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revision 653, Sun Nov 17 00:41:20 2002 UTC revision 851, Sat Feb 15 15:22:19 2003 UTC
# Line 1  Line 1 
1  /**************************************************************************  /**************************************************************************
2   *   *
3   *      XVID MPEG-4 VIDEO CODEC   *      XVID MPEG-4 VIDEO CODEC
4   *      - quantization/dequantization -   *      quantization/dequantization
5   *   *
6   *  This file is part of XviD, a free MPEG-4 video encoder/decoder   *      This program is an implementation of a part of one or more MPEG-4
7     *      Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
8     *      to use this software module in hardware or software products are
9     *      advised that its use may infringe existing patents or copyrights, and
10     *      any such use would be at such party's own risk.  The original
11     *      developer of this software module and his/her company, and subsequent
12     *      editors and their companies, will have no liability for use of this
13     *      software or modifications or derivatives thereof.
14   *   *
15   *  XviD is free software; you can redistribute it and/or modify it   *      This program is free software; you can redistribute it and/or modify
16   *  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
17   *  the Free Software Foundation; either version 2 of the License, or   *  the Free Software Foundation; either version 2 of the License, or
18   *  (at your option) any later version.   *  (at your option) any later version.
19   *   *
# Line 17  Line 24 
24   *   *
25   *  You should have received a copy of the GNU General Public License   *  You should have received a copy of the GNU General Public License
26   *  along with this program; if not, write to the Free Software   *  along with this program; if not, write to the Free Software
27   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA   *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28   *   *
29   *  Under section 8 of the GNU General Public License, the copyright   *************************************************************************/
30   *  holders of XVID explicitly forbid distribution in the following  
31   *  countries:  /**************************************************************************
  *  
  *    - Japan  
  *    - United States of America  
  *  
  *  Linking XviD statically or dynamically with other modules is making a  
  *  combined work based on XviD.  Thus, the terms and conditions of the  
  *  GNU General Public License cover the whole combination.  
  *  
  *  As a special exception, the copyright holders of XviD give you  
  *  permission to link XviD with independent modules that communicate with  
  *  XviD solely through the VFW1.1 and DShow interfaces, regardless of the  
  *  license terms of these independent modules, and to copy and distribute  
  *  the resulting combined work under terms of your choice, provided that  
  *  every copy of the combined work is accompanied by a complete copy of  
  *  the source code of XviD (the version of XviD used to produce the  
  *  combined work), being distributed under the terms of the GNU General  
  *  Public License plus this exception.  An independent module is a module  
  *  which is not derived from or based on XviD.  
  *  
  *  Note that people who make modified versions of XviD are not obligated  
  *  to grant this special exception for their modified versions; it is  
  *  their choice whether to do so.  The GNU General Public License gives  
  *  permission to release a modified version without this exception; this  
  *  exception also makes it possible to release a modified version which  
  *  carries forward this exception.  
32   *   *
33   * $Id: quant_h263.c,v 1.4 2002-11-17 00:41:19 edgomez Exp $   *      History:
34     *
35     *  26.12.2001  dequant_inter bug fix
36     *      22.12.2001      clamp dequant output to [-2048,2047]
37     *  19.11.2001  quant_inter now returns sum of abs. coefficient values
38     *      02.11.2001      added const to function args <pross@cs.rmit.edu.au>
39     *      28.10.2001      total rewrite <pross@cs.rmit.edu.au>
40   *   *
41   *************************************************************************/   *************************************************************************/
42    
43    #include "../global.h"
44  #include "quant_h263.h"  #include "quant_h263.h"
45    
46  /*      mutliply+shift division table  /*      mutliply+shift division table
# Line 73  Line 62 
62    
63    
64    
 #define DIV_DIV(a, b) ((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b)  
   
65  // function pointers  // function pointers
66  quanth263_intraFuncPtr quant_intra;  quanth263_intraFuncPtr quant_intra;
67  quanth263_intraFuncPtr dequant_intra;  quanth263_intraFuncPtr dequant_intra;
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