mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-16 16:16:40 +03:00
Jacob Trimble
f70436540c
This is part of a change to convert all usages of 'var' with either 'let' or 'const'. This takes a conservative approach for 'const' where it will only be used for aliases and storing the "original" values in tests. Change-Id: I10f5c38a8b06b5797c6eec7492829084114514c9
333 lines
12 KiB
JavaScript
333 lines
12 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('Mp4Parser', function() {
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const Util = shaka.test.Util;
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let boxData;
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let fullBoxData;
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let boxWithChildData;
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let boxWithSampleDescription;
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let partialBoxWithSampleDescription;
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let multipleSingleLevelBoxes;
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let twoLevelBoxStructure;
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beforeAll(function() {
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boxData = new Uint8Array([
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0x00, 0x00, 0x00, 0x0C, // size
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0x62, 0x30, 0x30, 0x31, // type
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0x00, 0x11, 0x22, 0x33 // payload
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]).buffer;
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fullBoxData = new Uint8Array([
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0x00, 0x00, 0x00, 0x10, // size
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0x62, 0x30, 0x30, 0x31, // type
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0x01, // version
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0x12, 0x34, 0x56, // flags
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0x00, 0x11, 0x22, 0x33 // payload
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]).buffer;
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boxWithChildData = new Uint8Array([
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0x00, 0x00, 0x00, 0x14, // size
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0x62, 0x30, 0x30, 0x33, // type
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0x00, 0x00, 0x00, 0x0C, // child [0] size
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0x62, 0x30, 0x33, 0x31, // child [0] type
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0x00, 0x11, 0x22, 0x33, // child [0] payload
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0x00, 0x00, 0x00, 0x0C, // child [1] size
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0x62, 0x30, 0x33, 0x32, // child [1] type
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0x44, 0x55, 0x66, 0x77 // child [1] payload
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]).buffer;
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boxWithSampleDescription = new Uint8Array([
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0x00, 0x00, 0x00, 0x24, // size
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0x62, 0x30, 0x30, 0x33, // type
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0x00, 0x00, 0x00, 0x02, // number of chidren
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0x00, 0x00, 0x00, 0x0C, // child [0] size
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0x62, 0x30, 0x33, 0x32, // child [0] type
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0x00, 0x11, 0x22, 0x33, // child [0] payload
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0x00, 0x00, 0x00, 0x0C, // child [1] size
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0x62, 0x30, 0x33, 0x33, // child [1] type
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0x44, 0x55, 0x66, 0x77 // child [1] payload
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]).buffer;
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partialBoxWithSampleDescription = new Uint8Array([
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0x00, 0x00, 0x00, 0x24, // size
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0x62, 0x30, 0x30, 0x33, // type
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0x00, 0x00, 0x00, 0x02, // number of chidren
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0x00, 0x00, 0x00, 0x0C, // child [0] size
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0x62, 0x30, 0x33, 0x32, // child [0] type
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0x00, 0x11, 0x22, 0x33 // child [0] payload
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// Omit child [1]
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]).buffer;
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multipleSingleLevelBoxes = new Uint8Array([
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0x00, 0x00, 0x00, 0x0C, // box [0] size
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0x62, 0x30, 0x30, 0x31, // box [0] type
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0x00, 0x11, 0x22, 0x33, // box [0] payload
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0x00, 0x00, 0x00, 0x0C, // box [1] size
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0x62, 0x30, 0x30, 0x32, // box [1] type
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0x00, 0x11, 0x22, 0x33, // box [1] payload
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0x00, 0x00, 0x00, 0x0C, // box [2] size
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0x62, 0x30, 0x30, 0x33, // box [2] type
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0x00, 0x11, 0x22, 0x33, // box [2] payload
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0x00, 0x00, 0x00, 0x0C, // box [3] size
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0x62, 0x30, 0x30, 0x34, // box [3] type
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0x00, 0x11, 0x22, 0x33 // box [3] payload
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]).buffer;
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twoLevelBoxStructure = new Uint8Array([
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0x00, 0x00, 0x00, 0x14, // box [0] size
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0x62, 0x30, 0x31, 0x30, // box [0] type
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0x00, 0x00, 0x00, 0x0C, // box [0] [0] size
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0x00, 0x30, 0x31, 0x31, // box [0] [0] type
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0x00, 0x11, 0x22, 0x33, // box [0] [0] payload
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0x00, 0x00, 0x00, 0x14, // box [1] size
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0x62, 0x30, 0x32, 0x30, // box [1] type
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0x00, 0x00, 0x00, 0x0C, // box [1] [0] size
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0x62, 0x30, 0x32, 0x31, // box [1] [0] type
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0x00, 0x11, 0x22, 0x33, // box [1] [0] payload
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0x00, 0x00, 0x00, 0x14, // box [2] size
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0x62, 0x30, 0x33, 0x30, // box [2] type
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0x00, 0x00, 0x00, 0x0C, // box [2] [0] size
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0x62, 0x30, 0x33, 0x31, // box [2] [0] type
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0x00, 0x11, 0x22, 0x33, // box [2] [0] payload
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0x00, 0x00, 0x00, 0x14, // box [3] size
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0x62, 0x30, 0x34, 0x30, // box [3] type
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0x00, 0x00, 0x00, 0x0C, // box [3] [0] size
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0x62, 0x30, 0x34, 0x31, // box [3] [0] type
