md_low.c
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上传日期:2021-12-09
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文件大小:24k
源码类别:
Audio
开发平台:
Visual C++
- /*!
- ***************************************************************************
- * file md_low.c
- *
- * brief
- * Main macroblock mode decision functions and helpers
- *
- **************************************************************************
- */
- #include <math.h>
- #include <limits.h>
- #include <float.h>
- #include "global.h"
- #include "rdopt_coding_state.h"
- #include "mb_access.h"
- #include "intrarefresh.h"
- #include "image.h"
- #include "transform8x8.h"
- #include "ratectl.h"
- #include "mode_decision.h"
- #include "fmo.h"
- #include "me_umhex.h"
- #include "me_umhexsmp.h"
- #include "macroblock.h"
- #include "q_around.h"
- //==== MODULE PARAMETERS ====
- static imgpel temp_imgY[16][16]; // to temp store the Y data for 8x8 transform
- static imgpel temp_imgU[16][16];
- static imgpel temp_imgV[16][16];
- /*!
- *************************************************************************************
- * brief
- * Mode Decision for a macroblock
- *************************************************************************************
- */
- void encode_one_macroblock_low (Macroblock *currMB)
- {
- int block, mode, i=0, j, k, dummy;
- char best_pdir;
- RD_PARAMS enc_mb;
- char best_ref[2] = {0, -1};
- int bmcost[5] = {INT_MAX};
- double rd_cost = 0, min_rd_cost = 1e30;
- int cost = 0;
- int min_cost = INT_MAX, cost_direct=0, have_direct=0, i16mode=0;
- int intra1 = 0;
- int temp_cpb = 0;
- int best_transform_flag = 0;
- int cost8x8_direct = 0;
- short islice = (short) (img->type==I_SLICE);
- short bslice = (short) (img->type==B_SLICE);
- short pslice = (short) ((img->type==P_SLICE) || (img->type==SP_SLICE));
- short intra = (short) (islice || (pslice && img->mb_y==img->mb_y_upd && img->mb_y_upd!=img->mb_y_intra));
- int lambda_mf[3];
- int prev_mb_nr = FmoGetPreviousMBNr(img->current_mb_nr);
- Macroblock* prevMB = (prev_mb_nr >= 0) ? &img->mb_data[prev_mb_nr]:NULL ;
- Block8x8Info *b8x8info = img->b8x8info;
- char **ipredmodes = img->ipredmode;
- short *allmvs = params->IntraProfile ? NULL: img->all_mv[0][0][0][0][0];
- int ****i4p; //for non-RD-opt. mode
- imgpel (*mb_pred)[16] = img->mb_pred[0];
- int is_cavlc = (img->currentSlice->symbol_mode == CAVLC);
- int tmp_8x8_flag, tmp_no_mbpart;
- // Fast Mode Decision
- short bipred_me, inter_skip = 0;
- if(params->SearchMode == UM_HEX)
- {
- UMHEX_decide_intrabk_SAD();
- }
- else if (params->SearchMode == UM_HEX_SIMPLE)
- {
- smpUMHEX_decide_intrabk_SAD();
- }
- intra |= RandomIntra (img->current_mb_nr); // Forced Pseudo-Random Intra
- //===== Setup Macroblock encoding parameters =====
- init_enc_mb_params(currMB, &enc_mb, intra, bslice);
- // reset chroma intra predictor to default
- currMB->c_ipred_mode = DC_PRED_8;
- //===== S T O R E C O D I N G S T A T E =====
