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1 : edgomez 851 /**************************************************************************
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 : edgomez 974 * $Id: motion_est.h,v 1.3.2.4 2003-04-05 16:47:44 edgomez Exp $
30 : edgomez 851 *
31 :     ***************************************************************************/
32 :    
33 :     #ifndef _MOTION_EST_H_
34 :     #define _MOTION_EST_H_
35 :    
36 :     #include "../portab.h"
37 :     #include "../global.h"
38 :     #include "../image/reduced.h"
39 :    
40 :     /* hard coded motion search parameters for motion_est and smp_motion_est */
41 :    
42 :     // very large value
43 :     #define MV_MAX_ERROR (4096 * 256)
44 :    
45 :     /* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */
46 :     #define MV16_INTER_BIAS 512
47 :    
48 :     /* vector map (vlc delta size) smoother parameters ! float !*/
49 :     #define NEIGH_TEND_16X16 10.5
50 :     #define NEIGH_TEND_8X8 40.0
51 :     #define NEIGH_8X8_BIAS 30
52 :    
53 :     /* Parameters which control inter/inter4v decision */
54 :     #define IMV16X16 2
55 :    
56 :     static const int lambda_vec16[32] =
57 :     { 0 ,(int)(1.00235 * NEIGH_TEND_16X16 + 0.5),
58 :     (int)(1.15582*NEIGH_TEND_16X16 + 0.5), (int)(1.31976*NEIGH_TEND_16X16 + 0.5),
59 :     (int)(1.49591*NEIGH_TEND_16X16 + 0.5), (int)(1.68601*NEIGH_TEND_16X16 + 0.5),
60 :     (int)(1.89187*NEIGH_TEND_16X16 + 0.5), (int)(2.11542*NEIGH_TEND_16X16 + 0.5),
61 :     (int)(2.35878*NEIGH_TEND_16X16 + 0.5), (int)(2.62429*NEIGH_TEND_16X16 + 0.5),
62 :     (int)(2.91455*NEIGH_TEND_16X16 + 0.5), (int)(3.23253*NEIGH_TEND_16X16 + 0.5),
63 :     (int)(3.58158*NEIGH_TEND_16X16 + 0.5), (int)(3.96555*NEIGH_TEND_16X16 + 0.5),
64 :     (int)(4.38887*NEIGH_TEND_16X16 + 0.5), (int)(4.85673*NEIGH_TEND_16X16 + 0.5),
65 :     (int)(5.37519*NEIGH_TEND_16X16 + 0.5), (int)(5.95144*NEIGH_TEND_16X16 + 0.5),
66 :     (int)(6.59408*NEIGH_TEND_16X16 + 0.5), (int)(7.31349*NEIGH_TEND_16X16 + 0.5),
67 :     (int)(8.12242*NEIGH_TEND_16X16 + 0.5), (int)(9.03669*NEIGH_TEND_16X16 + 0.5),
68 :     (int)(10.0763*NEIGH_TEND_16X16 + 0.5), (int)(11.2669*NEIGH_TEND_16X16 + 0.5),
69 :     (int)(12.6426*NEIGH_TEND_16X16 + 0.5), (int)(14.2493*NEIGH_TEND_16X16 + 0.5),
70 :     (int)(16.1512*NEIGH_TEND_16X16 + 0.5), (int)(18.442*NEIGH_TEND_16X16 + 0.5),
71 :     (int)(21.2656*NEIGH_TEND_16X16 + 0.5), (int)(24.8580*NEIGH_TEND_16X16 + 0.5),
72 :     (int)(29.6436*NEIGH_TEND_16X16 + 0.5), (int)(36.4949*NEIGH_TEND_16X16 + 0.5) };
73 :    
74 :     static const int lambda_vec8[32] =
75 :     { 0 ,(int)(1.00235 * NEIGH_TEND_8X8 + 0.5),
76 :     (int)(1.15582 + NEIGH_TEND_8X8 + 0.5), (int)(1.31976*NEIGH_TEND_8X8 + 0.5),
77 :     (int)(1.49591*NEIGH_TEND_8X8 + 0.5), (int)(1.68601*NEIGH_TEND_8X8 + 0.5),
78 :     (int)(1.89187*NEIGH_TEND_8X8 + 0.5), (int)(2.11542*NEIGH_TEND_8X8 + 0.5),
79 :     (int)(2.35878*NEIGH_TEND_8X8 + 0.5), (int)(2.62429*NEIGH_TEND_8X8 + 0.5),
