anchor.diff:  , ldacbt
   , libass
   , libkate
  -, libmms
   , lrdf
   , ladspaH
   , libnice
  
positive.code:     ldacbt
      libass
      libkate
      libmms
      webrtc-audio-processing # webrtc
      libbs2b
      libmodplug
  
negative.code: , libdvdnav
  , libdvdread
  , libgudev
  , libqrencode
  , libsndfile
  , libusb1
  