel,\n playbackController,\n mediaPlayerModel,\n isPaused,\n initialPlayback,\n isPeriodSwitchInProgress,\n playbackEndedTimerInterval,\n prebufferingCanStartInterval,\n buffers,\n preloadingStreams,\n supportsChangeType,\n settings,\n preBufferingCheckInProgress;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n timeSyncController = TimeSyncController(context).getInstance();\n mediaSourceController = MediaSourceController(context).getInstance();\n initCache = InitCache(context).getInstance();\n urlUtils = URLUtils(context).getInstance();\n\n resetInitialSettings();\n }\n\n function initialize(autoPl, protData) {\n checkConfig();\n\n autoPlay = autoPl;\n protectionData = protData;\n timelineConverter.initialize();\n\n manifestUpdater = ManifestUpdater(context).create();\n manifestUpdater.setConfig({\n manifestModel: manifestModel,\n adapter: adapter,\n manifestLoader: manifestLoader,\n errHandler: errHandler,\n settings: settings\n });\n manifestUpdater.initialize();\n\n eventController = EventController(context).getInstance();\n eventController.setConfig({\n manifestUpdater: manifestUpdater,\n playbackController: playbackController\n });\n eventController.start();\n\n\n timeSyncController.setConfig({\n dashMetrics,\n baseURLController,\n settings\n });\n timeSyncController.initialize();\n registerEvents();\n }\n\n function registerEvents() {\n eventBus.on(Events.PLAYBACK_TIME_UPDATED, onPlaybackTimeUpdated, instance);\n eventBus.on(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.on(Events.GAP_CAUSED_SEEK_TO_PERIOD_END, onGapCausedPlaybackSeek, instance);\n eventBus.on(Events.PLAYBACK_ERROR, onPlaybackError, instance);\n eventBus.on(Events.PLAYBACK_STARTED, onPlaybackStarted, instance);\n eventBus.on(Events.PLAYBACK_PAUSED, onPlaybackPaused, instance);\n eventBus.on(Events.PLAYBACK_ENDED, onEnded, instance, { priority: EventBus.EVENT_PRIORITY_HIGH });\n eventBus.on(Events.MANIFEST_UPDATED, onManifestUpdated, instance);\n eventBus.on(Events.STREAM_BUFFERING_COMPLETED, onStreamBufferingCompleted, instance);\n eventBus.on(Events.MANIFEST_VALIDITY_CHANGED, onManifestValidityChanged, instance);\n eventBus.on(Events.TIME_SYNCHRONIZATION_COMPLETED, onTimeSyncCompleted, instance);\n eventBus.on(MediaPlayerEvents.METRIC_ADDED, onMetricAdded, instance);\n }\n\n function unRegisterEvents() {\n eventBus.off(Events.PLAYBACK_TIME_UPDATED, onPlaybackTimeUpdated, instance);\n eventBus.off(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.off(Events.GAP_CAUSED_SEEK_TO_PERIOD_END, onGapCausedPlaybackSeek, instance);\n eventBus.off(Events.PLAYBACK_ERROR, onPlaybackError, instance);\n eventBus.off(Events.PLAYBACK_STARTED, onPlaybackStarted, instance);\n eventBus.off(Events.PLAYBACK_PAUSED, onPlaybackPaused, instance);\n eventBus.off(Events.PLAYBACK_ENDED, onEnded, instance);\n eventBus.off(Events.MANIFEST_UPDATED, onManifestUpdated, instance);\n eventBus.off(Events.STREAM_BUFFERING_COMPLETED, onStreamBufferingCompleted, instance);\n eventBus.off(Events.MANIFEST_VALIDITY_CHANGED, onManifestValidityChanged, instance);\n eventBus.off(Events.TIME_SYNCHRONIZATION_COMPLETED, onTimeSyncCompleted, instance);\n eventBus.off(MediaPlayerEvents.METRIC_ADDED, onMetricAdded, instance);\n }\n\n /*\n * Called when current playback position is changed.\n * Used to determine the time current stream is finished and we should switch to the next stream.\n */\n function onPlaybackTimeUpdated(/*e*/) {\n if (hasVideoTrack()) {\n const playbackQuality = videoModel.getPlaybackQuality();\n if (playbackQuality) {\n dashMetrics.addDroppedFrames(playbackQuality);\n }\n }\n }\n\n function onPlaybackSeeking(e) {\n const seekingStream = getStreamForTime(e.seekTime);\n\n if (seekingStream === activeStream && preloadingStreams && preloadingStreams.length > 0) {\n // Seeking to the current period was requested while preloading the next one, deactivate preloading one\n preloadingStreams.forEach((s) => {\n s.deactivate(true);\n });\n }\n\n if (seekingStream && seekingStream !== activeStream) {\n // If we're preloading other stream, the active one was deactivated and we need to switch back\n flushPlaylistMetrics(PlayListTrace.END_OF_PERIOD_STOP_REASON);\n switchStream(seekingStream, activeStream, e.seekTime);\n } else {\n flushPlaylistMetrics(PlayListTrace.USER_REQUEST_STOP_REASON);\n }\n\n createPlaylistMetrics(PlayList.SEEK_START_REASON);\n }\n\n function onGapCausedPlaybackSeek(e) {\n const nextStream = getNextStream();\n flushPlaylistMetrics(PlayListTrace.END_OF_PERIOD_STOP_REASON);\n switchStream(nextStream, activeStream, e.seekTime);\n createPlaylistMetrics(PlayList.SEEK_START_REASON);\n }\n\n function onPlaybackStarted( /*e*/) {\n logger.debug('[onPlaybackStarted]');\n if (initialPlayback) {\n initialPlayback = false;\n createPlaylistMetrics(PlayList.INITIAL_PLAYOUT_START_REASON);\n } else {\n if (isPaused) {\n isPaused = false;\n createPlaylistMetrics(PlayList.RESUME_FROM_PAUSE_START_REASON);\n }\n }\n }\n\n function onPlaybackPaused(e) {\n logger.debug('[onPlaybackPaused]');\n if (!e.ended) {\n isPaused = true;\n flushPlaylistMetrics(PlayListTrace.USER_REQUEST_STOP_REASON);\n }\n }\n\n function startPlaybackEndedTimerInterval() {\n if (!playbackEndedTimerInterval) {\n playbackEndedTimerInterval = setInterval(function () {\n if (!isStreamSwitchingInProgress && playbackController.getTimeToStreamEnd() <= 0) {\n eventBus.trigger(Events.PLAYBACK_ENDED, { 'isLast': getActiveStreamInfo().isLast });\n }\n }, PLAYBACK_ENDED_TIMER_INTERVAL);\n }\n }\n\n function stopPlaybackEndedTimerInterval() {\n if (playbackEndedTimerInterval) {\n clearInterval(playbackEndedTimerInterval);\n playbackEndedTimerInterval = null;\n }\n }\n\n function startCheckIfPrebufferingCanStartInterval() {\n if (!prebufferingCanStartInterval) {\n prebufferingCanStartInterval = setInterval(function () {\n checkIfPrebufferingCanStart();\n }, PREBUFFERING_CAN_START_INTERVAL);\n }\n }\n\n function stopCheckIfPrebufferingCanStartInterval() {\n clearInterval(prebufferingCanStartInterval);\n prebufferingCanStartInterval = null;\n }\n\n function checkIfPrebufferingCanStart() {\n // In multiperiod situations, we constantly check if the streams have finished buffering so we can immediately start buffering the next stream\n if (!activeStream || !hasStreamFinishedBuffering(activeStream)) {\n return;\n }\n const upcomingStreams = getNextStreams(activeStream);\n let i = 0;\n\n while (i < upcomingStreams.length) {\n const stream = upcomingStreams[i];\n const previousStream = i === 0 ? activeStream : upcomingStreams[i - 1];\n // If the preloading for the current stream is not scheduled, but its predecessor has finished buffering we can start prebuffering this stream\n if (!stream.getPreloadingScheduled() && (hasStreamFinishedBuffering(previousStream))) {\n\n if (mediaSource) {\n // We can not start prebuffering if the start of the next period is in the future. This will cause problems when calculating the segmentAvailabilityRange and updating the representations in the RepresentationController\n // As long as the timeline converter returns an invalid range we do not start the prebuffering\n const mediaTypes = [Constants.VIDEO, Constants.AUDIO];\n let segmentAvailabilityRangeIsOk = true;\n\n mediaTypes.forEach((mediaType) => {\n const mediaInfo = adapter.getMediaInfoForType(stream.getStreamInfo(), mediaType);\n const voRepresentations = adapter.getVoRepresentations(mediaInfo);\n voRepresentations.forEach((voRep) => {\n const isDynamic = adapter.getIsDynamic();\n const range = timelineConverter.calcSegmentAvailabilityRange(voRep, isDynamic);\n\n if (range.end < range.start) {\n segmentAvailabilityRangeIsOk = false;\n }\n });\n });\n\n if (segmentAvailabilityRangeIsOk) {\n onStreamCanLoadNext(stream, previousStream);\n }\n }\n }\n i += 1;\n }\n }\n\n function hasStreamFinishedBuffering(stream) {\n try {\n if (!stream) {\n return false;\n }\n const streamProcessors = stream.getProcessors().filter((sp) => {\n return sp.getType() === Constants.AUDIO || sp.getType() === Constants.VIDEO;\n });\n\n if (!streamProcessors || streamProcessors.length === 0) {\n return false;\n }\n\n const unfinishedStreamProcessors = streamProcessors.filter((sp) => {\n return !sp.isBufferingCompleted();\n });\n\n return unfinishedStreamProcessors && unfinishedStreamProcessors.length === 0;\n\n } catch (e) {\n return false;\n }\n }\n\n function onStreamBufferingCompleted() {\n const isLast = getActiveStreamInfo().isLast;\n if (mediaSource && isLast) {\n logger.info('[onStreamBufferingCompleted] calls signalEndOfStream of mediaSourceController.');\n mediaSourceController.signalEndOfStream(mediaSource);\n }\n }\n\n function canSourceBuffersBeReused(nextStream, previousStream) {\n try {\n return (settings.get().streaming.reuseExistingSourceBuffers && previousStream.isProtectionCompatible(nextStream, previousStream) &&\n (supportsChangeType || previousStream.isMediaCodecCompatible(nextStream, previousStream)) && !hasCriticalTexttracks(nextStream));\n } catch (e) {\n return false;\n }\n }\n\n function onStreamCanLoadNext(nextStream, previousStream = null) {\n\n if (mediaSource && !nextStream.getPreloaded()) {\n // Seamless period switch allowed only if:\n // - none of the periods uses contentProtection.\n // - AND changeType method implemented by browser or periods use the same codec.\n let seamlessPeriodSwitch = canSourceBuffersBeReused(nextStream, previousStream);\n\n if (seamlessPeriodSwitch) {\n nextStream.setPreloadingScheduled(true);\n logger.info(`[onStreamCanLoadNext] Preloading next stream with id ${nextStream.getId()}`);\n isPeriodSwitchInProgress = true;\n nextStream.preload(mediaSource, buffers);\n preloadingStreams.push(nextStream);\n nextStream.getProcessors().forEach(p => {\n p.setBufferingTime(nextStream.getStartTime());\n });\n }\n }\n }\n\n function hasCriticalTexttracks(stream) {\n try {\n // if the upcoming stream has stpp or wvtt texttracks we need to reset the sourcebuffers and can not prebuffer\n const streamInfo = stream.getStreamInfo();\n const as = adapter.getAdaptationForType(streamInfo.index, Constants.FRAGMENTED_TEXT, streamInfo);\n if (!as) {\n return false;\n }\n\n return (as.codecs.indexOf('stpp') !== -1) || (as.codecs.indexOf('wvtt') !== -1);\n } catch (e) {\n return false;\n }\n }\n\n function getStreamForTime(time) {\n\n if (isNaN(time)) {\n return null;\n }\n\n let streamDuration = 0;\n let stream = null;\n\n const ln = streams.length;\n\n if (ln > 0) {\n streamDuration += streams[0].getStartTime();\n }\n\n for (let i = 0; i < ln; i++) {\n stream = streams[i];\n streamDuration = parseFloat((streamDuration + stream.getDuration()).toFixed(5));\n\n if (time < streamDuration) {\n return stream;\n }\n }\n\n return null;\n }\n\n /**\n * Returns a playhead time, in seconds, converted to be relative\n * to the start of an identified stream/period or null if no such stream\n * @param {number} time\n * @param {string} id\n * @returns {number|null}\n */\n function getTimeRelativeToStreamId(time, id) {\n let stream = null;\n let baseStart = 0;\n let streamStart = 0;\n let streamDur = null;\n\n for (let i = 0; i < streams.length; i++) {\n stream = streams[i];\n streamStart = stream.getStartTime();\n streamDur = stream.getDuration();\n\n // use start time, if not undefined or NaN or similar\n if (Number.isFinite(streamStart)) {\n baseStart = streamStart;\n }\n\n if (stream.getId() === id) {\n return time - baseStart;\n } else {\n // use duration if not undefined or NaN or similar\n if (Number.isFinite(streamDur)) {\n baseStart += streamDur;\n }\n }\n }\n\n return null;\n }\n\n function getActiveStreamProcessors() {\n return activeStream ? activeStream.getProcessors() : [];\n }\n\n function onEnded(e) {\n if (!activeStream.getIsEndedEventSignaled()) {\n activeStream.setIsEndedEventSignaled(true);\n const nextStream = getNextStream();\n if (nextStream) {\n logger.debug(`StreamController onEnded, found next stream with id ${nextStream.getStreamInfo().id}`);\n switchStream(nextStream, activeStream, NaN);\n } else {\n logger.debug('StreamController no next stream found');\n activeStream.setIsEndedEventSignaled(false);\n }\n flushPlaylistMetrics(nextStream ? PlayListTrace.END_OF_PERIOD_STOP_REASON : PlayListTrace.END_OF_CONTENT_STOP_REASON);\n isPeriodSwitchInProgress = false;\n }\n if (e && e.isLast) {\n stopPlaybackEndedTimerInterval();\n }\n }\n\n function getNextStream(stream = null) {\n const refStream = stream ? stream : activeStream ? activeStream : null;\n if (refStream) {\n const start = refStream.getStreamInfo().start;\n const duration = refStream.getStreamInfo().duration;\n const streamEnd = parseFloat((start + duration).toFixed(5));\n\n let i = 0;\n let targetIndex = -1;\n let lastDiff = NaN;\n while (i < streams.length) {\n const s = streams[i];\n const diff = s.getStreamInfo().start - streamEnd;\n\n if (diff >= 0 && (isNaN(lastDiff) || diff < lastDiff)) {\n lastDiff = diff;\n targetIndex = i;\n }\n\n i += 1;\n }\n\n if (targetIndex >= 0) {\n return streams[targetIndex];\n }\n\n return null;\n }\n\n return null;\n }\n\n function getNextStreams(stream) {\n try {\n const refStream = stream ? stream : activeStream ? activeStream : null;\n\n if (refStream) {\n const start = refStream.getStreamInfo().start;\n\n return streams.filter(function (stream) {\n return (stream.getStreamInfo().start > start);\n });\n }\n } catch (e) {\n return [];\n }\n }\n\n function switchStream(stream, previousStream, seekTime) {\n\n if (isStreamSwitchingInProgress || !stream || (previousStream === stream && stream.isActive())) return;\n isStreamSwitchingInProgress = true;\n\n eventBus.trigger(Events.PERIOD_SWITCH_STARTED, {\n fromStreamInfo: previousStream ? previousStream.getStreamInfo() : null,\n toStreamInfo: stream.getStreamInfo()\n });\n\n let seamlessPeriodSwitch = false;\n if (previousStream) {\n seamlessPeriodSwitch = canSourceBuffersBeReused(stream, previousStream);\n previousStream.deactivate(seamlessPeriodSwitch);\n }\n\n // Determine seek time when switching to new period\n // - seek at given seek time\n // - or seek at period start if upcoming period is not prebuffered\n seekTime = !isNaN(seekTime) ? seekTime : (!seamlessPeriodSwitch && previousStream ? stream.getStreamInfo().start : NaN);\n logger.info(`Switch to stream ${stream.getId()}. Seektime is ${seekTime}, current playback time is ${playbackController.getTime()}`);\n logger.info(`Seamless period switch is set to ${seamlessPeriodSwitch}`);\n\n activeStream = stream;\n preloadingStreams = preloadingStreams.filter((s) => {\n return s.getId() !== activeStream.getId();\n });\n playbackController.initialize(getActiveStreamInfo(), !!previousStream, seekTime);\n if (videoModel.getElement()) {\n openMediaSource(seekTime, (previousStream === null), false, seamlessPeriodSwitch);\n } else {\n activateStream(seekTime, seamlessPeriodSwitch);\n }\n isPeriodSwitchInProgress = false;\n }\n\n function switchToVideoElement(seekTime) {\n if (activeStream) {\n playbackController.initialize(getActiveStreamInfo());\n openMediaSource(seekTime, false, true, false);\n }\n }\n\n function openMediaSource(seekTime, sourceInitialized, streamActivated, keepBuffers) {\n let sourceUrl;\n\n function onMediaSourceOpen() {\n // Manage situations in which a call to reset happens while MediaSource is being opened\n if (!mediaSource || mediaSource.readyState !== 'open') return;\n\n logger.debug('MediaSource is open!');\n window.URL.revokeObjectURL(sourceUrl);\n mediaSource.removeEventListener('sourceopen', onMediaSourceOpen);\n mediaSource.removeEventListener('webkitsourceopen', onMediaSourceOpen);\n setMediaDuration();\n\n if (!sourceInitialized) {\n eventBus.trigger(Events.SOURCE_INITIALIZED);\n }\n\n if (streamActivated) {\n activeStream.setMediaSource(mediaSource);\n } else {\n activateStream(seekTime, keepBuffers);\n }\n }\n\n if (!mediaSource) {\n mediaSource = mediaSourceController.createMediaSource();\n mediaSource.addEventListener('sourceopen', onMediaSourceOpen, false);\n mediaSource.addEventListener('webkitsourceopen', onMediaSourceOpen, false);\n sourceUrl = mediaSourceController.attachMediaSource(mediaSource, videoModel);\n logger.debug('MediaSource attached to element. Waiting on open...');\n } else {\n if (keepBuffers) {\n activateStream(seekTime, keepBuffers);\n if (!sourceInitialized) {\n eventBus.trigger(Events.SOURCE_INITIALIZED);\n }\n } else {\n mediaSourceController.detachMediaSource(videoModel);\n mediaSource.addEventListener('sourceopen', onMediaSourceOpen, false);\n mediaSource.addEventListener('webkitsourceopen', onMediaSourceOpen, false);\n sourceUrl = mediaSourceController.attachMediaSource(mediaSource, videoModel);\n logger.debug('MediaSource attached to element. Waiting on open...');\n }\n }\n }\n\n function getActiveStream() {\n return activeStream;\n }\n\n function activateStream(seekTime, keepBuffers) {\n buffers = activeStream.activate(mediaSource, keepBuffers ? buffers : undefined);\n\n // check if change type is supported by the browser\n if (buffers) {\n const keys = Object.keys(buffers);\n if (keys.length > 0 && buffers[keys[0]].changeType) {\n supportsChangeType = true;\n }\n }\n\n if (!initialPlayback) {\n if (!isNaN(seekTime)) {\n // If the streamswitch has been triggered by a seek command there is no need to seek again. Still we need to trigger the seeking event in order for the controllers to adjust the new time\n if (seekTime === playbackController.getTime()) {\n eventBus.trigger(Events.SEEK_TARGET, { time: seekTime }, { streamId: activeStream.getId() });\n } else {\n playbackController.seek(seekTime);\n }\n }\n }\n\n if (autoPlay || !initialPlayback) {\n playbackController.play();\n }\n\n isStreamSwitchingInProgress = false;\n eventBus.trigger(Events.PERIOD_SWITCH_COMPLETED, { toStreamInfo: getActiveStreamInfo() });\n }\n\n function setMediaDuration(duration) {\n const manifestDuration = duration ? duration : getActiveStreamInfo().manifestInfo.duration;\n mediaSourceController.setDuration(mediaSource, manifestDuration);\n }\n\n function getComposedStream(streamInfo) {\n for (let i = 0, ln = streams.length; i < ln; i++) {\n if (streams[i].getId() === streamInfo.id) {\n return streams[i];\n }\n }\n return null;\n }\n\n function composeStreams() {\n try {\n const streamsInfo = adapter.getStreamsInfo();\n if (streamsInfo.length === 0) {\n throw new Error('There are no streams');\n }\n\n dashMetrics.updateManifestUpdateInfo({\n currentTime: playbackController.getTime(),\n buffered: videoModel.getBufferRange(),\n presentationStartTime: streamsInfo[0].start,\n clientTimeOffset: timelineConverter.getClientTimeOffset()\n });\n\n // Filter streams that are outdated and not included in the MPD anymore\n if (streams.length > 0) {\n streams = streams.filter((stream) => {\n\n const isStillIncluded = streamsInfo.filter((sInfo) => {\n return sInfo.id === stream.getId();\n }).length > 0;\n\n const shouldKeepStream = isStillIncluded || stream.getId() === activeStream.getId();\n\n if (!shouldKeepStream) {\n logger.debug(`Removing stream ${stream.getId()}`);\n }\n\n return shouldKeepStream;\n });\n }\n\n for (let i = 0, ln = streamsInfo.length; i < ln; i++) {\n // If the Stream object does not exist we probably loaded the manifest the first time or it was\n // introduced in the updated manifest, so we need to create a new Stream and perform all the initialization operations\n const streamInfo = streamsInfo[i];\n let stream = getComposedStream(streamInfo);\n\n if (!stream) {\n stream = Stream(context).create({\n manifestModel: manifestModel,\n mediaPlayerModel: mediaPlayerModel,\n dashMetrics: dashMetrics,\n manifestUpdater: manifestUpdater,\n adapter: adapter,\n timelineConverter: timelineConverter,\n capabilities: capabilities,\n capabilitiesFilter,\n errHandler: errHandler,\n baseURLController: baseURLController,\n abrController: abrController,\n playbackController: playbackController,\n eventController: eventController,\n mediaController: mediaController,\n textController: textController,\n protectionController: protectionController,\n videoModel: videoModel,\n streamInfo: streamInfo,\n settings: settings\n });\n streams.push(stream);\n stream.initialize();\n } else {\n stream.updateData(streamInfo);\n }\n\n dashMetrics.addManifestUpdateStreamInfo(streamInfo);\n }\n\n if (!activeStream) {\n if (adapter.getIsDynamic() && streams.length) {\n // Compute and set live delay\n const manifestInfo = streamsInfo[0].manifestInfo;\n const fragmentDuration = getFragmentDurationForLiveDelayCalculation(streamsInfo, manifestInfo);\n playbackController.computeAndSetLiveDelay(fragmentDuration, manifestInfo.DVRWindowSize, manifestInfo.minBufferTime);\n }\n\n // we need to figure out what the correct starting period is\n let initialStream = null;\n const startTimeFromUri = playbackController.getStartTimeFromUriParameters(adapter.getIsDynamic());\n\n initialStream = getStreamForTime(startTimeFromUri);\n\n // For multiperiod streams we should avoid a switch of streams after the seek to the live edge. So we do a calculation of the expected seek time to find the right stream object.\n if (!initialStream && adapter.getIsDynamic() && streams.length) {\n logger.debug('Dynamic stream: Trying to find the correct starting period');\n initialStream = getInitialStream();\n }\n const startStream = initialStream !== null ? initialStream : streams[0];\n switchStream(startStream, null, NaN);\n startPlaybackEndedTimerInterval();\n startCheckIfPrebufferingCanStartInterval();\n }\n\n eventBus.trigger(Events.STREAMS_COMPOSED);\n\n } catch (e) {\n errHandler.error(new DashJSError(Errors.MANIFEST_ERROR_ID_NOSTREAMS_CODE, e.message + 'nostreamscomposed', manifestModel.getValue()));\n hasInitialisationError = true;\n reset();\n }\n }\n\n function getInitialStream() {\n try {\n const liveEdge = timelineConverter.calcPresentationTimeFromWallTime(new Date(), adapter.getRegularPeriods()[0]);\n const targetDelay = playbackController.getLiveDelay();\n const targetTime = liveEdge - targetDelay;\n\n return getStreamForTime(targetTime);\n } catch (e) {\n return null;\n }\n }\n\n function getFragmentDurationForLiveDelayCalculation(streamInfos, manifestInfo) {\n try {\n let fragmentDuration = NaN;\n\n // We use the maxFragmentDuration attribute if present\n if (manifestInfo && !isNaN(manifestInfo.maxFragmentDuration) && isFinite(manifestInfo.maxFragmentDuration)) {\n return manifestInfo.maxFragmentDuration;\n }\n\n // For single period manifests we can iterate over all AS and use the maximum segment length\n if (streamInfos && streamInfos.length === 1) {\n const streamInfo = streamInfos[0];\n const mediaTypes = [Constants.VIDEO, Constants.AUDIO, Constants.FRAGMENTED_TEXT];\n\n\n const fragmentDurations = mediaTypes\n .reduce((acc, mediaType) => {\n const mediaInfo = adapter.getMediaInfoForType(streamInfo, mediaType);\n\n if (mediaInfo) {\n acc.push(mediaInfo);\n }\n\n return acc;\n }, [])\n .reduce((acc, mediaInfo) => {\n const voRepresentations = adapter.getVoRepresentations(mediaInfo);\n\n if (voRepresentations && voRepresentations.length > 0) {\n voRepresentations.forEach((voRepresentation) => {\n if (voRepresentation) {\n acc.push(voRepresentation);\n }\n });\n }\n\n return acc;\n }, [])\n .reduce((acc, voRepresentation) => {\n const representation = adapter.convertDataToRepresentationInfo(voRepresentation);\n\n if (representation && representation.fragmentDuration && !isNaN(representation.fragmentDuration)) {\n acc.push(representation.fragmentDuration);\n }\n\n return acc;\n }, []);\n\n fragmentDuration = Math.max(...fragmentDurations);\n }\n\n return isFinite(fragmentDuration) ? fragmentDuration : NaN;\n } catch (e) {\n return NaN;\n }\n }\n\n function onTimeSyncCompleted( /*e*/) {\n const manifest = manifestModel.getValue();\n //TODO check if we can move this to initialize??\n if (protectionController) {\n eventBus.trigger(Events.PROTECTION_CREATED, {\n controller: protectionController,\n manifest: manifest\n });\n protectionController.setMediaElement(videoModel.getElement());\n if (protectionData) {\n protectionController.setProtectionData(protectionData);\n }\n }\n\n composeStreams();\n }\n\n function onManifestUpdated(e) {\n if (!e.error) {\n //Since streams are not composed yet , need to manually look up useCalculatedLiveEdgeTime to detect if stream\n //is SegmentTimeline to avoid using time source\n const manifest = e.manifest;\n adapter.updatePeriods(manifest);\n\n let manifestUTCTimingSources = adapter.getUTCTimingSources();\n\n if (adapter.getIsDynamic() && (!manifestUTCTimingSources || manifestUTCTimingSources.length === 0)) {\n eventBus.trigger(MediaPlayerEvents.CONFORMANCE_VIOLATION, {\n level: ConformanceViolationConstants.LEVELS.WARNING,\n event: ConformanceViolationConstants.EVENTS.NO_UTC_TIMING_ELEMENT\n });\n }\n\n let allUTCTimingSources = (!adapter.getIsDynamic()) ? manifestUTCTimingSources : manifestUTCTimingSources.concat(mediaPlayerModel.getUTCTimingSources());\n const isHTTPS = urlUtils.isHTTPS(e.manifest.url);\n\n //If https is detected on manifest then lets apply that protocol to only the default time source(s). In the future we may find the need to apply this to more then just default so left code at this level instead of in MediaPlayer.\n allUTCTimingSources.forEach(function (item) {\n if (item.value.replace(/.*?:\\/\\//g, '') === mediaPlayerModel.getDefaultUtcTimingSource().value.replace(/.*?:\\/\\//g, '')) {\n item.value = item.value.replace(isHTTPS ? new RegExp(/^(http:)?\\/\\//i) : new RegExp(/^(https:)?\\/\\//i), isHTTPS ? 'https://' : 'http://');\n logger.debug('Matching default timing source protocol to manifest protocol: ', item.value);\n }\n });\n\n baseURLController.initialize(manifest);\n timeSyncController.attemptSync(allUTCTimingSources);\n } else {\n hasInitialisationError = true;\n reset();\n }\n }\n\n function hasVideoTrack() {\n return activeStream ? activeStream.getHasVideoTrack() : false;\n }\n\n function hasAudioTrack() {\n return activeStream ? activeStream.getHasAudioTrack() : false;\n }\n\n function flushPlaylistMetrics(reason, time) {\n time = time || new Date();\n\n getActiveStreamProcessors().forEach(p => {\n p.finalisePlayList(time, reason);\n });\n dashMetrics.addPlayList();\n }\n\n function createPlaylistMetrics(startReason) {\n dashMetrics.createPlaylistMetrics(playbackController.getTime() * 1000, startReason);\n }\n\n function onPlaybackError(e) {\n if (!e.error) return;\n\n let msg = '';\n\n switch (e.error.code) {\n case 1:\n msg = 'MEDIA_ERR_ABORTED';\n break;\n case 2:\n msg = 'MEDIA_ERR_NETWORK';\n break;\n case 3:\n msg = 'MEDIA_ERR_DECODE';\n break;\n case 4:\n msg = 'MEDIA_ERR_SRC_NOT_SUPPORTED';\n break;\n case 5:\n msg = 'MEDIA_ERR_ENCRYPTED';\n break;\n default:\n msg = 'UNKNOWN';\n break;\n }\n\n hasMediaError = true;\n\n if (e.error.message) {\n msg += ' (' + e.error.message + ')';\n }\n\n if (e.error.msExtendedCode) {\n msg += ' (0x' + (e.error.msExtendedCode >>> 0).toString(16).toUpperCase() + ')';\n }\n\n logger.fatal('Video Element Error: ' + msg);\n if (e.error) {\n logger.fatal(e.error);\n }\n errHandler.error(new DashJSError(e.error.code, msg));\n reset();\n }\n\n function getActiveStreamInfo() {\n return activeStream ? activeStream.getStreamInfo() : null;\n }\n\n function getIsStreamSwitchInProgress() {\n return isStreamSwitchingInProgress;\n }\n\n function getHasMediaOrIntialisationError() {\n return hasMediaError || hasInitialisationError;\n }\n\n function getStreamById(id) {\n return streams.filter(function (item) {\n return item.getId() === id;\n })[0];\n }\n\n function checkConfig() {\n if (!manifestLoader || !manifestLoader.hasOwnProperty('load') || !timelineConverter || !timelineConverter.hasOwnProperty('initialize') ||\n !timelineConverter.hasOwnProperty('reset') || !timelineConverter.hasOwnProperty('getClientTimeOffset') || !manifestModel || !errHandler ||\n !dashMetrics || !playbackController) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function checkInitialize() {\n if (!manifestUpdater || !manifestUpdater.hasOwnProperty('setManifest')) {\n throw new Error('initialize function has to be called previously');\n }\n }\n\n function load(url) {\n checkConfig();\n manifestLoader.load(url);\n }\n\n function loadWithManifest(manifest) {\n checkInitialize();\n manifestUpdater.setManifest(manifest);\n }\n\n function onManifestValidityChanged(e) {\n if (!isNaN(e.newDuration)) {\n setMediaDuration(e.newDuration);\n }\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.capabilities) {\n capabilities = config.capabilities;\n }\n if (config.capabilitiesFilter) {\n capabilitiesFilter = config.capabilitiesFilter;\n }\n if (config.manifestLoader) {\n manifestLoader = config.manifestLoader;\n }\n if (config.manifestModel) {\n manifestModel = config.manifestModel;\n }\n if (config.mediaPlayerModel) {\n mediaPlayerModel = config.mediaPlayerModel;\n }\n if (config.protectionController) {\n protectionController = config.protectionController;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n if (config.errHandler) {\n errHandler = config.errHandler;\n }\n if (config.timelineConverter) {\n timelineConverter = config.timelineConverter;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n if (config.abrController) {\n abrController = config.abrController;\n }\n if (config.mediaController) {\n mediaController = config.mediaController;\n }\n if (config.textController) {\n textController = config.textController;\n }\n if (config.settings) {\n settings = config.settings;\n }\n if (config.baseURLController) {\n baseURLController = config.baseURLController;\n }\n }\n\n function setProtectionData(protData) {\n protectionData = protData;\n }\n\n function resetInitialSettings() {\n streams = [];\n protectionController = null;\n isStreamSwitchingInProgress = false;\n activeStream = null;\n hasMediaError = false;\n hasInitialisationError = false;\n initialPlayback = true;\n isPaused = false;\n autoPlay = true;\n playbackEndedTimerInterval = null;\n isPeriodSwitchInProgress = false;\n prebufferingCanStartInterval = null;\n preBufferingCheckInProgress = false;\n preloadingStreams = [];\n }\n\n function reset() {\n checkConfig();\n\n timeSyncController.reset();\n\n flushPlaylistMetrics(\n hasMediaError || hasInitialisationError ?\n PlayListTrace.FAILURE_STOP_REASON :\n PlayListTrace.USER_REQUEST_STOP_REASON\n );\n\n for (let i = 0, ln = streams ? streams.length : 0; i < ln; i++) {\n const stream = streams[i];\n stream.reset(hasMediaError);\n }\n\n unRegisterEvents();\n\n baseURLController.reset();\n manifestUpdater.reset();\n eventController.reset();\n dashMetrics.clearAllCurrentMetrics();\n manifestModel.setValue(null);\n manifestLoader.reset();\n timelineConverter.reset();\n initCache.reset();\n\n if (mediaSource) {\n mediaSourceController.detachMediaSource(videoModel);\n mediaSource = null;\n }\n videoModel = null;\n if (protectionController) {\n protectionController.setMediaElement(null);\n protectionController = null;\n protectionData = null;\n if (manifestModel.getValue()) {\n eventBus.trigger(Events.PROTECTION_DESTROYED, { data: manifestModel.getValue().url });\n }\n }\n\n stopPlaybackEndedTimerInterval();\n stopCheckIfPrebufferingCanStartInterval();\n eventBus.trigger(Events.STREAM_TEARDOWN_COMPLETE);\n resetInitialSettings();\n }\n\n function onMetricAdded(e) {\n if (e.metric === MetricsConstants.DVR_INFO) {\n //Match media type? How can DVR window be different for media types?\n //Should we normalize and union the two?\n const targetMediaType = hasAudioTrack() ? Constants.AUDIO : Constants.VIDEO;\n if (e.mediaType === targetMediaType) {\n mediaSourceController.setSeekable(mediaSource, e.value.range.start, e.value.range.end);\n }\n }\n }\n\n function getStreams() {\n return streams;\n }\n\n instance = {\n initialize,\n getActiveStreamInfo,\n hasVideoTrack,\n hasAudioTrack,\n switchToVideoElement,\n getStreamById,\n getStreamForTime,\n getTimeRelativeToStreamId,\n load,\n loadWithManifest,\n getActiveStreamProcessors,\n setConfig,\n setProtectionData,\n getIsStreamSwitchInProgress,\n getHasMediaOrIntialisationError,\n hasStreamFinishedBuffering,\n getStreams,\n getActiveStream,\n reset\n };\n\n setup();\n\n return instance;\n}\n\nStreamController.__dashjs_factory_name = 'StreamController';\nexport default FactoryMaker.getSingletonFactory(StreamController);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport DashJSError from './../vo/DashJSError';\nimport {HTTPRequest} from '../vo/metrics/HTTPRequest';\nimport EventBus from './../../core/EventBus';\nimport Events from './../../core/events/Events';\nimport Errors from './../../core/errors/Errors';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport URLUtils from '../utils/URLUtils';\n\nconst HTTP_TIMEOUT_MS = 5000;\nconst DEFAULT_MAXIMUM_ALLOWED_DRIFT = 100;\nconst DEFAULT_TIME_BETWEEN_SYNC_ATTEMPTS_ADJUSTMENT_FACTOR = 2;\nconst DEFAULT_BACKGROUND_ATTEMPTS = 2;\nconst DEFAULT_TIME_BETWEEN_SYNC_ATTEMPTS = 30;\nconst DEFAULT_MINIMUM_TIME_BETWEEN_BACKGROUND_SYNC_ATTEMPTS = 30;\nconst DEFAULT_MAXIMUM_TIME_BETWEEN_SYNC = 600;\nconst DEFAULT_MINIMUM_TIME_BETWEEN_SYNC = 2;\n\nfunction TimeSyncController() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n logger,\n isSynchronizing,\n isBackgroundSynchronizing,\n settings,\n handlers,\n dashMetrics,\n backgroundSyncTimeOffsets,\n timingSources,\n timeOfLastSync,\n timeOfLastBackgroundSync,\n lastOffset,\n lastTimingSource,\n internalTimeBetweenSyncAttempts,\n baseURLController;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n\n eventBus.on(Events.ATTEMPT_BACKGROUND_SYNC, _onAttemptBackgroundSync, instance);\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n\n if (config.baseURLController) {\n baseURLController = config.baseURLController;\n }\n\n if (config.settings) {\n settings = config.settings;\n }\n }\n\n function _resetInitialSettings() {\n backgroundSyncTimeOffsets = [];\n timingSources = [];\n timeOfLastSync = null;\n timeOfLastBackgroundSync = null;\n lastTimingSource = null;\n lastOffset = NaN;\n isSynchronizing = false;\n isBackgroundSynchronizing = false;\n internalTimeBetweenSyncAttempts = settings.get().streaming.utcSynchronization.timeBetweenSyncAttempts;\n }\n\n /**\n * Register the timing handler depending on the schemeIdUris. This method is called once when the StreamController is initialized\n */\n function initialize() {\n _resetInitialSettings();\n\n // a list of known schemeIdUris and a method to call with @value\n handlers = {\n 'urn:mpeg:dash:utc:http-head:2014': _httpHeadHandler,\n 'urn:mpeg:dash:utc:http-xsdate:2014': _httpHandler.bind(null, _xsdatetimeDecoder),\n 'urn:mpeg:dash:utc:http-iso:2014': _httpHandler.bind(null, _iso8601Decoder),\n 'urn:mpeg:dash:utc:direct:2014': _directHandler,\n\n // some specs referencing early ISO23009-1 drafts incorrectly use\n // 2012 in the URI, rather than 2014. support these for now.\n 'urn:mpeg:dash:utc:http-head:2012': _httpHeadHandler,\n 'urn:mpeg:dash:utc:http-xsdate:2012': _httpHandler.bind(null, _xsdatetimeDecoder),\n 'urn:mpeg:dash:utc:http-iso:2012': _httpHandler.bind(null, _iso8601Decoder),\n 'urn:mpeg:dash:utc:direct:2012': _directHandler,\n\n // it isn't clear how the data returned would be formatted, and\n // no public examples available so http-ntp not supported for now.\n // presumably you would do an arraybuffer type xhr and decode the\n // binary data returned but I would want to see a sample first.\n 'urn:mpeg:dash:utc:http-ntp:2014': _notSupportedHandler,\n\n // not clear how this would be supported in javascript (in browser)\n 'urn:mpeg:dash:utc:ntp:2014': _notSupportedHandler,\n 'urn:mpeg:dash:utc:sntp:2014': _notSupportedHandler\n };\n\n }\n\n /**\n * Sync against a timing source. T\n * @param {array} tSources\n */\n function attemptSync(tSources) {\n\n timingSources = tSources;\n\n // Stop if we are already synchronizing\n if (isSynchronizing) {\n return;\n }\n\n // No synchronization required we can signal the completion immediately\n if (!_shouldPerformSynchronization()) {\n eventBus.trigger(Events.TIME_SYNCHRONIZATION_COMPLETED);\n return;\n }\n\n isSynchronizing = true;\n _attemptRecursiveSync();\n }\n\n /**\n * Does a synchronization in the background in case the last offset should be verified or a 404 occurs\n */\n function _onAttemptBackgroundSync() {\n if (isSynchronizing || isBackgroundSynchronizing || !lastTimingSource || !lastTimingSource.value || !lastTimingSource.schemeIdUri || isNaN(lastOffset) || isNaN(settings.get().streaming.utcSynchronization.backgroundAttempts)) {\n return;\n }\n\n if (timeOfLastBackgroundSync && ((Date.now() - timeOfLastBackgroundSync) / 1000) < DEFAULT_MINIMUM_TIME_BETWEEN_BACKGROUND_SYNC_ATTEMPTS) {\n return;\n }\n\n backgroundSyncTimeOffsets = [];\n isBackgroundSynchronizing = true;\n const backgroundAttempts = !isNaN(settings.get().streaming.utcSynchronization.backgroundAttempts) ? settings.get().streaming.utcSynchronization.backgroundAttempts : DEFAULT_BACKGROUND_ATTEMPTS;\n _attemptBackgroundSync(backgroundAttempts);\n }\n\n /**\n * Perform a defined number of background attempts\n * @param {number} attempts\n * @private\n */\n function _attemptBackgroundSync(attempts) {\n try {\n if (attempts <= 0) {\n _completeBackgroundTimeSyncSequence();\n return;\n }\n\n const deviceTimeBeforeSync = Date.now();\n handlers[lastTimingSource.schemeIdUri](\n lastTimingSource.value,\n function (serverTime) {\n // the timing source returned something useful\n const deviceTimeAfterSync = Date.now();\n const offset = _calculateOffset(deviceTimeBeforeSync, deviceTimeAfterSync, serverTime);\n\n backgroundSyncTimeOffsets.push(offset);\n _attemptBackgroundSync(attempts - 1);\n },\n function () {\n _completeBackgroundTimeSyncSequence();\n }\n );\n } catch (e) {\n _completeBackgroundTimeSyncSequence();\n }\n }\n\n /**\n * Sync against a timing source. This method is called recursively if the time sync for the first entry in timingSources fails.\n * @param {number} sourceIndex\n */\n function _attemptRecursiveSync(sourceIndex = null) {\n // if called with no sourceIndex, use zero (highest priority)\n let index = sourceIndex || 0;\n\n // the sources should be ordered in priority from the manifest.\n // try each in turn, from the top, until either something\n // sensible happens, or we run out of sources to try.\n if (!timingSources || timingSources.length === 0 || index >= timingSources.length) {\n _onComplete();\n return;\n }\n let source = timingSources[index];\n\n if (source) {\n // check if there is a handler for this @schemeIdUri\n if (handlers.hasOwnProperty(source.schemeIdUri)) {\n // if so, call it with its @value\n const deviceTimeBeforeSync = new Date().getTime();\n handlers[source.schemeIdUri](\n source.value,\n function (serverTime) {\n // the timing source returned something useful\n const deviceTimeAfterSync = new Date().getTime();\n const offset = _calculateOffset(deviceTimeBeforeSync, deviceTimeAfterSync, serverTime);\n lastTimingSource = source;\n\n _onComplete(offset);\n },\n function () {\n // the timing source was probably uncontactable\n // or returned something we can't use - try again\n // with the remaining sources\n _attemptRecursiveSync(index + 1);\n }\n );\n } else {\n // an unknown schemeIdUri must have been found\n // try again with the remaining sources\n _attemptRecursiveSync(index + 1);\n }\n } else {\n // no valid time source could be found, just use device time\n _onComplete();\n }\n\n }\n\n /**\n * Calculate the offset between client and server. Account for the roundtrip time\n * @param {number} deviceTimeBeforeSync\n * @param {number} deviceTimeAfterSync\n * @param {number} serverTime\n * @return {number}\n * @private\n */\n function _calculateOffset(deviceTimeBeforeSync, deviceTimeAfterSync, serverTime) {\n const deviceReferenceTime = deviceTimeAfterSync - ((deviceTimeAfterSync - deviceTimeBeforeSync) / 2);\n\n return serverTime - deviceReferenceTime;\n }\n\n /**\n * Checks if a synchronization is required\n * @return {boolean}\n * @private\n */\n function _shouldPerformSynchronization() {\n try {\n const timeBetweenSyncAttempts = !isNaN(internalTimeBetweenSyncAttempts) ? internalTimeBetweenSyncAttempts : DEFAULT_TIME_BETWEEN_SYNC_ATTEMPTS;\n\n if (!timeOfLastSync || !timeBetweenSyncAttempts || isNaN(timeBetweenSyncAttempts)) {\n return true;\n }\n\n return ((Date.now() - timeOfLastSync) / 1000) >= timeBetweenSyncAttempts;\n } catch (e) {\n return true;\n }\n }\n\n /**\n * Callback after sync has been completed\n * @param {number} offset\n * @private\n */\n function _onComplete(offset = NaN) {\n let failed = isNaN(offset);\n if (failed && settings.get().streaming.useManifestDateHeaderTimeSource) {\n //Before falling back to binary search , check if date header exists on MPD. if so, use for a time source.\n _checkForDateHeader();\n } else {\n _completeTimeSyncSequence(failed, offset);\n }\n }\n\n /**\n * Takes xsdatetime and returns milliseconds since UNIX epoch. May not be necessary as xsdatetime is very similar to ISO 8601 which is natively understood by javascript Date parser\n * @param {string} xsdatetimeStr\n * @return {number}\n * @private\n */\n function _alternateXsdatetimeDecoder(xsdatetimeStr) {\n // taken from DashParser - should probably refactor both uses\n const SECONDS_IN_MIN = 60;\n const MINUTES_IN_HOUR = 60;\n const MILLISECONDS_IN_SECONDS = 1000;\n let datetimeRegex = /^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2})(?::([0-9]*)(\\.[0-9]*)?)?(?:([+\\-])([0-9]{2})([0-9]{2}))?/;\n\n let utcDate,\n timezoneOffset;\n\n let match = datetimeRegex.exec(xsdatetimeStr);\n\n // If the string does not contain a timezone offset different browsers can interpret it either\n // as UTC or as a local time so we have to parse the string manually to normalize the given date value for\n // all browsers\n utcDate = Date.UTC(\n parseInt(match[1], 10),\n parseInt(match[2], 10) - 1, // months start from zero\n parseInt(match[3], 10),\n parseInt(match[4], 10),\n parseInt(match[5], 10),\n (match[6] && (parseInt(match[6], 10) || 0)),\n (match[7] && parseFloat(match[7]) * MILLISECONDS_IN_SECONDS) || 0\n );\n // If the date has timezone offset take it into account as well\n if (match[9] && match[10]) {\n timezoneOffset = parseInt(match[9], 10) * MINUTES_IN_HOUR + parseInt(match[10], 10);\n utcDate += (match[8] === '+' ? -1 : +1) * timezoneOffset * SECONDS_IN_MIN * MILLISECONDS_IN_SECONDS;\n }\n\n return new Date(utcDate).getTime();\n }\n\n\n /**\n * Try to use the built in parser, since xsdate is a constrained ISO8601 which is supported natively by Date.parse. if that fails, try a regex-based version used elsewhere in this application.\n * @param {string} xsdatetimeStr\n * @return {number}\n */\n function _xsdatetimeDecoder(xsdatetimeStr) {\n let parsedDate = Date.parse(xsdatetimeStr);\n\n if (isNaN(parsedDate)) {\n parsedDate = _alternateXsdatetimeDecoder(xsdatetimeStr);\n }\n\n return parsedDate;\n }\n\n /**\n * Takes ISO 8601 timestamp and returns milliseconds since UNIX epoch\n * @param {string} isoStr\n * @return {number}\n */\n function _iso8601Decoder(isoStr) {\n return Date.parse(isoStr);\n }\n\n /**\n * Takes RFC 1123 timestamp (which is same as ISO8601) and returns milliseconds since UNIX epoch\n * @param {string} dateStr\n * @return {number}\n */\n function _rfc1123Decoder(dateStr) {\n return Date.parse(dateStr);\n }\n\n /**\n * Handler for unsupported scheme ids.\n * @param {string} url\n * @param {function} onSuccessCB\n * @param {function} onFailureCB\n * @private\n */\n function _notSupportedHandler(url, onSuccessCB, onFailureCB) {\n onFailureCB();\n }\n\n /**\n * Direct handler\n * @param {string} xsdatetimeStr\n * @param {function} onSuccessCB\n * @param {function} onFailureCB\n */\n function _directHandler(xsdatetimeStr, onSuccessCB, onFailureCB) {\n let time = _xsdatetimeDecoder(xsdatetimeStr);\n\n if (!isNaN(time)) {\n onSuccessCB(time);\n return;\n }\n\n onFailureCB();\n }\n\n /**\n * Generic http handler\n * @param {function} decoder\n * @param {string} url\n * @param {function} onSuccessCB\n * @param {function} onFailureCB\n * @param {boolean} isHeadRequest\n * @private\n */\n function _httpHandler(decoder, url, onSuccessCB, onFailureCB, isHeadRequest) {\n let oncomplete,\n onload;\n let complete = false;\n let req = new XMLHttpRequest();\n\n let verb = isHeadRequest ? HTTPRequest.HEAD : HTTPRequest.GET;\n let urls = url.match(/\\S+/g);\n\n // according to ISO 23009-1, url could be a white-space\n // separated list of URLs. just handle one at a time.\n url = urls.shift();\n\n oncomplete = function () {\n if (complete) {\n return;\n }\n\n // we only want to pass through here once per xhr,\n // regardless of whether the load was successful.\n complete = true;\n\n // if there are more urls to try, call self.\n if (urls.length) {\n _httpHandler(decoder, urls.join(' '), onSuccessCB, onFailureCB, isHeadRequest);\n } else {\n onFailureCB();\n }\n };\n\n onload = function () {\n let time,\n result;\n\n if (req.status === 200) {\n time = isHeadRequest ?\n req.getResponseHeader('Date') :\n req.response;\n\n result = decoder(time);\n\n // decoder returns NaN if non-standard input\n if (!isNaN(result)) {\n onSuccessCB(result);\n complete = true;\n }\n }\n };\n\n if (urlUtils.isRelative(url)) {\n // passing no path to resolve will return just MPD BaseURL/baseUri\n const baseUrl = baseURLController.resolve();\n if (baseUrl) {\n url = urlUtils.resolve(url, baseUrl.url);\n }\n }\n\n req.open(verb, url);\n req.timeout = HTTP_TIMEOUT_MS || 0;\n req.onload = onload;\n req.onloadend = oncomplete;\n req.send();\n }\n\n /**\n * Handler for http-head schemeIdUri\n * @param {string} url\n * @param {function} onSuccessCB\n * @param {function} onFailureCB\n * @private\n */\n function _httpHeadHandler(url, onSuccessCB, onFailureCB) {\n _httpHandler(_rfc1123Decoder, url, onSuccessCB, onFailureCB, true);\n }\n\n /**\n * Checks if a date header is present in the MPD response and calculates the offset based on the header\n * @private\n */\n function _checkForDateHeader() {\n let dateHeaderValue = dashMetrics.getLatestMPDRequestHeaderValueByID('Date');\n let dateHeaderTime = dateHeaderValue !== null ? new Date(dateHeaderValue).getTime() : Number.NaN;\n\n if (!isNaN(dateHeaderTime)) {\n const offsetToDeviceTimeMs = dateHeaderTime - Date.now();\n _completeTimeSyncSequence(false, offsetToDeviceTimeMs);\n } else {\n _completeTimeSyncSequence(true);\n }\n }\n\n /**\n * Triggers the event to signal that the time synchronization was completed\n * @param {boolean} failed\n * @param {number} offset\n * @private\n */\n function _completeTimeSyncSequence(failed, offset) {\n\n // Adjust the time of the next sync based on the drift between current offset and last offset\n if (!isNaN(lastOffset) && !isNaN(offset) && !failed) {\n _adjustTimeBetweenSyncAttempts(offset);\n }\n\n // Update the internal data\n if (!failed && !isNaN(offset)) {\n timeOfLastSync = Date.now();\n isSynchronizing = false;\n\n // if this is the first sync we are doing perform background syncs as well to confirm current offset\n const shouldAttemptBackgroundSync = isNaN(lastOffset);\n lastOffset = offset;\n if (shouldAttemptBackgroundSync) {\n _onAttemptBackgroundSync();\n }\n logger.debug(`Completed UTC sync. Setting client - server offset to ${offset}`);\n }\n\n if (failed) {\n lastTimingSource = null;\n }\n\n // Notify other classes\n eventBus.trigger(Events.UPDATE_TIME_SYNC_OFFSET, {\n offset: offset,\n error: failed ? new DashJSError(Errors.TIME_SYNC_FAILED_ERROR_CODE, Errors.TIME_SYNC_FAILED_ERROR_MESSAGE) : null\n });\n eventBus.trigger(Events.TIME_SYNCHRONIZATION_COMPLETED);\n }\n\n function _adjustTimeBetweenSyncAttempts(offset) {\n try {\n const isOffsetDriftWithinThreshold = _isOffsetDriftWithinThreshold(offset);\n const timeBetweenSyncAttempts = !isNaN(internalTimeBetweenSyncAttempts) ? internalTimeBetweenSyncAttempts : DEFAULT_TIME_BETWEEN_SYNC_ATTEMPTS;\n const timeBetweenSyncAttemptsAdjustmentFactor = !isNaN(settings.get().streaming.utcSynchronization.timeBetweenSyncAttemptsAdjustmentFactor) ? settings.get().streaming.utcSynchronization.timeBetweenSyncAttemptsAdjustmentFactor : DEFAULT_TIME_BETWEEN_SYNC_ATTEMPTS_ADJUSTMENT_FACTOR;\n const maximumTimeBetweenSyncAttempts = !isNaN(settings.get().streaming.utcSynchronization.maximumTimeBetweenSyncAttempts) ? settings.get().streaming.utcSynchronization.maximumTimeBetweenSyncAttempts : DEFAULT_MAXIMUM_TIME_BETWEEN_SYNC;\n const minimumTimeBetweenSyncAttempts = !isNaN(settings.get().streaming.utcSynchronization.minimumTimeBetweenSyncAttempts) ? settings.get().streaming.utcSynchronization.minimumTimeBetweenSyncAttempts : DEFAULT_MINIMUM_TIME_BETWEEN_SYNC;\n let adjustedTimeBetweenSyncAttempts;\n\n if (isOffsetDriftWithinThreshold) {\n // The drift between the current offset and the last offset is within the allowed threshold. Increase sync time\n adjustedTimeBetweenSyncAttempts = Math.min(timeBetweenSyncAttempts * timeBetweenSyncAttemptsAdjustmentFactor, maximumTimeBetweenSyncAttempts);\n logger.debug(`Increasing timeBetweenSyncAttempts to ${adjustedTimeBetweenSyncAttempts}`);\n } else {\n // Drift between the current offset and the last offset is not within the allowed threshold. Decrease sync time\n adjustedTimeBetweenSyncAttempts = Math.max(timeBetweenSyncAttempts / timeBetweenSyncAttemptsAdjustmentFactor, minimumTimeBetweenSyncAttempts);\n logger.debug(`Decreasing timeBetweenSyncAttempts to ${adjustedTimeBetweenSyncAttempts}`);\n }\n\n internalTimeBetweenSyncAttempts = adjustedTimeBetweenSyncAttempts;\n } catch (e) {\n\n }\n }\n\n /**\n * Callback after all background syncs have been completed.\n * @private\n */\n function _completeBackgroundTimeSyncSequence() {\n if (!backgroundSyncTimeOffsets || backgroundSyncTimeOffsets.length === 0) {\n return;\n }\n\n const averageOffset = backgroundSyncTimeOffsets.reduce((acc, curr) => {\n return acc + curr;\n }, 0) / backgroundSyncTimeOffsets.length;\n\n if (!_isOffsetDriftWithinThreshold(averageOffset)) {\n logger.debug(`Completed background UTC sync. Setting client - server offset to ${averageOffset}`);\n lastOffset = averageOffset;\n eventBus.trigger(Events.UPDATE_TIME_SYNC_OFFSET, {\n offset: lastOffset\n });\n } else {\n logger.debug(`Completed background UTC sync. Offset is within allowed threshold and is not adjusted.`);\n }\n\n isBackgroundSynchronizing = false;\n timeOfLastBackgroundSync = Date.now();\n }\n\n function _isOffsetDriftWithinThreshold(offset) {\n try {\n if (isNaN(lastOffset)) {\n return true;\n }\n\n const maxAllowedDrift = settings.get().streaming.utcSynchronization.maximumAllowedDrift && !isNaN(settings.get().streaming.utcSynchronization.maximumAllowedDrift) ? settings.get().streaming.utcSynchronization.maximumAllowedDrift : DEFAULT_MAXIMUM_ALLOWED_DRIFT;\n const lowerBound = lastOffset - maxAllowedDrift;\n const upperBound = lastOffset + maxAllowedDrift;\n\n return offset >= lowerBound && offset <= upperBound;\n } catch (e) {\n return true;\n }\n }\n\n function reset() {\n _resetInitialSettings();\n\n eventBus.off(Events.ATTEMPT_BACKGROUND_SYNC, _onAttemptBackgroundSync, instance);\n }\n\n instance = {\n initialize,\n attemptSync,\n setConfig,\n reset\n };\n\n setup();\n\n return instance;\n}\n\nTimeSyncController.__dashjs_factory_name = 'TimeSyncController';\nconst factory = FactoryMaker.getSingletonFactory(TimeSyncController);\nfactory.HTTP_TIMEOUT_MS = HTTP_TIMEOUT_MS;\nFactoryMaker.updateSingletonFactory(TimeSyncController.__dashjs_factory_name, factory);\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport XlinkLoader from '../XlinkLoader';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport X2JS from '../../../externals/xml2json';\nimport URLUtils from '../utils/URLUtils';\nimport DashConstants from '../../dash/constants/DashConstants';\n\nconst RESOLVE_TYPE_ONLOAD = 'onLoad';\nconst RESOLVE_TYPE_ONACTUATE = 'onActuate';\nconst RESOLVE_TO_ZERO = 'urn:mpeg:dash:resolve-to-zero:2013';\n\nfunction XlinkController(config) {\n\n config = config || {};\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n matchers,\n iron,\n manifest,\n converter,\n xlinkLoader;\n\n function setup() {\n eventBus.on(Events.XLINK_ELEMENT_LOADED, onXlinkElementLoaded, instance);\n\n xlinkLoader = XlinkLoader(context).create({\n errHandler: config.errHandler,\n dashMetrics: config.dashMetrics,\n mediaPlayerModel: config.mediaPlayerModel,\n requestModifier: config.requestModifier,\n settings: config.settings\n });\n }\n\n function setMatchers(value) {\n if (value) {\n matchers = value;\n }\n }\n\n function setIron(value) {\n if (value) {\n iron = value;\n }\n }\n\n /**\n * Triggers the resolution of the xlink.onLoad attributes in the manifest file
\n * @param {Object} mpd - the manifest\n */\n function resolveManifestOnLoad(mpd) {\n let elements;\n // First resolve all periods, so unnecessary requests inside onLoad Periods with Default content are avoided\n converter = new X2JS({\n escapeMode: false,\n attributePrefix: '',\n arrayAccessForm: 'property',\n emptyNodeForm: 'object',\n stripWhitespaces: false,\n enableToStringFunc: false,\n ignoreRoot: true,\n matchers: matchers\n });\n\n manifest = mpd;\n\n if (manifest.Period_asArray) {\n elements = getElementsToResolve(manifest.Period_asArray, manifest, DashConstants.PERIOD, RESOLVE_TYPE_ONLOAD);\n resolve(elements, DashConstants.PERIOD, RESOLVE_TYPE_ONLOAD);\n } else {\n eventBus.trigger(Events.XLINK_READY, {manifest: manifest});\n }\n }\n\n function reset() {\n eventBus.off(Events.XLINK_ELEMENT_LOADED, onXlinkElementLoaded, instance);\n\n if (xlinkLoader) {\n xlinkLoader.reset();\n xlinkLoader = null;\n }\n }\n\n function resolve(elements, type, resolveType) {\n let resolveObject = {};\n let element,\n url;\n\n resolveObject.elements = elements;\n resolveObject.type = type;\n resolveObject.resolveType = resolveType;\n // If nothing to resolve, directly call allElementsLoaded\n if (resolveObject.elements.length === 0) {\n onXlinkAllElementsLoaded(resolveObject);\n }\n for (let i = 0; i < resolveObject.elements.length; i++) {\n element = resolveObject.elements[i];\n if (urlUtils.isHTTPURL(element.url)) {\n url = element.url;\n } else {\n url = element.originalContent.BaseURL + element.url;\n }\n xlinkLoader.load(url, element, resolveObject);\n }\n }\n\n function onXlinkElementLoaded(event) {\n let element,\n resolveObject;\n\n const openingTag = '';\n const closingTag = ' ';\n let mergedContent = '';\n\n element = event.element;\n resolveObject = event.resolveObject;\n // if the element resolved into content parse the content\n if (element.resolvedContent) {\n let index = 0;\n // we add a parent elements so the converter is able to parse multiple elements of the same type which are not wrapped inside a container\n if (element.resolvedContent.indexOf('') + 2; //find the closing position of the xml declaration, if it exists.\n }\n mergedContent = element.resolvedContent.substr(0,index) + openingTag + element.resolvedContent.substr(index) + closingTag;\n element.resolvedContent = converter.xml_str2json(mergedContent);\n }\n if (isResolvingFinished(resolveObject)) {\n onXlinkAllElementsLoaded(resolveObject);\n }\n }\n\n // We got to wait till all elements of the current queue are resolved before merging back\n function onXlinkAllElementsLoaded (resolveObject) {\n let elements = [];\n let i,\n obj;\n\n mergeElementsBack(resolveObject);\n if (resolveObject.resolveType === RESOLVE_TYPE_ONACTUATE) {\n eventBus.trigger(Events.XLINK_READY, { manifest: manifest });\n }\n if (resolveObject.resolveType === RESOLVE_TYPE_ONLOAD) {\n switch (resolveObject.type) {\n // Start resolving the other elements. We can do Adaptation Set and EventStream in parallel\n case DashConstants.PERIOD:\n for (i = 0; i < manifest[DashConstants.PERIOD + '_asArray'].length; i++) {\n obj = manifest[DashConstants.PERIOD + '_asArray'][i];\n if (obj.hasOwnProperty(DashConstants.ADAPTATION_SET + '_asArray')) {\n elements = elements.concat(getElementsToResolve(obj[DashConstants.ADAPTATION_SET + '_asArray'], obj, DashConstants.ADAPTATION_SET, RESOLVE_TYPE_ONLOAD));\n }\n if (obj.hasOwnProperty(DashConstants.EVENT_STREAM + '_asArray')) {\n elements = elements.concat(getElementsToResolve(obj[DashConstants.EVENT_STREAM + '_asArray'], obj, DashConstants.EVENT_STREAM, RESOLVE_TYPE_ONLOAD));\n }\n }\n resolve(elements, DashConstants.ADAPTATION_SET, RESOLVE_TYPE_ONLOAD);\n break;\n case DashConstants.ADAPTATION_SET:\n // TODO: Resolve SegmentList here\n eventBus.trigger(Events.XLINK_READY, { manifest: manifest });\n break;\n }\n }\n }\n\n // Returns the elements with the specific resolve Type\n function getElementsToResolve(elements, parentElement, type, resolveType) {\n let toResolve = [];\n let element,\n i,\n xlinkObject;\n // first remove all the resolve-to-zero elements\n for (i = elements.length - 1; i >= 0; i--) {\n element = elements[i];\n if (element.hasOwnProperty('xlink:href') && element['xlink:href'] === RESOLVE_TO_ZERO) {\n elements.splice(i, 1);\n }\n }\n // now get the elements with the right resolve type\n for (i = 0; i < elements.length; i++) {\n element = elements[i];\n if (element.hasOwnProperty('xlink:href') && element.hasOwnProperty('xlink:actuate') && element['xlink:actuate'] === resolveType) {\n xlinkObject = createXlinkObject(element['xlink:href'], parentElement, type, i, resolveType, element);\n toResolve.push(xlinkObject);\n }\n }\n return toResolve;\n }\n\n function mergeElementsBack(resolveObject) {\n let resolvedElements = [];\n let element,\n type,\n obj,\n i,\n j,\n k;\n // Start merging back from the end because of index shifting. Note that the elements with the same parent have to be ordered by index ascending\n for (i = resolveObject.elements.length - 1; i >= 0; i --) {\n element = resolveObject.elements[i];\n type = element.type + '_asArray';\n\n // Element couldn't be resolved or is TODO Inappropriate target: Remove all Xlink attributes\n if (!element.resolvedContent || isInappropriateTarget()) {\n delete element.originalContent['xlink:actuate'];\n delete element.originalContent['xlink:href'];\n resolvedElements.push(element.originalContent);\n }\n // Element was successfully resolved\n else if (element.resolvedContent) {\n for (j = 0; j < element.resolvedContent[type].length; j++) {\n //TODO Contains another Xlink attribute with xlink:actuate set to onload. Remove all xLink attributes\n obj = element.resolvedContent[type][j];\n resolvedElements.push(obj);\n }\n }\n // Replace the old elements in the parent with the resolved ones\n element.parentElement[type].splice(element.index, 1);\n for (k = 0; k < resolvedElements.length; k++) {\n element.parentElement[type].splice(element.index + k, 0, resolvedElements[k]);\n }\n resolvedElements = [];\n }\n if (resolveObject.elements.length > 0) {\n iron.run(manifest);\n }\n }\n\n function createXlinkObject(url, parentElement, type, index, resolveType, originalContent) {\n return {\n url: url,\n parentElement: parentElement,\n type: type,\n index: index,\n resolveType: resolveType,\n originalContent: originalContent,\n resolvedContent: null,\n resolved: false\n };\n }\n\n // Check if all pending requests are finished\n function isResolvingFinished(elementsToResolve) {\n let i,\n obj;\n for (i = 0; i < elementsToResolve.elements.length; i++) {\n obj = elementsToResolve.elements[i];\n if (obj.resolved === false) {\n return false;\n }\n }\n return true;\n }\n\n // TODO : Do some syntax check here if the target is valid or not\n function isInappropriateTarget() {\n return false;\n }\n\n instance = {\n resolveManifestOnLoad: resolveManifestOnLoad,\n setMatchers: setMatchers,\n setIron: setIron,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nXlinkController.__dashjs_factory_name = 'XlinkController';\nexport default FactoryMaker.getClassFactory(XlinkController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport DVBErrorsTranslator from './utils/DVBErrorsTranslator';\nimport MetricsReportingEvents from './MetricsReportingEvents';\nimport MetricsCollectionController from './controllers/MetricsCollectionController';\nimport MetricsHandlerFactory from './metrics/MetricsHandlerFactory';\nimport ReportingFactory from './reporting/ReportingFactory';\n\nfunction MetricsReporting() {\n\n let context = this.context;\n let instance,\n dvbErrorsTranslator;\n\n /**\n * Create a MetricsCollectionController, and a DVBErrorsTranslator\n * @param {Object} config - dependancies from owner\n * @return {MetricsCollectionController} Metrics Collection Controller\n */\n function createMetricsReporting(config) {\n dvbErrorsTranslator = DVBErrorsTranslator(context).getInstance({\n eventBus: config.eventBus,\n dashMetrics: config.dashMetrics,\n metricsConstants: config.metricsConstants,\n events: config.events\n });\n\n return MetricsCollectionController(context).create(config);\n }\n\n /**\n * Get the ReportingFactory to allow new reporters to be registered\n * @return {ReportingFactory} Reporting Factory\n */\n function getReportingFactory() {\n return ReportingFactory(context).getInstance();\n }\n\n /**\n * Get the MetricsHandlerFactory to allow new handlers to be registered\n * @return {MetricsHandlerFactory} Metrics Handler Factory\n */\n function getMetricsHandlerFactory() {\n return MetricsHandlerFactory(context).getInstance();\n }\n\n instance = {\n createMetricsReporting: createMetricsReporting,\n getReportingFactory: getReportingFactory,\n getMetricsHandlerFactory: getMetricsHandlerFactory\n };\n\n return instance;\n}\n\nMetricsReporting.__dashjs_factory_name = 'MetricsReporting';\nconst factory = dashjs.FactoryMaker.getClassFactory(MetricsReporting); /* jshint ignore:line */\nfactory.events = MetricsReportingEvents;\ndashjs.FactoryMaker.updateClassFactory(MetricsReporting.__dashjs_factory_name, factory); /* jshint ignore:line */\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventsBase from '../../core/events/EventsBase';\n\nclass MetricsReportingEvents extends EventsBase {\n constructor () {\n super();\n\n this.METRICS_INITIALISATION_COMPLETE = 'internal_metricsReportingInitialized';\n this.BECAME_REPORTING_PLAYER = 'internal_becameReportingPlayer';\n\n /**\n * Triggered when CMCD data was generated for a HTTP request\n * @event MetricsReportingEvents#CMCD_DATA_GENERATED\n */\n this.CMCD_DATA_GENERATED = 'cmcdDataGenerated';\n }\n}\n\nlet metricsReportingEvents = new MetricsReportingEvents();\nexport default metricsReportingEvents;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport MetricsController from './MetricsController';\nimport ManifestParsing from '../utils/ManifestParsing';\nimport MetricsReportingEvents from '../MetricsReportingEvents';\n\nfunction MetricsCollectionController(config) {\n\n config = config || {};\n let instance;\n let metricsControllers = {};\n let context = this.context;\n let eventBus = config.eventBus;\n const events = config.events;\n\n function update(e) {\n if (e.error) {\n return;\n }\n\n // start by assuming all existing controllers need removing\n let controllersToRemove = Object.keys(metricsControllers);\n\n const metrics = ManifestParsing(context).getInstance({\n adapter: config.adapter,\n constants: config.constants\n }).getMetrics(e.manifest);\n\n metrics.forEach(m => {\n const key = JSON.stringify(m);\n\n if (!metricsControllers.hasOwnProperty(key)) {\n try {\n let controller = MetricsController(context).create(config);\n controller.initialize(m);\n metricsControllers[key] = controller;\n } catch (e) {\n // fail quietly\n }\n } else {\n // we still need this controller - delete from removal list\n controllersToRemove.splice(key, 1);\n }\n });\n\n // now remove the unwanted controllers\n controllersToRemove.forEach(c => {\n metricsControllers[c].reset();\n delete metricsControllers[c];\n });\n\n eventBus.trigger(MetricsReportingEvents.METRICS_INITIALISATION_COMPLETE);\n }\n\n function resetMetricsControllers() {\n Object.keys(metricsControllers).forEach(key => {\n metricsControllers[key].reset();\n });\n\n metricsControllers = {};\n }\n\n function setup() {\n eventBus.on(events.MANIFEST_UPDATED, update, instance);\n eventBus.on(events.STREAM_TEARDOWN_COMPLETE, resetMetricsControllers, instance);\n }\n\n function reset() {\n eventBus.off(events.MANIFEST_UPDATED, update, instance);\n eventBus.off(events.STREAM_TEARDOWN_COMPLETE, resetMetricsControllers, instance);\n }\n\n instance = {\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nMetricsCollectionController.__dashjs_factory_name = 'MetricsCollectionController';\nexport default dashjs.FactoryMaker.getClassFactory(MetricsCollectionController); /* jshint ignore:line */\n",
@@ -410,22 +421,22 @@
