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hls_live_unit.js
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hls_live_unit.js
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/*! @license
* Shaka Player
* Copyright 2016 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
describe('HlsParser live', () => {
const ManifestParser = shaka.test.ManifestParser;
const master = [
'#EXTM3U\n',
'#EXT-X-STREAM-INF:BANDWIDTH=200,CODECS="avc1",',
'RESOLUTION=960x540,FRAME-RATE=60\n',
'video\n',
].join('');
/** @type {!shaka.test.FakeNetworkingEngine} */
let fakeNetEngine;
/** @type {!shaka.hls.HlsParser} */
let parser;
/** @type {shaka.extern.ManifestParser.PlayerInterface} */
let playerInterface;
/** @type {shaka.extern.ManifestConfiguration} */
let config;
/** @type {!Uint8Array} */
let initSegmentData;
/** @type {!Uint8Array} */
let segmentData;
/** @type {!Uint8Array} */
let selfInitializingSegmentData;
beforeEach(() => {
// TODO: use StreamGenerator?
initSegmentData = new Uint8Array([
0x00, 0x00, 0x00, 0x30, // size (48)
0x6D, 0x6F, 0x6F, 0x76, // type (moov)
0x00, 0x00, 0x00, 0x28, // trak size (40)
0x74, 0x72, 0x61, 0x6B, // type (trak)
0x00, 0x00, 0x00, 0x20, // mdia size (32)
0x6D, 0x64, 0x69, 0x61, // type (mdia)
0x00, 0x00, 0x00, 0x18, // mdhd size (24)
0x6D, 0x64, 0x68, 0x64, // type (mdhd)
0x00, 0x00, 0x00, 0x00, // version and flags
0x00, 0x00, 0x00, 0x00, // creation time (0)
0x00, 0x00, 0x00, 0x00, // modification time (0)
0x00, 0x00, 0x03, 0xe8, // timescale (1000)
]);
segmentData = new Uint8Array([
0x00, 0x00, 0x00, 0x24, // size (36)
0x6D, 0x6F, 0x6F, 0x66, // type (moof)
0x00, 0x00, 0x00, 0x1C, // traf size (28)
0x74, 0x72, 0x61, 0x66, // type (traf)
0x00, 0x00, 0x00, 0x14, // tfdt size (20)
0x74, 0x66, 0x64, 0x74, // type (tfdt)
0x01, 0x00, 0x00, 0x00, // version and flags
0x00, 0x00, 0x00, 0x00, // baseMediaDecodeTime first 4 bytes
0x00, 0x00, 0x07, 0xd0, // baseMediaDecodeTime last 4 bytes (2000)
]);
selfInitializingSegmentData =
shaka.util.Uint8ArrayUtils.concat(initSegmentData, segmentData);
fakeNetEngine = new shaka.test.FakeNetworkingEngine();
config = shaka.util.PlayerConfiguration.createDefault().manifest;
playerInterface = {
filter: () => Promise.resolve(),
makeTextStreamsForClosedCaptions: (manifest) => {},
networkingEngine: fakeNetEngine,
onError: fail,
onEvent: fail,
onTimelineRegionAdded: fail,
isLowLatencyMode: () => false,
isAutoLowLatencyMode: () => false,
enableLowLatencyMode: () => {},
updateDuration: () => {},
newDrmInfo: (stream) => {},
};
parser = new shaka.hls.HlsParser();
parser.configure(config);
});
afterEach(() => {
// HLS parser stop is synchronous.
parser.stop();
});
/**
* Gets a spy on the function that sets the update period.
* @return {!jasmine.Spy}
* @suppress {accessControls}
*/
function updateTickSpy() {
return spyOn(parser.updatePlaylistTimer_, 'tickAfter');
}
/**
* Trigger a manifest update.
* @suppress {accessControls}
*/
async function delayForUpdatePeriod() {
parser.updatePlaylistTimer_.tickNow();
await shaka.test.Util.shortDelay(); // Allow update to finish.
