mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-20 16:57:25 +03:00
michellezhuo
965ef453b6
Changed SegmentIndex and SegmentIterator to iterate through regular and Partial SegmentReferences. SegmentIndex: merge(): Find all the old segments after the first new segment's start time, and replace the old ones with new segments. SegmentIterator: Use the currentPosition and currentPartialPosition pointers to iterate through the two-layer arrays. current(): Get the current SegmentReference, and get its current Partial SegmentReference if it has a Partial Segment list. Move to the next regular segment if we reached the end of the current segment's partial list. next(): If the regular segment has a partial list, go to the next Partial Segment. If reached the end of the current partial list, move to the next regular segment. If the regular segment doesn't have a partial list, move to the next regular segment. Issue #1525 Change-Id: Icb7f49e50314f15ea40bf3a74d008191ed1a9a6c
523 lines
16 KiB
JavaScript
523 lines
16 KiB
JavaScript
/*! @license
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* Shaka Player
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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('ManifestTextParser', () => {
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/** @type {!shaka.hls.ManifestTextParser} */
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let parser;
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beforeEach(() => {
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parser = new shaka.hls.ManifestTextParser();
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});
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describe('parsePlaylist', () => {
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it('rejects invalid playlists', () => {
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verifyError('invalid playlist',
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shaka.util.Error.Code.HLS_PLAYLIST_HEADER_MISSING);
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// This Master playlist is invalid cause it contains a segment tag.
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// All segment information should be in a Media playlist.
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verifyError('#EXTM3U\n' +
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'#EXT-X-MEDIA:TYPE=AUDIO\n' +
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'#EXTINF:6.00600',
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shaka.util.Error.Code.HLS_INVALID_PLAYLIST_HIERARCHY);
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});
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it('parses a Media Playlist', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-TARGETDURATION', [], '6'),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-TARGETDURATION:6\n',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('parses a Master Playlist', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-TARGETDURATION', [], '6'),
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new shaka.hls.Tag(/* id= */ 1, 'EXT-X-STREAM-INF',
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[
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new shaka.hls.Attribute('BANDWIDTH', '2165224'),
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new shaka.hls.Attribute('URI', 'prog_index.m3u8'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-TARGETDURATION:6\n' +
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'#EXT-X-STREAM-INF:BANDWIDTH=2165224\n' +
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'prog_index.m3u8',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('ignores comments', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-TARGETDURATION', [], '6'),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#Comment\n' +
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'#EXT-X-TARGETDURATION:6',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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/**
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* @param {string} string
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* @param {shaka.util.Error.Code} code
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*/
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function verifyError(string, code) {
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const data = shaka.util.StringUtils.toUTF8(string);
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const error = shaka.test.Util.jasmineError(new shaka.util.Error(
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shaka.util.Error.Severity.CRITICAL,
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shaka.util.Error.Category.MANIFEST,
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code));
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expect(() => parser.parsePlaylist(data, /* uri= */ '')).toThrow(error);
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}
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});
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describe('parseTag', () => {
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it('parses tags with no attributes', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MASTER,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-INDEPENDENT-SEGMENTS', []),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-INDEPENDENT-SEGMENTS',
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// manifest URI:
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'https://test/manifest.m3u8');
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 1, 'EXT-X-PLAYLIST-TYPE', [], 'VOD'),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-PLAYLIST-TYPE:VOD',
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// manifest URI:
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'https://test/manifest.m3u8');
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 2, 'EXT-X-MEDIA-SEQUENCE', [], '1'),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA-SEQUENCE:1',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('parses tags with attributes', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MASTER,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-MEDIA',
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[new shaka.hls.Attribute('TYPE', 'CLOSED-CAPTIONS')]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS',
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// manifest URI:
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'https://test/manifest.m3u8');
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MASTER,
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tags: [
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new shaka.hls.Tag(/* id= */ 1, 'EXT-X-MEDIA',
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[
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new shaka.hls.Attribute('URI', 'main.mp4'),
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new shaka.hls.Attribute('BYTERANGE', '720@0'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA:URI="main.mp4",BYTERANGE="720@0"',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('parses tags with commas in attribute values', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MASTER,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-MEDIA',
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[
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new shaka.hls.Attribute('CODECS', 'avc1.64002a,mp4a.40.2'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2"',
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// manifest URI:
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'https://test/manifest.m3u8');
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MASTER,
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tags: [
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new shaka.hls.Tag(/* id= */ 1, 'EXT-X-MEDIA',
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[
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new shaka.hls.Attribute('CODECS',
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'avc1.64002a,mp4a.40.2,avc2.64000'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2,avc2.64000"',
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// manifest URI:
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'https://test/manifest.m3u8');
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MASTER,
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tags: [
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new shaka.hls.Tag(/* id= */ 2, 'EXT-X-MEDIA',
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[
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new shaka.hls.Attribute('CODECS',
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'avc1.64002a,mp4a.40.2'),
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new shaka.hls.Attribute('AUDIO', 'a1,a2'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2",AUDIO="a1,a2"',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('rejects invalid tags', () => {
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const error = shaka.test.Util.jasmineError(new shaka.util.Error(
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shaka.util.Error.Severity.CRITICAL,
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shaka.util.Error.Category.MANIFEST,
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shaka.util.Error.Code.INVALID_HLS_TAG,
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'invalid tag'));
