I've been using webcams with FreeBSD, but since I live in a country that has 50 Hz power frequency, there is always flicker from the lights as the camera by default uses 60 Hz. I know you can change the frequency in other operating systems, so I investigated, and it seems the v4l way is to use
However, when I run this command (or almost any switches) on FreeBSD, I get the following:
Is there something I can do to help
I would really like to have flicker-free video under FreeBSD and I suspect some FreeBSD user in a 50 Hz country has run into this issue before.
v4l2-ctl
with something like: v4l2-ctl --set-ctrl=power_line_frequency=1
However, when I run this command (or almost any switches) on FreeBSD, I get the following:
Code:
# v4l2-ctl -L
Unable to detect what device /dev/video0 is, exiting.
Is there something I can do to help
v4l2-ctl
do the right thing? If there's a different way to configure this, please let me know.I would really like to have flicker-free video under FreeBSD and I suspect some FreeBSD user in a 50 Hz country has run into this issue before.