shaka-player
Version:
DASH/EME video player library
355 lines (324 loc) • 11.3 kB
JavaScript
/**
* @license
* Copyright 2016 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
describe('ManifestTextParser', function() {
/** @type {!shaka.hls.ManifestTextParser} */
var parser;
beforeEach(function() {
parser = new shaka.hls.ManifestTextParser();
});
describe('parsePlaylist', function() {
it('rejects invalid playlists', function() {
verifyError('invalid playlist',
shaka.util.Error.Code.HLS_PLAYLIST_HEADER_MISSING);
// This Master playlist is invalid cause it contains a segment tag.
// All segmnent information should be in a Media playlist.
verifyError('#EXTM3U\n' +
'#EXT-X-MEDIA:TYPE=AUDIO\n' +
'#EXTINF:6.00600',
shaka.util.Error.Code.HLS_INVALID_PLAYLIST_HIERARCHY);
});
it('parses a Media Playlist', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-TARGETDURATION', [], '6')
]
},
'#EXTM3U\n' +
'#EXT-X-TARGETDURATION:6\n');
});
it('parses a Master Playlist', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-TARGETDURATION', [], '6'),
new shaka.hls.Tag(/* id */ 1, 'EXT-X-STREAM-INF',
[
new shaka.hls.Attribute('BANDWIDTH', '2165224'),
new shaka.hls.Attribute('URI', 'prog_index.m3u8')
])
]
},
'#EXTM3U\n' +
'#EXT-X-TARGETDURATION:6\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=2165224\n' +
'prog_index.m3u8');
});
it('ignores comments', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-TARGETDURATION', [], '6')
]
},
'#EXTM3U\n' +
'#Comment\n' +
'#EXT-X-TARGETDURATION:6');
});
/**
* @param {!string} string
* @param {shaka.util.Error.Code} code
*/
function verifyError(string, code) {
var data = shaka.util.StringUtils.toUTF8(string);
var error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.MANIFEST,
code);
try {
parser.parsePlaylist(data, /* uri */ '');
fail('Invalid HLS playlist should not be supported!');
} catch (e) {
shaka.test.Util.expectToEqualError(e, error);
}
}
});
describe('parseTag', function() {
it('parses tags with no attributes', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MASTER,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-INDEPENDENT-SEGMENTS', [])
]
},
'#EXTM3U\n' +
'#EXT-X-INDEPENDENT-SEGMENTS');
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 1, 'EXT-X-PLAYLIST-TYPE', [], 'VOD')
]
},
'#EXTM3U\n' +
'#EXT-X-PLAYLIST-TYPE:VOD');
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 2, 'EXT-X-MEDIA-SEQUENCE', [], '1')
]
},
'#EXTM3U\n' +
'#EXT-X-MEDIA-SEQUENCE:1');
});
it('parses tags with attributes', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MASTER,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-MEDIA',
[new shaka.hls.Attribute('TYPE', 'CLOSED-CAPTIONS')])
]
},
'#EXTM3U\n' +
'#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS');
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MASTER,
tags: [
new shaka.hls.Tag(/* id */ 1, 'EXT-X-MEDIA',
[
new shaka.hls.Attribute('URI', 'main.mp4'),
new shaka.hls.Attribute('BYTERANGE', '720@0')
])
]
},
'#EXTM3U\n' +
'#EXT-X-MEDIA:URI="main.mp4",BYTERANGE="720@0"');
});
it('parses tags with commas in attribute values', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MASTER,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-MEDIA',
[
new shaka.hls.Attribute('CODECS', 'avc1.64002a,mp4a.40.2')
])
]
},
'#EXTM3U\n' +
'#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2"');
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MASTER,
tags: [
new shaka.hls.Tag(/* id */ 1, 'EXT-X-MEDIA',
[
new shaka.hls.Attribute('CODECS',
'avc1.64002a,mp4a.40.2,avc2.64000')
])
]
},
'#EXTM3U\n' +
'#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2,avc2.64000"');
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MASTER,
tags: [
new shaka.hls.Tag(/* id */ 2, 'EXT-X-MEDIA',
