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xa: abort if number of channels or sample rate is 0

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Fixes #2711.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-06-25 22:24:55 +00:00
parent da8c9b324c
commit ad194b0487
1 changed files with 3 additions and 0 deletions
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3
libavformat/xa.c
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@ -84,6 +84,9 @@ static int xa_read_header(AVFormatContext *s)
avio_skip(pb, 2); /* Skip block align */
avio_skip(pb, 2); /* Skip bits-per-sample */
if (!st->codec->channels || !st->codec->sample_rate)
return AVERROR_INVALIDDATA;
st->codec->bit_rate = av_clip(15LL * st->codec->channels * 8 *
st->codec->sample_rate / 28, 0, INT_MAX);