libavcodec/h264.c:1104: error: Uninitialized Value
  The value read from ref[_] was never initialized.

libavcodec/h264.c:1104:20: 
1102.                    || (l1ref0[0]  < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1
1103.                        && (h->x264_build>33 || !h->x264_build)))){
1104.                 if(ref[0] > 0)
                         ^
1105.                     a= pack16to32(mv[0][0],mv[0][1]);
1106.                 if(ref[1] > 0)
