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1   /**
2    * Copyright (c) 2011, The University of Southampton and the individual contributors.
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without modification,
6    * are permitted provided that the following conditions are met:
7    *
8    *   * 	Redistributions of source code must retain the above copyright notice,
9    * 	this list of conditions and the following disclaimer.
10   *
11   *   *	Redistributions in binary form must reproduce the above copyright notice,
12   * 	this list of conditions and the following disclaimer in the documentation
13   * 	and/or other materials provided with the distribution.
14   *
15   *   *	Neither the name of the University of Southampton nor the names of its
16   * 	contributors may be used to endorse or promote products derived from this
17   * 	software without specific prior written permission.
18   *
19   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
23   * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26   * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29   */
30  package org.openimaj.content.slideshow;
31  
32  import java.io.IOException;
33  import java.util.List;
34  
35  import org.openimaj.video.capture.Device;
36  import org.openimaj.video.capture.VideoCapture;
37  
38  /**
39   * Utility class for getting a preferred camera.
40   * 
41   * Set the PREFERRED_DEVICE_NAME to the name of the device,
42   * then the other methods will return that device/capture object.
43   * 
44   * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
45   *
46   */
47  public class CameraSelector {
48  	/**
49  	 * The name of the preferred device
50  	 */
51  	public static String PREFERRED_DEVICE_NAME = "Logitech Camera";
52  	
53  	/**
54  	 * @return the preferred device
55  	 * @throws IOException
56  	 */
57  	public static Device getPreferredVideoCaptureDevice() throws IOException {
58  		List<Device> devices = VideoCapture.getVideoDevices();
59  		
60  		for (Device d : devices) {
61  			if (d.getNameStr().contains(PREFERRED_DEVICE_NAME)) { 
62  				return d;
63  			}
64  		}
65  		
66  		if (devices.size() > 0)
67  			return devices.get(0);
68  		
69  		return null;
70  	}
71  	
72  	/**
73  	 * Get a {@link VideoCapture} representing the preferred device.
74  	 * @param width the desired capture width
75  	 * @param height the desired capture height
76  	 * @return the VideoCapture for the preferred device
77  	 * @throws IOException
78  	 */
79  	public static VideoCapture getPreferredVideoCapture(int width, int height) throws IOException {
80  		return new VideoCapture(width, height, getPreferredVideoCaptureDevice());
81  	}
82  }