mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-14 15:56:38 +03:00
Jacob Trimble
83de1ad634
This ensures that we get the expected types and that type coercion doesn't convert between types. This also ensures we are consistent in how we check for equality of primitives in tests. Change-Id: I9f3aacdf25ab1afe5e8d6e4b895b5299ee687d54
413 lines
14 KiB
JavaScript
413 lines
14 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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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]).toBe(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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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]).toBe(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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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).toBe(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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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]).toBe(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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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/* eslint-disable indent */
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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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/* eslint-enable indent */
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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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