- //---------------------------------------------------
- store_coding_state (currMB, cs_cm);
- if (!intra)
- {
- //===== set direct motion vectors =====
- best_mode = 1;
- if (bslice)
- {
- Get_Direct_Motion_Vectors (currMB);
- }
- if (params->CtxAdptLagrangeMult == 1)
- {
- get_initial_mb16x16_cost(currMB);
- }
- //===== MOTION ESTIMATION FOR 16x16, 16x8, 8x16 BLOCKS =====
- for (min_cost=INT_MAX, mode=1; mode<4; mode++)
- {
- bipred_me = 0;
- b8x8info->bipred8x8me[mode][0] = 0;
- if (enc_mb.valid[mode] && !inter_skip)
- {
- for (cost=0, block=0; block<(mode==1?1:2); block++)
- {
- update_lambda_costs(&enc_mb, lambda_mf);
- PartitionMotionSearch (currMB, mode, block, lambda_mf);
- //--- set 4x4 block indizes (for getting MV) ---
- j = (block==1 && mode==2 ? 2 : 0);
- i = (block==1 && mode==3 ? 2 : 0);
- //--- get cost and reference frame for List 0 prediction ---
- bmcost[LIST_0] = INT_MAX;
- list_prediction_cost(currMB, LIST_0, block, mode, &enc_mb, bmcost, best_ref);
- if (bslice)
- {
- //--- get cost and reference frame for List 1 prediction ---
- bmcost[LIST_1] = INT_MAX;
- list_prediction_cost(currMB, LIST_1, block, mode, &enc_mb, bmcost, best_ref);
- // Compute bipredictive cost between best list 0 and best list 1 references
- list_prediction_cost(currMB, BI_PRED, block, mode, &enc_mb, bmcost, best_ref);
- // currently Bi prediction ME is only supported for modes 1, 2, 3
- if (is_bipred_enabled(mode))
- {
- list_prediction_cost(currMB, BI_PRED_L0, block, mode, &enc_mb, bmcost, 0);
- list_prediction_cost(currMB, BI_PRED_L1, block, mode, &enc_mb, bmcost, 0);
- }
- else
- {
- bmcost[BI_PRED_L0] = INT_MAX;
- bmcost[BI_PRED_L1] = INT_MAX;
- }
- // Determine prediction list based on mode cost
- determine_prediction_list(mode, bmcost, best_ref, &best_pdir, &cost, &bipred_me);
- }
- else // if (bslice)
- {
- best_pdir = 0;
- cost += bmcost[LIST_0];
- }
- assign_enc_picture_params(mode, best_pdir, block, enc_mb.list_offset[LIST_0], best_ref[LIST_0], best_ref[LIST_1], bslice, bipred_me);
- //----- set reference frame and direction parameters -----
- set_block8x8_info(b8x8info, mode, block, best_ref, best_pdir, bipred_me);
- //--- set reference frames and motion vectors ---
- if (mode>1 && block==0)
- SetRefAndMotionVectors (currMB, block, mode, best_pdir, best_ref[LIST_0], best_ref[LIST_1], bipred_me);
- } // for (block=0; block<(mode==1?1:2); block++)
- currMB->luma_transform_size_8x8_flag = 0;
- if (params->Transform8x8Mode) //for inter rd-off, set 8x8 to do 8x8 transform
- {
- SetModesAndRefframeForBlocks(currMB, mode);
- currMB->luma_transform_size_8x8_flag = TransformDecision(currMB, -1, &cost);
- }
- if ((!inter_skip) && (cost < min_cost))
- {
- best_mode = (short) mode;
- min_cost = cost;
- best_transform_flag = currMB->luma_transform_size_8x8_flag;
- if (params->CtxAdptLagrangeMult == 1)
- {
- adjust_mb16x16_cost(cost);
- }
- }
