Your initial use of ffmpeg and the video add (in my opinion) credence to what I just posted regarding selection of the resolution etc… in this case, you’re doing it through ffmpeg, but what would be needed for LightBurn would be the option to set these in the UI.
@JohnJohn : Is it possible to get some insight into the underlying camera connection library, code, or something so we can provide additional troubleshooting, investigation or help in debugging?
From research the forum threads, it sounds like (at least at one time) LightBurn was being written in something that is compiled cross platform – but I don’t know what it’s written in to know whether I am able to help… but certainly happy to at least do the legwork to keep pointing in the right direction.
Addendum: Found this topic, and there are others, but hoping to use this to help build the case that the UI would be helpful as it may be a factor in other OS platforms as well – and at the very least – would be useful to have better control over camera settings/options.
I may come back and update further with additional threads that all deal with “no camera image” but where the camera works in other apps on the same OS.