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1 : edgomez 1382 /*****************************************************************************
2 :     *
3 :     * XVID MPEG-4 VIDEO CODEC
4 :     * - Motion Estimation related header -
5 :     *
6 :     * Copyright(C) 2002 Christoph Lampert <gruel@web.de>
7 :     * 2002 Michael Militzer <michael@xvid.org>
8 :     * 2002-2003 Radoslaw Czyz <xvid@syskin.cjb.net>
9 :     *
10 :     * This program is free software ; you can redistribute it and/or modify
11 :     * it 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 : syskin 1506 * $Id: estimation.h,v 1.6 2004-07-18 11:48:08 syskin Exp $
25 : edgomez 1382 *
26 :     ****************************************************************************/
27 :    
28 :     #ifndef _ESTIMATION_H_
29 :     #define _ESTIMATION_H_
30 :    
31 :     #include "../portab.h"
32 :     #include "../global.h"
33 :     #include "../image/reduced.h"
34 :    
35 :     /* hard coded motion search parameters */
36 :    
37 :     /* very large value */
38 :     #define MV_MAX_ERROR (4096 * 256)
39 :    
40 :     /* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */
41 :     #define MV16_INTER_BIAS 450
42 :    
43 :     /* vector map (vlc delta size) smoother parameters ! float !*/
44 :     #define NEIGH_TEND_16X16 10.5
45 :     #define NEIGH_TEND_8X8 40.0
46 :     #define NEIGH_8X8_BIAS 40
47 :    
48 :     #define BITS_MULT 16
49 :    
50 : syskin 1443 #define INITIAL_SKIP_THRESH 6
51 : edgomez 1382 #define FINAL_SKIP_THRESH 50
52 :     #define MAX_SAD00_FOR_SKIP 20
53 :     #define MAX_CHROMA_SAD_FOR_SKIP 22
54 :    
55 :     /* Parameters which control inter/inter4v decision */
56 :     #define IMV16X16 2
57 :    
58 :     extern const int xvid_me_lambda_vec16[32];
59 :    
60 :     #define CHECK_CANDIDATE(X,Y,D) { \
61 :     CheckCandidate((X),(Y), data, (D) ); }
62 :    
63 :     #define RRV_MV_SCALEDOWN(a) ( (a)>=0 ? (a+1)/2 : (a-1)/2 )
64 :    
65 :     /* fast ((A)/2)*2 */
66 :     #define EVEN(A) (((A)<0?(A)+1:(A)) & ~1)
67 :    
68 :     #define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) )
69 :    
70 :     static const VECTOR zeroMV = { 0, 0 };
71 :    
72 :     typedef struct
73 :     {
74 :     /* data modified by CheckCandidates */
75 :     int32_t iMinSAD[5]; /* smallest SADs found so far */
76 :     VECTOR currentMV[5]; /* best vectors found so far */
77 :     VECTOR currentQMV[5]; /* as above, but used during qpel search */
78 :     int temp[4]; /* temporary space */
79 :     unsigned int dir; /* 'direction', set when better vector is found */
80 :     int chromaX, chromaY, chromaSAD; /* info to make ChromaSAD faster */
81 :    
82 :     /* general fields */
83 :     int max_dx, min_dx, max_dy, min_dy; /* maximum range */
84 :     uint32_t rounding; /* rounding type in use */
85 :     VECTOR predMV; /* vector which predicts current vector */
86 :     const uint8_t * RefP[6]; /* reference pictures - N, V, H, HV, cU, cV */
87 :     const uint8_t * Cur; /* current picture */
88 :     const uint8_t *CurU, *CurV; /* current picture - chroma planes */
89 :    
90 :     uint8_t * RefQ; /* temporary space for interpolations */
91 :     uint32_t lambda16; /* how much vector bits weight */
92 :     uint32_t lambda8; /* as above - for inter4v mode */
93 :     uint32_t iEdgedWidth; /* picture's stride */
94 :     uint32_t iFcode; /* current fcode */
95 : syskin 1441
96 : edgomez 1382 int qpel; /* if we're coding in qpel mode */
97 :     int qpel_precision; /* if X and Y are in qpel precision (refinement probably) */
98 :     int chroma; /* should we include chroma SAD? */
99 :     int rrv; /* are we using reduced resolution? */
100 :    
101 :     /* fields for interpolate and direct modes */
102 :     const uint8_t * b_RefP[6]; /* backward reference pictures - N, V, H, HV, cU, cV */
103 :     VECTOR bpredMV; /* backward prediction - used interpolate mode only */