- } // if (enc_mb.valid[mode])
- } // for (mode=1; mode<4; mode++)
- if ((!inter_skip) && enc_mb.valid[P8x8])
- {
- giRDOpt_B8OnlyFlag = 1;
- tr8x8.mb_p8x8_cost = INT_MAX;
- tr4x4.mb_p8x8_cost = INT_MAX;
- //===== store coding state of macroblock =====
- store_coding_state (currMB, cs_mb);
- currMB->all_blk_8x8 = -1;
- if (params->Transform8x8Mode)
- {
- tr8x8.mb_p8x8_cost = 0;
- //===========================================================
- // Check 8x8 partition with transform size 8x8
- //===========================================================
- //===== LOOP OVER 8x8 SUB-PARTITIONS (Motion Estimation & Mode Decision) =====
- for (cost_direct=cbp8x8=cbp_blk8x8=cnt_nonz_8x8=0, block = 0; block < 4; block++)
- {
- submacroblock_mode_decision(&enc_mb, &tr8x8, currMB, cofAC8x8ts[0][block], cofAC8x8ts[1][block], cofAC8x8ts[2][block],
- &have_direct, bslice, block, &cost_direct, &cost, &cost8x8_direct, 1, is_cavlc);
- set_subblock8x8_info(b8x8info, P8x8, block, &tr8x8);
- }
- // following params could be added in RD_8x8DATA structure
- cbp8_8x8ts = cbp8x8;
- cbp_blk8_8x8ts = cbp_blk8x8;
- cnt_nonz8_8x8ts = cnt_nonz_8x8;
- currMB->luma_transform_size_8x8_flag = 0; //switch to 4x4 transform size
- //--- re-set coding state (as it was before 8x8 block coding) ---
- //reset_coding_state (currMB, cs_mb);
- }// if (params->Transform8x8Mode)
- if (params->Transform8x8Mode != 2)
- {
- tr4x4.mb_p8x8_cost = 0;
- //=================================================================
- // Check 8x8, 8x4, 4x8 and 4x4 partitions with transform size 4x4
- //=================================================================
- //===== LOOP OVER 8x8 SUB-PARTITIONS (Motion Estimation & Mode Decision) =====
- for (cost_direct=cbp8x8=cbp_blk8x8=cnt_nonz_8x8=0, block=0; block<4; block++)
- {
- submacroblock_mode_decision(&enc_mb, &tr4x4, currMB, cofAC8x8[block], cofAC8x8CbCr[0][block], cofAC8x8CbCr[1][block],
- &have_direct, bslice, block, &cost_direct, &cost, &cost8x8_direct, 0, is_cavlc);
- set_subblock8x8_info(b8x8info, P8x8, block, &tr4x4);
- }
- //--- re-set coding state (as it was before 8x8 block coding) ---
- // reset_coding_state (currMB, cs_mb);
- }// if (params->Transform8x8Mode != 2)
- //--- re-set coding state (as it was before 8x8 block coding) ---
- reset_coding_state (currMB, cs_mb);
- // This is not enabled yet since mpr has reverse order.
- if (params->RCEnable)
- rc_store_diff(img->opix_x, img->opix_y, mb_pred);
- //check cost for P8x8 for non-rdopt mode
- if (tr4x4.mb_p8x8_cost < min_cost || tr8x8.mb_p8x8_cost < min_cost)
- {
- best_mode = P8x8;
- if (img->AdaptiveRounding)
- store_adaptive_rounding_parameters_luma (currMB, best_mode);
- if (params->Transform8x8Mode == 2)
- {
- min_cost = tr8x8.mb_p8x8_cost;
- currMB->luma_transform_size_8x8_flag=1;
- }
- else if (params->Transform8x8Mode)
- {
- if (tr8x8.mb_p8x8_cost < tr4x4.mb_p8x8_cost)
- {
- min_cost = tr8x8.mb_p8x8_cost;
