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revision 1.1, Wed Sep 10 22:18:59 2003 UTC revision 1.1.2.2, Tue Sep 30 18:20:31 2003 UTC
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1    /*****************************************************************************
2     *
3     *  XVID MPEG-4 VIDEO CODEC
4     *  - Motion Estimation related header -
5     *
6     *  Copyright(C) 2002 Christoph Lampert <gruel@web.de>
7     *               2002 Michael Militzer <michael@xvid.org>
8     *               2002-2003 Radoslaw Czyz <xvid@syskin.cjb.net>
9     *
10     *  This program is free software ; you can redistribute it and/or modify
11     *  it under the terms of the GNU General Public License as published by
12     *  the Free Software Foundation ; either version 2 of the License, or
13     *  (at your option) any later version.
14     *
15     *  This program is distributed in the hope that it will be useful,
16     *  but WITHOUT ANY WARRANTY ; without even the implied warranty of
17     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18     *  GNU General Public License for more details.
19     *
20     *  You should have received a copy of the GNU General Public License
21     *  along with this program ; if not, write to the Free Software
22     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23     *
24     * $Id$
25     *
26     ****************************************************************************/
27    
28    #ifndef _ESTIMATION_H_
29    #define _ESTIMATION_H_
30    
31    #include "../portab.h"
32    #include "../global.h"
33    #include "../image/reduced.h"
34    
35    /* hard coded motion search parameters */
36    
37    /* very large value */
38    #define MV_MAX_ERROR    (4096 * 256)
39    
40    /* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */
41    #define MV16_INTER_BIAS 512
42    
43    /* vector map (vlc delta size) smoother parameters ! float !*/
44    #define NEIGH_TEND_16X16                10.5
45    #define NEIGH_TEND_8X8                  40.0
46    #define NEIGH_8X8_BIAS                  30
47    
48    #define BITS_MULT                               16
49    
50    #define INITIAL_SKIP_THRESH             10
51    #define FINAL_SKIP_THRESH               50
52    #define MAX_SAD00_FOR_SKIP              20
53    #define MAX_CHROMA_SAD_FOR_SKIP 22
54    
55    /* Parameters which control inter/inter4v decision */
56    #define IMV16X16                                2
57    
58    extern const int xvid_me_lambda_vec16[32];
59    
60    #define CHECK_CANDIDATE(X,Y,D) { \
61            CheckCandidate((X),(Y), data, (D) ); }
62    
63    #define RRV_MV_SCALEDOWN(a)     ( (a)>=0 ? (a+1)/2 : (a-1)/2 )
64    
65    /* fast ((A)/2)*2 */
66    #define EVEN(A)         (((A)<0?(A)+1:(A)) & ~1)
67    
68    #define MVequal(A,B) ( ((A).x)==((B).x) && ((A).y)==((B).y) )
69    
70    static const VECTOR zeroMV = { 0, 0 };
71    
72    typedef struct
73    {
74            /* general fields */
75            int max_dx, min_dx, max_dy, min_dy;
76            uint32_t rounding;
77            VECTOR predMV;
78            VECTOR * currentMV;
79            VECTOR * currentQMV;
80            VECTOR * currentMV2;
81            VECTOR * currentQMV2;
82            int32_t * iMinSAD;
83            int32_t * iMinSAD2;
84            const uint8_t * RefP[6]; /* N, V, H, HV, cU, cV */
85            const uint8_t * CurU;
86            const uint8_t * CurV;
87            uint8_t * RefQ;
88            const uint8_t * Cur;
89            uint32_t lambda16;
90            uint32_t lambda8;
91            uint32_t iEdgedWidth;
92            uint32_t iFcode;
93            int * temp;
94            unsigned int * dir;
95            int qpel, qpel_precision;
96            int chroma;
97            int rrv;
98    
99            /* fields for interpolate and direct modes */
100            const uint8_t * b_RefP[6]; /* N, V, H, HV, cU, cV */
101            VECTOR bpredMV;
102            uint32_t bFcode;
103    
104            /* fields for direct mode */
105            VECTOR directmvF[4];
106            VECTOR directmvB[4];
107            const VECTOR * referencemv;
108    
109            /* BITS/R-D stuff */
110            int16_t * dctSpace;
111            uint32_t iQuant;
112            uint32_t quant_type;
113            int * cbp;
114    
115    } SearchData;
116    
117    typedef void(CheckFunc)(const int x, const int y,
118                                                    const SearchData * const Data,
119                                                    const unsigned int Direction);
120    
121    CheckFunc CheckCandidate16no4v; /* shared between p-vop and b-vop search */
122    
123    uint8_t *
124    xvid_me_interpolate8x8qpel(const int x, const int y, const uint32_t block,
125                                                            const uint32_t dir, const SearchData * const data);
126    
127    uint8_t *
128    xvid_me_interpolate16x16qpel(const int x, const int y, const uint32_t dir,
129                                                            const SearchData * const data);
130    
131    int32_t
132    xvid_me_ChromaSAD(const int dx, const int dy, const SearchData * const data);
133    
134    int
135    xvid_me_SkipDecisionP(const IMAGE * current, const IMAGE * reference,
136                                            const int x, const int y,
137                                            const uint32_t stride, const uint32_t iQuant, int rrv);
138    
139    #define iDiamondSize 2
140    typedef void
141    MainSearchFunc(int x, int y, const SearchData * const Data,
142                               int bDirection, CheckFunc * const CheckCandidate);
143    
144    MainSearchFunc xvid_me_DiamondSearch, xvid_me_AdvDiamondSearch, xvid_me_SquareSearch;
145    
146    void
147    xvid_me_SubpelRefine(const SearchData * const data, CheckFunc * const CheckCandidate);
148    
149    void
150    xvid_me_ModeDecision_RD(SearchData * const Data,
151                    MACROBLOCK * const pMB,
152                    const MACROBLOCK * const pMBs,
153                    const int x, const int y,
154                    const MBParam * const pParam,
155                    const uint32_t MotionFlags,
156                    const uint32_t VopFlags,
157                    const uint32_t VolFlags,
158                    const IMAGE * const pCurrent,
159                    const IMAGE * const pRef,
160                    const IMAGE * const vGMC,
161                    const int coding_type);
162    
163    void
164    xvid_me_ModeDecision_Fast(SearchData * const Data,
165                    MACROBLOCK * const pMB,
166                    const MACROBLOCK * const pMBs,
167                    const int x, const int y,
168                    const MBParam * const pParam,
169                    const uint32_t MotionFlags,
170                    const uint32_t VopFlags,
171                    const uint32_t VolFlags,
172                    const IMAGE * const pCurrent,
173                    const IMAGE * const pRef,
174                    const IMAGE * const vGMC,
175                    const int coding_type);
176    
177    
178    #endif                                                  /* _ESTIMATION_H_ */
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