W3C home > Mailing lists > Public > public-colorweb@w3.org > October 2021

Re: Exposing HDR metadata in bitstreams through WebCodecs API

From: Pierre-Anthony Lemieux <pal@sandflow.com>
Date: Mon, 25 Oct 2021 19:59:11 -0700
Message-ID: <CAF_7JxBO8ebwX9nXfzD=mTC5SzBA7cMOGSvqTRv48H=mLz3tng@mail.gmail.com>
To: Lars Borg <borg@adobe.com>
Cc: "public-colorweb@w3.org" <public-colorweb@w3.org>
Hi Lars,

Yes, VUI (Annex E at [1]) is that kind of information... although in
that particular case I would think it would already be handled by the
WebCodecs API since it involves basic information like aspect ratio,
transfer function, etc. No harm in listing it though.

[1] https://www.itu.int/rec/T-REC-H.265-202108-I/en

Best,

-- Pierre

On Mon, Oct 25, 2021 at 6:44 PM Lars Borg <borg@adobe.com> wrote:
>
> Are you referring to VUI metadata in HEVC/AVC?
>
> Lars
>
> ´╗┐On 10/25/21, 12:39 PM, "Pierre-Anthony Lemieux" <pal@sandflow.com> wrote:
>
>     Good morning/evening,
>
>     It was pointed out earlier today that now would be a good time to
>     identify any HDR/WCG metadata present at the video codec bitstream
>     level (as opposed to metadata at the container level), so that the
>     metadata can be exposed through the WebCodecs API.
>
>     Please reply to this thread if any such metadata comes to mind.
>
>     Best,
>
>     -- Pierre
>
>
Received on Tuesday, 26 October 2021 02:59:36 UTC

This archive was generated by hypermail 2.4.0 : Tuesday, 26 October 2021 02:59:41 UTC