libavformat/gxfenc.c:913: error: Uninitialized Value
  The value read from field_nb[_] was never initialized.

libavformat/gxfenc.c:913:12: 
911.     }
912. 
913.     return field_nb[1] > field_nb[0] ||
                ^
914.         (field_nb[1] == field_nb[0] && sc[1]->order > sc[0]->order);
915. }
