content/renderer/media/media_stream_center.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/renderer/media/media_stream_center.h"
   6
   7 #include <string>
   8
   9 #include "base/logging.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/string_number_conversions.h"
  12 #include "base/utf_string_conversions.h"
  13 #include "content/renderer/media/media_stream_dependency_factory.h"
  14 #include "content/renderer/media/media_stream_extra_data.h"
  15 #include "content/renderer/media/media_stream_impl.h"
  16 #include "content/renderer/render_view_impl.h"
  17 #include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStream.h"
  18 #include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamCenterClient.h"
  19 #include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamSource.h"
  20 #include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamSourcesRequest.h"
  21 #include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamTrack.h"
  22 #include "third_party/WebKit/Source/Platform/chromium/public/WebVector.h"
  23 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
  24 #include "third_party/libjingle/source/talk/app/webrtc/jsep.h"
  25
  26 namespace content {
  27
  28 static webrtc::MediaStreamInterface* GetNativeMediaStream(
  29     const WebKit::WebMediaStream& stream) {
  30   MediaStreamExtraData* extra_data =
  31       static_cast<MediaStreamExtraData*>(stream.extraData());
  32   return extra_data->stream();
  33 }
  34
  35 static webrtc::MediaStreamTrackInterface* GetNativeMediaStreamTrack(
  36       const WebKit::WebMediaStream& stream,
  37       const WebKit::WebMediaStreamTrack& component) {
  38   std::string track_id = UTF16ToUTF8(component.id());
  39   webrtc::MediaStreamInterface* native_stream = GetNativeMediaStream(stream);
  40   if (native_stream) {
  41     if (component.source().type() == WebKit::WebMediaStreamSource::TypeAudio) {
  42       return native_stream->FindAudioTrack(track_id);
  43     }
  44     if (component.source().type() == WebKit::WebMediaStreamSource::TypeVideo) {
  45       return native_stream->FindVideoTrack(track_id);
  46     }
  47   }
  48   NOTREACHED();
  49   return NULL;
  50 }
  51
  52 MediaStreamCenter::MediaStreamCenter(WebKit::WebMediaStreamCenterClient* client,
  53                                      MediaStreamDependencyFactory* factory)
  54     : rtc_factory_(factory) {
  55 }
  56
  57 void MediaStreamCenter::queryMediaStreamSources(
  58     const WebKit::WebMediaStreamSourcesRequest& request) {
  59   WebKit::WebVector<WebKit::WebMediaStreamSource> audioSources, videoSources;
  60   request.didCompleteQuery(audioSources, videoSources);
  61 }
  62
  63 void MediaStreamCenter::didEnableMediaStreamTrack(
  64     const WebKit::WebMediaStream& stream,
  65     const WebKit::WebMediaStreamTrack& component) {
  66   webrtc::MediaStreamTrackInterface* track =
  67       GetNativeMediaStreamTrack(stream, component);
  68   if (track)
  69     track->set_enabled(true);
  70 }
  71
  72 void MediaStreamCenter::didDisableMediaStreamTrack(
  73     const WebKit::WebMediaStream& stream,
  74     const WebKit::WebMediaStreamTrack& component) {
  75   webrtc::MediaStreamTrackInterface* track =
  76       GetNativeMediaStreamTrack(stream, component);
  77   if (track)
  78     track->set_enabled(false);
  79 }
  80
  81 void MediaStreamCenter::didStopLocalMediaStream(
  82     const WebKit::WebMediaStream& stream) {
  83   DVLOG(1) << "MediaStreamCenter::didStopLocalMediaStream";
  84   MediaStreamExtraData* extra_data =
  85        static_cast<MediaStreamExtraData*>(stream.extraData());
  86   if (!extra_data) {
  87     NOTREACHED();
  88     return;
  89   }
  90
  91   extra_data->OnLocalStreamStop();
  92 }
  93
  94 void MediaStreamCenter::didCreateMediaStream(
  95     WebKit::WebMediaStream& stream) {
  96   if (!rtc_factory_)
  97     return;
  98   rtc_factory_->CreateNativeLocalMediaStream(&stream);
  99 }
 100
 101 bool MediaStreamCenter::didAddMediaStreamTrack(
 102     const WebKit::WebMediaStream& stream,
 103     const WebKit::WebMediaStreamTrack& track) {
 104   if (!rtc_factory_)
 105     return false;
 106
 107   return rtc_factory_->AddNativeMediaStreamTrack(stream, track);
 108 }
 109
 110 bool MediaStreamCenter::didRemoveMediaStreamTrack(
 111     const WebKit::WebMediaStream& stream,
 112     const WebKit::WebMediaStreamTrack& track) {
 113   if (!rtc_factory_)
 114     return false;
 115
 116   return rtc_factory_->RemoveNativeMediaStreamTrack(stream, track);
 117 }
 118
 119 }  // namespace content