libavcodec/rv40.c:563: error: Uninitialized Value
  The value read from clip[_] was never initialized.

libavcodec/rv40.c:563:37: 
561.                         clip_left = (cbp[POS_LEFT] | mvmasks[POS_LEFT]) & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
562.                     else
563.                         clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
                                         ^
564.                     rv40_v_loop_filter(Y, s->linesize, dither,
565.                                        clip_cur,
