Re: WebCodecs and color?

Hi Group,

I co-edit the WebCodecs spec and I keep an eye on this list :).
ImageDecoder is firmly part of our plans. The interface
<https://pr-preview.s3.amazonaws.com/WICG/web-codecs/pull/152.html#image-decoding>
in the PR <https://github.com/w3c/webcodecs/pull/152> is already
implemented in Chrome as part of the WebCodecs origin trial
<https://github.com/w3c/webcodecs#try-it-out-in-chrome-86>. We welcome your
feedback! Feel free to continue discussing in github
<https://github.com/w3c/webcodecs/issues/159#issuecomment-815242049>,
filing new issues as needed.

Best,
Chris

On Thu, Apr 8, 2021 at 6:15 AM Chris Needham <chris.needham@bbc.co.uk>
wrote:

> I agree, and I mentioned our CG’s work in this WebCodecs issue on
> createImageBitmap and VideoFrame:
>
>
>
> https://github.com/w3c/webcodecs/issues/159#issuecomment-815237500
>
>
>
> Image decoding has been discussed and there is an ImageDecoder proposal in
> progress.
>
>
>
> https://github.com/w3c/webcodecs/issues/50
>
> https://github.com/dalecurtis/image-decoder-api/blob/master/explainer.md
>
>
>
> Although WebCodecs is now in the Media WG, it seems that ImageDecoder
> isn’t in WICG as yet.
>
>
>
> Chris
>
>
>
> *From:* Leonard Rosenthol <lrosenth@adobe.com>
> *Sent:* 08 April 2021 13:51
> *To:* public-colorweb@w3.org
> *Subject:* WebCodecs and color?
>
>
>
> I noticed the announcement today (
> https://www.w3.org/blog/news/archives/9003) about the publishing of a
> FPWD of WebCodecs (https://www.w3.org/TR/2021/WD-webcodecs-20210408/).
> My initial reaction was that this seemed like the solution to one of the
> problems we were discussing in our last meeting – how client-side code
> could leverage the existing image encoders/decoders in the UA.   Is anyone
> here a part of that group and could bring to them the idea of adding raster
> image codecs to the mix as well?
>
>
>
> In actually looking at the spec, with an eye towards color & HDR in Video
> encoding/decoding, everything seems to come down to the VideoFrame (
> https://www.w3.org/TR/2021/WD-webcodecs-20210408/#videoframe) – which is
> a bit of a wrapper around our good friend ImageBitmap (
> https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#imagebitmap)
> that we HAVE been discussing vis-à-vis the implications of our proposed HDR
> changes.
>
>
>
> Seems like we should, if it’s not already happening, connect up with this
> group to make sure that our HDR proposals – especially in terms of proposed
> API changes – don’t break their work…and also that perhaps we could
> collaborate on aspects such as the initial comment above.
>
>
>
> Leonard
>
>
>