LGTM to experiment from M114 to M117 inclusive.
On 3/27/23 8:02 AM, Bhaumik, Rijubrata wrote:
*Contact emails*
[email protected] <mailto:[email protected]>,
[email protected] <mailto:[email protected]>,
[email protected] <mailto:[email protected]>, [email protected]
<mailto:[email protected]>
*Explainer*
https://github.com/riju/backgroundBlur/blob/main/explainer.md
<https://github.com/riju/backgroundBlur/blob/main/explainer.md>
*Specification*
https://w3c.github.io/mediacapture-extensions/#exposing-mediastreamtrack-source-background-blur-support
<https://w3c.github.io/mediacapture-extensions/#exposing-mediastreamtrack-source-background-blur-support>
https://w3c.github.io/mediacapture-extensions/#exposing-change-of-mediastreamtrack-configuration
<https://w3c.github.io/mediacapture-extensions/#exposing-change-of-mediastreamtrack-configuration>
*Summary*
The Background Blur API allows web developers to use the native
platform's API for camera background segmentation. As Background Blur
has become one of the most used features on video conferencing apps
like Teams, Meet, Zoom, and Webex, we want web apps to leverage the
same platform APIs without completely relying on ML frameworks like
TensorFlow.js, Mediapipe, WASM libraries or cloud-based solutions.
*Blink component*
Blink>ImageCapture
*TAG review*
https://github.com/w3ctag/design-reviews/issues/826
<https://github.com/w3ctag/design-reviews/issues/826>
*TAG review status*
Pending
*Risks*
*External signals*
Gecko: Positive
(https://github.com/mozilla/standards-positions/issues/658
<https://github.com/mozilla/standards-positions/issues/658>)
WebKit: Positive
(https://github.com/WebKit/standards-positions/issues/5
<https://github.com/WebKit/standards-positions/issues/5>)
Web developers: Positive
(https://twitter.com/quicksave2k/status/1638908125385220096
<https://twitter.com/quicksave2k/status/1638908125385220096>)
*Debuggability*
No specific DevTools changes are required. This feature is treated
like any other JS method.
*Ongoing technical constraints*
None.
*Will this feature be supported on all six Blink platforms (Windows,
Mac, Linux, ChromeOS, Android, and Android WebView)?*
No - Supported on ChromeOS, Windows, and macOS, due to the feature’s
reliance on platform APIs.
*Is this feature fully tested by web-platform-tests?*
Yes.
https://wpt.fyi/results/mediacapture-extensions/GUM-backgroundBlur.https.html?label=experimental&label=master&aligned
<https://wpt.fyi/results/mediacapture-extensions/GUM-backgroundBlur.https.html?label=experimental&label=master&aligned>
*Flag name*
--enable-blink-features=MediaCaptureBackgroundBlur
*Requires code in //chrome?*
No.
*Tracking bug*
https://crbug.com/1338665 <https://crbug.com/1338665>
*Estimated milestone*
We hope to start the Origin Trial sometime during M114 beta. We plan
to continue the Origin Trial until at least M117 to give developers
time to test the API and provide feedback.
*Goals for experimentation*
Large customers like Meet can evaluate this API on a big number of
users. We can learn if the API in its present form satisfies the needs
of the users, or do we need something more to wow the users. One
concrete example would be boolean vs enumeration. Right now, BG Blur
only uses a bool which is an ON/OFF switch, but ChromeOS and Windows
11 offer shallow focus also where the blur intensity is more than the
present implementation. We wanted to start off with something simple,
get feedback and iterate on building something which the majority wants.
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5147589575442432
<https://chromestatus.com/feature/5147589575442432>
*Links to previous Intent discussions*
https://groups.google.com/a/chromium.org/g/blink-dev/c/3ke9hgaREwM
<https://groups.google.com/a/chromium.org/g/blink-dev/c/3ke9hgaREwM>
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