LCOV - code coverage report
Current view: top level - media/libvpx/libvpx/vp9/encoder - vp9_pickmode.c (source / functions) Hit Total Coverage
Test: output.info Lines: 0 1202 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 22 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :  *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
       3             :  *
       4             :  *  Use of this source code is governed by a BSD-style license
       5             :  *  that can be found in the LICENSE file in the root of the source
       6             :  *  tree. An additional intellectual property rights grant can be found
       7             :  *  in the file PATENTS.  All contributing project authors may
       8             :  *  be found in the AUTHORS file in the root of the source tree.
       9             :  */
      10             : 
      11             : #include <assert.h>
      12             : #include <limits.h>
      13             : #include <math.h>
      14             : #include <stdio.h>
      15             : 
      16             : #include "./vp9_rtcd.h"
      17             : #include "./vpx_dsp_rtcd.h"
      18             : 
      19             : #include "vpx/vpx_codec.h"
      20             : #include "vpx_dsp/vpx_dsp_common.h"
      21             : #include "vpx_mem/vpx_mem.h"
      22             : #include "vpx_ports/mem.h"
      23             : 
      24             : #include "vp9/common/vp9_blockd.h"
      25             : #include "vp9/common/vp9_common.h"
      26             : #include "vp9/common/vp9_mvref_common.h"
      27             : #include "vp9/common/vp9_pred_common.h"
      28             : #include "vp9/common/vp9_reconinter.h"
      29             : #include "vp9/common/vp9_reconintra.h"
      30             : #include "vp9/common/vp9_scan.h"
      31             : 
      32             : #include "vp9/encoder/vp9_cost.h"
      33             : #include "vp9/encoder/vp9_encoder.h"
      34             : #include "vp9/encoder/vp9_pickmode.h"
      35             : #include "vp9/encoder/vp9_ratectrl.h"
      36             : #include "vp9/encoder/vp9_rd.h"
      37             : 
      38             : typedef struct {
      39             :   uint8_t *data;
      40             :   int stride;
      41             :   int in_use;
      42             : } PRED_BUFFER;
      43             : 
      44             : static const int pos_shift_16x16[4][4] = {
      45             :   { 9, 10, 13, 14 }, { 11, 12, 15, 16 }, { 17, 18, 21, 22 }, { 19, 20, 23, 24 }
      46             : };
      47             : 
      48           0 : static int mv_refs_rt(VP9_COMP *cpi, const VP9_COMMON *cm, const MACROBLOCK *x,
      49             :                       const MACROBLOCKD *xd, const TileInfo *const tile,
      50             :                       MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
      51             :                       int_mv *mv_ref_list, int_mv *base_mv, int mi_row,
      52             :                       int mi_col, int use_base_mv) {
      53           0 :   const int *ref_sign_bias = cm->ref_frame_sign_bias;
      54           0 :   int i, refmv_count = 0;
      55             : 
      56           0 :   const POSITION *const mv_ref_search = mv_ref_blocks[mi->sb_type];
      57             : 
      58           0 :   int different_ref_found = 0;
      59           0 :   int context_counter = 0;
      60           0 :   int const_motion = 0;
      61             : 
      62             :   // Blank the reference vector list
      63           0 :   memset(mv_ref_list, 0, sizeof(*mv_ref_list) * MAX_MV_REF_CANDIDATES);
      64             : 
      65             :   // The nearest 2 blocks are treated differently
      66             :   // if the size < 8x8 we get the mv from the bmi substructure,
      67             :   // and we also need to keep a mode count.
      68           0 :   for (i = 0; i < 2; ++i) {
      69           0 :     const POSITION *const mv_ref = &mv_ref_search[i];
      70           0 :     if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
      71           0 :       const MODE_INFO *const candidate_mi =
      72           0 :           xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride];
      73             :       // Keep counts for entropy encoding.
      74           0 :       context_counter += mode_2_counter[candidate_mi->mode];
      75           0 :       different_ref_found = 1;
      76             : 
      77           0 :       if (candidate_mi->ref_frame[0] == ref_frame)
      78           0 :         ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 0, mv_ref->col, -1),
      79             :                         refmv_count, mv_ref_list, Done);
      80             :     }
      81             :   }
      82             : 
      83           0 :   const_motion = 1;
      84             : 
      85             :   // Check the rest of the neighbors in much the same way
      86             :   // as before except we don't need to keep track of sub blocks or
      87             :   // mode counts.
      88           0 :   for (; i < MVREF_NEIGHBOURS && !refmv_count; ++i) {
      89           0 :     const POSITION *const mv_ref = &mv_ref_search[i];
      90           0 :     if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
      91           0 :       const MODE_INFO *const candidate_mi =
      92           0 :           xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride];
      93           0 :       different_ref_found = 1;
      94             : 
      95           0 :       if (candidate_mi->ref_frame[0] == ref_frame)
      96           0 :         ADD_MV_REF_LIST(candidate_mi->mv[0], refmv_count, mv_ref_list, Done);
      97             :     }
      98             :   }
      99             : 
     100             :   // Since we couldn't find 2 mvs from the same reference frame
     101             :   // go back through the neighbors and find motion vectors from
     102             :   // different reference frames.
     103           0 :   if (different_ref_found && !refmv_count) {
     104           0 :     for (i = 0; i < MVREF_NEIGHBOURS; ++i) {
     105           0 :       const POSITION *mv_ref = &mv_ref_search[i];
     106           0 :       if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
     107           0 :         const MODE_INFO *const candidate_mi =
     108           0 :             xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride];
     109             : 
     110             :         // If the candidate is INTRA we don't want to consider its mv.
     111           0 :         IF_DIFF_REF_FRAME_ADD_MV(candidate_mi, ref_frame, ref_sign_bias,
     112             :                                  refmv_count, mv_ref_list, Done);
     113             :       }
     114             :     }
     115             :   }
     116           0 :   if (use_base_mv &&
     117           0 :       !cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame &&
     118             :       ref_frame == LAST_FRAME) {
     119             :     // Get base layer mv.
     120           0 :     MV_REF *candidate =
     121           0 :         &cm->prev_frame
     122           0 :              ->mvs[(mi_col >> 1) + (mi_row >> 1) * (cm->mi_cols >> 1)];
     123           0 :     if (candidate->mv[0].as_int != INVALID_MV) {
     124           0 :       base_mv->as_mv.row = (candidate->mv[0].as_mv.row * 2);
     125           0 :       base_mv->as_mv.col = (candidate->mv[0].as_mv.col * 2);
     126           0 :       clamp_mv_ref(&base_mv->as_mv, xd);
     127             :     } else {
     128           0 :       base_mv->as_int = INVALID_MV;
     129             :     }
     130             :   }
     131             : 
     132             : Done:
     133             : 
     134           0 :   x->mbmi_ext->mode_context[ref_frame] = counter_to_context[context_counter];
     135             : 
     136             :   // Clamp vectors
     137           0 :   for (i = 0; i < MAX_MV_REF_CANDIDATES; ++i)
     138           0 :     clamp_mv_ref(&mv_ref_list[i].as_mv, xd);
     139             : 
     140           0 :   return const_motion;
     141             : }
     142             : 
     143           0 : static int combined_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
     144             :                                   BLOCK_SIZE bsize, int mi_row, int mi_col,
     145             :                                   int_mv *tmp_mv, int *rate_mv,
     146             :                                   int64_t best_rd_sofar, int use_base_mv) {
     147           0 :   MACROBLOCKD *xd = &x->e_mbd;
     148           0 :   MODE_INFO *mi = xd->mi[0];
     149           0 :   struct buf_2d backup_yv12[MAX_MB_PLANE] = { { 0, 0 } };
     150           0 :   const int step_param = cpi->sf.mv.fullpel_search_step_param;
     151           0 :   const int sadpb = x->sadperbit16;
     152             :   MV mvp_full;
     153           0 :   const int ref = mi->ref_frame[0];
     154           0 :   const MV ref_mv = x->mbmi_ext->ref_mvs[ref][0].as_mv;
     155             :   MV center_mv;
     156             :   uint32_t dis;
     157             :   int rate_mode;
     158           0 :   const MvLimits tmp_mv_limits = x->mv_limits;
     159           0 :   int rv = 0;
     160             :   int cost_list[5];
     161           0 :   const YV12_BUFFER_CONFIG *scaled_ref_frame =
     162             :       vp9_get_scaled_ref_frame(cpi, ref);
     163           0 :   if (scaled_ref_frame) {
     164             :     int i;
     165             :     // Swap out the reference frame for a version that's been scaled to
     166             :     // match the resolution of the current frame, allowing the existing
     167             :     // motion search code to be used without additional modifications.
