@Izzy Hey. I found a way to crop videos. I was wrong about ffmpeg the whole time. It is way easier than I first thought it was. The thing you need to do is to import the module (ffmpeg4android lib) to your project and then you have access to it. Tell me if you need more information.

@JonasB Ah. You're talking of the programmers side. I'm on "the other end". If you happen to release your app which then crops videos, make sure to ping me with a link, so I can include it with my app listings :)