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1 : chl 530 /**************************************************************************
2 :     *
3 :     * XVID MPEG-4 VIDEO CODEC
4 :     * - Motion estimation header -
5 :     *
6 :     * This program is an implementation of a part of one or more MPEG-4
7 :     * Video tools as specified in ISO/IEC 14496-2 standard. Those intending
8 :     * to use this software module in hardware or software products are
9 :     * advised that its use may infringe existing patents or copyrights, and
10 :     * any such use would be at such party's own risk. The original
11 :     * developer of this software module and his/her company, and subsequent
12 :     * editors and their companies, will have no liability for use of this
13 :     * software or modifications or derivatives thereof.
14 :     *
15 :     * This program is free software; you can redistribute it and/or modify
16 :     * it under the terms of the GNU General Public License as published by
17 :     * the Free Software Foundation; either version 2 of the License, or
18 :     * (at your option) any later version.
19 :     *
20 :     * This program is distributed in the hope that it will be useful,
21 :     * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 :     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 :     * GNU General Public License for more details.
24 :     *
25 :     * You should have received a copy of the GNU General Public License
26 :     * along with this program; if not, write to the Free Software
27 :     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 :     *
29 : syskin 628 * $Id: motion_est.h,v 1.1.2.7 2002-11-04 10:58:24 syskin Exp $
30 : chl 530 *
31 :     ***************************************************************************/
32 :    
33 :     #ifndef _MOTION_EST_H_
34 :     #define _MOTION_EST_H_
35 :    
36 :     #include "../portab.h"
37 :     #include "../global.h"
38 :    
39 :     /* hard coded motion search parameters for motion_est and smp_motion_est */
40 :    
41 :     // very large value
42 :     #define MV_MAX_ERROR (4096 * 256)
43 :    
44 :     /* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */
45 :     #define MV16_INTER_BIAS 512
46 :    
47 : syskin 628 /* vector map (vlc delta size) smoother parameters ! float !*/
48 :     #define NEIGH_TEND_16X16 10.5
49 :     #define NEIGH_TEND_8X8 4.0
50 :     #define NEIGH_8X8_BIAS 30
51 :    
52 : chl 530 /* Parameters which control inter/inter4v decision */
53 :     #define IMV16X16 2
54 :    
55 :     static const int lambda_vec16[32] =
56 :     { 0 ,(int)(1.00235 * NEIGH_TEND_16X16 + 0.5),
57 :     (int)(1.15582*NEIGH_TEND_16X16 + 0.5), (int)(1.31976*NEIGH_TEND_16X16 + 0.5),
58 :     (int)(1.49591*NEIGH_TEND_16X16 + 0.5), (int)(1.68601*NEIGH_TEND_16X16 + 0.5),
59 :     (int)(1.89187*NEIGH_TEND_16X16 + 0.5), (int)(2.11542*NEIGH_TEND_16X16 + 0.5),
60 :     (int)(2.35878*NEIGH_TEND_16X16 + 0.5), (int)(2.62429*NEIGH_TEND_16X16 + 0.5),
61 :     (int)(2.91455*NEIGH_TEND_16X16 + 0.5), (int)(3.23253*NEIGH_TEND_16X16 + 0.5),
62 :     (int)(3.58158*NEIGH_TEND_16X16 + 0.5), (int)(3.96555*NEIGH_TEND_16X16 + 0.5),
63 :     (int)(4.38887*NEIGH_TEND_16X16 + 0.5), (int)(4.85673*NEIGH_TEND_16X16 + 0.5),
64 :     (int)(5.37519*NEIGH_TEND_16X16 + 0.5), (int)(5.95144*NEIGH_TEND_16X16 + 0.5),
65 :     (int)(6.59408*NEIGH_TEND_16X16 + 0.5), (int)(7.31349*NEIGH_TEND_16X16 + 0.5),
