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/home/slang/XVision2/src/Devices/Mpeg.h

/*                                                                -*-c++-*-
    Copyright (C) 1996-1997 Gregory D. Hager, Kinh Tieu
    Computer Science Robotics and Vision Laboratory)

    Permission is granted to any individual or institution to use, copy, 
    modify, and distribute this software, provided that this complete 
    copyright and permission notice is maintained, intact, in all copies 
    and supporting documentation.  Authors of papers that describe software 
    systems using this software package are asked to acknowledge such use
    by a brief statement in the paper.

    Gregory D. Hager provides this software "as is" without express or
    implied warranty.

*/
//-----------------------------------------------------------------------------
//
//  MPEG.hh
//
//  Declaration of the MPEG class.
//
//  10/21/96 Kinh Tieu, using
//
//                        The MPEG Library
// 
//                  Version 1.2 - 17 October, 1995
// 
// MPEG decoding engine (c) 1992 The Regents of the University of California
// Front end (c) 1994-95 Gregory P. Ward (greg@bic.mni.mcgill.ca)
//
// Copyright (c) 1994-95 by Gregory P. Ward.
// All rights reserved.
// 
// IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT,
// INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
// OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE
// UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT
// NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER
// IS ON AN "AS IS" BASIS, AND THE AUTHOR HAS NO OBLIGATION TO PROVIDE
// MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.  
//
//  and modeled on code for IMG_SEQ by Greg Hager and Jonathan Wang.
//
//-----------------------------------------------------------------------------

#ifndef MPEG_h
#define MPEG_h

#define DEF_MPEG_NUM   4

#include <stdio.h>


#include "XVImageRGB.h"
#include "Video.h"


//-----------------------------------------------------------------------------
//  Class : MPEG
// 
//* Class MPEG provides an interface between tracking and MPEG files,
//* allowing users to use MPEG sequences as a source of video sequences.
//*
//* See also, Class Image_SequenceMono (in files IMG_SEQ.*).
//-----------------------------------------------------------------------------

template <class T>
class MPEG : public Video<T>
{
  FILE *fd;
  XVImageRGB<XV_RGBA32> *work_img;
  int               convers_active;
public:

  MPEG (const char *fname = "mpeg_file.mpg",
                    const char *parm_string=NULL);

  virtual int open(const char *filename);
  void close();
  virtual int  initiate_acquire(int buffernum);
  virtual int  wait_for_completion(int buffernum);

  int set_params(char *params) {return 1;};

};


//-----------------------------------------------------------------------------
#endif

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