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revision 1.8, Sat May 11 12:28:19 2002 UTC revision 1.14, Wed Sep 4 21:59:27 2002 UTC
# Line 1  Line 1 
1    /*****************************************************************************
2     *
3     *  XVID MPEG-4 VIDEO CODEC
4     *  - Global structures, constants -
5     *
6     *  Copyright(C) 2002 Michael Militzer
7     *
8     *  This program is an implementation of a part of one or more MPEG-4
9     *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
10     *  to use this software module in hardware or software products are
11     *  advised that its use may infringe existing patents or copyrights, and
12     *  any such use would be at such party's own risk.  The original
13     *  developer of this software module and his/her company, and subsequent
14     *  editors and their companies, will have no liability for use of this
15     *  software or modifications or derivatives thereof.
16     *
17     *  This program is free software ; you can redistribute it and/or modify
18     *  it under the terms of the GNU General Public License as published by
19     *  the Free Software Foundation ; either version 2 of the License, or
20     *  (at your option) any later version.
21     *
22     *  This program is distributed in the hope that it will be useful,
23     *  but WITHOUT ANY WARRANTY ; without even the implied warranty of
24     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25     *  GNU General Public License for more details.
26     *
27     *  You should have received a copy of the GNU General Public License
28     *  along with this program ; if not, write to the Free Software
29     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
30     *
31     * $Id$
32     *
33     ****************************************************************************/
34    
35  #ifndef _GLOBAL_H_  #ifndef _GLOBAL_H_
36  #define _GLOBAL_H_  #define _GLOBAL_H_
37    
# Line 43  Line 77 
77  {  {
78          // decoder/encoder          // decoder/encoder
79          VECTOR mvs[4];          VECTOR mvs[4];
         int32_t sad8[4];                // (signed!) SAD values for inter4v-VECTORs  
         int32_t sad16;                  // (signed!) SAD value for inter-VECTOR  
80    
81      short int pred_values[6][MBPRED_SIZE];      short int pred_values[6][MBPRED_SIZE];
82      int acpred_directions[6];      int acpred_directions[6];
# Line 59  Line 91 
91    
92          // encoder specific          // encoder specific
93    
94            VECTOR mv16;
95          VECTOR pmvs[4];          VECTOR pmvs[4];
96    
97            int32_t sad8[4];                        // SAD values for inter4v-VECTORs
98            int32_t sad16;                          // SAD value for inter-VECTOR
99    
100          int dquant;          int dquant;
101          int cbp;          int cbp;
102    
# Line 68  Line 105 
105          VECTOR b_mvs[4];          VECTOR b_mvs[4];
106          VECTOR b_pmvs[4];          VECTOR b_pmvs[4];
107    
108            // bframe direct mode
109    
110            VECTOR directmv[4];
111            VECTOR deltamv;
112    
113          int mb_type;          int mb_type;
114          int dbquant;          int dbquant;
115    
116  } MACROBLOCK;          // stuff for block based ME (needed for Qpel ME)
117            // backup of last integer ME vectors/sad
118    
119            VECTOR i_mv16;
120            VECTOR i_mvs[4];
121    
122            int32_t i_sad8[4];      // SAD values for inter4v-VECTORs
123            int32_t i_sad16;        // SAD value for inter-VECTOR
124    
125    }
126    MACROBLOCK;
127    
128  static __inline int8_t get_dc_scaler(uint32_t quant, uint32_t lum)  static __inline int8_t
129    get_dc_scaler(uint32_t quant,
130                              uint32_t lum)
131  {  {
132          if(quant < 5)          if(quant < 5)
133          return 8;          return 8;

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