Propagate AutoMuter interface out to VideoCodingModule

BUG=2436
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2311004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4878 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/video_coding/main/interface/video_coding.h

@@ -579,6 +579,18 @@ public:
 
     // Disables recording of debugging information.
     virtual int StopDebugRecording() = 0;
+
+    // Enables AutoMuter to turn off video when the rate drops below
+    // |threshold_bps|, and turns back on when the rate goes back up above
+    // |threshold_bps| + |window_bps|.
+    virtual void EnableAutoMuting(int threshold_bps, int window_bps) = 0;
+
+    // Disables AutoMuter.
+    virtual void DisableAutoMuting() = 0;
+
+    // Returns true if AutoMuter is engaged and the video has been muted due to
+    // bandwidth limitations; otherwise false.
+    virtual bool VideoMuted() const = 0;
 };
 
 }  // namespace webrtc

webrtc/modules/video_coding/main/source/video_coding_impl.cc

@@ -197,6 +197,18 @@ class VideoCodingModuleImpl : public VideoCodingModule {
     return sender_->StopDebugRecording();
   }
 
+  virtual void EnableAutoMuting(int threshold_bps, int window_bps) {
+    return sender_->EnableAutoMuting(threshold_bps, window_bps);
+  }
+
+  virtual void DisableAutoMuting() {
+    return sender_->DisableAutoMuting();
+  }
+
+  virtual bool VideoMuted() const {
+    return sender_->VideoMuted();
+  }
+
   virtual int32_t InitializeReceiver() OVERRIDE {
     return receiver_->InitializeReceiver();
   }

webrtc/modules/video_coding/main/source/video_coding_impl.h

@@ -95,6 +95,10 @@ class VideoSender {
   int StartDebugRecording(const char* file_name_utf8);
   int StopDebugRecording();
 
+  void EnableAutoMuting(int threshold_bps, int window_bps);
+  void DisableAutoMuting();
+  bool VideoMuted() const;
+
   int32_t TimeUntilNextProcess();
   int32_t Process();
 

webrtc/modules/video_coding/main/source/video_sender.cc

@@ -420,5 +420,20 @@ int VideoSender::StopDebugRecording() {
   return VCM_OK;
 }
 
+void VideoSender::EnableAutoMuting(int threshold_bps, int window_bps) {
+  CriticalSectionScoped cs(_sendCritSect);
+  return _mediaOpt.EnableAutoMuting(threshold_bps, window_bps);
+}
+
+void VideoSender::DisableAutoMuting() {
+  CriticalSectionScoped cs(_sendCritSect);
+  return _mediaOpt.DisableAutoMuting();
+}
+
+bool VideoSender::VideoMuted() const {
+  CriticalSectionScoped cs(_sendCritSect);
+  return _mediaOpt.video_muted();
+}
+
 }  // namespace vcm
 }  // namespace webrtc