ViSP  2.8.0
manGrabV4l2.cpp

Images grabbing example with the vpV4l2Grabber class.

/****************************************************************************
*
* $Id: manGrabV4l2.cpp 4056 2013-01-05 13:04:42Z fspindle $
*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2013 by INRIA. All rights reserved.
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.txt at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using ViSP with software that can not be combined with the GNU
* GPL, please contact INRIA about acquiring a ViSP Professional
* Edition License.
*
* See http://www.irisa.fr/lagadic/visp/visp.html for more information.
*
* This software was developed at:
* INRIA Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
* http://www.irisa.fr/lagadic
*
* If you have questions regarding the use of this file, please contact
* INRIA at visp@inria.fr
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
*
* Description:
* Images grabbing example.
*
* Authors:
* Anthony Saunier
* Fabien Spindler
*
*****************************************************************************/
#include <visp/vpImage.h>
#include <visp/vpV4l2Grabber.h>
int main()
{
vpImage<unsigned char> I; // Grey level image
#ifdef VISP_HAVE_V4L2
g.setInput(2); // Input 2 on the board
g.setWidth(768); // Acquired images are 768 width
g.setHeight(576); // Acquired images are 576 height
g.setNBuffers(3); // 3 ring buffers to ensure real-time acquisition
g.open(I); // Open the grabber
for ( ; ; )
g.acquire(I); // Acquire a 768x576 grey image
#endif
return 0;
}