     168           0 :     for (i = 0; i < MAX_MB_PLANE; i++) backup_yv12[i] = xd->plane[i].pre[0];
     169           0 :     vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL);
     170             :   }
     171           0 :   vp9_set_mv_search_range(&x->mv_limits, &ref_mv);
     172             : 
     173           0 :   assert(x->mv_best_ref_index[ref] <= 2);
     174           0 :   if (x->mv_best_ref_index[ref] < 2)
     175           0 :     mvp_full = x->mbmi_ext->ref_mvs[ref][x->mv_best_ref_index[ref]].as_mv;
     176             :   else
     177           0 :     mvp_full = x->pred_mv[ref];
     178             : 
     179           0 :   mvp_full.col >>= 3;
     180           0 :   mvp_full.row >>= 3;
     181             : 
     182           0 :   if (!use_base_mv)
     183           0 :     center_mv = ref_mv;
     184             :   else
     185           0 :     center_mv = tmp_mv->as_mv;
     186             : 
     187           0 :   vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param, sadpb,
     188             :                         cond_cost_list(cpi, cost_list), &center_mv,
     189             :                         &tmp_mv->as_mv, INT_MAX, 0);
     190             : 
     191           0 :   x->mv_limits = tmp_mv_limits;
     192             : 
     193             :   // calculate the bit cost on motion vector
     194           0 :   mvp_full.row = tmp_mv->as_mv.row * 8;
     195           0 :   mvp_full.col = tmp_mv->as_mv.col * 8;
     196             : 
     197           0 :   *rate_mv = vp9_mv_bit_cost(&mvp_full, &ref_mv, x->nmvjointcost, x->mvcost,
     198             :                              MV_COST_WEIGHT);
     199             : 
     200           0 :   rate_mode =
     201           0 :       cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref]][INTER_OFFSET(NEWMV)];
     202           0 :   rv =
     203           0 :       !(RDCOST(x->rdmult, x->rddiv, (*rate_mv + rate_mode), 0) > best_rd_sofar);
     204             : 
     205           0 :   if (rv) {
     206           0 :     const int subpel_force_stop = use_base_mv && cpi->sf.base_mv_aggressive
     207             :                                       ? 2
     208           0 :                                       : cpi->sf.mv.subpel_force_stop;
     209           0 :     cpi->find_fractional_mv_step(
     210             :         x, &tmp_mv->as_mv, &ref_mv, cpi->common.allow_high_precision_mv,
     211           0 :         x->errorperbit, &cpi->fn_ptr[bsize], subpel_force_stop,
     212             :         cpi->sf.mv.subpel_iters_per_step, cond_cost_list(cpi, cost_list),
     213           0 :         x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref], NULL, 0, 0);
     214           0 :     *rate_mv = vp9_mv_bit_cost(&tmp_mv->as_mv, &ref_mv, x->nmvjointcost,
     215             :                                x->mvcost, MV_COST_WEIGHT);
     216             :   }
     217             : 
     218           0 :   if (scaled_ref_frame) {
     219             :     int i;
     220           0 :     for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i];
     221             :   }
     222           0 :   return rv;
     223             : }
     224             : 
     225           0 : static void block_variance(const uint8_t *src, int src_stride,
     226             :                            const uint8_t *ref, int ref_stride, int w, int h,
     227             :                            unsigned int *sse, int *sum, int block_size,
     228             : #if CONFIG_VP9_HIGHBITDEPTH
     229             :                            int use_highbitdepth, vpx_bit_depth_t bd,
     230             : #endif
     231             :                            uint32_t *sse8x8, int *sum8x8, uint32_t *var8x8) {
     232           0 :   int i, j, k = 0;
     233             : 
     234           0 :   *sse = 0;
     235           0 :   *sum = 0;
     236             : 
     237           0 :   for (i = 0; i < h; i += block_size) {
     238           0 :     for (j = 0; j < w; j += block_size) {
     239             : #if CONFIG_VP9_HIGHBITDEPTH
     240             :       if (use_highbitdepth) {
     241             :         switch (bd) {
     242             :           case VPX_BITS_8:
     243             :             vpx_highbd_8_get8x8var(src + src_stride * i + j, src_stride,
     244             :                                    ref + ref_stride * i + j, ref_stride,
     245             :                                    &sse8x8[k], &sum8x8[k]);
     246             :             break;
     247             :           case VPX_BITS_10:
     248             :             vpx_highbd_10_get8x8var(src + src_stride * i + j, src_stride,
     249             :                                     ref + ref_stride * i + j, ref_stride,
     250             :                                     &sse8x8[k], &sum8x8[k]);
     251             :             break;
     252             :           case VPX_BITS_12:
     253             :             vpx_highbd_12_get8x8var(src + src_stride * i + j, src_stride,
     254             :                                     ref + ref_stride * i + j, ref_stride,
     255             :                                     &sse8x8[k], &sum8x8[k]);
     256             :             break;
     257             :         }
     258             :       } else {
     259             :         vpx_get8x8var(src + src_stride * i + j, src_stride,
     260             :                       ref + ref_stride * i + j, ref_stride, &sse8x8[k],
     261             :                       &sum8x8[k]);
     262             :       }
     263             : #else
     264           0 :       vpx_get8x8var(src + src_stride * i + j, src_stride,
     265           0 :                     ref + ref_stride * i + j, ref_stride, &sse8x8[k],
     266           0 :                     &sum8x8[k]);
     267             : #endif
     268           0 :       *sse += sse8x8[k];
     269           0 :       *sum += sum8x8[k];
     270           0 :       var8x8[k] = sse8x8[k] - (uint32_t)(((int64_t)sum8x8[k] * sum8x8[k]) >> 6);
     271           0 :       k++;
     272             :     }
     273             :   }
     274           0 : }
     275             : 
     276           0 : static void calculate_variance(int bw, int bh, TX_SIZE tx_size,
     277             :                                unsigned int *sse_i, int *sum_i,
     278             :                                unsigned int *var_o, unsigned int *sse_o,
     279             :                                int *sum_o) {
     280           0 :   const BLOCK_SIZE unit_size = txsize_to_bsize[tx_size];
     281           0 :   const int nw = 1 << (bw - b_width_log2_lookup[unit_size]);
     282           0 :   const int nh = 1 << (bh - b_height_log2_lookup[unit_size]);
     283           0 :   int i, j, k = 0;
     284             : 
     285           0 :   for (i = 0; i < nh; i += 2) {
     286           0 :     for (j = 0; j < nw; j += 2) {
     287           0 :       sse_o[k] = sse_i[i * nw + j] + sse_i[i * nw + j + 1] +
     288           0 :                  sse_i[(i + 1) * nw + j] + sse_i[(i + 1) * nw + j + 1];
     289           0 :       sum_o[k] = sum_i[i * nw + j] + sum_i[i * nw + j + 1] +
     290           0 :                  sum_i[(i + 1) * nw + j] + sum_i[(i + 1) * nw + j + 1];
     291           0 :       var_o[k] = sse_o[k] - (uint32_t)(((int64_t)sum_o[k] * sum_o[k]) >>
     292           0 :                                        (b_width_log2_lookup[unit_size] +
     293           0 :                                         b_height_log2_lookup[unit_size] + 6));
     294           0 :       k++;
     295             :     }
     296             :   }
     297           0 : }
     298             : 
     299           0 : static void model_rd_for_sb_y_large(VP9_COMP *cpi, BLOCK_SIZE bsize,
     300             :                                     MACROBLOCK *x, MACROBLOCKD *xd,
     301             :                                     int *out_rate_sum, int64_t *out_dist_sum,
     302             :                                     unsigned int *var_y, unsigned int *sse_y,
     303             :                                     int mi_row, int mi_col, int *early_term) {
     304             :   // Note our transform coeffs are 8 times an orthogonal transform.
