
/*!
 ***************************************************************************
 * \file rdopt.c
 *
 * \brief
 *    Rate-Distortion optimized mode decision
 *
 * \author
 *    - Heiko Schwarz              <hschwarz@hhi.de>
 *    - Valeri George              <george@hhi.de>
 *    - Lowell Winger              <lwinger@lsil.com>
 *    - Alexis Michael Tourapis    <alexismt@ieee.org>
 * \date
 *    12. April 2001
 **************************************************************************
 */
/*******************************************************************************************
* Modifications:
*
* October 7, 2005: Support for the new 4:4:4 coding method (Advanced 4:4:4 Profile in JVT-P017)
*
* Copyright 2005, Thomson Inc, all rights reserved
*
* Haoping.Yu@thomson.net
*
********************************************************************************************/

/*******************************************************************************************
* Modifications:
*
* August 4, 2006: Support for the new 4:4:4 coding method (Independent mode in JFVM 4)
*
* Copyright 2006, Mitsubishi Electric Co., all rights reserved
*
* Sekiguchi.Shunichi@eb.MitsubishiElectric.co.jp
*
********************************************************************************************/

#include <stdlib.h>
#include <math.h>
#include <assert.h>
#include <limits.h>
#include <memory.h>
#include <string.h>

#include "global.h"

#include "rdopt_coding_state.h"
#include "memalloc.h"
#include "mb_access.h"
#include "elements.h"
#include "intrarefresh.h"
#include "image.h"
#include "transform8x8.h"
#include "cabac.h"   
#include "vlc.h"
#include "fast_me.h"
#include "ratectl.h"            // head file for rate control
#include "mode_decision.h"
#define KS_MV

//Rate control

int QP,QP2;
int DELTA_QP,DELTA_QP2;

imgpel pred[16][16];

#define FASTMODE 1
//#define RESET_STATE

extern const int LEVELMVLIMIT[17][6];
extern int   QP2QUANT[40];

// extern short OffsetList4x4[15][16];
// extern short OffsetList8x8[5][64];
extern short OffsetList4x4[25][16]; /*lliu, 07/13*/
extern short OffsetList8x8[15][64];  /*lliu, 07/13*/

extern const int OffsetBits;

imgpel   rec_mbY[16][16], rec_mbU[16][16], rec_mbV[16][16];    // reconstruction values

RD_8x8DATA tr4x4, tr8x8;

int   bestInterFAdjust4x4[16][16], bestIntraFAdjust4x4[16][16];
int   bestInterFAdjust8x8[16][16], bestIntraFAdjust8x8[16][16];
int   bestInterFAdjust4x4Cr[2][16][16], bestIntraFAdjust4x4Cr[2][16][16];
int   bestIntraFAdjust4x4_addluma[2][16][16], bestIntraFAdjust8x8_addluma[2][16][16]; /*lliu, 07/13*/
int   bestInterFAdjust4x4_addluma[2][16][16], bestInterFAdjust8x8_addluma[2][16][16]; /*lliu, 07/13*/
int   fadjust8x8[16][16], fadjust4x4[16][16], fadjust4x4Cr[2][16][16], fadjust8x8Cr[2][16][16];    

int   ****cofAC=NULL, ****cofAC8x8=NULL;        // [8x8block][4x4block][level/run][scan_pos]
int   ***cofDC=NULL;                       // [yuv][level/run][scan_pos]
int   **cofAC4x4=NULL, ****cofAC4x4intern=NULL; // [level/run][scan_pos]
int   cbp, cbp8x8, cnt_nonz_8x8;
int64 cbp_blk;
int   cbp_blk8x8;
char  frefframe[4][4], brefframe[4][4];
int   b8mode[4], b8pdir[4];
short best8x8mode [4];                // [block]
short best8x8pdir  [MAXMODE][4];       // [mode][block]
short best8x8fwref [MAXMODE][4];       // [mode][block]
short best8x8bwref [MAXMODE][4];       // [mode][block]


CSptr cs_mb=NULL, cs_b8=NULL, cs_cm=NULL, cs_imb=NULL, cs_ib8=NULL, cs_ib4=NULL, cs_pc=NULL;
int   best_c_imode;
int   best_i16offset;
short best_mode;
short  bi_pred_me;

//mixed transform sizes definitions
int   luma_transform_size_8x8_flag;

short all_mv8x8[2][2][4][4][2];       //[8x8_data/temp_data][LIST][block_x][block_y][MVx/MVy]
short pred_mv8x8[2][2][4][4][2];

int   ****cofAC_8x8ts = NULL;        // [8x8block][4x4block][level/run][scan_pos]

int64    cbp_blk8_8x8ts;
int      cbp8_8x8ts;
int      cost8_8x8ts;
int      cnt_nonz8_8x8ts;


void StoreMV8x8(int dir);
void RestoreMV8x8(int dir);
// end of mixed transform sizes definitions

//Adaptive Rounding update function
void update_offset_params(int mode, int luma_transform_size_8x8_flag);

// Residue Color Transform
int   cofAC4x4_chroma[2][2][18];
int   rec_resG_8x8[16][16], resTrans_R_8x8[16][16], resTrans_B_8x8[16][16];
int   rec_resG_8x8ts[16][16], resTrans_R_8x8ts[16][16], resTrans_B_8x8ts[16][16];
int   mprRGB_8x8[3][16][16], mprRGB_8x8ts[3][16][16];
char  b4_ipredmode[16], b4_intra_pred_modes[16];

/*!
 ************************************************************************
 * \brief
 *    delete structure for RD-optimized mode decision
 ************************************************************************
 */
void clear_rdopt ()
{
  free_mem_DCcoeff (cofDC);
  free_mem_ACcoeff (cofAC);
  free_mem_ACcoeff (cofAC8x8);
  free_mem_ACcoeff (cofAC4x4intern);
  
  if (input->Transform8x8Mode)
  {
    free_mem_ACcoeff (cofAC_8x8ts);
  }
  
  // structure for saving the coding state
  delete_coding_state (cs_mb);
  delete_coding_state (cs_b8);
  delete_coding_state (cs_cm);
  delete_coding_state (cs_imb);
  delete_coding_state (cs_ib8);
  delete_coding_state (cs_ib4);
  delete_coding_state (cs_pc);
}


/*!
 ************************************************************************
 * \brief
 *    create structure for RD-optimized mode decision
 ************************************************************************
 */
void init_rdopt ()
{
  rdopt = NULL;
  
  get_mem_DCcoeff (&cofDC);
  get_mem_ACcoeff (&cofAC);
  get_mem_ACcoeff (&cofAC8x8);
  get_mem_ACcoeff (&cofAC4x4intern);
  cofAC4x4 = cofAC4x4intern[0][0];
  
  if (input->Transform8x8Mode)
  {
    get_mem_ACcoeff (&cofAC_8x8ts);
  }
  
  // structure for saving the coding state
  cs_mb  = create_coding_state ();
  cs_b8  = create_coding_state ();
  cs_cm  = create_coding_state ();
  cs_imb = create_coding_state ();
  cs_ib8 = create_coding_state ();
  cs_ib4 = create_coding_state ();
  cs_pc  = create_coding_state ();
}



/*!
 *************************************************************************************
 * \brief
 *    Updates the pixel map that shows, which reference frames are reliable for
 *    each MB-area of the picture.
 *
 * \note
 *    The new values of the pixel_map are taken from the temporary buffer refresh_map
 *
 *************************************************************************************
 */
void UpdatePixelMap()
{
  int mx,my,y,x,i,j;
  if (img->type==I_SLICE)
  {
    for (y=0; y<img->height; y++)
      for (x=0; x<img->width; x++)
      {
        pixel_map[y][x]=1;
      }
  }
  else
  {
    for (my=0; my<img->height >> 3; my++)
      for (mx=0; mx<img->width >> 3;  mx++)
      {
        j = my*8 + 8;
        i = mx*8 + 8;
        if (refresh_map[my][mx])
        {
          for (y=my*8; y<j; y++)
            for (x=mx*8; x<i; x++)  
              pixel_map[y][x] = 1;
        }
        else
        {
          for (y=my*8; y<j; y++)
            for (x=mx*8; x<i; x++)  
              pixel_map[y][x] = min(pixel_map[y][x] + 1, input->num_ref_frames+1);
        }
      }
  }
}

/*!
 *************************************************************************************
 * \brief
 *    Checks if a given reference frame is reliable for the current
 *    macroblock, given the motion vectors that the motion search has
 *    returned.
 *
 * \return
 *    If the return value is 1, the reference frame is reliable. If it
 *    is 0, then it is not reliable.
 *
 * \note
 *    A specific area in each reference frame is assumed to be unreliable
 *    if the same area has been intra-refreshed in a subsequent frame.
 *    The information about intra-refreshed areas is kept in the pixel_map.
 *
 *************************************************************************************
 */
int CheckReliabilityOfRef (int block, int list_idx, int ref, int mode)
{
  int y,x, block_y, block_x, dy, dx, y_pos, x_pos, yy, xx, pres_x, pres_y;
  int maxold_x  = img->width-1;
  int maxold_y  = img->height-1;
  int ref_frame = ref+1;
  
  int by0 = (mode>=4?2*(block >> 1):mode==2?2*block:0);
  int by1 = by0 + (mode>=4||mode==2?2:4);
  int bx0 = (mode>=4?2*(block & 0x01):mode==3?2*block:0);
  int bx1 = bx0 + (mode>=4||mode==3?2:4);
  
  for (block_y=by0; block_y<by1; block_y++)
  {
    for (block_x=bx0; block_x<bx1; block_x++)
    {
      y_pos  = img->all_mv[block_y][block_x][list_idx][ref][mode][1];
      y_pos += (img->block_y + block_y) * BLOCK_SIZE * 4;
      x_pos  = img->all_mv[block_y][block_x][list_idx][ref][mode][0];
      x_pos += (img->block_x + block_x) * BLOCK_SIZE * 4;
      
      /* Here we specify which pixels of the reference frame influence
         the reference values and check their reliability. This is
         based on the function Get_Reference_Pixel */

      dy = y_pos & 3;
      dx = x_pos & 3;

      y_pos = (y_pos-dy) >> 2;
      x_pos = (x_pos-dx) >> 2;
      
      if (dy==0 && dx==0) //full-pel
      {
        for (y=y_pos ; y < y_pos + BLOCK_SIZE ; y++)
          for (x=x_pos ; x < x_pos + BLOCK_SIZE ; x++)
            if (pixel_map[max(0,min(maxold_y,y))][max(0,min(maxold_x,x))] < ref_frame)
              return 0;
      }
      else  /* other positions */
      {
        if (dy == 0)
        {
          for (y = y_pos ; y < y_pos + BLOCK_SIZE ; y++)
          {
            pres_y = max(0,min(maxold_y,y));
            for (x = x_pos ; x < x_pos + BLOCK_SIZE ; x++)
            {
              for(xx = -2 ; xx < 4 ; xx++) {
                pres_x = max(0, min( maxold_x, x + xx));
                if (pixel_map[pres_y][pres_x] < ref_frame)
                  return 0;
              }
            }
          }
        }        
        else if (dx == 0)
        {
          for (y = y_pos ; y < y_pos + BLOCK_SIZE ; y++)
            for (x=x_pos ; x < x_pos + BLOCK_SIZE ; x++)
            {
              pres_x = max(0,min(maxold_x,x));
              for(yy=-2;yy<4;yy++) {
                pres_y = max(0,min(maxold_y, yy + y));
                if (pixel_map[pres_y][pres_x] < ref_frame)
                  return 0;
              }
            }
        }
        else if (dx == 2)
        {
          for (y = y_pos ; y < y_pos + BLOCK_SIZE ; y++)
            for (x = x_pos ; x < x_pos + BLOCK_SIZE ; x++)
            {
              for(yy=-2;yy<4;yy++) {
                pres_y = max(0,min(maxold_y, yy + y));
                for(xx=-2;xx<4;xx++) {
                  pres_x = max(0,min(maxold_x, xx + x));
                  if (pixel_map[pres_y][pres_x] < ref_frame)
                    return 0;
                }
              }
            }
        }
        else if (dy == 2)
        {
          for (y = y_pos ; y < y_pos + BLOCK_SIZE ; y++)
            for (x = x_pos ; x < x_pos + BLOCK_SIZE ; x++)
            {
              for(xx=-2;xx<4;xx++) {
                pres_x = max(0,min(maxold_x, xx + x));
                for(yy=-2;yy<4;yy++) {
                  pres_y = max(0,min(maxold_y, yy + y));
                  if (pixel_map[pres_y][pres_x] < ref_frame)
                    return 0;
                }
              }
            }
        }
        else
        {
          for (y = y_pos ; y < y_pos + BLOCK_SIZE ; y++)
          {
            for (x = x_pos ; x < x_pos + BLOCK_SIZE ; x++)
            {
              pres_y = dy == 1 ? y : y + 1;
              pres_y = max(0,min(maxold_y,pres_y));
              
              for(xx=-2;xx<4;xx++) 
              {
                pres_x = max(0,min(maxold_x,xx + x));
                if (pixel_map[pres_y][pres_x] < ref_frame)
                  return 0;
              }
              
              pres_x = dx == 1 ? x : x + 1;
              pres_x = max(0,min(maxold_x,pres_x));
              
              for(yy=-2;yy<4;yy++) 
              {
                pres_y = max(0,min(maxold_y, yy + y));
                if (pixel_map[pres_y][pres_x] < ref_frame)
                  return 0;
              }
            }
          }
        }        
      }
    }
  }
  return 1;
}



/*!
 *************************************************************************************
 * \brief
 *    R-D Cost for an 4x4 Intra block
 *************************************************************************************
 */
double RDCost_for_4x4IntraBlocks (int*    nonzero,
                                  int     b8,
                                  int     b4,
                                  int    ipmode,
                                  double  lambda,
                                  double  min_rdcost,
                                  int mostProbableMode)
{
  double  rdcost;
  int     dummy, x, y, rate;
  int     nonzero_dummy, i, j; /* HYU, 06/01/06 for a better RD mode selection */ // Yan0726
  int64   distortion  = 0;
  int     block_x     = 8*(b8 & 0x01)+4*(b4 & 0x01);
  int     block_y     = 8*(b8 >> 1)+4*(b4 >> 1);
  int     pic_pix_x   = img->pix_x+block_x;
  int     pic_pix_y   = img->pix_y+block_y;
  int     pic_opix_y  = img->opix_y+block_y;
  imgpel  **imgY      = enc_picture->imgY;
  Slice          *currSlice    =  img->currentSlice;
  Macroblock     *currMB       = &img->mb_data[img->current_mb_nr];
  SyntaxElement  *currSE       = &img->MB_SyntaxElements[currMB->currSEnr];
  const int      *partMap      = assignSE2partition[input->partition_mode];
  DataPartition  *dataPart;
  
  //===== perform DCT, Q, IQ, IDCT, Reconstruction =====
  dummy = 0;
  
  *nonzero = dct_luma (block_x, block_y, &dummy, 1); 
  
  //===== get distortion (SSD) of 4x4 block =====
  if(!img->residue_transform_flag)
  {
    for (y=0; y<4; y++)
    {
      for (x=pic_pix_x; x<pic_pix_x+4; x++)
      {
        distortion += img->quad [imgY_org[pic_opix_y+y][x] - imgY[pic_pix_y+y][x]];
      }
    }
  }

//INDEPENDENT_MODE
  if( !IS_INDEPENDENT(input) )	// INDEPENDENT_MODE 2006.07.26
  {
	/* HYU, 06/01/06 for a better mode selection */
//INDEPENDENT_MODE	if (input->ProfileIDC==FREXT_AD444)
	if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
	{
	  for (j=0; j<4; j++)
	  {
		for (i=0; i<4; i++)
		{         
		  img->mpr[block_y+j][block_x+i]  = mprr_c9[ipmode][j][i];
		  img->m7[j][i]                   = imgUV_org[0][img->pix_y+block_y+j][img->pix_x+block_x+i] - mprr_c9[ipmode][j][i];
		}
	  }
	  nonzero_dummy=dct_addluma_4x4(0,block_x,block_y,&dummy,1);
	  for( y = 0; y < 4; y++ )
	  {
		for (x=pic_pix_x; x<pic_pix_x+4; x++)
		{
		  distortion += img->quad [imgUV_org[0][pic_opix_y+y][x] - enc_picture->imgUV[0][pic_pix_y+y][x]];
		}
	  }
 
	  for (j=0; j<4; j++)
	  {
		for (i=0; i<4; i++)
		{ 
/*	HYU, 06/09/06 mprr_c9 should be offset for V		
           img->mpr[block_y+j][block_x+i]  = mprr_c9[ipmode][j][i]; 
           img->m7[j][i]                   = imgUV_org[1][img->pix_y+block_y+j][img->pix_x+block_x+i] - mprr_c9[ipmode][j][i]; */
		  img->mpr[block_y+j][block_x+i]  = mprr_c9[ipmode + 9][j][i]; 
		  img->m7[j][i]                   = imgUV_org[1][img->pix_y+block_y+j][img->pix_x+block_x+i] - mprr_c9[ipmode + 9][j][i];
		}
	  }
	  nonzero_dummy=dct_addluma_4x4(1,block_x,block_y,&dummy,1);
	  for( y = 0; y < 4; y++ )
	  {
		for (x=pic_pix_x; x<pic_pix_x+4; x++)
		{
		  distortion += img->quad [imgUV_org[1][pic_opix_y+y][x] - enc_picture->imgUV[1][pic_pix_y+y][x]];
		}
	  }

	}
  }
//INDEPENDENT_MODE
  
  //===== RATE for INTRA PREDICTION MODE  (SYMBOL MODE MUST BE SET TO UVLC) =====
  currSE->value1 = (mostProbableMode == ipmode) ? -1 : ipmode < mostProbableMode ? ipmode : ipmode-1;
  
  //--- set position and type ---
  currSE->context = 4*b8 + b4;
  currSE->type    = SE_INTRAPREDMODE;
  
  //--- set function pointer ----
  if (input->symbol_mode != UVLC)
	currSE->writing = writeIntraPredMode_CABAC;
  
  //--- choose data partition ---
  dataPart = &(currSlice->partArr[partMap[SE_INTRAPREDMODE]]);
  //--- encode and update rate ---
  if (input->symbol_mode == UVLC)    writeSyntaxElement_Intra4x4PredictionMode(currSE, dataPart);
  else                               dataPart->writeSyntaxElement (currSE, dataPart);
  
  rate = currSE->len;
  currSE++;
  currMB->currSEnr++;
  
  //===== RATE for LUMINANCE COEFFICIENTS =====
  if (input->symbol_mode == UVLC)
  {
    rate  += writeCoeff4x4_CAVLC (LUMA, b8, b4, 0);
//INDEPENDENT_MODE
	if( !IS_INDEPENDENT(input) )	// INDEPENDENT_MODE 2006.07.26
	{
	  /* HYU, 06/01/06 for a better mode selection */
//INDEPENDENT_MODE	  if (input->ProfileIDC==FREXT_AD444)
	  if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
	  {
		rate  += writeCoeff4x4_CAVLC (LUMA_ADD1, b8, b4, 0);
		rate  += writeCoeff4x4_CAVLC (LUMA_ADD2, b8, b4, 0);
	  }
	}
//INDEPENDENT_MODE
  }
  else
  {
	rate  += writeLumaCoeff4x4_CABAC (b8, b4, 1);

//INDEPENDENT_MODE
	if( !IS_INDEPENDENT(input) )	// INDEPENDENT_MODE 2006.07.26
	{
	  /* HYU, 06/01/06 for a better mode selection */
//INDEPENDENT_MODE	  if (input->ProfileIDC==FREXT_AD444)
	  if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
	  {
		rate  += writeAddLumaCoeff4x4_CABAC (0, b8, b4, 1);
		rate  += writeAddLumaCoeff4x4_CABAC (1, b8, b4, 1);
	  }
	}
//INDEPENDENT_MODE
  }
  //reset_coding_state (cs_cm);
  rdcost = (double)distortion + lambda*(double)rate;
  
  if(img->residue_transform_flag)
    return (double)rate;
  else
    return rdcost;
}


// Residue Color Transform
int RDCost_for_4x4Blocks_Chroma (int     b8,
                                 int     b4,
                                 int  chroma)
{
  int     rate=0;
  
  Slice          *currSlice    =  img->currentSlice;
  Macroblock     *currMB       = &img->mb_data[img->current_mb_nr];
  SyntaxElement  *currSE       = &img->MB_SyntaxElements[currMB->currSEnr];
  const int      *partMap      = assignSE2partition[input->partition_mode];
  int uv;
  
  //===== perform DCT, Q, IQ, IDCT, Reconstruction =====
  if(b8 > 7) 
    uv = 1;
  else 
    uv = 0;
  
  cbp_chroma_block_temp[uv][2*((b8-4*(uv+1)) & 0x01)+(b4 & 0x01)][2*((b8-4*(uv+1)) >> 1)+(b4 >> 1)] = dct_chroma4x4 (chroma, b8, b4);
  
  //===== RATE for LUMINANCE COEFFICIENTS =====
  if (input->symbol_mode == UVLC)
  {
    rate  = writeCoeff4x4_CAVLC (CHROMA_AC, b8, b4, ((2*(b8 & 0x01)+ (b4 & 0x01))<<4) | (2*(b8 >> 1)+(b4 >> 1)));
  }
  else
  {
    int * ACLevel, * ACRun;
    int level, run, k;
    DataPartition*  dataPart;
    int*            bitCount  = currMB->bitcounter;
    ACLevel = img->cofAC[b8][b4][0];
    ACRun   = img->cofAC[b8][b4][1];
    
    level=1;
    
    img->subblock_y = b4 >> 1;
    img->subblock_x = b4 & 0x01;
    
    for (k=0; k < 17 && level != 0; k++)
    {
      level = currSE->value1 = ACLevel[k]; // level
      run   = currSE->value2 = ACRun  [k]; // run
      
      if (input->symbol_mode == UVLC)   
        currSE->mapping = levrun_linfo_inter;
      else
		currSE->writing = writeRunLevel_CABAC;
      
      currSE->context     = CHROMA_AC;
      currSE->type        = SE_CHR_AC_INTRA;
      
      img->is_intra_block =  IS_INTRA(currMB);
      img->is_v_block     = uv;
      
