Re: [FFmpeg-devel] [PATCH] avcodec/h264_mp4toannexb: Prepend SPS/PPS to buffering period SEI

[Josh Allmann <joshua.allmann@gmail.com>]

On Tue, 9 Jul 2024 at 12:06, Josh Allmann <joshua.allmann@gmail.com> wrote:
>
> Encoders may emit a buffering period SEI without a corresponding
> SPS/PPS if the SPS/PPS is carried out-of-band, eg with avcc.
>
> During Annex B conversion, this may result in the SPS/PPS being
> inserted *after* the buffering period SEI but before the IDR NAL.
>
> Since the buffering period SEI references the SPS, the SPS/PPS
> needs to come first.
> ---
>
> Notes:
>     v2: Updated FATE test refs
>
>  libavcodec/bsf/h264_mp4toannexb.c          | 13 +++++++++++++
>  tests/ref/fate/h264-bsf-mp4toannexb        |  2 +-
>  tests/ref/fate/h264_mp4toannexb_ticket2991 | 18 +++++++++---------
>  tests/ref/fate/segment-mp4-to-ts           | 12 ++++++------
>  4 files changed, 29 insertions(+), 16 deletions(-)
>

Ping again for review. Looking at the FATE output, this patch fixes a number
of things - see [1] for details

[1] https://ffmpeg.org//pipermail/ffmpeg-devel/2024-July/330912.html
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