[cvs] / xvidcore / src / motion / estimation_common.c Repository:
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Diff of /xvidcore/src/motion/estimation_common.c

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revision 1.6, Sun Oct 3 14:25:01 2004 UTC revision 1.12.2.1, Fri Dec 9 05:07:31 2005 UTC
# Line 55  Line 55 
55  { 0, 1, 0, 0 };  { 0, 1, 0, 0 };
56    
57  const int xvid_me_lambda_vec16[32] =  const int xvid_me_lambda_vec16[32] =
58          {     0    ,(int)(1.00235 * NEIGH_TEND_16X16 + 0.5),          {     0    ,(int)(1.0 * NEIGH_TEND_16X16 + 0.5),
59          (int)(1.15582*NEIGH_TEND_16X16 + 0.5), (int)(1.31976*NEIGH_TEND_16X16 + 0.5),          (int)(2.0*NEIGH_TEND_16X16 + 0.5), (int)(3.0*NEIGH_TEND_16X16 + 0.5),
60          (int)(1.49591*NEIGH_TEND_16X16 + 0.5), (int)(1.68601*NEIGH_TEND_16X16 + 0.5),          (int)(4.0*NEIGH_TEND_16X16 + 0.5), (int)(5.0*NEIGH_TEND_16X16 + 0.5),
61          (int)(1.89187*NEIGH_TEND_16X16 + 0.5), (int)(2.11542*NEIGH_TEND_16X16 + 0.5),          (int)(6.0*NEIGH_TEND_16X16 + 0.5), (int)(7.0*NEIGH_TEND_16X16 + 0.5),
62          (int)(2.35878*NEIGH_TEND_16X16 + 0.5), (int)(2.62429*NEIGH_TEND_16X16 + 0.5),          (int)(8.0*NEIGH_TEND_16X16 + 0.5), (int)(9.0*NEIGH_TEND_16X16 + 0.5),
63          (int)(2.91455*NEIGH_TEND_16X16 + 0.5), (int)(3.23253*NEIGH_TEND_16X16 + 0.5),          (int)(10.0*NEIGH_TEND_16X16 + 0.5), (int)(11.0*NEIGH_TEND_16X16 + 0.5),
64          (int)(3.58158*NEIGH_TEND_16X16 + 0.5), (int)(3.96555*NEIGH_TEND_16X16 + 0.5),          (int)(12.0*NEIGH_TEND_16X16 + 0.5), (int)(13.0*NEIGH_TEND_16X16 + 0.5),
65          (int)(4.38887*NEIGH_TEND_16X16 + 0.5), (int)(4.85673*NEIGH_TEND_16X16 + 0.5),          (int)(14.0*NEIGH_TEND_16X16 + 0.5), (int)(15.0*NEIGH_TEND_16X16 + 0.5),
66          (int)(5.37519*NEIGH_TEND_16X16 + 0.5), (int)(5.95144*NEIGH_TEND_16X16 + 0.5),          (int)(16.0*NEIGH_TEND_16X16 + 0.5), (int)(17.0*NEIGH_TEND_16X16 + 0.5),
67          (int)(6.59408*NEIGH_TEND_16X16 + 0.5), (int)(7.31349*NEIGH_TEND_16X16 + 0.5),          (int)(18.0*NEIGH_TEND_16X16 + 0.5), (int)(19.0*NEIGH_TEND_16X16 + 0.5),
68          (int)(8.12242*NEIGH_TEND_16X16 + 0.5), (int)(9.03669*NEIGH_TEND_16X16 + 0.5),          (int)(20.0*NEIGH_TEND_16X16 + 0.5), (int)(21.0*NEIGH_TEND_16X16 + 0.5),
69          (int)(10.0763*NEIGH_TEND_16X16 + 0.5), (int)(11.2669*NEIGH_TEND_16X16 + 0.5),          (int)(22.0*NEIGH_TEND_16X16 + 0.5), (int)(23.0*NEIGH_TEND_16X16 + 0.5),
70          (int)(12.6426*NEIGH_TEND_16X16 + 0.5), (int)(14.2493*NEIGH_TEND_16X16 + 0.5),          (int)(24.0*NEIGH_TEND_16X16 + 0.5), (int)(25.0*NEIGH_TEND_16X16 + 0.5),
71          (int)(16.1512*NEIGH_TEND_16X16 + 0.5), (int)(18.442*NEIGH_TEND_16X16 + 0.5),          (int)(26.0*NEIGH_TEND_16X16 + 0.5), (int)(27.0*NEIGH_TEND_16X16 + 0.5),
72          (int)(21.2656*NEIGH_TEND_16X16 + 0.5), (int)(24.8580*NEIGH_TEND_16X16 + 0.5),          (int)(28.0*NEIGH_TEND_16X16 + 0.5), (int)(29.0*NEIGH_TEND_16X16 + 0.5),
73          (int)(29.6436*NEIGH_TEND_16X16 + 0.5), (int)(36.4949*NEIGH_TEND_16X16 + 0.5)          (int)(30.0*NEIGH_TEND_16X16 + 0.5), (int)(31.0*NEIGH_TEND_16X16 + 0.5)
74  };  };
75    
76  /*****************************************************************************  /*****************************************************************************
# Line 269  Line 269 
269                                  CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);                                  CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
270                                  break;                                  break;
271                          case 2 + 8:                          case 2 + 8:
272                                  CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);                                  CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
                                 CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);  
273                                  CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);                                  CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
274                                    CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
275                                  break;                                  break;
276                          case 1 + 8:                          case 1 + 8:
277                                  CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);                                  CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
