+1. Would you mind also filing gecko and webkit positions? I expect them
to be positive, given the informal signals you have in the spec PRs
already - but this also lets them know we're moving ahead with shipping.
Thanks - Mike
On 5/1/24 11:51 AM, Alex Russell wrote:
hey Eugene,
This is an exciting an useful addition! Have you looked into other
platform APIs that could benefit from being able to explicitly specify
intermediate format hinting and/or transformation? It's a place where
(had the TAG been consulted) I would have expected to see a larger
chain of additions to make this work in other areas, or at least a
discussion of why they aren't (or are?) being pursued. Have you looked
into that?
Best,
Alex
On Tuesday, April 30, 2024 at 3:51:01 PM UTC-7 Eugene Zemtsov wrote:
> Can you please request reviews for privacy, security,
enterprise, etc in the chromestatus entry?
Done
On Mon, Apr 29, 2024 at 7:44 AM Mike Taylor
<miketa...@chromium.org> wrote:
Can you please request reviews for privacy, security,
enterprise, etc in the chromestatus entry?
On 4/25/24 6:19 PM, 'Eugene Zemtsov' via blink-dev wrote:
Contact emails
ezemt...@google.com
Explainer
https://gist.github.com/Djuffin/9e2f98025ead49998524510cfeed8d33
<https://gist.github.com/Djuffin/9e2f98025ead49998524510cfeed8d33>
Specification
https://www.w3.org/TR/webcodecs/#dom-videoframe-copyto
<https://www.w3.org/TR/webcodecs/#dom-videoframe-copyto>
Summary
VideoFrame.copyTo() can convert pixel data to RGB pixel
format Converting YUV video frames to RGB is often required
for processing them in libraries like TensorFlow.js and
OpenCV.js. Previously the only possible way to achieve this
was rendering the frame on a canvas. Specifying
VideoFrameCopyToOptions.format and
VideoFrameCopyToOptions.colorSpace makes it possible to
convert frames to RGB pixel formats by calling
VideoFrame.copyTo() without having to use an extra canvas.
Blink component
Blink>Media>WebCodecs
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EMedia%3EWebCodecs>
Initial public proposal
https://github.com/w3c/webcodecs/issues/92
<https://github.com/w3c/webcodecs/issues/92>
TAG review
N/A since the change is minor
Risks
Interoperability and Compatibility
None
/Gecko/: Positive
(https://github.com/w3c/webcodecs/pull/754#pullrequestreview-2008590591
<https://github.com/w3c/webcodecs/pull/754#pullrequestreview-2008590591>)
/WebKit/: Positive TPAC 2023. Media working group session.
/Web developers/:
https://github.com/w3c/webcodecs/issues/92#issuecomment-1594083978
<https://github.com/w3c/webcodecs/issues/92#issuecomment-1594083978>
/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?
None
Debuggability
None
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes
https://wpt.fyi/results/webcodecs
<https://wpt.fyi/results/webcodecs> videoFrame-copyTo-rgb.any.js
Estimated milestones
Shipping on desktop 126
Shipping on Android 126
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/4668827056209920
<https://chromestatus.com/feature/4668827056209920>
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Thanks,
Eugene Zemtsov.
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