mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-26 17:46:26 +03:00
Joey Parrish
e8ac57f36c
Period-flattening will concatenate Stream objects, so this information should be available per-Stream instead of at the Variant level. Issue #1339 Change-Id: I96195fea48cab1e4a349b2ab0b16064a443e928a
2979 lines
103 KiB
JavaScript
2979 lines
103 KiB
JavaScript
/** @license
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* Copyright 2016 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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describe('StreamingEngine', () => {
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const Util = shaka.test.Util;
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const ContentType = shaka.util.ManifestParserUtils.ContentType;
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const Uint8ArrayUtils = shaka.util.Uint8ArrayUtils;
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// Dummy byte ranges and sizes for initialization and media segments.
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// Create empty object first and initialize the fields through
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// [] to allow field names to be expressions.
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/**
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* @type {!Object.<shaka.util.ManifestParserUtils.ContentType,
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* !Array.<number>>}
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*/
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const initSegmentRanges = {};
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initSegmentRanges[ContentType.AUDIO] = [100, 1000];
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initSegmentRanges[ContentType.VIDEO] = [200, 2000];
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/** @type {!Object.<shaka.util.ManifestParserUtils.ContentType, number>} */
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const segmentSizes = {};
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segmentSizes[ContentType.AUDIO] = 1000;
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segmentSizes[ContentType.VIDEO] = 10000;
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segmentSizes[ContentType.TEXT] = 500;
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/** @type {!Object.<string, shaka.test.FakeMediaSourceEngine.SegmentData>} */
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let segmentData;
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/** @type {number} */
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let presentationTimeInSeconds;
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/** @type {boolean} */
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let playing;
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/** @type {!shaka.test.FakeMediaSourceEngine} */
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let mediaSourceEngine;
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let netEngine;
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let timeline;
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let audioStream;
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let videoStream;
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let variant;
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let textStream;
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let alternateVariant;
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let alternateVideoStream;
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/** @type {shaka.extern.Manifest} */
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let manifest;
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/** @type {!jasmine.Spy} */
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let onError;
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/** @type {!jasmine.Spy} */
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let onEvent;
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/** @type {!jasmine.Spy} */
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let onManifestUpdate;
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/** @type {!jasmine.Spy} */
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let onSegmentAppended;
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/** @type {!jasmine.Spy} */
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let getBandwidthEstimate;
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/** @type {!shaka.media.StreamingEngine} */
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let streamingEngine;
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/**
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* Runs the fake event loop.
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* @param {function()=} callback An optional callback that is executed
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* each time the clock ticks.
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*/
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async function runTest(callback) {
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async function onTick(currentTime) {
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if (callback) {
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await callback();
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}
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if (playing) {
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presentationTimeInSeconds++;
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}
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}
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// No test should require more than 60 seconds of simulated time.
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await Util.fakeEventLoop(60, onTick);
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}
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beforeAll(() => {
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jasmine.clock().install();
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jasmine.clock().mockDate();
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});
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/** @param {boolean=} trickMode */
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function setupVod(trickMode) {
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// For VOD, we fake a presentation that has 2 Periods of equal duration
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// (20 seconds), where each Period has 1 Variant and 1 text stream.
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//
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// There are 4 initialization segments: 1 audio and 1 video for the
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// first Period, and 1 audio and 1 video for the second Period.
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//
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// There are 12 media segments: 2 audio, 2 video, and 2 text for the
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// first Period, and 2 audio, 2 video, and 2 text for the second Period.
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// All media segments are (by default) 10 seconds long.
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// Create SegmentData map for FakeMediaSourceEngine.
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const initSegmentSizeAudio = initSegmentRanges[ContentType.AUDIO][1] -
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initSegmentRanges[ContentType.AUDIO][0] + 1;
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const initSegmentSizeVideo = initSegmentRanges[ContentType.VIDEO][1] -
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initSegmentRanges[ContentType.VIDEO][0] + 1;
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const makeBuffer = (size) => new ArrayBuffer(size);
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segmentData = {
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audio: {
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initSegments: [
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makeBuffer(initSegmentSizeAudio), makeBuffer(initSegmentSizeAudio),
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],
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segments: [
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makeBuffer(segmentSizes[ContentType.AUDIO]),
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makeBuffer(segmentSizes[ContentType.AUDIO]),
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makeBuffer(segmentSizes[ContentType.AUDIO]),
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makeBuffer(segmentSizes[ContentType.AUDIO]),
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],
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segmentStartTimes: [0, 10, 20, 30],
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segmentDuration: 10,
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},
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video: {
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initSegments: [
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makeBuffer(initSegmentSizeVideo), makeBuffer(initSegmentSizeVideo),
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],
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segments: [
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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],
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segmentStartTimes: [0, 10, 20, 30],
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segmentDuration: 10,
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},
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text: {
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initSegments: [],
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segments: [
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makeBuffer(segmentSizes[ContentType.TEXT]),
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makeBuffer(segmentSizes[ContentType.TEXT]),
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makeBuffer(segmentSizes[ContentType.TEXT]),
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makeBuffer(segmentSizes[ContentType.TEXT]),
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],
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segmentStartTimes: [0, 10, 20, 30],
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segmentDuration: 10,
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},
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};
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if (trickMode) {
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segmentData.trickvideo = {
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initSegments: [
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makeBuffer(initSegmentSizeVideo), makeBuffer(initSegmentSizeVideo),
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],
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segments: [
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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makeBuffer(segmentSizes[ContentType.VIDEO]),
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],
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segmentStartTimes: [0, 10, 20, 30],
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segmentDuration: 10,
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};
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}
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presentationTimeInSeconds = 0;
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playing = false;
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setupNetworkingEngine(
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/* segmentsInFirstPeriod= */ 2,
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/* segmentsInSecondPeriod= */ 2);
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timeline = shaka.test.StreamingEngineUtil.createFakePresentationTimeline(
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/* segmentAvailabilityStart= */ 0,
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/* segmentAvailabilityEnd= */ 40,
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/* presentationDuration= */ 40,
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/* maxSegmentDuration= */ 10,
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/* isLive= */ false);
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setupManifest(
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/* firstPeriodStartTime= */ 0,
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/* secondPeriodStartTime= */ 20,
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/* presentationDuration= */ 40);
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}
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function setupLive() {
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// For live, we fake a presentation that has 2 Periods of different
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// durations (120 seconds and 20 seconds respectively), where each Period
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// has 1 Variant and 1 text stream.
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//
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// There are 4 initialization segments: 1 audio and 1 video for the
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// first Period, and 1 audio and 1 video for the second Period.
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//
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// There are 14 media segments: 12 audio, 12 video, and 12 text for the
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// first Period, and 2 audio, 2 video, and 2 text for the second Period.
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// All media segments are (by default) 10 seconds long.
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//
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// The segment availability window starts at t=100 (segment 11) and extends
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// to t=120 (segment 13).
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// Create SegmentData map for FakeMediaSourceEngine.
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const initSegmentSizeAudio = initSegmentRanges[ContentType.AUDIO][1] -
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initSegmentRanges[ContentType.AUDIO][0] + 1;
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const initSegmentSizeVideo = initSegmentRanges[ContentType.VIDEO][1] -
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initSegmentRanges[ContentType.VIDEO][0] + 1;
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const makeBuffer = (size) => new ArrayBuffer(size);
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segmentData = {
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audio: {
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initSegments:
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[makeBuffer(initSegmentSizeAudio),
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makeBuffer(initSegmentSizeAudio)],
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segments: [],
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segmentStartTimes: [],
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segmentDuration: 10,
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},
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video: {
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initSegments:
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[makeBuffer(initSegmentSizeVideo),
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makeBuffer(initSegmentSizeVideo)],
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segments: [],
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segmentStartTimes: [],
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segmentDuration: 10,
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},
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text: {
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initSegments: [],
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segments: [],
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segmentStartTimes: [],
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segmentDuration: 10,
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},
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};
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const segmentsInFirstPeriod = 12;
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for (const i of shaka.util.Iterables.range(segmentsInFirstPeriod)) {
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segmentData[ContentType.AUDIO].segments.push(
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makeBuffer(segmentSizes[ContentType.AUDIO]));
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segmentData[ContentType.VIDEO].segments.push(
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makeBuffer(segmentSizes[ContentType.VIDEO]));
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segmentData[ContentType.TEXT].segments.push(
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makeBuffer(segmentSizes[ContentType.TEXT]));
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segmentData[ContentType.AUDIO].segmentStartTimes.push(i * 10);
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segmentData[ContentType.VIDEO].segmentStartTimes.push(i * 10);
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segmentData[ContentType.TEXT].segmentStartTimes.push(i * 10);
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}
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const segmentsInSecondPeriod = 2;
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for (const i of shaka.util.Iterables.range(segmentsInSecondPeriod)) {
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segmentData[ContentType.AUDIO].segments.push(
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makeBuffer(segmentSizes[ContentType.AUDIO]));
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segmentData[ContentType.VIDEO].segments.push(
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makeBuffer(segmentSizes[ContentType.VIDEO]));
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segmentData[ContentType.TEXT].segments.push(
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makeBuffer(segmentSizes[ContentType.TEXT]));
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segmentData[ContentType.AUDIO].segmentStartTimes.push(
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(segmentsInFirstPeriod + i) * 10);
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segmentData[ContentType.VIDEO].segmentStartTimes.push(
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(segmentsInFirstPeriod + i) * 10);
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segmentData[ContentType.TEXT].segmentStartTimes.push(
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(segmentsInFirstPeriod + i) * 10);
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}
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presentationTimeInSeconds = 110;
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playing = false;
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setupNetworkingEngine(
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/* segmentsInFirstPeriod= */ 12,
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/* segmentsInSecondPeriod= */ 2);
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// NOTE: Many tests here start playback at 100, so the availability start is
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// 90. This allows the async index creation processes to complete before
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// the window moves, which gives us the startup conditions the tests expect.
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// Keep in mind that the fake event loop in the tests ticks in whole
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// seconds, so real async processes may take a surprising amount of fake
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// time to complete. To test actual boundary conditions, you can change
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// timeline.segmentAvailabilityStart in the test setup.
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timeline = shaka.test.StreamingEngineUtil.createFakePresentationTimeline(
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/* segmentAvailabilityStart= */ 90,
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/* segmentAvailabilityEnd= */ 140,
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/* presentationDuration= */ 140,
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/* maxSegmentDuration= */ 10,
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/* isLive= */ true);
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setupManifest(
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/* firstPeriodStartTime= */ 0,
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/* secondPeriodStartTime= */ 120,
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/* presentationDuration= */ 140);
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}
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function setupNetworkingEngine(
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segmentsInFirstPeriod, segmentsInSecondPeriod) {
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// Create the fake NetworkingEngine. Note: the StreamingEngine should never
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// request a segment that does not exist.
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netEngine = shaka.test.StreamingEngineUtil.createFakeNetworkingEngine(
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// Init segment generator:
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(type, periodIndex) => {
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expect((periodIndex == 0) || (periodIndex == 1));
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return segmentData[type].initSegments[periodIndex];
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},
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// Media segment generator:
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(type, periodIndex, position) => {
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expect(position).toBeGreaterThan(-1);
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expect((periodIndex == 0 && position <= segmentsInFirstPeriod) ||
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(periodIndex == 1 && position <= segmentsInSecondPeriod));
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return segmentData[type].segments[position];
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});
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}
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function setupManifest(
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firstPeriodStartTime, secondPeriodStartTime, presentationDuration) {
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const segmentDurations = {
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audio: segmentData[ContentType.AUDIO].segmentDuration,
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video: segmentData[ContentType.VIDEO].segmentDuration,
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text: segmentData[ContentType.TEXT].segmentDuration,
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};
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if (segmentData['trickvideo']) {
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segmentDurations['trickvideo'] =
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segmentData['trickvideo'].segmentDuration;
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}
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manifest = shaka.test.StreamingEngineUtil.createManifest(
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/** @type {!shaka.media.PresentationTimeline} */(timeline),
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[firstPeriodStartTime, secondPeriodStartTime],
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presentationDuration, segmentDurations, initSegmentRanges);
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audioStream = manifest.variants[0].audio;
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videoStream = manifest.variants[0].video;
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variant = manifest.variants[0];
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textStream = manifest.textStreams[0];
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// This Stream is only used to verify that StreamingEngine can setup
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// Streams correctly.
