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revision 1.1, Mon Sep 23 20:36:02 2002 UTC revision 1.1.2.1, Mon Sep 23 20:36:02 2002 UTC
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1    /**************************************************************************
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     *  $Id$
30     *
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    #define NEIGH_TEND_8X8          7.0
53    
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    static const int lambda_vec8[32] =
73            {     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    typedef struct
99            {
100    // general fields
101                    int max_dx, min_dx, max_dy, min_dy;
102                    VECTOR predMV;
103                    VECTOR *currentMV;
104                    int32_t *iMinSAD;
105                    const uint8_t * Ref;
106                    const uint8_t * RefH;
107                    const uint8_t * RefV;
108                    const uint8_t * RefHV;
109                    const uint8_t * Cur;
110                    uint32_t iQuant;
111                    uint32_t iEdgedWidth;
112                    uint32_t iFcode;
113                    int * temp;
114    //fields for interpolate and direct mode
115                    const uint8_t *bRef;
116                    const uint8_t *bRefH;
117                    const uint8_t *bRefV;
118                    const uint8_t *bRefHV;
119                    VECTOR bpredMV;
120                    uint32_t bFcode;
121    // fields for direct mode
122                    VECTOR directmvF[4];
123                    VECTOR directmvB[4];
124                    const VECTOR * referencemv;
125            }
126            SearchData;
127    
128    
129    typedef void(CheckFunc)(const int x, const int y,
130                                                    const int Direction, int * const dir,
131                                                    const SearchData * const Data);
132    
133    static CheckFunc CheckCandidate16, CheckCandidate16no4v, CheckCandidateInt,
134                            CheckCandidateDirect, CheckCandidateDirectno4v,
135                            CheckCandidate8;
136    CheckFunc *CheckCandidate;
137    
138    /*
139     * Calculate the min/max range (in halfpixels)
140     * relative to the _MACROBLOCK_ position
141     */
142    static void __inline
143    get_range(int32_t * const min_dx,
144                      int32_t * const max_dx,
145                      int32_t * const min_dy,
146                      int32_t * const max_dy,
147                      const uint32_t x,
148                      const uint32_t y,
149                      const uint32_t block_sz,      /* block dimension, 8 or 16 */
150                      const uint32_t width,
151                      const uint32_t height,
152                      const uint32_t fcode)
153    {
154    
155            int k;
156            int high = (32 << (fcode - 1)) - 1;
157    
158            k = 2 * (int)(width - x*block_sz);
159            *max_dx = MIN(high, k);
160            k = 2 * (int)(height -  y*block_sz);
161            *max_dy = MIN(high, k);
162    
163            high = -(32 << (fcode - 1));
164            k = -2 * (int)((x+1) * block_sz);
165            *min_dx = MAX(high, k);
166            k = -2 * (int)((y+1) * block_sz);
167            *min_dy = MAX(high, k);
168    
169    }
170    
171    
172    typedef void MainSearchFunc(int x, int y, const SearchData * const Data, int bDirection);
173    
174    static MainSearchFunc DiamondSearch, AdvDiamondSearch, SquareSearch;
175    
176    static void Search8(const SearchData * const OldData,
177                            const int x, const int y,
178                            const uint32_t MotionFlags,
179                            const MBParam * const pParam,
180                            MACROBLOCK * const pMB,
181                            const MACROBLOCK * const pMBs,
182                            const int block);
183    
184    bool
185    MotionEstimation(MBParam * const pParam,
186                                     FRAMEINFO * const current,
187                                     FRAMEINFO * const reference,
188                                     const IMAGE * const pRefH,
189                                     const IMAGE * const pRefV,
190                                     const IMAGE * const pRefHV,
191                                     const uint32_t iLimit);
192    
193    static void
194    SearchP(const uint8_t * const pRef,
195                    const uint8_t * const pRefH,
196                    const uint8_t * const pRefV,
197                    const uint8_t * const pRefHV,
198                    const IMAGE * const pCur,
199                    const int x,
200                    const int y,
201                    const uint32_t MotionFlags,
202                    const uint32_t iQuant,
203                    const uint32_t iFcode,
204                    const MBParam * const pParam,
205                    const MACROBLOCK * const pMBs,
206                    const MACROBLOCK * const prevMBs,
207                    int inter4v,
208                    MACROBLOCK * const pMB);
209    
210    
211    #ifdef _SMP
212    bool
213    SMP_MotionEstimation(MBParam * const pParam,
214                                     FRAMEINFO * const current,
215                                     FRAMEINFO * const reference,
216                                     const IMAGE * const pRefH,
217                                     const IMAGE * const pRefV,
218                                     const IMAGE * const pRefHV,
219                                     const uint32_t iLimit);
220    #endif
221    
222    #endif                                                  /* _MOTION_EST_H_ */
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