18 #define prototype_mberr(sym) \  argument
19     int (sym)(MACROBLOCK *mb, int dc)
21 #define prototype_berr(sym) \  argument
22     int (sym)(short *coeff, short *dqcoeff)
24 #define prototype_mbuverr(sym) \  argument
25     int (sym)(MACROBLOCK *mb)
27 #define prototype_subb(sym) \  argument
28     void (sym)(BLOCK *be,BLOCKD *bd, int pitch)
30 #define prototype_submby(sym) \  argument
31     void (sym)(short *diff, unsigned char *src, unsigned char *pred, int stride)
33 #define prototype_submbuv(sym) \  argument
34     void (sym)(short *diff, unsigned char *usrc, unsigned char *vsrc,\