/*!
*************************************************************************************
* \brief
* Mode Decision for a macroblock
*************************************************************************************
*/
void encode_one_macroblock_low (Macroblock *currMB)
{
int block, mode, i, 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 pix_x, pix_y;
int prev_mb_nr = FmoGetPreviousMBNr(img->current_mb_nr);
Macroblock* prevMB = (prev_mb_nr >= 0) ? &img->mb_data[prev_mb_nr]:NULL ;
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 (*curr_mpr)[16] = img->mpr[0];
int tmp_8x8_flag, tmp_no_mbpart;
// Fast Mode Decision
short 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++)
{
bi_pred_me = 0;
img->bi_pred_me[mode]=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);
// Finally, if mode 16x16, compute cost for bipredictive ME vectore
if (params->BiPredMotionEstimation && mode == 1)
{
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, &bi_pred_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);
//----- set reference frame and direction parameters -----
if (mode==3)
{
best8x8l0ref [3][block ] = best8x8l0ref [3][ block+2] = best_ref[LIST_0];
best8x8pdir [3][block ] = best8x8pdir [3][ block+2] = best_pdir;
best8x8l1ref [3][block ] = best8x8l1ref [3][ block+2] = best_ref[LIST_1];
}
else if (mode==2)
{
best8x8l0ref [2][2*block] = best8x8l0ref [2][2*block+1] = best_ref[LIST_0];
best8x8pdir [2][2*block] = best8x8pdir [2][2*block+1] = best_pdir;
best8x8l1ref [2][2*block] = best8x8l1ref [2][2*block+1] = best_ref[LIST_1];
}
else
{
memset(&best8x8l0ref [1][0], best_ref[LIST_0], 4 * sizeof(char));
memset(&best8x8l1ref [1][0], best_ref[LIST_1], 4 * sizeof(char));
best8x8pdir [1][0] = best8x8pdir [1][1] = best8x8pdir [1][2] = best8x8pdir [1][3] = best_pdir;
}
//--- 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]);
} // 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.cost8x8 = INT_MAX;
tr4x4.cost8x8 = INT_MAX;
//===== store coding state of macroblock =====
store_coding_state (currMB, cs_mb);
currMB->all_blk_8x8 = -1;
if (params->Transform8x8Mode)
{
tr8x8.cost8x8 = 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);
best8x8mode [block] = tr8x8.part8x8mode [block];
best8x8pdir [P8x8][block] = tr8x8.part8x8pdir [block];
best8x8l0ref[P8x8][block] = tr8x8.part8x8l0ref[block];
best8x8l1ref[P8x8][block] = tr8x8.part8x8l1ref[block];
}
// 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.cost8x8 = 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);
best8x8mode [block] = tr4x4.part8x8mode [block];
best8x8pdir [P8x8][block] = tr4x4.part8x8pdir [block];
best8x8l0ref[P8x8][block] = tr4x4.part8x8l0ref[block];
best8x8l1ref[P8x8][block] = tr4x4.part8x8l1ref[block];
}
//--- 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, curr_mpr);
//check cost for P8x8 for non-rdopt mode
if (tr4x4.cost8x8 < min_cost || tr8x8.cost8x8 < min_cost)
{
best_mode = P8x8;
if (params->Transform8x8Mode == 2)
{
min_cost = tr8x8.cost8x8;
currMB->luma_transform_size_8x8_flag=1;
}
else if (params->Transform8x8Mode)
{
if (tr8x8.cost8x8 < tr4x4.cost8x8)
{
min_cost = tr8x8.cost8x8;
currMB->luma_transform_size_8x8_flag=1;
}
else if(tr4x4.cost8x8 < tr8x8.cost8x8)
{
min_cost = tr4x4.cost8x8;
currMB->luma_transform_size_8x8_flag=0;
}
else
{
if (GetBestTransformP8x8() == 0)
{
min_cost = tr4x4.cost8x8;
currMB->luma_transform_size_8x8_flag=0;
}
else
{
min_cost = tr8x8.cost8x8;
currMB->luma_transform_size_8x8_flag=1;
}
}
}
else
{
min_cost = tr4x4.cost8x8;
currMB->luma_transform_size_8x8_flag=0;
}
}// if ((tr4x4.cost8x8 < min_cost || tr8x8.cost8x8 < min_cost))