      // choose the appropriate data partition
      dataPart = &(currSlice->partArr[partMap[currSE->type]]); 
      dataPart->writeSyntaxElement (currSE, dataPart);
      bitCount[BITS_COEFF_UV_MB] += currSE->len;
      rate                       += currSE->len;
      
      // proceed to next SE
      currSE++;
      currMB->currSEnr++;
    }
  }
  reset_coding_state (cs_cm);
  
  return rate;
}


/*!
 *************************************************************************************
 * \brief
 *    Mode Decision for an 4x4 Intra block
 *************************************************************************************
 */
/* int Mode_Decision_for_4x4IntraBlocks (int  b8,  int  b4,  double  lambda,  int*  min_cost) */
int Mode_Decision_for_4x4IntraBlocks (int  b8,  int  b4,  double  lambda,  int*  min_cost, int* cr_cbp1, int* cr_cbp2) /*lliu, add cbp1 and cbp2, 06/10*/
{
  int     ipmode, best_ipmode = 0, i, j, k, x, y, cost, dummy;
  int     c_nz, nonzero = 0, diff[16];
  imgpel  rec4x4[4][4];
  double  rdcost;
	int     temp_cbp; /*lliu, 06/10*/
  int     block_x     = 8*(b8 & 0x01)+4*(b4 & 0x01);
  int     block_y     = 8*(b8 >> 1)+4*(b4 >> 1);
  int     block_x4    = block_x >> 2;
  int     block_y4    = block_y >> 2;
  int     pic_pix_x   = img->pix_x+block_x;
  int     pic_pix_y   = img->pix_y+block_y;
  int     pic_opix_x   = img->opix_x+block_x;
  int     pic_opix_y   = img->opix_y+block_y;
  int     pic_block_x = pic_pix_x >> 2;
  int     pic_block_y = pic_pix_y >> 2;
  double  min_rdcost  = 1e30;
  
  int left_available, up_available, all_available;
  
  char   upMode;
  char   leftMode;
  int     mostProbableMode;
  
  PixelPos left_block;
  PixelPos top_block;
  
#ifdef BEST_NZ_COEFF
  int best_nz_coeff = 0;
#endif
  // Residue Color Transform
  int residue_R, residue_G, residue_B;
  int rate, temp;
  int64 distortion;
  int c_ipmode = img->mb_data[img->current_mb_nr].c_ipred_mode;
  imgpel rec4x4_c[2][4][4];

  Macroblock *currMB = &img->mb_data[img->current_mb_nr];  
  Boolean lossless_qpprime = ((currMB->qp + img->bitdepth_luma_qp_scale)==0 && img->lossless_qpprime_flag==1);  
  
  getLuma4x4Neighbour(img->current_mb_nr, block_x4, block_y4, -1,  0, &left_block);
  getLuma4x4Neighbour(img->current_mb_nr, block_x4, block_y4,  0, -1, &top_block);
  
  // constrained intra pred
  if (input->UseConstrainedIntraPred)
  {
    left_block.available = left_block.available ? img->intra_block[left_block.mb_addr] : 0;
    top_block.available  = top_block.available  ? img->intra_block[top_block.mb_addr]  : 0;
  }
  
  upMode            =  top_block.available ? img->ipredmode[top_block.pos_y ][top_block.pos_x ] : -1;
  leftMode          = left_block.available ? img->ipredmode[left_block.pos_y][left_block.pos_x] : -1;
  
  mostProbableMode  = (upMode < 0 || leftMode < 0) ? DC_PRED : upMode < leftMode ? upMode : leftMode;
  
  *min_cost = INT_MAX;
  
  //===== INTRA PREDICTION FOR 4x4 BLOCK =====
  intrapred_luma (pic_pix_x, pic_pix_y, &left_available, &up_available, &all_available);
//INDEPENDENT_MODE
  if( !IS_INDEPENDENT(input) )	// INDEPENDENT_MODE 2006.07.26
  {
//INDEPENDENT_MODE	if (input->ProfileIDC==FREXT_AD444 ) 
	if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
	{
		intrapred_addluma_4x4(0, pic_pix_x, pic_pix_y, &left_available,&up_available,&all_available); /*lliu, 07/28*/
		intrapred_addluma_4x4(1, pic_pix_x, pic_pix_y, &left_available,&up_available,&all_available); 
	}
  }
//INDEPENDENT_MODE
  //===== LOOP OVER ALL 4x4 INTRA PREDICTION MODES =====
  for (ipmode=0; ipmode<NO_INTRA_PMODE; ipmode++)
  {
    int available_mode =  (ipmode==DC_PRED) ||
      ((ipmode==VERT_PRED||ipmode==VERT_LEFT_PRED||ipmode==DIAG_DOWN_LEFT_PRED) && up_available ) ||
      ((ipmode==HOR_PRED||ipmode==HOR_UP_PRED) && left_available ) ||(all_available);
    
    if (input->IntraDisableInterOnly==0 || img->type != I_SLICE)
    {
      if (input->Intra4x4ParDisable && (ipmode==VERT_PRED||ipmode==HOR_PRED))
        continue;      
      
      if (input->Intra4x4DiagDisable && (ipmode==DIAG_DOWN_LEFT_PRED||ipmode==DIAG_DOWN_RIGHT_PRED))
        continue;      
      
      if (input->Intra4x4DirDisable && ipmode>=VERT_RIGHT_PRED)
        continue;
    }
    
    if( available_mode)
    {
      if (!input->rdopt)
      {
        for (k=j=0; j<4; j++)
        {
          for (i=0; i<4; i++, k++)   //get residual, KHHan
          {
            res_DPCM[j][i] = diff[k] = imgY_org[pic_opix_y+j][pic_opix_x+i] - img->mprr[ipmode][j][i];  
          }
        }

		  if(lossless_qpprime)  //residual DPCM,  KHHan
		  {
			  if(ipmode==VERT_PRED)
		  {
			 for (j=0; j<4; j++)
				 res_DPCM2[0][j] = res_DPCM[0][j];  //copy first row,  KHHan
			
			  for (j=0; j<4; j++)
				  for (i=1; i<4; i++)  //residual DPCM,  KHHan
					  res_DPCM2[i][j] = res_DPCM[i][j] - res_DPCM[i-1][j];
			  
			  for (k=i=0; i<4; i++)  //copy
			  {
			   for (j=0; j<4; j++, k++)   
  			      diff[k] = res_DPCM2[i][j];
			   }
		  }
		  else if(ipmode==HOR_PRED)
		  {
			  for (j=0; j<4; j++)
				 res_DPCM2[j][0] = res_DPCM[j][0];  //copy first column,  KHHan
			  
			  for(j=0;j<4;j++)
				  for(i=1;i<4;i++)    //residual DPCM,  KHHan
					  res_DPCM2[j][i] = res_DPCM[j][i]-res_DPCM[j][i-1];

			  for (k=i=0; i<4; i++)  //copy
			  {
			   for (j=0; j<4; j++, k++)    
  			      diff[k] = res_DPCM2[i][j];
			   }  
		 }	  
		}

		
        cost  = (ipmode == mostProbableMode) ? 0 : (int)floor(4 * lambda );
        cost += SATD (diff, input->hadamard);
				
//INDEPENDENT_MODE				if (input->ProfileIDC==FREXT_AD444 ) 
				if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
				{
					for (k=j=0; j<4; j++)
					{
						for (i=0; i<4; i++, k++)
						{
							diff[k] = imgUV_org[0][pic_opix_y+j][pic_opix_x+i] - mprr_c9[ipmode][j][i];  /*lliu, 07/28*/  //get residual, KHHan
						}
					}

		  if(lossless_qpprime)  //residual DPCM,  KHHan
		  {
			  if(ipmode==VERT_PRED)
		  {
			 for (j=0; j<4; j++)
				 res_DPCM2[0][j] = res_DPCM[0][j];  //copy first row,  KHHan
			
			  for (j=0; j<4; j++)
				  for (i=1; i<4; i++)  //residual DPCM,  KHHan
					  res_DPCM2[i][j] = res_DPCM[i][j] - res_DPCM[i-1][j];
			  
			  for (k=i=0; i<4; i++)  
			  {
			   for (j=0; j<4; j++, k++)  //copy  
  			      diff[k] = res_DPCM2[i][j];
			   }
		  }
		  else if(ipmode==HOR_PRED)
		  {
			  for (j=0; j<4; j++)
				 res_DPCM2[j][0] = res_DPCM[j][0];  //copy first column,  KHHan
			  
			  for(j=0;j<4;j++)
				  for(i=1;i<4;i++)   //residual DPCM,  KHHan
					  res_DPCM2[j][i] = res_DPCM[j][i]-res_DPCM[j][i-1];

			  for (k=i=0; i<4; i++)  
			  {
			   for (j=0; j<4; j++, k++)  //copy  
  			      diff[k] = res_DPCM2[i][j];
			   }  
		  }	  
		  }

					cost += SATD (diff, input->hadamard);
					for (k=j=0; j<4; j++)
					{
						for (i=0; i<4; i++, k++)
						{
							diff[k] = imgUV_org[1][pic_opix_y+j][pic_opix_x+i] - mprr_c9[9+ipmode][j][i]; //get residual, KHHan
						}
					}

		  if(lossless_qpprime)  //residual DPCM,  KHHan
		  {
			  if(ipmode==VERT_PRED)
		  {
			 for (j=0; j<4; j++)
				 res_DPCM2[0][j] = res_DPCM[0][j];  //copy first row,  KHHan
			
			  for (j=0; j<4; j++)
				  for (i=1; i<4; i++)  //residual DPCM,  KHHan
					  res_DPCM2[i][j] = res_DPCM[i][j] - res_DPCM[i-1][j];
			  
			  for (k=i=0; i<4; i++)  
			  {
			   for (j=0; j<4; j++, k++)  //copy  
  			      diff[k] = res_DPCM2[i][j];
			   }
		  }
		  else if(ipmode==HOR_PRED)
		  {
			  for (j=0; j<4; j++)
				 res_DPCM2[j][0] = res_DPCM[j][0];  //copy first column,  KHHan
			  
			  for(j=0;j<4;j++)
				  for(i=1;i<4;i++)
					  res_DPCM2[j][i] = res_DPCM[j][i]-res_DPCM[j][i-1];

			  for (k=i=0; i<4; i++)  
			  {
			   for (j=0; j<4; j++, k++)  //copy  
  			      diff[k] = res_DPCM2[i][j];
			   }  
		  }	  
		  }
					cost += SATD (diff, input->hadamard);
				}

        if (cost < *min_cost)
        {
          best_ipmode = ipmode;
          *min_cost   = cost;
        }
      }
      else
      {
        // Residue Color Transform
        if(!img->residue_transform_flag)
        {
          // get prediction and prediction error
          for (j=0; j<4; j++)
          {
            memcpy(&img->mpr[block_y+j][block_x], img->mprr[ipmode][j], BLOCK_SIZE * sizeof(imgpel));
            for (i=0; i<4; i++)
            {
              img->m7[j][i] = (int) (imgY_org[pic_opix_y+j][pic_opix_x+i] - img->mprr[ipmode][j][i]);
            }
          }

		  ipmode_DPCM = ipmode;   //KHHan

		  if(lossless_qpprime)  //residual DPCM,  KHHan
		  {
		  if(ipmode==VERT_PRED)
		  {
			   for (j=0; j<4; j++)   //residual DPCM,  KHHan
			   {
                  res_DPCM[1][j] = img->m7[1][j]-img->m7[0][j];
				  res_DPCM[2][j] = img->m7[2][j]-img->m7[1][j];
				  res_DPCM[3][j] = img->m7[3][j]-img->m7[2][j];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
  			  	  img->m7[1][j] = res_DPCM[1][j];
				  img->m7[2][j] = res_DPCM[2][j];
				  img->m7[3][j] = res_DPCM[3][j];
			   }
		  }
		  else if(ipmode==HOR_PRED)
		  {
			  for (j=0; j<4; j++)  //residual DPCM ,  KHHan
			   {
				  res_DPCM[j][1] = img->m7[j][1]-img->m7[j][0];
				  res_DPCM[j][2] = img->m7[j][2]-img->m7[j][1];
				  res_DPCM[j][3] = img->m7[j][3]-img->m7[j][2];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
				  img->m7[j][1] = res_DPCM[j][1];
				  img->m7[j][2] = res_DPCM[j][2];
				  img->m7[j][3] = res_DPCM[j][3];
			   }
		  }
		  }

		  //===== store the coding state =====
          //store_coding_state (cs_cm);
          // get and check rate-distortion cost
          if ((rdcost = RDCost_for_4x4IntraBlocks (&c_nz, b8, b4, ipmode, lambda, min_rdcost, mostProbableMode)) < min_rdcost) 
          {
            //--- set coefficients ---
            memcpy(cofAC4x4[0],img->cofAC[b8][b4][0], 18 * sizeof(int));
            memcpy(cofAC4x4[1],img->cofAC[b8][b4][1], 18 * sizeof(int));

            //--- set reconstruction ---
            for (y=0; y<4; y++)
            {
              memcpy(rec4x4[y],&enc_picture->imgY[pic_pix_y+y][pic_pix_x], BLOCK_SIZE * sizeof(imgpel));
            } 
            //--- flag if dct-coefficients must be coded ---
            nonzero = c_nz;
            
            //--- set best mode update minimum cost ---
            min_rdcost    = rdcost;
            best_ipmode   = ipmode;
#ifdef BEST_NZ_COEFF
            best_nz_coeff = img->nz_coeff [img->current_mb_nr][block_x4][block_y4];
#endif            
            //store_coding_state (cs_ib4);
            if (img->AdaptiveRounding)
            {
              for (j=0; j<4; j++)
                memcpy(&fadjust4x4[block_y+j][block_x],&img->fadjust4x4[1][block_y+j][block_x], BLOCK_SIZE * sizeof(int));
            }
          }

#ifndef RESET_STATE
          reset_coding_state (cs_cm);
#endif
        }
        else 
        {
          for (j=0; j<4; j++)
          {
            for (i=0; i<4; i++)
            {
              residue_B = imgUV_org[0][pic_opix_y+j][pic_opix_x+i] - img->mprr_c[0][c_ipmode][block_y+j][block_x+i];
              residue_G = imgY_org[pic_opix_y+j][pic_opix_x+i] - img->mprr[ipmode][j][i];
              residue_R = imgUV_org[1][pic_opix_y+j][pic_opix_x+i] - img->mprr_c[1][c_ipmode][block_y+j][block_x+i];
              
              /* Foward Residue Transform */
              resTrans_R[j][i] = residue_R-residue_B;
              temp = residue_B+(resTrans_R[j][i]>>1);
              resTrans_B[j][i] = residue_G-temp;
              resTrans_G[j][i] = temp+(resTrans_B[j][i]>>1);
            }
          }
          
          for (j=0; j<4; j++)
          {
            for (i=0; i<4; i++)
            {
              img->m7[j][i]  = resTrans_G[j][i];
            }
          }
          
          store_coding_state (cs_cm);
          rate = (int) RDCost_for_4x4IntraBlocks (&c_nz, b8, b4, ipmode, lambda, min_rdcost, mostProbableMode);
          reset_coding_state (cs_cm);
          
          for (j=0; j<4; j++)
          {
            for (i=0; i<4; i++)
            {
              rec_resG[j][i] = img->m7[j][i];
              img->m7[j][i]  = resTrans_B[j][i];
            }
          }
          //store_coding_state (cs_cm);
          rate += RDCost_for_4x4Blocks_Chroma (b8+4, b4, 0);
          for (j=0; j<4; j++)
          {
            for (i=0; i<4; i++)
            {
              rec_resB[j][i] = img->m7[j][i];
              img->m7[j][i]  = resTrans_R[j][i];
            }
          }
          rate += RDCost_for_4x4Blocks_Chroma (b8+8, b4, 1);
          
          reset_coding_state (cs_cm);
          for (j=0; j<4; j++)
          {
            for (i=0; i<4; i++)
            {
              rec_resR[j][i] = img->m7[j][i];
            }
          }
          
          for (j=0; j<4; j++)
          {
            for (i=0; i<4; i++)
            {
              /* Inverse Residue Transform */
              temp      = rec_resG[j][i]-(rec_resB[j][i]>>1);
              residue_G = rec_resB[j][i]+temp;
              residue_B = temp - (rec_resR[j][i]>>1);
              residue_R = residue_B+rec_resR[j][i];
              enc_picture->imgUV[0][pic_pix_y+j][pic_pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_B+(int)img->mprr_c[0][c_ipmode][block_y+j][block_x+i]));
              enc_picture->imgY[pic_pix_y+j][pic_pix_x+i]     = min(img->max_imgpel_value,max(0,residue_G+(int)img->mprr[ipmode][j][i]));
              enc_picture->imgUV[1][pic_pix_y+j][pic_pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_R+(int)img->mprr_c[1][c_ipmode][block_y+j][block_x+i]));
            }
          } 
          //===== get distortion (SSD) of 4x4 block =====
          distortion = 0;
          for (y=0; y<4; y++)
          {
            for (x=pic_pix_x; x<pic_pix_x+4; x++)
            {
              distortion += img->quad[imgY_org    [pic_pix_y+y][x] - enc_picture->imgY    [pic_pix_y+y][x]];
              distortion += img->quad[imgUV_org[0][pic_pix_y+y][x] - enc_picture->imgUV[0][pic_pix_y+y][x]];
              distortion += img->quad[imgUV_org[1][pic_pix_y+y][x] - enc_picture->imgUV[1][pic_pix_y+y][x]];
            }
          }
          rdcost = (double)distortion + lambda*(double)rate;
          
          if (rdcost < min_rdcost)
          {
            //--- set coefficients ---
            for (j=0; j<2; j++)
            {
              for (i=0; i<18;i++)  
                cofAC4x4[j][i]=img->cofAC[b8][b4][j][i];
              for (i=0; i<18;i++)  
                cofAC4x4_chroma[0][j][i]=img->cofAC[b8+4][b4][j][i];
              for (i=0; i<18;i++)
                cofAC4x4_chroma[1][j][i]=img->cofAC[b8+8][b4][j][i];
            }
            
            for (i=0; i<2; i++)
            { //uv
              dc_level        [i][2*(b8 & 0x01)+(b4 & 0x01)][2*(b8 >> 1)+(b4 >> 1)] = dc_level_temp        [i][2*(b8 & 0x01)+(b4 & 0x01)][2*(b8 >> 1)+(b4 >> 1)];
              cbp_chroma_block[i][2*(b8 & 0x01)+(b4 & 0x01)][2*(b8 >> 1)+(b4 >> 1)] = cbp_chroma_block_temp[i][2*(b8 & 0x01)+(b4 & 0x01)][2*(b8 >> 1)+(b4 >> 1)];
              //--- set reconstruction ---
              for (y=0; y<BLOCK_SIZE; y++)
                memcpy(rec4x4_c[i][y],&enc_picture->imgUV[i][pic_pix_y+y][pic_pix_x], BLOCK_SIZE * sizeof(imgpel)); 
            }
            
            //--- set reconstruction ---
            for (y=0; y<BLOCK_SIZE; y++)
            {
              memcpy(rec4x4[y],&enc_picture->imgY[pic_pix_y+y][pic_pix_x], BLOCK_SIZE * sizeof(imgpel));
            }
            
            //--- flag if dct-coefficients must be coded ---
            nonzero = c_nz;
            
            //--- set best mode update minimum cost ---
            min_rdcost  = rdcost;
            best_ipmode = ipmode;
#ifdef BEST_NZ_COEFF
            best_nz_coeff = img->nz_coeff [img->current_mb_nr][block_x4][block_y4];
#endif
          }
        }
      }
    }
  }
  
