src/third_party/WebKit/Source/platform/mediastream/MediaStreamCenter.cpp

   1 /*
   2  * Copyright (C) 2011 Ericsson AB. All rights reserved.
   3  * Copyright (C) 2012 Google 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
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer
  13  *    in the documentation and/or other materials provided with the
  14  *    distribution.
  15  * 3. Neither the name of Ericsson nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this
  17  *    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 #include "platform/mediastream/MediaStreamCenter.h"
  35
  36 #include "platform/mediastream/MediaStreamDescriptor.h"
  37 #include "platform/mediastream/MediaStreamTrackSourcesRequest.h"
  38 #include "platform/mediastream/MediaStreamWebAudioSource.h"
  39 #include "public/platform/Platform.h"
  40 #include "public/platform/WebAudioSourceProvider.h"
  41 #include "public/platform/WebMediaStream.h"
  42 #include "public/platform/WebMediaStreamCenter.h"
  43 #include "public/platform/WebMediaStreamTrack.h"
  44 #include "public/platform/WebMediaStreamTrackSourcesRequest.h"
  45 #include "wtf/Assertions.h"
  46 #include "wtf/MainThread.h"
  47 #include "wtf/PassOwnPtr.h"
  48
  49 namespace blink {
  50
  51 MediaStreamCenter& MediaStreamCenter::instance()
  52 {
  53     ASSERT(isMainThread());
  54     DEFINE_STATIC_LOCAL(MediaStreamCenter, center, ());
  55     return center;
  56 }
  57
  58 MediaStreamCenter::MediaStreamCenter()
  59     : m_private(adoptPtr(blink::Platform::current()->createMediaStreamCenter(this)))
  60 {
  61 }
  62
  63 MediaStreamCenter::~MediaStreamCenter()
  64 {
  65 }
  66
  67 bool MediaStreamCenter::getMediaStreamTrackSources(MediaStreamTrackSourcesRequest* request)
  68 {
  69     return m_private && m_private->getMediaStreamTrackSources(request);
  70 }
  71
  72 void MediaStreamCenter::didSetMediaStreamTrackEnabled(MediaStreamComponent* component)
  73 {
  74     if (m_private) {
  75         if (component->enabled()) {
  76             m_private->didEnableMediaStreamTrack(component);
  77         } else {
  78             m_private->didDisableMediaStreamTrack(component);
  79         }
  80     }
  81 }
  82
  83 bool MediaStreamCenter::didAddMediaStreamTrack(MediaStreamDescriptor* stream, MediaStreamComponent* component)
  84 {
  85     return m_private && m_private->didAddMediaStreamTrack(stream, component);
  86 }
  87
  88 bool MediaStreamCenter::didRemoveMediaStreamTrack(MediaStreamDescriptor* stream, MediaStreamComponent* component)
  89 {
  90     return m_private && m_private->didRemoveMediaStreamTrack(stream, component);
  91 }
  92
  93 void MediaStreamCenter::didStopLocalMediaStream(MediaStreamDescriptor* stream)
  94 {
  95     if (m_private)
  96         m_private->didStopLocalMediaStream(stream);
  97 }
  98
  99 bool MediaStreamCenter::didStopMediaStreamTrack(MediaStreamComponent* track)
 100 {
 101     return m_private && m_private->didStopMediaStreamTrack(track);
 102 }
 103
 104 void MediaStreamCenter::didCreateMediaStreamAndTracks(MediaStreamDescriptor* stream)
 105 {
 106     if (!m_private)
 107         return;
 108
 109     for (size_t i = 0; i < stream->numberOfAudioComponents(); ++i)
 110         didCreateMediaStreamTrack(stream->audioComponent(i));
 111
 112     for (size_t i = 0; i < stream->numberOfVideoComponents(); ++i)
 113         didCreateMediaStreamTrack(stream->videoComponent(i));
 114
 115     blink::WebMediaStream webStream(stream);
 116     m_private->didCreateMediaStream(webStream);
 117 }
 118
 119 void MediaStreamCenter::didCreateMediaStream(MediaStreamDescriptor* stream)
 120 {
 121     if (m_private) {
 122         blink::WebMediaStream WebMediaStream(stream);
 123         m_private->didCreateMediaStream(WebMediaStream);
 124     }
 125 }
 126
 127 void MediaStreamCenter::didCreateMediaStreamTrack(MediaStreamComponent* track)
 128 {
 129     if (m_private)
 130         m_private->didCreateMediaStreamTrack(track);
 131 }
 132
 133 PassOwnPtr<AudioSourceProvider> MediaStreamCenter::createWebAudioSourceFromMediaStreamTrack(MediaStreamComponent* track)
 134 {
 135     ASSERT_UNUSED(track, track);
 136 #if ENABLE(WEB_AUDIO)
 137     if (m_private)
 138         return MediaStreamWebAudioSource::create(adoptPtr(m_private->createWebAudioSourceFromMediaStreamTrack(track)));
 139 #endif
 140
 141     return nullptr;
 142 }
 143
 144 void MediaStreamCenter::stopLocalMediaStream(const blink::WebMediaStream& webStream)
 145 {
 146     MediaStreamDescriptor* stream = webStream;
 147     MediaStreamDescriptorClient* client = stream->client();
 148     if (client)
 149         client->streamEnded();
 150     else
 151         stream->setEnded();
 152 }
 153
 154 } // namespace blink