c->low+= *c->bytestream++;
if(c->bytestream < c->bytestream_end) c->low+= *c->bytestream; c->bytestream++;
static inline void renorm_cabac_decoder(CABACContext *c){    while(c->range < 0x10000){        c->range+= c->range;        c->low+= c->low;        if(--c->bits_left == 0){            c->low+= *c->bytestream++;            c->bits_left= 8;        }    }}