66 :     (int)(8.12242*NEIGH_TEND_16X16 + 0.5), (int)(9.03669*NEIGH_TEND_16X16 + 0.5),
67 :     (int)(10.0763*NEIGH_TEND_16X16 + 0.5), (int)(11.2669*NEIGH_TEND_16X16 + 0.5),
68 :     (int)(12.6426*NEIGH_TEND_16X16 + 0.5), (int)(14.2493*NEIGH_TEND_16X16 + 0.5),
69 :     (int)(16.1512*NEIGH_TEND_16X16 + 0.5), (int)(18.442*NEIGH_TEND_16X16 + 0.5),
70 :     (int)(21.2656*NEIGH_TEND_16X16 + 0.5), (int)(24.8580*NEIGH_TEND_16X16 + 0.5),
71 :     (int)(29.6436*NEIGH_TEND_16X16 + 0.5), (int)(36.4949*NEIGH_TEND_16X16 + 0.5) };
72 :    
73 : Isibaar 539 static const int lambda_vec8[32] =
74 : chl 530 { 0 ,(int)(1.00235 * NEIGH_TEND_8X8 + 0.5),
75 :     (int)(1.15582 + NEIGH_TEND_8X8 + 0.5), (int)(1.31976*NEIGH_TEND_8X8 + 0.5),
76 :     (int)(1.49591*NEIGH_TEND_8X8 + 0.5), (int)(1.68601*NEIGH_TEND_8X8 + 0.5),
77 :     (int)(1.89187*NEIGH_TEND_8X8 + 0.5), (int)(2.11542*NEIGH_TEND_8X8 + 0.5),
78 :     (int)(2.35878*NEIGH_TEND_8X8 + 0.5), (int)(2.62429*NEIGH_TEND_8X8 + 0.5),
79 :     (int)(2.91455*NEIGH_TEND_8X8 + 0.5), (int)(3.23253*NEIGH_TEND_8X8 + 0.5),
80 :     (int)(3.58158*NEIGH_TEND_8X8 + 0.5), (int)(3.96555*NEIGH_TEND_8X8 + 0.5),
81 :     (int)(4.38887*NEIGH_TEND_8X8 + 0.5), (int)(4.85673*NEIGH_TEND_8X8 + 0.5),
82 :     (int)(5.37519*NEIGH_TEND_8X8 + 0.5), (int)(5.95144*NEIGH_TEND_8X8 + 0.5),
83 :     (int)(6.59408*NEIGH_TEND_8X8 + 0.5), (int)(7.31349*NEIGH_TEND_8X8 + 0.5),
84 :     (int)(8.12242*NEIGH_TEND_8X8 + 0.5), (int)(9.03669*NEIGH_TEND_8X8 + 0.5),
85 :     (int)(10.0763*NEIGH_TEND_8X8 + 0.5), (int)(11.2669*NEIGH_TEND_8X8 + 0.5),
86 :     (int)(12.6426*NEIGH_TEND_8X8 + 0.5), (int)(14.2493*NEIGH_TEND_8X8 + 0.5),
87 :     (int)(16.1512*NEIGH_TEND_8X8 + 0.5), (int)(18.442*NEIGH_TEND_8X8 + 0.5),
88 :     (int)(21.2656*NEIGH_TEND_8X8 + 0.5), (int)(24.8580*NEIGH_TEND_8X8 + 0.5),
89 :     (int)(29.6436*NEIGH_TEND_8X8 + 0.5), (int)(36.4949*NEIGH_TEND_8X8 + 0.5) };
90 :    
91 :     // mv.length table
92 :     static const uint32_t mvtab[33] = {
93 :     1, 2, 3, 4, 6, 7, 7, 7,
94 :     9, 9, 9, 10, 10, 10, 10, 10,
95 :     10, 10, 10, 10, 10, 10, 10, 10,
96 :     10, 11, 11, 11, 11, 11, 11, 12, 12
97 :     };
98 :    
99 : syskin 574 static const int DQtab[4] = {
100 :     -1, -2, 1, 2
101 :     };
102 :    
103 :    
104 : chl 530 typedef struct
105 :     {
106 :     // general fields
107 :     int max_dx, min_dx, max_dy, min_dy;
108 : Isibaar 579 uint32_t rounding;
109 : chl 530 VECTOR predMV;
110 : Isibaar 579 VECTOR predQMV;
111 : chl 530 VECTOR *currentMV;
112 : Isibaar 579 VECTOR *currentQMV;
113 : chl 530 int32_t *iMinSAD;
114 :     const uint8_t * Ref;
115 :     const uint8_t * RefH;
116 :     const uint8_t * RefV;
117 :     const uint8_t * RefHV;
118 : syskin 628 const uint8_t * RefCU;
119 :     const uint8_t * RefCV;
120 :     const uint8_t * CurU;
121 :     const uint8_t * CurV;
122 :     uint8_t * RefQ;
123 : chl 530 const uint8_t * Cur;
124 : syskin 628 uint32_t lambda16;
125 : syskin 601 uint32_t lambda8;
126 : chl 530 uint32_t iEdgedWidth;
127 :     uint32_t iFcode;
128 :     int * temp;
129 : syskin 628 int qpel;
130 :     int chroma;
131 : chl 530 //fields for interpolate and direct mode
132 :     const uint8_t *bRef;
133 :     const uint8_t *bRefH;
134 :     const uint8_t *bRefV;
135 :     const uint8_t *bRefHV;
136 :     VECTOR bpredMV;
137 :     uint32_t bFcode;
138 :     // fields for direct mode
139 :     VECTOR directmvF[4];
140 :     VECTOR directmvB[4];
141 :     const VECTOR * referencemv;
142 :     }
