Contact [email protected]

Explainer
https://docs.google.com/document/d/1OmuV1W4f2UvToeNxUVGHv8NcFuL63r94gWwz9i_-VBc/edit?usp=sharing

Specificationhttps://github.com/w3c/mediacapture-screen-share/pull/164/files

Summary

Consider a Web application APP which is display-capturing a tab TAB. We add
a mechanism by which APP may control whether the audio playing in TAB would
be played out of the user’s local speakers.


Blink componentBlink
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink>

TAG reviewN/A. This is just an addition of a single flag to an existing
dictionary, following well-known patterns.

TAG review statusNot applicable

Risks


Interoperability and Compatibility

*Gecko*: Positive (https://github.com/mozilla/standards-positions/issues/641)
Jan-Ivar Bruaroey from Mozilla, and Youenn Fablet from Apple, have both
collaborated with us closely in shaping this PR. They have then approved
merging this PR into w3c/mediacapture-screen-share. This is implicit
support, so I'd consider it POSITIVE even though, as of the time of this
writing, the official request for position has not yet been answered.

*WebKit*: Positive (
https://lists.webkit.org/pipermail/webkit-dev/2022-May/032252.html)
Jan-Ivar Bruaroey from Mozilla, and Youenn Fablet from Apple, have both
collaborated with us closely in shaping this PR. They have then approved
merging this PR into w3c/mediacapture-screen-share. This is implicit
support, so I'd consider it POSITIVE even though, as of the time of this
writing, the official request for position has not yet been answered.

*Web developers*: Positive

   - This was requested by multiple Web-dev teams inside of Google.
   - External developers have asked for a different change in Chrome, which
   we'll be able to uncontroversially affect only once this API surface is
   shipped - see crbug.com/1317964 for some details.


*Other signals*:

WebView application risks

N/A



Debuggability

N/A


Will this feature be supported on all six Blink platforms (Windows, Mac,
Linux, Chrome OS, Android, and Android WebView)?No. Supported on all
platforms that support getDisplayMedia. (Namely, all desktop platforms.)

Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
?No

Estimated milestones

No milestones specified


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5201258309746688

Links to previous Intent discussionsIntent to prototype:
https://groups.google.com/a/chromium.org/g/blink-dev/c/cANVKeNMHyE

This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.

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