#ifdef BEST_NZ_COEFF
  img->nz_coeff [img->current_mb_nr][block_x4][block_y4] = best_nz_coeff;
#endif
  //===== set intra mode prediction =====
  img->ipredmode[pic_block_y][pic_block_x] = best_ipmode;
  img->mb_data[img->current_mb_nr].intra_pred_modes[4*b8+b4] = mostProbableMode == best_ipmode ? -1 : best_ipmode < mostProbableMode ? best_ipmode : best_ipmode-1;
  ipmode_DPCM = best_ipmode;

  if (!input->rdopt)
  {
    // Residue Color Transform
    if(!img->residue_transform_flag)
    {
      // get prediction and prediction error
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          img->mpr[block_y+j][block_x+i]  = img->mprr[best_ipmode][j][i];
          img->m7[j][i]                   = imgY_org[pic_opix_y+j][pic_opix_x+i] - img->mprr[best_ipmode][j][i];
        }
      }

	  	  if(lossless_qpprime)  //residual DPCM  KHHan
		  {
		  if(best_ipmode==VERT_PRED)
		  {
			   for (j=0; j<4; j++)  //residual DPCM 
			   {
                  res_DPCM[1][j] = img->m7[1][j]-img->m7[0][j];
				  res_DPCM[2][j] = img->m7[2][j]-img->m7[1][j];
				  res_DPCM[3][j] = img->m7[3][j]-img->m7[2][j];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
				  img->m7[1][j] = res_DPCM[1][j];
				  img->m7[2][j] = res_DPCM[2][j];
				  img->m7[3][j] = res_DPCM[3][j];
			   }
		  }
		  else if(best_ipmode==HOR_PRED)
		  {
			  for (j=0; j<4; j++)  //residual DPCM 
			   {
				  res_DPCM[j][1] = img->m7[j][1]-img->m7[j][0];
				  res_DPCM[j][2] = img->m7[j][2]-img->m7[j][1];
				  res_DPCM[j][3] = img->m7[j][3]-img->m7[j][2];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
				  img->m7[j][1] = res_DPCM[j][1];
				  img->m7[j][2] = res_DPCM[j][2];
				  img->m7[j][3] = res_DPCM[j][3];
			   }
		  }
		  }

      nonzero = dct_luma (block_x, block_y, &dummy, 1);
	    /*lliu, 07/28 to enable intra_addluma_4x4 with rd=0*/
//INDEPENDENT_MODE		  if (input->ProfileIDC==FREXT_AD444 ) 
		  if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
			{
				for (j=0; j<4; j++)
				{
					for (i=0; i<4; i++)
					{
						img->mpr[block_y+j][block_x+i]  = mprr_c9[best_ipmode][j][i];
						img->m7[j][i]                   = imgUV_org[0][pic_opix_y+j][pic_opix_x+i] - mprr_c9[best_ipmode][j][i];
					}
				}

		  if(lossless_qpprime)  //residual DPCM  KHHan
		  {
		  if(best_ipmode==VERT_PRED)
		  {
			   for (j=0; j<4; j++)   
			   {
				  res_DPCM[1][j] = img->m7[1][j]-img->m7[0][j];
				  res_DPCM[2][j] = img->m7[2][j]-img->m7[1][j];
				  res_DPCM[3][j] = img->m7[3][j]-img->m7[2][j];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
				  img->m7[1][j] = res_DPCM[1][j];
				  img->m7[2][j] = res_DPCM[2][j];
				  img->m7[3][j] = res_DPCM[3][j];
			   }
		  }
		  else if(best_ipmode==HOR_PRED)
		  {
			  for (j=0; j<4; j++)  //residual DPCM 
			   {
				  res_DPCM[j][1] = img->m7[j][1]-img->m7[j][0];
				  res_DPCM[j][2] = img->m7[j][2]-img->m7[j][1];
				  res_DPCM[j][3] = img->m7[j][3]-img->m7[j][2];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
				  img->m7[j][1] = res_DPCM[j][1];
				  img->m7[j][2] = res_DPCM[j][2];
				  img->m7[j][3] = res_DPCM[j][3];
			   }
		  }
		  }
				temp_cbp = dct_addluma_4x4(0,block_x,block_y,&dummy,1);
				*cr_cbp1 = temp_cbp;
				for (j=0; j<4; j++)
				{
					for (i=0; i<4; i++)
					{
						img->mpr[block_y+j][block_x+i]  = mprr_c9[9+best_ipmode][j][i];
						img->m7[j][i]                   = imgUV_org[1][pic_opix_y+j][pic_opix_x+i] - mprr_c9[9+best_ipmode][j][i];
					}
				}
				
		  if(lossless_qpprime)  //residual DPCM  KHHan
		  {
		  if(best_ipmode==VERT_PRED)
		  {
			   for (j=0; j<4; j++)  
			   {
				  res_DPCM[1][j] = img->m7[1][j]-img->m7[0][j];
				  res_DPCM[2][j] = img->m7[2][j]-img->m7[1][j];
				  res_DPCM[3][j] = img->m7[3][j]-img->m7[2][j];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
				  img->m7[1][j] = res_DPCM[1][j];
				  img->m7[2][j] = res_DPCM[2][j];
				  img->m7[3][j] = res_DPCM[3][j];
			   }
		  }
		  else if(best_ipmode==HOR_PRED)
		  {
			  for (j=0; j<4; j++)  //residual DPCM 
			   {
				  res_DPCM[j][1] = img->m7[j][1]-img->m7[j][0];
				  res_DPCM[j][2] = img->m7[j][2]-img->m7[j][1];
				  res_DPCM[j][3] = img->m7[j][3]-img->m7[j][2];
			   }
			   for (j=0; j<4; j++)  //copy 
			   {
				  img->m7[j][1] = res_DPCM[j][1];
				  img->m7[j][2] = res_DPCM[j][2];
				  img->m7[j][3] = res_DPCM[j][3];
			   }
		  }
		  }
				temp_cbp = dct_addluma_4x4(1,block_x,block_y,&dummy,1);
				*cr_cbp2 = temp_cbp;
			}
    } 
    else 
    {
      int y_pos = 2*(b8 & 0x01)+(b4 & 0x01);
      int x_pos = 2*(b8 >> 1)+(b4 >> 1);
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          residue_B = imgUV_org[0][pic_opix_y+j][pic_opix_x+i] - img->mprr_c[0][c_ipmode][block_y+j][block_x+i];
          residue_G = imgY_org[pic_opix_y+j][pic_opix_x+i] - img->mprr[best_ipmode][j][i];
          residue_R = imgUV_org[1][pic_opix_y+j][pic_opix_x+i] - img->mprr_c[1][c_ipmode][block_y+j][block_x+i];
          
          /* Forward Residue Transform */
          resTrans_R[j][i] = residue_R-residue_B;
          temp = residue_B+(resTrans_R[j][i]>>1);
          resTrans_B[j][i] = residue_G-temp;
          resTrans_G[j][i] = temp+(resTrans_B[j][i]>>1);
        }
      }
      
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          img->m7[j][i]  = resTrans_G[j][i];
        }
      }
      nonzero = dct_luma (block_x, block_y, &dummy, 1);
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          rec_resG[j][i] = img->m7[j][i];
          img->m7[j][i]  = resTrans_B[j][i];
        }
      }
      cbp_chroma_block[0][y_pos][x_pos] = dct_chroma4x4 (0, b8+4, b4);
      dc_level        [0][y_pos][x_pos] = dc_level_temp[0][y_pos][x_pos];
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          rec_resB[j][i] = img->m7[j][i];
          img->m7[j][i]  = resTrans_R[j][i];
        }
      }
      cbp_chroma_block[1][y_pos][x_pos] = dct_chroma4x4 (1, b8+8, b4);
      dc_level        [1][y_pos][x_pos] = dc_level_temp[1][y_pos][x_pos];
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          rec_resR[j][i] = img->m7[j][i];
        }
      }
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          /* Inverse Residue Transform */
          temp      = rec_resG[j][i]-(rec_resB[j][i]>>1);
          residue_G = rec_resB[j][i]+temp;
          residue_B = temp - (rec_resR[j][i]>>1);
          residue_R = residue_B+rec_resR[j][i];
          enc_picture->imgUV[0][pic_pix_y+j][pic_pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_B+(int)img->mprr_c[0][c_ipmode][block_y+j][block_x+i]));
          enc_picture->imgY[pic_pix_y+j][pic_pix_x+i]     = min(img->max_imgpel_value,max(0,residue_G+(int)img->mprr[best_ipmode][j][i]));
          enc_picture->imgUV[1][pic_pix_y+j][pic_pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_R+(int)img->mprr_c[1][c_ipmode][block_y+j][block_x+i]));
        }
      }
    }
  }
  else
  {
		/*lliu, 06/06 to enable addluma_4x4 with rd=1*/
    	/* start: modified by Melco, 2005/12/19 (for separate mode) */
//INDEPENDENT_MODE
	if( !IS_INDEPENDENT(input) )
	{
//INDEPENDENT_MODE	  if (input->ProfileIDC==FREXT_AD444 ) 
	  if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
	  {
		for (j=0; j<4; j++)
		{
		  for (i=0; i<4; i++)
		  {
			img->mpr[block_y+j][block_x+i]  = mprr_c9[best_ipmode][j][i];
			img->m7[j][i]                   = imgUV_org[0][img->pix_y+block_y+j][img->pix_x+block_x+i] - mprr_c9[best_ipmode][j][i];
		  }
		}

		if(lossless_qpprime)  //residual DPCM,  KHHan
		{
		  if(ipmode_DPCM==VERT_PRED)
		  {
			for (j=0; j<4; j++)  //residual DPCM, KHHan
			{
			  res_DPCM[1][j] = img->m7[1][j]-img->m7[0][j];
			  res_DPCM[2][j] = img->m7[2][j]-img->m7[1][j];
			  res_DPCM[3][j] = img->m7[3][j]-img->m7[2][j];
			}
			for (j=0; j<4; j++)  //copy 
			{
			  img->m7[1][j] = res_DPCM[1][j];
			  img->m7[2][j] = res_DPCM[2][j];
			  img->m7[3][j] = res_DPCM[3][j];
			}
		  }
		  else if(ipmode_DPCM==HOR_PRED)
		  {
			for (j=0; j<4; j++)  //residual DPCM,  KHHan 
			{
			  res_DPCM[j][1] = img->m7[j][1]-img->m7[j][0];
			  res_DPCM[j][2] = img->m7[j][2]-img->m7[j][1];
			  res_DPCM[j][3] = img->m7[j][3]-img->m7[j][2];
			}
			for (j=0; j<4; j++)  //copy 
			{
			  img->m7[j][1] = res_DPCM[j][1];
			  img->m7[j][2] = res_DPCM[j][2];
			  img->m7[j][3] = res_DPCM[j][3];
			}
		  }
		}
			
		temp_cbp = dct_addluma_4x4(0,block_x,block_y,&dummy,1);
		*cr_cbp1 = temp_cbp;
		for (j=0; j<4; j++)
		{
		  for (i=0; i<4; i++)
		  {
			img->mpr[block_y+j][block_x+i]  = mprr_c9[9+best_ipmode][j][i];
			img->m7[j][i]                   = imgUV_org[1][img->pix_y+block_y+j][img->pix_x+block_x+i] - mprr_c9[9+best_ipmode][j][i];
		  }
		}

		if(lossless_qpprime)  //residual DPCM,  KHHan
		{
		  if(ipmode_DPCM==VERT_PRED)
		  {
			for (j=0; j<4; j++)   //residual DPCM,  KHHan
			{
			  res_DPCM[1][j] = img->m7[1][j]-img->m7[0][j];
			  res_DPCM[2][j] = img->m7[2][j]-img->m7[1][j];
			  res_DPCM[3][j] = img->m7[3][j]-img->m7[2][j];
			}
			for (j=0; j<4; j++)  //copy 
			{
			  img->m7[1][j] = res_DPCM[1][j];
			  img->m7[2][j] = res_DPCM[2][j];
			  img->m7[3][j] = res_DPCM[3][j];
			}
		  }
		  else if(ipmode_DPCM==HOR_PRED)
		  {
			for (j=0; j<4; j++)  //residual DPCM,  KHHan
			{
			  res_DPCM[j][1] = img->m7[j][1]-img->m7[j][0];
			  res_DPCM[j][2] = img->m7[j][2]-img->m7[j][1];
			  res_DPCM[j][3] = img->m7[j][3]-img->m7[j][2];
			}
			for (j=0; j<4; j++)  //copy 
			{
			  img->m7[j][1] = res_DPCM[j][1];
			  img->m7[j][2] = res_DPCM[j][2];
			  img->m7[j][3] = res_DPCM[j][3];
			}
		  }
		}

		temp_cbp = dct_addluma_4x4(1,block_x,block_y,&dummy,1);
		*cr_cbp2 = temp_cbp;
	  }
	}
//INDEPENDENT_MODE
    	/* end: modified by Melco, 2005/12/19 */
	//===== restore coefficients =====
    for (j=0; j<2; j++)
    {
      memcpy (img->cofAC[b8][b4][j],cofAC4x4[j], 18 * sizeof(int)); 
    } 

    // Residue Color Transform
    if(img->residue_transform_flag)
    {
      for (j=0; j<2; j++)
      {
        memcpy (img->cofAC[b8+4][b4][j],cofAC4x4_chroma[0][j], 18 * sizeof(int));            
        memcpy (img->cofAC[b8+8][b4][j],cofAC4x4_chroma[1][j], 18 * sizeof(int));            
      }
    }
    
    //===== restore reconstruction and prediction (needed if single coeffs are removed) =====
    for (y=0; y<BLOCK_SIZE; y++)
    {
      memcpy (&enc_picture->imgY[pic_pix_y+y][pic_pix_x],rec4x4[y],    BLOCK_SIZE * sizeof(imgpel));
      memcpy (&img->mpr[block_y+y][block_x],img->mprr[best_ipmode][y], BLOCK_SIZE * sizeof(imgpel));
    }
    
    if (img->AdaptiveRounding)
    {
      for (j=0; j<BLOCK_SIZE; j++)
        memcpy (&img->fadjust4x4[1][block_y+j][block_x],&fadjust4x4[block_y+j][block_x], BLOCK_SIZE * sizeof(int));      
    }
    
    // Residue Color Transform
    if(img->residue_transform_flag)
    {
      for (i=0; i<2; i++)
      { //uv
        //--- set reconstruction ---
        for (y=0; y<4; y++)
          memcpy(&enc_picture->imgUV[i][pic_pix_y+y][pic_pix_x],rec4x4_c[i][y], BLOCK_SIZE * sizeof(imgpel));
      }
    }    
  }  
  return nonzero;
}


/*!
 *************************************************************************************
 * \brief
 *    Mode Decision for an 8x8 Intra block
 *************************************************************************************
 */
/* int Mode_Decision_for_8x8IntraBlocks(int b8,double lambda,int *cost) */
int Mode_Decision_for_8x8IntraBlocks(int b8,double lambda,int *cost, int *nonzero1, int *nonzero2) /*lliu,add nonzero1 and nonzero2, 06/10*/
{
  int  nonzero=0, b4;
  int  cost4x4, cr_cbp1=0,cr_cbp2=0;
  
  *cost = (int)floor(6.0 * lambda + 0.4999);
  *nonzero1 = 0;  /*lliu,06/19*/
  *nonzero2 = 0;
  for (b4=0; b4<4; b4++)
  {
    if (Mode_Decision_for_4x4IntraBlocks (b8, b4, lambda, &cost4x4, &cr_cbp1, &cr_cbp2)) 
    {
      nonzero        = 1;
    }
    *cost += cost4x4;
    /*lliu,06/10*/
		if (cr_cbp1)
			*nonzero1 = 1;
		if (cr_cbp2) 
			*nonzero2 = 1;
  }
#ifdef RESET_STATE
  reset_coding_state (cs_cm);
#endif
  
  return nonzero;
}

/*!
 *************************************************************************************
 * \brief
 *    4x4 Intra mode decision for an macroblock
 *************************************************************************************
 */
int Mode_Decision_for_Intra4x4Macroblock (double lambda,  int* cost)
{
  int  cbp=0, b8, cost8x8;
	int nonzero1 = 0;
	int nonzero2 = 0;
  
	cbp1 = cbp2 = 0;

  for (*cost=0, b8=0; b8<4; b8++)
  {
    if (Mode_Decision_for_8x8IntraBlocks (b8, lambda, &cost8x8, &nonzero1, &nonzero2))
    {
      cbp |= (1<<b8);
    }
    *cost += cost8x8;
		if (nonzero1)

/* //zli
		cbp1 |= (1<<b8);
*/
// zli: start
		{
			cbp1 |= (1<<b8);
			cbp |= cbp1;
			cbp1 = cbp;
			cbp2 = cbp;
		}
// zli: end

		if (nonzero2)
/* //zli
		cbp2 |= (1<<b8);
*/
// zli: start
		{
			cbp2 |= (1<<b8);
			cbp |= cbp2;
			cbp1 = cbp;
			cbp2 = cbp;
		}
// zli: end
  }
  
  return cbp;
}


/*!
 *************************************************************************************
 * \brief
 *    R-D Cost for an 8x8 Partition
 *************************************************************************************
 */
double RDCost_for_8x8blocks (int*    cnt_nonz,   // --> number of nonzero coefficients
                             int64*  cbp_blk,    // --> cbp blk
                             double  lambda,     // <-- lagrange multiplier
                             int     block,      // <-- 8x8 block number
                             int     mode,       // <-- partitioning mode
                             short   pdir,       // <-- prediction direction
                             short   ref,        // <-- reference frame
                             short   bwd_ref)    // <-- abp type
{
  int  i, j, k;
  int  rate=0;
  int64 distortion=0;
  int  dummy, mrate;
  int  fw_mode, bw_mode;
  int  cbp     = 0;
  int  pax     = 8*(block & 0x01);
  int  pay     = 8*(block >> 1);
  int  i0      = pax >> 2;
  int  j0      = pay >> 2;
  int  bframe  = (img->type==B_SLICE);
  int  direct  = (bframe && mode==0);
  int  b8value = B8Mode2Value (mode, pdir);
  
  Macroblock    *currMB    = &img->mb_data[img->current_mb_nr];
  SyntaxElement *currSE    = &img->MB_SyntaxElements[currMB->currSEnr];
  Slice         *currSlice = img->currentSlice;
  DataPartition *dataPart;
  const int     *partMap   = assignSE2partition[input->partition_mode];
  
  EncodingEnvironmentPtr eep_dp;
  
  // Residue Color Transform
  int residue_R, residue_G, residue_B, temp, b4;
  int b4_x, b4_y;
  
  //=====
  //=====  GET COEFFICIENTS, RECONSTRUCTIONS, CBP
  //=====
  currMB->bi_pred_me=0;
  
  if (direct)
  {
    if (direct_pdir[img->block_y+j0][img->block_x+i0]<0) // mode not allowed
      return (1e20);
    else
      *cnt_nonz = LumaResidualCoding8x8 (&cbp, cbp_blk, block, direct_pdir[img->block_y+j0][img->block_x+i0], 0, 0, 
                  (short)max(0,direct_ref_idx[LIST_0][img->block_y+j0][img->block_x+i0]), direct_ref_idx[LIST_1][img->block_y+j0][img->block_x+i0]);
  }
  else
  {
    fw_mode   = (pdir==0||pdir==2 ? mode : 0);
    bw_mode   = (pdir==1||pdir==2 ? mode : 0);
    *cnt_nonz = LumaResidualCoding8x8 (&cbp, cbp_blk, block, pdir, fw_mode, bw_mode, ref, bwd_ref);
  }
  
  // Residue Color Transform
  if(img->residue_transform_flag)
  {
    for(b4 = 0; b4 < 4; b4++)
    {
      b4_x = pax+(b4 & 0x01)*4;
      b4_y = pay+(b4 >> 1  )*4;
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
          img->m7[j][i] = resTrans_B[j+b4_y][i+b4_x];
      }
      rate += RDCost_for_4x4Blocks_Chroma (block+4, b4, 0);
      
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          rec_resB[j+b4_y][i+b4_x] = img->m7[j][i];
          img->m7[j][i]  = resTrans_R[j+b4_y][i+b4_x];
        }
      }
      rate += RDCost_for_4x4Blocks_Chroma (block+8, b4, 1);
      
      for (j=0; j<4; j++)
      {
        for (i=0; i<4; i++)
        {
          rec_resR[j+b4_y][i+b4_x] = img->m7[j][i];
        }
      }
    }
    
    /* Inverse Residue Transform */
    for (j=pay; j<pay+8; j++)
      for (i=pax; i<pax+8; i++)
      {
        /* YCoCg-R */
        temp      = rec_resG[j][i]-(rec_resB[j][i]>>1);
        residue_G = rec_resB[j][i]+temp;
        residue_B = temp - (rec_resR[j][i]>>1);
        residue_R = residue_B+rec_resR[j][i];
        
        enc_picture->imgUV[0][img->pix_y+j][img->pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_B+mprRGB[1][j][i]));
        enc_picture->imgY[img->pix_y+j][img->pix_x+i]     = min(img->max_imgpel_value,max(0,residue_G+mprRGB[0][j][i]));
        enc_picture->imgUV[1][img->pix_y+j][img->pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_R+mprRGB[2][j][i]));
      }
  }
  
  //===== get residue =====
  if (input->rdopt==3 && img->type!=B_SLICE)
  {
    // We need the reconstructed prediction residue for the simulated decoders.
    compute_residue_b8block (block, -1);
  }
  
  //=====
  //=====   GET DISTORTION
  //=====
  if (input->rdopt==3 && img->type!=B_SLICE)
  {
    for (k=0; k<input->NoOfDecoders ;k++)
    {
      decode_one_b8block (k, P8x8, block, mode, ref);
      for (j=img->opix_y+pay; j<img->opix_y+pay+8; j++)
        for (i=img->opix_x+pax; i<img->opix_x+pax+8; i++)
        {
          distortion += img->quad[imgY_org[j][i] - decs->decY[k][j][i]];
        }
    }
    distortion /= input->NoOfDecoders;
  }
  else
  {
    for (j=pay; j<pay+8; j++)
      for (i=img->pix_x+pax; i<img->pix_x+pax+8; i++)
      {
        distortion += img->quad [imgY_org[img->opix_y+j][i] - enc_picture->imgY[img->pix_y+j][i]];
        // Residue Color Transform
        if(img->residue_transform_flag)
        {
          distortion += img->quad [imgUV_org[0][img->opix_y+j][i] - enc_picture->imgUV[0][img->pix_y+j][i]];
          distortion += img->quad [imgUV_org[1][img->opix_y+j][i] - enc_picture->imgUV[1][img->pix_y+j][i]];
        }
      }
  }
  
  //=====
  //=====   GET RATE
  //=====
  //----- block 8x8 mode -----
  if (input->symbol_mode == UVLC)
  {
    ue_linfo (b8value, dummy, &mrate, &dummy);
    rate += mrate;
  }
  else
  {
    currSE->value1  = b8value;
	currSE->writing = writeB8_typeInfo_CABAC;

    currSE->type    = SE_MBTYPE;
    dataPart = &(currSlice->partArr[partMap[currSE->type]]);
    dataPart->writeSyntaxElement (currSE, dataPart);
    rate += currSE->len;
    currSE++;
    currMB->currSEnr++;
  }
  
