shaka-player
Version:
DASH/EME video player library
191 lines (174 loc) • 6.14 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('Mp4VttParser', function() {
/** @const */
var vttInitSegmentUri = '/base/test/test/assets/vtt-init.mp4';
/** @const */
var vttSegmentUri = '/base/test/test/assets/vtt-segment.mp4';
/** @const */
var vttSegSettingsUri = '/base/test/test/assets/vtt-segment-settings.mp4';
/** @const */
var vttSegNoDurationUri =
'/base/test/test/assets/vtt-segment-no-duration.mp4';
/** @const */
var audioInitSegmentUri = '/base/test/test/assets/sintel-audio-init.mp4';
/** @type {!ArrayBuffer} */
var vttInitSegment;
/** @type {!ArrayBuffer} */
var vttSegment;
/** @type {!ArrayBuffer} */
var vttSegSettings;
/** @type {!ArrayBuffer} */
var vttSegNoDuration;
/** @type {!ArrayBuffer} */
var audioInitSegment;
beforeAll(function(done) {
Promise.all([
shaka.test.Util.fetch(vttInitSegmentUri),
shaka.test.Util.fetch(vttSegmentUri),
shaka.test.Util.fetch(vttSegSettingsUri),
shaka.test.Util.fetch(vttSegNoDurationUri),
shaka.test.Util.fetch(audioInitSegmentUri)
]).then(function(responses) {
vttInitSegment = responses[0];
vttSegment = responses[1];
vttSegSettings = responses[2];
vttSegNoDuration = responses[3];
audioInitSegment = responses[4];
}).catch(fail).then(done);
});
it('parses init segment', function() {
new shaka.text.Mp4VttParser().parseInit(vttInitSegment);
});
it('parses media segment', function() {
var cues = [
{
start: 111.8,
end: 115.8,
payload: 'It has shed much innocent blood.\n'
},
{
start: 118,
end: 120,
payload:
'You\'re a fool for traveling alone,\nso completely unprepared.\n'
}
];
var parser = new shaka.text.Mp4VttParser();
parser.parseInit(vttInitSegment);
var time = {periodStart: 0, segmentStart: 0, segmentEnd: 0};
var result = parser.parseMedia(vttSegment, time);
verifyHelper(cues, result);
});
it('parses media segment containing settings', function() {
var Cue = shaka.text.Cue;
var cues = [
{
start: 111.8,
end: 115.8,
payload: 'It has shed much innocent blood.\n',
align: 'right',
size: 50,
position: 10
},
{
start: 118,
end: 120,
payload:
'You\'re a fool for traveling alone,\nso completely unprepared.\n',
writingDirection: Cue.writingDirection.VERTICAL_LEFT_TO_RIGHT,
line: 1
}
];
var parser = new shaka.text.Mp4VttParser();
parser.parseInit(vttInitSegment);
var time = {periodStart: 0, segmentStart: 0, segmentEnd: 0};
var result = parser.parseMedia(vttSegSettings, time);
verifyHelper(cues, result);
});
it('parses media segments without a sample duration', function() {
// Regression test for https://github.com/google/shaka-player/issues/919
var cues = [
{ start: 10, end: 11, payload: 'cue 10' },
{ start: 11, end: 12, payload: 'cue 11' },
{ start: 12, end: 13, payload: 'cue 12' },
{ start: 13, end: 14, payload: 'cue 13' },
{ start: 14, end: 15, payload: 'cue 14' },
{ start: 15, end: 16, payload: 'cue 15' },
{ start: 16, end: 17, payload: 'cue 16' },
{ start: 17, end: 18, payload: 'cue 17' },
{ start: 18, end: 19, payload: 'cue 18' },
{ start: 19, end: 20, payload: 'cue 19' }
];
var parser = new shaka.text.Mp4VttParser();
parser.parseInit(vttInitSegment);
var time = {periodStart: 0, segmentStart: 0, segmentEnd: 0};
var result = parser.parseMedia(vttSegNoDuration, time);
verifyHelper(cues, result);
});
it('accounts for offset', function() {
var cues = [
{
start: 121.8,
end: 125.8,
payload: 'It has shed much innocent blood.\n'
},
{
start: 128,
end: 130,
payload:
'You\'re a fool for traveling alone,\nso completely unprepared.\n'
}
];
var parser = new shaka.text.Mp4VttParser();
parser.parseInit(vttInitSegment);
var time = {periodStart: 10, segmentStart: 0, segmentEnd: 0};
var result = parser.parseMedia(vttSegment, time);
verifyHelper(cues, result);
});
it('rejects init segment with no vtt', function() {
var error = new shaka.util.Error(
shaka.util.Error.Severity.CRITICAL,
shaka.util.Error.Category.TEXT,
shaka.util.Error.Code.INVALID_MP4_VTT);
try {
new shaka.text.Mp4VttParser().parseInit(audioInitSegment);
fail('Mp4 file with no vtt supported');
} catch (e) {
shaka.test.Util.expectToEqualError(e, error);
}
});
function verifyHelper(expected, actual) {
expect(actual).toBeTruthy();
expect(actual.length).toBe(expected.length);
for (var i = 0; i < actual.length; i++) {
expect(actual[i].startTime).toBe(expected[i].start);
expect(actual[i].endTime).toBe(expected[i].end);
expect(actual[i].payload).toBe(expected[i].payload);
if ('line' in expected[i])
expect(actual[i].line).toBe(expected[i].line);
if ('writingDirection' in expected[i])
expect(actual[i].writingDirection).toBe(expected[i].writingDirection);
if ('textAlign' in expected[i])
expect(actual[i].textAlign).toBe(expected[i].textAlign);
if ('size' in expected[i])
expect(actual[i].size).toBe(expected[i].size);
if ('position' in expected[i])
expect(actual[i].position).toBe(expected[i].position);
}
}
});