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass Range {\n constructor() {\n\n // as defined in ISO23009-1\n this.starttime = 0;\n this.duration = Infinity;\n\n // for internal use\n this._useWallClockTime = false;\n }\n}\n\nexport default Range;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\n\n// TS 103 285 Clause 10.12.3.3\nconst DEFAULT_DVB_PROBABILITY = 1000;\n\nclass Reporting {\n constructor() {\n\n this.schemeIdUri = '';\n this.value = '';\n\n // DVB Extensions\n this.dvb_reportingUrl = '';\n this.dvb_probability = DEFAULT_DVB_PROBABILITY;\n }\n}\n\nexport default Reporting;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport ObjectUtils from '../utils/ObjectUtils';\nimport FactoryMaker from '../../core/FactoryMaker';\n\nconst DEFAULT_INDEX = NaN;\n\nclass Node {\n constructor(_baseUrls, _selectedIdx) {\n this.data = {\n baseUrls: _baseUrls || null,\n selectedIdx: _selectedIdx || DEFAULT_INDEX\n };\n this.children = [];\n }\n}\n\nfunction BaseURLTreeModel() {\n let instance,\n root,\n adapter;\n\n const context = this.context;\n const objectUtils = ObjectUtils(context).getInstance();\n\n function setup() {\n reset();\n }\n\n function setConfig(config) {\n if (config.adapter) {\n adapter = config.adapter;\n }\n }\n\n function checkConfig() {\n if (!adapter || !adapter.hasOwnProperty('getBaseURLsFromElement') || !adapter.hasOwnProperty('getRepresentationSortFunction')) {\n throw new Error('setConfig function has to be called previously');\n }\n }\n\n function updateChildData(node, index, element) {\n const baseUrls = adapter.getBaseURLsFromElement(element);\n\n if (!node[index]) {\n node[index] = new Node(baseUrls);\n } else {\n if (!objectUtils.areEqual(baseUrls, node[index].data.baseUrls)) {\n node[index].data.baseUrls = baseUrls;\n node[index].data.selectedIdx = DEFAULT_INDEX;\n }\n }\n }\n\n function getBaseURLCollectionsFromManifest(manifest) {\n checkConfig();\n const baseUrls = adapter.getBaseURLsFromElement(manifest);\n\n if (!objectUtils.areEqual(baseUrls, root.data.baseUrls)) {\n root.data.baseUrls = baseUrls;\n root.data.selectedIdx = DEFAULT_INDEX;\n }\n\n if (manifest && manifest.Period_asArray) {\n manifest.Period_asArray.forEach((p, pi) => {\n updateChildData(root.children, pi, p);\n\n if (p.AdaptationSet_asArray) {\n p.AdaptationSet_asArray.forEach((a, ai) => {\n updateChildData(root.children[pi].children, ai, a);\n\n if (a.Representation_asArray) {\n a.Representation_asArray.sort(\n adapter.getRepresentationSortFunction()\n ).forEach((r, ri) => {\n updateChildData(\n root.children[pi].children[ai].children,\n ri,\n r\n );\n });\n }\n });\n }\n });\n }\n }\n\n function walk(callback, node) {\n const target = node || root;\n\n callback(target.data);\n\n if (target.children) {\n target.children.forEach(child => walk(callback, child));\n }\n }\n\n function invalidateSelectedIndexes(serviceLocation) {\n walk((data) => {\n if (!isNaN(data.selectedIdx)) {\n if (serviceLocation === data.baseUrls[data.selectedIdx].serviceLocation) {\n data.selectedIdx = DEFAULT_INDEX;\n }\n }\n });\n }\n\n function update(manifest) {\n getBaseURLCollectionsFromManifest(manifest);\n }\n\n function reset() {\n root = new Node();\n }\n\n function getForPath(path) {\n let target = root;\n const nodes = [target.data];\n\n if (path) {\n path.forEach(p => {\n target = target.children[p];\n\n if (target) {\n nodes.push(target.data);\n }\n });\n }\n\n return nodes.filter(n => n.baseUrls.length);\n }\n\n instance = {\n reset: reset,\n update: update,\n getForPath: getForPath,\n invalidateSelectedIndexes: invalidateSelectedIndexes,\n setConfig: setConfig\n };\n\n setup();\n\n return instance;\n}\n\nBaseURLTreeModel.__dashjs_factory_name = 'BaseURLTreeModel';\nexport default FactoryMaker.getClassFactory(BaseURLTreeModel);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../../core/EventBus';\nimport MediaPlayerEvents from '../MediaPlayerEvents';\nimport MetricsReportingEvents from '../metrics/MetricsReportingEvents';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport Settings from '../../core/Settings';\nimport {HTTPRequest} from '../vo/metrics/HTTPRequest';\nimport DashManifestModel from '../../dash/models/DashManifestModel';\nimport Utils from '../../core/Utils';\n\nconst CMCD_REQUEST_FIELD_NAME = 'CMCD';\nconst CMCD_VERSION = 1;\nconst OBJECT_TYPES = {\n MANIFEST: 'm',\n AUDIO: 'a',\n VIDEO: 'v',\n INIT: 'i',\n CAPTION: 'c',\n ISOBMFF_TEXT_TRACK: 'tt',\n ENCRYPTION_KEY: 'k',\n OTHER: 'o'\n};\nconst STREAMING_FORMATS = {\n DASH: 'd',\n MSS: 's'\n};\nconst STREAM_TYPES = {\n VOD: 'v',\n LIVE: 'l'\n};\n\nfunction CmcdModel() {\n\n let logger,\n dashManifestModel,\n instance,\n internalData,\n abrController,\n dashMetrics,\n playbackController,\n _isStartup,\n _bufferLevelStarved,\n _initialMediaRequestsDone;\n\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n let settings = Settings(context).getInstance();\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n dashManifestModel = DashManifestModel(context).getInstance();\n\n _resetInitialSettings();\n }\n\n function initialize() {\n eventBus.on(MediaPlayerEvents.PLAYBACK_RATE_CHANGED, _onPlaybackRateChanged, instance);\n eventBus.on(MediaPlayerEvents.MANIFEST_LOADED, _onManifestLoaded, instance);\n eventBus.on(MediaPlayerEvents.BUFFER_LEVEL_STATE_CHANGED, _onBufferLevelStateChanged, instance);\n eventBus.on(MediaPlayerEvents.PLAYBACK_SEEKED, _onPlaybackSeeked, instance);\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.abrController) {\n abrController = config.abrController;\n }\n\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n }\n\n function _resetInitialSettings() {\n internalData = {\n pr: 1,\n nor: null,\n st: null,\n sf: null,\n sid: `${Utils.generateUuid()}`,\n cid: null\n };\n _bufferLevelStarved = {};\n _isStartup = {};\n _initialMediaRequestsDone = {};\n }\n\n function getQueryParameter(request) {\n try {\n if (settings.get().streaming.cmcd && settings.get().streaming.cmcd.enabled) {\n const cmcdData = _getCmcdData(request);\n const finalPayloadString = _buildFinalString(cmcdData);\n\n eventBus.trigger(MetricsReportingEvents.CMCD_DATA_GENERATED, {\n url: request.url,\n mediaType: request.mediaType,\n cmcdData,\n cmcdString: finalPayloadString\n });\n return {\n key: CMCD_REQUEST_FIELD_NAME,\n value: finalPayloadString\n };\n }\n\n return null;\n } catch (e) {\n return null;\n }\n }\n\n function _getCmcdData(request) {\n try {\n let cmcdData = null;\n\n if (request.type === HTTPRequest.MPD_TYPE) {\n return _getCmcdDataForMpd(request);\n } else if (request.type === HTTPRequest.MEDIA_SEGMENT_TYPE) {\n _initForMediaType(request.mediaType);\n return _getCmcdDataForMediaSegment(request);\n } else if (request.type === HTTPRequest.INIT_SEGMENT_TYPE) {\n return _getCmcdDataForInitSegment(request);\n } else if (request.type === HTTPRequest.OTHER_TYPE || request.type === HTTPRequest.XLINK_EXPANSION_TYPE) {\n return _getCmcdDataForOther(request);\n }\n\n return cmcdData;\n } catch (e) {\n return null;\n }\n }\n\n function _getCmcdDataForMpd() {\n const data = _getGenericCmcdData();\n\n data.ot = `${OBJECT_TYPES.MANIFEST}`;\n\n return data;\n }\n\n function _getCmcdDataForMediaSegment(request) {\n const data = _getGenericCmcdData();\n const encodedBitrate = _getBitrateByRequest(request);\n const d = _getObjectDurationByRequest(request);\n const ot = request.mediaType === 'video' ? `${OBJECT_TYPES.VIDEO}` : request.mediaType === 'audio' ? `${OBJECT_TYPES.AUDIO}` : request.mediaType === 'fragmentedText' ? `${OBJECT_TYPES.CAPTION}` : null;\n const mtp = _getMeasuredThroughputByType(request.mediaType);\n const dl = _getDeadlineByType(request.mediaType);\n const bl = _getBufferLevelByType(request.mediaType);\n const tb = _getTopBitrateByType(request.mediaType);\n const pr = internalData.pr;\n\n if (encodedBitrate) {\n data.br = encodedBitrate;\n }\n\n if (ot) {\n data.ot = ot;\n }\n\n if (!isNaN(d)) {\n data.d = d;\n }\n\n if (!isNaN(mtp)) {\n data.mtp = mtp;\n }\n\n if (!isNaN(dl)) {\n data.dl = dl;\n }\n\n if (!isNaN(bl)) {\n data.bl = bl;\n }\n\n if (!isNaN(tb)) {\n data.tb = tb;\n }\n\n if (!isNaN(pr) && pr !== 1) {\n data.pr = pr;\n }\n\n if (_bufferLevelStarved[request.mediaType]) {\n data.bs = true;\n _bufferLevelStarved[request.mediaType] = false;\n }\n\n if (_isStartup[request.mediaType] || !_initialMediaRequestsDone[request.mediaType]) {\n data.su = true;\n _isStartup[request.mediaType] = false;\n _initialMediaRequestsDone[request.mediaType] = true;\n }\n\n return data;\n }\n\n function _initForMediaType(mediaType) {\n\n if (!_initialMediaRequestsDone.hasOwnProperty(mediaType)) {\n _initialMediaRequestsDone[mediaType] = false;\n }\n\n if (!_isStartup.hasOwnProperty(mediaType)) {\n _isStartup[mediaType] = false;\n }\n\n if (!_bufferLevelStarved.hasOwnProperty(mediaType)) {\n _bufferLevelStarved[mediaType] = false;\n }\n }\n\n function _getCmcdDataForInitSegment() {\n const data = _getGenericCmcdData();\n\n data.ot = `${OBJECT_TYPES.INIT}`;\n data.su = true;\n\n return data;\n }\n\n function _getCmcdDataForOther() {\n const data = _getGenericCmcdData();\n\n data.ot = `${OBJECT_TYPES.OTHER}`;\n\n return data;\n }\n\n\n function _getGenericCmcdData() {\n const data = {};\n\n let cid = settings.get().streaming.cmcd.cid ? settings.get().streaming.cmcd.cid : internalData.cid;\n\n data.v = CMCD_VERSION;\n data.sid = settings.get().streaming.cmcd.sid ? settings.get().streaming.cmcd.sid : internalData.sid;\n\n data.sid = `${data.sid}`;\n\n if (cid) {\n data.cid = `${cid}`;\n }\n\n if (!isNaN(internalData.pr) && internalData.pr !== 1 && internalData.pr !== null) {\n data.pr = internalData.pr;\n }\n\n if (internalData.st) {\n data.st = internalData.st;\n }\n\n if (internalData.sf) {\n data.sf = internalData.sf;\n }\n\n return data;\n }\n\n function _getBitrateByRequest(request) {\n try {\n const quality = request.quality;\n const bitrateList = request.mediaInfo.bitrateList;\n\n return parseInt(bitrateList[quality].bandwidth / 1000);\n } catch (e) {\n return null;\n }\n }\n\n function _getTopBitrateByType(mediaType) {\n try {\n const info = abrController.getTopBitrateInfoFor(mediaType);\n return Math.round(info.bitrate / 1000);\n } catch (e) {\n return null;\n }\n }\n\n function _getObjectDurationByRequest(request) {\n try {\n return !isNaN(request.duration) ? Math.round(request.duration * 1000) : null;\n } catch (e) {\n return null;\n }\n }\n\n function _getMeasuredThroughputByType(mediaType) {\n try {\n return parseInt(abrController.getThroughputHistory().getSafeAverageThroughput(mediaType) / 100) * 100;\n } catch (e) {\n return null;\n }\n }\n\n function _getDeadlineByType(mediaType) {\n try {\n const playbackRate = internalData.pr;\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n\n if (!isNaN(playbackRate) && !isNaN(bufferLevel)) {\n return parseInt((bufferLevel / playbackRate) * 10) * 100;\n }\n\n return null;\n } catch (e) {\n return null;\n }\n }\n\n function _getBufferLevelByType(mediaType) {\n try {\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n\n if (!isNaN(bufferLevel)) {\n return parseInt(bufferLevel * 10) * 100;\n }\n\n return null;\n } catch (e) {\n return null;\n }\n }\n\n function _onPlaybackRateChanged(data) {\n try {\n internalData.pr = data.playbackRate;\n } catch (e) {\n\n }\n }\n\n function _onManifestLoaded(data) {\n try {\n const isDynamic = dashManifestModel.getIsDynamic(data.data);\n const st = isDynamic ? `${STREAM_TYPES.LIVE}` : `${STREAM_TYPES.VOD}`;\n const sf = data.protocol && data.protocol === 'MSS' ? `${STREAMING_FORMATS.MSS}` : `${STREAMING_FORMATS.DASH}`;\n\n internalData.st = `${st}`;\n internalData.sf = `${sf}`;\n } catch (e) {\n }\n }\n\n function _onBufferLevelStateChanged(data) {\n try {\n if (data.state && data.mediaType) {\n if (data.state === MediaPlayerEvents.BUFFER_EMPTY) {\n\n if (!_bufferLevelStarved[data.mediaType]) {\n _bufferLevelStarved[data.mediaType] = true;\n }\n if (!_isStartup[data.mediaType]) {\n _isStartup[data.mediaType] = true;\n }\n }\n }\n } catch (e) {\n\n }\n }\n\n function _onPlaybackSeeked() {\n for (let key in _bufferLevelStarved) {\n if (_bufferLevelStarved.hasOwnProperty(key)) {\n _bufferLevelStarved[key] = true;\n }\n }\n\n for (let key in _isStartup) {\n if (_isStartup.hasOwnProperty(key)) {\n _isStartup[key] = true;\n }\n }\n }\n\n function _buildFinalString(cmcdData) {\n try {\n if (!cmcdData) {\n return null;\n }\n const keys = Object.keys(cmcdData).sort((a, b) =>a.localeCompare(b));\n const length = keys.length;\n\n let cmcdString = keys.reduce((acc, key, index) => {\n if (key === 'v' && cmcdData[key] === 1) return acc; // Version key should only be reported if it is != 1\n if (typeof cmcdData[key] === 'string' && (key !== 'ot' || key !== 'sf' || key !== 'st')) {\n let string = cmcdData[key].replace(/\"/g, '\\\"');\n acc += `${key}=\"${string}\"`;\n } else {\n acc += `${key}=${cmcdData[key]}`;\n }\n if (index < length - 1) {\n acc += ',';\n }\n\n return acc;\n }, '');\n\n cmcdString = cmcdString.replace(/=true/g, '');\n\n return cmcdString;\n } catch (e) {\n return null;\n }\n }\n\n function reset() {\n eventBus.off(MediaPlayerEvents.PLAYBACK_RATE_CHANGED, _onPlaybackRateChanged, this);\n eventBus.off(MediaPlayerEvents.MANIFEST_LOADED, _onManifestLoaded, this);\n eventBus.off(MediaPlayerEvents.BUFFER_LEVEL_STATE_CHANGED, _onBufferLevelStateChanged, instance);\n eventBus.off(MediaPlayerEvents.PLAYBACK_SEEKED, _onPlaybackSeeked, instance);\n\n _resetInitialSettings();\n }\n\n instance = {\n getQueryParameter,\n setConfig,\n reset,\n initialize\n };\n\n setup();\n\n return instance;\n}\n\nCmcdModel.__dashjs_factory_name = 'CmcdModel';\nexport default FactoryMaker.getSingletonFactory(CmcdModel);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../../core/EventBus';\nimport MediaPlayerEvents from '../MediaPlayerEvents';\nimport MetricsReportingEvents from '../metrics/MetricsReportingEvents';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport Settings from '../../core/Settings';\nimport Constants from '../../streaming/constants/Constants';\nimport {HTTPRequest} from '../vo/metrics/HTTPRequest';\nimport DashManifestModel from '../../dash/models/DashManifestModel';\nimport Utils from '../../core/Utils';\n\nconst CMCD_REQUEST_FIELD_NAME = 'CMCD';\nconst CMCD_VERSION = 1;\nconst OBJECT_TYPES = {\n MANIFEST: 'm',\n AUDIO: 'a',\n VIDEO: 'v',\n INIT: 'i',\n CAPTION: 'c',\n ISOBMFF_TEXT_TRACK: 'tt',\n ENCRYPTION_KEY: 'k',\n OTHER: 'o'\n};\nconst STREAMING_FORMATS = {\n DASH: 'd',\n MSS: 's'\n};\nconst STREAM_TYPES = {\n VOD: 'v',\n LIVE: 'l'\n};\nconst RTP_SAFETY_FACTOR = 5;\n\nfunction CmcdModel() {\n\n let logger,\n dashManifestModel,\n instance,\n internalData,\n abrController,\n dashMetrics,\n playbackController,\n streamProcessors,\n _isStartup,\n _bufferLevelStarved,\n _initialMediaRequestsDone;\n\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n let settings = Settings(context).getInstance();\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n dashManifestModel = DashManifestModel(context).getInstance();\n\n _resetInitialSettings();\n }\n\n function initialize() {\n eventBus.on(MediaPlayerEvents.PLAYBACK_RATE_CHANGED, _onPlaybackRateChanged, instance);\n eventBus.on(MediaPlayerEvents.MANIFEST_LOADED, _onManifestLoaded, instance);\n eventBus.on(MediaPlayerEvents.BUFFER_LEVEL_STATE_CHANGED, _onBufferLevelStateChanged, instance);\n eventBus.on(MediaPlayerEvents.PLAYBACK_SEEKED, _onPlaybackSeeked, instance);\n eventBus.on(MediaPlayerEvents.PERIOD_SWITCH_COMPLETED, _onPeriodSwitchComplete, instance);\n }\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.abrController) {\n abrController = config.abrController;\n }\n\n if (config.dashMetrics) {\n dashMetrics = config.dashMetrics;\n }\n\n if (config.playbackController) {\n playbackController = config.playbackController;\n }\n }\n\n function _resetInitialSettings() {\n internalData = {\n pr: 1,\n nor: null,\n st: null,\n sf: null,\n sid: `${Utils.generateUuid()}`,\n cid: null\n };\n _bufferLevelStarved = {};\n _isStartup = {};\n _initialMediaRequestsDone = {};\n _updateStreamProcessors();\n }\n\n function _onPeriodSwitchComplete() {\n _updateStreamProcessors();\n }\n\n function _updateStreamProcessors() {\n if (!playbackController) return;\n const streamController = playbackController.getStreamController();\n if (!streamController) return;\n if (typeof streamController.getActiveStream !== 'function') return;\n const activeStream = streamController.getActiveStream();\n if (!activeStream) return;\n streamProcessors = activeStream.getProcessors();\n }\n\n function getQueryParameter(request) {\n try {\n if (settings.get().streaming.cmcd && settings.get().streaming.cmcd.enabled) {\n const cmcdData = _getCmcdData(request);\n const finalPayloadString = _buildFinalString(cmcdData);\n\n eventBus.trigger(MetricsReportingEvents.CMCD_DATA_GENERATED, {\n url: request.url,\n mediaType: request.mediaType,\n cmcdData,\n cmcdString: finalPayloadString\n });\n return {\n key: CMCD_REQUEST_FIELD_NAME,\n value: finalPayloadString\n };\n }\n\n return null;\n } catch (e) {\n return null;\n }\n }\n\n function _getCmcdData(request) {\n try {\n let cmcdData = null;\n\n if (request.type === HTTPRequest.MPD_TYPE) {\n return _getCmcdDataForMpd(request);\n } else if (request.type === HTTPRequest.MEDIA_SEGMENT_TYPE) {\n _initForMediaType(request.mediaType);\n return _getCmcdDataForMediaSegment(request);\n } else if (request.type === HTTPRequest.INIT_SEGMENT_TYPE) {\n return _getCmcdDataForInitSegment(request);\n } else if (request.type === HTTPRequest.OTHER_TYPE || request.type === HTTPRequest.XLINK_EXPANSION_TYPE) {\n return _getCmcdDataForOther(request);\n } else if (request.type === HTTPRequest.LICENSE) {\n return _getCmcdDataForLicense(request);\n }\n\n return cmcdData;\n } catch (e) {\n return null;\n }\n }\n\n function _getCmcdDataForLicense(request) {\n const data = _getGenericCmcdData(request);\n\n data.ot = OBJECT_TYPES.ENCRYPTION_KEY;\n\n return data;\n }\n\n function _getCmcdDataForMpd() {\n const data = _getGenericCmcdData();\n\n data.ot = `${OBJECT_TYPES.MANIFEST}`;\n\n return data;\n }\n\n function _getCmcdDataForMediaSegment(request) {\n const data = _getGenericCmcdData();\n const encodedBitrate = _getBitrateByRequest(request);\n const d = _getObjectDurationByRequest(request);\n const mtp = _getMeasuredThroughputByType(request.mediaType);\n const dl = _getDeadlineByType(request.mediaType);\n const bl = _getBufferLevelByType(request.mediaType);\n const tb = _getTopBitrateByType(request.mediaType);\n const pr = internalData.pr;\n\n const nextRequest = _probeNextRequest(request.mediaType);\n\n let ot;\n if (request.mediaType === Constants.VIDEO) ot = OBJECT_TYPES.VIDEO;\n if (request.mediaType === Constants.AUDIO) ot = OBJECT_TYPES.AUDIO;\n if (request.mediaType === Constants.FRAGMENTED_TEXT) {\n if (request.mediaInfo.mimeType === 'application/mp4') {\n ot = OBJECT_TYPES.ISOBMFF_TEXT_TRACK;\n } else {\n ot = OBJECT_TYPES.CAPTION;\n }\n }\n\n let rtp = settings.get().streaming.cmcd.rtp;\n if (!rtp) {\n rtp = _calculateRtp(request);\n }\n data.rtp = rtp;\n\n if (nextRequest) {\n if (request.url !== nextRequest.url) {\n let url = new URL(nextRequest.url);\n data.nor = url.pathname;\n } else if (nextRequest.range) {\n data.nrr = nextRequest.range;\n }\n }\n\n if (encodedBitrate) {\n data.br = encodedBitrate;\n }\n\n if (ot) {\n data.ot = ot;\n }\n\n if (!isNaN(d)) {\n data.d = d;\n }\n\n if (!isNaN(mtp)) {\n data.mtp = mtp;\n }\n\n if (!isNaN(dl)) {\n data.dl = dl;\n }\n\n if (!isNaN(bl)) {\n data.bl = bl;\n }\n\n if (!isNaN(tb)) {\n data.tb = tb;\n }\n\n if (!isNaN(pr) && pr !== 1) {\n data.pr = pr;\n }\n\n if (_bufferLevelStarved[request.mediaType]) {\n data.bs = true;\n _bufferLevelStarved[request.mediaType] = false;\n }\n\n if (_isStartup[request.mediaType] || !_initialMediaRequestsDone[request.mediaType]) {\n data.su = true;\n _isStartup[request.mediaType] = false;\n _initialMediaRequestsDone[request.mediaType] = true;\n }\n\n return data;\n }\n\n function _initForMediaType(mediaType) {\n\n if (!_initialMediaRequestsDone.hasOwnProperty(mediaType)) {\n _initialMediaRequestsDone[mediaType] = false;\n }\n\n if (!_isStartup.hasOwnProperty(mediaType)) {\n _isStartup[mediaType] = false;\n }\n\n if (!_bufferLevelStarved.hasOwnProperty(mediaType)) {\n _bufferLevelStarved[mediaType] = false;\n }\n }\n\n function _getCmcdDataForInitSegment() {\n const data = _getGenericCmcdData();\n\n data.ot = `${OBJECT_TYPES.INIT}`;\n data.su = true;\n\n return data;\n }\n\n function _getCmcdDataForOther() {\n const data = _getGenericCmcdData();\n\n data.ot = `${OBJECT_TYPES.OTHER}`;\n\n return data;\n }\n\n\n function _getGenericCmcdData() {\n const data = {};\n\n let cid = settings.get().streaming.cmcd.cid ? settings.get().streaming.cmcd.cid : internalData.cid;\n\n data.v = CMCD_VERSION;\n data.sid = settings.get().streaming.cmcd.sid ? settings.get().streaming.cmcd.sid : internalData.sid;\n\n data.sid = `${data.sid}`;\n\n if (cid) {\n data.cid = `${cid}`;\n }\n\n if (!isNaN(internalData.pr) && internalData.pr !== 1 && internalData.pr !== null) {\n data.pr = internalData.pr;\n }\n\n if (internalData.st) {\n data.st = internalData.st;\n }\n\n if (internalData.sf) {\n data.sf = internalData.sf;\n }\n\n return data;\n }\n\n function _getBitrateByRequest(request) {\n try {\n const quality = request.quality;\n const bitrateList = request.mediaInfo.bitrateList;\n\n return parseInt(bitrateList[quality].bandwidth / 1000);\n } catch (e) {\n return null;\n }\n }\n\n function _getTopBitrateByType(mediaType) {\n try {\n const info = abrController.getTopBitrateInfoFor(mediaType);\n return Math.round(info.bitrate / 1000);\n } catch (e) {\n return null;\n }\n }\n\n function _getObjectDurationByRequest(request) {\n try {\n return !isNaN(request.duration) ? Math.round(request.duration * 1000) : null;\n } catch (e) {\n return null;\n }\n }\n\n function _getMeasuredThroughputByType(mediaType) {\n try {\n return parseInt(abrController.getThroughputHistory().getSafeAverageThroughput(mediaType) / 100) * 100;\n } catch (e) {\n return null;\n }\n }\n\n function _getDeadlineByType(mediaType) {\n try {\n const playbackRate = internalData.pr;\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n\n if (!isNaN(playbackRate) && !isNaN(bufferLevel)) {\n return parseInt((bufferLevel / playbackRate) * 10) * 100;\n }\n\n return null;\n } catch (e) {\n return null;\n }\n }\n\n function _getBufferLevelByType(mediaType) {\n try {\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n\n if (!isNaN(bufferLevel)) {\n return parseInt(bufferLevel * 10) * 100;\n }\n\n return null;\n } catch (e) {\n return null;\n }\n }\n\n function _onPlaybackRateChanged(data) {\n try {\n internalData.pr = data.playbackRate;\n } catch (e) {\n\n }\n }\n\n function _onManifestLoaded(data) {\n try {\n const isDynamic = dashManifestModel.getIsDynamic(data.data);\n const st = isDynamic ? `${STREAM_TYPES.LIVE}` : `${STREAM_TYPES.VOD}`;\n const sf = data.protocol && data.protocol === 'MSS' ? `${STREAMING_FORMATS.MSS}` : `${STREAMING_FORMATS.DASH}`;\n\n internalData.st = `${st}`;\n internalData.sf = `${sf}`;\n } catch (e) {\n }\n }\n\n function _onBufferLevelStateChanged(data) {\n try {\n if (data.state && data.mediaType) {\n if (data.state === MediaPlayerEvents.BUFFER_EMPTY) {\n\n if (!_bufferLevelStarved[data.mediaType]) {\n _bufferLevelStarved[data.mediaType] = true;\n }\n if (!_isStartup[data.mediaType]) {\n _isStartup[data.mediaType] = true;\n }\n }\n }\n } catch (e) {\n\n }\n }\n\n function _onPlaybackSeeked() {\n for (let key in _bufferLevelStarved) {\n if (_bufferLevelStarved.hasOwnProperty(key)) {\n _bufferLevelStarved[key] = true;\n }\n }\n\n for (let key in _isStartup) {\n if (_isStartup.hasOwnProperty(key)) {\n _isStartup[key] = true;\n }\n }\n }\n\n function _buildFinalString(cmcdData) {\n try {\n if (!cmcdData) {\n return null;\n }\n const keys = Object.keys(cmcdData).sort((a, b) => a.localeCompare(b));\n const length = keys.length;\n\n let cmcdString = keys.reduce((acc, key, index) => {\n if (key === 'v' && cmcdData[key] === 1) return acc; // Version key should only be reported if it is != 1\n if (typeof cmcdData[key] === 'string' && (key !== 'ot' || key !== 'sf' || key !== 'st')) {\n let string = cmcdData[key].replace(/\"/g, '\\\"');\n acc += `${key}=\"${string}\"`;\n } else {\n acc += `${key}=${cmcdData[key]}`;\n }\n if (index < length - 1) {\n acc += ',';\n }\n\n return acc;\n }, '');\n\n cmcdString = cmcdString.replace(/=true/g, '');\n\n return cmcdString;\n } catch (e) {\n return null;\n }\n }\n\n function _probeNextRequest(mediaType) {\n if (!streamProcessors || streamProcessors.length === 0) return;\n for (let streamProcessor of streamProcessors) {\n if (streamProcessor.getType() === mediaType) {\n return streamProcessor.probeNextRequest();\n }\n }\n }\n\n function _calculateRtp(request) {\n // Get the values we need\n let playbackRate = playbackController.getPlaybackRate();\n if (!playbackRate) playbackRate = 1;\n let { quality, mediaType, mediaInfo, duration } = request;\n let currentBufferLevel = _getBufferLevelByType(mediaType);\n if (currentBufferLevel === 0) currentBufferLevel = 500;\n let bitrate = mediaInfo.bitrateList[quality].bandwidth;\n\n // Calculate RTP\n let segmentSize = (bitrate * duration) / 1000; // Calculate file size in kilobits\n let timeToLoad = (currentBufferLevel / playbackRate) / 1000; // Calculate time available to load file in seconds\n let minBandwidth = segmentSize / timeToLoad; // Calculate the exact bandwidth required\n let rtpSafetyFactor = settings.get().streaming.cmcd.rtpSafetyFactor && !isNaN(settings.get().streaming.cmcd.rtpSafetyFactor) ? settings.get().streaming.cmcd.rtpSafetyFactor : RTP_SAFETY_FACTOR;\n let maxBandwidth = minBandwidth * rtpSafetyFactor; // Include a safety buffer\n\n let rtp = (parseInt(maxBandwidth / 100) + 1) * 100; // Round to the next multiple of 100\n\n return rtp;\n }\n\n function reset() {\n eventBus.off(MediaPlayerEvents.PLAYBACK_RATE_CHANGED, _onPlaybackRateChanged, this);\n eventBus.off(MediaPlayerEvents.MANIFEST_LOADED, _onManifestLoaded, this);\n eventBus.off(MediaPlayerEvents.BUFFER_LEVEL_STATE_CHANGED, _onBufferLevelStateChanged, instance);\n eventBus.off(MediaPlayerEvents.PLAYBACK_SEEKED, _onPlaybackSeeked, instance);\n\n _resetInitialSettings();\n }\n\n instance = {\n getQueryParameter,\n setConfig,\n reset,\n initialize\n };\n\n setup();\n\n return instance;\n}\n\nCmcdModel.__dashjs_factory_name = 'CmcdModel';\nexport default FactoryMaker.getSingletonFactory(CmcdModel);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport FragmentRequest from '../vo/FragmentRequest';\n\nconst FRAGMENT_MODEL_LOADING = 'loading';\nconst FRAGMENT_MODEL_EXECUTED = 'executed';\nconst FRAGMENT_MODEL_CANCELED = 'canceled';\nconst FRAGMENT_MODEL_FAILED = 'failed';\n\nfunction FragmentModel(config) {\n\n config = config || {};\n const eventBus = config.eventBus;\n const events = config.events;\n const dashMetrics = config.dashMetrics;\n const fragmentLoader = config.fragmentLoader;\n const debug = config.debug;\n const streamInfo = config.streamInfo;\n const type = config.type;\n\n let instance,\n logger,\n executedRequests,\n loadingRequests;\n\n function setup() {\n logger = debug.getLogger(instance);\n resetInitialSettings();\n eventBus.on(events.LOADING_COMPLETED, onLoadingCompleted, instance);\n eventBus.on(events.LOADING_DATA_PROGRESS, onLoadingInProgress, instance);\n eventBus.on(events.LOADING_ABANDONED, onLoadingAborted, instance);\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function getType() {\n return type;\n }\n\n function isFragmentLoaded(request) {\n const isEqualComplete = function (req1, req2) {\n return ((req1.action === FragmentRequest.ACTION_COMPLETE) && (req1.action === req2.action));\n };\n\n const isEqualMedia = function (req1, req2) {\n return !isNaN(req1.index) && (req1.startTime === req2.startTime) && (req1.adaptationIndex === req2.adaptationIndex) && (req1.type === req2.type);\n };\n\n const isEqualInit = function (req1, req2) {\n return isNaN(req1.index) && isNaN(req2.index) && (req1.quality === req2.quality);\n };\n\n const check = function (requests) {\n let isLoaded = false;\n\n requests.some(req => {\n if (isEqualMedia(request, req) || isEqualInit(request, req) || isEqualComplete(request, req)) {\n isLoaded = true;\n return isLoaded;\n }\n });\n return isLoaded;\n };\n\n if (!request) {\n return false;\n }\n\n return check(executedRequests);\n }\n\n function isFragmentLoadedOrPending(request) {\n let isLoaded = false;\n let i = 0;\n let req;\n\n // First, check if the fragment has already been loaded\n isLoaded = isFragmentLoaded(request);\n\n // Then, check if the fragment is about to be loeaded\n if (!isLoaded) {\n for (i = 0; i < loadingRequests.length; i++) {\n req = loadingRequests[i];\n if ((request.url === req.url) && (request.startTime === req.startTime)) {\n isLoaded = true;\n }\n }\n }\n\n return isLoaded;\n }\n\n /**\n *\n * Gets an array of {@link FragmentRequest} objects\n *\n * @param {Object} filter The object with properties by which the method filters the requests to be returned.\n * the only mandatory property is state, which must be a value from\n * other properties should match the properties of {@link FragmentRequest}. E.g.:\n * getRequests({state: FragmentModel.FRAGMENT_MODEL_EXECUTED, quality: 0}) - returns\n * all the requests from executedRequests array where requests.quality = filter.quality\n *\n * @returns {Array}\n * @memberof FragmentModel#\n */\n function getRequests(filter) {\n const states = filter ? filter.state instanceof Array ? filter.state : [filter.state] : [];\n\n let filteredRequests = [];\n states.forEach(state => {\n const requests = getRequestsForState(state);\n filteredRequests = filteredRequests.concat(filterRequests(requests, filter));\n });\n\n return filteredRequests;\n }\n\n function getRequestThreshold(req) {\n return isNaN(req.duration) ? 0.25 : Math.min(req.duration / 8, 0.5);\n }\n\n function removeExecutedRequestsBeforeTime(time) {\n executedRequests = executedRequests.filter(req => {\n const threshold = getRequestThreshold(req);\n return isNaN(req.startTime) || (time !== undefined ? req.startTime >= time - threshold : false);\n });\n }\n\n function removeExecutedRequestsAfterTime(time) {\n executedRequests = executedRequests.filter(req => {\n return isNaN(req.startTime) || (time !== undefined ? req.startTime < time : false);\n });\n }\n\n function removeExecutedRequestsInTimeRange(start, end) {\n if (end <= start + 0.5) {\n return;\n }\n\n executedRequests = executedRequests.filter(req => {\n const threshold = getRequestThreshold(req);\n return (isNaN(req.startTime) || req.startTime >= (end - threshold)) ||\n (isNaN(req.duration) || (req.startTime + req.duration) <= (start + threshold));\n });\n }\n\n // Remove requests that are not \"represented\" by any of buffered ranges\n function syncExecutedRequestsWithBufferedRange(bufferedRanges, streamDuration) {\n if (!bufferedRanges || bufferedRanges.length === 0) {\n removeExecutedRequestsBeforeTime();\n return;\n }\n\n let start = 0;\n for (let i = 0, ln = bufferedRanges.length; i < ln; i++) {\n removeExecutedRequestsInTimeRange(start, bufferedRanges.start(i));\n start = bufferedRanges.end(i);\n }\n if (streamDuration > 0) {\n removeExecutedRequestsInTimeRange(start, streamDuration);\n }\n }\n\n function abortRequests() {\n logger.debug('abort requests');\n fragmentLoader.abort();\n loadingRequests = [];\n }\n\n function executeRequest(request) {\n switch (request.action) {\n case FragmentRequest.ACTION_COMPLETE:\n executedRequests.push(request);\n addSchedulingInfoMetrics(request, FRAGMENT_MODEL_EXECUTED);\n logger.debug('STREAM_COMPLETED');\n eventBus.trigger(events.STREAM_COMPLETED,\n { request: request },\n { streamId: request.mediaInfo.streamInfo.id, mediaType: request.mediaType }\n );\n break;\n case FragmentRequest.ACTION_DOWNLOAD:\n addSchedulingInfoMetrics(request, FRAGMENT_MODEL_LOADING);\n loadingRequests.push(request);\n loadCurrentFragment(request);\n break;\n default:\n logger.warn('Unknown request action.');\n }\n }\n\n function loadCurrentFragment(request) {\n eventBus.trigger(events.FRAGMENT_LOADING_STARTED,\n { request: request },\n { streamId: streamInfo.id, mediaType: type }\n );\n fragmentLoader.load(request);\n }\n\n function getRequestForTime(arr, time, threshold) {\n // loop through the executed requests and pick the one for which the playback interval matches the given time\n const lastIdx = arr.length - 1;\n for (let i = lastIdx; i >= 0; i--) {\n const req = arr[i];\n const start = req.startTime;\n const end = start + req.duration;\n threshold = !isNaN(threshold) ? threshold : getRequestThreshold(req);\n if ((!isNaN(start) && !isNaN(end) && ((time + threshold) >= start) && ((time - threshold) < end)) || (isNaN(start) && isNaN(time))) {\n return req;\n }\n }\n return null;\n }\n\n function filterRequests(arr, filter) {\n // for time use a specific filtration function\n if (filter.hasOwnProperty('time')) {\n return [getRequestForTime(arr, filter.time, filter.threshold)];\n }\n\n return arr.filter(request => {\n for (const prop in filter) {\n if (prop === 'state') continue;\n if (filter.hasOwnProperty(prop) && request[prop] != filter[prop]) return false;\n }\n\n return true;\n });\n }\n\n function getRequestsForState(state) {\n let requests;\n switch (state) {\n case FRAGMENT_MODEL_LOADING:\n requests = loadingRequests;\n break;\n case FRAGMENT_MODEL_EXECUTED:\n requests = executedRequests;\n break;\n default:\n requests = [];\n }\n return requests;\n }\n\n function addSchedulingInfoMetrics(request, state) {\n dashMetrics.addSchedulingInfo(request, state);\n dashMetrics.addRequestsQueue(request.mediaType, loadingRequests, executedRequests);\n }\n\n function onLoadingCompleted(e) {\n if (e.sender !== fragmentLoader) return;\n\n loadingRequests.splice(loadingRequests.indexOf(e.request), 1);\n\n if (e.response && !e.error) {\n executedRequests.push(e.request);\n }\n\n addSchedulingInfoMetrics(e.request, e.error ? FRAGMENT_MODEL_FAILED : FRAGMENT_MODEL_EXECUTED);\n\n eventBus.trigger(events.FRAGMENT_LOADING_COMPLETED,\n {\n request: e.request,\n response: e.response,\n error: e.error,\n sender: this\n },\n { streamId: streamInfo.id, mediaType: type }\n );\n }\n\n function onLoadingInProgress(e) {\n if (e.sender !== fragmentLoader) return;\n\n eventBus.trigger(events.FRAGMENT_LOADING_PROGRESS,\n {\n request: e.request,\n response: e.response,\n error: e.error,\n sender: this\n },\n { streamId: streamInfo.id, mediaType: type }\n );\n }\n\n function onLoadingAborted(e) {\n if (e.sender !== fragmentLoader) return;\n\n eventBus.trigger(events.FRAGMENT_LOADING_ABANDONED,\n { request: e.request },\n { streamId: streamInfo.id, mediaType: type }\n );\n }\n\n function resetInitialSettings() {\n executedRequests = [];\n loadingRequests = [];\n }\n\n function reset() {\n eventBus.off(events.LOADING_COMPLETED, onLoadingCompleted, this);\n eventBus.off(events.LOADING_DATA_PROGRESS, onLoadingInProgress, this);\n eventBus.off(events.LOADING_ABANDONED, onLoadingAborted, this);\n\n if (fragmentLoader) {\n fragmentLoader.reset();\n }\n resetInitialSettings();\n }\n\n function addExecutedRequest(request) {\n executedRequests.push(request);\n }\n\n instance = {\n getStreamId: getStreamId,\n getType: getType,\n getRequests: getRequests,\n isFragmentLoaded: isFragmentLoaded,\n isFragmentLoadedOrPending: isFragmentLoadedOrPending,\n removeExecutedRequestsBeforeTime: removeExecutedRequestsBeforeTime,\n removeExecutedRequestsAfterTime: removeExecutedRequestsAfterTime,\n syncExecutedRequestsWithBufferedRange: syncExecutedRequestsWithBufferedRange,\n abortRequests: abortRequests,\n executeRequest: executeRequest,\n reset: reset,\n addExecutedRequest: addExecutedRequest\n };\n\n setup();\n return instance;\n}\n\nFragmentModel.__dashjs_factory_name = 'FragmentModel';\nconst factory = FactoryMaker.getClassFactory(FragmentModel);\nfactory.FRAGMENT_MODEL_LOADING = FRAGMENT_MODEL_LOADING;\nfactory.FRAGMENT_MODEL_EXECUTED = FRAGMENT_MODEL_EXECUTED;\nfactory.FRAGMENT_MODEL_CANCELED = FRAGMENT_MODEL_CANCELED;\nfactory.FRAGMENT_MODEL_FAILED = FRAGMENT_MODEL_FAILED;\nFactoryMaker.updateClassFactory(FragmentModel.__dashjs_factory_name, factory);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\n\nfunction ManifestModel() {\n\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n\n let instance,\n manifest;\n\n function getValue() {\n return manifest;\n }\n\n function setValue(value) {\n manifest = value;\n if (value) {\n eventBus.trigger(Events.MANIFEST_LOADED, { data: value });\n }\n }\n\n instance = {\n getValue: getValue,\n setValue: setValue\n };\n\n return instance;\n}\n\nManifestModel.__dashjs_factory_name = 'ManifestModel';\nexport default FactoryMaker.getSingletonFactory(ManifestModel);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport UTCTiming from '../../dash/vo/UTCTiming';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Constants from '../constants/Constants';\nimport ABRRulesCollection from '../rules/abr/ABRRulesCollection';\nimport Settings from '../../core/Settings';\nimport {checkParameterType} from '../utils/SupervisorTools';\n\n\nconst DEFAULT_MIN_BUFFER_TIME = 12;\nconst DEFAULT_MIN_BUFFER_TIME_FAST_SWITCH = 20;\n\nconst DEFAULT_LOW_LATENCY_LIVE_DELAY = 3.0;\nconst LOW_LATENCY_REDUCTION_FACTOR = 10;\nconst LOW_LATENCY_MULTIPLY_FACTOR = 5;\nconst DEFAULT_LIVE_LATENCY_CATCHUP_THRESHOLD_FACTOR = 4;\nconst MINIMUM_LIVE_LATENCY_CATCHUP = 5;\n\nconst DEFAULT_XHR_WITH_CREDENTIALS = false;\n\nfunction MediaPlayerModel() {\n\n let instance,\n UTCTimingSources,\n xhrWithCredentials,\n customABRRule;\n\n const DEFAULT_UTC_TIMING_SOURCE = {\n scheme: 'urn:mpeg:dash:utc:http-xsdate:2014',\n value: 'http://time.akamai.com/?iso&ms'\n };\n const context = this.context;\n const settings = Settings(context).getInstance();\n\n function setup() {\n UTCTimingSources = [];\n xhrWithCredentials = {\n default: DEFAULT_XHR_WITH_CREDENTIALS\n };\n customABRRule = [];\n }\n\n //TODO Should we use Object.define to have setters/getters? makes more readable code on other side.\n function findABRCustomRuleIndex(rulename) {\n let i;\n for (i = 0; i < customABRRule.length; i++) {\n if (customABRRule[i].rulename === rulename) {\n return i;\n }\n }\n return -1;\n }\n\n function getABRCustomRules() {\n return customABRRule;\n }\n\n function addABRCustomRule(type, rulename, rule) {\n if (typeof type !== 'string' || (type !== ABRRulesCollection.ABANDON_FRAGMENT_RULES && type !== ABRRulesCollection.QUALITY_SWITCH_RULES) ||\n typeof rulename !== 'string') {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n let index = findABRCustomRuleIndex(rulename);\n if (index === -1) {\n // add rule\n customABRRule.push({\n type: type,\n rulename: rulename,\n rule: rule\n });\n } else {\n // update rule\n customABRRule[index].type = type;\n customABRRule[index].rule = rule;\n }\n }\n\n function removeABRCustomRule(rulename) {\n if (rulename) {\n let index = findABRCustomRuleIndex(rulename);\n //if no rulename custom rule has been found, do nothing\n if (index !== -1) {\n // remove rule\n customABRRule.splice(index, 1);\n }\n } else {\n //if no rulename is defined, remove all ABR custome rules\n customABRRule = [];\n }\n }\n\n function getStableBufferTime() {\n if (settings.get().streaming.lowLatencyEnabled) {\n return getLiveDelay() * 0.6;\n }\n\n const stableBufferTime = settings.get().streaming.stableBufferTime;\n return stableBufferTime > -1 ? stableBufferTime : settings.get().streaming.fastSwitchEnabled ? DEFAULT_MIN_BUFFER_TIME_FAST_SWITCH : DEFAULT_MIN_BUFFER_TIME;\n }\n\n function getRetryAttemptsForType(type) {\n const lowLatencyMultiplyFactor = !isNaN(settings.get().streaming.retryAttempts.lowLatencyMultiplyFactor) ? settings.get().streaming.retryAttempts.lowLatencyMultiplyFactor : LOW_LATENCY_MULTIPLY_FACTOR;\n\n return settings.get().streaming.lowLatencyEnabled ? settings.get().streaming.retryAttempts[type] * lowLatencyMultiplyFactor : settings.get().streaming.retryAttempts[type];\n }\n\n function getRetryIntervalsForType(type) {\n const lowLatencyReductionFactor = !isNaN(settings.get().streaming.retryIntervals.lowLatencyReductionFactor) ? settings.get().streaming.retryIntervals.lowLatencyReductionFactor : LOW_LATENCY_REDUCTION_FACTOR;\n\n return settings.get().streaming.lowLatencyEnabled ? settings.get().streaming.retryIntervals[type] / lowLatencyReductionFactor : settings.get().streaming.retryIntervals[type];\n }\n\n function getLiveDelay() {\n if (settings.get().streaming.lowLatencyEnabled) {\n return settings.get().streaming.liveDelay || DEFAULT_LOW_LATENCY_LIVE_DELAY;\n }\n return settings.get().streaming.liveDelay;\n }\n\n function getLiveCatchupLatencyThreshold() {\n try {\n const liveCatchupLatencyThreshold = settings.get().streaming.liveCatchup.latencyThreshold;\n const liveDelay = getLiveDelay();\n\n if (liveCatchupLatencyThreshold !== null && !isNaN(liveCatchupLatencyThreshold)) {\n return Math.max(liveCatchupLatencyThreshold, liveDelay);\n }\n\n\n const liveCatchupMinDrift = settings.get().streaming.liveCatchup.minDrift;\n const maximumLiveDelay = !isNaN(liveDelay) && liveDelay ? !isNaN(liveCatchupMinDrift) ? settings.get().streaming.liveCatchup.minDrift + getLiveDelay() : getLiveDelay() : NaN;\n\n if (maximumLiveDelay && !isNaN(maximumLiveDelay)) {\n return Math.max(maximumLiveDelay * DEFAULT_LIVE_LATENCY_CATCHUP_THRESHOLD_FACTOR, MINIMUM_LIVE_LATENCY_CATCHUP);\n }\n\n return NaN;\n\n } catch (e) {\n return NaN;\n }\n }\n\n function addUTCTimingSource(schemeIdUri, value) {\n removeUTCTimingSource(schemeIdUri, value); //check if it already exists and remove if so.\n let vo = new UTCTiming();\n vo.schemeIdUri = schemeIdUri;\n vo.value = value;\n UTCTimingSources.push(vo);\n }\n\n function getUTCTimingSources() {\n return UTCTimingSources;\n }\n\n function removeUTCTimingSource(schemeIdUri, value) {\n checkParameterType(schemeIdUri, 'string');\n checkParameterType(value, 'string');\n UTCTimingSources.forEach(function (obj, idx) {\n if (obj.schemeIdUri === schemeIdUri && obj.value === value) {\n UTCTimingSources.splice(idx, 1);\n }\n });\n }\n\n function clearDefaultUTCTimingSources() {\n UTCTimingSources = [];\n }\n\n function restoreDefaultUTCTimingSources() {\n addUTCTimingSource(DEFAULT_UTC_TIMING_SOURCE.scheme, DEFAULT_UTC_TIMING_SOURCE.value);\n }\n\n function setXHRWithCredentialsForType(type, value) {\n if (!type) {\n Object.keys(xhrWithCredentials).forEach(key => {\n setXHRWithCredentialsForType(key, value);\n });\n } else {\n xhrWithCredentials[type] = !!value;\n }\n }\n\n function getXHRWithCredentialsForType(type) {\n const useCreds = xhrWithCredentials[type];\n\n return useCreds === undefined ? xhrWithCredentials.default : useCreds;\n }\n\n function getDefaultUtcTimingSource() {\n return DEFAULT_UTC_TIMING_SOURCE;\n }\n\n function reset() {\n //TODO need to figure out what props to persist across sessions and which to reset if any.\n //setup();\n }\n\n instance = {\n getABRCustomRules,\n addABRCustomRule,\n removeABRCustomRule,\n getStableBufferTime,\n getRetryAttemptsForType,\n getRetryIntervalsForType,\n getLiveDelay,\n getLiveCatchupLatencyThreshold,\n addUTCTimingSource,\n removeUTCTimingSource,\n getUTCTimingSources,\n clearDefaultUTCTimingSources,\n restoreDefaultUTCTimingSources,\n setXHRWithCredentialsForType,\n getXHRWithCredentialsForType,\n getDefaultUtcTimingSource,\n reset\n };\n\n setup();\n\n return instance;\n}\n\n//TODO see if you can move this and not export and just getter to get default value.\nMediaPlayerModel.__dashjs_factory_name = 'MediaPlayerModel';\nexport default FactoryMaker.getSingletonFactory(MediaPlayerModel);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport UTCTiming from '../../dash/vo/UTCTiming';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Constants from '../constants/Constants';\nimport ABRRulesCollection from '../rules/abr/ABRRulesCollection';\nimport Settings from '../../core/Settings';\nimport {checkParameterType} from '../utils/SupervisorTools';\n\n\nconst DEFAULT_MIN_BUFFER_TIME = 12;\nconst DEFAULT_MIN_BUFFER_TIME_FAST_SWITCH = 20;\n\nconst DEFAULT_LOW_LATENCY_LIVE_DELAY = 3.0;\nconst LOW_LATENCY_REDUCTION_FACTOR = 10;\nconst LOW_LATENCY_MULTIPLY_FACTOR = 5;\nconst DEFAULT_LIVE_LATENCY_CATCHUP_THRESHOLD_FACTOR = 4;\nconst MINIMUM_LIVE_LATENCY_CATCHUP = 5;\n\nconst DEFAULT_XHR_WITH_CREDENTIALS = false;\n\nfunction MediaPlayerModel() {\n\n let instance,\n UTCTimingSources,\n xhrWithCredentials,\n customABRRule;\n\n const context = this.context;\n const settings = Settings(context).getInstance();\n\n function setup() {\n UTCTimingSources = [];\n xhrWithCredentials = {\n default: DEFAULT_XHR_WITH_CREDENTIALS\n };\n customABRRule = [];\n }\n\n //TODO Should we use Object.define to have setters/getters? makes more readable code on other side.\n function findABRCustomRuleIndex(rulename) {\n let i;\n for (i = 0; i < customABRRule.length; i++) {\n if (customABRRule[i].rulename === rulename) {\n return i;\n }\n }\n return -1;\n }\n\n function getABRCustomRules() {\n return customABRRule;\n }\n\n function addABRCustomRule(type, rulename, rule) {\n if (typeof type !== 'string' || (type !== ABRRulesCollection.ABANDON_FRAGMENT_RULES && type !== ABRRulesCollection.QUALITY_SWITCH_RULES) ||\n typeof rulename !== 'string') {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n let index = findABRCustomRuleIndex(rulename);\n if (index === -1) {\n // add rule\n customABRRule.push({\n type: type,\n rulename: rulename,\n rule: rule\n });\n } else {\n // update rule\n customABRRule[index].type = type;\n customABRRule[index].rule = rule;\n }\n }\n\n function removeABRCustomRule(rulename) {\n if (rulename) {\n let index = findABRCustomRuleIndex(rulename);\n //if no rulename custom rule has been found, do nothing\n if (index !== -1) {\n // remove rule\n customABRRule.splice(index, 1);\n }\n } else {\n //if no rulename is defined, remove all ABR custome rules\n customABRRule = [];\n }\n }\n\n function getStableBufferTime() {\n if (settings.get().streaming.lowLatencyEnabled) {\n return getLiveDelay() * 0.6;\n }\n\n const stableBufferTime = settings.get().streaming.stableBufferTime;\n return stableBufferTime > -1 ? stableBufferTime : settings.get().streaming.fastSwitchEnabled ? DEFAULT_MIN_BUFFER_TIME_FAST_SWITCH : DEFAULT_MIN_BUFFER_TIME;\n }\n\n function getRetryAttemptsForType(type) {\n const lowLatencyMultiplyFactor = !isNaN(settings.get().streaming.retryAttempts.lowLatencyMultiplyFactor) ? settings.get().streaming.retryAttempts.lowLatencyMultiplyFactor : LOW_LATENCY_MULTIPLY_FACTOR;\n\n return settings.get().streaming.lowLatencyEnabled ? settings.get().streaming.retryAttempts[type] * lowLatencyMultiplyFactor : settings.get().streaming.retryAttempts[type];\n }\n\n function getRetryIntervalsForType(type) {\n const lowLatencyReductionFactor = !isNaN(settings.get().streaming.retryIntervals.lowLatencyReductionFactor) ? settings.get().streaming.retryIntervals.lowLatencyReductionFactor : LOW_LATENCY_REDUCTION_FACTOR;\n\n return settings.get().streaming.lowLatencyEnabled ? settings.get().streaming.retryIntervals[type] / lowLatencyReductionFactor : settings.get().streaming.retryIntervals[type];\n }\n\n function getLiveDelay() {\n if (settings.get().streaming.lowLatencyEnabled) {\n return settings.get().streaming.liveDelay || DEFAULT_LOW_LATENCY_LIVE_DELAY;\n }\n return settings.get().streaming.liveDelay;\n }\n\n function getLiveCatchupLatencyThreshold() {\n try {\n const liveCatchupLatencyThreshold = settings.get().streaming.liveCatchup.latencyThreshold;\n const liveDelay = getLiveDelay();\n\n if (liveCatchupLatencyThreshold !== null && !isNaN(liveCatchupLatencyThreshold)) {\n return Math.max(liveCatchupLatencyThreshold, liveDelay);\n }\n\n\n const liveCatchupMinDrift = settings.get().streaming.liveCatchup.minDrift;\n const maximumLiveDelay = !isNaN(liveDelay) && liveDelay ? !isNaN(liveCatchupMinDrift) ? settings.get().streaming.liveCatchup.minDrift + getLiveDelay() : getLiveDelay() : NaN;\n\n if (maximumLiveDelay && !isNaN(maximumLiveDelay)) {\n return Math.max(maximumLiveDelay * DEFAULT_LIVE_LATENCY_CATCHUP_THRESHOLD_FACTOR, MINIMUM_LIVE_LATENCY_CATCHUP);\n }\n\n return NaN;\n\n } catch (e) {\n return NaN;\n }\n }\n\n function addUTCTimingSource(schemeIdUri, value) {\n removeUTCTimingSource(schemeIdUri, value); //check if it already exists and remove if so.\n let vo = new UTCTiming();\n vo.schemeIdUri = schemeIdUri;\n vo.value = value;\n UTCTimingSources.push(vo);\n }\n\n function getUTCTimingSources() {\n return UTCTimingSources;\n }\n\n function removeUTCTimingSource(schemeIdUri, value) {\n checkParameterType(schemeIdUri, 'string');\n checkParameterType(value, 'string');\n UTCTimingSources.forEach(function (obj, idx) {\n if (obj.schemeIdUri === schemeIdUri && obj.value === value) {\n UTCTimingSources.splice(idx, 1);\n }\n });\n }\n\n function clearDefaultUTCTimingSources() {\n UTCTimingSources = [];\n }\n\n function restoreDefaultUTCTimingSources() {\n let defaultUtcTimingSource = settings.get().streaming.utcSynchronization.defaultTimingSource;\n addUTCTimingSource(defaultUtcTimingSource.scheme, defaultUtcTimingSource.value);\n }\n\n function setXHRWithCredentialsForType(type, value) {\n if (!type) {\n Object.keys(xhrWithCredentials).forEach(key => {\n setXHRWithCredentialsForType(key, value);\n });\n } else {\n xhrWithCredentials[type] = !!value;\n }\n }\n\n function getXHRWithCredentialsForType(type) {\n const useCreds = xhrWithCredentials[type];\n\n return useCreds === undefined ? xhrWithCredentials.default : useCreds;\n }\n\n function getDefaultUtcTimingSource() {\n return settings.get().streaming.utcSynchronization.defaultTimingSource;\n }\n\n function reset() {\n //TODO need to figure out what props to persist across sessions and which to reset if any.\n //setup();\n }\n\n instance = {\n getABRCustomRules,\n addABRCustomRule,\n removeABRCustomRule,\n getStableBufferTime,\n getRetryAttemptsForType,\n getRetryIntervalsForType,\n getLiveDelay,\n getLiveCatchupLatencyThreshold,\n addUTCTimingSource,\n removeUTCTimingSource,\n getUTCTimingSources,\n clearDefaultUTCTimingSources,\n restoreDefaultUTCTimingSources,\n setXHRWithCredentialsForType,\n getXHRWithCredentialsForType,\n getDefaultUtcTimingSource,\n reset\n };\n\n setup();\n\n return instance;\n}\n\n//TODO see if you can move this and not export and just getter to get default value.\nMediaPlayerModel.__dashjs_factory_name = 'MediaPlayerModel';\nexport default FactoryMaker.getSingletonFactory(MediaPlayerModel);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport MetricsConstants from '../constants/MetricsConstants';\nimport MetricsList from '../vo/MetricsList';\nimport { HTTPRequest, HTTPRequestTrace } from '../vo/metrics/HTTPRequest';\nimport TrackSwitch from '../vo/metrics/RepresentationSwitch';\nimport BufferLevel from '../vo/metrics/BufferLevel';\nimport BufferState from '../vo/metrics/BufferState';\nimport DVRInfo from '../vo/metrics/DVRInfo';\nimport DroppedFrames from '../vo/metrics/DroppedFrames';\nimport { ManifestUpdate, ManifestUpdateStreamInfo, ManifestUpdateRepresentationInfo } from '../vo/metrics/ManifestUpdate';\nimport SchedulingInfo from '../vo/metrics/SchedulingInfo';\nimport EventBus from '../../core/EventBus';\nimport RequestsQueue from '../vo/metrics/RequestsQueue';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\n\nfunction MetricsModel(config) {\n\n config = config || {};\n\n const settings = config.settings;\n\n let context = this.context;\n let eventBus = EventBus(context).getInstance();\n\n let instance,\n streamMetrics;\n\n function setup() {\n streamMetrics = {};\n }\n\n function metricsChanged() {\n eventBus.trigger(Events.METRICS_CHANGED);\n }\n\n function metricChanged(mediaType) {\n eventBus.trigger(Events.METRIC_CHANGED, { mediaType: mediaType });\n metricsChanged();\n }\n\n function metricUpdated(mediaType, metricType, vo) {\n eventBus.trigger(Events.METRIC_UPDATED, { mediaType: mediaType, metric: metricType, value: vo });\n metricChanged(mediaType);\n }\n\n function metricAdded(mediaType, metricType, vo) {\n eventBus.trigger(Events.METRIC_ADDED, { mediaType: mediaType, metric: metricType, value: vo });\n metricChanged(mediaType);\n }\n\n function clearCurrentMetricsForType(type) {\n delete streamMetrics[type];\n metricChanged(type);\n }\n\n function clearAllCurrentMetrics() {\n streamMetrics = {};\n metricsChanged();\n }\n\n function getMetricsFor(type, readOnly) {\n let metrics = null;\n\n if (!type) {\n return metrics;\n }\n\n if (streamMetrics.hasOwnProperty(type)) {\n metrics = streamMetrics[type];\n } else if (!readOnly) {\n metrics = new MetricsList();\n streamMetrics[type] = metrics;\n }\n\n return metrics;\n }\n\n function pushMetrics(type, list, value) {\n let metrics = getMetricsFor(type);\n if (metrics !== null) {\n metrics[list].push(value);\n if ( metrics[list].length > settings.get().streaming.metricsMaxListDepth ) {\n metrics[list].shift();\n }\n }\n }\n\n function appendHttpTrace(httpRequest, s, d, b) {\n let vo = new HTTPRequestTrace();\n\n vo.s = s;\n vo.d = d;\n vo.b = b;\n\n httpRequest.trace.push(vo);\n\n if (!httpRequest.interval) {\n httpRequest.interval = 0;\n }\n\n httpRequest.interval += d;\n\n return vo;\n }\n\n function addHttpRequest(mediaType, tcpid, type, url, quality, actualurl, serviceLocation, range, trequest, tresponse, tfinish, responsecode, mediaduration, responseHeaders, traces) {\n let vo = new HTTPRequest();\n\n // ISO 23009-1 D.4.3 NOTE 2:\n // All entries for a given object will have the same URL and range\n // and so can easily be correlated. If there were redirects or\n // failures there will be one entry for each redirect/failure.\n // The redirect-to URL or alternative url (where multiple have been\n // provided in the MPD) will appear as the actualurl of the next\n // entry with the same url value.\n if (actualurl && (actualurl !== url)) {\n\n // given the above, add an entry for the original request\n addHttpRequest(\n mediaType,\n null,\n type,\n url,\n quality,\n null,\n null,\n range,\n trequest,\n null, // unknown\n null, // unknown\n null, // unknown, probably a 302\n mediaduration,\n null,\n null\n );\n\n vo.actualurl = actualurl;\n }\n\n vo.tcpid = tcpid;\n vo.type = type;\n vo.url = url;\n vo.range = range;\n vo.trequest = trequest;\n vo.tresponse = tresponse;\n vo.responsecode = responsecode;\n\n vo._tfinish = tfinish;\n vo._stream = mediaType;\n vo._mediaduration = mediaduration;\n vo._quality = quality;\n vo._responseHeaders = responseHeaders;\n vo._serviceLocation = serviceLocation;\n\n if (traces) {\n traces.forEach(trace => {\n appendHttpTrace(vo, trace.s, trace.d, trace.b);\n });\n } else {\n // The interval and trace shall be absent for redirect and failure records.\n delete vo.interval;\n delete vo.trace;\n }\n\n pushAndNotify(mediaType, MetricsConstants.HTTP_REQUEST, vo);\n }\n\n function addRepresentationSwitch(mediaType, t, mt, to, lto) {\n let vo = new TrackSwitch();\n\n vo.t = t;\n vo.mt = mt;\n vo.to = to;\n\n if (lto) {\n vo.lto = lto;\n } else {\n delete vo.lto;\n }\n\n pushAndNotify(mediaType, MetricsConstants.TRACK_SWITCH, vo);\n }\n\n function pushAndNotify(mediaType, metricType, metricObject) {\n pushMetrics(mediaType, metricType, metricObject);\n metricAdded(mediaType, metricType, metricObject);\n }\n\n function addBufferLevel(mediaType, t, level) {\n let vo = new BufferLevel();\n vo.t = t;\n vo.level = level;\n\n pushAndNotify(mediaType, MetricsConstants.BUFFER_LEVEL, vo);\n }\n\n function addBufferState(mediaType, state, target) {\n let vo = new BufferState();\n vo.target = target;\n vo.state = state;\n\n pushAndNotify(mediaType, MetricsConstants.BUFFER_STATE, vo);\n }\n\n function addDVRInfo(mediaType, currentTime, mpd, range) {\n let vo = new DVRInfo();\n vo.time = currentTime ;\n vo.range = range;\n vo.manifestInfo = mpd;\n\n pushAndNotify(mediaType, MetricsConstants.DVR_INFO, vo);\n }\n\n function addDroppedFrames(mediaType, quality) {\n let vo = new DroppedFrames();\n let list = getMetricsFor(mediaType).DroppedFrames;\n\n if (!quality) {\n return;\n }\n\n vo.time = quality.creationTime;\n vo.droppedFrames = quality.droppedVideoFrames;\n\n if (list.length > 0 && list[list.length - 1] == vo) {\n return;\n }\n\n pushAndNotify(mediaType, MetricsConstants.DROPPED_FRAMES, vo);\n }\n\n function addSchedulingInfo(mediaType, t, type, startTime, availabilityStartTime, duration, quality, range, state) {\n let vo = new SchedulingInfo();\n\n vo.mediaType = mediaType;\n vo.t = t;\n\n vo.type = type;\n vo.startTime = startTime;\n vo.availabilityStartTime = availabilityStartTime;\n vo.duration = duration;\n vo.quality = quality;\n vo.range = range;\n\n vo.state = state;\n\n pushAndNotify(mediaType, MetricsConstants.SCHEDULING_INFO, vo);\n }\n\n function addRequestsQueue(mediaType, loadingRequests, executedRequests) {\n let vo = new RequestsQueue();\n\n vo.loadingRequests = loadingRequests;\n vo.executedRequests = executedRequests;\n\n getMetricsFor(mediaType).RequestsQueue = vo;\n metricAdded(mediaType, MetricsConstants.REQUESTS_QUEUE, vo);\n }\n\n function addManifestUpdate(mediaType, type, requestTime, fetchTime, availabilityStartTime, presentationStartTime, clientTimeOffset, currentTime, buffered, latency) {\n let vo = new ManifestUpdate();\n\n vo.mediaType = mediaType;\n vo.type = type;\n vo.requestTime = requestTime; // when this manifest update was requested\n vo.fetchTime = fetchTime; // when this manifest update was received\n vo.availabilityStartTime = availabilityStartTime;\n vo.presentationStartTime = presentationStartTime; // the seek point (liveEdge for dynamic, Stream[0].startTime for static)\n vo.clientTimeOffset = clientTimeOffset; // the calculated difference between the server and client wall clock time\n vo.currentTime = currentTime; // actual element.currentTime\n vo.buffered = buffered; // actual element.ranges\n vo.latency = latency; // (static is fixed value of zero. dynamic should be ((Now-@availabilityStartTime) - currentTime)\n\n pushMetrics(Constants.STREAM, MetricsConstants.MANIFEST_UPDATE, vo);\n metricAdded(mediaType, MetricsConstants.MANIFEST_UPDATE, vo);\n }\n\n function updateManifestUpdateInfo(manifestUpdate, updatedFields) {\n if (manifestUpdate) {\n for (let field in updatedFields) {\n manifestUpdate[field] = updatedFields[field];\n }\n\n metricUpdated(manifestUpdate.mediaType, MetricsConstants.MANIFEST_UPDATE, manifestUpdate);\n }\n }\n\n function addManifestUpdateStreamInfo(manifestUpdate, id, index, start, duration) {\n if (manifestUpdate) {\n let vo = new ManifestUpdateStreamInfo();\n\n vo.id = id;\n vo.index = index;\n vo.start = start;\n vo.duration = duration;\n\n manifestUpdate.streamInfo.push(vo);\n metricUpdated(manifestUpdate.mediaType, MetricsConstants.MANIFEST_UPDATE_STREAM_INFO, manifestUpdate);\n }\n }\n\n function addManifestUpdateRepresentationInfo(manifestUpdate, id, index, streamIndex, mediaType, presentationTimeOffset, startNumber, fragmentInfoType) {\n if (manifestUpdate && manifestUpdate.representationInfo) {\n\n const vo = new ManifestUpdateRepresentationInfo();\n vo.id = id;\n vo.index = index;\n vo.streamIndex = streamIndex;\n vo.mediaType = mediaType;\n vo.startNumber = startNumber;\n vo.fragmentInfoType = fragmentInfoType;\n vo.presentationTimeOffset = presentationTimeOffset;\n\n manifestUpdate.representationInfo.push(vo);\n metricUpdated(manifestUpdate.mediaType, MetricsConstants.MANIFEST_UPDATE_TRACK_INFO, manifestUpdate);\n }\n }\n\n function addPlayList(vo) {\n if (vo.trace && Array.isArray(vo.trace)) {\n vo.trace.forEach(trace => {\n if (trace.hasOwnProperty('subreplevel') && !trace.subreplevel) {\n delete trace.subreplevel;\n }\n });\n } else {\n delete vo.trace;\n }\n\n pushAndNotify(Constants.STREAM, MetricsConstants.PLAY_LIST, vo);\n }\n\n function addDVBErrors(vo) {\n pushAndNotify(Constants.STREAM, MetricsConstants.DVB_ERRORS, vo);\n }\n\n instance = {\n clearCurrentMetricsForType: clearCurrentMetricsForType,\n clearAllCurrentMetrics: clearAllCurrentMetrics,\n getMetricsFor: getMetricsFor,\n addHttpRequest: addHttpRequest,\n addRepresentationSwitch: addRepresentationSwitch,\n addBufferLevel: addBufferLevel,\n addBufferState: addBufferState,\n addDVRInfo: addDVRInfo,\n addDroppedFrames: addDroppedFrames,\n addSchedulingInfo: addSchedulingInfo,\n addRequestsQueue: addRequestsQueue,\n addManifestUpdate: addManifestUpdate,\n updateManifestUpdateInfo: updateManifestUpdateInfo,\n addManifestUpdateStreamInfo: addManifestUpdateStreamInfo,\n addManifestUpdateRepresentationInfo: addManifestUpdateRepresentationInfo,\n addPlayList: addPlayList,\n addDVBErrors: addDVBErrors\n };\n\n setup();\n return instance;\n}\n\nMetricsModel.__dashjs_factory_name = 'MetricsModel';\nexport default FactoryMaker.getSingletonFactory(MetricsModel);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport URIFragmentData from '../vo/URIFragmentData';\nimport FactoryMaker from '../../core/FactoryMaker';\n\n/**\n * Model class managing URI fragments.\n * @ignore\n */\nfunction URIFragmentModel() {\n\n let instance,\n URIFragmentDataVO;\n\n /**\n * @param {string} uri The URI to parse for fragment extraction\n * @memberof module:URIFragmentModel\n * @instance\n */\n function initialize(uri) {\n URIFragmentDataVO = new URIFragmentData();\n\n if (!uri) return null;\n\n const hashIndex = uri.indexOf('#');\n if (hashIndex !== -1) {\n const fragments = uri.substr(hashIndex + 1).split('&');\n for (let i = 0, len = fragments.length; i < len; ++i) {\n const fragment = fragments[i];\n const equalIndex = fragment.indexOf('=');\n if (equalIndex !== -1) {\n const key = fragment.substring(0,equalIndex);\n if (URIFragmentDataVO.hasOwnProperty(key)) {\n URIFragmentDataVO[key] = fragment.substr(equalIndex + 1);\n }\n }\n }\n }\n }\n\n /**\n * @returns {URIFragmentData} Object containing supported URI fragments\n * @memberof module:URIFragmentModel\n * @instance\n */\n function getURIFragmentData() {\n return URIFragmentDataVO;\n }\n\n instance = {\n initialize: initialize,\n getURIFragmentData: getURIFragmentData\n };\n\n return instance;\n}\n\nURIFragmentModel.__dashjs_factory_name = 'URIFragmentModel';\nexport default FactoryMaker.getSingletonFactory(URIFragmentModel);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport Debug from '../../core/Debug';\n\nfunction VideoModel() {\n\n let instance,\n logger,\n element,\n TTMLRenderingDiv,\n previousPlaybackRate;\n\n const VIDEO_MODEL_WRONG_ELEMENT_TYPE = 'element is not video or audio DOM type!';\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const stalledStreams = [];\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function initialize() {\n eventBus.on(Events.PLAYBACK_PLAYING, onPlaying, this);\n }\n\n function reset() {\n eventBus.off(Events.PLAYBACK_PLAYING, onPlaying, this);\n }\n\n function onPlaybackCanPlay() {\n if (element) {\n element.playbackRate = previousPlaybackRate || 1;\n element.removeEventListener('canplay', onPlaybackCanPlay);\n }\n }\n\n function setPlaybackRate(value) {\n if (!element) return;\n if (element.readyState <= 2 && value > 0) {\n // If media element hasn't loaded enough data to play yet, wait until it has\n element.addEventListener('canplay', onPlaybackCanPlay);\n } else {\n element.playbackRate = value;\n }\n }\n\n //TODO Move the DVR window calculations from MediaPlayer to Here.\n function setCurrentTime(currentTime, stickToBuffered) {\n if (element) {\n //_currentTime = currentTime;\n\n // We don't set the same currentTime because it can cause firing unexpected Pause event in IE11\n // providing playbackRate property equals to zero.\n if (element.currentTime == currentTime) return;\n\n // TODO Despite the fact that MediaSource 'open' event has been fired IE11 cannot set videoElement.currentTime\n // immediately (it throws InvalidStateError). It seems that this is related to videoElement.readyState property\n // Initially it is 0, but soon after 'open' event it goes to 1 and setting currentTime is allowed. Chrome allows to\n // set currentTime even if readyState = 0.\n // setTimeout is used to workaround InvalidStateError in IE11\n try {\n currentTime = stickToBuffered ? stickTimeToBuffered(currentTime) : currentTime;\n element.currentTime = currentTime;\n } catch (e) {\n if (element.readyState === 0 && e.code === e.INVALID_STATE_ERR) {\n setTimeout(function () {\n element.currentTime = currentTime;\n }, 400);\n }\n }\n }\n }\n\n function stickTimeToBuffered(time) {\n const buffered = getBufferRange();\n let closestTime = time;\n let closestDistance = 9999999999;\n if (buffered) {\n for (let i = 0; i < buffered.length; i++) {\n const start = buffered.start(i);\n const end = buffered.end(i);\n const distanceToStart = Math.abs(start - time);\n const distanceToEnd = Math.abs(end - time);\n\n if (time >= start && time <= end) {\n return time;\n }\n\n if (distanceToStart < closestDistance) {\n closestDistance = distanceToStart;\n closestTime = start;\n }\n\n if (distanceToEnd < closestDistance) {\n closestDistance = distanceToEnd;\n closestTime = end;\n }\n }\n }\n return closestTime;\n }\n\n function getElement() {\n return element;\n }\n\n function setElement(value) {\n //add check of value type\n if (value === null || value === undefined || (value && (/^(VIDEO|AUDIO)$/i).test(value.nodeName))) {\n element = value;\n // Workaround to force Firefox to fire the canplay event.\n if (element) {\n element.preload = 'auto';\n }\n } else {\n throw VIDEO_MODEL_WRONG_ELEMENT_TYPE;\n }\n }\n\n function setSource(source) {\n if (element) {\n if (source) {\n element.src = source;\n } else {\n element.removeAttribute('src');\n element.load();\n }\n }\n }\n\n function getSource() {\n return element ? element.src : null;\n }\n\n function getTTMLRenderingDiv() {\n return TTMLRenderingDiv;\n }\n\n function setTTMLRenderingDiv(div) {\n TTMLRenderingDiv = div;\n // The styling will allow the captions to match the video window size and position.\n TTMLRenderingDiv.style.position = 'absolute';\n TTMLRenderingDiv.style.display = 'flex';\n TTMLRenderingDiv.style.overflow = 'hidden';\n TTMLRenderingDiv.style.pointerEvents = 'none';\n TTMLRenderingDiv.style.top = 0;\n TTMLRenderingDiv.style.left = 0;\n }\n\n function setStallState(type, state) {\n stallStream(type, state);\n }\n\n function isStalled() {\n return (stalledStreams.length > 0);\n }\n\n function addStalledStream(type) {\n let event;\n\n if (type === null || !element || element.seeking || stalledStreams.indexOf(type) !== -1) {\n return;\n }\n\n stalledStreams.push(type);\n if (element && stalledStreams.length === 1) {\n // Halt playback until nothing is stalled.\n event = document.createEvent('Event');\n event.initEvent('waiting', true, false);\n previousPlaybackRate = element.playbackRate;\n setPlaybackRate(0);\n element.dispatchEvent(event);\n }\n }\n\n function removeStalledStream(type) {\n let index = stalledStreams.indexOf(type);\n let event;\n\n if (type === null) {\n return;\n }\n if (index !== -1) {\n stalledStreams.splice(index, 1);\n }\n // If nothing is stalled resume playback.\n if (element && isStalled() === false && element.playbackRate === 0) {\n setPlaybackRate(previousPlaybackRate || 1);\n if (!element.paused) {\n event = document.createEvent('Event');\n event.initEvent('playing', true, false);\n element.dispatchEvent(event);\n }\n }\n }\n\n function stallStream(type, isStalled) {\n if (isStalled) {\n addStalledStream(type);\n } else {\n removeStalledStream(type);\n }\n }\n\n //Calling play on the element will emit playing - even if the stream is stalled. If the stream is stalled, emit a waiting event.\n function onPlaying() {\n if (element && isStalled() && element.playbackRate === 0) {\n const event = document.createEvent('Event');\n event.initEvent('waiting', true, false);\n element.dispatchEvent(event);\n }\n }\n\n function getPlaybackQuality() {\n if (!element) { return null; }\n let hasWebKit = ('webkitDroppedFrameCount' in element) && ('webkitDecodedFrameCount' in element);\n let hasQuality = ('getVideoPlaybackQuality' in element);\n let result = null;\n\n if (hasQuality) {\n result = element.getVideoPlaybackQuality();\n } else if (hasWebKit) {\n result = {\n droppedVideoFrames: element.webkitDroppedFrameCount,\n totalVideoFrames: element.webkitDroppedFrameCount + element.webkitDecodedFrameCount,\n creationTime: new Date()\n };\n }\n\n return result;\n }\n\n function play() {\n if (element) {\n element.autoplay = true;\n const p = element.play();\n if (p && p.catch && typeof Promise !== 'undefined') {\n p.catch((e) => {\n if (e.name === 'NotAllowedError') {\n eventBus.trigger(Events.PLAYBACK_NOT_ALLOWED);\n }\n logger.warn(`Caught pending play exception - continuing (${e})`);\n });\n }\n }\n }\n\n function isPaused() {\n return element ? element.paused : null;\n }\n\n function pause() {\n if (element) {\n element.pause();\n element.autoplay = false;\n }\n }\n\n function isSeeking() {\n return element ? element.seeking : null;\n }\n\n function getTime() {\n return element ? element.currentTime : null;\n }\n\n function getPlaybackRate() {\n return element ? element.playbackRate : null;\n }\n\n function getPlayedRanges() {\n return element ? element.played : null;\n }\n\n function getEnded() {\n return element ? element.ended : null;\n }\n\n function addEventListener(eventName, eventCallBack) {\n if (element) {\n element.addEventListener(eventName, eventCallBack);\n }\n }\n\n function removeEventListener(eventName, eventCallBack) {\n if (element) {\n element.removeEventListener(eventName, eventCallBack);\n }\n }\n\n function getReadyState() {\n return element ? element.readyState : NaN;\n }\n\n function getBufferRange() {\n return element ? element.buffered : null;\n }\n\n function getClientWidth() {\n return element ? element.clientWidth : NaN;\n }\n\n function getClientHeight() {\n return element ? element.clientHeight : NaN;\n }\n\n function getVideoWidth() {\n return element ? element.videoWidth : NaN;\n }\n\n function getVideoHeight() {\n return element ? element.videoHeight : NaN;\n }\n\n function getVideoRelativeOffsetTop() {\n const parentElement = element.parentNode.host || element.parentNode;\n return parentElement ? element.getBoundingClientRect().top - parentElement.getBoundingClientRect().top : NaN;\n }\n\n function getVideoRelativeOffsetLeft() {\n const parentElement = element.parentNode.host || element.parentNode;\n return parentElement ? element.getBoundingClientRect().left - parentElement.getBoundingClientRect().left : NaN;\n }\n\n function getTextTracks() {\n return element ? element.textTracks : [];\n }\n\n function getTextTrack(kind, label, lang, isTTML, isEmbedded) {\n if (element) {\n for (let i = 0; i < element.textTracks.length; i++) {\n //label parameter could be a number (due to adaptationSet), but label, the attribute of textTrack, is a string => to modify...\n //label could also be undefined (due to adaptationSet)\n if (element.textTracks[i].kind === kind && (label ? element.textTracks[i].label == label : true) &&\n element.textTracks[i].language === lang && element.textTracks[i].isTTML === isTTML && element.textTracks[i].isEmbedded === isEmbedded) {\n return element.textTracks[i];\n }\n }\n }\n\n return null;\n }\n\n function addTextTrack(kind, label, lang, isTTML, isEmbedded) {\n if (!element) {\n return null;\n }\n // check if track of same type has not been already created for previous stream\n // then use it (no way to remove existing text track from video element)\n let track = getTextTrack(kind, label, lang, isTTML, isEmbedded);\n if (!track) {\n track = element.addTextTrack(kind, label, lang);\n track.isEmbedded = isEmbedded;\n track.isTTML = isTTML;\n }\n return track;\n }\n\n function appendChild(childElement) {\n if (element) {\n element.appendChild(childElement);\n //in Chrome, we need to differenciate textTrack with same lang, kind and label but different format (vtt, ttml, etc...)\n if (childElement.isTTML !== undefined) {\n element.textTracks[element.textTracks.length - 1].isTTML = childElement.isTTML;\n element.textTracks[element.textTracks.length - 1].isEmbedded = childElement.isEmbedded;\n }\n }\n }\n\n function removeChild(childElement) {\n if (element) {\n element.removeChild(childElement);\n }\n }\n\n instance = {\n initialize: initialize,\n setCurrentTime: setCurrentTime,\n play: play,\n isPaused: isPaused,\n pause: pause,\n isStalled,\n isSeeking: isSeeking,\n getTime: getTime,\n getPlaybackRate: getPlaybackRate,\n setPlaybackRate: setPlaybackRate,\n getPlayedRanges: getPlayedRanges,\n getEnded: getEnded,\n setStallState: setStallState,\n getElement: getElement,\n setElement: setElement,\n setSource: setSource,\n getSource: getSource,\n getTTMLRenderingDiv: getTTMLRenderingDiv,\n setTTMLRenderingDiv: setTTMLRenderingDiv,\n getPlaybackQuality: getPlaybackQuality,\n addEventListener: addEventListener,\n removeEventListener: removeEventListener,\n getReadyState: getReadyState,\n getBufferRange: getBufferRange,\n getClientWidth: getClientWidth,\n getClientHeight: getClientHeight,\n getTextTracks: getTextTracks,\n getTextTrack: getTextTrack,\n addTextTrack: addTextTrack,\n appendChild: appendChild,\n removeChild: removeChild,\n getVideoWidth: getVideoWidth,\n getVideoHeight: getVideoHeight,\n getVideoRelativeOffsetTop: getVideoRelativeOffsetTop,\n getVideoRelativeOffsetLeft: getVideoRelativeOffsetLeft,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nVideoModel.__dashjs_factory_name = 'VideoModel';\nexport default FactoryMaker.getSingletonFactory(VideoModel);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Settings from '../../core/Settings';\nimport Constants from '../constants/Constants';\n\n/**\n * @module FetchLoader\n * @ignore\n * @description Manages download of resources via HTTP using fetch.\n * @param {Object} cfg - dependencies from parent\n */\nfunction FetchLoader(cfg) {\n\n cfg = cfg || {};\n const context = this.context;\n const requestModifier = cfg.requestModifier;\n const boxParser = cfg.boxParser;\n const settings = Settings(context).getInstance();\n let instance;\n\n function load(httpRequest) {\n\n // Variables will be used in the callback functions\n const requestStartTime = new Date();\n const request = httpRequest.request;\n\n const headers = new Headers(); /*jshint ignore:line*/\n if (request.range) {\n headers.append('Range', 'bytes=' + request.range);\n }\n\n if (!request.requestStartDate) {\n request.requestStartDate = requestStartTime;\n }\n\n if (requestModifier) {\n // modifyRequestHeader expects a XMLHttpRequest object so,\n // to keep backward compatibility, we should expose a setRequestHeader method\n // TODO: Remove RequestModifier dependency on XMLHttpRequest object and define\n // a more generic way to intercept/modify requests\n requestModifier.modifyRequestHeader({\n setRequestHeader: function (header, value) {\n headers.append(header, value);\n }\n });\n }\n\n let abortController;\n if (typeof window.AbortController === 'function') {\n abortController = new AbortController(); /*jshint ignore:line*/\n httpRequest.abortController = abortController;\n abortController.signal.onabort = httpRequest.onabort;\n }\n\n const reqOptions = {\n method: httpRequest.method,\n headers: headers,\n credentials: httpRequest.withCredentials ? 'include' : undefined,\n signal: abortController ? abortController.signal : undefined\n };\n\n fetch(httpRequest.url, reqOptions).then(function (response) {\n if (!httpRequest.response) {\n httpRequest.response = {};\n }\n httpRequest.response.status = response.status;\n httpRequest.response.statusText = response.statusText;\n httpRequest.response.responseURL = response.url;\n\n if (!response.ok) {\n httpRequest.onerror();\n }\n\n let responseHeaders = '';\n for (const key of response.headers.keys()) {\n responseHeaders += key + ': ' + response.headers.get(key) + '\\r\\n';\n }\n httpRequest.response.responseHeaders = responseHeaders;\n\n if (!response.body) {\n // Fetch returning a ReadableStream response body is not currently supported by all browsers.