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alternateVideoStream =
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shaka.test.StreamingEngineUtil.createMockVideoStream(8);
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alternateVariant = {
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audio: audioStream,
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video: /** @type {shaka.extern.Stream} */ (alternateVideoStream),
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id: 0,
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language: 'und',
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primary: false,
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bandwidth: 0,
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allowedByApplication: true,
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allowedByKeySystem: true,
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};
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manifest.variants.push(alternateVariant);
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}
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/**
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* Creates the StreamingEngine.
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**
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* @param {shaka.extern.StreamingConfiguration=} config Optional
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* configuration object which overrides the default one.
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*/
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function createStreamingEngine(config) {
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onError = jasmine.createSpy('onError');
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onError.and.callFake(fail);
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onEvent = jasmine.createSpy('onEvent');
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onManifestUpdate = jasmine.createSpy('onManifestUpdate');
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onSegmentAppended = jasmine.createSpy('onSegmentAppended');
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getBandwidthEstimate = jasmine.createSpy('getBandwidthEstimate');
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getBandwidthEstimate.and.returnValue(1e3);
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if (!config) {
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config = shaka.util.PlayerConfiguration.createDefault().streaming;
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config.rebufferingGoal = 2;
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config.bufferingGoal = 5;
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config.bufferBehind = Infinity;
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}
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goog.asserts.assert(
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presentationTimeInSeconds != undefined,
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'All tests should have defined an initial presentation time by now!');
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const playerInterface = {
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getPresentationTime: () => presentationTimeInSeconds,
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getBandwidthEstimate: Util.spyFunc(getBandwidthEstimate),
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mediaSourceEngine: mediaSourceEngine,
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netEngine: /** @type {!shaka.net.NetworkingEngine} */(netEngine),
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onError: Util.spyFunc(onError),
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onEvent: Util.spyFunc(onEvent),
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onManifestUpdate: Util.spyFunc(onManifestUpdate),
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onSegmentAppended: Util.spyFunc(onSegmentAppended),
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};
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streamingEngine = new shaka.media.StreamingEngine(
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/** @type {shaka.extern.Manifest} */(manifest), playerInterface);
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streamingEngine.configure(config);
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}
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afterEach(() => {
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streamingEngine.destroy().catch(fail);
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});
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afterAll(() => {
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jasmine.clock().uninstall();
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});
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// This test initializes the StreamingEngine (SE) and allows it to play
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// through both Periods.
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//
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// After construction of StreamingEngine, the following should occur:
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// 1. The owner should immediately call switchVariant() with the initial
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// variant.
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// 2. The owner should call start().
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// 3. SE should setup each of the initial Streams.
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// 4. SE should start appending the initial Streams' segments.
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// 5. SE should call MediaSourceEngine.endOfStream() after it has appended
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// both segments from the second Period. At this point, the playhead
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// should not be at the end of the presentation, but the test will be
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// effectively over since SE will have nothing else to do.
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it('initializes and plays VOD', async () => {
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setupVod();
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mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
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createStreamingEngine();
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// Here we go!
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streamingEngine.switchVariant(variant);
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streamingEngine.switchTextStream(textStream);
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await streamingEngine.start();
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playing = true;
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// Verify buffers.
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expect(mediaSourceEngine.initSegments).toEqual({
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audio: [false, false],
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video: [false, false],
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text: [],
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});
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expect(mediaSourceEngine.segments).toEqual({
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audio: [false, false, false, false],
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video: [false, false, false, false],
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text: [false, false, false, false],
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});
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const expectedMseInit = new Map();
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expectedMseInit.set(ContentType.AUDIO, audioStream);
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expectedMseInit.set(ContentType.VIDEO, videoStream);
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expectedMseInit.set(ContentType.TEXT, textStream);
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expect(mediaSourceEngine.init).toHaveBeenCalledWith(expectedMseInit, false);
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expect(mediaSourceEngine.init).toHaveBeenCalledTimes(1);
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expect(mediaSourceEngine.setDuration).toHaveBeenCalledTimes(1);
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expect(mediaSourceEngine.setDuration).toHaveBeenCalledWith(40);
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await runTest();
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expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
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// Verify buffers.
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expect(mediaSourceEngine.initSegments).toEqual({
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audio: [false, true],
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video: [false, true],
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text: [],
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});
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expect(mediaSourceEngine.segments).toEqual({
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audio: [true, true, true, true],
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video: [true, true, true, true],
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text: [true, true, true, true],
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});
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netEngine.expectRangeRequest(
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'0_audio_init',
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initSegmentRanges[ContentType.AUDIO][0],
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initSegmentRanges[ContentType.AUDIO][1]);
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netEngine.expectRangeRequest(
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'0_video_init',
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initSegmentRanges[ContentType.VIDEO][0],
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initSegmentRanges[ContentType.VIDEO][1]);
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netEngine.expectRangeRequest(
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'1_audio_init',
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initSegmentRanges[ContentType.AUDIO][0],
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initSegmentRanges[ContentType.AUDIO][1]);
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netEngine.expectRangeRequest(
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'1_video_init',
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initSegmentRanges[ContentType.VIDEO][0],
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initSegmentRanges[ContentType.VIDEO][1]);
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const segmentType = shaka.net.NetworkingEngine.RequestType.SEGMENT;
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netEngine.expectRequest('0_audio_0', segmentType);
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netEngine.expectRequest('0_video_0', segmentType);
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netEngine.expectRequest('0_text_0', segmentType);
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netEngine.expectRequest('0_audio_1', segmentType);
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netEngine.expectRequest('0_video_1', segmentType);
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netEngine.expectRequest('0_text_1', segmentType);
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netEngine.expectRequest('1_audio_2', segmentType);
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netEngine.expectRequest('1_video_2', segmentType);
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netEngine.expectRequest('1_text_2', segmentType);
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netEngine.expectRequest('1_audio_3', segmentType);
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netEngine.expectRequest('1_video_3', segmentType);
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netEngine.expectRequest('1_text_3', segmentType);
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});
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|
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describe('unloadTextStream', () => {
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it('doesn\'t send requests for text after calling unload', async () => {
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setupVod();
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mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
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createStreamingEngine();
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streamingEngine.switchVariant(variant);
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streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Verify that after unloading text stream, no network request for text
|
|
// is sent.
|
|
await runTest(() => {
|
|
const segmentType = shaka.net.NetworkingEngine.RequestType.SEGMENT;
|
|
|
|
if (presentationTimeInSeconds == 1) {
|
|
netEngine.expectRequest('0_text_0', segmentType);
|
|
netEngine.request.calls.reset();
|
|
streamingEngine.unloadTextStream();
|
|
} else if (presentationTimeInSeconds == 35) {
|
|
netEngine.expectNoRequest('0_text_0', segmentType);
|
|
netEngine.expectNoRequest('0_text_1', segmentType);
|
|
netEngine.expectNoRequest('1_text_2', segmentType);
|
|
netEngine.expectNoRequest('1_text_3', segmentType);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
|
|
it('initializes and plays live', async () => {
|
|
setupLive();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
// Here we go!
|
|
presentationTimeInSeconds = 100;
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest(slideSegmentAvailabilityWindow);
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
|
|
// Since we started playback from segment 11, segments 10 through 14
|
|
// should be buffered. Those segment numbers are 1-based, and this array
|
|
// is 0-based, so we expect i >= 9 to be downloaded.
|
|
const segments = mediaSourceEngine.segments;
|
|
for (const i of shaka.util.Iterables.range(14)) {
|
|
expect(segments[ContentType.AUDIO][i]).withContext(i).toBe(i >= 9);
|
|
expect(segments[ContentType.VIDEO][i]).withContext(i).toBe(i >= 9);
|
|
expect(segments[ContentType.TEXT][i]).withContext(i).toBe(i >= 9);
|
|
}
|
|
});
|
|
|
|
it('plays when a small gap is present at the beginning', async () => {
|
|
const drift = 0.050; // 50 ms
|
|
|
|
setupVod();
|
|
mediaSourceEngine =
|
|
new shaka.test.FakeMediaSourceEngine(segmentData, drift);
|
|
createStreamingEngine();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
});
|
|
|
|
it('plays with no chosen text streams', async () => {
|
|
setupVod();
|
|
manifest.textStreams = [];
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
// Don't call switchTextStream.
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [false, false, false, false],
|
|
});
|
|
});
|
|
|
|
it('updates the timeline duration to match media duration', async () => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
mediaSourceEngine.endOfStream.and.callFake(() => {
|
|
expect(mediaSourceEngine.setDuration).toHaveBeenCalledWith(40);
|
|
expect(mediaSourceEngine.setDuration).toHaveBeenCalledTimes(1);
|
|
mediaSourceEngine.setDuration.calls.reset();
|
|
// Simulate the media ending BEFORE the expected (manifest) duration.
|
|
mediaSourceEngine.getDuration.and.returnValue(35);
|
|
return Promise.resolve();
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
expect(timeline.setDuration).toHaveBeenCalledWith(35);
|
|
});
|
|
|
|
// https://github.com/google/shaka-player/issues/979
|
|
it('does not expand the timeline duration', async () => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
mediaSourceEngine.endOfStream.and.callFake(() => {
|
|
expect(mediaSourceEngine.setDuration).toHaveBeenCalledWith(40);
|
|
expect(mediaSourceEngine.setDuration).toHaveBeenCalledTimes(1);
|
|
mediaSourceEngine.setDuration.calls.reset();
|
|
// Simulate the media ending AFTER the expected (manifest) duration.
|
|
mediaSourceEngine.getDuration.and.returnValue(41);
|
|
return Promise.resolve();
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
expect(timeline.setDuration).not.toHaveBeenCalled();
|
|
});
|
|
|
|
// https://github.com/google/shaka-player/issues/1967
|
|
it('does not change duration when 0', async () => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
// The duration can spuriously be set to 0, so we should ignore this and not
|
|
// update the duration.
|
|
mediaSourceEngine.getDuration.and.returnValue(0);
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
expect(timeline.setDuration).not.toHaveBeenCalled();
|
|
});
|
|
|
|
it('applies fudge factors for append window', async () => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
// The second Period starts at 20, so we should set the appendWindowStart to
|
|
// 20, but reduced by a small fudge factor.
|
|
const lt20 = {
|
|
asymmetricMatch: (val) => val >= 19.9 && val < 20,
|
|
};
|
|
const gt40 = {
|
|
asymmetricMatch: (val) => val > 40 && val <= 40.1,
|
|
};
|
|
expect(mediaSourceEngine.setStreamProperties)
|
|
.toHaveBeenCalledWith('video', 0, lt20, gt40);
|
|
});
|
|
|
|
it('does not buffer one media type ahead of another', async () => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.bufferingGoal = 60;
|
|
config.failureCallback = () => streamingEngine.retry();
|
|
createStreamingEngine(config);
|
|
|
|
// Make requests for different types take different amounts of time.
|
|
// This would let some media types buffer faster than others if unchecked.
|
|
netEngine.delays.text = 0.1;
|
|
netEngine.delays.audio = 1.0;
|
|
netEngine.delays.video = 10.0;
|
|
|
|
mediaSourceEngine.appendBuffer.and.callFake((type, data, start, end) => {
|
|
// Call to the underlying implementation.
