tree fba8649ee2c573b7a29d8bc825eb1e4c379e0513
parent 62bb58f3eeb3ede4c707d6a8fda26e0c637b3e28
author Philipp Hancke <philipp.hancke@googlemail.com> 1636984498 +0100
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> 1636991338 +0000

setCodecPreferences: dont insert red codec twice

this could happen if setCodecPreferences is used to prefer
red over opus as it is done for red+opus.

BUG=webrtc:13287

Change-Id: I3d61cd8f1a364572bc531a75dcc239c3919138cc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/237800
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Cr-Commit-Position: refs/heads/main@{#35344}