- currMB->luma_transform_size_8x8_flag=1;
- }
- else if(tr4x4.mb_p8x8_cost < tr8x8.mb_p8x8_cost)
- {
- min_cost = tr4x4.mb_p8x8_cost;
- currMB->luma_transform_size_8x8_flag=0;
- }
- else
- {
- if (GetBestTransformP8x8() == 0)
- {
- min_cost = tr4x4.mb_p8x8_cost;
- currMB->luma_transform_size_8x8_flag=0;
- }
- else
- {
- min_cost = tr8x8.mb_p8x8_cost;
- currMB->luma_transform_size_8x8_flag=1;
- }
- }
- }
- else
- {
- min_cost = tr4x4.mb_p8x8_cost;
- currMB->luma_transform_size_8x8_flag=0;
- }
- }// if ((tr4x4.mb_p8x8_cost < min_cost || tr8x8.mb_p8x8_cost < min_cost))
- giRDOpt_B8OnlyFlag = 0;
- }
- else // if (enc_mb.valid[P8x8])
- {
- tr4x4.mb_p8x8_cost = INT_MAX;
- }
- // Find a motion vector for the Skip mode
- if(pslice)
- FindSkipModeMotionVector (currMB);
- }
- else // if (!intra)
- {
- min_cost = INT_MAX;
- }
- //========= C H O O S E B E S T M A C R O B L O C K M O D E =========
- //-------------------------------------------------------------------------
- tmp_8x8_flag = currMB->luma_transform_size_8x8_flag; //save 8x8_flag
- tmp_no_mbpart = currMB->NoMbPartLessThan8x8Flag; //save no-part-less
- if ((img->yuv_format != YUV400) && (img->yuv_format != YUV444))
- // precompute all chroma intra prediction modes
- IntraChromaPrediction(currMB, NULL, NULL, NULL);
- if (enc_mb.valid[0] && bslice) // check DIRECT MODE
- {
- if(have_direct)
- {
- switch(params->Transform8x8Mode)
- {
- case 1: // Mixture of 8x8 & 4x4 transform
- cost = ((cost8x8_direct < cost_direct) || !(enc_mb.valid[5] && enc_mb.valid[6] && enc_mb.valid[7]))
- ? cost8x8_direct : cost_direct;
- break;
- case 2: // 8x8 Transform only
- cost = cost8x8_direct;
- break;
- default: // 4x4 Transform only
- cost = cost_direct;
- break;
- }
- }
- else
- { //!have_direct
- cost = GetDirectCostMB (currMB, bslice);
- }
- if (cost!=INT_MAX)
- {
- cost -= (int)floor(16*enc_mb.lambda_md+0.4999);
- }
- if (cost <= min_cost)
- {
- if(active_sps->direct_8x8_inference_flag && params->Transform8x8Mode)
- {
- if(params->Transform8x8Mode==2)
- currMB->luma_transform_size_8x8_flag=1;
- else
- {
- if(cost8x8_direct < cost_direct)
- currMB->luma_transform_size_8x8_flag=1;
- else
- currMB->luma_transform_size_8x8_flag=0;
- }
- }
- else
- currMB->luma_transform_size_8x8_flag=0;
- //Rate control
- if (params->RCEnable)
- rc_store_diff(img->opix_x, img->opix_y, mb_pred);
- min_cost = cost;
- best_mode = 0;
- tmp_8x8_flag = currMB->luma_transform_size_8x8_flag;
- }
- else
- {
- currMB->luma_transform_size_8x8_flag = tmp_8x8_flag; // restore if not best
- currMB->NoMbPartLessThan8x8Flag = tmp_no_mbpart; // restore if not best
- }
- }
- min_rd_cost = (double) min_cost;
- if (enc_mb.valid[I8MB]) // check INTRA8x8
- {
- currMB->luma_transform_size_8x8_flag = 1; // at this point cost will ALWAYS be less than min_cost
- currMB->mb_type = I8MB;
- temp_cpb = Mode_Decision_for_new_Intra8x8Macroblock (currMB, enc_mb.lambda_md, &rd_cost);