[
new shaka.hls.Attribute('CODECS',
'avc1.64002a,mp4a.40.2'),
new shaka.hls.Attribute('AUDIO', 'a1,a2')
])
]
},
'#EXTM3U\n' +
'#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2",AUDIO="a1,a2"');
});
it('rejects invalid tags', function() {
var error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.MANIFEST,
shaka.util.Error.Code.INVALID_HLS_TAG);
var text = shaka.util.StringUtils.toUTF8('#EXTM3U\ninvalid tag');
try {
parser.parsePlaylist(text, /* uri */ '');
fail('Invalid HLS tags should not be supported!');
} catch (e) {
shaka.test.Util.expectToEqualError(e, error);
}
});
});
describe('tag.toString', function() {
it('recreates valid tag with attributes', function() {
var text = '#EXT-X-MEDIA:CODECS="avc1.64002a,mp4a.40.2",AUDIO="a1,a2"';
var tag = shaka.hls.ManifestTextParser.parseTag(0, text);
expect(text).toEqual(tag.toString());
});
it('recreates valid tag with value', function() {
var text = '#EXT-X-PLAYLIST-TYPE:VOD';
var tag = shaka.hls.ManifestTextParser.parseTag(0, text);
expect(text).toEqual(tag.toString());
});
it('recreates valid tag with no value', function() {
var text = '#EXTM3U';
var tag = shaka.hls.ManifestTextParser.parseTag(0, text);
expect(text).toEqual(tag.toString());
});
});
describe('parseSegments', function() {
it('parses segments', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-MEDIA-SEQUENCE', [], '1')
],
segments: [
new shaka.hls.Segment('https://test/test.mp4',
[
new shaka.hls.Tag(/* id */ 2, 'EXTINF', [], '5.99467')
])
]
},
'#EXTM3U\n' +
'#EXT-X-MEDIA-SEQUENCE:1\n' +
'#EXTINF:5.99467\n' +
'https://test/test.mp4\n');
});
it('tracks playlist URI', function() {
verifyPlaylist(
{
uri: 'https://test/manifest.m3u8',
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-MEDIA-SEQUENCE', [], '1')
],
segments: [
new shaka.hls.Segment('test.mp4',
[
new shaka.hls.Tag(/* id */ 2, 'EXTINF', [], '5.99467')
])
]
},
// playlist text:
'#EXTM3U\n' +
'#EXT-X-MEDIA-SEQUENCE:1\n' +
'#EXTINF:5.99467\n' +
'test.mp4\n',
// manifest URI:
'https://test/manifest.m3u8');
});
});
describe('parseSegments', function() {
var manifestText = '#EXTM3U\n' +
'#EXT-X-TARGETDURATION:6\n' +
'#EXTINF:5\n' +
'uri\n' +
'#EXTINF:4\n' +
'uri2\n';
it('parses segments', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-TARGETDURATION', [], '6')
],
segments: [
new shaka.hls.Segment('uri',
[new shaka.hls.Tag(2, 'EXTINF', [], '5')]),
new shaka.hls.Segment('uri2',
[new shaka.hls.Tag(3, 'EXTINF', [], '4')])
]
},
manifestText);
});
it('identifies playlist tags', function() {
verifyPlaylist(
{
type: shaka.hls.PlaylistType.MEDIA,
tags: [
new shaka.hls.Tag(/* id */ 0, 'EXT-X-TARGETDURATION', [], '6'),
new shaka.hls.Tag(/* id */ 4, 'EXT-X-ENDLIST', [])
],
segments: [
new shaka.hls.Segment('uri',
[new shaka.hls.Tag(2, 'EXTINF', [], '5')]),
new shaka.hls.Segment('uri2',
[new shaka.hls.Tag(3, 'EXTINF', [], '4')])
]
},
// Append a playlist tag to the manifest text so it appears after
// segment-related tags.
manifestText + '#EXT-X-ENDLIST');
});
});
/**
* @param {Object} expectedPlaylist
* @param {string} playlistText
* @param {string=} opt_manifestUri
*/
function verifyPlaylist(expectedPlaylist, playlistText, opt_manifestUri) {
var manifestUri = opt_manifestUri || '';
var playlistBuffer = shaka.util.StringUtils.toUTF8(playlistText);
var actualPlaylist = parser.parsePlaylist(playlistBuffer, manifestUri);
expect(actualPlaylist).toBeTruthy();
expect(actualPlaylist.type).toEqual(expectedPlaylist.type);
expect(actualPlaylist.tags).toEqual(expectedPlaylist.tags);
if (expectedPlaylist.segments)
expect(actualPlaylist.segments).toEqual(expectedPlaylist.segments);
if (expectedPlaylist.uri)
expect(actualPlaylist.uri).toEqual(expectedPlaylist.uri);
}
});