commit 6144b8422bb3b99cdd0f292674d129fa49a816fa
author Philipp Hancke <philipp.hancke@googlemail.com> Fri Jun 04 11:49:27 2021
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Wed Aug 11 12:00:13 2021
tree 0e11e7b7ca5c951dc3423ef0a4232967abd8a3d2
parent 221fa4405ca06b3a82f874da16b8e96b974542a2

red: fix renegotiation

If RED is no longer used the send codec needs to be reconfigured.
To test on https://webrtc.github.io/samples/src/content/peerconnection/audio/
run:
  await pc1.setLocalDescription();
  await pc1.setRemoteDescription({type: 'answer', sdp:
        pc1.remoteDescription.sdp.replace('red/48000', 'blue/48000')})
As a result, RED will be turned off and the bitrate will drop.

BUG=webrtc:11640

Change-Id: Icc7a83ae29e67d054399bf42010264e94c32127d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/221360
Commit-Queue: Henrik Lundin <henrik.lundin@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34719}

audio/audio_send_stream.cc

diff --git a/audio/audio_send_stream.cc b/audio/audio_send_stream.cc
index 62dd53d..455bb84 100644
--- a/audio/audio_send_stream.cc
+++ b/audio/audio_send_stream.cc
@@ -701,7 +701,9 @@
       new_config.send_codec_spec->format !=
           old_config.send_codec_spec->format ||
       new_config.send_codec_spec->payload_type !=
-          old_config.send_codec_spec->payload_type) {
+          old_config.send_codec_spec->payload_type ||
+      new_config.send_codec_spec->red_payload_type !=
+          old_config.send_codec_spec->red_payload_type) {
     return SetupSendCodec(new_config);
   }