libavcodec/mpegvideo_enc.c:3198: error: Uninitialized Value
  The value read from level_tab[_] was never initialized.

libavcodec/mpegvideo_enc.c:3198:17: 
3196.                 last_score= score;
3197.                 last_i= i;
3198.                 last_level= level_tab[i];
                      ^
3199.                 last_run= run_tab[i];
3200.             }
