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revision 1.2, Wed Jun 12 20:38:40 2002 UTC revision 1.3, Tue Sep 10 20:38:24 2002 UTC
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1  /* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */  /*****************************************************************************
   
 /*  
  * Disclaimer of Warranty  
2   *   *
3   * These software programs are available to the user without any license fee or   *  XVID MPEG-4 VIDEO CODEC
4   * royalty on an "as is" basis.  The MPEG Software Simulation Group disclaims   *  - fast disrete cosine transformation - integer C version
  * any and all warranties, whether express, implied, or statuary, including any  
  * implied warranties or merchantability or of fitness for a particular  
  * purpose.  In no event shall the copyright-holder be liable for any  
  * incidental, punitive, or consequential damages of any kind whatsoever  
  * arising from the use of these programs.  
  *  
  * This disclaimer of warranty extends to the user of these programs and user's  
  * customers, employees, agents, transferees, successors, and assigns.  
  *  
  * The MPEG Software Simulation Group does not represent or warrant that the  
  * programs furnished hereunder are free of infringement of any third-party  
  * patents.  
  *  
  * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,  
  * are subject to royalty fees to patent holders.  Many of these patents are  
  * general enough such that they are unavoidable regardless of implementation  
  * design.  
5   *   *
6   */   *  These routines are from Independent JPEG Group's free JPEG software
7     *  Copyright (C) 1991-1998, Thomas G. Lane (see the file README.IJG)
8     *
9     *  This program is an implementation of a part of one or more MPEG-4
10     *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
11     *  to use this software module in hardware or software products are
12     *  advised that its use may infringe existing patents or copyrights, and
13     *  any such use would be at such party's own risk.  The original
14     *  developer of this software module and his/her company, and subsequent
15     *  editors and their companies, will have no liability for use of this
16     *  software or modifications or derivatives thereof.
17     *
18     *  This program is free software; you can redistribute it and/or modify
19     *  it under the terms of the GNU General Public License as published by
20     *  the Free Software Foundation; either version 2 of the License, or
21     *  (at your option) any later version.
22     *
23     *  This program is distributed in the hope that it will be useful,
24     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
25     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
26     *  GNU General Public License for more details.
27     *
28     *  You should have received a copy of the GNU General Public License
29     *  along with this program; if not, write to the Free Software
30     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
31     *
32     *************************************************************************/
33    
34  /* This routine is a slow-but-accurate integer implementation of the  /* This routine is a slow-but-accurate integer implementation of the
35   * forward DCT (Discrete Cosine Transform). Taken from the IJG software   * forward DCT (Discrete Cosine Transform). Taken from the IJG software

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