Home | History | Annotate | Download | only in media 
      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 WebMediaStreamCenterClient;
     22 }
     23 
     24 namespace content {
     25 class MediaStreamDependencyFactory;
     26 
     27 class CONTENT_EXPORT MediaStreamCenter
     28     : NON_EXPORTED_BASE(public blink::WebMediaStreamCenter),
     29       public RenderProcessObserver {
     30  public:
     31   MediaStreamCenter(blink::WebMediaStreamCenterClient* client,
     32                     MediaStreamDependencyFactory* factory);
     33   virtual ~MediaStreamCenter();
     34 
     35  private:
     36   virtual bool getMediaStreamTrackSources(
     37       const blink::WebMediaStreamTrackSourcesRequest& request) OVERRIDE;
     38 
     39   virtual void didCreateMediaStreamTrack(
     40       const blink::WebMediaStreamTrack& track) OVERRIDE;
     41 
     42   virtual void didEnableMediaStreamTrack(
     43       const blink::WebMediaStreamTrack& track) OVERRIDE;
     44 
     45   virtual void didDisableMediaStreamTrack(
     46       const blink::WebMediaStreamTrack& track) OVERRIDE;
     47 
     48   virtual void didStopLocalMediaStream(
     49       const blink::WebMediaStream& stream) OVERRIDE;
     50 
     51   virtual bool didStopMediaStreamTrack(
     52       const blink::WebMediaStreamTrack& track) OVERRIDE;
     53 
     54   virtual void didCreateMediaStream(
     55       blink::WebMediaStream& stream) OVERRIDE;
     56 
     57   virtual bool didAddMediaStreamTrack(
     58       const blink::WebMediaStream& stream,
     59       const blink::WebMediaStreamTrack& track) OVERRIDE;
     60 
     61   virtual bool didRemoveMediaStreamTrack(
     62       const blink::WebMediaStream& stream,
     63       const blink::WebMediaStreamTrack& track) OVERRIDE;
     64 
     65   // RenderProcessObserver implementation.
     66   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
     67 
     68   void OnGetSourcesComplete(int request_id,
     69                             const content::StreamDeviceInfoArray& devices);
     70 
     71   // |rtc_factory_| is a weak pointer and is owned by the RenderThreadImpl.
     72   // It is valid as long as  RenderThreadImpl exist.
     73   MediaStreamDependencyFactory* rtc_factory_;
     74 
     75   // A strictly increasing id that's used to label incoming GetSources()
     76   // requests.
     77   int next_request_id_;
     78 
     79   typedef std::map<int, blink::WebMediaStreamTrackSourcesRequest> RequestMap;
     80   // Maps request ids to request objects.
     81   RequestMap requests_;
     82 
     83   DISALLOW_COPY_AND_ASSIGN(MediaStreamCenter);
     84 };
     85 
     86 }  // namespace content
     87 
     88 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_CENTER_H_
     89