Visual Servoing Platform  version 3.0.1
manGrabDirectShow.cpp
1 /****************************************************************************
2  *
3  * This file is part of the ViSP software.
4  * Copyright (C) 2005 - 2017 by Inria. All rights reserved.
5  *
6  * This software is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * ("GPL") version 2 as published by the Free Software Foundation.
9  * See the file LICENSE.txt at the root directory of this source
10  * distribution for additional information about the GNU GPL.
11  *
12  * For using ViSP with software that can not be combined with the GNU
13  * GPL, please contact Inria about acquiring a ViSP Professional
14  * Edition License.
15  *
16  * See http://visp.inria.fr for more information.
17  *
18  * This software was developed at:
19  * Inria Rennes - Bretagne Atlantique
20  * Campus Universitaire de Beaulieu
21  * 35042 Rennes Cedex
22  * France
23  *
24  * If you have questions regarding the use of this file, please contact
25  * Inria at visp@inria.fr
26  *
27  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
28  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
29  *
30  * Description:
31  * Images grabbing example.
32  *
33  * Authors:
34  * Anthony Saunier
35  * Fabien Spindler
36  *
37  *****************************************************************************/
51 #include <visp3/core/vpConfig.h>
52 
53 #include <visp3/core/vpImage.h>
54 #include <visp3/sensor/vpDirectShowGrabber.h>
55 
56 int main()
57 {
58  try {
59  vpImage<unsigned char> I; // Grey level image
60 
61 #ifdef VISP_HAVE_DIRECTSHOW
62  vpDirectShowGrabber g; // Create the grabber
63  if(g.getDeviceNumber() == 0) //test if a camera is connected
64  {
65  g.close();
66  return -1;
67  }
68 
69  g.open(); // Initialize the grabber
70 
71  g.setImageSize(640,480); // If the camera supports 640x480 image size
72  g.setFramerate(30); // If the camera supports 30fps framerate
73 
74  for ( ; ; )
75  g.acquire(I); // Acquire an image
76 #endif
77 
78  return 0;
79  }
80  catch(vpException &e) {
81  std::cout << "Catch an exception: " << e << std::endl;
82  return 1;
83  }
84 
85 }
error that can be emited by ViSP classes.
Definition: vpException.h:73
class for windows direct show devices
bool setFramerate(double framerate)
void acquire(vpImage< unsigned char > &I)
bool setImageSize(unsigned int width, unsigned int height)
unsigned int getDeviceNumber()