[FFmpeg-devel] [PATCH] libavfilter-soc: prevents division by zero in scale
Michael Niedermayer
michaelni
Tue Jun 9 23:33:41 CEST 2009
On Tue, Jun 09, 2009 at 11:01:42PM +0200, Stefano Sabatini wrote:
> Hi, as in subject.
>
> Regards.
> --
> FFmpeg = Faboulous and Fostering Multimedia Puristic Elegant Glue
> vf_scale.c | 1 +
> 1 file changed, 1 insertion(+)
> 1d3e6890fe6ee1224e2dfc322463d24e73bcb4ee scale-fix-gcd.patch
> Index: libavfilter-soc/ffmpeg/libavfilter/vf_scale.c
> ===================================================================
> --- libavfilter-soc.orig/ffmpeg/libavfilter/vf_scale.c 2009-06-09 22:57:53.000000000 +0200
> +++ libavfilter-soc/ffmpeg/libavfilter/vf_scale.c 2009-06-09 23:01:09.000000000 +0200
> @@ -137,6 +137,7 @@
> out->outpic->pixel_aspect.den = picref->pixel_aspect.den * out->w * link->h;
>
> gcd = av_gcd(out->outpic->pixel_aspect.num, out->outpic->pixel_aspect.den);
if(gcd>1){
> out->outpic->pixel_aspect.num /= gcd;
> out->outpic->pixel_aspect.den /= gcd;
}
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
Why not whip the teacher when the pupil misbehaves? -- Diogenes of Sinope
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