libavcodec/mpegvideo_enc.c:1961: error: Uninitialized Value
  The value read from skip_dct[_] was never initialized.

libavcodec/mpegvideo_enc.c:1961:14: 
1959.         if (!skip_dct[2])
1960.             get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1961.         if (!skip_dct[3])
                   ^
1962.             get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1963.         if (!skip_dct[4])