\n // Browser compatibility: https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API\n // If it is not supported, returning the whole segment when it's ready (as xhr)\n return response.arrayBuffer().then(function (buffer) {\n httpRequest.response.response = buffer;\n const event = {\n loaded: buffer.byteLength,\n total: buffer.byteLength,\n stream: false\n };\n httpRequest.progress(event);\n httpRequest.onload();\n httpRequest.onend();\n return;\n });\n }\n\n const totalBytes = parseInt(response.headers.get('Content-Length'), 10);\n let bytesReceived = 0;\n let signaledFirstByte = false;\n let remaining = new Uint8Array();\n let offset = 0;\n\n httpRequest.reader = response.body.getReader();\n let downloadedData = [];\n let startTimeData = [];\n let endTimeData = [];\n let lastChunkWasFinished = true;\n const calculationMode = settings.get().streaming.abr.fetchThroughputCalculationMode;\n\n const processResult = function ({ value, done }) { // Bug fix Parse whenever data is coming [value] better than 1ms looking that increase CPU\n if (done) {\n if (remaining) {\n // If there is pending data, call progress so network metrics\n // are correctly generated\n // Same structure as https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequestEventTarget/\n httpRequest.progress({\n loaded: bytesReceived,\n total: isNaN(totalBytes) ? bytesReceived : totalBytes,\n lengthComputable: true,\n time: calculateDownloadedTime(calculationMode, startTimeData, endTimeData, downloadedData, bytesReceived),\n stream: true\n });\n\n httpRequest.response.response = remaining.buffer;\n }\n httpRequest.onload();\n httpRequest.onend();\n return;\n }\n\n if (value && value.length > 0) {\n remaining = concatTypedArray(remaining, value);\n bytesReceived += value.length;\n\n downloadedData.push({\n ts: Date.now(),\n bytes: value.length\n });\n\n if (calculationMode === Constants.ABR_FETCH_THROUGHPUT_CALCULATION_MOOF_PARSING && lastChunkWasFinished) {\n // Parse the payload and capture the the 'moof' box\n const boxesInfo = boxParser.findLastTopIsoBoxCompleted(['moof'], remaining, offset);\n if (boxesInfo.found) {\n // Store the beginning time of each chunk download in array StartTimeData\n lastChunkWasFinished = false;\n startTimeData.push({\n ts: performance.now(), /* jshint ignore:line */\n bytes: value.length\n });\n }\n }\n\n const boxesInfo = boxParser.findLastTopIsoBoxCompleted(['moov', 'mdat'], remaining, offset);\n if (boxesInfo.found) {\n const end = boxesInfo.lastCompletedOffset + boxesInfo.size;\n\n // Store the end time of each chunk download with its size in array EndTimeData\n if (calculationMode === Constants.ABR_FETCH_THROUGHPUT_CALCULATION_MOOF_PARSING) {\n lastChunkWasFinished = true;\n endTimeData.push({\n ts: performance.now(), /* jshint ignore:line */\n bytes: remaining.length\n });\n }\n\n // If we are going to pass full buffer, avoid copying it and pass\n // complete buffer. Otherwise clone the part of the buffer that is completed\n // and adjust remaining buffer. A clone is needed because ArrayBuffer of a typed-array\n // keeps a reference to the original data\n let data;\n if (end === remaining.length) {\n data = remaining;\n remaining = new Uint8Array();\n } else {\n data = new Uint8Array(remaining.subarray(0, end));\n remaining = remaining.subarray(end);\n }\n // Announce progress but don't track traces. Throughput measures are quite unstable\n // when they are based in small amount of data\n httpRequest.progress({\n data: data.buffer,\n lengthComputable: false,\n noTrace: true\n });\n\n offset = 0;\n } else {\n offset = boxesInfo.lastCompletedOffset;\n // Call progress so it generates traces that will be later used to know when the first byte\n // were received\n if (!signaledFirstByte) {\n httpRequest.progress({\n lengthComputable: false,\n noTrace: true\n });\n signaledFirstByte = true;\n }\n }\n }\n read(httpRequest, processResult);\n };\n read(httpRequest, processResult);\n })\n .catch(function (e) {\n if (httpRequest.onerror) {\n httpRequest.onerror(e);\n }\n });\n }\n\n function read(httpRequest, processResult) {\n httpRequest.reader.read()\n .then(processResult)\n .catch(function (e) {\n if (httpRequest.onerror && httpRequest.response.status === 200) {\n // Error, but response code is 200, trigger error\n httpRequest.onerror(e);\n }\n });\n }\n\n function concatTypedArray(remaining, data) {\n if (remaining.length === 0) {\n return data;\n }\n const result = new Uint8Array(remaining.length + data.length);\n result.set(remaining);\n result.set(data, remaining.length);\n return result;\n }\n\n function abort(request) {\n if (request.abortController) {\n // For firefox and edge\n request.abortController.abort();\n } else if (request.reader) {\n // For Chrome\n try {\n request.reader.cancel();\n request.onabort();\n } catch (e) {\n // throw exceptions (TypeError) when reader was previously closed,\n // for example, because a network issue\n }\n }\n }\n\n // Compute the download time of a segment\n function calculateDownloadedTime(calculationMode, startTimeData, endTimeData, downloadedData, bytesReceived) {\n switch (calculationMode) {\n case Constants.ABR_FETCH_THROUGHPUT_CALCULATION_MOOF_PARSING:\n return _calculateDownloadedTimeByMoofParsing(startTimeData, endTimeData);\n case Constants.ABR_FETCH_THROUGHPUT_CALCULATION_DOWNLOADED_DATA:\n return _calculateDownloadedTimeByBytesReceived(downloadedData, bytesReceived);\n default:\n return _calculateDownloadedTimeByBytesReceived(downloadedData, bytesReceived);\n }\n }\n\n function _calculateDownloadedTimeByMoofParsing(startTimeData, endTimeData) {\n try {\n let datum, datumE;\n // Filter the first and last chunks in a segment in both arrays [StartTimeData and EndTimeData]\n datum = startTimeData.filter((data, i) => i > 0 && i < startTimeData.length - 1);\n datumE = endTimeData.filter((dataE, i) => i > 0 && i < endTimeData.length - 1);\n // Compute the download time of a segment based on the filtered data [last chunk end time - first chunk beginning time]\n let segDownloadTime = 0;\n if (datum.length > 1) {\n for (let i = 0; i < datum.length; i++) {\n if (datum[i] && datumE[i]) {\n let chunkDownladTime = datumE[i].ts - datum[i].ts;\n segDownloadTime += chunkDownladTime;\n }\n }\n\n return segDownloadTime;\n }\n return null;\n } catch (e) {\n return null;\n }\n }\n\n function _calculateDownloadedTimeByBytesReceived(downloadedData, bytesReceived) {\n try {\n downloadedData = downloadedData.filter(data => data.bytes > ((bytesReceived / 4) / downloadedData.length));\n if (downloadedData.length > 1) {\n let time = 0;\n const avgTimeDistance = (downloadedData[downloadedData.length - 1].ts - downloadedData[0].ts) / downloadedData.length;\n downloadedData.forEach((data, index) => {\n // To be counted the data has to be over a threshold\n const next = downloadedData[index + 1];\n if (next) {\n const distance = next.ts - data.ts;\n time += distance < avgTimeDistance ? distance : 0;\n }\n });\n return time;\n }\n return null;\n } catch (e) {\n return null;\n }\n }\n\n instance = {\n load: load,\n abort: abort,\n calculateDownloadedTime: calculateDownloadedTime\n };\n\n return instance;\n}\n\nFetchLoader.__dashjs_factory_name = 'FetchLoader';\n\nconst factory = FactoryMaker.getClassFactory(FetchLoader);\nexport default factory;\n\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport XHRLoader from './XHRLoader';\nimport FetchLoader from './FetchLoader';\nimport {HTTPRequest} from '../vo/metrics/HTTPRequest';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport DashJSError from '../vo/DashJSError';\nimport CmcdModel from '../models/CmcdModel';\nimport Utils from '../../core/Utils';\nimport Debug from '../../core/Debug';\n\n/**\n * @module HTTPLoader\n * @ignore\n * @description Manages download of resources via HTTP.\n * @param {Object} cfg - dependancies from parent\n */\nfunction HTTPLoader(cfg) {\n\n cfg = cfg || {};\n\n const context = this.context;\n const errHandler = cfg.errHandler;\n const dashMetrics = cfg.dashMetrics;\n const mediaPlayerModel = cfg.mediaPlayerModel;\n const requestModifier = cfg.requestModifier;\n const boxParser = cfg.boxParser;\n const useFetch = cfg.useFetch || false;\n const errors = cfg.errors;\n const requestTimeout = cfg.requestTimeout || 0;\n\n let instance,\n requests,\n delayedRequests,\n retryRequests,\n downloadErrorToRequestTypeMap,\n cmcdModel,\n logger;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n requests = [];\n delayedRequests = [];\n retryRequests = [];\n cmcdModel = CmcdModel(context).getInstance();\n\n downloadErrorToRequestTypeMap = {\n [HTTPRequest.MPD_TYPE]: errors.DOWNLOAD_ERROR_ID_MANIFEST_CODE,\n [HTTPRequest.XLINK_EXPANSION_TYPE]: errors.DOWNLOAD_ERROR_ID_XLINK_CODE,\n [HTTPRequest.INIT_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_INITIALIZATION_CODE,\n [HTTPRequest.MEDIA_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE,\n [HTTPRequest.INDEX_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE,\n [HTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE,\n [HTTPRequest.OTHER_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE\n };\n }\n\n function internalLoad(config, remainingAttempts) {\n const request = config.request;\n const traces = [];\n let firstProgress = true;\n let needFailureReport = true;\n let requestStartTime = new Date();\n let lastTraceTime = requestStartTime;\n let lastTraceReceivedCount = 0;\n let httpRequest;\n\n if (!requestModifier || !dashMetrics || !errHandler) {\n throw new Error('config object is not correct or missing');\n }\n\n const handleLoaded = function (success) {\n needFailureReport = false;\n\n request.requestStartDate = requestStartTime;\n request.requestEndDate = new Date();\n request.firstByteDate = request.firstByteDate || requestStartTime;\n\n if (!request.checkExistenceOnly) {\n dashMetrics.addHttpRequest(request, httpRequest.response ? httpRequest.response.responseURL : null,\n httpRequest.response ? httpRequest.response.status : null,\n httpRequest.response && httpRequest.response.getAllResponseHeaders ? httpRequest.response.getAllResponseHeaders() :\n httpRequest.response ? httpRequest.response.responseHeaders : [],\n success ? traces : null);\n\n if (request.type === HTTPRequest.MPD_TYPE) {\n dashMetrics.addManifestUpdate(request.type, request.requestStartDate, request.requestEndDate);\n }\n }\n };\n\n const onloadend = function () {\n if (requests.indexOf(httpRequest) === -1) {\n return;\n } else {\n requests.splice(requests.indexOf(httpRequest), 1);\n }\n\n if (needFailureReport) {\n handleLoaded(false);\n\n if (remainingAttempts > 0) {\n remainingAttempts--;\n let retryRequest = {config: config};\n retryRequests.push(retryRequest);\n retryRequest.timeout = setTimeout(function () {\n if (retryRequests.indexOf(retryRequest) === -1) {\n return;\n } else {\n retryRequests.splice(retryRequests.indexOf(retryRequest), 1);\n }\n internalLoad(config, remainingAttempts);\n }, mediaPlayerModel.getRetryIntervalsForType(request.type));\n } else {\n errHandler.error(new DashJSError(downloadErrorToRequestTypeMap[request.type], request.url + ' is not available', {\n request: request,\n response: httpRequest.response\n }));\n\n if (config.error) {\n config.error(request, 'error', httpRequest.response.statusText);\n }\n\n if (config.complete) {\n config.complete(request, httpRequest.response.statusText);\n }\n }\n }\n };\n\n const progress = function (event) {\n const currentTime = new Date();\n\n if (firstProgress) {\n firstProgress = false;\n if (!event.lengthComputable ||\n (event.lengthComputable && event.total !== event.loaded)) {\n request.firstByteDate = currentTime;\n }\n }\n\n if (event.lengthComputable) {\n request.bytesLoaded = event.loaded;\n request.bytesTotal = event.total;\n }\n\n if (!event.noTrace) {\n traces.push({\n s: lastTraceTime,\n d: event.time ? event.time : currentTime.getTime() - lastTraceTime.getTime(),\n b: [event.loaded ? event.loaded - lastTraceReceivedCount : 0]\n });\n\n lastTraceTime = currentTime;\n lastTraceReceivedCount = event.loaded;\n }\n\n if (config.progress && event) {\n config.progress(event);\n }\n };\n\n const onload = function () {\n if (httpRequest.response.status >= 200 && httpRequest.response.status <= 299) {\n handleLoaded(true);\n\n if (config.success) {\n config.success(httpRequest.response.response, httpRequest.response.statusText, httpRequest.response.responseURL);\n }\n\n if (config.complete) {\n config.complete(request, httpRequest.response.statusText);\n }\n }\n };\n\n const onabort = function () {\n if (config.abort) {\n config.abort(request);\n }\n };\n\n const ontimeout = function (event) {\n let timeoutMessage;\n if (event.lengthComputable) {\n let percentageComplete = (event.loaded / event.total) * 100;\n timeoutMessage = 'Request timeout: loaded: ' + event.loaded + ', out of: ' + event.total + ' : ' + percentageComplete.toFixed(3) + '% Completed';\n } else {\n timeoutMessage = 'Request timeout: non-computable download size';\n }\n logger.warn(timeoutMessage);\n };\n\n let loader;\n if (useFetch && window.fetch && request.responseType === 'arraybuffer' && request.type === HTTPRequest.MEDIA_SEGMENT_TYPE) {\n loader = FetchLoader(context).create({\n requestModifier: requestModifier,\n boxParser: boxParser\n });\n } else {\n loader = XHRLoader(context).create({\n requestModifier: requestModifier\n });\n }\n\n let modifiedUrl = requestModifier.modifyRequestURL(request.url);\n const additionalQueryParameter = _getAdditionalQueryParameter(request);\n modifiedUrl = Utils.addAditionalQueryParameterToUrl(modifiedUrl, additionalQueryParameter);\n const verb = request.checkExistenceOnly ? HTTPRequest.HEAD : HTTPRequest.GET;\n const withCredentials = mediaPlayerModel.getXHRWithCredentialsForType(request.type);\n\n\n httpRequest = {\n url: modifiedUrl,\n method: verb,\n withCredentials: withCredentials,\n request: request,\n onload: onload,\n onend: onloadend,\n onerror: onloadend,\n progress: progress,\n onabort: onabort,\n ontimeout: ontimeout,\n loader: loader,\n timeout: requestTimeout\n };\n\n // Adds the ability to delay single fragment loading time to control buffer.\n let now = new Date().getTime();\n if (isNaN(request.delayLoadingTime) || now >= request.delayLoadingTime) {\n // no delay - just send\n requests.push(httpRequest);\n loader.load(httpRequest);\n } else {\n // delay\n let delayedRequest = {httpRequest: httpRequest};\n delayedRequests.push(delayedRequest);\n delayedRequest.delayTimeout = setTimeout(function () {\n if (delayedRequests.indexOf(delayedRequest) === -1) {\n return;\n } else {\n delayedRequests.splice(delayedRequests.indexOf(delayedRequest), 1);\n }\n try {\n requestStartTime = new Date();\n lastTraceTime = requestStartTime;\n requests.push(delayedRequest.httpRequest);\n loader.load(delayedRequest.httpRequest);\n } catch (e) {\n delayedRequest.httpRequest.onerror();\n }\n }, (request.delayLoadingTime - now));\n }\n }\n\n function _getAdditionalQueryParameter(request) {\n try {\n const additionalQueryParameter = [];\n const cmcdQueryParameter = cmcdModel.getQueryParameter(request);\n\n if (cmcdQueryParameter) {\n additionalQueryParameter.push(cmcdQueryParameter);\n }\n\n return additionalQueryParameter;\n } catch (e) {\n return [];\n }\n }\n\n /**\n * Initiates a download of the resource described by config.request\n * @param {Object} config - contains request (FragmentRequest or derived type), and callbacks\n * @memberof module:HTTPLoader\n * @instance\n */\n function load(config) {\n if (config.request) {\n internalLoad(\n config,\n mediaPlayerModel.getRetryAttemptsForType(\n config.request.type\n )\n );\n } else {\n if (config.error) {\n config.error(config.request, 'error');\n }\n }\n }\n\n /**\n * Aborts any inflight downloads\n * @memberof module:HTTPLoader\n * @instance\n */\n function abort() {\n retryRequests.forEach(t => {\n clearTimeout(t.timeout);\n // abort request in order to trigger LOADING_ABANDONED event\n if (t.config.request && t.config.abort) {\n t.config.abort(t.config.request);\n }\n });\n retryRequests = [];\n\n delayedRequests.forEach(x => clearTimeout(x.delayTimeout));\n delayedRequests = [];\n\n requests.forEach(x => {\n // abort will trigger onloadend which we don't want\n // when deliberately aborting inflight requests -\n // set them to undefined so they are not called\n x.onloadend = x.onerror = x.onprogress = undefined;\n x.loader.abort(x);\n });\n requests = [];\n }\n\n instance = {\n load: load,\n abort: abort\n };\n\n setup();\n\n return instance;\n}\n\nHTTPLoader.__dashjs_factory_name = 'HTTPLoader';\n\nconst factory = FactoryMaker.getClassFactory(HTTPLoader);\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport XHRLoader from './XHRLoader';\nimport FetchLoader from './FetchLoader';\nimport {HTTPRequest} from '../vo/metrics/HTTPRequest';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport DashJSError from '../vo/DashJSError';\nimport CmcdModel from '../models/CmcdModel';\nimport Utils from '../../core/Utils';\nimport Debug from '../../core/Debug';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport Settings from '../../core/Settings';\n\n/**\n * @module HTTPLoader\n * @ignore\n * @description Manages download of resources via HTTP.\n * @param {Object} cfg - dependancies from parent\n */\nfunction HTTPLoader(cfg) {\n\n cfg = cfg || {};\n\n const context = this.context;\n const errHandler = cfg.errHandler;\n const dashMetrics = cfg.dashMetrics;\n const mediaPlayerModel = cfg.mediaPlayerModel;\n const requestModifier = cfg.requestModifier;\n const boxParser = cfg.boxParser;\n const useFetch = cfg.useFetch || false;\n const errors = cfg.errors;\n const requestTimeout = cfg.requestTimeout || 0;\n const eventBus = EventBus(context).getInstance();\n const settings = Settings(context).getInstance();\n\n let instance,\n requests,\n delayedRequests,\n retryRequests,\n downloadErrorToRequestTypeMap,\n cmcdModel,\n logger;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n requests = [];\n delayedRequests = [];\n retryRequests = [];\n cmcdModel = CmcdModel(context).getInstance();\n\n downloadErrorToRequestTypeMap = {\n [HTTPRequest.MPD_TYPE]: errors.DOWNLOAD_ERROR_ID_MANIFEST_CODE,\n [HTTPRequest.XLINK_EXPANSION_TYPE]: errors.DOWNLOAD_ERROR_ID_XLINK_CODE,\n [HTTPRequest.INIT_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_INITIALIZATION_CODE,\n [HTTPRequest.MEDIA_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE,\n [HTTPRequest.INDEX_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE,\n [HTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE,\n [HTTPRequest.OTHER_TYPE]: errors.DOWNLOAD_ERROR_ID_CONTENT_CODE\n };\n }\n\n function internalLoad(config, remainingAttempts) {\n const request = config.request;\n const traces = [];\n let firstProgress = true;\n let needFailureReport = true;\n let requestStartTime = new Date();\n let lastTraceTime = requestStartTime;\n let lastTraceReceivedCount = 0;\n let httpRequest;\n\n if (!requestModifier || !dashMetrics || !errHandler) {\n throw new Error('config object is not correct or missing');\n }\n\n const handleLoaded = function (success) {\n needFailureReport = false;\n\n request.requestStartDate = requestStartTime;\n request.requestEndDate = new Date();\n request.firstByteDate = request.firstByteDate || requestStartTime;\n\n if (!request.checkExistenceOnly) {\n dashMetrics.addHttpRequest(request, httpRequest.response ? httpRequest.response.responseURL : null,\n httpRequest.response ? httpRequest.response.status : null,\n httpRequest.response && httpRequest.response.getAllResponseHeaders ? httpRequest.response.getAllResponseHeaders() :\n httpRequest.response ? httpRequest.response.responseHeaders : [],\n success ? traces : null);\n\n if (request.type === HTTPRequest.MPD_TYPE) {\n dashMetrics.addManifestUpdate(request);\n }\n }\n };\n\n const onloadend = function () {\n if (requests.indexOf(httpRequest) === -1) {\n return;\n } else {\n requests.splice(requests.indexOf(httpRequest), 1);\n }\n\n if (needFailureReport) {\n handleLoaded(false);\n\n if (remainingAttempts > 0) {\n\n // If we get a 404 to a media segment we should check the client clock again and perform a UTC sync in the background.\n try {\n if (settings.get().streaming.utcSynchronization.enableBackgroundSyncAfterSegmentDownloadError && request.type === HTTPRequest.MEDIA_SEGMENT_TYPE) {\n // Only trigger a sync if the loading failed for the first time\n const initialNumberOfAttempts = mediaPlayerModel.getRetryAttemptsForType(HTTPRequest.MEDIA_SEGMENT_TYPE);\n if (initialNumberOfAttempts === remainingAttempts) {\n eventBus.trigger(Events.ATTEMPT_BACKGROUND_SYNC);\n }\n }\n } catch (e) {\n\n }\n\n remainingAttempts--;\n let retryRequest = { config: config };\n retryRequests.push(retryRequest);\n retryRequest.timeout = setTimeout(function () {\n if (retryRequests.indexOf(retryRequest) === -1) {\n return;\n } else {\n retryRequests.splice(retryRequests.indexOf(retryRequest), 1);\n }\n internalLoad(config, remainingAttempts);\n }, mediaPlayerModel.getRetryIntervalsForType(request.type));\n } else {\n errHandler.error(new DashJSError(downloadErrorToRequestTypeMap[request.type], request.url + ' is not available', {\n request: request,\n response: httpRequest.response\n }));\n\n if (config.error) {\n config.error(request, 'error', httpRequest.response.statusText);\n }\n\n if (config.complete) {\n config.complete(request, httpRequest.response.statusText);\n }\n }\n }\n };\n\n const progress = function (event) {\n const currentTime = new Date();\n\n if (firstProgress) {\n firstProgress = false;\n if (!event.lengthComputable ||\n (event.lengthComputable && event.total !== event.loaded)) {\n request.firstByteDate = currentTime;\n }\n }\n\n if (event.lengthComputable) {\n request.bytesLoaded = event.loaded;\n request.bytesTotal = event.total;\n }\n\n if (!event.noTrace) {\n traces.push({\n s: lastTraceTime,\n d: event.time ? event.time : currentTime.getTime() - lastTraceTime.getTime(),\n b: [event.loaded ? event.loaded - lastTraceReceivedCount : 0]\n });\n\n lastTraceTime = currentTime;\n lastTraceReceivedCount = event.loaded;\n }\n\n if (config.progress && event) {\n config.progress(event);\n }\n };\n\n const onload = function () {\n if (httpRequest.response.status >= 200 && httpRequest.response.status <= 299) {\n handleLoaded(true);\n\n if (config.success) {\n config.success(httpRequest.response.response, httpRequest.response.statusText, httpRequest.response.responseURL);\n }\n\n if (config.complete) {\n config.complete(request, httpRequest.response.statusText);\n }\n }\n };\n\n const onabort = function () {\n if (config.abort) {\n config.abort(request);\n }\n };\n\n const ontimeout = function (event) {\n let timeoutMessage;\n if (event.lengthComputable) {\n let percentageComplete = (event.loaded / event.total) * 100;\n timeoutMessage = 'Request timeout: loaded: ' + event.loaded + ', out of: ' + event.total + ' : ' + percentageComplete.toFixed(3) + '% Completed';\n } else {\n timeoutMessage = 'Request timeout: non-computable download size';\n }\n logger.warn(timeoutMessage);\n };\n\n let loader;\n if (useFetch && window.fetch && request.responseType === 'arraybuffer' && request.type === HTTPRequest.MEDIA_SEGMENT_TYPE) {\n loader = FetchLoader(context).create({\n requestModifier: requestModifier,\n boxParser: boxParser\n });\n } else {\n loader = XHRLoader(context).create({\n requestModifier: requestModifier\n });\n }\n\n let modifiedUrl = requestModifier.modifyRequestURL(request.url);\n const additionalQueryParameter = _getAdditionalQueryParameter(request);\n modifiedUrl = Utils.addAditionalQueryParameterToUrl(modifiedUrl, additionalQueryParameter);\n const verb = request.checkExistenceOnly ? HTTPRequest.HEAD : HTTPRequest.GET;\n const withCredentials = mediaPlayerModel.getXHRWithCredentialsForType(request.type);\n\n\n httpRequest = {\n url: modifiedUrl,\n method: verb,\n withCredentials: withCredentials,\n request: request,\n onload: onload,\n onend: onloadend,\n onerror: onloadend,\n progress: progress,\n onabort: onabort,\n ontimeout: ontimeout,\n loader: loader,\n timeout: requestTimeout\n };\n\n // Adds the ability to delay single fragment loading time to control buffer.\n let now = new Date().getTime();\n if (isNaN(request.delayLoadingTime) || now >= request.delayLoadingTime) {\n // no delay - just send\n requests.push(httpRequest);\n loader.load(httpRequest);\n } else {\n // delay\n let delayedRequest = { httpRequest: httpRequest };\n delayedRequests.push(delayedRequest);\n delayedRequest.delayTimeout = setTimeout(function () {\n if (delayedRequests.indexOf(delayedRequest) === -1) {\n return;\n } else {\n delayedRequests.splice(delayedRequests.indexOf(delayedRequest), 1);\n }\n try {\n requestStartTime = new Date();\n lastTraceTime = requestStartTime;\n requests.push(delayedRequest.httpRequest);\n loader.load(delayedRequest.httpRequest);\n } catch (e) {\n delayedRequest.httpRequest.onerror();\n }\n }, (request.delayLoadingTime - now));\n }\n }\n\n function _getAdditionalQueryParameter(request) {\n try {\n const additionalQueryParameter = [];\n const cmcdQueryParameter = cmcdModel.getQueryParameter(request);\n\n if (cmcdQueryParameter) {\n additionalQueryParameter.push(cmcdQueryParameter);\n }\n\n return additionalQueryParameter;\n } catch (e) {\n return [];\n }\n }\n\n /**\n * Initiates a download of the resource described by config.request\n * @param {Object} config - contains request (FragmentRequest or derived type), and callbacks\n * @memberof module:HTTPLoader\n * @instance\n */\n function load(config) {\n if (config.request) {\n internalLoad(\n config,\n mediaPlayerModel.getRetryAttemptsForType(\n config.request.type\n )\n );\n } else {\n if (config.error) {\n config.error(config.request, 'error');\n }\n }\n }\n\n /**\n * Aborts any inflight downloads\n * @memberof module:HTTPLoader\n * @instance\n */\n function abort() {\n retryRequests.forEach(t => {\n clearTimeout(t.timeout);\n // abort request in order to trigger LOADING_ABANDONED event\n if (t.config.request && t.config.abort) {\n t.config.abort(t.config.request);\n }\n });\n retryRequests = [];\n\n delayedRequests.forEach(x => clearTimeout(x.delayTimeout));\n delayedRequests = [];\n\n requests.forEach(x => {\n // abort will trigger onloadend which we don't want\n // when deliberately aborting inflight requests -\n // set them to undefined so they are not called\n x.onloadend = x.onerror = x.onprogress = undefined;\n x.loader.abort(x);\n });\n requests = [];\n }\n\n instance = {\n load: load,\n abort: abort\n };\n\n setup();\n\n return instance;\n}\n\nHTTPLoader.__dashjs_factory_name = 'HTTPLoader';\n\nconst factory = FactoryMaker.getClassFactory(HTTPLoader);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport HTTPLoader from '../../streaming/net/HTTPLoader';\n\n/**\n * @module\n * @description Choose right url loader for scheme\n * @ignore\n */\nfunction SchemeLoaderFactory() {\n\n let instance;\n\n let schemeLoaderMap;\n\n function registerLoader(scheme, loader) {\n schemeLoaderMap[scheme] = loader;\n }\n\n function unregisterLoader(scheme) {\n if (schemeLoaderMap[scheme]) {\n delete schemeLoaderMap[scheme];\n }\n }\n\n function unregisterAllLoader() {\n schemeLoaderMap = {};\n }\n\n function getLoader(url) {\n\n // iterates through schemeLoaderMap to find a loader for the scheme\n for (var scheme in schemeLoaderMap) {\n if (schemeLoaderMap.hasOwnProperty(scheme) && url.startsWith(scheme)) {\n return schemeLoaderMap[scheme];\n }\n }\n\n return HTTPLoader;\n }\n\n function reset() {\n unregisterAllLoader();\n }\n\n function setup() {\n reset();\n }\n\n setup();\n\n instance = {\n getLoader: getLoader,\n registerLoader: registerLoader,\n unregisterLoader: unregisterLoader,\n unregisterAllLoader: unregisterAllLoader,\n reset: reset\n };\n\n return instance;\n}\n\nSchemeLoaderFactory.__dashjs_factory_name = 'SchemeLoaderFactory';\nconst factory = FactoryMaker.getSingletonFactory(SchemeLoaderFactory);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport SchemeLoaderFactory from '../../streaming/net/SchemeLoaderFactory';\n\n/**\n * @class URLLoader\n * @description Call Offline Loader or Online Loader dependaing on URL\n * @param {Object} cfg - dependances\n * @ignore\n*/\nfunction URLLoader(cfg) {\n\n cfg = cfg || {};\n const context = this.context;\n\n let instance,\n schemeLoaderFactory,\n loader;\n\n schemeLoaderFactory = SchemeLoaderFactory(context).getInstance();\n\n function load(config) {\n\n let loaderFactory = schemeLoaderFactory.getLoader(config && config.request ? config.request.url : null);\n loader = loaderFactory(context).create({\n errHandler: cfg.errHandler,\n mediaPlayerModel: cfg.mediaPlayerModel,\n requestModifier: cfg.requestModifier,\n useFetch: cfg.useFetch || null,\n dashMetrics: cfg.dashMetrics,\n boxParser: cfg.boxParser ? cfg.boxParser : null,\n constants: cfg.constants ? cfg.constants : null,\n dashConstants: cfg.dashConstants ? cfg.dashConstants : null,\n urlUtils: cfg.urlUtils ? cfg.urlUtils : null,\n requestTimeout: !isNaN(cfg.requestTimeout) ? cfg.requestTimeout : 0,\n errors: cfg.errors\n });\n\n loader.load(config);\n }\n\n function abort() {\n if (loader) {\n loader.abort();\n }\n }\n instance = {\n load: load,\n abort: abort\n };\n\n return instance;\n\n}\nURLLoader.__dashjs_factory_name = 'URLLoader';\n\nconst factory = FactoryMaker.getClassFactory(URLLoader);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\n\n/**\n * @module XHRLoader\n * @ignore\n * @description Manages download of resources via HTTP.\n * @param {Object} cfg - dependencies from parent\n */\nfunction XHRLoader(cfg) {\n\n cfg = cfg || {};\n const requestModifier = cfg.requestModifier;\n\n let instance;\n\n function load(httpRequest) {\n\n // Variables will be used in the callback functions\n const requestStartTime = new Date();\n const request = httpRequest.request;\n\n let xhr = new XMLHttpRequest();\n xhr.open(httpRequest.method, httpRequest.url, true);\n\n if (request.responseType) {\n xhr.responseType = request.responseType;\n }\n\n if (request.range) {\n xhr.setRequestHeader('Range', 'bytes=' + request.range);\n }\n\n if (!request.requestStartDate) {\n request.requestStartDate = requestStartTime;\n }\n\n if (requestModifier) {\n xhr = requestModifier.modifyRequestHeader(xhr);\n }\n\n xhr.withCredentials = httpRequest.withCredentials;\n\n xhr.onload = httpRequest.onload;\n xhr.onloadend = httpRequest.onend;\n xhr.onerror = httpRequest.onerror;\n xhr.onprogress = httpRequest.progress;\n xhr.onabort = httpRequest.onabort;\n xhr.ontimeout = httpRequest.ontimeout;\n xhr.timeout = httpRequest.timeout;\n\n xhr.send();\n\n httpRequest.response = xhr;\n }\n\n function abort(request) {\n const x = request.response;\n x.onloadend = x.onerror = x.onprogress = undefined; //Ignore events from aborted requests.\n x.abort();\n }\n\n instance = {\n load: load,\n abort: abort\n };\n\n return instance;\n}\n\nXHRLoader.__dashjs_factory_name = 'XHRLoader';\n\nconst factory = FactoryMaker.getClassFactory(XHRLoader);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * @class\n * @ignore\n */\nclass CommonEncryption {\n /**\n * Find and return the ContentProtection element in the given array\n * that indicates support for MPEG Common Encryption\n *\n * @param {Array} cpArray array of content protection elements\n * @returns {Object|null} the Common Encryption content protection element or\n * null if one was not found\n */\n static findCencContentProtection(cpArray) {\n let retVal = null;\n for (let i = 0; i < cpArray.length; ++i) {\n let cp = cpArray[i];\n if (cp.schemeIdUri.toLowerCase() === 'urn:mpeg:dash:mp4protection:2011' &&\n (cp.value.toLowerCase() === 'cenc' || cp.value.toLowerCase() === 'cbcs'))\n retVal = cp;\n }\n return retVal;\n }\n\n /**\n * Returns just the data portion of a single PSSH\n *\n * @param {ArrayBuffer} pssh - the PSSH\n * @return {ArrayBuffer} data portion of the PSSH\n */\n static getPSSHData(pssh) {\n let offset = 8; // Box size and type fields\n let view = new DataView(pssh);\n\n // Read version\n let version = view.getUint8(offset);\n\n offset += 20; // Version (1), flags (3), system ID (16)\n\n if (version > 0) {\n offset += 4 + (16 * view.getUint32(offset)); // Key ID count (4) and All key IDs (16*count)\n }\n\n offset += 4; // Data size\n return pssh.slice(offset);\n }\n\n /**\n * Returns the PSSH associated with the given key system from the concatenated\n * list of PSSH boxes in the given initData\n *\n * @param {KeySystem} keySystem the desired\n * key system\n * @param {ArrayBuffer} initData 'cenc' initialization data. Concatenated list of PSSH.\n * @returns {ArrayBuffer|null} The PSSH box data corresponding to the given key system, null if not found\n * or null if a valid association could not be found.\n */\n static getPSSHForKeySystem(keySystem, initData) {\n let psshList = CommonEncryption.parsePSSHList(initData);\n if (keySystem && psshList.hasOwnProperty(keySystem.uuid.toLowerCase())) {\n return psshList[keySystem.uuid.toLowerCase()];\n }\n return null;\n }\n\n /**\n * Parse a standard common encryption PSSH which contains a simple\n * base64-encoding of the init data\n *\n * @param {Object} cpData the ContentProtection element\n * @param {BASE64} BASE64 reference\n * @returns {ArrayBuffer|null} the init data or null if not found\n */\n static parseInitDataFromContentProtection(cpData, BASE64) {\n if ('pssh' in cpData) {\n\n // Remove whitespaces and newlines from pssh text\n cpData.pssh.__text = cpData.pssh.__text.replace(/\\r?\\n|\\r/g, '').replace(/\\s+/g, '');\n\n return BASE64.decodeArray(cpData.pssh.__text).buffer;\n }\n return null;\n }\n\n /**\n * Parses list of PSSH boxes into keysystem-specific PSSH data\n *\n * @param {ArrayBuffer} data - the concatenated list of PSSH boxes as provided by\n * CDM as initialization data when CommonEncryption content is detected\n * @returns {Object|Array} an object that has a property named according to each of\n * the detected key system UUIDs (e.g. 00000000-0000-0000-0000-0000000000)\n * and a ArrayBuffer (the entire PSSH box) as the property value\n */\n static parsePSSHList(data) {\n\n if (data === null || data === undefined)\n return [];\n\n let dv = new DataView(data.buffer || data); // data.buffer first for Uint8Array support\n let done = false;\n let pssh = {};\n\n // TODO: Need to check every data read for end of buffer\n let byteCursor = 0;\n while (!done) {\n\n let size,\n nextBox,\n version,\n systemID,\n psshDataSize;\n let boxStart = byteCursor;\n\n if (byteCursor >= dv.buffer.byteLength)\n break;\n\n /* Box size */\n size = dv.getUint32(byteCursor);\n nextBox = byteCursor + size;\n byteCursor += 4;\n\n /* Verify PSSH */\n if (dv.getUint32(byteCursor) !== 0x70737368) {\n byteCursor = nextBox;\n continue;\n }\n byteCursor += 4;\n\n /* Version must be 0 or 1 */\n version = dv.getUint8(byteCursor);\n if (version !== 0 && version !== 1) {\n byteCursor = nextBox;\n continue;\n }\n byteCursor++;\n\n byteCursor += 3; /* skip flags */\n\n // 16-byte UUID/SystemID\n systemID = '';\n let i, val;\n for (i = 0; i < 4; i++) {\n val = dv.getUint8(byteCursor + i).toString(16);\n systemID += (val.length === 1) ? '0' + val : val;\n }\n byteCursor += 4;\n systemID += '-';\n for (i = 0; i < 2; i++) {\n val = dv.getUint8(byteCursor + i).toString(16);\n systemID += (val.length === 1) ? '0' + val : val;\n }\n byteCursor += 2;\n systemID += '-';\n for (i = 0; i < 2; i++) {\n val = dv.getUint8(byteCursor + i).toString(16);\n systemID += (val.length === 1) ? '0' + val : val;\n }\n byteCursor += 2;\n systemID += '-';\n for (i = 0; i < 2; i++) {\n val = dv.getUint8(byteCursor + i).toString(16);\n systemID += (val.length === 1) ? '0' + val : val;\n }\n byteCursor += 2;\n systemID += '-';\n for (i = 0; i < 6; i++) {\n val = dv.getUint8(byteCursor + i).toString(16);\n systemID += (val.length === 1) ? '0' + val : val;\n }\n byteCursor += 6;\n\n systemID = systemID.toLowerCase();\n\n /* PSSH Data Size */\n psshDataSize = dv.getUint32(byteCursor);\n byteCursor += 4;\n\n /* PSSH Data */\n pssh[systemID] = dv.buffer.slice(boxStart, nextBox);\n byteCursor = nextBox;\n }\n\n return pssh;\n }\n}\n\nexport default CommonEncryption;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport ProtectionController from './controllers/ProtectionController';\nimport ProtectionKeyController from './controllers/ProtectionKeyController';\nimport ProtectionEvents from './ProtectionEvents';\nimport ProtectionErrors from './errors/ProtectionErrors';\nimport ProtectionModel_21Jan2015 from './models/ProtectionModel_21Jan2015';\nimport ProtectionModel_3Feb2014 from './models/ProtectionModel_3Feb2014';\nimport ProtectionModel_01b from './models/ProtectionModel_01b';\n\nconst APIS_ProtectionModel_01b = [\n // Un-prefixed as per spec\n {\n // Video Element\n generateKeyRequest: 'generateKeyRequest',\n addKey: 'addKey',\n cancelKeyRequest: 'cancelKeyRequest',\n\n // Events\n needkey: 'needkey',\n keyerror: 'keyerror',\n keyadded: 'keyadded',\n keymessage: 'keymessage'\n },\n // Webkit-prefixed (early Chrome versions and Chrome with EME disabled in chrome://flags)\n {\n // Video Element\n generateKeyRequest: 'webkitGenerateKeyRequest',\n addKey: 'webkitAddKey',\n cancelKeyRequest: 'webkitCancelKeyRequest',\n\n // Events\n needkey: 'webkitneedkey',\n keyerror: 'webkitkeyerror',\n keyadded: 'webkitkeyadded',\n keymessage: 'webkitkeymessage'\n }\n];\n\nconst APIS_ProtectionModel_3Feb2014 = [\n // Un-prefixed as per spec\n // Chrome 38-39 (and some earlier versions) with chrome://flags -- Enable Encrypted Media Extensions\n {\n // Video Element\n setMediaKeys: 'setMediaKeys',\n // MediaKeys\n MediaKeys: 'MediaKeys',\n // MediaKeySession\n release: 'close',\n\n // Events\n needkey: 'needkey',\n error: 'keyerror',\n message: 'keymessage',\n ready: 'keyadded',\n close: 'keyclose'\n },\n // MS-prefixed (IE11, Windows 8.1)\n {\n // Video Element\n setMediaKeys: 'msSetMediaKeys',\n // MediaKeys\n MediaKeys: 'MSMediaKeys',\n // MediaKeySession\n release: 'close',\n // Events\n needkey: 'msneedkey',\n error: 'mskeyerror',\n message: 'mskeymessage',\n ready: 'mskeyadded',\n close: 'mskeyclose'\n }\n];\n\nfunction Protection() {\n let instance;\n const context = this.context;\n\n /**\n * Create a ProtectionController and associated ProtectionModel for use with\n * a single piece of content.\n *\n * @param {Object} config\n * @return {ProtectionController} protection controller\n *\n */\n function createProtectionSystem(config) {\n let controller = null;\n\n const protectionKeyController = ProtectionKeyController(context).getInstance();\n protectionKeyController.setConfig({ debug: config.debug, BASE64: config.BASE64 });\n protectionKeyController.initialize();\n\n let protectionModel = getProtectionModel(config);\n\n if (!controller && protectionModel) {//TODO add ability to set external controller if still needed at all?\n controller = ProtectionController(context).create({\n protectionModel: protectionModel,\n protectionKeyController: protectionKeyController,\n eventBus: config.eventBus,\n debug: config.debug,\n events: config.events,\n BASE64: config.BASE64,\n constants: config.constants\n });\n config.capabilities.setEncryptedMediaSupported(true);\n }\n return controller;\n }\n\n function getProtectionModel(config) {\n const debug = config.debug;\n const logger = debug.getLogger(instance);\n const eventBus = config.eventBus;\n const errHandler = config.errHandler;\n const videoElement = config.videoModel ? config.videoModel.getElement() : null;\n\n if ((!videoElement || videoElement.onencrypted !== undefined) &&\n (!videoElement || videoElement.mediaKeys !== undefined)) {\n logger.info('EME detected on this user agent! (ProtectionModel_21Jan2015)');\n return ProtectionModel_21Jan2015(context).create({ debug: debug, eventBus: eventBus, events: config.events });\n } else if (getAPI(videoElement, APIS_ProtectionModel_3Feb2014)) {\n logger.info('EME detected on this user agent! (ProtectionModel_3Feb2014)');\n return ProtectionModel_3Feb2014(context).create({ debug: debug, eventBus: eventBus, events: config.events, api: getAPI(videoElement, APIS_ProtectionModel_3Feb2014) });\n } else if (getAPI(videoElement, APIS_ProtectionModel_01b)) {\n logger.info('EME detected on this user agent! (ProtectionModel_01b)');\n return ProtectionModel_01b(context).create({ debug: debug, eventBus: eventBus, errHandler: errHandler, events: config.events, api: getAPI(videoElement, APIS_ProtectionModel_01b) });\n } else {\n logger.warn('No supported version of EME detected on this user agent! - Attempts to play encrypted content will fail!');\n return null;\n }\n }\n\n function getAPI(videoElement, apis) {\n for (let i = 0; i < apis.length; i++) {\n const api = apis[i];\n // detect if api is supported by browser\n // check only first function in api -> should be fine\n if (typeof videoElement[api[Object.keys(api)[0]]] !== 'function') {\n continue;\n }\n\n return api;\n }\n\n return null;\n }\n\n instance = {\n createProtectionSystem: createProtectionSystem\n };\n\n return instance;\n}\n\nProtection.__dashjs_factory_name = 'Protection';\nconst factory = dashjs.FactoryMaker.getClassFactory(Protection); /* jshint ignore:line */\nfactory.events = ProtectionEvents;\nfactory.errors = ProtectionErrors;\ndashjs.FactoryMaker.updateClassFactory(Protection.__dashjs_factory_name, factory); /* jshint ignore:line */\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport ProtectionController from './controllers/ProtectionController';\nimport ProtectionKeyController from './controllers/ProtectionKeyController';\nimport ProtectionEvents from './ProtectionEvents';\nimport ProtectionErrors from './errors/ProtectionErrors';\nimport ProtectionModel_21Jan2015 from './models/ProtectionModel_21Jan2015';\nimport ProtectionModel_3Feb2014 from './models/ProtectionModel_3Feb2014';\nimport ProtectionModel_01b from './models/ProtectionModel_01b';\n\nconst APIS_ProtectionModel_01b = [\n // Un-prefixed as per spec\n {\n // Video Element\n generateKeyRequest: 'generateKeyRequest',\n addKey: 'addKey',\n cancelKeyRequest: 'cancelKeyRequest',\n\n // Events\n needkey: 'needkey',\n keyerror: 'keyerror',\n keyadded: 'keyadded',\n keymessage: 'keymessage'\n },\n // Webkit-prefixed (early Chrome versions and Chrome with EME disabled in chrome://flags)\n {\n // Video Element\n generateKeyRequest: 'webkitGenerateKeyRequest',\n addKey: 'webkitAddKey',\n cancelKeyRequest: 'webkitCancelKeyRequest',\n\n // Events\n needkey: 'webkitneedkey',\n keyerror: 'webkitkeyerror',\n keyadded: 'webkitkeyadded',\n keymessage: 'webkitkeymessage'\n }\n];\n\nconst APIS_ProtectionModel_3Feb2014 = [\n // Un-prefixed as per spec\n // Chrome 38-39 (and some earlier versions) with chrome://flags -- Enable Encrypted Media Extensions\n {\n // Video Element\n setMediaKeys: 'setMediaKeys',\n // MediaKeys\n MediaKeys: 'MediaKeys',\n // MediaKeySession\n release: 'close',\n\n // Events\n needkey: 'needkey',\n error: 'keyerror',\n message: 'keymessage',\n ready: 'keyadded',\n close: 'keyclose'\n },\n // MS-prefixed (IE11, Windows 8.1)\n {\n // Video Element\n setMediaKeys: 'msSetMediaKeys',\n // MediaKeys\n MediaKeys: 'MSMediaKeys',\n // MediaKeySession\n release: 'close',\n // Events\n needkey: 'msneedkey',\n error: 'mskeyerror',\n message: 'mskeymessage',\n ready: 'mskeyadded',\n close: 'mskeyclose'\n }\n];\n\nfunction Protection() {\n let instance;\n const context = this.context;\n\n /**\n * Create a ProtectionController and associated ProtectionModel for use with\n * a single piece of content.\n *\n * @param {Object} config\n * @return {ProtectionController} protection controller\n *\n */\n function createProtectionSystem(config) {\n let controller = null;\n\n const protectionKeyController = ProtectionKeyController(context).getInstance();\n protectionKeyController.setConfig({ debug: config.debug, BASE64: config.BASE64 });\n protectionKeyController.initialize();\n\n let protectionModel = getProtectionModel(config);\n\n if (!controller && protectionModel) {//TODO add ability to set external controller if still needed at all?\n controller = ProtectionController(context).create({\n protectionModel: protectionModel,\n protectionKeyController: protectionKeyController,\n eventBus: config.eventBus,\n debug: config.debug,\n events: config.events,\n BASE64: config.BASE64,\n constants: config.constants,\n cmcdModel: config.cmcdModel\n });\n config.capabilities.setEncryptedMediaSupported(true);\n }\n return controller;\n }\n\n function getProtectionModel(config) {\n const debug = config.debug;\n const logger = debug.getLogger(instance);\n const eventBus = config.eventBus;\n const errHandler = config.errHandler;\n const videoElement = config.videoModel ? config.videoModel.getElement() : null;\n\n if ((!videoElement || videoElement.onencrypted !== undefined) &&\n (!videoElement || videoElement.mediaKeys !== undefined)) {\n logger.info('EME detected on this user agent! (ProtectionModel_21Jan2015)');\n return ProtectionModel_21Jan2015(context).create({ debug: debug, eventBus: eventBus, events: config.events });\n } else if (getAPI(videoElement, APIS_ProtectionModel_3Feb2014)) {\n logger.info('EME detected on this user agent! (ProtectionModel_3Feb2014)');\n return ProtectionModel_3Feb2014(context).create({ debug: debug, eventBus: eventBus, events: config.events, api: getAPI(videoElement, APIS_ProtectionModel_3Feb2014) });\n } else if (getAPI(videoElement, APIS_ProtectionModel_01b)) {\n logger.info('EME detected on this user agent! (ProtectionModel_01b)');\n return ProtectionModel_01b(context).create({ debug: debug, eventBus: eventBus, errHandler: errHandler, events: config.events, api: getAPI(videoElement, APIS_ProtectionModel_01b) });\n } else {\n logger.warn('No supported version of EME detected on this user agent! - Attempts to play encrypted content will fail!');\n return null;\n }\n }\n\n function getAPI(videoElement, apis) {\n for (let i = 0; i < apis.length; i++) {\n const api = apis[i];\n // detect if api is supported by browser\n // check only first function in api -> should be fine\n if (typeof videoElement[api[Object.keys(api)[0]]] !== 'function') {\n continue;\n }\n\n return api;\n }\n\n return null;\n }\n\n instance = {\n createProtectionSystem: createProtectionSystem\n };\n\n return instance;\n}\n\nProtection.__dashjs_factory_name = 'Protection';\nconst factory = dashjs.FactoryMaker.getClassFactory(Protection); /* jshint ignore:line */\nfactory.events = ProtectionEvents;\nfactory.errors = ProtectionErrors;\ndashjs.FactoryMaker.updateClassFactory(Protection.__dashjs_factory_name, factory); /* jshint ignore:line */\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventsBase from '../../core/events/EventsBase';\n/**\n * @class\n */\nclass ProtectionEvents extends EventsBase {\n /**\n * @description Public facing external events to be used when including protection package.\n * All public events will be aggregated into the MediaPlayerEvents Class and can be accessed\n * via MediaPlayer.events. public_ is the prefix that we use to move event names to MediaPlayerEvents.\n */\n constructor () {\n super();\n\n /**\n * Event ID for events delivered when the protection set receives\n * a key message from the CDM\n *\n * @ignore\n */\n this.INTERNAL_KEY_MESSAGE = 'internalKeyMessage';\n\n /**\n * Event ID for events delivered when a key system selection procedure\n * completes\n * @ignore\n */\n this.INTERNAL_KEY_SYSTEM_SELECTED = 'internalKeySystemSelected';\n\n /**\n * Event ID for events delivered when the status of one decryption keys has changed\n * @ignore\n */\n this.INTERNAL_KEY_STATUS_CHANGED = 'internalkeyStatusChanged';\n\n /**\n * Event ID for events delivered when a new key has been added\n *\n * @constant\n * @deprecated The latest versions of the EME specification no longer\n * use this event. {@MediaPlayer.models.protectionModel.eventList.KEY_STATUSES_CHANGED}\n * is preferred.\n * @event ProtectionEvents#KEY_ADDED\n */\n this.KEY_ADDED = 'public_keyAdded';\n /**\n * Event ID for events delivered when an error is encountered by the CDM\n * while processing a license server response message\n * @event ProtectionEvents#KEY_ERROR\n */\n this.KEY_ERROR = 'public_keyError';\n\n /**\n * Event ID for events delivered when the protection set receives\n * a key message from the CDM\n * @event ProtectionEvents#KEY_MESSAGE\n */\n this.KEY_MESSAGE = 'public_keyMessage';\n\n /**\n * Event ID for events delivered when a key session close\n * process has completed\n * @event ProtectionEvents#KEY_SESSION_CLOSED\n */\n this.KEY_SESSION_CLOSED = 'public_keySessionClosed';\n\n /**\n * Event ID for events delivered when a new key sessions creation\n * process has completed\n * @event ProtectionEvents#KEY_SESSION_CREATED\n */\n this.KEY_SESSION_CREATED = 'public_keySessionCreated';\n\n /**\n * Event ID for events delivered when a key session removal\n * process has completed\n * @event ProtectionEvents#KEY_SESSION_REMOVED\n */\n this.KEY_SESSION_REMOVED = 'public_keySessionRemoved';\n\n /**\n * Event ID for events delivered when the status of one or more\n * decryption keys has changed\n * @event ProtectionEvents#KEY_STATUSES_CHANGED\n */\n this.KEY_STATUSES_CHANGED = 'public_keyStatusesChanged';\n\n /**\n * Event ID for events delivered when a key system access procedure\n * has completed\n * @ignore\n */\n this.KEY_SYSTEM_ACCESS_COMPLETE = 'public_keySystemAccessComplete';\n\n /**\n * Event ID for events delivered when a key system selection procedure\n * completes\n * @event ProtectionEvents#KEY_SYSTEM_SELECTED\n */\n this.KEY_SYSTEM_SELECTED = 'public_keySystemSelected';\n\n /**\n * Event ID for events delivered when a license request procedure\n * has completed\n * @event ProtectionEvents#LICENSE_REQUEST_COMPLETE\n */\n this.LICENSE_REQUEST_COMPLETE = 'public_licenseRequestComplete';\n\n /**\n * Sending a license rquest\n * @event ProtectionEvents#LICENSE_REQUEST_SENDING\n */\n this.LICENSE_REQUEST_SENDING = 'public_licenseRequestSending';\n\n /**\n * Event ID for needkey/encrypted events\n * @ignore\n */\n this.NEED_KEY = 'needkey';\n\n /**\n * Event ID for events delivered when the Protection system is detected and created.\n * @event ProtectionEvents#PROTECTION_CREATED\n */\n this.PROTECTION_CREATED = 'public_protectioncreated';\n\n /**\n * Event ID for events delivered when the Protection system is destroyed.\n * @event ProtectionEvents#PROTECTION_DESTROYED\n */\n this.PROTECTION_DESTROYED = 'public_protectiondestroyed';\n\n /**\n * Event ID for events delivered when a new server certificate has\n * been delivered to the CDM\n * @ignore\n */\n this.SERVER_CERTIFICATE_UPDATED = 'serverCertificateUpdated';\n\n /**\n * Event ID for events delivered when the process of shutting down\n * a protection set has completed\n * @ignore\n */\n this.TEARDOWN_COMPLETE = 'protectionTeardownComplete';\n\n /**\n * Event ID for events delivered when a HTMLMediaElement has been\n * associated with the protection set\n * @ignore\n */\n this.VIDEO_ELEMENT_SELECTED = 'videoElementSelected';\n }\n}\n\nlet protectionEvents = new ProtectionEvents();\nexport default protectionEvents;\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport CommonEncryption from '../CommonEncryption';\nimport MediaCapability from '../vo/MediaCapability';\nimport KeySystemConfiguration from '../vo/KeySystemConfiguration';\nimport ProtectionErrors from '../errors/ProtectionErrors';\nimport DashJSError from '../../vo/DashJSError';\n\nconst NEEDKEY_BEFORE_INITIALIZE_RETRIES = 5;\nconst NEEDKEY_BEFORE_INITIALIZE_TIMEOUT = 500;\n\nconst LICENSE_SERVER_REQUEST_RETRIES = 3;\nconst LICENSE_SERVER_REQUEST_RETRY_INTERVAL = 1000;\nconst LICENSE_SERVER_REQUEST_DEFAULT_TIMEOUT = 8000;\n\n/**\n * @module ProtectionController\n * @description Provides access to media protection information and functionality. Each\n * ProtectionController manages a single {@link MediaPlayer.models.ProtectionModel}\n * which encapsulates a set of protection information (EME APIs, selected key system,\n * key sessions). The APIs of ProtectionController mostly align with the latest EME\n * APIs. Key system selection is mostly automated when combined with app-overrideable\n * functionality provided in {@link ProtectionKeyController}.\n * @todo ProtectionController does almost all of its tasks automatically after init() is\n * called. Applications might want more control over this process and want to go through\n * each step manually (key system selection, session creation, session maintenance).\n * @param {Object} config\n */\n\nfunction ProtectionController(config) {\n\n config = config || {};\n const protectionKeyController = config.protectionKeyController;\n let protectionModel = config.protectionModel;\n const eventBus = config.eventBus;\n const events = config.events;\n const debug = config.debug;\n const BASE64 = config.BASE64;\n const constants = config.constants;\n let needkeyRetries = [];\n\n let instance,\n logger,\n pendingNeedKeyData,\n mediaInfoArr,\n protDataSet,\n sessionType,\n robustnessLevel,\n keySystem;\n\n function setup() {\n logger = debug.getLogger(instance);\n pendingNeedKeyData = [];\n mediaInfoArr = [];\n sessionType = 'temporary';\n robustnessLevel = '';\n }\n\n function checkConfig() {\n if (!eventBus || !eventBus.hasOwnProperty('on') || !protectionKeyController || !protectionKeyController.hasOwnProperty('getSupportedKeySystemsFromContentProtection')) {\n throw new Error('Missing config parameter(s)');\n }\n }\n\n /**\n * Initialize this protection system with a given audio\n * or video stream information.\n *\n * @param {StreamInfo} [mediaInfo] Media information\n * @memberof module:ProtectionController\n * @instance\n * @todo This API will change when we have better support for allowing applications\n * to select different adaptation sets for playback. Right now it is clunky for\n * applications to create {@link StreamInfo} with the right information,\n * @ignore\n */\n function initializeForMedia(mediaInfo) {\n // Not checking here if a session for similar KS/KID combination is already created\n // because still don't know which keysystem will be selected.\n // Once Keysystem is selected and before creating the session, we will do that check\n // so we create the strictly necessary DRM sessions\n if (!mediaInfo) {\n throw new Error('mediaInfo can not be null or undefined');\n }\n\n checkConfig();\n\n eventBus.on(events.INTERNAL_KEY_MESSAGE, onKeyMessage, this);\n eventBus.on(events.INTERNAL_KEY_STATUS_CHANGED, onKeyStatusChanged, this);\n\n mediaInfoArr.push(mediaInfo);\n\n // ContentProtection elements are specified at the AdaptationSet level, so the CP for audio\n // and video will be the same. Just use one valid MediaInfo object\n const supportedKS = protectionKeyController.getSupportedKeySystemsFromContentProtection(mediaInfo.contentProtection);\n if (supportedKS && supportedKS.length > 0) {\n selectKeySystem(supportedKS, true);\n }\n }\n\n /**\n * Returns a set of supported key systems and CENC initialization data\n * from the given array of ContentProtection elements. Only\n * key systems that are supported by this player will be returned.\n * Key systems are returned in priority order (highest first).\n *\n * @param {Array.} cps - array of content protection elements parsed\n * from the manifest\n * @returns {Array.} array of objects indicating which supported key\n * systems were found. Empty array is returned if no\n * supported key systems were found\n * @memberof module:ProtectionKeyController\n * @instance\n * @ignore\n */\n function getSupportedKeySystemsFromContentProtection(cps) {\n checkConfig();\n return protectionKeyController.getSupportedKeySystemsFromContentProtection(cps);\n }\n\n /**\n * Create a new key session associated with the given initialization data from\n * the MPD or from the PSSH box in the media\n *\n * @param {ArrayBuffer} initData the initialization data\n * @param {Uint8Array} cdmData the custom data to provide to licenser\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionCreated\n * @todo In older versions of the EME spec, there was a one-to-one relationship between\n * initialization data and key sessions. That is no longer true in the latest APIs. This\n * API will need to modified (and a new \"generateRequest(keySession, initData)\" API created)\n * to come up to speed with the latest EME standard\n * @ignore\n */\n function createKeySession(initData, cdmData) {\n const initDataForKS = CommonEncryption.getPSSHForKeySystem(keySystem, initData);\n const protData = getProtData(keySystem);\n if (initDataForKS) {\n\n // Check for duplicate initData\n const currentInitData = protectionModel.getAllInitData();\n for (let i = 0; i < currentInitData.length; i++) {\n if (protectionKeyController.initDataEquals(initDataForKS, currentInitData[i])) {\n logger.info('DRM: Ignoring initData because we have already seen it!');\n return;\n }\n }\n try {\n protectionModel.createKeySession(initDataForKS, protData, getSessionType(keySystem), cdmData);\n } catch (error) {\n eventBus.trigger(events.KEY_SESSION_CREATED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SESSION_CREATED_ERROR_CODE, ProtectionErrors.KEY_SESSION_CREATED_ERROR_MESSAGE + error.message)\n });\n }\n } else if (initData) {\n protectionModel.createKeySession(initData, protData, getSessionType(keySystem), cdmData);\n } else {\n eventBus.trigger(events.KEY_SESSION_CREATED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SESSION_CREATED_ERROR_CODE, ProtectionErrors.KEY_SESSION_CREATED_ERROR_MESSAGE + 'Selected key system is ' + (keySystem ? keySystem.systemString : null) + '. needkey/encrypted event contains no initData corresponding to that key system!')\n });\n }\n }\n\n /**\n * Loads a key session with the given session ID from persistent storage. This\n * essentially creates a new key session\n *\n * @param {string} sessionID\n * @param {string} initData\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionCreated\n * @ignore\n */\n function loadKeySession(sessionID, initData) {\n checkConfig();\n protectionModel.loadKeySession(sessionID, initData, getSessionType(keySystem));\n }\n\n /**\n * Removes the given key session from persistent storage and closes the session\n * as if {@link ProtectionController#closeKeySession}\n * was called\n *\n * @param {SessionToken} sessionToken the session\n * token\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionRemoved\n * @fires ProtectionController#KeySessionClosed\n * @ignore\n */\n function removeKeySession(sessionToken) {\n checkConfig();\n protectionModel.removeKeySession(sessionToken);\n }\n\n /**\n * Closes the key session and releases all associated decryption keys. These\n * keys will no longer be available for decrypting media\n *\n * @param {SessionToken} sessionToken the session\n * token\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionClosed\n * @ignore\n */\n function closeKeySession(sessionToken) {\n checkConfig();\n protectionModel.closeKeySession(sessionToken);\n }\n\n /**\n * Sets a server certificate for use by the CDM when signing key messages\n * intended for a particular license server. This will fire\n * an error event if a key system has not yet been selected.\n *\n * @param {ArrayBuffer} serverCertificate a CDM-specific license server\n * certificate\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#ServerCertificateUpdated\n */\n function setServerCertificate(serverCertificate) {\n checkConfig();\n protectionModel.setServerCertificate(serverCertificate);\n }\n\n /**\n * Associate this protection system with the given HTMLMediaElement. This\n * causes the system to register for needkey/encrypted events from the given\n * element and provides a destination for setting of MediaKeys\n *\n * @param {HTMLMediaElement} element the media element to which the protection\n * system should be associated\n * @memberof module:ProtectionController\n * @instance\n */\n function setMediaElement(element) {\n checkConfig();\n if (element) {\n protectionModel.setMediaElement(element);\n eventBus.on(events.NEED_KEY, onNeedKey, this);\n } else if (element === null) {\n protectionModel.setMediaElement(element);\n eventBus.off(events.NEED_KEY, onNeedKey, this);\n }\n }\n\n /**\n * Sets the session type to use when creating key sessions. Either \"temporary\" or\n * \"persistent-license\". Default is \"temporary\".\n *\n * @param {string} value the session type\n * @memberof module:ProtectionController\n * @instance\n */\n function setSessionType(value) {\n sessionType = value;\n }\n\n /**\n * Sets the robustness level for video and audio capabilities. Optional to remove Chrome warnings.\n * Possible values are SW_SECURE_CRYPTO, SW_SECURE_DECODE, HW_SECURE_CRYPTO, HW_SECURE_CRYPTO, HW_SECURE_DECODE, HW_SECURE_ALL.\n *\n * @param {string} level the robustness level\n * @memberof module:ProtectionController\n * @instance\n */\n function setRobustnessLevel(level) {\n robustnessLevel = level;\n }\n\n /**\n * Attach KeySystem-specific data to use for license acquisition with EME\n *\n * @param {Object} data an object containing property names corresponding to\n * key system name strings (e.g. \"org.w3.clearkey\") and associated values\n * being instances of {@link ProtectionData}\n * @memberof module:ProtectionController\n * @instance\n * @ignore\n */\n function setProtectionData(data) {\n protDataSet = data;\n protectionKeyController.setProtectionData(data);\n }\n\n /**\n * Stop method is called when current playback is stopped/resetted.\n *\n * @memberof module:ProtectionController\n * @instance\n */\n function stop() {\n if (protectionModel) {\n protectionModel.stop();\n }\n }\n\n\n /**\n * Destroys all protection data associated with this protection set. This includes\n * deleting all key sessions. In the case of persistent key sessions, the sessions\n * will simply be unloaded and not deleted. Additionally, if this protection set is\n * associated with a HTMLMediaElement, it will be detached from that element.\n *\n * @memberof module:ProtectionController\n * @instance\n * @ignore\n */\n function reset() {\n checkConfig();\n\n eventBus.off(events.INTERNAL_KEY_MESSAGE, onKeyMessage, this);\n eventBus.off(events.INTERNAL_KEY_STATUS_CHANGED, onKeyStatusChanged, this);\n\n setMediaElement(null);\n\n keySystem = undefined;//TODO-Refactor look at why undefined is needed for this. refactor\n\n if (protectionModel) {\n protectionModel.reset();\n protectionModel = null;\n }\n\n needkeyRetries.forEach(retryTimeout => clearTimeout(retryTimeout));\n needkeyRetries = [];\n\n mediaInfoArr = [];\n }\n\n ///////////////\n // Private\n ///////////////\n\n function getProtData(keySystem) {\n let protData = null;\n if (keySystem) {\n const keySystemString = keySystem.systemString;\n\n if (protDataSet) {\n protData = (keySystemString in protDataSet) ? protDataSet[keySystemString] : null;\n }\n }\n return protData;\n }\n\n function getKeySystemConfiguration(keySystem) {\n const protData = getProtData(keySystem);\n const audioCapabilities = [];\n const videoCapabilities = [];\n const audioRobustness = (protData && protData.audioRobustness && protData.audioRobustness.length > 0) ? protData.audioRobustness : robustnessLevel;\n const videoRobustness = (protData && protData.videoRobustness && protData.videoRobustness.length > 0) ? protData.videoRobustness : robustnessLevel;\n const ksSessionType = getSessionType(keySystem);\n const distinctiveIdentifier = (protData && protData.distinctiveIdentifier) ? protData.distinctiveIdentifier : 'optional';\n const persistentState = (protData && protData.persistentState) ? protData.persistentState : (ksSessionType === 'temporary') ? 'optional' : 'required';\n\n mediaInfoArr.forEach((media) => {\n if (media.type === constants.AUDIO) {\n audioCapabilities.push(new MediaCapability(media.codec, audioRobustness));\n } else if (media.type === constants.VIDEO) {\n videoCapabilities.push(new MediaCapability(media.codec, videoRobustness));\n }\n });\n\n return new KeySystemConfiguration(\n audioCapabilities, videoCapabilities, distinctiveIdentifier,\n persistentState,\n [ksSessionType]);\n }\n\n function getSessionType(keySystem) {\n const protData = getProtData(keySystem);\n const ksSessionType = (protData && protData.sessionType) ? protData.sessionType : sessionType;\n return ksSessionType;\n }\n\n function selectKeySystem(supportedKS, fromManifest) {\n const self = this;\n const requestedKeySystems = [];\n\n // Reorder key systems according to priority order provided in protectionData\n supportedKS = supportedKS.sort((ksA, ksB) => {\n let indexA = (protDataSet && protDataSet[ksA.ks.systemString] && protDataSet[ksA.ks.systemString].priority >= 0) ? protDataSet[ksA.ks.systemString].priority : supportedKS.length;\n let indexB = (protDataSet && protDataSet[ksB.ks.systemString] && protDataSet[ksB.ks.systemString].priority >= 0) ? protDataSet[ksB.ks.systemString].priority : supportedKS.length;\n return indexA - indexB;\n });\n\n let ksIdx;\n if (keySystem) {\n // We have a key system\n for (ksIdx = 0; ksIdx < supportedKS.length; ksIdx++) {\n if (keySystem === supportedKS[ksIdx].ks) {\n\n requestedKeySystems.push({\n ks: supportedKS[ksIdx].ks,\n configs: [getKeySystemConfiguration(keySystem)]\n });\n\n // Ensure that we would be granted key system access using the key\n // system and codec information\n const onKeySystemAccessComplete = function (event) {\n eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n if (event.error) {\n if (!fromManifest) {\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, { error: new DashJSError(ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE, ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE + event.error) });\n }\n } else {\n logger.info('DRM: KeySystem Access Granted');\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, { data: event.data });\n const protData = getProtData(keySystem);\n if (protectionKeyController.isClearKey(keySystem)) {\n // For Clearkey: if parameters for generating init data was provided by the user, use them for generating\n // initData and overwrite possible initData indicated in encrypted event (EME)\n if (protData && protData.hasOwnProperty('clearkeys')) {\n const initData = {kids: Object.keys(protData.clearkeys)};\n supportedKS[ksIdx].initData = new TextEncoder().encode(JSON.stringify(initData));\n }\n }\n if (supportedKS[ksIdx].sessionId) {\n // Load MediaKeySession with sessionId\n loadKeySession(supportedKS[ksIdx].sessionId, supportedKS[ksIdx].initData);\n } else if (supportedKS[ksIdx].initData) {\n // Create new MediaKeySession with initData\n createKeySession(supportedKS[ksIdx].initData, supportedKS[ksIdx].cdmData);\n }\n }\n };\n eventBus.on(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n protectionModel.requestKeySystemAccess(requestedKeySystems);\n break;\n }\n }\n } else if (keySystem === undefined) {\n // First time through, so we need to select a key system\n keySystem = null;\n pendingNeedKeyData.push(supportedKS);\n\n // Add all key systems to our request list since we have yet to select a key system\n for (let i = 0; i < supportedKS.length; i++) {\n requestedKeySystems.push({\n ks: supportedKS[i].ks,\n configs: [getKeySystemConfiguration(supportedKS[i].ks)]\n });\n }\n\n let keySystemAccess;\n const onKeySystemAccessComplete = function (event) {\n eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n if (event.error) {\n keySystem = undefined;\n eventBus.off(events.INTERNAL_KEY_SYSTEM_SELECTED, onKeySystemSelected, self);\n if (!fromManifest) {\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE, ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE + event.error)\n });\n }\n } else {\n keySystemAccess = event.data;\n logger.info('DRM: KeySystem Access Granted (' + keySystemAccess.keySystem.systemString + ')! Selecting key system...');\n protectionModel.selectKeySystem(keySystemAccess);\n }\n };\n var onKeySystemSelected = function (event) {\n eventBus.off(events.INTERNAL_KEY_SYSTEM_SELECTED, onKeySystemSelected, self);\n eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n if (!event.error) {\n if (!protectionModel) {\n return;\n }\n keySystem = protectionModel.getKeySystem();\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, { data: keySystemAccess });\n // Set server certificate from protData\n const protData = getProtData(keySystem);\n if (protData && protData.serverCertificate && protData.serverCertificate.length > 0) {\n protectionModel.setServerCertificate(BASE64.decodeArray(protData.serverCertificate).buffer);\n }\n for (let i = 0; i < pendingNeedKeyData.length; i++) {\n for (ksIdx = 0; ksIdx < pendingNeedKeyData[i].length; ksIdx++) {\n if (keySystem === pendingNeedKeyData[i][ksIdx].ks) {\n if (protectionKeyController.isClearKey(keySystem)) {\n // For Clearkey: if parameters for generating init data was provided by the user, use them for generating\n // initData and overwrite possible initData indicated in encrypted event (EME)\n if (protData && protData.hasOwnProperty('clearkeys')) {\n const initData = {kids: Object.keys(protData.clearkeys)};\n pendingNeedKeyData[i][ksIdx].initData = new TextEncoder().encode(JSON.stringify(initData));\n }\n }\n if (pendingNeedKeyData[i][ksIdx].sessionId) {\n // Load MediaKeySession with sessionId\n loadKeySession(pendingNeedKeyData[i][ksIdx].sessionId, pendingNeedKeyData[i][ksIdx].initData);\n } else if (pendingNeedKeyData[i][ksIdx].initData !== null) {\n // Create new MediaKeySession with initData\n createKeySession(pendingNeedKeyData[i][ksIdx].initData, pendingNeedKeyData[i][ksIdx].cdmData);\n }\n break;\n }\n }\n }\n } else {\n keySystem = undefined;\n if (!fromManifest) {\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE, ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE + 'Error selecting key system! -- ' + event.error)\n });\n }\n }\n };\n eventBus.on(events.INTERNAL_KEY_SYSTEM_SELECTED, onKeySystemSelected, self);\n eventBus.on(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n protectionModel.requestKeySystemAccess(requestedKeySystems);\n } else {\n // We are in the process of selecting a key system, so just save the data\n pendingNeedKeyData.push(supportedKS);\n }\n }\n\n function sendLicenseRequestCompleteEvent(data, error) {\n eventBus.trigger(events.LICENSE_REQUEST_COMPLETE, { data: data, error: error });\n }\n\n function onKeyStatusChanged(e) {\n if (e.error) {\n eventBus.trigger(events.KEY_STATUSES_CHANGED, { data: null, error: e.error });\n } else {\n logger.debug('DRM: key status = ' + e.status);\n }\n }\n\n function onKeyMessage(e) {\n logger.debug('DRM: onKeyMessage');\n\n // Dispatch event to applications indicating we received a key message\n const keyMessage = e.data;\n eventBus.trigger(events.KEY_MESSAGE, { data: keyMessage });\n const messageType = (keyMessage.messageType) ? keyMessage.messageType : 'license-request';\n const message = keyMessage.message;\n const sessionToken = keyMessage.sessionToken;\n const protData = getProtData(keySystem);\n const keySystemString = keySystem ? keySystem.systemString : null;\n const licenseServerData = protectionKeyController.getLicenseServer(keySystem, protData, messageType);\n const eventData = {sessionToken: sessionToken, messageType: messageType};\n\n // Ensure message from CDM is not empty\n if (!message || message.byteLength === 0) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_CODE, ProtectionErrors.