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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-02-10 18:15:33 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-02-10 18:15:33 +0100 |
| commit | ea1d8465e6eca582c09e2526f677033b62576fda (patch) | |
| tree | 7223f6ae16a228db3cd8251068170f9b607fb0b7 /libavformat/mvi.c | |
| parent | cb85779d459c6486acbbf060b3f169779424583e (diff) | |
| download | ffmpeg-ea1d8465e6eca582c09e2526f677033b62576fda.tar.gz | |
Fix division by 0 due to audio frame size
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/mvi.c')
| -rw-r--r-- | libavformat/mvi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/mvi.c b/libavformat/mvi.c index 6b74597f07..953c1824fa 100644 --- a/libavformat/mvi.c +++ b/libavformat/mvi.c @@ -96,6 +96,10 @@ static int read_header(AVFormatContext *s) mvi->get_int = (vst->codec->width * vst->codec->height < (1 << 16)) ? avio_rl16 : avio_rl24; mvi->audio_frame_size = ((uint64_t)mvi->audio_data_size << MVI_FRAC_BITS) / frames_count; + if (!mvi->audio_frame_size) { + av_log(s, AV_LOG_ERROR, "audio_frame_size is 0\n"); + return AVERROR_INVALIDDATA; + } mvi->audio_size_counter = (ast->codec->sample_rate * 830 / mvi->audio_frame_size - 1) * mvi->audio_frame_size; mvi->audio_size_left = mvi->audio_data_size; |