/** Stop the capture and release the frame grabbers */
private void releaseVideo() {
try {
frameGrabberLeft.stopCapture();
} catch (Exception e) {
}
try {
frameGrabberRight.stopCapture();
} catch (Exception e) {
}
try {
videoDevLeft.releaseFrameGrabber();
} catch (Exception e) {
}
try {
videoDevRight.releaseFrameGrabber();
} catch (Exception e) {
}
}
/**
* Initialise two FrameGrabber objects with the given parameters
*
* @param devLeft the video device file to capture from
* @param devRight the video device file to capture from
* @param w the desired capture width
* @param h the desired capture height
* @param std the capture standard
* @param channel the capture channel
* @param qty the JPEG compression quality
* @throws V4L4JException if any parameter if invalid
*/
private void initFrameGrabber(
String devLeft, String devRight, int w, int h, int std, int channel, int qty)
throws V4L4JException {
videoDevLeft = new VideoDevice(devLeft);
videoDevRight = new VideoDevice(devRight);
frameGrabberLeft = videoDevLeft.getJPEGFrameGrabber(w, h, channel, std, qty);
frameGrabberRight = videoDevRight.getJPEGFrameGrabber(w, h, channel, std, qty);
frameGrabberLeft.setCaptureCallback(this);
frameGrabberRight.setCaptureCallback(this);
frameGrabberLeft.startCapture();
frameGrabberRight.startCapture();
widthLeft = frameGrabberLeft.getWidth();
heightLeft = frameGrabberLeft.getHeight();
widthRight = frameGrabberRight.getWidth();
heightRight = frameGrabberRight.getHeight();
System.out.println(
"Starting capture at:\n"
+ "Left: "
+ widthLeft
+ "x"
+ heightLeft
+ "\nRight: "
+ widthRight
+ "x"
+ heightRight);
frame.setSize(widthLeft + widthRight, heightLeft);
labelLeft.setMaximumSize(new Dimension(widthLeft, heightLeft));
labelRight.setMaximumSize(new Dimension(widthRight, heightRight));
labelLeft.setBorder(BorderFactory.createLineBorder(Color.RED));
labelRight.setBorder(BorderFactory.createLineBorder(Color.RED));
}