[FFmpeg-devel] [PATCH] avcodec: Pass the HDR10+ metadata to the packet side data in VP9 encoder

[Mohammad Izadi]

On Thu, Jun 17, 2021 at 1:04 PM James Zern <jzern-at-google.com at ffmpeg.org>
wrote:

> On Wed, Jun 16, 2021 at 3:53 PM Mohammad Izadi
> <izadi-at-google.com at ffmpeg.org> wrote:
> >
> > HDR10+ metadata is stored in the bit stream for HEVC. The story is
> different for VP9 and cannot store the metadata in the bit stream. HDR10+
> should be passed to packet side data an stored in the container (mkv) for
> VP9.
> >
> > This CL is taking HDR10+ from AVFrame side data in libvpxenc and is
> passing it to the AVPacket side data.
> > ---
> >  doc/APIchanges         |  2 +
> >  libavcodec/avpacket.c  |  1 +
> >  libavcodec/decode.c    |  1 +
> >  libavcodec/libvpxenc.c | 91 ++++++++++++++++++++++++++++++++++++++++++
> >  libavcodec/packet.h    |  8 ++++
> >  libavcodec/version.h   |  4 +-
> >  6 files changed, 105 insertions(+), 2 deletions(-)
> >
> > [...]
> > +
> > +static av_cold void free_hdr10_plus_fifo(AVFifoBuffer **fifo)
> > +{
> > +    FrameHDR10Plus frame_hdr10_plus;
> > +    while (av_fifo_size(*fifo) >= sizeof(FrameHDR10Plus)) {
> > +        av_fifo_generic_read(*fifo, &frame_hdr10_plus,
> sizeof(FrameHDR10Plus), NULL);
>
> use sizeof(frame_hdr10_plus) in these two cases
>
Done

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