libavcodec/rv40.c:451: error: Uninitialized Value
  The value read from mb_strong[_] was never initialized.

libavcodec/rv40.c:451:44: 
449.             if(!row)
450.                 c_h_deblock[i] &= ~MASK_C_TOP_ROW;
451.             if(row == s->mb_height - 1 || (mb_strong[POS_CUR] | mb_strong[POS_BOTTOM]))
                                                ^
452.                 c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);
453.         }