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_MESSAGE));\n return;\n }\n\n // Message not destined for license server\n if (!licenseServerData) {\n logger.debug('DRM: License server request not required for this message (type = ' + e.data.messageType + '). Session ID = ' + sessionToken.getSessionID());\n sendLicenseRequestCompleteEvent(eventData);\n return;\n }\n\n // Perform any special handling for ClearKey\n if (protectionKeyController.isClearKey(keySystem)) {\n const clearkeys = protectionKeyController.processClearKeyLicenseRequest(keySystem, protData, message);\n if (clearkeys) {\n logger.debug('DRM: ClearKey license request handled by application!');\n sendLicenseRequestCompleteEvent(eventData);\n protectionModel.updateKeySession(sessionToken, clearkeys);\n return;\n }\n }\n\n // All remaining key system scenarios require a request to a remote license server\n // Determine license server URL\n let url = null;\n if (protData && protData.serverURL) {\n const serverURL = protData.serverURL;\n if (typeof serverURL === 'string' && serverURL !== '') {\n url = serverURL;\n } else if (typeof serverURL === 'object' && serverURL.hasOwnProperty(messageType)) {\n url = serverURL[messageType];\n }\n } else if (protData && protData.laURL && protData.laURL !== '') {\n // TODO: Deprecated!\n url = protData.laURL;\n } else {\n // For clearkey use the url defined in the manifest\n if (protectionKeyController.isClearKey(keySystem)) {\n url = keySystem.getLicenseServerUrlFromMediaInfo(mediaInfoArr);\n } else {\n const psshData = CommonEncryption.getPSSHData(sessionToken.initData);\n url = keySystem.getLicenseServerURLFromInitData(psshData);\n if (!url) {\n url = e.data.laURL;\n }\n }\n }\n // Possibly update or override the URL based on the message\n url = licenseServerData.getServerURLFromMessage(url, message, messageType);\n\n // Ensure valid license server URL\n if (!url) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_CODE, ProtectionErrors.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_MESSAGE));\n return;\n }\n\n // Set optional XMLHttpRequest headers from protection data and message\n const reqHeaders = {};\n let withCredentials = false;\n const updateHeaders = function (headers) {\n if (headers) {\n for (const key in headers) {\n if ('authorization' === key.toLowerCase()) {\n withCredentials = true;\n }\n reqHeaders[key] = headers[key];\n }\n }\n };\n if (protData) {\n updateHeaders(protData.httpRequestHeaders);\n }\n updateHeaders(keySystem.getRequestHeadersFromMessage(message));\n\n // Overwrite withCredentials property from protData if present\n if (protData && typeof protData.withCredentials == 'boolean') {\n withCredentials = protData.withCredentials;\n }\n\n const reportError = function (xhr, eventData, keySystemString, messageType) {\n const errorMsg = ((xhr.response) ? licenseServerData.getErrorResponse(xhr.response, keySystemString, messageType) : 'NONE');\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,\n ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE + keySystemString + ' update, XHR complete. status is \"' +\n xhr.statusText + '\" (' + xhr.status + '), readyState is ' + xhr.readyState + '. Response is ' + errorMsg));\n };\n\n const onLoad = function (xhr) {\n if (!protectionModel) {\n return;\n }\n\n if (xhr.status === 200) {\n const licenseMessage = licenseServerData.getLicenseMessage(xhr.response, keySystemString, messageType);\n if (licenseMessage !== null) {\n sendLicenseRequestCompleteEvent(eventData);\n protectionModel.updateKeySession(sessionToken, licenseMessage);\n } else {\n reportError(xhr, eventData, keySystemString, messageType);\n }\n } else {\n reportError(xhr, eventData, keySystemString, messageType);\n }\n };\n\n const onAbort = function (xhr) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,\n ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE + keySystemString + ' update, XHR aborted. status is \"' +\n xhr.statusText + '\" (' + xhr.status + '), readyState is ' + xhr.readyState));\n };\n\n const onError = function (xhr) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,\n ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE + keySystemString + ' update, XHR error. status is \"' +\n xhr.statusText + '\" (' + xhr.status + '), readyState is ' + xhr.readyState));\n };\n\n //const reqPayload = keySystem.getLicenseRequestFromMessage(message);\n const reqPayload = keySystem.getLicenseRequestFromMessage(message);\n const reqMethod = licenseServerData.getHTTPMethod(messageType);\n const responseType = licenseServerData.getResponseType(keySystemString, messageType);\n const timeout = protData && !isNaN(protData.httpTimeout) ? protData.httpTimeout : LICENSE_SERVER_REQUEST_DEFAULT_TIMEOUT;\n const sessionId = sessionToken.getSessionID() || null;\n\n doLicenseRequest(url, reqHeaders, reqMethod, responseType, withCredentials, reqPayload,\n LICENSE_SERVER_REQUEST_RETRIES, timeout, onLoad, onAbort, onError, sessionId);\n }\n\n // Implement license requests with a retry mechanism to avoid temporary network issues to affect playback experience\n function doLicenseRequest(url, headers, method, responseType, withCredentials, payload, retriesCount, timeout, onLoad, onAbort, onError, sessionId) {\n const xhr = new XMLHttpRequest();\n\n xhr.open(method, url, true);\n xhr.responseType = responseType;\n xhr.withCredentials = withCredentials;\n if (timeout > 0) {\n xhr.timeout = timeout;\n }\n for (const key in headers) {\n xhr.setRequestHeader(key, headers[key]);\n }\n\n const retryRequest = function () {\n // fail silently and retry\n retriesCount--;\n setTimeout(function () {\n doLicenseRequest(url, headers, method, responseType, withCredentials, payload,\n retriesCount, timeout, onLoad, onAbort, onError, sessionId);\n }, LICENSE_SERVER_REQUEST_RETRY_INTERVAL);\n };\n\n xhr.onload = function () {\n if (this.status === 200 || retriesCount <= 0) {\n onLoad(this);\n } else {\n logger.warn('License request failed (' + this.status + '). Retrying it... Pending retries: ' + retriesCount);\n retryRequest();\n }\n };\n\n xhr.ontimeout = xhr.onerror = function () {\n if (retriesCount <= 0) {\n onError(this);\n } else {\n logger.warn('License request network request failed . Retrying it... Pending retries: ' + retriesCount);\n retryRequest();\n }\n };\n\n xhr.onabort = function () {\n onAbort(this);\n };\n\n eventBus.trigger(events.LICENSE_REQUEST_SENDING, {\n url,\n headers,\n payload,\n sessionId\n });\n\n xhr.send(payload);\n }\n\n function onNeedKey(event, retry) {\n logger.debug('DRM: onNeedKey');\n // Ignore non-cenc initData\n if (event.key.initDataType !== 'cenc') {\n logger.warn('DRM: Only \\'cenc\\' initData is supported! Ignoring initData of type: ' + event.key.initDataType);\n return;\n }\n\n if (mediaInfoArr.length === 0) {\n logger.warn('DRM: onNeedKey called before initializeForMedia, wait until initialized');\n retry = typeof retry === 'undefined' ? 1 : retry + 1;\n if (retry < NEEDKEY_BEFORE_INITIALIZE_RETRIES) {\n needkeyRetries.push(setTimeout(() => {\n onNeedKey(event, retry);\n }, NEEDKEY_BEFORE_INITIALIZE_TIMEOUT));\n return;\n }\n\n }\n\n // Some browsers return initData as Uint8Array (IE), some as ArrayBuffer (Chrome).\n // Convert to ArrayBuffer\n let abInitData = event.key.initData;\n if (ArrayBuffer.isView(abInitData)) {\n abInitData = abInitData.buffer;\n }\n\n // If key system has already been selected and initData already seen, then do nothing\n if (keySystem) {\n const initDataForKS = CommonEncryption.getPSSHForKeySystem(keySystem, abInitData);\n if (initDataForKS) {\n\n // Check for duplicate initData\n const currentInitData = protectionModel.getAllInitData();\n for (let i = 0; i < currentInitData.length; i++) {\n if (protectionKeyController.initDataEquals(initDataForKS, currentInitData[i])) {\n logger.warn('DRM: Ignoring initData because we have already seen it!');\n return;\n }\n }\n }\n }\n\n logger.debug('DRM: initData:', String.fromCharCode.apply(null, new Uint8Array(abInitData)));\n\n const supportedKS = protectionKeyController.getSupportedKeySystems(abInitData, protDataSet);\n if (supportedKS.length === 0) {\n logger.debug('DRM: Received needkey event with initData, but we don\\'t support any of the key systems!');\n return;\n }\n\n selectKeySystem(supportedKS, false);\n }\n\n function getKeySystems() {\n return protectionKeyController ? protectionKeyController.getKeySystems() : [];\n }\n\n function setKeySystems(keySystems) {\n if (protectionKeyController) {\n protectionKeyController.setKeySystems(keySystems);\n }\n }\n\n instance = {\n initializeForMedia: initializeForMedia,\n createKeySession: createKeySession,\n loadKeySession: loadKeySession,\n removeKeySession: removeKeySession,\n closeKeySession: closeKeySession,\n setServerCertificate: setServerCertificate,\n setMediaElement: setMediaElement,\n setSessionType: setSessionType,\n setRobustnessLevel: setRobustnessLevel,\n setProtectionData: setProtectionData,\n getSupportedKeySystemsFromContentProtection: getSupportedKeySystemsFromContentProtection,\n getKeySystems: getKeySystems,\n setKeySystems: setKeySystems,\n stop: stop,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nProtectionController.__dashjs_factory_name = 'ProtectionController';\nexport default dashjs.FactoryMaker.getClassFactory(ProtectionController); /* jshint ignore:line */\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport CommonEncryption from '../CommonEncryption';\nimport MediaCapability from '../vo/MediaCapability';\nimport KeySystemConfiguration from '../vo/KeySystemConfiguration';\nimport ProtectionErrors from '../errors/ProtectionErrors';\nimport DashJSError from '../../vo/DashJSError';\nimport LicenseRequest from '../vo/LicenseRequest';\nimport LicenseResponse from '../vo/LicenseResponse';\nimport { HTTPRequest } from '../../vo/metrics/HTTPRequest';\nimport Utils from '../../../core/Utils';\n\nconst NEEDKEY_BEFORE_INITIALIZE_RETRIES = 5;\nconst NEEDKEY_BEFORE_INITIALIZE_TIMEOUT = 500;\n\nconst LICENSE_SERVER_REQUEST_RETRIES = 3;\nconst LICENSE_SERVER_REQUEST_RETRY_INTERVAL = 1000;\nconst LICENSE_SERVER_REQUEST_DEFAULT_TIMEOUT = 8000;\n\n/**\n * @module ProtectionController\n * @description Provides access to media protection information and functionality. Each\n * ProtectionController manages a single {@link MediaPlayer.models.ProtectionModel}\n * which encapsulates a set of protection information (EME APIs, selected key system,\n * key sessions). The APIs of ProtectionController mostly align with the latest EME\n * APIs. Key system selection is mostly automated when combined with app-overrideable\n * functionality provided in {@link ProtectionKeyController}.\n * @todo ProtectionController does almost all of its tasks automatically after init() is\n * called. Applications might want more control over this process and want to go through\n * each step manually (key system selection, session creation, session maintenance).\n * @param {Object} config\n */\n\nfunction ProtectionController(config) {\n\n config = config || {};\n const protectionKeyController = config.protectionKeyController;\n let protectionModel = config.protectionModel;\n const eventBus = config.eventBus;\n const events = config.events;\n const debug = config.debug;\n const BASE64 = config.BASE64;\n const constants = config.constants;\n let needkeyRetries = [];\n const cmcdModel = config.cmcdModel;\n\n let instance,\n logger,\n pendingNeedKeyData,\n mediaInfoArr,\n protDataSet,\n sessionType,\n robustnessLevel,\n keySystem,\n licenseRequestFilters,\n licenseResponseFilters;\n\n function setup() {\n logger = debug.getLogger(instance);\n pendingNeedKeyData = [];\n mediaInfoArr = [];\n sessionType = 'temporary';\n robustnessLevel = '';\n licenseRequestFilters = [];\n licenseResponseFilters = [];\n }\n\n function checkConfig() {\n if (!eventBus || !eventBus.hasOwnProperty('on') || !protectionKeyController || !protectionKeyController.hasOwnProperty('getSupportedKeySystemsFromContentProtection')) {\n throw new Error('Missing config parameter(s)');\n }\n }\n\n /**\n * Initialize this protection system with a given audio\n * or video stream information.\n *\n * @param {StreamInfo} [mediaInfo] Media information\n * @memberof module:ProtectionController\n * @instance\n * @todo This API will change when we have better support for allowing applications\n * to select different adaptation sets for playback. Right now it is clunky for\n * applications to create {@link StreamInfo} with the right information,\n * @ignore\n */\n function initializeForMedia(mediaInfo) {\n // Not checking here if a session for similar KS/KID combination is already created\n // because still don't know which keysystem will be selected.\n // Once Keysystem is selected and before creating the session, we will do that check\n // so we create the strictly necessary DRM sessions\n if (!mediaInfo) {\n throw new Error('mediaInfo can not be null or undefined');\n }\n\n checkConfig();\n\n eventBus.on(events.INTERNAL_KEY_MESSAGE, onKeyMessage, this);\n eventBus.on(events.INTERNAL_KEY_STATUS_CHANGED, onKeyStatusChanged, this);\n mediaInfoArr.push(mediaInfo);\n\n // ContentProtection elements are specified at the AdaptationSet level, so the CP for audio\n // and video will be the same. Just use one valid MediaInfo object\n const supportedKS = protectionKeyController.getSupportedKeySystemsFromContentProtection(mediaInfo.contentProtection);\n if (supportedKS && supportedKS.length > 0) {\n selectKeySystem(supportedKS, true);\n }\n }\n\n /**\n * Removes all entries from the mediaInfoArr array for a specific stream id\n * @param {String} streamId\n */\n function clearMediaInfoArrayByStreamId(streamId) {\n mediaInfoArr = mediaInfoArr.filter((mediaInfo) => {\n return mediaInfo.streamInfo.id !== streamId;\n });\n }\n\n /**\n * Returns a set of supported key systems and CENC initialization data\n * from the given array of ContentProtection elements. Only\n * key systems that are supported by this player will be returned.\n * Key systems are returned in priority order (highest first).\n *\n * @param {Array.} cps - array of content protection elements parsed\n * from the manifest\n * @returns {Array.} array of objects indicating which supported key\n * systems were found. Empty array is returned if no\n * supported key systems were found\n * @memberof module:ProtectionKeyController\n * @instance\n * @ignore\n */\n function getSupportedKeySystemsFromContentProtection(cps) {\n checkConfig();\n return protectionKeyController.getSupportedKeySystemsFromContentProtection(cps);\n }\n\n /**\n * Create a new key session associated with the given initialization data from\n * the MPD or from the PSSH box in the media\n *\n * @param {ArrayBuffer} initData the initialization data\n * @param {Uint8Array} cdmData the custom data to provide to licenser\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionCreated\n * @todo In older versions of the EME spec, there was a one-to-one relationship between\n * initialization data and key sessions. That is no longer true in the latest APIs. This\n * API will need to modified (and a new \"generateRequest(keySession, initData)\" API created)\n * to come up to speed with the latest EME standard\n * @ignore\n */\n function createKeySession(initData, cdmData) {\n const initDataForKS = CommonEncryption.getPSSHForKeySystem(keySystem, initData);\n const protData = getProtData(keySystem);\n if (initDataForKS) {\n\n // Check for duplicate initData\n if (_isInitDataDuplicate(initDataForKS)) {\n return;\n }\n\n try {\n protectionModel.createKeySession(initDataForKS, protData, getSessionType(keySystem), cdmData);\n } catch (error) {\n eventBus.trigger(events.KEY_SESSION_CREATED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SESSION_CREATED_ERROR_CODE, ProtectionErrors.KEY_SESSION_CREATED_ERROR_MESSAGE + error.message)\n });\n }\n } else if (initData) {\n protectionModel.createKeySession(initData, protData, getSessionType(keySystem), cdmData);\n } else {\n eventBus.trigger(events.KEY_SESSION_CREATED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SESSION_CREATED_ERROR_CODE, ProtectionErrors.KEY_SESSION_CREATED_ERROR_MESSAGE + 'Selected key system is ' + (keySystem ? keySystem.systemString : null) + '. needkey/encrypted event contains no initData corresponding to that key system!')\n });\n }\n }\n\n /**\n * Checks if the provided init data is equal to one of the existing init data values\n * @param {any} initDataForKS\n * @return {boolean}\n * @private\n */\n function _isInitDataDuplicate(initDataForKS) {\n\n if (!initDataForKS) {\n return false;\n }\n\n try {\n const currentInitData = protectionModel.getAllInitData();\n for (let i = 0; i < currentInitData.length; i++) {\n if (protectionKeyController.initDataEquals(initDataForKS, currentInitData[i])) {\n logger.debug('DRM: Ignoring initData because we have already seen it!');\n return true;\n }\n }\n\n return false;\n } catch (e) {\n return false;\n }\n }\n\n /**\n * Loads a key session with the given session ID from persistent storage. This\n * essentially creates a new key session\n *\n * @param {string} sessionID\n * @param {string} initData\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionCreated\n * @ignore\n */\n function loadKeySession(sessionID, initData) {\n checkConfig();\n protectionModel.loadKeySession(sessionID, initData, getSessionType(keySystem));\n }\n\n /**\n * Removes the given key session from persistent storage and closes the session\n * as if {@link ProtectionController#closeKeySession}\n * was called\n *\n * @param {SessionToken} sessionToken the session\n * token\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionRemoved\n * @fires ProtectionController#KeySessionClosed\n * @ignore\n */\n function removeKeySession(sessionToken) {\n checkConfig();\n protectionModel.removeKeySession(sessionToken);\n }\n\n /**\n * Closes the key session and releases all associated decryption keys. These\n * keys will no longer be available for decrypting media\n *\n * @param {SessionToken} sessionToken the session\n * token\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#KeySessionClosed\n * @ignore\n */\n function closeKeySession(sessionToken) {\n checkConfig();\n protectionModel.closeKeySession(sessionToken);\n }\n\n /**\n * Sets a server certificate for use by the CDM when signing key messages\n * intended for a particular license server. This will fire\n * an error event if a key system has not yet been selected.\n *\n * @param {ArrayBuffer} serverCertificate a CDM-specific license server\n * certificate\n * @memberof module:ProtectionController\n * @instance\n * @fires ProtectionController#ServerCertificateUpdated\n */\n function setServerCertificate(serverCertificate) {\n checkConfig();\n protectionModel.setServerCertificate(serverCertificate);\n }\n\n /**\n * Associate this protection system with the given HTMLMediaElement. This\n * causes the system to register for needkey/encrypted events from the given\n * element and provides a destination for setting of MediaKeys\n *\n * @param {HTMLMediaElement} element the media element to which the protection\n * system should be associated\n * @memberof module:ProtectionController\n * @instance\n */\n function setMediaElement(element) {\n checkConfig();\n if (element) {\n protectionModel.setMediaElement(element);\n eventBus.on(events.NEED_KEY, onNeedKey, this);\n } else if (element === null) {\n protectionModel.setMediaElement(element);\n eventBus.off(events.NEED_KEY, onNeedKey, this);\n }\n }\n\n /**\n * Sets the session type to use when creating key sessions. Either \"temporary\" or\n * \"persistent-license\". Default is \"temporary\".\n *\n * @param {string} value the session type\n * @memberof module:ProtectionController\n * @instance\n */\n function setSessionType(value) {\n sessionType = value;\n }\n\n /**\n * Sets the robustness level for video and audio capabilities. Optional to remove Chrome warnings.\n * Possible values are SW_SECURE_CRYPTO, SW_SECURE_DECODE, HW_SECURE_CRYPTO, HW_SECURE_CRYPTO, HW_SECURE_DECODE, HW_SECURE_ALL.\n *\n * @param {string} level the robustness level\n * @memberof module:ProtectionController\n * @instance\n */\n function setRobustnessLevel(level) {\n robustnessLevel = level;\n }\n\n /**\n * Attach KeySystem-specific data to use for license acquisition with EME\n *\n * @param {Object} data an object containing property names corresponding to\n * key system name strings (e.g. \"org.w3.clearkey\") and associated values\n * being instances of {@link ProtectionData}\n * @memberof module:ProtectionController\n * @instance\n * @ignore\n */\n function setProtectionData(data) {\n protDataSet = data;\n protectionKeyController.setProtectionData(data);\n }\n\n /**\n * Stop method is called when current playback is stopped/resetted.\n *\n * @memberof module:ProtectionController\n * @instance\n */\n function stop() {\n if (protectionModel) {\n protectionModel.stop();\n }\n }\n\n\n /**\n * Destroys all protection data associated with this protection set. This includes\n * deleting all key sessions. In the case of persistent key sessions, the sessions\n * will simply be unloaded and not deleted. Additionally, if this protection set is\n * associated with a HTMLMediaElement, it will be detached from that element.\n *\n * @memberof module:ProtectionController\n * @instance\n * @ignore\n */\n function reset() {\n checkConfig();\n\n licenseRequestFilters = [];\n licenseResponseFilters = [];\n\n eventBus.off(events.INTERNAL_KEY_MESSAGE, onKeyMessage, this);\n eventBus.off(events.INTERNAL_KEY_STATUS_CHANGED, onKeyStatusChanged, this);\n\n setMediaElement(null);\n\n keySystem = undefined;\n\n if (protectionModel) {\n protectionModel.reset();\n protectionModel = null;\n }\n\n needkeyRetries.forEach(retryTimeout => clearTimeout(retryTimeout));\n needkeyRetries = [];\n\n mediaInfoArr = [];\n }\n\n ///////////////\n // Private\n ///////////////\n\n function getProtData(keySystem) {\n let protData = null;\n if (keySystem) {\n const keySystemString = keySystem.systemString;\n\n if (protDataSet) {\n protData = (keySystemString in protDataSet) ? protDataSet[keySystemString] : null;\n }\n }\n return protData;\n }\n\n function getKeySystemConfiguration(keySystem) {\n const protData = getProtData(keySystem);\n const audioCapabilities = [];\n const videoCapabilities = [];\n const audioRobustness = (protData && protData.audioRobustness && protData.audioRobustness.length > 0) ? protData.audioRobustness : robustnessLevel;\n const videoRobustness = (protData && protData.videoRobustness && protData.videoRobustness.length > 0) ? protData.videoRobustness : robustnessLevel;\n const ksSessionType = getSessionType(keySystem);\n const distinctiveIdentifier = (protData && protData.distinctiveIdentifier) ? protData.distinctiveIdentifier : 'optional';\n const persistentState = (protData && protData.persistentState) ? protData.persistentState : (ksSessionType === 'temporary') ? 'optional' : 'required';\n\n mediaInfoArr.forEach((media) => {\n if (media.type === constants.AUDIO) {\n audioCapabilities.push(new MediaCapability(media.codec, audioRobustness));\n } else if (media.type === constants.VIDEO) {\n videoCapabilities.push(new MediaCapability(media.codec, videoRobustness));\n }\n });\n\n return new KeySystemConfiguration(\n audioCapabilities, videoCapabilities, distinctiveIdentifier,\n persistentState,\n [ksSessionType]);\n }\n\n function getSessionType(keySystem) {\n const protData = getProtData(keySystem);\n const ksSessionType = (protData && protData.sessionType) ? protData.sessionType : sessionType;\n return ksSessionType;\n }\n\n function selectKeySystem(supportedKS, fromManifest) {\n\n // Reorder key systems according to priority order provided in protectionData\n supportedKS = supportedKS.sort((ksA, ksB) => {\n let indexA = (protDataSet && protDataSet[ksA.ks.systemString] && protDataSet[ksA.ks.systemString].priority >= 0) ? protDataSet[ksA.ks.systemString].priority : supportedKS.length;\n let indexB = (protDataSet && protDataSet[ksB.ks.systemString] && protDataSet[ksB.ks.systemString].priority >= 0) ? protDataSet[ksB.ks.systemString].priority : supportedKS.length;\n return indexA - indexB;\n });\n\n\n // First time, so we need to select a key system\n if (keySystem === undefined) {\n _selectInitialKeySystem(supportedKS, fromManifest);\n }\n\n // We already selected a key system. we only need to trigger a new license exchange if the init data has changed\n else if (keySystem) {\n _selectWithExistingKeySystem(supportedKS, fromManifest);\n }\n\n // We are in the process of selecting a key system, so just save the data which might be coming from additional AdaptationSets.\n else {\n pendingNeedKeyData.push(supportedKS);\n }\n }\n\n function _selectWithExistingKeySystem(supportedKS, fromManifest) {\n const self = this;\n const requestedKeySystems = [];\n\n const ksIdx = supportedKS.findIndex((entry) => {\n return entry.ks === keySystem;\n });\n\n if (ksIdx === -1 || !supportedKS[ksIdx].initData) {\n return;\n }\n\n // we only need to call this if the init data has changed\n const initDataForKs = CommonEncryption.getPSSHForKeySystem(keySystem, supportedKS[ksIdx].initData);\n if (_isInitDataDuplicate(initDataForKs)) {\n return;\n }\n\n requestedKeySystems.push({\n ks: supportedKS[ksIdx].ks,\n configs: [getKeySystemConfiguration(keySystem)]\n });\n\n // Ensure that we would be granted key system access using the key\n // system and codec information\n const onKeySystemAccessComplete = function (event) {\n eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n if (event.error) {\n if (!fromManifest) {\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, { error: new DashJSError(ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE, ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE + event.error) });\n }\n } else {\n logger.info('DRM: KeySystem Access Granted');\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, { data: event.data });\n const protData = getProtData(keySystem);\n if (protectionKeyController.isClearKey(keySystem)) {\n // For Clearkey: if parameters for generating init data was provided by the user, use them for generating\n // initData and overwrite possible initData indicated in encrypted event (EME)\n if (protData && protData.hasOwnProperty('clearkeys')) {\n const initData = { kids: Object.keys(protData.clearkeys) };\n supportedKS[ksIdx].initData = new TextEncoder().encode(JSON.stringify(initData));\n }\n }\n if (supportedKS[ksIdx].sessionId) {\n // Load MediaKeySession with sessionId\n loadKeySession(supportedKS[ksIdx].sessionId, supportedKS[ksIdx].initData);\n } else if (supportedKS[ksIdx].initData) {\n // Create new MediaKeySession with initData\n createKeySession(supportedKS[ksIdx].initData, supportedKS[ksIdx].cdmData);\n }\n }\n };\n\n eventBus.on(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n protectionModel.requestKeySystemAccess(requestedKeySystems);\n }\n\n function _selectInitialKeySystem(supportedKS, fromManifest) {\n const self = this;\n const requestedKeySystems = [];\n let ksIdx;\n\n // First time through, so we need to select a key system\n keySystem = null;\n pendingNeedKeyData.push(supportedKS);\n\n // Add all key systems to our request list since we have yet to select a key system\n for (let i = 0; i < supportedKS.length; i++) {\n requestedKeySystems.push({\n ks: supportedKS[i].ks,\n configs: [getKeySystemConfiguration(supportedKS[i].ks)]\n });\n }\n\n let keySystemAccess;\n const onKeySystemAccessComplete = function (event) {\n eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n if (event.error) {\n keySystem = undefined;\n eventBus.off(events.INTERNAL_KEY_SYSTEM_SELECTED, onKeySystemSelected, self);\n if (!fromManifest) {\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE, ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE + event.error)\n });\n }\n } else {\n keySystemAccess = event.data;\n logger.info('DRM: KeySystem Access Granted (' + keySystemAccess.keySystem.systemString + ')! Selecting key system...');\n protectionModel.selectKeySystem(keySystemAccess);\n }\n };\n var onKeySystemSelected = function (event) {\n eventBus.off(events.INTERNAL_KEY_SYSTEM_SELECTED, onKeySystemSelected, self);\n eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n if (!event.error) {\n if (!protectionModel) {\n return;\n }\n keySystem = protectionModel.getKeySystem();\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, { data: keySystemAccess });\n // Set server certificate from protData\n const protData = getProtData(keySystem);\n if (protData && protData.serverCertificate && protData.serverCertificate.length > 0) {\n protectionModel.setServerCertificate(BASE64.decodeArray(protData.serverCertificate).buffer);\n }\n\n // Create key session for the remaining AdaptationSets which have been added to pendingNeedKeyData\n for (let i = 0; i < pendingNeedKeyData.length; i++) {\n for (ksIdx = 0; ksIdx < pendingNeedKeyData[i].length; ksIdx++) {\n if (keySystem === pendingNeedKeyData[i][ksIdx].ks) {\n if (protectionKeyController.isClearKey(keySystem)) {\n // For Clearkey: if parameters for generating init data was provided by the user, use them for generating\n // initData and overwrite possible initData indicated in encrypted event (EME)\n if (protData && protData.hasOwnProperty('clearkeys')) {\n const initData = { kids: Object.keys(protData.clearkeys) };\n pendingNeedKeyData[i][ksIdx].initData = new TextEncoder().encode(JSON.stringify(initData));\n }\n }\n if (pendingNeedKeyData[i][ksIdx].sessionId) {\n // Load MediaKeySession with sessionId\n loadKeySession(pendingNeedKeyData[i][ksIdx].sessionId, pendingNeedKeyData[i][ksIdx].initData);\n } else if (pendingNeedKeyData[i][ksIdx].initData !== null) {\n // Create new MediaKeySession with initData\n createKeySession(pendingNeedKeyData[i][ksIdx].initData, pendingNeedKeyData[i][ksIdx].cdmData);\n }\n break;\n }\n }\n }\n } else {\n keySystem = undefined;\n if (!fromManifest) {\n eventBus.trigger(events.KEY_SYSTEM_SELECTED, {\n data: null,\n error: new DashJSError(ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE, ProtectionErrors.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE + 'Error selecting key system! -- ' + event.error)\n });\n }\n }\n };\n\n eventBus.on(events.INTERNAL_KEY_SYSTEM_SELECTED, onKeySystemSelected, self);\n eventBus.on(events.KEY_SYSTEM_ACCESS_COMPLETE, onKeySystemAccessComplete, self);\n protectionModel.requestKeySystemAccess(requestedKeySystems);\n }\n\n function sendLicenseRequestCompleteEvent(data, error) {\n eventBus.trigger(events.LICENSE_REQUEST_COMPLETE, { data: data, error: error });\n }\n\n function onKeyStatusChanged(e) {\n if (e.error) {\n eventBus.trigger(events.KEY_STATUSES_CHANGED, { data: null, error: e.error });\n } else {\n logger.debug('DRM: key status = ' + e.status);\n }\n }\n\n function onKeyMessage(e) {\n logger.debug('DRM: onKeyMessage');\n\n // Dispatch event to applications indicating we received a key message\n const keyMessage = e.data;\n eventBus.trigger(events.KEY_MESSAGE, { data: keyMessage });\n const messageType = (keyMessage.messageType) ? keyMessage.messageType : 'license-request';\n const message = keyMessage.message;\n const sessionToken = keyMessage.sessionToken;\n const protData = getProtData(keySystem);\n const keySystemString = keySystem ? keySystem.systemString : null;\n const licenseServerData = protectionKeyController.getLicenseServer(keySystem, protData, messageType);\n const eventData = { sessionToken: sessionToken, messageType: messageType };\n\n // Ensure message from CDM is not empty\n if (!message || message.byteLength === 0) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_CODE, ProtectionErrors.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_MESSAGE));\n return;\n }\n\n // Message not destined for license server\n if (!licenseServerData) {\n logger.debug('DRM: License server request not required for this message (type = ' + e.data.messageType + '). Session ID = ' + sessionToken.getSessionID());\n sendLicenseRequestCompleteEvent(eventData);\n return;\n }\n\n // Perform any special handling for ClearKey\n if (protectionKeyController.isClearKey(keySystem)) {\n const clearkeys = protectionKeyController.processClearKeyLicenseRequest(keySystem, protData, message);\n if (clearkeys) {\n logger.debug('DRM: ClearKey license request handled by application!');\n sendLicenseRequestCompleteEvent(eventData);\n protectionModel.updateKeySession(sessionToken, clearkeys);\n return;\n }\n }\n\n // All remaining key system scenarios require a request to a remote license server\n // Determine license server URL\n let url = null;\n if (protData && protData.serverURL) {\n const serverURL = protData.serverURL;\n if (typeof serverURL === 'string' && serverURL !== '') {\n url = serverURL;\n } else if (typeof serverURL === 'object' && serverURL.hasOwnProperty(messageType)) {\n url = serverURL[messageType];\n }\n } else if (protData && protData.laURL && protData.laURL !== '') {\n // TODO: Deprecated!\n url = protData.laURL;\n } else {\n // For clearkey use the url defined in the manifest\n if (protectionKeyController.isClearKey(keySystem)) {\n url = keySystem.getLicenseServerUrlFromMediaInfo(mediaInfoArr);\n } else {\n const psshData = CommonEncryption.getPSSHData(sessionToken.initData);\n url = keySystem.getLicenseServerURLFromInitData(psshData);\n if (!url) {\n url = e.data.laURL;\n }\n }\n }\n // Possibly update or override the URL based on the message\n url = licenseServerData.getServerURLFromMessage(url, message, messageType);\n\n // Ensure valid license server URL\n if (!url) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_CODE, ProtectionErrors.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_MESSAGE));\n return;\n }\n\n // Set optional XMLHttpRequest headers from protection data and message\n const reqHeaders = {};\n let withCredentials = false;\n const updateHeaders = function (headers) {\n if (headers) {\n for (const key in headers) {\n if ('authorization' === key.toLowerCase()) {\n withCredentials = true;\n }\n reqHeaders[key] = headers[key];\n }\n }\n };\n if (protData) {\n updateHeaders(protData.httpRequestHeaders);\n }\n updateHeaders(keySystem.getRequestHeadersFromMessage(message));\n\n // Overwrite withCredentials property from protData if present\n if (protData && typeof protData.withCredentials == 'boolean') {\n withCredentials = protData.withCredentials;\n }\n\n const reportError = function (xhr, eventData, keySystemString, messageType) {\n const errorMsg = ((xhr.response) ? licenseServerData.getErrorResponse(xhr.response, keySystemString, messageType) : 'NONE');\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,\n ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE + keySystemString + ' update, XHR complete. status is \"' +\n xhr.statusText + '\" (' + xhr.status + '), readyState is ' + xhr.readyState + '. Response is ' + errorMsg));\n };\n\n const onLoad = function (xhr) {\n if (!protectionModel) {\n return;\n }\n\n if (xhr.status === 200) {\n let licenseResponse = new LicenseResponse(xhr.responseURL, Utils.parseHttpHeaders(xhr.getAllResponseHeaders ? xhr.getAllResponseHeaders() : null), xhr.response);\n applyFilters(licenseResponseFilters, licenseResponse).then(() => {\n const licenseMessage = licenseServerData.getLicenseMessage(licenseResponse.data, keySystemString, messageType);\n if (licenseMessage !== null) {\n sendLicenseRequestCompleteEvent(eventData);\n protectionModel.updateKeySession(sessionToken, licenseMessage);\n } else {\n reportError(xhr, eventData, keySystemString, messageType);\n }\n });\n } else {\n reportError(xhr, eventData, keySystemString, messageType);\n }\n };\n\n const onAbort = function (xhr) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,\n ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE + keySystemString + ' update, XHR aborted. status is \"' +\n xhr.statusText + '\" (' + xhr.status + '), readyState is ' + xhr.readyState));\n };\n\n const onError = function (xhr) {\n sendLicenseRequestCompleteEvent(eventData, new DashJSError(ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,\n ProtectionErrors.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE + keySystemString + ' update, XHR error. status is \"' +\n xhr.statusText + '\" (' + xhr.status + '), readyState is ' + xhr.readyState));\n };\n\n const reqPayload = keySystem.getLicenseRequestFromMessage(message);\n const reqMethod = licenseServerData.getHTTPMethod(messageType);\n const responseType = licenseServerData.getResponseType(keySystemString, messageType);\n const timeout = protData && !isNaN(protData.httpTimeout) ? protData.httpTimeout : LICENSE_SERVER_REQUEST_DEFAULT_TIMEOUT;\n const sessionId = sessionToken.getSessionID() || null;\n\n let licenseRequest = new LicenseRequest(url, reqMethod, responseType, reqHeaders, withCredentials, messageType, sessionId, reqPayload);\n applyFilters(licenseRequestFilters, licenseRequest).then(() => {\n doLicenseRequest(licenseRequest, LICENSE_SERVER_REQUEST_RETRIES, timeout, onLoad, onAbort, onError);\n });\n }\n\n // Implement license requests with a retry mechanism to avoid temporary network issues to affect playback experience\n function doLicenseRequest(request, retriesCount, timeout, onLoad, onAbort, onError) {\n const xhr = new XMLHttpRequest();\n\n const cmcdParams = cmcdModel.getQueryParameter({\n url: request.url,\n type: HTTPRequest.LICENSE\n });\n\n if (cmcdParams) {\n request.url = Utils.addAditionalQueryParameterToUrl(request.url, [cmcdParams]);\n }\n\n xhr.open(request.method, request.url, true);\n xhr.responseType = request.responseType;\n xhr.withCredentials = request.withCredentials;\n if (timeout > 0) {\n xhr.timeout = timeout;\n }\n for (const key in request.headers) {\n xhr.setRequestHeader(key, request.headers[key]);\n }\n\n const retryRequest = function () {\n // fail silently and retry\n retriesCount--;\n setTimeout(function () {\n doLicenseRequest(request, retriesCount, timeout, onLoad, onAbort, onError);\n }, LICENSE_SERVER_REQUEST_RETRY_INTERVAL);\n };\n\n xhr.onload = function () {\n if (this.status === 200 || retriesCount <= 0) {\n onLoad(this);\n } else {\n logger.warn('License request failed (' + this.status + '). Retrying it... Pending retries: ' + retriesCount);\n retryRequest();\n }\n };\n\n xhr.ontimeout = xhr.onerror = function () {\n if (retriesCount <= 0) {\n onError(this);\n } else {\n logger.warn('License request network request failed . Retrying it... Pending retries: ' + retriesCount);\n retryRequest();\n }\n };\n\n xhr.onabort = function () {\n onAbort(this);\n };\n\n // deprecated, to be removed\n eventBus.trigger(events.LICENSE_REQUEST_SENDING, {\n url: request.url,\n headers: request.headers,\n payload: request.data,\n sessionId: request.sessionId\n });\n\n xhr.send(request.data);\n }\n\n function onNeedKey(event, retry) {\n logger.debug('DRM: onNeedKey');\n // Ignore non-cenc initData\n if (event.key.initDataType !== 'cenc') {\n logger.warn('DRM: Only \\'cenc\\' initData is supported! Ignoring initData of type: ' + event.key.initDataType);\n return;\n }\n\n if (mediaInfoArr.length === 0) {\n logger.warn('DRM: onNeedKey called before initializeForMedia, wait until initialized');\n retry = typeof retry === 'undefined' ? 1 : retry + 1;\n if (retry < NEEDKEY_BEFORE_INITIALIZE_RETRIES) {\n needkeyRetries.push(setTimeout(() => {\n onNeedKey(event, retry);\n }, NEEDKEY_BEFORE_INITIALIZE_TIMEOUT));\n return;\n }\n\n }\n\n // Some browsers return initData as Uint8Array (IE), some as ArrayBuffer (Chrome).\n // Convert to ArrayBuffer\n let abInitData = event.key.initData;\n if (ArrayBuffer.isView(abInitData)) {\n abInitData = abInitData.buffer;\n }\n\n // If key system has already been selected and initData already seen, then do nothing\n if (keySystem) {\n const initDataForKS = CommonEncryption.getPSSHForKeySystem(keySystem, abInitData);\n if (initDataForKS) {\n\n // Check for duplicate initData\n if (_isInitDataDuplicate(initDataForKS)) {\n return;\n }\n }\n }\n\n logger.debug('DRM: initData:', String.fromCharCode.apply(null, new Uint8Array(abInitData)));\n\n const supportedKS = protectionKeyController.getSupportedKeySystems(abInitData, protDataSet);\n if (supportedKS.length === 0) {\n logger.debug('DRM: Received needkey event with initData, but we don\\'t support any of the key systems!');\n return;\n }\n\n selectKeySystem(supportedKS, false);\n }\n\n function getKeySystems() {\n return protectionKeyController ? protectionKeyController.getKeySystems() : [];\n }\n\n function setKeySystems(keySystems) {\n if (protectionKeyController) {\n protectionKeyController.setKeySystems(keySystems);\n }\n }\n\n function setLicenseRequestFilters (filters) {\n licenseRequestFilters = filters;\n }\n\n function setLicenseResponseFilters (filters) {\n licenseResponseFilters = filters;\n }\n\n function applyFilters (filters, param) {\n if (!filters) return Promise.resolve();\n return filters.reduce((prev, next) => {\n return prev.then(() => {\n return next(param);\n });\n }, Promise.resolve());\n }\n\n instance = {\n initializeForMedia: initializeForMedia,\n clearMediaInfoArrayByStreamId: clearMediaInfoArrayByStreamId,\n createKeySession: createKeySession,\n loadKeySession: loadKeySession,\n removeKeySession: removeKeySession,\n closeKeySession: closeKeySession,\n setServerCertificate: setServerCertificate,\n setMediaElement: setMediaElement,\n setSessionType: setSessionType,\n setRobustnessLevel: setRobustnessLevel,\n setProtectionData: setProtectionData,\n getSupportedKeySystemsFromContentProtection: getSupportedKeySystemsFromContentProtection,\n getKeySystems: getKeySystems,\n setKeySystems: setKeySystems,\n setLicenseRequestFilters: setLicenseRequestFilters,\n setLicenseResponseFilters: setLicenseResponseFilters,\n stop: stop,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nProtectionController.__dashjs_factory_name = 'ProtectionController';\nexport default dashjs.FactoryMaker.getClassFactory(ProtectionController); /* jshint ignore:line */\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport CommonEncryption from './../CommonEncryption';\nimport KeySystemClearKey from './../drm/KeySystemClearKey';\nimport KeySystemW3CClearKey from './../drm/KeySystemW3CClearKey';\nimport KeySystemWidevine from './../drm/KeySystemWidevine';\nimport KeySystemPlayReady from './../drm/KeySystemPlayReady';\nimport DRMToday from './../servers/DRMToday';\nimport PlayReady from './../servers/PlayReady';\nimport Widevine from './../servers/Widevine';\nimport ClearKey from './../servers/ClearKey';\nimport ProtectionConstants from '../../constants/ProtectionConstants';\n\n/**\n * @module ProtectionKeyController\n * @ignore\n * @description Media protection key system functionality that can be modified/overridden by applications\n */\nfunction ProtectionKeyController() {\n\n let context = this.context;\n\n let instance,\n debug,\n logger,\n keySystems,\n BASE64,\n clearkeyKeySystem,\n clearkeyW3CKeySystem;\n\n function setConfig(config) {\n if (!config) return;\n\n if (config.debug) {\n debug = config.debug;\n logger = debug.getLogger(instance);\n }\n\n if (config.BASE64) {\n BASE64 = config.BASE64;\n }\n }\n\n function initialize() {\n keySystems = [];\n\n let keySystem;\n\n // PlayReady\n keySystem = KeySystemPlayReady(context).getInstance({BASE64: BASE64});\n keySystems.push(keySystem);\n\n // Widevine\n keySystem = KeySystemWidevine(context).getInstance({BASE64: BASE64});\n keySystems.push(keySystem);\n\n // ClearKey\n keySystem = KeySystemClearKey(context).getInstance({BASE64: BASE64});\n keySystems.push(keySystem);\n clearkeyKeySystem = keySystem;\n\n // W3C ClearKey\n keySystem = KeySystemW3CClearKey(context).getInstance({BASE64: BASE64, debug: debug});\n keySystems.push(keySystem);\n clearkeyW3CKeySystem = keySystem;\n }\n\n /**\n * Returns a prioritized list of key systems supported\n * by this player (not necessarily those supported by the\n * user agent)\n *\n * @returns {Array.} a prioritized\n * list of key systems\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function getKeySystems() {\n return keySystems;\n }\n\n /**\n * Sets the prioritized list of key systems to be supported\n * by this player.\n *\n * @param {Array.} newKeySystems the new prioritized\n * list of key systems\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function setKeySystems(newKeySystems) {\n keySystems = newKeySystems;\n }\n\n /**\n * Returns the key system associated with the given key system string\n * name (i.e. 'org.w3.clearkey')\n *\n * @param {string} systemString the system string\n * @returns {KeySystem|null} the key system\n * or null if no supported key system is associated with the given key\n * system string\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function getKeySystemBySystemString(systemString) {\n for (let i = 0; i < keySystems.length; i++) {\n if (keySystems[i].systemString === systemString) {\n return keySystems[i];\n }\n }\n return null;\n }\n\n /**\n * Determines whether the given key system is ClearKey. This is\n * necessary because the EME spec defines ClearKey and its method\n * for providing keys to the key session; and this method has changed\n * between the various API versions. Our EME-specific ProtectionModels\n * must know if the system is ClearKey so that it can format the keys\n * according to the particular spec version.\n *\n * @param {Object} keySystem the key\n * @returns {boolean} true if this is the ClearKey key system, false\n * otherwise\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function isClearKey(keySystem) {\n return (keySystem === clearkeyKeySystem || keySystem === clearkeyW3CKeySystem);\n }\n\n /**\n * Check equality of initData array buffers.\n *\n * @param {ArrayBuffer} initData1 - first initData\n * @param {ArrayBuffer} initData2 - second initData\n * @returns {boolean} true if the initData arrays are equal in size and\n * contents, false otherwise\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function initDataEquals(initData1, initData2) {\n if (initData1.byteLength === initData2.byteLength) {\n let data1 = new Uint8Array(initData1);\n let data2 = new Uint8Array(initData2);\n\n for (let j = 0; j < data1.length; j++) {\n if (data1[j] !== data2[j]) {\n return false;\n }\n }\n return true;\n }\n return false;\n }\n\n /**\n * Returns a set of supported key systems and CENC initialization data\n * from the given array of ContentProtection elements. Only\n * key systems that are supported by this player will be returned.\n * Key systems are returned in priority order (highest first).\n *\n * @param {Array.} cps - array of content protection elements parsed\n * from the manifest\n * @returns {Array.} array of objects indicating which supported key\n * systems were found. Empty array is returned if no\n * supported key systems were found\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function getSupportedKeySystemsFromContentProtection(cps) {\n let cp, ks, ksIdx, cpIdx;\n let supportedKS = [];\n\n if (cps) {\n const cencContentProtection = CommonEncryption.findCencContentProtection(cps);\n for (ksIdx = 0; ksIdx < keySystems.length; ++ksIdx) {\n ks = keySystems[ksIdx];\n for (cpIdx = 0; cpIdx < cps.length; ++cpIdx) {\n cp = cps[cpIdx];\n if (cp.schemeIdUri.toLowerCase() === ks.schemeIdURI) {\n // Look for DRM-specific ContentProtection\n let initData = ks.getInitData(cp, cencContentProtection);\n\n supportedKS.push({\n ks: keySystems[ksIdx],\n initData: initData,\n cdmData: ks.getCDMData(),\n sessionId: ks.getSessionId(cp)\n });\n }\n }\n }\n }\n return supportedKS;\n }\n\n /**\n * Returns key systems supported by this player for the given PSSH\n * initializationData. Only key systems supported by this player\n * that have protection data present will be returned. Key systems are returned in priority order\n * (highest priority first)\n *\n * @param {ArrayBuffer} initData Concatenated PSSH data for all DRMs\n * supported by the content\n * @param {ProtectionData} protDataSet user specified protection data - license server url etc\n * supported by the content\n * @returns {Array.} array of objects indicating which supported key\n * systems were found. Empty array is returned if no\n * supported key systems were found\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function getSupportedKeySystems(initData, protDataSet) {\n let supportedKS = [];\n let pssh = CommonEncryption.parsePSSHList(initData);\n let ks, keySystemString, shouldNotFilterOutKeySystem;\n\n for (let ksIdx = 0; ksIdx < keySystems.length; ++ksIdx) {\n ks = keySystems[ksIdx];\n keySystemString = ks.systemString;\n shouldNotFilterOutKeySystem = (protDataSet) ? keySystemString in protDataSet : true;\n\n if (ks.uuid in pssh && shouldNotFilterOutKeySystem) {\n supportedKS.push({\n ks: ks,\n initData: pssh[ks.uuid],\n cdmData: ks.getCDMData(),\n sessionId: ks.getSessionId()\n });\n }\n }\n return supportedKS;\n }\n\n /**\n * Returns the license server implementation data that should be used for this request.\n *\n * @param {KeySystem} keySystem the key system\n * associated with this license request\n * @param {ProtectionData} protData protection data to use for the\n * request\n * @param {string} [messageType=\"license-request\"] the message type associated with this\n * request. Supported message types can be found\n * {@link https://w3c.github.io/encrypted-media/#idl-def-MediaKeyMessageType|here}.\n * @returns {LicenseServer|null} the license server\n * implementation that should be used for this request or null if the player should not\n * pass messages of the given type to a license server\n * @memberof module:ProtectionKeyController\n * @instance\n *\n */\n function getLicenseServer(keySystem, protData, messageType) {\n\n // Our default server implementations do not do anything with \"license-release\" or\n // \"individualization-request\" messages, so we just send a success event\n if (messageType === 'license-release' || messageType === 'individualization-request') {\n return null;\n }\n\n let licenseServerData = null;\n if (protData && protData.hasOwnProperty('drmtoday')) {\n licenseServerData = DRMToday(context).getInstance({BASE64: BASE64});\n } else if (keySystem.systemString === ProtectionConstants.WIDEVINE_KEYSTEM_STRING) {\n licenseServerData = Widevine(context).getInstance();\n } else if (keySystem.systemString === ProtectionConstants.PLAYREADY_KEYSTEM_STRING) {\n licenseServerData = PlayReady(context).getInstance();\n } else if (keySystem.systemString === ProtectionConstants.CLEARKEY_KEYSTEM_STRING) {\n licenseServerData = ClearKey(context).getInstance();\n }\n\n return licenseServerData;\n }\n\n /**\n * Allows application-specific retrieval of ClearKey keys.\n *\n * @param {KeySystem} clearkeyKeySystem They exact ClearKey System to be used\n * @param {ProtectionData} protData protection data to use for the\n * request\n * @param {ArrayBuffer} message the key message from the CDM\n * @return {ClearKeyKeySet|null} the clear keys associated with\n * the request or null if no keys can be returned by this function\n * @memberof module:ProtectionKeyController\n * @instance\n */\n function processClearKeyLicenseRequest(clearkeyKeySystem, protData, message) {\n try {\n return clearkeyKeySystem.getClearKeysFromProtectionData(protData, message);\n } catch (error) {\n logger.error('Failed to retrieve clearkeys from ProtectionData');\n return null;\n }\n }\n\n function setProtectionData(protectionDataSet) {\n var getProtectionData = function (keySystemString) {\n var protData = null;\n if (protectionDataSet) {\n protData = (keySystemString in protectionDataSet) ? protectionDataSet[keySystemString] : null;\n }\n return protData;\n };\n\n for (var i = 0; i < keySystems.length; i++) {\n var keySystem = keySystems[i];\n if (keySystem.hasOwnProperty('init')) {\n keySystem.init(getProtectionData(keySystem.systemString));\n }\n }\n }\n\n instance = {\n initialize: initialize,\n setProtectionData: setProtectionData,\n isClearKey: isClearKey,\n initDataEquals: initDataEquals,\n getKeySystems: getKeySystems,\n setKeySystems: setKeySystems,\n getKeySystemBySystemString: getKeySystemBySystemString,\n getSupportedKeySystemsFromContentProtection: getSupportedKeySystemsFromContentProtection,\n getSupportedKeySystems: getSupportedKeySystems,\n getLicenseServer: getLicenseServer,\n processClearKeyLicenseRequest: processClearKeyLicenseRequest,\n setConfig: setConfig\n };\n\n return instance;\n}\n\nProtectionKeyController.__dashjs_factory_name = 'ProtectionKeyController';\nexport default dashjs.FactoryMaker.getSingletonFactory(ProtectionKeyController); /* jshint ignore:line */\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport KeyPair from '../vo/KeyPair';\nimport ClearKeyKeySet from '../vo/ClearKeyKeySet';\nimport CommonEncryption from '../CommonEncryption';\nimport ProtectionConstants from '../../constants/ProtectionConstants';\n\nconst uuid = 'e2719d58-a985-b3c9-781a-b030af78d30e';\nconst systemString = ProtectionConstants.CLEARKEY_KEYSTEM_STRING;\nconst schemeIdURI = 'urn:uuid:' + uuid;\n\nfunction KeySystemClearKey(config) {\n\n config = config || {};\n let instance;\n const BASE64 = config.BASE64;\n const LICENSE_SERVER_MANIFEST_CONFIGURATIONS = {\n attributes: ['Laurl', 'laurl'],\n prefixes: ['clearkey', 'dashif']\n };\n\n /**\n * Returns desired clearkeys (as specified in the CDM message) from protection data\n *\n * @param {ProtectionData} protectionData the protection data\n * @param {ArrayBuffer} message the ClearKey CDM message\n * @returns {ClearKeyKeySet} the key set or null if none found\n * @throws {Error} if a keyID specified in the CDM message was not found in the\n * protection data\n * @memberof KeySystemClearKey\n */\n function getClearKeysFromProtectionData(protectionData, message) {\n let clearkeySet = null;\n if (protectionData) {\n // ClearKey is the only system that does not require a license server URL, so we\n // handle it here when keys are specified in protection data\n const jsonMsg = JSON.parse(String.fromCharCode.apply(null, new Uint8Array(message)));\n const keyPairs = [];\n for (let i = 0; i < jsonMsg.kids.length; i++) {\n const clearkeyID = jsonMsg.kids[i];\n const clearkey = (protectionData.clearkeys && protectionData.clearkeys.hasOwnProperty(clearkeyID)) ? protectionData.clearkeys[clearkeyID] : null;\n if (!clearkey) {\n throw new Error('DRM: ClearKey keyID (' + clearkeyID + ') is not known!');\n }\n // KeyIDs from CDM are not base64 padded. Keys may or may not be padded\n keyPairs.push(new KeyPair(clearkeyID, clearkey));\n }\n clearkeySet = new ClearKeyKeySet(keyPairs);\n }\n return clearkeySet;\n }\n\n function getInitData(cp, cencContentProtection) {\n try {\n let initData = CommonEncryption.parseInitDataFromContentProtection(cp, BASE64);\n\n if (!initData && cencContentProtection) {\n const cencDefaultKid = cencDefaultKidToBase64Representation(cencContentProtection['cenc:default_KID']);\n const data = {kids: [cencDefaultKid]};\n initData = new TextEncoder().encode(JSON.stringify(data));\n }\n\n return initData;\n } catch (e) {\n return null;\n }\n }\n\n function cencDefaultKidToBase64Representation(cencDefaultKid) {\n try {\n let kid = cencDefaultKid.replace(/-/g, '');\n kid = btoa(kid.match(/\\w{2}/g).map((a) => {\n return String.fromCharCode(parseInt(a, 16));\n }).join(''));\n return kid.replace(/=/g, '');\n } catch (e) {\n return null;\n }\n }\n\n function getRequestHeadersFromMessage(/*message*/) {\n // Set content type to application/json by default\n return {\n 'Content-Type': 'application/json'\n };\n }\n\n function getLicenseRequestFromMessage(message) {\n return JSON.parse(String.fromCharCode.apply(null, new Uint8Array(message)));\n }\n\n function getLicenseServerURLFromInitData(/*initData*/) {\n return null;\n }\n\n function getLicenseServerUrlFromMediaInfo(mediaInfo) {\n try {\n if (!mediaInfo || mediaInfo.length === 0) {\n return null;\n }\n let i = 0;\n let licenseServer = null;\n while (i < mediaInfo.length && !licenseServer) {\n const info = mediaInfo[i];\n if (info && info.contentProtection && info.contentProtection.length > 0) {\n const clearkeyProtData = info.contentProtection.filter((cp) => {\n return cp.schemeIdUri && cp.schemeIdUri === schemeIdURI;\n });\n if (clearkeyProtData && clearkeyProtData.length > 0) {\n let j = 0;\n while (j < clearkeyProtData.length && !licenseServer) {\n const ckData = clearkeyProtData[j];\n let k = 0;\n while (k < LICENSE_SERVER_MANIFEST_CONFIGURATIONS.attributes.length && !licenseServer) {\n let l = 0;\n const attribute = LICENSE_SERVER_MANIFEST_CONFIGURATIONS.attributes[k];\n while (l < LICENSE_SERVER_MANIFEST_CONFIGURATIONS.prefixes.length && !licenseServer) {\n const prefix = LICENSE_SERVER_MANIFEST_CONFIGURATIONS.prefixes[l];\n if (ckData[attribute] && ckData[attribute].__prefix && ckData[attribute].__prefix === prefix && ckData[attribute].__text) {\n licenseServer = ckData[attribute].__text;\n }\n l += 1;\n }\n k += 1;\n }\n j += 1;\n }\n }\n }\n i += 1;\n }\n return licenseServer;\n } catch\n (e) {\n return null;\n }\n }\n\n function getCDMData() {\n return null;\n }\n\n function getSessionId(/*cp*/) {\n return null;\n }\n\n instance = {\n uuid: uuid,\n schemeIdURI: schemeIdURI,\n systemString: systemString,\n getInitData: getInitData,\n getRequestHeadersFromMessage: getRequestHeadersFromMessage,\n getLicenseRequestFromMessage: getLicenseRequestFromMessage,\n getLicenseServerURLFromInitData: getLicenseServerURLFromInitData,\n getCDMData: getCDMData,\n getSessionId: getSessionId,\n getLicenseServerUrlFromMediaInfo,\n getClearKeysFromProtectionData: getClearKeysFromProtectionData\n };\n\n return instance;\n}\n\nKeySystemClearKey.__dashjs_factory_name = 'KeySystemClearKey';\nexport default dashjs.FactoryMaker.getSingletonFactory(KeySystemClearKey); /* jshint ignore:line */\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Microsoft PlayReady DRM\n *\n * @class\n * @implements KeySystem\n */\nimport CommonEncryption from '../CommonEncryption';\nimport ProtectionConstants from '../../constants/ProtectionConstants';\n\nconst uuid = '9a04f079-9840-4286-ab92-e65be0885f95';\nconst systemString = ProtectionConstants.PLAYREADY_KEYSTEM_STRING;\nconst schemeIdURI = 'urn:uuid:' + uuid;\nconst PRCDMData = '%CUSTOMDATA% \n if (xmlDoc.getElementsByTagName('LA_URL')[0]) {\n const laurl = xmlDoc.getElementsByTagName('LA_URL')[0].childNodes[0].nodeValue;\n if (laurl) {\n return laurl;\n }\n }\n\n // Optionally, try \n if (xmlDoc.getElementsByTagName('LUI_URL')[0]) {\n const luiurl = xmlDoc.getElementsByTagName('LUI_URL')[0].childNodes[0].nodeValue;\n if (luiurl) {\n return luiurl;\n }\n }\n }\n }\n\n return null;\n }\n\n function getInitData(cpData) {\n // * desc@ getInitData\n // * generate PSSH data from PROHeader defined in MPD file\n // * PSSH format:\n // * size (4)\n // * box type(PSSH) (8)\n // * Protection SystemID (16)\n // * protection system data size (4) - length of decoded PROHeader\n // * decoded PROHeader data from MPD file\n const PSSHBoxType = new Uint8Array([0x70, 0x73, 0x73, 0x68, 0x00, 0x00, 0x00, 0x00]); //'PSSH' 8 bytes\n const playreadySystemID = new Uint8Array([0x9a, 0x04, 0xf0, 0x79, 0x98, 0x40, 0x42, 0x86, 0xab, 0x92, 0xe6, 0x5b, 0xe0, 0x88, 0x5f, 0x95]);\n\n let byteCursor = 0;\n let uint8arraydecodedPROHeader = null;\n\n let PROSize,\n PSSHSize,\n PSSHBoxBuffer,\n PSSHBox,\n PSSHData;\n\n checkConfig();\n if (!cpData) {\n return null;\n }\n // Handle common encryption PSSH\n if ('pssh' in cpData) {\n return CommonEncryption.parseInitDataFromContentProtection(cpData, BASE64);\n }\n // Handle native MS PlayReady ContentProtection elements\n if ('pro' in cpData) {\n uint8arraydecodedPROHeader = BASE64.decodeArray(cpData.pro.__text);\n }\n else if ('prheader' in cpData) {\n uint8arraydecodedPROHeader = BASE64.decodeArray(cpData.prheader.__text);\n }\n else {\n return null;\n }\n\n PROSize = uint8arraydecodedPROHeader.length;\n PSSHSize = 0x4 + PSSHBoxType.length + playreadySystemID.length + 0x4 + PROSize;\n\n PSSHBoxBuffer = new ArrayBuffer(PSSHSize);\n\n PSSHBox = new Uint8Array(PSSHBoxBuffer);\n PSSHData = new DataView(PSSHBoxBuffer);\n\n PSSHData.setUint32(byteCursor, PSSHSize);\n byteCursor += 0x4;\n\n PSSHBox.set(PSSHBoxType, byteCursor);\n byteCursor += PSSHBoxType.length;\n\n PSSHBox.set(playreadySystemID, byteCursor);\n byteCursor += playreadySystemID.length;\n\n PSSHData.setUint32(byteCursor, PROSize);\n byteCursor += 0x4;\n\n PSSHBox.set(uint8arraydecodedPROHeader, byteCursor);\n byteCursor += PROSize;\n\n return PSSHBox.buffer;\n }\n\n /**\n * It seems that some PlayReady implementations return their XML-based CDM\n * messages using UTF16, while others return them as UTF8. Use this function\n * to modify the message format to expect when parsing CDM messages.\n *\n * @param {string} format the expected message format. Either \"utf-8\" or \"utf-16\".\n * @throws {Error} Specified message format is not one of \"utf8\" or \"utf16\"\n */\n function setPlayReadyMessageFormat(format) {\n if (format !== 'utf-8' && format !== 'utf-16') {\n throw new Error('Specified message format is not one of \"utf-8\" or \"utf-16\"');\n }\n messageFormat = format;\n }\n\n /**\n * Initialize the Key system with protection data\n * @param {Object} protectionData the protection data\n */\n function init(protectionData) {\n if (protectionData) {\n protData = protectionData;\n }\n }\n\n\n /**\n * Get Playready Custom data\n */\n function getCDMData() {\n let customData,\n cdmData,\n cdmDataBytes,\n i;\n\n checkConfig();\n if (protData && protData.cdmData) {\n // Convert custom data into multibyte string\n customData = [];\n for (i = 0; i < protData.cdmData.length; ++i) {\n customData.push(protData.cdmData.charCodeAt(i));\n customData.push(0);\n }\n customData = String.fromCharCode.apply(null, customData);\n\n // Encode in Base 64 the custom data string\n customData = BASE64.encode(customData);\n\n // Initialize CDM data with Base 64 encoded custom data\n // (see https://msdn.microsoft.com/en-us/library/dn457361.aspx)\n cdmData = PRCDMData.replace('%CUSTOMDATA%', customData);\n\n // Convert CDM data into multibyte characters\n cdmDataBytes = [];\n for (i = 0; i < cdmData.length; ++i) {\n cdmDataBytes.push(cdmData.charCodeAt(i));\n cdmDataBytes.push(0);\n }\n\n return new Uint8Array(cdmDataBytes).buffer;\n }\n\n return null;\n }\n\n function getSessionId(cp) {\n // Get sessionId from protectionData or from manifest\n if (protData && protData.sessionId) {\n return protData.sessionId;\n } else if (cp && cp.sessionId) {\n return cp.sessionId;\n }\n return null;\n }\n\n instance = {\n uuid: uuid,\n schemeIdURI: schemeIdURI,\n systemString: systemString,\n getInitData: getInitData,\n getRequestHeadersFromMessage: getRequestHeadersFromMessage,\n getLicenseRequestFromMessage: getLicenseRequestFromMessage,\n getLicenseServerURLFromInitData: getLicenseServerURLFromInitData,\n getCDMData: getCDMData,\n getSessionId: getSessionId,\n setPlayReadyMessageFormat: setPlayReadyMessageFormat,\n init: init\n };\n\n return instance;\n}\n\nKeySystemPlayReady.__dashjs_factory_name = 'KeySystemPlayReady';\nexport default dashjs.FactoryMaker.getSingletonFactory(KeySystemPlayReady); /* jshint ignore:line */\n",
@@ -444,6 +455,8 @@
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc Represents a 128-bit keyID and 128-bit encryption key\n * @ignore\n */\nclass KeyPair {\n /**\n * @param {string} keyID 128-bit key ID, base64 encoded, with no padding\n * @param {string} key 128-bit encryption key, base64 encoded, with no padding\n * @class\n * @ignore\n */\n constructor(keyID, key) {\n this.keyID = keyID;\n this.key = key;\n }\n}\n\nexport default KeyPair;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc Creates a new key system access token. Represents a valid key system for\n * given piece of content and key system requirements. Used to initialize license\n * acquisition operations.\n * @ignore\n */\nclass KeySystemAccess {\n /**\n * @param {MediaPlayer.dependencies.protection.KeySystem} keySystem the key system\n * @param {KeySystemConfiguration} ksConfiguration the\n * subset of configurations passed to the key system access request that are supported\n * by this user agent\n * @class\n * @ignore\n */\n constructor(keySystem, ksConfiguration) {\n this.keySystem = keySystem;\n this.ksConfiguration = ksConfiguration;\n }\n}\n\nexport default KeySystemAccess;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * @classdesc Represents a set of configurations that describe the capabilities desired for\n * support by a given CDM\n * @ignore\n */\nclass KeySystemConfiguration {\n /**\n * @param {Array.} audioCapabilities array of\n * desired audio capabilities. Higher preference capabilities should be placed earlier\n * in the array.\n * @param {Array.} videoCapabilities array of\n * desired video capabilities. Higher preference capabilities should be placed earlier\n * in the array.\n * @param {string} distinctiveIdentifier desired use of distinctive identifiers.\n * One of \"required\", \"optional\", or \"not-allowed\"\n * @param {string} persistentState desired support for persistent storage of\n * key systems. One of \"required\", \"optional\", or \"not-allowed\"\n * @param {Array.} sessionTypes List of session types that must\n * be supported by the key system\n * @class\n */\n constructor(audioCapabilities, videoCapabilities, distinctiveIdentifier, persistentState, sessionTypes) {\n this.initDataTypes = [ 'cenc' ];\n if (audioCapabilities && audioCapabilities.length) {\n this.audioCapabilities = audioCapabilities;\n }\n if (videoCapabilities && videoCapabilities.length) {\n this.videoCapabilities = videoCapabilities;\n }\n this.distinctiveIdentifier = distinctiveIdentifier;\n this.persistentState = persistentState;\n this.sessionTypes = sessionTypes;\n }\n}\n\nexport default KeySystemConfiguration;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc Defines a license request\n * @ignore\n */\nclass LicenseRequest {\n /**\n * Defines a license request\n *\n * @class\n */\n constructor(url, method, responseType, headers, withCredentials, messageType, sessionId, data) {\n\n /**\n * The license request url\n */\n this.url = url;\n\n /**\n * The HTTP method\n */\n this.method = method;\n\n /**\n * The HTTP response type\n */\n this.responseType = responseType;\n\n /**\n * The HTP request headers\n */\n this.headers = headers;\n\n /**\n * Wether request is done using credentials (cross-site cookies)\n */\n this.withCredentials = withCredentials;\n\n /**\n * The license request message type (see https://www.w3.org/TR/encrypted-media/#dom-mediakeymessagetype)\n */\n this.messageType = messageType;\n\n /**\n * The corresponding EME session ID\n */\n this.sessionId = sessionId;\n\n /**\n * The license request data\n */\n this.data = data;\n }\n}\n\nexport default LicenseRequest;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc Defines a license response\n */\nclass LicenseResponse {\n /**\n * Defines a license request\n *\n * @class\n * @ignore\n */\n constructor(url, headers, data) {\n\n /**\n * The url that was loaded, that can be redirected from original request url\n */\n this.url = url;\n\n /**\n * The HTP response headers\n */\n this.headers = headers;\n\n /**\n * The license response data\n */\n this.data = data;\n }\n}\n\nexport default LicenseResponse;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc A media capability\n * @ignore\n */\nclass MediaCapability {\n /**\n * @param {string} contentType MIME type and codecs (RFC6386)\n * @param {string} robustness\n * @class\n * @ignore\n */\n constructor(contentType, robustness) {\n this.contentType = contentType;\n this.robustness = robustness;\n }\n}\n\nexport default MediaCapability;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc NeedKey\n * @ignore\n */\nclass NeedKey {\n /**\n * @param {ArrayBuffer} initData the initialization data\n * @param {string} initDataType initialization data type\n * @class\n */\n constructor(initData, initDataType) {\n this.initData = initData;\n this.initDataType = initDataType;\n }\n}\n\nexport default NeedKey;\n",
"\nimport FactoryMaker from '../../core/FactoryMaker';\n\n\nfunction DroppedFramesHistory() {\n\n let values = [];\n let lastDroppedFrames = 0;\n let lastTotalFrames = 0;\n\n function push(index, playbackQuality) {\n let droppedVideoFrames = playbackQuality && playbackQuality.droppedVideoFrames ? playbackQuality.droppedVideoFrames : 0;\n let totalVideoFrames = playbackQuality && playbackQuality.totalVideoFrames ? playbackQuality.totalVideoFrames : 0;\n\n let intervalDroppedFrames = droppedVideoFrames - lastDroppedFrames;\n lastDroppedFrames = droppedVideoFrames;\n\n let intervalTotalFrames = totalVideoFrames - lastTotalFrames;\n lastTotalFrames = totalVideoFrames;\n\n if (!isNaN(index)) {\n if (!values[index]) {\n values[index] = {droppedVideoFrames: intervalDroppedFrames, totalVideoFrames: intervalTotalFrames};\n } else {\n values[index].droppedVideoFrames += intervalDroppedFrames;\n values[index].totalVideoFrames += intervalTotalFrames;\n }\n }\n }\n\n function getDroppedFrameHistory() {\n return values;\n }\n\n function reset(playbackQuality) {\n values = [];\n lastDroppedFrames = playbackQuality.droppedVideoFrames;\n lastTotalFrames = playbackQuality.totalVideoFrames;\n }\n\n return {\n push: push,\n getFrameHistory: getDroppedFrameHistory,\n reset: reset\n };\n}\n\nDroppedFramesHistory.__dashjs_factory_name = 'DroppedFramesHistory';\nconst factory = FactoryMaker.getClassFactory(DroppedFramesHistory);\nexport default factory;\n",
@@ -451,19 +464,19 @@
