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revision 1.2, Wed Jun 12 20:38:40 2002 UTC revision 1.4, Sat Nov 16 23:51:58 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 file is part of XviD, a free MPEG-4 video encoder/decoder
10     *
11     *  XviD is free software; you can redistribute it and/or modify it
12     *  under the terms of the GNU General Public License as published by
13     *  the Free Software Foundation; either version 2 of the License, or
14     *  (at your option) any later version.
15     *
16     *  This program is distributed in the hope that it will be useful,
17     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
18     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19     *  GNU General Public License for more details.
20     *
21     *  You should have received a copy of the GNU General Public License
22     *  along with this program; if not, write to the Free Software
23     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
24     *
25     *  Under section 8 of the GNU General Public License, the copyright
26     *  holders of XVID explicitly forbid distribution in the following
27     *  countries:
28     *
29     *    - Japan
30     *    - United States of America
31     *
32     *  Linking XviD statically or dynamically with other modules is making a
33     *  combined work based on XviD.  Thus, the terms and conditions of the
34     *  GNU General Public License cover the whole combination.
35     *
36     *  As a special exception, the copyright holders of XviD give you
37     *  permission to link XviD with independent modules that communicate with
38     *  XviD solely through the VFW1.1 and DShow interfaces, regardless of the
39     *  license terms of these independent modules, and to copy and distribute
40     *  the resulting combined work under terms of your choice, provided that
41     *  every copy of the combined work is accompanied by a complete copy of
42     *  the source code of XviD (the version of XviD used to produce the
43     *  combined work), being distributed under the terms of the GNU General
44     *  Public License plus this exception.  An independent module is a module
45     *  which is not derived from or based on XviD.
46     *
47     *  Note that people who make modified versions of XviD are not obligated
48     *  to grant this special exception for their modified versions; it is
49     *  their choice whether to do so.  The GNU General Public License gives
50     *  permission to release a modified version without this exception; this
51     *  exception also makes it possible to release a modified version which
52     *  carries forward this exception.
53     *
54     * $Id$
55     *
56     *************************************************************************/
57    
58  /* This routine is a slow-but-accurate integer implementation of the  /* This routine is a slow-but-accurate integer implementation of the
59   * forward DCT (Discrete Cosine Transform). Taken from the IJG software   * forward DCT (Discrete Cosine Transform). Taken from the IJG software

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