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avformat/omadec: simplify checks in nprobe() 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-24 00:29:02 +02:00
parent 23ad4d6f58
commit fb45de779c
1 changed files with 1 additions and 5 deletions
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6
libavformat/omadec.c
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@ -171,11 +171,7 @@ static int nprobe(AVFormatContext *s, uint8_t *enc_header, unsigned size,
taglen = AV_RB32(&enc_header[pos + 32]);
datalen = AV_RB32(&enc_header[pos + 36]) >> 4;
pos += 44;
if (size - pos < taglen)
return -1;
pos += taglen;
pos += 44L + taglen;
if (pos + (((uint64_t)datalen) << 4) > size)
return -1;