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dash_parser_segment_template_unit.js
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dash_parser_segment_template_unit.js
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/*! @license
* Shaka Player
* Copyright 2016 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
goog.require('goog.asserts');
goog.require('shaka.test.Dash');
goog.require('shaka.test.FakeNetworkingEngine');
goog.require('shaka.test.ManifestParser');
goog.require('shaka.test.Util');
goog.require('shaka.util.Error');
goog.require('shaka.util.PlayerConfiguration');
goog.requireType('shaka.dash.DashParser');
describe('DashParser SegmentTemplate', () => {
const Dash = shaka.test.Dash;
const ManifestParser = shaka.test.ManifestParser;
const baseUri = 'http://example.com/';
const mp4IndexSegmentUri = '/base/test/test/assets/index-segment.mp4';
const webmIndexSegmentUri = '/base/test/test/assets/index-segment.webm';
const webmInitSegmentUri = '/base/test/test/assets/init-segment.webm';
/** @type {!shaka.test.FakeNetworkingEngine} */
let fakeNetEngine;
/** @type {!shaka.dash.DashParser} */
let parser;
/** @type {shaka.extern.ManifestParser.PlayerInterface} */
let playerInterface;
/** @type {!ArrayBuffer} */
let mp4Index;
/** @type {!ArrayBuffer} */
let webmIndex;
/** @type {!ArrayBuffer} */
let webmInit;
beforeAll(async () => {
mp4Index = await shaka.test.Util.fetch(mp4IndexSegmentUri);
webmIndex = await shaka.test.Util.fetch(webmIndexSegmentUri);
webmInit = await shaka.test.Util.fetch(webmInitSegmentUri);
});
beforeEach(() => {
fakeNetEngine = new shaka.test.FakeNetworkingEngine();
parser = shaka.test.Dash.makeDashParser();
playerInterface = {
networkingEngine: fakeNetEngine,
filter: (manifest) => Promise.resolve(),
makeTextStreamsForClosedCaptions: (manifest) => {},
onTimelineRegionAdded: fail, // Should not have any EventStream elements.
onEvent: fail,
onError: fail,
isLowLatencyMode: () => false,
isAutoLowLatencyMode: () => false,
enableLowLatencyMode: () => {},
};
});
shaka.test.Dash.makeTimelineTests(
'SegmentTemplate', 'media="s$Number$.mp4"', []);
describe('duration', () => {
it('basic support', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="1" media="s$Number$.mp4"',
' duration="10" />',
], /* duration= */ 60);
const references = [
ManifestParser.makeReference('s1.mp4', 0, 10, baseUri),
ManifestParser.makeReference('s2.mp4', 10, 20, baseUri),
ManifestParser.makeReference('s3.mp4', 20, 30, baseUri),
ManifestParser.makeReference('s4.mp4', 30, 40, baseUri),
ManifestParser.makeReference('s5.mp4', 40, 50, baseUri),
ManifestParser.makeReference('s6.mp4', 50, 60, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('with @startNumber > 1', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="10" media="s$Number$.mp4"',
' duration="10" />',
], /* duration= */ 30);
const references = [
ManifestParser.makeReference('s10.mp4', 0, 10, baseUri),
ManifestParser.makeReference('s11.mp4', 10, 20, baseUri),
ManifestParser.makeReference('s12.mp4', 20, 30, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('honors presentationTimeOffset', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate media="s$Number$.mp4" duration="10"',
' presentationTimeOffset="50" />',
], /* duration= */ 30, /* startTime= */ 40);
fakeNetEngine.setResponseText('dummy://foo', source);
const manifest = await parser.start('dummy://foo', playerInterface);
expect(manifest.variants.length).toBe(1);
const stream = manifest.variants[0].video;
expect(stream).toBeTruthy();
await stream.createSegmentIndex();
const expectedRef1 = ManifestParser.makeReference(
's1.mp4', 40, 50, baseUri);
expectedRef1.timestampOffset = -10;
const expectedRef2 = ManifestParser.makeReference(
's2.mp4', 50, 60, baseUri);
expectedRef2.timestampOffset = -10;
const iterator = stream.segmentIndex[Symbol.iterator]();
const ref1 = iterator.seek(45);
const ref2 = iterator.seek(55);
expect(ref1).toEqual(expectedRef1);
expect(ref2).toEqual(expectedRef2);
});
it('handles segments larger than the period', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate media="s$Number$.mp4" duration="60" />',
], /* duration= */ 30);
// The first segment is number 1 and position 0.
