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revision 949, Wed Mar 26 14:56:49 2003 UTC revision 1084, Sun Jul 13 09:58:44 2003 UTC
# Line 1  Line 1 
1  /**************************************************************************  /*****************************************************************************
2   *   *
3   *  XVID MPEG-4 VIDEO CODEC   *  XVID MPEG-4 VIDEO CODEC
4   *  -  Motion estimation header  -   *  - Motion Estimation related header -
5   *   *
6   *  This program is an implementation of a part of one or more MPEG-4   *  Copyright(C) 2002 Christoph Lampert <gruel@web.de>
7   *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending   *               2002 Michael Militzer <michael@xvid.org>
8   *  to use this software module in hardware or software products are   *               2002-2003 Radoslaw Czyz <xvid@syskin.cjb.net>
  *  advised that its use may infringe existing patents or copyrights, and  
  *  any such use would be at such party's own risk.  The original  
  *  developer of this software module and his/her company, and subsequent  
  *  editors and their companies, will have no liability for use of this  
  *  software or modifications or derivatives thereof.  
9   *   *
10   *  This program is free software; you can redistribute it and/or modify   *  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   *  it under the terms of the GNU General Public License as published by
# Line 26  Line 21 
21   *  along with this program; if not, write to the Free Software   *  along with this program; if not, write to the Free Software
22   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23   *   *
24   *  $Id: motion_est.h,v 1.3.2.2 2003-03-26 14:56:49 edgomez Exp $   * $Id: motion_est.h,v 1.3.2.13 2003-07-13 09:57:28 syskin Exp $
25   *   *
26   ***************************************************************************/   ****************************************************************************/
27    
28  #ifndef _MOTION_EST_H_  #ifndef _MOTION_EST_H_
29  #define _MOTION_EST_H_  #define _MOTION_EST_H_
# Line 39  Line 34 
34    
35  /* hard coded motion search parameters for motion_est and smp_motion_est */  /* hard coded motion search parameters for motion_est and smp_motion_est */
36    
37  // very large value  /* very large value */
38  #define MV_MAX_ERROR    (4096 * 256)  #define MV_MAX_ERROR    (4096 * 256)
39    
40  /* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */  /* INTER bias for INTER/INTRA decision; mpeg4 spec suggests 2*nb */
# Line 50  Line 45 
45  #define NEIGH_TEND_8X8          40.0  #define NEIGH_TEND_8X8          40.0
46  #define NEIGH_8X8_BIAS          30  #define NEIGH_8X8_BIAS          30
47    
48    #define BITS_MULT                       16
49    
50  /* Parameters which control inter/inter4v decision */  /* Parameters which control inter/inter4v decision */
51  #define IMV16X16                        2  #define IMV16X16                        2
52    
# Line 89  Line 86 
86          (int)(21.2656*NEIGH_TEND_8X8 + 0.5), (int)(24.8580*NEIGH_TEND_8X8 + 0.5),          (int)(21.2656*NEIGH_TEND_8X8 + 0.5), (int)(24.8580*NEIGH_TEND_8X8 + 0.5),
87          (int)(29.6436*NEIGH_TEND_8X8 + 0.5), (int)(36.4949*NEIGH_TEND_8X8 + 0.5)        };          (int)(29.6436*NEIGH_TEND_8X8 + 0.5), (int)(36.4949*NEIGH_TEND_8X8 + 0.5)        };
88    
89  // mv.length table  /* mv.length table */
90  static const uint32_t mvtab[33] = {  static const int mvtab[64] = {
91          1, 2, 3, 4, 6, 7, 7, 7,          1, 2, 3, 4, 6, 7, 7, 7,
92          9, 9, 9, 10, 10, 10, 10, 10,          9, 9, 9, 10, 10, 10, 10, 10,
93          10, 10, 10, 10, 10, 10, 10, 10,          10, 10, 10, 10, 10, 10, 10, 10,
94          10, 11, 11, 11, 11, 11, 11, 12, 12                  10, 11, 11, 11, 11, 11, 11, 12,
95  };                  12, 12, 12, 12, 12, 12, 12, 12,
96                    12, 12, 12, 12, 12, 12, 12, 12,
97                    12, 12, 12, 12, 12, 12, 12, 12, 12 };
98    
99  static const int DQtab[4] = {  static const int DQtab[4] = {
100          -1, -2, 1, 2          -1, -2, 1, 2
# Line 105  Line 104 
104    
105  typedef struct  typedef struct
106  {  {
107  // general fields          /* general fields */
108          int max_dx, min_dx, max_dy, min_dy;          int max_dx, min_dx, max_dy, min_dy;
109          uint32_t rounding;          uint32_t rounding;
110          VECTOR predMV;          VECTOR predMV;
111          VECTOR * currentMV;          VECTOR * currentMV;
112          VECTOR * currentQMV;          VECTOR * currentQMV;
113          int32_t * iMinSAD;          int32_t * iMinSAD;
114          const uint8_t * Ref;          const uint8_t * RefP[6]; /* N, V, H, HV, cU, cV */
         const uint8_t * RefH;  
         const uint8_t * RefV;  
         const uint8_t * RefHV;  
         const uint8_t * RefCU;  
         const uint8_t * RefCV;  
115          const uint8_t * CurU;          const uint8_t * CurU;
116          const uint8_t * CurV;          const uint8_t * CurV;
117          uint8_t * RefQ;          uint8_t * RefQ;
# Line 130  Line 124 
124          int qpel, qpel_precision;          int qpel, qpel_precision;