|
|
const p = mediaSourceEngine.appendBufferImpl(type, data, start, end);
|
|
|
|
// Validate that no one media type got ahead of any other.
|
|
let minBuffered = Infinity;
|
|
let maxBuffered = 0;
|
|
for (const t of ['audio', 'video', 'text']) {
|
|
const buffered = mediaSourceEngine.bufferedAheadOfImpl(t, 0);
|
|
minBuffered = Math.min(minBuffered, buffered);
|
|
maxBuffered = Math.max(maxBuffered, buffered);
|
|
}
|
|
|
|
// Simulated playback doesn't start until some of each is buffered. This
|
|
// realism is important to the test passing.
|
|
if (minBuffered > 0) {
|
|
playing = true;
|
|
}
|
|
|
|
// Sanity check.
|
|
expect(maxBuffered).not.toBeLessThan(minBuffered);
|
|
// Proof that we didn't get too far ahead (10s == 1 segment).
|
|
expect(maxBuffered - minBuffered).not.toBeGreaterThan(10);
|
|
|
|
return p;
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
// Simulated playback is started in the appendBuffer fake when some of each
|
|
// type is buffered. This realism is important to the test passing.
|
|
playing = false;
|
|
|
|
await runTest();
|
|
// Make sure appendBuffer was called, so that we know that we executed the
|
|
// checks in our fake above.
|
|
expect(mediaSourceEngine.appendBuffer).toHaveBeenCalled();
|
|
});
|
|
|
|
describe('switchVariant/switchTextStream', () => {
|
|
let initialVariant;
|
|
let sameAudioVariant;
|
|
let sameVideoVariant;
|
|
let initialTextStream;
|
|
|
|
beforeEach(() => {
|
|
// Set up a manifest with multiple variants and a text stream.
|
|
manifest = shaka.test.ManifestGenerator.generate((manifest) => {
|
|
manifest.addVariant(0, (variant) => {
|
|
variant.addAudio(10, (stream) => {
|
|
stream.useSegmentTemplate('audio-10-%d.mp4', 10);
|
|
});
|
|
variant.addVideo(11, (stream) => {
|
|
stream.useSegmentTemplate('video-11-%d.mp4', 10);
|
|
});
|
|
});
|
|
manifest.addVariant(1, (variant) => {
|
|
variant.addExistingStream(10); // audio
|
|
variant.addVideo(12, (stream) => {
|
|
stream.useSegmentTemplate('video-12-%d.mp4', 10);
|
|
});
|
|
});
|
|
manifest.addVariant(2, (variant) => {
|
|
variant.addAudio(13, (stream) => {
|
|
stream.useSegmentTemplate('audio-13-%d.mp4', 10);
|
|
});
|
|
variant.addExistingStream(12); // video
|
|
});
|
|
manifest.addTextStream(20, (stream) => {
|
|
stream.useSegmentTemplate('text-20-%d.mp4', 10);
|
|
});
|
|
});
|
|
|
|
initialVariant = manifest.variants[0];
|
|
sameAudioVariant = manifest.variants[1];
|
|
sameVideoVariant = manifest.variants[2];
|
|
initialTextStream = manifest.textStreams[0];
|
|
|
|
// For these tests, we don't care about specific data appended.
|
|
// Just return any old ArrayBuffer for any requested segment.
|
|
netEngine = {
|
|
request: (requestType, request) => {
|
|
const buffer = new ArrayBuffer(0);
|
|
const response = {uri: request.uris[0], data: buffer, headers: {}};
|
|
return shaka.util.AbortableOperation.completed(response);
|
|
},
|
|
};
|
|
|
|
// For these tests, we also don't need FakeMediaSourceEngine to verify
|
|
// its input data.
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine({});
|
|
mediaSourceEngine.clear.and.returnValue(Promise.resolve());
|
|
mediaSourceEngine.bufferedAheadOf.and.returnValue(0);
|
|
mediaSourceEngine.bufferStart.and.returnValue(0);
|
|
mediaSourceEngine.setStreamProperties.and.returnValue(Promise.resolve());
|
|
mediaSourceEngine.remove.and.returnValue(Promise.resolve());
|
|
|
|
const bufferEnd = {audio: 0, video: 0, text: 0};
|
|
mediaSourceEngine.appendBuffer.and.callFake(
|
|
(type, data, start, end) => {
|
|
bufferEnd[type] = end;
|
|
return Promise.resolve();
|
|
});
|
|
mediaSourceEngine.bufferEnd.and.callFake((type) => {
|
|
return bufferEnd[type];
|
|
});
|
|
mediaSourceEngine.bufferedAheadOf.and.callFake((type, start) => {
|
|
return Math.max(0, bufferEnd[type] - start);
|
|
});
|
|
mediaSourceEngine.isBuffered.and.callFake((type, time) => {
|
|
return time >= 0 && time < bufferEnd[type];
|
|
});
|
|
|
|
playing = false;
|
|
presentationTimeInSeconds = 0;
|
|
createStreamingEngine();
|
|
|
|
streamingEngine.switchVariant(initialVariant);
|
|
streamingEngine.switchTextStream(initialTextStream);
|
|
});
|
|
|
|
it('will not clear buffers if streams have not changed', async () => {
|
|
streamingEngine.start().catch(fail);
|
|
playing = true;
|
|
|
|
await Util.fakeEventLoop(1);
|
|
|
|
mediaSourceEngine.clear.calls.reset();
|
|
streamingEngine.switchVariant(sameAudioVariant, /* clearBuffer= */ true);
|
|
await Util.fakeEventLoop(1);
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalledWith('audio');
|
|
expect(mediaSourceEngine.clear).toHaveBeenCalledWith('video');
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalledWith('text');
|
|
|
|
mediaSourceEngine.clear.calls.reset();
|
|
streamingEngine.switchVariant(sameVideoVariant, /* clearBuffer= */ true);
|
|
await Util.fakeEventLoop(1);
|
|
expect(mediaSourceEngine.clear).toHaveBeenCalledWith('audio');
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalledWith('video');
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalledWith('text');
|
|
|
|
mediaSourceEngine.clear.calls.reset();
|
|
streamingEngine.switchTextStream(initialTextStream);
|
|
await Util.fakeEventLoop(1);
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalled();
|
|
});
|
|
});
|
|
|
|
describe('handles seeks (VOD)', () => {
|
|
/** @type {!jasmine.Spy} */
|
|
let onTick;
|
|
|
|
beforeEach(() => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
onTick = jasmine.createSpy('onTick');
|
|
onTick.and.stub();
|
|
});
|
|
|
|
it('into buffered regions', async () => {
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
let seekComplete = false;
|
|
await runTest(() => {
|
|
if (presentationTimeInSeconds == 6 && !seekComplete) {
|
|
// Seek backwards to a buffered region in the first Period.
|
|
presentationTimeInSeconds -= 5;
|
|
streamingEngine.seeked();
|
|
seekComplete = true;
|
|
}
|
|
});
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
});
|
|
|
|
it('into partially buffered regions in the same period', async () => {
|
|
// When seeking into a region within the same period, or changing
|
|
// resolution, and after the seek some states are buffered and some
|
|
// are unbuffered, StreamingEngine should only clear the unbuffered
|
|
// states.
|
|
|
|
mediaSourceEngine.endOfStream.and.callFake(() => {
|
|
// Should have the first Period entirely buffered.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
|
|
// Fake the audio buffer being removed.
|
|
mediaSourceEngine.segments[ContentType.AUDIO] =
|
|
[true, true, false, false];
|
|
|
|
// Seek back into the second Period.
|
|
presentationTimeInSeconds -= 5;
|
|
expect(presentationTimeInSeconds).toBeGreaterThan(19);
|
|
streamingEngine.seeked();
|
|
|
|
mediaSourceEngine.endOfStream.and.returnValue(Promise.resolve());
|
|
return Promise.resolve();
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
// When seeking within the same period, clear the buffer of the
|
|
// unbuffered streams.
|
|
expect(mediaSourceEngine.clear).toHaveBeenCalledWith('audio');
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalledWith('video');
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalledWith('text');
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, false, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
});
|
|
|
|
it('into buffered regions across Periods', async () => {
|
|
mediaSourceEngine.endOfStream.and.callFake(() => {
|
|
// Seek backwards to a buffered region in the first Period.
|
|
presentationTimeInSeconds -= 20;
|
|
expect(presentationTimeInSeconds).toBeLessThan(20);
|
|
streamingEngine.seeked();
|
|
|
|
// Verify that buffers are not cleared.
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalled();
|
|
|
|
return Promise.resolve();
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
});
|
|
|
|
it('into unbuffered regions', async () => {
|
|
onTick.and.callFake(() => {
|
|
if (presentationTimeInSeconds == 6) {
|
|
// Note that since the buffering goal is 5 seconds and each segment is
|
|
// 10 seconds long, the second segment of this Period will be required
|
|
// at 6 seconds.
|
|
|
|
// Verify that all buffers have been cleared.
|
|
expect(mediaSourceEngine.clear)
|
|
.toHaveBeenCalledWith(ContentType.AUDIO);
|
|
expect(mediaSourceEngine.clear)
|
|
.toHaveBeenCalledWith(ContentType.VIDEO);
|
|
expect(mediaSourceEngine.clear)
|
|
.toHaveBeenCalledWith(ContentType.TEXT);
|
|
|
|
// Verify buffers. The first segment is present because we start
|
|
// off-by-one after a seek.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [true, false],
|
|
video: [true, false],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, true, false, false],
|
|
video: [false, true, false, false],
|
|
text: [false, true, false, false],
|
|
});
|
|
}
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Seek forward to an unbuffered region in the first Period.
|
|
expect(presentationTimeInSeconds).toBe(0);
|
|
presentationTimeInSeconds += 15;
|
|
streamingEngine.seeked();
|
|
|
|
await runTest(Util.spyFunc(onTick));
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, true, true, true],
|
|
video: [false, true, true, true],
|
|
text: [false, true, true, true],
|
|
});
|
|
});
|
|
|
|
it('into unbuffered regions across Periods', async () => {
|
|
// Start from the second Period.
|
|
presentationTimeInSeconds = 25;
|
|
|
|
mediaSourceEngine.endOfStream.and.callFake(() => {
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, false, true, true],
|
|
video: [false, false, true, true],
|
|
text: [false, false, true, true],
|
|
});
|
|
|
|
// Seek backwards to an unbuffered region in the first Period.
|
|
presentationTimeInSeconds -= 20;
|
|
expect(presentationTimeInSeconds).toBeLessThan(20);
|
|
streamingEngine.seeked();
|
|
|
|
onTick.and.callFake(() => {
|
|
// Verify that all buffers have been cleared.
|
|
expect(mediaSourceEngine.clear)
|
|
.toHaveBeenCalledWith(ContentType.AUDIO);
|
|
expect(mediaSourceEngine.clear)
|
|
.toHaveBeenCalledWith(ContentType.VIDEO);
|
|
expect(mediaSourceEngine.clear)
|
|
.toHaveBeenCalledWith(ContentType.TEXT);
|
|
onTick.and.stub();
|
|
});
|
|
|
|
mediaSourceEngine.endOfStream.and.returnValue(Promise.resolve());
|
|
return Promise.resolve();
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest(Util.spyFunc(onTick));
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
});
|
|
|
|
it('into unbuffered regions when nothing is buffered', async () => {
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Nothing is buffered yet.
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, false, false, false],
|
|
video: [false, false, false, false],
|
|
text: [false, false, false, false],
|
|
});
|
|
|
|
// Seek forward to an unbuffered region in the first Period.
|
|
presentationTimeInSeconds = 15;
|
|
streamingEngine.seeked();
|
|
|
|
onTick.and.callFake(() => {
|
|
// Nothing should have been cleared.
