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avfilter/vf_neighbor: check if width is 1 

Fixes #8242

(cherry picked from commit e787f8fd7e)
This commit is contained in:
Paul B Mahol 2019-10-11 11:18:10 +02:00 committed by Michael Niedermayer
parent d1cdfe78cf
commit 98981312e1
1 changed files with 5 additions and 3 deletions
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8
libavfilter/vf_neighbor.c
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@ -296,9 +296,11 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
src + (width - 2) * bpc, src + (width - 2) * bpc,
src + (width - 2) * bpc + ph * stride, src + (width - 1) * bpc + ph * stride, src + (width - 2) * bpc + ph * stride};
s->filter(dst, src, 1, threshold, coordinateslb, s->coordinates, s->max);
s->filter(dst + 1 * bpc, src + 1 * bpc, width - 2, threshold, coordinates, s->coordinates, s->max);
s->filter(dst + (width - 1) * bpc, src + (width - 1) * bpc, 1, threshold, coordinatesrb, s->coordinates, s->max);
s->filter(dst, src, 1, threshold, coordinateslb, s->coordinates, s->max);
if (width > 1) {
s->filter(dst + 1 * bpc, src + 1 * bpc, width - 2, threshold, coordinates, s->coordinates, s->max);
s->filter(dst + (width - 1) * bpc, src + (width - 1) * bpc, 1, threshold, coordinatesrb, s->coordinates, s->max);
}
src += stride;
dst += dstride;