Cfrgtkky

I can't use my digital camera ( Canon ixus 160) as webcam
is there an application for that ?
or just in the settings?

Here's another solution.

List of gphoto2 supported cameras: http://gphoto.org/proj/libgphoto2/support.php

You need install gphoto, v4l2loopback-utils and ffmpeg.

Then

sudo modprobe v4l2loopback

and

gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f v4l2 /dev/video1

Now you have webcamera from your digital camera.

This can be done but requires a number of steps. First, you must install gphoto and v4l2loopback-utils.

sudo apt-get install gphoto2 v4l2loopback-utils

Plug in your camera via USB. Then run gphoto2 --abilities to see if your camera is capable of doing this. Here's the output when connecting a Canon EOS 1200D

Then run sudo modprobe v4l2loopback to activate the kernel module needed to create a video device from your camera.

I've seen older tutorials on this task that use gst-launch-0.10 to achieve the next step of this task (e.g. this one). I am using Ubuntu 17.04 which uses gst-launch-1.0. Below is the updated command to create a video device from your digital camera:

gphoto2 --stdout --capture-movie | gst-launch-1.0 fdsrc ! decodebin3 name=dec ! queue ! videoconvert ! v4l2sink device=/dev/video1

This will create a video device in /dev/video1, which you can now use in programs like VLC.

If you see any errors about the device being in use you need to kill the gvfs-gphoto2-volume-monitor process by running killall gvfs-gphoto2-volume-monitor.

I was able to get video & image recording with a Canon DSLR 600D

sudo apt get install guvcview ffmpeg gphoto2 v4l2loopback-dkms v4l2loopback-utils ffmpeg

Plug in camera, any mode seemed to work, test with the basics:

Prep

sudo modprobe v4l2loopback

killall gvfs-gphoto2-volume-monitor

Test

lsusb

gphoto2 --auto-detect

LANG=C gphoto2 --summary

LANG=C gphoto2 --list-all-config

Try

gphoto2 --capture-image

gphoto2 --stdout --capture-movie | ffmpeg -i - -vcodec rawvideo -pix_fmt yuv420p -threads 0 -f v4l2 /dev/video1

Visualize (in another terminal)

guvcview

or

guvcview-brlin.guvcview

You can try different /dev/video1 commands

There's also EOS Movie Recorder

Unzip this: https://sourceforge.net/projects/eos-movrec/files/eos-movrec/0.3.3_beta/eos-movrec-0.3.3_beta.zip/download

cd eos-movrec-0.3.2_beta

sudo apt install libgphoto2-dev                                     

mkdir build

cd build

cmake -DCMAKE_BUILD_TYPE=Release ..

make

I wanted to do that once to set up a basic webcam to see what my animals did all day while away at work, lol. You might have to set up streaming with vlc.

https://help.ubuntu.com/community/Webcam