[cvs] / xvidcore / src / dct / fdct.c Repository:
ViewVC logotype

Diff of /xvidcore/src/dct/fdct.c

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.3, Tue Sep 10 20:38:24 2002 UTC revision 1.7, Mon Mar 22 22:36:23 2004 UTC
# Line 1  Line 1 
1  /*****************************************************************************  /*****************************************************************************
2   *   *
3   *  XVID MPEG-4 VIDEO CODEC   *  XVID MPEG-4 VIDEO CODEC
4   *  - fast disrete cosine transformation - integer C version   *  - Forward DCT  -
5   *   *
6   *  These routines are from Independent JPEG Group's free JPEG software   *  These routines are from Independent JPEG Group's free JPEG software
7   *  Copyright (C) 1991-1998, Thomas G. Lane (see the file README.IJG)   *  Copyright (C) 1991-1998, Thomas G. Lane (see the file README.IJG)
8   *   *
  *  This program is an implementation of a part of one or more MPEG-4  
  *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending  
  *  to use this software module in hardware or software products are  
  *  advised that its use may infringe existing patents or copyrights, and  
  *  any such use would be at such party's own risk.  The original  
  *  developer of this software module and his/her company, and subsequent  
  *  editors and their companies, will have no liability for use of this  
  *  software or modifications or derivatives thereof.  
  *  
9   *  This program is free software; you can redistribute it and/or modify   *  This program is free software; you can redistribute it and/or modify
10   *  it under the terms of the GNU General Public License as published by   *  it under the terms of the GNU General Public License as published by
11   *  the Free Software Foundation; either version 2 of the License, or   *  the Free Software Foundation; either version 2 of the License, or
# Line 29  Line 20 
20   *  along with this program; if not, write to the Free Software   *  along with this program; if not, write to the Free Software
21   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22   *   *
23   *************************************************************************/   * $Id$
24     *
25     ****************************************************************************/
26    
27    /* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
28    
29    /*
30     * Disclaimer of Warranty
31     *
32     * These software programs are available to the user without any license fee or
33     * royalty on an "as is" basis.  The MPEG Software Simulation Group disclaims
34     * any and all warranties, whether express, implied, or statuary, including any
35     * implied warranties or merchantability or of fitness for a particular
36     * purpose.  In no event shall the copyright-holder be liable for any
37     * incidental, punitive, or consequential damages of any kind whatsoever
38     * arising from the use of these programs.
39     *
40     * This disclaimer of warranty extends to the user of these programs and user's
41     * customers, employees, agents, transferees, successors, and assigns.
42     *
43     * The MPEG Software Simulation Group does not represent or warrant that the
44     * programs furnished hereunder are free of infringement of any third-party
45     * patents.
46     *
47     * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
48     * are subject to royalty fees to patent holders.  Many of these patents are
49     * general enough such that they are unavoidable regardless of implementation
50     * design.
51     *
52     */
53    
54  /* This routine is a slow-but-accurate integer implementation of the  /* This routine is a slow-but-accurate integer implementation of the
55   * forward DCT (Discrete Cosine Transform). Taken from the IJG software   * forward DCT (Discrete Cosine Transform). Taken from the IJG software
# Line 114  Line 134 
134  #define FIX_2_562915447  ((int) 20995)  /* FIX(2.562915447) */  #define FIX_2_562915447  ((int) 20995)  /* FIX(2.562915447) */
135  #define FIX_3_072711026  ((int) 25172)  /* FIX(3.072711026) */  #define FIX_3_072711026  ((int) 25172)  /* FIX(3.072711026) */
136    
137  // function pointer  /* function pointer */
138  fdctFuncPtr fdct;  fdctFuncPtr fdct;
139    
140  /*  /*

Legend:
Removed from v.1.3  
changed lines
  Added in v.1.7

No admin address has been configured
ViewVC Help
Powered by ViewVC 1.0.4