// Although the segment is 60 seconds long, it is clipped to the period
// duration of 30 seconds.
const ref = ManifestParser.makeReference('s1.mp4', 0, 30, baseUri);
ref.trueEndTime = 60;
const references = [ref];
await Dash.testSegmentIndex(source, references);
});
it('presentation start is parsed correctly', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate media="s$Number$.mp4" duration="60" />',
], /* duration= */ 30, /* startTime= */ 30);
fakeNetEngine.setResponseText('dummy://foo', source);
const manifest = await parser.start('dummy://foo', playerInterface);
expect(manifest.presentationTimeline.getSeekRangeStart()).toBe(30);
});
it('limits segment count for Live', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate media="s$Number$.mp4" duration="1" />',
]);
const config = shaka.util.PlayerConfiguration.createDefault().manifest;
config.dash.initialSegmentLimit = 100;
parser.configure(config);
fakeNetEngine.setResponseText('dummy://foo', source);
const manifest = await parser.start('dummy://foo', playerInterface);
const stream = manifest.variants[0].video;
await stream.createSegmentIndex();
goog.asserts.assert(stream.segmentIndex, 'Should have created index');
const segments = Array.from(stream.segmentIndex);
expect(segments.length).toBe(config.dash.initialSegmentLimit);
});
it('doesn\'t limit segment count for VOD', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate media="s$Number$.mp4" duration="1" />',
], /* duration= */ 200);
const config = shaka.util.PlayerConfiguration.createDefault().manifest;
config.dash.initialSegmentLimit = 100;
parser.configure(config);
fakeNetEngine.setResponseText('dummy://foo', source);
const manifest = await parser.start('dummy://foo', playerInterface);
const stream = manifest.variants[0].video;
await stream.createSegmentIndex();
goog.asserts.assert(stream.segmentIndex, 'Should have created index');
const segments = Array.from(stream.segmentIndex);
expect(segments.length).toBe(200);
});
});
describe('index', () => {
it('basic support', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="1" index="index-$Bandwidth$.mp4"',
' initialization="init-$Bandwidth$.mp4" />',
]);
fakeNetEngine
.setResponseText('dummy://foo', source)
.setResponseValue('http://example.com/index-500.mp4', mp4Index);
const manifest = await parser.start('dummy://foo', playerInterface);
const segmentReference =
await Dash.getFirstVideoSegmentReference(manifest);
const initSegmentReference = segmentReference.initSegmentReference;
expect(initSegmentReference.getUris()).toEqual(
['http://example.com/init-500.mp4']);
expect(initSegmentReference.getStartByte()).toBe(0);
expect(initSegmentReference.getEndByte()).toBe(null);
expect(fakeNetEngine.request).toHaveBeenCalledTimes(2);
fakeNetEngine.expectRangeRequest(
'http://example.com/index-500.mp4', 0, null);
});
it('defaults to index with multiple segment sources', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="1" index="index-$Bandwidth$.mp4"',
' initialization="init-$Bandwidth$.mp4">',
' <SegmentTimeline>',
' <S t="0" d="3" r="12" />',
' </SegmentTimeline>',
'</SegmentTemplate>',
]);
fakeNetEngine
.setResponseText('dummy://foo', source)
.setResponseValue('http://example.com/index-500.mp4', mp4Index);
const manifest = await parser.start('dummy://foo', playerInterface);
const segmentReference =
await Dash.getFirstVideoSegmentReference(manifest);
const initSegmentReference = segmentReference.initSegmentReference;
expect(initSegmentReference.getUris()).toEqual(
['http://example.com/init-500.mp4']);
expect(initSegmentReference.getStartByte()).toBe(0);
expect(initSegmentReference.getEndByte()).toBe(null);
expect(fakeNetEngine.request).toHaveBeenCalledTimes(2);