giRDOpt_B8OnlyFlag = 0;
}
else // if (enc_mb.valid[P8x8])
{
tr4x4.cost8x8 = 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, curr_mpr);
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++)
{
pix_y = img->pix_y + j;
for(i=0; i<MB_BLOCK_SIZE; i++)
{
pix_x = img->pix_x + i;
temp_imgY[j][i] = enc_picture->imgY[pix_y][pix_x];
}
}
if (img->P444_joined)
{
for(j=0; j<MB_BLOCK_SIZE; j++)
{
pix_y = img->pix_y + j;
for(i=0; i<MB_BLOCK_SIZE; i++)
{
pix_x = img->pix_x + i;
temp_imgU[j][i] = enc_picture->imgUV[0][pix_y][pix_x];
temp_imgV[j][i] = enc_picture->imgUV[1][pix_y][pix_x];
}
}
}
//Rate control
if (params->RCEnable)
rc_store_diff(img->opix_x, img->opix_y, curr_mpr);
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);
if (rd_cost <= min_rd_cost)
{
currMB->cbp = temp_cpb;
//Rate control
if (params->RCEnable)
rc_store_diff(img->opix_x, img->opix_y, curr_mpr);
min_rd_cost = rd_cost;
best_mode = I4MB;
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;
}
//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);
if (img->P444_joined)
{
select_plane(PLANE_U);
cmp_cbp[1] = pDCT_16x16(currMB, PLANE_U, i16mode);
select_plane(PLANE_V);
cmp_cbp[2] = pDCT_16x16(currMB, PLANE_V, i16mode);
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);
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,curr_mpr);
}
}
}
//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);
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->ref_idx[LIST_0][img->block_y][img->block_x] == 0 &&
enc_picture->mv [LIST_0][img->block_y][img->block_x][0] == allmvs[0] &&
enc_picture->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->ref_idx[LIST_0][img->block_y][img->block_x] == 0 &&
enc_picture->mv [LIST_0][img->block_y][img->block_x][0] == allmvs[0] &&
enc_picture->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);
}
}
/*!
*************************************************************************************
* \brief
* Mode Decision for a macroblock with error resilience
*************************************************************************************
*/
void encode_one_macroblock_highloss (Macroblock *currMB)
{
int max_index = 9;
int rerun, block, index, mode, i, j, ctr16x16;
char best_pdir;
RD_PARAMS enc_mb;
double min_rdcost = 1e30;
double min_dcost = 1e30;
char best_ref[2] = {0, -1};
int bmcost[5] = {INT_MAX};
int cost=0;
int min_cost = INT_MAX, cost_direct=0, have_direct=0, i16mode=0;
int intra1 = 0;
int cost8x8_direct = 0;
int mb_available_up;
int mb_available_left;
int mb_available_up_left;
int best8x8l0ref, best8x8l1ref;
int is_cavlc = (img->currentSlice->symbol_mode == CAVLC);
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];
short runs = (short) (params->RestrictRef==1 && (pslice || (bslice && img->nal_reference_idc>0)) ? 2 : 1);
int prev_mb_nr = FmoGetPreviousMBNr(img->current_mb_nr);
Macroblock* prevMB = (prev_mb_nr >= 0) ? &img->mb_data[prev_mb_nr]:NULL ;
imgpel (*mb_pred)[16] = img->mb_pred[0];
Block8x8Info *b8x8info = img->b8x8info;
short min_chroma_pred_mode, max_chroma_pred_mode;
short inter_skip = 0;
short bipred_me = 0;
double min_rate = 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);
// Perform multiple encodings if rdopt with losses is enabled
for (rerun=0; rerun<runs; rerun++)
{
if (runs==2)
params->rdopt= (rerun==0) ? 1 : 3;
// 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])
{
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++)
if (cost < min_cost)
{
best_mode = (short) mode;
min_cost = cost;
if (params->CtxAdptLagrangeMult == 1)
{
adjust_mb16x16_cost(cost);
