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revision 1.13.2.9, Fri Jan 31 22:25:18 2003 UTC revision 1.18, Sun Dec 15 01:21:12 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 <isibaar@xvid.org>
7     *
8     *  This file is part of XviD, a free MPEG-4 video encoder/decoder
9     *
10     *  XviD is free software; you can redistribute it and/or modify it
11     *  under the terms of the GNU General Public License as published by
12     *  the Free Software Foundation; either version 2 of the License, or
13     *  (at your option) any later version.
14     *
15     *  This program is distributed in the hope that it will be useful,
16     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18     *  GNU General Public License for more details.
19     *
20     *  You should have received a copy of the GNU General Public License
21     *  along with this program; if not, write to the Free Software
22     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23     *
24     *  Under section 8 of the GNU General Public License, the copyright
25     *  holders of XVID explicitly forbid distribution in the following
26     *  countries:
27     *
28     *    - Japan
29     *    - United States of America
30     *
31     *  Linking XviD statically or dynamically with other modules is making a
32     *  combined work based on XviD.  Thus, the terms and conditions of the
33     *  GNU General Public License cover the whole combination.
34     *
35     *  As a special exception, the copyright holders of XviD give you
36     *  permission to link XviD with independent modules that communicate with
37     *  XviD solely through the VFW1.1 and DShow interfaces, regardless of the
38     *  license terms of these independent modules, and to copy and distribute
39     *  the resulting combined work under terms of your choice, provided that
40     *  every copy of the combined work is accompanied by a complete copy of
41     *  the source code of XviD (the version of XviD used to produce the
42     *  combined work), being distributed under the terms of the GNU General
43     *  Public License plus this exception.  An independent module is a module
44     *  which is not derived from or based on XviD.
45     *
46     *  Note that people who make modified versions of XviD are not obligated
47     *  to grant this special exception for their modified versions; it is
48     *  their choice whether to do so.  The GNU General Public License gives
49     *  permission to release a modified version without this exception; this
50     *  exception also makes it possible to release a modified version which
51     *  carries forward this exception.
52     *
53     * $Id$
54     *
55     ****************************************************************************/
56    
57  #ifndef _GLOBAL_H_  #ifndef _GLOBAL_H_
58  #define _GLOBAL_H_  #define _GLOBAL_H_
59    
# Line 11  Line 67 
67  #define MODE_INTER4V    2  #define MODE_INTER4V    2
68  #define MODE_INTRA              3  #define MODE_INTRA              3
69  #define MODE_INTRA_Q    4  #define MODE_INTRA_Q    4
70    #define MODE_STUFFING   7
71  #define MODE_NOT_CODED  16  #define MODE_NOT_CODED  16
 #define MODE_NOT_CODED_GMC      17  
72    
73  /* --- bframe specific --- */  /* --- bframe specific --- */
74    
# Line 21  Line 77 
77  #define MODE_BACKWARD           2  #define MODE_BACKWARD           2
78  #define MODE_FORWARD            3  #define MODE_FORWARD            3
79  #define MODE_DIRECT_NONE_MV     4  #define MODE_DIRECT_NONE_MV     4
 #define MODE_DIRECT_NO4V        5  
   
 typedef struct  
 {  
         VECTOR duv[3];  
 }  
 WARPPOINTS;  
   
 /* save all warping parameters for GMC once and for all, instead of  
    recalculating for every block. This is needed for encoding&decoding  
    When switching to incremental calculations, this will get much shorter  
 */  
   
 /*      we don't include WARPPOINTS wp  here, but in FRAMEINFO itself */  
   
 typedef struct  
 {  
         int num_wp;             //      [input]: 0=none, 1=translation, 2,3 = warping  
                                                         //  a value of -1 means: "structure not initialized!"  
         int s;                                  //  [input]: calc is done with 1/s pel resolution  
   
         int W;  
         int H;  
   
         int ss;  
         int smask;  
         int sigma;  
   
         int r;  
         int rho;  
   
         int i0s;  
         int j0s;  
         int i1s;  
         int j1s;  
         int i2s;  
         int j2s;  
   
         int i1ss;  
         int j1ss;  
         int i2ss;  
         int j2ss;  
   
         int alpha;  
         int beta;  
         int Ws;  
         int Hs;  
   
         int dxF, dyF, dxG, dyG;  
         int Fo, Go;  
         int cFo, cGo;  
 }  
 GMC_DATA;  
   