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalled();
|
|
onTick.and.stub();
|
|
});
|
|
|
|
await runTest(Util.spyFunc(onTick));
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, true, true, true],
|
|
video: [false, true, true, true],
|
|
text: [false, true, true, true],
|
|
});
|
|
});
|
|
|
|
it('into unbuffered regions near segment start', async () => {
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Seek forward to an unbuffered region in the first Period.
|
|
presentationTimeInSeconds = 11;
|
|
streamingEngine.seeked();
|
|
|
|
onTick.and.callFake(() => {
|
|
// Nothing should have been cleared.
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalled();
|
|
onTick.and.stub();
|
|
});
|
|
|
|
await runTest(Util.spyFunc(onTick));
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
// Should buffer previous segment despite being inside segment 2.
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
});
|
|
|
|
// If we seek back into an unbuffered region but do not called seeked(),
|
|
// StreamingEngine should wait for seeked() to be called.
|
|
it('back into unbuffered regions without seeked()', async () => {
|
|
// Start from the second segment in the second Period.
|
|
presentationTimeInSeconds = 30;
|
|
|
|
mediaSourceEngine.endOfStream.and.callFake(() => {
|
|
// Seek backwards to an unbuffered region in the second Period. Do not
|
|
// call seeked().
|
|
presentationTimeInSeconds = 20;
|
|
return Promise.resolve();
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
// Verify buffers. Segment 3 should not be buffered since we never
|
|
// called seeked().
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, false, true, true],
|
|
video: [false, false, true, true],
|
|
text: [false, false, true, true],
|
|
});
|
|
});
|
|
|
|
// If we seek forward into an unbuffered region but do not called seeked(),
|
|
// StreamingEngine should continue buffering. This test also exercises the
|
|
// case where the playhead moves past the end of the buffer, which may
|
|
// occur on some browsers depending on the playback rate.
|
|
it('forward into unbuffered regions without seeked()', async () => {
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
let seekStarted = false;
|
|
await runTest(() => {
|
|
if (!seekStarted) {
|
|
// Seek forward to an unbuffered region in the first Period. Do not
|
|
// call seeked().
|
|
presentationTimeInSeconds += 15;
|
|
seekStarted = true;
|
|
}
|
|
});
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
});
|
|
|
|
it('into partially buffered regions across periods', async () => {
|
|
// Seeking into a region where some buffers (text) are buffered and some
|
|
// are not should work.
|
|
|
|
mediaSourceEngine.endOfStream.and.callFake(() => {
|
|
// Should have the first Period entirely buffered.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
|
|
// Fake the audio/video buffers being removed.
|
|
// Now only text is buffered from the first period.
|
|
mediaSourceEngine.segments[ContentType.AUDIO] =
|
|
[false, false, true, true];
|
|
mediaSourceEngine.segments[ContentType.VIDEO] =
|
|
[false, false, true, true];
|
|
|
|
// Seek back into the first Period.
|
|
presentationTimeInSeconds -= 20;
|
|
expect(presentationTimeInSeconds).toBeLessThan(29);
|
|
streamingEngine.seeked();
|
|
|
|
// Only the unbuffered streams were cleared.
|
|
expect(mediaSourceEngine.clear).toHaveBeenCalledWith('audio');
|
|
expect(mediaSourceEngine.clear).toHaveBeenCalledWith('video');
|
|
expect(mediaSourceEngine.clear).not.toHaveBeenCalledWith('text');
|
|
|
|
mediaSourceEngine.endOfStream.and.returnValue(Promise.resolve());
|
|
return Promise.resolve();
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('handles seeks (live)', () => {
|
|
beforeEach(() => {
|
|
setupLive();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData, 0);
|
|
createStreamingEngine();
|
|
presentationTimeInSeconds = 100;
|
|
});
|
|
|
|
it('outside segment availability window', async () => {
|
|
timeline.segmentAvailabilityStart = 90;
|
|
timeline.segmentAvailabilityEnd = 110;
|
|
|
|
presentationTimeInSeconds = 90;
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Seek forward to an unbuffered and unavailable region in the second
|
|
// Period; set playing to false since the playhead can't move at the
|
|
// seek target.
|
|
expect(timeline.getSegmentAvailabilityEnd()).toBeLessThan(125);
|
|
presentationTimeInSeconds = 125;
|
|
playing = false;
|
|
streamingEngine.seeked();
|
|
|
|
// Eventually StreamingEngine should request the first segment (since
|
|
// it needs the second segment) of the second Period when it becomes
|
|
// available.
|
|
const originalAppendBuffer =
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
shaka.test.FakeMediaSourceEngine.prototype.appendBufferImpl;
|
|
mediaSourceEngine.appendBuffer.and.callFake(
|
|
(type, data, startTime, endTime) => {
|
|
expect(presentationTimeInSeconds).toBe(125);
|
|
if (startTime >= 100) {
|
|
// Ignore a possible call for the first Period.
|
|
expect(timeline.getSegmentAvailabilityStart()).toBe(100);
|
|
expect(timeline.getSegmentAvailabilityEnd()).toBe(120);
|
|
playing = true;
|
|
mediaSourceEngine.appendBuffer.and.callFake(
|
|
originalAppendBuffer);
|
|
}
|
|
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
return originalAppendBuffer.call(
|
|
mediaSourceEngine, type, data, startTime, endTime);
|
|
});
|
|
|
|
await runTest(slideSegmentAvailabilityWindow);
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
|
|
// Since we performed an unbuffered seek into the second Period, the
|
|
// first 12 segments should not be buffered.
|
|
for (const i of shaka.util.Iterables.range(14)) {
|
|
expect(mediaSourceEngine.segments[ContentType.AUDIO][i]).toBe(i >= 12);
|
|
expect(mediaSourceEngine.segments[ContentType.VIDEO][i]).toBe(i >= 12);
|
|
expect(mediaSourceEngine.segments[ContentType.TEXT][i]).toBe(i >= 12);
|
|
}
|
|
});
|
|
});
|
|
|
|
describe('handles errors', () => {
|
|
beforeEach(() => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
});
|
|
|
|
it('from Stream setup', async () => {
|
|
// Don't use returnValue with Promise.reject, or it may be detected as an
|
|
// unhandled Promise rejection.
|
|
videoStream.createSegmentIndex.and.callFake(
|
|
() => Promise.reject('FAKE_ERROR'));
|
|
|
|
onError.and.callFake((error) => {
|
|
expect(error).toBe('FAKE_ERROR');
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(videoStream.createSegmentIndex).toHaveBeenCalled();
|
|
expect(onError).toHaveBeenCalled();
|
|
});
|
|
|
|
it('from Stream setup on switch', async () => {
|
|
const expectedError = new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.NETWORK,
|
|
shaka.util.Error.Code.HTTP_ERROR);
|
|
|
|
// Don't use returnValue with Promise.reject, or it may be detected as an
|
|
// unhandled Promise rejection.
|
|
alternateVideoStream.createSegmentIndex.and.callFake(
|
|
() => Promise.reject(expectedError));
|
|
|
|
onError.and.callFake((error) => {
|
|
expect(error).toBe(expectedError);
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
streamingEngine.switchVariant(
|
|
alternateVariant, /* clear_buffer= */ true, /* safe_margin= */ 0);
|
|
|
|
await runTest();
|
|
|
|
expect(alternateVideoStream.createSegmentIndex).toHaveBeenCalled();
|
|
expect(onError).toHaveBeenCalled();
|
|
});
|
|
|
|
it('from failed init segment append during startup', async () => {
|
|
const expectedError = new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.MEDIA,
|
|
shaka.util.Error.Code.MEDIA_SOURCE_OPERATION_FAILED);
|
|
|
|
onError.and.callFake((error) => {
|
|
Util.expectToEqualError(error, expectedError);
|
|
});
|
|
|
|
const originalAppendBuffer =
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
shaka.test.FakeMediaSourceEngine.prototype.appendBufferImpl;
|
|
mediaSourceEngine.appendBuffer.and.callFake(
|
|
(type, data, startTime, endTime) => {
|
|
// Reject the first video init segment.
|
|
if (data == segmentData[ContentType.VIDEO].initSegments[0]) {
|
|
return Promise.reject(expectedError);
|
|
} else {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
return originalAppendBuffer.call(
|
|
mediaSourceEngine, type, data, startTime, endTime);
|
|
}
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
expect(onError).toHaveBeenCalled();
|
|
});
|
|
|
|
it('from failed media segment append during startup', async () => {
|
|
const expectedError = new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.MEDIA,
|
|
shaka.util.Error.Code.MEDIA_SOURCE_OPERATION_FAILED);
|
|
|
|
onError.and.callFake((error) => {
|
|
Util.expectToEqualError(error, expectedError);
|
|
});
|
|
|
|
const originalAppendBuffer =
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
shaka.test.FakeMediaSourceEngine.prototype.appendBufferImpl;
|
|
mediaSourceEngine.appendBuffer.and.callFake(
|
|
(type, data, startTime, endTime) => {
|
|
// Reject the first audio segment.
|
|
if (data == segmentData[ContentType.AUDIO].segments[0]) {
|
|
return Promise.reject(expectedError);
|
|
} else {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
return originalAppendBuffer.call(
|
|
mediaSourceEngine, type, data, startTime, endTime);
|
|
}
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
expect(onError).toHaveBeenCalled();
|
|
});
|
|
|
|
it('from failed clear in switchVariant', async () => {
|
|
const expectedError = new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.MEDIA,
|
|
shaka.util.Error.Code.MEDIA_SOURCE_OPERATION_FAILED);
|
|
mediaSourceEngine.clear.and.returnValue(Promise.reject(expectedError));
|
|
|
|
onError.and.stub();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
streamingEngine.switchVariant(
|
|
alternateVariant, /* clear_buffer= */ true, /* safe_margin= */ 0);
|
|
|
|
await runTest();
|
|
expect(onError).toHaveBeenCalledWith(Util.jasmineError(expectedError));
|
|
});
|
|
});
|
|
|
|
describe('handles network errors', () => {
|
|
it('ignores text stream failures if configured to', async () => {
|
|
setupVod();
|
|
const textUri = '0_text_0';
|
|
const originalNetEngine = netEngine;
|
|
netEngine = {
|
|
request: jasmine.createSpy('request'),
|
|
};
|
|
netEngine.request.and.callFake((requestType, request) => {
|
|
if (request.uris[0] == textUri) {
|
|
return shaka.util.AbortableOperation.failed(new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.NETWORK,
|
|
shaka.util.Error.Code.BAD_HTTP_STATUS, textUri, 404));
|
|
}
|
|
return originalNetEngine.request(requestType, request);
|
|
});
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.ignoreTextStreamFailures = true;
|
|
createStreamingEngine(config);
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(onError).not.toHaveBeenCalled();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
});
|
|
|
|
it('retries if configured to', async () => {
|
|
setupLive();
|
|
|
|
// Wrap the NetworkingEngine to cause errors.
|
|
const targetUri = '0_audio_init';
|
|
failFirstRequestForTarget(netEngine, targetUri,
|
|
shaka.util.Error.Code.BAD_HTTP_STATUS);
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.failureCallback = () => streamingEngine.retry();
|
|
createStreamingEngine(config);
|
|
|
|
presentationTimeInSeconds = 100;
|
|
|
|
onError.and.callFake((error) => {
|
|
expect(error.severity).toBe(shaka.util.Error.Severity.CRITICAL);
|
|
expect(error.category).toBe(shaka.util.Error.Category.NETWORK);
|
|
expect(error.code).toBe(shaka.util.Error.Code.BAD_HTTP_STATUS);
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(onError).toHaveBeenCalledTimes(1);
|
|
expect(netEngine.attempts).toBeGreaterThan(1);
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalledTimes(1);
|
|
});
|
|
|
|
it('does not retry if configured not to', async () => {
|
|
setupLive();
|
|
|
|
// Wrap the NetworkingEngine to cause errors.
