This kind of thing should probably be generalized so that any new parameter can be seamlessly woven into your `ls-like` reports.

https://github.com/c-blake/lc/blob/master/extensions/fe1 does `du` (like your example) as a f)ormat e)xtension, but you could use `ffprobe` to do the run-time in hours:minutes:seconds for media files (or maybe 0sec for non-media) or numerous other things.