80 :     (int)(2.91455*NEIGH_TEND_8X8 + 0.5), (int)(3.23253*NEIGH_TEND_8X8 + 0.5),
81 :     (int)(3.58158*NEIGH_TEND_8X8 + 0.5), (int)(3.96555*NEIGH_TEND_8X8 + 0.5),
82 :     (int)(4.38887*NEIGH_TEND_8X8 + 0.5), (int)(4.85673*NEIGH_TEND_8X8 + 0.5),
83 :     (int)(5.37519*NEIGH_TEND_8X8 + 0.5), (int)(5.95144*NEIGH_TEND_8X8 + 0.5),
84 :     (int)(6.59408*NEIGH_TEND_8X8 + 0.5), (int)(7.31349*NEIGH_TEND_8X8 + 0.5),
85 :     (int)(8.12242*NEIGH_TEND_8X8 + 0.5), (int)(9.03669*NEIGH_TEND_8X8 + 0.5),
86 :     (int)(10.0763*NEIGH_TEND_8X8 + 0.5), (int)(11.2669*NEIGH_TEND_8X8 + 0.5),
87 :     (int)(12.6426*NEIGH_TEND_8X8 + 0.5), (int)(14.2493*NEIGH_TEND_8X8 + 0.5),
88 :     (int)(16.1512*NEIGH_TEND_8X8 + 0.5), (int)(18.442*NEIGH_TEND_8X8 + 0.5),
89 :     (int)(21.2656*NEIGH_TEND_8X8 + 0.5), (int)(24.8580*NEIGH_TEND_8X8 + 0.5),
90 :     (int)(29.6436*NEIGH_TEND_8X8 + 0.5), (int)(36.4949*NEIGH_TEND_8X8 + 0.5) };
91 :    
92 :     // mv.length table
93 : edgomez 974 static const int mvtab[64] = {
94 :     1, 2, 3, 4, 6, 7, 7, 7,
95 :     9, 9, 9, 10, 10, 10, 10, 10,
96 :     10, 10, 10, 10, 10, 10, 10, 10,
97 :     10, 11, 11, 11, 11, 11, 11, 12,
98 :     12, 12, 12, 12, 12, 12, 12, 12,
99 :     12, 12, 12, 12, 12, 12, 12, 12,
100 :     12, 12, 12, 12, 12, 12, 12, 12, 12 };
101 : edgomez 851
102 :     static const int DQtab[4] = {
103 :     -1, -2, 1, 2
104 :     };
105 :    
106 :     #define RRV_MV_SCALEDOWN(a) ( (a)>=0 ? (a+1)/2 : (a-1)/2 )
107 :    
108 :     typedef struct
109 :     {
110 :     // general fields
111 :     int max_dx, min_dx, max_dy, min_dy;
112 :     uint32_t rounding;
113 :     VECTOR predMV;
114 :     VECTOR * currentMV;
115 :     VECTOR * currentQMV;
116 :     int32_t * iMinSAD;
117 :     const uint8_t * Ref;
118 :     const uint8_t * RefH;
119 :     const uint8_t * RefV;
120 :     const uint8_t * RefHV;
121 :     const uint8_t * RefCU;
122 :     const uint8_t * RefCV;
123 :     const uint8_t * CurU;
124 :     const uint8_t * CurV;
125 :     uint8_t * RefQ;
126 :     const uint8_t * Cur;
127 :     uint32_t lambda16;
128 :     uint32_t lambda8;
129 :     uint32_t iEdgedWidth;
130 :     uint32_t iFcode;
131 :     int * temp;
132 :     int qpel, qpel_precision;
133 :     int chroma;
134 :     int rrv;
135 :     //fields for interpolate and direct modes
136 :     const uint8_t * bRef;
137 :     const uint8_t * bRefH;
138 :     const uint8_t * bRefV;
139 :     const uint8_t * bRefHV;
140 :     const uint8_t * b_RefCU;
141 :     const uint8_t * b_RefCV;
142 :    
143 :     VECTOR bpredMV;
144 :     uint32_t bFcode;
145 :     // fields for direct mode
146 :     VECTOR directmvF[4];
147 :     VECTOR directmvB[4];
148 :     const VECTOR * referencemv;
149 : edgomez 959 // _BITS stuff
150 :     int16_t * dctSpace;
151 : edgomez 851
152 :     } SearchData;
153 :    
154 :    
155 :     typedef void(CheckFunc)(const int x, const int y,
156 :     const int Direction, int * const dir,
157 :     const SearchData * const Data);
158 :     CheckFunc *CheckCandidate;
159 :    
160 :     /*
