Bug-Id: 1101
Cc: [email protected]
---
libavcodec/vc1_mc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/vc1_mc.c b/libavcodec/vc1_mc.c
index f4632d6..abdc9e3 100644
--- a/libavcodec/vc1_mc.c
+++ b/libavcodec/vc1_mc.c
@@ -689,6 +689,11 @@ void ff_vc1_mc_4mv_chroma4(VC1Context *v, int
dir, int dir2, int avg)
if (s->avctx->flags & AV_CODEC_FLAG_GRAY)
return;
+ if (s->last_picture.f && !s->last_picture.f->data[1]) {
+ av_log(s->avctx, AV_LOG_ERROR, "Bad data in last picture frame.\n");
+ return;
+ }
+
for (i = 0; i < 4; i++) {
int d = i < 2 ? dir: dir2;
tx = s->mv[d][i][0];
--
2.7.4
_______________________________________________
libav-devel mailing list
[email protected]
https://lists.libav.org/mailman/listinfo/libav-devel
