libavcodec/h264_direct.c:366: error: Uninitialized Value
  The value read from ref[_] was never initialized.

libavcodec/h264_direct.c:366:32: 
364.                             if(ref[0] == 0)
365.                                 AV_ZERO32(h->mv_cache[0][scan8[i8*4+i4]]);
366.                             if(ref[1] == 0)
                                    ^
367.                                 AV_ZERO32(h->mv_cache[1][scan8[i8*4+i4]]);
368.                             m++;