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\n\nconst NO_CHANGE = -1;\nconst PRIORITY = {\n DEFAULT: 0.5,\n STRONG: 1,\n WEAK: 0\n};\n\nfunction SwitchRequest(q, r, p) {\n //TODO refactor all the calls to this to use config to be like everything else.\n let instance,\n quality,\n priority,\n reason;\n\n // check priority value\n function getPriority(p) {\n let ret = PRIORITY.DEFAULT;\n\n // check that p is one of declared priority value\n if (p === PRIORITY.DEFAULT || p === PRIORITY.STRONG || p === PRIORITY.WEAK) {\n ret = p;\n }\n return ret;\n }\n\n // init attributes\n quality = (q === undefined) ? NO_CHANGE : q;\n priority = getPriority(p);\n reason = (r === undefined) ? null : r;\n\n instance = {\n quality: quality,\n reason: reason,\n priority: priority\n };\n\n return instance;\n}\n\nSwitchRequest.__dashjs_factory_name = 'SwitchRequest';\nconst factory = FactoryMaker.getClassFactory(SwitchRequest);\nfactory.NO_CHANGE = NO_CHANGE;\nfactory.PRIORITY = PRIORITY;\nFactoryMaker.updateClassFactory(SwitchRequest.__dashjs_factory_name, factory);\n\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport SwitchRequest from './SwitchRequest';\n\nconst SWITCH_REQUEST_HISTORY_DEPTH = 8; // must be > SwitchHistoryRule SAMPLE_SIZE to enable rule\n\nfunction SwitchRequestHistory() {\n let switchRequests = []; // running total\n let srHistory = []; // history of each switch\n\n function push(switchRequest) {\n if (switchRequest.newValue === SwitchRequest.NO_CHANGE) {\n switchRequest.newValue = switchRequest.oldValue;\n }\n if (!switchRequests[switchRequest.oldValue]) {\n switchRequests[switchRequest.oldValue] = {noDrops: 0, drops: 0, dropSize: 0};\n }\n\n // Set switch details\n let indexDiff = switchRequest.newValue - switchRequest.oldValue;\n let drop = (indexDiff < 0) ? 1 : 0;\n let dropSize = drop ? -indexDiff : 0;\n let noDrop = drop ? 0 : 1;\n\n // Update running totals\n switchRequests[switchRequest.oldValue].drops += drop;\n switchRequests[switchRequest.oldValue].dropSize += dropSize;\n switchRequests[switchRequest.oldValue].noDrops += noDrop;\n\n // Save to history\n srHistory.push({idx: switchRequest.oldValue, noDrop: noDrop, drop: drop, dropSize: dropSize});\n\n // Shift earliest switch off srHistory and readjust to keep depth of running totals constant\n if ( srHistory.length > SWITCH_REQUEST_HISTORY_DEPTH ) {\n let srHistoryFirst = srHistory.shift();\n switchRequests[srHistoryFirst.idx].drops -= srHistoryFirst.drop;\n switchRequests[srHistoryFirst.idx].dropSize -= srHistoryFirst.dropSize;\n switchRequests[srHistoryFirst.idx].noDrops -= srHistoryFirst.noDrop;\n }\n }\n\n function getSwitchRequests() {\n return switchRequests;\n }\n\n function reset() {\n switchRequests = [];\n srHistory = [];\n }\n\n return {\n push: push,\n getSwitchRequests: getSwitchRequests,\n reset: reset\n };\n}\n\nSwitchRequestHistory.__dashjs_factory_name = 'SwitchRequestHistory';\nconst factory = FactoryMaker.getClassFactory(SwitchRequestHistory);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2017, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport Constants from '../constants/Constants';\nimport FactoryMaker from '../../core/FactoryMaker';\n\n// throughput generally stored in kbit/s\n// latency generally stored in ms\n\nfunction ThroughputHistory(config) {\n\n config = config || {};\n // sliding window constants\n const MAX_MEASUREMENTS_TO_KEEP = 20;\n const AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_LIVE = 3;\n const AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_VOD = 4;\n const AVERAGE_LATENCY_SAMPLE_AMOUNT = 4;\n const THROUGHPUT_DECREASE_SCALE = 1.3;\n const THROUGHPUT_INCREASE_SCALE = 1.3;\n\n // EWMA constants\n const EWMA_THROUGHPUT_SLOW_HALF_LIFE_SECONDS = 8;\n const EWMA_THROUGHPUT_FAST_HALF_LIFE_SECONDS = 3;\n const EWMA_LATENCY_SLOW_HALF_LIFE_COUNT = 2;\n const EWMA_LATENCY_FAST_HALF_LIFE_COUNT = 1;\n\n const settings = config.settings;\n\n let throughputDict,\n latencyDict,\n ewmaThroughputDict,\n ewmaLatencyDict,\n ewmaHalfLife;\n\n function setup() {\n ewmaHalfLife = {\n throughputHalfLife: { fast: EWMA_THROUGHPUT_FAST_HALF_LIFE_SECONDS, slow: EWMA_THROUGHPUT_SLOW_HALF_LIFE_SECONDS },\n latencyHalfLife: { fast: EWMA_LATENCY_FAST_HALF_LIFE_COUNT, slow: EWMA_LATENCY_SLOW_HALF_LIFE_COUNT }\n };\n\n reset();\n }\n\n function isCachedResponse(mediaType, latencyMs, downloadTimeMs) {\n if (mediaType === Constants.VIDEO) {\n return downloadTimeMs < settings.get().streaming.cacheLoadThresholds[Constants.VIDEO];\n } else if (mediaType === Constants.AUDIO) {\n return downloadTimeMs < settings.get().streaming.cacheLoadThresholds[Constants.AUDIO];\n }\n }\n\n function push(mediaType, httpRequest, useDeadTimeLatency) {\n if (!httpRequest.trace || !httpRequest.trace.length) {\n return;\n }\n\n const latencyTimeInMilliseconds = (httpRequest.tresponse.getTime() - httpRequest.trequest.getTime()) || 1;\n const downloadTimeInMilliseconds = (httpRequest._tfinish.getTime() - httpRequest.tresponse.getTime()) || 1; //Make sure never 0 we divide by this value. Avoid infinity!\n const downloadBytes = httpRequest.trace.reduce((a, b) => a + b.b[0], 0);\n\n let throughputMeasureTime;\n if (settings.get().streaming.lowLatencyEnabled) {\n throughputMeasureTime = httpRequest.trace.reduce((a, b) => a + b.d, 0);\n } else {\n throughputMeasureTime = useDeadTimeLatency ? downloadTimeInMilliseconds : latencyTimeInMilliseconds + downloadTimeInMilliseconds;\n }\n\n const throughput = Math.round((8 * downloadBytes) / throughputMeasureTime); // bits/ms = kbits/s\n\n checkSettingsForMediaType(mediaType);\n\n if (isCachedResponse(mediaType, latencyTimeInMilliseconds, downloadTimeInMilliseconds)) {\n if (throughputDict[mediaType].length > 0 && !throughputDict[mediaType].hasCachedEntries) {\n // already have some entries which are not cached entries\n // prevent cached fragment loads from skewing the average values\n return;\n } else { // have no entries || have cached entries\n // no uncached entries yet, rely on cached entries because ABR rules need something to go by\n throughputDict[mediaType].hasCachedEntries = true;\n }\n } else if (throughputDict[mediaType] && throughputDict[mediaType].hasCachedEntries) {\n // if we are here then we have some entries already, but they are cached, and now we have a new uncached entry\n clearSettingsForMediaType(mediaType);\n }\n\n throughputDict[mediaType].push(throughput);\n if (throughputDict[mediaType].length > MAX_MEASUREMENTS_TO_KEEP) {\n throughputDict[mediaType].shift();\n }\n\n latencyDict[mediaType].push(latencyTimeInMilliseconds);\n if (latencyDict[mediaType].length > MAX_MEASUREMENTS_TO_KEEP) {\n latencyDict[mediaType].shift();\n }\n\n updateEwmaEstimate(ewmaThroughputDict[mediaType], throughput, 0.001 * downloadTimeInMilliseconds, ewmaHalfLife.throughputHalfLife);\n updateEwmaEstimate(ewmaLatencyDict[mediaType], latencyTimeInMilliseconds, 1, ewmaHalfLife.latencyHalfLife);\n }\n\n function updateEwmaEstimate(ewmaObj, value, weight, halfLife) {\n // Note about startup:\n // Estimates start at 0, so early values are underestimated.\n // This effect is countered in getAverageEwma() by dividing the estimates by:\n // 1 - Math.pow(0.5, ewmaObj.totalWeight / halfLife)\n\n const fastAlpha = Math.pow(0.5, weight / halfLife.fast);\n ewmaObj.fastEstimate = (1 - fastAlpha) * value + fastAlpha * ewmaObj.fastEstimate;\n\n const slowAlpha = Math.pow(0.5, weight / halfLife.slow);\n ewmaObj.slowEstimate = (1 - slowAlpha) * value + slowAlpha * ewmaObj.slowEstimate;\n\n ewmaObj.totalWeight += weight;\n }\n\n function getSampleSize(isThroughput, mediaType, isLive) {\n let arr,\n sampleSize;\n\n if (isThroughput) {\n arr = throughputDict[mediaType];\n sampleSize = isLive ? AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_LIVE : AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_VOD;\n } else {\n arr = latencyDict[mediaType];\n sampleSize = AVERAGE_LATENCY_SAMPLE_AMOUNT;\n }\n\n if (!arr) {\n sampleSize = 0;\n } else if (sampleSize >= arr.length) {\n sampleSize = arr.length;\n } else if (isThroughput) {\n // if throughput samples vary a lot, average over a wider sample\n for (let i = 1; i < sampleSize; ++i) {\n const ratio = arr[arr.length - i] / arr[arr.length - i - 1];\n if (ratio >= THROUGHPUT_INCREASE_SCALE || ratio <= 1 / THROUGHPUT_DECREASE_SCALE) {\n sampleSize += 1;\n if (sampleSize === arr.length) { // cannot increase sampleSize beyond arr.length\n break;\n }\n }\n }\n }\n\n return sampleSize;\n }\n\n function getAverage(isThroughput, mediaType, isDynamic) {\n // only two moving average methods defined at the moment\n return settings.get().streaming.abr.movingAverageMethod !== Constants.MOVING_AVERAGE_SLIDING_WINDOW ?\n getAverageEwma(isThroughput, mediaType) : getAverageSlidingWindow(isThroughput, mediaType, isDynamic);\n }\n\n function getAverageSlidingWindow(isThroughput, mediaType, isDynamic) {\n const sampleSize = getSampleSize(isThroughput, mediaType, isDynamic);\n const dict = isThroughput ? throughputDict : latencyDict;\n let arr = dict[mediaType];\n\n if (sampleSize === 0 || !arr || arr.length === 0) {\n return NaN;\n }\n\n arr = arr.slice(-sampleSize); // still works if sampleSize too large\n // arr.length >= 1\n return arr.reduce((total, elem) => total + elem) / arr.length;\n }\n\n function getAverageEwma(isThroughput, mediaType) {\n const halfLife = isThroughput ? ewmaHalfLife.throughputHalfLife : ewmaHalfLife.latencyHalfLife;\n const ewmaObj = isThroughput ? ewmaThroughputDict[mediaType] : ewmaLatencyDict[mediaType];\n\n if (!ewmaObj || ewmaObj.totalWeight <= 0) {\n return NaN;\n }\n\n // to correct for startup, divide by zero factor = 1 - Math.pow(0.5, ewmaObj.totalWeight / halfLife)\n const fastEstimate = ewmaObj.fastEstimate / (1 - Math.pow(0.5, ewmaObj.totalWeight / halfLife.fast));\n const slowEstimate = ewmaObj.slowEstimate / (1 - Math.pow(0.5, ewmaObj.totalWeight / halfLife.slow));\n return isThroughput ? Math.min(fastEstimate, slowEstimate) : Math.max(fastEstimate, slowEstimate);\n }\n\n function getAverageThroughput(mediaType, isDynamic) {\n return getAverage(true, mediaType, isDynamic);\n }\n\n function getSafeAverageThroughput(mediaType, isDynamic) {\n let average = getAverageThroughput(mediaType, isDynamic);\n if (!isNaN(average)) {\n average *= settings.get().streaming.abr.bandwidthSafetyFactor;\n }\n return average;\n }\n\n function getAverageLatency(mediaType) {\n return getAverage(false, mediaType);\n }\n\n function checkSettingsForMediaType(mediaType) {\n throughputDict[mediaType] = throughputDict[mediaType] || [];\n latencyDict[mediaType] = latencyDict[mediaType] || [];\n ewmaThroughputDict[mediaType] = ewmaThroughputDict[mediaType] || {fastEstimate: 0, slowEstimate: 0, totalWeight: 0};\n ewmaLatencyDict[mediaType] = ewmaLatencyDict[mediaType] || {fastEstimate: 0, slowEstimate: 0, totalWeight: 0};\n }\n\n function clearSettingsForMediaType(mediaType) {\n delete throughputDict[mediaType];\n delete latencyDict[mediaType];\n delete ewmaThroughputDict[mediaType];\n delete ewmaLatencyDict[mediaType];\n checkSettingsForMediaType(mediaType);\n }\n\n function reset() {\n throughputDict = {};\n latencyDict = {};\n ewmaThroughputDict = {};\n ewmaLatencyDict = {};\n }\n\n const instance = {\n push: push,\n getAverageThroughput: getAverageThroughput,\n getSafeAverageThroughput: getSafeAverageThroughput,\n getAverageLatency: getAverageLatency,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nThroughputHistory.__dashjs_factory_name = 'ThroughputHistory';\nexport default FactoryMaker.getClassFactory(ThroughputHistory);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport ThroughputRule from './ThroughputRule';\nimport InsufficientBufferRule from './InsufficientBufferRule';\nimport AbandonRequestsRule from './AbandonRequestsRule';\nimport DroppedFramesRule from './DroppedFramesRule';\nimport SwitchHistoryRule from './SwitchHistoryRule';\nimport BolaRule from './BolaRule';\nimport L2ARule from './L2ARule.js';\nimport LoLPRule from './lolp/LoLpRule.js';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport SwitchRequest from '../SwitchRequest';\nimport Constants from '../../constants/Constants';\n\nconst QUALITY_SWITCH_RULES = 'qualitySwitchRules';\nconst ABANDON_FRAGMENT_RULES = 'abandonFragmentRules';\n\n\nfunction ABRRulesCollection(config) {\n\n config = config || {};\n const context = this.context;\n\n const mediaPlayerModel = config.mediaPlayerModel;\n const dashMetrics = config.dashMetrics;\n const settings = config.settings;\n\n let instance,\n qualitySwitchRules,\n abandonFragmentRules;\n\n function initialize() {\n qualitySwitchRules = [];\n abandonFragmentRules = [];\n\n if (settings.get().streaming.abr.useDefaultABRRules) {\n\n // If L2A is used we only need this one rule\n if (settings.get().streaming.abr.ABRStrategy === Constants.ABR_STRATEGY_L2A) {\n qualitySwitchRules.push(\n L2ARule(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n })\n );\n }\n // If LoLP is used we only need this one rule\n else if (settings.get().streaming.abr.ABRStrategy === Constants.ABR_STRATEGY_LoLP) {\n qualitySwitchRules.push(\n LoLPRule(context).create({\n dashMetrics: dashMetrics\n })\n );\n } else {\n // Only one of BolaRule and ThroughputRule will give a switchRequest.quality !== SwitchRequest.NO_CHANGE.\n // This is controlled by useBufferOccupancyABR mechanism in AbrController.\n qualitySwitchRules.push(\n BolaRule(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n })\n );\n\n qualitySwitchRules.push(\n ThroughputRule(context).create({\n dashMetrics: dashMetrics\n })\n );\n qualitySwitchRules.push(\n InsufficientBufferRule(context).create({\n dashMetrics: dashMetrics\n })\n );\n qualitySwitchRules.push(\n SwitchHistoryRule(context).create()\n );\n qualitySwitchRules.push(\n DroppedFramesRule(context).create()\n );\n\n abandonFragmentRules.push(\n AbandonRequestsRule(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n })\n );\n }\n }\n\n // add custom ABR rules if any\n const customRules = mediaPlayerModel.getABRCustomRules();\n customRules.forEach(function (rule) {\n if (rule.type === QUALITY_SWITCH_RULES) {\n qualitySwitchRules.push(rule.rule(context).create());\n }\n\n if (rule.type === ABANDON_FRAGMENT_RULES) {\n abandonFragmentRules.push(rule.rule(context).create());\n }\n });\n }\n\n function getActiveRules(srArray) {\n return srArray.filter(sr => sr.quality > SwitchRequest.NO_CHANGE);\n }\n\n function getMinSwitchRequest(srArray) {\n const values = {};\n let i,\n len,\n req,\n newQuality,\n quality;\n\n if (srArray.length === 0) {\n return;\n }\n\n values[SwitchRequest.PRIORITY.STRONG] = SwitchRequest.NO_CHANGE;\n values[SwitchRequest.PRIORITY.WEAK] = SwitchRequest.NO_CHANGE;\n values[SwitchRequest.PRIORITY.DEFAULT] = SwitchRequest.NO_CHANGE;\n\n for (i = 0, len = srArray.length; i < len; i += 1) {\n req = srArray[i];\n if (req.quality !== SwitchRequest.NO_CHANGE) {\n values[req.priority] = values[req.priority] > SwitchRequest.NO_CHANGE ? Math.min(values[req.priority], req.quality) : req.quality;\n }\n }\n\n if (values[SwitchRequest.PRIORITY.WEAK] !== SwitchRequest.NO_CHANGE) {\n newQuality = values[SwitchRequest.PRIORITY.WEAK];\n }\n\n if (values[SwitchRequest.PRIORITY.DEFAULT] !== SwitchRequest.NO_CHANGE) {\n newQuality = values[SwitchRequest.PRIORITY.DEFAULT];\n }\n\n if (values[SwitchRequest.PRIORITY.STRONG] !== SwitchRequest.NO_CHANGE) {\n newQuality = values[SwitchRequest.PRIORITY.STRONG];\n }\n\n if (newQuality !== SwitchRequest.NO_CHANGE) {\n quality = newQuality;\n }\n\n return SwitchRequest(context).create(quality);\n }\n\n function getMaxQuality(rulesContext) {\n const switchRequestArray = qualitySwitchRules.map(rule => rule.getMaxIndex(rulesContext));\n const activeRules = getActiveRules(switchRequestArray);\n const maxQuality = getMinSwitchRequest(activeRules);\n\n return maxQuality || SwitchRequest(context).create();\n }\n\n function shouldAbandonFragment(rulesContext) {\n const abandonRequestArray = abandonFragmentRules.map(rule => rule.shouldAbandon(rulesContext));\n const activeRules = getActiveRules(abandonRequestArray);\n const shouldAbandon = getMinSwitchRequest(activeRules);\n\n return shouldAbandon || SwitchRequest(context).create();\n }\n\n function reset() {\n [qualitySwitchRules, abandonFragmentRules].forEach(rules => {\n if (rules && rules.length) {\n rules.forEach(rule => rule.reset && rule.reset());\n }\n });\n qualitySwitchRules = [];\n abandonFragmentRules = [];\n }\n\n function getQualitySwitchRules() {\n return qualitySwitchRules;\n }\n\n instance = {\n initialize,\n reset,\n getMaxQuality,\n shouldAbandonFragment,\n getQualitySwitchRules\n };\n\n return instance;\n}\n\nABRRulesCollection.__dashjs_factory_name = 'ABRRulesCollection';\nconst factory = FactoryMaker.getClassFactory(ABRRulesCollection);\nfactory.QUALITY_SWITCH_RULES = QUALITY_SWITCH_RULES;\nfactory.ABANDON_FRAGMENT_RULES = ABANDON_FRAGMENT_RULES;\nFactoryMaker.updateSingletonFactory(ABRRulesCollection.__dashjs_factory_name, factory);\n\nexport default factory;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport ThroughputRule from './ThroughputRule';\nimport InsufficientBufferRule from './InsufficientBufferRule';\nimport AbandonRequestsRule from './AbandonRequestsRule';\nimport DroppedFramesRule from './DroppedFramesRule';\nimport SwitchHistoryRule from './SwitchHistoryRule';\nimport BolaRule from './BolaRule';\nimport L2ARule from './L2ARule.js';\nimport LoLPRule from './lolp/LoLpRule.js';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport SwitchRequest from '../SwitchRequest';\nimport Constants from '../../constants/Constants';\n\nconst QUALITY_SWITCH_RULES = 'qualitySwitchRules';\nconst ABANDON_FRAGMENT_RULES = 'abandonFragmentRules';\n\n\nfunction ABRRulesCollection(config) {\n\n config = config || {};\n const context = this.context;\n\n const mediaPlayerModel = config.mediaPlayerModel;\n const dashMetrics = config.dashMetrics;\n const settings = config.settings;\n\n let instance,\n qualitySwitchRules,\n abandonFragmentRules;\n\n function initialize() {\n qualitySwitchRules = [];\n abandonFragmentRules = [];\n\n if (settings.get().streaming.abr.useDefaultABRRules) {\n\n // If L2A is used we only need this one rule\n if (settings.get().streaming.abr.ABRStrategy === Constants.ABR_STRATEGY_L2A) {\n qualitySwitchRules.push(\n L2ARule(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n })\n );\n }\n // If LoLP is used we only need this one rule\n else if (settings.get().streaming.abr.ABRStrategy === Constants.ABR_STRATEGY_LoLP) {\n qualitySwitchRules.push(\n LoLPRule(context).create({\n dashMetrics: dashMetrics\n })\n );\n } else {\n // Only one of BolaRule and ThroughputRule will give a switchRequest.quality !== SwitchRequest.NO_CHANGE.\n // This is controlled by useBufferOccupancyABR mechanism in AbrController.\n qualitySwitchRules.push(\n BolaRule(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n })\n );\n\n qualitySwitchRules.push(\n ThroughputRule(context).create({\n dashMetrics: dashMetrics\n })\n );\n qualitySwitchRules.push(\n InsufficientBufferRule(context).create({\n dashMetrics: dashMetrics\n })\n );\n qualitySwitchRules.push(\n SwitchHistoryRule(context).create()\n );\n qualitySwitchRules.push(\n DroppedFramesRule(context).create()\n );\n\n abandonFragmentRules.push(\n AbandonRequestsRule(context).create({\n dashMetrics: dashMetrics,\n mediaPlayerModel: mediaPlayerModel,\n settings: settings\n })\n );\n }\n }\n\n // add custom ABR rules if any\n const customRules = mediaPlayerModel.getABRCustomRules();\n customRules.forEach(function (rule) {\n if (rule.type === QUALITY_SWITCH_RULES) {\n qualitySwitchRules.push(rule.rule(context).create());\n }\n\n if (rule.type === ABANDON_FRAGMENT_RULES) {\n abandonFragmentRules.push(rule.rule(context).create());\n }\n });\n }\n\n function getActiveRules(srArray) {\n return srArray.filter(sr => sr.quality > SwitchRequest.NO_CHANGE);\n }\n\n /**\n *\n * @param {array} srArray\n * @return {object} SwitchRequest\n */\n function getMinSwitchRequest(srArray) {\n const values = {};\n let newSwitchReq = null;\n let i,\n len,\n req,\n quality,\n reason;\n\n if (srArray.length === 0) {\n return;\n }\n\n values[SwitchRequest.PRIORITY.STRONG] = { quality: SwitchRequest.NO_CHANGE, reason: null };\n values[SwitchRequest.PRIORITY.WEAK] = { quality: SwitchRequest.NO_CHANGE, reason: null };\n values[SwitchRequest.PRIORITY.DEFAULT] = { quality: SwitchRequest.NO_CHANGE, reason: null };\n\n for (i = 0, len = srArray.length; i < len; i += 1) {\n req = srArray[i];\n if (req.quality !== SwitchRequest.NO_CHANGE) {\n // We only use the new quality in case it is lower than the already saved one or if no new quality has been selected for the respective priority\n if (values[req.priority].quality === SwitchRequest.NO_CHANGE || values[req.priority].quality > req.quality) {\n values[req.priority].quality = req.quality;\n values[req.priority].reason = req.reason || null;\n }\n }\n }\n\n if (values[SwitchRequest.PRIORITY.WEAK].quality !== SwitchRequest.NO_CHANGE) {\n newSwitchReq = values[SwitchRequest.PRIORITY.WEAK];\n }\n\n if (values[SwitchRequest.PRIORITY.DEFAULT].quality !== SwitchRequest.NO_CHANGE) {\n newSwitchReq = values[SwitchRequest.PRIORITY.DEFAULT];\n }\n\n if (values[SwitchRequest.PRIORITY.STRONG].quality !== SwitchRequest.NO_CHANGE) {\n newSwitchReq = values[SwitchRequest.PRIORITY.STRONG];\n }\n\n if (newSwitchReq) {\n quality = newSwitchReq.quality;\n reason = newSwitchReq.reason;\n }\n\n return SwitchRequest(context).create(quality, reason);\n }\n\n function getMaxQuality(rulesContext) {\n const switchRequestArray = qualitySwitchRules.map(rule => rule.getMaxIndex(rulesContext));\n const activeRules = getActiveRules(switchRequestArray);\n const maxQuality = getMinSwitchRequest(activeRules);\n\n return maxQuality || SwitchRequest(context).create();\n }\n\n function shouldAbandonFragment(rulesContext) {\n const abandonRequestArray = abandonFragmentRules.map(rule => rule.shouldAbandon(rulesContext));\n const activeRules = getActiveRules(abandonRequestArray);\n const shouldAbandon = getMinSwitchRequest(activeRules);\n\n return shouldAbandon || SwitchRequest(context).create();\n }\n\n function reset() {\n [qualitySwitchRules, abandonFragmentRules].forEach(rules => {\n if (rules && rules.length) {\n rules.forEach(rule => rule.reset && rule.reset());\n }\n });\n qualitySwitchRules = [];\n abandonFragmentRules = [];\n }\n\n function getQualitySwitchRules() {\n return qualitySwitchRules;\n }\n\n instance = {\n initialize,\n reset,\n getMaxQuality,\n getMinSwitchRequest,\n shouldAbandonFragment,\n getQualitySwitchRules\n };\n\n return instance;\n}\n\nABRRulesCollection.__dashjs_factory_name = 'ABRRulesCollection';\nconst factory = FactoryMaker.getClassFactory(ABRRulesCollection);\nfactory.QUALITY_SWITCH_RULES = QUALITY_SWITCH_RULES;\nfactory.ABANDON_FRAGMENT_RULES = ABANDON_FRAGMENT_RULES;\nFactoryMaker.updateSingletonFactory(ABRRulesCollection.__dashjs_factory_name, factory);\n\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport SwitchRequest from '../SwitchRequest';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport Debug from '../../../core/Debug';\n\nfunction AbandonRequestsRule(config) {\n\n config = config || {};\n const ABANDON_MULTIPLIER = 1.8;\n const GRACE_TIME_THRESHOLD = 500;\n const MIN_LENGTH_TO_AVERAGE = 5;\n\n const context = this.context;\n const mediaPlayerModel = config.mediaPlayerModel;\n const dashMetrics = config.dashMetrics;\n const settings = config.settings;\n\n let instance,\n logger,\n fragmentDict,\n abandonDict,\n throughputArray;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n reset();\n }\n\n function setFragmentRequestDict(type, id) {\n fragmentDict[type] = fragmentDict[type] || {};\n fragmentDict[type][id] = fragmentDict[type][id] || {};\n }\n\n function storeLastRequestThroughputByType(type, throughput) {\n throughputArray[type] = throughputArray[type] || [];\n throughputArray[type].push(throughput);\n }\n\n function shouldAbandon(rulesContext) {\n const switchRequest = SwitchRequest(context).create(SwitchRequest.NO_CHANGE, {name: AbandonRequestsRule.__dashjs_factory_name});\n\n if (!rulesContext || !rulesContext.hasOwnProperty('getMediaInfo') || !rulesContext.hasOwnProperty('getMediaType') || !rulesContext.hasOwnProperty('getCurrentRequest') ||\n !rulesContext.hasOwnProperty('getRepresentationInfo') || !rulesContext.hasOwnProperty('getAbrController')) {\n return switchRequest;\n }\n\n const mediaInfo = rulesContext.getMediaInfo();\n const mediaType = rulesContext.getMediaType();\n const req = rulesContext.getCurrentRequest();\n\n if (!isNaN(req.index)) {\n setFragmentRequestDict(mediaType, req.index);\n\n const stableBufferTime = mediaPlayerModel.getStableBufferTime();\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n if ( bufferLevel > stableBufferTime ) {\n return switchRequest;\n }\n\n const fragmentInfo = fragmentDict[mediaType][req.index];\n if (fragmentInfo === null || req.firstByteDate === null || abandonDict.hasOwnProperty(fragmentInfo.id)) {\n return switchRequest;\n }\n\n //setup some init info based on first progress event\n if (fragmentInfo.firstByteTime === undefined) {\n throughputArray[mediaType] = [];\n fragmentInfo.firstByteTime = req.firstByteDate.getTime();\n fragmentInfo.segmentDuration = req.duration;\n fragmentInfo.bytesTotal = req.bytesTotal;\n fragmentInfo.id = req.index;\n }\n fragmentInfo.bytesLoaded = req.bytesLoaded;\n fragmentInfo.elapsedTime = new Date().getTime() - fragmentInfo.firstByteTime;\n\n if (fragmentInfo.bytesLoaded > 0 && fragmentInfo.elapsedTime > 0) {\n storeLastRequestThroughputByType(mediaType, Math.round(fragmentInfo.bytesLoaded * 8 / fragmentInfo.elapsedTime));\n }\n\n if (throughputArray[mediaType].length >= MIN_LENGTH_TO_AVERAGE &&\n fragmentInfo.elapsedTime > GRACE_TIME_THRESHOLD &&\n fragmentInfo.bytesLoaded < fragmentInfo.bytesTotal) {\n\n const totalSampledValue = throughputArray[mediaType].reduce((a, b) => a + b, 0);\n fragmentInfo.measuredBandwidthInKbps = Math.round(totalSampledValue / throughputArray[mediaType].length);\n fragmentInfo.estimatedTimeOfDownload = +((fragmentInfo.bytesTotal * 8 / fragmentInfo.measuredBandwidthInKbps) / 1000).toFixed(2);\n\n if (fragmentInfo.estimatedTimeOfDownload < fragmentInfo.segmentDuration * ABANDON_MULTIPLIER || rulesContext.getRepresentationInfo().quality === 0 ) {\n return switchRequest;\n } else if (!abandonDict.hasOwnProperty(fragmentInfo.id)) {\n\n const abrController = rulesContext.getAbrController();\n const bytesRemaining = fragmentInfo.bytesTotal - fragmentInfo.bytesLoaded;\n const bitrateList = abrController.getBitrateList(mediaInfo);\n const quality = abrController.getQualityForBitrate(mediaInfo, fragmentInfo.measuredBandwidthInKbps * settings.get().streaming.abr.bandwidthSafetyFactor);\n const minQuality = abrController.getMinAllowedIndexFor(mediaType);\n const newQuality = (minQuality !== undefined) ? Math.max(minQuality, quality) : quality;\n const estimateOtherBytesTotal = fragmentInfo.bytesTotal * bitrateList[newQuality].bitrate / bitrateList[abrController.getQualityFor(mediaType)].bitrate;\n\n if (bytesRemaining > estimateOtherBytesTotal) {\n switchRequest.quality = newQuality;\n switchRequest.reason.throughput = fragmentInfo.measuredBandwidthInKbps;\n switchRequest.reason.fragmentID = fragmentInfo.id;\n abandonDict[fragmentInfo.id] = fragmentInfo;\n logger.debug('[' + mediaType + '] frag id',fragmentInfo.id,' is asking to abandon and switch to quality to ', newQuality, ' measured bandwidth was', fragmentInfo.measuredBandwidthInKbps);\n delete fragmentDict[mediaType][fragmentInfo.id];\n }\n }\n } else if (fragmentInfo.bytesLoaded === fragmentInfo.bytesTotal) {\n delete fragmentDict[mediaType][fragmentInfo.id];\n }\n }\n\n return switchRequest;\n }\n\n function reset() {\n fragmentDict = {};\n abandonDict = {};\n throughputArray = [];\n }\n\n instance = {\n shouldAbandon: shouldAbandon,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nAbandonRequestsRule.__dashjs_factory_name = 'AbandonRequestsRule';\nexport default FactoryMaker.getClassFactory(AbandonRequestsRule);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2016, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n// For a description of the BOLA adaptive bitrate (ABR) algorithm, see http://arxiv.org/abs/1601.06748\n\nimport MetricsConstants from '../../constants/MetricsConstants';\nimport SwitchRequest from '../SwitchRequest';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport { HTTPRequest } from '../../vo/metrics/HTTPRequest';\nimport EventBus from '../../../core/EventBus';\nimport Events from '../../../core/events/Events';\nimport Debug from '../../../core/Debug';\n\n// BOLA_STATE_ONE_BITRATE : If there is only one bitrate (or initialization failed), always return NO_CHANGE.\n// BOLA_STATE_STARTUP : Set placeholder buffer such that we download fragments at most recently measured throughput.\n// BOLA_STATE_STEADY : Buffer primed, we switch to steady operation.\n// TODO: add BOLA_STATE_SEEK and tune BOLA behavior on seeking\nconst BOLA_STATE_ONE_BITRATE = 0;\nconst BOLA_STATE_STARTUP = 1;\nconst BOLA_STATE_STEADY = 2;\n\nconst MINIMUM_BUFFER_S = 10; // BOLA should never add artificial delays if buffer is less than MINIMUM_BUFFER_S.\nconst MINIMUM_BUFFER_PER_BITRATE_LEVEL_S = 2;\n// E.g. if there are 5 bitrates, BOLA switches to top bitrate at buffer = 10 + 5 * 2 = 20s.\n// If Schedule Controller does not allow buffer to reach that level, it can be achieved through the placeholder buffer level.\n\nconst PLACEHOLDER_BUFFER_DECAY = 0.99; // Make sure placeholder buffer does not stick around too long.\n\nfunction BolaRule(config) {\n\n config = config || {};\n const context = this.context;\n\n const dashMetrics = config.dashMetrics;\n const mediaPlayerModel = config.mediaPlayerModel;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n bolaStateDict;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n resetInitialSettings();\n\n eventBus.on(Events.BUFFER_EMPTY, onBufferEmpty, instance);\n eventBus.on(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.on(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, instance);\n eventBus.on(Events.METRIC_ADDED, onMetricAdded, instance);\n eventBus.on(Events.QUALITY_CHANGE_REQUESTED, onQualityChangeRequested, instance);\n eventBus.on(Events.FRAGMENT_LOADING_ABANDONED, onFragmentLoadingAbandoned, instance);\n }\n\n function utilitiesFromBitrates(bitrates) {\n return bitrates.map(b => Math.log(b));\n // no need to worry about offset, utilities will be offset (uniformly) anyway later\n }\n\n // NOTE: in live streaming, the real buffer level can drop below minimumBufferS, but bola should not stick to lowest bitrate by using a placeholder buffer level\n function calculateBolaParameters(stableBufferTime, bitrates, utilities) {\n const highestUtilityIndex = utilities.reduce((highestIndex, u, uIndex) => (u > utilities[highestIndex] ? uIndex : highestIndex), 0);\n\n if (highestUtilityIndex === 0) {\n // if highestUtilityIndex === 0, then always use lowest bitrate\n return null;\n }\n\n const bufferTime = Math.max(stableBufferTime, MINIMUM_BUFFER_S + MINIMUM_BUFFER_PER_BITRATE_LEVEL_S * bitrates.length);\n\n // TODO: Investigate if following can be better if utilities are not the default Math.log utilities.\n // If using Math.log utilities, we can choose Vp and gp to always prefer bitrates[0] at minimumBufferS and bitrates[max] at bufferTarget.\n // (Vp * (utility + gp) - bufferLevel) / bitrate has the maxima described when:\n // Vp * (utilities[0] + gp - 1) === minimumBufferS and Vp * (utilities[max] + gp - 1) === bufferTarget\n // giving:\n const gp = (utilities[highestUtilityIndex] - 1) / (bufferTime / MINIMUM_BUFFER_S - 1);\n const Vp = MINIMUM_BUFFER_S / gp;\n // note that expressions for gp and Vp assume utilities[0] === 1, which is true because of normalization\n\n return {gp: gp, Vp: Vp};\n }\n\n function getInitialBolaState(rulesContext) {\n const initialState = {};\n const mediaInfo = rulesContext.getMediaInfo();\n const bitrates = mediaInfo.bitrateList.map(b => b.bandwidth);\n let utilities = utilitiesFromBitrates(bitrates);\n utilities = utilities.map(u => u - utilities[0] + 1); // normalize\n const stableBufferTime = mediaPlayerModel.getStableBufferTime();\n const params = calculateBolaParameters(stableBufferTime, bitrates, utilities);\n\n if (!params) {\n // only happens when there is only one bitrate level\n initialState.state = BOLA_STATE_ONE_BITRATE;\n } else {\n initialState.state = BOLA_STATE_STARTUP;\n\n initialState.bitrates = bitrates;\n initialState.utilities = utilities;\n initialState.stableBufferTime = stableBufferTime;\n initialState.Vp = params.Vp;\n initialState.gp = params.gp;\n\n initialState.lastQuality = 0;\n clearBolaStateOnSeek(initialState);\n }\n\n return initialState;\n }\n\n function clearBolaStateOnSeek(bolaState) {\n bolaState.placeholderBuffer = 0;\n bolaState.mostAdvancedSegmentStart = NaN;\n bolaState.lastSegmentWasReplacement = false;\n bolaState.lastSegmentStart = NaN;\n bolaState.lastSegmentDurationS = NaN;\n bolaState.lastSegmentRequestTimeMs = NaN;\n bolaState.lastSegmentFinishTimeMs = NaN;\n }\n\n // If the buffer target is changed (can this happen mid-stream?), then adjust BOLA parameters accordingly.\n function checkBolaStateStableBufferTime(bolaState, mediaType) {\n const stableBufferTime = mediaPlayerModel.getStableBufferTime();\n if (bolaState.stableBufferTime !== stableBufferTime) {\n const params = calculateBolaParameters(stableBufferTime, bolaState.bitrates, bolaState.utilities);\n if (params.Vp !== bolaState.Vp || params.gp !== bolaState.gp) {\n // correct placeholder buffer using two criteria:\n // 1. do not change effective buffer level at effectiveBufferLevel === MINIMUM_BUFFER_S ( === Vp * gp )\n // 2. scale placeholder buffer by Vp subject to offset indicated in 1.\n\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n let effectiveBufferLevel = bufferLevel + bolaState.placeholderBuffer;\n\n effectiveBufferLevel -= MINIMUM_BUFFER_S;\n effectiveBufferLevel *= params.Vp / bolaState.Vp;\n effectiveBufferLevel += MINIMUM_BUFFER_S;\n\n bolaState.stableBufferTime = stableBufferTime;\n bolaState.Vp = params.Vp;\n bolaState.gp = params.gp;\n bolaState.placeholderBuffer = Math.max(0, effectiveBufferLevel - bufferLevel);\n }\n }\n }\n\n function getBolaState(rulesContext) {\n const mediaType = rulesContext.getMediaType();\n let bolaState = bolaStateDict[mediaType];\n if (!bolaState) {\n bolaState = getInitialBolaState(rulesContext);\n bolaStateDict[mediaType] = bolaState;\n } else if (bolaState.state !== BOLA_STATE_ONE_BITRATE) {\n checkBolaStateStableBufferTime(bolaState, mediaType);\n }\n return bolaState;\n }\n\n // The core idea of BOLA.\n function getQualityFromBufferLevel(bolaState, bufferLevel) {\n const bitrateCount = bolaState.bitrates.length;\n let quality = NaN;\n let score = NaN;\n for (let i = 0; i < bitrateCount; ++i) {\n let s = (bolaState.Vp * (bolaState.utilities[i] + bolaState.gp) - bufferLevel) / bolaState.bitrates[i];\n if (isNaN(score) || s >= score) {\n score = s;\n quality = i;\n }\n }\n return quality;\n }\n\n // maximum buffer level which prefers to download at quality rather than wait\n function maxBufferLevelForQuality(bolaState, quality) {\n return bolaState.Vp * (bolaState.utilities[quality] + bolaState.gp);\n }\n\n // the minimum buffer level that would cause BOLA to choose quality rather than a lower bitrate\n function minBufferLevelForQuality(bolaState, quality) {\n const qBitrate = bolaState.bitrates[quality];\n const qUtility = bolaState.utilities[quality];\n\n let min = 0;\n for (let i = quality - 1; i >= 0; --i) {\n // for each bitrate less than bitrates[quality], BOLA should prefer quality (unless other bitrate has higher utility)\n if (bolaState.utilities[i] < bolaState.utilities[quality]) {\n const iBitrate = bolaState.bitrates[i];\n const iUtility = bolaState.utilities[i];\n\n const level = bolaState.Vp * (bolaState.gp + (qBitrate * iUtility - iBitrate * qUtility) / (qBitrate - iBitrate));\n min = Math.max(min, level); // we want min to be small but at least level(i) for all i\n }\n }\n return min;\n }\n\n /*\n * The placeholder buffer increases the effective buffer that is used to calculate the bitrate.\n * There are two main reasons we might want to increase the placeholder buffer:\n *\n * 1. When a segment finishes downloading, we would expect to get a call on getMaxIndex() regarding the quality for\n * the next segment. However, there might be a delay before the next call. E.g. when streaming live content, the\n * next segment might not be available yet. If the call to getMaxIndex() does happens after a delay, we don't\n * want the delay to change the BOLA decision - we only want to factor download time to decide on bitrate level.\n *\n * 2. It is possible to get a call to getMaxIndex() without having a segment download. The buffer target in dash.js\n * is different for top-quality segments and lower-quality segments. If getMaxIndex() returns a lower-than-top\n * quality, then the buffer controller might decide not to download a segment. When dash.js is ready for the next\n * segment, getMaxIndex() will be called again. We don't want this extra delay to factor in the bitrate decision.\n */\n function updatePlaceholderBuffer(bolaState, mediaType) {\n const nowMs = Date.now();\n\n if (!isNaN(bolaState.lastSegmentFinishTimeMs)) {\n // compensate for non-bandwidth-derived delays, e.g., live streaming availability, buffer controller\n const delay = 0.001 * (nowMs - bolaState.lastSegmentFinishTimeMs);\n bolaState.placeholderBuffer += Math.max(0, delay);\n } else if (!isNaN(bolaState.lastCallTimeMs)) {\n // no download after last call, compensate for delay between calls\n const delay = 0.001 * (nowMs - bolaState.lastCallTimeMs);\n bolaState.placeholderBuffer += Math.max(0, delay);\n }\n\n bolaState.lastCallTimeMs = nowMs;\n bolaState.lastSegmentStart = NaN;\n bolaState.lastSegmentRequestTimeMs = NaN;\n bolaState.lastSegmentFinishTimeMs = NaN;\n\n checkBolaStateStableBufferTime(bolaState, mediaType);\n }\n\n function onBufferEmpty() {\n // if we rebuffer, we don't want the placeholder buffer to artificially raise BOLA quality\n for (const mediaType in bolaStateDict) {\n if (bolaStateDict.hasOwnProperty(mediaType) && bolaStateDict[mediaType].state === BOLA_STATE_STEADY) {\n bolaStateDict[mediaType].placeholderBuffer = 0;\n }\n }\n }\n\n function onPlaybackSeeking() {\n // TODO: 1. Verify what happens if we seek mid-fragment.\n // TODO: 2. If e.g. we have 10s fragments and seek, we might want to download the first fragment at a lower quality to restart playback quickly.\n for (const mediaType in bolaStateDict) {\n if (bolaStateDict.hasOwnProperty(mediaType)) {\n const bolaState = bolaStateDict[mediaType];\n if (bolaState.state !== BOLA_STATE_ONE_BITRATE) {\n bolaState.state = BOLA_STATE_STARTUP; // TODO: BOLA_STATE_SEEK?\n clearBolaStateOnSeek(bolaState);\n }\n }\n }\n }\n\n function onMediaFragmentLoaded(e) {\n if (e && e.chunk && e.chunk.mediaInfo) {\n const bolaState = bolaStateDict[e.chunk.mediaInfo.type];\n if (bolaState && bolaState.state !== BOLA_STATE_ONE_BITRATE) {\n const start = e.chunk.start;\n if (isNaN(bolaState.mostAdvancedSegmentStart) || start > bolaState.mostAdvancedSegmentStart) {\n bolaState.mostAdvancedSegmentStart = start;\n bolaState.lastSegmentWasReplacement = false;\n } else {\n bolaState.lastSegmentWasReplacement = true;\n }\n\n bolaState.lastSegmentStart = start;\n bolaState.lastSegmentDurationS = e.chunk.duration;\n bolaState.lastQuality = e.chunk.quality;\n\n checkNewSegment(bolaState, e.chunk.mediaInfo.type);\n }\n }\n }\n\n function onMetricAdded(e) {\n if (e && e.metric === MetricsConstants.HTTP_REQUEST && e.value && e.value.type === HTTPRequest.MEDIA_SEGMENT_TYPE && e.value.trace && e.value.trace.length) {\n const bolaState = bolaStateDict[e.mediaType];\n if (bolaState && bolaState.state !== BOLA_STATE_ONE_BITRATE) {\n bolaState.lastSegmentRequestTimeMs = e.value.trequest.getTime();\n bolaState.lastSegmentFinishTimeMs = e.value._tfinish.getTime();\n\n checkNewSegment(bolaState, e.mediaType);\n }\n }\n }\n\n /*\n * When a new segment is downloaded, we get two notifications: onMediaFragmentLoaded() and onMetricAdded(). It is\n * possible that the quality for the downloaded segment was lower (not higher) than the quality indicated by BOLA.\n * This might happen because of other rules such as the DroppedFramesRule. When this happens, we trim the\n * placeholder buffer to make BOLA more stable. This mechanism also avoids inflating the buffer when BOLA itself\n * decides not to increase the quality to avoid oscillations.\n *\n * We should also check for replacement segments (fast switching). In this case, a segment is downloaded but does\n * not grow the actual buffer. Fast switching might cause the buffer to deplete, causing BOLA to drop the bitrate.\n * We avoid this by growing the placeholder buffer.\n */\n function checkNewSegment(bolaState, mediaType) {\n if (!isNaN(bolaState.lastSegmentStart) && !isNaN(bolaState.lastSegmentRequestTimeMs) && !isNaN(bolaState.placeholderBuffer)) {\n bolaState.placeholderBuffer *= PLACEHOLDER_BUFFER_DECAY;\n\n // Find what maximum buffer corresponding to last segment was, and ensure placeholder is not relatively larger.\n if (!isNaN(bolaState.lastSegmentFinishTimeMs)) {\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n const bufferAtLastSegmentRequest = bufferLevel + 0.001 * (bolaState.lastSegmentFinishTimeMs - bolaState.lastSegmentRequestTimeMs); // estimate\n const maxEffectiveBufferForLastSegment = maxBufferLevelForQuality(bolaState, bolaState.lastQuality);\n const maxPlaceholderBuffer = Math.max(0, maxEffectiveBufferForLastSegment - bufferAtLastSegmentRequest);\n bolaState.placeholderBuffer = Math.min(maxPlaceholderBuffer, bolaState.placeholderBuffer);\n }\n\n // then see if we should grow placeholder buffer\n\n if (bolaState.lastSegmentWasReplacement && !isNaN(bolaState.lastSegmentDurationS)) {\n // compensate for segments that were downloaded but did not grow the buffer\n bolaState.placeholderBuffer += bolaState.lastSegmentDurationS;\n }\n\n bolaState.lastSegmentStart = NaN;\n bolaState.lastSegmentRequestTimeMs = NaN;\n }\n }\n\n function onQualityChangeRequested(e) {\n // Useful to store change requests when abandoning a download.\n if (e) {\n const bolaState = bolaStateDict[e.mediaType];\n if (bolaState && bolaState.state !== BOLA_STATE_ONE_BITRATE) {\n bolaState.abrQuality = e.newQuality;\n }\n }\n }\n\n function onFragmentLoadingAbandoned(e) {\n if (e) {\n const bolaState = bolaStateDict[e.mediaType];\n if (bolaState && bolaState.state !== BOLA_STATE_ONE_BITRATE) {\n // deflate placeholderBuffer - note that we want to be conservative when abandoning\n const bufferLevel = dashMetrics.getCurrentBufferLevel(e.mediaType);\n let wantEffectiveBufferLevel;\n if (bolaState.abrQuality > 0) {\n // deflate to point where BOLA just chooses newQuality over newQuality-1\n wantEffectiveBufferLevel = minBufferLevelForQuality(bolaState, bolaState.abrQuality);\n } else {\n wantEffectiveBufferLevel = MINIMUM_BUFFER_S;\n }\n const maxPlaceholderBuffer = Math.max(0, wantEffectiveBufferLevel - bufferLevel);\n bolaState.placeholderBuffer = Math.min(bolaState.placeholderBuffer, maxPlaceholderBuffer);\n }\n }\n }\n\n function getMaxIndex(rulesContext) {\n const switchRequest = SwitchRequest(context).create();\n\n if (!rulesContext || !rulesContext.hasOwnProperty('getMediaInfo') || !rulesContext.hasOwnProperty('getMediaType') ||\n !rulesContext.hasOwnProperty('getScheduleController') || !rulesContext.hasOwnProperty('getStreamInfo') ||\n !rulesContext.hasOwnProperty('getAbrController') || !rulesContext.hasOwnProperty('useBufferOccupancyABR')) {\n return switchRequest;\n }\n const mediaInfo = rulesContext.getMediaInfo();\n const mediaType = rulesContext.getMediaType();\n const scheduleController = rulesContext.getScheduleController();\n const streamInfo = rulesContext.getStreamInfo();\n const abrController = rulesContext.getAbrController();\n const throughputHistory = abrController.getThroughputHistory();\n const streamId = streamInfo ? streamInfo.id : null;\n const isDynamic = streamInfo && streamInfo.manifestInfo && streamInfo.manifestInfo.isDynamic;\n const useBufferOccupancyABR = rulesContext.useBufferOccupancyABR();\n switchRequest.reason = switchRequest.reason || {};\n\n if (!useBufferOccupancyABR) {\n return switchRequest;\n }\n\n scheduleController.setTimeToLoadDelay(0);\n\n const bolaState = getBolaState(rulesContext);\n\n if (bolaState.state === BOLA_STATE_ONE_BITRATE) {\n // shouldn't even have been called\n return switchRequest;\n }\n\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n const throughput = throughputHistory.getAverageThroughput(mediaType, isDynamic);\n const safeThroughput = throughputHistory.getSafeAverageThroughput(mediaType, isDynamic);\n const latency = throughputHistory.getAverageLatency(mediaType);\n let quality;\n\n switchRequest.reason.state = bolaState.state;\n switchRequest.reason.throughput = throughput;\n switchRequest.reason.latency = latency;\n\n if (isNaN(throughput)) { // isNaN(throughput) === isNaN(safeThroughput) === isNaN(latency)\n // still starting up - not enough information\n return switchRequest;\n }\n\n switch (bolaState.state) {\n case BOLA_STATE_STARTUP:\n quality = abrController.getQualityForBitrate(mediaInfo, safeThroughput, latency);\n\n switchRequest.quality = quality;\n switchRequest.reason.throughput = safeThroughput;\n\n bolaState.placeholderBuffer = Math.max(0, minBufferLevelForQuality(bolaState, quality) - bufferLevel);\n bolaState.lastQuality = quality;\n\n if (!isNaN(bolaState.lastSegmentDurationS) && bufferLevel >= bolaState.lastSegmentDurationS) {\n bolaState.state = BOLA_STATE_STEADY;\n }\n\n break; // BOLA_STATE_STARTUP\n\n case BOLA_STATE_STEADY:\n\n // NB: The placeholder buffer is added to bufferLevel to come up with a bitrate.\n // This might lead BOLA to be too optimistic and to choose a bitrate that would lead to rebuffering -\n // if the real buffer bufferLevel runs out, the placeholder buffer cannot prevent rebuffering.\n // However, the InsufficientBufferRule takes care of this scenario.\n\n updatePlaceholderBuffer(bolaState, mediaType);\n\n quality = getQualityFromBufferLevel(bolaState, bufferLevel + bolaState.placeholderBuffer);\n\n // we want to avoid oscillations\n // We implement the \"BOLA-O\" variant: when network bandwidth lies between two encoded bitrate levels, stick to the lowest level.\n const qualityForThroughput = abrController.getQualityForBitrate(mediaInfo, safeThroughput, latency);\n if (quality > bolaState.lastQuality && quality > qualityForThroughput) {\n // only intervene if we are trying to *increase* quality to an *unsustainable* level\n // we are only avoid oscillations - do not drop below last quality\n\n quality = Math.max(qualityForThroughput, bolaState.lastQuality);\n }\n\n // We do not want to overfill buffer with low quality chunks.\n // Note that there will be no delay if buffer level is below MINIMUM_BUFFER_S, probably even with some margin higher than MINIMUM_BUFFER_S.\n let delayS = Math.max(0, bufferLevel + bolaState.placeholderBuffer - maxBufferLevelForQuality(bolaState, quality));\n\n // First reduce placeholder buffer, then tell schedule controller to pause.\n if (delayS <= bolaState.placeholderBuffer) {\n bolaState.placeholderBuffer -= delayS;\n delayS = 0;\n } else {\n delayS -= bolaState.placeholderBuffer;\n bolaState.placeholderBuffer = 0;\n\n if (quality < abrController.getTopQualityIndexFor(mediaType, streamId)) {\n // At top quality, allow schedule controller to decide how far to fill buffer.\n scheduleController.setTimeToLoadDelay(1000 * delayS);\n } else {\n delayS = 0;\n }\n }\n\n switchRequest.quality = quality;\n switchRequest.reason.throughput = throughput;\n switchRequest.reason.latency = latency;\n switchRequest.reason.bufferLevel = bufferLevel;\n switchRequest.reason.placeholderBuffer = bolaState.placeholderBuffer;\n switchRequest.reason.delay = delayS;\n\n bolaState.lastQuality = quality;\n // keep bolaState.state === BOLA_STATE_STEADY\n\n break; // BOLA_STATE_STEADY\n\n default:\n logger.debug('BOLA ABR rule invoked in bad state.');\n // should not arrive here, try to recover\n switchRequest.quality = abrController.getQualityForBitrate(mediaInfo, safeThroughput, latency);\n switchRequest.reason.state = bolaState.state;\n switchRequest.reason.throughput = safeThroughput;\n switchRequest.reason.latency = latency;\n bolaState.state = BOLA_STATE_STARTUP;\n clearBolaStateOnSeek(bolaState);\n }\n\n return switchRequest;\n }\n\n function resetInitialSettings() {\n bolaStateDict = {};\n }\n\n function reset() {\n resetInitialSettings();\n\n eventBus.off(Events.BUFFER_EMPTY, onBufferEmpty, instance);\n eventBus.off(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.off(Events.MEDIA_FRAGMENT_LOADED, onMediaFragmentLoaded, instance);\n eventBus.off(Events.METRIC_ADDED, onMetricAdded, instance);\n eventBus.off(Events.QUALITY_CHANGE_REQUESTED, onQualityChangeRequested, instance);\n eventBus.off(Events.FRAGMENT_LOADING_ABANDONED, onFragmentLoadingAbandoned, instance);\n }\n\n instance = {\n getMaxIndex: getMaxIndex,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nBolaRule.__dashjs_factory_name = 'BolaRule';\nexport default FactoryMaker.getClassFactory(BolaRule);\n",
"\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport SwitchRequest from '../SwitchRequest';\nimport Debug from '../../../core/Debug';\n\nfunction DroppedFramesRule() {\n\n const context = this.context;\n let instance,\n logger;\n\n const DROPPED_PERCENTAGE_FORBID = 0.15;\n const GOOD_SAMPLE_SIZE = 375; //Don't apply the rule until this many frames have been rendered(and counted under those indices).\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function getMaxIndex(rulesContext) {\n const switchRequest = SwitchRequest(context).create();\n\n if (!rulesContext || !rulesContext.hasOwnProperty('getDroppedFramesHistory')) {\n return switchRequest;\n }\n const droppedFramesHistory = rulesContext.getDroppedFramesHistory();\n if (droppedFramesHistory) {\n const dfh = droppedFramesHistory.getFrameHistory();\n let droppedFrames = 0;\n let totalFrames = 0;\n let maxIndex = SwitchRequest.NO_CHANGE;\n for (let i = 1; i < dfh.length; i++) { //No point in measuring dropped frames for the zeroeth index.\n if (dfh[i]) {\n droppedFrames = dfh[i].droppedVideoFrames;\n totalFrames = dfh[i].totalVideoFrames;\n\n if (totalFrames > GOOD_SAMPLE_SIZE && droppedFrames / totalFrames > DROPPED_PERCENTAGE_FORBID) {\n maxIndex = i - 1;\n logger.debug('index: ' + maxIndex + ' Dropped Frames: ' + droppedFrames + ' Total Frames: ' + totalFrames);\n break;\n }\n }\n }\n return SwitchRequest(context).create(maxIndex, {droppedFrames: droppedFrames});\n }\n\n return switchRequest;\n }\n\n instance = {\n getMaxIndex: getMaxIndex\n };\n\n setup();\n\n return instance;\n}\n\nDroppedFramesRule.__dashjs_factory_name = 'DroppedFramesRule';\nexport default FactoryMaker.getClassFactory(DroppedFramesRule);",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport EventBus from '../../../core/EventBus';\nimport Events from '../../../core/events/Events';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport Debug from '../../../core/Debug';\nimport SwitchRequest from '../SwitchRequest';\nimport Constants from '../../constants/Constants';\nimport MetricsConstants from '../../constants/MetricsConstants';\n\nfunction InsufficientBufferRule(config) {\n\n config = config || {};\n const INSUFFICIENT_BUFFER_SAFETY_FACTOR = 0.5;\n const SEGMENT_IGNORE_COUNT = 2;\n\n const context = this.context;\n\n const eventBus = EventBus(context).getInstance();\n const dashMetrics = config.dashMetrics;\n\n let instance,\n logger,\n bufferStateDict;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n resetInitialSettings();\n eventBus.on(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.on(Events.BYTES_APPENDED_END_FRAGMENT, onEndFragment, instance);\n }\n\n function checkConfig() {\n if (!dashMetrics || !dashMetrics.hasOwnProperty('getCurrentBufferLevel') || !dashMetrics.hasOwnProperty('getCurrentBufferState')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n /*\n * InsufficientBufferRule does not kick in before the first BUFFER_LOADED event happens. This is reset at every seek.\n *\n * If a BUFFER_EMPTY event happens, then InsufficientBufferRule returns switchRequest.quality=0 until BUFFER_LOADED happens.\n *\n * Otherwise InsufficientBufferRule gives a maximum bitrate depending on throughput and bufferLevel such that\n * a whole fragment can be downloaded before the buffer runs out, subject to a conservative safety factor of 0.5.\n * If the bufferLevel is low, then InsufficientBufferRule avoids rebuffering risk.\n * If the bufferLevel is high, then InsufficientBufferRule give a high MaxIndex allowing other rules to take over.\n */\n function getMaxIndex(rulesContext) {\n const switchRequest = SwitchRequest(context).create();\n\n if (!rulesContext || !rulesContext.hasOwnProperty('getMediaType')) {\n return switchRequest;\n }\n\n checkConfig();\n\n const mediaType = rulesContext.getMediaType();\n const currentBufferState = dashMetrics.getCurrentBufferState(mediaType);\n const representationInfo = rulesContext.getRepresentationInfo();\n const fragmentDuration = representationInfo.fragmentDuration;\n\n // Don't ask for a bitrate change if there is not info about buffer state or if fragmentDuration is not defined\n if (shouldIgnore(mediaType) || !fragmentDuration) {\n return switchRequest;\n }\n\n if (currentBufferState && currentBufferState.state === MetricsConstants.BUFFER_EMPTY) {\n logger.debug('[' + mediaType + '] Switch to index 0; buffer is empty.');\n switchRequest.quality = 0;\n switchRequest.reason = 'InsufficientBufferRule: Buffer is empty';\n } else {\n const mediaInfo = rulesContext.getMediaInfo();\n const abrController = rulesContext.getAbrController();\n const throughputHistory = abrController.getThroughputHistory();\n\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType);\n const throughput = throughputHistory.getAverageThroughput(mediaType);\n const latency = throughputHistory.getAverageLatency(mediaType);\n const bitrate = throughput * (bufferLevel / fragmentDuration) * INSUFFICIENT_BUFFER_SAFETY_FACTOR;\n\n switchRequest.quality = abrController.getQualityForBitrate(mediaInfo, bitrate, latency);\n switchRequest.reason = 'InsufficientBufferRule: being conservative to avoid immediate rebuffering';\n }\n\n return switchRequest;\n }\n\n function shouldIgnore(mediaType) {\n return bufferStateDict[mediaType].ignoreCount > 0;\n }\n\n function resetInitialSettings() {\n bufferStateDict = {};\n bufferStateDict[Constants.VIDEO] = {ignoreCount: SEGMENT_IGNORE_COUNT};\n bufferStateDict[Constants.AUDIO] = {ignoreCount: SEGMENT_IGNORE_COUNT};\n }\n\n function onPlaybackSeeking() {\n resetInitialSettings();\n }\n\n function onEndFragment(e) {\n if (!isNaN(e.startTime) && (e.mediaType === Constants.AUDIO || e.mediaType === Constants.VIDEO)) {\n if (bufferStateDict[e.mediaType].ignoreCount > 0) {\n bufferStateDict[e.mediaType].ignoreCount--;\n }\n }\n }\n\n function reset() {\n resetInitialSettings();\n eventBus.off(Events.PLAYBACK_SEEKING, onPlaybackSeeking, instance);\n eventBus.off(Events.BYTES_APPENDED_END_FRAGMENT, onEndFragment, instance);\n }\n\n instance = {\n getMaxIndex: getMaxIndex,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nInsufficientBufferRule.__dashjs_factory_name = 'InsufficientBufferRule';\nexport default FactoryMaker.getClassFactory(InsufficientBufferRule);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2020, Unified Streaming.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n// For a description of the Learn2Adapt-LowLatency (L2A-LL) bitrate adaptation algorithm, see https://github.com/unifiedstreaming/Learn2Adapt-LowLatency/blob/master/Online_learning_for_bitrate_adaptation_in_low_latency_live_streaming_CR.pdf\n\nimport MetricsConstants from '../../constants/MetricsConstants';\nimport SwitchRequest from '../SwitchRequest';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport {HTTPRequest} from '../../vo/metrics/HTTPRequest';\nimport EventBus from '../../../core/EventBus';\nimport Events from '../../../core/events/Events';\nimport Debug from '../../../core/Debug';\nimport Constants from '../../constants/Constants';\n\nconst L2A_STATE_ONE_BITRATE = 0; // If there is only one bitrate (or initialization failed), always return NO_CHANGE.\nconst L2A_STATE_STARTUP = 1; // Set placeholder buffer such that we download fragments at most recently measured throughput.\nconst L2A_STATE_STEADY = 2; // Buffer primed, we switch to steady operation.\n\n\nfunction L2ARule(config) {\n config = config || {};\n const context = this.context;\n\n const dashMetrics = config.dashMetrics;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n l2AStateDict,\n l2AParameterDict,\n logger;\n\n /**\n * Setup function to initialize L2ARule\n */\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n _resetInitialSettings();\n\n eventBus.on(Events.PLAYBACK_SEEKING, _onPlaybackSeeking, instance);\n eventBus.on(Events.MEDIA_FRAGMENT_LOADED, _onMediaFragmentLoaded, instance);\n eventBus.on(Events.METRIC_ADDED, _onMetricAdded, instance);\n eventBus.on(Events.QUALITY_CHANGE_REQUESTED, _onQualityChangeRequested, instance);\n }\n\n /**\n * Sets the initial state of the algorithm. Calls the initialize function for the paramteters.\n * @param {object} rulesContext\n * @return {object} initialState\n * @private\n */\n function _getInitialL2AState(rulesContext) {\n const initialState = {};\n const mediaInfo = rulesContext.getMediaInfo();\n const bitrates = mediaInfo.bitrateList.map((b) => {\n return b.bandwidth / 1000;\n });\n\n initialState.state = L2A_STATE_STARTUP;\n initialState.bitrates = bitrates;\n initialState.lastQuality = 0;\n\n _initializeL2AParameters(mediaInfo);\n _clearL2AStateOnSeek(initialState);\n\n return initialState;\n }\n\n /**\n * Initializes the parameters of the algorithm. This will be done once for each media type.\n * @param {object} mediaInfo\n * @private\n */\n function _initializeL2AParameters(mediaInfo) {\n\n if (!mediaInfo || !mediaInfo.type) {\n return;\n }\n l2AParameterDict[mediaInfo.type] = {};\n l2AParameterDict[mediaInfo.type].w = []; //Vector of probabilities associated with bitrate decisions\n l2AParameterDict[mediaInfo.type].prev_w = []; //Vector of probabilities associated with bitrate decisions calculated in the previous step\n l2AParameterDict[mediaInfo.type].Q = 0; //Initialization of Lagrangian multiplier (This keeps track of the buffer displacement)\n l2AParameterDict[mediaInfo.type].segment_request_start_s = 0;\n l2AParameterDict[mediaInfo.type].segment_download_finish_s = 0;\n l2AParameterDict[mediaInfo.type].B_target = 1.5; //Target buffer level\n }\n\n\n /**\n * Clears the state object\n * @param {object} l2AState\n * @private\n */\n function _clearL2AStateOnSeek(l2AState) {\n l2AState.placeholderBuffer = 0;\n l2AState.mostAdvancedSegmentStart = NaN;\n l2AState.lastSegmentWasReplacement = false;\n l2AState.lastSegmentStart = NaN;\n l2AState.lastSegmentDurationS = NaN;\n l2AState.lastSegmentRequestTimeMs = NaN;\n l2AState.lastSegmentFinishTimeMs = NaN;\n }\n\n\n /**\n * Returns the state object for a fiven media type. If the state object is not yet defined _getInitialL2AState is called\n * @param {object} rulesContext\n * @return {object} l2AState\n * @private\n */\n function _getL2AState(rulesContext) {\n const mediaType = rulesContext.getMediaType();\n let l2AState = l2AStateDict[mediaType];\n\n if (!l2AState) {\n l2AState = _getInitialL2AState(rulesContext);\n l2AStateDict[mediaType] = l2AState;\n }\n\n return l2AState;\n }\n\n /**\n * Event handler for the seeking event.\n * @private\n */\n function _onPlaybackSeeking() {\n for (const mediaType in l2AStateDict) {\n if (l2AStateDict.hasOwnProperty(mediaType)) {\n const l2aState = l2AStateDict[mediaType];\n if (l2aState.state !== L2A_STATE_ONE_BITRATE) {\n l2aState.state = L2A_STATE_STARTUP;\n _clearL2AStateOnSeek(l2aState);\n }\n }\n }\n }\n\n /**\n * Event handler for the mediaFragmentLoaded event\n * @param {object} e\n * @private\n */\n function _onMediaFragmentLoaded(e) {\n if (e && e.chunk && e.chunk.mediaInfo) {\n const l2AState = l2AStateDict[e.chunk.mediaInfo.type];\n const l2AParameters = l2AParameterDict[e.chunk.mediaInfo.type];\n\n if (l2AState && l2AState.state !== L2A_STATE_ONE_BITRATE) {\n const start = e.chunk.start;\n if (isNaN(l2AState.mostAdvancedSegmentStart) || start > l2AState.mostAdvancedSegmentStart) {\n l2AState.mostAdvancedSegmentStart = start;\n l2AState.lastSegmentWasReplacement = false;\n } else {\n l2AState.lastSegmentWasReplacement = true;\n }\n\n l2AState.lastSegmentStart = start;\n l2AState.lastSegmentDurationS = e.chunk.duration;\n l2AState.lastQuality = e.chunk.quality;\n\n _checkNewSegment(l2AState, l2AParameters);\n }\n }\n }\n\n /**\n * Event handler for the metricAdded event\n * @param {object} e\n * @private\n */\n function _onMetricAdded(e) {\n if (e && e.metric === MetricsConstants.HTTP_REQUEST && e.value && e.value.type === HTTPRequest.MEDIA_SEGMENT_TYPE && e.value.trace && e.value.trace.length) {\n const l2AState = l2AStateDict[e.mediaType];\n const l2AParameters = l2AParameterDict[e.mediaType];\n\n if (l2AState && l2AState.state !== L2A_STATE_ONE_BITRATE) {\n l2AState.lastSegmentRequestTimeMs = e.value.trequest.getTime();\n l2AState.lastSegmentFinishTimeMs = e.value._tfinish.getTime();\n _checkNewSegment(l2AState, l2AParameters);\n }\n }\n }\n\n /**\n * When a new metric has been added or a media fragment has been loaded the state is adjusted accordingly\n * @param {object} L2AState\n * @param {object} l2AParameters\n * @private\n */\n function _checkNewSegment(L2AState, l2AParameters) {\n if (!isNaN(L2AState.lastSegmentStart) && !isNaN(L2AState.lastSegmentRequestTimeMs)) {\n l2AParameters.segment_request_start_s = 0.001 * L2AState.lastSegmentRequestTimeMs;\n l2AParameters.segment_download_finish_s = 0.001 * L2AState.lastSegmentFinishTimeMs;\n L2AState.lastSegmentStart = NaN;\n L2AState.lastSegmentRequestTimeMs = NaN;\n }\n }\n\n /**\n * Event handler for the qualityChangeRequested event\n * @param {object} e\n * @private\n */\n function _onQualityChangeRequested(e) {\n // Useful to store change requests when abandoning a download.\n if (e && e.mediaType) {\n const L2AState = l2AStateDict[e.mediaType];\n if (L2AState && L2AState.state !== L2A_STATE_ONE_BITRATE) {\n L2AState.abrQuality = e.newQuality;\n }\n }\n }\n\n /**\n * Dot multiplication of two arrays\n * @param {array} arr1\n * @param {array} arr2\n * @return {number} sumdot\n * @private\n */\n\n function _dotmultiplication(arr1, arr2) {\n if (arr1.length !== arr2.length) {\n return -1;\n }\n let sumdot = 0;\n for (let i = 0; i < arr1.length; i++) {\n sumdot = sumdot + arr1[i] * arr2[i];\n }\n return sumdot;\n }\n\n /**\n * Project an n-dim vector y to the simplex Dn\n * Dn = { x : x n-dim, 1 >= x >= 0, sum(x) = 1}\n * Algorithm is explained at http://arxiv.org/abs/1101.6081\n * @param {array} arr\n * @return {array}\n * @constructor\n */\n function euclideanProjection(arr) {\n const m = arr.length;\n let bget = false;\n let arr2 = [];\n for (let ii = 0; ii < m; ++ii) {\n arr2[ii] = arr[ii];\n }\n let s = arr.sort(function (a, b) {\n return b - a;\n });\n let tmpsum = 0;\n let tmax = 0;\n let x = [];\n for (let ii = 0; ii < m - 1; ++ii) {\n tmpsum = tmpsum + s[ii];\n tmax = (tmpsum - 1) / (ii + 1);\n if (tmax >= s[ii + 1]) {\n bget = true;\n break;\n }\n }\n if (!bget) {\n tmax = (tmpsum + s[m - 1] - 1) / m;\n }\n for (let ii = 0; ii < m; ++ii) {\n x[ii] = Math.max(arr2[ii] - tmax, 0);\n }\n return x;\n }\n\n /**\n * Returns a switch request object indicating which quality is to be played\n * @param {object} rulesContext\n * @return {object}\n */\n function getMaxIndex(rulesContext) {\n const switchRequest = SwitchRequest(context).create();\n const horizon = 4; // Optimization horizon (The amount of steps required to achieve convergence)\n const vl = Math.pow(horizon, 0.99);// Cautiousness parameter, used to control aggressiveness of the bitrate decision process.\n const alpha = Math.max(Math.pow(horizon, 1), vl * Math.sqrt(horizon));// Step size, used for gradient descent exploration granularity\n const mediaInfo = rulesContext.getMediaInfo();\n const mediaType = rulesContext.getMediaType();\n const bitrates = mediaInfo.bitrateList.map(b => b.bandwidth);\n const bitrateCount = bitrates.length;\n const scheduleController = rulesContext.getScheduleController();\n const streamInfo = rulesContext.getStreamInfo();\n const abrController = rulesContext.getAbrController();\n const throughputHistory = abrController.getThroughputHistory();\n const isDynamic = streamInfo && streamInfo.manifestInfo && streamInfo.manifestInfo.isDynamic;\n const useL2AABR = rulesContext.useL2AABR();\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType, true);\n const safeThroughput = throughputHistory.getSafeAverageThroughput(mediaType, isDynamic);\n const throughput = throughputHistory.getAverageThroughput(mediaType, isDynamic); // In kbits/s\n const react = 2; // Reactiveness to volatility (abrupt throughput drops), used to re-calibrate Lagrangian multiplier Q\n const latency = throughputHistory.getAverageLatency(mediaType);\n const videoModel = rulesContext.getVideoModel();\n let quality;\n let currentPlaybackRate = videoModel.getPlaybackRate();\n\n if (!rulesContext || !rulesContext.hasOwnProperty('getMediaInfo') || !rulesContext.hasOwnProperty('getMediaType') ||\n !rulesContext.hasOwnProperty('getScheduleController') || !rulesContext.hasOwnProperty('getStreamInfo') ||\n !rulesContext.hasOwnProperty('getAbrController') || !rulesContext.hasOwnProperty('useL2AABR')) {\n return switchRequest;\n }\n\n switchRequest.reason = switchRequest.reason || {};\n\n if ((!useL2AABR) || (mediaType === Constants.AUDIO)) {// L2A decides bitrate only for video. Audio to be included in decision process in a later stage\n return switchRequest;\n }\n\n scheduleController.setTimeToLoadDelay(0);\n\n const l2AState = _getL2AState(rulesContext);\n\n if (l2AState.state === L2A_STATE_ONE_BITRATE) {\n // shouldn't even have been called\n return switchRequest;\n }\n\n const l2AParameter = l2AParameterDict[mediaType];\n\n if (!l2AParameter) {\n return switchRequest;\n }\n\n switchRequest.reason.state = l2AState.state;\n switchRequest.reason.throughput = throughput;\n switchRequest.reason.latency = latency;\n\n if (isNaN(throughput)) {\n // still starting up - not enough information\n return switchRequest;\n }\n\n switch (l2AState.state) {\n case L2A_STATE_STARTUP:\n quality = abrController.getQualityForBitrate(mediaInfo, safeThroughput, latency);//During strat-up phase abr.controller is responsible for bitrate decisions.\n switchRequest.quality = quality;\n switchRequest.reason.throughput = safeThroughput;\n l2AState.lastQuality = quality;\n\n if (!isNaN(l2AState.lastSegmentDurationS) && bufferLevel >= l2AParameter.B_target) {\n l2AState.state = L2A_STATE_STEADY;\n l2AParameter.Q = vl;// Initialization of Q langrangian multiplier\n // Update of probability vector w, to be used in main adaptation logic of L2A below (steady state)\n for (let i = 0; i < bitrateCount; ++i) {\n if (i === l2AState.lastQuality) {\n l2AParameter.prev_w[i] = 1;\n } else {\n l2AParameter.prev_w[i] = 0;\n }\n }\n }\n\n break; // L2A_STATE_STARTUP\n case L2A_STATE_STEADY:\n let diff1 = [];//Used to calculate the difference between consecutive decisions (w-w_prev)\n\n // Manual calculation of latency and throughput during previous request\n let throughputMeasureTime = dashMetrics.getCurrentHttpRequest(mediaType).trace.reduce((a, b) => a + b.d, 0);\n const downloadBytes = dashMetrics.getCurrentHttpRequest(mediaType).trace.reduce((a, b) => a + b.b[0], 0);\n let lastthroughput = Math.round((8 * downloadBytes) / throughputMeasureTime); // bits/ms = kbits/s\n\n if (lastthroughput < 1) {\n lastthroughput = 1;\n }//To avoid division with 0 (avoid infinity) in case of an absolute network outage\n\n let V = l2AState.lastSegmentDurationS;\n let sign = 1;\n\n //Main adaptation logic of L2A-LL\n for (let i = 0; i < bitrateCount; ++i) {\n bitrates[i] = bitrates[i] / 1000; // Originally in bps, now in Kbps\n if (currentPlaybackRate * bitrates[i] > lastthroughput) {// In this case buffer would deplete, leading to a stall, which increases latency and thus the particular probability of selsection of bitrate[i] should be decreased.\n sign = -1;\n }\n // The objective of L2A is to minimize the overall latency=request-response time + buffer length after download+ potential stalling (if buffer less than chunk downlad time)\n l2AParameter.w[i] = l2AParameter.prev_w[i] + sign * (V / (2 * alpha)) * ((l2AParameter.Q + vl) * (currentPlaybackRate * bitrates[i] / lastthroughput));//Lagrangian descent\n }\n\n // Apply euclidean projection on w to ensure w expresses a probability distribution\n l2AParameter.w = euclideanProjection(l2AParameter.w);\n\n for (let i = 0; i < bitrateCount; ++i) {\n diff1[i] = l2AParameter.w[i] - l2AParameter.prev_w[i];\n l2AParameter.prev_w[i] = l2AParameter.w[i];\n }\n\n // Lagrangian multiplier Q calculation:\n l2AParameter.Q = Math.max(0, l2AParameter.Q - V + V * currentPlaybackRate * ((_dotmultiplication(bitrates, l2AParameter.prev_w) + _dotmultiplication(bitrates, diff1)) / lastthroughput));\n\n // Quality is calculated as argmin of the absolute difference between available bitrates (bitrates[i]) and bitrate estimation (dotmultiplication(w,bitrates)).\n let temp = [];\n for (let i = 0; i < bitrateCount; ++i) {\n temp[i] = Math.abs(bitrates[i] - _dotmultiplication(l2AParameter.w, bitrates));\n }\n\n // Quality is calculated based on the probability distribution w (the output of L2A)\n quality = temp.indexOf(Math.min(...temp));\n\n // We employ a cautious -stepwise- ascent\n if (quality > l2AState.lastQuality) {\n if (bitrates[l2AState.lastQuality + 1] <= lastthroughput) {\n quality = l2AState.lastQuality + 1;\n }\n }\n\n // Provision against bitrate over-estimation, by re-calibrating the Lagrangian multiplier Q, to be taken into account for the next chunk\n if (bitrates[quality] >= lastthroughput) {\n l2AParameter.Q = react * Math.max(vl, l2AParameter.Q);\n }\n\n switchRequest.quality = quality;\n switchRequest.reason.throughput = throughput;\n switchRequest.reason.latency = latency;\n switchRequest.reason.bufferLevel = bufferLevel;\n l2AState.lastQuality = switchRequest.quality;\n break;\n default:\n // should not arrive here, try to recover\n logger.debug('L2A ABR rule invoked in bad state.');\n switchRequest.quality = abrController.getQualityForBitrate(mediaInfo, safeThroughput, latency);\n switchRequest.reason.state = l2AState.state;\n switchRequest.reason.throughput = safeThroughput;\n switchRequest.reason.latency = latency;\n l2AState.state = L2A_STATE_STARTUP;\n _clearL2AStateOnSeek(l2AState);\n }\n return switchRequest;\n }\n\n /**\n * Reset objects to their initial state\n * @private\n */\n function _resetInitialSettings() {\n l2AStateDict = {};\n l2AParameterDict = {};\n }\n\n /**\n * Reset the rule\n */\n function reset() {\n _resetInitialSettings();\n eventBus.off(Events.PLAYBACK_SEEKING, _onPlaybackSeeking, instance);\n eventBus.off(Events.MEDIA_FRAGMENT_LOADED, _onMediaFragmentLoaded, instance);\n eventBus.off(Events.METRIC_ADDED, _onMetricAdded, instance);\n eventBus.off(Events.QUALITY_CHANGE_REQUESTED, _onQualityChangeRequested, instance);\n }\n\n instance = {\n getMaxIndex: getMaxIndex,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nL2ARule.