001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.examples.video;
031
032import java.awt.event.KeyAdapter;
033import java.awt.event.KeyEvent;
034import java.io.IOException;
035
036import javax.swing.SwingUtilities;
037
038import org.openimaj.image.MBFImage;
039import org.openimaj.video.Video;
040import org.openimaj.video.VideoDisplay;
041import org.openimaj.video.VideoDisplayListener;
042import org.openimaj.video.capture.VideoCapture;
043import org.openimaj.video.xuggle.XuggleVideoWriter;
044
045/**
046 * Record the webcam to a file.
047 * 
048 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
049 */
050public class VideoRecordingExample extends KeyAdapter implements VideoDisplayListener<MBFImage> {
051        private Video<MBFImage> video;
052        private VideoDisplay<MBFImage> display;
053        private XuggleVideoWriter writer;
054        private boolean close = false;
055
056        /**
057         * Default constructor
058         * 
059         * @throws IOException
060         */
061        public VideoRecordingExample() throws IOException {
062                // open webcam
063                video = new VideoCapture(320, 240);
064
065                // open display
066                display = VideoDisplay.createVideoDisplay(video);
067
068                // open a writer
069                writer = new XuggleVideoWriter("video.flv", video.getWidth(), video.getHeight(), 30);
070
071                // set this class to listen to video display events
072                display.addVideoListener(this);
073
074                // set this class to listen to keyboard events
075                SwingUtilities.getRoot(display.getScreen()).addKeyListener(this);
076        }
077
078        @Override
079        public void afterUpdate(VideoDisplay<MBFImage> display) {
080                // Do nothing
081        }
082
083        @Override
084        public void beforeUpdate(MBFImage frame) {
085                // write a frame
086                if (!close) {
087                        writer.addFrame(frame);
088                }
089        }
090
091        @Override
092        public void keyPressed(KeyEvent key) {
093                // wait for the escape key to be pressed
094                close = key.getKeyCode() == KeyEvent.VK_ESCAPE;
095        }
096
097        /**
098         * Main method
099         * 
100         * @param args
101         *            ignored
102         * @throws IOException
103         */
104        public static void main(String[] args) throws IOException {
105                new VideoRecordingExample();
106        }
107}