}
/**
* @param {string} master
* @param {string} media1
* @param {string} media2
*/
function configureNetEngineForInitialManifest(master, media1, media2) {
fakeNetEngine
.setResponseText('test:/master', master)
.setResponseText('test:/video', media1)
.setResponseText('test:/redirected/video', media1)
.setResponseText('test:/video2', media2)
.setResponseText('test:/audio', media1)
.setResponseValue('test:/init.mp4', initSegmentData)
.setResponseValue('test:/main.mp4', segmentData)
.setResponseValue('test:/main2.mp4', segmentData)
.setResponseValue('test:/main3.mp4', segmentData)
.setResponseValue('test:/main4.mp4', segmentData)
.setResponseValue('test:/partial.mp4', segmentData)
.setResponseValue('test:/partial2.mp4', segmentData)
.setResponseValue('test:/selfInit.mp4', selfInitializingSegmentData);
}
/**
* @param {string} master
* @param {string} initialMedia
* @param {Array=} initialReferences
* @return {!Promise.<shaka.extern.Manifest>}
*/
async function testInitialManifest(
master, initialMedia, initialReferences=null) {
configureNetEngineForInitialManifest(master, initialMedia, initialMedia);
const manifest = await parser.start('test:/master', playerInterface);
// Create the segment index for the variants, to finish the lazy-loading.
await Promise.all(manifest.variants.map(async (variant) => {
await variant.video.createSegmentIndex();
if (initialReferences) {
ManifestParser.verifySegmentIndex(variant.video, initialReferences);
}
if (variant.audio) {
await variant.audio.createSegmentIndex();
if (initialReferences) {
ManifestParser.verifySegmentIndex(variant.audio, initialReferences);
}
}
}));
return manifest;
}
/**
* @param {shaka.extern.Manifest} manifest
* @param {string} updatedMedia
* @param {Array=} updatedReferences
* @param {?number=} sequenceNumber
*/
async function testUpdate(manifest, updatedMedia, updatedReferences=null,
sequenceNumber=null) {
// Replace the entries with the updated values.
if (sequenceNumber == null) {
fakeNetEngine
.setResponseText('test:/video', updatedMedia)
.setResponseText('test:/redirected/video', updatedMedia)
.setResponseText('test:/video2', updatedMedia)
.setResponseText('test:/audio', updatedMedia);
} else {
fakeNetEngine
.setResponseText('test:/video?_HLS_msn=' + sequenceNumber,
updatedMedia)
.setResponseText('test:/redirected/video?_HLS_msn=' + sequenceNumber,
updatedMedia)
.setResponseText('test:/video2?_HLS_msn=' + sequenceNumber,
updatedMedia)
.setResponseText('test:/audio?_HLS_msn=' + sequenceNumber,
updatedMedia);
}
await delayForUpdatePeriod();
if (updatedReferences) {
for (const variant of manifest.variants) {
ManifestParser.verifySegmentIndex(variant.video, updatedReferences);
if (variant.audio) {
ManifestParser.verifySegmentIndex(variant.audio, updatedReferences);
}
}
}
}
describe('playlist type EVENT', () => {
const media = [
'#EXTM3U\n',
'#EXT-X-PLAYLIST-TYPE:EVENT\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXTINF:2,\n',
'main.mp4\n',
].join('');
const mediaWithAdditionalSegment = [
'#EXTM3U\n',
'#EXT-X-PLAYLIST-TYPE:EVENT\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXTINF:2,\n',
'main.mp4\n',
'#EXTINF:2,\n',
'main2.mp4\n',
].join('');
it('treats already ended presentation like VOD', async () => {
const manifest = await testInitialManifest(
master, media + '#EXT-X-ENDLIST');
expect(manifest.presentationTimeline.isLive()).toBe(false);
expect(manifest.presentationTimeline.isInProgress()).toBe(false);
});
