Elgato Cam Link 4K on GNU/Linux

camlink-linux

As people have said it works in OBS easy enough, to get it working in Chrome as a webcam I had to use a loopback to fix the color space RockApe alluded to:

sudo modprobe v4l2loopback devices=1 exclusive_caps=1

v4l2-ctl --list-devices # Get the video devices for the camlink and dummy.

ELGATO=/dev/video2

V4LOOP=/dev/video4

ffmpeg -f v4l2 -input_format yuyv422 -framerate 60 -video_size 1920x1080 -i $ELGATO -pix_fmt yuyv422 -codec copy -f v4l2 $V4LOOP


Now select the dummy in chrome for your webcam.


The v4l2 loopback ubuntu package is v4l2loopback-dkms, if you get ffmpeg error

# ioctl(VIDIOC_G_FMT): Invalid argument

You probably need to build from source / newest version


The ffmpeg with -codec copy uses only 8% cpu on a Lenovo X1, so no concerns there.

(Source: https://www.reddit.com/r/linuxhardware/comments/dzqmvq/did_anyone_tried_an_elgato_cam_link_4k_on_gnulinux/fjdsx96?utm_source=share&utm_medium=web2x&context=3)