Philipp Hancke 7145a1421b red: fix fmtp payload type collision handling
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}
2021-09-28 10:29:54 +00:00
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