describe('update', () => {
it('adds new segments when they appear', async () => {
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const manifest = await testInitialManifest(master, media, [ref1]);
await testUpdate(manifest, mediaWithAdditionalSegment, [ref1, ref2]);
});
it('updates all variants', async () => {
const secondVariant = [
'#EXT-X-STREAM-INF:BANDWIDTH=300,CODECS="avc1",',
'RESOLUTION=1200x940,FRAME-RATE=60\n',
'video2',
].join('');
const masterWithTwoVariants = master + secondVariant;
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const manifest = await testInitialManifest(
masterWithTwoVariants, media, [ref1]);
await testUpdate(manifest, mediaWithAdditionalSegment, [ref1, ref2]);
});
it('updates all streams', async () => {
const masterlist = [
'#EXTM3U\n',
'#EXT-X-STREAM-INF:BANDWIDTH=200,CODECS="avc1",AUDIO="aud1",',
'RESOLUTION=960x540,FRAME-RATE=60\n',
'video\n',
].join('');
const audio = [
'#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="aud1",LANGUAGE="eng",',
'URI="audio"\n',
].join('');
const masterWithAudio = masterlist + audio;
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const manifest = await testInitialManifest(
masterWithAudio, media, [ref1]);
await testUpdate(manifest, mediaWithAdditionalSegment, [ref1, ref2]);
});
it('handles multiple updates', async () => {
const newSegment1 = [
'#EXTINF:2,\n',
'main2.mp4\n',
].join('');
const newSegment2 = [
'#EXTINF:2,\n',
'main3.mp4\n',
].join('');
const updatedMedia1 = media + newSegment1;
const updatedMedia2 = updatedMedia1 + newSegment2;
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const ref3 = makeReference(
'test:/main3.mp4', 4, 6, /* syncTime= */ null);
const manifest = await testInitialManifest(master, media, [ref1]);
await testUpdate(manifest, updatedMedia1, [ref1, ref2]);
await testUpdate(manifest, updatedMedia2, [ref1, ref2, ref3]);
});
it('converts presentation to VOD when it is finished', async () => {
const manifest = await testInitialManifest(master, media);
expect(manifest.presentationTimeline.isLive()).toBe(true);
await testUpdate(
manifest, mediaWithAdditionalSegment + '#EXT-X-ENDLIST\n');
expect(manifest.presentationTimeline.isLive()).toBe(false);
});
it('starts presentation as VOD when ENDLIST is present', async () => {
const manifest = await testInitialManifest(
master, media + '#EXT-X-ENDLIST');
expect(manifest.presentationTimeline.isLive()).toBe(false);
});
it('does not throw when interrupted by stop', async () => {
const manifest = await testInitialManifest(master, media);
expect(manifest.presentationTimeline.isLive()).toBe(true);
// Block the next request so that update() is still happening when we
// call stop().
/** @type {!shaka.util.PublicPromise} */
const delay = fakeNetEngine.delayNextRequest();
// Trigger an update.
await delayForUpdatePeriod();
// Stop the parser mid-update, but don't wait for stop to complete.
const stopPromise = parser.stop();
// Unblock the request.
delay.resolve();
// Allow update to finish.
await shaka.test.Util.shortDelay();
// Wait for stop to complete.
await stopPromise;
});
it('calls notifySegments on each update', async () => {
const manifest = await testInitialManifest(master, media);
const notifySegmentsSpy = spyOn(
manifest.presentationTimeline, 'notifySegments').and.callThrough();
// Trigger an update.
await delayForUpdatePeriod();
expect(notifySegmentsSpy).toHaveBeenCalled();
notifySegmentsSpy.calls.reset();
// Trigger another update.