|
|
const targetUri = '0_audio_init';
|
|
failFirstRequestForTarget(netEngine, targetUri,
|
|
shaka.util.Error.Code.BAD_HTTP_STATUS);
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.failureCallback = () => {};
|
|
createStreamingEngine(config);
|
|
|
|
presentationTimeInSeconds = 100;
|
|
|
|
onError.and.callFake((error) => {
|
|
expect(error.severity).toBe(shaka.util.Error.Severity.CRITICAL);
|
|
expect(error.category).toBe(shaka.util.Error.Category.NETWORK);
|
|
expect(error.code).toBe(shaka.util.Error.Code.BAD_HTTP_STATUS);
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(onError).toHaveBeenCalledTimes(1);
|
|
expect(netEngine.attempts).toBe(1);
|
|
expect(mediaSourceEngine.endOfStream).not.toHaveBeenCalled();
|
|
});
|
|
|
|
it('does not invoke the callback if the error is handled', async () => {
|
|
setupLive();
|
|
|
|
// Wrap the NetworkingEngine to cause errors.
|
|
const targetUri = '0_audio_init';
|
|
failFirstRequestForTarget(netEngine, targetUri,
|
|
shaka.util.Error.Code.BAD_HTTP_STATUS);
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
|
|
// Configure with a failure callback
|
|
const failureCallback = jasmine.createSpy('failureCallback');
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.failureCallback = shaka.test.Util.spyFunc(failureCallback);
|
|
createStreamingEngine(config);
|
|
|
|
presentationTimeInSeconds = 100;
|
|
|
|
onError.and.callFake((error) => {
|
|
error.handled = true;
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(onError).toHaveBeenCalledTimes(1);
|
|
expect(failureCallback).not.toHaveBeenCalled();
|
|
});
|
|
|
|
it('waits to invoke the failure callback', async () => {
|
|
setupLive();
|
|
|
|
// Wrap the NetworkingEngine to cause errors.
|
|
const targetUri = '0_audio_init';
|
|
failFirstRequestForTarget(netEngine, targetUri,
|
|
shaka.util.Error.Code.BAD_HTTP_STATUS);
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
|
|
// Configure with a failure callback that records the callback time.
|
|
/** @type {?number} */
|
|
let callbackTime = null;
|
|
const failureCallback = jasmine.createSpy('failureCallback');
|
|
failureCallback.and.callFake(() => {
|
|
callbackTime = Date.now();
|
|
});
|
|
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.failureCallback = shaka.test.Util.spyFunc(failureCallback);
|
|
config.retryParameters.maxAttempts = 2;
|
|
config.retryParameters.baseDelay = 10000;
|
|
config.retryParameters.fuzzFactor = 0;
|
|
createStreamingEngine(config);
|
|
|
|
presentationTimeInSeconds = 100;
|
|
onError.and.stub();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
const startTime = Date.now();
|
|
await runTest();
|
|
expect(failureCallback).toHaveBeenCalled();
|
|
// baseDelay == 10000, maybe be longer due to delays in the event loop.
|
|
expect(callbackTime - startTime).toBeGreaterThanOrEqual(10000);
|
|
});
|
|
});
|
|
|
|
describe('retry()', () => {
|
|
it('resumes streaming after failure', async () => {
|
|
setupVod();
|
|
|
|
// Wrap the NetworkingEngine to cause errors.
|
|
const targetUri = '0_audio_init';
|
|
const originalNetEngineRequest = netEngine.request;
|
|
failFirstRequestForTarget(netEngine, targetUri,
|
|
shaka.util.Error.Code.BAD_HTTP_STATUS);
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
onError.and.callFake((error) => {
|
|
// Restore the original fake request function.
|
|
netEngine.request = originalNetEngineRequest;
|
|
netEngine.request.calls.reset();
|
|
|
|
// Retry streaming.
|
|
expect(streamingEngine.retry()).toBe(true);
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
// We definitely called onError().
|
|
expect(onError).toHaveBeenCalledTimes(1);
|
|
// We reset the request calls in onError() just before retry(), so this
|
|
// count reflects new calls since retry().
|
|
expect(netEngine.request).toHaveBeenCalled();
|
|
// The retry worked, so we should have reached the end of the stream.
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalledTimes(1);
|
|
});
|
|
|
|
it('does not resume streaming after quota error', async () => {
|
|
setupVod();
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
onError.and.callFake((error) => {
|
|
expect(error.code).toBe(shaka.util.Error.Code.QUOTA_EXCEEDED_ERROR);
|
|
|
|
// Retry streaming, which should fail and return false.
|
|
netEngine.request.calls.reset();
|
|
expect(streamingEngine.retry()).toBe(false);
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest(() => {
|
|
if (presentationTimeInSeconds == 2) {
|
|
// Now that we're streaming, throw QuotaExceededError on every segment
|
|
// to quickly trigger the quota error.
|
|
const appendBufferSpy = jasmine.createSpy('appendBuffer');
|
|
appendBufferSpy.and.callFake((type, data, startTime, endTime) => {
|
|
throw new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.MEDIA,
|
|
shaka.util.Error.Code.QUOTA_EXCEEDED_ERROR,
|
|
type);
|
|
});
|
|
mediaSourceEngine.appendBuffer = appendBufferSpy;
|
|
}
|
|
});
|
|
|
|
// We definitely called onError().
|
|
expect(onError).toHaveBeenCalledTimes(1);
|
|
|
|
// We reset the request calls in onError() just before retry(), so this
|
|
// count reflects new calls since retry().
|
|
expect(netEngine.request).not.toHaveBeenCalled();
|
|
expect(mediaSourceEngine.endOfStream).not.toHaveBeenCalled();
|
|
});
|
|
|
|
it('does not resume streaming after destruction', async () => {
|
|
setupVod();
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Here we go!
|
|
await runTest(() => {
|
|
if (presentationTimeInSeconds == 3) {
|
|
streamingEngine.destroy();
|
|
|
|
// Retry streaming, which should fail and return false.
|
|
netEngine.request.calls.reset();
|
|
expect(streamingEngine.retry()).toBe(false);
|
|
}
|
|
});
|
|
|
|
// We reset the request calls in onError() just before retry(), so this
|
|
// count reflects new calls since retry().
|
|
expect(netEngine.request).not.toHaveBeenCalled();
|
|
expect(mediaSourceEngine.endOfStream).not.toHaveBeenCalled();
|
|
});
|
|
});
|
|
|
|
describe('eviction', () => {
|
|
let config;
|
|
|
|
beforeEach(() => {
|
|
setupVod();
|
|
|
|
manifest.minBufferTime = 1;
|
|
|
|
config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.rebufferingGoal = 1;
|
|
config.bufferingGoal = 1;
|
|
config.bufferBehind = 10;
|
|
});
|
|
|
|
it('evicts media to meet the max buffer tail limit', async () => {
|
|
// Create StreamingEngine.
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine(config);
|
|
|
|
const originalRemove =
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
shaka.test.FakeMediaSourceEngine.prototype.removeImpl
|
|
.bind(mediaSourceEngine);
|
|
|
|
mediaSourceEngine.remove.and.callFake((type, start, end) => {
|
|
expect(presentationTimeInSeconds).toBe(20);
|
|
expect(start).toBe(0);
|
|
expect(end).toBe(10);
|
|
|
|
if (mediaSourceEngine.remove.calls.count() == 3) {
|
|
mediaSourceEngine.remove.and.callFake((type, start, end) => {
|
|
expect(presentationTimeInSeconds).toBe(30);
|
|
expect(start).toBe(10);
|
|
expect(end).toBe(20);
|
|
return originalRemove(type, start, end);
|
|
});
|
|
}
|
|
|
|
return originalRemove(type, start, end);
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Since StreamingEngine is free to peform audio, video, and text updates
|
|
// in any order, there are many valid ways in which StreamingEngine can
|
|
// evict segments. So, instead of verifying the exact, final buffer
|
|
// configuration, ensure the byte limit is never exceeded and at least
|
|
// one segment of each type is buffered at the end of the test.
|
|
await runTest();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
|
|
expect(mediaSourceEngine.remove)
|
|
.toHaveBeenCalledWith(ContentType.AUDIO, 0, 10);
|
|
expect(mediaSourceEngine.remove)
|
|
.toHaveBeenCalledWith(ContentType.AUDIO, 10, 20);
|
|
|
|
expect(mediaSourceEngine.remove)
|
|
.toHaveBeenCalledWith(ContentType.VIDEO, 0, 10);
|
|
expect(mediaSourceEngine.remove)
|
|
.toHaveBeenCalledWith(ContentType.VIDEO, 10, 20);
|
|
|
|
expect(mediaSourceEngine.remove)
|
|
.toHaveBeenCalledWith(ContentType.TEXT, 0, 10);
|
|
expect(mediaSourceEngine.remove)
|
|
.toHaveBeenCalledWith(ContentType.TEXT, 10, 20);
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, false, true, true],
|
|
video: [false, false, true, true],
|
|
text: [false, false, true, true],
|
|
});
|
|
});
|
|
|
|
it('doesn\'t evict too much when bufferBehind is very low', async () => {
|
|
// Set the bufferBehind to a value significantly below the segment size.
|
|
config.bufferBehind = 0.1;
|
|
|
|
// Create StreamingEngine.
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine(config);
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest(() => {
|
|
if (presentationTimeInSeconds == 8) {
|
|
// Run the test until a bit before the end of the first segment.
|
|
playing = false;
|
|
} else if (presentationTimeInSeconds == 6) {
|
|
// Soon before stopping the test, set the buffering goal up way
|
|
// higher to trigger more segment fetching, to (potentially) trigger
|
|
// an eviction.
|
|
config.bufferingGoal = 5;
|
|
streamingEngine.configure(config);
|
|
}
|
|
});
|
|
|
|
// It should not have removed any segments.
|
|
expect(mediaSourceEngine.remove).not.toHaveBeenCalled();
|
|
});
|
|
});
|
|
|
|
describe('QuotaExceededError', () => {
|
|
it('does not fail immediately', async () => {
|
|
setupVod();
|
|
|
|
manifest.minBufferTime = 1;
|
|
|
|
// Create StreamingEngine.
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.rebufferingGoal = 1;
|
|
config.bufferingGoal = 1;
|
|
config.bufferBehind = 10;
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine(config);
|
|
|
|
const originalAppendBuffer =
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
shaka.test.FakeMediaSourceEngine.prototype.appendBufferImpl;
|
|
const appendBufferSpy = jasmine.createSpy('appendBuffer');
|
|
mediaSourceEngine.appendBuffer = appendBufferSpy;
|
|
|
|
// Throw two QuotaExceededErrors at different times.
|
|
let numErrorsThrown = 0;
|
|
appendBufferSpy.and.callFake(
|
|
(type, data, startTime, endTime) => {
|
|
const throwError = (numErrorsThrown == 0 && startTime == 10) ||
|
|
(numErrorsThrown == 1 && startTime == 20);
|
|
if (throwError) {
|
|
numErrorsThrown++;
|
|
throw new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.MEDIA,
|
|
shaka.util.Error.Code.QUOTA_EXCEEDED_ERROR,
|
|
type);
|
|
} else {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
const p = originalAppendBuffer.call(
|
|
mediaSourceEngine, type, data, startTime, endTime);
|
|
return p;
|
|
}
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [false, false, true, true],
|
|
video: [false, false, true, true],
|
|
text: [false, false, true, true],
|
|
});
|
|
});
|
|
|
|
it('fails after multiple QuotaExceededError', async () => {
|
|
setupVod();
|
|
|
|
manifest.minBufferTime = 1;
|
|
|
|
// Create StreamingEngine.