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0x00, 0x11, 0x22, 0x33 // box [3] [0] payload
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]).buffer;
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});
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describe('headerDefinitions', function() {
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it('reads box header', function() {
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let callback = jasmine.createSpy('parser callback').and.callFake(
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function(box) {
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expect(box.size).toEqual(12);
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expect(box.version).toEqual(null);
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expect(box.flags).toEqual(null);
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});
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new shaka.util.Mp4Parser()
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.box('b001', Util.spyFunc(callback)).parse(boxData);
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expect(callback).toHaveBeenCalled();
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});
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it('reads full box header', function() {
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let callback = jasmine.createSpy('parser callback').and.callFake(
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function(box) {
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expect(box.size).toEqual(16);
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expect(box.version).toEqual(1);
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expect(box.flags).toEqual(0x123456);
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});
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new shaka.util.Mp4Parser()
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.fullBox('b001', Util.spyFunc(callback)).parse(fullBoxData);
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expect(callback).toHaveBeenCalled();
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});
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});
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describe('boxDefinitions', function() {
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it('reads children definition', function() {
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let parentBox = jasmine.createSpy('parent box').and.callFake(
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shaka.util.Mp4Parser.children);
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let childBox1 = jasmine.createSpy('child box 1').and.callFake(
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function(box) {
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expect(box.size).toEqual(12);
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expect(box.version).toEqual(null);
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expect(box.flags).toEqual(null);
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});
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let childBox2 = jasmine.createSpy('child box 2').and.callFake(
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function(box) {
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expect(box.size).toEqual(12);
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expect(box.version).toEqual(null);
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expect(box.flags).toEqual(null);
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});
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new shaka.util.Mp4Parser()
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.box('b003', Util.spyFunc(parentBox))
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.box('b031', Util.spyFunc(childBox1))
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.box('b032', Util.spyFunc(childBox2)).parse(boxWithChildData);
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expect(parentBox).toHaveBeenCalled();
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expect(childBox1).toHaveBeenCalled();
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expect(childBox2).toHaveBeenCalled();
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});
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it('stops reading children when asked to', function() {
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let parentBox = jasmine.createSpy('parent box').and.callFake(
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shaka.util.Mp4Parser.children);
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let childBox1 = jasmine.createSpy('child box 1').and.callFake(
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function(box) {
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box.parser.stop();
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});
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let childBox2 = jasmine.createSpy('child box 2');
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new shaka.util.Mp4Parser()
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.box('b003', Util.spyFunc(parentBox))
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.box('b031', Util.spyFunc(childBox1))
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.box('b032', Util.spyFunc(childBox2)).parse(boxWithChildData);
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expect(parentBox).toHaveBeenCalled();
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expect(childBox1).toHaveBeenCalled();
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expect(childBox2).not.toHaveBeenCalled();
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});
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it('reads all data definition', function() {
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let payload = [];
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new shaka.util.Mp4Parser()
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.box('b001', shaka.util.Mp4Parser.allData(
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function(data) {
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payload = data;
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})).parse(boxData);
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expect(payload.length).toEqual(4);
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expect(payload[0]).toEqual(0x00);
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expect(payload[1]).toEqual(0x11);
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expect(payload[2]).toEqual(0x22);
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expect(payload[3]).toEqual(0x33);
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});
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it('reads sample description definition', function() {
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let parentBox = jasmine.createSpy('parent box').and.callFake(
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shaka.util.Mp4Parser.sampleDescription);
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let childBox1 = jasmine.createSpy('child box 1');
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let childBox2 = jasmine.createSpy('child box 2');
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new shaka.util.Mp4Parser()
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.box('b003', Util.spyFunc(parentBox))
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.box('b032', Util.spyFunc(childBox1))
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.box('b033', Util.spyFunc(childBox2)).parse(boxWithSampleDescription);
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expect(parentBox).toHaveBeenCalledTimes(1);
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expect(childBox1).toHaveBeenCalledTimes(1);