await delayForUpdatePeriod();
expect(notifySegmentsSpy).toHaveBeenCalled();
});
it('fatal error on manifest update request failure when ' +
'raiseFatalErrorOnManifestUpdateRequestFailure is true', async () => {
const manifestConfig =
shaka.util.PlayerConfiguration.createDefault().manifest;
manifestConfig.raiseFatalErrorOnManifestUpdateRequestFailure = true;
parser.configure(manifestConfig);
const updateTick = updateTickSpy();
await testInitialManifest(master, media);
expect(updateTick).toHaveBeenCalledTimes(1);
/** @type {!jasmine.Spy} */
const onError = jasmine.createSpy('onError');
playerInterface.onError = shaka.test.Util.spyFunc(onError);
const error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.NETWORK,
shaka.util.Error.Code.BAD_HTTP_STATUS);
const operation = shaka.util.AbortableOperation.failed(error);
fakeNetEngine.request.and.returnValue(operation);
await delayForUpdatePeriod();
expect(onError).toHaveBeenCalledWith(error);
expect(updateTick).toHaveBeenCalledTimes(1);
});
it('converts to VOD only after all playlists end', async () => {
const master = [
'#EXTM3U\n',
'#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="aud1",LANGUAGE="eng",',
'URI="audio"\n',
'#EXT-X-STREAM-INF:BANDWIDTH=200,CODECS="avc1",AUDIO="aud1",',
'RESOLUTION=960x540,FRAME-RATE=60\n',
'video\n',
].join('');
const mediaWithEndList = media + '#EXT-X-ENDLIST';
const manifest = await testInitialManifest(master, media);
expect(manifest.presentationTimeline.isLive()).toBe(true);
// Update video only.
fakeNetEngine.setResponseText('test:/video', mediaWithEndList);
await delayForUpdatePeriod();
// Audio hasn't "ended" yet, so we're still live.
expect(manifest.presentationTimeline.isLive()).toBe(true);
// Update audio.
fakeNetEngine.setResponseText('test:/audio', mediaWithEndList);
await delayForUpdatePeriod();
// Now both have "ended", so we're no longer live.
expect(manifest.presentationTimeline.isLive()).toBe(false);
});
it('stops updating after all playlists end', async () => {
const manifest = await testInitialManifest(master, media);
expect(manifest.presentationTimeline.isLive()).toBe(true);
fakeNetEngine.request.calls.reset();
await testUpdate(
manifest, mediaWithAdditionalSegment + '#EXT-X-ENDLIST\n');
// We saw one request for the video playlist, which signalled "ENDLIST".
const type =
shaka.net.NetworkingEngine.AdvancedRequestType.MEDIA_PLAYLIST;
fakeNetEngine.expectRequest(
'test:/video',
shaka.net.NetworkingEngine.RequestType.MANIFEST,
{type});
expect(manifest.presentationTimeline.isLive()).toBe(false);
fakeNetEngine.request.calls.reset();
await delayForUpdatePeriod();
// No new updates were requested.
