2 DSLRs and 1 Webcam support

[coryjsanders]

I lost my recipe on how to make /dev/video10 /dev/video11 /dev/video12 and have them show up in OBS.

Debian11, new OBS install with PIPEWIRE=ON, v4l2loopback-dkms installed

gphoto2 --auto-detect shows

Canon EOS 80D usb:004,003
Canon EOS 80D usb:002,002

I can get OBS make a scene with either one of them running this from the CLI:
sudo gphoto2 --stdout --capture-movie --port usb:004,003 | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f v4l2 /dev/video0

But I want to have /dev/video10 and 11 so I can open two terminals and start the capture of each camera and make scenes in OBS with them.

This is with a USB Webcam and 2 DSLRs plugged in.
bs@obs:~$ v4l2-ctl --list-devices
Dummy video device (0x0000) (platform:v4l2loopback-000):
/dev/video0

Full HD webcam: Full HD webcam (usb-0000:00:1a.0-1.3):
/dev/video1
/dev/video2
/dev/media0

 

[theHIR]

Hi Just saw you post but I will add here to be of help

You want to re modprobe as follows

sudo -S modprobe v4l2loopback excusive_caps=1 video_nr=10,11 card_label=\"Cam10\",\"Cam11\"

run your gphoto comand