snowdec: check log in get_symbol2()

Fixes Ticket1635 Found-by: Piotr Bandurski <ami_stuff@o2.pl> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago · 4a596d19ff
parent 0114c571d4
commit 4a596d19ff
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/snow.h
+++ b/libavcodec/snow.h
@ -582,7 +582,7 @@ static inline int get_symbol2(RangeCoder *c, uint8_t *state, int log2){

    av_assert2(log2>=-4);

-    while(get_rac(c, state+4+log2)){
+    while(log2<28 && get_rac(c, state+4+log2)){
        v+= r;
        log2++;
        if(log2>0) r+=r;