fakeNetEngine.expectRangeRequest(
'http://example.com/index-500.mp4', 0, null);
});
it('requests init data for WebM', async () => {
const source = [
'<MPD mediaPresentationDuration="PT75S">',
' <Period>',
' <BaseURL>http://example.com</BaseURL>',
' <AdaptationSet mimeType="video/webm">',
' <Representation bandwidth="500">',
' <SegmentTemplate startNumber="1"',
' index="index-$Bandwidth$.webm"',
' initialization="init-$Bandwidth$.webm" />',
' </Representation>',
' </AdaptationSet>',
' </Period>',
'</MPD>',
].join('\n');
fakeNetEngine
.setResponseText('dummy://foo', source)
.setResponseValue('http://example.com/index-500.webm', webmIndex)
.setResponseValue('http://example.com/init-500.webm', webmInit);
const manifest = await parser.start('dummy://foo', playerInterface);
const segmentReference =
await Dash.getFirstVideoSegmentReference(manifest);
const initSegmentReference = segmentReference.initSegmentReference;
expect(initSegmentReference.getUris()).toEqual(
['http://example.com/init-500.webm']);
expect(initSegmentReference.getStartByte()).toBe(0);
expect(initSegmentReference.getEndByte()).toBe(null);
expect(fakeNetEngine.request).toHaveBeenCalledTimes(3);
fakeNetEngine.expectRangeRequest(
'http://example.com/init-500.webm', 0, null);
fakeNetEngine.expectRangeRequest(
'http://example.com/index-500.webm', 0, null);
});
it('inherits from Period', async () => {
const source = [
'<MPD mediaPresentationDuration="PT75S">',
' <Period>',
' <BaseURL>http://example.com</BaseURL>',
' <SegmentTemplate startNumber="1" index="index-$Bandwidth$.mp4"',
' initialization="init-$Bandwidth$.mp4" />',
' <AdaptationSet mimeType="video/mp4">',
' <Representation bandwidth="500" />',
' </AdaptationSet>',
' </Period>',
'</MPD>',
].join('\n');
fakeNetEngine
.setResponseText('dummy://foo', source)
.setResponseValue('http://example.com/index-500.mp4', mp4Index);
const manifest = await parser.start('dummy://foo', playerInterface);
const segmentReference =
await Dash.getFirstVideoSegmentReference(manifest);
const initSegmentReference = segmentReference.initSegmentReference;
expect(initSegmentReference.getUris()).toEqual(
['http://example.com/init-500.mp4']);
expect(initSegmentReference.getStartByte()).toBe(0);
expect(initSegmentReference.getEndByte()).toBe(null);
expect(fakeNetEngine.request).toHaveBeenCalledTimes(2);
fakeNetEngine.expectRangeRequest(
'http://example.com/index-500.mp4', 0, null);
});
it('inherits from AdaptationSet', async () => {
const source = [
'<MPD mediaPresentationDuration="PT75S">',
' <Period>',
' <AdaptationSet mimeType="video/mp4">',
' <BaseURL>http://example.com</BaseURL>',
' <SegmentTemplate startNumber="1" index="index-$Bandwidth$.mp4"',
' initialization="init-$Bandwidth$.mp4" />',
' <Representation bandwidth="500" />',
' </AdaptationSet>',
' </Period>',
'</MPD>',
].join('\n');
fakeNetEngine
.setResponseText('dummy://foo', source)
.setResponseValue('http://example.com/index-500.mp4', mp4Index);
const manifest = await parser.start('dummy://foo', playerInterface);
const segmentReference =
await Dash.getFirstVideoSegmentReference(manifest);
const initSegmentReference = segmentReference.initSegmentReference;
expect(initSegmentReference.getUris()).toEqual(
['http://example.com/init-500.mp4']);
expect(initSegmentReference.getStartByte()).toBe(0);
expect(initSegmentReference.getEndByte()).toBe(null);
expect(fakeNetEngine.request).toHaveBeenCalledTimes(2);
fakeNetEngine.expectRangeRequest(
'http://example.com/index-500.mp4', 0, null);
});
});
describe('media template', () => {
it('defaults to timeline when also has duration', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="0" duration="10"',
' media="$Number$-$Time$-$Bandwidth$.mp4">',
' <SegmentTimeline>',