                                 CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);  
278                                  CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);                                  CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
279                                    CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
280                                  break;                                  break;
281                          default:                /* 1+2+4+8 == we didn't find anything at all */                          default:                /* 1+2+4+8 == we didn't find anything at all */
282                                  CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);                                  CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
# Line 323  Line 323 
323    
324          unsigned int * const iDirection = &data->dir;          unsigned int * const iDirection = &data->dir;
325    
326          do {          for (;;) {
327                  *iDirection = 0;                  *iDirection = 0;
328                  if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);                  if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);
329                  if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);                  if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);
330                  if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);                  if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);
331                  if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);                  if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);
332    
333                    if (*iDirection == 0)
334                            break;
335    
336                  /* now we're doing diagonal checks near our candidate */                  /* now we're doing diagonal checks near our candidate */
337                  bDirection = *iDirection;                  bDirection = *iDirection;
                 if (*iDirection) {              /* checking if anything found */  
                         *iDirection = 0;  
338                          x = data->currentMV->x; y = data->currentMV->y;                          x = data->currentMV->x; y = data->currentMV->y;
339                          if (bDirection & 3) {   /* our candidate is left or right */                          if (bDirection & 3) {   /* our candidate is left or right */
340                                  CHECK_CANDIDATE(x, y + iDiamondSize, 8);                                  CHECK_CANDIDATE(x, y + iDiamondSize, 8);
# Line 342  Line 343 
343                                  CHECK_CANDIDATE(x + iDiamondSize, y, 2);                                  CHECK_CANDIDATE(x + iDiamondSize, y, 2);
344                                  CHECK_CANDIDATE(x - iDiamondSize, y, 1);                                  CHECK_CANDIDATE(x - iDiamondSize, y, 1);
345                          }                          }
346                          bDirection += *iDirection;                  bDirection |= *iDirection;
347                          x = data->currentMV->x; y = data->currentMV->y;                          x = data->currentMV->x; y = data->currentMV->y;
348                  }                  }
349          }          }
         while (bDirection);  
 }  
350    
351  void  void
352  xvid_me_SubpelRefine(VECTOR centerMV, SearchData * const data, CheckFunc * const CheckCandidate, int dir)  xvid_me_SubpelRefine(VECTOR centerMV, SearchData * const data, CheckFunc * const CheckCandidate, int dir)
# Line 390  Line 389 
389    
390          int xo = 2*data->currentMV[0].x, yo = 2*data->currentMV[0].y;          int xo = 2*data->currentMV[0].x, yo = 2*data->currentMV[0].y;
391    
392          data->currentQMV[0].x = v_best.x = xo;          data->currentQMV[0].x = v_best.x = v_best2.x = xo;
393          data->currentQMV[0].y = v_best.y = yo;          data->currentQMV[0].y = v_best.y = v_best2.y = yo;
394    
395          data->qpel_precision = 1;          data->qpel_precision = 1;
396    
# Line 496  Line 495 
495          CHECK_CANDIDATE((xo+xo2)>>1, (yo+yo2)>>1, direction);          CHECK_CANDIDATE((xo+xo2)>>1, (yo+yo2)>>1, direction);
496    
497  }  }
498    
499    /* it's the positive max, so "32" needs fcode of 2, not 1 */
500    unsigned int
501    getMinFcode(const int MVmax)
502    {
503            unsigned int fcode;
504            for (fcode = 1; (16 << fcode) <= MVmax; fcode++);
505            return fcode;
506    }
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