libavcodec/rv40.c:539: error: Uninitialized Value
  The value read from mb_strong[_] was never initialized.

libavcodec/rv40.c:539:65: 
537.             if(!row)
538.                 c_h_deblock[i] &= ~MASK_C_TOP_ROW;
539.             if(row == s->mb_height - 1 || mb_strong[POS_CUR] || mb_strong[POS_BOTTOM])
                                                                     ^
540.                 c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);
541.         }