' <S t="0" d="15" r="2" />',
' </SegmentTimeline>',
'</SegmentTemplate>',
], /* duration= */ 45);
const references = [
ManifestParser.makeReference('0-0-500.mp4', 0, 15, baseUri),
ManifestParser.makeReference('1-15-500.mp4', 15, 30, baseUri),
ManifestParser.makeReference('2-30-500.mp4', 30, 45, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('uses PTO with t attribute missing', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="0" presentationTimeOffset="10"',
' media="$Number$-$Time$-$Bandwidth$.mp4">',
' <SegmentTimeline>',
' <S d="15" r="2" />',
' </SegmentTimeline>',
'</SegmentTemplate>',
], /* duration= */ 35);
const references = [
ManifestParser.makeReference('0-0-500.mp4', -10, 5, baseUri),
ManifestParser.makeReference('1-15-500.mp4', 5, 20, baseUri),
ManifestParser.makeReference('2-30-500.mp4', 20, 35, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('with @startnumber = 0', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="0" duration="10"',
' media="$Number$-$Time$-$Bandwidth$.mp4" />',
], /* duration= */ 30);
const references = [
ManifestParser.makeReference('0-0-500.mp4', 0, 10, baseUri),
ManifestParser.makeReference('1-10-500.mp4', 10, 20, baseUri),
ManifestParser.makeReference('2-20-500.mp4', 20, 30, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('with @startNumber = 1', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="1" duration="10"',
' media="$Number$-$Time$-$Bandwidth$.mp4" />',
], /* duration= */ 30);
const references = [
ManifestParser.makeReference('1-0-500.mp4', 0, 10, baseUri),
ManifestParser.makeReference('2-10-500.mp4', 10, 20, baseUri),
ManifestParser.makeReference('3-20-500.mp4', 20, 30, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('with @startNumber > 1', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="10" duration="10"',
' media="$Number$-$Time$-$Bandwidth$.mp4" />',
], /* duration= */ 30);
const references = [
ManifestParser.makeReference('10-0-500.mp4', 0, 10, baseUri),
ManifestParser.makeReference('11-10-500.mp4', 10, 20, baseUri),
ManifestParser.makeReference('12-20-500.mp4', 20, 30, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('with @timescale > 1', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="1" timescale="9000" duration="9000"',
' media="$Number$-$Time$-$Bandwidth$.mp4" />',
], /* duration= */ 3);
const references = [
ManifestParser.makeReference('1-0-500.mp4', 0, 1, baseUri),
ManifestParser.makeReference('2-9000-500.mp4', 1, 2, baseUri),
ManifestParser.makeReference('3-18000-500.mp4', 2, 3, baseUri),
];
await Dash.testSegmentIndex(source, references);
});
it('across representations', async () => {
const source = [
'<MPD>',
' <Period duration="PT60S">',
' <AdaptationSet mimeType="video/webm">',
' <BaseURL>http://example.com</BaseURL>',
' <SegmentTemplate startNumber="1" duration="10"',
' media="$Number$-$Time$-$Bandwidth$.mp4" />',
' <Representation bandwidth="100" />',
' <Representation bandwidth="200" />',
' <Representation bandwidth="300" />',
' </AdaptationSet>',
' </Period>',
'</MPD>',
].join('\n');
fakeNetEngine.setResponseText('dummy://foo', source);
const actual = await parser.start('dummy://foo', playerInterface);
expect(actual).toBeTruthy();
const variants = actual.variants;
expect(variants.length).toBe(3);
await variants[0].video.createSegmentIndex();
await variants[1].video.createSegmentIndex();
await variants[2].video.createSegmentIndex();
const getRefAt = (stream, time) => {
return stream.segmentIndex[Symbol.iterator]().seek(time);
};
expect(getRefAt(variants[0].video, 0)).toEqual(
ManifestParser.makeReference('1-0-100.mp4', 0, 10, baseUri));
expect(getRefAt(variants[0].video, 12)).toEqual(
ManifestParser.makeReference('2-10-100.mp4', 10, 20, baseUri));
