Re: [FFmpeg-devel] [PATCH 0/3] avcodec: move HDR10 (MDCV/CLL) SEI handling to h2645_sei

From: "Jan Ekström" <jeebjp@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH 0/3] avcodec: move HDR10 (MDCV/CLL) SEI handling to h2645_sei
Date: Sat, 15 Jul 2023 12:11:19 +0300
Message-ID: <CAEu79Sb2ao0-+tyx+F1019aBoKAJ8tVLQEE95788z43ztt9QaQ@mail.gmail.com> (raw)
In-Reply-To: <20230712183252.302971-1-jeebjp@gmail.com>

On Wed, Jul 12, 2023 at 9:33 PM Jan Ekström <jeebjp@gmail.com> wrote:
>
> This allows parsing code to be re-utilized from H.264, as well as probably
> from VVC in the future.
>
> This additionally eases verification of the AVCodecContext side data patch
> set, which includes libx264 integration for HDR10 side data.
>
> Notes:
> * At least in ffprobe and FATE tests the code works even without the additional
>   sync in "update_thread_context" in either HEVC or H.264 (as the viewing
>   environment SEI patch set showed earlier). As the current HEVC code had such
>   sync, I kept it and added a similar thing to the H.264 decoder.
> ** If this is required for all things, the sync should possibly be added to
>    ff_h2645_sei_ctx_replace? As currently both the HEVC and H.264 decoders are
>    synchronizing various structs by themselves in addition to calling
>    ctx_replace.
> * I did not add a simlar decrementing logic to the H.264 decoder for now,
>   as not sure how it should be handled exactly.
>
> Jan

Ping for the set.

Jan
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