     305             :   // Hence quantizer step is also 8 times. To get effective quantizer
     306             :   // we need to divide by 8 before sending to modeling function.
     307             :   unsigned int sse;
     308             :   int rate;
     309             :   int64_t dist;
     310           0 :   struct macroblock_plane *const p = &x->plane[0];
     311           0 :   struct macroblockd_plane *const pd = &xd->plane[0];
     312           0 :   const uint32_t dc_quant = pd->dequant[0];
     313           0 :   const uint32_t ac_quant = pd->dequant[1];
     314           0 :   const int64_t dc_thr = dc_quant * dc_quant >> 6;
     315           0 :   const int64_t ac_thr = ac_quant * ac_quant >> 6;
     316             :   unsigned int var;
     317             :   int sum;
     318           0 :   int skip_dc = 0;
     319             : 
     320           0 :   const int bw = b_width_log2_lookup[bsize];
     321           0 :   const int bh = b_height_log2_lookup[bsize];
     322           0 :   const int num8x8 = 1 << (bw + bh - 2);
     323           0 :   unsigned int sse8x8[64] = { 0 };
     324           0 :   int sum8x8[64] = { 0 };
     325           0 :   unsigned int var8x8[64] = { 0 };
     326             :   TX_SIZE tx_size;
     327             :   int i, k;
     328             : #if CONFIG_VP9_HIGHBITDEPTH
     329             :   const vpx_bit_depth_t bd = cpi->common.bit_depth;
     330             : #endif
     331             :   // Calculate variance for whole partition, and also save 8x8 blocks' variance
     332             :   // to be used in following transform skipping test.
     333           0 :   block_variance(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride,
     334             :                  4 << bw, 4 << bh, &sse, &sum, 8,
     335             : #if CONFIG_VP9_HIGHBITDEPTH
     336             :                  cpi->common.use_highbitdepth, bd,
     337             : #endif
     338             :                  sse8x8, sum8x8, var8x8);
     339           0 :   var = sse - (unsigned int)(((int64_t)sum * sum) >> (bw + bh + 4));
     340             : 
     341           0 :   *var_y = var;
     342           0 :   *sse_y = sse;
     343             : 
     344           0 :   if (cpi->common.tx_mode == TX_MODE_SELECT) {
     345           0 :     if (sse > (var << 2))
     346           0 :       tx_size = VPXMIN(max_txsize_lookup[bsize],
     347             :                        tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
     348             :     else
     349           0 :       tx_size = TX_8X8;
     350             : 
     351           0 :     if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&
     352           0 :         cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id))
     353           0 :       tx_size = TX_8X8;
     354           0 :     else if (tx_size > TX_16X16)
     355           0 :       tx_size = TX_16X16;
     356             :   } else {
     357           0 :     tx_size = VPXMIN(max_txsize_lookup[bsize],
     358             :                      tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
     359             :   }
     360             : 
     361           0 :   assert(tx_size >= TX_8X8);
     362           0 :   xd->mi[0]->tx_size = tx_size;
     363             : 
     364             :   // Evaluate if the partition block is a skippable block in Y plane.
     365             :   {
     366           0 :     unsigned int sse16x16[16] = { 0 };
     367           0 :     int sum16x16[16] = { 0 };
     368           0 :     unsigned int var16x16[16] = { 0 };
     369           0 :     const int num16x16 = num8x8 >> 2;
     370             : 
     371           0 :     unsigned int sse32x32[4] = { 0 };
     372           0 :     int sum32x32[4] = { 0 };
     373           0 :     unsigned int var32x32[4] = { 0 };
     374           0 :     const int num32x32 = num8x8 >> 4;
     375             : 
     376           0 :     int ac_test = 1;
     377           0 :     int dc_test = 1;
     378           0 :     const int num = (tx_size == TX_8X8)
     379             :                         ? num8x8
     380           0 :                         : ((tx_size == TX_16X16) ? num16x16 : num32x32);
     381           0 :     const unsigned int *sse_tx =
     382             :         (tx_size == TX_8X8) ? sse8x8
     383           0 :                             : ((tx_size == TX_16X16) ? sse16x16 : sse32x32);
     384           0 :     const unsigned int *var_tx =
     385             :         (tx_size == TX_8X8) ? var8x8
     386           0 :                             : ((tx_size == TX_16X16) ? var16x16 : var32x32);
     387             : 
     388             :     // Calculate variance if tx_size > TX_8X8
     389           0 :     if (tx_size >= TX_16X16)
     390           0 :       calculate_variance(bw, bh, TX_8X8, sse8x8, sum8x8, var16x16, sse16x16,
     391             :                          sum16x16);
     392           0 :     if (tx_size == TX_32X32)
     393           0 :       calculate_variance(bw, bh, TX_16X16, sse16x16, sum16x16, var32x32,
     394             :                          sse32x32, sum32x32);
     395             : 
     396             :     // Skipping test
     397           0 :     x->skip_txfm[0] = SKIP_TXFM_NONE;
     398           0 :     for (k = 0; k < num; k++)
     399             :       // Check if all ac coefficients can be quantized to zero.
     400           0 :       if (!(var_tx[k] < ac_thr || var == 0)) {
     401           0 :         ac_test = 0;
     402           0 :         break;
     403             :       }
     404             : 
     405           0 :     for (k = 0; k < num; k++)
     406             :       // Check if dc coefficient can be quantized to zero.