__dashjs_factory_name = 'L2ARule';\nexport default FactoryMaker.getClassFactory(L2ARule);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2020, Unified Streaming.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n// For a description of the Learn2Adapt-LowLatency (L2A-LL) bitrate adaptation algorithm, see https://github.com/unifiedstreaming/Learn2Adapt-LowLatency/blob/master/Online_learning_for_bitrate_adaptation_in_low_latency_live_streaming_CR.pdf\n\nimport MetricsConstants from '../../constants/MetricsConstants';\nimport SwitchRequest from '../SwitchRequest';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport {HTTPRequest} from '../../vo/metrics/HTTPRequest';\nimport EventBus from '../../../core/EventBus';\nimport Events from '../../../core/events/Events';\nimport Debug from '../../../core/Debug';\nimport Constants from '../../constants/Constants';\n\nconst L2A_STATE_ONE_BITRATE = 0; // If there is only one bitrate (or initialization failed), always return NO_CHANGE.\nconst L2A_STATE_STARTUP = 1; // Set placeholder buffer such that we download fragments at most recently measured throughput.\nconst L2A_STATE_STEADY = 2; // Buffer primed, we switch to steady operation.\n\n\nfunction L2ARule(config) {\n config = config || {};\n const context = this.context;\n\n const dashMetrics = config.dashMetrics;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n l2AStateDict,\n l2AParameterDict,\n logger;\n\n /**\n * Setup function to initialize L2ARule\n */\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n _resetInitialSettings();\n\n eventBus.on(Events.PLAYBACK_SEEKING, _onPlaybackSeeking, instance);\n eventBus.on(Events.MEDIA_FRAGMENT_LOADED, _onMediaFragmentLoaded, instance);\n eventBus.on(Events.METRIC_ADDED, _onMetricAdded, instance);\n eventBus.on(Events.QUALITY_CHANGE_REQUESTED, _onQualityChangeRequested, instance);\n }\n\n /**\n * Sets the initial state of the algorithm. Calls the initialize function for the paramteters.\n * @param {object} rulesContext\n * @return {object} initialState\n * @private\n */\n function _getInitialL2AState(rulesContext) {\n const initialState = {};\n const mediaInfo = rulesContext.getMediaInfo();\n const bitrates = mediaInfo.bitrateList.map((b) => {\n return b.bandwidth / 1000;\n });\n\n initialState.state = L2A_STATE_STARTUP;\n initialState.bitrates = bitrates;\n initialState.lastQuality = 0;\n\n _initializeL2AParameters(mediaInfo);\n _clearL2AStateOnSeek(initialState);\n\n return initialState;\n }\n\n /**\n * Initializes the parameters of the algorithm. This will be done once for each media type.\n * @param {object} mediaInfo\n * @private\n */\n function _initializeL2AParameters(mediaInfo) {\n\n if (!mediaInfo || !mediaInfo.type) {\n return;\n }\n l2AParameterDict[mediaInfo.type] = {};\n l2AParameterDict[mediaInfo.type].w = []; //Vector of probabilities associated with bitrate decisions\n l2AParameterDict[mediaInfo.type].prev_w = []; //Vector of probabilities associated with bitrate decisions calculated in the previous step\n l2AParameterDict[mediaInfo.type].Q = 0; //Initialization of Lagrangian multiplier (This keeps track of the buffer displacement)\n l2AParameterDict[mediaInfo.type].segment_request_start_s = 0;\n l2AParameterDict[mediaInfo.type].segment_download_finish_s = 0;\n l2AParameterDict[mediaInfo.type].B_target = 1.5; //Target buffer level\n }\n\n\n /**\n * Clears the state object\n * @param {object} l2AState\n * @private\n */\n function _clearL2AStateOnSeek(l2AState) {\n l2AState.placeholderBuffer = 0;\n l2AState.mostAdvancedSegmentStart = NaN;\n l2AState.lastSegmentWasReplacement = false;\n l2AState.lastSegmentStart = NaN;\n l2AState.lastSegmentDurationS = NaN;\n l2AState.lastSegmentRequestTimeMs = NaN;\n l2AState.lastSegmentFinishTimeMs = NaN;\n }\n\n\n /**\n * Returns the state object for a fiven media type. If the state object is not yet defined _getInitialL2AState is called\n * @param {object} rulesContext\n * @return {object} l2AState\n * @private\n */\n function _getL2AState(rulesContext) {\n const mediaType = rulesContext.getMediaType();\n let l2AState = l2AStateDict[mediaType];\n\n if (!l2AState) {\n l2AState = _getInitialL2AState(rulesContext);\n l2AStateDict[mediaType] = l2AState;\n }\n\n return l2AState;\n }\n\n /**\n * Event handler for the seeking event.\n * @private\n */\n function _onPlaybackSeeking() {\n for (const mediaType in l2AStateDict) {\n if (l2AStateDict.hasOwnProperty(mediaType)) {\n const l2aState = l2AStateDict[mediaType];\n if (l2aState.state !== L2A_STATE_ONE_BITRATE) {\n l2aState.state = L2A_STATE_STARTUP;\n _clearL2AStateOnSeek(l2aState);\n }\n }\n }\n }\n\n /**\n * Event handler for the mediaFragmentLoaded event\n * @param {object} e\n * @private\n */\n function _onMediaFragmentLoaded(e) {\n if (e && e.chunk && e.chunk.mediaInfo) {\n const l2AState = l2AStateDict[e.chunk.mediaInfo.type];\n const l2AParameters = l2AParameterDict[e.chunk.mediaInfo.type];\n\n if (l2AState && l2AState.state !== L2A_STATE_ONE_BITRATE) {\n const start = e.chunk.start;\n if (isNaN(l2AState.mostAdvancedSegmentStart) || start > l2AState.mostAdvancedSegmentStart) {\n l2AState.mostAdvancedSegmentStart = start;\n l2AState.lastSegmentWasReplacement = false;\n } else {\n l2AState.lastSegmentWasReplacement = true;\n }\n\n l2AState.lastSegmentStart = start;\n l2AState.lastSegmentDurationS = e.chunk.duration;\n l2AState.lastQuality = e.chunk.quality;\n\n _checkNewSegment(l2AState, l2AParameters);\n }\n }\n }\n\n /**\n * Event handler for the metricAdded event\n * @param {object} e\n * @private\n */\n function _onMetricAdded(e) {\n if (e && e.metric === MetricsConstants.HTTP_REQUEST && e.value && e.value.type === HTTPRequest.MEDIA_SEGMENT_TYPE && e.value.trace && e.value.trace.length) {\n const l2AState = l2AStateDict[e.mediaType];\n const l2AParameters = l2AParameterDict[e.mediaType];\n\n if (l2AState && l2AState.state !== L2A_STATE_ONE_BITRATE) {\n l2AState.lastSegmentRequestTimeMs = e.value.trequest.getTime();\n l2AState.lastSegmentFinishTimeMs = e.value._tfinish.getTime();\n _checkNewSegment(l2AState, l2AParameters);\n }\n }\n }\n\n /**\n * When a new metric has been added or a media fragment has been loaded the state is adjusted accordingly\n * @param {object} L2AState\n * @param {object} l2AParameters\n * @private\n */\n function _checkNewSegment(L2AState, l2AParameters) {\n if (!isNaN(L2AState.lastSegmentStart) && !isNaN(L2AState.lastSegmentRequestTimeMs)) {\n l2AParameters.segment_request_start_s = 0.001 * L2AState.lastSegmentRequestTimeMs;\n l2AParameters.segment_download_finish_s = 0.001 * L2AState.lastSegmentFinishTimeMs;\n L2AState.lastSegmentStart = NaN;\n L2AState.lastSegmentRequestTimeMs = NaN;\n }\n }\n\n /**\n * Event handler for the qualityChangeRequested event\n * @param {object} e\n * @private\n */\n function _onQualityChangeRequested(e) {\n // Useful to store change requests when abandoning a download.\n if (e && e.mediaType) {\n const L2AState = l2AStateDict[e.mediaType];\n if (L2AState && L2AState.state !== L2A_STATE_ONE_BITRATE) {\n L2AState.abrQuality = e.newQuality;\n }\n }\n }\n\n /**\n * Dot multiplication of two arrays\n * @param {array} arr1\n * @param {array} arr2\n * @return {number} sumdot\n * @private\n */\n\n function _dotmultiplication(arr1, arr2) {\n if (arr1.length !== arr2.length) {\n return -1;\n }\n let sumdot = 0;\n for (let i = 0; i < arr1.length; i++) {\n sumdot = sumdot + arr1[i] * arr2[i];\n }\n return sumdot;\n }\n\n /**\n * Project an n-dim vector y to the simplex Dn\n * Dn = { x : x n-dim, 1 >= x >= 0, sum(x) = 1}\n * Algorithm is explained at http://arxiv.org/abs/1101.6081\n * @param {array} arr\n * @return {array}\n */\n function euclideanProjection(arr) {\n const m = arr.length;\n let bget = false;\n let arr2 = [];\n for (let ii = 0; ii < m; ++ii) {\n arr2[ii] = arr[ii];\n }\n let s = arr.sort(function (a, b) {\n return b - a;\n });\n let tmpsum = 0;\n let tmax = 0;\n let x = [];\n for (let ii = 0; ii < m - 1; ++ii) {\n tmpsum = tmpsum + s[ii];\n tmax = (tmpsum - 1) / (ii + 1);\n if (tmax >= s[ii + 1]) {\n bget = true;\n break;\n }\n }\n if (!bget) {\n tmax = (tmpsum + s[m - 1] - 1) / m;\n }\n for (let ii = 0; ii < m; ++ii) {\n x[ii] = Math.max(arr2[ii] - tmax, 0);\n }\n return x;\n }\n\n /**\n * Returns a switch request object indicating which quality is to be played\n * @param {object} rulesContext\n * @return {object}\n */\n function getMaxIndex(rulesContext) {\n const switchRequest = SwitchRequest(context).create();\n const horizon = 4; // Optimization horizon (The amount of steps required to achieve convergence)\n const vl = Math.pow(horizon, 0.99);// Cautiousness parameter, used to control aggressiveness of the bitrate decision process.\n const alpha = Math.max(Math.pow(horizon, 1), vl * Math.sqrt(horizon));// Step size, used for gradient descent exploration granularity\n const mediaInfo = rulesContext.getMediaInfo();\n const mediaType = rulesContext.getMediaType();\n const bitrates = mediaInfo.bitrateList.map(b => b.bandwidth);\n const bitrateCount = bitrates.length;\n const scheduleController = rulesContext.getScheduleController();\n const streamInfo = rulesContext.getStreamInfo();\n const abrController = rulesContext.getAbrController();\n const throughputHistory = abrController.getThroughputHistory();\n const isDynamic = streamInfo && streamInfo.manifestInfo && streamInfo.manifestInfo.isDynamic;\n const useL2AABR = rulesContext.useL2AABR();\n const bufferLevel = dashMetrics.getCurrentBufferLevel(mediaType, true);\n const safeThroughput = throughputHistory.getSafeAverageThroughput(mediaType, isDynamic);\n const throughput = throughputHistory.getAverageThroughput(mediaType, isDynamic); // In kbits/s\n const react = 2; // Reactiveness to volatility (abrupt throughput drops), used to re-calibrate Lagrangian multiplier Q\n const latency = throughputHistory.getAverageLatency(mediaType);\n const videoModel = rulesContext.getVideoModel();\n let quality;\n let currentPlaybackRate = videoModel.getPlaybackRate();\n\n if (!rulesContext || !rulesContext.hasOwnProperty('getMediaInfo') || !rulesContext.hasOwnProperty('getMediaType') ||\n !rulesContext.hasOwnProperty('getScheduleController') || !rulesContext.hasOwnProperty('getStreamInfo') ||\n !rulesContext.hasOwnProperty('getAbrController') || !rulesContext.hasOwnProperty('useL2AABR')) {\n return switchRequest;\n }\n\n switchRequest.reason = switchRequest.reason || {};\n\n if ((!useL2AABR) || (mediaType === Constants.AUDIO)) {// L2A decides bitrate only for video. Audio to be included in decision process in a later stage\n return switchRequest;\n }\n\n scheduleController.setTimeToLoadDelay(0);\n\n const l2AState = _getL2AState(rulesContext);\n\n if (l2AState.state === L2A_STATE_ONE_BITRATE) {\n // shouldn't even have been called\n return switchRequest;\n }\n\n const l2AParameter = l2AParameterDict[mediaType];\n\n if (!l2AParameter) {\n return switchRequest;\n }\n\n switchRequest.reason.state = l2AState.state;\n switchRequest.reason.throughput = throughput;\n switchRequest.reason.latency = latency;\n\n if (isNaN(throughput)) {\n // still starting up - not enough information\n return switchRequest;\n }\n\n switch (l2AState.state) {\n case L2A_STATE_STARTUP:\n quality = abrController.getQualityForBitrate(mediaInfo, safeThroughput, latency);//During strat-up phase abr.controller is responsible for bitrate decisions.\n switchRequest.quality = quality;\n switchRequest.reason.throughput = safeThroughput;\n l2AState.lastQuality = quality;\n\n if (!isNaN(l2AState.lastSegmentDurationS) && bufferLevel >= l2AParameter.B_target) {\n l2AState.state = L2A_STATE_STEADY;\n l2AParameter.Q = vl;// Initialization of Q langrangian multiplier\n // Update of probability vector w, to be used in main adaptation logic of L2A below (steady state)\n for (let i = 0; i < bitrateCount; ++i) {\n if (i === l2AState.lastQuality) {\n l2AParameter.prev_w[i] = 1;\n } else {\n l2AParameter.prev_w[i] = 0;\n }\n }\n }\n\n break; // L2A_STATE_STARTUP\n case L2A_STATE_STEADY:\n let diff1 = [];//Used to calculate the difference between consecutive decisions (w-w_prev)\n\n // Manual calculation of latency and throughput during previous request\n let throughputMeasureTime = dashMetrics.getCurrentHttpRequest(mediaType).trace.reduce((a, b) => a + b.d, 0);\n const downloadBytes = dashMetrics.getCurrentHttpRequest(mediaType).trace.reduce((a, b) => a + b.b[0], 0);\n let lastthroughput = Math.round((8 * downloadBytes) / throughputMeasureTime); // bits/ms = kbits/s\n\n if (lastthroughput < 1) {\n lastthroughput = 1;\n }//To avoid division with 0 (avoid infinity) in case of an absolute network outage\n\n let V = l2AState.lastSegmentDurationS;\n let sign = 1;\n\n //Main adaptation logic of L2A-LL\n for (let i = 0; i < bitrateCount; ++i) {\n bitrates[i] = bitrates[i] / 1000; // Originally in bps, now in Kbps\n if (currentPlaybackRate * bitrates[i] > lastthroughput) {// In this case buffer would deplete, leading to a stall, which increases latency and thus the particular probability of selsection of bitrate[i] should be decreased.\n sign = -1;\n }\n // The objective of L2A is to minimize the overall latency=request-response time + buffer length after download+ potential stalling (if buffer less than chunk downlad time)\n l2AParameter.w[i] = l2AParameter.prev_w[i] + sign * (V / (2 * alpha)) * ((l2AParameter.Q + vl) * (currentPlaybackRate * bitrates[i] / lastthroughput));//Lagrangian descent\n }\n\n // Apply euclidean projection on w to ensure w expresses a probability distribution\n l2AParameter.w = euclideanProjection(l2AParameter.w);\n\n for (let i = 0; i < bitrateCount; ++i) {\n diff1[i] = l2AParameter.w[i] - l2AParameter.prev_w[i];\n l2AParameter.prev_w[i] = l2AParameter.w[i];\n }\n\n // Lagrangian multiplier Q calculation:\n l2AParameter.Q = Math.max(0, l2AParameter.Q - V + V * currentPlaybackRate * ((_dotmultiplication(bitrates, l2AParameter.prev_w) + _dotmultiplication(bitrates, diff1)) / lastthroughput));\n\n // Quality is calculated as argmin of the absolute difference between available bitrates (bitrates[i]) and bitrate estimation (dotmultiplication(w,bitrates)).\n let temp = [];\n for (let i = 0; i < bitrateCount; ++i) {\n temp[i] = Math.abs(bitrates[i] - _dotmultiplication(l2AParameter.w, bitrates));\n }\n\n // Quality is calculated based on the probability distribution w (the output of L2A)\n quality = temp.indexOf(Math.min(...temp));\n\n // We employ a cautious -stepwise- ascent\n if (quality > l2AState.lastQuality) {\n if (bitrates[l2AState.lastQuality + 1] <= lastthroughput) {\n quality = l2AState.lastQuality + 1;\n }\n }\n\n // Provision against bitrate over-estimation, by re-calibrating the Lagrangian multiplier Q, to be taken into account for the next chunk\n if (bitrates[quality] >= lastthroughput) {\n l2AParameter.Q = react * Math.max(vl, l2AParameter.Q);\n }\n\n switchRequest.quality = quality;\n switchRequest.reason.throughput = throughput;\n switchRequest.reason.latency = latency;\n switchRequest.reason.bufferLevel = bufferLevel;\n l2AState.lastQuality = switchRequest.quality;\n break;\n default:\n // should not arrive here, try to recover\n logger.debug('L2A ABR rule invoked in bad state.');\n switchRequest.quality = abrController.getQualityForBitrate(mediaInfo, safeThroughput, latency);\n switchRequest.reason.state = l2AState.state;\n switchRequest.reason.throughput = safeThroughput;\n switchRequest.reason.latency = latency;\n l2AState.state = L2A_STATE_STARTUP;\n _clearL2AStateOnSeek(l2AState);\n }\n return switchRequest;\n }\n\n /**\n * Reset objects to their initial state\n * @private\n */\n function _resetInitialSettings() {\n l2AStateDict = {};\n l2AParameterDict = {};\n }\n\n /**\n * Reset the rule\n */\n function reset() {\n _resetInitialSettings();\n eventBus.off(Events.PLAYBACK_SEEKING, _onPlaybackSeeking, instance);\n eventBus.off(Events.MEDIA_FRAGMENT_LOADED, _onMediaFragmentLoaded, instance);\n eventBus.off(Events.METRIC_ADDED, _onMetricAdded, instance);\n eventBus.off(Events.QUALITY_CHANGE_REQUESTED, _onQualityChangeRequested, instance);\n }\n\n instance = {\n getMaxIndex: getMaxIndex,\n reset: reset\n };\n\n setup();\n return instance;\n}\n\nL2ARule.__dashjs_factory_name = 'L2ARule';\nexport default FactoryMaker.getClassFactory(L2ARule);\n",
"\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport Debug from '../../../core/Debug';\nimport SwitchRequest from '../SwitchRequest';\n\nfunction SwitchHistoryRule() {\n\n const context = this.context;\n\n let instance,\n logger;\n\n //MAX_SWITCH is the number of drops made. It doesn't consider the size of the drop.\n const MAX_SWITCH = 0.075;\n\n //Before this number of switch requests(no switch or actual), don't apply the rule.\n //must be < SwitchRequestHistory SWITCH_REQUEST_HISTORY_DEPTH to enable rule\n const SAMPLE_SIZE = 6;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function getMaxIndex(rulesContext) {\n const switchRequestHistory = rulesContext ? rulesContext.getSwitchHistory() : null;\n const switchRequests = switchRequestHistory ? switchRequestHistory.getSwitchRequests() : [];\n let drops = 0;\n let noDrops = 0;\n let dropSize = 0;\n const switchRequest = SwitchRequest(context).create();\n\n for (let i = 0; i < switchRequests.length; i++) {\n if (switchRequests[i] !== undefined) {\n drops += switchRequests[i].drops;\n noDrops += switchRequests[i].noDrops;\n dropSize += switchRequests[i].dropSize;\n\n if (drops + noDrops >= SAMPLE_SIZE && (drops / noDrops > MAX_SWITCH)) {\n switchRequest.quality = (i > 0 && switchRequests[i].drops > 0) ? i - 1 : i;\n switchRequest.reason = {index: switchRequest.quality, drops: drops, noDrops: noDrops, dropSize: dropSize};\n logger.debug('Switch history rule index: ' + switchRequest.quality + ' samples: ' + (drops + noDrops) + ' drops: ' + drops);\n break;\n }\n }\n }\n\n return switchRequest;\n }\n\n instance = {\n getMaxIndex: getMaxIndex\n };\n\n setup();\n\n return instance;\n}\n\n\nSwitchHistoryRule.__dashjs_factory_name = 'SwitchHistoryRule';\nexport default FactoryMaker.getClassFactory(SwitchHistoryRule);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport Debug from '../../../core/Debug';\nimport SwitchRequest from '../SwitchRequest';\nimport Constants from '../../constants/Constants';\nimport MetricsConstants from '../../constants/MetricsConstants';\n\nfunction ThroughputRule(config) {\n\n config = config || {};\n const context = this.context;\n const dashMetrics = config.dashMetrics;\n\n let instance,\n logger;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function checkConfig() {\n if (!dashMetrics || !dashMetrics.hasOwnProperty('getCurrentBufferState')) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function getMaxIndex(rulesContext) {\n const switchRequest = SwitchRequest(context).create();\n\n if (!rulesContext || !rulesContext.hasOwnProperty('getMediaInfo') || !rulesContext.hasOwnProperty('getMediaType') || !rulesContext.hasOwnProperty('useBufferOccupancyABR') ||\n !rulesContext.hasOwnProperty('getAbrController') || !rulesContext.hasOwnProperty('getScheduleController')) {\n return switchRequest;\n }\n\n checkConfig();\n\n const mediaInfo = rulesContext.getMediaInfo();\n const mediaType = rulesContext.getMediaType();\n const currentBufferState = dashMetrics.getCurrentBufferState(mediaType);\n const scheduleController = rulesContext.getScheduleController();\n const abrController = rulesContext.getAbrController();\n const streamInfo = rulesContext.getStreamInfo();\n const isDynamic = streamInfo && streamInfo.manifestInfo ? streamInfo.manifestInfo.isDynamic : null;\n const throughputHistory = abrController.getThroughputHistory();\n const throughput = throughputHistory.getSafeAverageThroughput(mediaType, isDynamic);\n const latency = throughputHistory.getAverageLatency(mediaType);\n const useBufferOccupancyABR = rulesContext.useBufferOccupancyABR();\n\n\n if (isNaN(throughput) || !currentBufferState || useBufferOccupancyABR) {\n return switchRequest;\n }\n\n if (abrController.getAbandonmentStateFor(mediaType) !== MetricsConstants.ABANDON_LOAD) {\n if (currentBufferState.state === MetricsConstants.BUFFER_LOADED || isDynamic) {\n switchRequest.quality = abrController.getQualityForBitrate(mediaInfo, throughput, latency);\n scheduleController.setTimeToLoadDelay(0);\n logger.debug('[' + mediaType + '] requesting switch to index: ', switchRequest.quality, 'Average throughput', Math.round(throughput), 'kbps');\n switchRequest.reason = {throughput: throughput, latency: latency};\n }\n }\n\n return switchRequest;\n }\n\n function reset() {\n // no persistent information to reset\n }\n\n instance = {\n getMaxIndex: getMaxIndex,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nThroughputRule.__dashjs_factory_name = 'ThroughputRule';\nexport default FactoryMaker.getClassFactory(ThroughputRule);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Authors:\n * Abdelhak Bentaleb | National University of Singapore | bentaleb@comp.nus.edu.sg\n * Mehmet N. Akcay | Ozyegin University | necmettin.akcay@ozu.edu.tr\n * May Lim | National University of Singapore | maylim@comp.nus.edu.sg\n */\n\nimport FactoryMaker from '../../../../core/FactoryMaker';\nimport Debug from '../../../../core/Debug';\n\nconst WEIGHT_SELECTION_MODES = {\n MANUAL: 'manual_weight_selection',\n RANDOM: 'random_weight_selection',\n DYNAMIC: 'dynamic_weight_selection'\n};\n\nfunction LearningAbrController() {\n const context = this.context;\n\n let instance,\n logger,\n somBitrateNeurons,\n bitrateNormalizationFactor,\n latencyNormalizationFactor,\n minBitrate,\n minBitrateNeuron,\n weights,\n sortedCenters,\n weightSelectionMode;\n\n /**\n * Setup the class\n */\n function _setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n _resetInitialSettings();\n }\n\n /**\n * Reset all values\n */\n function reset() {\n _resetInitialSettings();\n }\n\n /**\n * Reset to initial settings\n * @private\n */\n function _resetInitialSettings() {\n somBitrateNeurons = null;\n bitrateNormalizationFactor = 1;\n latencyNormalizationFactor = 100;\n minBitrate = 0;\n minBitrateNeuron = null;\n weights = null;\n sortedCenters = null;\n weightSelectionMode = WEIGHT_SELECTION_MODES.DYNAMIC;\n }\n\n /**\n * Returns the maximum throughput\n * @return {number}\n * @private\n */\n function _getMaxThroughput() {\n let maxThroughput = 0;\n\n if (somBitrateNeurons) {\n for (let i = 0; i < somBitrateNeurons.length; i++) {\n let neuron = somBitrateNeurons[i];\n if (neuron.state.throughput > maxThroughput) {\n maxThroughput = neuron.state.throughput;\n }\n }\n }\n\n return maxThroughput;\n }\n\n /**\n *\n * @param {array} w\n * @return {number}\n * @private\n */\n function _getMagnitude(w) {\n const magnitude = w.map((x) => (Math.pow(x, 2))).reduce((sum, now) => sum + now);\n\n return Math.sqrt(magnitude);\n }\n\n /**\n *\n * @param {array} a\n * @param {array} b\n * @param {array} w\n * @return {number}\n * @private\n */\n function _getDistance(a, b, w) {\n let sum = a\n .map((x, i) => (w[i] * (Math.pow(x - b[i], 2)))) // square the difference*w\n .reduce((sum, now) => sum + now); // sum\n let sign = (sum < 0) ? -1 : 1;\n\n return sign * Math.sqrt(Math.abs(sum));\n }\n\n /**\n *\n * @param {object} a\n * @param {object} b\n * @return {number}\n * @private\n */\n function _getNeuronDistance(a, b) {\n let aState = [a.state.throughput, a.state.latency, a.state.rebuffer, a.state.switch];\n let bState = [b.state.throughput, b.state.latency, b.state.rebuffer, b.state.switch];\n\n return _getDistance(aState, bState, [1, 1, 1, 1]);\n }\n\n /**\n *\n * @param {object} winnerNeuron\n * @param {array} somElements\n * @param {array} x\n * @private\n */\n function _updateNeurons(winnerNeuron, somElements, x) {\n for (let i = 0; i < somElements.length; i++) {\n let somNeuron = somElements[i];\n let sigma = 0.1;\n const neuronDistance = _getNeuronDistance(somNeuron, winnerNeuron);\n let neighbourHood = Math.exp(-1 * Math.pow(neuronDistance, 2) / (2 * Math.pow(sigma, 2)));\n _updateNeuronState(somNeuron, x, neighbourHood);\n }\n }\n\n /**\n *\n * @param {object} neuron\n * @param {array} x\n * @param {object} neighbourHood\n * @private\n */\n function _updateNeuronState(neuron, x, neighbourHood) {\n let state = neuron.state;\n let w = [0.01, 0.01, 0.01, 0.01]; // learning rate\n\n state.throughput = state.throughput + (x[0] - state.throughput) * w[0] * neighbourHood;\n state.latency = state.latency + (x[1] - state.latency) * w[1] * neighbourHood;\n state.rebuffer = state.rebuffer + (x[2] - state.rebuffer) * w[2] * neighbourHood;\n state.switch = state.switch + (x[3] - state.switch) * w[3] * neighbourHood;\n }\n\n /**\n *\n * @param {object} currentNeuron\n * @param {number} currentThroughput\n * @return {object}\n * @private\n */\n function _getDownShiftNeuron(currentNeuron, currentThroughput) {\n let maxSuitableBitrate = 0;\n let result = currentNeuron;\n\n if (somBitrateNeurons) {\n for (let i = 0; i < somBitrateNeurons.length; i++) {\n let n = somBitrateNeurons[i];\n if (n.bitrate < currentNeuron.bitrate && n.bitrate > maxSuitableBitrate && currentThroughput > n.bitrate) {\n // possible downshiftable neuron\n maxSuitableBitrate = n.bitrate;\n result = n;\n }\n }\n }\n\n return result;\n }\n\n /**\n *\n * @param {object} mediaInfo\n * @param {number} throughput\n * @param {number} latency\n * @param {number} bufferSize\n * @param {number} playbackRate\n * @param {number} currentQualityIndex\n * @param {object} dynamicWeightsSelector\n * @return {null|*}\n */\n function getNextQuality(mediaInfo, throughput, latency, bufferSize, playbackRate, currentQualityIndex, dynamicWeightsSelector) {\n // For Dynamic Weights Selector\n let currentLatency = latency;\n let currentBuffer = bufferSize;\n let currentThroughput = throughput;\n\n let somElements = _getSomBitrateNeurons(mediaInfo);\n // normalize throughput\n let throughputNormalized = throughput / bitrateNormalizationFactor;\n // saturate values higher than 1\n if (throughputNormalized > 1) {\n throughputNormalized = _getMaxThroughput();\n }\n // normalize latency\n latency = latency / latencyNormalizationFactor;\n\n const targetLatency = 0;\n const targetRebufferLevel = 0;\n const targetSwitch = 0;\n // 10K + video encoding is the recommended throughput\n const throughputDelta = 10000;\n\n logger.debug(`getNextQuality called throughput:${throughputNormalized} latency:${latency} bufferSize:${bufferSize} currentQualityIndex:${currentQualityIndex} playbackRate:${playbackRate}`);\n\n let currentNeuron = somElements[currentQualityIndex];\n let downloadTime = (currentNeuron.bitrate * dynamicWeightsSelector.getSegmentDuration()) / currentThroughput;\n let rebuffer = Math.max(0, (downloadTime - currentBuffer));\n\n // check buffer for possible stall\n if (currentBuffer - downloadTime < dynamicWeightsSelector.getMinBuffer()) {\n logger.debug(`Buffer is low for bitrate= ${currentNeuron.bitrate} downloadTime=${downloadTime} currentBuffer=${currentBuffer} rebuffer=${rebuffer}`);\n return _getDownShiftNeuron(currentNeuron, currentThroughput).qualityIndex;\n }\n\n switch (weightSelectionMode) {\n case WEIGHT_SELECTION_MODES.MANUAL:\n _manualWeightSelection();\n break;\n case WEIGHT_SELECTION_MODES.RANDOM:\n _randomWeightSelection(somElements);\n break;\n case WEIGHT_SELECTION_MODES.DYNAMIC:\n _dynamicWeightSelection(dynamicWeightsSelector, somElements, currentLatency, currentBuffer, rebuffer, currentThroughput, playbackRate);\n break;\n default:\n _dynamicWeightSelection(dynamicWeightsSelector, somElements, currentLatency, currentBuffer, rebuffer, currentThroughput, playbackRate);\n\n }\n\n let minDistance = null;\n let minIndex = null;\n let winnerNeuron = null;\n let winnerWeights = null;\n\n for (let i = 0; i < somElements.length; i++) {\n let somNeuron = somElements[i];\n let somNeuronState = somNeuron.state;\n let somData = [somNeuronState.throughput,\n somNeuronState.latency,\n somNeuronState.rebuffer,\n somNeuronState.switch];\n\n let distanceWeights = weights.slice();\n let nextBuffer = dynamicWeightsSelector.getNextBufferWithBitrate(somNeuron.bitrate, currentBuffer, currentThroughput);\n let isBufferLow = nextBuffer < dynamicWeightsSelector.getMinBuffer();\n if (isBufferLow) {\n logger.debug(`Buffer is low for bitrate=${somNeuron.bitrate} downloadTime=${downloadTime} currentBuffer=${currentBuffer} nextBuffer=${nextBuffer}`);\n }\n // special condition downshift immediately\n if (somNeuron.bitrate > throughput - throughputDelta || isBufferLow) {\n if (somNeuron.bitrate !== minBitrate) {\n // encourage to pick smaller bitrates throughputWeight=100\n distanceWeights[0] = 100;\n }\n }\n\n // calculate the distance with the target\n let distance = _getDistance(somData, [throughputNormalized, targetLatency, targetRebufferLevel, targetSwitch], distanceWeights);\n if (minDistance === null || distance < minDistance) {\n minDistance = distance;\n minIndex = somNeuron.qualityIndex;\n winnerNeuron = somNeuron;\n winnerWeights = distanceWeights;\n }\n }\n\n // update current neuron and the neighbourhood with the calculated QoE\n // will punish current if it is not picked\n let bitrateSwitch = Math.abs(currentNeuron.bitrate - winnerNeuron.bitrate) / bitrateNormalizationFactor;\n _updateNeurons(currentNeuron, somElements, [throughputNormalized, latency, rebuffer, bitrateSwitch]);\n\n // update bmu and neighbours with targetQoE=1, targetLatency=0\n _updateNeurons(winnerNeuron, somElements, [throughputNormalized, targetLatency, targetRebufferLevel, bitrateSwitch]);\n\n return minIndex;\n }\n\n /**\n * Option 1: Manual weights\n * @private\n */\n function _manualWeightSelection() {\n let throughputWeight = 0.4;\n let latencyWeight = 0.4;\n let bufferWeight = 0.4;\n let switchWeight = 0.4;\n\n weights = [throughputWeight, latencyWeight, bufferWeight, switchWeight]; // throughput, latency, buffer, switch\n }\n\n /**\n * Option 2: Random (Xavier) weights\n * @param {array} somElements\n * @private\n */\n function _randomWeightSelection(somElements) {\n weights = _getXavierWeights(somElements.length, 4);\n }\n\n /**\n * Dynamic Weight Selector weights\n * @param {object} dynamicWeightsSelector\n * @param {array} somElements\n * @param {number} currentLatency\n * @param {number} currentBuffer\n * @param {number} rebuffer\n * @param {number} currentThroughput\n * @param {number} playbackRate\n * @private\n */\n function _dynamicWeightSelection(dynamicWeightsSelector, somElements, currentLatency, currentBuffer, rebuffer, currentThroughput, playbackRate) {\n if (!weights) {\n weights = sortedCenters[sortedCenters.length - 1];\n }\n // Dynamic Weights Selector (step 2/2: find weights)\n let weightVector = dynamicWeightsSelector.findWeightVector(somElements, currentLatency, currentBuffer, rebuffer, currentThroughput, playbackRate);\n if (weightVector !== null && weightVector !== -1) { // null: something went wrong, -1: constraints not met\n weights = weightVector;\n }\n }\n\n /**\n *\n * @param {number }neuronCount\n * @param {number }weightCount\n * @return {array}\n * @private\n */\n function _getXavierWeights(neuronCount, weightCount) {\n let W = [];\n let upperBound = Math.sqrt((2 / neuronCount));\n\n for (let i = 0; i < weightCount; i++) {\n W.push(Math.random() * upperBound);\n }\n\n weights = W;\n\n return weights;\n }\n\n /**\n *\n * @param {object} mediaInfo\n * @return {array}\n * @private\n */\n function _getSomBitrateNeurons(mediaInfo) {\n if (!somBitrateNeurons) {\n somBitrateNeurons = [];\n const bitrateList = mediaInfo.bitrateList;\n let bitrateVector = [];\n minBitrate = bitrateList[0].bandwidth;\n\n bitrateList.forEach(element => {\n bitrateVector.push(element.bandwidth);\n if (element.bandwidth < minBitrate) {\n minBitrate = element.bandwidth;\n }\n });\n bitrateNormalizationFactor = _getMagnitude(bitrateVector);\n\n for (let i = 0; i < bitrateList.length; i++) {\n let neuron = {\n qualityIndex: i,\n bitrate: bitrateList[i].bandwidth,\n state: {\n // normalize throughputs\n throughput: bitrateList[i].bandwidth / bitrateNormalizationFactor,\n latency: 0,\n rebuffer: 0,\n switch: 0\n }\n };\n somBitrateNeurons.push(neuron);\n if (neuron.bitrate === minBitrate) {\n minBitrateNeuron = neuron;\n }\n }\n\n sortedCenters = _getInitialKmeansPlusPlusCenters(somBitrateNeurons);\n }\n\n return somBitrateNeurons;\n }\n\n /**\n *\n * @param {number} size\n * @return {array}\n * @private\n */\n function _getRandomData(size) {\n let dataArray = [];\n\n for (let i = 0; i < size; i++) {\n let data = [\n Math.random() * _getMaxThroughput(), //throughput\n Math.random(), //latency\n Math.random(), //buffersize\n Math.random() //switch\n ];\n dataArray.push(data);\n }\n\n return dataArray;\n }\n\n /**\n *\n * @param {array} somElements\n * @return {array}\n * @private\n */\n function _getInitialKmeansPlusPlusCenters(somElements) {\n let centers = [];\n let randomDataSet = _getRandomData(Math.pow(somElements.length, 2));\n centers.push(randomDataSet[0]);\n let distanceWeights = [1, 1, 1, 1];\n\n for (let k = 1; k < somElements.length; k++) {\n let nextPoint = null;\n let maxDistance = null;\n for (let i = 0; i < randomDataSet.length; i++) {\n let currentPoint = randomDataSet[i];\n let minDistance = null;\n for (let j = 0; j < centers.length; j++) {\n let distance = _getDistance(currentPoint, centers[j], distanceWeights);\n if (minDistance === null || distance < minDistance) {\n minDistance = distance;\n }\n }\n if (maxDistance === null || minDistance > maxDistance) {\n nextPoint = currentPoint;\n maxDistance = minDistance;\n }\n }\n centers.push(nextPoint);\n }\n\n // find the least similar center\n let maxDistance = null;\n let leastSimilarIndex = null;\n for (let i = 0; i < centers.length; i++) {\n let distance = 0;\n for (let j = 0; j < centers.length; j++) {\n if (i === j) continue;\n distance += _getDistance(centers[i], centers[j], distanceWeights);\n }\n if (maxDistance === null || distance > maxDistance) {\n maxDistance = distance;\n leastSimilarIndex = i;\n }\n }\n\n // move centers to sortedCenters\n let sortedCenters = [];\n sortedCenters.push(centers[leastSimilarIndex]);\n centers.splice(leastSimilarIndex, 1);\n while (centers.length > 0) {\n let minDistance = null;\n let minIndex = null;\n for (let i = 0; i < centers.length; i++) {\n let distance = _getDistance(sortedCenters[0], centers[i], distanceWeights);\n if (minDistance === null || distance < minDistance) {\n minDistance = distance;\n minIndex = i;\n }\n }\n sortedCenters.push(centers[minIndex]);\n centers.splice(minIndex, 1);\n }\n\n return sortedCenters;\n }\n\n instance = {\n getNextQuality,\n reset\n };\n\n _setup();\n return instance;\n}\n\nLearningAbrController.__dashjs_factory_name = 'LearningAbrController';\nexport default FactoryMaker.getClassFactory(LearningAbrController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Authors:\n * Abdelhak Bentaleb | National University of Singapore | bentaleb@comp.nus.edu.sg\n * Mehmet N. Akcay | Ozyegin University | necmettin.akcay@ozu.edu.tr\n * May Lim | National University of Singapore | maylim@comp.nus.edu.sg\n */\nimport FactoryMaker from '../../../../core/FactoryMaker';\nimport QoeInfo from './QoeInfo';\n\nfunction LoLpQoeEvaluator() {\n\n let instance,\n voPerSegmentQoeInfo,\n segmentDuration,\n maxBitrateKbps,\n minBitrateKbps;\n\n function _setup() {\n _resetInitialSettings();\n }\n\n function _resetInitialSettings() {\n voPerSegmentQoeInfo = null;\n segmentDuration = null;\n maxBitrateKbps = null;\n minBitrateKbps = null;\n }\n\n function setupPerSegmentQoe(sDuration, maxBrKbps, minBrKbps) {\n // Set up Per Segment QoeInfo\n voPerSegmentQoeInfo = _createQoeInfo('segment', sDuration, maxBrKbps, minBrKbps);\n segmentDuration = sDuration;\n maxBitrateKbps = maxBrKbps;\n minBitrateKbps = minBrKbps;\n }\n\n function _createQoeInfo(fragmentType, fragmentDuration, maxBitrateKbps, minBitrateKbps) {\n /*\n * [Weights][Source: Abdelhak Bentaleb, 2020 (last updated: 30 Mar 2020)]\n * bitrateReward: segment duration, e.g. 0.5s\n * bitrateSwitchPenalty: 0.02s or 1s if the bitrate switch is too important\n * rebufferPenalty: max encoding bitrate, e.g. 1000kbps\n * latencyPenalty: if L ≤ 1.1 seconds then = min encoding bitrate * 0.05, otherwise = max encoding bitrate * 0.1\n * playbackSpeedPenalty: min encoding bitrate, e.g. 200kbps\n */\n\n // Create new QoeInfo object\n let qoeInfo = new QoeInfo();\n qoeInfo.type = fragmentType;\n\n // Set weight: bitrateReward\n // set some safe value, else consider throwing error\n if (!fragmentDuration) {\n qoeInfo.weights.bitrateReward = 1;\n }\n else {\n qoeInfo.weights.bitrateReward = fragmentDuration;\n }\n\n // Set weight: bitrateSwitchPenalty\n // qoeInfo.weights.bitrateSwitchPenalty = 0.02;\n qoeInfo.weights.bitrateSwitchPenalty = 1;\n\n // Set weight: rebufferPenalty\n // set some safe value, else consider throwing error\n if (!maxBitrateKbps) {\n qoeInfo.weights.rebufferPenalty = 1000;\n }\n else {\n qoeInfo.weights.rebufferPenalty = maxBitrateKbps;\n }\n\n // Set weight: latencyPenalty\n qoeInfo.weights.latencyPenalty = [];\n qoeInfo.weights.latencyPenalty.push({ threshold: 1.1, penalty: (minBitrateKbps * 0.05) });\n qoeInfo.weights.latencyPenalty.push({ threshold: 100000000, penalty: (maxBitrateKbps * 0.1) });\n\n // Set weight: playbackSpeedPenalty\n if (!minBitrateKbps) qoeInfo.weights.playbackSpeedPenalty = 200; // set some safe value, else consider throwing error\n else qoeInfo.weights.playbackSpeedPenalty = minBitrateKbps;\n\n return qoeInfo;\n }\n\n function logSegmentMetrics(segmentBitrate, segmentRebufferTime, currentLatency, currentPlaybackSpeed) {\n if (voPerSegmentQoeInfo) {\n _logMetricsInQoeInfo(segmentBitrate, segmentRebufferTime, currentLatency, currentPlaybackSpeed, voPerSegmentQoeInfo);\n }\n }\n\n function _logMetricsInQoeInfo(bitrate, rebufferTime, latency, playbackSpeed, qoeInfo) {\n // Update: bitrate Weighted Sum value\n qoeInfo.bitrateWSum += (qoeInfo.weights.bitrateReward * bitrate);\n\n // Update: bitrateSwitch Weighted Sum value\n if (qoeInfo.lastBitrate) {\n qoeInfo.bitrateSwitchWSum += (qoeInfo.weights.bitrateSwitchPenalty * Math.abs(bitrate - qoeInfo.lastBitrate));\n }\n qoeInfo.lastBitrate = bitrate;\n\n // Update: rebuffer Weighted Sum value\n qoeInfo.rebufferWSum += (qoeInfo.weights.rebufferPenalty * rebufferTime);\n\n // Update: latency Weighted Sum value\n for (let i = 0; i < qoeInfo.weights.latencyPenalty.length; i++) {\n let latencyRange = qoeInfo.weights.latencyPenalty[i];\n if (latency <= latencyRange.threshold) {\n qoeInfo.latencyWSum += (latencyRange.penalty * latency);\n break;\n }\n }\n\n // Update: playbackSpeed Weighted Sum value\n qoeInfo.playbackSpeedWSum += (qoeInfo.weights.playbackSpeedPenalty * Math.abs(1 - playbackSpeed));\n\n // Update: Total Qoe value\n qoeInfo.totalQoe = qoeInfo.bitrateWSum - qoeInfo.bitrateSwitchWSum - qoeInfo.rebufferWSum - qoeInfo.latencyWSum - qoeInfo.playbackSpeedWSum;\n }\n\n // Returns current Per Segment QoeInfo\n function getPerSegmentQoe() {\n return voPerSegmentQoeInfo;\n }\n\n // For one-time use only\n // Returns totalQoe based on a single set of metrics.\n function calculateSingleUseQoe(segmentBitrate, segmentRebufferTime, currentLatency, currentPlaybackSpeed) {\n let singleUseQoeInfo = null;\n\n if (segmentDuration && maxBitrateKbps && minBitrateKbps) {\n singleUseQoeInfo = _createQoeInfo('segment', segmentDuration, maxBitrateKbps, minBitrateKbps);\n }\n\n if (singleUseQoeInfo) {\n _logMetricsInQoeInfo(segmentBitrate, segmentRebufferTime, currentLatency, currentPlaybackSpeed, singleUseQoeInfo);\n return singleUseQoeInfo.totalQoe;\n } else {\n // Something went wrong..\n return 0;\n }\n }\n\n function reset() {\n _resetInitialSettings();\n }\n\n instance = {\n setupPerSegmentQoe,\n logSegmentMetrics,\n getPerSegmentQoe,\n calculateSingleUseQoe,\n reset\n };\n\n _setup();\n\n return instance;\n}\n\nLoLpQoeEvaluator.__dashjs_factory_name = 'LoLpQoeEvaluator';\nexport default FactoryMaker.getClassFactory(LoLpQoeEvaluator);\n\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Authors:\n * Abdelhak Bentaleb | National University of Singapore | bentaleb@comp.nus.edu.sg\n * Mehmet N. Akcay | Ozyegin University | necmettin.akcay@ozu.edu.tr\n * May Lim | National University of Singapore | maylim@comp.nus.edu.sg\n */\n\nimport Debug from '../../../../core/Debug';\nimport FactoryMaker from '../../../../core/FactoryMaker';\nimport LearningAbrController from './LearningAbrController';\nimport LoLpQoeEvaluator from './LoLpQoEEvaluator';\nimport SwitchRequest from '../../SwitchRequest';\nimport MetricsConstants from '../../../constants/MetricsConstants';\nimport LoLpWeightSelector from './LoLpWeightSelector';\nimport Constants from '../../../constants/Constants';\n\nconst DWS_TARGET_LATENCY = 1.5;\nconst DWS_BUFFER_MIN = 0.3;\n\nfunction LoLPRule(config) {\n\n config = config || {};\n\n let dashMetrics = config.dashMetrics;\n let context = this.context;\n\n let logger,\n instance,\n learningController,\n qoeEvaluator;\n\n function _setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n learningController = LearningAbrController(context).create();\n qoeEvaluator = LoLpQoeEvaluator(context).create();\n }\n\n function getMaxIndex(rulesContext) {\n try {\n let switchRequest = SwitchRequest(context).create();\n let mediaType = rulesContext.getMediaInfo().type;\n let abrController = rulesContext.getAbrController();\n const streamInfo = rulesContext.getStreamInfo();\n let currentQuality = abrController.getQualityFor(mediaType, streamInfo);\n const mediaInfo = rulesContext.getMediaInfo();\n const bufferStateVO = dashMetrics.getCurrentBufferState(mediaType);\n const scheduleController = rulesContext.getScheduleController();\n const currentBufferLevel = dashMetrics.getCurrentBufferLevel(mediaType, true);\n const isDynamic = streamInfo && streamInfo.manifestInfo ? streamInfo.manifestInfo.isDynamic : null;\n const playbackController = scheduleController.getPlaybackController();\n let latency = playbackController.getCurrentLiveLatency();\n\n if (!rulesContext.useLoLPABR() || (mediaType === Constants.AUDIO)) {\n return switchRequest;\n }\n\n if (!latency) {\n latency = 0;\n }\n\n const playbackRate = playbackController.getPlaybackRate();\n const throughputHistory = abrController.getThroughputHistory();\n const throughput = throughputHistory.getSafeAverageThroughput(mediaType, isDynamic);\n logger.debug(`Throughput ${Math.round(throughput)} kbps`);\n\n if (isNaN(throughput) || !bufferStateVO) {\n return switchRequest;\n }\n\n if (abrController.getAbandonmentStateFor(mediaType) === MetricsConstants.ABANDON_LOAD) {\n return switchRequest;\n }\n\n // QoE parameters\n let bitrateList = mediaInfo.bitrateList; // [{bandwidth: 200000, width: 640, height: 360}, ...]\n let segmentDuration = rulesContext.getRepresentationInfo().fragmentDuration;\n let minBitrateKbps = bitrateList[0].bandwidth / 1000.0; // min bitrate level\n let maxBitrateKbps = bitrateList[bitrateList.length - 1].bandwidth / 1000.0; // max bitrate level\n for (let i = 0; i < bitrateList.length; i++) { // in case bitrateList is not sorted as expected\n let b = bitrateList[i].bandwidth / 1000.0;\n if (b > maxBitrateKbps)\n maxBitrateKbps = b;\n else if (b < minBitrateKbps) {\n minBitrateKbps = b;\n }\n }\n\n // Learning rule pre-calculations\n let currentBitrate = bitrateList[currentQuality].bandwidth;\n let currentBitrateKbps = currentBitrate / 1000.0;\n let httpRequest = dashMetrics.getCurrentHttpRequest(mediaType, true);\n let lastFragmentDownloadTime = (httpRequest.tresponse.getTime() - httpRequest.trequest.getTime()) / 1000;\n let segmentRebufferTime = lastFragmentDownloadTime > segmentDuration ? lastFragmentDownloadTime - segmentDuration : 0;\n qoeEvaluator.setupPerSegmentQoe(segmentDuration, maxBitrateKbps, minBitrateKbps);\n qoeEvaluator.logSegmentMetrics(currentBitrateKbps, segmentRebufferTime, latency, playbackRate);\n\n /*\n * Dynamic Weights Selector (step 1/2: initialization)\n */\n let dynamicWeightsSelector = LoLpWeightSelector(context).create({\n targetLatency: DWS_TARGET_LATENCY,\n bufferMin: DWS_BUFFER_MIN,\n segmentDuration,\n qoeEvaluator\n });\n\n /*\n * Select next quality\n */\n switchRequest.quality = learningController.getNextQuality(mediaInfo, throughput * 1000, latency, currentBufferLevel, playbackRate, currentQuality, dynamicWeightsSelector);\n switchRequest.reason = { throughput: throughput, latency: latency };\n switchRequest.priority = SwitchRequest.PRIORITY.STRONG;\n\n scheduleController.setTimeToLoadDelay(0);\n\n if (switchRequest.quality !== currentQuality) {\n console.log('[TgcLearningRule][' + mediaType + '] requesting switch to index: ', switchRequest.quality, 'Average throughput', Math.round(throughput), 'kbps');\n }\n\n return switchRequest;\n } catch (e) {\n throw e;\n }\n }\n\n /**\n * Reset objects to their initial state\n * @private\n */\n function _resetInitialSettings() {\n learningController.reset();\n qoeEvaluator.reset();\n }\n\n /**\n * Reset the rule\n */\n function reset() {\n _resetInitialSettings();\n }\n\n instance = {\n getMaxIndex,\n reset\n };\n\n _setup();\n\n return instance;\n}\n\nLoLPRule.__dashjs_factory_name = 'LoLPRule';\nexport default FactoryMaker.getClassFactory(LoLPRule);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * Authors:\n * Abdelhak Bentaleb | National University of Singapore | bentaleb@comp.nus.edu.sg\n * Mehmet N. Akcay | Ozyegin University | necmettin.akcay@ozu.edu.tr\n * May Lim | National University of Singapore | maylim@comp.nus.edu.sg\n */\n\nimport FactoryMaker from '../../../../core/FactoryMaker';\n\nfunction LoLpWeightSelector(config) {\n let targetLatency = config.targetLatency;\n let bufferMin = config.bufferMin;\n let segmentDuration = config.segmentDuration;\n let qoeEvaluator = config.qoeEvaluator;\n let instance,\n valueList,\n weightTypeCount,\n weightOptions,\n previousLatency;\n\n /**\n *\n * @private\n */\n function _setup() {\n _resetInitialSettings();\n }\n\n /**\n *\n * @private\n */\n function _resetInitialSettings() {\n valueList = [0.2, 0.4, 0.6, 0.8, 1];\n weightTypeCount = 4;\n weightOptions = _getPermutations(valueList, weightTypeCount);\n previousLatency = 0;\n }\n\n /**\n * Next, at each segment boundary, ABR to input current neurons and target state (only used in Method II) to find the desired weight vector\n * @param {array} neurons\n * @param {number} currentLatency\n * @param {number} currentBuffer\n * @param {number} currentRebuffer\n * @param {number} currentThroughput\n * @param {number} playbackRate\n * @return {null}\n * @private\n */\n function findWeightVector(neurons, currentLatency, currentBuffer, currentRebuffer, currentThroughput, playbackRate) {\n let maxQoE = null;\n let winnerWeights = null;\n let winnerBitrate = null;\n let deltaLatency = Math.abs(currentLatency - previousLatency);\n\n // For each neuron, m\n neurons.forEach((neuron) => {\n\n // For each possible weight vector, z\n // E.g. For [ throughput, latency, buffer, playbackRate, QoE ]\n // Possible weightVector = [ 0.2, 0.4, 0.2, 0, 0.2 ]\n weightOptions.forEach((weightVector) => {\n\n // Apply weightVector to neuron, compute utility and determine winnerWeights\n // Method I: Utility based on QoE given current state\n\n let weightsObj = {\n throughput: weightVector[0],\n latency: weightVector[1],\n buffer: weightVector[2],\n switch: weightVector[3]\n };\n\n let downloadTime = (neuron.bitrate * segmentDuration) / currentThroughput;\n let nextBuffer = getNextBuffer(currentBuffer, downloadTime);\n let rebuffer = Math.max(0.00001, (downloadTime - nextBuffer));\n let wt;\n if (weightsObj.buffer === 0) {\n wt = 10;\n } else {\n wt = (1 / weightsObj.buffer);\n }\n let weightedRebuffer = wt * rebuffer;\n\n if (weightsObj.latency === 0) {\n wt = 10;\n } else {\n wt = (1 / weightsObj.latency); // inverse the weight because wt and latency should have positive relationship, i.e., higher latency = higher wt\n }\n let weightedLatency = wt * neuron.state.latency;\n\n let totalQoE = qoeEvaluator.calculateSingleUseQoe(neuron.bitrate, weightedRebuffer, weightedLatency, playbackRate);\n if ((maxQoE === null || totalQoE > maxQoE) && _checkConstraints(currentLatency, nextBuffer, deltaLatency)) {\n maxQoE = totalQoE;\n winnerWeights = weightVector;\n winnerBitrate = neuron.bitrate;\n }\n });\n });\n\n // winnerWeights was found, check if constraints are satisfied\n if (winnerWeights === null && winnerBitrate === null) {\n winnerWeights = -1;\n }\n\n previousLatency = currentLatency;\n return winnerWeights;\n }\n\n /**\n *\n * @param {number} nextLatency\n * @param {number} nextBuffer\n * @param {number} deltaLatency\n * @return {boolean}\n * @private\n */\n function _checkConstraints(nextLatency, nextBuffer, deltaLatency) {\n // A1\n // disabled till we find a better way of estimating latency\n // fails for all with current value\n if (nextLatency > targetLatency + deltaLatency) {\n return false;\n }\n\n return nextBuffer >= bufferMin;\n }\n\n /**\n *\n * @param {array} list\n * @param {number} length\n * @return {*}\n * @private\n */\n function _getPermutations(list, length) {\n // Copy initial values as arrays\n let perm = list.map(function (val) {\n return [val];\n });\n // Our permutation generator\n let generate = function (perm, length, currLen) {\n // Reached desired length\n if (currLen === length) {\n return perm;\n }\n // For each existing permutation\n let len = perm.length;\n for (let i = 0; i < len; i++) {\n let currPerm = perm.shift();\n // Create new permutation\n for (let k = 0; k < list.length; k++) {\n perm.push(currPerm.concat(list[k]));\n }\n }\n // Recurse\n return generate(perm, length, currLen + 1);\n };\n // Start with size 1 because of initial values\n return generate(perm, length, 1);\n }\n\n /**\n *\n * @return {number}\n */\n function getMinBuffer() {\n return bufferMin;\n }\n\n /**\n *\n * @return {number}\n */\n function getSegmentDuration() {\n return segmentDuration;\n }\n\n /**\n *\n * @param {number} bitrateToDownload\n * @param {number} currentBuffer\n * @param {number} currentThroughput\n * @return {number}\n */\n function getNextBufferWithBitrate(bitrateToDownload, currentBuffer, currentThroughput) {\n let downloadTime = (bitrateToDownload * segmentDuration) / currentThroughput;\n return getNextBuffer(currentBuffer, downloadTime);\n }\n\n /**\n *\n * @param {number} currentBuffer\n * @param {number} downloadTime\n * @return {number}\n */\n function getNextBuffer(currentBuffer, downloadTime) {\n const segmentDuration = getSegmentDuration();\n let nextBuffer;\n if (downloadTime > segmentDuration) {\n nextBuffer = currentBuffer - segmentDuration;\n } else {\n nextBuffer = currentBuffer + segmentDuration - downloadTime;\n }\n return nextBuffer;\n }\n\n instance = {\n getMinBuffer,\n getSegmentDuration,\n getNextBufferWithBitrate,\n getNextBuffer,\n findWeightVector\n };\n\n _setup();\n\n return instance;\n}\n\nLoLpWeightSelector.__dashjs_factory_name = 'LoLpWeightSelector';\nexport default FactoryMaker.getClassFactory(LoLpWeightSelector);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nclass QoeInfo {\n\n constructor() {\n // Type e.g. 'segment'\n this.type = null;\n\n // Store lastBitrate for calculation of bitrateSwitchWSum\n this.lastBitrate = null;\n\n // Weights for each Qoe factor\n this.weights = {};\n this.weights.bitrateReward = null;\n this.weights.bitrateSwitchPenalty = null;\n this.weights.rebufferPenalty = null;\n this.weights.latencyPenalty = null;\n this.weights.playbackSpeedPenalty = null;\n\n // Weighted Sum for each Qoe factor\n this.bitrateWSum = 0; // kbps\n this.bitrateSwitchWSum = 0; // kbps\n this.rebufferWSum = 0; // seconds\n this.latencyWSum = 0; // seconds\n this.playbackSpeedWSum = 0; // e.g. 0.95, 1.0, 1.05\n\n // Store total Qoe value based on current Weighted Sum values\n this.totalQoe = 0;\n }\n}\n\nexport default QoeInfo;\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * @class\n * @ignore\n */\nclass QoeInfo {\n\n constructor() {\n // Type e.g. 'segment'\n this.type = null;\n\n // Store lastBitrate for calculation of bitrateSwitchWSum\n this.lastBitrate = null;\n\n // Weights for each Qoe factor\n this.weights = {};\n this.weights.bitrateReward = null;\n this.weights.bitrateSwitchPenalty = null;\n this.weights.rebufferPenalty = null;\n this.weights.latencyPenalty = null;\n this.weights.playbackSpeedPenalty = null;\n\n // Weighted Sum for each Qoe factor\n this.bitrateWSum = 0; // kbps\n this.bitrateSwitchWSum = 0; // kbps\n this.rebufferWSum = 0; // seconds\n this.latencyWSum = 0; // seconds\n this.playbackSpeedWSum = 0; // e.g. 0.95, 1.0, 1.05\n\n // Store total Qoe value based on current Weighted Sum values\n this.totalQoe = 0;\n }\n}\n\nexport default QoeInfo;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../../constants/Constants';\nimport FactoryMaker from '../../../core/FactoryMaker';\nimport MetricsConstants from '../../constants/MetricsConstants';\n\nfunction BufferLevelRule(config) {\n\n config = config || {};\n const dashMetrics = config.dashMetrics;\n const mediaPlayerModel = config.mediaPlayerModel;\n const textController = config.textController;\n const abrController = config.abrController;\n const settings = config.settings;\n\n function setup() {\n }\n\n function execute(type, representationInfo, hasVideoTrack) {\n if (!type || !representationInfo) {\n return true;\n }\n const bufferLevel = dashMetrics.getCurrentBufferLevel(type);\n return bufferLevel < getBufferTarget(type, representationInfo, hasVideoTrack);\n }\n\n function getBufferTarget(type, representationInfo, hasVideoTrack) {\n let bufferTarget = NaN;\n\n if (!type || !representationInfo) {\n return bufferTarget;\n }\n\n if (type === Constants.FRAGMENTED_TEXT) {\n if (textController.isTextEnabled()) {\n if (isNaN(representationInfo.fragmentDuration)) { //fragmentDuration of representationInfo is not defined,\n // call metrics function to have data in the latest scheduling info...\n // if no metric, returns 0. In this case, rule will return false.\n const schedulingInfo = dashMetrics.getCurrentSchedulingInfo(MetricsConstants.SCHEDULING_INFO);\n bufferTarget = schedulingInfo ? schedulingInfo.duration : 0;\n } else {\n bufferTarget = representationInfo.fragmentDuration;\n }\n } else { // text is disabled, rule will return false\n bufferTarget = 0;\n }\n } else if (type === Constants.AUDIO && hasVideoTrack) {\n const videoBufferLevel = dashMetrics.getCurrentBufferLevel(Constants.VIDEO);\n if (isNaN(representationInfo.fragmentDuration)) {\n bufferTarget = videoBufferLevel;\n } else {\n bufferTarget = Math.max(videoBufferLevel, representationInfo.fragmentDuration);\n }\n } else {\n const streamInfo = representationInfo.mediaInfo.streamInfo;\n if (abrController.isPlayingAtTopQuality(streamInfo)) {\n const isLongFormContent = streamInfo.manifestInfo.duration >= settings.get().streaming.longFormContentDurationThreshold;\n bufferTarget = isLongFormContent ? settings.get().streaming.bufferTimeAtTopQualityLongForm : settings.get().streaming.bufferTimeAtTopQuality;\n } else {\n bufferTarget = mediaPlayerModel.getStableBufferTime();\n }\n }\n return bufferTarget;\n }\n\n const instance = {\n execute: execute,\n getBufferTarget: getBufferTarget\n };\n\n setup();\n return instance;\n}\n\nBufferLevelRule.__dashjs_factory_name = 'BufferLevelRule';\nexport default FactoryMaker.getClassFactory(BufferLevelRule);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\n\nfunction EmbeddedTextHtmlRender() {\n\n let captionId = 0;\n let instance;\n\n /* HTML Rendering functions */\n function checkIndent(chars) {\n let line = '';\n\n for (let c = 0; c < chars.length; ++c) {\n const uc = chars[c];\n line += uc.uchar;\n }\n\n const l = line.length;\n const ll = line.replace(/^\\s+/,'').length;\n return l - ll;\n }\n\n function getRegionProperties(region) {\n return 'left: ' + (region.x * 3.125) + '%; top: ' + (region.y1 * 6.66) + '%; width: ' + (100 - (region.x * 3.125)) + '%; height: ' + (Math.max((region.y2 - 1) - region.y1, 1) * 6.66) + '%; align-items: flex-start; overflow: visible; -webkit-writing-mode: horizontal-tb;';\n }\n\n function createRGB(color) {\n if (color === 'red') {\n return 'rgb(255, 0, 0)';\n } else if (color === 'green') {\n return 'rgb(0, 255, 0)';\n } else if (color === 'blue') {\n return 'rgb(0, 0, 255)';\n } else if (color === 'cyan') {\n return 'rgb(0, 255, 255)';\n } else if (color === 'magenta') {\n return 'rgb(255, 0, 255)';\n } else if (color === 'yellow') {\n return 'rgb(255, 255, 0)';\n } else if (color === 'white') {\n return 'rgb(255, 255, 255)';\n } else if (color === 'black') {\n return 'rgb(0, 0, 0)';\n }\n return color;\n }\n\n function getStyle(videoElement, style) {\n const fontSize = videoElement.videoHeight / 15.0;\n if (style) {\n return 'font-size: ' + fontSize + 'px; font-family: Menlo, Consolas, \\'Cutive Mono\\', monospace; color: ' + ((style.foreground) ? createRGB(style.foreground) : 'rgb(255, 255, 255)') + '; font-style: ' + (style.italics ? 'italic' : 'normal') + '; text-decoration: ' + (style.underline ? 'underline' : 'none') + '; white-space: pre; background-color: ' + ((style.background) ? createRGB(style.background) : 'transparent') + ';';\n } else {\n return 'font-size: ' + fontSize + 'px; font-family: Menlo, Consolas, \\'Cutive Mono\\', monospace; justify-content: flex-start; text-align: left; color: rgb(255, 255, 255); font-style: normal; white-space: pre; line-height: normal; font-weight: normal; text-decoration: none; width: 100%; display: flex;';\n }\n }\n\n function ltrim(s) {\n return s.replace(/^\\s+/g, '');\n }\n\n function rtrim(s) {\n return s.replace(/\\s+$/g, '');\n }\n\n function createHTMLCaptionsFromScreen(videoElement, startTime, endTime, captionScreen) {\n let currRegion = null;\n let existingRegion = null;\n let lastRowHasText = false;\n let lastRowIndentL = -1;\n let currP = {start: startTime, end: endTime, spans: []};\n let currentStyle = 'style_cea608_white_black';\n const seenRegions = {};\n const styleStates = {};\n const regions = [];\n let r, s;\n\n for (r = 0; r < 15; ++r) {\n const row = captionScreen.rows[r];\n let line = '';\n let prevPenState = null;\n\n if (false === row.isEmpty()) {\n /* Row is not empty */\n\n /* Get indentation of this row */\n const rowIndent = checkIndent(row.chars);\n\n /* Create a new region is there is none */\n if (currRegion === null) {\n currRegion = { x: rowIndent, y1: r, y2: (r + 1), p: [] };\n }\n\n /* Check if indentation has changed and we had text of last row */\n if ((rowIndent !== lastRowIndentL) && lastRowHasText) {\n currRegion.p.push(currP);\n currP = { start: startTime, end: endTime, spans: [] };\n currRegion.y2 = r;\n currRegion.name = 'region_' + currRegion.x + '_' + currRegion.y1 + '_' + currRegion.y2;\n if (false === seenRegions.hasOwnProperty(currRegion.name)) {\n regions.push(currRegion);\n seenRegions[currRegion.name] = currRegion;\n } else {\n existingRegion = seenRegions[currRegion.name];\n existingRegion.p.contat(currRegion.p);\n }\n\n currRegion = { x: rowIndent, y1: r, y2: (r + 1), p: [] };\n }\n\n for (let c = 0; c < row.chars.length; ++c) {\n const uc = row.chars[c];\n const currPenState = uc.penState;\n if ((prevPenState === null) || (!currPenState.equals(prevPenState))) {\n if (line.trim().length > 0) {\n currP.spans.push({ name: currentStyle, line: line, row: r });\n line = '';\n }\n\n let currPenStateString = 'style_cea608_' + currPenState.foreground + '_' + currPenState.background;\n if (currPenState.underline) {\n currPenStateString += '_underline';\n }\n if (currPenState.italics) {\n currPenStateString += '_italics';\n }\n\n if (!styleStates.hasOwnProperty(currPenStateString)) {\n styleStates[currPenStateString] = JSON.parse(JSON.stringify(currPenState));\n }\n\n prevPenState = currPenState;\n\n currentStyle = currPenStateString;\n }\n\n line += uc.uchar;\n }\n\n if (line.trim().length > 0) {\n currP.spans.push({ name: currentStyle, line: line, row: r });\n }\n\n lastRowHasText = true;\n lastRowIndentL = rowIndent;\n } else {\n /* Row is empty */\n lastRowHasText = false;\n lastRowIndentL = -1;\n\n if (currRegion) {\n currRegion.p.push(currP);\n currP = { start: startTime, end: endTime, spans: [] };\n currRegion.y2 = r;\n currRegion.name = 'region_' + currRegion.x + '_' + currRegion.y1 + '_' + currRegion.y2;\n if (false === seenRegions.hasOwnProperty(currRegion.name)) {\n regions.push(currRegion);\n seenRegions[currRegion.name] = currRegion;\n } else {\n existingRegion = seenRegions[currRegion.name];\n existingRegion.p.contat(currRegion.p);\n }\n\n currRegion = null;\n }\n\n }\n }\n\n if (currRegion) {\n currRegion.p.push(currP);\n currRegion.y2 = r + 1;\n currRegion.name = 'region_' + currRegion.x + '_' + currRegion.y1 + '_' + currRegion.y2;\n if (false === seenRegions.hasOwnProperty(currRegion.name)) {\n regions.push(currRegion);\n seenRegions[currRegion.name] = currRegion;\n } else {\n existingRegion = seenRegions[currRegion.name];\n existingRegion.p.contat(currRegion.p);\n }\n\n currRegion = null;\n }\n\n const captionsArray = [];\n\n /* Loop thru regions */\n for (r = 0; r < regions.length; ++r) {\n const region = regions[r];\n\n const cueID = 'sub_cea608_' + (captionId++);\n const finalDiv = document.createElement('div');\n finalDiv.id = cueID;\n const cueRegionProperties = getRegionProperties(region);\n finalDiv.style.cssText = 'position: absolute; margin: 0; display: flex; box-sizing: border-box; pointer-events: none;' + cueRegionProperties;\n\n const bodyDiv = document.createElement('div');\n bodyDiv.className = 'paragraph bodyStyle';\n bodyDiv.style.cssText = getStyle(videoElement);\n\n const cueUniWrapper = document.createElement('div');\n cueUniWrapper.className = 'cueUniWrapper';\n cueUniWrapper.style.cssText = 'unicode-bidi: normal; direction: ltr;';\n\n for (let p = 0; p < region.p.length; ++p) {\n const ptag = region.p[p];\n let lastSpanRow = 0;\n for (s = 0; s < ptag.spans.length; ++s) {\n let span = ptag.spans[s];\n if (span.line.length > 0) {\n if ((s !== 0) && lastSpanRow != span.row) {\n const brElement = document.createElement('br');\n brElement.className = 'lineBreak';\n cueUniWrapper.appendChild(brElement);\n }\n let sameRow = false;\n if (lastSpanRow === span.row) {\n sameRow = true;\n }\n lastSpanRow = span.row;\n const spanStyle = styleStates[span.name];\n const spanElement = document.createElement('span');\n spanElement.className = 'spanPadding ' + span.name + ' customSpanColor';\n spanElement.style.cssText = getStyle(videoElement, spanStyle);\n /* If this is not the first span, and it's on the same\n * row as the last one */\n if ((s !== 0) && sameRow) {\n /* and it's the last span on this row */\n if (s === ptag.spans.length - 1) {\n /* trim only the right side */\n spanElement.textContent = rtrim(span.line);\n } else {\n /* don't trim at all */\n spanElement.textContent = span.line;\n }\n } else {\n /* if there is more than 1 span and this isn't the last span */\n if (ptag.spans.length > 1 && s < (ptag.spans.length - 1)) {\n /* Check if next text is on same row */\n if (span.row === ptag.spans[s + 1].row) {\n /* Next element on same row, trim start */\n spanElement.textContent = ltrim(span.line);\n } else {\n /* Different rows, trim both */\n spanElement.textContent = span.line.trim();\n }\n } else {\n spanElement.textContent = span.line.trim();\n }\n }\n cueUniWrapper.appendChild(spanElement);\n }\n }\n }\n\n bodyDiv.appendChild(cueUniWrapper);\n finalDiv.appendChild(bodyDiv);\n\n const fontSize = { 'bodyStyle': ['%', 90] };\n for (const s in styleStates) {\n if (styleStates.hasOwnProperty(s)) {\n fontSize[s] = ['%', 90];\n }\n }\n\n captionsArray.push({ type: 'html',\n start: startTime,\n end: endTime,\n cueHTMLElement: finalDiv,\n cueID: cueID,\n cellResolution: [32, 15],\n isFromCEA608: true,\n fontSize: fontSize,\n lineHeight: {},\n linePadding: {}\n });\n }\n return captionsArray;\n }\n\n instance = {\n createHTMLCaptionsFromScreen: createHTMLCaptionsFromScreen\n };\n return instance;\n}\n\nEmbeddedTextHtmlRender.__dashjs_factory_name = 'EmbeddedTextHtmlRender';\nexport default FactoryMaker.getSingletonFactory(EmbeddedTextHtmlRender);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport InitCache from '../utils/InitCache';\nimport SourceBufferSink from '../SourceBufferSink';\nimport TextController from '../../streaming/text/TextController';\nimport DashJSError from '../../streaming/vo/DashJSError';\nimport Errors from '../../core/errors/Errors';\n\nconst BUFFER_CONTROLLER_TYPE = 'NotFragmentedTextBufferController';\nfunction NotFragmentedTextBufferController(config) {\n\n config = config || {};\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n const textController = TextController(context).getInstance();\n\n const errHandler = config.errHandler;\n const streamInfo = config.streamInfo;\n const type = config.type;\n const mimeType = config.mimeType;\n const fragmentModel = config.fragmentModel;\n\n let instance,\n isBufferingCompleted,\n initialized,\n mediaSource,\n buffer,\n initCache;\n\n function setup() {\n initialized = false;\n mediaSource = null;\n isBufferingCompleted = false;\n\n eventBus.on(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.on(Events.INIT_FRAGMENT_LOADED, onInitFragmentLoaded, instance);\n }\n\n function getBufferControllerType() {\n return BUFFER_CONTROLLER_TYPE;\n }\n\n function initialize(source) {\n setMediaSource(source);\n initCache = InitCache(context).getInstance();\n }\n\n function createBuffer(mediaInfoArr) {\n const mediaInfo = mediaInfoArr[0];\n try {\n buffer = SourceBufferSink(context).create(mediaSource, mediaInfo);\n if (!initialized) {\n const textBuffer = buffer.getBuffer();\n if (textBuffer.hasOwnProperty(Constants.INITIALIZE)) {\n textBuffer.initialize(mimeType, streamInfo, mediaInfoArr, fragmentModel);\n }\n initialized = true;\n }\n return buffer;\n } catch (e) {\n if (mediaInfo && ((mediaInfo.isText) || (mediaInfo.codec.indexOf('codecs=\"stpp') !== -1) || (mediaInfo.codec.indexOf('codecs=\"wvtt') !== -1))) {\n try {\n buffer = textController.getTextSourceBuffer();\n } catch (e) {\n errHandler.error(new DashJSError(Errors.MEDIASOURCE_TYPE_UNSUPPORTED_CODE, Errors.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE + type + ' : ' + e.message));\n }\n } else {\n errHandler.error(new DashJSError(Errors.MEDIASOURCE_TYPE_UNSUPPORTED_CODE, Errors.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE + type));\n }\n }\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function getType() {\n return type;\n }\n\n function getBuffer() {\n return buffer;\n }\n\n function setMediaSource(value) {\n mediaSource = value;\n }\n\n function getMediaSource() {\n return mediaSource;\n }\n\n function getIsPruningInProgress() {\n return false;\n }\n\n function dischargePreBuffer() {\n }\n\n function getBufferLevel() {\n return 0;\n }\n\n function getIsBufferingCompleted() {\n return isBufferingCompleted;\n }\n\n function reset(errored) {\n eventBus.off(Events.DATA_UPDATE_COMPLETED, onDataUpdateCompleted, instance);\n eventBus.off(Events.INIT_FRAGMENT_LOADED, onInitFragmentLoaded, instance);\n\n if (!errored && buffer) {\n buffer.abort();\n buffer.reset();\n buffer = null;\n }\n }\n\n function onDataUpdateCompleted(e) {\n if (initCache.extract(streamInfo.id, e.currentRepresentation.id) !== null) {\n return;\n }\n\n // Representation has changed, clear buffer\n isBufferingCompleted = false;\n\n // // Text data file is contained in initialization segment\n eventBus.trigger(Events.INIT_FRAGMENT_NEEDED,\n { representationId: e.currentRepresentation.id, sender: instance },\n { streamId: streamInfo.id, mediaType: type }\n );\n }\n\n function appendInitSegment(representationId) {\n // If text data file already in cache then no need to append it again\n return initCache.extract(streamInfo.id, representationId) !== null;\n }\n\n function onInitFragmentLoaded(e) {\n if (!e.chunk.bytes) return;\n\n initCache.save(e.chunk);\n buffer.append(e.chunk);\n\n isBufferingCompleted = true;\n\n eventBus.trigger(Events.STREAM_COMPLETED,\n { request: e.request },\n { streamId: streamInfo.id, mediaType: type }\n );\n }\n\n function getRangeAt() {\n return null;\n }\n\n function updateTimestampOffset(MSETimeOffset) {\n if (buffer.timestampOffset !== MSETimeOffset && !isNaN(MSETimeOffset)) {\n buffer.timestampOffset = MSETimeOffset;\n }\n }\n\n instance = {\n getBufferControllerType: getBufferControllerType,\n initialize: initialize,\n createBuffer: createBuffer,\n getStreamId: getStreamId,\n getType: getType,\n getBuffer: getBuffer,\n getBufferLevel: getBufferLevel,\n setMediaSource: setMediaSource,\n getMediaSource: getMediaSource,\n getIsBufferingCompleted: getIsBufferingCompleted,\n getIsPruningInProgress: getIsPruningInProgress,\n dischargePreBuffer: dischargePreBuffer,\n appendInitSegment: appendInitSegment,\n getRangeAt: getRangeAt,\n reset: reset,\n updateTimestampOffset: updateTimestampOffset\n };\n\n setup();\n\n return instance;\n}\n\nNotFragmentedTextBufferController.__dashjs_factory_name = BUFFER_CONTROLLER_TYPE;\nexport default FactoryMaker.getClassFactory(NotFragmentedTextBufferController);\n",
@@ -471,11 +484,12 @@
