Fixes: 709/clusterfuzz-testcase-4789836449841152
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/mpeg12dec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index d44ddb20fa..27db14c35e 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -497,7 +497,7 @@ static inline int mpeg2_decode_block_intra(MpegEncContext
*s,
dc = s->last_dc[component];
dc += diff;
s->last_dc[component] = dc;
- block[0] = dc << (3 - s->intra_dc_precision);
+ block[0] = dc * (1 << (3 - s->intra_dc_precision));
ff_tlog(s->avctx, "dc=%d\n", block[0]);
mismatch = block[0] ^ 1;
i = 0;
--
2.11.0
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
