libavcodec/mpegvideo_enc.c:2461: error: Uninitialized Value
  The value read from best_s.qscale was never initialized.

libavcodec/mpegvideo_enc.c:2461:17: 
2459.                 }
2460. 
2461.                 s->current_picture.f.qscale_table[xy] = best_s.qscale;
                      ^
2462. 
2463.                 copy_context_after_encode(s, &best_s, -1);
