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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 : Isibaar 1909 * 2002-2010 Michael Militzer <michael@xvid.org>
8 : edgomez 1382 * 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 : Isibaar 1988 * $Id$
25 : edgomez 1382 *
26 :     ****************************************************************************/
27 :    
28 :     #ifndef _ESTIMATION_H_
29 :     #define _ESTIMATION_H_
30 :    
31 :     #include "../portab.h"
32 :     #include "../global.h"
33 : Isibaar 1909 #include "sad.h"
34 : edgomez 1382
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 : Isibaar 1604 #define NEIGH_TEND_16X16 0.6
45 : syskin 1659 #define NEIGH_TEND_8X8 1.5
46 :    
47 : edgomez 1382 #define NEIGH_8X8_BIAS 40
48 :    
49 :     #define BITS_MULT 16
50 :    
51 : syskin 1443 #define INITIAL_SKIP_THRESH 6
52 : edgomez 1382 #define FINAL_SKIP_THRESH 50
53 :     #define MAX_SAD00_FOR_SKIP 20
54 :     #define MAX_CHROMA_SAD_FOR_SKIP 22
55 :    
56 :     /* Parameters which control inter/inter4v decision */
57 :     #define IMV16X16 2
58 :    
59 :     extern const int xvid_me_lambda_vec16[32];
60 :    
61 :     #define CHECK_CANDIDATE(X,Y,D) { \
62 :     CheckCandidate((X),(Y), data, (D) ); }
63 :    
64 :     /* fast ((A)/2)*2 */
65 :     #define EVEN(A) (((A)<0?(A)+1:(A)) & ~1)
66 :    
67 :     #define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) )
68 :    
69 :     static const VECTOR zeroMV = { 0, 0 };
70 :    
71 :     typedef struct
72 :     {
73 : syskin 1567 int max_dx, min_dx, max_dy, min_dy; /* maximum search range */
74 :    
75 : edgomez 1382 /* data modified by CheckCandidates */
76 :     int32_t iMinSAD[5]; /* smallest SADs found so far */
77 :     VECTOR currentMV[5]; /* best vectors found so far */
78 :     VECTOR currentQMV[5]; /* as above, but used during qpel search */
79 :     int temp[4]; /* temporary space */
80 :     unsigned int dir; /* 'direction', set when better vector is found */
81 :     int chromaX, chromaY, chromaSAD; /* info to make ChromaSAD faster */
82 :    
83 :     /* general fields */
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 :    
100 :     /* fields for interpolate and direct modes */
101 :     const uint8_t * b_RefP[6]; /* backward reference pictures - N, V, H, HV, cU, cV */
102 : syskin 1564 VECTOR bpredMV; /* backward prediction - used in Interpolate-mode search only */
103 :     uint32_t bFcode; /* backward fcode - used in Interpolate-mode search only */
104 : syskin 1443 int b_chromaX, b_chromaY;
105 : edgomez 1382
106 :     /* fields for direct mode */
107 :     VECTOR directmvF[4]; /* scaled reference vectors */
108 : syskin 1564 VECTOR directmvB[4];
109 : edgomez 1382 const VECTOR * referencemv; /* pointer to not-scaled reference vectors */
110 :    
111 :     /* BITS/R-D stuff */
112 :     int16_t * dctSpace; /* temporary space for dct */
113 :     uint32_t iQuant; /* current quant */
114 :     uint32_t quant_type; /* current quant type */
115 : syskin 1506 unsigned int cbp[2]; /* CBP of the best vector found so far + cbp for inter4v search */
116 : edgomez 1382 const uint16_t * scan_table; /* current scan table */
117 :     const uint16_t * mpeg_quant_matrices; /* current MPEG quantization matrices */
118 : syskin 1506 int lambda[6]; /* R-D lambdas for all 6 blocks */
119 : syskin 1569 unsigned int quant_sq; /* quant squared - saves many multiplications in VHQ */
120 : Isibaar 1909 uint32_t rel_var8[6]; /* relative variances for all 6 sub-blocks */
