c->low+= *c->bytestream++;
if(c->bytestream < c->bytestream_end) c->low+= *c->bytestream; c->bytestream++;
static inline int get_cabac_bypass(CABACContext *c){    c->low += c->low;    if(--c->bits_left == 0){        c->low+= *c->bytestream++;        c->bits_left= 8;    }        if(c->low < c->range){        return 0;    }else{        c->low -= c->range;        return 1;    }}