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const text = shaka.util.StringUtils.toUTF8('#EXTM3U\ninvalid tag');
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expect(() => parser.parsePlaylist(text, /* uri= */ '')).toThrow(error);
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});
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});
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describe('tag.toString', () => {
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it('recreates valid tag with attributes', () => {
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const text = '#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2",AUDIO="a1,a2"';
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const tag = shaka.hls.ManifestTextParser.parseTag(0, text);
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expect(text).toBe(tag.toString());
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});
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it('recreates valid tag with value', () => {
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const text = '#EXT-X-PLAYLIST-TYPE:VOD';
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const tag = shaka.hls.ManifestTextParser.parseTag(0, text);
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expect(text).toBe(tag.toString());
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});
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it('recreates valid tag with no value', () => {
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const text = '#EXTM3U';
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const tag = shaka.hls.ManifestTextParser.parseTag(0, text);
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expect(text).toBe(tag.toString());
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});
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it('recreates valid tag with both value and attributes', () => {
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const text = '#EXTINF:5.99467,pid=180';
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const tag = shaka.hls.ManifestTextParser.parseTag(0, text);
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expect(text).toBe(tag.toString());
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});
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});
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describe('parseSegments', () => {
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it('parses segments', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-MEDIA-SEQUENCE', [], '1'),
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],
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segments: [
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new shaka.hls.Segment('https://test/test.mp4',
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[
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new shaka.hls.Tag(/* id= */ 2, 'EXTINF', [], '5.99467'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA-SEQUENCE:1\n' +
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'#EXTINF:5.99467\n' +
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'https://test/test.mp4\n',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('handles tags with both value and attributes', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-MEDIA-SEQUENCE', [], '1'),
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],
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segments: [
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new shaka.hls.Segment('https://test/test.mp4',
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[
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new shaka.hls.Tag(
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/* id= */ 2,
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'EXTINF',
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[new shaka.hls.Attribute('pid', '180')],
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'5.99467'
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),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA-SEQUENCE:1\n' +
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'#EXTINF:5.99467,pid=180\n' +
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'https://test/test.mp4\n',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('handles manifests with a segment tag before a playlist tag', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 2, 'EXT-X-TARGETDURATION', [], '6'),
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],
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segments: [
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new shaka.hls.Segment('https://test/test.mp4',
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[
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new shaka.hls.Tag(/* id= */ 1, 'EXT-X-KEY',
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[
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new shaka.hls.Attribute('METHOD', 'AES-128'),
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new shaka.hls.Attribute('URI', 'http://key.com'),
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new shaka.hls.Attribute('IV', '123'),
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]),
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new shaka.hls.Tag(/* id= */ 3, 'EXTINF', [], '5.99467'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-KEY:METHOD="AES-128",URI="http://key.com",IV="123"\n' +
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'#EXT-X-TARGETDURATION:6\n' +
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'#EXTINF:5.99467\n' +
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'https://test/test.mp4\n',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('tracks playlist URI', () => {
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verifyPlaylist(
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{
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absoluteUri: 'https://test/manifest.m3u8',
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-MEDIA-SEQUENCE', [], '1'),
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],
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segments: [
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new shaka.hls.Segment('https://test/test.mp4',
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[
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new shaka.hls.Tag(/* id= */ 2, 'EXTINF', [], '5.99467'),
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]),
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],
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},
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// playlist text:
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'#EXTM3U\n' +
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'#EXT-X-MEDIA-SEQUENCE:1\n' +
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'#EXTINF:5.99467\n' +
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'test.mp4\n',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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});
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describe('parseSegments', () => {
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const manifestText = '#EXTM3U\n' +
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'#EXT-X-TARGETDURATION:6\n' +
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'#EXTINF:5\n' +
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'uri\n' +
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'#EXTINF:4\n' +
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'uri2\n';
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it('parses segments', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-TARGETDURATION', [], '6'),
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],
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segments: [
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new shaka.hls.Segment('https://test/uri',
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[new shaka.hls.Tag(2, 'EXTINF', [], '5')]),
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new shaka.hls.Segment('https://test/uri2',
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[new shaka.hls.Tag(3, 'EXTINF', [], '4')]),
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],
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},
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manifestText,
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('identifies playlist tags', () => {
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-TARGETDURATION', [], '6'),
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new shaka.hls.Tag(/* id= */ 4, 'EXT-X-ENDLIST', []),
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],
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segments: [
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new shaka.hls.Segment('https://test/uri',
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[new shaka.hls.Tag(2, 'EXTINF', [], '5')]),
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new shaka.hls.Segment('https://test/uri2',
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[new shaka.hls.Tag(3, 'EXTINF', [], '4')]),
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],
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},
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// Append a playlist tag to the manifest text so it appears after
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// segment-related tags.
