We’re trying to edit a video with FFmpeg. One of our videos has an alpha channel and we want to superimpose this above another video.
Video 01: Start frame 1 end frame 200 Video 02: Start frame 100 end frame 300
A common function within video editing software is working with multiple layers. So far we haven't been able to find such a function within FFmpeg.
Does anyone know how to do this? Any suggestion is welcome! (or if you know any other way to do this trough a unix command line we'd be glad to know)