161 :     * Calculate the min/max range
162 :     * relative to the _MACROBLOCK_ position
163 :     */
164 :     static void __inline
165 :     get_range(int32_t * const min_dx,
166 :     int32_t * const max_dx,
167 :     int32_t * const min_dy,
168 :     int32_t * const max_dy,
169 :     const uint32_t x,
170 :     const uint32_t y,
171 :     uint32_t block_sz, /* block dimension, 8 or 16 */
172 :     const uint32_t width,
173 :     const uint32_t height,
174 :     const uint32_t fcode,
175 :     const int qpel, /* 1 if the resulting range should be in qpel precision; otherwise 0 */
176 :     const int rrv)
177 :     {
178 :     int k, m = qpel ? 4 : 2;
179 :     const int search_range = 32 << (fcode - 1);
180 :     int high = search_range - 1;
181 :     int low = -search_range;
182 :    
183 :     if (rrv) {
184 :     high = RRV_MV_SCALEUP(high);
185 :     low = RRV_MV_SCALEUP(low);
186 :     block_sz *= 2;
187 :     }
188 :    
189 :     k = m * (int)(width - x * block_sz);
190 :     *max_dx = MIN(high, k);
191 :     k = m * (int)(height - y * block_sz);
192 :     *max_dy = MIN(high, k);
193 :    
194 :     k = -m * (int)((x+1) * block_sz);
195 :     *min_dx = MAX(low, k);
196 :     k = -m * (int)((y+1) * block_sz);
197 :     *min_dy = MAX(low, k);
198 :     }
199 :    
200 :     typedef void MainSearchFunc(int x, int y, const SearchData * const Data, int bDirection);
201 :    
202 :     static MainSearchFunc DiamondSearch, AdvDiamondSearch, SquareSearch;
203 :    
204 :     static void Search8(const SearchData * const OldData,
205 :     const int x, const int y,
206 :     const uint32_t MotionFlags,
207 :     const MBParam * const pParam,
208 :     MACROBLOCK * const pMB,
209 :     const MACROBLOCK * const pMBs,
210 :     const int block,
211 :     SearchData * const Data);
212 :    
213 :     bool
214 :     MotionEstimation(MBParam * const pParam,
215 : syskin 884 FRAMEINFO * const current,
216 :     FRAMEINFO * const reference,
217 :     const IMAGE * const pRefH,
218 :     const IMAGE * const pRefV,
219 :     const IMAGE * const pRefHV,
220 :     const uint32_t iLimit);
221 : edgomez 851
222 :     static void
223 :     SearchP(const IMAGE * const pRef,
224 :     const uint8_t * const pRefH,
225 :     const uint8_t * const pRefV,
226 :     const uint8_t * const pRefHV,
227 :     const IMAGE * const pCur,
228 :     const int x,
229 :     const int y,
230 :     const uint32_t MotionFlags,
231 :     const uint32_t GlobalFlags,
232 :     const uint32_t iQuant,
233 :     SearchData * const Data,
234 :     const MBParam * const pParam,
235 :     const MACROBLOCK * const pMBs,
236 :     const MACROBLOCK * const prevMBs,
237 :     int inter4v,
238 :     MACROBLOCK * const pMB);
239 :    
240 :    
241 :     static WARPPOINTS
242 :     GlobalMotionEst(const MACROBLOCK * const pMBs,
243 :     const MBParam * const pParam,
244 :     const FRAMEINFO * const current,
245 :     const FRAMEINFO * const reference,
246 :     const IMAGE * const pRefH,
247 :     const IMAGE * const pRefV,