   
 typedef struct  
 {  
         uint8_t *y;  
         uint8_t *u;  
         uint8_t *v;  
 }  
 IMAGE;  
80    
81    
82  typedef struct  typedef struct
# Line 103  Line 97 
97    
98  typedef struct  typedef struct
99  {  {
100          // decoder/encoder          /* decoder/encoder  */
101          VECTOR mvs[4];          VECTOR mvs[4];
102    
103          short int pred_values[6][MBPRED_SIZE];          short int pred_values[6][MBPRED_SIZE];
104          int acpred_directions[6];          int acpred_directions[6];
105    
106          int mode;          int mode;
107          int quant;                                      // absolute quant          int quant;                                      /* absolute quant */
108    
109          int field_dct;          int field_dct;
110          int field_pred;          int field_pred;
111          int field_for_top;          int field_for_top;
112          int field_for_bot;          int field_for_bot;
113    
114          // encoder specific          /* encoder specific */
115    
116          VECTOR mv16;          VECTOR mv16;
117          VECTOR pmvs[4];          VECTOR pmvs[4];
         VECTOR qmvs[4];                         // mvs in quarter pixel resolution  
118    
119          int32_t sad8[4];                        // SAD values for inter4v-VECTORs          int32_t sad8[4];                        /* SAD values for inter4v-VECTORs */
120          int32_t sad16;                          // SAD value for inter-VECTOR          int32_t sad16;                          /* SAD value for inter-VECTOR */
121    
122          int dquant;          int dquant;
123          int cbp;          int cbp;
124    
125          // bframe stuff          /* bframe stuff */
126    
127          VECTOR b_mvs[4];          VECTOR b_mvs[4];
128          VECTOR b_qmvs[4];          VECTOR b_pmvs[4];
 //      VECTOR b_pmvs[1];  
129    
130          // bframe direct mode          /* bframe direct mode */
131    
132  //      VECTOR directmv[4];          VECTOR directmv[4];
133  //      VECTOR deltamv;          VECTOR deltamv;
134    
135          int mb_type;          int mb_type;
136          int dbquant;          int dbquant;
137    
138          // stuff for block based ME (needed for Qpel ME)          /* stuff for block based ME (needed for Qpel ME) */
139          // backup of last integer ME vectors/sad          /* backup of last integer ME vectors/sad */
140    
141  //      VECTOR i_mv16;          VECTOR i_mv16;
142          VECTOR i_mvs[4];          VECTOR i_mvs[4];
143    
144          int32_t i_sad8[4];      // SAD values for inter4v-VECTORs          int32_t i_sad8[4];      /* SAD values for inter4v-VECTORs */
145  //      int32_t i_sad16;        // SAD value for inter-VECTOR          int32_t i_sad16;        /* SAD value for inter-VECTOR */
   
         VECTOR amv; // average motion vectors from GMC  
         int32_t mcsel;  
   
 /* This structure has become way to big! What to do? Split it up?   */  
146    
147  }  }
148  MACROBLOCK;  MACROBLOCK;
# Line 168  Line 155 
155                  return 8;                  return 8;
156    
157          if (quant < 25 && !lum)          if (quant < 25 && !lum)
158                  return (quant + 13) / 2;                  return (int8_t)((quant + 13) / 2);
159    
160          if (quant < 9)          if (quant < 9)
161                  return 2 * quant;                  return (int8_t)(2 * quant);
162    
163          if (quant < 25)          if (quant < 25)
164                  return quant + 8;                  return (int8_t)(quant + 8);
165    
166          if (lum)          if (lum)
167                  return 2 * quant - 16;                  return (int8_t)(2 * quant - 16);
168          else          else
169                  return quant - 6;                  return (int8_t)(quant - 6);
170  }  }
171    
172  // useful macros  /* useful macros */
173    
174  #define MIN(X, Y) ((X)<(Y)?(X):(Y))  #define MIN(X, Y) ((X)<(Y)?(X):(Y))
175  #define MAX(X, Y) ((X)>(Y)?(X):(Y))  #define MAX(X, Y) ((X)>(Y)?(X):(Y))
176  #define ABS(X)    (((X)>0)?(X):-(X))  #define ABS(X)    (((X)>0)?(X):-(X))
177  #define SIGN(X)   (((X)>0)?1:-1)  #define SIGN(X)   (((X)>0)?1:-1)
 #define CLIP(X,AMIN,AMAX)   (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X))  
 #define DIV_DIV(a,b)    (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b))  
178    
179    
180  #endif                                                  /* _GLOBAL_H_ */  #endif                                                  /* _GLOBAL_H_ */
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