diff options
| -rw-r--r-- | libavcodec/ituh263dec.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c index 2e0f395c9b..73aaa1daf8 100644 --- a/libavcodec/ituh263dec.c +++ b/libavcodec/ituh263dec.c @@ -717,6 +717,11 @@ int ff_h263_decode_mb(MpegEncContext *s, pb_mv_count = h263_get_modb(&s->gb, s->pb_frame, &cbpb); cbpy = get_vlc2(&s->gb, ff_h263_cbpy_vlc.table, CBPY_VLC_BITS, 1); + if (cbpy < 0) { + av_log(s->avctx, AV_LOG_ERROR, "cbpy damaged at %d %d\n", s->mb_x, s->mb_y); + return SLICE_ERROR; + } + if(s->alt_inter_vlc==0 || (cbpc & 3)!=3) cbpy ^= 0xF; |