VideoTrackAdapter: Add passing frames monitor, notify MSVCS -> MSVTrack(s)

content/renderer/media/media_stream_video_source.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 17 matching lines @@
 class VideoTrackAdapter;
 
 // MediaStreamVideoSource is an interface used for sending video frames to a
 // MediaStreamVideoTrack.
 // http://dev.w3.org/2011/webrtc/editor/getusermedia.html
 // The purpose of this base class is to be able to implement different
 // MediaStreaVideoSources such as local video capture, video sources received
 // on a PeerConnection or a source created in NaCl.
 // All methods calls will be done from the main render thread.
 //
-// When  the first track is added to the source by calling AddTrack
-// the MediaStreamVideoSource implementation calls GetCurrentSupportedFormats.
-// the source implementation must call OnSupportedFormats.
+// When the first track is added to the source by calling AddTrack the
+// MediaStreamVideoSource implementation calls GetCurrentSupportedFormats.
+// The source implementation must call OnSupportedFormats.
 // MediaStreamVideoSource then match the constraints provided in AddTrack with
 // the formats and call StartSourceImpl. The source implementation must call
 // OnStartDone when the underlying source has been started or failed to start.
 class CONTENT_EXPORT MediaStreamVideoSource
     : public MediaStreamSource,
       NON_EXPORTED_BASE(public base::NonThreadSafe) {
  public:
   MediaStreamVideoSource();
   virtual ~MediaStreamVideoSource();
 
@@ skipping 30 matching lines @@
   static const int kDefaultWidth;
   static const int kDefaultHeight;
   static const int kDefaultFrameRate;
 
  protected:
   virtual void DoStopSource() OVERRIDE;
 
   // Sets ready state and notifies the ready state to all registered tracks.
   virtual void SetReadyState(blink::WebMediaStreamSource::ReadyState state);
 
+  // Sets muted state and notifies it to all registered tracks.
+  virtual void SetMutedState(bool state);
+
   // An implementation must fetch the formats that can currently be used by
   // the source and call OnSupportedFormats when done.
   // |max_requested_height| and |max_requested_width| is the max height and
   // width set as a mandatory constraint if set when calling
   // MediaStreamVideoSource::AddTrack. If max height and max width is not set
   // |max_requested_height| and |max_requested_width| are 0.
   virtual void GetCurrentSupportedFormats(
       int max_requested_width,
       int max_requested_height,
       const VideoCaptureDeviceFormatsCB& callback) = 0;
@@ skipping 36 matching lines @@
   // Trigger all cached callbacks from AddTrack. AddTrack is successful
   // if the capture delegate has started and the constraints provided in
   // AddTrack match the format that was used to start the device.
   // Note that it must be ok to delete the MediaStreamVideoSource object
   // in the context of the callback. If gUM fail, the implementation will
   // simply drop the references to the blink source and track which will lead
   // to that this object is deleted.
   void FinalizeAddTrack();
 
   State state_;
+  bool muted_state_;
 
   media::VideoCaptureFormat current_format_;
 
   struct RequestedConstraints {
     RequestedConstraints(MediaStreamVideoTrack* track,
                          const VideoCaptureDeliverFrameCB& frame_callback,
                          const blink::WebMediaConstraints& constraints,
                          const ConstraintsCallback& callback);
     ~RequestedConstraints();
 
@@ skipping 14 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaStreamVideoSource> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoSource);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_