libavcodec/h264.c:1106: error: Uninitialized Value
  The value read from ref[_] was never initialized.

libavcodec/h264.c:1106:13: 
1104. 
1105.             fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
1106.             fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
                  ^
1107.             if(!IS_INTRA(mb_type_col[0])
1108.                && (   (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)