expect(getRefAt(variants[1].video, 0)).toEqual(
ManifestParser.makeReference('1-0-200.mp4', 0, 10, baseUri));
expect(getRefAt(variants[1].video, 12)).toEqual(
ManifestParser.makeReference('2-10-200.mp4', 10, 20, baseUri));
expect(getRefAt(variants[2].video, 0)).toEqual(
ManifestParser.makeReference('1-0-300.mp4', 0, 10, baseUri));
expect(getRefAt(variants[2].video, 12)).toEqual(
ManifestParser.makeReference('2-10-300.mp4', 10, 20, baseUri));
});
it('create correct Uris when multiple representations', async () => {
const source = [
'<MPD>',
' <Period duration="PT60S">',
' <AdaptationSet mimeType="video/webm">',
' <BaseURL>http://example.com</BaseURL>',
' <SegmentTemplate timescale="1000"',
' initialization="segment-$RepresentationID$.dash"',
' media="segment-$RepresentationID$-$Time$.dash">',
' <SegmentTimeline>',
' <S t="0" d="6000" r="1176" />',
' <S d="4520" />',
' </SegmentTimeline>',
' </SegmentTemplate>',
' <Representation id="test1" bandwidth="100" />',
' <Representation id="test2" bandwidth="200" />',
' <Representation id="test3" bandwidth="300" />',
' </AdaptationSet>',
' </Period>',
'</MPD>',
].join('\n');
fakeNetEngine.setResponseText('dummy://foo', source);
const actual = await parser.start('dummy://foo', playerInterface);
expect(actual).toBeTruthy();
const variants = actual.variants;
expect(variants.length).toBe(3);
await variants[0].video.createSegmentIndex();
await variants[1].video.createSegmentIndex();
await variants[2].video.createSegmentIndex();
const firstSegment = (variant) => {
return Array.from(variant.video.segmentIndex)[0];
};
expect(firstSegment(variants[0]).getUris()).toEqual(
['http://example.com/segment-test1-0.dash']);
expect(firstSegment(variants[1]).getUris()).toEqual(
['http://example.com/segment-test2-0.dash']);
expect(firstSegment(variants[2]).getUris()).toEqual(
['http://example.com/segment-test3-0.dash']);
});
});
describe('rejects streams with', () => {
it('bad container type', async () => {
const source = [
'<MPD mediaPresentationDuration="PT75S">',
' <Period>',
' <BaseURL>http://example.com</BaseURL>',
' <AdaptationSet mimeType="video/cats">',
' <Representation bandwidth="500">',
' <SegmentTemplate startNumber="1"',
' index="index-$Bandwidth$.webm"',
' initialization="init-$Bandwidth$.webm" />',
' </Representation>',
' </AdaptationSet>',
' </Period>',
'</MPD>',
].join('\n');
const error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.MANIFEST,
shaka.util.Error.Code.DASH_UNSUPPORTED_CONTAINER);
await Dash.testFails(source, error);
});
it('no init data with webm', async () => {
const source = [
'<MPD>',
' <Period duration="PT30S">',
' <BaseURL>http://example.com</BaseURL>',
' <AdaptationSet mimeType="video/webm">',
' <Representation bandwidth="500">',
' <SegmentTemplate startNumber="1"',
' index="index-$Bandwidth$.webm" />',
' </Representation>',
' </AdaptationSet>',
' </Period>',
'</MPD>',
].join('\n');
const error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.MANIFEST,
shaka.util.Error.Code.DASH_WEBM_MISSING_INIT);
await Dash.testFails(source, error);
});
it('not enough segment info', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="1" />',
]);
const error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.MANIFEST,
shaka.util.Error.Code.DASH_NO_SEGMENT_INFO);
await Dash.testFails(source, error);
});
it('no media template', async () => {
const source = Dash.makeSimpleManifestText([
'<SegmentTemplate startNumber="1">',
' <SegmentTimeline>',
' <S d="10" />',
' </SegmentTimeline>',
'</SegmentTemplate>',
]);
const error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.MANIFEST,
shaka.util.Error.Code.DASH_NO_SEGMENT_INFO);
await Dash.testFails(source, error);
});
});
});