Hello there! This is my first post here.
I'm playing a little bit with OpenCV but the webcam that i have on my desktop isn't app-friendly... so i could not get it working with OpenCV, it's a 0ac8:301b Z-Star Microelectronics Corp. ZC0301 WebCam
and it worked out of the box with Cheese and after a little bit of tweak i get it working with camorama also.
But some apps, like Skype and OpenCV demos doesn't work, believe me, i tried everything
to get it working, i tried even upgrading to a very new kernel.
So i had the idea to create a "virtual" video device and using some app that can read the wcam i could print the wcam's output on such device, which should be compatible and app-friendly, so i would use that device always...
Searching a little i found some pretty nice apps that could help me:
I tried vloopback exhaustingly, and i could not even load the v4l2loopback module, but avld is working well:
To input the image from video0(physicam cam) on video1(pseudocam) i use:
mencoder tv:// -tv "driver=v4l:device=/dev/video0:noaudio" -nosound -vf scale=320:240 -ovc raw -of rawvideo -o /dev/video1
And to read the pseudocam i use:
mplayer tv:// -tv "driver=v4l:device=/dev/video1:noaudio"
And it works flawlessly (just a little bit delayed) BUT it just works with mplayer... other programs like Cheese or Skype can't see the video1 device, even if i point Camorama to it (-d /dev/video1) the thing don't work.
I know other people could do it, a little app called gstfakevideo can create a virtual device that Skype detects, but it fails to get the image.
And my main problem is OpenCV, because i have a Windows partition which i'm using only because of Skype.
Thank you very much for your time and patience. Sorry my english.
Some extra infos:
lsmod | grep video
videodev 45184 3 avld,gspca_main,compat_ioctl32
v4l1_compat 23940 1 videodev
video 29204 0
output 11648 1 video
My system is an updated Ubuntu 9.04
Linux alan-desktop 2.6.28-15-generic #48-Ubuntu SMP Wed Jul 29 08:53:35 UTC 2009 x86_64 GNU/Linux