third_party/WebKit/Source/platform/exported/WebMediaStreamTrack.cpp

   1 /*
   2  * Copyright (C) 2013 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1.  Redistributions of source code must retain the above copyright
   8  *     notice, this list of conditions and the following disclaimer.
   9  * 2.  Redistributions in binary form must reproduce the above copyright
  10  *     notice, this list of conditions and the following disclaimer in the
  11  *     documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  */
  24
  25 #include "config.h"
  26
  27 #include "public/platform/WebMediaStreamTrack.h"
  28
  29 #include "platform/mediastream/MediaStreamComponent.h"
  30 #include "platform/mediastream/MediaStreamSource.h"
  31 #include "public/platform/WebAudioSourceProvider.h"
  32 #include "public/platform/WebMediaStream.h"
  33 #include "public/platform/WebMediaStreamSource.h"
  34 #include "public/platform/WebString.h"
  35
  36 namespace blink {
  37
  38 namespace {
  39
  40 class ExtraDataContainer : public MediaStreamComponent::ExtraData {
  41 public:
  42     explicit ExtraDataContainer(PassOwnPtr<WebMediaStreamTrack::ExtraData> extraData) : m_extraData(extraData) { }
  43
  44     WebMediaStreamTrack::ExtraData* extraData() { return m_extraData.get(); }
  45
  46 private:
  47     OwnPtr<WebMediaStreamTrack::ExtraData> m_extraData;
  48 };
  49
  50 } // namespace
  51
  52 WebMediaStreamTrack WebMediaStreamTrack::ExtraData::owner()
  53 {
  54     ASSERT(m_owner);
  55     return WebMediaStreamTrack(m_owner);
  56 }
  57
  58 void WebMediaStreamTrack::ExtraData::setOwner(MediaStreamComponent* owner)
  59 {
  60     ASSERT(!m_owner);
  61     m_owner = owner;
  62 }
  63
  64 WebMediaStreamTrack::WebMediaStreamTrack(PassRefPtr<MediaStreamComponent> mediaStreamComponent)
  65     : m_private(mediaStreamComponent)
  66 {
  67 }
  68
  69 WebMediaStreamTrack::WebMediaStreamTrack(MediaStreamComponent* mediaStreamComponent)
  70     : m_private(mediaStreamComponent)
  71 {
  72 }
  73
  74 WebMediaStreamTrack& WebMediaStreamTrack::operator=(MediaStreamComponent* mediaStreamComponent)
  75 {
  76     m_private = mediaStreamComponent;
  77     return *this;
  78 }
  79
  80 void WebMediaStreamTrack::initialize(const WebMediaStreamSource& source)
  81 {
  82     m_private = MediaStreamComponent::create(source);
  83 }
  84
  85 void WebMediaStreamTrack::initialize(const WebString& id, const WebMediaStreamSource& source)
  86 {
  87     m_private = MediaStreamComponent::create(id, source);
  88 }
  89
  90 void WebMediaStreamTrack::reset()
  91 {
  92     m_private.reset();
  93 }
  94
  95 WebMediaStreamTrack::operator PassRefPtr<MediaStreamComponent>() const
  96 {
  97     return m_private.get();
  98 }
  99
 100 WebMediaStreamTrack::operator MediaStreamComponent*() const
 101 {
 102     return m_private.get();
 103 }
 104
 105 bool WebMediaStreamTrack::isEnabled() const
 106 {
 107     ASSERT(!m_private.isNull());
 108     return m_private->enabled();
 109 }
 110
 111 bool WebMediaStreamTrack::isMuted() const
 112 {
 113     ASSERT(!m_private.isNull());
 114     return m_private->muted();
 115 }
 116
 117 WebString WebMediaStreamTrack::id() const
 118 {
 119     ASSERT(!m_private.isNull());
 120     return m_private->id();
 121 }
 122
 123 WebMediaStreamSource WebMediaStreamTrack::source() const
 124 {
 125     ASSERT(!m_private.isNull());
 126     return WebMediaStreamSource(m_private->source());
 127 }
 128
 129 WebMediaStreamTrack::ExtraData* WebMediaStreamTrack::extraData() const
 130 {
 131     MediaStreamComponent::ExtraData* data = m_private->extraData();
 132     if (!data)
 133         return 0;
 134     return static_cast<ExtraDataContainer*>(data)->extraData();
 135 }
 136
 137 void WebMediaStreamTrack::setExtraData(ExtraData* extraData)
 138 {
 139     ASSERT(!m_private.isNull());
 140
 141     if (extraData)
 142         extraData->setOwner(m_private.get());
 143
 144     m_private->setExtraData(adoptPtr(new ExtraDataContainer(adoptPtr(extraData))));
 145 }
 146
 147 void WebMediaStreamTrack::setSourceProvider(WebAudioSourceProvider* provider)
 148 {
 149 #if ENABLE(WEB_AUDIO)
 150     ASSERT(!m_private.isNull());
 151     m_private->setSourceProvider(provider);
 152 #endif // ENABLE(WEB_AUDIO)
 153 }
 154
 155 void WebMediaStreamTrack::assign(const WebMediaStreamTrack& other)
 156 {
 157     m_private = other.m_private;
 158 }
 159
 160 } // namespace blink