diff options
| author | David Conrad | 2010-01-11 00:31:55 +0000 |
|---|---|---|
| committer | David Conrad | 2010-01-11 00:31:55 +0000 |
| commit | 18ca491bf13b76fc022373110ccac385fee0557c (patch) | |
| tree | ac9f0614f6c972d4d3ded6d7ed04d66a91b1e9d8 /libavformat/matroskadec.c | |
| parent | 24ca518bd1553e2e73d31b9f93df4fb7219606ff (diff) | |
mkvdec: Avoid divide-by-zero crash on invalid real audio tracks
Originally committed as revision 21129 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/matroskadec.c')
| -rw-r--r-- | libavformat/matroskadec.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index 688169a8b6..59dc166734 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -1634,9 +1634,10 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data, if (res == 0) { for (n = 0; n < laces; n++) { - if (st->codec->codec_id == CODEC_ID_RA_288 || - st->codec->codec_id == CODEC_ID_COOK || - st->codec->codec_id == CODEC_ID_ATRAC3) { + if ((st->codec->codec_id == CODEC_ID_RA_288 || + st->codec->codec_id == CODEC_ID_COOK || + st->codec->codec_id == CODEC_ID_ATRAC3) && + st->codec->block_align && track->audio.sub_packet_size) { int a = st->codec->block_align; int sps = track->audio.sub_packet_size; int cfs = track->audio.coded_framesize; |