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 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_CENTER_H_ 6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_CENTER_H_ 7 8 #include <map> 9 10 #include "base/basictypes.h" 11 #include "base/compiler_specific.h" 12 #include "content/common/content_export.h" 13 #include "content/common/media/media_stream_options.h" 14 #include "content/public/renderer/render_process_observer.h" 15 #include "third_party/WebKit/public/platform/WebMediaStream.h" 16 #include "third_party/WebKit/public/platform/WebMediaStreamCenter.h" 17 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h" 18 #include "third_party/WebKit/public/platform/WebMediaStreamTrackSourcesRequest.h" 19 20 namespace blink { 21 class WebAudioSourceProvider; 22 class WebMediaStreamCenterClient; 23 } 24 25 namespace content { 26 class PeerConnectionDependencyFactory; 27 28 class CONTENT_EXPORT MediaStreamCenter NON_EXPORTED_BASE(public blink::WebMediaStreamCenter)29 : NON_EXPORTED_BASE(public blink::WebMediaStreamCenter), 30 public RenderProcessObserver { 31 public: 32 MediaStreamCenter(blink::WebMediaStreamCenterClient* client, 33 PeerConnectionDependencyFactory* factory); 34 virtual ~MediaStreamCenter(); 35 36 private: 37 virtual bool getMediaStreamTrackSources( 38 const blink::WebMediaStreamTrackSourcesRequest& request) OVERRIDE; 39 40 virtual void didCreateMediaStreamTrack( 41 const blink::WebMediaStreamTrack& track) OVERRIDE; 42 43 virtual void didEnableMediaStreamTrack( 44 const blink::WebMediaStreamTrack& track) OVERRIDE; 45 46 virtual void didDisableMediaStreamTrack( 47 const blink::WebMediaStreamTrack& track) OVERRIDE; 48 49 virtual void didStopLocalMediaStream( 50 const blink::WebMediaStream& stream) OVERRIDE; 51 52 virtual bool didStopMediaStreamTrack( 53 const blink::WebMediaStreamTrack& track) OVERRIDE; 54 55 virtual blink::WebAudioSourceProvider* 56 createWebAudioSourceFromMediaStreamTrack( 57 const blink::WebMediaStreamTrack& track) OVERRIDE; 58 59 60 virtual void didCreateMediaStream( 61 blink::WebMediaStream& stream) OVERRIDE; 62 63 virtual bool didAddMediaStreamTrack( 64 const blink::WebMediaStream& stream, 65 const blink::WebMediaStreamTrack& track) OVERRIDE; 66 67 virtual bool didRemoveMediaStreamTrack( 68 const blink::WebMediaStream& stream, 69 const blink::WebMediaStreamTrack& track) OVERRIDE; 70 71 // RenderProcessObserver implementation. 72 virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE; 73 74 void OnGetSourcesComplete(int request_id, 75 const content::StreamDeviceInfoArray& devices); 76 77 // |rtc_factory_| is a weak pointer and is owned by the RenderThreadImpl. 78 // It is valid as long as RenderThreadImpl exist. 79 PeerConnectionDependencyFactory* rtc_factory_; 80 81 // A strictly increasing id that's used to label incoming GetSources() 82 // requests. 83 int next_request_id_; 84 85 typedef std::map<int, blink::WebMediaStreamTrackSourcesRequest> RequestMap; 86 // Maps request ids to request objects. 87 RequestMap requests_; 88 89 DISALLOW_COPY_AND_ASSIGN(MediaStreamCenter); 90 }; 91 92 } // namespace content 93 94 #endif // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_CENTER_H_ 95