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revision 1.17, Tue Nov 26 23:44:10 2002 UTC revision 1.21.2.7, Sat Jun 28 15:50:55 2003 UTC
# Line 1  Line 1 
1  /*****************************************************************************  /*****************************************************************************
2   *   *
3   *  XVID MPEG-4 VIDEO CODEC   *  XVID MPEG-4 VIDEO CODEC
4   *  - Global structures, constants -   *  - Global definitions  -
5   *   *
6   *  Copyright(C) 2002 Michael Militzer <isibaar@xvid.org>   *  Copyright(C) 2002 Michael Militzer <isibaar@xvid.org>
7   *   *
8   *  This file is part of XviD, a free MPEG-4 video encoder/decoder   *  This program is free software ; you can redistribute it and/or modify
9   *   *  it under the terms of the GNU General Public License as published by
  *  XviD is free software; you can redistribute it and/or modify it  
  *  under the terms of the GNU General Public License as published by  
10   *  the Free Software Foundation; either version 2 of the License, or   *  the Free Software Foundation; either version 2 of the License, or
11   *  (at your option) any later version.   *  (at your option) any later version.
12   *   *
# Line 21  Line 19 
19   *  along with this program; if not, write to the Free Software   *  along with this program; if not, write to the Free Software
20   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21   *   *
  *  Under section 8 of the GNU General Public License, the copyright  
  *  holders of XVID explicitly forbid distribution in the following  
  *  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.  
  *  
22   * $Id$   * $Id$
23   *   *
24   ****************************************************************************/   ****************************************************************************/
# Line 67  Line 36 
36  #define MODE_INTER4V    2  #define MODE_INTER4V    2
37  #define MODE_INTRA              3  #define MODE_INTRA              3
38  #define MODE_INTRA_Q    4  #define MODE_INTRA_Q    4
 #define MODE_STUFFING   7  
39  #define MODE_NOT_CODED  16  #define MODE_NOT_CODED  16
40    #define MODE_NOT_CODED_GMC      17
41    
42  /* --- bframe specific --- */  /* --- bframe specific --- */
43    
# Line 77  Line 46 
46  #define MODE_BACKWARD           2  #define MODE_BACKWARD           2
47  #define MODE_FORWARD            3  #define MODE_FORWARD            3
48  #define MODE_DIRECT_NONE_MV     4  #define MODE_DIRECT_NONE_MV     4
49    #define MODE_DIRECT_NO4V        5
50    
51    
52    /*
53     * vop coding types
54     * intra, prediction, backward, sprite, not_coded
55     */
56    #define I_VOP   0
57    #define P_VOP   1
58    #define B_VOP   2
59    #define S_VOP   3
60    #define N_VOP   4
61    
62    /* convert mpeg-4 coding type i/p/b/s_VOP to XVID_TYPE_xxx */
63    static __inline int
64    coding2type(int coding_type)
65    {
66            return coding_type + 1;
67    }
68    
69    /* convert XVID_TYPE_xxx to bitstream coding type i/p/b/s_VOP */
70    static __inline int
71    type2coding(int xvid_type)
72    {
73            return xvid_type - 1;
74    }
75    
76    
77    typedef struct
78    {
79            int x;
80            int y;
81    }
82    VECTOR;
83    
84    
85    
86    typedef struct
87    {
88            VECTOR duv[3];
89    }
90    WARPPOINTS;
91    
92    /* save all warping parameters for GMC once and for all, instead of
93       recalculating for every block. This is needed for encoding&decoding
94       When switching to incremental calculations, this will get much shorter
95    */
96    
97    /*      we don't include WARPPOINTS wp  here, but in FRAMEINFO itself */
98    
99    typedef struct
100    {
101            int num_wp;             /* [input]: 0=none, 1=translation, 2,3 = warping */
102                                                            /* a value of -1 means: "structure not initialized!" */
103            int s;                                  /* [input]: calc is done with 1/s pel resolution */
104    
105            int W;
106            int H;
107    
108            int ss;
109            int smask;
110            int sigma;
111    
112            int r;
113            int rho;
114    
115            int i0s;
116            int j0s;
117            int i1s;
118            int j1s;
119            int i2s;
120            int j2s;
121    
122            int i1ss;
123            int j1ss;
124            int i2ss;
125            int j2ss;
126    
127            int alpha;
128            int beta;
129            int Ws;
130            int Hs;
131    
132            int dxF, dyF, dxG, dyG;
133            int Fo, Go;
134            int cFo, cGo;
135    }
136    GMC_DATA;
137    
138    typedef struct NEW_GMC_DATA NEW_GMC_DATA;
139    struct NEW_GMC_DATA
140    {
141      int num_wp;   //  0=none, 1=translation, 2,3 = warping
142                    //  a value of -1 means: "structure not initialized!"
143      int accuracy;     // {0,1,2,3}  =>   {1/2,1/4,1/8,1/16} pel
144    
145      int sW, sH;   // sprite size * 16
146      int dU[2], dV[2], Uo, Vo, Uco, Vco;   // gradient, calculated from warp points
147    
148      void (*predict_16x16)(const NEW_GMC_DATA * const This,
149                            uint8_t *dst, const uint8_t *src,
150                            int dststride, int srcstride, int x, int y, int rounding);
151      void (*predict_8x8)  (const NEW_GMC_DATA * const This,
152                            uint8_t *uDst, const uint8_t *uSrc,
153                            uint8_t *vDst, const uint8_t *vSrc,
154                            int dststride, int srcstride, int x, int y, int rounding);
155      void (*get_average_mv)(NEW_GMC_DATA *Dsp, VECTOR * const mv,
156                             int x, int y, int qpel);
157    };
158    
159    typedef struct
160    {
161            uint8_t *y;
162            uint8_t *u;
163            uint8_t *v;
164    }
165    IMAGE;
166    
167    
168  typedef struct  typedef struct
# Line 88  Line 174 
174          uint32_t *tail;          uint32_t *tail;
175          uint32_t *start;          uint32_t *start;
176          uint32_t length;          uint32_t length;
177            uint32_t initpos;
178  }  }
179  Bitstream;  Bitstream;
180    
# Line 115  Line 202 
202    
203          VECTOR mv16;          VECTOR mv16;
204          VECTOR pmvs[4];          VECTOR pmvs[4];
205            VECTOR qmvs[4];                         /* mvs in quarter pixel resolution */
206    
207          int32_t sad8[4];                        /* SAD values for inter4v-VECTORs */          int32_t sad8[4];                        /* SAD values for inter4v-VECTORs */
208          int32_t sad16;                          /* SAD value for inter-VECTOR */          int32_t sad16;                          /* SAD value for inter-VECTOR */
# Line 125  Line 213 
213          /* bframe stuff */          /* bframe stuff */
214    
215          VECTOR b_mvs[4];          VECTOR b_mvs[4];
216          VECTOR b_pmvs[4];          VECTOR b_qmvs[4];
   
