snowdec: check log in get_symbol2()
Fixes Ticket1635 Found-by: Piotr Bandurski <ami_stuff@o2.pl> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -582,7 +582,7 @@ static inline int get_symbol2(RangeCoder *c, uint8_t *state, int log2){
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av_assert2(log2>=-4);
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while(get_rac(c, state+4+log2)){
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while(log2<28 && get_rac(c, state+4+log2)){
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v+= r;
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log2++;
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if(log2>0) r+=r;
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