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Introduce the possiblity to expose microphone/camera state via MediaStreamTrack muted state #313

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Jan 22, 2024
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Introduce the possiblity to expose microphone/camera state via MediaStreamTrack muted state #313

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13 changes: 13 additions & 0 deletions index.bs
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Expand Up @@ -82,6 +82,10 @@ urlPrefix: https://www.w3.org/TR/permissions-policy-1/; spec: PermissionsPolicy
urlPrefix: https://html.spec.whatwg.org/multipage/dom.html; spec: dom
type: dfn
text: permissions policy; url:#concept-document-permissions-policy
urlPrefix: https://www.w3.org/TR/mediacapture-streams/; spec: mediacapture-main
type: dfn
text: MediaStreamTrack muted state; url:#track-muted
text: set MediaStreamTrack muted state; url:#set-track-muted
Comment on lines +85 to +88
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The [=muted=] concept is exported, but it's done wrongly in mediacapture-streams. Can we fix that? @jan-ivar maybe?

It should be something like <dfn class="export" for="MediaStreamTrack">muted state</dfn> or something similar.

Same with set MediaStreamTrack muted state algorithm. We shouldn't need to be hard linking these.

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I filed w3c/mediacapture-main#985, I'll update the spec here when this gets fixed in media capture-main

</pre>

<h2 id="introduction">Introduction</h2>
Expand Down Expand Up @@ -587,6 +591,15 @@ conforming IDL fragments, as described in the Web IDL specification. [[!WEBIDL]]
for=MediaSessionAction>hangup</a> <a>media session actions</a> if none was
provided for the <a>active media session</a>.
</p>
<p>
A user agent MAY expose microphone and camera state to web pages via <a>
MediaStreamTrack muted state</a> in addition to
{{MediaSessionAction/togglemicrophone}} or
{{MediaSessionAction/togglecamera}} [=media session action=]. In that
case, the user agent MUST execute the corresponding
{{MediaSessionActionHandler}} before running, as different tasks, the
steps defined to [=set MediaStreamTrack muted state=].
</p>

<p class=note>
A page should only register a {{MediaSessionActionHandler}} for a <a>media
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