Re: [FFmpeg-devel] [PATCH] avformat/mov: Add support for demuxing still HEIC images

[Vittorio Giovara <vittorio.giovara@gmail.com>]

On Wed, Oct 4, 2023 at 12:02 AM Vignesh Venkat via ffmpeg-devel <
ffmpeg-devel@ffmpeg.org> wrote:

> On Tue, Oct 3, 2023 at 6:32 PM Vittorio Giovara
> <vittorio.giovara@gmail.com> wrote:
> >
> > On Tue, Oct 3, 2023 at 8:30 PM Steven Liu <lingjiujianke@gmail.com>
> wrote:
> >
> > > > > 2.42.0.515.g380fc7ccd1-goog
> > > > >
> > > >
> > > > Any comments/objections on merging this?
> > >
> > >
> > > Can this patch support tiled hevc coded or sequence heif？=
> > >
> >
> > I believe that will be possible only after AVStreamGroup is implemented.
> >
>
> Yes, this patch only supports still HEIC images that don't have alpha
> and grids (tiles).
>
> Tiles and Alpha support will be possible only after AVStreamGroup is
> implemented. I will look into HEIC sequences in a follow-up.
>
> > Vignesh is there a sample available? Could we add a test?
>
> I tested it from the files in
> https://github.com/nokiatech/heif/tree/gh-pages/content/images. I am
> not sure about HEVC licensing and if we are allowed to copy some of
> those files in the ffmpeg fate server. Would generating a random image
> with ffmpeg and encoding it as HEIC be good enough?
>

I would prefer a real world example and FATE has a bunch of conformance
samples already.
Adding the ones from https://github.com/nokiatech/heif_conformance
shouldn't be a problem.
Ideally the sample test should be added to this same patch.
-- 
Vittorio
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