Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavcodec/vc1dec.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index 2ff1315..5b0fe46 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -1048,6 +1048,10 @@ static void vc1_mc_4mv_chroma4(VC1Context *v)
mquant = v->altpq; \
if ((edges&8) && s->mb_y == (s->mb_height - 1)) \
mquant = v->altpq; \
+ if (!mquant || mquant > 31) { \
+ av_log(v->s.avctx, AV_LOG_ERROR, "invalid mquant %d\n", mquant);
\
+ mquant = 1; \
+ } \
}
/**
--
1.7.4
_______________________________________________
libav-devel mailing list
[email protected]
https://lists.libav.org/mailman/listinfo/libav-devel