121 :     int metric; /* distortion metric for R-D optimizations, currently: PSNR=0, PSNRHVSM=1 */
122 : edgomez 1382 } SearchData;
123 :    
124 : Isibaar 1909 static __inline uint32_t
125 :     masked_sseh8_16bit(int16_t * const orig,
126 :     int16_t * const rec,
127 :     const uint32_t rel_var8)
128 :     {
129 :     uint16_t mask = ((isqrt(2*coeff8_energy(orig)*rel_var8) + 48) >> 6);
130 :     return (5*sseh8_16bit(orig, rec, (uint16_t) mask)) >> 7;
131 :     }
132 :    
133 : edgomez 1382 typedef void(CheckFunc)(const int x, const int y,
134 :     SearchData * const Data,
135 :     const unsigned int Direction);
136 :    
137 :     CheckFunc CheckCandidate16no4v; /* shared between p-vop and b-vop search */
138 :    
139 :     uint8_t *
140 :     xvid_me_interpolate8x8qpel(const int x, const int y, const uint32_t block,
141 :     const uint32_t dir, const SearchData * const data);
142 :    
143 :     uint8_t *
144 :     xvid_me_interpolate16x16qpel(const int x, const int y, const uint32_t dir,
145 :     const SearchData * const data);
146 :    
147 :     int32_t
148 :     xvid_me_ChromaSAD(const int dx, const int dy, SearchData * const data);
149 :    
150 :     int
151 :     xvid_me_SkipDecisionP(const IMAGE * current, const IMAGE * reference,
152 :     const int x, const int y,
153 : syskin 1564 const uint32_t stride, const uint32_t iQuant);
154 : edgomez 1382
155 :     #define iDiamondSize 2
156 :     typedef void
157 :     MainSearchFunc(int x, int y, SearchData * const Data,
158 :     int bDirection, CheckFunc * const CheckCandidate);
159 :    
160 :     MainSearchFunc xvid_me_DiamondSearch, xvid_me_AdvDiamondSearch, xvid_me_SquareSearch;
161 :    
162 :     void
163 : syskin 1478 xvid_me_SubpelRefine(VECTOR centerMV, SearchData * const data, CheckFunc * const CheckCandidate, int dir);
164 : edgomez 1382
165 : syskin 1441 void
166 :     FullRefine_Fast(SearchData * data, CheckFunc * CheckCandidate, int direction);
167 : edgomez 1382
168 :     void
169 :     xvid_me_ModeDecision_RD(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 : Isibaar 1913 const int coding_type,
181 :     const int bound);
182 : edgomez 1382
183 :     void
184 :     xvid_me_ModeDecision_Fast(SearchData * const Data,
185 :     MACROBLOCK * const pMB,
186 :     const MACROBLOCK * const pMBs,
187 :     const int x, const int y,
188 :     const MBParam * const pParam,
189 :     const uint32_t MotionFlags,
190 :     const uint32_t VopFlags,
191 :     const uint32_t VolFlags,
192 :     const IMAGE * const pCurrent,
193 :     const IMAGE * const pRef,
194 :     const IMAGE * const vGMC,
195 : Isibaar 1913 const int coding_type,
196 :     const int bound);
197 : edgomez 1382
198 : syskin 1506 void
199 :     ModeDecision_BVOP_RD(SearchData * const Data_d,
200 :     SearchData * const Data_b,
201 :     SearchData * const Data_f,
202 :     SearchData * const Data_i,
203 :     MACROBLOCK * const pMB,
204 :     const MACROBLOCK * const b_mb,
205 :     VECTOR * f_predMV,
206 :     VECTOR * b_predMV,
207 :     const uint32_t MotionFlags,
208 : Isibaar 1909 const uint32_t VopFlags,
209 : syskin 1506 const MBParam * const pParam,
210 : syskin 1577 int x, int y,
211 : Isibaar 1919 int best_sad,
212 :     int force_direct);
213 : edgomez 1382
214 : syskin 1567 unsigned int
215 :     getMinFcode(const int MVmax);
216 : syskin 1506
217 : edgomez 1382 #endif /* _ESTIMATION_H_ */

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