125          int chroma;          int chroma;
126          int rrv;          int rrv;
 //fields for interpolate and direct modes  
         const uint8_t * bRef;  
         const uint8_t * bRefH;  
         const uint8_t * bRefV;  
         const uint8_t * bRefHV;  
         const uint8_t * b_RefCU;  
         const uint8_t * b_RefCV;  
127    
128            /* fields for interpolate and direct modes */
129            const uint8_t * b_RefP[6]; /* N, V, H, HV, cU, cV */
130          VECTOR bpredMV;          VECTOR bpredMV;
131          uint32_t bFcode;          uint32_t bFcode;
132  // fields for direct mode  
133            /* fields for direct mode */
134          VECTOR directmvF[4];          VECTOR directmvF[4];
135          VECTOR directmvB[4];          VECTOR directmvB[4];
136          const VECTOR * referencemv;          const VECTOR * referencemv;
137    
138            /* BITS/R-D stuff */
139            int16_t * dctSpace;
140            uint32_t iQuant;
141            uint32_t quant_type;
142            int * cbp;
143    
144  } SearchData;  } SearchData;
145    
146    
# Line 213  Line 209 
209                                  const IMAGE * const pRefH,                                  const IMAGE * const pRefH,
210                                  const IMAGE * const pRefV,                                  const IMAGE * const pRefV,
211                                  const IMAGE * const pRefHV,                                  const IMAGE * const pRefHV,
212                                    const IMAGE * const pGMC,
213                                  const uint32_t iLimit);                                  const uint32_t iLimit);
214    
215  static void  static void
# Line 224  Line 221 
221                  const int x,                  const int x,
222                  const int y,                  const int y,
223                  const uint32_t MotionFlags,                  const uint32_t MotionFlags,
224                  const uint32_t GlobalFlags,                  const uint32_t VopFlags,
225                  const uint32_t iQuant,                  const uint32_t VolFlags,
226                  SearchData * const Data,                  SearchData * const Data,
227                  const MBParam * const pParam,                  const MBParam * const pParam,
228                  const MACROBLOCK * const pMBs,                  const MACROBLOCK * const pMBs,
229                  const MACROBLOCK * const prevMBs,                  const MACROBLOCK * const prevMBs,
                 int inter4v,  
230                  MACROBLOCK * const pMB);                  MACROBLOCK * const pMB);
231    
232    static __inline void
233    GMEanalyzeMB (const uint8_t * const pCur,
234                  const uint8_t * const pRef,
235                  const uint8_t * const pRefH,
236                  const uint8_t * const pRefV,
237                  const uint8_t * const pRefHV,
238                  const int x,
239                  const int y,
240                  const MBParam * const pParam,
241                  MACROBLOCK * const pMBs,
242                  SearchData * const Data);
243    
244    void
245    GMEanalysis(const MBParam * const pParam,
246                const FRAMEINFO * const current,
247                const FRAMEINFO * const reference,
248                const IMAGE * const pRefH,
249                const IMAGE * const pRefV,
250                const IMAGE * const pRefHV);
251    
252    
253    
254    WARPPOINTS
255    GlobalMotionEst(MACROBLOCK * const pMBs,
256                                    const MBParam * const pParam,
257                                    const FRAMEINFO * const current,
258                                    const FRAMEINFO * const reference,
259                                    const IMAGE * const pRefH,
260                                    const IMAGE * const pRefV,
261                                    const IMAGE * const pRefHV      );
262    
263    
264  static WARPPOINTS  int
265  GlobalMotionEst(const MACROBLOCK * const pMBs,  GlobalMotionEstRefine(WARPPOINTS *const startwp,
266                          MACROBLOCK * const pMBs,
267                                  const MBParam * const pParam,                                  const MBParam * const pParam,
268                                  const FRAMEINFO * const current,                                  const FRAMEINFO * const current,
269                                  const FRAMEINFO * const reference,                                  const FRAMEINFO * const reference,
270                          const IMAGE * const pCurr,
271                          const IMAGE * const pRef,
272                                  const IMAGE * const pRefH,                                  const IMAGE * const pRefH,
273                                  const IMAGE * const pRefV,                                  const IMAGE * const pRefV,
274                                  const IMAGE * const pRefHV      );                                  const IMAGE * const pRefHV      );
