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avfilter/vf_pullup: fix gray8

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Fixes segfault
Fixes Ticket3469

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-03-31 03:22:20 +02:00
parent 75621cdf5d
commit e818ee090a
1 changed files with 2 additions and 0 deletions
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libavfilter/vf_pullup.c
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@ -256,6 +256,8 @@ static int alloc_buffer(PullupContext *s, PullupBuffer *b)
for (i = 0; i < s->nb_planes; i++) { for (i = 0; i < s->nb_planes; i++) {
b->planes[i] = av_malloc(s->planeheight[i] * s->planewidth[i]); b->planes[i] = av_malloc(s->planeheight[i] * s->planewidth[i]);
} }
if (s->nb_planes == 1)
b->planes[1] = av_malloc(4*256);
return 0; return 0;
} }