  I/O:
   * stdin/stdout
   * ctrl data from/to plain text files
   * MIDI
   * raw data support
   * multiple files
   * flexible connections through ids
   * support for output-only plugins

  Features:
   * dry run
   * disable nan/inf/clipping checks via cmd line options
   * arbitrary extra silence at the end of stream
   * extra silence to compensate --with-latency option
   * inplace processing
   * verbosity control
   * presets, enumerations and other LV2ish stuff
   * progress bar (e.g., wget-style)
   * intermediate output to file for normalization (long files)
   * ports with sample rate property???

  Other:
   * better man page