     407           0 :       if (!(sse_tx[k] - var_tx[k] < dc_thr || sse == var)) {
     408           0 :         dc_test = 0;
     409           0 :         break;
     410             :       }
     411             : 
     412           0 :     if (ac_test) {
     413           0 :       x->skip_txfm[0] = SKIP_TXFM_AC_ONLY;
     414             : 
     415           0 :       if (dc_test) x->skip_txfm[0] = SKIP_TXFM_AC_DC;
     416           0 :     } else if (dc_test) {
     417           0 :       skip_dc = 1;
     418             :     }
     419             :   }
     420             : 
     421           0 :   if (x->skip_txfm[0] == SKIP_TXFM_AC_DC) {
     422           0 :     int skip_uv[2] = { 0 };
     423             :     unsigned int var_uv[2];
     424             :     unsigned int sse_uv[2];
     425             : 
     426           0 :     *out_rate_sum = 0;
     427           0 :     *out_dist_sum = sse << 4;
     428             : 
     429             :     // Transform skipping test in UV planes.
     430           0 :     for (i = 1; i <= 2; i++) {
     431           0 :       struct macroblock_plane *const p = &x->plane[i];
     432           0 :       struct macroblockd_plane *const pd = &xd->plane[i];
     433           0 :       const TX_SIZE uv_tx_size = get_uv_tx_size(xd->mi[0], pd);
     434           0 :       const BLOCK_SIZE unit_size = txsize_to_bsize[uv_tx_size];
     435           0 :       const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, pd);
     436           0 :       const int uv_bw = b_width_log2_lookup[uv_bsize];
     437           0 :       const int uv_bh = b_height_log2_lookup[uv_bsize];
     438           0 :       const int sf = (uv_bw - b_width_log2_lookup[unit_size]) +
     439           0 :                      (uv_bh - b_height_log2_lookup[unit_size]);
     440           0 :       const uint32_t uv_dc_thr = pd->dequant[0] * pd->dequant[0] >> (6 - sf);
     441           0 :       const uint32_t uv_ac_thr = pd->dequant[1] * pd->dequant[1] >> (6 - sf);
     442           0 :       int j = i - 1;
     443             : 
     444           0 :       vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, i);
     445           0 :       var_uv[j] = cpi->fn_ptr[uv_bsize].vf(
     446           0 :           p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse_uv[j]);
     447             : 
     448           0 :       if ((var_uv[j] < uv_ac_thr || var_uv[j] == 0) &&
     449           0 :           (sse_uv[j] - var_uv[j] < uv_dc_thr || sse_uv[j] == var_uv[j]))
     450           0 :         skip_uv[j] = 1;
     451             :       else
     452             :         break;
     453             :     }
     454             : 
     455             :     // If the transform in YUV planes are skippable, the mode search checks
     456             :     // fewer inter modes and doesn't check intra modes.
     457           0 :     if (skip_uv[0] & skip_uv[1]) {
     458           0 :       *early_term = 1;
     459             :     }
     460             : 
     461           0 :     return;
     462             :   }
     463             : 
     464           0 :   if (!skip_dc) {
     465             : #if CONFIG_VP9_HIGHBITDEPTH
     466             :     vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
     467             :                                  dc_quant >> (xd->bd - 5), &rate, &dist);
     468             : #else
     469           0 :     vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
     470             :                                  dc_quant >> 3, &rate, &dist);
     471             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     472             :   }
     473             : 
     474           0 :   if (!skip_dc) {
     475           0 :     *out_rate_sum = rate >> 1;
     476           0 :     *out_dist_sum = dist << 3;
     477             :   } else {
     478           0 :     *out_rate_sum = 0;
     479           0 :     *out_dist_sum = (sse - var) << 4;
     480             :   }
     481             : 
     482             : #if CONFIG_VP9_HIGHBITDEPTH
     483             :   vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize],
     484             :                                ac_quant >> (xd->bd - 5), &rate, &dist);
     485             : #else
     486           0 :   vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3,
     487             :                                &rate, &dist);
     488             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     489             : 
     490           0 :   *out_rate_sum += rate;
     491           0 :   *out_dist_sum += dist << 4;
     492             : }
     493             : 
     494           0 : static void model_rd_for_sb_y(VP9_COMP *cpi, BLOCK_SIZE bsize, MACROBLOCK *x,
     495             :                               MACROBLOCKD *xd, int *out_rate_sum,
     496             :                               int64_t *out_dist_sum, unsigned int *var_y,
     497             :                               unsigned int *sse_y) {
     498             :   // Note our transform coeffs are 8 times an orthogonal transform.
     499             :   // Hence quantizer step is also 8 times. To get effective quantizer
     500             :   // we need to divide by 8 before sending to modeling function.
     501             :   unsigned int sse;
     502             :   int rate;
     503             :   int64_t dist;
     504           0 :   struct macroblock_plane *const p = &x->plane[0];
     505           0 :   struct macroblockd_plane *const pd = &xd->plane[0];
     506           0 :   const int64_t dc_thr = p->quant_thred[0] >> 6;
     507           0 :   const int64_t ac_thr = p->quant_thred[1] >> 6;
     508           0 :   const uint32_t dc_quant = pd->dequant[0];
     509           0 :   const uint32_t ac_quant = pd->dequant[1];
     510           0 :   unsigned int var = cpi->fn_ptr[bsize].vf(p->src.buf, p->src.stride,
     511           0 :                                            pd->dst.buf, pd->dst.stride, &sse);
     512           0 :   int skip_dc = 0;
     513             : 
     514           0 :   *var_y = var;
     515           0 :   *sse_y = sse;
     516             : 
     517           0 :   if (cpi->common.tx_mode == TX_MODE_SELECT) {
     518           0 :     if (sse > (var << 2))
     519           0 :       xd->mi[0]->tx_size =
     520           0 :           VPXMIN(max_txsize_lookup[bsize],
     521             :                  tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
     522             :     else
     523           0 :       xd->mi[0]->tx_size = TX_8X8;
     524             : 
     525           0 :     if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&
     526           0 :         cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id))
     527           0 :       xd->mi[0]->tx_size = TX_8X8;
     528           0 :     else if (xd->mi[0]->tx_size > TX_16X16)
     529           0 :       xd->mi[0]->tx_size = TX_16X16;
     530             :   } else {
     531           0 :     xd->mi[0]->tx_size =
     532           0 :         VPXMIN(max_txsize_lookup[bsize],
     533             :                tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
     534             :   }
     535             : 
     536             :   // Evaluate if the partition block is a skippable block in Y plane.
     537             :   {
     538           0 :     const BLOCK_SIZE unit_size = txsize_to_bsize[xd->mi[0]->tx_size];
     539           0 :     const unsigned int num_blk_log2 =
     540           0 :         (b_width_log2_lookup[bsize] - b_width_log2_lookup[unit_size]) +
     541           0 :         (b_height_log2_lookup[bsize] - b_height_log2_lookup[unit_size]);
     542           0 :     const unsigned int sse_tx = sse >> num_blk_log2;
     543           0 :     const unsigned int var_tx = var >> num_blk_log2;
     544             : 
     545           0 :     x->skip_txfm[0] = SKIP_TXFM_NONE;
     546             :     // Check if all ac coefficients can be quantized to zero.
     547           0 :     if (var_tx < ac_thr || var == 0) {
     548           0 :       x->skip_txfm[0] = SKIP_TXFM_AC_ONLY;
     549             :       // Check if dc coefficient can be quantized to zero.
