[FFmpeg-devel] [RFC PATCH] libavcodec/libopenjpeg: pix fmt selection change

[Gautam Ramakrishnan]

On Tue, Jun 9, 2020 at 11:55 PM Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
>
> Am Di., 9. Juni 2020 um 19:12 Uhr schrieb Gautam Ramakrishnan
> <gautamramk at gmail.com>:
> >
> > On Tue, Jun 9, 2020 at 10:24 PM Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> > >
> > > Am Di., 9. Juni 2020 um 14:07 Uhr schrieb <gautamramk at gmail.com>:
> > > >
> > > > From: Gautam Ramakrishnan <gautamramk at gmail.com>
> > > >
> > > > This patch makes selection of pix_fmt similar to
> > > > that in the native decoder. This makes samples such
> > > > as p0_05.j2k and p1_03.j2k decodable by libopenjpeg.
> > >
> > > Since both files are not YUVA420P, I am not sure if this
> > > patch is a good idea, in any case, the commit message
> > > mentioning the two files as reasons for this patch is wrong.
> > >
> > I am not sure what file format this is then.
>
> I failed to find out so far, possibly Bayer, CMYK seems less
> likely to me.
The reference file has 4 components, Whereas all the Bayer formats
have 3 components. Are we missing any Bayer pixel format in ffmpeg?
Also, any other ideas on what has to be done for the 2 reference files
mentioned? If this seems like a good idea, I could go through opj_decompress
and try to replicate what it does.
>
> Carl Eugen
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".



-- 
-------------
Gautam |