         /* bframe direct mode */  
   
         VECTOR directmv[4];  
         VECTOR deltamv;  
217    
218          int mb_type;          int mb_type;
         int dbquant;  
219    
220          /* stuff for block based ME (needed for Qpel ME) */          /*
221          /* backup of last integer ME vectors/sad */           * stuff for block based ME (needed for Qpel ME)
222             * backup of last integer ME vectors/sad
223             */
224    
225          VECTOR i_mv16;          VECTOR amv; /* average motion vectors from GMC  */
226          VECTOR i_mvs[4];          int32_t mcsel;
227    
228          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 */  
229    
230  }  }
231  MACROBLOCK;  MACROBLOCK;
232    
233  static __inline int8_t  static __inline uint32_t
234  get_dc_scaler(uint32_t quant,  get_dc_scaler(uint32_t quant,
235                            uint32_t lum)                            uint32_t lum)
236  {  {
# Line 173  Line 256 
256    
257  #define MIN(X, Y) ((X)<(Y)?(X):(Y))  #define MIN(X, Y) ((X)<(Y)?(X):(Y))
258  #define MAX(X, Y) ((X)>(Y)?(X):(Y))  #define MAX(X, Y) ((X)>(Y)?(X):(Y))
259  #define ABS(X)    (((X)>0)?(X):-(X))  /* #define ABS(X)    (((X)>0)?(X):-(X)) */
260  #define SIGN(X)   (((X)>0)?1:-1)  #define SIGN(X)   (((X)>0)?1:-1)
261    #define CLIP(X,AMIN,AMAX)   (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X))
262    #define DIV_DIV(a,b)    (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b))
263    #define SWAP(_T_,A,B)    { _T_ tmp = A; A = B; B = tmp; }
264    
265    
266  #endif /* _GLOBAL_H_ */  #endif /* _GLOBAL_H_ */

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