Adding getParameters/setParameters APIs to RtpReceiver.

webrtc/api/mediastreamprovider.h

Index: webrtc/api/mediastreamprovider.h
diff --git a/webrtc/api/mediastreamprovider.h b/webrtc/api/mediastreamprovider.h
index eef92846cbd15c47ce3014f9da8c518c6130cf71..c0666afd825e9df265eb1e1c2cda9d31db7ea6e2 100644
--- a/webrtc/api/mediastreamprovider.h
+++ b/webrtc/api/mediastreamprovider.h
@@ -64,9 +64,14 @@ class AudioProviderInterface {
       uint32_t ssrc,
       std::unique_ptr<webrtc::AudioSinkInterface> sink) = 0;
 
-  virtual RtpParameters GetAudioRtpParameters(uint32_t ssrc) const = 0;
-  virtual bool SetAudioRtpParameters(uint32_t ssrc,
-                                     const RtpParameters& parameters) = 0;
+  virtual RtpParameters GetAudioRtpSendParameters(uint32_t ssrc) const = 0;
+  virtual bool SetAudioRtpSendParameters(uint32_t ssrc,
+                                         const RtpParameters& parameters) = 0;
+
+  virtual RtpParameters GetAudioRtpReceiveParameters(uint32_t ssrc) const = 0;
+  virtual bool SetAudioRtpReceiveParameters(
+      uint32_t ssrc,
+      const RtpParameters& parameters) = 0;

[pthatcher1, 2016/05/13 18:41:53]

Not blocking this CL, but can we just skip to giving an RtpSender/RtpReceiever a
BaseChannel directly instead of having it go through this interface?  

[Taylor Brandstetter, 2016/05/13 19:09:11]

I'd prefer to do that in a separate CL, so it doesn't block this CL and it won't
cause this CL to be reverted if it causes a problem.

But it does seem like it wouldn't be too hard. I'll add it to my todo list.

 
  protected:
   virtual ~AudioProviderInterface() {}
@@ -89,9 +94,14 @@ class VideoProviderInterface {
                             bool enable,
                             const cricket::VideoOptions* options) = 0;
 
-  virtual RtpParameters GetVideoRtpParameters(uint32_t ssrc) const = 0;
-  virtual bool SetVideoRtpParameters(uint32_t ssrc,
-                                     const RtpParameters& parameters) = 0;
+  virtual RtpParameters GetVideoRtpSendParameters(uint32_t ssrc) const = 0;
+  virtual bool SetVideoRtpSendParameters(uint32_t ssrc,
+                                         const RtpParameters& parameters) = 0;
+
+  virtual RtpParameters GetVideoRtpReceiveParameters(uint32_t ssrc) const = 0;
+  virtual bool SetVideoRtpReceiveParameters(
+      uint32_t ssrc,
+      const RtpParameters& parameters) = 0;
 
  protected:
   virtual ~VideoProviderInterface() {}