/usr/include/x86_64-linux-gnu/visp3/core/vpFrameGrabber.h is in libvisp-core-dev 3.0.0-4.
This file is owned by root:root, with mode 0o644.
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*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2015 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://visp.inria.fr for more information.
*
* This software was developed at:
* Inria Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
*
* 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:
* Frame grabbing.
*
* Authors:
* Eric Marchand
*
*****************************************************************************/
#ifndef vpFrameGrabber_hh
#define vpFrameGrabber_hh
#include <visp3/core/vpImage.h>
#include <visp3/core/vpRGBa.h>
/*!
\file vpFrameGrabber.h
\brief Base class for all video devices. It is
designed to provide a generic front end to video sources.
*/
/*!
\class vpFrameGrabber
\brief Base class for all video devices. It is designed to provide a front
end to video sources.
This class should provide a virtual function that allows the acquisition
of an image.
The example below shows how to use this class.
\code
#include <visp3/core/vpConfig.h>
#include <visp3/core/vpImage.h>
#include <visp3/io/vpImageIo.h>
#include <visp3/sensor/vpV4l2Grabber.h>
#include <visp3/sensor/vp1394TwoGrabber.h>
int main()
{
#if defined(VISP_HAVE_V4L2) || defined(VISP_HAVE_DC1394)
vpImage<unsigned char> I;
vpFrameGrabber *g; // Generic framegrabber
#if defined( VISP_HAVE_DC1394 )
vp1394TwoGrabber *g_1394_2 = new vp1394TwoGrabber;
// specific settings for firewire grabber based on libdc1394-2.x version
g_1394_2->setVideoMode(vp1394TwoGrabber::vpVIDEO_MODE_320x240_YUV422);
g_1394_2->setFramerate(vp1394TwoGrabber::vpFRAMERATE_30);
g = g_1394_2;
#elif defined( VISP_HAVE_V4L2 )
vpV4l2Grabber *g_v4l2 = new vpV4l2Grabber;
// specific settings for Video For Linux Two grabber
g_v4l2->setInput(2); // Input 2 on the board
g_v4l2->setFramerate(vpV4l2Grabber::framerate_50fps); // 50 fps
g_v4l2->setWidth(384); // Acquired images are 768 width
g_v4l2->setHeight(288); // Acquired images are 576 height
g_v4l2->setNBuffers(3); // 3 ring buffers to ensure real-time acquisition
g = g_v4l2;
#endif
g->open(I); // Open the framegrabber
g->acquire(I); // Acquire an image
vpImageIo::write(I, "image.pgm"); // Write image on the disk
#endif
}
\endcode
\author Eric Marchand (Eric.Marchand@irisa.fr), Irisa / Inria Rennes
*/
class VISP_EXPORT vpFrameGrabber
{
public :
bool init ; //!< Set to true if the frame grabber has been initialized.
protected:
unsigned int height ; //!< Number of rows in the image.
unsigned int width ; //!< Number of columns in the image.
public:
//! Return the number of rows in the image.
inline unsigned int getHeight() const { return height ; }
//! Return the number of columns in the image.
inline unsigned int getWidth() const { return width ; }
public:
vpFrameGrabber() : init(false), height(0), width(0) {};
virtual ~vpFrameGrabber() { ; }
virtual void open(vpImage<unsigned char> &I) =0 ;
virtual void open(vpImage<vpRGBa> &I) =0 ;
virtual void acquire(vpImage<unsigned char> &I) =0 ;
virtual void acquire(vpImage<vpRGBa> &I) =0 ;
/*!
This virtual function is used to de-allocate
the memory used by a specific frame grabber
*/
virtual void close() =0 ;
} ;
#endif
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