> if(transform_bypass && theprofile && (hor || ver)){ > if(hor) > do_hori_predict_4x4_c() > else > do_vert_predict_4x4_c() > }else > idct4x4_add() > So are you suggesting that do_hori_predict/do_vert_predict will do the "idct", built-in, meaning they take an argument DCTELEM *dct? Ddark Shikari