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[mediacapture-screen-share] Spec-hooks requested (#213)

From: Elad Alon via GitHub <sysbot+gh@w3.org>
Date: Tue, 22 Mar 2022 09:25:49 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issues.opened-1176501567-1647941147-sysbot+gh@w3.org>
eladalon1983 has just created a new issue for https://github.com/w3c/mediacapture-screen-share:

== Spec-hooks requested ==
Implementers working on other specs have requested (e.g. on [this issue](https://github.com/WICG/compute-pressure/issues/82)) that we add some spec-hooks. For example, some behavior might be allowed/forbidden if a document holds a video track that refers to an active screen-capture. I think this is a sensible addition (keeping out-of-scope **how** these hooks will be used). I propose:
* A document is called an "actively screen-capturing document" if that document holds a reference to a "live" video track derived from a call to getDisplayMedia. (In the future - also getViewportMedia.)
* A user agent is called "actively screen-capturing" if any of its fully-active documents is an actively screen-capturing document.

Thoughts? @alvestrand? @jan-ivar? @youennf?

Please view or discuss this issue at https://github.com/w3c/mediacapture-screen-share/issues/213 using your GitHub account

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