expect(fakeNetEngine.request).not.toHaveBeenCalled();
});
}); // describe('update')
}); // describe('playlist type EVENT')
describe('playlist type LIVE', () => {
const media = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXTINF:2,\n',
'main.mp4\n',
].join('');
const mediaWithoutSequenceNumber = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXTINF:2,\n',
'main.mp4\n',
].join('');
const mediaWithAdditionalSegment = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXTINF:2,\n',
'main.mp4\n',
'#EXTINF:2,\n',
'main2.mp4\n',
].join('');
const mediaWithRemovedSegment = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:1\n',
'#EXTINF:2,\n',
'main2.mp4\n',
].join('');
const mediaWithAdditionalSegment2 = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXTINF:2,\n',
'main3.mp4\n',
'#EXTINF:2,\n',
'main4.mp4\n',
].join('');
const mediaWithRemovedSegment2 = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:1\n',
'#EXTINF:2,\n',
'main4.mp4\n',
].join('');
let mediaWithManySegments = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
].join('');
for (let i = 0; i < 1000; i++) {
mediaWithManySegments += '#EXTINF:2,\n';
mediaWithManySegments += 'main.mp4\n';
}
const mediaWithDiscontinuity = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXT-X-DISCONTINUITY-SEQUENCE:30\n',
'#EXTINF:2,\n',
'main.mp4\n',
'#EXT-X-DISCONTINUITY\n',
'#EXTINF:2,\n',
'main2.mp4\n',
].join('');
const mediaWithUpdatedDiscontinuitySegment = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:1\n',
'#EXT-X-DISCONTINUITY-SEQUENCE:31\n',
'#EXTINF:2,\n',
'main2.mp4\n',
].join('');
it('starts presentation as VOD when ENDLIST is present', async () => {
const manifest = await testInitialManifest(
master, media + '#EXT-X-ENDLIST');
expect(manifest.presentationTimeline.isLive()).toBe(false);
});
it('does not fail on a missing sequence number', async () => {
await testInitialManifest(master, mediaWithoutSequenceNumber);
});
it('sets presentation delay as configured', async () => {
config.defaultPresentationDelay = 10;
parser.configure(config);
const manifest = await testInitialManifest(master, media);
expect(manifest.presentationTimeline.getDelay()).toBe(
config.defaultPresentationDelay);
});
it('sets 3 times target duration as presentation delay if not configured',
async () => {
const manifest = await testInitialManifest(master, media);
expect(manifest.presentationTimeline.getDelay()).toBe(15);
});
it('sets presentation delay for low latency mode', async () => {
const mediaWithLowLatency = [
'#EXTM3U\n',
'#EXT-X-SERVER-CONTROL:CAN-BLOCK-RELOAD=YES,PART-HOLD-BACK=1.8\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-PART-INF:PART-TARGET=0.5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXTINF:2,\n',
'main.mp4\n',
].join('');
playerInterface.isLowLatencyMode = () => true;
const manifest = await testInitialManifest(master, mediaWithLowLatency);
// Presentation delay should be the value of 'PART-HOLD-BACK' if not
// configured.
expect(manifest.presentationTimeline.getDelay()).toBe(1.8);
});
describe('availabilityWindowOverride', () => {
async function testWindowOverride(expectedWindow) {
const manifest = await testInitialManifest(
master, mediaWithManySegments);
expect(manifest).toBeTruthy();
const timeline = manifest.presentationTimeline;
expect(timeline).toBeTruthy();
const start = timeline.getSegmentAvailabilityStart();
const end = timeline.getSegmentAvailabilityEnd();
expect(end - start).toBeCloseTo(expectedWindow, 1);
}
it('does not affect seek range if unset', async () => {
// 15 seconds is three segment durations.
await testWindowOverride(15);
});
it('overrides default seek range if set', async () => {
config.availabilityWindowOverride = 240;
parser.configure(config);
await testWindowOverride(240);
});
});
it('sets discontinuity sequence numbers', async () => {
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ null,
/* timestampOffset= */ 0);
ref1.discontinuitySequence = 30;
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ null,
/* timestampOffset= */ 0);
ref2.discontinuitySequence = 31;
const manifest = await testInitialManifest(
master, mediaWithDiscontinuity, [ref1, ref2]);
await testUpdate(
manifest, mediaWithUpdatedDiscontinuitySegment, [ref2]);
});
// Test for https://github.com/shaka-project/shaka-player/issues/4223
it('parses streams with partial and preload hinted segments', async () => {
playerInterface.isLowLatencyMode = () => true;
const mediaWithPartialSegments = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-PART-INF:PART-TARGET=1.5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
// ref includes partialRef, partialRef2
// partialRef
'#EXT-X-PART:DURATION=2,URI="partial.mp4",BYTERANGE=200@0\n',
// partialRef2
'#EXT-X-PART:DURATION=2,URI="partial2.mp4",BYTERANGE=230@200\n',
'#EXTINF:4,\n',
'main.mp4\n',
// ref2 includes partialRef3, preloadRef
// partialRef3
'#EXT-X-PART:DURATION=2,URI="partial.mp4",BYTERANGE=210@0\n',
// preloadRef
'#EXT-X-PRELOAD-HINT:TYPE=PART,URI="partial.mp4",BYTERANGE-START=210,',
'BYTERANGE-LENGTH=210\n',
].join('');
const partialRef = makeReference(
'test:/partial.mp4', 0, 2, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ 199);
const partialRef2 = makeReference(
'test:/partial2.mp4', 2, 4, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 200, /* endByte= */ 429);
const ref = makeReference(
'test:/main.mp4', 0, 4, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ 429,
/* timestampOffset= */ 0, [partialRef, partialRef2]);
const partialRef3 = makeReference(
'test:/partial.mp4', 4, 6, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ 209);
const preloadRef = makeReference(
'test:/partial.mp4', 6, 7.5, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 210, /* endByte= */ 419);
preloadRef.markAsPreload();
// ref2 is not fully published yet, so it doesn't have a segment uri.