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expect(childBox2).toHaveBeenCalledTimes(1);
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});
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it('stops reading sample description when asked to', function() {
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let parentBox = jasmine.createSpy('parent box').and.callFake(
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shaka.util.Mp4Parser.sampleDescription);
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let childBox1 = jasmine.createSpy('child box 1').and.callFake(
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function(box) {
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box.parser.stop();
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});
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let childBox2 = jasmine.createSpy('child box 2');
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new shaka.util.Mp4Parser()
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.box('b003', Util.spyFunc(parentBox))
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.box('b032', Util.spyFunc(childBox1))
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.box('b033', Util.spyFunc(childBox2)).parse(boxWithSampleDescription);
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expect(parentBox).toHaveBeenCalledTimes(1);
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expect(childBox1).toHaveBeenCalledTimes(1);
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expect(childBox2).not.toHaveBeenCalled();
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});
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});
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describe('parsing', function() {
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it('finds all top level boxes', function() {
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let box1 = jasmine.createSpy('box 1');
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let box2 = jasmine.createSpy('box 2');
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let box3 = jasmine.createSpy('box 3');
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new shaka.util.Mp4Parser()
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.box('b001', Util.spyFunc(box1))
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.box('b002', Util.spyFunc(box2))
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.box('b003', Util.spyFunc(box3)).parse(multipleSingleLevelBoxes);
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expect(box1).toHaveBeenCalled();
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expect(box2).toHaveBeenCalled();
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expect(box3).toHaveBeenCalled();
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});
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it('skips undefined top level boxes', function() {
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// By leaving a single box undefined, it should not interfere
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// with the other boxes (on the same level) from being read.
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let box1 = jasmine.createSpy('box 1');
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let box3 = jasmine.createSpy('box 3');
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new shaka.util.Mp4Parser()
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.box('b001', Util.spyFunc(box1))
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.box('b003', Util.spyFunc(box3)).parse(multipleSingleLevelBoxes);
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expect(box1).toHaveBeenCalled();
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expect(box3).toHaveBeenCalled();
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});
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it('does not parse child boxes with undefined parent box', function() {
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let box1 = jasmine.createSpy('box 1');
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let box2Child = jasmine.createSpy('box 2 child');
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let box3 = jasmine.createSpy('box 3');
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// Listing a definition for box 2's child but not for box 2 should mean
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// box 2's child is never parsed.
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new shaka.util.Mp4Parser()
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.box('b010', Util.spyFunc(box1))
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.box('b021', Util.spyFunc(box2Child))
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.box('b030', Util.spyFunc(box3)).parse(twoLevelBoxStructure);
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expect(box1).toHaveBeenCalled();
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expect(box2Child).not.toHaveBeenCalled();
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expect(box3).toHaveBeenCalled();
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});
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it('can parse partial parent box and find first child', function() {
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let parentBox = jasmine.createSpy('parent box').and.callFake(
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shaka.util.Mp4Parser.sampleDescription);
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let childBox1 = jasmine.createSpy('child box 1').and.callFake(
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function(box) {
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// We found what we were looking for, so stop parsing.
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box.parser.stop();
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});
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try {
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new shaka.util.Mp4Parser()
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.box('b003', Util.spyFunc(parentBox))
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.box('b032', Util.spyFunc(childBox1))
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.parse(partialBoxWithSampleDescription, false /* partialOkay */);
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fail('Should not have been able to parse!');
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} catch (error) {
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Util.expectToEqualError(error, new shaka.util.Error(
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shaka.util.Error.Severity.CRITICAL,
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shaka.util.Error.Category.MEDIA,
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shaka.util.Error.Code.BUFFER_READ_OUT_OF_BOUNDS));
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}
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parentBox.calls.reset();
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childBox1.calls.reset();
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// With the partialOkay flag set to true, this should succeed.
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new shaka.util.Mp4Parser()
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.box('b003', Util.spyFunc(parentBox))
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.box('b032', Util.spyFunc(childBox1))
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.parse(partialBoxWithSampleDescription, true /* partialOkay */);
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expect(parentBox).toHaveBeenCalledTimes(1);
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expect(childBox1).toHaveBeenCalledTimes(1);
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});
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});
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});
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