I am working on a javaCV project and I need to display and record what the webcam is capturing. The problem is that the output video in my code has a higher speed than the real. I tried changing the frameRate of the FrameGrabber and FrameRecorder but is not the solution.
I would appreciate if anyone could help me: Here is my code:
public static void main(String[] args) throws Exception, org.bytedeco.javacv.FrameGrabber.Exception, org.bytedeco.javacv.FrameRecorder.Exception{
// Display dimension
int ancho = java.awt.Toolkit.getDefaultToolkit().getScreenSize().width;
int alto = java.awt.Toolkit.getDefaultToolkit().getScreenSize().height;
int screenNumber = CanvasFrame.getScreenDevices().length > 1 ? 1 : 0;
FrameGrabber grabber = FrameGrabber.createDefault(0);
grabber.setFrameRate(24);
FrameRecorder recorder = FrameRecorder.createDefault("output.avi", ancho, alto);
recorder.setFrameRate(24);
recorder.start();
// CanvasFrame is a JFrame containing a Canvas component, which is hardware accelerated.
// It can also switch into full-screen mode when called with a screenNumber.
// We should also specify the relative monitor/camera response for proper gamma correction.
//Fullscreen mode
CanvasFrame frame = new CanvasFrame("Prueba Webcam", CanvasFrame.getDefaultGamma()/grabber.getGamma());
DisplayMode displaymode = frame.getDisplayMode(screenNumber);
frame.dispose();
CanvasFrame frame2 = new CanvasFrame("Prueba 2", screenNumber, displaymode,CanvasFrame.getDefaultGamma()/grabber.getGamma());
while (frame2.isVisible() ) {
// Exit with "Esc"
frame2.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent ke) { // handler
if(ke.getKeyCode() == ke.VK_ESCAPE) {
try {
buildResults();
System.out.println("escaped ?");
System.exit(0);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
System.out.println("not escaped");
}
}
});
//Display and record image
frame2.showImage(grabber.grab());
recorder.record(grabber.grab());
}
frame2.dispose();
recorder.stop();
grabber.stop();
}
}
