Wire up currently-received video codec to stats.

talk/media/webrtc/webrtcvideoengine2.cc

Index: talk/media/webrtc/webrtcvideoengine2.cc
diff --git a/talk/media/webrtc/webrtcvideoengine2.cc b/talk/media/webrtc/webrtcvideoengine2.cc
index e7701a16558ff94d33d866a39e4ce656bd1f4767..ea49cf264bbcc2a6bdcbdf9e362009c89abc6429 100644
--- a/talk/media/webrtc/webrtcvideoengine2.cc
+++ b/talk/media/webrtc/webrtcvideoengine2.cc
@@ -2617,6 +2617,14 @@ WebRtcVideoChannel2::WebRtcVideoReceiveStream::GetVideoReceiverInfo() {
   info.min_playout_delay_ms = stats.min_playout_delay_ms;
   info.render_delay_ms = stats.render_delay_ms;
 
+  // Find what codec we're currently receiving.
+  for (const webrtc::VideoReceiveStream::Decoder& decoder : config_.decoders) {
+    if (decoder.payload_type == stats.current_payload_type) {
+      info.codec_name = decoder.payload_name;
+      break;
+    }
+  }

[pthatcher1, 2015/08/27 16:50:50]

Would be easier to read with a helper method, something like
GetReceiveCodecNameFromPayloadType.

[pbos-webrtc, 2015/08/28 10:41:19]

Done.

+
   info.firs_sent = stats.rtcp_packet_type_counts.fir_packets;
   info.plis_sent = stats.rtcp_packet_type_counts.pli_packets;
   info.nacks_sent = stats.rtcp_packet_type_counts.nack_packets;