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avfilter/vf_pullup: fix gray8

Fixes segfault
Fixes Ticket3469

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e818ee090ac53d1b333a7d6a45274f75cf1a71a1)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Michael Niedermayer authored on 2014/03/31 10:22:20
Showing 1 changed files

libavfilter/vf_pullup.c index 73ffa68..5b448dd 100644

libavfilter/vf_pullup.c

History View file @ 5cb2a1c

@@ -256,6 +256,8 @@ static int alloc_buffer(PullupContext *s, PullupBuffer *b)
     for (i = 0; i < s->nb_planes; 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;
 }

...	...	@@ -256,6 +256,8 @@ static int alloc_buffer(PullupContext s, PullupBuffer b)
256	256	for (i = 0; i < s->nb_planes; i++) {
257	257	b->planes[i] = av_malloc(s->planeheight[i] * s->planewidth[i]);
258	258	}
	259	+ if (s->nb_planes == 1)
	260	+ b->planes[1] = av_malloc(4*256);
259	261
260	262	return 0;
261	263	}