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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 601 * $Id: motion_est.h,v 1.1.2.6 2002-10-17 13:50:23 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 :     /* Parameters which control inter/inter4v decision */
48 :     #define IMV16X16 2
49 :    
50 :     /* vector map (vlc delta size) smoother parameters ! float !*/
51 :     #define NEIGH_TEND_16X16 4.0
52 : syskin 601 #define NEIGH_TEND_8X8 6.0
53 : chl 530
54 :     static const int lambda_vec16[32] =
55 :     { 0 ,(int)(1.00235 * NEIGH_TEND_16X16 + 0.5),
56 :     (int)(1.15582*NEIGH_TEND_16X16 + 0.5), (int)(1.31976*NEIGH_TEND_16X16 + 0.5),
57 :     (int)(1.49591*NEIGH_TEND_16X16 + 0.5), (int)(1.68601*NEIGH_TEND_16X16 + 0.5),
58 :     (int)(1.89187*NEIGH_TEND_16X16 + 0.5), (int)(2.11542*NEIGH_TEND_16X16 + 0.5),
59 :     (int)(2.35878*NEIGH_TEND_16X16 + 0.5), (int)(2.62429*NEIGH_TEND_16X16 + 0.5),
60 :     (int)(2.91455*NEIGH_TEND_16X16 + 0.5), (int)(3.23253*NEIGH_TEND_16X16 + 0.5),
61 :     (int)(3.58158*NEIGH_TEND_16X16 + 0.5), (int)(3.96555*NEIGH_TEND_16X16 + 0.5),
62 :     (int)(4.38887*NEIGH_TEND_16X16 + 0.5), (int)(4.85673*NEIGH_TEND_16X16 + 0.5),
63 :     (int)(5.37519*NEIGH_TEND_16X16 + 0.5), (int)(5.95144*NEIGH_TEND_16X16 + 0.5),
64 :     (int)(6.59408*NEIGH_TEND_16X16 + 0.5), (int)(7.31349*NEIGH_TEND_16X16 + 0.5),
65 :     (int)(8.12242*NEIGH_TEND_16X16 + 0.5), (int)(9.03669*NEIGH_TEND_16X16 + 0.5),
66 :     (int)(10.0763*NEIGH_TEND_16X16 + 0.5), (int)(11.2669*NEIGH_TEND_16X16 + 0.5),
67 :     (int)(12.6426*NEIGH_TEND_16X16 + 0.5), (int)(14.2493*NEIGH_TEND_16X16 + 0.5),
68 :     (int)(16.1512*NEIGH_TEND_16X16 + 0.5), (int)(18.442*NEIGH_TEND_16X16 + 0.5),
69 :     (int)(21.2656*NEIGH_TEND_16X16 + 0.5), (int)(24.8580*NEIGH_TEND_16X16 + 0.5),
70 :     (int)(29.6436*NEIGH_TEND_16X16 + 0.5), (int)(36.4949*NEIGH_TEND_16X16 + 0.5) };
71 :    
72 : Isibaar 539 static const int lambda_vec8[32] =
73 : chl 530 { 0 ,(int)(1.00235 * NEIGH_TEND_8X8 + 0.5),
74 :     (int)(1.15582 + NEIGH_TEND_8X8 + 0.5), (int)(1.31976*NEIGH_TEND_8X8 + 0.5),
75 :     (int)(1.49591*NEIGH_TEND_8X8 + 0.5), (int)(1.68601*NEIGH_TEND_8X8 + 0.5),
76 :     (int)(1.89187*NEIGH_TEND_8X8 + 0.5), (int)(2.11542*NEIGH_TEND_8X8 + 0.5),
77 :     (int)(2.35878*NEIGH_TEND_8X8 + 0.5), (int)(2.62429*NEIGH_TEND_8X8 + 0.5),
78 :     (int)(2.91455*NEIGH_TEND_8X8 + 0.5), (int)(3.23253*NEIGH_TEND_8X8 + 0.5),
79 :     (int)(3.58158*NEIGH_TEND_8X8 + 0.5), (int)(3.96555*NEIGH_TEND_8X8 + 0.5),
80 :     (int)(4.38887*NEIGH_TEND_8X8 + 0.5), (int)(4.85673*NEIGH_TEND_8X8 + 0.5),
81 :     (int)(5.37519*NEIGH_TEND_8X8 + 0.5), (int)(5.95144*NEIGH_TEND_8X8 + 0.5),
82 :     (int)(6.59408*NEIGH_TEND_8X8 + 0.5), (int)(7.31349*NEIGH_TEND_8X8 + 0.5),
