Contact emails
[email protected], [email protected]

Explainer
https://github.com/palak8669/mediacapture-screen-share-audio-capture/blob/palak8669-patch-1/audio_selection_explainer.md


Specification
https://w3c.github.io/mediacapture-screen-share/#dom-displaymediastreamoptions-audioselection


Summary
Adds an audioPreference attribute to the DisplayMediaStreamOptions dictionary 
used in the getDisplayMedia API. This hint allows web applications to signal to 
the UA that they prefer audio sharing along with video. This helps developers 
ensure that applications relying on audio capture work seamlessly.


Blink component
Blink>GetDisplayMedia


Web Feature ID
usermedia


Motivation
No information provided


Initial public proposal
No information provided


TAG review
No information provided


TAG review status
Not applicable


Goals for experimentation
None


Risks




Interoperability and Compatibility
No information provided

Gecko: No signal (https://github.com/mozilla/standards-positions/issues/1433) 
Spec PR was approved by Mozilla 
https://github.com/w3c/mediacapture-screen-share/pull/332

WebKit: No signal (https://github.com/WebKit/standards-positions/issues/696) 
Spec PR was approved by WebKit 
https://github.com/w3c/mediacapture-screen-share/pull/332

Web developers: Positive 
(https://github.com/w3c/mediacapture-screen-share-extensions/issues/12) Ask for 
an API to support the targeted use case from developers: 
https://github.com/w3c/mediacapture-screen-share-extensions/issues/12

Other signals:


WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it 
has potentially high risk for Android WebView-based applications?
No information provided



Debuggability
No information provided


Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, 
ChromeOS, Android, and Android WebView)?
No
getDisplayMedia API is not supported on Mobile platforms.


Is this feature fully tested by web-platform-tests?
Yes
WPT: https://wpt.fyi/results/screen-capture/getdisplaymedia.https.html other 
tests: 
chrome/browser/ui/views/desktop_capture/desktop_media_pane_view_unittest.cc, 
chrome/browser/ui/views/desktop_capture/desktop_media_picker_views_unittest.cc


Flag name on about://flags
No information provided


Finch feature name
GetDisplayMediaAudioSelection


Rollout plan
Will ship enabled for all users


Requires code in //chrome?
False


Tracking bug
https://issues.chromium.org/issues/535514300


Launch bug
https://launch.corp.google.com/launch/4483832


Estimated milestones


Shipping on desktop 152

DevTrial on desktop 152




Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop 
issues. Please list open issues (eg links to known github issues in the project 
for the feature specification) whose resolution may introduce web 
compat/interop risk (eg, changing to naming or structure of the API in a 
non-backward-compatible way).
No information provided


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5085785343787008?gate=6159500559122432


This intent message was generated by Chrome Platform Status.

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