vpVideoReader.h

/****************************************************************************
 *
 * $Id: vpImagePoint.h 2359 2009-11-24 15:09:25Z nmelchio $
 *
 * 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:
 * Read videos and sequences of images .
 *
 * Authors:
 * Nicolas Melchior
 * Fabien Spindler
 *
 *****************************************************************************/

#ifndef vpVideoReader_H
#define vpVideoReader_H

#include <string>

#include <visp/vpDiskGrabber.h>
#include <visp/vpFFMPEG.h>

class VISP_EXPORT vpVideoReader : public vpFrameGrabber
{    
  private:
    vpDiskGrabber *imSequence;
#ifdef VISP_HAVE_FFMPEG
    vpFFMPEG *ffmpeg;
#endif
    typedef enum
    {
      FORMAT_PGM,
      FORMAT_PPM,
      FORMAT_JPEG,
      FORMAT_PNG,
      FORMAT_AVI,
      FORMAT_MPEG,
      FORMAT_MOV,
      FORMAT_OGV,
      FORMAT_UNKNOWN
    } vpVideoFormatType;
    
    vpVideoFormatType formatType;
    
    char fileName[FILENAME_MAX];
    bool initFileName;
    bool isOpen;
    long frameCount;
    long firstFrame;
    long lastFrame;

  public:
    vpVideoReader();
    ~vpVideoReader();
    
    void acquire(vpImage< vpRGBa > &I);
    void acquire(vpImage< unsigned char > &I);
    void close(){;}

    bool getFrame(vpImage<vpRGBa> &I, long frame);
    bool getFrame(vpImage<unsigned char> &I, long frame);
    inline long getFrameIndex() const { return frameCount;}

    inline long getLastFrameIndex() const {return lastFrame;}
    void open (vpImage< vpRGBa > &I);
    void open (vpImage< unsigned char > &I);

    inline void resetFrameCounter() {frameCount = firstFrame;}
    void setFileName(const char *filename);
    void setFileName(const std::string &filename);
    inline void setFirstFrameIndex(const long firstFrame) {this->firstFrame = firstFrame;}    
    
  private:
    vpVideoFormatType getFormat(const char *filename);
    static std::string getExtension(const std::string &filename);
    void findLastFrameIndex();
};

#endif