Backport of "webrtcbin: Allow session level setup attribute in SDP" into 1.24
requested to merge gstreamer-backport-bot/gstreamer:mr-6930-backport-into-1.24-webrtc-setup-session-attr into 1.24
Backport of !6930 (merged) "webrtcbin: Allow session level setup attribute in SDP".
Commits:
- 299a0009 webrtcbin: Allow session level setup attribute in SDP