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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 978 * $Id: motion_est.h,v 1.3.2.5 2003-04-08 15:35:52 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 : edgomez 978 const uint8_t * RefP[6]; // N, V, H, HV, cU, cV
118 : edgomez 851 const uint8_t * CurU;
119 :     const uint8_t * CurV;
120 :     uint8_t * RefQ;
121 :     const uint8_t * Cur;
122 :     uint32_t lambda16;
123 :     uint32_t lambda8;
124 :     uint32_t iEdgedWidth;
125 :     uint32_t iFcode;
126 :     int * temp;
127 :     int qpel, qpel_precision;
128 :     int chroma;
129 :     int rrv;
130 :     //fields for interpolate and direct modes
131 : edgomez 978 const uint8_t * b_RefP[6]; // N, V, H, HV, cU, cV
132 : edgomez 851 VECTOR bpredMV;
133 :     uint32_t bFcode;
134 :     // fields for direct mode
135 :     VECTOR directmvF[4];
136 :     VECTOR directmvB[4];
137 :     const VECTOR * referencemv;
138 : edgomez 959 // _BITS stuff
139 :     int16_t * dctSpace;
140 : edgomez 851
141 :     } SearchData;
142 :    
143 :    
144 :     typedef void(CheckFunc)(const int x, const int y,
145 :     const int Direction, int * const dir,
146 :     const SearchData * const Data);
147 :     CheckFunc *CheckCandidate;
148 :    
149 :     /*
150 :     * Calculate the min/max range
151 :     * relative to the _MACROBLOCK_ position
152 :     */
153 :     static void __inline
154 :     get_range(int32_t * const min_dx,
155 :     int32_t * const max_dx,
156 :     int32_t * const min_dy,
157 :     int32_t * const max_dy,
158 :     const uint32_t x,
159 :     const uint32_t y,
160 :     uint32_t block_sz, /* block dimension, 8 or 16 */
161 :     const uint32_t width,
162 :     const uint32_t height,
163 :     const uint32_t fcode,
164 :     const int qpel, /* 1 if the resulting range should be in qpel precision; otherwise 0 */
165 :     const int rrv)
166 :     {
167 :     int k, m = qpel ? 4 : 2;
168 :     const int search_range = 32 << (fcode - 1);
169 :     int high = search_range - 1;
170 :     int low = -search_range;
171 :    
172 :     if (rrv) {
173 :     high = RRV_MV_SCALEUP(high);
174 :     low = RRV_MV_SCALEUP(low);
175 :     block_sz *= 2;
176 :     }
177 :    
178 :     k = m * (int)(width - x * block_sz);
179 :     *max_dx = MIN(high, k);
180 :     k = m * (int)(height - y * block_sz);
181 :     *max_dy = MIN(high, k);
182 :    
183 :     k = -m * (int)((x+1) * block_sz);
184 :     *min_dx = MAX(low, k);
185 :     k = -m * (int)((y+1) * block_sz);
186 :     *min_dy = MAX(low, k);
187 :     }
188 :    
189 :     typedef void MainSearchFunc(int x, int y, const SearchData * const Data, int bDirection);
190 :    
191 :     static MainSearchFunc DiamondSearch, AdvDiamondSearch, SquareSearch;
192 :    
193 :     static void Search8(const SearchData * const OldData,
194 :     const int x, const int y,
195 :     const uint32_t MotionFlags,
196 :     const MBParam * const pParam,
197 :     MACROBLOCK * const pMB,
198 :     const MACROBLOCK * const pMBs,
199 :     const int block,
200 :     SearchData * const Data);
201 :    
202 :     bool
203 :     MotionEstimation(MBParam * const pParam,
204 : syskin 884 FRAMEINFO * const current,
205 :     FRAMEINFO * const reference,
206 :     const IMAGE * const pRefH,
207 :     const IMAGE * const pRefV,
208 :     const IMAGE * const pRefHV,
209 :     const uint32_t iLimit);
210 : edgomez 851
211 :     static void
212 :     SearchP(const IMAGE * const pRef,
213 :     const uint8_t * const pRefH,
214 :     const uint8_t * const pRefV,
215 :     const uint8_t * const pRefHV,
216 :     const IMAGE * const pCur,
217 :     const int x,
218 :     const int y,
