Overlay is backwards, game is overlaying the webcam rather than the other way

[f4hy]

I am having a weird issue where when running this script with a webcam, the output is set to the resolution of the WEBCAM not the window selected, and the game is overlaying on top of the webcam rather than the other way around like should be the case.

I am using ffmpeg if that helps. Not sure what is wrong, I have tried messing with the flags in the -fv part of the script but can't get it right. Any idea?

[wargio]

I've just tried and i had no issue.
I had 1280x720p as output with 320x240p of overlayed webcam.

This means that must be your FFMPEG version or a lib that isn't working properly.

Please write here your FFMPEG version and Distro.
please write also any other option that are you using with my script (i mean when you launch it, like: -fullscreen/-window)