[FFmpeg-devel] [PATCH] lavfi: add kerndeint filter

[Stefano Sabatini]

On date Monday 2012-10-22 14:58:25 +0200, Jérémy TRAN encoded:
> 2012/10/21 Stefano Sabatini <stefasab at gmail.com>:
> > It turned out that the RGB mismatch is due to the fact that
> > mp=kerndeint doesn't support ARGB colorspace.
> >
> > You can test it with:
> > $ make libavfilter/filtfmts-test
> > $ libavfilter/filtfmts-test mp kerndeint
> 
> Hum… so, how should I deal with 32-bits RGB pixels ?

If the output looks good, since we have no reference, we can assume
that it *is* good.

The alternative would be to fix mp=kerndeint in order to make it
properly support RGB, but I don't think it is worth so.

> > Another issue which I discovered:
> > $ ffmpeg -f lavfi -i color=c=black,tinterlace=4,kerndeint,format=argb,showinfo -loglevel verbose -vframes 1 out.png
> >
> > the first frame created by kerndeint is gray (only with RGB colorspace).
> 
> I’ll take a look at that problem.
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