diff options
| -rw-r--r-- | libavcodec/h264.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 1c02adc314..73d10c8b2d 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -4883,6 +4883,10 @@ static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, in if(total_coeff==0) return 0; + if(total_coeff<0) { + av_log(h->s.avctx, AV_LOG_ERROR, "corrupted macroblock %d %d (total_coeff<0)\n", s->mb_x, s->mb_y); + return -1; + } trailing_ones= coeff_token&3; tprintf("trailing:%d, total:%d\n", trailing_ones, total_coeff); |