143 :     SearchData;
144 :    
145 :    
146 :     typedef void(CheckFunc)(const int x, const int y,
147 :     const int Direction, int * const dir,
148 :     const SearchData * const Data);
149 :    
150 :     static CheckFunc CheckCandidate16, CheckCandidate16no4v, CheckCandidateInt,
151 :     CheckCandidateDirect, CheckCandidateDirectno4v,
152 :     CheckCandidate8;
153 :     CheckFunc *CheckCandidate;
154 :    
155 :     /*
156 :     * Calculate the min/max range (in halfpixels)
157 :     * relative to the _MACROBLOCK_ position
158 :     */
159 :     static void __inline
160 :     get_range(int32_t * const min_dx,
161 :     int32_t * const max_dx,
162 :     int32_t * const min_dy,
163 :     int32_t * const max_dy,
164 :     const uint32_t x,
165 :     const uint32_t y,
166 :     const uint32_t block_sz, /* block dimension, 8 or 16 */
167 :     const uint32_t width,
168 :     const uint32_t height,
169 : Isibaar 579 const uint32_t fcode,
170 :     const uint32_t quarterpel)
171 : chl 530 {
172 :    
173 :     int k;
174 : Isibaar 579 const int search_range = 32 << (fcode - 1 - quarterpel);
175 :     const int high = search_range - 1;
176 :     const int low = -search_range;
177 : chl 530
178 :     k = 2 * (int)(width - x*block_sz);
179 :     *max_dx = MIN(high, k);
180 :     k = 2 * (int)(height - y*block_sz);
181 :     *max_dy = MIN(high, k);
182 :    
183 :     k = -2 * (int)((x+1) * block_sz);
184 : Isibaar 579 *min_dx = MAX(low, k);
185 : chl 530 k = -2 * (int)((y+1) * block_sz);
186 : Isibaar 579 *min_dy = MAX(low, k);
187 : chl 530
188 :     }
189 :    
190 :    
191 :     typedef void MainSearchFunc(int x, int y, const SearchData * const Data, int bDirection);
192 :    
193 :     static MainSearchFunc DiamondSearch, AdvDiamondSearch, SquareSearch;
194 :    
195 :     static void Search8(const SearchData * const OldData,
196 :     const int x, const int y,
197 :     const uint32_t MotionFlags,
198 :     const MBParam * const pParam,
199 :     MACROBLOCK * const pMB,
200 :     const MACROBLOCK * const pMBs,
201 : Isibaar 539 const int block,
202 :     SearchData * const Data);
203 : chl 530
204 :     bool
205 :     MotionEstimation(MBParam * const pParam,
206 :     FRAMEINFO * const current,
207 :     FRAMEINFO * const reference,
208 :     const IMAGE * const pRefH,
209 :     const IMAGE * const pRefV,
210 :     const IMAGE * const pRefHV,
211 :     const uint32_t iLimit);
212 :    
213 :     static void
214 : syskin 628 SearchP(const IMAGE * const pRef,
215 : chl 530 const uint8_t * const pRefH,
216 :     const uint8_t * const pRefV,
217 :     const uint8_t * const pRefHV,
218 :     const IMAGE * const pCur,
219 :     const int x,
220 :     const int y,
221 :     const uint32_t MotionFlags,
222 :     const uint32_t iQuant,
223 : Isibaar 539 SearchData * const Data,
224 : chl 530 const MBParam * const pParam,
225 :     const MACROBLOCK * const pMBs,
226 :     const MACROBLOCK * const prevMBs,
227 :     int inter4v,
228 :     MACROBLOCK * const pMB);
229 :    
230 :    
231 :     #ifdef _SMP
232 :     bool
233 :     SMP_MotionEstimation(MBParam * const pParam,
234 :     FRAMEINFO * const current,
235 :     FRAMEINFO * const reference,
236 :     const IMAGE * const pRefH,
237 :     const IMAGE * const pRefV,
238 :     const IMAGE * const pRefHV,
239 :     const uint32_t iLimit);
240 :     #endif
241 :    
242 :     #endif /* _MOTION_EST_H_ */

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