diff options
Diffstat (limited to 'libavcodec/mpeg4videodec.c')
| -rw-r--r-- | libavcodec/mpeg4videodec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c index 4c77081237..853c6d9132 100644 --- a/libavcodec/mpeg4videodec.c +++ b/libavcodec/mpeg4videodec.c @@ -1968,6 +1968,10 @@ static int mpeg4_decode_dpcm_macroblock(MpegEncContext *s, int16_t macroblock[25 if (rice_prefix_code == 11) dpcm_residual = get_bits(&s->gb, s->avctx->bits_per_raw_sample); else { + if (rice_prefix_code == 12) { + av_log(s->avctx, AV_LOG_ERROR, "Forbidden rice_prefix_code\n"); + return AVERROR_INVALIDDATA; + } rice_suffix_code = get_bitsz(&s->gb, rice_parameter); dpcm_residual = (rice_prefix_code << rice_parameter) + rice_suffix_code; } |