OpenCV 2.2 Ubuntu11.04 Webcam not detected

I have checked out the OpenCV SVN repo, installed all necessary libraries, compiled it and installed it. Everything is fine, except that it won't find any cameras.

I currently have two webcams connected to my computer, the internal webcam and a PS3 eye.

ls /dev/video* gives

/dev/video0 /dev/video1

The video code:

VideoCapture capture(0);
if(!capture.isOpened())
{
   capture.open(1);
   if(!capture.isOpened())
      return 0;
}

There are no problems with opening video files instead of cameras.

I have tried to replace #include <videodev.h> with #include <libv4l1-videodev.h> in cap_v4l.cpp.

I have also tried the solutions on the Ubuntu OpenCV bug 321358 thread.

开发者_如何学Go

Any good ideas what to do next?

The cameras works just fine with the Ubuntu repository version, but we are working on VSLAM, so we need newer stuff.

---

You can find an explanation in this post at Stackoverflow, if you look at the comments.

The short explanation is that in the 11.04 distribution, Canonical removed the support for a particular library. So, OpenCV 2.2 (release) cannot compile anymore on Ubuntu 11.04. So the people at OpenCV removed the support for webcams in the SVN. I suppose they'll try to fix it as soon as possible

The most recent SVN version compiles, but cannot load video files nor use attached cameras