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ape: Fix null ptr dereference with files missing a seekatable.

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Such files are currently not supported as the table is used at several points

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-05-29 19:50:15 +02:00
parent 5880d78873
commit e7cb161515
1 changed files with 3 additions and 0 deletions
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3
libavformat/ape.c
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@ -278,6 +278,9 @@ static int ape_read_header(AVFormatContext * s)
return AVERROR(ENOMEM);
for (i = 0; i < ape->seektablelength / sizeof(uint32_t); i++)
ape->seektable[i] = avio_rl32(pb);
}else{
av_log(s, AV_LOG_ERROR, "Missing seektable\n");
return -1;
}
ape->frames[0].pos = ape->firstframe;