mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-26 17:46:26 +03:00
Jacob Trimble
47daf49f31
This is an automated change to convert use of "function" functions to arrow functions. This doesn't change all uses of bind() that could be converted. This also doesn't remove all "function" functions. Change-Id: I40ac7d086bcef947a1be083359c8fd1d4499a9c3
385 lines
13 KiB
JavaScript
385 lines
13 KiB
JavaScript
/**
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* @license
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* Copyright 2016 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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describe('StreamUtils', () => {
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const filterStreamsByLanguageAndRole =
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shaka.util.StreamUtils.filterStreamsByLanguageAndRole;
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const filterVariantsByAudioChannelCount =
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shaka.util.StreamUtils.filterVariantsByAudioChannelCount;
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let manifest;
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describe('filterStreamsByLanguageAndRole', () => {
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it('chooses text streams in user\'s preferred language', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(1)
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.language('en')
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.addTextStream(2)
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.language('es')
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.addTextStream(3)
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.language('en')
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'en',
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'');
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expect(chosen.length).toBe(2);
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expect(chosen[0]).toBe(manifest.periods[0].textStreams[0]);
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expect(chosen[1]).toBe(manifest.periods[0].textStreams[2]);
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});
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it('chooses primary text streams', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(1)
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.addTextStream(2)
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.primary()
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.addTextStream(3)
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.primary()
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'en',
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'');
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expect(chosen.length).toBe(2);
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expect(chosen[0]).toBe(manifest.periods[0].textStreams[1]);
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expect(chosen[1]).toBe(manifest.periods[0].textStreams[2]);
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});
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it('chooses text streams in preferred language and role', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(1)
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.language('en')
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.roles(['main', 'commentary'])
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.addTextStream(2)
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.language('es')
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.addTextStream(3)
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.language('en')
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.roles(['caption'])
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'en',
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'main');
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expect(chosen.length).toBe(1);
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expect(chosen[0]).toBe(manifest.periods[0].textStreams[0]);
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});
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it('prefers no-role streams if there is no preferred role', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(0)
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.language('en')
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.roles(['commentary'])
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.addTextStream(1)
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.language('en')
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.addTextStream(2)
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.language('en')
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.roles(['secondary'])
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'en',
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'');
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expect(chosen.length).toBe(1);
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expect(chosen[0].roles.length).toBe(0); // Pick a stream with no role.
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});
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it('ignores no-role streams if there is a preferred role', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(0)
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.language('en')
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.roles(['commentary'])
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.addTextStream(1)
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.language('en')
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.addTextStream(2)
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.language('en')
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.roles(['secondary'])
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'en',
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'main'); // A role that is not present.
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expect(chosen.length).toBe(1);
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expect(chosen[0].roles.length).toBe(1); // Pick a stream with a role.
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});
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it('chooses only one role, even if none is preferred', () => {
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// Regression test for https://github.com/google/shaka-player/issues/949
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(0)
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.language('en')
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.roles(['commentary'])
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.addTextStream(1)
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.language('en')
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.roles(['commentary'])
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.addTextStream(2)
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.language('en')
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.roles(['secondary'])
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.addTextStream(3)
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.language('en')
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.roles(['secondary'])
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.addTextStream(4)
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.language('en')
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.roles(['main'])
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.addTextStream(5)
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.language('en')
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.roles(['main'])
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'en',
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'');
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// Which role is chosen is an implementation detail.
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// Each role is found on two text streams, so we should have two.
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expect(chosen.length).toBe(2);
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expect(chosen[0].roles[0]).toEqual(chosen[1].roles[0]);
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});
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it('chooses only one role, even if all are primary', () => {
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// Regression test for https://github.com/google/shaka-player/issues/949
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(0)
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.language('en').primary()
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.roles(['commentary'])
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.addTextStream(1)
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.language('en').primary()
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.roles(['commentary'])
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.addTextStream(2)
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.language('en').primary()
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.roles(['secondary'])
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.addTextStream(3)
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.language('en').primary()
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.roles(['secondary'])
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.addTextStream(4)
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.language('en').primary()
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.roles(['main'])
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.addTextStream(5)
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.language('en').primary()
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.roles(['main'])
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'zh',
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'');
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// Which role is chosen is an implementation detail.
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// Each role is found on two text streams, so we should have two.
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expect(chosen.length).toBe(2);
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expect(chosen[0].roles[0]).toEqual(chosen[1].roles[0]);
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});
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it('chooses only one language, even if all are primary', () => {
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// Regression test for https://github.com/google/shaka-player/issues/918
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(0)
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.language('en').primary()
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.addTextStream(1)
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.language('en').primary()
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.addTextStream(2)
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.language('es').primary()
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.addTextStream(3)
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.language('es').primary()
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'zh',
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'');
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// Which language is chosen is an implementation detail.
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// Each role is found on two variants, so we should have two.
