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Re: Webcam resolution in VLC (and elsewhere)

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On Thu, 31 Dec 2020 21:48:33 +0100
Eugen Dedu <eugen.dedu@univ-fcomte.fr> wrote:

> Hi Celejar,
> 
> To find out the capabilities of your camera, you can install v4l-utils 
> and execute:
> v4l2-ctl --list-devices
> v4l2-ctl -d /dev/video0 --list-formats
> v4l2-ctl -d /dev/video0 --list-formats-ext
> Check also the other /dev/video* files.
> 
> Another method is to use qv4l2 (provided by the homonym package), which 
> is very user-friendly and I think it uses v4l2-ctl to find information.

Thanks. I used the lsusb method described here:

https://askubuntu.com/questions/214977/how-can-i-find-out-the-supported-webcam-resolutions

> The above information comes from 
> https://wiki.archlinux.org/index.php/webcam_setup.
> 
> Cheese and vlc must not be used to find out available resolutions.  On 
> my Dell built-in webcam both show 640x480 and below, whereas my camera 
> supports 1280x720, as given by the laptop specification and 
> v4l2-ctl/qv4l2.  As about why do these applications use this resolution, 
> I do not have any idea.

Interesting. On my machine, Cheese does seem to correctly list the
available resolutions.

Thanks again,

Celejar

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Thread

Webcam resolution in VLC (and elsewhere) Celejar <celejar@gmail.com> - 2020-12-30 16:40 +0100
  Re: Webcam resolution in VLC (and elsewhere) didier gaumet <didier.gaumet@gmail.com> - 2020-12-30 20:20 +0100
    Re: Webcam resolution in VLC (and elsewhere) Celejar <celejar@gmail.com> - 2020-12-31 17:00 +0100
      Re: Webcam resolution in VLC (and elsewhere) Michael Stone <mstone@debian.org> - 2020-12-31 17:20 +0100
        Re: Webcam resolution in VLC (and elsewhere) Celejar <celejar@gmail.com> - 2021-01-01 16:00 +0100
          Re: Webcam resolution in VLC (and elsewhere) Michael Stone <mstone@debian.org> - 2021-01-01 18:50 +0100
            Re: Webcam resolution in VLC (and elsewhere) Celejar <celejar@gmail.com> - 2021-01-01 22:20 +0100
      Re: Webcam resolution in VLC (and elsewhere) Gene Heskett <gheskett@shentel.net> - 2020-12-31 18:20 +0100
        Re: Webcam resolution in VLC (and elsewhere) Brian <ad44@cityscape.co.uk> - 2021-01-08 21:20 +0100
          Re: Webcam resolution in VLC (and elsewhere) Charles Curley <charlescurley@charlescurley.com> - 2021-01-09 00:50 +0100
            Re: Webcam resolution in VLC (and elsewhere) Brian <ad44@cityscape.co.uk> - 2021-01-09 01:20 +0100
              Re: Webcam resolution in VLC (and elsewhere) Charles Curley <charlescurley@charlescurley.com> - 2021-01-09 02:10 +0100
              Re: Webcam resolution in VLC (and elsewhere) Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-09 07:30 +0100
                Re: Webcam resolution in VLC (and elsewhere) David <bouncingcats@gmail.com> - 2021-01-09 13:30 +0100
                Re: Webcam resolution in VLC (and elsewhere) rhkramer@gmail.com - 2021-01-09 15:50 +0100
                Re: Webcam resolution in VLC (and elsewhere) Brian <ad44@cityscape.co.uk> - 2021-01-09 21:30 +0100
  Re: Webcam resolution in VLC (and elsewhere) didier gaumet <didier.gaumet@gmail.com> - 2020-12-30 20:30 +0100
    Re: Webcam resolution in VLC (and elsewhere) Celejar <celejar@gmail.com> - 2020-12-31 17:00 +0100
  Re: Webcam resolution in VLC (and elsewhere) Eugen Dedu <eugen.dedu@univ-fcomte.fr> - 2020-12-31 22:10 +0100
    Re: Webcam resolution in VLC (and elsewhere) Celejar <celejar@gmail.com> - 2021-01-01 15:50 +0100

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