     550           0 :       if (sse_tx - var_tx < dc_thr || sse == var)
     551           0 :         x->skip_txfm[0] = SKIP_TXFM_AC_DC;
     552             :     } else {
     553           0 :       if (sse_tx - var_tx < dc_thr || sse == var) skip_dc = 1;
     554             :     }
     555             :   }
     556             : 
     557           0 :   if (x->skip_txfm[0] == SKIP_TXFM_AC_DC) {
     558           0 :     *out_rate_sum = 0;
     559           0 :     *out_dist_sum = sse << 4;
     560           0 :     return;
     561             :   }
     562             : 
     563           0 :   if (!skip_dc) {
     564             : #if CONFIG_VP9_HIGHBITDEPTH
     565             :     vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
     566             :                                  dc_quant >> (xd->bd - 5), &rate, &dist);
     567             : #else
     568           0 :     vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
     569             :                                  dc_quant >> 3, &rate, &dist);
     570             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     571             :   }
     572             : 
     573           0 :   if (!skip_dc) {
     574           0 :     *out_rate_sum = rate >> 1;
     575           0 :     *out_dist_sum = dist << 3;
     576             :   } else {
     577           0 :     *out_rate_sum = 0;
     578           0 :     *out_dist_sum = (sse - var) << 4;
     579             :   }
     580             : 
     581             : #if CONFIG_VP9_HIGHBITDEPTH
     582             :   vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize],
     583             :                                ac_quant >> (xd->bd - 5), &rate, &dist);
     584             : #else
     585           0 :   vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3,
     586             :                                &rate, &dist);
     587             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     588             : 
     589           0 :   *out_rate_sum += rate;
     590           0 :   *out_dist_sum += dist << 4;
     591             : }
     592             : 
     593             : #if CONFIG_VP9_HIGHBITDEPTH
     594             : static void block_yrd(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *this_rdc,
     595             :                       int *skippable, int64_t *sse, BLOCK_SIZE bsize,
     596             :                       TX_SIZE tx_size) {
     597             :   MACROBLOCKD *xd = &x->e_mbd;
     598             :   unsigned int var_y, sse_y;
     599             : 
     600             :   (void)tx_size;
     601             :   model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc->rate, &this_rdc->dist, &var_y,
     602             :                     &sse_y);
     603             :   *sse = INT_MAX;
     604             :   *skippable = 0;
     605             :   return;
     606             : }
     607             : #else
     608           0 : static void block_yrd(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *this_rdc,
     609             :                       int *skippable, int64_t *sse, BLOCK_SIZE bsize,
     610             :                       TX_SIZE tx_size) {
     611           0 :   MACROBLOCKD *xd = &x->e_mbd;
     612           0 :   const struct macroblockd_plane *pd = &xd->plane[0];
     613           0 :   struct macroblock_plane *const p = &x->plane[0];
     614           0 :   const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize];
     615           0 :   const int num_4x4_h = num_4x4_blocks_high_lookup[bsize];
     616           0 :   const int step = 1 << (tx_size << 1);
     617           0 :   const int block_step = (1 << tx_size);
     618           0 :   int block = 0, r, c;
     619           0 :   const int max_blocks_wide =
     620           0 :       num_4x4_w + (xd->mb_to_right_edge >= 0 ? 0 : xd->mb_to_right_edge >> 5);
     621           0 :   const int max_blocks_high =
     622           0 :       num_4x4_h + (xd->mb_to_bottom_edge >= 0 ? 0 : xd->mb_to_bottom_edge >> 5);
     623           0 :   int eob_cost = 0;
     624           0 :   const int bw = 4 * num_4x4_w;
     625           0 :   const int bh = 4 * num_4x4_h;
     626             : 
     627             :   (void)cpi;
     628             : 
     629             :   // The max tx_size passed in is TX_16X16.
     630           0 :   assert(tx_size != TX_32X32);
     631             : 
     632           0 :   vpx_subtract_block(bh, bw, p->src_diff, bw, p->src.buf, p->src.stride,
     633           0 :                      pd->dst.buf, pd->dst.stride);
     634           0 :   *skippable = 1;
     635             :   // Keep track of the row and column of the blocks we use so that we know
     636             :   // if we are in the unrestricted motion border.
     637           0 :   for (r = 0; r < max_blocks_high; r += block_step) {
     638           0 :     for (c = 0; c < num_4x4_w; c += block_step) {
     639           0 :       if (c < max_blocks_wide) {
     640           0 :         const scan_order *const scan_order = &vp9_default_scan_orders[tx_size];
     641           0 :         tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block);
     642           0 :         tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block);
     643           0 :         tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block);
     644           0 :         uint16_t *const eob = &p->eobs[block];
     645           0 :         const int diff_stride = bw;
     646             :         const int16_t *src_diff;
     647           0 :         src_diff = &p->src_diff[(r * diff_stride + c) << 2];
     648             : 
     649           0 :         switch (tx_size) {
     650             :           case TX_16X16:
     651           0 :             vpx_hadamard_16x16(src_diff, diff_stride, (int16_t *)coeff);
     652           0 :             vp9_quantize_fp(coeff, 256, x->skip_block, p->zbin, p->round_fp,
     653           0 :                             p->quant_fp, p->quant_shift, qcoeff, dqcoeff,
     654             :                             pd->dequant, eob, scan_order->scan,
     655             :                             scan_order->iscan);
     656           0 :             break;
     657             :           case TX_8X8:
     658           0 :             vpx_hadamard_8x8(src_diff, diff_stride, (int16_t *)coeff);
     659           0 :             vp9_quantize_fp(coeff, 64, x->skip_block, p->zbin, p->round_fp,
     660           0 :                             p->quant_fp, p->quant_shift, qcoeff, dqcoeff,
     661             :                             pd->dequant, eob, scan_order->scan,
     662             :                             scan_order->iscan);
     663           0 :             break;
     664             :           case TX_4X4:
     665           0 :             x->fwd_txm4x4(src_diff, coeff, diff_stride);
     666           0 :             vp9_quantize_fp(coeff, 16, x->skip_block, p->zbin, p->round_fp,
     667           0 :                             p->quant_fp, p->quant_shift, qcoeff, dqcoeff,
     668             :                             pd->dequant, eob, scan_order->scan,
     669             :                             scan_order->iscan);
     670           0 :             break;
     671           0 :           default: assert(0); break;
     672             :         }
     673           0 :         *skippable &= (*eob == 0);
     674           0 :         eob_cost += 1;
     675             :       }
     676           0 :       block += step;
     677             :     }
     678             :   }
     679             : 
     680           0 :   this_rdc->rate = 0;
     681           0 :   if (*sse < INT64_MAX) {
     682           0 :     *sse = (*sse << 6) >> 2;
     683           0 :     if (*skippable) {
     684           0 :       this_rdc->dist = *sse;
     685           0 :       return;
     686             :     }
     687             :   }
     688             : 
     689           0 :   block = 0;
     690           0 :   this_rdc->dist = 0;
     691           0 :   for (r = 0; r < max_blocks_high; r += block_step) {
     692           0 :     for (c = 0; c < num_4x4_w; c += block_step) {
     693           0 :       if (c < max_blocks_wide) {
     694           0 :         tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block);
     695           0 :         tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block);
     696           0 :         tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block);
     697           0 :         uint16_t *const eob = &p->eobs[block];
     698             : 
     699           0 :         if (*eob == 1)
     700           0 :           this_rdc->rate += (int)abs(qcoeff[0]);
     701           0 :         else if (*eob > 1)
     702           0 :           this_rdc->rate += vpx_satd((const int16_t *)qcoeff, step << 4);
     703             : 
     704           0 :         this_rdc->dist += vp9_block_error_fp(coeff, dqcoeff, step << 4) >> 2;
     705             :       }
     706           0 :       block += step;
     707             :     }
     708             :   }
     709             : 
     710             :   // If skippable is set, rate gets clobbered later.
