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snapcrafters / obs-studio

This is a community-supported modified build of OBS Studio.
https://snapcraft.io/obs-studio
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OBS doesn't see V4L loopback devices as inputs #132

Closed ali1234 closed 2 years ago

ali1234 commented 3 years ago

How to reproduce:

  1. Install v4l2loopback-dkms
  2. sudo modprobe v4l2loopback max_buffers=2 exclusive_caps=1 video_nr=10 card_label="VirtualCam"
  3. Start a program such as backscrub which feeds the loopback: backscrub -c /dev/video0 -v /dev/video10 -m /usr/share/backscrub/models/selfiesegmentation_mlkit-256x256-2021_01_19-v1215.f16.tflite -d -d
  4. See the preview window from backscrub indicating that everything is working
  5. Open obs-studio
  6. Add a V4L2 capture source
  7. "VirtualCam" is not listed in the available sources
  8. Run mpv av://v4l2:/dev/video10 and see the virtual camera output. Close it.
  9. Run any other program that captures video such as Skype, Firefox etc and see that VirtualCamera is available.
ali1234 commented 3 years ago

Source configuration not showing the VirtualCam input:

snap

What it looks like for someone who does all the above but using OBS 26.1.2 from Debian 11:

nonsnap

See https://github.com/floe/backscrub/issues/105 for more details.