const ref2 = makeReference(
'', 4, 7.5, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ 419,
/* timestampOffset= */ 0, [partialRef3, preloadRef]);
await testInitialManifest(master, mediaWithPartialSegments, [ref, ref2]);
});
// Test for https://github.com/shaka-project/shaka-player/issues/4223
it('ignores preload hinted segments without target duration', async () => {
playerInterface.isLowLatencyMode = () => true;
// Missing PART-TARGET, so preload hints are skipped.
const mediaWithPartialSegments = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXTINF:4,\n',
// ref1
'main.mp4\n',
// ref2 includes partialRef, but not preloadRef
// partialRef
'#EXT-X-PART:DURATION=2,URI="partial.mp4",BYTERANGE=210@0\n',
// preloadRef
'#EXT-X-PRELOAD-HINT:TYPE=PART,URI="partial.mp4",BYTERANGE-START=210\n',
].join('');
const ref = makeReference(
'test:/main.mp4', 0, 4, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ null,
/* timestampOffset= */ 0, []);
const partialRef = makeReference(
'test:/partial.mp4', 4, 6, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ 209);
// ref2 is not fully published yet, so it doesn't have a segment uri.
const ref2 = makeReference(
'', 4, 6, /* syncTime= */ null,
/* baseUri= */ '', /* startByte= */ 0, /* endByte= */ 209,
/* timestampOffset= */ 0, [partialRef]);
await testInitialManifest(master, mediaWithPartialSegments, [ref, ref2]);
});
// Test for https://github.com/shaka-project/shaka-player/issues/4185
it('does not fail on preload hints with LL mode off', async () => {
// LL mode must be off for this test!
playerInterface.isLowLatencyMode = () => false;
const mediaWithPartialSegments = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-PART-INF:PART-TARGET=1.5\n',
'#EXTINF:4,\n',
'main.mp4\n',
'#EXT-X-PART:DURATION=2,URI="partial.mp4",BYTERANGE=210@0\n',
'#EXT-X-PRELOAD-HINT:TYPE=PART,URI="partial.mp4",BYTERANGE-START=210\n',
].join('');
// If this throws, the test fails. Otherwise, it passes.
await testInitialManifest(master, mediaWithPartialSegments);
});
describe('update', () => {
it('adds new segments when they appear', async () => {
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const manifest = await testInitialManifest(master, media, [ref1]);
await testUpdate(manifest, mediaWithAdditionalSegment, [ref1, ref2]);
});
it('evicts removed segments', async () => {
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const manifest = await testInitialManifest(
master, mediaWithAdditionalSegment, [ref1, ref2]);
await testUpdate(manifest, mediaWithRemovedSegment, [ref2]);
});
it('has correct references if switching after update', async () => {
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const ref4 = makeReference(
'test:/main4.mp4', 2, 4, /* syncTime= */ null);
const secondVariant = [
'#EXT-X-STREAM-INF:BANDWIDTH=300,CODECS="avc1",',
'RESOLUTION=1200x940,FRAME-RATE=60\n',
'video2',
].join('');
const masterWithTwoVariants = master + secondVariant;
configureNetEngineForInitialManifest(masterWithTwoVariants,
mediaWithAdditionalSegment, mediaWithAdditionalSegment2);
const manifest = await parser.start('test:/master', playerInterface);
await manifest.variants[0].video.createSegmentIndex();
ManifestParser.verifySegmentIndex(
manifest.variants[0].video, [ref1, ref2]);
expect(manifest.variants[1].video.segmentIndex).toBeNull();
// Update.
