mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-17 16:26:39 +03:00
Joey Parrish
64896d70b0
This reflects changes in Google's policy on JavaScript license headers, which should be smaller to avoid increasing the size of the binary unnecessarily. This also updates the company name from "Google, Inc" to "Google LLC". Change-Id: I3f8b9ed3700b6351f43173d50c94d35c333e82b4
482 lines
16 KiB
JavaScript
482 lines
16 KiB
JavaScript
/** @license
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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('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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'es';
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});
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period.addTextStream(3, (stream) => {
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stream.language = 'en';
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(1);
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period.addTextStream(2, (stream) => {
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stream.primary = true;
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});
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period.addTextStream(3, (stream) => {
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stream.primary = true;
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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stream.roles = ['main', 'commentary'];
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'es';
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});
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period.addTextStream(3, (stream) => {
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stream.language = 'en';
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stream.roles = ['caption'];
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(0, (stream) => {
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stream.language = 'en';
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stream.roles = ['commentary'];
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});
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'en';
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stream.roles = ['secondary'];
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(0, (stream) => {
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stream.language = 'en';
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stream.roles = ['commentary'];
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});
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'en';
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stream.roles = ['secondary'];
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(0, (stream) => {
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stream.language = 'en';
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stream.roles = ['commentary'];
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});
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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stream.roles = ['commentary'];
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'en';
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stream.roles = ['secondary'];
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});
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period.addTextStream(3, (stream) => {
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stream.language = 'en';
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stream.roles = ['secondary'];
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});
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period.addTextStream(4, (stream) => {
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stream.language = 'en';
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stream.roles = ['main'];
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});
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period.addTextStream(5, (stream) => {
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stream.language = 'en';
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stream.roles = ['main'];
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});
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});
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});
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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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manifest = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(0, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['commentary'];
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});
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['commentary'];
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['secondary'];
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});
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period.addTextStream(3, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['secondary'];
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});
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period.addTextStream(4, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['main'];
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});
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period.addTextStream(5, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['main'];
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});
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});
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});
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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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manifest = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(0, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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});
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'es';
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stream.primary = true;
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});
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period.addTextStream(3, (stream) => {
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stream.language = 'es';
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stream.primary = true;
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});
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});
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});
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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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manifest = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(0, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['commentary'];
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});
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['commentary'];
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'en';
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stream.roles = ['secondary'];
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});
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period.addTextStream(3, (stream) => {
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stream.language = 'en';
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stream.roles = ['secondary'];
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});
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period.addTextStream(4, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['main'];
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});
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period.addTextStream(5, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['main'];
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});
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});
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});
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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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manifest = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(0, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['commentary'];
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});
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period.addTextStream(1, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['commentary'];
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});
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period.addTextStream(2, (stream) => {
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stream.language = 'zh';
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stream.roles = ['secondary'];
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});
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period.addTextStream(3, (stream) => {
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stream.language = 'zh';
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stream.roles = ['secondary'];
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});
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period.addTextStream(4, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['main'];
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});
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period.addTextStream(5, (stream) => {
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stream.language = 'en';
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stream.primary = true;
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stream.roles = ['main'];
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addVariant(0, (variant) => {
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variant.addAudio(0, (stream) => {
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stream.channelsCount = 2;
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});
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});
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period.addVariant(1, (variant) => {
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variant.addAudio(1, (stream) => {
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stream.channelsCount = 6;
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});
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});
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period.addVariant(2, (variant) => {
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variant.addAudio(2, (stream) => {
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stream.channelsCount = 2;
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});
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addVariant(0, (variant) => {
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variant.addAudio(0, (stream) => {
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stream.channelsCount = 2;
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});
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});
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period.addVariant(1, (variant) => {
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variant.addAudio(1, (stream) => {
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stream.channelsCount = 8;
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});
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});
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period.addVariant(2, (variant) => {
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variant.addAudio(2, (stream) => {
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stream.channelsCount = 2;
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});
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addVariant(0, (variant) => {
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variant.addAudio(0, (stream) => {
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stream.channelsCount = 6;
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});
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});
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period.addVariant(1, (variant) => {
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variant.addAudio(1, (stream) => {
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stream.channelsCount = 8;
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});
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});
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period.addVariant(2, (variant) => {
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variant.addAudio(2, (stream) => {
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stream.channelsCount = 6;
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});
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});
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});
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});
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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 = shaka.test.ManifestGenerator.generate((manifest) => {
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manifest.addPeriod(0, (period) => {
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period.addTextStream(1, (stream) => {
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stream.mimeType = 'text/vtt';
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});
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period.addTextStream(2, (stream) => {
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stream.mime('application/mp4', 'wvtt');
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});
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period.addTextStream(3, (stream) => {
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stream.mimeType = 'text/bogus';
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});
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period.addTextStream(4, (stream) => {
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stream.mime('application/mp4', 'bogus');
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});
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});
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});
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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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