자바 웹캠 연동하기

자바로 웹캠 화면 출력하기!

예전에 했던 프로젝트에 필요해서 찾았었는데 저장 안해놨다가 지금에서야나마 기록하려고 한다.

일단 코드 분석 다시 해야지

Sarxos 라이브러리를 사용했던 것 같은데 아직은 좀 더 찾아봐야겟다.

소스

package webCam;
 
import java.awt.BorderLayout;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.lang.Thread.UncaughtExceptionHandler;
 
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
 
import com.github.sarxos.webcam.Webcam;
import com.github.sarxos.webcam.WebcamDiscoveryEvent;
import com.github.sarxos.webcam.WebcamDiscoveryListener;
import com.github.sarxos.webcam.WebcamEvent;
import com.github.sarxos.webcam.WebcamListener;
import com.github.sarxos.webcam.WebcamPanel;
import com.github.sarxos.webcam.WebcamPicker;
import com.github.sarxos.webcam.WebcamResolution;
 
/**
 * Proof of concept of how to handle webcam video stream from Java
 * 
 * @author Bartosz Firyn (SarXos)
 */
public class WebcamViewerExample extends JFrame implements Runnable, WebcamListener, WindowListener,
        UncaughtExceptionHandler, ItemListener, WebcamDiscoveryListener {
 
    private Webcam webcam = null;
    private WebcamPanel panel = null;
    private WebcamPicker picker = null;
 
    @Override
    public void run() {
 
        Webcam.addDiscoveryListener(this);
        setTitle("Java Webcam Capture POC");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new BorderLayout());
 
        addWindowListener(this);
 
        picker = new WebcamPicker();
        picker.addItemListener(this);
 
        webcam = picker.getSelectedWebcam();
 
        if (webcam == null) {
            System.out.println("No webcams found...");
            System.exit(1);
        }
 
        webcam.setViewSize(WebcamResolution.VGA.getSize());
        webcam.addWebcamListener(WebcamViewerExample.this);
 
        panel = new WebcamPanel(webcam, false);
        panel.setFPSDisplayed(true);
 
        add(picker, BorderLayout.NORTH);
        add(panel, BorderLayout.CENTER);
 
        pack();
        setVisible(true);
 
        Thread t = new Thread() {
 
            @Override
            public void run() {
                panel.start();
            }
        };
        t.setName("example-starter");
        t.setDaemon(true);
        t.setUncaughtExceptionHandler(this);
        t.start();
    }
 
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new WebcamViewerExample());
    }
 
    @Override
    public void webcamOpen(WebcamEvent we) {
        System.out.println("webcam open");
    }
 
    @Override
    public void webcamClosed(WebcamEvent we) {
        System.out.println("webcam closed");
    }
 
    @Override
    public void webcamDisposed(WebcamEvent we) {
        System.out.println("webcam disposed");
    }
 
    @Override
    public void webcamImageObtained(WebcamEvent we) {
        // do nothing
    }
 
    @Override
    public void windowActivated(WindowEvent e) {
    }
 
    @Override
    public void windowClosed(WindowEvent e) {
        webcam.close();
    }
 
    @Override
    public void windowClosing(WindowEvent e) {
    }
 
    @Override
    public void windowOpened(WindowEvent e) {
    }
 
    @Override
    public void windowDeactivated(WindowEvent e) {
    }
 
    @Override
    public void windowDeiconified(WindowEvent e) {
        System.out.println("webcam viewer resumed");
        panel.resume();
    }
 
    @Override
    public void windowIconified(WindowEvent e) {
        System.out.println("webcam viewer paused");
        panel.pause();
    }
 
    @Override
    public void uncaughtException(Thread t, Throwable e) {
        System.err.println(String.format("Exception in thread %s", t.getName()));
        e.printStackTrace();
    }
 
    @Override
    public void itemStateChanged(ItemEvent e) {
        if (e.getItem() != webcam) {
            if (webcam != null) {
 
                panel.stop();
 
                remove(panel);
 
                webcam.removeWebcamListener(this);
                webcam.close();
 
                webcam = (Webcam) e.getItem();
                webcam.setViewSize(WebcamResolution.VGA.getSize());
                webcam.addWebcamListener(this);
 
                System.out.println("selected " + webcam.getName());
 
                panel = new WebcamPanel(webcam, false);
                panel.setFPSDisplayed(true);
 
                add(panel, BorderLayout.CENTER);
                pack();
 
                Thread t = new Thread() {
 
                    @Override
                    public void run() {
                        panel.start();
                    }
                };
                t.setName("example-stoper");
                t.setDaemon(true);
                t.setUncaughtExceptionHandler(this);
                t.start();
            }
        }
    }
 
    @Override
    public void webcamFound(WebcamDiscoveryEvent event) {
        if (picker != null) {
            picker.addItem(event.getWebcam());
        }
    }
 
    @Override
    public void webcamGone(WebcamDiscoveryEvent event) {
        if (picker != null) {
            picker.removeItem(event.getWebcam());
        }
    }
}

필요한 라이브러리

캡쳐후 나오는 사진

여러개의 카메라 포트를 가져오고 그 중에서 선택한 카메라를 가져와 화면에 출력해준다.