libavcodec/h264.c:1087: error: Uninitialized Value
  The value read from ref[_] was never initialized.

libavcodec/h264.c:1087:17: 
1085. 
1086.                 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
1087.                 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
                      ^
1088.                 if(!IS_INTRA(mb_type_col[y8])
1089.                    && (   (l1ref0[xy8] == 0 && FFABS(l1mv0[xy4][0]) <= 1 && FFABS(l1mv0[xy4][1]) <= 1)
