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Fix division by 0 due to audio frame size

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-02-10 18:15:33 +01:00
parent cb85779d45
commit ea1d8465e6
1 changed files with 4 additions and 0 deletions
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4
libavformat/mvi.c
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@ -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;