libavcodec/rv40.c:443: error: Uninitialized Value
  The value read from clip[_] was never initialized.

libavcodec/rv40.c:443:37: 
441.                         clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
442.                     else
443.                         clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
                                         ^
444.                     r->rdsp.rv40_v_loop_filter(Y, s->linesize, dither,
445.                                        clip_cur,