  //----- motion information -----
  if (!direct)
  {
    if ((img->num_ref_idx_l0_active > 1 ) && (pdir==0 || pdir==2))
	  rate  += writeReferenceFrame (mode, i0, j0, 1, ref);

    if(img->num_ref_idx_l1_active > 1 && img->type== B_SLICE)
    {
      if (pdir==1 || pdir==2)
      {
		rate  += writeReferenceFrame (mode, i0, j0, 0, bwd_ref);
      }
    }
    
    if (pdir==0 || pdir==2)
    {
	  rate  += writeMotionVector8x8 (i0, j0, i0+2, j0+2, ref,LIST_0, mode);
    }
    if (pdir==1 || pdir==2)
    {
	  rate  += writeMotionVector8x8 (i0, j0, i0+2, j0+2, bwd_ref, LIST_1, mode);
    }
  }
  
  //----- coded block pattern (for CABAC only) -----
  if (input->symbol_mode == CABAC)
  {
    dataPart = &(currSlice->partArr[partMap[SE_CBP_INTER]]);
    eep_dp   = &(dataPart->ee_cabac);
    mrate    = arienco_bits_written (eep_dp);

	writeCBP_BIT_CABAC (block, ((*cnt_nonz>0)?1:0), cbp8x8, currMB, 1, eep_dp);

    mrate    = arienco_bits_written (eep_dp) - mrate;
    rate    += mrate;
  }
  
  //----- luminance coefficients -----
  if (*cnt_nonz)
  {
	rate += writeLumaCoeff8x8 (block, mode, currMB->luma_transform_size_8x8_flag);
  }
  
  return (double)distortion + lambda * (double)rate;
}


/*!
 *************************************************************************************
 * \brief
 *    Gets mode offset for intra16x16 mode
 *************************************************************************************
 */
int I16Offset (int cbp, int i16mode)
{
  return (cbp&15?13:1) + i16mode + ((cbp&0x30)>>2);
}


/*!
 *************************************************************************************
 * \brief
 *    Sets modes and reference frames for a macroblock
 *************************************************************************************
 */
void SetModesAndRefframeForBlocks (int mode)
{
  int i,j,k,l;
  Macroblock *currMB = &img->mb_data[img->current_mb_nr];
  int  bframe  = (img->type==B_SLICE);
  int  block_x, block_y;
  int  cur_ref[2];  
  
  //--- macroblock type ---
  currMB->mb_type = mode;    
  currMB->bi_pred_me= (mode == 1 ? img->bi_pred_me[mode] : 0);  
  
  //--- block 8x8 mode and prediction direction ---
  switch (mode)
  {
  case 0:
    for(i=0;i<4;i++)
    {
      currMB->b8mode[i] = 0;
      currMB->b8pdir[i] = (bframe ? direct_pdir[img->block_y + (i >> 1)*2][img->block_x + (i & 0x01)*2] : 0);
    }
    break;
  case 1:
  case 2:
  case 3:
    for(i=0;i<4;i++)
    {
      currMB->b8mode[i] = mode;
      currMB->b8pdir[i] = best8x8pdir[mode][i];
    }
    break;
  case P8x8:
    for(i=0;i<4;i++)
    {
      currMB->b8mode[i]   = best8x8mode[i];
      currMB->b8pdir[i]   = best8x8pdir[mode][i];
    }
    break;
  case I4MB:
    for(i=0;i<4;i++)
    {
      currMB->b8mode[i] = IBLOCK; 
      currMB->b8pdir[i] = -1;
    }
    break;
  case I16MB:
    for(i=0;i<4;i++)
    {
      currMB->b8mode[i] =  0;
      currMB->b8pdir[i] = -1;
    }
    break;
  case I8MB:
    for(i=0;i<4;i++)
    {
      currMB->b8mode[i] = I8MB;
      currMB->b8pdir[i] = -1;
    }
    //switch to 8x8 transform
    currMB->luma_transform_size_8x8_flag = 1;
    break;
  case IPCM:
    for(i=0;i<4;i++)
    {
      currMB->b8mode[i] = IPCM;
      currMB->b8pdir[i] = -1;
    }
    currMB->luma_transform_size_8x8_flag = 0;
    break;
  default:
    printf ("Unsupported mode in SetModesAndRefframeForBlocks!\n");
    exit (1);
  }
  
#define IS_FW ((best8x8pdir[mode][k]==0 || best8x8pdir[mode][k]==2) && (mode!=P8x8 || best8x8mode[k]!=0 || !bframe))
#define IS_BW ((best8x8pdir[mode][k]==1 || best8x8pdir[mode][k]==2) && (mode!=P8x8 || best8x8mode[k]!=0))
  //--- reference frame arrays ---
  if (mode==0 || mode==I4MB || mode==I16MB || mode==I8MB)
  {
    if (bframe)
    {
      if (!mode)
      {
        for (j = img->block_y; j < img->block_y + 4; j++)
        {
          memcpy(&enc_picture->ref_idx[LIST_0][j][img->block_x],&direct_ref_idx[LIST_0][j][img->block_x], 4 * sizeof(char));
          memcpy(&enc_picture->ref_idx[LIST_1][j][img->block_x],&direct_ref_idx[LIST_1][j][img->block_x], 4 * sizeof(char));
        }
      }
      else
      {
        for (j = img->block_y; j < img->block_y + 4; j++)
        {
          memset(&enc_picture->ref_idx[LIST_0][j][img->block_x],-1, 4 * sizeof(char));
          memset(&enc_picture->ref_idx[LIST_1][j][img->block_x],-1, 4 * sizeof(char));
        }
      }
    }
    else
    {
      if (!mode)
      {
        for (j = img->block_y; j < img->block_y + 4; j++)
          memset(&enc_picture->ref_idx[LIST_0][j][img->block_x],0, 4 * sizeof(char));
      }
      else
      {
        for (j = img->block_y; j < img->block_y + 4; j++)
          memset(&enc_picture->ref_idx[LIST_0][j][img->block_x],-1, 4 * sizeof(char));
      }
    }
  }
  else
  {
    if (bframe)
    {
      for (j=0;j<4;j++)
      {
        block_y = img->block_y + j;
        for (i=0;i<4;i++)
        {
          block_x = img->block_x + i;
          k = 2*(j >> 1) + (i >> 1);
          l = 2*(j & 0x01) + (i & 0x01);
          
          if(mode == P8x8 && best8x8mode[k]==0)
          {
            enc_picture->ref_idx[LIST_0][block_y][block_x] = direct_ref_idx[LIST_0][block_y][block_x];
            enc_picture->ref_idx[LIST_1][block_y][block_x] = direct_ref_idx[LIST_1][block_y][block_x];
          }
          else if (mode ==1 && currMB->bi_pred_me && IS_FW && IS_BW)
          {
            enc_picture->ref_idx[LIST_0][block_y][block_x] = 0;
            enc_picture->ref_idx[LIST_1][block_y][block_x] = 0;
          }
          else
          {
            enc_picture->ref_idx[LIST_0][block_y][block_x] = (IS_FW ? best8x8fwref[mode][k] : -1);
            enc_picture->ref_idx[LIST_1][block_y][block_x] = (IS_BW ? best8x8bwref[mode][k] : -1);
          }
        }
      }
    }
    else
    {
      for (j=0;j<4;j++)
      {
        block_y = img->block_y + j;
        for (i=0;i<4;i++)
        {
          block_x = img->block_x + i;
          k = 2*(j >> 1) + (i >> 1);
          l = 2*(j & 0x01) + (i & 0x01);
          enc_picture->ref_idx[LIST_0][block_y][block_x] = (IS_FW ? best8x8fwref[mode][k] : -1);
        }
      }
    }
  }
  
  if (bframe)
  {

    for (j = img->block_y; j < img->block_y + 4; j++)
      for (i = img->block_x; i < img->block_x + 4;i++)
      {
        cur_ref[LIST_0] = (int) enc_picture->ref_idx[LIST_0][j][i];
        cur_ref[LIST_1] = (int) enc_picture->ref_idx[LIST_1][j][i];
        
        enc_picture->ref_pic_id [LIST_0][j][i] = (cur_ref[LIST_0]>=0 
          ? enc_picture->ref_pic_num[LIST_0 + currMB->list_offset][cur_ref[LIST_0]]
          : -1);
        enc_picture->ref_pic_id [LIST_1][j][i] = (cur_ref[LIST_1]>=0 
          ? enc_picture->ref_pic_num[LIST_1 + currMB->list_offset][cur_ref[LIST_1]]
          : -1);
      }
  }
  else
  {  
    for (j = img->block_y; j < img->block_y + 4; j++)
      for (i = img->block_x; i < img->block_x + 4;i++)
      {
        cur_ref[LIST_0] = (int) enc_picture->ref_idx[LIST_0][j][i];
        enc_picture->ref_pic_id [LIST_0][j][i] = (cur_ref[LIST_0]>=0 
          ? enc_picture->ref_pic_num[LIST_0 + currMB->list_offset][cur_ref[LIST_0]]
          : -1);
      }
  }
  
#undef IS_FW
#undef IS_BW
}


/*!
 *************************************************************************************
 * \brief
 *    Intra 16x16 mode decision
 *************************************************************************************
 */
void
Intra16x16_Mode_Decision (Macroblock* currMB, int* i16mode)
{
  // Residue Color Transform
  int residue_R, residue_G, residue_B;
  int c_ipmode = img->mb_data[img->current_mb_nr].c_ipred_mode;
  int i, j, temp;
  int pic_pix_x   = img->pix_x;
  int pic_pix_y   = img->pix_y;
  pel_t   **imgY_orig  = imgY_org;
  pel_t   ***imgUV_orig  = imgUV_org;
  int cr_cbp;
  
  intrapred_luma_16x16 ();   /* make intra pred for all 4 new modes */
  
  if(!img->residue_transform_flag)
    find_sad_16x16 (i16mode);   /* get best new intra mode */
  
  // Residue Color Transform
  if(img->residue_transform_flag)
  {
    for (j=0; j < MB_BLOCK_SIZE; j++)
      for (i=0; i < MB_BLOCK_SIZE; i++)
      {
        residue_B = imgUV_orig[0][pic_pix_y+j][pic_pix_x+i] - img->mprr_c[0][c_ipmode][j][i];
        residue_G = imgY_orig[pic_pix_y+j][pic_pix_x+i] - img->mprr_2[*i16mode][j][i];
        residue_R = imgUV_orig[1][pic_pix_y+j][pic_pix_x+i] - img->mprr_c[1][c_ipmode][j][i];
        
        /* Forward Residue Transform */
        resTrans_R[j][i] = residue_R-residue_B;
        temp = residue_B+(resTrans_R[j][i]>>1);
        resTrans_B[j][i] = residue_G-temp;
        resTrans_G[j][i] = temp+(resTrans_B[j][i]>>1);
        
        img->m7[j][i]  = resTrans_G[j][i];
      }
  }
  
  currMB->cbp = dct_luma_16x16 (*i16mode); 
  
  // Residue Color Transform
  if(img->residue_transform_flag)
  {
    for (j=0; j < MB_BLOCK_SIZE; j++)
    {
      for (i=0; i < MB_BLOCK_SIZE; i++)
      {
        rec_resG[j][i] = img->m7[j][i];
        img->m7[j][i]  = resTrans_B[j][i];
      }
    }
    cr_cbp = dct_chroma(0, 0);
    
    for (j=0; j < MB_BLOCK_SIZE; j++)
    {
      for (i=0; i < MB_BLOCK_SIZE; i++)
      {
        rec_resB[j][i] = img->m7[j][i];
        img->m7[j][i]  = resTrans_R[j][i];
      }
    }
    cr_cbp = dct_chroma(1, cr_cbp);
    
    for (j = 0; j < MB_BLOCK_SIZE; j++)
    {
      for (i = 0; i < MB_BLOCK_SIZE; i++)
        
        rec_resR[j][i] = img->m7[j][i];
    }
    
    currMB->cbp += (cr_cbp<<4);
    
    /* Inverse Residue Transform */
    for (j = 0; j < MB_BLOCK_SIZE; j++)
    {
      for (i = 0; i < MB_BLOCK_SIZE; i++)
      {
        temp      = rec_resG[j][i]-(rec_resB[j][i]>>1);
        residue_G = rec_resB[j][i]+temp;
        residue_B = temp - (rec_resR[j][i]>>1);
        residue_R = residue_B+rec_resR[j][i];
        
        enc_picture->imgUV[0][pic_pix_y+j][pic_pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_B+(int)img->mprr_c[0][c_ipmode][j][i]));
        enc_picture->imgY[pic_pix_y+j][pic_pix_x+i]     = min(img->max_imgpel_value,max(0,residue_G+(int)img->mprr_2[*i16mode][j][i]));
        enc_picture->imgUV[1][pic_pix_y+j][pic_pix_x+i] = min(img->max_imgpel_value_uv,max(0,residue_R+(int)img->mprr_c[1][c_ipmode][j][i]));
      }
    }
  }
}



/*!
 *************************************************************************************
 * \brief
 *    Sets Coefficients and reconstruction for an 8x8 block
 *************************************************************************************
 */
void SetCoeffAndReconstruction8x8 (Macroblock* currMB)
{
  int block, k, j, i;
  int cur_ref[2];

  //============= MIXED TRANSFORM SIZES FOR 8x8 PARTITION ==============
  //--------------------------------------------------------------------
  int l;
  int bframe = img->type==B_SLICE; 

  if (currMB->luma_transform_size_8x8_flag)
  {
   
    //============= set mode and ref. frames ==============
    for(i = 0;i<4;i++)
    {
      currMB->b8mode[i]   = tr8x8.part8x8mode[i];
      currMB->b8pdir[i]   = tr8x8.part8x8pdir[i];
    }
    
    if (bframe)
    {
      for (j = 0;j<4;j++)
        for (i = 0;i<4;i++)
        {
          k = 2*(j >> 1)+(i >> 1);
          l = 2*(j & 0x01)+(i & 0x01);
          enc_picture->ref_idx[LIST_0][img->block_y+j][img->block_x+i] = tr8x8.part8x8fwref[k];
          enc_picture->ref_idx[LIST_1][img->block_y+j][img->block_x+i] = tr8x8.part8x8bwref[k];
        }
    }
    else
    {
      for (j = 0;j<4;j++)
        for (i = 0;i<4;i++)
        {
          k = 2*(j >> 1)+(i >> 1);
          l = 2*(j & 0x01)+(i & 0x01);
          enc_picture->ref_idx[LIST_0][img->block_y+j][img->block_x+i] = tr8x8.part8x8fwref[k];
        }
    }


    for (j = img->block_y;j<img->block_y + BLOCK_MULTIPLE;j++)
    {
      for (i = img->block_x;i<img->block_x + BLOCK_MULTIPLE;i++)
      {
        cur_ref[LIST_0] = (int) enc_picture->ref_idx[LIST_0][j][i];
        enc_picture->ref_pic_id [LIST_0][j][i] =(cur_ref[LIST_0]>=0 
        ? enc_picture->ref_pic_num[LIST_0 + currMB->list_offset][cur_ref[LIST_0]]
        : -1);
      }
    }
   
    if (bframe)
    {
      for (j = img->block_y; j < img->block_y + BLOCK_MULTIPLE; j++)
      {
        for (i = img->block_x;i<img->block_x + BLOCK_MULTIPLE;i++)
        {
          cur_ref[LIST_1] = (int) enc_picture->ref_idx[LIST_1][j][i];
          enc_picture->ref_pic_id [LIST_1][j][i] = (cur_ref[LIST_1]>=0 
            ? enc_picture->ref_pic_num[LIST_1 + currMB->list_offset][cur_ref[LIST_1]]
            : -1);
        }
        
      }
    }
    
    //====== set the mv's for 8x8 partition with transform size 8x8 ======
    //save the mv data for 4x4 transform
    StoreMV8x8(1);
    //set new mv data for 8x8 transform
    RestoreMV8x8(0);
    
    //============= get pre-calculated data ==============
    //restore coefficients from 8x8 transform
    for (block = 0; block<4; block++)
    {
      for (k = 0; k<4; k++)
        for (j = 0; j<2; j++)
          memcpy (img->cofAC[block][k][j],cofAC_8x8ts[block][k][j], 65 * sizeof(int));            
    }     
    //restore reconstruction 
    if (cnt_nonz8_8x8ts <= _LUMA_8x8_COEFF_COST_ && 
      ((img->qp + img->bitdepth_luma_qp_scale)!=0 || img->lossless_qpprime_flag==0))
    {
      currMB->cbp     = 0;
      currMB->cbp_blk = 0;
      if(!img->residue_transform_flag) // Residue Color Transform
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memcpy(&enc_picture->imgY[img->pix_y+j][img->pix_x], tr8x8.mpr8x8[j], MB_BLOCK_SIZE * sizeof(imgpel));
      }
      else
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memset(rec_resG[j], 0, MB_BLOCK_SIZE * sizeof(int));
      }
	  /* start: modified by Melco, 2005/12/21 (JFVM inter bug) */
	  for(block=0;block<4;block++)
	  {
		 for( i = 0; i < 4; i++ )
			 for( j = 0; j < 2; j++ )
				 memset( img->cofAC[block][i][j], 0, 65 * sizeof(int));
	  }
	  /* end: modified by Melco, 2005/12/21 */
    }
    else
    {
      currMB->cbp     = cbp8_8x8ts;
      currMB->cbp_blk = cbp_blk8_8x8ts;
      if(!img->residue_transform_flag)                // Residue Color Transform
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memcpy (&enc_picture->imgY[img->pix_y+j][img->pix_x],tr8x8.rec_mbY8x8[j], MB_BLOCK_SIZE * sizeof(imgpel));            
      }
      else
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memcpy (rec_resG[j], tr8x8.rec_resG_8x8[j], MB_BLOCK_SIZE * sizeof(int));
      }
    }
    
    if(img->residue_transform_flag)                // Residue Color Transform
    {
      // Residue Color Transform
      for (j = 0; j < MB_BLOCK_SIZE; j++)
        for (i = 0; i < MB_BLOCK_SIZE; i++)
        {
          mprRGB[0][j][i]  = tr8x8.mprRGB_8x8[0][j][i];
          mprRGB[1][j][i]  = tr8x8.mprRGB_8x8[1][j][i];
          mprRGB[2][j][i]  = tr8x8.mprRGB_8x8[2][j][i];
          resTrans_R[j][i] = tr8x8.resTrans_R_8x8[j][i];
          resTrans_B[j][i] = tr8x8.resTrans_B_8x8[j][i];
        }
    }
  }
  else
  {
    //============= get pre-calculated data ==============
    //---------------------------------------------------
    //--- restore coefficients ---
    for (block = 0; block<4+img->num_blk8x8_uv; block++)
    {
      for (k = 0; k<4; k++)
        for (j = 0; j<2; j++)
          memcpy (img->cofAC[block][k][j],cofAC8x8[block][k][j], 65 * sizeof(int));            
    }
    
	/* start: modified by Melco, 2005/12/21 */
//    if (cnt_nonz_8x8<=5 && img->type!=SP_SLICE &&
//      ((img->qp + img->bitdepth_luma_qp_scale)!=0 || img->lossless_qpprime_flag==0))
    if (cnt_nonz_8x8 <= _LUMA_8x8_COEFF_COST_ && 
      ((img->qp + img->bitdepth_luma_qp_scale)!=0 || img->lossless_qpprime_flag==0))
    {
	/* end: modified by Melco, 2005/12/21 */
      currMB->cbp     = 0;
			cbp1 = cbp2 = 0; /*lliu, 08/09*/
      currMB->cbp_blk = 0;
      if(!img->residue_transform_flag) // Residue Color Transform
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memcpy (&enc_picture->imgY[img->pix_y+j][img->pix_x],tr4x4.mpr8x8[j], MB_BLOCK_SIZE * sizeof(imgpel));            
      }
      else
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memset(rec_resG[j], 0, MB_BLOCK_SIZE * sizeof(int));
      }
	  /* start: modified by Melco 2005/12/21 (JFVM inter bug) */
	  for(block=0;block<4;block++)
	  {
		 for( i = 0; i < 4; i++ )
			 for( j = 0; j < 2; j++ )
				 memset( img->cofAC[block][i][j], 0, 65 * sizeof(int));
	  }
	  /* end: modified by Melco, 2005/12/21 */
    }
    else
    {
      currMB->cbp     = cbp8x8;
      currMB->cbp_blk = cbp_blk8x8;
      if(!img->residue_transform_flag)           // Residue Color Transform
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memcpy (&enc_picture->imgY[img->pix_y+j][img->pix_x],tr4x4.rec_mbY8x8[j], MB_BLOCK_SIZE * sizeof(imgpel));            
      }
      else
      {
        for (j = 0; j < MB_BLOCK_SIZE; j++)
          memcpy(rec_resG[j], tr4x4.rec_resG_8x8[j], MB_BLOCK_SIZE * sizeof(int));
      }
    }
    
    if(img->residue_transform_flag)           // Residue Color Transform
    {
      // Residue Color Transform
      for (j = 0; j < MB_BLOCK_SIZE; j++)
      {
        memcpy(mprRGB[0][j], tr4x4.mprRGB_8x8[0][j], MB_BLOCK_SIZE * sizeof(int));
        memcpy(mprRGB[1][j], tr4x4.mprRGB_8x8[1][j], MB_BLOCK_SIZE * sizeof(int));
        memcpy(mprRGB[2][j], tr4x4.mprRGB_8x8[2][j], MB_BLOCK_SIZE * sizeof(int));
        memcpy(resTrans_R[j], tr4x4.resTrans_R_8x8[j], MB_BLOCK_SIZE * sizeof(int));
        memcpy(resTrans_B[j], tr4x4.resTrans_B_8x8[j], MB_BLOCK_SIZE * sizeof(int));
      }
    }
  }
}


