Any new feedback or resolution on this one?

On Fri, Jul 7, 2023 at 5:53 AM Sangwhan Moon <[email protected]> wrote:

> (resending from correct email)
>
> On 2023年07月07日 00時32分12秒 (+09:00), Mike Taylor wrote:
>
> On 7/5/23 8:57 PM, 'Eugene Zemtsov' via blink-dev wrote:
>
> Intent to Implement and Ship: Per-frame quantizer in VideoEncoder
>
> Contact emails
>
> [email protected]
>
> Explainer
>
> None
>
> Specification
>
> https://www.w3.org/TR/webcodecs/#video-encoder-bitrate-mode
>
> Summary
>
> Adds "quantizer" VideoEncoderBitrateMode for VideoEncoder. This allows to
> specify a quantizer parameter for each frame for AV1, VP9, and AVC video
> codecs. The quantizer parameter is set via codec specific extensions for
> VideoEncoderEncodeOptions.
>
> Assuming I know very little about video codecs, what use cases does this
> enable for developers?
>
>
>
> Blink component
>
> Blink>Media>WebCodecs
> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EMedia%3EWebCodecs>
>
> TAG review
>
> None.
>
> Previously WebCodecs API had TAG review as a whole:
>
> https://github.com/w3ctag/design-reviews/issues/612
>
> This is a new addition since that review, but it's a trivial addition
> (IMHO) so a new review request isn't needed.
>
>
> I agree, I don't see anything particularly contentious in the proposal
> that would warrant a full review.
>
>
>
> TAG review status
>
> Not applicable
>
> Risks
>
> Interoperability and Compatibility
>
> Gecko: Neutral (
> https://github.com/mozilla/standards-positions/issues/837#issuecomment-1614666364)
> Paul Adenot (Mozilla) expressed that minor changes to WebCodecs spec don't
> need to go through the full "Request for Mozilla Position" process assuming
> they were approved by the Media Working Group.
>
> WebKit: Positive (https://www.w3.org/2023/03/07-mediawg-minutes.html#t02)
> The issue was discussed on 07 March 2023 by w3c Media working group. Jer
> Noble (Apple) was actively participating and provided input for spec
> details.
>
> Can we request a formal position from WebKit, at least to let them know
> we're intending to ship?
>
>
> Web developers: Positive (https://github.com/w3c/webcodecs/issues/56)
> People ask for this on GitHub
>
> 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?
>
>
>
> Will this feature be supported on all six Blink platforms (Windows, Mac,
> Linux, Chrome OS, Android, and Android WebView)?
>
> Yes
>
> Is this feature fully tested by web-platform-tests
> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
> ?
>
> Yes
>
> Tracking bug
>
> https://bugs.chromium.org/p/chromium/issues/detail?id=1424154
>
> Estimated milestones
>
> Shipping on desktop
>
> 117
>
> Shipping on Android
>
> 117
>
>
>
>
> Link to entry on the Chrome Platform Status
>
> https://chromestatus.com/feature/5783986600673280
>
>
>
>
>
> --
> Thanks,
> Eugene Zemtsov.
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>
>

-- 
Thanks,
Eugene Zemtsov.

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