     711           0 :   this_rdc->rate <<= (2 + VP9_PROB_COST_SHIFT);
     712           0 :   this_rdc->rate += (eob_cost << VP9_PROB_COST_SHIFT);
     713             : }
     714             : #endif
     715             : 
     716           0 : static void model_rd_for_sb_uv(VP9_COMP *cpi, BLOCK_SIZE plane_bsize,
     717             :                                MACROBLOCK *x, MACROBLOCKD *xd,
     718             :                                RD_COST *this_rdc, unsigned int *var_y,
     719             :                                unsigned int *sse_y, int start_plane,
     720             :                                int stop_plane) {
     721             :   // Note our transform coeffs are 8 times an orthogonal transform.
     722             :   // Hence quantizer step is also 8 times. To get effective quantizer
     723             :   // we need to divide by 8 before sending to modeling function.
     724             :   unsigned int sse;
     725             :   int rate;
     726             :   int64_t dist;
     727             :   int i;
     728             : #if CONFIG_VP9_HIGHBITDEPTH
     729             :   uint64_t tot_var = *var_y;
     730             :   uint64_t tot_sse = *sse_y;
     731             : #else
     732           0 :   uint32_t tot_var = *var_y;
     733           0 :   uint32_t tot_sse = *sse_y;
     734             : #endif
     735             : 
     736           0 :   this_rdc->rate = 0;
     737           0 :   this_rdc->dist = 0;
     738             : 
     739           0 :   for (i = start_plane; i <= stop_plane; ++i) {
     740           0 :     struct macroblock_plane *const p = &x->plane[i];
     741           0 :     struct macroblockd_plane *const pd = &xd->plane[i];
     742           0 :     const uint32_t dc_quant = pd->dequant[0];
     743           0 :     const uint32_t ac_quant = pd->dequant[1];
     744           0 :     const BLOCK_SIZE bs = plane_bsize;
     745             :     unsigned int var;
     746           0 :     if (!x->color_sensitivity[i - 1]) continue;
     747             : 
     748           0 :     var = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride, pd->dst.buf,
     749             :                              pd->dst.stride, &sse);
     750           0 :     assert(sse >= var);
     751           0 :     tot_var += var;
     752           0 :     tot_sse += sse;
     753             : 
     754             : #if CONFIG_VP9_HIGHBITDEPTH
     755             :     vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bs],
     756             :                                  dc_quant >> (xd->bd - 5), &rate, &dist);
     757             : #else
     758           0 :     vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bs],
     759             :                                  dc_quant >> 3, &rate, &dist);
     760             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     761             : 
     762           0 :     this_rdc->rate += rate >> 1;
     763           0 :     this_rdc->dist += dist << 3;
     764             : 
     765             : #if CONFIG_VP9_HIGHBITDEPTH
     766             :     vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bs],
     767             :                                  ac_quant >> (xd->bd - 5), &rate, &dist);
     768             : #else
     769           0 :     vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bs], ac_quant >> 3,
     770             :                                  &rate, &dist);
     771             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     772             : 
     773           0 :     this_rdc->rate += rate;
     774           0 :     this_rdc->dist += dist << 4;
     775             :   }
     776             : 
     777             : #if CONFIG_VP9_HIGHBITDEPTH
     778             :   *var_y = tot_var > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_var;
     779             :   *sse_y = tot_sse > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_sse;
     780             : #else
     781           0 :   *var_y = tot_var;
     782           0 :   *sse_y = tot_sse;
     783             : #endif
     784           0 : }
     785             : 
     786           0 : static int get_pred_buffer(PRED_BUFFER *p, int len) {
     787             :   int i;
     788             : 
     789           0 :   for (i = 0; i < len; i++) {
     790           0 :     if (!p[i].in_use) {
     791           0 :       p[i].in_use = 1;
     792           0 :       return i;
     793             :     }
     794             :   }
     795           0 :   return -1;
     796             : }
     797             : 
     798           0 : static void free_pred_buffer(PRED_BUFFER *p) {
     799           0 :   if (p != NULL) p->in_use = 0;
     800           0 : }
     801             : 
     802           0 : static void encode_breakout_test(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize,
     803             :                                  int mi_row, int mi_col,
     804             :                                  MV_REFERENCE_FRAME ref_frame,
     805             :                                  PREDICTION_MODE this_mode, unsigned int var_y,
     806             :                                  unsigned int sse_y,
     807             :                                  struct buf_2d yv12_mb[][MAX_MB_PLANE],
     808             :                                  int *rate, int64_t *dist) {
     809           0 :   MACROBLOCKD *xd = &x->e_mbd;
     810           0 :   MODE_INFO *const mi = xd->mi[0];
     811           0 :   const BLOCK_SIZE uv_size = get_plane_block_size(bsize, &xd->plane[1]);
     812           0 :   unsigned int var = var_y, sse = sse_y;
     813             :   // Skipping threshold for ac.
     814             :   unsigned int thresh_ac;
     815             :   // Skipping threshold for dc.
     816             :   unsigned int thresh_dc;
     817           0 :   int motion_low = 1;
     818           0 :   if (mi->mv[0].as_mv.row > 64 || mi->mv[0].as_mv.row < -64 ||
     819           0 :       mi->mv[0].as_mv.col > 64 || mi->mv[0].as_mv.col < -64)
     820           0 :     motion_low = 0;
     821           0 :   if (x->encode_breakout > 0 && motion_low == 1) {
     822             :     // Set a maximum for threshold to avoid big PSNR loss in low bit rate
     823             :     // case. Use extreme low threshold for static frames to limit
     824             :     // skipping.
     825           0 :     const unsigned int max_thresh = 36000;
     826             :     // The encode_breakout input
     827           0 :     const unsigned int min_thresh =
     828           0 :         VPXMIN(((unsigned int)x->encode_breakout << 4), max_thresh);
     829             : #if CONFIG_VP9_HIGHBITDEPTH
     830             :     const int shift = (xd->bd << 1) - 16;
     831             : #endif
     832             : 
     833             :     // Calculate threshold according to dequant value.
     834           0 :     thresh_ac = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1]) >> 3;
     835             : #if CONFIG_VP9_HIGHBITDEPTH
     836             :     if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) {
     837             :       thresh_ac = ROUND_POWER_OF_TWO(thresh_ac, shift);
     838             :     }
     839             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     840           0 :     thresh_ac = clamp(thresh_ac, min_thresh, max_thresh);
     841             : 
     842             :     // Adjust ac threshold according to partition size.
     843           0 :     thresh_ac >>=
     844           0 :         8 - (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]);
     845             : 
     846           0 :     thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6);
     847             : #if CONFIG_VP9_HIGHBITDEPTH
     848             :     if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) {
     849             :       thresh_dc = ROUND_POWER_OF_TWO(thresh_dc, shift);
     850             :     }
     851             : #endif  // CONFIG_VP9_HIGHBITDEPTH
     852             :   } else {
     853           0 :     thresh_ac = 0;
     854           0 :     thresh_dc = 0;
     855             :   }
     856             : 
     857             :   // Y skipping condition checking for ac and dc.