- if (rd_cost <= min_rd_cost) //HYU_NOTE. bug fix. 08/15/07
- {
- currMB->cbp = temp_cpb;
- if (img->P444_joined)
- {
- curr_cbp[0] = cmp_cbp[1];
- curr_cbp[1] = cmp_cbp[2];
- }
- if(enc_mb.valid[I4MB]) //KHHan. bug fix. Oct.15.2007
- {
- //coeffs
- if (params->Transform8x8Mode != 2)
- {
- i4p=cofAC; cofAC=img->cofAC; img->cofAC=i4p;
- }
- }
- for(j=0; j<MB_BLOCK_SIZE; j++)
- {
- memcpy(temp_imgY[j], &enc_picture->imgY[img->pix_y + j][img->pix_x], MB_BLOCK_SIZE * sizeof (imgpel));
- }
- if (img->P444_joined)
- {
- for(j=0; j<MB_BLOCK_SIZE; j++)
- {
- memcpy(temp_imgU[j], &enc_picture->imgUV[0][img->pix_y + j][img->pix_x], MB_BLOCK_SIZE * sizeof (imgpel));
- memcpy(temp_imgV[j], &enc_picture->imgUV[1][img->pix_y + j][img->pix_x], MB_BLOCK_SIZE * sizeof (imgpel));
- }
- }
- //Rate control
- if (params->RCEnable)
- rc_store_diff(img->opix_x, img->opix_y, mb_pred);
- min_rd_cost = rd_cost;
- best_mode = I8MB;
- tmp_8x8_flag = currMB->luma_transform_size_8x8_flag;
- }
- else
- {
- currMB->luma_transform_size_8x8_flag = tmp_8x8_flag; // restore if not best
- if (img->P444_joined)
- {
- cmp_cbp[1] = curr_cbp[0];
- cmp_cbp[2] = curr_cbp[1];
- currMB->cbp |= cmp_cbp[1];
- currMB->cbp |= cmp_cbp[2];
- cmp_cbp[1] = currMB->cbp;
- cmp_cbp[2] = currMB->cbp;
- }
- }
- }
- if (enc_mb.valid[I4MB]) // check INTRA4x4
- {
- currMB->luma_transform_size_8x8_flag = 0;
- currMB->mb_type = I4MB;
- temp_cpb = Mode_Decision_for_Intra4x4Macroblock (currMB, enc_mb.lambda_md, &rd_cost, is_cavlc);
- if (rd_cost <= min_rd_cost)
- {
- currMB->cbp = temp_cpb;
- //Rate control
- if (params->RCEnable)
- rc_store_diff(img->opix_x, img->opix_y, mb_pred);
- min_rd_cost = rd_cost;
- best_mode = I4MB;
- tmp_8x8_flag = currMB->luma_transform_size_8x8_flag;
- if (img->AdaptiveRounding)
- store_adaptive_rounding_parameters_luma (currMB, best_mode);
- }
- else
- {
- currMB->luma_transform_size_8x8_flag = tmp_8x8_flag; // restore if not best
- if (img->P444_joined)
- {
- cmp_cbp[1] = curr_cbp[0];
- cmp_cbp[2] = curr_cbp[1];
- currMB->cbp |= cmp_cbp[1];
- currMB->cbp |= cmp_cbp[2];
- cmp_cbp[1] = currMB->cbp;
- cmp_cbp[2] = currMB->cbp;
- }
- //coeffs
- i4p=cofAC; cofAC=img->cofAC; img->cofAC=i4p;
- }
- }
- if (enc_mb.valid[I16MB]) // check INTRA16x16
- {
- currMB->luma_transform_size_8x8_flag = 0;
- intrapred_16x16 (currMB, PLANE_Y);
- if (img->P444_joined)
- {
- select_plane(PLANE_U);
- intrapred_16x16 (currMB, PLANE_U);
- select_plane(PLANE_V);
- intrapred_16x16 (currMB, PLANE_V);
- select_plane(PLANE_Y);
- }
- switch(params->FastIntra16x16)
- {
- case 0:
- default:
- find_sad_16x16 = find_sad_16x16_JM;
- break;
- }
- rd_cost = find_sad_16x16 (currMB, &i16mode);
- if (rd_cost < min_rd_cost)
- {
- //Rate control
- if (params->RCEnable)
- rc_store_diff(img->opix_x,img->opix_y,img->mpr_16x16[0][i16mode]);
- best_mode = I16MB;
- min_rd_cost = rd_cost;
- currMB->cbp = pDCT_16x16 (currMB, PLANE_Y, i16mode, is_cavlc);