/*!
 *************************************************************************************
 * \brief
 *    Sets motion vectors for a macroblock
 *************************************************************************************
 */
void SetMotionVectorsMB (Macroblock* currMB, int bframe)
{
  int i, j, k, l, m, mode8, pdir8, ref, by, bx, bxr;
  short ******all_mv  = img->all_mv;
  short ******pred_mv = img->pred_mv;
  int  bw_ref;
  int jdiv, jmod;
 
  for (j = 0; j<4; j++)
  {
    jmod = j & 0x01;
    jdiv = j >>   1;
    by    = img->block_y+j;
    for (i = 0; i<4; i++)
    {
      mode8 = currMB->b8mode[k=2*jdiv+(i>>1)];
      l     = 2*jmod + (i & 0x01);
      
      bxr   = img->block_x+i;
      bx    = img->block_x+i+4;
      
      pdir8 = currMB->b8pdir[k];
      ref    = enc_picture->ref_idx[LIST_0][by][bxr];
      bw_ref = enc_picture->ref_idx[LIST_1][by][bxr];
      
      if (currMB->bi_pred_me && (pdir8 == 2) && currMB->mb_type==1)
      {
        all_mv  = currMB->bi_pred_me == 1 ? img->bipred_mv1 : img->bipred_mv2;
        ref = 0;
        bw_ref = 0;
      }
      
      if (!bframe)
      {
        if (pdir8>=0) //(mode8!=IBLOCK)&&(mode8!=I16MB))  // && ref != -1)
        {
          enc_picture->mv[LIST_0][by][bxr][0] = all_mv [j][i][LIST_0][ ref][mode8][0];
          enc_picture->mv[LIST_0][by][bxr][1] = all_mv [j][i][LIST_0][ ref][mode8][1];
        }
        else
        {
          enc_picture->mv[LIST_0][by][bxr][0] = 0;
          enc_picture->mv[LIST_0][by][bxr][1] = 0;
        }
      }
      else
      {
        if (pdir8==-1) // intra
        {
          enc_picture->mv[LIST_0][by][bxr][0] = 0;
          enc_picture->mv[LIST_0][by][bxr][1] = 0;
          enc_picture->mv[LIST_1][by][bxr][0] = 0;
          enc_picture->mv[LIST_1][by][bxr][1] = 0;
        }
        else if (pdir8==0) // list 0
        {
          enc_picture->mv[LIST_0][by][bxr][0] = all_mv [j][i][LIST_0][ ref][mode8][0];
          enc_picture->mv[LIST_0][by][bxr][1] = all_mv [j][i][LIST_0][ ref][mode8][1];
          enc_picture->mv[LIST_1][by][bxr][0] = 0;
          enc_picture->mv[LIST_1][by][bxr][1] = 0;
        }
        else if (pdir8==1) // list 1
        {
          enc_picture->mv[LIST_0][by][bxr][0] = 0;
          enc_picture->mv[LIST_0][by][bxr][1] = 0;          
          enc_picture->mv[LIST_1][by][bxr][0] = all_mv [j][i][LIST_1][bw_ref][mode8][0];
          enc_picture->mv[LIST_1][by][bxr][1] = all_mv [j][i][LIST_1][bw_ref][mode8][1];
        }
        else if (pdir8==2) // bipredictive
        {
          enc_picture->mv[LIST_0][by][bxr][0] = all_mv [j][i][LIST_0][ ref][mode8][0];
          enc_picture->mv[LIST_0][by][bxr][1] = all_mv [j][i][LIST_0][ ref][mode8][1];                   
          enc_picture->mv[LIST_1][by][bxr][0] = all_mv [j][i][LIST_1][bw_ref][mode8][0];
          enc_picture->mv[LIST_1][by][bxr][1] = all_mv [j][i][LIST_1][bw_ref][mode8][1];
        }
        else
        {
          error("invalid direction mode", 255);
        }
      }
    }
  }
  
  // copy all the motion vectors into rdopt structure
  // Can simplify this by copying the MV's of the best mode (TBD)
  if(img->MbaffFrameFlag)
  {
    for(i = 0;i<4;i++)
    {
      for(j = 0;j<4;j++)
      {
        for (k = 0;k<2;k++)
        {
          for(l = 0;l<img->max_num_references;l++)
          {
            for(m = 0;m<9;m++)
            {
              rdopt->all_mv [j][i][k][l][m][0]  = all_mv [j][i][k][l][m][0];
              rdopt->pred_mv[j][i][k][l][m][0]  = pred_mv[j][i][k][l][m][0];
              
              rdopt->all_mv [j][i][k][l][m][1]  = all_mv [j][i][k][l][m][1];
              rdopt->pred_mv[j][i][k][l][m][1]  = pred_mv[j][i][k][l][m][1];
            }
          }
        }
      }
    }
  }
}



/*!
 *************************************************************************************
 * \brief
 *    R-D Cost for a macroblock
 *************************************************************************************
 */
int RDCost_for_macroblocks (double   lambda,       // <-- lagrange multiplier
                            int      mode,         // <-- modus (0-COPY/DIRECT, 1-16x16, 2-16x8, 3-8x16, 4-8x8(+), 5-Intra4x4, 6-Intra16x16)
                            double*  min_rdcost,   // <-> minimum rate-distortion cost
                            double*  min_rate,     // --> bitrate of mode which has minimum rate-distortion cost. 
                            int i16mode )
{
  int         i, j, k; //, k, ****ip4;
  int         j1, j2;
  int         rate = 0, coeff_rate = 0;
  int64       distortion = 0;
  double      rdcost;
  Macroblock  *currMB   = &img->mb_data[img->current_mb_nr];
  Macroblock  *prevMB   = img->current_mb_nr ? &img->mb_data[img->current_mb_nr-1] : NULL;
  int         bframe    = (img->type==B_SLICE);
  int         tmp_cc;
  int         use_of_cc =  (img->type!=I_SLICE &&  input->symbol_mode!=CABAC);
  int         cc_rate, dummy;
  int         cr_cbp = 0, uv;
  
  //=====
  //=====  SET REFERENCE FRAMES AND BLOCK MODES
  //=====
  SetModesAndRefframeForBlocks (mode);
  
  //=====
  //=====  GET COEFFICIENTS, RECONSTRUCTIONS, CBP
  //=====
  if (bframe && mode==0)
  {
    int block_x=img->pix_x>>2;
    int block_y=img->pix_y>>2;    
    for (j = block_y;j< block_y + 4;j++)
      for (i = block_x;i<block_x + 4;i++)
        if (direct_pdir[j][i] < 0)
          return 0;
  }
  
  // Test MV limits for Skip Mode. This could be necessary for MBAFF case Frame MBs. 
  if ((img->MbaffFrameFlag) && (!currMB->mb_field) && (img->type==P_SLICE) && (mode==0) )
  {
    if ( img->all_mv[0][0][0][0][0][0] < - 8192 
      || img->all_mv[0][0][0][0][0][0] > 8191 
      || img->all_mv[0][0][0][0][0][1] < LEVELMVLIMIT[img->LevelIndex][4] 
      || img->all_mv[0][0][0][0][0][1] > LEVELMVLIMIT[img->LevelIndex][4])
      return 0;
  }
  
  if (img->AdaptiveRounding)
  {
    for (j = 0;j < MB_BLOCK_SIZE;j++)
    {
      memset(img->fadjust4x4[0][j], 0, MB_BLOCK_SIZE * sizeof(int));;
      memset(img->fadjust8x8[0][j], 0, MB_BLOCK_SIZE * sizeof(int));

      memset(img->fadjust4x4addluma[0][0][j], 0, MB_BLOCK_SIZE * sizeof(int)); /*lliu, 07/13*/
      memset(img->fadjust4x4addluma[1][0][j], 0, MB_BLOCK_SIZE * sizeof(int));
      memset(img->fadjust8x8addluma[0][0][j], 0, MB_BLOCK_SIZE * sizeof(int));
      memset(img->fadjust8x8addluma[1][0][j], 0, MB_BLOCK_SIZE * sizeof(int));

      memset(img->fadjust4x4Cr[0][0][j], 0, MB_BLOCK_SIZE * sizeof(int));
      memset(img->fadjust4x4Cr[0][1][j], 0, MB_BLOCK_SIZE * sizeof(int));
    }
  }
  
  if (mode<P8x8)
  {
    LumaResidualCoding ();
//INDEPENDENT_MODE
	if( !IS_INDEPENDENT(input) )	// INDEPENDENT_MODE 2006.07.26
	{
		AddLumaResidualCoding(0);  /*lliu, 06/28*/
		AddLumaResidualCoding(1);
	}
//INDEPENDENT_MODE
	
    if(mode==0 && (currMB->cbp==0 && cbp1 == 0 && cbp2 == 0) && currMB->luma_transform_size_8x8_flag==1)  /*lliu, 08/09*/ //for B_skip, luma_transform_size_8x8_flag=0 only
      return 0;
  }
  else if (mode==P8x8)
  {
    SetCoeffAndReconstruction8x8 (currMB);
//INDEPENDENT_MODE
	if( !IS_INDEPENDENT(input) )	// INDEPENDENT_MODE 2006.07.26
	{
	  AddLumaResidualCoding(0);  /*lliu, 06/29*/
	  AddLumaResidualCoding(1);
	}
//INDEPENDENT_MODE
  }
  else if (mode==I4MB)
  {
    currMB->cbp = Mode_Decision_for_Intra4x4Macroblock (lambda, &dummy); 
    
    // Residue Color Transform
    if(img->residue_transform_flag)
    {
      for(i = 0; i<2; i++)
      {
        for(j = 0; j<4; j++)
          for(k = 0; k<4; k++)
            if(cbp_chroma_block[i][j][k])
              cr_cbp = 2;
      }
      for(uv=0; uv<2; uv++)
        cr_cbp = dct_chroma_DC(uv, cr_cbp);
      
      currMB->cbp += (cr_cbp<<4);
    }
  }
  else if (mode==I16MB)
  {
 Intra16x16_Mode_Decision  (currMB, &i16mode); 
    i16x16mode = i16mode;
//INDEPENDENT_MODE
	if( !IS_INDEPENDENT(input) )
	{
//INDEPENDENT_MODE	  if ( input->ProfileIDC==FREXT_AD444 ) /*lliu, 06/27*/
	  if ( IS_COMMON(input) )	// INDEPENDENT_MODE 2006.07.27
	  {
		intrapred_addluma_16x16 (0);
		intrapred_addluma_16x16 (1);
		cbp1 = dct_addluma_16x16(0, i16x16mode);
		cbp2 = dct_addluma_16x16(1, i16x16mode); 
// zli: start
		currMB->cbp |= cbp1;
		currMB->cbp |= cbp2;
		cbp1 = currMB->cbp;
		cbp2 = currMB->cbp;
// zli: end
	  }
	}
//INDEPENDENT_MODE
	}
  else if(mode==I8MB)
  {
    currMB->cbp = Mode_Decision_for_new_Intra8x8Macroblock(lambda, &dummy); 
    
    // Residue Color Transform
    if(img->residue_transform_flag)
    {
      for(i = 0; i<2; i++)
      {
        for(j = 0; j<4; j++)
          for(k = 0; k<4; k++)
            if(cbp_chroma_block[i][j][k])
              cr_cbp = 2;
      }     
      for(uv = 0; uv<2; uv++)
        cr_cbp = dct_chroma_DC(uv, cr_cbp);
      
      currMB->cbp += (cr_cbp<<4);
    }
  }
  else if(mode==IPCM)
  {
    for (j = 0; j < MB_BLOCK_SIZE; j++)
    {
      j1 = j + img->opix_y;
      j2 = j + img->pix_y;
      for (i=img->opix_x; i<img->opix_x+MB_BLOCK_SIZE; i++)        
        enc_picture->imgY[j2][i] = imgY_org[j1][i];
    }
    if (img->yuv_format != YUV400)
    {
      // CHROMA
      for (j = 0; j<img->mb_cr_size_y; j++)
      {
        j1 = j + img->opix_c_y;
        j2 = j + img->pix_c_y;
        for (i=img->opix_c_x; i<img->opix_c_x+img->mb_cr_size_x; i++)
        {
          enc_picture->imgUV[0][j2][i] = imgUV_org[0][j1][i];
          enc_picture->imgUV[1][j2][i] = imgUV_org[1][j1][i];
        }
      }
    }  
  }

  if (input->rdopt==3 && img->type!=B_SLICE)
  {
    // We need the reconstructed prediction residue for the simulated decoders.
    compute_residue_mb (mode==I16MB?i16mode:-1);
  }
  
  //Rate control
  if (input->RCEnable)
  {
    if (mode == I16MB)
      memcpy(pred,img->mprr_2[i16mode],MB_PIXELS * sizeof(imgpel));
    else
      memcpy(pred,img->mpr,MB_PIXELS * sizeof(imgpel));
  }

  img->i16offset = 0;
  dummy = 0;
  if ((input->ProfileIDC!=FREXT_AD444)) /*lliu, 06/28, disable original chroma coding for intra mode*/
  {
		if ((!(img->residue_transform_flag && (mode==I4MB || mode==I16MB || mode==I8MB))) && img->yuv_format!=YUV400)
			ChromaResidualCoding (&dummy);
	}
  if (mode==I16MB)     
    img->i16offset = I16Offset  (currMB->cbp, i16mode);
  
  //=====
  //=====   GET DISTORTION
  //=====
  // LUMA
  if (input->rdopt==3 && img->type!=B_SLICE)
  {
    for (k = 0; k<input->NoOfDecoders ;k++)
    {
      decode_one_mb (k, currMB);
      for (j = 0; j<MB_BLOCK_SIZE; j++)
      {
        for (i=img->opix_x; i<img->opix_x+MB_BLOCK_SIZE; i++)
          distortion += img->quad [imgY_org[img->opix_y+j][i] - decs->decY[k][img->opix_y+j][i]];
      }
    }
    distortion /= input->NoOfDecoders;
  }
  else
  {
    for (j = 0; j < MB_BLOCK_SIZE; j++)
    {
      j1 = j + img->opix_y;
      j2 = j + img->pix_y;
      for (i=img->opix_x; i<img->opix_x+MB_BLOCK_SIZE; i++) 
        distortion += img->quad [imgY_org[j1][i] - enc_picture->imgY[j2][i]];
    }
  }

//INDEPENDENT_MODE 2005.12.01 Del Chroma Proc Melco
  if( !IS_INDEPENDENT(input) )	// INDEPENDENT_MODE 2006.07.26
  {
	if (img->yuv_format != YUV400)
	{
	  // CHROMA
	  for (j = 0; j<img->mb_cr_size_y; j++)
	  {
		j1 = j + img->opix_c_y;
		j2 = j + img->pix_c_y;
		for (i=img->opix_c_x; i<img->opix_c_x+img->mb_cr_size_x; i++)
		{
		  distortion += img->quad [imgUV_org[0][j1][i] - enc_picture->imgUV[0][j2][i]];
		  distortion += img->quad [imgUV_org[1][j1][i] - enc_picture->imgUV[1][j2][i]];
		}
	  }
	} 
  }
//INDEPENDENT_MODE
  
  //=====   S T O R E   C O D I N G   S T A T E   =====
  //---------------------------------------------------
  store_coding_state (cs_cm);
  
  //=====
  //=====   GET RATE
  //=====
  //----- macroblock header -----
  if (use_of_cc)
  {
    if (currMB->mb_type!=0 || (bframe && currMB->cbp!=0))
    {
      // cod counter and macroblock mode are written ==> do not consider code counter
      tmp_cc = img->cod_counter;
	  rate   = writeMBLayer (1, &coeff_rate);

      ue_linfo (tmp_cc, dummy, &cc_rate, &dummy);
      rate  -= cc_rate;
      img->cod_counter = tmp_cc;
    }
    else
    {
      // cod counter is just increased  ==> get additional rate
      ue_linfo (img->cod_counter+1, dummy, &rate,    &dummy);
      ue_linfo (img->cod_counter,   dummy, &cc_rate, &dummy);
      rate -= cc_rate;
    }
  }
  else
  {
	rate = writeMBLayer (1, &coeff_rate);
  }
  
  //=====   R E S T O R E   C O D I N G   S T A T E   =====
  //-------------------------------------------------------
  reset_coding_state (cs_cm);

  rdcost = (double)distortion + lambda * max(0.5,(double)rate);

  if (rdcost >= *min_rdcost ||
    ((img->qp + img->bitdepth_luma_qp_scale)==0 && img->lossless_qpprime_flag==1 && distortion!=0))
  {
#if FASTMODE
    // Reordering RDCost comparison order of mode 0 and mode 1 in P_SLICE
    // if RDcost of mode 0 and mode 1 is same, we choose best_mode is 0
    // This might not always be good since mode 0 is more biased towards rate than quality.
    if((img->type!=P_SLICE || mode != 0 || rdcost != *min_rdcost) || input->ProfileIDC>=FREXT_HP)
#endif
      return 0;
  }
  
  
  if ((img->MbaffFrameFlag) && (mode ? 0: ((img->type == B_SLICE) ? !currMB->cbp:1)))  // AFF and current is skip
  {
    if (img->current_mb_nr & 0x01) //bottom
    {
      if (prevMB->mb_type ? 0:((img->type == B_SLICE) ? !prevMB->cbp:1)) //top is skip
      {
        if (!(field_flag_inference() == currMB->mb_field)) //skip only allowed when correct inference
          return 0;
      }
    }
  }

  //=====   U P D A T E   M I N I M U M   C O S T   =====
  //-----------------------------------------------------
  *min_rdcost = rdcost;
  *min_rate = lambda * (double)coeff_rate;
  return 1;
}

/*!
 *************************************************************************************
 * \brief
 *    Store adaptive rounding parameters
 *************************************************************************************
 */
void store_adaptive_rounding_parameters (int mode, Macroblock *currMB)
{
  int i,j;

  for (j = 0; j < MB_BLOCK_SIZE; j++)
  {
    for (i = 0; i < MB_BLOCK_SIZE; i++)
    {      
      if ((mode == P8x8))
      {
        if (currMB->luma_transform_size_8x8_flag)
        {
          bestInterFAdjust8x8[j][i]=img->fadjust8x8[2][j][i]; 

          bestInterFAdjust8x8_addluma[0][j][i]=img->fadjust8x8addluma[0][2][j][i]; /*lliu, 07/13*/
          bestInterFAdjust8x8_addluma[1][j][i]=img->fadjust8x8addluma[1][2][j][i]; /*lliu, 07/13*/

          if ((i >> 3) ==0 && (j >> 3) == 0)
          {
            bestInterFAdjust4x4Cr[0][j][i]=img->fadjust8x8Cr[0][0][j][i]; 
            bestInterFAdjust4x4Cr[1][j][i]=img->fadjust8x8Cr[0][1][j][i]; 
          }
        }
        else
        {
          bestInterFAdjust4x4[j][i]=img->fadjust4x4[3][j][i]; 
          bestInterFAdjust4x4_addluma[0][j][i]=img->fadjust4x4addluma[0][3][j][i]; /*lliu, 07/13*/
          bestInterFAdjust4x4_addluma[1][j][i]=img->fadjust4x4addluma[1][3][j][i]; /*lliu, 07/13*/
          
          if ((i >> 3) ==0 && (j >> 3) == 0)
          {
            bestInterFAdjust4x4Cr[0][j][i]=img->fadjust4x4Cr[2][0][j][i]; 
            bestInterFAdjust4x4Cr[1][j][i]=img->fadjust4x4Cr[2][1][j][i]; 
          }
        }
      }
      else if ((mode != I4MB)&&(mode != I16MB)&&(mode != I8MB))
      {
        if (currMB->luma_transform_size_8x8_flag)
				{
          bestInterFAdjust8x8[j][i]=img->fadjust8x8[0][j][i]; 
          bestInterFAdjust8x8_addluma[0][j][i]=img->fadjust8x8addluma[0][0][j][i]; /*lliu, 07/13*/
          bestInterFAdjust8x8_addluma[1][j][i]=img->fadjust8x8addluma[1][0][j][i]; /*lliu, 07/13*/
				}
        else
				{
          bestInterFAdjust4x4[j][i]=img->fadjust4x4[0][j][i]; 
					bestInterFAdjust4x4_addluma[0][j][i]=img->fadjust4x4addluma[0][0][j][i]; /*lliu, 07/13*/
					bestInterFAdjust4x4_addluma[1][j][i]=img->fadjust4x4addluma[1][0][j][i]; /*lliu, 07/13*/
				}
        
        if ((i >> 3) ==0 && (j >> 3) == 0)
        {
          bestInterFAdjust4x4Cr[0][j][i]=img->fadjust4x4Cr[0][0][j][i]; 
          bestInterFAdjust4x4Cr[1][j][i]=img->fadjust4x4Cr[0][1][j][i]; 
        }        
      }
      else if (mode != I8MB)
      {
        bestIntraFAdjust4x4[j][i]=img->fadjust4x4[1 + mode == I16MB][j][i]; 
        bestIntraFAdjust4x4_addluma[0][j][i]=img->fadjust4x4addluma[0][1 + mode == I16MB][j][i];  /*lliu, 07/13*/
        bestIntraFAdjust4x4_addluma[1][j][i]=img->fadjust4x4addluma[1][1 + mode == I16MB][j][i];  /*lliu, 07/13*/       
        if ((i >> 3) ==0 && (j >> 3) == 0)
        {
          bestIntraFAdjust4x4Cr[0][j][i]=img->fadjust4x4Cr[1][0][j][i]; 
          bestIntraFAdjust4x4Cr[1][j][i]=img->fadjust4x4Cr[1][1][j][i]; 
        } 
      }
      else
      {
        bestIntraFAdjust8x8[j][i]=img->fadjust8x8[1][j][i]; 
        bestIntraFAdjust8x8_addluma[0][j][i]=img->fadjust8x8addluma[0][1][j][i];  /*lliu, 07/13*/
        bestIntraFAdjust8x8_addluma[1][j][i]=img->fadjust8x8addluma[1][1][j][i];  /*lliu, 07/13*/
        
        if ((i >> 3) ==0 && (j >> 3) == 0)
        {
          bestIntraFAdjust4x4Cr[0][j][i]=img->fadjust4x4Cr[0][1][j][i]; 
          bestIntraFAdjust4x4Cr[1][j][i]=img->fadjust4x4Cr[1][1][j][i]; 
        } 
      }
    }
  }
}

