OpenCV test

gistfile1.java

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.atomic.AtomicLong;
import javax.imageio.ImageIO;
import org.bytedeco.javacpp.opencv_core;
import org.bytedeco.javacpp.opencv_highgui;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.FrameGrabber;

/**
 * @author sergey.pak
 *         Date: 12/15/2014
 *         Time: 6:29 PM
 */
public class OpenCV {
  public static void main(String[] args) throws FrameGrabber.Exception {
    System.out.println("java.library.path=" + System.getProperty("java.library.path"));
    System.load("c:\\windows\\system32\\KERNEL32.DLL");
    System.load("C:\\Windows\\System32\\msvcr100.dll");
    System.load("C:\\Windows\\System32\\msvcrt.dll");
    System.load("C:\\Program Files (x86)\\Screen Capturer Recorder\\screen-capture-recorder-x64.dll");
    System.load("E:\\tmp\\javacv\\javacv-bin\\dll\\AVUTIL-52.DLL");
    System.load("E:\\tmp\\javacv\\extrapath\\SWRESAMPLE-0.DLL");
    System.load("E:\\tmp\\javacv\\javacv-bin\\dll\\avcodec-55.DLL");
    System.load("E:\\tmp\\javacv\\javacv-bin\\dll\\jniavcodec.DLL");
    System.load("E:\\tmp\\javacv\\javacv-bin\\dll\\jniavcodec.DLL");
    final FFmpegFrameGrabber grabber = new FFmpegFrameGrabber("video=screen-capture-recorder");
    grabber.setBitsPerPixel(8);
    grabber.setFormat("dshow");
    grabber.setFrameRate(3);
    grabber.start();
    long startTime = System.currentTimeMillis();
    final SimpleDateFormat sdf = new SimpleDateFormat("HHmmss_SSS");
    final ExecutorService executorService = Executors.newCachedThreadPool(new ThreadFactory() {
      @Override
      public Thread newThread(final Runnable r) {
        Thread the = new Thread(r);
        //the.setPriority(Thread.MIN_PRIORITY);
        return the;

      }
    });
    final AtomicLong frames = new AtomicLong(0);
    new Thread(){
      private long prevFrames = 0;
      @Override
      public void run() {
        while (true) {
          final long elapsedFrames = frames.get() - prevFrames;
          if (elapsedFrames > 0) {
            prevFrames += elapsedFrames;
            System.out.println("Framerate: " + elapsedFrames / 10.0);
            try {
              Thread.sleep(10000);
            } catch (InterruptedException e) {
              e.printStackTrace();
            }
          }
          try {
            Thread.sleep(100);
          } catch (InterruptedException e) {
            e.printStackTrace();
          }
        }
      }
    }.start();
    final Thread thread = new Thread() {
      @Override
      public void run() {
        while (true) {
          try {
            final Frame frame = grabber.grabFrame(true);

            final Runnable task = new Runnable() {
              @Override
              public void run() {
                final BufferedImage bufferedImage = frame.image.getBufferedImage();
                final BufferedImage resized = new BufferedImage(400, 400, BufferedImage.TYPE_BYTE_INDEXED);
                final Graphics2D g = resized.createGraphics();
                g.drawImage(bufferedImage, 0, 0, 400, 400, null);
                g.dispose();
                File file = new File("img_" + sdf.format(new Date()) + ".jpg");
                FileOutputStream out = null;
                try {
                  out = new FileOutputStream(file);
                  ImageIO.write(resized, "jpg", new BufferedOutputStream(out));
                } catch (IOException e) {
                  e.printStackTrace();
                } finally {
                  if (out != null) {
                    try {
                      out.close();
                    } catch (IOException e) {
                      e.printStackTrace();
                    }
                  }
                }
              }
            };
            //executorService.submit(task);
            task.run();
            frames.incrementAndGet();
          } catch (Exception ex){
            ex.printStackTrace();
          }
        }
      }
    };
    thread.setPriority(Thread.MIN_PRIORITY);
    thread.start();

  }
}