void ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size){ c->bytestream_start= c->bytestream= buf; c->bytestream_end= buf + buf_size; #if CABAC_BITS == 16 c->low = (*c->bytestream++)<<18; c->low+= (*c->bytestream++)<<10; #else c->low = (*c->bytestream++)<<10; #endif c->low+= ((*c->bytestream++)<<2) + 2; c->range= 0x1FE; }