- if (img->AdaptiveRounding)
- store_adaptive_rounding_parameters_luma (currMB, best_mode);
- if (img->P444_joined)
- {
- select_plane(PLANE_U);
- cmp_cbp[1] = pDCT_16x16(currMB, PLANE_U, i16mode, is_cavlc);
- select_plane(PLANE_V);
- cmp_cbp[2] = pDCT_16x16(currMB, PLANE_V, i16mode, is_cavlc);
- select_plane(PLANE_Y);
- currMB->cbp |= cmp_cbp[1];
- currMB->cbp |= cmp_cbp[2];
- cmp_cbp[1] = currMB->cbp;
- cmp_cbp[2] = currMB->cbp;
- }
- }
- else
- {
- currMB->luma_transform_size_8x8_flag = tmp_8x8_flag; // restore
- currMB->NoMbPartLessThan8x8Flag = tmp_no_mbpart; // restore
- }
- }
- intra1 = IS_INTRA(currMB);
- //===== S E T F I N A L M A C R O B L O C K P A R A M E T E R S ======
- //---------------------------------------------------------------------------
- {
- //===== set parameters for chosen mode =====
- SetModesAndRefframeForBlocks (currMB, best_mode);
- if (best_mode==P8x8)
- {
- if (currMB->luma_transform_size_8x8_flag && (cbp8_8x8ts == 0) && params->Transform8x8Mode != 2)
- currMB->luma_transform_size_8x8_flag = 0;
- SetCoeffAndReconstruction8x8 (currMB);
- memset(currMB->intra_pred_modes, DC_PRED, MB_BLOCK_PARTITIONS * sizeof(char));
- for (k=0, j = img->block_y; j < img->block_y + BLOCK_MULTIPLE; j++)
- memset(&ipredmodes[j][img->block_x], DC_PRED, BLOCK_MULTIPLE * sizeof(char));
- }
- else
- {
- //===== set parameters for chosen mode =====
- if (best_mode == 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));
- //--- restore reconstruction for 8x8 transform ---
- for(j=0; j<MB_BLOCK_SIZE; j++)
- {
- memcpy(&enc_picture->imgY[img->pix_y + j][img->pix_x],temp_imgY[j], MB_BLOCK_SIZE * sizeof(imgpel));
- }
- if (img->P444_joined)
- {
- for(j=0; j<MB_BLOCK_SIZE; j++)
- {
- memcpy(&enc_picture->imgUV[0][img->pix_y + j][img->pix_x],temp_imgU[j], MB_BLOCK_SIZE * sizeof(imgpel));
- memcpy(&enc_picture->imgUV[1][img->pix_y + j][img->pix_x],temp_imgV[j], MB_BLOCK_SIZE * sizeof(imgpel));
- }
- }
- }
- if ((best_mode!=I4MB)&&(best_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(&ipredmodes[j][img->block_x],DC_PRED, BLOCK_MULTIPLE * sizeof(char));
- if (best_mode!=I16MB)
- {
- if((best_mode>=1) && (best_mode<=3))
- currMB->luma_transform_size_8x8_flag = best_transform_flag;
- LumaResidualCoding (currMB, is_cavlc);
- if (img->AdaptiveRounding)
- store_adaptive_rounding_parameters_luma (currMB, best_mode);
- if (img->P444_joined)
- {
- if((currMB->cbp==0 && cmp_cbp[1] == 0 && cmp_cbp[2] == 0) &&(best_mode==0))
- currMB->luma_transform_size_8x8_flag = 0;
- }
- else if((currMB->cbp==0)&&(best_mode==0))
- currMB->luma_transform_size_8x8_flag = 0;
- //Rate control
- if (params->RCEnable)
- rc_store_diff(img->opix_x,img->opix_y,mb_pred);
- }
- }
- }
- //check luma cbp for transform size flag
- if (((currMB->cbp&15) == 0) && !(IS_OLDINTRA(currMB) || currMB->mb_type == I8MB))
- currMB->luma_transform_size_8x8_flag = 0;
- // precompute all chroma intra prediction modes
