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| author | Janne Grunau <janne-libav@jannau.net> | 2012-01-05 21:57:22 +0100 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2012-01-05 23:19:14 +0100 |
| commit | f5be84cfbc9c132a867ae8a8c0e0de26ed1a4e88 (patch) | |
| tree | 5fca884e83c4754e7e9b45f43340bcd1a0aa101d /libavformat | |
| parent | 696ace50ea91a65dff887aaf5296f42a2fbc8f6c (diff) | |
| download | ffmpeg-f5be84cfbc9c132a867ae8a8c0e0de26ed1a4e88.tar.gz | |
ipmovie: do not read audio packets before the codec is known
Prevents a division by zero.
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/ipmovie.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/ipmovie.c b/libavformat/ipmovie.c index 4bd3580bc2..bd5ec30016 100644 --- a/libavformat/ipmovie.c +++ b/libavformat/ipmovie.c @@ -116,6 +116,11 @@ static int load_ipmovie_packet(IPMVEContext *s, AVIOContext *pb, int chunk_type; if (s->audio_chunk_offset) { + if (s->audio_type == CODEC_ID_NONE) { + av_log(NULL, AV_LOG_ERROR, "Can not read audio packet before" + "audio codec is known\n"); + return CHUNK_BAD; + } /* adjust for PCM audio by skipping chunk header */ if (s->audio_type != CODEC_ID_INTERPLAY_DPCM) { |