AudioCodingModule: Specify decoders using SdpAudioFormat

webrtc/modules/audio_coding/include/audio_coding_module.h

Index: webrtc/modules/audio_coding/include/audio_coding_module.h
diff --git a/webrtc/modules/audio_coding/include/audio_coding_module.h b/webrtc/modules/audio_coding/include/audio_coding_module.h
index fc8ae1ed513cb5098c2406f09a4d63a2e1f9720a..946ad1d82ad93bd7feeedcb278f8c189143c3f3e 100644
--- a/webrtc/modules/audio_coding/include/audio_coding_module.h
+++ b/webrtc/modules/audio_coding/include/audio_coding_module.h
@@ -479,6 +479,11 @@ class AudioCodingModule {
   //
   virtual int32_t PlayoutFrequency() const = 0;
 
+  // Registers a decoder for the given payload type. Returns true iff
+  // successful.
+  virtual bool RegisterReceiveCodec(int rtp_payload_type,
+                                    const SdpAudioFormat& audio_format) = 0;
+
   ///////////////////////////////////////////////////////////////////////////
   // int32_t RegisterReceiveCodec()
   // Register possible decoders, can be called multiple times for