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get_xbits: assert validity of the number of bits

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similar is already done in the other get_bits() functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-06-30 00:31:51 +02:00
parent 68efb1d60a
commit ff130d7363
1 changed files with 1 additions and 0 deletions
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libavcodec/get_bits.h
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@ -214,6 +214,7 @@ static inline int get_xbits(GetBitContext *s, int n)
register int sign; register int sign;
register int32_t cache; register int32_t cache;
OPEN_READER(re, s); OPEN_READER(re, s);
av_assert2(n>0 && n<=25);
UPDATE_CACHE(re, s); UPDATE_CACHE(re, s);
cache = GET_CACHE(re, s); cache = GET_CACHE(re, s);
sign = ~cache >> 31; sign = ~cache >> 31;