Java调用摄像头代码,Java代码库,德仔网

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【Java】 Java调用摄像头
作者:Fitzgerald / 发布于2016/3/15/ 736
这是采用fmj框架在Windows下调用摄像头的小例子，因为依赖的dll是32位的，所以只能用32位的JDK才能正常运行。我在这个聊天程序中有使用。下载地址：http://download.csdn.net/detail/onlyxiahui/9455632
package com.only.video;
 
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.FlowLayout;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;
 
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;
 
public class CameraFrame extends JFrame {
 
    /**
     *
     */
    private static final long serialVersionUID = 1L;
    CameraVideoPanel cameraVideoPanel = new CameraVideoPanel();
 
    private List<VideoFrame> frameList = new ArrayList<VideoFrame>();
 
    public CameraFrame() {
        this.setTitle("摄像头应用");
        this.setSize(480, 500);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        JPanel buttonPanel = new JPanel(new FlowLayout());
 
        this.getContentPane().setLayout(new BorderLayout());
        this.getContentPane().add(cameraVideoPanel, BorderLayout.CENTER);
        this.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
        JButton selectButton = new JButton("选择摄像头");
        buttonPanel.add(selectButton);
        selectButton.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e) {
                String m = cameraVideoPanel.chooseDevice();
                cameraVideoPanel.setMediaLocator(m);
            }
        });
 
        JButton startButton = new JButton("开始");
        buttonPanel.add(startButton);
        startButton.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e) {
                System.out.println(cameraVideoPanel.startVideo());
            }
        });
        JButton stopButton = new JButton("停止");
        buttonPanel.add(stopButton);
        stopButton.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e) {
                cameraVideoPanel.stopVideo();
            }
        });
        JButton addButton = new JButton("添加");
        buttonPanel.add(addButton);
        addButton.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e) {
                add();
            }
        });
        JButton deletButton = new JButton("删除");
        buttonPanel.add(deletButton);
        deletButton.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e) {
                delete();
            }
        });
        new ImageThread().start();
    }
 
    private void add() {
        VideoFrame videoFrame = new VideoFrame();
        videoFrame.setVisible(true);
        frameList.add(videoFrame);
    }
 
    private void delete() {
        if (!frameList.isEmpty()) {
            VideoFrame videoFrame = (VideoFrame) frameList.remove(0);
            if (null != videoFrame) {
                videoFrame.setVisible(false);
            }
        }
 
    }
 
    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (Exception ex) {
            java.util.logging.Logger.getLogger(CameraFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        String dllpath = "dll";
        SystemUtil.addLibPath(dllpath);
        // System.loadLibrary("CameraFrame");
        CameraFrame camera = new CameraFrame();
        camera.setVisible(true);
    }
 
    /**
     * 这是模拟把视频信息发送出去，如视频聊天
     * @Author: XiaHui
     * @Date: 2016年3月8日
     * @ModifyUser: XiaHui
     * @ModifyDate: 2016年3月8日
     */
    class ImageThread extends Thread {
 
        public void run() {
            while (true) {
                try {
                    createImage();
                    sleep(50);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
 
        public void createImage() {
            BufferedImage image = new BufferedImage(800, 480, BufferedImage.TYPE_INT_ARGB);
            Graphics2D g = image.createGraphics();
            cameraVideoPanel.paint(g);
            g.dispose();
            ImageIcon icon = new ImageIcon();
            icon.setImage(image);
            for (VideoFrame vf : frameList) {
                vf.showImageIcon(icon);
            }
        }
    }
 
    class VideoFrame extends JFrame {
        private static final long serialVersionUID = 1L;
 
        JLabel label = new JLabel();
 
        public VideoFrame() {
            this.setMinimumSize(new java.awt.Dimension(750, 520));
            this.setResizable(false);
            this.setLocationRelativeTo(null);
            this.setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
            this.setLayout(new CardLayout());
            add(label);
        }
 
        public void showImageIcon(ImageIcon icon) {
            label.setIcon(icon);
        }
    }
}
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