tree bf073d6b7c6aaca16d201df87484035dd816d6e3
parent afdbf8e6f881bda6cfe8c8c8c46f2167db8b0b05
author Philipp Hancke <fippo@sip-communicator.org> 1592995962 +0200
committer Commit Bot <commit-bot@chromium.org> 1593066258 +0000

negotiate RED codec for audio

negotiates the RED codec for opus audio behind a field trial
  WebRTC-Audio-Redundancy
This adds the following line to the SDP:
  a=rtpmap:someid RED/48000/2

To test start Chrome with
  --force-fieldtrials=WebRTC-Audio-Red-For-Opus/Enabled

BUG=webrtc:11640

Change-Id: I8fa9fb07d03db5f90cdb08765baaa03d3d0458cc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/176372
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31562}