21

Is there a terminal command that lists all the webcams connected to my computer, including the native one? Maybe using ffmpeg package?

  • <<<<< lsusb >>>> – Qasim Sep 22 '13 at 20:33
26

To list all video devices picked up by the kernel

ls -ltrh /dev/video*

To list all devices attached to USB use lsusb ; to list all devices attached to PCI use lspci

  • 1
    $ ls -ltrh /dev/video* ls: cannot access '/dev/video*': No such file or directory – Mona Jalal Jun 21 '18 at 21:11
  • @MonaJalal That means it couldn’t find any devices. – JMY1000 Jan 25 at 22:23
  • this does not work on my surface pro 3. I can use cheese and it detects my camera just fine but lspci and the command above both do not show information about the webcam hardware. This is especially important because I want to use Kamera which asks to select from a long list. – Joshua Robison Mar 12 at 0:13
17

v4l2-ctl --list-devices

sudo apt-get install v4l-utils
v4l2-ctl --list-devices

Sample output with a single camera:

Integrated Camera (usb-0000:00:1a.0-1.6):
        /dev/video0

Tested on Ubuntu 16.04.

More details can be found here: https://stackoverflow.com/questions/4290834/how-to-get-a-list-of-video-capture-devices-web-cameras-on-linux-ubuntu-c

  • 4
    On 16.04.1 error: Failed to open /dev/video0: No such file or directory – Xaqron Jan 3 '17 at 16:41
  • @Xaqron also try installing libv4l-dev if not already installed. Also give computer model if you can. Cheers. – Ciro Santilli 新疆改造中心996ICU六四事件 Jan 3 '17 at 18:00
  • 1
    Just because I keep coming back to this answer, it's now: v4l2-ctl --list-devices. That's lower in the answer but the top in bold text doesn't have the 2. – ksclarke Oct 11 '17 at 16:40
  • 1
    $ v4l2-ctl --list-devices Failed to open /dev/video0: No such file or directory – Mona Jalal Jun 21 '18 at 21:11
  • 1
    this is the correct actual answer. Thank you. – Joshua Robison Mar 12 at 0:15
1

For Windows you can use the pygrabber library: https://github.com/bunkahle/pygrabber

To check the user friendly names of the connected webcams:

from __future__ import print_function
from pygrabber.dshow_graph import FilterGraph

graph = FilterGraph()
print(graph.get_input_devices())

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