#StackBounty: #linux #hdmi #video Video output filter

Bounty: 100

I would like to be imbed a filter in the Pi’s HDMI output such that pixels are slightly rearranged. Specifically, I’m after a retro pincushion effect ([ ] -> ( )). I need it to be active even in the console/boot sequence, thus X11 mods are out.

I realise this is not an easy task, and that I may end up having to modify the DRM or V4L2 driver in order to achieve this. That’s something I would be willing to do if it came to that.

Does anyone have an idea as to how I might be able to go about this? It’s for a Pi Zero and it doesn’t necessarily need to work with a GUI environment.

Get this bounty!!!

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