Intent to ship: MediaStreamTrack::getCapabilities

[Daniel Baker]

I intend to ship getCapabilities in MediaStreamTrack for all platforms in Firefox 132.

Summary: The getCapabilities method allows applications to gather the media capabilities supported for the MediaStreamTrack.

Bug for Feature: https://bugzilla.mozilla.org/show_bug.cgi?id=1179084

Standard: 

• https://www.w3.org/TR/mediacapture-streams/#dom-mediastreamtrack-getcapabilities

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/h4sCuIqb_78/m/Dcx-XuOTCAAJ

WebKit: https://github.com/mdn/browser-compat-data/pull/7938

Web-platform-tests: WPT tests exist for setCodecPreferences

• https://wpt.fyi/results/mediacapture-image/MediaStreamTrack-getCapabilities.https.html

[Daniel Baker]

Correction to WPT:

Web-platform-tests: WPT tests exist for MediaStreamTrack::getCapabilities.

https://wpt.fyi/results/mediacapture-streams/MediaStreamTrack-getCapabilities.https.html