219 :     const uint32_t MotionFlags,
220 :     const uint32_t GlobalFlags,
221 :     const uint32_t iQuant,
222 :     SearchData * const Data,
223 :     const MBParam * const pParam,
224 :     const MACROBLOCK * const pMBs,
225 :     const MACROBLOCK * const prevMBs,
226 :     int inter4v,
227 :     MACROBLOCK * const pMB);
228 :    
229 :    
230 :     static WARPPOINTS
231 :     GlobalMotionEst(const MACROBLOCK * const pMBs,
232 :     const MBParam * const pParam,
233 :     const FRAMEINFO * const current,
234 :     const FRAMEINFO * const reference,
235 :     const IMAGE * const pRefH,
236 :     const IMAGE * const pRefV,
237 :     const IMAGE * const pRefHV );
238 :    
239 :     #define iDiamondSize 2
240 :    
241 :     static __inline uint32_t
242 : suxen_drol 890 MakeGoodMotionFlags(const uint32_t MotionFlags, const uint32_t VopFlags, const uint32_t VolFlags)
243 : edgomez 851 {
244 :     uint32_t Flags = MotionFlags;
245 :    
246 : edgomez 949 if (!(VopFlags & XVID_VOP_MODEDECISION_BITS))
247 :     Flags &= ~(XVID_ME_QUARTERPELREFINE16_BITS+XVID_ME_QUARTERPELREFINE8_BITS+XVID_ME_HALFPELREFINE16_BITS+XVID_ME_HALFPELREFINE8_BITS+XVID_ME_EXTSEARCH_BITS);
248 : edgomez 851
249 : edgomez 949 if (Flags & XVID_ME_EXTSEARCH_BITS)
250 :     Flags |= XVID_ME_HALFPELREFINE16_BITS;
251 : edgomez 851
252 : edgomez 949 if (Flags & XVID_ME_EXTSEARCH_BITS && MotionFlags & XVID_ME_EXTSEARCH8)
253 :     Flags |= XVID_ME_HALFPELREFINE8_BITS;
254 : edgomez 851
255 : edgomez 949 if (Flags & XVID_ME_HALFPELREFINE16_BITS)
256 :     Flags |= XVID_ME_QUARTERPELREFINE16_BITS;
257 : edgomez 851
258 : edgomez 949 if (Flags & XVID_ME_HALFPELREFINE8_BITS) {
259 :     Flags |= XVID_ME_QUARTERPELREFINE8_BITS;
260 :     Flags &= ~XVID_ME_HALFPELREFINE8;
261 : edgomez 851 }
262 :    
263 : edgomez 949 if (Flags & XVID_ME_QUARTERPELREFINE8_BITS)
264 :     Flags &= ~XVID_ME_QUARTERPELREFINE8;
265 : edgomez 851
266 : edgomez 949 if (!(VolFlags & XVID_VOL_QUARTERPEL))
267 :     Flags &= ~(XVID_ME_QUARTERPELREFINE16+XVID_ME_QUARTERPELREFINE8+XVID_ME_QUARTERPELREFINE16_BITS+XVID_ME_QUARTERPELREFINE8_BITS);
268 : edgomez 851
269 : edgomez 949 if (!(VopFlags & XVID_VOP_HALFPEL))
270 :     Flags &= ~(XVID_ME_EXTSEARCH16+XVID_ME_HALFPELREFINE16+XVID_ME_HALFPELREFINE8+XVID_ME_HALFPELREFINE16_BITS+XVID_ME_HALFPELREFINE8_BITS);
271 : edgomez 851
272 : edgomez 949 if ((VopFlags & XVID_VOP_GREYSCALE) || (VopFlags & XVID_VOP_REDUCED))
273 :     Flags &= ~(XVID_ME_CHROMA16 + XVID_ME_CHROMA8);
274 : edgomez 851
275 :     return Flags;
276 :     }
277 :    
278 :     /* BITS mode decision and search */
279 :    
280 :     #include "../bitstream/zigzag.h"
281 :     #include "../quant/quant_mpeg4.h"
282 :     #include "../quant/quant_h263.h"
283 :     #include "../bitstream/vlc_codes.h"
284 :    
285 :     static int
286 :     CountMBBitsInter(SearchData * const Data,
287 :     const MACROBLOCK * const pMBs, const int x, const int y,
288 :     const MBParam * const pParam,
289 :     const uint32_t MotionFlags);
290 :    
291 :     static int
292 :     CountMBBitsInter4v(const SearchData * const Data,
293 :     MACROBLOCK * const pMB, const MACROBLOCK * const pMBs,
294 :     const int x, const int y,
295 :     const MBParam * const pParam, const uint32_t MotionFlags,
296 :     const VECTOR * const backup);
297 :    
298 :     static int
299 :     CountMBBitsIntra(const SearchData * const Data);
300 :    
301 :     int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
302 :     int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
303 :    
304 :     #endif /* _MOTION_EST_H_ */

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