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.content.slideshow;
031
032import java.io.IOException;
033import java.util.List;
034
035import org.openimaj.video.capture.Device;
036import org.openimaj.video.capture.VideoCapture;
037
038/**
039 * Utility class for getting a preferred camera.
040 * 
041 * Set the PREFERRED_DEVICE_NAME to the name of the device,
042 * then the other methods will return that device/capture object.
043 * 
044 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
045 *
046 */
047public class CameraSelector {
048        /**
049         * The name of the preferred device
050         */
051        public static String PREFERRED_DEVICE_NAME = "Logitech Camera";
052        
053        /**
054         * @return the preferred device
055         * @throws IOException
056         */
057        public static Device getPreferredVideoCaptureDevice() throws IOException {
058                List<Device> devices = VideoCapture.getVideoDevices();
059                
060                for (Device d : devices) {
061                        if (d.getNameStr().contains(PREFERRED_DEVICE_NAME)) { 
062                                return d;
063                        }
064                }
065                
066                if (devices.size() > 0)
067                        return devices.get(0);
068                
069                return null;
070        }
071        
072        /**
073         * Get a {@link VideoCapture} representing the preferred device.
074         * @param width the desired capture width
075         * @param height the desired capture height
076         * @return the VideoCapture for the preferred device
077         * @throws IOException
078         */
079        public static VideoCapture getPreferredVideoCapture(int width, int height) throws IOException {
080                return new VideoCapture(width, height, getPreferredVideoCaptureDevice());
081        }
082}