- From: Jan-Ivar Bruaroey via GitHub <sysbot+gh@w3.org>
- Date: Fri, 23 May 2025 15:16:56 +0000
- To: public-webrtc-logs@w3.org
How about adding to [ยง 17.4 Defining a new source of MediaStreamTrack](https://w3c.github.io/mediacapture-main/getusermedia.html#defining-a-new-source-of-mediastreamtrack) ("At a minimum, a new source of [MediaStreamTrack](https://w3c.github.io/mediacapture-main/getusermedia.html#dom-mediastreamtrack) will need to:"):
- _"for [MediaStreamTrack](https://w3c.github.io/mediacapture-main/getusermedia.html#dom-mediastreamtrack)s of kind `"video"`, define the constrainable properties `width`, `height` and `aspectRatio`, and describe how they work as settings (they need not be constrainable),"_
It probably remains the responsibility of each source spec to define how their constrainable properties work. For instance, [width](https://w3c.github.io/mediacapture-screen-share/#dfn-width) in screen-capture is quite different from
Unsure about frameRate. What would it be for canvas?
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