Wayland wr-recorder additional recording file about mon2cam

[ShayBox]

I don't see a way to disable it, so maybe a feature request upstream, but there's the -f flag, we can just point it to /dev/null to void it

[botiapa]

Yeah, but if I'm not mistaken, we already use the -f flag to point to to the virtual cam device:

const commandLines = ["wf-recorder", "-x yuv420p", "-c rawvideo", "-m v4l2",`-f /dev/video${options.device}\`];