275    
276    
277    
278    
279    int
280    globalSAD(const WARPPOINTS *const wp,
281                    const MBParam * const pParam,
282                    const MACROBLOCK * const pMBs,
283                    const FRAMEINFO * const current,
284                    const IMAGE * const pRef,
285                    const IMAGE * const pCurr,
286                    uint8_t *const GMCblock);
287    
288  #define iDiamondSize 2  #define iDiamondSize 2
289    
290  static __inline uint32_t  static __inline uint32_t
# Line 288  Line 330 
330  #include "../quant/quant_mpeg4.h"  #include "../quant/quant_mpeg4.h"
331  #include "../quant/quant_h263.h"  #include "../quant/quant_h263.h"
332  #include "../bitstream/vlc_codes.h"  #include "../bitstream/vlc_codes.h"
333    #include "../dct/fdct.h"
334    
335  static int  static int
336  CountMBBitsInter(SearchData * const Data,  CountMBBitsInter(SearchData * const Data,
# Line 305  Line 348 
348  static int  static int
349  CountMBBitsIntra(const SearchData * const Data);  CountMBBitsIntra(const SearchData * const Data);
350    
351    static int
352    CountMBBitsGMC(const SearchData * const Data, const IMAGE * const vGMC, const int x, const int y);
353    
354  int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);  int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
355  int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);  int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
356    
357    /* one over lambda for R-D mode decision and motion search */
358    #define LAMBDA          ( (int)(BITS_MULT/1.0) )
359    
360    static __inline unsigned int
361    Block_CalcBits( int16_t * const coeff,
362                                    int16_t * const data,
363                                    int16_t * const dqcoeff,
364                                    const uint32_t quant, const int quant_type,
365                                    uint32_t * cbp,
366                                    const int block)
367    {
368            int sum;
369            int bits;
370            int distortion = 0;
371            int i;
372    
373            fdct(data);
374    
375            if (quant_type) sum = quant_inter(coeff, data, quant);
376            else sum = quant4_inter(coeff, data, quant);
377    
378            if (sum > 0) {
379                    *cbp |= 1 << (5 - block);
380                    bits = BITS_MULT * CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
381    
382                    if (quant_type) dequant_inter(dqcoeff, coeff, quant);
383                    else dequant4_inter(dqcoeff, coeff, quant);
384    
385                    for (i = 0; i < 64; i++)
386                            distortion += (data[i] - dqcoeff[i])*(data[i] - dqcoeff[i]);
387    
388            } else {
389                    bits = 0;
390                    for (i = 0; i < 64; i++)
391                            distortion += data[i]*data[i];
392            }
393    
394    
395            bits += (LAMBDA*distortion)/(quant*quant);
396    
397            return bits;
398    }
399    
400    static __inline unsigned int
401    Block_CalcBitsIntra(int16_t * const coeff,
402                                            int16_t * const data,
403                                            int16_t * const dqcoeff,
404                                            const uint32_t quant, const int quant_type,
405                                            uint32_t * cbp,
406                                            const int block,
407                                            int * dcpred)
408    {
409            int bits, i;
410            int distortion = 0;
411            uint32_t iDcScaler = get_dc_scaler(quant, block < 4);
412            int b_dc;
413    
414            fdct(data);
415            data[0] -= 1024;
416    
417            if (quant_type) quant_intra(coeff, data, quant, iDcScaler);
418            else quant4_intra(coeff, data, quant, iDcScaler);
419    
420            b_dc = coeff[0];
421            if (block < 4) {
422                    coeff[0] -= *dcpred;
423                    *dcpred = b_dc;
424            }
425    
426            bits = BITS_MULT*CodeCoeffIntra_CalcBits(coeff, scan_tables[0]);
427            if (bits != 0) *cbp |= 1 << (5 - block);
428    
429            if (block < 4) bits += BITS_MULT*dcy_tab[coeff[0] + 255].len;
430            else bits += BITS_MULT*dcc_tab[coeff[0] + 255].len;
431    
432            coeff[0] = b_dc;
433            if (quant_type) dequant_intra(dqcoeff, coeff, quant, iDcScaler);
434            else dequant4_intra(dqcoeff, coeff, quant, iDcScaler);
435    
436            for (i = 0; i < 64; i++) {
437                    distortion += (data[i] - dqcoeff[i])*(data[i] - dqcoeff[i]);
438            }
439    
440            bits += (LAMBDA*distortion)/(quant*quant);
441    
442            return bits;
443    }
444    
445  #endif                                                  /* _MOTION_EST_H_ */  #endif                                                  /* _MOTION_EST_H_ */
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