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1 : edgomez 1142 /*****************************************************************************
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 1215 * $Id: estimation.h,v 1.1.2.5 2003-11-19 12:24:25 syskin Exp $
25 : edgomez 1142 *
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 512
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 30
47 :    
48 :     #define BITS_MULT 16
49 :    
50 :     #define INITIAL_SKIP_THRESH 10
51 :     #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 : syskin 1215 /* 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 :     VECTOR currentQMV2; /* extra vector for SubpelRefine_fast */
82 :     int32_t iMinSAD2; /* extra SAD value for SubpelRefine_fast */
83 :    
84 : edgomez 1142 /* general fields */
85 : syskin 1215 int max_dx, min_dx, max_dy, min_dy; /* maximum range */
86 :     uint32_t rounding; /* rounding type in use */
87 :     VECTOR predMV; /* vector which predicts current vector */
88 :     const uint8_t * RefP[6]; /* reference pictures - N, V, H, HV, cU, cV */
89 :     const uint8_t * Cur; /* current picture */
90 :     const uint8_t *CurU, *CurV; /* current picture - chroma planes */
91 :    
92 :     uint8_t * RefQ; /* temporary space for interpolations */
93 :     uint32_t lambda16; /* how much vector bits weight */
94 :     uint32_t lambda8; /* as above - for inter4v mode */
95 :     uint32_t iEdgedWidth; /* picture's stride */
96 :     uint32_t iFcode; /* current fcode */
97 :    
98 :     int qpel; /* if we're coding in qpel mode */
99 :     int qpel_precision; /* if X and Y are in qpel precision (refinement probably) */
100 :     int chroma; /* should we include chroma SAD? */
101 :     int rrv; /* are we using reduced resolution? */
102 : edgomez 1142
103 :     /* fields for interpolate and direct modes */
104 : syskin 1215 const uint8_t * b_RefP[6]; /* backward reference pictures - N, V, H, HV, cU, cV */
105 :     VECTOR bpredMV; /* backward prediction - used interpolate mode only */
106 :     uint32_t bFcode; /* backward fcode - used as above */
107 : edgomez 1142
108 :     /* fields for direct mode */
109 : syskin 1215 VECTOR directmvF[4]; /* scaled reference vectors */
110 :     VECTOR directmvB[4]; /* as above */
111 :     const VECTOR * referencemv; /* pointer to not-scaled reference vectors */
112 : edgomez 1142
113 :     /* BITS/R-D stuff */
114 : syskin 1215 int16_t * dctSpace; /* temporary space for dct */
115 :     uint32_t iQuant; /* current quant */
116 :     uint32_t quant_type; /* current quant type */
117 :     unsigned int cbp[2]; /* CBP of the best vector found so far + cbp for inter4v search */
118 :     const uint16_t * scan_table; /* current scan table */
119 : edgomez 1142
120 :     } SearchData;
121 :    
122 :     typedef void(CheckFunc)(const int x, const int y,
123 : syskin 1215 SearchData * const Data,
124 : edgomez 1142 const unsigned int Direction);
125 :    
126 :     CheckFunc CheckCandidate16no4v; /* shared between p-vop and b-vop search */
127 :    
128 :     uint8_t *
129 :     xvid_me_interpolate8x8qpel(const int x, const int y, const uint32_t block,
130 :     const uint32_t dir, const SearchData * const data);
131 :    
132 :     uint8_t *
133 :     xvid_me_interpolate16x16qpel(const int x, const int y, const uint32_t dir,
134 :     const SearchData * const data);
135 :    
136 :     int32_t
137 : syskin 1215 xvid_me_ChromaSAD(const int dx, const int dy, SearchData * const data);
138 : edgomez 1142
139 :     int
140 :     xvid_me_SkipDecisionP(const IMAGE * current, const IMAGE * reference,
141 :     const int x, const int y,
142 :     const uint32_t stride, const uint32_t iQuant, int rrv);
143 :    
144 :     #define iDiamondSize 2
145 :     typedef void
146 : syskin 1215 MainSearchFunc(int x, int y, SearchData * const Data,
147 : edgomez 1142 int bDirection, CheckFunc * const CheckCandidate);
148 :    
149 :     MainSearchFunc xvid_me_DiamondSearch, xvid_me_AdvDiamondSearch, xvid_me_SquareSearch;
150 :    
151 :     void
152 : syskin 1215 xvid_me_SubpelRefine(SearchData * const data, CheckFunc * const CheckCandidate);
153 : edgomez 1142
154 :     void
155 :     xvid_me_ModeDecision_RD(SearchData * const Data,
156 :     MACROBLOCK * const pMB,
157 :     const MACROBLOCK * const pMBs,
158 :     const int x, const int y,
159 :     const MBParam * const pParam,
160 :     const uint32_t MotionFlags,
161 :     const uint32_t VopFlags,
162 :     const uint32_t VolFlags,
163 :     const IMAGE * const pCurrent,
164 :     const IMAGE * const pRef,
165 :     const IMAGE * const vGMC,
166 :     const int coding_type);
167 :    
168 :     void
169 :     xvid_me_ModeDecision_Fast(SearchData * const Data,
170 :     MACROBLOCK * const pMB,
171 :     const MACROBLOCK * const pMBs,
172 :     const int x, const int y,
173 :     const MBParam * const pParam,
174 :     const uint32_t MotionFlags,
175 :     const uint32_t VopFlags,
176 :     const uint32_t VolFlags,
177 :     const IMAGE * const pCurrent,
178 :     const IMAGE * const pRef,
179 :     const IMAGE * const vGMC,
180 :     const int coding_type);
181 :    
182 :    
183 :     #endif /* _ESTIMATION_H_ */

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