AudioCodingModule: Specify decoders using SdpAudioFormat

webrtc/modules/audio_coding/neteq/include/neteq.h

Index: webrtc/modules/audio_coding/neteq/include/neteq.h
diff --git a/webrtc/modules/audio_coding/neteq/include/neteq.h b/webrtc/modules/audio_coding/neteq/include/neteq.h
index 8520905b1097b1e6e0c13b7ce57dcfd8ee58275d..5b17e128d8f8bd1b8bcef3f2f6248fcad41b5351 100644
--- a/webrtc/modules/audio_coding/neteq/include/neteq.h
+++ b/webrtc/modules/audio_coding/neteq/include/neteq.h
@@ -178,6 +178,11 @@ class NetEq {
                                       const std::string& codec_name,
                                       uint8_t rtp_payload_type) = 0;
 
+  // Associates |rtp_payload_type| with the given codec, which NetEq will
+  // instantiate when it needs it. Returns true iff successful.
+  virtual bool RegisterPayloadType(int rtp_payload_type,
+                                   const SdpAudioFormat& audio_format) = 0;
+
   // Removes |rtp_payload_type| from the codec database. Returns 0 on success,
   // -1 on failure.
   virtual int RemovePayloadType(uint8_t rtp_payload_type) = 0;