     858           0 :   if (var <= thresh_ac && (sse - var) <= thresh_dc) {
     859             :     unsigned int sse_u, sse_v;
     860             :     unsigned int var_u, var_v;
     861           0 :     unsigned int thresh_ac_uv = thresh_ac;
     862           0 :     unsigned int thresh_dc_uv = thresh_dc;
     863           0 :     if (x->sb_is_skin) {
     864           0 :       thresh_ac_uv = 0;
     865           0 :       thresh_dc_uv = 0;
     866             :     }
     867             : 
     868             :     // Skip UV prediction unless breakout is zero (lossless) to save
     869             :     // computation with low impact on the result
     870           0 :     if (x->encode_breakout == 0) {
     871           0 :       xd->plane[1].pre[0] = yv12_mb[ref_frame][1];
     872           0 :       xd->plane[2].pre[0] = yv12_mb[ref_frame][2];
     873           0 :       vp9_build_inter_predictors_sbuv(xd, mi_row, mi_col, bsize);
     874             :     }
     875             : 
     876           0 :     var_u = cpi->fn_ptr[uv_size].vf(x->plane[1].src.buf, x->plane[1].src.stride,
     877           0 :                                     xd->plane[1].dst.buf,
     878             :                                     xd->plane[1].dst.stride, &sse_u);
     879             : 
     880             :     // U skipping condition checking
     881           0 :     if (((var_u << 2) <= thresh_ac_uv) && (sse_u - var_u <= thresh_dc_uv)) {
     882           0 :       var_v = cpi->fn_ptr[uv_size].vf(
     883           0 :           x->plane[2].src.buf, x->plane[2].src.stride, xd->plane[2].dst.buf,
     884             :           xd->plane[2].dst.stride, &sse_v);
     885             : 
     886             :       // V skipping condition checking
     887           0 :       if (((var_v << 2) <= thresh_ac_uv) && (sse_v - var_v <= thresh_dc_uv)) {
     888           0 :         x->skip = 1;
     889             : 
     890             :         // The cost of skip bit needs to be added.
     891           0 :         *rate = cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
     892           0 :                                     [INTER_OFFSET(this_mode)];
     893             : 
     894             :         // More on this part of rate
     895             :         // rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
     896             : 
     897             :         // Scaling factor for SSE from spatial domain to frequency
     898             :         // domain is 16. Adjust distortion accordingly.
     899             :         // TODO(yunqingwang): In this function, only y-plane dist is
     900             :         // calculated.
     901           0 :         *dist = (sse << 4);  // + ((sse_u + sse_v) << 4);
     902             : 
     903             :         // *disable_skip = 1;
     904             :       }
     905             :     }
     906             :   }
     907           0 : }
     908             : 
     909             : struct estimate_block_intra_args {
     910             :   VP9_COMP *cpi;
     911             :   MACROBLOCK *x;
     912             :   PREDICTION_MODE mode;
     913             :   int skippable;
     914             :   RD_COST *rdc;
     915             : };
     916             : 
     917           0 : static void estimate_block_intra(int plane, int block, int row, int col,
     918             :                                  BLOCK_SIZE plane_bsize, TX_SIZE tx_size,
     919             :                                  void *arg) {
     920           0 :   struct estimate_block_intra_args *const args = arg;
     921           0 :   VP9_COMP *const cpi = args->cpi;
     922           0 :   MACROBLOCK *const x = args->x;
     923           0 :   MACROBLOCKD *const xd = &x->e_mbd;
     924           0 :   struct macroblock_plane *const p = &x->plane[0];
     925           0 :   struct macroblockd_plane *const pd = &xd->plane[0];
     926           0 :   const BLOCK_SIZE bsize_tx = txsize_to_bsize[tx_size];
     927           0 :   uint8_t *const src_buf_base = p->src.buf;
     928           0 :   uint8_t *const dst_buf_base = pd->dst.buf;
     929           0 :   const int src_stride = p->src.stride;
     930           0 :   const int dst_stride = pd->dst.stride;
     931             :   RD_COST this_rdc;
     932             : 
     933             :   (void)block;
     934             : 
     935           0 :   p->src.buf = &src_buf_base[4 * (row * src_stride + col)];
     936           0 :   pd->dst.buf = &dst_buf_base[4 * (row * dst_stride + col)];
     937             :   // Use source buffer as an approximation for the fully reconstructed buffer.
     938           0 :   vp9_predict_intra_block(xd, b_width_log2_lookup[plane_bsize], tx_size,
     939           0 :                           args->mode, x->skip_encode ? p->src.buf : pd->dst.buf,
     940           0 :                           x->skip_encode ? src_stride : dst_stride, pd->dst.buf,
     941             :                           dst_stride, col, row, plane);
     942             : 
     943           0 :   if (plane == 0) {
     944           0 :     int64_t this_sse = INT64_MAX;
     945             :     // TODO(jingning): This needs further refactoring.
     946           0 :     block_yrd(cpi, x, &this_rdc, &args->skippable, &this_sse, bsize_tx,
     947             :               VPXMIN(tx_size, TX_16X16));
     948             :   } else {
     949           0 :     unsigned int var = 0;
     950           0 :     unsigned int sse = 0;
     951           0 :     model_rd_for_sb_uv(cpi, plane_bsize, x, xd, &this_rdc, &var, &sse, plane,
     952             :                        plane);
     953             :   }
     954             : 
     955           0 :   p->src.buf = src_buf_base;
     956           0 :   pd->dst.buf = dst_buf_base;
     957           0 :   args->rdc->rate += this_rdc.rate;
     958           0 :   args->rdc->dist += this_rdc.dist;
     959           0 : }
     960             : 
     961             : static const THR_MODES mode_idx[MAX_REF_FRAMES - 1][4] = {
     962             :   { THR_DC, THR_V_PRED, THR_H_PRED, THR_TM },
     963             :   { THR_NEARESTMV, THR_NEARMV, THR_ZEROMV, THR_NEWMV },
     964             :   { THR_NEARESTG, THR_NEARG, THR_ZEROG, THR_NEWG },
     965             : };
     966             : 
     967             : static const PREDICTION_MODE intra_mode_list[] = { DC_PRED, V_PRED, H_PRED,
     968             :                                                    TM_PRED };
     969             : 
     970           0 : static int mode_offset(const PREDICTION_MODE mode) {
     971           0 :   if (mode >= NEARESTMV) {
     972           0 :     return INTER_OFFSET(mode);
     973             :   } else {
     974           0 :     switch (mode) {
     975           0 :       case DC_PRED: return 0;
     976           0 :       case V_PRED: return 1;
     977           0 :       case H_PRED: return 2;
     978           0 :       case TM_PRED: return 3;
     979           0 :       default: return -1;
     980             :     }
     981             :   }
     982             : }
     983             : 
     984           0 : static INLINE void update_thresh_freq_fact(
     985             :     VP9_COMP *cpi, TileDataEnc *tile_data, int source_variance,
     986             :     BLOCK_SIZE bsize, MV_REFERENCE_FRAME ref_frame, THR_MODES best_mode_idx,
     987             :     PREDICTION_MODE mode) {
     988           0 :   THR_MODES thr_mode_idx = mode_idx[ref_frame][mode_offset(mode)];
     989           0 :   int *freq_fact = &tile_data->thresh_freq_fact[bsize][thr_mode_idx];
