Change default webcam settings

opul · 10-08-2014, 05:09 AM

Hi

I have a webcam connected via USB that I connect/ disconnect quite frequently. I also need to change the settings (shutter speed, gain etc..), every time, which I do in guvcview for Ubuntu 14.

But at some point this becomes a bit of a hassle. Does someone know what files I have to change so that when I reconnect a webcam, it will automatically have the preferred settings?

j-ray · 10-09-2014, 02:09 AM

I do not know whether there is config file you could edit but you could set the values in a script like below.

Quote:

#!/usr/bin/perl

# Logitech HD 720p Autofocus
system("uvcdynctrl -s 'Brightness' 120");
system("uvcdynctrl -s 'Contrast' 35");
system("uvcdynctrl -s 'Saturation' 50");
system("uvcdynctrl -s 'Sharpness' 100");
system("uvcdynctrl -s 'Focus, Auto' 1");

Then call the script when the webcam has started. It must be executable. (chmod 0755 /path/file.pl)