248 :     const IMAGE * const pRefHV );
249 :    
250 :     #define iDiamondSize 2
251 :    
252 :     static __inline uint32_t
253 : suxen_drol 890 MakeGoodMotionFlags(const uint32_t MotionFlags, const uint32_t VopFlags, const uint32_t VolFlags)
254 : edgomez 851 {
255 :     uint32_t Flags = MotionFlags;
256 :    
257 : edgomez 949 if (!(VopFlags & XVID_VOP_MODEDECISION_BITS))
258 :     Flags &= ~(XVID_ME_QUARTERPELREFINE16_BITS+XVID_ME_QUARTERPELREFINE8_BITS+XVID_ME_HALFPELREFINE16_BITS+XVID_ME_HALFPELREFINE8_BITS+XVID_ME_EXTSEARCH_BITS);
259 : edgomez 851
260 : edgomez 949 if (Flags & XVID_ME_EXTSEARCH_BITS)
261 :     Flags |= XVID_ME_HALFPELREFINE16_BITS;
262 : edgomez 851
263 : edgomez 949 if (Flags & XVID_ME_EXTSEARCH_BITS && MotionFlags & XVID_ME_EXTSEARCH8)
264 :     Flags |= XVID_ME_HALFPELREFINE8_BITS;
265 : edgomez 851
266 : edgomez 949 if (Flags & XVID_ME_HALFPELREFINE16_BITS)
267 :     Flags |= XVID_ME_QUARTERPELREFINE16_BITS;
268 : edgomez 851
269 : edgomez 949 if (Flags & XVID_ME_HALFPELREFINE8_BITS) {
270 :     Flags |= XVID_ME_QUARTERPELREFINE8_BITS;
271 :     Flags &= ~XVID_ME_HALFPELREFINE8;
272 : edgomez 851 }
273 :    
274 : edgomez 949 if (Flags & XVID_ME_QUARTERPELREFINE8_BITS)
275 :     Flags &= ~XVID_ME_QUARTERPELREFINE8;
276 : edgomez 851
277 : edgomez 949 if (!(VolFlags & XVID_VOL_QUARTERPEL))
278 :     Flags &= ~(XVID_ME_QUARTERPELREFINE16+XVID_ME_QUARTERPELREFINE8+XVID_ME_QUARTERPELREFINE16_BITS+XVID_ME_QUARTERPELREFINE8_BITS);
279 : edgomez 851
280 : edgomez 949 if (!(VopFlags & XVID_VOP_HALFPEL))
281 :     Flags &= ~(XVID_ME_EXTSEARCH16+XVID_ME_HALFPELREFINE16+XVID_ME_HALFPELREFINE8+XVID_ME_HALFPELREFINE16_BITS+XVID_ME_HALFPELREFINE8_BITS);
282 : edgomez 851
283 : edgomez 949 if ((VopFlags & XVID_VOP_GREYSCALE) || (VopFlags & XVID_VOP_REDUCED))
284 :     Flags &= ~(XVID_ME_CHROMA16 + XVID_ME_CHROMA8);
285 : edgomez 851
286 :     return Flags;
287 :     }
288 :    
289 :     /* BITS mode decision and search */
290 :    
291 :     #include "../bitstream/zigzag.h"
292 :     #include "../quant/quant_mpeg4.h"
293 :     #include "../quant/quant_h263.h"
294 :     #include "../bitstream/vlc_codes.h"
295 :    
296 :     static int
297 :     CountMBBitsInter(SearchData * const Data,
298 :     const MACROBLOCK * const pMBs, const int x, const int y,
299 :     const MBParam * const pParam,
300 :     const uint32_t MotionFlags);
301 :    
302 :     static int
303 :     CountMBBitsInter4v(const SearchData * const Data,
304 :     MACROBLOCK * const pMB, const MACROBLOCK * const pMBs,
305 :     const int x, const int y,
306 :     const MBParam * const pParam, const uint32_t MotionFlags,
307 :     const VECTOR * const backup);
308 :    
309 :     static int
310 :     CountMBBitsIntra(const SearchData * const Data);
311 :    
312 :     int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
313 :     int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
314 :    
315 :     #endif /* _MOTION_EST_H_ */

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