Add WebRTC scalabilityMode compatibility data - #30319
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caugner
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Sep 3, 2026
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- Firefox and Safari are recorded as unsupported for this specific encoding parameter.
The issue mentioned the Firefox and Safari bug, including which Safari version started supporting this.
caugner
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Sep 15, 2026
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The Firefox bug is still missing.
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Summary
Add compatibility data for the
RTCRtpEncodingParameters.scalabilityModeparameter used by WebRTC SVC.The new data covers both API paths where the parameter can be provided:
RTCRtpSender.setParameters()viaparameters.encodingsRTCPeerConnection.addTransceiver()viainit.sendEncodingsTest results and supporting details
npm run formatpassed.git diff --checkpassed.Supporting specification:
https://w3c.github.io/webrtc-svc/#dom-rtcrtpencodingparameters-scalabilitymode
Related issues
Fixes #25720