}
}
} // if (enc_mb.valid[mode])
} // for (mode=1; mode<4; mode++)
if (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
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 =========
//-------------------------------------------------------------------------
{
if ((img->yuv_format != YUV400) && !IS_INDEPENDENT(params))
{
// precompute all new chroma intra prediction modes
IntraChromaPrediction(currMB, &mb_available_up, &mb_available_left, &mb_available_up_left);
if (params->FastCrIntraDecision )
{
IntraChromaRDDecision(currMB, enc_mb);
min_chroma_pred_mode = (short) currMB->c_ipred_mode;
max_chroma_pred_mode = (short) currMB->c_ipred_mode;
}
else
{
min_chroma_pred_mode = DC_PRED_8;
max_chroma_pred_mode = PLANE_8;
}
}
else
{
min_chroma_pred_mode = DC_PRED_8;
max_chroma_pred_mode = DC_PRED_8;
}
for (currMB->c_ipred_mode=min_chroma_pred_mode; currMB->c_ipred_mode<=max_chroma_pred_mode; currMB->c_ipred_mode++)
{
// bypass if c_ipred_mode is not allowed
if ( (img->yuv_format != YUV400) &&
( ((!intra || !params->IntraDisableInterOnly) && params->ChromaIntraDisable == 1 && currMB->c_ipred_mode!=DC_PRED_8)
|| (currMB->c_ipred_mode == VERT_PRED_8 && !mb_available_up)
|| (currMB->c_ipred_mode == HOR_PRED_8 && !mb_available_left)
|| (currMB->c_ipred_mode == PLANE_8 && (!mb_available_left || !mb_available_up || !mb_available_up_left))))
continue;
//===== GET BEST MACROBLOCK MODE =====
for (ctr16x16=0, index=0; index < max_index; index++)
{
mode = mb_mode_table[index];
if (img->yuv_format != YUV400)
{
i16mode = 0;
}
//--- for INTER16x16 check all prediction directions ---
if (mode==1 && bslice)
{
update_prediction_for_mode16x16(b8x8info, ctr16x16, &index);
ctr16x16++;
}
// Skip intra modes in inter slices if best mode is inter <P8x8 with cbp equal to 0
if (params->SkipIntraInInterSlices && !intra && mode >= I4MB && best_mode <=3 && currMB->cbp == 0)
continue;
// check if weights are in valid range for biprediction.
if (bslice && active_pps->weighted_bipred_idc == 1 && mode < P8x8)
{
int cur_blk, cur_comp;
int weight_sum;
Boolean invalid_mode = FALSE;
for (cur_blk = 0; cur_blk < 4; cur_blk ++)
{
if (b8x8info->best8x8pdir[mode][cur_blk] == 2)
{
for (cur_comp = 0; cur_comp < (active_sps->chroma_format_idc == YUV400 ? 1 : 3) ; cur_comp ++)
{
best8x8l0ref = (int) b8x8info->best8x8l0ref[mode][cur_blk];
best8x8l1ref = (int) b8x8info->best8x8l1ref[mode][cur_blk];
weight_sum = wbp_weight[0][best8x8l0ref][best8x8l1ref][cur_comp] + wbp_weight[1][best8x8l0ref][best8x8l1ref][cur_comp];
if (weight_sum < -128 || weight_sum > 127)
{
invalid_mode = TRUE;
break;
}
}
if (invalid_mode == TRUE)
break;
}
}
if (invalid_mode == TRUE)
continue;
}
if (enc_mb.valid[mode])
compute_mode_RD_cost(mode, currMB, &enc_mb, &min_rdcost, &min_dcost, &min_rate, i16mode, bslice, &inter_skip, is_cavlc);
}// for (ctr16x16=0, index=0; index<max_index; index++)
}// for (currMB->c_ipred_mode=DC_PRED_8; currMB->c_ipred_mode<=max_chroma_pred_mode; currMB->c_ipred_mode++)
#ifdef BEST_NZ_COEFF
for (j=0;j<4;j++)
for (i=0; i<(4+img->num_blk8x8_uv); i++)
img->nz_coeff[img->current_mb_nr][j][i] = gaaiMBAFF_NZCoeff[j][i];
#endif
}
if (rerun==0)
intra1 = IS_INTRA(currMB);
} // for (rerun=0; rerun<runs; rerun++)
//===== 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 ======
//---------------------------------------------------------------------------
update_qp_cbp_tmp(currMB, cbp, best_mode);
set_stored_macroblock_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_rdcost;
rdopt->min_dcost = min_dcost;
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);
}
}