/*!
 *************************************************************************************
 * \brief
 *    Store macroblock parameters
 *************************************************************************************
 */
void store_macroblock_parameters (int mode)
{
  int  i, j, k, ****i4p, ***i3p;
  Macroblock *currMB  = &img->mb_data[img->current_mb_nr];
  int        bframe   = (img->type==B_SLICE);
  
  //--- store best mode ---
  best_mode = mode;
  best_c_imode = currMB->c_ipred_mode;
  best_i16offset = img->i16offset;
  
  // If condition is not really necessary.
  bi_pred_me = (mode == 1) ? currMB->bi_pred_me : 0;  
  
  memcpy(b8mode, currMB->b8mode, BLOCK_MULTIPLE * sizeof(int));
  memcpy(b8pdir, currMB->b8pdir, BLOCK_MULTIPLE * sizeof(int));

  // Residue Color Transform
  //for (k = 0, j=img->block_y; j<img->block_y+BLOCK_MULTIPLE; j++, k+=BLOCK_MULTIPLE)
  memcpy(b4_intra_pred_modes,currMB->intra_pred_modes, MB_BLOCK_PARTITIONS * sizeof(char));
  memcpy(b8_intra_pred_modes8x8,currMB->intra_pred_modes8x8, MB_BLOCK_PARTITIONS * sizeof(char));
  for (j = 0 ; j<BLOCK_MULTIPLE; j++)
  {
    memcpy(&b4_ipredmode[j * BLOCK_MULTIPLE],&img->ipredmode[img->block_y + j][img->block_x],BLOCK_MULTIPLE * sizeof(char));
    memcpy(b8_ipredmode8x8[j],&img->ipredmode8x8[img->block_y + j][img->block_x],BLOCK_MULTIPLE * sizeof(char));
  }  
  //--- reconstructed blocks ----
  for (j = 0; j < MB_BLOCK_SIZE; j++)
    memcpy(rec_mbY[j],&enc_picture->imgY[img->pix_y+j][img->pix_x], MB_BLOCK_SIZE * sizeof(imgpel));

  if (img->AdaptiveRounding)
    store_adaptive_rounding_parameters (mode, currMB);

  if (img->yuv_format != YUV400)
  {
    for (j = 0; j<img->mb_cr_size_y; j++)
    {
      memcpy(rec_mbU[j],&enc_picture->imgUV[0][img->pix_c_y+j][img->pix_c_x], img->mb_cr_size_x * sizeof(imgpel));
      memcpy(rec_mbV[j],&enc_picture->imgUV[1][img->pix_c_y+j][img->pix_c_x], img->mb_cr_size_x * sizeof(imgpel));
    }
  }
  
  
  //--- store results of decoders ---
  if (input->rdopt==3 && img->type!=B_SLICE)
  {
    for (k = 0; k<input->NoOfDecoders; k++)
    {
      for (j=img->pix_y; j<img->pix_y+16; j++)
        for (i=img->pix_x; i<img->pix_x+16; i++)
        {
          // Keep the decoded values of each MB for updating the ref frames
          decs->decY_best[k][j][i] = decs->decY[k][j][i];
        }
    }
  }
  
  //--- coeff, cbp, kac ---
  if (mode || bframe)
  {
    i4p=cofAC; cofAC=img->cofAC; img->cofAC=i4p; 
    i3p=cofDC; cofDC=img->cofDC; img->cofDC=i3p;
    cbp     = currMB->cbp;
		curr_cbp1 = cbp1;  /*lliu, 06/17*/
		curr_cbp2 = cbp2; 
    cbp_blk = currMB->cbp_blk;
  }
  else
  {
    cbp_blk = cbp = 0;
		cbp1 = cbp2 = 0; /*lliu, 08/10*/
  }
  
  //--- store transform size ---
  luma_transform_size_8x8_flag = currMB->luma_transform_size_8x8_flag;
  
  
  for (j = 0; j<4; j++)
    memcpy(frefframe[j],&enc_picture->ref_idx[LIST_0][img->block_y+j][img->block_x], BLOCK_MULTIPLE * sizeof(char));

  if (bframe)
  {
    for (j = 0; j<4; j++)
      memcpy(brefframe[j],&enc_picture->ref_idx[LIST_1][img->block_y+j][img->block_x], BLOCK_MULTIPLE * sizeof(char));
    }  
}


/*!
 *************************************************************************************
 * \brief
 *    Set stored macroblock parameters
 *************************************************************************************
 */
void set_stored_macroblock_parameters ()
{
  int  i, j, k, ****i4p, ***i3p;
  Macroblock  *currMB  = &img->mb_data[img->current_mb_nr];
  int         mode     = best_mode;
  int         bframe   = (img->type==B_SLICE);
  char    **ipredmodes = img->ipredmode;
  
  imgpel        **imgY  = enc_picture->imgY;
  imgpel       ***imgUV = enc_picture->imgUV;
  int        block_x, block_y;  
  short   *cur_mv;
  
  //===== reconstruction values =====
  for (j = 0; j < MB_BLOCK_SIZE; j++)
  {
    memcpy(&imgY[img->pix_y+j][img->pix_x],rec_mbY[j], MB_BLOCK_SIZE * sizeof(imgpel));
    if(img->MbaffFrameFlag)
      memcpy(rdopt->rec_mbY[j],rec_mbY[j], MB_BLOCK_SIZE * sizeof(imgpel));
  } 
  if (img->AdaptiveRounding)
  {
    update_offset_params(mode,luma_transform_size_8x8_flag);
  }
  
  if (img->yuv_format != YUV400)
  {
    for (j = 0; j<img->mb_cr_size_y; j++)
    {
      memcpy(&imgUV[0][img->pix_c_y+j][img->pix_c_x],rec_mbU[j], img->mb_cr_size_x * sizeof(imgpel));
      memcpy(&imgUV[1][img->pix_c_y+j][img->pix_c_x],rec_mbV[j], img->mb_cr_size_x * sizeof(imgpel));
      if(img->MbaffFrameFlag)
      {
        memcpy(rdopt->rec_mbU[j],rec_mbU[j], img->mb_cr_size_x * sizeof(imgpel));
        memcpy(rdopt->rec_mbV[j],rec_mbV[j], img->mb_cr_size_x * sizeof(imgpel));
      }
    }
  }

  //===== coefficients and cbp =====
  i4p=cofAC; cofAC=img->cofAC; img->cofAC=i4p;
  i3p=cofDC; cofDC=img->cofDC; img->cofDC=i3p;
  currMB->cbp      = cbp;
  cbp1 = curr_cbp1; /*lliu, 06/17*/
  cbp2 = curr_cbp2; 
// zli: start		  
  currMB->cbp |= cbp1;
  currMB->cbp |= cbp2;
  cbp1 = currMB->cbp; 
  cbp2 = currMB->cbp;
// zli: end
  currMB->cbp_blk = cbp_blk;
  //==== macroblock type ====
  currMB->mb_type = mode;
  
  if(img->MbaffFrameFlag)
  {
    rdopt->mode = mode;
    rdopt->i16offset = img->i16offset;
    rdopt->cbp = cbp;
    rdopt->cbp_blk = cbp_blk;
    rdopt->mb_type  = mode;
    
    rdopt->prev_qp=currMB->prev_qp;
    rdopt->prev_delta_qp=currMB->prev_delta_qp;
    rdopt->qp=currMB->qp;
    
    for(i = 0;i<4+img->num_blk8x8_uv;i++)
    {
      for(j = 0;j<4;j++)
        for(k = 0;k<2;k++)
          memcpy(rdopt->cofAC[i][j][k], img->cofAC[i][j][k], 65 * sizeof(int));
    }     
    for(i = 0;i<3;i++)
      for(k = 0;k<2;k++)
        memcpy(rdopt->cofDC[i][k], img->cofDC[i][k], 18 * sizeof(int));
  }
  

  memcpy(currMB->b8mode,b8mode, BLOCK_MULTIPLE * sizeof(int));
  memcpy(currMB->b8pdir,b8pdir, BLOCK_MULTIPLE * sizeof(int));
  if(img->MbaffFrameFlag)
  {
    memcpy(rdopt->b8mode,b8mode, BLOCK_MULTIPLE * sizeof(int));
    memcpy(rdopt->b8pdir,b8pdir, BLOCK_MULTIPLE * sizeof(int));    
  }
    
  currMB->bi_pred_me = currMB->mb_type == 1 ? bi_pred_me : 0;  
  
  
  //if P8x8 mode and transform size 4x4 choosen, restore motion vector data for this transform size 
  if (mode == P8x8 && !luma_transform_size_8x8_flag && input->Transform8x8Mode)
    RestoreMV8x8(1);
  
  //==== transform size flag ====
  if ((currMB->cbp == 0 && cbp1 == 0 && cbp2==0) && !(IS_OLDINTRA(currMB) || currMB->mb_type == I8MB)) /*lliu, 08/11*/
//  if (((currMB->cbp & 15) == 0) && !(IS_OLDINTRA(currMB) || currMB->mb_type == I8MB))
    currMB->luma_transform_size_8x8_flag = 0;
  else
    currMB->luma_transform_size_8x8_flag = luma_transform_size_8x8_flag;
  
  rdopt->luma_transform_size_8x8_flag  = currMB->luma_transform_size_8x8_flag;
  
  if (input->rdopt==3 && img->type!=B_SLICE)
  {
    //! save the MB Mode of every macroblock
    decs->dec_mb_mode[img->mb_x][img->mb_y] = mode;
  }
  
  //==== reference frames =====
  for (j = 0; j < 4; j++)
  {
    block_y = img->block_y + j;
    for (i = 0; i < 4; i++)
    {
      block_x = img->block_x + i;
      k = 2*(j >> 1)+(i >> 1);
      
      // backward prediction or intra
      if ((currMB->b8pdir[k] == 1) || IS_INTRA(currMB))
      {
        enc_picture->ref_idx    [LIST_0][block_y][block_x]    = -1;
        enc_picture->ref_pic_id [LIST_0][block_y][block_x]    = -1;          
        enc_picture->mv         [LIST_0][block_y][block_x][0] = 0;
        enc_picture->mv         [LIST_0][block_y][block_x][1] = 0;
        if(img->MbaffFrameFlag)
          rdopt->refar[LIST_0][j][i] = -1;
      }
      else
      {
        if (currMB->bi_pred_me && (currMB->b8pdir[k] == 2) && currMB->mb_type==1)
        {
          cur_mv = currMB->bi_pred_me == 1 
            ? img->bipred_mv1[j][i][LIST_0][0][currMB->b8mode[k]] 
            : img->bipred_mv2[j][i][LIST_0][0][currMB->b8mode[k]];
          
          enc_picture->ref_idx    [LIST_0][block_y][block_x] = 0;                         
          enc_picture->ref_pic_id [LIST_0][block_y][block_x] = enc_picture->ref_pic_num[LIST_0 + currMB->list_offset][0];
          enc_picture->mv         [LIST_0][block_y][block_x][0] = cur_mv[0];
          enc_picture->mv         [LIST_0][block_y][block_x][1] = cur_mv[1];
          if(img->MbaffFrameFlag)
            rdopt->refar[LIST_0][j][i] = 0;        
        }
        else
        {
          cur_mv = img->all_mv[j][i][LIST_0][(short)frefframe[j][i]][currMB->b8mode[k]];
          
          enc_picture->ref_idx    [LIST_0][block_y][block_x]    = frefframe[j][i];
          enc_picture->ref_pic_id [LIST_0][block_y][block_x]    = enc_picture->ref_pic_num[LIST_0 + currMB->list_offset][(short)frefframe[j][i]];
          enc_picture->mv         [LIST_0][block_y][block_x][0] = cur_mv[0];
          enc_picture->mv         [LIST_0][block_y][block_x][1] = cur_mv[1];
          if(img->MbaffFrameFlag)
            rdopt->refar[LIST_0][j][i] = frefframe[j][i];
        }
      }
      
      // forward prediction or intra
      if ((currMB->b8pdir[k] == 0) || IS_INTRA(currMB))
      {
        enc_picture->ref_idx    [LIST_1][block_y][block_x]    = -1;
        enc_picture->ref_pic_id [LIST_1][block_y][block_x]    = -1;
        enc_picture->mv         [LIST_1][block_y][block_x][0] = 0;
        enc_picture->mv         [LIST_1][block_y][block_x][1] = 0;
        if(img->MbaffFrameFlag)
          rdopt->refar[LIST_1][j][i] = -1;
      }
    }
  }
  
  if (bframe)
  {
    for (j=0; j<4; j++)
    {
      block_y = img->block_y + j;
      for (i=0; i<4; i++)
      {          
        block_x = img->block_x + i;
        k = 2*(j >> 1)+(i >> 1);

        // forward
        if (IS_INTRA(currMB)||(currMB->b8pdir[k] == 0))
        {
          enc_picture->ref_idx    [LIST_1][block_y][block_x]    = -1;
          enc_picture->ref_pic_id [LIST_1][block_y][block_x]    = -1;
          enc_picture->mv         [LIST_1][block_y][block_x][0] = 0;
          enc_picture->mv         [LIST_1][block_y][block_x][1] = 0;
          if(img->MbaffFrameFlag)
            rdopt->refar[LIST_1][j][i] = -1;
        }
        else
        {
          if (currMB->bi_pred_me && (currMB->b8pdir[k] == 2) && currMB->mb_type==1)
          {
            cur_mv = currMB->bi_pred_me == 1 
              ? img->bipred_mv1[j][i][LIST_1][0][currMB->b8mode[k]] 
              : img->bipred_mv2[j][i][LIST_1][0][currMB->b8mode[k]];
            
            enc_picture->ref_idx    [LIST_1][block_y][block_x] = 0; 
            enc_picture->ref_pic_id [LIST_1][block_y][block_x] = enc_picture->ref_pic_num[LIST_1 + currMB->list_offset][0];
            enc_picture->mv         [LIST_1][block_y][block_x][0] = cur_mv[0];
            enc_picture->mv         [LIST_1][block_y][block_x][1] = cur_mv[1];        
            if(img->MbaffFrameFlag)
              rdopt->refar[LIST_1][j][i] = 0;        
          }
          else
          {
            cur_mv = img->all_mv[j][i][LIST_1][(short)brefframe[j][i]][currMB->b8mode[k]];
            
            enc_picture->ref_idx    [LIST_1][block_y][block_x] = brefframe[j][i];
            enc_picture->ref_pic_id [LIST_1][block_y][block_x] = enc_picture->ref_pic_num[LIST_1 + currMB->list_offset][(short)brefframe[j][i]];
            enc_picture->mv         [LIST_1][block_y][block_x][0] = cur_mv[0];
            enc_picture->mv         [LIST_1][block_y][block_x][1] = cur_mv[1];
            if(img->MbaffFrameFlag)
              rdopt->refar[LIST_1][j][i] = brefframe[j][i];
          }
        }
      }
    }
  }
  
  //==== intra prediction modes ====
  currMB->c_ipred_mode = best_c_imode;
  img->i16offset = best_i16offset;
  
  if(currMB->mb_type == I8MB)
  {
    memcpy(currMB->intra_pred_modes,currMB->intra_pred_modes8x8, MB_BLOCK_PARTITIONS * sizeof(char));
    for(j = img->block_y; j < img->block_y + BLOCK_MULTIPLE; j++)
      memcpy(&img->ipredmode[j][img->block_x],&img->ipredmode8x8[j][img->block_x], BLOCK_MULTIPLE * sizeof(char));
  }
  else if (mode!=I4MB && mode!=I8MB)
  {
    memset(currMB->intra_pred_modes,DC_PRED, MB_BLOCK_PARTITIONS * sizeof(char));
    for(j = img->block_y; j < img->block_y + BLOCK_MULTIPLE; j++)
      memset(&img->ipredmode[j][img->block_x], DC_PRED, BLOCK_MULTIPLE * sizeof(char));
  }
  // Residue Color Transform
  else if (mode == I4MB)
  {
    memcpy(currMB->intra_pred_modes,b4_intra_pred_modes, MB_BLOCK_PARTITIONS * sizeof(char));
    for(j = 0; j < BLOCK_MULTIPLE; j++)
      memcpy(&img->ipredmode[img->block_y + j][img->block_x],&b4_ipredmode[BLOCK_MULTIPLE * j], BLOCK_MULTIPLE * sizeof(char));
  }
  
  if(currMB->mb_type == I8MB)
  {
    memcpy(currMB->intra_pred_modes,b8_intra_pred_modes8x8, MB_BLOCK_PARTITIONS * sizeof(char));            
    for(j = 0; j < BLOCK_MULTIPLE; j++)
      memcpy(&img->ipredmode[img->block_y + j][img->block_x],&b8_ipredmode8x8[j], BLOCK_MULTIPLE * sizeof(char));
  }
  
  
  if(img->MbaffFrameFlag)
  {
    rdopt->c_ipred_mode = currMB->c_ipred_mode;
    rdopt->i16offset = img->i16offset;  
    memcpy(rdopt->intra_pred_modes,currMB->intra_pred_modes, MB_BLOCK_PARTITIONS * sizeof(char));
    for(j = img->block_y; j < img->block_y +BLOCK_MULTIPLE; j++)
      memcpy(&rdopt->ipredmode[j][img->block_x],&ipredmodes[j][img->block_x], BLOCK_MULTIPLE * sizeof(char));
  }
  
  //==== motion vectors =====
  SetMotionVectorsMB (currMB, bframe);
}



/*!
 *************************************************************************************
 * \brief
 *    Set reference frames and motion vectors
 *************************************************************************************
 */
void SetRefAndMotionVectors (int block, int mode, int pdir, int fwref, int bwref)
{
  int     i, j=0;
  int     bslice  = (img->type==B_SLICE);
  int     pmode   = (mode==1||mode==2||mode==3?mode:4);
  int     j0      = ((block >> 1)<<1);
  int     i0      = ((block & 0x01)<<1);
  int     j1      = j0 + (input->part_size[pmode][1]);
  int     i1      = i0 + (input->part_size[pmode][0]);
  int     block_x, block_y;
  short   *cur_mv;
  Macroblock  *currMB  = &img->mb_data[img->current_mb_nr];
  
  if (pdir<0)
  {
    for (j = img->block_y + j0; j < img->block_y + j1; j++)
    {
      for (i=img->block_x + i0; i<img->block_x +i1; i++)
      {
        enc_picture->ref_pic_id[LIST_0][j][i] = -1;
        enc_picture->ref_pic_id[LIST_1][j][i] = -1;
      }
      memset(&enc_picture->ref_idx[LIST_0][j][img->block_x + i0], -1, (input->part_size[pmode][0]) * sizeof(char));
      memset(&enc_picture->ref_idx[LIST_1][j][img->block_x + i0], -1, (input->part_size[pmode][0]) * sizeof(char));
      memset(enc_picture->mv[LIST_0][j][img->block_x + i0], 0, 2*(input->part_size[pmode][0]) * sizeof(short));
      memset(enc_picture->mv[LIST_1][j][img->block_x + i0], 0, 2*(input->part_size[pmode][0]) * sizeof(short));
    }
    return;
  }
  
  if (!bslice)
  {
    for (j=j0; j<j1; j++)
    {
      block_y = img->block_y + j;
      memset(&enc_picture->ref_idx   [LIST_0][block_y][img->block_x + i0], fwref, (input->part_size[pmode][0]) * sizeof(char));
      for (i=i0; i<i1; i++)
      {
        block_x = img->block_x + i;        
        cur_mv = img->all_mv[j][i][LIST_0][fwref][mode];                
        enc_picture->mv        [LIST_0][block_y][block_x][0] = cur_mv[0];
        enc_picture->mv        [LIST_0][block_y][block_x][1] = cur_mv[1];
        enc_picture->ref_pic_id[LIST_0][block_y][block_x] = enc_picture->ref_pic_num[LIST_0+currMB->list_offset][fwref];
      }
    }
    return;
  }
  else
  {
    for (j=j0; j<j1; j++)
    {
      block_y = img->block_y + j;
      for (i=i0; i<i1; i++)
      {
        block_x = img->block_x + i;
        if (mode==0)
        {
          pdir  = direct_pdir[block_y][block_x];
          fwref = direct_ref_idx[LIST_0][block_y][block_x];
          bwref = direct_ref_idx[LIST_1][block_y][block_x];
        }
        
        if ((pdir==0 || pdir==2))
        {
          if (currMB->bi_pred_me && (pdir == 2) && mode == 1)
          {
            cur_mv = currMB->bi_pred_me == 1 
              ? img->bipred_mv1[j][i][LIST_0][0][mode]
              : img->bipred_mv2[j][i][LIST_0][0][mode];
            
            enc_picture->mv        [LIST_0][block_y][block_x][0] = cur_mv[0];
            enc_picture->mv        [LIST_0][block_y][block_x][1] = cur_mv[1];
            enc_picture->ref_idx   [LIST_0][block_y][block_x]    = 0;            
            enc_picture->ref_pic_id[LIST_0][block_y][block_x]    = enc_picture->ref_pic_num[LIST_0+currMB->list_offset][0];
          }
          else
          {
            cur_mv = img->all_mv[j][i][LIST_0][fwref][mode];
            
            enc_picture->mv        [LIST_0][block_y][block_x][0] = cur_mv[0];
            enc_picture->mv        [LIST_0][block_y][block_x][1] = cur_mv[1];
            enc_picture->ref_idx   [LIST_0][block_y][block_x] = fwref;
            enc_picture->ref_pic_id[LIST_0][block_y][block_x] = 
            enc_picture->ref_pic_num[LIST_0+currMB->list_offset][(short)enc_picture->ref_idx[LIST_0][block_y][block_x]];
          }
        }
        else
        {
          enc_picture->mv        [LIST_0][block_y][block_x][0] = 0;
          enc_picture->mv        [LIST_0][block_y][block_x][1] = 0;
          enc_picture->ref_idx   [LIST_0][block_y][block_x]    = -1;
          enc_picture->ref_pic_id[LIST_0][block_y][block_x]    = -1;
        }
        
        if ((pdir==1 || pdir==2))
        {
          if (currMB->bi_pred_me && (pdir == 2) && mode == 1)
          {
            cur_mv = currMB->bi_pred_me == 1 
              ? img->bipred_mv1[j][i][LIST_1][0][mode]
              : img->bipred_mv2[j][i][LIST_1][0][mode];
            
            enc_picture->mv        [LIST_1][block_y][block_x][0] = cur_mv[0];
            enc_picture->mv        [LIST_1][block_y][block_x][1] = cur_mv[1];
            enc_picture->ref_idx   [LIST_1][block_y][block_x]    = 0;            
            enc_picture->ref_pic_id[LIST_1][block_y][block_x]    = enc_picture->ref_pic_num[LIST_1+currMB->list_offset][0];
          }
          else
          {
            cur_mv = img->all_mv[j][i][LIST_1][bwref][mode];
            
            enc_picture->mv        [LIST_1][block_y][block_x][0] = cur_mv[0];
            enc_picture->mv        [LIST_1][block_y][block_x][1] = cur_mv[1];
            enc_picture->ref_idx   [LIST_1][block_y][block_x] = bwref;
            enc_picture->ref_pic_id[LIST_1][block_y][block_x] = 
            enc_picture->ref_pic_num[LIST_1+currMB->list_offset][(short)enc_picture->ref_idx[LIST_1][block_y][block_x]];
          }
        }
        else
        {
          enc_picture->mv        [LIST_1][block_y][block_x][0] = 0;
          enc_picture->mv        [LIST_1][block_y][block_x][1] = 0;
          enc_picture->ref_idx   [LIST_1][block_y][block_x]    = -1;
          enc_picture->ref_pic_id[LIST_1][block_y][block_x]    = -1;
        }
      }
    }
  }
}

