I'm not entirely sure what state its in (and the code is brutally hacked together -- I spent far more time reading up on how to mangle the ffmpeg CLI to get what I wanted than I did bothering to write anything resembling quality shell code)

I don't use it any longer, but I'll see if it's still sitting on my media server (but probably not until the weekend) - if you're on keybase, you can find me @mdip; I'll toss it in my public keybase filesystem folder (keybase.pub/mdip, I think) if I can locate it! :)