* ubitux/shorthand-cleanup:
  lavfi/subtitles: switch to an AVOptions-based system.
  lavfi/pp: switch to an AVOptions-based system.
  lavfi/geq: switch to an AVOptions-based system.
  lavfi/edgedetect: switch to an AVOptions-based system.
  lavfi/curves: switch to an AVOptions-based system.
  lavfi/colormatrix: switch to an AVOptions-based system.
  lavfi/perms: switch to an AVOptions-based system.
  lavfi/ebur128: switch to an AVOptions-based system.
  lavfi/showspectrum: switch to an AVOptions-based system.
  lavfi/silencedetect: switch to an AVOptions-based system.
  lavfi/thumbnail: switch to an AVOptions-based system.
Merged-by: Michael Niedermayer <michaelni@gmx.at>