/*!
 *************************************************************************************
 * \brief
 *    skip macroblock field inference
 * \return
 *    inferred field flag
 *************************************************************************************
 */
int field_flag_inference()
{
  int mb_field;
  Macroblock *currMB = &img->mb_data[img->current_mb_nr];
  
  if (currMB->mbAvailA)
  {
    mb_field = img->mb_data[currMB->mbAddrA].mb_field;
  }
  else
  {
    // check top macroblock pair
    if (currMB->mbAvailB)
      mb_field = img->mb_data[currMB->mbAddrB].mb_field;
    else
      mb_field = 0;
  }
  
  return mb_field;
}

/*!
 *************************************************************************************
 * \brief
 *    Store motion vectors for 8x8 partition
 *************************************************************************************
 */

void StoreMVBlock8x8(int dir, int block8x8, int mode, int ref, int bw_ref, int pdir8, int bframe)
{
  int i, j, i0, j0, ii, jj;
  short ******all_mv  = img->all_mv;
  short ******pred_mv = img->pred_mv;
  
  
  i0 = (block8x8 & 0x01) << 1;
  j0 = (block8x8 >> 1) << 1;
  ii = i0+2;
  jj = j0+2;
  
  if (!bframe)
  {
    if (pdir8>=0) //(mode8!=IBLOCK)&&(mode8!=I16MB))  // && ref != -1)
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv8x8 [dir][LIST_0][j][i][0] = all_mv [j][i][LIST_0][ref][4][0];
          all_mv8x8 [dir][LIST_0][j][i][1] = all_mv [j][i][LIST_0][ref][4][1];
          pred_mv8x8[dir][LIST_0][j][i][0] = pred_mv[j][i][LIST_0][ref][4][0];
          pred_mv8x8[dir][LIST_0][j][i][1] = pred_mv[j][i][LIST_0][ref][4][1];
        }
    }
  }
  else
  {
    if (pdir8==0) // forward
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv8x8 [dir][LIST_0][j][i][0] = all_mv [j][i][LIST_0][ref][mode][0];
          all_mv8x8 [dir][LIST_0][j][i][1] = all_mv [j][i][LIST_0][ref][mode][1];
          pred_mv8x8[dir][LIST_0][j][i][0] = pred_mv[j][i][LIST_0][ref][mode][0];
          pred_mv8x8[dir][LIST_0][j][i][1] = pred_mv[j][i][LIST_0][ref][mode][1];
        }
    }
    else if (pdir8==1) // backward
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv8x8 [dir][LIST_1][j][i][0] = all_mv [j][i][LIST_1][bw_ref][mode][0];
          all_mv8x8 [dir][LIST_1][j][i][1] = all_mv [j][i][LIST_1][bw_ref][mode][1];
          pred_mv8x8[dir][LIST_1][j][i][0] = pred_mv[j][i][LIST_1][bw_ref][mode][0];
          pred_mv8x8[dir][LIST_1][j][i][1] = pred_mv[j][i][LIST_1][bw_ref][mode][1];
        }
    }
    else if (pdir8==2) // bidir
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv8x8 [dir][LIST_0][j][i][0] = all_mv [j][i][LIST_0][ref][mode][0];
          all_mv8x8 [dir][LIST_0][j][i][1] = all_mv [j][i][LIST_0][ref][mode][1];
          pred_mv8x8[dir][LIST_0][j][i][0] = pred_mv[j][i][LIST_0][ref][mode][0];
          pred_mv8x8[dir][LIST_0][j][i][1] = pred_mv[j][i][LIST_0][ref][mode][1];
          
          all_mv8x8 [dir][LIST_1][j][i][0] = all_mv [j][i][LIST_1][bw_ref][mode][0];
          all_mv8x8 [dir][LIST_1][j][i][1] = all_mv [j][i][LIST_1][bw_ref][mode][1];
          pred_mv8x8[dir][LIST_1][j][i][0] = pred_mv[j][i][LIST_1][bw_ref][mode][0];
          pred_mv8x8[dir][LIST_1][j][i][1] = pred_mv[j][i][LIST_1][bw_ref][mode][1];
        }
    }
    else
    {
      error("invalid direction mode", 255);
    }
  }
}



/*!
 *************************************************************************************
 * \brief
 *    Store motion vectors of 8x8 partitions of one macroblock
 *************************************************************************************
 */
void StoreMV8x8(int dir)
{
  int block8x8;
  
  int bframe = (img->type == B_SLICE);
  
  for (block8x8=0; block8x8<4; block8x8++)
    StoreMVBlock8x8(dir, block8x8, tr8x8.part8x8mode[block8x8], tr8x8.part8x8fwref[block8x8], 
    tr8x8.part8x8bwref[block8x8], tr8x8.part8x8pdir[block8x8], bframe);
}

/*!
*************************************************************************************
* \brief
*    Restore motion vectors for 8x8 partition
*************************************************************************************
*/
void RestoreMVBlock8x8(int dir, int block8x8, RD_8x8DATA tr, int bframe)
{
  int i, j, i0, j0, ii, jj;
  short ******all_mv  = img->all_mv;
  short ******pred_mv = img->pred_mv;
  short pdir8  = tr.part8x8pdir [block8x8];
  short mode   = tr.part8x8mode [block8x8];
  short ref    = tr.part8x8fwref[block8x8];
  short bw_ref = tr.part8x8bwref[block8x8];
  
  i0 = (block8x8 & 0x01) << 1;
  j0 = (block8x8 >> 1) << 1;
  ii = i0+2;
  jj = j0+2;
  
  if (!bframe)
  {
    if (pdir8>=0) //(mode8!=IBLOCK)&&(mode8!=I16MB))  // && ref != -1)
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv [j][i][LIST_0][ref][4][0] = all_mv8x8 [dir][LIST_0][j][i][0] ;
          all_mv [j][i][LIST_0][ref][4][1] = all_mv8x8 [dir][LIST_0][j][i][1] ;
          pred_mv[j][i][LIST_0][ref][4][0] = pred_mv8x8[dir][LIST_0][j][i][0];
          pred_mv[j][i][LIST_0][ref][4][1] = pred_mv8x8[dir][LIST_0][j][i][1];
        }
    }
  }
  else
  {
    if (pdir8==0) // forward
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv [j][i][LIST_0][ref][mode][0] = all_mv8x8 [dir][LIST_0][j][i][0] ;
          all_mv [j][i][LIST_0][ref][mode][1] = all_mv8x8 [dir][LIST_0][j][i][1] ;
          pred_mv[j][i][LIST_0][ref][mode][0] = pred_mv8x8[dir][LIST_0][j][i][0];
          pred_mv[j][i][LIST_0][ref][mode][1] = pred_mv8x8[dir][LIST_0][j][i][1];
        }
    }
    else if (pdir8==1) // backward
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv [j][i][LIST_1][bw_ref][mode][0] = all_mv8x8 [dir][LIST_1][j][i][0] ;
          all_mv [j][i][LIST_1][bw_ref][mode][1] = all_mv8x8 [dir][LIST_1][j][i][1] ;
          pred_mv[j][i][LIST_1][bw_ref][mode][0] = pred_mv8x8[dir][LIST_1][j][i][0];
          pred_mv[j][i][LIST_1][bw_ref][mode][1] = pred_mv8x8[dir][LIST_1][j][i][1];
        }
    }
    else if (pdir8==2) // bidir
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv [j][i][LIST_0][ref][mode][0] = all_mv8x8 [dir][LIST_0][j][i][0] ;
          all_mv [j][i][LIST_0][ref][mode][1] = all_mv8x8 [dir][LIST_0][j][i][1] ;
          pred_mv[j][i][LIST_0][ref][mode][0] = pred_mv8x8[dir][LIST_0][j][i][0];
          pred_mv[j][i][LIST_0][ref][mode][1] = pred_mv8x8[dir][LIST_0][j][i][1];
          
          all_mv [j][i][LIST_1][bw_ref][mode][0] = all_mv8x8 [dir][LIST_1][j][i][0] ;
          all_mv [j][i][LIST_1][bw_ref][mode][1] = all_mv8x8 [dir][LIST_1][j][i][1] ;
          pred_mv[j][i][LIST_1][bw_ref][mode][0] = pred_mv8x8[dir][LIST_1][j][i][0];
          pred_mv[j][i][LIST_1][bw_ref][mode][1] = pred_mv8x8[dir][LIST_1][j][i][1];
        }
    }
    else
    {
      error("invalid direction mode", 255);
    }
  }
}

/*!
 *************************************************************************************
 * \brief
 *    Restore motion vectors of 8x8 partitions of one macroblock
 *************************************************************************************
 */
void RestoreMV8x8(int dir)
{
  int block8x8;
  
  int bframe = (img->type == B_SLICE);
  
  for (block8x8=0; block8x8<4; block8x8++)
    RestoreMVBlock8x8(dir, block8x8, tr8x8, bframe);   
}


/*!
 *************************************************************************************
 * \brief
 *    Store predictors for 8x8 partition
 *************************************************************************************
 */

void StoreNewMotionVectorsBlock8x8(int dir, int block8x8, int mode, int fw_ref, int bw_ref, int pdir8, int bframe)
{
  int i, j, i0, j0, ii, jj;
  short ******all_mv  = img->all_mv;
  short ******pred_mv = img->pred_mv;
  
  
  i0 = (block8x8 & 0x01) << 1;
  j0 = (block8x8 >> 1) << 1;
  ii = i0+2;
  jj = j0+2;
  
  if (pdir8<0)
  {
    for (j=j0; j<jj; j++)
    {
      memset(&all_mv8x8[dir][LIST_0][j][i0], 0, 2 * 2 * sizeof(short));
      memset(&all_mv8x8[dir][LIST_0][j][i0], 0, 2 * 2 * sizeof(short));
    }
    return;
  }
  
  if (!bframe)
  {
    for (j=j0; j<jj; j++)
    {
      for (i=i0; i<ii; i++)
      {
        all_mv8x8 [dir][LIST_0][j][i][0] = all_mv [j][i][LIST_0][fw_ref][4][0];
        all_mv8x8 [dir][LIST_0][j][i][1] = all_mv [j][i][LIST_0][fw_ref][4][1];
        pred_mv8x8[dir][LIST_0][j][i][0] = pred_mv[j][i][LIST_0][fw_ref][4][0];
        pred_mv8x8[dir][LIST_0][j][i][1] = pred_mv[j][i][LIST_0][fw_ref][4][1];
      }
    }
    return;
  }
  else
  {
    if ((pdir8==0 || pdir8==2))
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv8x8 [dir][LIST_0][j][i][0] = all_mv [j][i][LIST_0][fw_ref][mode][0];
          all_mv8x8 [dir][LIST_0][j][i][1] = all_mv [j][i][LIST_0][fw_ref][mode][1];
          pred_mv8x8[dir][LIST_0][j][i][0] = pred_mv[j][i][LIST_0][fw_ref][mode][0];
          pred_mv8x8[dir][LIST_0][j][i][1] = pred_mv[j][i][LIST_0][fw_ref][mode][1];
        }
    }
    else
    {
      for (j=j0; j<jj; j++)
        memset(&all_mv8x8[dir][LIST_0][j][i0], 0, 2 * 2 * sizeof(short));
    }
    
    if ((pdir8==1 || pdir8==2))
    {
      for (j=j0; j<jj; j++)
        for (i=i0; i<ii; i++)
        {
          all_mv8x8 [dir][LIST_1][j][i][0] = all_mv [j][i][LIST_1][bw_ref][mode][0];
          all_mv8x8 [dir][LIST_1][j][i][1] = all_mv [j][i][LIST_1][bw_ref][mode][1];
          pred_mv8x8[dir][LIST_1][j][i][0] = pred_mv[j][i][LIST_1][bw_ref][mode][0];
          pred_mv8x8[dir][LIST_1][j][i][1] = pred_mv[j][i][LIST_1][bw_ref][mode][1];
        }
    }
    else
    {
      for (j=j0; j<jj; j++)
        memset(&all_mv8x8[dir][LIST_1][j][i0], 0, 2 * 2 * sizeof(short));
    }
  }
}

/*!
 ************************************************************************
 * \brief
 *    Makes the decision if 8x8 tranform will be used (for RD-off)
 ************************************************************************
 */
int GetBestTransformP8x8()
{
  int    block_y, block_x, pic_pix_y, pic_pix_x, i, j, k;
  int    mb_y, mb_x, block8x8;
  int    cost8x8=0, cost4x4=0;
  int    diff4x4[64], *diff_ptr;
  int    diff8x8[64];
  
  if(input->Transform8x8Mode==2) //always allow 8x8 transform
    return 1;
  
  for (block8x8=0; block8x8<4; block8x8++)
  {
    mb_y = (block8x8 >>   1) << 3;
    mb_x = (block8x8 & 0x01) << 3;
    //===== loop over 4x4 blocks =====
    k=0;
    for (block_y=mb_y; block_y<mb_y+8; block_y+=4)
    {
      pic_pix_y = img->opix_y + block_y;
      
      //get cost for transform size 4x4
      for (block_x=mb_x; block_x<mb_x+8; block_x+=4)
      {
        pic_pix_x = img->opix_x + block_x;
        
        //===== get displaced frame difference ======
        diff_ptr=&diff4x4[k];
        for (j=0; j<4; j++)
        {
          for (i=0; i<4; i++, k++)
          {
            //4x4 transform size
            diff4x4[k] = imgY_org[pic_pix_y+j][pic_pix_x+i] - tr4x4.mpr8x8[j+block_y][i+block_x];
            //8x8 transform size
            diff8x8[k] = imgY_org[pic_pix_y+j][pic_pix_x+i] - tr8x8.mpr8x8[j+block_y][i+block_x];
          }
        } 
        
        cost4x4 += SATD (diff_ptr, input->hadamard);
      }
    }    
    cost8x8 += SATD8X8 (diff8x8, input->hadamard);
  }  
  return (cost8x8 < cost4x4);
}

/*!
************************************************************************
* \brief
*    Sets MBAFF RD parameters
************************************************************************
*/
void set_mbaff_parameters()
{
  int  i, j, k;
  Macroblock  *currMB  = &img->mb_data[img->current_mb_nr];
  int         mode     = best_mode;
  int         bframe   = (img->type==B_SLICE);
  char    **ipredmodes = img->ipredmode;
  
  
  //===== reconstruction values =====
  for (j=0; j < MB_BLOCK_SIZE; j++)
    memcpy(rdopt->rec_mbY[j],&enc_picture->imgY[img->pix_y + j][img->pix_x], MB_BLOCK_SIZE * sizeof(imgpel));

  if (img->yuv_format != YUV400)
  {
    for (j=0; j<img->mb_cr_size_y; j++)
    {
      memcpy(rdopt->rec_mbU[j],&enc_picture->imgUV[0][img->pix_c_y + j][img->pix_c_x], img->mb_cr_size_x * sizeof(imgpel));
      memcpy(rdopt->rec_mbV[j],&enc_picture->imgUV[1][img->pix_c_y + j][img->pix_c_x], img->mb_cr_size_x * sizeof(imgpel));
    }
  }
  
  //===== coefficients and cbp =====
  rdopt->mode      = mode;
  rdopt->i16offset = img->i16offset;
  rdopt->cbp       = currMB->cbp;
  rdopt->cbp_blk   = currMB->cbp_blk;
  rdopt->mb_type   = currMB->mb_type;
  
  rdopt->luma_transform_size_8x8_flag = currMB->luma_transform_size_8x8_flag;
  
  if(rdopt->mb_type == 0 && mode != 0)
  {
    mode=0;
    rdopt->mode=0;
  }
  
  for(i=0;i<4+img->num_blk8x8_uv;i++)
  {
    for(j=0;j<4;j++)
      for(k=0;k<2;k++)
        memcpy(rdopt->cofAC[i][j][k], img->cofAC[i][j][k], 65 * sizeof(int));
  }
  
  for(i=0;i<3;i++)
  {
    for(k=0;k<2;k++)
        memcpy(rdopt->cofDC[i][k], img->cofDC[i][k], 18 * sizeof(int));
  }   

  memcpy(rdopt->b8mode,currMB->b8mode, BLOCK_MULTIPLE * sizeof(int));
  memcpy(rdopt->b8pdir,currMB->b8pdir, BLOCK_MULTIPLE * sizeof(int));
  
  //==== reference frames =====
  if (bframe)
  {
    for (j = 0; j < BLOCK_MULTIPLE; j++)
    {
      memcpy(rdopt->refar[LIST_0][j],&enc_picture->ref_idx[LIST_0][img->block_y + j][img->block_x] , BLOCK_MULTIPLE * sizeof(char));
      memcpy(rdopt->refar[LIST_1][j],&enc_picture->ref_idx[LIST_1][img->block_y + j][img->block_x] , BLOCK_MULTIPLE * sizeof(char));
    }
    rdopt->bi_pred_me = currMB->bi_pred_me;
  }
  else
  {
    for (j = 0; j < BLOCK_MULTIPLE; j++)
      memcpy(rdopt->refar[LIST_0][j],&enc_picture->ref_idx[LIST_0][img->block_y + j][img->block_x] , BLOCK_MULTIPLE * sizeof(char));
  }      
  
  memcpy(rdopt->intra_pred_modes,currMB->intra_pred_modes, MB_BLOCK_PARTITIONS * sizeof(char));
  for (j = img->block_y; j < img->block_y + 4; j++)
  {
    memcpy(&rdopt->ipredmode[j][img->block_x],&ipredmodes[j][img->block_x], BLOCK_MULTIPLE * sizeof(char));
  }
}

/*!
************************************************************************
* \brief
*    store coding state (for rd-optimized mode decision), used for 8x8 transformation
************************************************************************
*/
void store_coding_state_cs_cm()
{
  store_coding_state(cs_cm);
}

/*!
************************************************************************
* \brief
*    restore coding state (for rd-optimized mode decision), used for 8x8 transformation
************************************************************************
*/
void reset_coding_state_cs_cm()
{
  reset_coding_state(cs_cm);
}

/*!
************************************************************************
* \brief
*    update rounding offsets based on JVT-N011
************************************************************************
*/
void update_offset_params(int mode, int luma_transform_size_8x8_flag)
{
  int i,j;
  int temp = 0;
  int offsetRange = 1 << (OffsetBits - 1);

  for (j=0; j < MB_BLOCK_SIZE; j++)
    for (i=0; i < MB_BLOCK_SIZE; i++)
    {     
      if ((mode != I4MB)&&(mode != I16MB) && (mode != I8MB) )
      {
        if (img->type == B_SLICE)
        {
          if (!luma_transform_size_8x8_flag )
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[12][temp] += bestInterFAdjust4x4[j][i];
            OffsetList4x4[12][temp] = Clip3(0,offsetRange,OffsetList4x4[12][temp]);

            OffsetList4x4[23][temp] += bestInterFAdjust4x4_addluma[0][j][i];
            OffsetList4x4[23][temp] = Clip3(0,offsetRange,OffsetList4x4[23][temp]);
            OffsetList4x4[24][temp] += bestInterFAdjust4x4_addluma[1][j][i];
            OffsetList4x4[24][temp] = Clip3(0,offsetRange,OffsetList4x4[24][temp]);  /*lliu, 07/13*/
          }
          else
          {
            temp = ((j & 0x07)<<3)+ (i & 0x07);
            OffsetList8x8[4][temp] += bestInterFAdjust8x8[j][i];
            OffsetList8x8[4][temp] = Clip3(0,offsetRange,OffsetList8x8[4][temp]);

            OffsetList8x8[13][temp] += bestInterFAdjust8x8_addluma[0][j][i];
            OffsetList8x8[13][temp] = Clip3(0,offsetRange,OffsetList8x8[13][temp]);  /*lliu, 07/13*/
            OffsetList8x8[14][temp] += bestInterFAdjust8x8_addluma[1][j][i];
            OffsetList8x8[14][temp] = Clip3(0,offsetRange,OffsetList8x8[14][temp]);  /*lliu, 07/13*/
          }
          