fakeNetEngine
.setResponseText('test:/video', mediaWithRemovedSegment)
.setResponseText('test:/video2', mediaWithRemovedSegment2);
await delayForUpdatePeriod();
// Switch.
await manifest.variants[0].video.closeSegmentIndex();
await manifest.variants[1].video.createSegmentIndex();
// Check for variants to be as expected.
expect(manifest.variants[0].video.segmentIndex).toBeNull();
ManifestParser.verifySegmentIndex(
manifest.variants[1].video, [ref4]);
});
it('handles switching during update', async () => {
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const ref4 = makeReference(
'test:/main4.mp4', 2, 4, /* syncTime= */ null);
const secondVariant = [
'#EXT-X-STREAM-INF:BANDWIDTH=300,CODECS="avc1",',
'RESOLUTION=1200x940,FRAME-RATE=60\n',
'video2',
].join('');
const masterWithTwoVariants = master + secondVariant;
configureNetEngineForInitialManifest(masterWithTwoVariants,
mediaWithAdditionalSegment, mediaWithAdditionalSegment2);
const manifest = await parser.start('test:/master', playerInterface);
await manifest.variants[0].video.createSegmentIndex();
ManifestParser.verifySegmentIndex(
manifest.variants[0].video, [ref1, ref2]);
expect(manifest.variants[1].video.segmentIndex).toBe(null);
// Update.
fakeNetEngine
.setResponseText('test:/video', mediaWithRemovedSegment)
.setResponseText('test:/video2', mediaWithRemovedSegment2);
const updatePromise = parser.update();
// Verify that the update is not yet complete.
expect(manifest.variants[0].video.segmentIndex).not.toBe(null);
ManifestParser.verifySegmentIndex(
manifest.variants[0].video, [ref1, ref2]);
// Mid-update, switch.
await manifest.variants[0].video.closeSegmentIndex();
await manifest.variants[1].video.createSegmentIndex();
// Finish the update.
await updatePromise;
// Check for variants to be as expected.
expect(manifest.variants[0].video.segmentIndex).toBe(null);
ManifestParser.verifySegmentIndex(
manifest.variants[1].video, [ref4]);
});
it('handles updates with redirects', async () => {
const oldRef1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const newRef1 = makeReference(
'test:/redirected/main.mp4', 0, 2, /* syncTime= */ null);
const newRef2 = makeReference(
'test:/redirected/main2.mp4', 2, 4, /* syncTime= */ null);
let playlistFetchCount = 0;
fakeNetEngine.setResponseFilter((type, response) => {
// Simulate a redirect on the updated playlist by changing the
// response URI on the second playlist fetch.
if (response.uri == 'test:/video') {
playlistFetchCount++;
if (playlistFetchCount == 2) {
response.uri = 'test:/redirected/video';
}
}
});
const manifest = await testInitialManifest(master, media, [oldRef1]);
await testUpdate(
manifest, mediaWithAdditionalSegment, [newRef1, newRef2]);
});
it('parses start time from mp4 segments', async () => {
const ref = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
// In live content, we do not set timestampOffset.
ref.timestampOffset = 0;
await testInitialManifest(master, media, [ref]);
});
it('gets start time on update without segment request', async () => {
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const manifest = await testInitialManifest(
master, mediaWithAdditionalSegment, [ref1, ref2]);
fakeNetEngine.request.calls.reset();
await testUpdate(manifest, mediaWithRemovedSegment, [ref2]);
// Only one request was made, and it was for the playlist.
