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Code Issues Releases Activity

fix some crashes on negative nalsize.

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Originally committed as revision 5022 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2006-02-14 05:40:53 +00:00
parent 214c5f26c9
commit 8b03135958
1 changed files with 9 additions and 0 deletions
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9
libavcodec/h264.c
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@ -7507,6 +7507,15 @@ static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
nalsize = 0;
for(i = 0; i < h->nal_length_size; i++)
nalsize = (nalsize << 8) | buf[buf_index++];
if(nalsize <= 1){
if(nalsize == 1){
buf_index++;
continue;
}else{
av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
break;
}
}
} else {
// start code prefix search
for(; buf_index + 3 < buf_size; buf_index++){