1/* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * Copyright (C) 2011, 2012, 2013 Apple Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include "config.h" 33 34#if ENABLE(VIDEO_TRACK) 35 36#include "AudioTrack.h" 37 38#include "AudioTrackList.h" 39#include "Event.h" 40#include "HTMLMediaElement.h" 41 42namespace WebCore { 43 44const AtomicString& AudioTrack::alternativeKeyword() 45{ 46 DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, alternative, ("alternative", AtomicString::ConstructFromLiteral)); 47 return alternative; 48} 49 50const AtomicString& AudioTrack::descriptionKeyword() 51{ 52 DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, description, ("description", AtomicString::ConstructFromLiteral)); 53 return description; 54} 55 56const AtomicString& AudioTrack::mainKeyword() 57{ 58 DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, main, ("main", AtomicString::ConstructFromLiteral)); 59 return main; 60} 61 62const AtomicString& AudioTrack::mainDescKeyword() 63{ 64 DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, mainDesc, ("main-desc", AtomicString::ConstructFromLiteral)); 65 return mainDesc; 66} 67 68const AtomicString& AudioTrack::translationKeyword() 69{ 70 DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, translation, ("translation", AtomicString::ConstructFromLiteral)); 71 return translation; 72} 73 74const AtomicString& AudioTrack::commentaryKeyword() 75{ 76 DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, commentary, ("commentary", AtomicString::ConstructFromLiteral)); 77 return commentary; 78} 79 80AudioTrack::AudioTrack(AudioTrackClient* client, PassRefPtr<AudioTrackPrivate> trackPrivate) 81 : TrackBase(TrackBase::AudioTrack, trackPrivate->id(), trackPrivate->label(), trackPrivate->language()) 82 , m_enabled(trackPrivate->enabled()) 83 , m_client(client) 84 , m_private(trackPrivate) 85{ 86 m_private->setClient(this); 87 updateKindFromPrivate(); 88} 89 90AudioTrack::~AudioTrack() 91{ 92 m_private->setClient(0); 93} 94 95void AudioTrack::setPrivate(PassRefPtr<AudioTrackPrivate> trackPrivate) 96{ 97 ASSERT(m_private); 98 ASSERT(trackPrivate); 99 100 if (m_private == trackPrivate) 101 return; 102 103 m_private->setClient(0); 104 m_private = trackPrivate; 105 m_private->setClient(this); 106 107 m_private->setEnabled(m_enabled); 108 updateKindFromPrivate(); 109} 110 111bool AudioTrack::isValidKind(const AtomicString& value) const 112{ 113 if (value == alternativeKeyword()) 114 return true; 115 if (value == descriptionKeyword()) 116 return true; 117 if (value == mainKeyword()) 118 return true; 119 if (value == mainDescKeyword()) 120 return true; 121 if (value == translationKeyword()) 122 return true; 123 if (value == commentaryKeyword()) 124 return true; 125 126 return false; 127} 128 129void AudioTrack::setEnabled(const bool enabled) 130{ 131 if (m_enabled == enabled) 132 return; 133 134 m_enabled = enabled; 135 m_private->setEnabled(enabled); 136 137 if (m_client) 138 m_client->audioTrackEnabledChanged(this); 139} 140 141size_t AudioTrack::inbandTrackIndex() 142{ 143 ASSERT(m_private); 144 return m_private->trackIndex(); 145} 146 147void AudioTrack::enabledChanged(AudioTrackPrivate* trackPrivate, bool enabled) 148{ 149 ASSERT_UNUSED(trackPrivate, trackPrivate == m_private); 150 setEnabled(enabled); 151} 152 153void AudioTrack::idChanged(TrackPrivateBase* trackPrivate, const AtomicString& id) 154{ 155 ASSERT_UNUSED(trackPrivate, trackPrivate == m_private); 156 setId(id); 157} 158 159void AudioTrack::labelChanged(TrackPrivateBase* trackPrivate, const AtomicString& label) 160{ 161 ASSERT_UNUSED(trackPrivate, trackPrivate == m_private); 162 setLabel(label); 163} 164 165void AudioTrack::languageChanged(TrackPrivateBase* trackPrivate, const AtomicString& language) 166{ 167 ASSERT_UNUSED(trackPrivate, trackPrivate == m_private); 168 setLanguage(language); 169} 170 171void AudioTrack::willRemove(TrackPrivateBase* trackPrivate) 172{ 173 ASSERT_UNUSED(trackPrivate, trackPrivate == m_private); 174 mediaElement()->removeAudioTrack(this); 175} 176 177void AudioTrack::updateKindFromPrivate() 178{ 179 switch (m_private->kind()) { 180 case AudioTrackPrivate::Alternative: 181 setKind(AudioTrack::alternativeKeyword()); 182 break; 183 case AudioTrackPrivate::Description: 184 setKind(AudioTrack::descriptionKeyword()); 185 break; 186 case AudioTrackPrivate::Main: 187 setKind(AudioTrack::mainKeyword()); 188 break; 189 case AudioTrackPrivate::MainDesc: 190 setKind(AudioTrack::mainDescKeyword()); 191 break; 192 case AudioTrackPrivate::Translation: 193 setKind(AudioTrack::translationKeyword()); 194 break; 195 case AudioTrackPrivate::Commentary: 196 setKind(AudioTrack::commentaryKeyword()); 197 break; 198 case AudioTrackPrivate::None: 199 setKind(emptyString()); 200 break; 201 default: 202 ASSERT_NOT_REACHED(); 203 break; 204 } 205} 206 207} // namespace WebCore 208 209#endif 210