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport TextSourceBuffer from './TextSourceBuffer';\nimport TextTracks from './TextTracks';\nimport VTTParser from '../utils/VTTParser';\nimport TTMLParser from '../utils/TTMLParser';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport { checkParameterType } from '../utils/SupervisorTools';\n\nfunction TextController() {\n\n let context = this.context;\n\n let instance,\n textSourceBuffer,\n errHandler,\n adapter,\n manifestModel,\n mediaController,\n videoModel,\n streamController,\n textTracks,\n vttParser,\n ttmlParser,\n eventBus,\n defaultSettings,\n initialSettingsSet,\n lastEnabledIndex,\n textDefaultEnabled, // this is used for default settings (each time a file is loaded, we check value of this settings )\n allTracksAreDisabled, // this is used for one session (when a file has been loaded, we use this settings to enable/disable text)\n forceTextStreaming,\n textTracksAdded,\n disableTextBeforeTextTracksAdded,\n previousPeriodSelectedTrack;\n\n function setup() {\n\n defaultSettings = null;\n lastEnabledIndex = -1;\n forceTextStreaming = false;\n textTracksAdded = false;\n initialSettingsSet = false;\n disableTextBeforeTextTracksAdded = false;\n textTracks = TextTracks(context).getInstance();\n vttParser = VTTParser(context).getInstance();\n ttmlParser = TTMLParser(context).getInstance();\n textSourceBuffer = TextSourceBuffer(context).getInstance();\n eventBus = EventBus(context).getInstance();\n\n textTracks.initialize();\n eventBus.on(Events.TEXT_TRACKS_QUEUE_INITIALIZED, onTextTracksAdded, instance);\n eventBus.on(Events.CURRENT_TRACK_CHANGED, onCurrentTrackChanged, instance);\n\n /*\n * register those event callbacks in order to detect switch of periods and set\n * correctly the selected track index in the new period.\n * there is different cases :\n * - switch occurs after a seek command from the user\n * - switch occurs but codecs in streams are different\n * - switch occurs and codecs in streams are not different\n */\n eventBus.on(Events.PERIOD_SWITCH_STARTED, onPeriodSwitchStarted, instance);\n eventBus.on(Events.STREAM_COMPLETED, onStreamCompleted, instance);\n eventBus.on(Events.PERIOD_SWITCH_COMPLETED, onPeriodSwitchCompleted, instance);\n\n resetInitialSettings();\n }\n\n function onPeriodSwitchStarted(e) {\n if (previousPeriodSelectedTrack === undefined && e.fromStreamInfo !== null /* test if this is the first period */) {\n previousPeriodSelectedTrack = this.getCurrentTrackIdx();\n }\n }\n\n function onStreamCompleted() {\n if (previousPeriodSelectedTrack === undefined) {\n previousPeriodSelectedTrack = this.getCurrentTrackIdx();\n }\n }\n\n function onPeriodSwitchCompleted() {\n if (previousPeriodSelectedTrack !== undefined) {\n this.setTextTrack(previousPeriodSelectedTrack);\n previousPeriodSelectedTrack = undefined;\n }\n }\n\n function setConfig(config) {\n if (!config) {\n return;\n }\n if (config.errHandler) {\n errHandler = config.errHandler;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.manifestModel) {\n manifestModel = config.manifestModel;\n }\n if (config.mediaController) {\n mediaController = config.mediaController;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.textTracks) {\n textTracks = config.textTracks;\n }\n if (config.vttParser) {\n vttParser = config.vttParser;\n }\n if (config.ttmlParser) {\n ttmlParser = config.ttmlParser;\n }\n\n // create config for source buffer\n textSourceBuffer.setConfig({\n errHandler: errHandler,\n adapter: adapter,\n manifestModel: manifestModel,\n mediaController: mediaController,\n videoModel: videoModel,\n streamController: streamController,\n textTracks: textTracks,\n vttParser: vttParser,\n ttmlParser: ttmlParser\n });\n }\n\n function getTextSourceBuffer() {\n return textSourceBuffer;\n }\n\n function getAllTracksAreDisabled() {\n return allTracksAreDisabled;\n }\n\n function addEmbeddedTrack(mediaInfo) {\n textSourceBuffer.addEmbeddedTrack(mediaInfo);\n }\n\n function setTextDefaultLanguage(lang) {\n checkParameterType(lang, 'string');\n if (!defaultSettings) {\n defaultSettings = {};\n }\n defaultSettings.lang = lang;\n initialSettingsSet = true;\n }\n\n function setInitialSettings(settings) {\n defaultSettings = settings;\n initialSettingsSet = true;\n }\n\n function getTextDefaultLanguage() {\n return defaultSettings && defaultSettings.lang || '';\n }\n\n function onTextTracksAdded(e) {\n let tracks = e.tracks;\n let index = e.index;\n\n if (defaultSettings) {\n tracks.some((item, idx) => {\n // matchSettings is compatible with setTextDefaultLanguage and setInitialSettings\n if (mediaController.matchSettings(defaultSettings, item)) {\n this.setTextTrack(idx);\n index = idx;\n return true;\n }\n });\n }\n\n if (textDefaultEnabled === false || ( textDefaultEnabled === undefined && !defaultSettings ) || disableTextBeforeTextTracksAdded) {\n // disable text at startup if explicitely configured with setTextDefaultEnabled(false) or if there is no defaultSettings (configuration or from domStorage)\n this.setTextTrack(-1);\n }\n\n lastEnabledIndex = index;\n eventBus.trigger(Events.TEXT_TRACKS_ADDED, {\n enabled: isTextEnabled(),\n index: index,\n tracks: tracks\n });\n textTracksAdded = true;\n }\n\n function onCurrentTrackChanged(event) {\n if (!initialSettingsSet && event && event.newMediaInfo) {\n let mediaInfo = event.newMediaInfo;\n if (mediaInfo.type === Constants.FRAGMENTED_TEXT) {\n defaultSettings = {\n lang: mediaInfo.lang,\n role: mediaInfo.roles[0],\n accessibility: mediaInfo.accessibility[0]\n };\n }\n }\n }\n\n function setTextDefaultEnabled(enable) {\n checkParameterType(enable,'boolean');\n textDefaultEnabled = enable;\n\n if (!textDefaultEnabled) {\n // disable text at startup\n this.setTextTrack(-1);\n } else {\n allTracksAreDisabled = false;\n }\n }\n\n function getTextDefaultEnabled() {\n return textDefaultEnabled === undefined ? false : textDefaultEnabled;\n }\n\n function enableText(enable) {\n checkParameterType(enable,'boolean');\n if (!textDefaultEnabled && enable) {\n textDefaultEnabled = true;\n }\n if (isTextEnabled() !== enable) {\n // change track selection\n if (enable) {\n // apply last enabled track\n this.setTextTrack(lastEnabledIndex);\n }\n\n if (!enable) {\n // keep last index and disable text track\n lastEnabledIndex = this.getCurrentTrackIdx();\n if (!textTracksAdded) {\n disableTextBeforeTextTracksAdded = true;\n } else {\n this.setTextTrack(-1);\n }\n }\n }\n }\n\n function isTextEnabled() {\n let enabled = true;\n if (allTracksAreDisabled && !forceTextStreaming) {\n enabled = false;\n }\n return enabled;\n }\n\n // when set to true ScheduleController will allow schedule of chunks even if tracks are all disabled. Allowing streaming to hidden track for external players to work with.\n function enableForcedTextStreaming(enable) {\n checkParameterType(enable,'boolean');\n forceTextStreaming = enable;\n }\n\n function setTextTrack(idx) {\n //For external time text file, the only action needed to change a track is marking the track mode to showing.\n // Fragmented text tracks need the additional step of calling TextController.setTextTrack();\n let config = textSourceBuffer.getConfig();\n let fragmentModel = config.fragmentModel;\n let fragmentedTracks = config.fragmentedTracks;\n let videoModel = config.videoModel;\n let mediaInfosArr,\n streamProcessor;\n\n allTracksAreDisabled = idx === -1 ? true : false;\n\n let oldTrackIdx = textTracks.getCurrentTrackIdx();\n if (oldTrackIdx !== idx) {\n if (allTracksAreDisabled && mediaController) {\n mediaController.saveTextSettingsDisabled();\n }\n textTracks.setModeForTrackIdx(oldTrackIdx, Constants.TEXT_HIDDEN);\n textTracks.setCurrentTrackIdx(idx);\n textTracks.setModeForTrackIdx(idx, Constants.TEXT_SHOWING);\n\n let currentTrackInfo = textTracks.getCurrentTrackInfo();\n\n if (currentTrackInfo && currentTrackInfo.isFragmented && !currentTrackInfo.isEmbedded) {\n for (let i = 0; i < fragmentedTracks.length; i++) {\n let mediaInfo = fragmentedTracks[i];\n if (currentTrackInfo.lang === mediaInfo.lang && currentTrackInfo.index === mediaInfo.index &&\n (mediaInfo.id ? currentTrackInfo.id === mediaInfo.id : currentTrackInfo.id === mediaInfo.index)) {\n let currentFragTrack = mediaController.getCurrentTrackFor(Constants.FRAGMENTED_TEXT, streamController.getActiveStreamInfo());\n if (mediaInfo !== currentFragTrack) {\n fragmentModel.abortRequests();\n fragmentModel.removeExecutedRequestsBeforeTime();\n textSourceBuffer.remove();\n textTracks.deleteCuesFromTrackIdx(oldTrackIdx);\n mediaController.setTrack(mediaInfo);\n textSourceBuffer.setCurrentFragmentedTrackIdx(i);\n } else if (oldTrackIdx === -1) {\n //in fragmented use case, if the user selects the older track (the one selected before disabled text track)\n //no CURRENT_TRACK_CHANGED event will be trigger, so dashHandler current time has to be updated and the scheduleController\n //has to be restarted.\n const streamProcessors = streamController.getActiveStreamProcessors();\n for (let i = 0; i < streamProcessors.length; i++) {\n if (streamProcessors[i].getType() === Constants.FRAGMENTED_TEXT) {\n streamProcessor = streamProcessors[i];\n break;\n }\n }\n streamProcessor.setBufferingTime(videoModel.getTime());\n streamProcessor.getScheduleController().start();\n }\n }\n }\n } else if (currentTrackInfo && !currentTrackInfo.isFragmented) {\n const streamProcessors = streamController.getActiveStreamProcessors();\n for (let i = 0; i < streamProcessors.length; i++) {\n if (streamProcessors[i].getType() === Constants.TEXT) {\n streamProcessor = streamProcessors[i];\n mediaInfosArr = streamProcessor.getMediaInfoArr();\n break;\n }\n }\n\n if (streamProcessor && mediaInfosArr) {\n for (let i = 0; i < mediaInfosArr.length; i++) {\n if (mediaInfosArr[i].index === currentTrackInfo.index && mediaInfosArr[i].lang === currentTrackInfo.lang) {\n streamProcessor.selectMediaInfo(mediaInfosArr[i]);\n break;\n }\n }\n }\n }\n }\n }\n\n function getCurrentTrackIdx() {\n return textTracks.getCurrentTrackIdx();\n }\n\n function resetInitialSettings() {\n allTracksAreDisabled = true;\n textTracksAdded = false;\n disableTextBeforeTextTracksAdded = false;\n }\n\n function reset() {\n resetInitialSettings();\n textSourceBuffer.resetEmbedded();\n textSourceBuffer.reset();\n }\n\n instance = {\n setConfig: setConfig,\n getTextSourceBuffer: getTextSourceBuffer,\n getAllTracksAreDisabled: getAllTracksAreDisabled,\n addEmbeddedTrack: addEmbeddedTrack,\n getTextDefaultLanguage: getTextDefaultLanguage,\n setTextDefaultLanguage: setTextDefaultLanguage,\n setTextDefaultEnabled: setTextDefaultEnabled,\n getTextDefaultEnabled: getTextDefaultEnabled,\n setInitialSettings: setInitialSettings,\n enableText: enableText,\n isTextEnabled: isTextEnabled,\n setTextTrack: setTextTrack,\n getCurrentTrackIdx: getCurrentTrackIdx,\n enableForcedTextStreaming: enableForcedTextStreaming,\n reset: reset\n };\n setup();\n return instance;\n}\n\nTextController.__dashjs_factory_name = 'TextController';\nexport default FactoryMaker.getSingletonFactory(TextController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport { HTTPRequest } from '../vo/metrics/HTTPRequest';\nimport TextTrackInfo from '../vo/TextTrackInfo';\nimport BoxParser from '../utils/BoxParser';\nimport CustomTimeRanges from '../utils/CustomTimeRanges';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport TextTracks from './TextTracks';\nimport EmbeddedTextHtmlRender from './EmbeddedTextHtmlRender';\nimport ISOBoxer from 'codem-isoboxer';\nimport cea608parser from '../../../externals/cea608-parser';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport DashJSError from '../vo/DashJSError';\nimport Errors from '../../core/errors/Errors';\n\nfunction TextSourceBuffer() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n let embeddedInitialized = false;\n\n let instance,\n logger,\n boxParser,\n errHandler,\n adapter,\n manifestModel,\n mediaController,\n parser,\n vttParser,\n ttmlParser,\n mediaInfos,\n textTracks,\n fragmentedFragmentModel,\n initializationSegmentReceived,\n timescale,\n fragmentedTracks,\n videoModel,\n streamController,\n firstFragmentedSubtitleStart,\n currFragmentedTrackIdx,\n embeddedTracks,\n embeddedTimescale,\n embeddedLastSequenceNumber,\n embeddedCea608FieldParsers,\n embeddedTextHtmlRender,\n mseTimeOffset;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n\n resetInitialSettings();\n }\n\n function resetFragmented () {\n fragmentedFragmentModel = null;\n timescale = NaN;\n fragmentedTracks = [];\n firstFragmentedSubtitleStart = null;\n initializationSegmentReceived = false;\n }\n\n function resetInitialSettings() {\n resetFragmented();\n\n mediaInfos = [];\n parser = null;\n }\n\n function initialize(mimeType, streamInfo, mediaInfoArr, fragmentModel) {\n if (!embeddedInitialized) {\n initEmbedded();\n }\n\n textTracks.setConfig({\n videoModel: videoModel\n });\n textTracks.initialize();\n\n if (!boxParser) {\n boxParser = BoxParser(context).getInstance();\n }\n\n addMediaInfos(mimeType, streamInfo, mediaInfoArr, fragmentModel);\n }\n\n function addMediaInfos(mimeType, streamInfo, mediaInfoArr, fragmentModel) {\n const isFragmented = !adapter.getIsTextTrack(mimeType);\n\n mediaInfos = mediaInfos.concat(mediaInfoArr);\n\n if (isFragmented) {\n fragmentedFragmentModel = fragmentModel;\n instance.buffered = CustomTimeRanges(context).create();\n fragmentedTracks = mediaController.getTracksFor(Constants.FRAGMENTED_TEXT, streamInfo);\n const currFragTrack = mediaController.getCurrentTrackFor(Constants.FRAGMENTED_TEXT, streamInfo);\n for (let i = 0; i < fragmentedTracks.length; i++) {\n if (fragmentedTracks[i] === currFragTrack) {\n setCurrentFragmentedTrackIdx(i);\n break;\n }\n }\n }\n\n for (let i = 0; i < mediaInfos.length; i++) {\n createTextTrackFromMediaInfo(null, mediaInfos[i]);\n }\n }\n\n function abort() {\n textTracks.deleteAllTextTracks();\n resetFragmented();\n boxParser = null;\n mediaInfos = [];\n }\n\n function reset() {\n resetInitialSettings();\n\n streamController = null;\n videoModel = null;\n textTracks = null;\n }\n\n function onVideoChunkReceived(e) {\n const chunk = e.chunk;\n\n if (chunk.mediaInfo.embeddedCaptions) {\n append(chunk.bytes, chunk);\n }\n }\n\n function initEmbedded() {\n embeddedTracks = [];\n textTracks = TextTracks(context).getInstance();\n textTracks.setConfig({\n videoModel: videoModel\n });\n textTracks.initialize();\n boxParser = BoxParser(context).getInstance();\n currFragmentedTrackIdx = null;\n embeddedTimescale = 0;\n embeddedCea608FieldParsers = [];\n embeddedLastSequenceNumber = null;\n embeddedInitialized = true;\n embeddedTextHtmlRender = EmbeddedTextHtmlRender(context).getInstance();\n\n const streamProcessors = streamController.getActiveStreamProcessors();\n for (const i in streamProcessors) {\n if (streamProcessors[i].getType() === 'video') {\n mseTimeOffset = streamProcessors[i].getRepresentationInfo().MSETimeOffset;\n break;\n }\n }\n\n eventBus.on(Events.VIDEO_CHUNK_RECEIVED, onVideoChunkReceived, this);\n eventBus.on(Events.BUFFER_CLEARED, onVideoBufferCleared, this);\n }\n\n function resetEmbedded() {\n eventBus.off(Events.VIDEO_CHUNK_RECEIVED, onVideoChunkReceived, this);\n eventBus.off(Events.BUFFER_CLEARED, onVideoBufferCleared, this);\n if (textTracks) {\n textTracks.deleteAllTextTracks();\n }\n embeddedInitialized = false;\n embeddedTracks = [];\n embeddedCea608FieldParsers = [null, null];\n embeddedLastSequenceNumber = null;\n }\n\n function addEmbeddedTrack(mediaInfo) {\n if (!embeddedInitialized) {\n initEmbedded();\n }\n if (mediaInfo) {\n if (mediaInfo.id === Constants.CC1 || mediaInfo.id === Constants.CC3) {\n for (let i = 0; i < embeddedTracks.length; i++) {\n if (embeddedTracks[i].id === mediaInfo.id) {\n return;\n }\n }\n embeddedTracks.push(mediaInfo);\n } else {\n logger.warn('Embedded track ' + mediaInfo.id + ' not supported!');\n }\n }\n }\n\n function setConfig(config) {\n if (!config) {\n return;\n }\n if (config.errHandler) {\n errHandler = config.errHandler;\n }\n if (config.adapter) {\n adapter = config.adapter;\n }\n if (config.manifestModel) {\n manifestModel = config.manifestModel;\n }\n if (config.mediaController) {\n mediaController = config.mediaController;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n if (config.streamController) {\n streamController = config.streamController;\n }\n if (config.textTracks) {\n textTracks = config.textTracks;\n }\n if (config.vttParser) {\n vttParser = config.vttParser;\n }\n if (config.ttmlParser) {\n ttmlParser = config.ttmlParser;\n }\n }\n\n function getConfig() {\n const config = {\n fragmentModel: fragmentedFragmentModel,\n fragmentedTracks: fragmentedTracks,\n videoModel: videoModel\n };\n\n return config;\n }\n\n function setCurrentFragmentedTrackIdx(idx) {\n currFragmentedTrackIdx = idx;\n }\n\n function createTextTrackFromMediaInfo(captionData, mediaInfo) {\n const textTrackInfo = new TextTrackInfo();\n const trackKindMap = { subtitle: 'subtitles', caption: 'captions' }; //Dash Spec has no \"s\" on end of KIND but HTML needs plural.\n const getKind = function () {\n let kind = (mediaInfo.roles.length > 0) ? trackKindMap[mediaInfo.roles[0]] : trackKindMap.caption;\n kind = (kind === trackKindMap.caption || kind === trackKindMap.subtitle) ? kind : trackKindMap.caption;\n return kind;\n };\n\n const checkTTML = function () {\n let ttml = false;\n if (mediaInfo.codec && mediaInfo.codec.search(Constants.STPP) >= 0) {\n ttml = true;\n }\n if (mediaInfo.mimeType && mediaInfo.mimeType.search(Constants.TTML) >= 0) {\n ttml = true;\n }\n return ttml;\n };\n\n textTrackInfo.captionData = captionData;\n textTrackInfo.lang = mediaInfo.lang;\n textTrackInfo.labels = mediaInfo.labels;\n textTrackInfo.id = mediaInfo.id ? mediaInfo.id : mediaInfo.index; // AdaptationSet id (an unsigned int) as it's optional parameter, use mediaInfo.index\n textTrackInfo.index = mediaInfo.index; // AdaptationSet index in manifest\n textTrackInfo.isTTML = checkTTML();\n textTrackInfo.defaultTrack = getIsDefault(mediaInfo);\n textTrackInfo.isFragmented = !adapter.getIsTextTrack(mediaInfo.mimeType);\n textTrackInfo.isEmbedded = mediaInfo.isEmbedded ? true : false;\n textTrackInfo.kind = getKind();\n textTrackInfo.roles = mediaInfo.roles;\n textTrackInfo.accessibility = mediaInfo.accessibility;\n const totalNrTracks = (mediaInfos ? mediaInfos.length : 0) + embeddedTracks.length;\n textTracks.addTextTrack(textTrackInfo, totalNrTracks);\n }\n\n function append(bytes, chunk) {\n let result,\n sampleList,\n i, j, k,\n samplesInfo,\n ccContent;\n const mediaInfo = chunk.mediaInfo;\n const mediaType = mediaInfo.type;\n const mimeType = mediaInfo.mimeType;\n const codecType = mediaInfo.codec || mimeType;\n if (!codecType) {\n logger.error('No text type defined');\n return;\n }\n\n if (mediaType === Constants.FRAGMENTED_TEXT) {\n if (!initializationSegmentReceived && chunk.segmentType === 'InitializationSegment') {\n initializationSegmentReceived = true;\n timescale = boxParser.getMediaTimescaleFromMoov(bytes);\n } else {\n if (!initializationSegmentReceived) {\n return;\n }\n samplesInfo = boxParser.getSamplesInfo(bytes);\n sampleList = samplesInfo.sampleList;\n if (firstFragmentedSubtitleStart === null && sampleList.length > 0) {\n firstFragmentedSubtitleStart = sampleList[0].cts - chunk.start * timescale;\n }\n if (codecType.search(Constants.STPP) >= 0) {\n parser = parser !== null ? parser : getParser(codecType);\n for (i = 0; i < sampleList.length; i++) {\n const sample = sampleList[i];\n const sampleStart = sample.cts;\n const sampleRelStart = sampleStart - firstFragmentedSubtitleStart;\n this.buffered.add(sampleRelStart / timescale, (sampleRelStart + sample.duration) / timescale);\n const dataView = new DataView(bytes, sample.offset, sample.subSizes[0]);\n ccContent = ISOBoxer.Utils.dataViewToString(dataView, Constants.UTF8);\n const images = [];\n let subOffset = sample.offset + sample.subSizes[0];\n for (j = 1; j < sample.subSizes.length; j++) {\n const inData = new Uint8Array(bytes, subOffset, sample.subSizes[j]);\n const raw = String.fromCharCode.apply(null, inData);\n images.push(raw);\n subOffset += sample.subSizes[j];\n }\n try {\n // Only used for Miscrosoft Smooth Streaming support - caption time is relative to sample time. In this case, we apply an offset.\n const manifest = manifestModel.getValue();\n const offsetTime = manifest.ttmlTimeIsRelative ? sampleStart / timescale : 0;\n result = parser.parse(ccContent, offsetTime, sampleStart / timescale, (sampleStart + sample.duration) / timescale, images);\n textTracks.addCaptions(currFragmentedTrackIdx, firstFragmentedSubtitleStart / timescale, result);\n } catch (e) {\n fragmentedFragmentModel.removeExecutedRequestsBeforeTime();\n this.remove();\n logger.error('TTML parser error: ' + e.message);\n }\n }\n } else {\n // WebVTT case\n const captionArray = [];\n for (i = 0 ; i < sampleList.length; i++) {\n const sample = sampleList[i];\n sample.cts -= firstFragmentedSubtitleStart;\n this.buffered.add(sample.cts / timescale, (sample.cts + sample.duration) / timescale);\n const sampleData = bytes.slice(sample.offset, sample.offset + sample.size);\n // There are boxes inside the sampleData, so we need a ISOBoxer to get at it.\n const sampleBoxes = ISOBoxer.parseBuffer(sampleData);\n\n for (j = 0 ; j < sampleBoxes.boxes.length; j++) {\n const box1 = sampleBoxes.boxes[j];\n logger.debug('VTT box1: ' + box1.type);\n if (box1.type === 'vtte') {\n continue; //Empty box\n }\n if (box1.type === 'vttc') {\n logger.debug('VTT vttc boxes.length = ' + box1.boxes.length);\n for (k = 0 ; k < box1.boxes.length; k++) {\n const box2 = box1.boxes[k];\n logger.debug('VTT box2: ' + box2.type);\n if (box2.type === 'payl') {\n const cue_text = box2.cue_text;\n logger.debug('VTT cue_text = ' + cue_text);\n const start_time = sample.cts / timescale;\n const end_time = (sample.cts + sample.duration) / timescale;\n captionArray.push({\n start: start_time,\n end: end_time,\n data: cue_text,\n styles: {}\n });\n logger.debug('VTT ' + start_time + '-' + end_time + ' : ' + cue_text);\n }\n }\n }\n }\n }\n if (captionArray.length > 0) {\n textTracks.addCaptions(currFragmentedTrackIdx, 0, captionArray);\n }\n }\n }\n } else if (mediaType === Constants.TEXT) {\n const dataView = new DataView(bytes, 0, bytes.byteLength);\n ccContent = ISOBoxer.Utils.dataViewToString(dataView, Constants.UTF8);\n\n try {\n result = getParser(codecType).parse(ccContent, 0);\n textTracks.addCaptions(textTracks.getCurrentTrackIdx(), 0, result);\n } catch (e) {\n errHandler.error(new DashJSError(Errors.TIMED_TEXT_ERROR_ID_PARSE_CODE, Errors.TIMED_TEXT_ERROR_MESSAGE_PARSE + e.message, ccContent));\n }\n } else if (mediaType === Constants.VIDEO) { //embedded text\n if (chunk.segmentType === HTTPRequest.INIT_SEGMENT_TYPE) {\n if (embeddedTimescale === 0) {\n embeddedTimescale = boxParser.getMediaTimescaleFromMoov(bytes);\n for (i = 0; i < embeddedTracks.length; i++) {\n createTextTrackFromMediaInfo(null, embeddedTracks[i]);\n }\n }\n } else { // MediaSegment\n if (embeddedTimescale === 0) {\n logger.warn('CEA-608: No timescale for embeddedTextTrack yet');\n return;\n }\n const makeCueAdderForIndex = function (self, trackIndex) {\n function newCue(startTime, endTime, captionScreen) {\n let captionsArray = null;\n if (videoModel.getTTMLRenderingDiv()) {\n captionsArray = embeddedTextHtmlRender.createHTMLCaptionsFromScreen(videoModel.getElement(), startTime, endTime, captionScreen);\n } else {\n const text = captionScreen.getDisplayText();\n captionsArray = [{\n start: startTime,\n end: endTime,\n data: text,\n styles: {}\n }];\n }\n if (captionsArray) {\n textTracks.addCaptions(trackIndex, 0, captionsArray);\n }\n }\n return newCue;\n };\n\n samplesInfo = boxParser.getSamplesInfo(bytes);\n\n const sequenceNumber = samplesInfo.lastSequenceNumber;\n\n if (!embeddedCea608FieldParsers[0] && !embeddedCea608FieldParsers[1]) {\n // Time to setup the CEA-608 parsing\n let field, handler, trackIdx;\n for (i = 0; i < embeddedTracks.length; i++) {\n if (embeddedTracks[i].id === Constants.CC1) {\n field = 0;\n trackIdx = textTracks.getTrackIdxForId(Constants.CC1);\n } else if (embeddedTracks[i].id === Constants.CC3) {\n field = 1;\n trackIdx = textTracks.getTrackIdxForId(Constants.CC3);\n }\n if (trackIdx === -1) {\n logger.warn('CEA-608: data before track is ready.');\n return;\n }\n handler = makeCueAdderForIndex(this, trackIdx);\n embeddedCea608FieldParsers[i] = new cea608parser.Cea608Parser(i + 1, {\n 'newCue': handler\n }, null);\n }\n }\n\n if (embeddedTimescale) {\n if (embeddedLastSequenceNumber !== null && sequenceNumber !== embeddedLastSequenceNumber + samplesInfo.numSequences) {\n for (i = 0; i < embeddedCea608FieldParsers.length; i++) {\n if (embeddedCea608FieldParsers[i]) {\n embeddedCea608FieldParsers[i].reset();\n }\n }\n }\n\n const allCcData = extractCea608Data(bytes, samplesInfo.sampleList);\n\n for (let fieldNr = 0; fieldNr < embeddedCea608FieldParsers.length; fieldNr++) {\n const ccData = allCcData.fields[fieldNr];\n const fieldParser = embeddedCea608FieldParsers[fieldNr];\n if (fieldParser) {\n for (i = 0; i < ccData.length; i++) {\n fieldParser.addData(ccData[i][0] / embeddedTimescale, ccData[i][1]);\n }\n }\n }\n embeddedLastSequenceNumber = sequenceNumber;\n }\n }\n }\n }\n /**\n * Extract CEA-608 data from a buffer of data.\n * @param {ArrayBuffer} data\n * @param {Array} samples cue information\n * @returns {Object|null} ccData corresponding to one segment.\n */\n function extractCea608Data(data, samples) {\n if (samples.length === 0) {\n return null;\n }\n\n const allCcData = {\n splits: [],\n fields: [[], []]\n };\n const raw = new DataView(data);\n for (let i = 0; i < samples.length; i++) {\n const sample = samples[i];\n const cea608Ranges = cea608parser.findCea608Nalus(raw, sample.offset, sample.size);\n let lastSampleTime = null;\n let idx = 0;\n for (let j = 0; j < cea608Ranges.length; j++) {\n const ccData = cea608parser.extractCea608DataFromRange(raw, cea608Ranges[j]);\n for (let k = 0; k < 2; k++) {\n if (ccData[k].length > 0) {\n if (sample.cts !== lastSampleTime) {\n idx = 0;\n } else {\n idx += 1;\n }\n allCcData.fields[k].push([sample.cts + (mseTimeOffset * embeddedTimescale), ccData[k], idx]);\n lastSampleTime = sample.cts;\n }\n }\n }\n }\n\n // Sort by sampleTime ascending order\n // If two packets have the same sampleTime, use them in the order\n // they were received\n allCcData.fields.forEach(function sortField(field) {\n field.sort(function (a, b) {\n if (a[0] === b[0]) {\n return a[2] - b[2];\n }\n return a[0] - b[0];\n });\n });\n\n return allCcData;\n }\n\n function getIsDefault(mediaInfo) {\n //TODO How to tag default. currently same order as listed in manifest.\n // Is there a way to mark a text adaptation set as the default one? DASHIF meeting talk about using role which is being used for track KIND\n // Eg subtitles etc. You can have multiple role tags per adaptation Not defined in the spec yet.\n let isDefault = false;\n if (embeddedTracks.length > 1 && mediaInfo.isEmbedded) {\n isDefault = (mediaInfo.id && mediaInfo.id === Constants.CC1); // CC1 if both CC1 and CC3 exist\n } else if (embeddedTracks.length === 1) {\n if (mediaInfo.id && typeof mediaInfo.id === 'string' && mediaInfo.id.substring(0, 2) === 'CC') { // Either CC1 or CC3\n isDefault = true;\n }\n } else if (embeddedTracks.length === 0) {\n isDefault = (mediaInfo.index === mediaInfos[0].index);\n }\n return isDefault;\n }\n\n function getParser(codecType) {\n let parser;\n if (codecType.search(Constants.VTT) >= 0) {\n parser = vttParser;\n } else if (codecType.search(Constants.TTML) >= 0 || codecType.search(Constants.STPP) >= 0) {\n parser = ttmlParser;\n }\n return parser;\n }\n\n function remove(start, end) {\n //if start and end are not defined, remove all\n if ((start === undefined) && (start === end)) {\n start = this.buffered.start(0);\n end = this.buffered.end(this.buffered.length - 1);\n }\n this.buffered.remove(start, end);\n }\n\n function onVideoBufferCleared(e) {\n embeddedTracks.forEach(function (track) {\n const trackIdx = textTracks.getTrackIdxForId(track.id);\n if (trackIdx >= 0) {\n textTracks.deleteCuesFromTrackIdx(trackIdx, e.from, e.to);\n }\n });\n }\n\n instance = {\n initialize: initialize,\n append: append,\n abort: abort,\n addEmbeddedTrack: addEmbeddedTrack,\n resetEmbedded: resetEmbedded,\n setConfig: setConfig,\n getConfig: getConfig,\n setCurrentFragmentedTrackIdx: setCurrentFragmentedTrackIdx,\n remove: remove,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nTextSourceBuffer.__dashjs_factory_name = 'TextSourceBuffer';\nexport default FactoryMaker.getSingletonFactory(TextSourceBuffer);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport { renderHTML } from 'imsc';\nimport { checkParameterType } from '../utils/SupervisorTools';\n\nfunction TextTracks() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n logger,\n Cue,\n videoModel,\n textTrackQueue,\n trackElementArr,\n currentTrackIdx,\n actualVideoLeft,\n actualVideoTop,\n actualVideoWidth,\n actualVideoHeight,\n captionContainer,\n videoSizeCheckInterval,\n fullscreenAttribute,\n displayCCOnTop,\n previousISDState,\n topZIndex,\n resizeObserver;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function initialize() {\n if (typeof window === 'undefined' || typeof navigator === 'undefined') {\n return;\n }\n\n Cue = window.VTTCue || window.TextTrackCue;\n textTrackQueue = [];\n trackElementArr = [];\n currentTrackIdx = -1;\n actualVideoLeft = 0;\n actualVideoTop = 0;\n actualVideoWidth = 0;\n actualVideoHeight = 0;\n captionContainer = null;\n videoSizeCheckInterval = null;\n displayCCOnTop = false;\n topZIndex = 2147483647;\n previousISDState = null;\n\n if (document.fullscreenElement !== undefined) {\n fullscreenAttribute = 'fullscreenElement'; // Standard and Edge\n } else if (document.webkitIsFullScreen !== undefined) {\n fullscreenAttribute = 'webkitIsFullScreen'; // Chrome and Safari (and Edge)\n } else if (document.msFullscreenElement) { // IE11\n fullscreenAttribute = 'msFullscreenElement';\n } else if (document.mozFullScreen) { // Firefox\n fullscreenAttribute = 'mozFullScreen';\n }\n }\n\n function createTrackForUserAgent (i) {\n const kind = textTrackQueue[i].kind;\n const label = textTrackQueue[i].id !== undefined ? textTrackQueue[i].id : textTrackQueue[i].lang;\n const lang = textTrackQueue[i].lang;\n const isTTML = textTrackQueue[i].isTTML;\n const isEmbedded = textTrackQueue[i].isEmbedded;\n const track = videoModel.addTextTrack(kind, label, lang, isTTML, isEmbedded);\n return track;\n }\n\n function setDisplayCConTop(value) {\n checkParameterType(value, 'boolean');\n displayCCOnTop = value;\n if (!captionContainer || document[fullscreenAttribute]) {\n return;\n }\n captionContainer.style.zIndex = value ? topZIndex : null;\n }\n\n function addTextTrack(textTrackInfoVO, totalTextTracks) {\n if (textTrackQueue.length === totalTextTracks) {\n logger.error('Trying to add too many tracks.');\n return;\n }\n\n textTrackQueue.push(textTrackInfoVO);\n\n if (textTrackQueue.length === totalTextTracks) {\n textTrackQueue.sort(function (a, b) { //Sort in same order as in manifest\n return a.index - b.index;\n });\n captionContainer = videoModel.getTTMLRenderingDiv();\n let defaultIndex = -1;\n for (let i = 0 ; i < textTrackQueue.length; i++) {\n const track = createTrackForUserAgent.call(this, i);\n trackElementArr.push(track); //used to remove tracks from video element when added manually\n\n if (textTrackQueue[i].defaultTrack) {\n // track.default is an object property identifier that is a reserved word\n // The following jshint directive is used to suppressed the warning \"Expected an identifier and instead saw 'default' (a reserved word)\"\n /*jshint -W024 */\n track.default = true;\n defaultIndex = i;\n }\n\n const textTrack = getTrackByIdx(i);\n if (textTrack) {\n //each time a track is created, its mode should be showing by default\n //sometime, it's not on Chrome\n textTrack.mode = Constants.TEXT_SHOWING;\n if (captionContainer && (textTrackQueue[i].isTTML || textTrackQueue[i].isEmbedded)) {\n textTrack.renderingType = 'html';\n } else {\n textTrack.renderingType = 'default';\n }\n }\n this.addCaptions(i, 0, textTrackQueue[i].captionData);\n eventBus.trigger(Events.TEXT_TRACK_ADDED);\n }\n\n //set current track index in textTrackQueue array\n setCurrentTrackIdx.call(this, defaultIndex);\n\n if (defaultIndex >= 0) {\n\n let onMetadataLoaded = function () {\n const track = getTrackByIdx(defaultIndex);\n if (track) {\n checkVideoSize.call(this, track, true);\n }\n eventBus.off(Events.PLAYBACK_METADATA_LOADED, onMetadataLoaded, this);\n };\n\n eventBus.on(Events.PLAYBACK_METADATA_LOADED, onMetadataLoaded, this);\n\n for (let idx = 0; idx < textTrackQueue.length; idx++) {\n const videoTextTrack = getTrackByIdx(idx);\n if (videoTextTrack) {\n videoTextTrack.mode = (idx === defaultIndex) ? Constants.TEXT_SHOWING : Constants.TEXT_HIDDEN;\n }\n }\n }\n\n eventBus.trigger(Events.TEXT_TRACKS_QUEUE_INITIALIZED, {\n index: currentTrackIdx,\n tracks: textTrackQueue\n }); //send default idx.\n }\n }\n\n function getVideoVisibleVideoSize(viewWidth, viewHeight, videoWidth, videoHeight, aspectRatio, use80Percent) {\n const viewAspectRatio = viewWidth / viewHeight;\n const videoAspectRatio = videoWidth / videoHeight;\n\n let videoPictureWidth = 0;\n let videoPictureHeight = 0;\n\n if (viewAspectRatio > videoAspectRatio) {\n videoPictureHeight = viewHeight;\n videoPictureWidth = (videoPictureHeight / videoHeight) * videoWidth;\n } else {\n videoPictureWidth = viewWidth;\n videoPictureHeight = (videoPictureWidth / videoWidth) * videoHeight;\n }\n\n let videoPictureXAspect = 0;\n let videoPictureYAspect = 0;\n let videoPictureWidthAspect = 0;\n let videoPictureHeightAspect = 0;\n const videoPictureAspect = videoPictureWidth / videoPictureHeight;\n\n if (videoPictureAspect > aspectRatio) {\n videoPictureHeightAspect = videoPictureHeight;\n videoPictureWidthAspect = videoPictureHeight * aspectRatio;\n } else {\n videoPictureWidthAspect = videoPictureWidth;\n videoPictureHeightAspect = videoPictureWidth / aspectRatio;\n }\n videoPictureXAspect = (viewWidth - videoPictureWidthAspect) / 2;\n videoPictureYAspect = (viewHeight - videoPictureHeightAspect) / 2;\n\n if (use80Percent) {\n return {\n x: videoPictureXAspect + (videoPictureWidthAspect * 0.1),\n y: videoPictureYAspect + (videoPictureHeightAspect * 0.1),\n w: videoPictureWidthAspect * 0.8,\n h: videoPictureHeightAspect * 0.8\n }; /* Maximal picture size in videos aspect ratio */\n } else {\n return {\n x: videoPictureXAspect,\n y: videoPictureYAspect,\n w: videoPictureWidthAspect,\n h: videoPictureHeightAspect\n }; /* Maximal picture size in videos aspect ratio */\n }\n }\n\n function checkVideoSize(track, forceDrawing) {\n const clientWidth = videoModel.getClientWidth();\n const clientHeight = videoModel.getClientHeight();\n const videoWidth = videoModel.getVideoWidth();\n const videoHeight = videoModel.getVideoHeight();\n const videoOffsetTop = videoModel.getVideoRelativeOffsetTop();\n const videoOffsetLeft = videoModel.getVideoRelativeOffsetLeft();\n\n if (videoWidth !== 0 && videoHeight !== 0) {\n\n let aspectRatio = videoWidth / videoHeight;\n let use80Percent = false;\n if (track.isFromCEA608) {\n // If this is CEA608 then use predefined aspect ratio\n aspectRatio = 3.5 / 3.0;\n use80Percent = true;\n }\n\n const realVideoSize = getVideoVisibleVideoSize.call(this, clientWidth, clientHeight, videoWidth, videoHeight, aspectRatio, use80Percent);\n\n const newVideoWidth = realVideoSize.w;\n const newVideoHeight = realVideoSize.h;\n const newVideoLeft = realVideoSize.x;\n const newVideoTop = realVideoSize.y;\n\n if (newVideoWidth != actualVideoWidth || newVideoHeight != actualVideoHeight || newVideoLeft != actualVideoLeft || newVideoTop != actualVideoTop || forceDrawing) {\n actualVideoLeft = newVideoLeft + videoOffsetLeft;\n actualVideoTop = newVideoTop + videoOffsetTop;\n actualVideoWidth = newVideoWidth;\n actualVideoHeight = newVideoHeight;\n\n if (captionContainer) {\n const containerStyle = captionContainer.style;\n if (containerStyle) {\n containerStyle.left = actualVideoLeft + 'px';\n containerStyle.top = actualVideoTop + 'px';\n containerStyle.width = actualVideoWidth + 'px';\n containerStyle.height = actualVideoHeight + 'px';\n containerStyle.zIndex = (fullscreenAttribute && document[fullscreenAttribute]) || displayCCOnTop ? topZIndex : null;\n eventBus.trigger(Events.CAPTION_CONTAINER_RESIZE);\n }\n }\n\n // Video view has changed size, so resize any active cues\n const activeCues = track.activeCues;\n if (activeCues) {\n const len = activeCues.length;\n for (let i = 0; i < len; ++i) {\n const cue = activeCues[i];\n cue.scaleCue(cue);\n }\n }\n }\n }\n }\n\n function scaleCue(activeCue) {\n const videoWidth = actualVideoWidth;\n const videoHeight = actualVideoHeight;\n let key,\n replaceValue,\n valueFontSize,\n valueLineHeight,\n elements;\n\n if (activeCue.cellResolution) {\n const cellUnit = [videoWidth / activeCue.cellResolution[0], videoHeight / activeCue.cellResolution[1]];\n if (activeCue.linePadding) {\n for (key in activeCue.linePadding) {\n if (activeCue.linePadding.hasOwnProperty(key)) {\n const valueLinePadding = activeCue.linePadding[key];\n replaceValue = (valueLinePadding * cellUnit[0]).toString();\n // Compute the CellResolution unit in order to process properties using sizing (fontSize, linePadding, etc).\n const elementsSpan = document.getElementsByClassName('spanPadding');\n for (let i = 0; i < elementsSpan.length; i++) {\n elementsSpan[i].style.cssText = elementsSpan[i].style.cssText.replace(/(padding-left\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi, '$1' + replaceValue);\n elementsSpan[i].style.cssText = elementsSpan[i].style.cssText.replace(/(padding-right\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi, '$1' + replaceValue);\n }\n }\n }\n }\n\n if (activeCue.fontSize) {\n for (key in activeCue.fontSize) {\n if (activeCue.fontSize.hasOwnProperty(key)) {\n if (activeCue.fontSize[key][0] === '%') {\n valueFontSize = activeCue.fontSize[key][1] / 100;\n } else if (activeCue.fontSize[key][0] === 'c') {\n valueFontSize = activeCue.fontSize[key][1];\n }\n\n replaceValue = (valueFontSize * cellUnit[1]).toString();\n\n if (key !== 'defaultFontSize') {\n elements = document.getElementsByClassName(key);\n } else {\n elements = document.getElementsByClassName('paragraph');\n }\n\n for (let j = 0; j < elements.length; j++) {\n elements[j].style.cssText = elements[j].style.cssText.replace(/(font-size\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi, '$1' + replaceValue);\n }\n }\n }\n\n if (activeCue.lineHeight) {\n for (key in activeCue.lineHeight) {\n if (activeCue.lineHeight.hasOwnProperty(key)) {\n if (activeCue.lineHeight[key][0] === '%') {\n valueLineHeight = activeCue.lineHeight[key][1] / 100;\n } else if (activeCue.fontSize[key][0] === 'c') {\n valueLineHeight = activeCue.lineHeight[key][1];\n }\n\n replaceValue = (valueLineHeight * cellUnit[1]).toString();\n elements = document.getElementsByClassName(key);\n for (let k = 0; k < elements.length; k++) {\n elements[k].style.cssText = elements[k].style.cssText.replace(/(line-height\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi, '$1' + replaceValue);\n }\n }\n }\n }\n }\n }\n\n if (activeCue.isd) {\n let htmlCaptionDiv = document.getElementById(activeCue.cueID);\n if (htmlCaptionDiv) {\n captionContainer.removeChild(htmlCaptionDiv);\n }\n renderCaption(activeCue);\n }\n }\n\n function renderCaption(cue) {\n if (captionContainer) {\n const finalCue = document.createElement('div');\n captionContainer.appendChild(finalCue);\n previousISDState = renderHTML(cue.isd, finalCue, function (uri) {\n const imsc1ImgUrnTester = /^(urn:)(mpeg:[a-z0-9][a-z0-9-]{0,31}:)(subs:)([0-9]+)$/;\n const smpteImgUrnTester = /^#(.*)$/;\n if (imsc1ImgUrnTester.test(uri)) {\n const match = imsc1ImgUrnTester.exec(uri);\n const imageId = parseInt(match[4], 10) - 1;\n const imageData = btoa(cue.images[imageId]);\n const dataUrl = 'data:image/png;base64,' + imageData;\n return dataUrl;\n } else if (smpteImgUrnTester.test(uri)) {\n const match = smpteImgUrnTester.exec(uri);\n const imageId = match[1];\n const dataUrl = 'data:image/png;base64,' + cue.embeddedImages[imageId];\n return dataUrl;\n } else {\n return null;\n }\n }, captionContainer.clientHeight, captionContainer.clientWidth, false/*displayForcedOnlyMode*/, function (err) {\n logger.info('renderCaption :', err);\n //TODO add ErrorHandler management\n }, previousISDState, true /*enableRollUp*/);\n finalCue.id = cue.cueID;\n eventBus.trigger(Events.CAPTION_RENDERED, { captionDiv: finalCue, currentTrackIdx });\n }\n }\n\n /*\n * Add captions to track, store for later adding, or add captions added before\n */\n function addCaptions(trackIdx, timeOffset, captionData) {\n const track = getTrackByIdx(trackIdx);\n const self = this;\n\n if (!track) {\n return;\n }\n\n if (!Array.isArray(captionData) || captionData.length === 0) {\n return;\n }\n\n for (let item = 0; item < captionData.length; item++) {\n let cue;\n const currentItem = captionData[item];\n\n track.cellResolution = currentItem.cellResolution;\n track.isFromCEA608 = currentItem.isFromCEA608;\n\n if (currentItem.type === 'html' && captionContainer) {\n cue = new Cue(currentItem.start - timeOffset, currentItem.end - timeOffset, '');\n cue.cueHTMLElement = currentItem.cueHTMLElement;\n cue.isd = currentItem.isd;\n cue.images = currentItem.images;\n cue.embeddedImages = currentItem.embeddedImages;\n cue.cueID = currentItem.cueID;\n cue.scaleCue = scaleCue.bind(self);\n //useful parameters for cea608 subtitles, not for TTML one.\n cue.cellResolution = currentItem.cellResolution;\n cue.lineHeight = currentItem.lineHeight;\n cue.linePadding = currentItem.linePadding;\n cue.fontSize = currentItem.fontSize;\n\n captionContainer.style.left = actualVideoLeft + 'px';\n captionContainer.style.top = actualVideoTop + 'px';\n captionContainer.style.width = actualVideoWidth + 'px';\n captionContainer.style.height = actualVideoHeight + 'px';\n\n cue.onenter = function () {\n if (track.mode === Constants.TEXT_SHOWING) {\n if (this.isd) {\n renderCaption(this);\n logger.debug('Cue enter id:' + this.cueID);\n } else {\n captionContainer.appendChild(this.cueHTMLElement);\n scaleCue.call(self, this);\n eventBus.trigger(Events.CAPTION_RENDERED, { captionDiv: this.cueHTMLElement, currentTrackIdx });\n }\n }\n };\n\n cue.onexit = function () {\n if (captionContainer) {\n const divs = captionContainer.childNodes;\n for (let i = 0; i < divs.length; ++i) {\n if (divs[i].id === this.cueID) {\n logger.debug('Cue exit id:' + divs[i].id);\n captionContainer.removeChild(divs[i]);\n --i;\n }\n }\n }\n };\n } else {\n if (currentItem.data) {\n cue = new Cue(currentItem.start - timeOffset, currentItem.end - timeOffset, currentItem.data);\n if (currentItem.styles) {\n if (currentItem.styles.align !== undefined && 'align' in cue) {\n cue.align = currentItem.styles.align;\n }\n if (currentItem.styles.line !== undefined && 'line' in cue) {\n cue.line = currentItem.styles.line;\n }\n if (currentItem.styles.position !== undefined && 'position' in cue) {\n cue.position = currentItem.styles.position;\n }\n if (currentItem.styles.size !== undefined && 'size' in cue) {\n cue.size = currentItem.styles.size;\n }\n }\n cue.onenter = function () {\n if (track.mode === Constants.TEXT_SHOWING) {\n eventBus.trigger(Events.CAPTION_RENDERED, { currentTrackIdx });\n }\n };\n }\n }\n try {\n if (cue) {\n track.addCue(cue);\n } else {\n logger.error('impossible to display subtitles.');\n }\n } catch (e) {\n // Edge crash, delete everything and start adding again\n // @see https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/11979877/\n deleteTrackCues(track);\n track.addCue(cue);\n throw e;\n }\n }\n }\n\n function getTrackByIdx(idx) {\n return idx >= 0 && textTrackQueue[idx] ?\n videoModel.getTextTrack(textTrackQueue[idx].kind, textTrackQueue[idx].id, textTrackQueue[idx].lang, textTrackQueue[idx].isTTML, textTrackQueue[idx].isEmbedded) : null;\n }\n\n function getCurrentTrackIdx() {\n return currentTrackIdx;\n }\n\n function getTrackIdxForId(trackId) {\n let idx = -1;\n for (let i = 0; i < textTrackQueue.length; i++) {\n if (textTrackQueue[i].id === trackId) {\n idx = i;\n break;\n }\n }\n\n return idx;\n }\n\n function setCurrentTrackIdx(idx) {\n if (idx === currentTrackIdx) {\n return;\n }\n currentTrackIdx = idx;\n const track = getTrackByIdx(currentTrackIdx);\n setCueStyleOnTrack.call(this, track);\n\n if (videoSizeCheckInterval) {\n clearInterval(videoSizeCheckInterval);\n videoSizeCheckInterval = null;\n }\n\n if (track && track.renderingType === 'html') {\n checkVideoSize.call(this, track, true);\n if (window.ResizeObserver) {\n resizeObserver = new window.ResizeObserver(() => {\n checkVideoSize.call(this, track, true);\n });\n resizeObserver.observe(videoModel.getElement());\n } else {\n videoSizeCheckInterval = setInterval(checkVideoSize.bind(this, track), 500);\n }\n }\n }\n\n function setCueStyleOnTrack(track) {\n clearCaptionContainer.call(this);\n if (track) {\n if (track.renderingType === 'html') {\n setNativeCueStyle.call(this);\n } else {\n removeNativeCueStyle.call(this);\n }\n } else {\n removeNativeCueStyle.call(this);\n }\n }\n\n function cueInRange(cue, start, end) {\n return (isNaN(start) || cue.startTime >= start) && (isNaN(end) || cue.endTime <= end);\n }\n\n function deleteTrackCues(track, start, end) {\n if (track.cues) {\n const cues = track.cues;\n const lastIdx = cues.length - 1;\n\n for (let r = lastIdx; r >= 0 ; r--) {\n if (cueInRange(cues[r], start, end)) {\n track.removeCue(cues[r]);\n }\n }\n }\n }\n\n function deleteCuesFromTrackIdx(trackIdx, start, end) {\n const track = getTrackByIdx(trackIdx);\n if (track) {\n deleteTrackCues(track, start, end);\n }\n }\n\n function deleteAllTextTracks() {\n const ln = trackElementArr ? trackElementArr.length : 0;\n for (let i = 0; i < ln; i++) {\n const track = getTrackByIdx(i);\n if (track) {\n deleteTrackCues.call(this, track);\n track.mode = 'disabled';\n }\n }\n trackElementArr = [];\n textTrackQueue = [];\n if (videoSizeCheckInterval) {\n clearInterval(videoSizeCheckInterval);\n videoSizeCheckInterval = null;\n }\n if (resizeObserver && videoModel) {\n resizeObserver.unobserve(videoModel.getElement());\n resizeObserver = null;\n }\n currentTrackIdx = -1;\n clearCaptionContainer.call(this);\n }\n\n function deleteTextTrack(idx) {\n videoModel.removeChild(trackElementArr[idx]);\n trackElementArr.splice(idx, 1);\n }\n\n /* Set native cue style to transparent background to avoid it being displayed. */\n function setNativeCueStyle() {\n let styleElement = document.getElementById('native-cue-style');\n if (styleElement) {\n return; //Already set\n }\n\n styleElement = document.createElement('style');\n styleElement.id = 'native-cue-style';\n document.head.appendChild(styleElement);\n const stylesheet = styleElement.sheet;\n const video = videoModel.getElement();\n try {\n if (video) {\n if (video.id) {\n stylesheet.insertRule('#' + video.id + '::cue {background: transparent}', 0);\n } else if (video.classList.length !== 0) {\n stylesheet.insertRule('.' + video.className + '::cue {background: transparent}', 0);\n } else {\n stylesheet.insertRule('video::cue {background: transparent}', 0);\n }\n }\n } catch (e) {\n logger.info('' + e.message);\n }\n }\n\n /* Remove the extra cue style with transparent background for native cues. */\n function removeNativeCueStyle() {\n const styleElement = document.getElementById('native-cue-style');\n if (styleElement) {\n document.head.removeChild(styleElement);\n }\n }\n\n function clearCaptionContainer() {\n if (captionContainer) {\n while (captionContainer.firstChild) {\n captionContainer.removeChild(captionContainer.firstChild);\n }\n }\n }\n\n function setConfig(config) {\n if (!config) {\n return;\n }\n if (config.videoModel) {\n videoModel = config.videoModel;\n }\n }\n\n function setModeForTrackIdx(idx, mode) {\n const track = getTrackByIdx(idx);\n if (track && track.mode !== mode) {\n track.mode = mode;\n }\n }\n\n function getCurrentTrackInfo() {\n return textTrackQueue[currentTrackIdx];\n }\n\n instance = {\n initialize: initialize,\n setDisplayCConTop: setDisplayCConTop,\n addTextTrack: addTextTrack,\n addCaptions: addCaptions,\n getCurrentTrackIdx: getCurrentTrackIdx,\n setCurrentTrackIdx: setCurrentTrackIdx,\n getTrackIdxForId: getTrackIdxForId,\n getCurrentTrackInfo: getCurrentTrackInfo,\n setModeForTrackIdx: setModeForTrackIdx,\n deleteCuesFromTrackIdx: deleteCuesFromTrackIdx,\n deleteAllTextTracks: deleteAllTextTracks,\n deleteTextTrack: deleteTextTrack,\n setConfig: setConfig\n };\n\n setup();\n\n return instance;\n}\n\nTextTracks.__dashjs_factory_name = 'TextTracks';\nexport default FactoryMaker.getSingletonFactory(TextTracks);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Constants from '../constants/Constants';\nimport Thumbnail from '../vo/Thumbnail';\nimport ThumbnailTracks from './ThumbnailTracks';\nimport BitrateInfo from '../vo/BitrateInfo';\nimport { replaceTokenForTemplate, unescapeDollarsInTemplate } from '../../dash/utils/SegmentsUtils';\n\nfunction ThumbnailController(config) {\n\n const context = this.context;\n const streamInfo = config.streamInfo;\n\n let instance,\n thumbnailTracks;\n\n function setup() {\n reset();\n thumbnailTracks = ThumbnailTracks(context).create({\n streamInfo: streamInfo,\n adapter: config.adapter,\n baseURLController: config.baseURLController,\n timelineConverter: config.timelineConverter,\n debug: config.debug,\n eventBus: config.eventBus,\n events: config.events,\n dashConstants: config.dashConstants\n });\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function provideThumbnail(time, callback) {\n\n if (typeof callback !== 'function') {\n return;\n }\n const track = thumbnailTracks.getCurrentTrack();\n let offset,\n request;\n if (!track || track.segmentDuration <= 0 || time === undefined || time === null) {\n callback(null);\n return;\n }\n\n // Calculate index of the sprite given a time\n if (isNaN(track.segmentDuration)) {\n request = thumbnailTracks.getThumbnailRequestForTime(time);\n if (request) {\n track.segmentDuration = request.duration;\n }\n }\n\n offset = time % track.segmentDuration;\n\n const thumbIndex = Math.floor((offset * track.tilesHor * track.tilesVert) / track.segmentDuration);\n // Create and return the thumbnail\n const thumbnail = new Thumbnail();\n\n thumbnail.width = Math.floor(track.widthPerTile);\n thumbnail.height = Math.floor(track.heightPerTile);\n thumbnail.x = Math.floor(thumbIndex % track.tilesHor) * track.widthPerTile;\n thumbnail.y = Math.floor(thumbIndex / track.tilesHor) * track.heightPerTile;\n\n if ('readThumbnail' in track) {\n return track.readThumbnail(time, (url) => {\n thumbnail.url = url;\n callback(thumbnail);\n });\n } else {\n if (!request) {\n const seq = Math.floor(time / track.segmentDuration);\n thumbnail.url = buildUrlFromTemplate(track, seq);\n } else {\n thumbnail.url = request.url;\n track.segmentDuration = NaN;\n }\n callback(thumbnail);\n }\n }\n\n function buildUrlFromTemplate(track, seq) {\n const seqIdx = seq + track.startNumber;\n let url = replaceTokenForTemplate(track.templateUrl, 'Number', seqIdx);\n url = replaceTokenForTemplate(url, 'Time', (seqIdx - 1) * track.segmentDuration);\n url = replaceTokenForTemplate(url, 'Bandwidth', track.bandwidth);\n return unescapeDollarsInTemplate(url);\n }\n\n function setTrackByIndex(index) {\n thumbnailTracks.setTrackByIndex(index);\n }\n\n function getCurrentTrackIndex() {\n return thumbnailTracks.getCurrentTrackIndex();\n }\n\n function getBitrateList() {\n const tracks = thumbnailTracks.getTracks();\n let i = 0;\n\n return tracks.map((t) => {\n const bitrateInfo = new BitrateInfo();\n bitrateInfo.mediaType = Constants.IMAGE;\n bitrateInfo.qualityIndex = i++;\n bitrateInfo.bitrate = t.bitrate;\n bitrateInfo.width = t.width;\n bitrateInfo.height = t.height;\n return bitrateInfo;\n });\n }\n\n function reset() {\n if (thumbnailTracks) {\n thumbnailTracks.reset();\n }\n }\n\n instance = {\n getStreamId: getStreamId,\n provide: provideThumbnail,\n setTrackByIndex: setTrackByIndex,\n getCurrentTrackIndex: getCurrentTrackIndex,\n getBitrateList: getBitrateList,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nThumbnailController.__dashjs_factory_name = 'ThumbnailController';\nexport default FactoryMaker.getClassFactory(ThumbnailController);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Constants from '../constants/Constants';\nimport Thumbnail from '../vo/Thumbnail';\nimport ThumbnailTracks from './ThumbnailTracks';\nimport BitrateInfo from '../vo/BitrateInfo';\nimport { replaceTokenForTemplate, unescapeDollarsInTemplate } from '../../dash/utils/SegmentsUtils';\n\nfunction ThumbnailController(config) {\n\n const context = this.context;\n const streamInfo = config.streamInfo;\n\n let instance,\n thumbnailTracks;\n\n function setup() {\n reset();\n thumbnailTracks = ThumbnailTracks(context).create({\n streamInfo: streamInfo,\n adapter: config.adapter,\n baseURLController: config.baseURLController,\n timelineConverter: config.timelineConverter,\n debug: config.debug,\n eventBus: config.eventBus,\n events: config.events,\n dashConstants: config.dashConstants\n });\n }\n\n function getStreamId() {\n return streamInfo.id;\n }\n\n function provideThumbnail(time, callback) {\n\n if (typeof callback !== 'function') {\n return;\n }\n const track = thumbnailTracks.getCurrentTrack();\n let offset,\n request;\n if (!track || track.segmentDuration <= 0 || time === undefined || time === null) {\n callback(null);\n return;\n }\n\n // Calculate index of the sprite given a time\n if (isNaN(track.segmentDuration)) {\n request = thumbnailTracks.getThumbnailRequestForTime(time);\n if (request) {\n track.segmentDuration = request.duration;\n }\n }\n\n offset = time % track.segmentDuration;\n\n const thumbIndex = Math.floor((offset * track.tilesHor * track.tilesVert) / track.segmentDuration);\n // Create and return the thumbnail\n const thumbnail = new Thumbnail();\n\n thumbnail.width = Math.floor(track.widthPerTile);\n thumbnail.height = Math.floor(track.heightPerTile);\n thumbnail.x = Math.floor(thumbIndex % track.tilesHor) * track.widthPerTile;\n thumbnail.y = Math.floor(thumbIndex / track.tilesHor) * track.heightPerTile;\n\n if ('readThumbnail' in track) {\n return track.readThumbnail(time, (url) => {\n thumbnail.url = url;\n callback(thumbnail);\n });\n } else {\n if (!request) {\n const seq = Math.floor(time / track.segmentDuration);\n thumbnail.url = buildUrlFromTemplate(track, seq);\n } else {\n thumbnail.url = request.url;\n track.segmentDuration = NaN;\n }\n callback(thumbnail);\n }\n }\n\n function buildUrlFromTemplate(track, seq) {\n const seqIdx = seq + track.startNumber;\n let url = replaceTokenForTemplate(track.templateUrl, 'Number', seqIdx);\n url = replaceTokenForTemplate(url, 'Time', (seqIdx - 1) * track.segmentDuration * track.timescale);\n url = replaceTokenForTemplate(url, 'Bandwidth', track.bandwidth);\n return unescapeDollarsInTemplate(url);\n }\n\n function setTrackByIndex(index) {\n thumbnailTracks.setTrackByIndex(index);\n }\n\n function getCurrentTrackIndex() {\n return thumbnailTracks.getCurrentTrackIndex();\n }\n\n function getBitrateList() {\n const tracks = thumbnailTracks.getTracks();\n let i = 0;\n\n return tracks.map((t) => {\n const bitrateInfo = new BitrateInfo();\n bitrateInfo.mediaType = Constants.IMAGE;\n bitrateInfo.qualityIndex = i++;\n bitrateInfo.bitrate = t.bitrate;\n bitrateInfo.width = t.width;\n bitrateInfo.height = t.height;\n return bitrateInfo;\n });\n }\n\n function reset() {\n if (thumbnailTracks) {\n thumbnailTracks.reset();\n }\n }\n\n instance = {\n getStreamId: getStreamId,\n provide: provideThumbnail,\n setTrackByIndex: setTrackByIndex,\n getCurrentTrackIndex: getCurrentTrackIndex,\n getBitrateList: getBitrateList,\n reset: reset\n };\n\n setup();\n\n return instance;\n}\n\nThumbnailController.__dashjs_factory_name = 'ThumbnailController';\nexport default FactoryMaker.getClassFactory(ThumbnailController);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\nimport DashConstants from '../../dash/constants/DashConstants';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport ThumbnailTrackInfo from '../vo/ThumbnailTrackInfo';\nimport URLUtils from '../../streaming/utils/URLUtils';\nimport { replaceIDForTemplate, getTimeBasedSegment } from '../../dash/utils/SegmentsUtils';\nimport Events from '../../core/events/Events';\nimport BoxParser from '../../streaming/utils/BoxParser';\nimport XHRLoader from '../../streaming/net/XHRLoader';\nimport DashHandler from '../../dash/DashHandler';\n\nexport const THUMBNAILS_SCHEME_ID_URIS = ['http://dashif.org/thumbnail_tile',\n 'http://dashif.org/guidelines/thumbnail_tile'];\n\nfunction ThumbnailTracks(config) {\n const context = this.context;\n const adapter = config.adapter;\n const baseURLController = config.baseURLController;\n const streamInfo = config.streamInfo;\n const timelineConverter = config.timelineConverter;\n const debug = config.debug;\n const eventBus = config.eventBus;\n const events = config.events;\n const dashConstants = config.dashConstants;\n\n const urlUtils = URLUtils(context).getInstance();\n\n let instance,\n tracks,\n indexHandler,\n currentTrackIndex,\n mediaInfo,\n loader,\n boxParser;\n\n function initialize() {\n reset();\n loader = XHRLoader(context).create({});\n boxParser = BoxParser(context).getInstance();\n\n indexHandler = DashHandler(context).create({\n streamInfo: streamInfo,\n timelineConverter: timelineConverter,\n baseURLController: baseURLController,\n debug: debug,\n eventBus: eventBus,\n events: events,\n dashConstants: dashConstants,\n urlUtils: urlUtils\n });\n\n // initialize controllers\n indexHandler.initialize(adapter ? adapter.getIsDynamic() : false);\n\n // parse representation and create tracks\n addTracks();\n }\n\n function normalizeSegments(fragments, representation) {\n const segments = [];\n let count = 0;\n\n let i,\n len,\n s,\n seg;\n\n for (i = 0, len = fragments.length; i < len; i++) {\n s = fragments[i];\n\n seg = getTimeBasedSegment(\n timelineConverter,\n adapter.getIsDynamic(),\n representation,\n s.startTime,\n s.duration,\n s.timescale,\n s.media,\n s.mediaRange,\n count);\n\n if (seg) {\n segments.push(seg);\n seg = null;\n count++;\n }\n }\n return segments;\n }\n\n function addTracks() {\n if (!streamInfo || !adapter) {\n return;\n }\n\n // Extract thumbnail tracks\n mediaInfo = adapter.getMediaInfoForType(streamInfo, Constants.IMAGE);\n if (!mediaInfo) {\n return;\n }\n\n const voReps = adapter.getVoRepresentations(mediaInfo);\n\n if (voReps && voReps.length > 0) {\n voReps.forEach((rep) => {\n if ((rep.segmentInfoType === DashConstants.SEGMENT_TEMPLATE && rep.segmentDuration > 0 && rep.media) ||\n rep.segmentInfoType === DashConstants.SEGMENT_TIMELINE) {\n createTrack(rep);\n }\n if (rep.segmentInfoType === DashConstants.SEGMENT_BASE) {\n createTrack(rep, true);\n }\n });\n }\n\n if (tracks.length > 0) {\n // Sort bitrates and select the lowest bitrate rendition\n tracks.sort((a, b) => a.bitrate - b.bitrate);\n currentTrackIndex = tracks.length - 1;\n }\n }\n\n function createTrack(representation, useSegmentBase) {\n const track = new ThumbnailTrackInfo();\n track.id = representation.id;\n track.bitrate = representation.bandwidth;\n track.width = representation.width;\n track.height = representation.height;\n track.tilesHor = 1;\n track.tilesVert = 1;\n\n if (representation.essentialProperties) {\n representation.essentialProperties.forEach((p) => {\n if (THUMBNAILS_SCHEME_ID_URIS.indexOf(p.schemeIdUri) >= 0 && p.value) {\n const vars = p.value.split('x');\n if (vars.length === 2 && !isNaN(vars[0]) && !isNaN(vars[1])) {\n track.tilesHor = parseInt(vars[0], 10);\n track.tilesVert = parseInt(vars[1], 10);\n }\n }\n });\n }\n\n if (useSegmentBase) {\n eventBus.trigger(Events.SEGMENTBASE_SEGMENTSLIST_REQUEST_NEEDED, {\n streamId: streamInfo.id,\n mediaType: Constants.IMAGE,\n mimeType: mediaInfo.mimeType,\n representation: representation,\n callback: function (streamId, mediaType, segments, representation) {\n let cache = [];\n segments = normalizeSegments(segments, representation);\n track.segmentDuration = segments[0].duration; //assume all segments have the same duration\n track.readThumbnail = function (time, callback) {\n\n let cached = null;\n cache.some(el => {\n if (el.start <= time && el.end > time) {\n cached = el.url;\n return true;\n }\n });\n if (cached) {\n callback(cached);\n } else {\n segments.some((ss) => {\n if (ss.mediaStartTime <= time && ss.mediaStartTime + ss.duration > time) {\n const baseURL = baseURLController.resolve(representation.path);\n loader.load({\n method: 'get',\n url: baseURL.url,\n request: {\n range: ss.mediaRange,\n responseType: 'arraybuffer'\n },\n onload: function (e) {\n let info = boxParser.getSamplesInfo(e.target.response);\n let blob = new Blob( [ e.target.response.slice(info.sampleList[0].offset, info.sampleList[0].offset + info.sampleList[0].size) ], { type: 'image/jpeg' } );\n let imageUrl = window.URL.createObjectURL( blob );\n cache.push({\n start: ss.mediaStartTime,\n end: ss.mediaStartTime + ss.duration,\n url: imageUrl\n });\n if (callback)\n callback(imageUrl);\n }\n });\n return true;\n }\n });\n }\n };\n }\n });\n } else {\n track.startNumber = representation.startNumber;\n track.segmentDuration = representation.segmentDuration;\n track.timescale = representation.timescale;\n track.templateUrl = buildTemplateUrl(representation);\n }\n\n if (track.tilesHor > 0 && track.tilesVert > 0) {\n // Precalculate width and heigth per tile for perf reasons\n track.widthPerTile = track.width / track.tilesHor;\n track.heightPerTile = track.height / track.tilesVert;\n tracks.push(track);\n }\n }\n\n function buildTemplateUrl(representation) {\n const templateUrl = urlUtils.isRelative(representation.media) ?\n urlUtils.resolve(representation.media, baseURLController.resolve(representation.path).url) : representation.media;\n\n if (!templateUrl) {\n return '';\n }\n\n return replaceIDForTemplate(templateUrl, representation.id);\n }\n\n function getTracks() {\n return tracks;\n }\n\n function getCurrentTrackIndex() {\n return currentTrackIndex;\n }\n\n function getCurrentTrack() {\n if (currentTrackIndex < 0) {\n return null;\n }\n return tracks[currentTrackIndex];\n }\n\n function setTrackByIndex(index) {\n if (!tracks || tracks.length === 0) {\n return;\n }\n // select highest bitrate in case selected index is higher than bitrate list length\n if (index >= tracks.length) {\n index = tracks.length - 1;\n }\n currentTrackIndex = index;\n }\n\n function getThumbnailRequestForTime(time) {\n let currentVoRep;\n const voReps = adapter.getVoRepresentations(mediaInfo);\n for (let i = 0; i < voReps.length; i++) {\n if (tracks[currentTrackIndex].id === voReps[i].id) {\n currentVoRep = voReps[i];\n break;\n }\n }\n\n return indexHandler.getSegmentRequestForTime(mediaInfo, currentVoRep, time);\n }\n\n function reset() {\n tracks = [];\n currentTrackIndex = -1;\n mediaInfo = null;\n }\n\n instance = {\n initialize: initialize,\n getTracks: getTracks,\n reset: reset,\n setTrackByIndex: setTrackByIndex,\n getCurrentTrack: getCurrentTrack,\n getCurrentTrackIndex: getCurrentTrackIndex,\n getThumbnailRequestForTime: getThumbnailRequestForTime\n };\n\n initialize();\n\n return instance;\n}\n\nThumbnailTracks.__dashjs_factory_name = 'ThumbnailTracks';\nexport default FactoryMaker.getClassFactory(ThumbnailTracks);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport Errors from '../../core/errors/Errors';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport BlacklistController from '../controllers/BlacklistController';\nimport DVBSelector from './baseUrlResolution/DVBSelector';\nimport BasicSelector from './baseUrlResolution/BasicSelector';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport DashJSError from '../vo/DashJSError';\nimport { checkParameterType } from '../utils/SupervisorTools';\n\nfunction BaseURLSelector() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n let instance,\n serviceLocationBlacklistController,\n basicSelector,\n dvbSelector,\n selector;\n\n function setup() {\n serviceLocationBlacklistController = BlacklistController(context).create({\n updateEventName: Events.SERVICE_LOCATION_BLACKLIST_CHANGED,\n addBlacklistEventName: Events.SERVICE_LOCATION_BLACKLIST_ADD\n });\n\n basicSelector = BasicSelector(context).create({\n blacklistController: serviceLocationBlacklistController\n });\n\n dvbSelector = DVBSelector(context).create({\n blacklistController: serviceLocationBlacklistController\n });\n\n selector = basicSelector;\n }\n\n function setConfig(config) {\n if (config.selector) {\n selector = config.selector;\n }\n }\n\n function chooseSelector(isDVB) {\n checkParameterType(isDVB, 'boolean');\n selector = isDVB ? dvbSelector : basicSelector;\n }\n\n function select(data) {\n if (!data) {\n return;\n }\n const baseUrls = data.baseUrls;\n const selectedIdx = data.selectedIdx;\n\n // Once a random selection has been carried out amongst a group of BaseURLs with the same\n // @priority attribute value, then that choice should be re-used if the selection needs to be made again\n // unless the blacklist has been modified or the available BaseURLs have changed.\n if (!isNaN(selectedIdx)) {\n return baseUrls[selectedIdx];\n }\n\n let selectedBaseUrl = selector.select(baseUrls);\n\n if (!selectedBaseUrl) {\n eventBus.trigger(Events.URL_RESOLUTION_FAILED, {\n error: new DashJSError(\n Errors.URL_RESOLUTION_FAILED_GENERIC_ERROR_CODE,\n Errors.URL_RESOLUTION_FAILED_GENERIC_ERROR_MESSAGE\n )\n });\n if (selector === basicSelector) {\n reset();\n }\n return;\n }\n\n data.selectedIdx = baseUrls.indexOf(selectedBaseUrl);\n\n return selectedBaseUrl;\n }\n\n function reset() {\n serviceLocationBlacklistController.reset();\n }\n\n instance = {\n chooseSelector: chooseSelector,\n select: select,\n reset: reset,\n setConfig: setConfig\n };\n\n setup();\n\n return instance;\n}\n\nBaseURLSelector.__dashjs_factory_name = 'BaseURLSelector';\nexport default FactoryMaker.getClassFactory(BaseURLSelector);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport Debug from '../../core/Debug';\nimport IsoFile from './IsoFile';\nimport FactoryMaker from '../../core/FactoryMaker';\nimport ISOBoxer from 'codem-isoboxer';\n\nimport IsoBoxSearchInfo from '../vo/IsoBoxSearchInfo';\n\nfunction BoxParser(/*config*/) {\n\n let logger,\n instance;\n let context = this.context;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n /**\n * @param {ArrayBuffer} data\n * @returns {IsoFile|null}\n * @memberof BoxParser#\n */\n function parse(data) {\n if (!data) return null;\n\n if (data.fileStart === undefined) {\n data.fileStart = 0;\n }\n\n let parsedFile = ISOBoxer.parseBuffer(data);\n let dashIsoFile = IsoFile(context).create();\n\n dashIsoFile.setData(parsedFile);\n\n return dashIsoFile;\n }\n\n /**\n * From the list of type boxes to look for, returns the latest one that is fully completed (header + payload). This\n * method only looks into the list of top boxes and doesn't analyze nested boxes.\n * @param {string[]} types\n * @param {ArrayBuffer|uint8Array} buffer\n * @param {number} offset\n * @returns {IsoBoxSearchInfo}\n * @memberof BoxParser#\n */\n function findLastTopIsoBoxCompleted(types, buffer, offset) {\n if (offset === undefined) {\n offset = 0;\n }\n\n // 8 = size (uint32) + type (4 characters)\n if (!buffer || offset + 8 >= buffer.byteLength) {\n return new IsoBoxSearchInfo(0, false);\n }\n\n const data = (buffer instanceof ArrayBuffer) ? new Uint8Array(buffer) : buffer;\n let boxInfo;\n let lastCompletedOffset = 0;\n while (offset < data.byteLength) {\n const boxSize = parseUint32(data, offset);\n const boxType = parseIsoBoxType(data, offset + 4);\n\n if (boxSize === 0) {\n break;\n }\n\n if (offset + boxSize <= data.byteLength) {\n if (types.indexOf(boxType) >= 0) {\n boxInfo = new IsoBoxSearchInfo(offset, true, boxSize);\n } else {\n lastCompletedOffset = offset + boxSize;\n }\n }\n\n offset += boxSize;\n }\n\n if (!boxInfo) {\n return new IsoBoxSearchInfo(lastCompletedOffset, false);\n }\n\n return boxInfo;\n }\n\n function getSamplesInfo(ab) {\n if (!ab || ab.byteLength === 0) {\n return {sampleList: [], lastSequenceNumber: NaN, totalDuration: NaN, numSequences: NaN};\n }\n let isoFile = parse(ab);\n // zero or more moofs\n let moofBoxes = isoFile.getBoxes('moof');\n // exactly one mfhd per moof\n let mfhdBoxes = isoFile.getBoxes('mfhd');\n\n let sampleDuration,\n sampleCompositionTimeOffset,\n sampleCount,\n sampleSize,\n sampleDts,\n sampleList,\n sample,\n i, j, k, l, m, n,\n dataOffset,\n lastSequenceNumber,\n numSequences,\n totalDuration;\n\n numSequences = isoFile.getBoxes('moof').length;\n lastSequenceNumber = mfhdBoxes[mfhdBoxes.length - 1].sequence_number;\n sampleCount = 0;\n\n sampleList = [];\n let subsIndex = -1;\n let nextSubsSample = -1;\n for (l = 0; l < moofBoxes.length; l++) {\n let moofBox = moofBoxes[l];\n // zero or more trafs per moof\n let trafBoxes = moofBox.getChildBoxes('traf');\n for (j = 0; j < trafBoxes.length; j++) {\n let trafBox = trafBoxes[j];\n // exactly one tfhd per traf\n let tfhdBox = trafBox.getChildBox('tfhd');\n // zero or one tfdt per traf\n let tfdtBox = trafBox.getChildBox('tfdt');\n sampleDts = tfdtBox.baseMediaDecodeTime;\n // zero or more truns per traf\n let trunBoxes = trafBox.getChildBoxes('trun');\n // zero or more subs per traf\n let subsBoxes = trafBox.getChildBoxes('subs');\n for (k = 0; k < trunBoxes.length; k++) {\n let trunBox = trunBoxes[k];\n sampleCount = trunBox.sample_count;\n dataOffset = (tfhdBox.base_data_offset || 0) + (trunBox.data_offset || 0);\n\n for (i = 0; i < sampleCount; i++) {\n sample = trunBox.samples[i];\n sampleDuration = (sample.sample_duration !== undefined) ? sample.sample_duration : tfhdBox.default_sample_duration;\n sampleSize = (sample.sample_size !== undefined) ? sample.sample_size : tfhdBox.default_sample_size;\n sampleCompositionTimeOffset = (sample.sample_composition_time_offset !== undefined) ? sample.sample_composition_time_offset : 0;\n let sampleData = {\n 'dts': sampleDts,\n 'cts': (sampleDts + sampleCompositionTimeOffset),\n 'duration': sampleDuration,\n 'offset': moofBox.offset + dataOffset,\n 'size': sampleSize,\n 'subSizes': [sampleSize]\n };\n if (subsBoxes) {\n for (m = 0; m < subsBoxes.length; m++) {\n let subsBox = subsBoxes[m];\n if (subsIndex < (subsBox.entry_count - 1) && i > nextSubsSample) {\n subsIndex++;\n nextSubsSample += subsBox.entries[subsIndex].sample_delta;\n }\n if (i == nextSubsSample) {\n sampleData.subSizes = [];\n let entry = subsBox.entries[subsIndex];\n for (n = 0; n < entry.subsample_count; n++) {\n sampleData.subSizes.push(entry.subsamples[n].subsample_size);\n }\n }\n }\n }\n sampleList.push(sampleData);\n dataOffset += sampleSize;\n sampleDts += sampleDuration;\n }\n }\n totalDuration = sampleDts - tfdtBox.baseMediaDecodeTime;\n }\n }\n return {sampleList: sampleList, lastSequenceNumber: lastSequenceNumber, totalDuration: totalDuration, numSequences: numSequences};\n }\n\n function getMediaTimescaleFromMoov(ab) {\n let isoFile = parse(ab);\n let mdhdBox = isoFile ? isoFile.getBox('mdhd') : undefined;\n\n return mdhdBox ? mdhdBox.timescale : NaN;\n }\n\n function parseUint32(data, offset) {\n return data[offset + 3] >>> 0 |\n (data[offset + 2] << 8) >>> 0 |\n (data[offset + 1] << 16) >>> 0 |\n (data[offset] << 24) >>> 0;\n }\n\n function parseIsoBoxType(data, offset) {\n return String.fromCharCode(data[offset++]) +\n String.fromCharCode(data[offset++]) +\n String.fromCharCode(data[offset++]) +\n String.fromCharCode(data[offset]);\n }\n\n function findInitRange(data) {\n let initRange = null;\n let start,\n end;\n\n const isoFile = parse(data);\n\n if (!isoFile) {\n return initRange;\n }\n\n const ftyp = isoFile.getBox('ftyp');\n const moov = isoFile.getBox('moov');\n\n logger.debug('Searching for initialization.');\n\n if (moov && moov.isComplete) {\n start = ftyp ? ftyp.offset : moov.offset;\n end = moov.offset + moov.size - 1;\n initRange = start + '-' + end;\n\n logger.debug('Found the initialization. Range: ' + initRange);\n }\n\n return initRange;\n }\n\n /**\n * Real-time parsing (whenever data is loaded in the buffer payload) of the payload to capture the moof of a chunk\n * @param {array} types\n * @param {ArrayBuffer} buffer\n * @param {number} offset\n * @return {IsoBoxSearchInfo}\n */\n function parsePayload(types, buffer, offset) {\n if (offset === undefined) {\n offset = 0;\n }\n\n if (!buffer || offset + 8 >= buffer.byteLength) {\n return new IsoBoxSearchInfo(0, false);\n }\n\n const data = (buffer instanceof ArrayBuffer) ? new Uint8Array(buffer) : buffer;\n let boxInfo;\n let lastCompletedOffset = 0;\n while (offset < data.byteLength) {\n const boxSize = parseUint32(data, offset);\n const boxType = parseIsoBoxType(data, offset + 4);\n\n if (boxSize === 0) {\n break;\n }\n\n if (offset + boxSize <= data.byteLength) {\n if (types.indexOf(boxType) >= 0) {\n boxInfo = new IsoBoxSearchInfo(offset, true, boxSize, boxType);\n } else {\n lastCompletedOffset = offset + boxSize;\n }\n }\n\n offset += boxSize;\n }\n\n if (!boxInfo) {\n return new IsoBoxSearchInfo(lastCompletedOffset, false);\n }\n\n return boxInfo;\n }\n\n instance = {\n parse: parse,\n findLastTopIsoBoxCompleted: findLastTopIsoBoxCompleted,\n getMediaTimescaleFromMoov: getMediaTimescaleFromMoov,\n getSamplesInfo: getSamplesInfo,\n findInitRange: findInitRange,\n parsePayload: parsePayload\n };\n\n setup();\n\n return instance;\n}\nBoxParser.__dashjs_factory_name = 'BoxParser';\nexport default FactoryMaker.getSingletonFactory(BoxParser);\n",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\n\nfunction Capabilities() {\n\n let instance,\n encryptedMediaSupported;\n\n function setup() {\n encryptedMediaSupported = false;\n }\n\n function supportsMediaSource() {\n let hasWebKit = ('WebKitMediaSource' in window);\n let hasMediaSource = ('MediaSource' in window);\n\n return (hasWebKit || hasMediaSource);\n }\n\n /**\n * Returns whether Encrypted Media Extensions are supported on this\n * user agent\n *\n * @return {boolean} true if EME is supported, false otherwise\n */\n function supportsEncryptedMedia() {\n return encryptedMediaSupported;\n }\n\n function setEncryptedMediaSupported(value) {\n encryptedMediaSupported = value;\n }\n\n function supportsCodec(codec) {\n if ('MediaSource' in window && MediaSource.isTypeSupported(codec)) {\n return true;\n }\n\n if ('WebKitMediaSource' in window && WebKitMediaSource.isTypeSupported(codec)) {\n return true;\n }\n\n return false;\n }\n\n instance = {\n supportsMediaSource: supportsMediaSource,\n supportsEncryptedMedia: supportsEncryptedMedia,\n supportsCodec: supportsCodec,\n setEncryptedMediaSupported: setEncryptedMediaSupported\n };\n\n setup();\n\n return instance;\n}\nCapabilities.__dashjs_factory_name = 'Capabilities';\nexport default FactoryMaker.getSingletonFactory(Capabilities);",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport {THUMBNAILS_SCHEME_ID_URIS} from '../thumbnail/ThumbnailTracks';\n\nconst codecCompatibilityTable = [\n {\n 'codec': 'avc1',\n 'compatibleCodecs': ['avc3']\n },\n {\n 'codec': 'avc3',\n 'compatibleCodecs': ['avc1']\n }\n];\n\nexport function supportsMediaSource() {\n let hasWebKit = ('WebKitMediaSource' in window);\n let hasMediaSource = ('MediaSource' in window);\n\n return (hasWebKit || hasMediaSource);\n}\n\nfunction Capabilities() {\n\n let instance,\n encryptedMediaSupported;\n\n function setup() {\n encryptedMediaSupported = false;\n }\n\n /**\n * Returns whether Encrypted Media Extensions are supported on this\n * user agent\n *\n * @return {boolean} true if EME is supported, false otherwise\n */\n function supportsEncryptedMedia() {\n return encryptedMediaSupported;\n }\n\n /**\n *\n * @param {boolean} value\n */\n function setEncryptedMediaSupported(value) {\n encryptedMediaSupported = value;\n }\n\n /**\n * Check if a codec is supported by the MediaSource\n * @param {string} codec\n * @return {boolean}\n */\n function supportsCodec(codec) {\n if ('MediaSource' in window && MediaSource.isTypeSupported(codec)) {\n return true;\n }\n\n if ('WebKitMediaSource' in window && WebKitMediaSource.isTypeSupported(codec)) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Check if a specific EssentialProperty is supported\n * @param {object} ep\n * @return {boolean}\n */\n function supportsEssentialProperty(ep) {\n try {\n return THUMBNAILS_SCHEME_ID_URIS.indexOf(ep.schemeIdUri) !== -1;\n } catch (e) {\n return true;\n }\n }\n\n /**\n * Check if the root of the old codec is the same as the new one, or if it's declared as compatible in the compat table\n * @param {string} codec1\n * @param {string} codec2\n * @return {boolean}\n */\n function codecRootCompatibleWithCodec(codec1, codec2) {\n const codecRoot = codec1.split('.')[0];\n const rootCompatible = codec2.indexOf(codecRoot) === 0;\n let compatTableCodec;\n for (let i = 0; i < codecCompatibilityTable.length; i++) {\n if (codecCompatibilityTable[i].codec === codecRoot) {\n compatTableCodec = codecCompatibilityTable[i];\n break;\n }\n }\n if (compatTableCodec) {\n return rootCompatible || compatTableCodec.compatibleCodecs.some((compatibleCodec) => codec2.indexOf(compatibleCodec) === 0);\n }\n return rootCompatible;\n }\n\n instance = {\n supportsMediaSource,\n supportsEncryptedMedia,\n supportsCodec,\n setEncryptedMediaSupported,\n supportsEssentialProperty,\n codecRootCompatibleWithCodec\n };\n\n setup();\n\n return instance;\n}\n\nCapabilities.__dashjs_factory_name = 'Capabilities';\nexport default FactoryMaker.getSingletonFactory(Capabilities);\n",
