Video Recording from webcam using javacv

we can also record and save the video in any format from webcam using FFmpegFrameRecorder of javacv .

the initial set up can be done  before running the code  can be referenced from this example
http://errorsexception.blogspot.in/2016/01/basic-imagetransformation-using-javacv.html


The Code :

import org.bytedeco.javacpp.avutil;
import org.bytedeco.javacpp.opencv_core.IplImage;
import org.bytedeco.javacv.CanvasFrame;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.OpenCVFrameGrabber;

public class VideoRecordTest1 {
    public static void main(String[] args) throws Exception {
    OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);
        grabber.start();
        IplImage grabbedImage = grabber.grab();

        CanvasFrame canvasFrame = new CanvasFrame("Cam");
        canvasFrame.setCanvasSize(grabbedImage.width(), grabbedImage.height());

        System.out.println("framerate = " + grabber.getFrameRate());
        grabber.setFrameRate(grabber.getFrameRate());
        FFmpegFrameRecorder recorder = new FFmpegFrameRecorder("FILENAME",  grabber.getImageWidth(),grabber.getImageHeight());

        recorder.setVideoCodec(13);
        recorder.setFormat("mp4");
     
        recorder.setFrameRate(30);
        recorder.setVideoBitrate(10 * 1024 * 1024);

        recorder.start();
        while (canvasFrame.isVisible() && (grabbedImage = grabber.grab()) != null) {
            canvasFrame.showImage(grabbedImage);
            recorder.record(grabbedImage);
        }
        recorder.stop();
        grabber.stop();
        canvasFrame.dispose();
}
}



Happy Coding

For Any issue please let me know
thank you
Ashutosh