7145a1421b
along the lines of RTX handling but with limited support for missing fmtp lines because of video/red. BUG=webrtc:13178 Change-Id: Ia866c0e857da6da2ef1e4b81b51f90f534c7bb83 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/231948 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35107}