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revision 1071, Thu Jun 19 09:59:37 2003 UTC revision 1075, Thu Jun 26 11:50:37 2003 UTC
# Line 21  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 1.3.2.10 2003-06-19 09:59:37 syskin Exp $   * $Id: motion_est.h,v 1.3.2.11 2003-06-26 11:50:27 syskin Exp $
25   *   *
26   ****************************************************************************/   ****************************************************************************/
27    
# Line 302  Line 302 
302  int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);  int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
303  int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);  int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
304    
305  #define LAMBDA          ( (int)(1.0*BITS_MULT) )  /* one over lambda for R-D mode decision and motion search */
306    #define LAMBDA          ( (int)(BITS_MULT/1.0) )
307    
308  static __inline unsigned int  static __inline unsigned int
309  Block_CalcBits( int16_t * const coeff,  Block_CalcBits( int16_t * const coeff,
310                                  int16_t * const data,                                  int16_t * const data,
311                                    int16_t * const dqcoeff,
312                                  const uint32_t quant, const int quant_type,                                  const uint32_t quant, const int quant_type,
313                                  uint32_t * cbp,                                  uint32_t * cbp,
314                                  const int block)                                  const int block)
315  {  {
316          int sum;          int sum;
317          int bits;          int bits;
         const int lambda = LAMBDA*quant*quant;  
318          int distortion = 0;          int distortion = 0;
319          int i;          int i;
320    
# Line 327  Line 328 
328                  bits = BITS_MULT * CodeCoeffInter_CalcBits(coeff, scan_tables[0]);                  bits = BITS_MULT * CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
329          } else bits = 0;          } else bits = 0;
330    
331          if (quant_type == 0) dequant_inter(coeff, coeff, quant);          if (quant_type == 0) dequant_inter(dqcoeff, coeff, quant);
332          else dequant4_inter(coeff, coeff, quant);          else dequant4_inter(dqcoeff, coeff, quant);
333    
334          for (i = 0; i < 64; i++) {          for (i = 0; i < 64; i++) {
335                  distortion += (data[i] - coeff[i])*(data[i] - coeff[i]);                  distortion += (data[i] - dqcoeff[i])*(data[i] - dqcoeff[i]);
336          }          }
         bits += (BITS_MULT*BITS_MULT*distortion)/lambda;  
337    
338            bits += (LAMBDA*distortion)/(quant*quant);
339    
340          return bits;          return bits;
341  }  }
# Line 342  Line 343 
343  static __inline unsigned int  static __inline unsigned int
344  Block_CalcBitsIntra(int16_t * const coeff,  Block_CalcBitsIntra(int16_t * const coeff,
345                                          int16_t * const data,                                          int16_t * const data,
346                                            int16_t * const dqcoeff,
347                                          const uint32_t quant, const int quant_type,                                          const uint32_t quant, const int quant_type,
348                                          uint32_t * cbp,                                          uint32_t * cbp,
349                                          const int block,                                          const int block,
350                                          int * dcpred)                                          int * dcpred)
351  {  {
352          int bits, i;          int bits, i;
         const int lambda = LAMBDA*quant*quant;  
353          int distortion = 0;          int distortion = 0;
354          uint32_t iDcScaler = get_dc_scaler(quant, block < 4);          uint32_t iDcScaler = get_dc_scaler(quant, block < 4);
355          int b_dc;          int b_dc;
# Line 356  Line 357 
357          fdct(data);          fdct(data);
358          data[0] -= 1024;          data[0] -= 1024;
359    
360          if (quant_type == 0) quant_intra_c(coeff, data, quant, iDcScaler); // MUST BE _C          if (quant_type == 0) quant_intra(coeff, data, quant, iDcScaler);
361          else quant4_intra_c(coeff, data, quant, iDcScaler); // MUST BE _C          else quant4_intra(coeff, data, quant, iDcScaler);
362    
363          b_dc = coeff[0];          b_dc = coeff[0];
364          if (block < 4) {          if (block < 4) {
# Line 372  Line 373 
373          else bits += BITS_MULT*dcc_tab[coeff[0] + 255].len;          else bits += BITS_MULT*dcc_tab[coeff[0] + 255].len;
374    
375          coeff[0] = b_dc;          coeff[0] = b_dc;
376          if (quant_type == 0) dequant_intra(coeff, coeff, quant, iDcScaler);          if (quant_type == 0) dequant_intra(dqcoeff, coeff, quant, iDcScaler);
377          else dequant4_intra(coeff, coeff, quant, iDcScaler);          else dequant4_intra(dqcoeff, coeff, quant, iDcScaler);
378    
379          for (i = 0; i < 64; i++) {          for (i = 0; i < 64; i++) {
380                  distortion += (data[i] - coeff[i])*(data[i] - coeff[i]);                  distortion += (data[i] - dqcoeff[i])*(data[i] - dqcoeff[i]);
381          }          }
382    
383          bits += (BITS_MULT*BITS_MULT*distortion)/lambda;          bits += (LAMBDA*distortion)/(quant*quant);
384    
385          return bits;          return bits;
386  }  }
387    
   
388  #endif                                                  /* _MOTION_EST_H_ */  #endif                                                  /* _MOTION_EST_H_ */

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