- if ((img->yuv_format != YUV400) && (img->yuv_format != YUV444))
- IntraChromaPrediction(currMB, NULL, NULL, NULL);
- img->i16offset = 0;
- dummy = 0;
- if ((img->yuv_format != YUV400) && (img->yuv_format != YUV444))
- ChromaResidualCoding (currMB, is_cavlc);
- if (img->AdaptiveRounding)
- store_adaptive_rounding_parameters_chroma (currMB, best_mode);
- if (best_mode==I16MB)
- {
- img->i16offset = I16Offset (currMB->cbp, i16mode);
- }
- SetMotionVectorsMB (currMB, bslice);
- //===== check for SKIP mode =====
- if(img->P444_joined)
- {
- if ((pslice) && best_mode==1 && currMB->cbp==0 && cmp_cbp[1] == 0 && cmp_cbp[2] == 0 &&
- enc_picture->motion.ref_idx[LIST_0][img->block_y][img->block_x] == 0 &&
- enc_picture->motion.mv [LIST_0][img->block_y][img->block_x][0] == allmvs[0] &&
- enc_picture->motion.mv [LIST_0][img->block_y][img->block_x][1] == allmvs[1])
- {
- currMB->mb_type = currMB->b8mode[0] = currMB->b8mode[1] = currMB->b8mode[2] = currMB->b8mode[3] = 0;
- currMB->luma_transform_size_8x8_flag = 0;
- }
- }
- else if ((pslice) && best_mode==1 && currMB->cbp==0 &&
- enc_picture->motion.ref_idx[LIST_0][img->block_y][img->block_x] == 0 &&
- enc_picture->motion.mv [LIST_0][img->block_y][img->block_x][0] == allmvs[0] &&
- enc_picture->motion.mv [LIST_0][img->block_y][img->block_x][1] == allmvs[1])
- {
- currMB->mb_type = currMB->b8mode[0] = currMB->b8mode[1] = currMB->b8mode[2] = currMB->b8mode[3] = 0;
- currMB->luma_transform_size_8x8_flag = 0;
- }
- if (img->MbaffFrameFlag || (params->UseRDOQuant && params->RDOQ_QP_Num > 1))
- set_mbaff_parameters(currMB);
- }
- // Rate control
- if(params->RCEnable && params->RCUpdateMode <= MAX_RC_MODE)
- rc_store_mad(currMB);
- update_qp_cbp(currMB, best_mode);
- rdopt->min_rdcost = min_rd_cost;
- rdopt->min_dcost = min_rd_cost;
- if ( (img->MbaffFrameFlag)
- && (img->current_mb_nr%2)
- && (currMB->mb_type ? 0:((bslice) ? !currMB->cbp:1)) // bottom is skip
- && (prevMB->mb_type ? 0:((bslice) ? !prevMB->cbp:1))
- && !(field_flag_inference(currMB) == enc_mb.curr_mb_field)) // top is skip
- {
- rdopt->min_rdcost = 1e30; // don't allow coding of a MB pair as skip if wrong inference
- }
- //===== Decide if this MB will restrict the reference frames =====
- if (params->RestrictRef)
- update_refresh_map(intra, intra1, currMB);
- if(params->SearchMode == UM_HEX)
- {
- UMHEX_skip_intrabk_SAD(best_mode, listXsize[enc_mb.list_offset[LIST_0]]);
- }
- else if(params->SearchMode == UM_HEX_SIMPLE)
- {
- smpUMHEX_skip_intrabk_SAD(best_mode, listXsize[enc_mb.list_offset[LIST_0]]);
- }
- //--- constrain intra prediction ---
- if(params->UseConstrainedIntraPred && (img->type==P_SLICE || img->type==B_SLICE))
- {
- img->intra_block[img->current_mb_nr] = IS_INTRA(currMB);
- }
- /*update adaptive rounding offset params*/
- if (img->AdaptiveRounding)
- {
- update_offset_params(currMB, best_mode, currMB->luma_transform_size_8x8_flag);
- }
- }