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.rebufferingGoal = 1;
|
|
config.bufferingGoal = 1;
|
|
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine(config);
|
|
|
|
const originalAppendBuffer =
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
shaka.test.FakeMediaSourceEngine.prototype.appendBufferImpl;
|
|
const appendBufferSpy = jasmine.createSpy('appendBuffer');
|
|
mediaSourceEngine.appendBuffer = appendBufferSpy;
|
|
|
|
// Throw QuotaExceededError multiple times after at least one segment of
|
|
// each type has been appended.
|
|
appendBufferSpy.and.callFake(
|
|
(type, data, startTime, endTime) => {
|
|
if (startTime >= 10) {
|
|
throw new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.MEDIA,
|
|
shaka.util.Error.Code.QUOTA_EXCEEDED_ERROR,
|
|
type);
|
|
} else {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
const p = originalAppendBuffer.call(
|
|
mediaSourceEngine, type, data, startTime, endTime);
|
|
return p;
|
|
}
|
|
});
|
|
|
|
onError.and.callFake((error) => {
|
|
expect(error.code).toBe(shaka.util.Error.Code.QUOTA_EXCEEDED_ERROR);
|
|
expect(error.data[0] == ContentType.AUDIO ||
|
|
error.data[0] == ContentType.VIDEO ||
|
|
error.data[0] == ContentType.TEXT).toBe(true);
|
|
});
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
// Stop the playhead after 10 seconds since will not append any
|
|
// segments after this time.
|
|
const stopPlayhead = () => {
|
|
playing = presentationTimeInSeconds < 10;
|
|
};
|
|
|
|
await runTest(stopPlayhead);
|
|
expect(onError).toHaveBeenCalled();
|
|
expect(mediaSourceEngine.endOfStream).not.toHaveBeenCalled();
|
|
});
|
|
});
|
|
|
|
describe('VOD drift', () => {
|
|
beforeEach(() => {
|
|
setupVod();
|
|
});
|
|
|
|
/**
|
|
* @param {number} drift
|
|
*/
|
|
async function testPositiveDrift(drift) {
|
|
mediaSourceEngine =
|
|
new shaka.test.FakeMediaSourceEngine(segmentData, drift);
|
|
createStreamingEngine();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @param {number} drift
|
|
*/
|
|
async function testNegativeDrift(drift) {
|
|
mediaSourceEngine =
|
|
new shaka.test.FakeMediaSourceEngine(segmentData, drift);
|
|
createStreamingEngine();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest();
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
}
|
|
|
|
it('is handled for small + values', () => testPositiveDrift(3));
|
|
it('is handled for large + values', () => testPositiveDrift(12));
|
|
it('is handled for small - values', () => testNegativeDrift(-3));
|
|
});
|
|
|
|
describe('live drift', () => {
|
|
beforeEach(() => {
|
|
setupLive();
|
|
});
|
|
|
|
/**
|
|
* @param {number} drift
|
|
*/
|
|
async function testNegativeDrift(drift) {
|
|
mediaSourceEngine =
|
|
new shaka.test.FakeMediaSourceEngine(segmentData, drift);
|
|
createStreamingEngine();
|
|
|
|
presentationTimeInSeconds = 100;
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest(slideSegmentAvailabilityWindow);
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
|
|
// Verify buffers.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true],
|
|
text: [],
|
|
});
|
|
|
|
// Since we started playback from segment 11, segments 10 through 14
|
|
// should be buffered. Those segment numbers are 1-based, and this array
|
|
// is 0-based, so we expect i >= 9 to be downloaded.
|
|
const segments = mediaSourceEngine.segments;
|
|
for (const i of shaka.util.Iterables.range(14)) {
|
|
expect(segments[ContentType.AUDIO][i]).withContext(i).toBe(i >= 9);
|
|
expect(segments[ContentType.VIDEO][i]).withContext(i).toBe(i >= 9);
|
|
expect(segments[ContentType.TEXT][i]).withContext(i).toBe(i >= 9);
|
|
}
|
|
}
|
|
|
|
it('is handled for large - values', () => testNegativeDrift(-12));
|
|
});
|
|
|
|
describe('setTrickPlay', () => {
|
|
it('uses trick mode track when requested', async () => {
|
|
setupVod(/* trickMode= */ true);
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
// Only buffer ahead 1 second to make it easier to set segment
|
|
// expectations based on playheadTime.
|
|
config.rebufferingGoal = 1;
|
|
config.bufferingGoal = 1;
|
|
createStreamingEngine(config);
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest(() => {
|
|
if (presentationTimeInSeconds == 1) {
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [true, false],
|
|
video: [true, false],
|
|
trickvideo: [false, false],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, false, false, false],
|
|
video: [true, false, false, false],
|
|
trickvideo: [false, false, false, false],
|
|
text: [true, false, false, false],
|
|
});
|
|
|
|
// Engage trick play.
|
|
streamingEngine.setTrickPlay(true);
|
|
} else if (presentationTimeInSeconds == 11) {
|
|
// We're in the second segment, in trick play mode.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [true, false],
|
|
video: [true, false],
|
|
trickvideo: [true, false],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, false, false],
|
|
video: [true, false, false, false],
|
|
trickvideo: [false, true, false, false],
|
|
text: [true, true, false, false],
|
|
});
|
|
} else if (presentationTimeInSeconds == 21) {
|
|
// We've started the second period, still in trick play mode.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [true, false], // no init segment fetched for normal video
|
|
trickvideo: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, false],
|
|
video: [true, false, false, false],
|
|
trickvideo: [false, true, true, false],
|
|
text: [true, true, true, false],
|
|
});
|
|
} else if (presentationTimeInSeconds == 31) {
|
|
// We've started the final segment, still in trick play mode.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [true, false], // no init segment appended for normal video
|
|
trickvideo: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [true, false, false, false],
|
|
trickvideo: [false, true, true, true],
|
|
text: [true, true, true, true],
|
|
});
|
|
|
|
// Disengage trick play mode, which will clear the video buffer.
|
|
streamingEngine.setTrickPlay(false);
|
|
} else if (presentationTimeInSeconds == 39) {
|
|
// We're 1 second from the end of the stream now.
|
|
expect(mediaSourceEngine.initSegments).toEqual({
|
|
audio: [false, true],
|
|
video: [false, true], // init segment appended for normal video now
|
|
trickvideo: [false, true],
|
|
text: [],
|
|
});
|
|
expect(mediaSourceEngine.segments).toEqual({
|
|
audio: [true, true, true, true],
|
|
video: [false, false, false, true],
|
|
trickvideo: [false, false, false, false], // cleared
|
|
text: [true, true, true, true],
|
|
});
|
|
}
|
|
});
|
|
expect(mediaSourceEngine.endOfStream).toHaveBeenCalled();
|
|
});
|
|
});
|
|
|
|
describe('embedded emsg boxes', () => {
|
|
const emsgSegment = Uint8ArrayUtils.fromHex(
|
|
'0000003b656d736700000000666f6f3a6261723a637573746f6d646174617363' +
|
|
'68656d6500310000000001000000080000ffff0000000174657374');
|
|
const emsgObj = {
|
|
startTime: 8,
|
|
endTime: 0xffff + 8,
|
|
schemeIdUri: 'foo:bar:customdatascheme',
|
|
value: '1',
|
|
timescale: 1,
|
|
presentationTimeDelta: 8,
|
|
eventDuration: 0xffff,
|
|
id: 1,
|
|
messageData: new Uint8Array([0x74, 0x65, 0x73, 0x74]),
|
|
};
|
|
|
|
beforeEach(() => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
});
|
|
|
|
it('raises an event for registered embedded emsg boxes', async () => {
|
|
segmentData[ContentType.VIDEO].segments[0] = emsgSegment;
|
|
videoStream.emsgSchemeIdUris = [emsgObj.schemeIdUri];
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(onEvent).toHaveBeenCalledTimes(1);
|
|
|
|
const event = onEvent.calls.argsFor(0)[0];
|
|
expect(event.detail).toEqual(emsgObj);
|
|
});
|
|
|
|
it('raises multiple events', async () => {
|
|
const dummyBox =
|
|
shaka.util.Uint8ArrayUtils.fromHex('0000000c6672656501020304');
|
|
segmentData[ContentType.VIDEO].segments[0] =
|
|
shaka.util.Uint8ArrayUtils.concat(emsgSegment, dummyBox, emsgSegment);
|
|
videoStream.emsgSchemeIdUris = [emsgObj.schemeIdUri];
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(onEvent).toHaveBeenCalledTimes(2);
|
|
});
|
|
|
|
it('won\'t raise an event without stream field set', async () => {
|
|
segmentData[ContentType.VIDEO].segments[0] = emsgSegment;
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(onEvent).not.toHaveBeenCalled();
|
|
});
|
|
|
|
it('won\'t raise an event when no emsg boxes present', async () => {
|
|
videoStream.emsgSchemeIdUris = [emsgObj.schemeIdUri];
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(onEvent).not.toHaveBeenCalled();
|
|
});
|
|
|
|
it('won\'t raise an event for an unregistered emsg box', async () => {
|
|
segmentData[ContentType.VIDEO].segments[0] = emsgSegment;
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(onEvent).not.toHaveBeenCalled();
|
|
});
|
|
|
|
it('triggers manifest updates', async () => {
|
|
// This is an 'emsg' box that contains a scheme of
|
|
// urn:mpeg:dash:event:2012 to indicate a manifest update.
|
|
segmentData[ContentType.VIDEO].segments[0] =
|
|
Uint8ArrayUtils
|
|
.fromHex(
|
|
'0000003a656d73670000000075726e3a' +
|
|
'6d7065673a646173683a6576656e743a' +
|
|
'32303132000000000031000000080000' +
|
|
'00ff0000000c74657374');
|
|
videoStream.emsgSchemeIdUris = ['urn:mpeg:dash:event:2012'];
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
await runTest();
|
|
|
|
expect(onEvent).not.toHaveBeenCalled();
|
|
expect(onManifestUpdate).toHaveBeenCalled();
|
|
});
|
|
});
|
|
|
|
describe('network downgrading', () => {
|
|
/** @type {shaka.extern.Variant} */
|
|
let initialVariant;
|
|
/** @type {shaka.extern.Variant} */
|
|
let newVariant;
|
|
/** @type {!Array.<string>} */
|
|
let requestUris;
|
|
/** @type {!Array.<shaka.util.PublicPromise>} */
|
|
let delayedRequests;
|
|
/** @type {shaka.net.NetworkingEngine.PendingRequest} */
|
|
let lastPendingRequest;
|
|
/** @type {boolean} */
|
|
let shouldDelayRequests;
|
|
|
|
beforeEach(() => {
|
|
manifest = shaka.test.ManifestGenerator.generate((manifest) => {
|
|
manifest.presentationTimeline.setDuration(60);
|
|
manifest.addVariant(0, (variant) => {
|
|
variant.bandwidth = 500;
|
|
variant.addVideo(10, (stream) => {
|
|
stream.useSegmentTemplate(
|
|
'video-10-%d.mp4', /* segmentDuration= */ 10,
|
|
/* segmentSize= */ 50);
|
|
});
|
|
});
|
|
manifest.addVariant(1, (variant) => {
|
|
variant.bandwidth = 100;
|
|
variant.addVideo(11, (stream) => {
|
|
stream.useSegmentTemplate(
|
|
'video-11-%d.mp4', /* segmentDuration= */ 10,
|
|
/* segmentSize= */ 10);
|
|
});
|
|
});
|
|
});
|
|
|
|
initialVariant = manifest.variants[0];
|
|
newVariant = manifest.variants[1];
|
|
requestUris = [];
|
|
delayedRequests = [];
|
|
lastPendingRequest = null;
|
|
shouldDelayRequests = true;
|
|
playing = false;
|
|
presentationTimeInSeconds = 0;
|
|
|
|
// For these tests, we don't care about specific data appended.
