use sessionID for CNAME to allow client to sync A/V#188
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M-ZubairAhmed
approved these changes
Jan 19, 2026
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Summary
Audio and video are currently not synced properly in many 1:1 video calls. The RTP CNAME of the audio and video streams are currently each set to a random number, hence the browser doesn't know the audio and video streams are from the same source and doesn't try to synchronize. Using the source sessionID for CNAME in both audio and video tracks should fix the sync issues.
Ticket Link
https://mattermost.atlassian.net/browse/MM-67053