libavcodec/mpegvideo_enc.c:2944: error: Uninitialized Value
  The value read from best_s.mv_type was never initialized.

libavcodec/mpegvideo_enc.c:2944:25: 
2942. 
2943.                         s->mv_dir= best_s.mv_dir;
2944.                         s->mv_type = best_s.mv_type;
                              ^
2945.                         s->mb_intra= 0;
2946. /*                        s->mv[0][0][0] = best_s.mv[0][0][0];
