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revision 1.14, Wed Sep 4 21:59:27 2002 UTC revision 1.22, Fri Apr 4 22:16:15 2003 UTC
# Line 1  Line 1 
 /*****************************************************************************  
  *  
  *  XVID MPEG-4 VIDEO CODEC  
  *  - Global structures, constants -  
  *  
  *  Copyright(C) 2002 Michael Militzer  
  *  
  *  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.  
  *  
  *  This program is free software ; you can redistribute it and/or modify  
  *  it under the terms of the GNU General Public License as published by  
  *  the Free Software Foundation ; either version 2 of the License, or  
  *  (at your option) any later version.  
  *  
  *  This program is distributed in the hope that it will be useful,  
  *  but WITHOUT ANY WARRANTY ; without even the implied warranty of  
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  
  *  GNU General Public License for more details.  
  *  
  *  You should have received a copy of the GNU General Public License  
  *  along with this program ; if not, write to the Free Software  
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA  
  *  
  * $Id$  
  *  
  ****************************************************************************/  
   
1  #ifndef _GLOBAL_H_  #ifndef _GLOBAL_H_
2  #define _GLOBAL_H_  #define _GLOBAL_H_
3    
# Line 45  Line 11 
11  #define MODE_INTER4V    2  #define MODE_INTER4V    2
12  #define MODE_INTRA              3  #define MODE_INTRA              3
13  #define MODE_INTRA_Q    4  #define MODE_INTRA_Q    4
 #define MODE_STUFFING   7  
14  #define MODE_NOT_CODED  16  #define MODE_NOT_CODED  16
15    #define MODE_NOT_CODED_GMC      17
16    
17  /* --- bframe specific --- */  /* --- bframe specific --- */
18    
# Line 55  Line 21 
21  #define MODE_BACKWARD           2  #define MODE_BACKWARD           2
22  #define MODE_FORWARD            3  #define MODE_FORWARD            3
23  #define MODE_DIRECT_NONE_MV     4  #define MODE_DIRECT_NONE_MV     4
24    #define MODE_DIRECT_NO4V        5
25    
26    typedef struct
27    {
28            VECTOR duv[3];
29    }
30    WARPPOINTS;
31    
32    /* save all warping parameters for GMC once and for all, instead of
33       recalculating for every block. This is needed for encoding&decoding
34       When switching to incremental calculations, this will get much shorter
35    */
36    
37    /*      we don't include WARPPOINTS wp  here, but in FRAMEINFO itself */
38    
39    typedef struct
40    {
41            int num_wp;             //      [input]: 0=none, 1=translation, 2,3 = warping
42                                                            //  a value of -1 means: "structure not initialized!"
43            int s;                                  //  [input]: calc is done with 1/s pel resolution
44    
45            int W;
46            int H;
47    
48            int ss;
49            int smask;
50            int sigma;
51    
52            int r;
53            int rho;
54    
55            int i0s;
56            int j0s;
57            int i1s;
58            int j1s;
59            int i2s;
60            int j2s;
61    
62            int i1ss;
63            int j1ss;
64            int i2ss;
65            int j2ss;
66    
67            int alpha;
68            int beta;
69            int Ws;
70            int Hs;
71    
72            int dxF, dyF, dxG, dyG;
73            int Fo, Go;
74            int cFo, cGo;
75    }
76    GMC_DATA;
77    
78    
79    typedef struct
80    {
81            uint8_t *y;
82            uint8_t *u;
83            uint8_t *v;
84    }
85    IMAGE;
86    
87    
88  typedef struct  typedef struct
# Line 66  Line 94 
94          uint32_t *tail;          uint32_t *tail;
95          uint32_t *start;          uint32_t *start;
96          uint32_t length;          uint32_t length;
97            uint32_t initpos;
98  }  }
99  Bitstream;  Bitstream;
100    
# Line 93  Line 122 
122    
123          VECTOR mv16;          VECTOR mv16;
124          VECTOR pmvs[4];          VECTOR pmvs[4];
125            VECTOR qmvs[4];                         // mvs in quarter pixel resolution
126    
127          int32_t sad8[4];                        // SAD values for inter4v-VECTORs          int32_t sad8[4];                        // SAD values for inter4v-VECTORs
128          int32_t sad16;                          // SAD value for inter-VECTOR          int32_t sad16;                          // SAD value for inter-VECTOR
# Line 103  Line 133 
133          // bframe stuff          // bframe stuff
134    
135          VECTOR b_mvs[4];          VECTOR b_mvs[4];
136          VECTOR b_pmvs[4];          VECTOR b_qmvs[4];
   
         // bframe direct mode  
   
         VECTOR directmv[4];  
         VECTOR deltamv;  
137    
138          int mb_type;          int mb_type;
         int dbquant;  
139    
140          // stuff for block based ME (needed for Qpel ME)          // stuff for block based ME (needed for Qpel ME)
141          // backup of last integer ME vectors/sad          // backup of last integer ME vectors/sad
142    
143          VECTOR i_mv16;          VECTOR amv; // average motion vectors from GMC
144          VECTOR i_mvs[4];          int32_t mcsel;
145    
146          int32_t i_sad8[4];      // SAD values for inter4v-VECTORs  /* This structure has become way to big! What to do? Split it up?   */
         int32_t i_sad16;        // SAD value for inter-VECTOR  
147    
148  }  }
149  MACROBLOCK;  MACROBLOCK;
150    
151  static __inline int8_t  static __inline uint32_t
152  get_dc_scaler(uint32_t quant,  get_dc_scaler(uint32_t quant,
153                            uint32_t lum)                            uint32_t lum)
154  {  {
# Line 153  Line 176 
176  #define MAX(X, Y) ((X)>(Y)?(X):(Y))  #define MAX(X, Y) ((X)>(Y)?(X):(Y))
177  #define ABS(X)    (((X)>0)?(X):-(X))  #define ABS(X)    (((X)>0)?(X):-(X))
178  #define SIGN(X)   (((X)>0)?1:-1)  #define SIGN(X)   (((X)>0)?1:-1)
179    #define CLIP(X,AMIN,AMAX)   (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X))
180    #define DIV_DIV(a,b)    (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b))
181    
182    
183  #endif /* _GLOBAL_H_ */  #endif /* _GLOBAL_H_ */

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