libavcodec/h264.h:1231: error: Uninitialized Value
  The value read from topleft_type was never initialized.

libavcodec/h264.h:1231:21: 
1229.                         h->mvd_cache[list][idx][1] <<= 1;\
1230.                     }
1231.                     MAP_MVS
                          ^
1232. #undef MAP_F2F
1233.                 }
