diff options
Diffstat (limited to 'libavformat/asfdec.c')
| -rw-r--r-- | libavformat/asfdec.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c index 63c18303c6..7d0409aa83 100644 --- a/libavformat/asfdec.c +++ b/libavformat/asfdec.c @@ -845,11 +845,21 @@ static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){ if (asf->packet_flags & 0x01) { DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal if(asf->packet_frag_size > asf->packet_size_left - rsize){ - av_log(s, AV_LOG_ERROR, "packet_frag_size is invalid\n"); - return -1; + if (asf->packet_frag_size > asf->packet_size_left - rsize + asf->packet_padsize) { + av_log(s, AV_LOG_ERROR, "packet_frag_size is invalid (%d-%d)\n", asf->packet_size_left, rsize); + return -1; + } else { + int diff = asf->packet_frag_size - (asf->packet_size_left - rsize); + asf->packet_size_left += diff; + asf->packet_padsize -= diff; + } } //printf("Fragsize %d\n", asf->packet_frag_size); } else { + if (rsize > asf->packet_size_left) { + av_log(s, AV_LOG_ERROR, "packet_replic_size is invalid\n"); + return -1; + } asf->packet_frag_size = asf->packet_size_left - rsize; //printf("Using rest %d %d %d\n", asf->packet_frag_size, asf->packet_size_left, rsize); } |