83 :     (int)(8.12242*NEIGH_TEND_8X8 + 0.5), (int)(9.03669*NEIGH_TEND_8X8 + 0.5),
84 :     (int)(10.0763*NEIGH_TEND_8X8 + 0.5), (int)(11.2669*NEIGH_TEND_8X8 + 0.5),
85 :     (int)(12.6426*NEIGH_TEND_8X8 + 0.5), (int)(14.2493*NEIGH_TEND_8X8 + 0.5),
86 :     (int)(16.1512*NEIGH_TEND_8X8 + 0.5), (int)(18.442*NEIGH_TEND_8X8 + 0.5),
87 :     (int)(21.2656*NEIGH_TEND_8X8 + 0.5), (int)(24.8580*NEIGH_TEND_8X8 + 0.5),
88 :     (int)(29.6436*NEIGH_TEND_8X8 + 0.5), (int)(36.4949*NEIGH_TEND_8X8 + 0.5) };
89 :    
90 :     // mv.length table
91 :     static const uint32_t mvtab[33] = {
92 :     1, 2, 3, 4, 6, 7, 7, 7,
93 :     9, 9, 9, 10, 10, 10, 10, 10,
94 :     10, 10, 10, 10, 10, 10, 10, 10,
95 :     10, 11, 11, 11, 11, 11, 11, 12, 12
96 :     };
97 :    
98 : syskin 574 static const int DQtab[4] = {
99 :     -1, -2, 1, 2
100 :     };
101 :    
102 :    
103 : chl 530 typedef struct
104 :     {
105 :     // general fields
106 :     int max_dx, min_dx, max_dy, min_dy;
107 : Isibaar 579 uint32_t rounding;
108 : chl 530 VECTOR predMV;
109 : Isibaar 579 VECTOR predQMV;
110 : chl 530 VECTOR *currentMV;
111 : Isibaar 579 VECTOR *currentQMV;
112 : chl 530 int32_t *iMinSAD;
113 :     const uint8_t * Ref;
114 :     const uint8_t * RefH;
115 :     const uint8_t * RefV;
116 :     const uint8_t * RefHV;
117 : Isibaar 579 const uint8_t * RefQ;
118 : chl 530 const uint8_t * Cur;
119 : syskin 601 uint32_t lambda16; //weights of motion vectors
120 :     uint32_t lambda8;
121 : chl 530 uint32_t iEdgedWidth;
122 :     uint32_t iFcode;
123 :     int * temp;
124 :     //fields for interpolate and direct mode
125 :     const uint8_t *bRef;
126 :     const uint8_t *bRefH;
127 :     const uint8_t *bRefV;
128 :     const uint8_t *bRefHV;
129 :     VECTOR bpredMV;
130 :     uint32_t bFcode;
131 :     // fields for direct mode
132 :     VECTOR directmvF[4];
133 :     VECTOR directmvB[4];
134 :     const VECTOR * referencemv;
135 :     }
136 :     SearchData;
137 :    
138 :    
139 :     typedef void(CheckFunc)(const int x, const int y,
140 :     const int Direction, int * const dir,
141 :     const SearchData * const Data);
142 :    
143 :     static CheckFunc CheckCandidate16, CheckCandidate16no4v, CheckCandidateInt,
144 :     CheckCandidateDirect, CheckCandidateDirectno4v,
145 :     CheckCandidate8;
146 :     CheckFunc *CheckCandidate;
147 :    
148 :     /*
149 :     * Calculate the min/max range (in halfpixels)
150 :     * relative to the _MACROBLOCK_ position
151 :     */
152 :     static void __inline
153 :     get_range(int32_t * const min_dx,
154 :     int32_t * const max_dx,
155 :     int32_t * const min_dy,
156 :     int32_t * const max_dy,
157 :     const uint32_t x,
158 :     const uint32_t y,
