- From: Wan-Teh Chang <wtc@google.com>
- Date: Mon, 25 Oct 2021 18:59:20 -0700
- To: Pierre-Anthony Lemieux <pal@sandflow.com>
- Cc: public-colorweb@w3.org
Hi Pierre-Anthony, On Mon, Oct 25, 2021 at 3:39 PM Pierre-Anthony Lemieux <pal@sandflow.com> wrote: > > 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. AV1 has two HDR metadata types: METADATA_TYPE_HDR_CLL and METADATA_TYPE_HDR_MDCV. See the AV1 specification: https://aomediacodec.github.io/av1-spec/av1-spec.pdf In addition, the AV1 metadata type METADATA_TYPE_ITUT_T35 is extensible and can be used to carry HDR10+ dynamic metadata. See http://downloads.aomedia.org/assets/pdf/AV1-HDR10-Implementation-Note_1202.pdf Wan-Teh Chang
Received on Tuesday, 26 October 2021 01:59:43 UTC