+ "import FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport Constants from '../constants/Constants';\n\nfunction CapabilitiesFilter() {\n const context = this.context;\n let instance,\n adapter,\n capabilities,\n settings,\n logger;\n\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function setConfig(config) {\n if (!config) {\n return;\n }\n\n if (config.adapter) {\n adapter = config.adapter;\n }\n\n if (config.capabilities) {\n capabilities = config.capabilities;\n }\n\n if (config.settings) {\n settings = config.settings;\n }\n\n }\n\n function filterUnsupportedFeaturesOfPeriod(streamInfo) {\n _filterUnsupportedCodecs(Constants.VIDEO, streamInfo);\n _filterUnsupportedCodecs(Constants.AUDIO, streamInfo);\n\n if (settings.get().streaming.filterUnsupportedEssentialProperties) {\n _filterUnsupportedEssentialProperties(streamInfo);\n }\n }\n\n\n function _filterUnsupportedCodecs(type, streamInfo) {\n const realPeriod = adapter.getRealPeriodByIndex(streamInfo ? streamInfo.index : null);\n\n if (!realPeriod || !realPeriod.AdaptationSet_asArray || realPeriod.AdaptationSet_asArray.length === 0) {\n return;\n }\n\n realPeriod.AdaptationSet_asArray = realPeriod.AdaptationSet_asArray.filter((as) => {\n\n if (!as.Representation_asArray || as.Representation_asArray.length === 0 || !adapter.getIsTypeOf(as, type)) {\n return true;\n }\n\n as.Representation_asArray = as.Representation_asArray.filter((_, i) => {\n const codec = adapter.getCodec(as, i, true);\n if (!capabilities.supportsCodec(codec)) {\n logger.error('[Stream] codec not supported: ' + codec);\n return false;\n }\n return true;\n });\n\n return as.Representation_asArray && as.Representation_asArray.length > 0;\n });\n\n }\n\n function _filterUnsupportedEssentialProperties(streamInfo) {\n const realPeriod = adapter.getRealPeriodByIndex(streamInfo ? streamInfo.index : null);\n\n if (!realPeriod || !realPeriod.AdaptationSet_asArray || realPeriod.AdaptationSet_asArray.length === 0) {\n return;\n }\n\n realPeriod.AdaptationSet_asArray = realPeriod.AdaptationSet_asArray.filter((as) => {\n\n if (!as.Representation_asArray || as.Representation_asArray.length === 0) {\n return true;\n }\n\n as.Representation_asArray = as.Representation_asArray.filter((rep) => {\n const essentialProperties = adapter.getEssentialPropertiesForRepresentation(rep);\n\n if (essentialProperties && essentialProperties.length > 0) {\n let i = 0;\n while (i < essentialProperties.length) {\n if (!capabilities.supportsEssentialProperty(essentialProperties[i])) {\n logger.debug('[Stream] EssentialProperty not supported: ' + essentialProperties[i].schemeIdUri);\n return false;\n }\n i += 1;\n }\n }\n\n return true;\n });\n\n return as.Representation_asArray && as.Representation_asArray.length > 0;\n });\n\n }\n\n instance = {\n setConfig,\n filterUnsupportedFeaturesOfPeriod\n };\n\n setup();\n\n return instance;\n}\n\nCapabilitiesFilter.__dashjs_factory_name = 'CapabilitiesFilter';\nexport default FactoryMaker.getSingletonFactory(CapabilitiesFilter);\n",
"/**\n* The copyright in this software is being made available under the BSD License,\n* included below. This software may be subject to other third party and contributor\n* rights, including patent rights, and no such rights are granted under this license.\n*\n* Copyright (c) 2013, Dash Industry Forum.\n* All rights reserved.\n*\n* Redistribution and use in source and binary forms, with or without modification,\n* are permitted provided that the following conditions are met:\n* * Redistributions of source code must retain the above copyright notice, this\n* list of conditions and the following disclaimer.\n* * Redistributions in binary form must reproduce the above copyright notice,\n* this list of conditions and the following disclaimer in the documentation and/or\n* other materials provided with the distribution.\n* * Neither the name of Dash Industry Forum nor the names of its\n* contributors may be used to endorse or promote products derived from this software\n* without specific prior written permission.\n*\n* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n* POSSIBILITY OF SUCH DAMAGE.\n*/\nimport FactoryMaker from '../../core/FactoryMaker';\nimport { checkInteger } from '../utils/SupervisorTools';\n\nfunction CustomTimeRanges(/*config*/) {\n let customTimeRangeArray = [];\n let length = 0;\n\n function add(start, end) {\n let i = 0;\n\n for (i = 0; (i < this.customTimeRangeArray.length) && (start > this.customTimeRangeArray[i].start); i++);\n\n this.customTimeRangeArray.splice(i, 0, {start: start,end: end});\n\n for (i = 0; i < this.customTimeRangeArray.length - 1; i++) {\n if (this.mergeRanges(i,i + 1)) {\n i--;\n }\n }\n this.length = this.customTimeRangeArray.length;\n }\n\n function clear() {\n this.customTimeRangeArray = [];\n this.length = 0;\n }\n\n function remove(start, end) {\n for (let i = 0; i < this.customTimeRangeArray.length; i++) {\n if (start <= this.customTimeRangeArray[i].start && end >= this.customTimeRangeArray[i].end) {\n // |--------------Range i-------|\n //|---------------Range to remove ---------------|\n // or\n //|--------------Range i-------|\n //|--------------Range to remove ---------------|\n // or\n // |--------------Range i-------|\n //|--------------Range to remove ---------------|\n this.customTimeRangeArray.splice(i,1);\n i--;\n\n } else if (start > this.customTimeRangeArray[i].start && end < this.customTimeRangeArray[i].end) {\n //|-----------------Range i----------------|\n // |-------Range to remove -----|\n this.customTimeRangeArray.splice(i + 1, 0, {start: end,end: this.customTimeRangeArray[i].end});\n this.customTimeRangeArray[i].end = start;\n break;\n } else if ( start > this.customTimeRangeArray[i].start && start < this.customTimeRangeArray[i].end) {\n //|-----------Range i----------|\n // |---------Range to remove --------|\n // or\n //|-----------------Range i----------------|\n // |-------Range to remove -----|\n this.customTimeRangeArray[i].end = start;\n } else if ( end > this.customTimeRangeArray[i].start && end < this.customTimeRangeArray[i].end) {\n // |-----------Range i----------|\n //|---------Range to remove --------|\n // or\n //|-----------------Range i----------------|\n //|-------Range to remove -----|\n this.customTimeRangeArray[i].start = end;\n }\n }\n\n this.length = this.customTimeRangeArray.length;\n }\n\n function mergeRanges(rangeIndex1, rangeIndex2) {\n let range1 = this.customTimeRangeArray[rangeIndex1];\n let range2 = this.customTimeRangeArray[rangeIndex2];\n\n if (range1.start <= range2.start && range2.start <= range1.end && range1.end <= range2.end) {\n //|-----------Range1----------|\n // |-----------Range2----------|\n range1.end = range2.end;\n this.customTimeRangeArray.splice(rangeIndex2,1);\n return true;\n\n } else if (range2.start <= range1.start && range1.start <= range2.end && range2.end <= range1.end) {\n // |-----------Range1----------|\n //|-----------Range2----------|\n range1.start = range2.start;\n this.customTimeRangeArray.splice(rangeIndex2,1);\n return true;\n } else if (range2.start <= range1.start && range1.start <= range2.end && range1.end <= range2.end) {\n // |--------Range1-------|\n //|---------------Range2--------------|\n this.customTimeRangeArray.splice(rangeIndex1,1);\n return true;\n } else if (range1.start <= range2.start && range2.start <= range1.end && range2.end <= range1.end) {\n //|-----------------Range1--------------|\n // |-----------Range2----------|\n this.customTimeRangeArray.splice(rangeIndex2,1);\n return true;\n }\n return false;\n }\n\n function start(index) {\n checkInteger(index);\n\n if (index >= this.customTimeRangeArray.length || index < 0) {\n return NaN;\n }\n\n return this.customTimeRangeArray[index].start;\n }\n\n function end(index) {\n checkInteger(index);\n\n if (index >= this.customTimeRangeArray.length || index < 0) {\n return NaN;\n }\n\n return this.customTimeRangeArray[index].end;\n }\n\n return {\n customTimeRangeArray: customTimeRangeArray,\n length: length,\n add: add,\n clear: clear,\n remove: remove,\n mergeRanges: mergeRanges,\n start: start,\n end: end\n };\n}\nCustomTimeRanges.__dashjs_factory_name = 'CustomTimeRanges';\nexport default FactoryMaker.getClassFactory(CustomTimeRanges);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport Constants from '../constants/Constants';\n\nconst legacyKeysAndReplacements = [\n { oldKey: 'dashjs_vbitrate', newKey: 'dashjs_video_bitrate' },\n { oldKey: 'dashjs_abitrate', newKey: 'dashjs_audio_bitrate' },\n { oldKey: 'dashjs_vsettings', newKey: 'dashjs_video_settings' },\n { oldKey: 'dashjs_asettings', newKey: 'dashjs_audio_settings' }\n];\n\nconst LOCAL_STORAGE_BITRATE_KEY_TEMPLATE = 'dashjs_?_bitrate';\nconst LOCAL_STORAGE_SETTINGS_KEY_TEMPLATE = 'dashjs_?_settings';\n\nconst STORAGE_TYPE_LOCAL = 'localStorage';\nconst STORAGE_TYPE_SESSION = 'sessionStorage';\nconst LAST_BITRATE = 'lastBitrate';\nconst LAST_MEDIA_SETTINGS = 'lastMediaSettings';\n\nfunction DOMStorage(config) {\n\n config = config || {};\n const context = this.context;\n const settings = config.settings;\n\n let instance,\n logger,\n supported;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n translateLegacyKeys();\n }\n\n //type can be local, session\n function isSupported(type) {\n if (supported !== undefined) return supported;\n\n supported = false;\n\n const testKey = '1';\n const testValue = '1';\n let storage;\n\n try {\n if (typeof window !== 'undefined') {\n storage = window[type];\n }\n } catch (error) {\n logger.warn('DOMStorage access denied: ' + error.message);\n return supported;\n }\n\n if (!storage || (type !== STORAGE_TYPE_LOCAL && type !== STORAGE_TYPE_SESSION)) {\n return supported;\n }\n\n /* When Safari (OS X or iOS) is in private browsing mode, it appears as though localStorage is available, but trying to call setItem throws an exception.\n http://stackoverflow.com/questions/14555347/html5-localstorage-error-with-safari-quota-exceeded-err-dom-exception-22-an\n\n Check if the storage can be used\n */\n try {\n storage.setItem(testKey, testValue);\n storage.removeItem(testKey);\n supported = true;\n } catch (error) {\n logger.warn('DOMStorage is supported, but cannot be used: ' + error.message);\n }\n\n return supported;\n }\n\n function translateLegacyKeys() {\n if (isSupported(STORAGE_TYPE_LOCAL)) {\n legacyKeysAndReplacements.forEach(entry => {\n const value = localStorage.getItem(entry.oldKey);\n\n if (value) {\n localStorage.removeItem(entry.oldKey);\n\n try {\n localStorage.setItem(entry.newKey, value);\n } catch (e) {\n logger.error(e.message);\n }\n }\n });\n }\n }\n\n // Return current epoch time, ms, rounded to the nearest 10m to avoid fingerprinting user\n function getTimestamp() {\n const ten_minutes_ms = 60 * 1000 * 10;\n return Math.round(new Date().getTime() / ten_minutes_ms) * ten_minutes_ms;\n }\n\n function canStore(storageType, key) {\n return isSupported(storageType) && settings.get().streaming[key + 'CachingInfo'].enabled;\n }\n\n function checkConfig() {\n if (!settings) {\n throw new Error(Constants.MISSING_CONFIG_ERROR);\n }\n }\n\n function getSavedMediaSettings(type) {\n let mediaSettings = null;\n\n checkConfig();\n //Checks local storage to see if there is valid, non-expired media settings\n if (canStore(STORAGE_TYPE_LOCAL, LAST_MEDIA_SETTINGS)) {\n const key = LOCAL_STORAGE_SETTINGS_KEY_TEMPLATE.replace(/\\?/, type);\n try {\n const obj = JSON.parse(localStorage.getItem(key)) || {};\n const isExpired = (new Date().getTime() - parseInt(obj.timestamp, 10)) >= settings.get().streaming.lastMediaSettingsCachingInfo.ttl || false;\n mediaSettings = obj.settings;\n\n if (isExpired) {\n localStorage.removeItem(key);\n mediaSettings = null;\n }\n } catch (e) {\n return null;\n }\n }\n return mediaSettings;\n }\n\n function getSavedBitrateSettings(type) {\n let savedBitrate = NaN;\n\n checkConfig();\n\n //Checks local storage to see if there is valid, non-expired bit rate\n //hinting from the last play session to use as a starting bit rate.\n if (canStore(STORAGE_TYPE_LOCAL, LAST_BITRATE)) {\n const key = LOCAL_STORAGE_BITRATE_KEY_TEMPLATE.replace(/\\?/, type);\n try {\n const obj = JSON.parse(localStorage.getItem(key)) || {};\n const isExpired = (new Date().getTime() - parseInt(obj.timestamp, 10)) >= settings.get().streaming.lastBitrateCachingInfo.ttl || false;\n const bitrate = parseFloat(obj.bitrate);\n\n if (!isNaN(bitrate) && !isExpired) {\n savedBitrate = bitrate;\n logger.debug('Last saved bitrate for ' + type + ' was ' + bitrate);\n } else if (isExpired) {\n localStorage.removeItem(key);\n }\n } catch (e) {\n return null;\n }\n }\n return savedBitrate;\n }\n\n function setSavedMediaSettings(type, value) {\n if (canStore(STORAGE_TYPE_LOCAL, LAST_MEDIA_SETTINGS)) {\n const key = LOCAL_STORAGE_SETTINGS_KEY_TEMPLATE.replace(/\\?/, type);\n try {\n localStorage.setItem(key, JSON.stringify({settings: value, timestamp: getTimestamp()}));\n } catch (e) {\n logger.error(e.message);\n }\n }\n }\n\n function setSavedBitrateSettings(type, bitrate) {\n if (canStore(STORAGE_TYPE_LOCAL, LAST_BITRATE) && bitrate) {\n const key = LOCAL_STORAGE_BITRATE_KEY_TEMPLATE.replace(/\\?/, type);\n try {\n localStorage.setItem(key, JSON.stringify({bitrate: bitrate.toFixed(3), timestamp: getTimestamp()}));\n } catch (e) {\n logger.error(e.message);\n }\n }\n }\n\n instance = {\n getSavedBitrateSettings: getSavedBitrateSettings,\n setSavedBitrateSettings: setSavedBitrateSettings,\n getSavedMediaSettings: getSavedMediaSettings,\n setSavedMediaSettings: setSavedMediaSettings\n };\n\n setup();\n return instance;\n}\n\nDOMStorage.__dashjs_factory_name = 'DOMStorage';\nconst factory = FactoryMaker.getSingletonFactory(DOMStorage);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\n\n/**\n * @module DefaultURLUtils\n * @description Provides utility functions for operating on URLs.\n * Initially this is simply a method to determine the Base URL of a URL, but\n * should probably include other things provided all over the place such as\n * determining whether a URL is relative/absolute, resolving two paths etc.\n * @ignore\n */\nfunction DefaultURLUtils() {\n\n let resolveFunction;\n\n const schemeRegex = /^[a-z][a-z0-9+\\-_.]*:/i;\n const httpUrlRegex = /^https?:\\/\\//i;\n const httpsUrlRegex = /^https:\\/\\//i;\n const originRegex = /^([a-z][a-z0-9+\\-_.]*:\\/\\/[^\\/]+)\\/?/i;\n\n /**\n * Resolves a url given an optional base url\n * Uses window.URL to do the resolution.\n *\n * @param {string} url\n * @param {string} [baseUrl]\n * @return {string}\n * @memberof module:DefaultURLUtils\n * @instance\n * @private\n */\n const nativeURLResolver = (url, baseUrl) => {\n try {\n return new window.URL(url, baseUrl).toString();\n } catch (e) {\n return url;\n }\n };\n\n /**\n * Resolves a url given an optional base url\n * Does not resolve ./, ../ etc but will do enough to construct something\n * which will satisfy XHR etc when window.URL is not available ie\n * IE11/node etc.\n *\n * @param {string} url\n * @param {string} [baseUrl]\n * @return {string}\n * @memberof module:DefaultURLUtils\n * @instance\n * @private\n */\n const dumbURLResolver = (url, baseUrl) => {\n let baseUrlParseFunc = parseBaseUrl;\n\n if (!baseUrl) {\n return url;\n }\n\n if (!isRelative(url)) {\n return url;\n }\n\n if (isPathAbsolute(url)) {\n baseUrlParseFunc = parseOrigin;\n }\n\n if (isSchemeRelative(url)) {\n baseUrlParseFunc = parseScheme;\n }\n\n const base = baseUrlParseFunc(baseUrl);\n const joinChar =\n base.charAt(base.length - 1) !== '/' &&\n url.charAt(0) !== '/' ?\n '/' : '';\n\n return [base, url].join(joinChar);\n };\n\n function setup() {\n try {\n const u = new window.URL('x', 'http://y'); //jshint ignore:line\n resolveFunction = nativeURLResolver;\n } catch (e) {\n // must be IE11/Node etc\n } finally {\n resolveFunction = resolveFunction || dumbURLResolver;\n }\n }\n\n /**\n * Returns a string that contains the Base URL of a URL, if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function parseBaseUrl(url) {\n const slashIndex = url.indexOf('/');\n const lastSlashIndex = url.lastIndexOf('/');\n\n if (slashIndex !== -1) {\n // if there is only '//'\n if (lastSlashIndex === slashIndex + 1) {\n return url;\n }\n\n if (url.indexOf('?') !== -1) {\n url = url.substring(0, url.indexOf('?'));\n }\n\n return url.substring(0, lastSlashIndex + 1);\n }\n\n return '';\n }\n\n /**\n * Returns a string that contains the scheme and origin of a URL,\n * if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function parseOrigin(url) {\n const matches = url.match(originRegex);\n\n if (matches) {\n return matches[1];\n }\n\n return '';\n }\n\n /**\n * Returns a string that contains the fragment of a URL without scheme,\n * if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function removeHostname(url) {\n let urlParts = /^(?:\\w+\\:\\/\\/)?([^\\/]+)(.*)$/.exec(url); //[1] = host / [2] = path\n return urlParts[2].substring(1);\n }\n\n /**\n * Returns a string that contains the scheme of a URL, if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function parseScheme(url) {\n const matches = url.match(schemeRegex);\n\n if (matches) {\n return matches[0];\n }\n\n return '';\n }\n\n /**\n * Determines whether the url is relative.\n * @return {boolean}\n * @param {string} url\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function isRelative(url) {\n return !schemeRegex.test(url);\n }\n\n /**\n * Determines whether the url is path-absolute.\n * @return {bool}\n * @param {string} url\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function isPathAbsolute(url) {\n return isRelative(url) && url.charAt(0) === '/';\n }\n\n /**\n * Determines whether the url is scheme-relative.\n * @return {bool}\n * @param {string} url\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function isSchemeRelative(url) {\n return url.indexOf('//') === 0;\n }\n\n /**\n * Determines whether the url is an HTTP-URL as defined in ISO/IEC\n * 23009-1:2014 3.1.15. ie URL with a fixed scheme of http or https\n * @return {bool}\n * @param {string} url\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function isHTTPURL(url) {\n return httpUrlRegex.test(url);\n }\n\n /**\n * Determines whether the supplied url has https scheme\n * @return {bool}\n * @param {string} url\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function isHTTPS(url) {\n return httpsUrlRegex.test(url);\n }\n\n /**\n * Resolves a url given an optional base url\n * @return {string}\n * @param {string} url\n * @param {string} [baseUrl]\n * @memberof module:DefaultURLUtils\n * @instance\n */\n function resolve(url, baseUrl) {\n return resolveFunction(url, baseUrl);\n }\n\n setup();\n\n const instance = {\n parseBaseUrl: parseBaseUrl,\n parseOrigin: parseOrigin,\n parseScheme: parseScheme,\n isRelative: isRelative,\n isPathAbsolute: isPathAbsolute,\n isSchemeRelative: isSchemeRelative,\n isHTTPURL: isHTTPURL,\n isHTTPS: isHTTPS,\n removeHostname: removeHostname,\n resolve: resolve\n };\n\n return instance;\n}\n\nDefaultURLUtils.__dashjs_factory_name = 'DefaultURLUtils';\nexport default FactoryMaker.getSingletonFactory(DefaultURLUtils);\n",
@@ -487,7 +501,7 @@
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport deepEqual from 'fast-deep-equal';\n\n/**\n * @module ObjectUtils\n * @ignore\n * @description Provides utility functions for objects\n */\nfunction ObjectUtils() {\n\n let instance;\n\n /**\n * Returns true if objects are equal\n * @return {boolean}\n * @param {object} obj1\n * @param {object} obj2\n * @memberof module:ObjectUtils\n * @instance\n */\n function areEqual(obj1, obj2) {\n return deepEqual(obj1, obj2);\n }\n\n instance = {\n areEqual: areEqual\n };\n\n return instance;\n}\n\nObjectUtils.__dashjs_factory_name = 'ObjectUtils';\nexport default FactoryMaker.getSingletonFactory(ObjectUtils);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\n\nfunction RequestModifier() {\n\n let instance;\n\n function modifyRequestURL(url) {\n return url;\n }\n\n function modifyRequestHeader(request) {\n return request;\n }\n\n instance = {\n modifyRequestURL: modifyRequestURL,\n modifyRequestHeader: modifyRequestHeader\n };\n\n return instance;\n}\n\nRequestModifier.__dashjs_factory_name = 'RequestModifier';\nexport default FactoryMaker.getSingletonFactory(RequestModifier);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport Constants from '../constants/Constants';\n\nexport function checkParameterType(parameter, type) {\n if (typeof parameter !== type) {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n}\n\nexport function checkInteger(parameter) {\n const isInt = parameter !== null && !isNaN(parameter) && (parameter % 1 === 0);\n\n if (!isInt) {\n throw Constants.BAD_ARGUMENT_ERROR + ' : argument is not an integer';\n }\n}\n\nexport function checkRange(parameter, min, max) {\n if (parameter < min || parameter > max) {\n throw Constants.BAD_ARGUMENT_ERROR + ' : argument out of range';\n }\n}\n\nexport function checkIsVideoOrAudioType(type) {\n if (typeof type !== 'string' || (type !== Constants.AUDIO && type !== Constants.VIDEO)) {\n throw Constants.BAD_ARGUMENT_ERROR;\n }\n}",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport { fromXML, generateISD } from 'imsc';\n\nfunction TTMLParser() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n /*\n * This TTML parser follows \"EBU-TT-D SUBTITLING DISTRIBUTION FORMAT - tech3380\" spec - https://tech.ebu.ch/docs/tech/tech3380.pdf.\n * */\n let instance,\n logger;\n\n let cueCounter = 0; // Used to give every cue a unique ID.\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function getCueID() {\n const id = 'cue_TTML_' + cueCounter;\n cueCounter++;\n return id;\n }\n\n /**\n * Parse the raw data and process it to return the HTML element representing the cue.\n * Return the region to be processed and controlled (hide/show) by the caption controller.\n * @param {string} data - raw data received from the TextSourceBuffer\n * @param {number} offsetTime - offset time to apply to cue time\n * @param {integer} startTimeSegment - startTime for the current segment\n * @param {integer} endTimeSegment - endTime for the current segment\n * @param {Array} images - images array referenced by subs MP4 box\n */\n function parse(data, offsetTime, startTimeSegment, endTimeSegment, images) {\n let errorMsg = '';\n const captionArray = [];\n let startTime,\n endTime,\n i;\n\n const content = {};\n\n const embeddedImages = {};\n let currentImageId = '';\n let accumulated_image_data = '';\n let metadataHandler = {\n\n onOpenTag: function (ns, name, attrs) {\n // cope with existing non-compliant content\n if (attrs[' imagetype'] && !attrs[' imageType']) {\n attrs[' imageType'] = attrs[' imagetype'];\n }\n\n if (name === 'image' &&\n (ns === 'http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt' ||\n ns === 'http://www.smpte-ra.org/schemas/2052-1/2013/smpte-tt')) {\n if (!attrs[' imageType'] || attrs[' imageType'].value !== 'PNG') {\n logger.warn('smpte-tt imageType != PNG. Discarded');\n return;\n }\n currentImageId = attrs['http://www.w3.org/XML/1998/namespace id'].value;\n }\n },\n\n onCloseTag: function () {\n if (currentImageId) {\n embeddedImages[currentImageId] = accumulated_image_data.trim();\n }\n accumulated_image_data = '';\n currentImageId = '';\n },\n\n onText: function (contents) {\n if (currentImageId) {\n accumulated_image_data = accumulated_image_data + contents;\n }\n }\n };\n\n if (!data) {\n errorMsg = 'no ttml data to parse';\n throw new Error(errorMsg);\n }\n\n content.data = data;\n\n eventBus.trigger(Events.TTML_TO_PARSE, content);\n\n const imsc1doc = fromXML(content.data, function (msg) {\n errorMsg = msg;\n }, metadataHandler);\n\n eventBus.trigger(Events.TTML_PARSED, { ttmlString: content.data, ttmlDoc: imsc1doc });\n\n const mediaTimeEvents = imsc1doc.getMediaTimeEvents();\n\n for (i = 0; i < mediaTimeEvents.length; i++) {\n let isd = generateISD(imsc1doc, mediaTimeEvents[i], function (error) {\n errorMsg = error;\n });\n\n if (isd.contents.some(topLevelContents => topLevelContents.contents.length)) {\n //be sure that mediaTimeEvents values are in the mp4 segment time ranges.\n startTime = (mediaTimeEvents[i] + offsetTime) < startTimeSegment ? startTimeSegment : (mediaTimeEvents[i] + offsetTime);\n endTime = (mediaTimeEvents[i + 1] + offsetTime) > endTimeSegment ? endTimeSegment : (mediaTimeEvents[i + 1] + offsetTime);\n\n if (startTime < endTime) {\n captionArray.push({\n start: startTime,\n end: endTime,\n type: 'html',\n cueID: getCueID(),\n isd: isd,\n images: images,\n embeddedImages: embeddedImages\n });\n }\n }\n }\n\n if (errorMsg !== '') {\n logger.error(errorMsg);\n throw new Error(errorMsg);\n }\n\n return captionArray;\n }\n\n instance = {\n parse: parse\n };\n\n setup();\n return instance;\n}\nTTMLParser.__dashjs_factory_name = 'TTMLParser';\nexport default FactoryMaker.getSingletonFactory(TTMLParser);\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\nimport EventBus from '../../core/EventBus';\nimport Events from '../../core/events/Events';\nimport {fromXML, generateISD} from 'imsc';\nimport MediaPlayerEvents from '../MediaPlayerEvents';\nimport ConformanceViolationConstants from '../constants/ConformanceViolationConstants';\n\nfunction TTMLParser() {\n\n const context = this.context;\n const eventBus = EventBus(context).getInstance();\n\n /*\n * This TTML parser follows \"EBU-TT-D SUBTITLING DISTRIBUTION FORMAT - tech3380\" spec - https://tech.ebu.ch/docs/tech/tech3380.pdf.\n * */\n let instance,\n logger;\n\n let cueCounter = 0; // Used to give every cue a unique ID.\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n }\n\n function getCueID() {\n const id = 'cue_TTML_' + cueCounter;\n cueCounter++;\n return id;\n }\n\n /**\n * Parse the raw data and process it to return the HTML element representing the cue.\n * Return the region to be processed and controlled (hide/show) by the caption controller.\n * @param {string} data - raw data received from the TextSourceBuffer\n * @param {number} offsetTime - offset time to apply to cue time\n * @param {integer} startTimeSegment - startTime for the current segment\n * @param {integer} endTimeSegment - endTime for the current segment\n * @param {Array} images - images array referenced by subs MP4 box\n */\n function parse(data, offsetTime, startTimeSegment, endTimeSegment, images) {\n let errorMsg = '';\n const captionArray = [];\n let startTime,\n endTime,\n i;\n\n const content = {};\n\n const embeddedImages = {};\n let currentImageId = '';\n let accumulated_image_data = '';\n let metadataHandler = {\n\n onOpenTag: function (ns, name, attrs) {\n // cope with existing non-compliant content\n if (attrs[' imagetype'] && !attrs[' imageType']) {\n eventBus.trigger(MediaPlayerEvents.CONFORMANCE_VIOLATION, {\n level: ConformanceViolationConstants.LEVELS.ERROR,\n event: ConformanceViolationConstants.EVENTS.NON_COMPLIANT_SMPTE_IMAGE_ATTRIBUTE\n });\n attrs[' imageType'] = attrs[' imagetype'];\n }\n\n if (name === 'image' &&\n (ns === 'http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt' ||\n ns === 'http://www.smpte-ra.org/schemas/2052-1/2013/smpte-tt')) {\n if (!attrs[' imageType'] || attrs[' imageType'].value !== 'PNG') {\n logger.warn('smpte-tt imageType != PNG. Discarded');\n return;\n }\n currentImageId = attrs['http://www.w3.org/XML/1998/namespace id'].value;\n }\n },\n\n onCloseTag: function () {\n if (currentImageId) {\n embeddedImages[currentImageId] = accumulated_image_data.trim();\n }\n accumulated_image_data = '';\n currentImageId = '';\n },\n\n onText: function (contents) {\n if (currentImageId) {\n accumulated_image_data = accumulated_image_data + contents;\n }\n }\n };\n\n if (!data) {\n errorMsg = 'no ttml data to parse';\n throw new Error(errorMsg);\n }\n\n content.data = data;\n\n eventBus.trigger(Events.TTML_TO_PARSE, content);\n\n const imsc1doc = fromXML(content.data, function (msg) {\n errorMsg = msg;\n }, metadataHandler);\n\n eventBus.trigger(Events.TTML_PARSED, { ttmlString: content.data, ttmlDoc: imsc1doc });\n\n const mediaTimeEvents = imsc1doc.getMediaTimeEvents();\n\n for (i = 0; i < mediaTimeEvents.length; i++) {\n let isd = generateISD(imsc1doc, mediaTimeEvents[i], function (error) {\n errorMsg = error;\n });\n\n if (isd.contents.some(topLevelContents => topLevelContents.contents.length)) {\n //be sure that mediaTimeEvents values are in the mp4 segment time ranges.\n startTime = (mediaTimeEvents[i] + offsetTime) < startTimeSegment ? startTimeSegment : (mediaTimeEvents[i] + offsetTime);\n endTime = (mediaTimeEvents[i + 1] + offsetTime) > endTimeSegment ? endTimeSegment : (mediaTimeEvents[i + 1] + offsetTime);\n\n if (startTime < endTime) {\n captionArray.push({\n start: startTime,\n end: endTime,\n type: 'html',\n cueID: getCueID(),\n isd: isd,\n images: images,\n embeddedImages: embeddedImages\n });\n }\n }\n }\n\n if (errorMsg !== '') {\n logger.error(errorMsg);\n throw new Error(errorMsg);\n }\n\n return captionArray;\n }\n\n instance = {\n parse: parse\n };\n\n setup();\n return instance;\n}\n\nTTMLParser.__dashjs_factory_name = 'TTMLParser';\nexport default FactoryMaker.getSingletonFactory(TTMLParser);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../core/FactoryMaker';\nimport DefaultURLUtils from './DefaultURLUtils';\n\n/**\n * @module URLUtils\n * @ignore\n * @description Provides utility functions for operating on URLs.\n * Initially this is simply a method to determine the Base URL of a URL, but\n * should probably include other things provided all over the place such as\n * determining whether a URL is relative/absolute, resolving two paths etc.\n */\nfunction URLUtils() {\n\n let instance;\n let defaultURLUtils;\n let regexUtils = [];\n const context = this.context;\n\n function getUtils(url) {\n let i;\n for (i = 0; i < regexUtils.length; i++) {\n let regex = regexUtils[i].regex;\n if (regex.test(url)) {\n return regexUtils[i].utils;\n }\n }\n return defaultURLUtils;\n }\n\n function setup() {\n defaultURLUtils = DefaultURLUtils(context).getInstance();\n }\n\n /**\n * Register a module to handle specific url.\n * @param {regex} regex - url regex\n * @param {object} utils - object that handles the regex\n * @memberof module:URLUtils\n * @instance\n */\n function registerUrlRegex(regex, utils) {\n regexUtils.push({regex: regex, utils: utils});\n }\n\n function internalCall(functionName, url, baseUrl) {\n let utils = getUtils(baseUrl || url);\n return utils && typeof (utils[functionName]) === 'function' ? utils[functionName](url, baseUrl) : defaultURLUtils[functionName](url, baseUrl);\n }\n\n /**\n * Returns a string that contains the Base URL of a URL, if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:URLUtils\n * @instance\n */\n function parseBaseUrl(url) {\n return internalCall('parseBaseUrl', url);\n }\n\n /**\n * Returns a string that contains the scheme and origin of a URL,\n * if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:URLUtils\n * @instance\n */\n function parseOrigin(url) {\n return internalCall('parseOrigin', url);\n }\n\n /**\n * Returns a string that contains the fragment of a URL without scheme,\n * if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:URLUtils\n * @instance\n */\n function removeHostname(url) {\n return internalCall('removeHostname', url);\n }\n\n /**\n * Returns a string that contains the scheme of a URL, if determinable.\n * @param {string} url - full url\n * @return {string}\n * @memberof module:URLUtils\n * @instance\n */\n function parseScheme(url) {\n return internalCall('parseScheme', url);\n }\n\n /**\n * Determines whether the url is relative.\n * @return {boolean}\n * @param {string} url\n * @memberof module:URLUtils\n * @instance\n */\n function isRelative(url) {\n return internalCall('isRelative', url);\n }\n\n /**\n * Determines whether the url is path-absolute.\n * @return {bool}\n * @param {string} url\n * @memberof module:URLUtils\n * @instance\n */\n function isPathAbsolute(url) {\n return internalCall('isPathAbsolute', url);\n }\n\n /**\n * Determines whether the url is scheme-relative.\n * @return {bool}\n * @param {string} url\n * @memberof module:URLUtils\n * @instance\n */\n function isSchemeRelative(url) {\n return internalCall('isSchemeRelative', url);\n }\n\n /**\n * Determines whether the url is an HTTP-URL as defined in ISO/IEC\n * 23009-1:2014 3.1.15. ie URL with a fixed scheme of http or https\n * @return {bool}\n * @param {string} url\n * @memberof module:URLUtils\n * @instance\n */\n function isHTTPURL(url) {\n return internalCall('isHTTPURL', url);\n }\n\n /**\n * Determines whether the supplied url has https scheme\n * @return {bool}\n * @param {string} url\n * @memberof module:URLUtils\n * @instance\n */\n function isHTTPS(url) {\n return internalCall('isHTTPS', url);\n }\n\n /**\n * Resolves a url given an optional base url\n * @return {string}\n * @param {string} url\n * @param {string} [baseUrl]\n * @memberof module:URLUtils\n * @instance\n */\n function resolve(url, baseUrl) {\n return internalCall('resolve', url, baseUrl);\n }\n\n setup();\n instance = {\n registerUrlRegex: registerUrlRegex,\n parseBaseUrl: parseBaseUrl,\n parseOrigin: parseOrigin,\n parseScheme: parseScheme,\n isRelative: isRelative,\n isPathAbsolute: isPathAbsolute,\n isSchemeRelative: isSchemeRelative,\n isHTTPURL: isHTTPURL,\n isHTTPS: isHTTPS,\n removeHostname: removeHostname,\n resolve: resolve\n };\n\n return instance;\n}\n\nURLUtils.__dashjs_factory_name = 'URLUtils';\nconst factory = FactoryMaker.getSingletonFactory(URLUtils);\nexport default factory;\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport FactoryMaker from '../../core/FactoryMaker';\nimport Debug from '../../core/Debug';\n\nconst WEBVTT = 'WEBVTT';\n\nfunction VTTParser() {\n const context = this.context;\n\n let instance,\n logger,\n regExNewLine,\n regExToken,\n regExWhiteSpace,\n regExWhiteSpaceWordBoundary;\n\n function setup() {\n logger = Debug(context).getInstance().getLogger(instance);\n regExNewLine = /(?:\\r\\n|\\r|\\n)/gm;\n regExToken = /-->/;\n regExWhiteSpace = /(^[\\s]+|[\\s]+$)/g;\n regExWhiteSpaceWordBoundary = /\\s\\b/g;\n }\n\n function parse(data) {\n const captionArray = [];\n let len,\n lastStartTime;\n\n if (!data) {\n return captionArray;\n }\n\n data = data.split( regExNewLine );\n len = data.length;\n lastStartTime = -1;\n\n for (let i = 0 ; i < len; i++) {\n let item = data[i];\n\n if (item.length > 0 && item !== WEBVTT) {\n if (item.match(regExToken)) {\n const attributes = parseItemAttributes(item);\n const cuePoints = attributes.cuePoints;\n const styles = attributes.styles;\n const text = getSublines(data, i + 1);\n const startTime = convertCuePointTimes(cuePoints[0].replace(regExWhiteSpace, ''));\n const endTime = convertCuePointTimes(cuePoints[1].replace(regExWhiteSpace, ''));\n\n if ((!isNaN(startTime) && !isNaN(endTime)) && startTime >= lastStartTime && endTime > startTime) {\n if (text !== '') {\n lastStartTime = startTime;\n //TODO Make VO external so other parsers can use.\n captionArray.push({\n start: startTime,\n end: endTime,\n data: text,\n styles: styles\n });\n }\n else {\n logger.error('Skipping cue due to empty/malformed cue text');\n }\n }\n else {\n logger.error('Skipping cue due to incorrect cue timing');\n }\n }\n }\n }\n\n return captionArray;\n }\n\n function convertCuePointTimes(time) {\n const timeArray = time.split(':');\n const len = timeArray.length - 1;\n\n time = parseInt( timeArray[len - 1], 10 ) * 60 + parseFloat( timeArray[len]);\n\n if ( len === 2 ) {\n time += parseInt( timeArray[0], 10 ) * 3600;\n }\n\n return time;\n }\n\n function parseItemAttributes(data) {\n const vttCuePoints = data.split(regExToken);\n const arr = vttCuePoints[1].split(regExWhiteSpaceWordBoundary);\n arr.shift(); //remove first array index it is empty...\n vttCuePoints[1] = arr[0];\n arr.shift();\n return {cuePoints: vttCuePoints, styles: getCaptionStyles(arr)};\n }\n\n function getCaptionStyles(arr) {\n const styleObject = {};\n arr.forEach(function (element) {\n if (element.split(/:/).length > 1) {\n let val = element.split(/:/)[1];\n if (val && val.search(/%/) != -1) {\n val = parseInt(val.replace(/%/, ''), 10);\n }\n if (element.match(/align/) || element.match(/A/)) {\n styleObject.align = val;\n }\n if (element.match(/line/) || element.match(/L/) ) {\n styleObject.line = val;\n }\n if (element.match(/position/) || element.match(/P/) ) {\n styleObject.position = val;\n }\n if (element.match(/size/) || element.match(/S/)) {\n styleObject.size = val;\n }\n }\n });\n\n return styleObject;\n }\n\n /*\n * VTT can have multiple lines to display per cuepoint.\n */\n function getSublines(data, idx) {\n let i = idx;\n\n let subline = '';\n let lineData = '';\n let lineCount;\n\n while (data[i] !== '' && i < data.length) {\n i++;\n }\n\n lineCount = i - idx;\n if (lineCount > 1) {\n for (let j = 0; j < lineCount; j++) {\n lineData = data[(idx + j)];\n if (!lineData.match(regExToken)) {\n subline += lineData;\n if (j !== lineCount - 1) {\n subline += '\\n';\n }\n }\n else {\n // caption text should not have '-->' in it\n subline = '';\n break;\n }\n }\n } else {\n lineData = data[idx];\n if (!lineData.match(regExToken))\n subline = lineData;\n }\n return subline;\n }\n\n instance = {\n parse: parse\n };\n\n setup();\n return instance;\n}\nVTTParser.__dashjs_factory_name = 'VTTParser';\nexport default FactoryMaker.getSingletonFactory(VTTParser);\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\nimport FactoryMaker from '../../../core/FactoryMaker';\n\nfunction BasicSelector(config) {\n\n config = config || {};\n let instance;\n\n const blacklistController = config.blacklistController;\n\n function select(baseUrls) {\n let index = 0;\n let selectedBaseUrl;\n\n if (baseUrls && baseUrls.some((baseUrl, idx) => {\n index = idx;\n\n return (!blacklistController.contains(baseUrl.serviceLocation));\n })) {\n selectedBaseUrl = baseUrls[index];\n }\n\n return selectedBaseUrl;\n }\n\n instance = {\n select: select\n };\n\n return instance;\n}\n\nBasicSelector.__dashjs_factory_name = 'BasicSelector';\nexport default FactoryMaker.getClassFactory(BasicSelector);\n",
@@ -509,7 +523,7 @@
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\nimport MetricsConstants from '../../constants/MetricsConstants';\n\n/**\n * @class\n * @ignore\n */\nclass BufferState {\n /**\n * @description This Object holds reference to the current buffer state of the video element.\n */\n constructor() {\n /**\n * The Buffer Level Target determined by the BufferLevelRule.\n * @public\n */\n this.target = null;\n /**\n * Current buffer state. Will be MetricsConstants.BUFFER_EMPTY or MetricsConstants.BUFFER_LOADED.\n * @public\n */\n this.state = MetricsConstants.BUFFER_EMPTY;\n }\n}\n\nexport default BufferState;",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n * @class\n * @ignore\n */\nclass DVRInfo {\n /**\n * @description This Object holds reference to DVR availability window information.\n */\n constructor() {\n\n /**\n * The current time of the video element when this was created.\n * @public\n */\n this.time = null;\n /**\n * The current Segment Availability Range as an object with start and end properties.\n * It's delta defined by the timeShiftBufferDepth MPD attribute.\n * @public\n */\n this.range = null;\n /**\n * Reference to the internal ManifestInfo.js VO.\n * @public\n */\n this.manifestInfo = null;\n }\n}\n\nexport default DVRInfo;",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass DroppedFrames {\n /**\n * @description This Object holds reference to DroppedFrames count and the time it was recorded.\n */\n constructor()\n {\n /**\n * Real-Time | Time of the measurement of the dropped frames.\n * @public\n */\n this.time = null;\n /**\n * Number of dropped frames\n * @public\n */\n this.droppedFrames = null;\n }\n}\n\nexport default DroppedFrames;",
- "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc This Object holds reference to the HTTPRequest for manifest, fragment and xlink loading.\n * Members which are not defined in ISO23009-1 Annex D should be prefixed by a _ so that they are ignored\n * by Metrics Reporting code.\n * @ignore\n */\nclass HTTPRequest {\n /**\n * @class\n */\n constructor() {\n /**\n * Identifier of the TCP connection on which the HTTP request was sent.\n * @public\n */\n this.tcpid = null;\n /**\n * This is an optional parameter and should not be included in HTTP request/response transactions for progressive download.\n * The type of the request:\n * - MPD\n * - XLink expansion\n * - Initialization Fragment\n * - Index Fragment\n * - Media Fragment\n * - Bitstream Switching Fragment\n * - other\n * @public\n */\n this.type = null;\n /**\n * The original URL (before any redirects or failures)\n * @public\n */\n this.url = null;\n /**\n * The actual URL requested, if different from above\n * @public\n */\n this.actualurl = null;\n /**\n * The contents of the byte-range-spec part of the HTTP Range header.\n * @public\n */\n this.range = null;\n /**\n * Real-Time | The real time at which the request was sent.\n * @public\n */\n this.trequest = null;\n /**\n * Real-Time | The real time at which the first byte of the response was received.\n * @public\n */\n this.tresponse = null;\n /**\n * The HTTP response code.\n * @public\n */\n this.responsecode = null;\n /**\n * The duration of the throughput trace intervals (ms), for successful requests only.\n * @public\n */\n this.interval = null;\n /**\n * Throughput traces, for successful requests only.\n * @public\n */\n this.trace = [];\n\n /**\n * Type of stream (\"audio\" | \"video\" etc..)\n * @public\n */\n this._stream = null;\n /**\n * Real-Time | The real time at which the request finished.\n * @public\n */\n this._tfinish = null;\n /**\n * The duration of the media requests, if available, in milliseconds.\n * @public\n */\n this._mediaduration = null;\n /**\n * The media segment quality\n * @public\n */\n this._quality = null;\n /**\n * all the response headers from request.\n * @public\n */\n this._responseHeaders = null;\n /**\n * The selected service location for the request. string.\n * @public\n */\n this._serviceLocation = null;\n }\n}\n\n/**\n * @classdesc This Object holds reference to the progress of the HTTPRequest.\n * @ignore\n */\nclass HTTPRequestTrace {\n /**\n * @class\n */\n constructor() {\n /**\n * Real-Time | Measurement stream start.\n * @public\n */\n this.s = null;\n /**\n * Measurement stream duration (ms).\n * @public\n */\n this.d = null;\n /**\n * List of integers counting the bytes received in each trace interval within the measurement stream.\n * @public\n */\n this.b = [];\n }\n}\n\nHTTPRequest.GET = 'GET';\nHTTPRequest.HEAD = 'HEAD';\nHTTPRequest.MPD_TYPE = 'MPD';\nHTTPRequest.XLINK_EXPANSION_TYPE = 'XLinkExpansion';\nHTTPRequest.INIT_SEGMENT_TYPE = 'InitializationSegment';\nHTTPRequest.INDEX_SEGMENT_TYPE = 'IndexSegment';\nHTTPRequest.MEDIA_SEGMENT_TYPE = 'MediaSegment';\nHTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE = 'BitstreamSwitchingSegment';\nHTTPRequest.OTHER_TYPE = 'other';\n\nexport { HTTPRequest, HTTPRequestTrace };\n",
+ "/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc This Object holds reference to the HTTPRequest for manifest, fragment and xlink loading.\n * Members which are not defined in ISO23009-1 Annex D should be prefixed by a _ so that they are ignored\n * by Metrics Reporting code.\n * @ignore\n */\nclass HTTPRequest {\n /**\n * @class\n */\n constructor() {\n /**\n * Identifier of the TCP connection on which the HTTP request was sent.\n * @public\n */\n this.tcpid = null;\n /**\n * This is an optional parameter and should not be included in HTTP request/response transactions for progressive download.\n * The type of the request:\n * - MPD\n * - XLink expansion\n * - Initialization Fragment\n * - Index Fragment\n * - Media Fragment\n * - Bitstream Switching Fragment\n * - other\n * @public\n */\n this.type = null;\n /**\n * The original URL (before any redirects or failures)\n * @public\n */\n this.url = null;\n /**\n * The actual URL requested, if different from above\n * @public\n */\n this.actualurl = null;\n /**\n * The contents of the byte-range-spec part of the HTTP Range header.\n * @public\n */\n this.range = null;\n /**\n * Real-Time | The real time at which the request was sent.\n * @public\n */\n this.trequest = null;\n /**\n * Real-Time | The real time at which the first byte of the response was received.\n * @public\n */\n this.tresponse = null;\n /**\n * The HTTP response code.\n * @public\n */\n this.responsecode = null;\n /**\n * The duration of the throughput trace intervals (ms), for successful requests only.\n * @public\n */\n this.interval = null;\n /**\n * Throughput traces, for successful requests only.\n * @public\n */\n this.trace = [];\n\n /**\n * Type of stream (\"audio\" | \"video\" etc..)\n * @public\n */\n this._stream = null;\n /**\n * Real-Time | The real time at which the request finished.\n * @public\n */\n this._tfinish = null;\n /**\n * The duration of the media requests, if available, in seconds.\n * @public\n */\n this._mediaduration = null;\n /**\n * The media segment quality\n * @public\n */\n this._quality = null;\n /**\n * all the response headers from request.\n * @public\n */\n this._responseHeaders = null;\n /**\n * The selected service location for the request. string.\n * @public\n */\n this._serviceLocation = null;\n }\n}\n\n/**\n * @classdesc This Object holds reference to the progress of the HTTPRequest.\n * @ignore\n */\nclass HTTPRequestTrace {\n /**\n * @class\n */\n constructor() {\n /**\n * Real-Time | Measurement stream start.\n * @public\n */\n this.s = null;\n /**\n * Measurement stream duration (ms).\n * @public\n */\n this.d = null;\n /**\n * List of integers counting the bytes received in each trace interval within the measurement stream.\n * @public\n */\n this.b = [];\n }\n}\n\nHTTPRequest.GET = 'GET';\nHTTPRequest.HEAD = 'HEAD';\nHTTPRequest.MPD_TYPE = 'MPD';\nHTTPRequest.XLINK_EXPANSION_TYPE = 'XLinkExpansion';\nHTTPRequest.INIT_SEGMENT_TYPE = 'InitializationSegment';\nHTTPRequest.INDEX_SEGMENT_TYPE = 'IndexSegment';\nHTTPRequest.MEDIA_SEGMENT_TYPE = 'MediaSegment';\nHTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE = 'BitstreamSwitchingSegment';\nHTTPRequest.LICENSE = 'license';\nHTTPRequest.OTHER_TYPE = 'other';\n\nexport { HTTPRequest, HTTPRequestTrace };\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc This Object holds reference to the manifest update information.\n * @ignore\n */\nclass ManifestUpdate {\n /**\n * @class\n */\n constructor() {\n\n /**\n * Media Type Video | Audio | FragmentedText\n * @public\n */\n this.mediaType = null;\n /**\n * MPD Type static | dynamic\n * @public\n */\n this.type = null;\n /**\n * When this manifest update was requested\n * @public\n */\n this.requestTime = null;\n /**\n * When this manifest update was received\n * @public\n */\n this.fetchTime = null;\n /**\n * Calculated Availability Start time of the stream.\n * @public\n */\n this.availabilityStartTime = null;\n /**\n * the seek point (liveEdge for dynamic, Stream[0].startTime for static)\n * @public\n */\n this.presentationStartTime = 0;\n /**\n * The calculated difference between the server and client wall clock time\n * @public\n */\n this.clientTimeOffset = 0;\n /**\n * Actual element.currentTime\n * @public\n */\n this.currentTime = null;\n /**\n * Actual element.ranges\n * @public\n */\n this.buffered = null;\n /**\n * Static is fixed value of zero. dynamic should be ((Now-@availabilityStartTime) - elementCurrentTime)\n * @public\n */\n this.latency = 0;\n /**\n * Array holding list of StreamInfo VO Objects\n * @public\n */\n this.streamInfo = [];\n /**\n * Array holding list of RepresentationInfo VO Objects\n * @public\n */\n this.representationInfo = [];\n\n }\n}\n\n/**\n * @classdesc This Object holds reference to the current period's stream information when the manifest was updated.\n * @ignore\n */\nclass ManifestUpdateStreamInfo {\n /**\n * @class\n */\n constructor() {\n /**\n * Stream@id\n * @public\n */\n this.id = null;\n /**\n * Period Index\n * @public\n */\n this.index = null;\n /**\n * Stream@start\n * @public\n */\n this.start = null;\n /**\n * Stream@duration\n * @public\n */\n this.duration = null;\n }\n}\n\n/**\n * @classdesc This Object holds reference to the current representation's info when the manifest was updated.\n * @ignore\n */\nclass ManifestUpdateRepresentationInfo {\n /**\n * @class\n */\n constructor() {\n /**\n * Track@id\n * @public\n */\n this.id = null;\n /**\n * Representation Index\n * @public\n */\n this.index = null;\n /**\n * Media Type Video | Audio | FragmentedText\n * @public\n */\n this.mediaType = null;\n /**\n * Which representation\n * @public\n */\n this.streamIndex = null;\n /**\n * Holds reference to @presentationTimeOffset\n * @public\n */\n this.presentationTimeOffset = null;\n /**\n * Holds reference to @startNumber\n * @public\n */\n this.startNumber = null;\n /**\n * list|template|timeline\n * @public\n */\n this.fragmentInfoType = null;\n }\n}\n\nexport { ManifestUpdate, ManifestUpdateStreamInfo, ManifestUpdateRepresentationInfo };\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @classdesc a PlayList from ISO23009-1 Annex D, this Object holds reference to the playback session information\n * @ignore\n */\nclass PlayList {\n /**\n * @class\n */\n constructor() {\n\n /**\n * Timestamp of the user action that starts the playback stream...\n * @public\n */\n this.start = null;\n /**\n * Presentation time at which playout was requested by the user...\n * @public\n */\n this.mstart = null;\n /**\n * Type of user action which triggered playout\n * - New playout request (e.g. initial playout or seeking)\n * - Resume from pause\n * - Other user request (e.g. user-requested quality change)\n * - Start of a metrics collection stream (hence earlier entries in the play list not collected)\n * @public\n */\n this.starttype = null;\n\n /**\n * List of streams of continuous rendering of decoded samples.\n * @public\n */\n this.trace = [];\n }\n}\n\n/* Public Static Constants */\nPlayList.INITIAL_PLAYOUT_START_REASON = 'initial_playout';\nPlayList.SEEK_START_REASON = 'seek';\nPlayList.RESUME_FROM_PAUSE_START_REASON = 'resume';\nPlayList.METRICS_COLLECTION_START_REASON = 'metrics_collection_start';\n\n/**\n * @classdesc a PlayList.Trace from ISO23009-1 Annex D\n * @ignore\n */\nclass PlayListTrace {\n /**\n * @class\n */\n constructor() {\n /**\n * The value of the Representation@id of the Representation from which the samples were taken.\n * @type {string}\n * @public\n */\n this.representationid = null;\n /**\n * If not present, this metrics concerns the Representation as a whole.\n * If present, subreplevel indicates the greatest value of any\n * Subrepresentation@level being rendered.\n * @type {number}\n * @public\n */\n this.subreplevel = null;\n /**\n * The time at which the first sample was rendered\n * @type {number}\n * @public\n */\n this.start = null;\n /**\n * The presentation time of the first sample rendered.\n * @type {number}\n * @public\n */\n this.mstart = null;\n /**\n * The duration of the continuously presented samples (which is the same in real time and media time). \"Continuously presented\" means that the media clock continued to advance at the playout speed throughout the interval. NOTE: the spec does not call out the units, but all other durations etc are in ms, and we use ms too.\n * @type {number}\n * @public\n */\n this.duration = null;\n /**\n * The playback speed relative to normal playback speed (i.e.normal forward playback speed is 1.0).\n * @type {number}\n * @public\n */\n this.playbackspeed = null;\n /**\n * The reason why continuous presentation of this Representation was stopped.\n * representation switch\n * rebuffering\n * user request\n * end of Period\n * end of Stream\n * end of content\n * end of a metrics collection period\n *\n * @type {string}\n * @public\n */\n this.stopreason = null;\n }\n}\n\nPlayListTrace.REPRESENTATION_SWITCH_STOP_REASON = 'representation_switch';\nPlayListTrace.REBUFFERING_REASON = 'rebuffering';\nPlayListTrace.USER_REQUEST_STOP_REASON = 'user_request';\nPlayListTrace.END_OF_PERIOD_STOP_REASON = 'end_of_period';\nPlayListTrace.END_OF_CONTENT_STOP_REASON = 'end_of_content';\nPlayListTrace.METRICS_COLLECTION_STOP_REASON = 'metrics_collection_end';\nPlayListTrace.FAILURE_STOP_REASON = 'failure';\n\nexport { PlayList, PlayListTrace };\n",
"/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n * * Redistributions of source code must retain the above copyright notice, this\n * list of conditions and the following disclaimer.\n * * Redistributions in binary form must reproduce the above copyright notice,\n * this list of conditions and the following disclaimer in the documentation and/or\n * other materials provided with the distribution.\n * * Neither the name of Dash Industry Forum nor the names of its\n * contributors may be used to endorse or promote products derived from this software\n * without specific prior written permission.\n *\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n * POSSIBILITY OF SUCH DAMAGE.\n */\n/**\n * @class\n * @ignore\n */\nclass RepresentationSwitch {\n /**\n * @description This Object holds reference to the info at quality switch between two representations.\n */\n constructor() {\n\n /**\n * Time of the switch event.\n * @public\n */\n this.t = null;\n /**\n * The media presentation time of the earliest access unit\n * (out of all media content components) played out from\n * the Representation.\n *\n * @public\n */\n this.mt = null;\n /**\n * Value of Representation@id identifying the switch-to Representation.\n * @public\n */\n this.to = null;\n /**\n * If not present, this metrics concerns the Representation as a whole.\n * If present, lto indicates the value of SubRepresentation@level within\n * Representation identifying the switch-to level of the Representation.\n *\n * @public\n */\n this.lto = null;\n\n }\n}\n\nexport default RepresentationSwitch;",
diff --git a/dist/dash.all.min.js b/dist/dash.all.min.js
index a9809692f1..daf5879b7a 100644
--- a/dist/dash.all.min.js
+++ b/dist/dash.all.min.js
@@ -1,3 +1,3 @@
-/*! v3.2.0-dce59b04, 2020-12-11T12:14:07Z */
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DataView(this._raw.buffer,this._offset,this.size)}this._incomplete||(this._boxProcessors[this.type]&&this._boxProcessors[this.type].call(this),-1!==this._boxContainers.indexOf(this.type)?this._parseContainerBox():this._data=this._readData())}},r.prototype._parseFullBox=function(){this.version=this._readUint(8),this.flags=this._readUint(24)},r.prototype._parseContainerBox=function(){for(this.boxes=[];this._cursor.offset-this._raw.byteOffset>3}else this.size+=e>>3},r.prototype._writeUint=function(e,t){if(this._rawo){var n,r,i=this._cursor.offset-this._rawo.byteOffset;switch(e){case 8:this._rawo.setUint8(i,t);break;case 16:this._rawo.setUint16(i,t);break;case 24:n=(16776960&t)>>8,r=255&t,this._rawo.setUint16(i,n),this._rawo.setUint8(2+i,r);break;case 32:this._rawo.setUint32(i,t);break;case 64:r=t-(n=Math.floor(t/Math.pow(2,32)))*Math.pow(2,32),this._rawo.setUint32(i,n),this._rawo.setUint32(4+i,r)}this._cursor.offset+=e>>3}else 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n=0;n>10&31),96+(this.language>>5&31),96+(31&this.language))),this._procField("pre_defined","uint",16)},r.prototype._boxProcessors.mehd=function(){this._procFullBox(),this._procField("fragment_duration","uint",1==this.version?64:32)},r.prototype._boxProcessors.mfhd=function(){this._procFullBox(),this._procField("sequence_number","uint",32)},r.prototype._boxProcessors.mfro=function(){this._procFullBox(),this._procField("mfra_size","uint",32)},r.prototype._boxProcessors.mp4a=r.prototype._boxProcessors.enca=function(){this._procFieldArray("reserved1",6,"uint",8),this._procField("data_reference_index","uint",16),this._procFieldArray("reserved2",2,"uint",32),this._procField("channelcount","uint",16),this._procField("samplesize","uint",16),this._procField("pre_defined","uint",16),this._procField("reserved3","uint",16),this._procField("samplerate","template",32),this._procField("esds","data",-1)},r.prototype._boxProcessors.mvhd=function(){this._procFullBox(),this._procField("creation_time","uint",1==this.version?64:32),this._procField("modification_time","uint",1==this.version?64:32),this._procField("timescale","uint",32),this._procField("duration","uint",1==this.version?64:32),this._procField("rate","template",32),this._procField("volume","template",16),this._procField("reserved1","uint",16),this._procFieldArray("reserved2",2,"uint",32),this._procFieldArray("matrix",9,"template",32),this._procFieldArray("pre_defined",6,"uint",32),this._procField("next_track_ID","uint",32)},r.prototype._boxProcessors.payl=function(){this._procField("cue_text","utf8")},r.prototype._boxProcessors.pssh=function(){this._procFullBox(),this._procFieldArray("SystemID",16,"uint",8),this._procField("DataSize","uint",32),this._procFieldArray("Data",this.DataSize,"uint",8)},r.prototype._boxProcessors.schm=function(){this._procFullBox(),this._procField("scheme_type","uint",32),this._procField("scheme_version","uint",32),1&this.flags&&this._procField("scheme_uri","string",-1)},r.prototype._boxProcessors.sdtp=function(){this._procFullBox();var e=-1;this._parsing&&(e=this._raw.byteLength-(this._cursor.offset-this._raw.byteOffset)),this._procFieldArray("sample_dependency_table",e,"uint",8)},r.prototype._boxProcessors.sidx=function(){this._procFullBox(),this._procField("reference_ID","uint",32),this._procField("timescale","uint",32),this._procField("earliest_presentation_time","uint",1==this.version?64:32),this._procField("first_offset","uint",1==this.version?64:32),this._procField("reserved","uint",16),this._procField("reference_count","uint",16),this._procEntries("references",this.reference_count,function(e){this._parsing||(e.reference=(1&e.reference_type)<<31,e.reference|=2147483647&e.referenced_size,e.sap=(1&e.starts_with_SAP)<<31,e.sap|=(3&e.SAP_type)<<28,e.sap|=268435455&e.SAP_delta_time),this._procEntryField(e,"reference","uint",32),this._procEntryField(e,"subsegment_duration","uint",32),this._procEntryField(e,"sap","uint",32),this._parsing&&(e.reference_type=e.reference>>31&1,e.referenced_size=2147483647&e.reference,e.starts_with_SAP=e.sap>>31&1,e.SAP_type=e.sap>>28&7,e.SAP_delta_time=268435455&e.sap)})},r.prototype._boxProcessors.smhd=function(){this._procFullBox(),this._procField("balance","uint",16),this._procField("reserved","uint",16)},r.prototype._boxProcessors.ssix=function(){this._procFullBox(),this._procField("subsegment_count","uint",32),this._procEntries("subsegments",this.subsegment_count,function(e){this._procEntryField(e,"ranges_count","uint",32),this._procSubEntries(e,"ranges",e.ranges_count,function(e){this._procEntryField(e,"level","uint",8),this._procEntryField(e,"range_size","uint",24)})})},r.prototype._boxProcessors.stsd=function(){this._procFullBox(),this._procField("entry_count","uint",32),this._procSubBoxes("entries",this.entry_count)},r.prototype._boxProcessors.subs=function(){this._procFullBox(),this._procField("entry_count","uint",32),this._procEntries("entries",this.entry_count,function(e){this._procEntryField(e,"sample_delta","uint",32),this._procEntryField(e,"subsample_count","uint",16),this._procSubEntries(e,"subsamples",e.subsample_count,function(e){this._procEntryField(e,"subsample_size","uint",1===this.version?32:16),this._procEntryField(e,"subsample_priority","uint",8),this._procEntryField(e,"discardable","uint",8),this._procEntryField(e,"codec_specific_parameters","uint",32)})})},r.prototype._boxProcessors.tenc=function(){this._procFullBox(),this._procField("default_IsEncrypted","uint",24),this._procField("default_IV_size","uint",8),this._procFieldArray("default_KID",16,"uint",8)},r.prototype._boxProcessors.tfdt=function(){this._procFullBox(),this._procField("baseMediaDecodeTime","uint",1==this.version?64:32)},r.prototype._boxProcessors.tfhd=function(){this._procFullBox(),this._procField("track_ID","uint",32),1&this.flags&&this._procField("base_data_offset","uint",64),2&this.flags&&this._procField("sample_description_offset","uint",32),8&this.flags&&this._procField("default_sample_duration","uint",32),16&this.flags&&this._procField("default_sample_size","uint",32),32&this.flags&&this._procField("default_sample_flags","uint",32)},r.prototype._boxProcessors.tfra=function(){this._procFullBox(),this._procField("track_ID","uint",32),this._parsing||(this.reserved=0,this.reserved|=(48&this.length_size_of_traf_num)<<4,this.reserved|=(12&this.length_size_of_trun_num)<<2,this.reserved|=3&this.length_size_of_sample_num),this._procField("reserved","uint",32),this._parsing&&(this.length_size_of_traf_num=(48&this.reserved)>>4,this.length_size_of_trun_num=(12&this.reserved)>>2,this.length_size_of_sample_num=3&this.reserved),this._procField("number_of_entry","uint",32),this._procEntries("entries",this.number_of_entry,function(e){this._procEntryField(e,"time","uint",1===this.version?64:32),this._procEntryField(e,"moof_offset","uint",1===this.version?64:32),this._procEntryField(e,"traf_number","uint",8*(this.length_size_of_traf_num+1)),this._procEntryField(e,"trun_number","uint",8*(this.length_size_of_trun_num+1)),this._procEntryField(e,"sample_number","uint",8*(this.length_size_of_sample_num+1))})},r.prototype._boxProcessors.tkhd=function(){this._procFullBox(),this._procField("creation_time","uint",1==this.version?64:32),this._procField("modification_time","uint",1==this.version?64:32),this._procField("track_ID","uint",32),this._procField("reserved1","uint",32),this._procField("duration","uint",1==this.version?64:32),this._procFieldArray("reserved2",2,"uint",32),this._procField("layer","uint",16),this._procField("alternate_group","uint",16),this._procField("volume","template",16),this._procField("reserved3","uint",16),this._procFieldArray("matrix",9,"template",32),this._procField("width","template",32),this._procField("height","template",32)},r.prototype._boxProcessors.trex=function(){this._procFullBox(),this._procField("track_ID","uint",32),this._procField("default_sample_description_index","uint",32),this._procField("default_sample_duration","uint",32),this._procField("default_sample_size","uint",32),this._procField("default_sample_flags","uint",32)},r.prototype._boxProcessors.trun=function(){this._procFullBox(),this._procField("sample_count","uint",32),1&this.flags&&this._procField("data_offset","int",32),4&this.flags&&this._procField("first_sample_flags","uint",32),this._procEntries("samples",this.sample_count,function(e){256&this.flags&&this._procEntryField(e,"sample_duration","uint",32),512&this.flags&&this._procEntryField(e,"sample_size","uint",32),1024&this.flags&&this._procEntryField(e,"sample_flags","uint",32),2048&this.flags&&this._procEntryField(e,"sample_composition_time_offset",1===this.version?"int":"uint",32)})},r.prototype._boxProcessors["url "]=r.prototype._boxProcessors["urn "]=function(){this._procFullBox(),"urn "===this.type&&this._procField("name","string",-1),this._procField("location","string",-1)},r.prototype._boxProcessors.vlab=function(){this._procField("source_label","utf8")},r.prototype._boxProcessors.vmhd=function(){this._procFullBox(),this._procField("graphicsmode","uint",16),this._procFieldArray("opcolor",3,"uint",16)},r.prototype._boxProcessors.vttC=function(){this._procField("config","utf8")},r.prototype._boxProcessors.vtte=function(){}},{}],10:[function(e,t,n){(function(e){function t(e){return Object.prototype.toString.call(e)}n.isArray=function(e){return Array.isArray?Array.isArray(e):"[object Array]"===t(e)},n.isBoolean=function(e){return"boolean"==typeof e},n.isNull=function(e){return null===e},n.isNullOrUndefined=function(e){return null==e},n.isNumber=function(e){return"number"==typeof e},n.isString=function(e){return"string"==typeof e},n.isSymbol=function(e){return"symbol"==typeof e},n.isUndefined=function(e){return void 0===e},n.isRegExp=function(e){return"[object RegExp]"===t(e)},n.isObject=function(e){return"object"==typeof e&&null!==e},n.isDate=function(e){return"[object Date]"===t(e)},n.isError=function(e){return"[object Error]"===t(e)||e instanceof Error},n.isFunction=function(e){return"function"==typeof e},n.isPrimitive=function(e){return null===e||"boolean"==typeof e||"number"==typeof e||"string"==typeof e||"symbol"==typeof e||void 0===e},n.isBuffer=e.isBuffer}).call(this,{isBuffer:e(22)})},{22:22}],11:[function(e,t,n){var s=Object.create||function(e){function t(){}return t.prototype=e,new t},o=Object.keys||function(e){var t,n=[];for(t in e)Object.prototype.hasOwnProperty.call(e,t)&&n.push(t);return t},r=Function.prototype.bind||function(e){var t=this;return function(){return t.apply(e,arguments)}};function 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