159 :     const uint32_t block_sz, /* block dimension, 8 or 16 */
160 :     const uint32_t width,
161 :     const uint32_t height,
162 : Isibaar 579 const uint32_t fcode,
163 :     const uint32_t quarterpel)
164 : chl 530 {
165 :    
166 :     int k;
167 : Isibaar 579 const int search_range = 32 << (fcode - 1 - quarterpel);
168 :     const int high = search_range - 1;
169 :     const int low = -search_range;
170 : chl 530
171 :     k = 2 * (int)(width - x*block_sz);
172 :     *max_dx = MIN(high, k);
173 :     k = 2 * (int)(height - y*block_sz);
174 :     *max_dy = MIN(high, k);
175 :    
176 :     k = -2 * (int)((x+1) * block_sz);
177 : Isibaar 579 *min_dx = MAX(low, k);
178 : chl 530 k = -2 * (int)((y+1) * block_sz);
179 : Isibaar 579 *min_dy = MAX(low, k);
180 : chl 530
181 :     }
182 :    
183 :    
184 :     typedef void MainSearchFunc(int x, int y, const SearchData * const Data, int bDirection);
185 :    
186 :     static MainSearchFunc DiamondSearch, AdvDiamondSearch, SquareSearch;
187 :    
188 :     static void Search8(const SearchData * const OldData,
189 :     const int x, const int y,
190 :     const uint32_t MotionFlags,
191 :     const MBParam * const pParam,
192 :     MACROBLOCK * const pMB,
193 :     const MACROBLOCK * const pMBs,
194 : Isibaar 539 const int block,
195 :     SearchData * const Data);
196 : chl 530
197 :     bool
198 :     MotionEstimation(MBParam * const pParam,
199 :     FRAMEINFO * const current,
200 :     FRAMEINFO * const reference,
201 :     const IMAGE * const pRefH,
202 :     const IMAGE * const pRefV,
203 :     const IMAGE * const pRefHV,
204 :     const uint32_t iLimit);
205 :    
206 :     static void
207 :     SearchP(const uint8_t * const pRef,
208 :     const uint8_t * const pRefH,
209 :     const uint8_t * const pRefV,
210 :     const uint8_t * const pRefHV,
211 : Isibaar 579 const uint8_t * const pRefQ,
212 : chl 530 const IMAGE * const pCur,
213 :     const int x,
214 :     const int y,
215 :     const uint32_t MotionFlags,
216 :     const uint32_t iQuant,
217 : Isibaar 539 SearchData * const Data,
218 : chl 530 const MBParam * const pParam,
219 :     const MACROBLOCK * const pMBs,
220 :     const MACROBLOCK * const prevMBs,
221 :     int inter4v,
222 :     MACROBLOCK * const pMB);
223 :    
224 :    
225 :     #ifdef _SMP
226 :     bool
227 :     SMP_MotionEstimation(MBParam * const pParam,
228 :     FRAMEINFO * const current,
229 :     FRAMEINFO * const reference,
230 :     const IMAGE * const pRefH,
231 :     const IMAGE * const pRefV,
232 :     const IMAGE * const pRefHV,
233 :     const uint32_t iLimit);
234 :     #endif
235 :    
236 :     #endif /* _MOTION_EST_H_ */

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