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revision 1.21, Fri Feb 21 14:49:28 2003 UTC revision 1.21.2.8, Sun Jul 13 09:58:26 2003 UTC
# Line 1  Line 1 
1    /*****************************************************************************
2     *
3     *  XVID MPEG-4 VIDEO CODEC
4     *  - Global definitions  -
5     *
6     *  Copyright(C) 2002 Michael Militzer <isibaar@xvid.org>
7     *
8     *  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
10     *  the Free Software Foundation ; either version 2 of the License, or
11     *  (at your option) any later version.
12     *
13     *  This program is distributed in the hope that it will be useful,
14     *  but WITHOUT ANY WARRANTY ; without even the implied warranty of
15     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16     *  GNU General Public License for more details.
17     *
18     *  You should have received a copy of the GNU General Public License
19     *  along with this program ; if not, write to the Free Software
20     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21     *
22     * $Id$
23     *
24     ****************************************************************************/
25    
26  #ifndef _GLOBAL_H_  #ifndef _GLOBAL_H_
27  #define _GLOBAL_H_  #define _GLOBAL_H_
28    
# Line 23  Line 48 
48  #define MODE_DIRECT_NONE_MV     4  #define MODE_DIRECT_NONE_MV     4
49  #define MODE_DIRECT_NO4V        5  #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  typedef struct
87  {  {
88          VECTOR duv[3];          VECTOR duv[3];
# Line 38  Line 98 
98    
99  typedef struct  typedef struct
100  {  {
101          int num_wp;             //      [input]: 0=none, 1=translation, 2,3 = warping          int num_wp;             /* [input]: 0=none, 1=translation, 2,3 = warping */
102                                                          //  a value of -1 means: "structure not initialized!"                                                          /* a value of -1 means: "structure not initialized!" */
103          int s;                                  //  [input]: calc is done with 1/s pel resolution          int s;                                  /* [input]: calc is done with 1/s pel resolution */
104    
105          int W;          int W;
106          int H;          int H;
# Line 75  Line 135 
135  }  }
136  GMC_DATA;  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)(const NEW_GMC_DATA * const Dsp, VECTOR * const mv,
156                             int x, int y, int qpel);
157    };
158    
159  typedef struct  typedef struct
160  {  {
# Line 94  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 103  Line 184 
184    
185  typedef struct  typedef struct
186  {  {
187          // decoder/encoder          /* decoder/encoder */
188          VECTOR mvs[4];          VECTOR mvs[4];
189    
190          short int pred_values[6][MBPRED_SIZE];          short int pred_values[6][MBPRED_SIZE];
191          int acpred_directions[6];          int acpred_directions[6];
192    
193          int mode;          int mode;
194          int quant;                                      // absolute quant          int quant;                                      /* absolute quant */
195    
196          int field_dct;          int field_dct;
197          int field_pred;          int field_pred;
198          int field_for_top;          int field_for_top;
199          int field_for_bot;          int field_for_bot;
200    
201          // encoder specific          /* encoder specific */
202    
203          VECTOR mv16;          VECTOR mv16;
204          VECTOR pmvs[4];          VECTOR pmvs[4];
205          VECTOR qmvs[4];                         // mvs in quarter pixel resolution          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 */
209    
210          int dquant;          int dquant;
211          int cbp;          int cbp;
212    
213          // bframe stuff          /* bframe stuff */
214    
215          VECTOR b_mvs[4];          VECTOR b_mvs[4];
216          VECTOR b_qmvs[4];          VECTOR b_qmvs[4];
217    
218          int mb_type;          int mb_type;
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 amv; // average motion vectors from GMC          VECTOR amv; /* average motion vectors from GMC  */
226          int32_t mcsel;          int32_t mcsel;
227    
228  /* This structure has become way to big! What to do? Split it up?   */  /* This structure has become way to big! What to do? Split it up?   */
# Line 169  Line 252 
252                  return quant - 6;                  return quant - 6;
253  }  }
254    
255  // useful macros  /* useful macros */
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))  #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))  #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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