Some more automation

[sebastian-philipp]

Would be great to somehow better specify the devices instead of specifying the exact device name entries. Feeding the output of v4l2-ctl --list-devices into the weffe arguments is not extraordinary user friendly.

[intermezzio]

Thanks for the feedback! I haven't edited this repository in a while but if you have an idea of what you think this could look like I'm open to implementing it! (And yes... I mostly used that for debugging but it sure could be more user-friendly)