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avcodec/flacdec: make while get_bits loop more robust by checking bits left

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-10-30 14:23:30 +01:00
parent 0c6bb53bb2
commit 9f5b75f241
1 changed files with 4 additions and 1 deletions
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5
libavcodec/flacdec.c
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@ -366,8 +366,11 @@ static inline int decode_subframe(FLACContext *s, int channel)
bps, left);
return AVERROR_INVALIDDATA;
}
while (!get_bits1(&s->gb))
while (!get_bits1(&s->gb)) {
wasted++;
if (get_bits_left(&s->gb) <= 0)
return AVERROR_INVALIDDATA;
}
bps -= wasted;
}
if (bps > 32) {