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avcodec/apm: fix sample_rate check

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Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
This commit is contained in:
Zane van Iperen 2020-07-20 13:35:26 +10:00
parent 081e3001ed
commit 8598fc4010
1 changed files with 2 additions and 2 deletions
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4
libavformat/apm.c
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@ -126,8 +126,8 @@ static int apm_read_header(AVFormatContext *s)
if (avio_rl32(s->pb) != APM_FILE_EXTRADATA_SIZE)
return AVERROR_INVALIDDATA;
/* I've never seen files greater than this. */
if (par->sample_rate > 44100)
/* 8 = bits per sample * max channels */
if (par->sample_rate > (INT_MAX / 8))
return AVERROR_INVALIDDATA;
if (par->bits_per_coded_sample != 4)