I see that WebKit raised an API concern around detectability
<https://github.com/WebKit/standards-positions/issues/341#issuecomment-2099746809>.
In your reply, you said "we should consider...". Has that consideration
happened, perhaps as follow-up work? :)
On 5/8/24 4:05 PM, Eugene Zemtsov wrote:
This feature has Privacy, Security, Enterprise, and Debuggability
approvals. Webkit gave a positive signal.
Any objections or questions from the API owners?
On Wed, May 1, 2024 at 4:26 PM Eugene Zemtsov <ezemt...@google.com> wrote:
I've filed issues for TAG review and firefox and webkit positions.
> Have you looked into other platform APIs that could benefit
from being able to explicitly specify intermediate format hinting
and/or transformation?
I don't think this kind of review can be done for all web APIs by
one person. It's up to spec editors in each area to identify these
small changes that improve dev experience and performance.
For media related things:
- VideoFrame is a versatile tool that can be created from
HTMLOrSVGImageElement, HTMLVideoElement, HTMLCanvasElement,
ImageBitmap,
OffscreenCanvaswithout a copy. In a way this change
extends variety of export formatsfor all of them.
So lots of things can be exported to RGB bitmaps without a
canvas now.
- AudioData has a way to be exported into different sampling formats.
On Wed, May 1, 2024 at 9:41 AM Mike Taylor
<miketa...@chromium.org> wrote:
+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
Specification
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
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)
/WebKit/: Positive TPAC 2023. Media working group
session.
/Web developers/:
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
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
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Thanks,
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