Backport of "rtpmanager/rtsession: data race leading to critical warnings" into 1.22
requested to merge tpm/gstreamer:backport-mr-4555-into-1.22-rtpsession-generate_rtcp-datarace into 1.22
Backport of !4555 (merged) "rtpmanager/rtsession: data race leading to critical warnings".
Commits:
- 6675ed9a rtpmanager/rtsession: data race leading to critical warnings