I have Leap 15.4 newly installed.  HandBrakeGUI from packman repository doesn't seem to recognize any of the details of an MPEG file from Zoom.  I can't clip the video using the seconds limits.  VLC is installed from Packman and can play the video.  That required install VLC and vlc-codecs from Packman.  Am I missing codecs or something else from Packman?

TIA,
  Jeffrey