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-rw-r--r--libavfilter/vf_pad.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/vf_pad.c b/libavfilter/vf_pad.c
index 2740c634db..2962e204f0 100644
--- a/libavfilter/vf_pad.c
+++ b/libavfilter/vf_pad.c
@@ -251,7 +251,7 @@ static int buffer_needs_copy(PadContext *s, AVFrame *frame, AVBufferRef *buf)
(s->y >> vsub) * frame->linesize[planes[i]];
ptrdiff_t req_end = ((s->w - s->x - frame->width) >> hsub) *
s->draw.pixelstep[planes[i]] +
- (s->y >> vsub) * frame->linesize[planes[i]];
+ ((s->h - s->y - frame->height) >> vsub) * frame->linesize[planes[i]];
if (frame->linesize[planes[i]] < (s->w >> hsub) * s->draw.pixelstep[planes[i]])
return 1;