Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-sta...@libav.org
---
libavcodec/vc1dec.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index d0566a3..4fcc818 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -5143,6 +5143,9 @@ static void vc1_decode_skip_blocks(VC1Context *v)
{
MpegEncContext *s = &v->s;
+ if (!v->s.last_picture.f.data[0])
+ return;
+
ff_er_add_slice(&s->er, 0, s->start_mb_y, s->mb_width - 1, s->end_mb_y -
1, ER_MB_END);
s->first_slice_line = 1;
for (s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
--
1.7.9.5
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