104 :     uint32_t bFcode; /* backward fcode - used as above */
105 : syskin 1443 int b_chromaX, b_chromaY;
106 : edgomez 1382
107 :     /* fields for direct mode */
108 :     VECTOR directmvF[4]; /* scaled reference vectors */
109 :     VECTOR directmvB[4]; /* as above */
110 :     const VECTOR * referencemv; /* pointer to not-scaled reference vectors */
111 :    
112 :     /* BITS/R-D stuff */
113 :     int16_t * dctSpace; /* temporary space for dct */
114 :     uint32_t iQuant; /* current quant */
115 :     uint32_t quant_type; /* current quant type */
116 : syskin 1506 unsigned int cbp[2]; /* CBP of the best vector found so far + cbp for inter4v search */
117 : edgomez 1382 const uint16_t * scan_table; /* current scan table */
118 :     const uint16_t * mpeg_quant_matrices; /* current MPEG quantization matrices */
119 : syskin 1506 int lambda[6]; /* R-D lambdas for all 6 blocks */
120 : edgomez 1382
121 :     } SearchData;
122 :    
123 :     typedef void(CheckFunc)(const int x, const int y,
124 :     SearchData * const Data,
125 :     const unsigned int Direction);
126 :    
127 :     CheckFunc CheckCandidate16no4v; /* shared between p-vop and b-vop search */
128 :    
129 :     uint8_t *
130 :     xvid_me_interpolate8x8qpel(const int x, const int y, const uint32_t block,
131 :     const uint32_t dir, const SearchData * const data);
132 :    
133 :     uint8_t *
134 :     xvid_me_interpolate16x16qpel(const int x, const int y, const uint32_t dir,
135 :     const SearchData * const data);
136 :    
137 :     int32_t
138 :     xvid_me_ChromaSAD(const int dx, const int dy, SearchData * const data);
139 :    
140 :     int
141 :     xvid_me_SkipDecisionP(const IMAGE * current, const IMAGE * reference,
142 :     const int x, const int y,
143 :     const uint32_t stride, const uint32_t iQuant, int rrv);
144 :    
145 :     #define iDiamondSize 2
146 :     typedef void
147 :     MainSearchFunc(int x, int y, SearchData * const Data,
148 :     int bDirection, CheckFunc * const CheckCandidate);
149 :    
150 :     MainSearchFunc xvid_me_DiamondSearch, xvid_me_AdvDiamondSearch, xvid_me_SquareSearch;
151 :    
152 :     void
153 : syskin 1478 xvid_me_SubpelRefine(VECTOR centerMV, SearchData * const data, CheckFunc * const CheckCandidate, int dir);
154 : edgomez 1382
155 : syskin 1441 void
156 :     FullRefine_Fast(SearchData * data, CheckFunc * CheckCandidate, int direction);
157 : edgomez 1382
158 :     void
159 :     xvid_me_ModeDecision_RD(SearchData * const Data,
160 :     MACROBLOCK * const pMB,
161 :     const MACROBLOCK * const pMBs,
162 :     const int x, const int y,
163 :     const MBParam * const pParam,
164 :     const uint32_t MotionFlags,
165 :     const uint32_t VopFlags,
166 :     const uint32_t VolFlags,
167 :     const IMAGE * const pCurrent,
168 :     const IMAGE * const pRef,
169 :     const IMAGE * const vGMC,
170 :     const int coding_type);
171 :    
172 :     void
173 :     xvid_me_ModeDecision_Fast(SearchData * const Data,
174 :     MACROBLOCK * const pMB,
175 :     const MACROBLOCK * const pMBs,
176 :     const int x, const int y,
177 :     const MBParam * const pParam,
178 :     const uint32_t MotionFlags,
179 :     const uint32_t VopFlags,
180 :     const uint32_t VolFlags,
181 :     const IMAGE * const pCurrent,
182 :     const IMAGE * const pRef,
183 :     const IMAGE * const vGMC,
184 :     const int coding_type);
185 :    
186 : syskin 1506 void
187 :     ModeDecision_BVOP_RD(SearchData * const Data_d,
188 :     SearchData * const Data_b,
189 :     SearchData * const Data_f,
190 :     SearchData * const Data_i,
191 :     MACROBLOCK * const pMB,
192 :     const MACROBLOCK * const b_mb,
193 :     VECTOR * f_predMV,
194 :     VECTOR * b_predMV,
195 :     const uint32_t MotionFlags,
196 :     const MBParam * const pParam,
197 :     int x, int y);
198 : edgomez 1382
199 : syskin 1506
200 : edgomez 1382 #endif /* _ESTIMATION_H_ */

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