          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[13][temp] += bestInterFAdjust4x4Cr[0][j][i];
            OffsetList4x4[13][temp] = Clip3(0,offsetRange,OffsetList4x4[13][temp]);
            OffsetList4x4[14][temp] += bestInterFAdjust4x4Cr[1][j][i];
            OffsetList4x4[14][temp] = Clip3(0,offsetRange,OffsetList4x4[14][temp]);
          }
        }
        else
        {
          if (!luma_transform_size_8x8_flag )
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);    
            OffsetList4x4[9][temp] += bestInterFAdjust4x4[j][i];
            OffsetList4x4[9][temp] = Clip3(0,offsetRange,OffsetList4x4[9][temp]);

            OffsetList4x4[21][temp] += bestInterFAdjust4x4_addluma[0][j][i];
            OffsetList4x4[21][temp] = Clip3(0,offsetRange,OffsetList4x4[21][temp]);  /*lliu, 07/13*/
            OffsetList4x4[22][temp] += bestInterFAdjust4x4_addluma[1][j][i];
            OffsetList4x4[22][temp] = Clip3(0,offsetRange,OffsetList4x4[22][temp]);  /*lliu, 07/13*/
          }
          else
          {
            temp = ((j & 0x07)<<3)+ (i & 0x07);
            OffsetList8x8[3][temp] += bestInterFAdjust8x8[j][i];
            OffsetList8x8[3][temp] = Clip3(0,offsetRange,OffsetList8x8[3][temp]);

            OffsetList8x8[11][temp] += bestInterFAdjust8x8_addluma[0][j][i];
            OffsetList8x8[11][temp] = Clip3(0,offsetRange,OffsetList8x8[11][temp]);  /*lliu, 07/13*/
            OffsetList8x8[12][temp] += bestInterFAdjust8x8_addluma[1][j][i];
            OffsetList8x8[12][temp] = Clip3(0,offsetRange,OffsetList8x8[12][temp]);  /*lliu, 07/13*/
          }
          
          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[10][temp] += bestInterFAdjust4x4Cr[0][j][i];
            OffsetList4x4[10][temp] = Clip3(0,offsetRange,OffsetList4x4[10][temp]);
            OffsetList4x4[11][temp] += bestInterFAdjust4x4Cr[1][j][i];
            OffsetList4x4[11][temp] = Clip3(0,offsetRange,OffsetList4x4[11][temp]);
          }
        }
      }
      else if (mode != I8MB)
      {
        if (img->type == I_SLICE)
        {
          
          temp = ((j & 0x03)<<2)+ (i & 0x03);
          OffsetList4x4[0][temp] += bestIntraFAdjust4x4[j][i];
          OffsetList4x4[0][temp] = Clip3(0,offsetRange,OffsetList4x4[0][temp]);

		  OffsetList4x4[15][temp] += bestIntraFAdjust4x4_addluma[0][j][i];
          OffsetList4x4[15][temp] = Clip3(0,offsetRange,OffsetList4x4[15][temp]);  /*lliu, 07/13*/
		  OffsetList4x4[16][temp] += bestIntraFAdjust4x4_addluma[1][j][i];
          OffsetList4x4[16][temp] = Clip3(0,offsetRange,OffsetList4x4[16][temp]);

          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[1][temp] += bestIntraFAdjust4x4Cr[0][j][i];
            OffsetList4x4[1][temp] = Clip3(0,offsetRange,OffsetList4x4[1][temp]);
            OffsetList4x4[2][temp] += bestIntraFAdjust4x4Cr[1][j][i];
            OffsetList4x4[2][temp] = Clip3(0,offsetRange,OffsetList4x4[2][temp]);
          }
        }
        else if (img->type == B_SLICE)
        {
          temp = ((j & 0x03)<<2)+ (i & 0x03);
          OffsetList4x4[6][temp] += bestIntraFAdjust4x4[j][i];
          OffsetList4x4[6][temp] = Clip3(0,offsetRange,OffsetList4x4[6][temp]);

          OffsetList4x4[19][temp] += bestIntraFAdjust4x4_addluma[0][j][i];
          OffsetList4x4[19][temp] = Clip3(0,offsetRange,OffsetList4x4[19][temp]);  /*lliu, 07/13*/
          OffsetList4x4[20][temp] += bestIntraFAdjust4x4_addluma[1][j][i];
          OffsetList4x4[20][temp] = Clip3(0,offsetRange,OffsetList4x4[20][temp]);  /*lliu, 07/13*/

          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[7][temp] += bestIntraFAdjust4x4Cr[0][j][i];
            OffsetList4x4[7][temp] = Clip3(0,offsetRange,OffsetList4x4[7][temp]);
            OffsetList4x4[8][temp] += bestIntraFAdjust4x4Cr[1][j][i];
            OffsetList4x4[8][temp] = Clip3(0,offsetRange,OffsetList4x4[8][temp]);
          }
        }
        else
        {
          temp = ((j & 0x03)<<2)+ (i & 0x03);
          OffsetList4x4[3][temp] += bestIntraFAdjust4x4[j][i];
          OffsetList4x4[3][temp] = Clip3(0,offsetRange,OffsetList4x4[3][temp]);

          OffsetList4x4[17][temp] += bestIntraFAdjust4x4_addluma[0][j][i];
          OffsetList4x4[17][temp] = Clip3(0,offsetRange,OffsetList4x4[17][temp]); /*lliu, 07/13*/
          OffsetList4x4[18][temp] += bestIntraFAdjust4x4_addluma[1][j][i];
          OffsetList4x4[18][temp] = Clip3(0,offsetRange,OffsetList4x4[18][temp]); /*lliu, 07/13*/

          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[4][temp] += bestIntraFAdjust4x4Cr[0][j][i];
            OffsetList4x4[4][temp] = Clip3(0,offsetRange,OffsetList4x4[4][temp]);
            OffsetList4x4[5][temp] += bestIntraFAdjust4x4Cr[1][j][i];
            OffsetList4x4[5][temp] = Clip3(0,offsetRange,OffsetList4x4[5][temp]);
          }
        }
        
      }
      else
      {
        if (img->type == I_SLICE)
        {
          temp = ((j & 0x07)<<3)+ (i & 0x07);
          OffsetList8x8[0][temp] += bestIntraFAdjust8x8[j][i];
          OffsetList8x8[0][temp] = Clip3(0,offsetRange,OffsetList8x8[0][temp]);

		  OffsetList8x8[5][temp] += bestIntraFAdjust8x8_addluma[0][j][i];
          OffsetList8x8[5][temp] = Clip3(0,offsetRange,OffsetList8x8[5][temp]); /*lliu, 07/13*/
					OffsetList8x8[6][temp] += bestIntraFAdjust8x8_addluma[1][j][i];
          OffsetList8x8[6][temp] = Clip3(0,offsetRange,OffsetList8x8[6][temp]);

          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[1][temp] += bestIntraFAdjust4x4Cr[0][j][i];
            OffsetList4x4[1][temp] = Clip3(0,offsetRange,OffsetList4x4[1][temp]);
            OffsetList4x4[2][temp] += bestIntraFAdjust4x4Cr[1][j][i];
            OffsetList4x4[2][temp] = Clip3(0,offsetRange,OffsetList4x4[2][temp]);
          }
        }
        else if (img->type == B_SLICE)
        {
          temp = ((j & 0x07)<<3)+ (i & 0x07);
          OffsetList8x8[2][temp] += bestIntraFAdjust8x8[j][i];
          OffsetList8x8[2][temp] = Clip3(0,offsetRange,OffsetList8x8[2][temp]);

          OffsetList8x8[9][temp] += bestIntraFAdjust8x8_addluma[0][j][i];
          OffsetList8x8[9][temp] = Clip3(0,offsetRange,OffsetList8x8[9][temp]); /*lliu, 07/13*/
          OffsetList8x8[10][temp] += bestIntraFAdjust8x8_addluma[1][j][i];
          OffsetList8x8[10][temp] = Clip3(0,offsetRange,OffsetList8x8[10][temp]); /*lliu, 07/13*/

          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[7][temp] += bestIntraFAdjust4x4Cr[0][j][i];
            OffsetList4x4[7][temp] = Clip3(0,offsetRange,OffsetList4x4[7][temp]);
            OffsetList4x4[8][temp] += bestIntraFAdjust4x4Cr[1][j][i];
            OffsetList4x4[8][temp] = Clip3(0,offsetRange,OffsetList4x4[8][temp]);
          }
        }
        else
        {
          temp = ((j & 0x07)<<3)+ (i & 0x07);
          OffsetList8x8[1][temp] += bestIntraFAdjust8x8[j][i];
          OffsetList8x8[1][temp] = Clip3(0,offsetRange,OffsetList8x8[1][temp]);

          OffsetList8x8[7][temp] += bestIntraFAdjust8x8_addluma[0][j][i];
          OffsetList8x8[7][temp] = Clip3(0,offsetRange,OffsetList8x8[7][temp]); /*lliu, 07/13*/
          OffsetList8x8[8][temp] += bestIntraFAdjust8x8_addluma[1][j][i];
          OffsetList8x8[8][temp] = Clip3(0,offsetRange,OffsetList8x8[8][temp]); /*lliu, 07/13*/

          if (input->AdaptRndChroma && (i >> 3) ==0 && (j >> 3) == 0)
          {
            temp = ((j & 0x03)<<2)+ (i & 0x03);
            OffsetList4x4[4][temp] += bestIntraFAdjust4x4Cr[0][j][i];
            OffsetList4x4[4][temp] = Clip3(0,offsetRange,OffsetList4x4[4][temp]);
            OffsetList4x4[5][temp] += bestIntraFAdjust4x4Cr[1][j][i];
            OffsetList4x4[5][temp] = Clip3(0,offsetRange,OffsetList4x4[5][temp]);
          }
        }
      }
    }
}

void assign_enc_picture_params(int mode, int best_pdir, int block, int list_offset, int best_fw_ref, int best_bw_ref, int bframe)
{
  int i,j;
  int block_x, block_y;
  short *cur_mv;
  
  if (mode==1)
  {
    if (best_pdir==1)
    {
      for (j=img->block_y+(block&2); j<img->block_y+(block&2) + BLOCK_MULTIPLE; j++)
      {
        block_x = img->block_x+(block&1)*2;
       
        memset(&enc_picture->ref_idx[LIST_0][j][block_x], -1 ,     BLOCK_MULTIPLE * sizeof(char));
        memset(enc_picture->mv      [LIST_0][j][block_x],  0 , 2 * BLOCK_MULTIPLE * sizeof(short));
        for (i=block_x; i<block_x + BLOCK_MULTIPLE; i++)
        {
          enc_picture->ref_pic_id [LIST_0][j][i]    = -1;
        }
      }
    }
    else if (img->bi_pred_me[mode])
    {
      for (j=0; j<BLOCK_MULTIPLE; j++)
      {
        block_y = img->block_y+(block&2)+j;
        block_x = img->block_x+(block&1)*2;
        memset(&enc_picture->ref_idx[LIST_0][block_y][block_x], 0, BLOCK_MULTIPLE * sizeof(char));
        for (i=0; i<BLOCK_MULTIPLE; i++)
        {            
          cur_mv = img->bi_pred_me[mode] == 1 
            ? img->bipred_mv1[i][j][LIST_0][0][mode] 
            : img->bipred_mv2[i][j][LIST_0][0][mode];
          
          enc_picture->ref_pic_id [LIST_0][block_y][block_x + i]    = enc_picture->ref_pic_num[LIST_0 + list_offset][0];  
          enc_picture->mv         [LIST_0][block_y][block_x + i][0] = cur_mv[0];
          enc_picture->mv         [LIST_0][block_y][block_x + i][1] = cur_mv[1];
        }
      }
    }
    else 
    {
      for (j=0; j<BLOCK_MULTIPLE; j++)
      {
        block_y = img->block_y+(block&2)+j;
        block_x = img->block_x+(block&1)*2;
        memset(&enc_picture->ref_idx[LIST_0][block_y][block_x], best_fw_ref , BLOCK_MULTIPLE * sizeof(char));
        for (i=0; i<BLOCK_MULTIPLE; i++)
        {                                
          cur_mv = img->all_mv[j][i][LIST_0][best_fw_ref][mode];

          enc_picture->ref_pic_id [LIST_0][block_y][block_x + i]    = enc_picture->ref_pic_num[LIST_0 + list_offset][best_fw_ref];  
          enc_picture->mv         [LIST_0][block_y][block_x + i][0] = cur_mv[0];
          enc_picture->mv         [LIST_0][block_y][block_x + i][1] = cur_mv[1];
        }          
      }
    }
    
    if (bframe)
    {
      if (best_pdir==0)
      {
        for (j=img->block_y+(block&2); j<img->block_y+(block&2) + BLOCK_MULTIPLE; j++)
        {
          block_x = img->block_x+(block&1)*2;
          memset(&enc_picture->ref_idx[LIST_1][j][block_x], -1 , BLOCK_MULTIPLE * sizeof(char));
          memset(enc_picture->mv[LIST_1][j][block_x], 0 , 2 * BLOCK_MULTIPLE * sizeof(short));
          for (i=block_x; i<block_x + BLOCK_MULTIPLE; i++)
          {
            enc_picture->ref_pic_id [LIST_1][j][i] = -1;
          }
        }
      }
      else
      {
        if (img->bi_pred_me[mode])
        {
          for (j=0; j<BLOCK_MULTIPLE; j++)
          {
            block_y = img->block_y+(block&2)+j;
            block_x = img->block_x+(block&1)*2;
            memset(&enc_picture->ref_idx[LIST_1][block_y][block_x], 0, BLOCK_MULTIPLE * sizeof(char));
            for (i=0; i<BLOCK_MULTIPLE; i++)
            {                     
              cur_mv = img->bi_pred_me[mode] == 1 
                ? img->bipred_mv1[i][j][LIST_1][0][mode] 
                : img->bipred_mv2[i][j][LIST_1][0][mode];
              
              enc_picture->ref_pic_id [LIST_1][block_y][block_x + i] = 
                enc_picture->ref_pic_num[LIST_1 + list_offset][0];
              enc_picture->mv         [LIST_1][block_y][block_x + i][0] = cur_mv[0];
              enc_picture->mv         [LIST_1][block_y][block_x + i][1] = cur_mv[1];
            }
          }
        }
        else 
        {
          for (j=0; j<BLOCK_MULTIPLE; j++)
          {
            block_y = img->block_y+(block&2)+j;
            block_x = img->block_x+(block&1)*2;
            memset(&enc_picture->ref_idx[LIST_1][block_y][block_x], best_bw_ref, BLOCK_MULTIPLE * sizeof(char));
            for (i=0; i<BLOCK_MULTIPLE; i++)
            {                     
             
              enc_picture->ref_pic_id [LIST_1][block_y][block_x + i] = 
                enc_picture->ref_pic_num[LIST_1 + list_offset][best_bw_ref];
              if(best_bw_ref>=0)
              {
                cur_mv = img->all_mv[j][i][LIST_1][best_bw_ref][mode];
                enc_picture->mv[LIST_1][block_y][block_x + i][0] = cur_mv[0];
                enc_picture->mv[LIST_1][block_y][block_x + i][1] = cur_mv[1];
              }
            }            
          }
        }
      }
    }
  }
  else if (mode==2)
  {
    for (j=0; j<2; j++)
    {
      block_y = img->block_y + block * 2 + j;
      for (i=0; i<BLOCK_MULTIPLE; i++)
      {
        block_x = img->block_x + i;
        if (best_pdir==1)
        {
          enc_picture->ref_idx    [LIST_0][block_y][block_x]    = -1;
          enc_picture->ref_pic_id [LIST_0][block_y][block_x]    = -1;
          enc_picture->mv         [LIST_0][block_y][block_x][0] = 0;
          enc_picture->mv         [LIST_0][block_y][block_x][1] = 0;
        }
        else
        {                     
          cur_mv = img->all_mv[j+block*2][i][LIST_0][best_fw_ref][mode];

          enc_picture->ref_idx    [LIST_0][block_y][block_x]    = best_fw_ref;
          enc_picture->ref_pic_id [LIST_0][block_y][block_x]    = 
            enc_picture->ref_pic_num[LIST_0 + list_offset][best_fw_ref];
          enc_picture->mv         [LIST_0][block_y][block_x][0] = cur_mv[0];
          enc_picture->mv         [LIST_0][block_y][block_x][1] = cur_mv[1];
        }
        
        if (bframe)
        {
          if (best_pdir==0)
          {
            enc_picture->ref_idx    [LIST_1][block_y][block_x]    = -1;
            enc_picture->ref_pic_id [LIST_1][block_y][block_x]    = -1;
            enc_picture->mv         [LIST_1][block_y][block_x][0] = 0;
            enc_picture->mv         [LIST_1][block_y][block_x][1] = 0;
          }
          else
          {
            enc_picture->ref_idx[LIST_1][block_y][block_x] = best_bw_ref;
            if(best_bw_ref>=0)
            {
              cur_mv = img->all_mv[j+ block*2][i][LIST_1][best_bw_ref][mode];

              enc_picture->ref_pic_id [LIST_1][block_y][block_x] = 
                enc_picture->ref_pic_num[LIST_1 + list_offset][best_bw_ref];
              enc_picture->mv[LIST_1][block_y][block_x][0] = cur_mv[0];
              enc_picture->mv[LIST_1][block_y][block_x][1] = cur_mv[1];
            }                       
          }
        }
      }
    }
  }
  else
  {
    for (j=0; j<BLOCK_MULTIPLE; j++)
    {
      block_y = img->block_y+j;
      for (i=0; i<2; i++)
      {
        block_x = img->block_x + block*2 + i;
        if (best_pdir==1)
        {
          enc_picture->ref_idx    [LIST_0][block_y][block_x]    = -1;
          enc_picture->ref_pic_id [LIST_0][block_y][block_x]    = -1;
          enc_picture->mv         [LIST_0][block_y][block_x][0] = 0;
          enc_picture->mv         [LIST_0][block_y][block_x][1] = 0;
        }
        else
        {
          cur_mv = img->all_mv[j][block*2+i][LIST_0][best_fw_ref][mode];

          enc_picture->ref_idx    [LIST_0][block_y][block_x] = best_fw_ref;
          enc_picture->ref_pic_id [LIST_0][block_y][block_x] = 
            enc_picture->ref_pic_num[LIST_0 + list_offset][best_fw_ref];          
          enc_picture->mv[LIST_0][block_y][block_x][0] = cur_mv[0];
          enc_picture->mv[LIST_0][block_y][block_x][1] = cur_mv[1];
        }
        
        if (bframe)
        {
          if (best_pdir==0)
          {
            enc_picture->ref_idx    [LIST_1][block_y][block_x]    = -1;
            enc_picture->ref_pic_id [LIST_1][block_y][block_x]    = -1;
            enc_picture->mv         [LIST_1][block_y][block_x][0] = 0;
            enc_picture->mv         [LIST_1][block_y][block_x][1] = 0;
          }
          else
          {
            enc_picture->ref_idx[LIST_1][block_y][block_x] = best_bw_ref;
            if(best_bw_ref>=0)
            {
              cur_mv = img->all_mv[j][block*2+i][LIST_1][best_bw_ref][mode];
              enc_picture->ref_pic_id [LIST_1][block_y][block_x] = 
                enc_picture->ref_pic_num[LIST_1 + list_offset][best_bw_ref];
              
              enc_picture->mv[LIST_1][block_y][block_x][0] = cur_mv[0];
              enc_picture->mv[LIST_1][block_y][block_x][1] = cur_mv[1];
            }
          }
        }
      }
    }
  }
}

void update_refresh_map(int intra, int intra1, Macroblock *currMB)
{
  if (input->RestrictRef==1)
  {
    // Modified for Fast Mode Decision. Inchoon Choi, SungKyunKwan Univ.
    if (input->rdopt<2)
    {
      refresh_map[2*img->mb_y  ][2*img->mb_x  ] = (intra ? 1 : 0);
      refresh_map[2*img->mb_y  ][2*img->mb_x+1] = (intra ? 1 : 0);
      refresh_map[2*img->mb_y+1][2*img->mb_x  ] = (intra ? 1 : 0);
      refresh_map[2*img->mb_y+1][2*img->mb_x+1] = (intra ? 1 : 0);
    }
    else if (input->rdopt==3)
    {
      refresh_map[2*img->mb_y  ][2*img->mb_x  ] = (intra1==0 && (currMB->mb_type==I16MB || currMB->mb_type==I4MB) ? 1 : 0);
      refresh_map[2*img->mb_y  ][2*img->mb_x+1] = (intra1==0 && (currMB->mb_type==I16MB || currMB->mb_type==I4MB) ? 1 : 0);
      refresh_map[2*img->mb_y+1][2*img->mb_x  ] = (intra1==0 && (currMB->mb_type==I16MB || currMB->mb_type==I4MB) ? 1 : 0);
      refresh_map[2*img->mb_y+1][2*img->mb_x+1] = (intra1==0 && (currMB->mb_type==I16MB || currMB->mb_type==I4MB) ? 1 : 0);
    }
  }
  else if (input->RestrictRef==2)
  {
    refresh_map[2*img->mb_y  ][2*img->mb_x  ] = (currMB->mb_type==I16MB || currMB->mb_type==I4MB ? 1 : 0);
    refresh_map[2*img->mb_y  ][2*img->mb_x+1] = (currMB->mb_type==I16MB || currMB->mb_type==I4MB ? 1 : 0);
    refresh_map[2*img->mb_y+1][2*img->mb_x  ] = (currMB->mb_type==I16MB || currMB->mb_type==I4MB ? 1 : 0);
    refresh_map[2*img->mb_y+1][2*img->mb_x+1] = (currMB->mb_type==I16MB || currMB->mb_type==I4MB ? 1 : 0);
  }
}  

