static JComponent ffmpegVersionPanel() {
  JLabel lblVersion = jlabel();
  Runnable update = callAndReturn(r {
    setText(lblVersion, or2(ffmpegVersion(), "Error: FFMPEG not found!"))
  });
  bindAutoCloseableToComponent(() -> vmBus_onMessage ffmpegLocationChanged(update), lblVersion);
  ret centerAndEastWithMargin(
    withLabel("FFMPEG version:", lblVersion),
    jbutton("Browse for FFMPEG...", r {
      File f = showFileChooser();
      if (f == null) ret;
      if (!(fileExists(f) && swic(fileName(f), "ffmpeg")))
        ret with infoBox("Not a suitable ffmpeg executable");
      setFFMpegLocation(f);
    }));
}