|
|
// Just return any old ArrayBuffer for any requested segment.
|
|
netEngine = {
|
|
request: (requestType, request) => {
|
|
const buffer = new ArrayBuffer(0);
|
|
const response = {uri: request.uris[0], data: buffer, headers: {}};
|
|
const bytes = new shaka.net.NetworkingEngine.NumBytesRemainingClass();
|
|
bytes.setBytes(200);
|
|
|
|
const delay = new shaka.util.PublicPromise();
|
|
delayedRequests.push(delay);
|
|
|
|
const run = async () => {
|
|
shaka.log.v1('new request', request.uris[0]);
|
|
if (shouldDelayRequests) {
|
|
shaka.log.v1('delaying request', request.uris[0]);
|
|
await delay;
|
|
}
|
|
// Only add if the segment was appended; if it was aborted this
|
|
// won't be called.
|
|
shaka.log.v1('completing request', request.uris[0]);
|
|
requestUris.push(request.uris[0]);
|
|
return response;
|
|
};
|
|
|
|
const abort = () => {
|
|
shaka.log.v1('aborting request', request.uris[0]);
|
|
delay.reject(new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.PLAYER,
|
|
shaka.util.Error.Code.OPERATION_ABORTED));
|
|
return Promise.resolve();
|
|
};
|
|
|
|
lastPendingRequest = new shaka.net.NetworkingEngine.PendingRequest(
|
|
run(), abort, bytes);
|
|
spyOn(lastPendingRequest, 'abort').and.callThrough();
|
|
return lastPendingRequest;
|
|
},
|
|
};
|
|
|
|
// For these tests, we also don't need FakeMediaSourceEngine to verify
|
|
// its input data.
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine({});
|
|
mediaSourceEngine.bufferStart.and.returnValue(0);
|
|
mediaSourceEngine.clear.and.returnValue(Promise.resolve());
|
|
mediaSourceEngine.remove.and.returnValue(Promise.resolve());
|
|
mediaSourceEngine.setStreamProperties.and.returnValue(Promise.resolve());
|
|
|
|
// Naive buffered range tracking that only tracks the buffer end.
|
|
const bufferEnd = {audio: 0, video: 0, text: 0};
|
|
mediaSourceEngine.appendBuffer.and.callFake((type, data, start, end) => {
|
|
bufferEnd[type] = end;
|
|
return Promise.resolve();
|
|
});
|
|
mediaSourceEngine.bufferEnd.and.callFake((type) => bufferEnd[type]);
|
|
mediaSourceEngine.bufferedAheadOf.and.callFake(
|
|
(type, start) => Math.max(0, bufferEnd[type] - start));
|
|
mediaSourceEngine.isBuffered.and.callFake(
|
|
(type, time) => time >= 0 && time < bufferEnd[type]);
|
|
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.bufferingGoal = 30;
|
|
config.retryParameters.maxAttempts = 1;
|
|
createStreamingEngine(config);
|
|
|
|
getBandwidthEstimate.and.returnValue(1); // very slow by default
|
|
});
|
|
|
|
it('aborts pending requests', async () => {
|
|
await prepareForAbort();
|
|
|
|
/** @type {shaka.net.NetworkingEngine.PendingRequest} */
|
|
const secondRequest = lastPendingRequest;
|
|
|
|
// This should abort the pending request for the second segment.
|
|
streamingEngine.switchVariant(
|
|
newVariant, /* clear_buffer= */ false, /* safe_margin= */ 0);
|
|
|
|
await bufferAndCheck(/* didAbort= */ true);
|
|
|
|
expect(secondRequest.abort).toHaveBeenCalled();
|
|
});
|
|
|
|
it('still aborts if previous segment size unknown', async () => {
|
|
// This should use the "bytes remaining" from the request instead of the
|
|
// previous stream's size.
|
|
const videoStream = manifest.variants[0].video;
|
|
await videoStream.createSegmentIndex();
|
|
const segmentIndex = videoStream.segmentIndex;
|
|
const oldGet = segmentIndex.get;
|
|
videoStream.segmentIndex.get = (idx) => {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
const seg = oldGet.call(segmentIndex, idx);
|
|
if (seg) {
|
|
// With endByte being null, we won't know the segment size.
|
|
return new shaka.media.SegmentReference(
|
|
seg.startTime, seg.endTime, seg.getUris,
|
|
/* startByte= */ 0, /* endByte= */ null,
|
|
/* initSegmentReference= */ null, /* timestampOffset= */ 0,
|
|
/* appendWindowStart= */ 0, /* appendWindowEnd= */ Infinity);
|
|
} else {
|
|
return seg;
|
|
}
|
|
};
|
|
|
|
await prepareForAbort();
|
|
streamingEngine.switchVariant(
|
|
newVariant, /* clear_buffer= */ false, /* safe_margin= */ 0);
|
|
|
|
await bufferAndCheck(/* didAbort= */ true);
|
|
});
|
|
|
|
it('doesn\'t abort if close to finished', async () => {
|
|
await prepareForAbort();
|
|
setBytesRemaining(3);
|
|
streamingEngine.switchVariant(
|
|
newVariant, /* clear_buffer= */ false, /* safe_margin= */ 0);
|
|
|
|
await bufferAndCheck(/* didAbort= */ false);
|
|
});
|
|
|
|
it('doesn\'t abort if init segment is too large', async () => {
|
|
const initSegmentReference =
|
|
new shaka.media.InitSegmentReference(() => ['init-11.mp4'], 0, 500);
|
|
await newVariant.video.createSegmentIndex();
|
|
overrideInitSegment(newVariant.video, initSegmentReference);
|
|
|
|
await prepareForAbort();
|
|
streamingEngine.switchVariant(
|
|
newVariant, /* clear_buffer= */ false, /* safe_margin= */ 0);
|
|
|
|
await bufferAndCheck(/* didAbort= */ false, /* hasInit= */ true);
|
|
});
|
|
|
|
it('still aborts with small init segment', async () => {
|
|
const initSegmentReference =
|
|
new shaka.media.InitSegmentReference(() => ['init-11.mp4'], 0, 5);
|
|
await newVariant.video.createSegmentIndex();
|
|
overrideInitSegment(newVariant.video, initSegmentReference);
|
|
|
|
await prepareForAbort();
|
|
streamingEngine.switchVariant(
|
|
newVariant, /* clear_buffer= */ false, /* safe_margin= */ 0);
|
|
|
|
await bufferAndCheck(/* didAbort= */ true, /* hasInit= */ true);
|
|
});
|
|
|
|
it('aborts if we can finish the new one on time', async () => {
|
|
// Very large init segment
|
|
const initSegmentReference =
|
|
new shaka.media.InitSegmentReference(() => ['init-11.mp4'], 0, 5e6);
|
|
await newVariant.video.createSegmentIndex();
|
|
overrideInitSegment(newVariant.video, initSegmentReference);
|
|
|
|
await prepareForAbort();
|
|
|
|
setBytesRemaining(3); // not much left
|
|
getBandwidthEstimate.and.returnValue(1e9); // insanely fast
|
|
|
|
streamingEngine.switchVariant(
|
|
newVariant, /* clear_buffer= */ false, /* safe_margin= */ 0);
|
|
|
|
await bufferAndCheck(/* didAbort= */ true, /* hasInit= */ true);
|
|
});
|
|
|
|
it('aborts pending requests after fetching new segment index', async () => {
|
|
await prepareForAbort();
|
|
|
|
/** @type {shaka.net.NetworkingEngine.PendingRequest} */
|
|
const secondRequest = lastPendingRequest;
|
|
|
|
// Simulate a segment index which is not yet available. This is
|
|
// necessary because the fake content used in this test is in the style
|
|
// of a segment template, where the index is already known.
|
|
const segmentIndex = newVariant.video.segmentIndex;
|
|
expect(segmentIndex).not.toBe(null);
|
|
newVariant.video.segmentIndex = null;
|
|
newVariant.video.createSegmentIndex = () => {
|
|
newVariant.video.segmentIndex = segmentIndex;
|
|
return Promise.resolve();
|
|
};
|
|
|
|
// This should abort the pending request for the second segment.
|
|
streamingEngine.switchVariant(newVariant);
|
|
|
|
await bufferAndCheck(/* didAbort= */ true);
|
|
|
|
expect(secondRequest.abort).toHaveBeenCalled();
|
|
});
|
|
|
|
it('still aborts if new segment size unknown', async () => {
|
|
const videoStream = manifest.variants[1].video;
|
|
videoStream.bandwidth = 10;
|
|
await videoStream.createSegmentIndex();
|
|
const segmentIndex = videoStream.segmentIndex;
|
|
const oldGet = segmentIndex.get;
|
|
videoStream.segmentIndex.get = (idx) => {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
const seg = oldGet.call(segmentIndex, idx);
|
|
if (seg) {
|
|
// With endByte being null, we won't know the segment size.
|
|
// Segment size has to be calculated with times and bandwidth.
|
|
return new shaka.media.SegmentReference(
|
|
seg.startTime, seg.endTime, seg.getUris,
|
|
/* startByte= */ 0, /* endByte= */ null,
|
|
/* initSegmentReference= */ null, /* timestampOffset= */ 0,
|
|
/* appendWindowStart= */ 0, /* appendWindowEnd= */ Infinity);
|
|
} else {
|
|
return seg;
|
|
}
|
|
};
|
|
|
|
await prepareForAbort();
|
|
streamingEngine.switchVariant(
|
|
newVariant, /* clear_buffer= */ false, /* safe_margin= */ 0);
|
|
|
|
await bufferAndCheck(/* didAbort= */ true);
|
|
});
|
|
|
|
function flushDelayedRequests() {
|
|
for (const delay of delayedRequests) {
|
|
delay.resolve();
|
|
}
|
|
delayedRequests = [];
|
|
}
|
|
|
|
/**
|
|
* Creates and starts the StreamingEngine instance. After this returns,
|
|
* it should be waiting for the second segment request to complete.
|
|
*/
|
|
async function prepareForAbort() {
|
|
streamingEngine.switchVariant(initialVariant);
|
|
streamingEngine.start().catch(fail);
|
|
playing = true;
|
|
await Util.fakeEventLoop(1);
|
|
|
|
// Finish the first segment request.
|
|
shaka.log.v1('continuing initial request');
|
|
flushDelayedRequests();
|
|
await Util.fakeEventLoop(10);
|
|
|
|
// We should have buffered the first segment.
|
|
expect(Util.invokeSpy(mediaSourceEngine.bufferEnd, 'video')).toBe(10);
|
|
|
|
// Confirm that the first segment is buffered.
|
|
expect(requestUris).toEqual(['video-10-0.mp4']);
|
|
}
|
|
|
|
/**
|
|
* Buffers to the buffering goal and checks the correct segment requests
|
|
* were made.
|
|
* @param {boolean} didAbort
|
|
* @param {boolean=} hasInit
|
|
*/
|
|
async function bufferAndCheck(didAbort, hasInit) {
|
|
// Wait long enough for the abort() call take place.
|
|
await Util.fakeEventLoop(1);
|
|
|
|
shaka.log.v1('continuing delayed request, unblocking future requests');
|
|
shouldDelayRequests = false;
|
|
flushDelayedRequests();
|
|
await Util.fakeEventLoop(3);
|
|
|
|
expect(Util.invokeSpy(mediaSourceEngine.bufferEnd, 'video')).toBe(30);
|
|
const expected = ['video-10-0.mp4'];
|
|
if (!didAbort) {
|
|
expected.push('video-10-1.mp4');
|
|
}
|
|
if (hasInit) {
|
|
expected.push('init-11.mp4');
|
|
}
|
|
if (didAbort) {
|
|
expected.push('video-11-1.mp4');
|
|
}
|
|
expected.push('video-11-2.mp4');
|
|
expect(requestUris).toEqual(expected);
|
|
}
|
|
|
|
/**
|
|
* Sets the number of bytes remaining on the pending network request.
