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fangfufu / Linux-Fake-Background-Webcam

Faking your webcam background under GNU/Linux, now supports background blurring, animated background, colour map effect, hologram effect and on-demand processing.
GNU General Public License v3.0
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Error when selecting akvcam virtual camera #208

Open philippulus opened 2 months ago

philippulus commented 2 months ago

I have successfully installed akvcam and Linux-Fake-Background-Webcam on my Ubuntu 24.04 system with pipewire virtual environment.

This is how the config ini file look like:

[General] default_frame=/etc/akvcam/config.jpg

[Cameras] cameras/size = 2

cameras/1/type = output cameras/1/mode = mmap, userptr, rw cameras/1/description = Akvcam (Output device) cameras/1/formats = 2

cameras/2/type = capture cameras/2/mode = mmap, rw cameras/2/description = Akvcam (Capture device) cameras/2/formats = 1

[Formats] formats/size = 2

formats/1/format = YUY2 formats/1/width = 1280 formats/1/height = 720 formats/1/fps = 30

formats/2/format = RGB24 formats/2/width = 1280 formats/2/height = 720 formats/2/fps = 30

[Connections] connections/size = 1 connections/1/connection = 1:2

These are the video devices:

v4l2-ctl --list-devices Akvcam (Output device) (platform:akvcam-2): /dev/video2

Akvcam (Capture device) (platform:akvcam-3): /dev/video3

HD Pro Webcam C920 (usb-0000:c4:00.3-2.1): /dev/video0 /dev/video1 /dev/media0

This is how I am starting the camera:

Check Loaded Modules: Verify that the Akvcam module is loaded by running:

lsmod | grep akvcam

If it is not listed, load it manually:

sudo modprobe akvcam

Activate the virtual environment:

source /opt/Linux-Fake-Background-Webcam/virtualenv/bin/activate

Configure and Run the Application: Use the lfbw command to start the fake background application. You need to specify the input and output video devices:

lfbw -v /dev/video2 --background-image=/etc/akvcam/background.jpg --no-foreground

There are two problems here.

  1. When selecting akvcam as a virtual camera in Cheese, an error message i displayed, that cannot be reverse after selecting back the physical camera. I need to unload akvcam (sudo rmmod akvcam), close and restart cheese for the camera to become activated again: Screenshot from 2024-09-12 09-59-44

  2. Background loading seems to be OK. Screenshot from 2024-09-12 10-40-40 Then this changes as shown as soon Cheese is started with the video signal from the physical camera. At this stage, I select akvcam in Cheese and loops back to 1. above.

Any idea where the issue is?

fangfufu commented 2 months ago

Have you tried v4l2loopback-dkms? For akvcam related issues, please ask around https://github.com/webcamoid/akvcam.