camviewer.VideoThread.java Source code

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Here is the source code for camviewer.VideoThread.java

Source

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package camviewer;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
import org.opencv.core.Mat;
import org.opencv.core.MatOfByte;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.videoio.VideoCapture;

public class VideoThread implements Runnable {
    protected volatile boolean runnable = false;
    VideoCapture webSource = null;
    Mat frame = new Mat();
    MatOfByte mem = new MatOfByte();
    Graphics graph;
    int width;
    int height;
    JPanel panel;

    public VideoThread(String url, JPanel p) {
        webSource = new VideoCapture(url);
        panel = p;
    }

    public void setRunnable(boolean r) {
        runnable = r;
    }

    @Override
    public void run() {
        synchronized (this) {
            while (runnable) {
                if (webSource.grab()) {
                    try {
                        webSource.retrieve(frame);
                        Imgcodecs.imencode(".bmp", frame, mem);
                        Image im = ImageIO.read(new ByteArrayInputStream(mem.toArray()));

                        BufferedImage buff = (BufferedImage) im;
                        Graphics g = panel.getGraphics();

                        if (g.drawImage(buff, 1, 1, panel.getWidth() - 1, panel.getHeight() - 1, 0, 0,
                                buff.getWidth(), buff.getHeight(), null))
                            if (runnable == false) {
                                System.out.println("Going to wait()");
                                this.wait();
                            }
                        g.drawRect(0, 0, panel.getWidth() - 1, panel.getHeight() - 1);
                    } catch (IOException | InterruptedException ex) {
                        System.out.println("Error" + ex);
                    }
                }
            }
        }
    }
}