// No segment requests were needed to get the start time.
expect(fakeNetEngine.request).toHaveBeenCalledTimes(1);
const type =
shaka.net.NetworkingEngine.AdvancedRequestType.MEDIA_PLAYLIST;
fakeNetEngine.expectRequest(
'test:/video',
shaka.net.NetworkingEngine.RequestType.MANIFEST,
{type});
});
it('request playlist delta updates to skip segments', async () => {
const mediaWithDeltaUpdates = [
'#EXTM3U\n',
'#EXT-X-PLAYLIST-TYPE:LIVE\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-SERVER-CONTROL:CAN-SKIP-UNTIL=60.0\n',
'#EXTINF:2,\n',
'main.mp4\n',
'#EXTINF:2,\n',
'main2.mp4\n',
].join('');
const mediaWithSkippedSegments = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:1\n',
'#EXT-X-SERVER-CONTROL:CAN-SKIP-UNTIL=60.0\n',
'#EXT-X-SKIP:SKIPPED-SEGMENTS=1\n',
'#EXTINF:2,\n',
'main2.mp4\n',
'#EXTINF:2,\n',
'main3.mp4\n',
].join('');
fakeNetEngine.setResponseText(
'test:/video?_HLS_skip=YES&_HLS_msn=2', mediaWithSkippedSegments);
playerInterface.isLowLatencyMode = () => true;
await testInitialManifest(master, mediaWithDeltaUpdates);
fakeNetEngine.request.calls.reset();
await delayForUpdatePeriod();
fakeNetEngine.expectRequest(
'test:/video?_HLS_skip=YES&_HLS_msn=2',
shaka.net.NetworkingEngine.RequestType.MANIFEST,
{type:
shaka.net.NetworkingEngine.AdvancedRequestType.MEDIA_PLAYLIST});
});
it('skips older segments', async () => {
const mediaWithSkippedSegments = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-MEDIA-SEQUENCE:0\n',
'#EXT-X-SKIP:SKIPPED-SEGMENTS=1\n',
'#EXTINF:2,\n',
'main2.mp4\n',
'#EXTINF:2,\n',
'main3.mp4\n',
].join('');
playerInterface.isLowLatencyMode = () => true;
const ref1 = makeReference(
'test:/main.mp4', 0, 2, /* syncTime= */ null);
const ref2 = makeReference(
'test:/main2.mp4', 2, 4, /* syncTime= */ null);
const ref3 = makeReference(
'test:/main3.mp4', 4, 6, /* syncTime= */ null);
const manifest = await testInitialManifest(
master, mediaWithAdditionalSegment, [ref1, ref2]);
// With 'SKIPPED-SEGMENTS', ref1 is skipped from the playlist,
// and ref1 should be in the SegmentReferences list.
// ref3 should be appended to the SegmentReferences list.
await testUpdate(
manifest, mediaWithSkippedSegments, [ref1, ref2, ref3], 2);
});
it('skips older segments with discontinuity', async () => {
const mediaWithDiscontinuity2 = [
'#EXTM3U\n',
'#EXT-X-PLAYLIST-TYPE:LIVE\n',
'#EXT-X-TARGETDURATION:5\n',
'#EXT-X-MAP:URI="init.mp4",BYTERANGE="616@0"\n',
'#EXT-X-DISCONTINUITY-SEQUENCE:30\n',
'#EXTINF:2,\n',
'main.mp4\n',
'#EXT-X-DISCONTINUITY\n',
'#EXTINF:2,\n',
'main2.mp4\n',
'#EXTINF:2,\n',
'main3.mp4\n',
].join('');
const mediaWithSkippedSegments2 = [
'#EXTM3U\n',
'#EXT-X-TARGETDURATION:5\n',