Intent to ship: setCodecPreferences

[Daniel Baker]

I intend to ship setCodecPreferences for all platforms in Firefox 128.

Summary: The setCodecPreferences method allows applications to disable the negotiation of specific codecs (including RTX/RED/FEC). It also allows an application to cause a remote peer to prefer the codec that appears first in the list for sending. 

Bug for Feature: https://bugzilla.mozilla.org/show_bug.cgi?id=1396922

Standard: 

• https://www.w3.org/TR/webrtc/#dom-rtcrtptransceiver-setcodecpreferences

Platform Coverage: Available on all platforms.

Preference: This WebRTC API will be available by default.

Other Browsers: Other browsers have shipped this feature.

Blink: https://groups.google.com/a/chromium.org/g/blink-dev/c/DRz-uHqPCLw/m/4F6DA2niBAAJ

WebKit: https://developer.apple.com/documentation/safari-technology-preview-release-notes/stp-release-99#Media

Web-platform-tests: WPT tests exist for setCodecPreferences

• https://wpt.fyi/results/webrtc/RTCRtpTransceiver-setCodecPreferences.html