Pass SdpAudioFormat through Channel, without converting to CodecInst

webrtc/audio/audio_receive_stream.cc

Index: webrtc/audio/audio_receive_stream.cc
diff --git a/webrtc/audio/audio_receive_stream.cc b/webrtc/audio/audio_receive_stream.cc
index 8da0616f1d3eb4f531361daf0e16ab5e7faebec9..3d9dded58311b30bdb21bab62aac430603e63755 100644
--- a/webrtc/audio/audio_receive_stream.cc
+++ b/webrtc/audio/audio_receive_stream.cc
@@ -101,6 +101,10 @@ AudioReceiveStream::AudioReceiveStream(
 
   channel_proxy_->RegisterExternalTransport(config.rtcp_send_transport);
 
+  for (const auto& dec : config.decoder_map) {
+    channel_proxy_->SetRecPayloadType(dec.first, dec.second);
+  }
+
   for (const auto& extension : config.rtp.extensions) {
     if (extension.uri == RtpExtension::kAudioLevelUri) {
       channel_proxy_->SetReceiveAudioLevelIndicationStatus(true, extension.id);