Hey guys,
I’ve successfully compiled OpenCV/OSC and TouchLib on my Linux machine (ubuntu 7.10). Drivers for my Camera (Sony EyeToy, yeah I know.. but the stores are closed today in Austria) are installed and it works with VLC (/dev/video1).

But TouchLib won’t recognize the Camera. Any Ideas, How touchlib can use /dev/video1 (v4l)?

Regards

hrmm… i haven’t had to deal with this in over a year or so, but have you tried a symbolic link to make /dev/video1 appear as /dev/video0 as well? seems like i played around with this last year, and finally i just gave up and rmmod’d the device that was being /dev/video0 so that the device i wanted became that… but i can’t remember right off ;p .... seemed like also maybe i tried to modify CvCaptureFilter, and didn’t get anywhere, nor did playing around with v4l-conf or any of that....

for now on linux system there isn’t a way to tell touchlib which device to use. There are probably hacks which could help you. (as executing modprobe with some additional info to tell your video driver which /dev/video use)

Thanks to th0m. A simple “hardlink” worked

Hi everybody,

I’ve a working webcam on /dev/video0 (checked with vlc)
but when i launch ./configapp each windows has no video (only grey background)

The hardlink didn’t work for me.. (I tried to link to /dev/video)

Any idea?

Anyway thanks for everyone’s work

it is possibly a v4l2 driver and opencv is only v4l1 ? not sure… did you have to do anything special in vlc?

to have it working in vlc i just had to specify the path /dev/video0 instead of the default /dev/video

I don’t know if my cam uses V4L1 or2 to work with vlc

Thank’s for your quick answer