Philipp Hancke 815522782a sdp: add rtcp-fb:* lines for common feedback
which potentially allows switching to that pattern in the future.
Video FEC mechanisms (ulpfec, flexfec-03, RED) that currently
do not have any feedback parameters but will still be considered "common" and feedback may be sent for them.

For audio this causes rtcp-feedback to be sent for G711 and G722 if negotiated.

BUG=webrtc:14802

Change-Id: I54852d39e176f918d4b36462526ceb40617b8fbe
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/290702
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39224}
2023-01-30 10:20:50 +00:00
..
2023-01-16 14:36:06 +00:00
2022-05-12 18:34:33 +00:00
2022-01-18 13:46:37 +00:00