[FFmpeg-devel] [PATCH v9 4/4] avcodec/h264: create user data unregistered SEI side data for H.264

[Anton Khirnov]

Quoting James Almer (2020-03-17 17:36:01)
> On 3/17/2020 1:05 PM, Kieran Kunhya wrote:
> > On Tue, 17 Mar 2020 at 11:25, <lance.lmwang at gmail.com> wrote:
> > 
> >> From: Limin Wang <lance.lmwang at gmail.com>
> >>
> >> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> >>
> > 
> > I've seen whole planes (e.g Alpha) taking up 10s or 100s of KB put in SEI,
> > do we really want to export this all as side data?
> 
> Frame side data is reference counted, so it shouldn't be an issue.

Since this is unlikely to be useful generically - you have to know
exactly what's in there - perhaps we should export it only if the caller
requests it through some AV_CODEC_EXPORT_DATA flag.

-- 
Anton Khirnov