libavcodec/rv40.c:609: error: Uninitialized Value
  The value read from mb_strong[_] was never initialized.

libavcodec/rv40.c:609:68: 
607.                                            alpha, beta, betaC, 1, 0);
608.                     }
609.                     if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
                                                                        ^
610.                         int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0;
611.                         rv40_h_loop_filter(C, s->uvlinesize, i*8,
