Support for two audio codec lists down into WebRtcVoiceEngine.

webrtc/media/engine/webrtcvoiceengine.cc

 /*
  *  Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 908 matching lines @@
   return true;
 }
 
 int WebRtcVoiceEngine::GetInputLevel() {
   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
   unsigned int ulevel;
   return (voe_wrapper_->volume()->GetSpeechInputLevel(ulevel) != -1) ?
       static_cast<int>(ulevel) : -1;
 }
 
-const std::vector<AudioCodec>& WebRtcVoiceEngine::codecs() {
+const std::vector<AudioCodec>& WebRtcVoiceEngine::send_codecs() const {
   RTC_DCHECK(signal_thread_checker_.CalledOnValidThread());
   return codecs_;
 }
+
+const std::vector<AudioCodec>& WebRtcVoiceEngine::recv_codecs() const {
+  RTC_DCHECK(signal_thread_checker_.CalledOnValidThread());
+  return codecs_;
+}
 
 RtpCapabilities WebRtcVoiceEngine::GetCapabilities() const {
   RTC_DCHECK(signal_thread_checker_.CalledOnValidThread());
   RtpCapabilities capabilities;
   capabilities.header_extensions.push_back(RtpHeaderExtension(
       kRtpAudioLevelHeaderExtension, kRtpAudioLevelHeaderExtensionDefaultId));
   capabilities.header_extensions.push_back(
       RtpHeaderExtension(kRtpAbsoluteSenderTimeHeaderExtension,
                          kRtpAbsoluteSenderTimeHeaderExtensionDefaultId));
   if (webrtc::field_trial::FindFullName("WebRTC-Audio-SendSideBwe") ==
@@ skipping 1616 matching lines @@
     }
   } else {
     LOG(LS_INFO) << "Stopping playout for channel #" << channel;
     engine()->voe()->base()->StopPlayout(channel);
   }
   return true;
 }
 }  // namespace cricket
 
 #endif  // HAVE_WEBRTC_VOICE