索尼Ip相机opencv Java

Question

I am trying to take images from an IP cam (sony snc p1) for motion detection using opencv java. The stream is in mjpeg format and I am using opencv's VideoCapture to try to retrieve an image. I can grab an image from a video file using videocapture but when I try to open the camera doesn't work. I can view the stream on vlc but that ip address doesn't work on opencv. This is the code that I use:

while (true){
  VideoCapture camera1=newVideoCapture("http://192.168.0.101/mjpeg");                    
  if (!camera1.isOpened())                  
   System.out.println("Cannot open file");
}

Answer 1

What version are you using? In openCV 2.4 this is a known bug. (fixed in later versions)

You can olso try adding a dummy param, at the end, something like camera1.open("http://192.168.0.101/?dummy=video.mjpg"); because opencv VideoCapture expects an extension at the end of the file name.