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expect(chosen.length).toBe(2);
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expect(chosen[0].language).toEqual(chosen[1].language);
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});
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it('chooses a role from among primary streams without language match',
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() => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(0)
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.language('en').primary()
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.roles(['commentary'])
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.addTextStream(1)
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.language('en').primary()
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.roles(['commentary'])
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.addTextStream(2)
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.language('en')
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.roles(['secondary'])
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.addTextStream(3)
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.language('en')
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.roles(['secondary'])
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.addTextStream(4)
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.language('en').primary()
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.roles(['main'])
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.addTextStream(5)
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.language('en').primary()
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.roles(['main'])
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'zh',
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'');
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// Which role is chosen is an implementation detail.
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// Each role is found on two text streams, so we should have two.
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expect(chosen.length).toBe(2);
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expect(chosen[0].roles[0]).toEqual(chosen[1].roles[0]);
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// Since nothing matches our language preference, we chose primary
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// text streams.
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expect(chosen[0].primary).toBe(true);
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expect(chosen[1].primary).toBe(true);
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});
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it('chooses a role from best language match, in spite of primary',
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() => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(0)
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.language('en').primary()
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.roles(['commentary'])
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.addTextStream(1)
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.language('en').primary()
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.roles(['commentary'])
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.addTextStream(2)
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.language('zh')
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.roles(['secondary'])
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.addTextStream(3)
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.language('zh')
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.roles(['secondary'])
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.addTextStream(4)
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.language('en').primary()
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.roles(['main'])
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.addTextStream(5)
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.language('en').primary()
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.roles(['main'])
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.build();
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const chosen = filterStreamsByLanguageAndRole(
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manifest.periods[0].textStreams,
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'zh',
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'');
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expect(chosen.length).toBe(2);
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expect(chosen[0].language).toBe('zh');
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expect(chosen[1].language).toBe('zh');
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expect(chosen[0].primary).toBe(false);
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expect(chosen[1].primary).toBe(false);
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});
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});
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describe('filterVariantsByAudioChannelCount', () => {
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it('chooses variants with preferred audio channels count', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addVariant(0)
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.addAudio(0).channelsCount(2)
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.addVariant(1)
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.addAudio(1).channelsCount(6)
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.addVariant(2)
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.addAudio(2).channelsCount(2)
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.build();
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const chosen = filterVariantsByAudioChannelCount(
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manifest.periods[0].variants, 2);
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expect(chosen.length).toBe(2);
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expect(chosen[0]).toBe(manifest.periods[0].variants[0]);
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expect(chosen[1]).toBe(manifest.periods[0].variants[2]);
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});
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it('chooses variants with largest audio channel count less than config' +
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' when no exact audio channel count match is possible', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addVariant(0)
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.addAudio(0).channelsCount(2)
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.addVariant(1)
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.addAudio(1).channelsCount(8)
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.addVariant(2)
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.addAudio(2).channelsCount(2)
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.build();
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const chosen = filterVariantsByAudioChannelCount(
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manifest.periods[0].variants, 6);
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expect(chosen.length).toBe(2);
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expect(chosen[0]).toBe(manifest.periods[0].variants[0]);
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expect(chosen[1]).toBe(manifest.periods[0].variants[2]);
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});
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it('chooses variants with fewest audio channels when none fit in the ' +
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'config', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addVariant(0)
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.addAudio(0).channelsCount(6)
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.addVariant(1)
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.addAudio(1).channelsCount(8)
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.addVariant(2)
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.addAudio(2).channelsCount(6)
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.build();
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const chosen = filterVariantsByAudioChannelCount(
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manifest.periods[0].variants, 2);
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expect(chosen.length).toBe(2);
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expect(chosen[0]).toBe(manifest.periods[0].variants[0]);
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expect(chosen[1]).toBe(manifest.periods[0].variants[2]);
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});
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});
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describe('filterNewPeriod', () => {
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let fakeDrmEngine;
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beforeAll(() => {
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fakeDrmEngine = new shaka.test.FakeDrmEngine();
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});
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it('filters text streams with the full MIME type', () => {
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manifest = new shaka.test.ManifestGenerator()
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.addPeriod(0)
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.addTextStream(1).mime('text/vtt')
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.addTextStream(2).mime('application/mp4', 'wvtt')
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.addTextStream(3).mime('text/bogus')
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.addTextStream(4).mime('application/mp4', 'bogus')
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.build();
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const noAudio = null;
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const noVideo = null;
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shaka.util.StreamUtils.filterNewPeriod(
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fakeDrmEngine, noAudio, noVideo, manifest.periods[0]);
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// Covers a regression in which we would remove streams with codecs.
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// The last two streams should be removed because their full MIME types
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// are bogus.
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expect(manifest.periods[0].textStreams.length).toBe(2);
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const textStreams = manifest.periods[0].textStreams;
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expect(textStreams[0].id).toBe(1);
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expect(textStreams[1].id).toBe(2);
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});
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});
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});
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