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manifestText + '#EXT-X-ENDLIST',
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// manifest URI:
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'https://test/manifest.m3u8');
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});
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it('parses segments with partial segments', () => {
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const manifestTextWithPartialSegments = '#EXTM3U\n' +
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'#EXT-X-TARGETDURATION:6\n' +
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'#EXTINF:5\n' +
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'uri\n' +
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'#EXT-X-PART:DURATION=1,URI="uri2.1"\n' +
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'#EXT-X-PART:DURATION=1,URI="uri2.2"\n' +
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'#EXTINF:2\n' +
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'uri2\n' +
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'#EXT-X-PART:DURATION=1,URI="uri3.1"\n';
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const partialSegments1 = [
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new shaka.hls.Tag(/* id= */ 3, 'EXT-X-PART',
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[
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new shaka.hls.Attribute('DURATION', '1'),
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new shaka.hls.Attribute('URI', 'uri2.1'),
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]),
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new shaka.hls.Tag(/* id= */ 4, 'EXT-X-PART',
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[
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new shaka.hls.Attribute('DURATION', '1'),
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new shaka.hls.Attribute('URI', 'uri2.2'),
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]),
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];
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const partialSegments2 = [
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new shaka.hls.Tag(/* id= */ 6, 'EXT-X-PART',
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[
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new shaka.hls.Attribute('DURATION', '1'),
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new shaka.hls.Attribute('URI', 'uri3.1'),
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]),
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];
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verifyPlaylist(
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{
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type: shaka.hls.PlaylistType.MEDIA,
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tags: [
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new shaka.hls.Tag(/* id= */ 0, 'EXT-X-TARGETDURATION', [], '6'),
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],
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segments: [
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new shaka.hls.Segment(
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/* absoluteUri= */ 'https://test/uri',
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/* tags= */ [new shaka.hls.Tag(2, 'EXTINF', [], '5')]),
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new shaka.hls.Segment(
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/* absoluteUri= */ 'https://test/uri2',
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/* tags= */ [new shaka.hls.Tag(5, 'EXTINF', [], '2')],
|
|
/* partialSegments= */ partialSegments1),
|
|
new shaka.hls.Segment(
|
|
/* absoluteUri= */ '',
|
|
/* tags= */ [],
|
|
/* partialSegments= */ partialSegments2),
|
|
],
|
|
},
|
|
manifestTextWithPartialSegments,
|
|
// manifest URI:
|
|
'https://test/manifest.m3u8');
|
|
});
|
|
});
|
|
|
|
// TODO(#1672): Get a better type than "Object" here.
|
|
/**
|
|
* @param {!Object} expectedPlaylist
|
|
* @param {string} playlistText
|
|
* @param {string} absoluteManifestUri
|
|
*/
|
|
function verifyPlaylist(expectedPlaylist, playlistText, absoluteManifestUri) {
|
|
const playlistBuffer = shaka.util.StringUtils.toUTF8(playlistText);
|
|
const actualPlaylist =
|
|
parser.parsePlaylist(playlistBuffer, absoluteManifestUri);
|
|
|
|
expect(actualPlaylist).toEqual(jasmine.objectContaining(expectedPlaylist));
|
|
}
|
|
});
|