Visual Servoing Platform version 3.5.0
manGrabDirectShow.cpp
1/****************************************************************************
2 *
3 * ViSP, open source Visual Servoing Platform software.
4 * Copyright (C) 2005 - 2019 by Inria. All rights reserved.
5 *
6 * This software is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 * See the file LICENSE.txt at the root directory of this source
11 * distribution for additional information about the GNU GPL.
12 *
13 * For using ViSP with software that can not be combined with the GNU
14 * GPL, please contact Inria about acquiring a ViSP Professional
15 * Edition License.
16 *
17 * See http://visp.inria.fr for more information.
18 *
19 * This software was developed at:
20 * Inria Rennes - Bretagne Atlantique
21 * Campus Universitaire de Beaulieu
22 * 35042 Rennes Cedex
23 * France
24 *
25 * If you have questions regarding the use of this file, please contact
26 * Inria at visp@inria.fr
27 *
28 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
29 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
30 *
31 * Description:
32 * Images grabbing example.
33 *
34 * Authors:
35 * Anthony Saunier
36 * Fabien Spindler
37 *
38 *****************************************************************************/
52#include <visp3/core/vpConfig.h>
53
54#include <visp3/core/vpImage.h>
55#include <visp3/sensor/vpDirectShowGrabber.h>
56
57int main()
58{
59 try {
60 vpImage<unsigned char> I; // Grey level image
61
62#ifdef VISP_HAVE_DIRECTSHOW
63 vpDirectShowGrabber g; // Create the grabber
64 if (g.getDeviceNumber() == 0) // test if a camera is connected
65 {
66 g.close();
67 return -1;
68 }
69
70 g.open(); // Initialize the grabber
71
72 g.setImageSize(640, 480); // If the camera supports 640x480 image size
73 g.setFramerate(30); // If the camera supports 30fps framerate
74
75 for (;;)
76 g.acquire(I); // Acquire an image
77#endif
78
79 return EXIT_SUCCESS;
80 } catch (const vpException &e) {
81 std::cout << "Catch an exception: " << e << std::endl;
82 return EXIT_FAILURE;
83 }
84}
class for windows direct show devices
void acquire(vpImage< unsigned char > &I)
unsigned int getDeviceNumber()
bool setImageSize(unsigned int width, unsigned int height)
bool setFramerate(double framerate)
error that can be emited by ViSP classes.
Definition: vpException.h:72