|
|
*
|
|
* @param {number} bytes
|
|
* @suppress {accessControls}
|
|
*/
|
|
function setBytesRemaining(bytes) {
|
|
lastPendingRequest.bytesRemaining_.setBytes(bytes);
|
|
}
|
|
});
|
|
|
|
describe('embedded text tracks', () => {
|
|
/** @type {!jasmine.Spy} */
|
|
let onTick;
|
|
|
|
/** @type {shaka.extern.Stream} */
|
|
let externalTextStream;
|
|
|
|
/** @type {shaka.extern.Stream} */
|
|
let embeddedTextStream;
|
|
|
|
beforeEach(() => {
|
|
manifest = shaka.test.ManifestGenerator.generate((manifest) => {
|
|
manifest.addVariant(0, (variant) => {
|
|
variant.addVideo(1, (stream) => {
|
|
stream.useSegmentTemplate('video-110-%d.mp4', 10);
|
|
});
|
|
});
|
|
manifest.addTextStream(2, (stream) => {
|
|
stream.useSegmentTemplate('video-120-%d.mp4', 10);
|
|
});
|
|
manifest.addTextStream(3, (stream) => {
|
|
stream.mimeType = shaka.util.MimeUtils.CLOSED_CAPTION_MIMETYPE;
|
|
});
|
|
});
|
|
|
|
// Capture the stream objects from the generated manifest by ID.
|
|
externalTextStream = manifest.textStreams.filter((s) => s.id == 2)[0];
|
|
goog.asserts.assert(
|
|
externalTextStream, 'Should have found external text!');
|
|
embeddedTextStream = manifest.textStreams.filter((s) => s.id == 3)[0];
|
|
goog.asserts.assert(
|
|
embeddedTextStream, 'Should have found embedded text!');
|
|
|
|
// For these tests, we don't care about specific data appended.
|
|
// Just return any old ArrayBuffer for any requested segment.
|
|
netEngine = {
|
|
request: (requestType, request) => {
|
|
const buffer = new ArrayBuffer(0);
|
|
const response = {uri: request.uris[0], data: buffer, headers: {}};
|
|
return shaka.util.AbortableOperation.completed(response);
|
|
},
|
|
};
|
|
|
|
// For these tests, we also don't need FakeMediaSourceEngine to verify
|
|
// its input data.
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine({});
|
|
mediaSourceEngine.clear.and.returnValue(Promise.resolve());
|
|
mediaSourceEngine.bufferedAheadOf.and.returnValue(0);
|
|
mediaSourceEngine.bufferStart.and.returnValue(0);
|
|
mediaSourceEngine.setStreamProperties.and.returnValue(Promise.resolve());
|
|
mediaSourceEngine.remove.and.returnValue(Promise.resolve());
|
|
mediaSourceEngine.setSelectedClosedCaptionId =
|
|
/** @type {?} */ (jasmine.createSpy('setSelectedClosedCaptionId'));
|
|
|
|
const bufferEnd = {audio: 0, video: 0, text: 0};
|
|
mediaSourceEngine.appendBuffer.and.callFake(
|
|
(type, data, start, end) => {
|
|
bufferEnd[type] = end;
|
|
return Promise.resolve();
|
|
});
|
|
mediaSourceEngine.bufferEnd.and.callFake((type) => {
|
|
return bufferEnd[type];
|
|
});
|
|
mediaSourceEngine.bufferedAheadOf.and.callFake((type, start) => {
|
|
return Math.max(0, bufferEnd[type] - start);
|
|
});
|
|
mediaSourceEngine.isBuffered.and.callFake((type, time) => {
|
|
return time >= 0 && time < bufferEnd[type];
|
|
});
|
|
|
|
const config = shaka.util.PlayerConfiguration.createDefault().streaming;
|
|
config.rebufferingGoal = 20;
|
|
config.bufferingGoal = 20;
|
|
config.alwaysStreamText = true;
|
|
config.ignoreTextStreamFailures = true;
|
|
|
|
playing = false;
|
|
presentationTimeInSeconds = 0;
|
|
createStreamingEngine(config);
|
|
|
|
// Each test will switch text streams to simulate various activities, but
|
|
// all will use this variant.
|
|
streamingEngine.switchVariant(manifest.variants[0]);
|
|
|
|
onTick = jasmine.createSpy('onTick');
|
|
});
|
|
|
|
it('initializes embedded captions after nothing', async () => {
|
|
// Start without text.
|
|
streamingEngine.start().catch(fail);
|
|
playing = true;
|
|
|
|
onTick.and.callFake(() => {
|
|
// Switch to embedded text.
|
|
streamingEngine.switchTextStream(embeddedTextStream);
|
|
|
|
onTick.and.stub();
|
|
});
|
|
|
|
await Util.fakeEventLoop(10, (time) => Util.invokeSpy(onTick));
|
|
|
|
// We have buffered through the Period transition.
|
|
expect(Util.invokeSpy(mediaSourceEngine.bufferEnd, 'video'))
|
|
.toBeGreaterThan(12);
|
|
|
|
expect(mediaSourceEngine.setSelectedClosedCaptionId)
|
|
.toHaveBeenCalledTimes(1);
|
|
});
|
|
|
|
it('initializes embedded captions after external text', async () => {
|
|
// Start with external text.
|
|
streamingEngine.switchTextStream(externalTextStream);
|
|
streamingEngine.start().catch(fail);
|
|
playing = true;
|
|
|
|
onTick.and.callFake(() => {
|
|
// Switch to embedded text.
|
|
streamingEngine.switchTextStream(embeddedTextStream);
|
|
|
|
onTick.and.stub();
|
|
});
|
|
|
|
await Util.fakeEventLoop(10, (time) => Util.invokeSpy(onTick));
|
|
|
|
// We have buffered through the Period transition.
|
|
expect(Util.invokeSpy(mediaSourceEngine.bufferEnd, 'video'))
|
|
.toBeGreaterThan(12);
|
|
|
|
expect(mediaSourceEngine.setSelectedClosedCaptionId)
|
|
.toHaveBeenCalledTimes(1);
|
|
});
|
|
|
|
it('switches to external text after embedded captions', async () => {
|
|
// Start with embedded text.
|
|
streamingEngine.switchTextStream(embeddedTextStream);
|
|
streamingEngine.start().catch(fail);
|
|
playing = true;
|
|
|
|
onTick.and.callFake(() => {
|
|
// Switch to external text.
|
|
streamingEngine.switchTextStream(externalTextStream);
|
|
|
|
onTick.and.stub();
|
|
});
|
|
|
|
await Util.fakeEventLoop(10, (time) => Util.invokeSpy(onTick));
|
|
|
|
// We have buffered through the Period transition.
|
|
expect(Util.invokeSpy(mediaSourceEngine.bufferEnd, 'video'))
|
|
.toBeGreaterThan(12);
|
|
|
|
expect(mediaSourceEngine.setSelectedClosedCaptionId)
|
|
.toHaveBeenCalledTimes(1);
|
|
});
|
|
|
|
it('plays embedded text throughout', async () => {
|
|
// Start with embedded text.
|
|
streamingEngine.switchTextStream(embeddedTextStream);
|
|
streamingEngine.start().catch(fail);
|
|
playing = true;
|
|
|
|
await Util.fakeEventLoop(10, (time) => Util.invokeSpy(onTick));
|
|
|
|
// We have buffered through the Period transition.
|
|
expect(Util.invokeSpy(mediaSourceEngine.bufferEnd, 'video'))
|
|
.toBeGreaterThan(12);
|
|
|
|
expect(mediaSourceEngine.setSelectedClosedCaptionId)
|
|
.toHaveBeenCalledTimes(1);
|
|
});
|
|
});
|
|
|
|
it('calls createSegmentIndex on demand', async () => {
|
|
setupVod();
|
|
mediaSourceEngine = new shaka.test.FakeMediaSourceEngine(segmentData);
|
|
createStreamingEngine();
|
|
|
|
// None of the streams have been set up yet because we haven't started yet.
|
|
expect(audioStream.createSegmentIndex).not.toHaveBeenCalled();
|
|
expect(videoStream.createSegmentIndex).not.toHaveBeenCalled();
|
|
expect(alternateVideoStream.createSegmentIndex).not.toHaveBeenCalled();
|
|
|
|
// Here we go!
|
|
streamingEngine.switchVariant(variant);
|
|
streamingEngine.switchTextStream(textStream);
|
|
await streamingEngine.start();
|
|
playing = true;
|
|
|
|
await runTest(() => {
|
|
if (presentationTimeInSeconds == 1) {
|
|
// Once we're streaming, the audio & video streams have been set up.
|
|
expect(audioStream.createSegmentIndex).toHaveBeenCalled();
|
|
expect(videoStream.createSegmentIndex).toHaveBeenCalled();
|
|
|
|
// But not this alternate video stream.
|
|
expect(alternateVideoStream.createSegmentIndex).not.toHaveBeenCalled();
|
|
}
|
|
});
|
|
|
|
// Because we never switched to this stream, it was never set up at any time
|
|
// during this simulated playback.
|
|
expect(alternateVideoStream.createSegmentIndex).not.toHaveBeenCalled();
|
|
});
|
|
|
|
/**
|
|
* Slides the segment availability window forward by 1 second.
|
|
*/
|
|
function slideSegmentAvailabilityWindow() {
|
|
timeline.segmentAvailabilityStart++;
|
|
timeline.segmentAvailabilityEnd++;
|
|
}
|
|
|
|
/**
|
|
* @param {!Object} netEngine A NetworkingEngine look-alike from
|
|
* shaka.test.StreamingEngineUtil.createFakeNetworkingEngine()
|
|
* @param {string} targetUri
|
|
* @param {shaka.util.Error.Code} errorCode
|
|
*/
|
|
function failFirstRequestForTarget(netEngine, targetUri, errorCode) {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
const originalNetEngineRequest = netEngine.request.bind(netEngine);
|
|
|
|
netEngine.attempts = 0;
|
|
netEngine.request = jasmine.createSpy('request').and.callFake(
|
|
(requestType, request) => {
|
|
if (request.uris[0] == targetUri) {
|
|
if (++netEngine.attempts == 1) {
|
|
const data = [targetUri];
|
|
|
|
if (errorCode == shaka.util.Error.Code.BAD_HTTP_STATUS) {
|
|
data.push(404);
|
|
data.push('');
|
|
}
|
|
|
|
return shaka.util.AbortableOperation.failed(new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.NETWORK,
|
|
errorCode, data));
|
|
}
|
|
}
|
|
return originalNetEngineRequest(requestType, request);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Override the init segment on all segment references for this Stream.
|
|
*
|
|
* @param {?shaka.extern.Stream} stream
|
|
* @param {shaka.media.InitSegmentReference} initSegmentReference
|
|
*/
|
|
function overrideInitSegment(stream, initSegmentReference) {
|
|
if (!stream) {
|
|
return;
|
|
}
|
|
|
|
const originalGet = stream.segmentIndex.get;
|
|
stream.segmentIndex.get = (position) => {
|
|
// eslint-disable-next-line no-restricted-syntax
|
|
const segmentReference = originalGet.call(stream.segmentIndex, position);
|
|
if (segmentReference) {
|
|
segmentReference.initSegmentReference = initSegmentReference;
|
|
}
|
|
return segmentReference;
|
|
};
|
|
}
|
|
});
|