     990           0 :   if (thr_mode_idx == best_mode_idx)
     991           0 :     *freq_fact -= (*freq_fact >> 4);
     992           0 :   else if (cpi->sf.limit_newmv_early_exit && mode == NEWMV &&
     993           0 :            ref_frame == LAST_FRAME && source_variance < 5) {
     994           0 :     *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, 32);
     995             :   } else {
     996           0 :     *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC,
     997             :                         cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT);
     998             :   }
     999           0 : }
    1000             : 
    1001           0 : void vp9_pick_intra_mode(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *rd_cost,
    1002             :                          BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) {
    1003           0 :   MACROBLOCKD *const xd = &x->e_mbd;
    1004           0 :   MODE_INFO *const mi = xd->mi[0];
    1005             :   RD_COST this_rdc, best_rdc;
    1006             :   PREDICTION_MODE this_mode;
    1007           0 :   struct estimate_block_intra_args args = { cpi, x, DC_PRED, 1, 0 };
    1008           0 :   const TX_SIZE intra_tx_size =
    1009           0 :       VPXMIN(max_txsize_lookup[bsize],
    1010             :              tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
    1011           0 :   MODE_INFO *const mic = xd->mi[0];
    1012             :   int *bmode_costs;
    1013           0 :   const MODE_INFO *above_mi = xd->above_mi;
    1014           0 :   const MODE_INFO *left_mi = xd->left_mi;
    1015           0 :   const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0);
    1016           0 :   const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0);
    1017           0 :   bmode_costs = cpi->y_mode_costs[A][L];
    1018             : 
    1019             :   (void)ctx;
    1020           0 :   vp9_rd_cost_reset(&best_rdc);
    1021           0 :   vp9_rd_cost_reset(&this_rdc);
    1022             : 
    1023           0 :   mi->ref_frame[0] = INTRA_FRAME;
    1024             :   // Initialize interp_filter here so we do not have to check for inter block
    1025             :   // modes in get_pred_context_switchable_interp()
    1026           0 :   mi->interp_filter = SWITCHABLE_FILTERS;
    1027             : 
    1028           0 :   mi->mv[0].as_int = INVALID_MV;
    1029           0 :   mi->uv_mode = DC_PRED;
    1030           0 :   memset(x->skip_txfm, 0, sizeof(x->skip_txfm));
    1031             : 
    1032             :   // Change the limit of this loop to add other intra prediction
    1033             :   // mode tests.
    1034           0 :   for (this_mode = DC_PRED; this_mode <= H_PRED; ++this_mode) {
    1035           0 :     this_rdc.dist = this_rdc.rate = 0;
    1036           0 :     args.mode = this_mode;
    1037           0 :     args.skippable = 1;
    1038           0 :     args.rdc = &this_rdc;
    1039           0 :     mi->tx_size = intra_tx_size;
    1040           0 :     vp9_foreach_transformed_block_in_plane(xd, bsize, 0, estimate_block_intra,
    1041             :                                            &args);
    1042           0 :     if (args.skippable) {
    1043           0 :       x->skip_txfm[0] = SKIP_TXFM_AC_DC;
    1044           0 :       this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 1);
    1045             :     } else {
    1046           0 :       x->skip_txfm[0] = SKIP_TXFM_NONE;
    1047           0 :       this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 0);
    1048             :     }
    1049           0 :     this_rdc.rate += bmode_costs[this_mode];
    1050           0 :     this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
    1051             : 
    1052           0 :     if (this_rdc.rdcost < best_rdc.rdcost) {
    1053           0 :       best_rdc = this_rdc;
    1054           0 :       mi->mode = this_mode;
    1055             :     }
    1056             :   }
    1057             : 
    1058           0 :   *rd_cost = best_rdc;
    1059           0 : }
    1060             : 
    1061           0 : static void init_ref_frame_cost(VP9_COMMON *const cm, MACROBLOCKD *const xd,
    1062             :                                 int ref_frame_cost[MAX_REF_FRAMES]) {
    1063           0 :   vpx_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
    1064           0 :   vpx_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
    1065           0 :   vpx_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
    1066             : 
    1067           0 :   ref_frame_cost[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0);
    1068           0 :   ref_frame_cost[LAST_FRAME] = ref_frame_cost[GOLDEN_FRAME] =
    1069           0 :       ref_frame_cost[ALTREF_FRAME] = vp9_cost_bit(intra_inter_p, 1);
    1070             : 
    1071           0 :   ref_frame_cost[LAST_FRAME] += vp9_cost_bit(ref_single_p1, 0);
    1072           0 :   ref_frame_cost[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p1, 1);
    1073           0 :   ref_frame_cost[ALTREF_FRAME] += vp9_cost_bit(ref_single_p1, 1);
    1074           0 :   ref_frame_cost[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p2, 0);
    1075           0 :   ref_frame_cost[ALTREF_FRAME] += vp9_cost_bit(ref_single_p2, 1);
    1076           0 : }
    1077             : 
    1078             : typedef struct {
    1079             :   MV_REFERENCE_FRAME ref_frame;
    1080             :   PREDICTION_MODE pred_mode;
    1081             : } REF_MODE;
    1082             : 
    1083             : #define RT_INTER_MODES 12
    1084             : static const REF_MODE ref_mode_set[RT_INTER_MODES] = {
    1085             :   { LAST_FRAME, ZEROMV },   { LAST_FRAME, NEARESTMV },
    1086             :   { GOLDEN_FRAME, ZEROMV }, { LAST_FRAME, NEARMV },
    1087             :   { LAST_FRAME, NEWMV },    { GOLDEN_FRAME, NEARESTMV },
    1088             :   { GOLDEN_FRAME, NEARMV }, { GOLDEN_FRAME, NEWMV },
    1089             :   { ALTREF_FRAME, ZEROMV }, { ALTREF_FRAME, NEARESTMV },
    1090             :   { ALTREF_FRAME, NEARMV }, { ALTREF_FRAME, NEWMV }
    1091             : };
    1092             : static const REF_MODE ref_mode_set_svc[RT_INTER_MODES] = {
    1093             :   { LAST_FRAME, ZEROMV },      { GOLDEN_FRAME, ZEROMV },
    1094             :   { LAST_FRAME, NEARESTMV },   { LAST_FRAME, NEARMV },
    1095             :   { GOLDEN_FRAME, NEARESTMV }, { GOLDEN_FRAME, NEARMV },
    1096             :   { LAST_FRAME, NEWMV },       { GOLDEN_FRAME, NEWMV }
    1097             : };
    1098             : 
    1099           0 : static int set_intra_cost_penalty(const VP9_COMP *const cpi, BLOCK_SIZE bsize) {
    1100           0 :   const VP9_COMMON *const cm = &cpi->common;
    1101             :   // Reduce the intra cost penalty for small blocks (<=16x16).
    1102           0 :   int reduction_fac =
    1103           0 :       (bsize <= BLOCK_16X16) ? ((bsize <= BLOCK_8X8) ? 4 : 2) : 0;
    1104           0 :   if (cpi->noise_estimate.enabled && cpi->noise_estimate.level == kHigh)
    1105             :     // Don't reduce intra cost penalty if estimated noise level is high.
    1106           0 :     reduction_fac = 0;
    1107           0 :   return vp9_get_intra_cost_penalty(cm->base_qindex, cm->y_dc_delta_q,
    1108           0 :                                     cm->bit_depth) >>
    1109             :          reduction_fac;
    1110             : }
    1111             : 
    1112           0 : static INLINE void find_predictors(
    1113             :     VP9_COMP *cpi, MACROBLOCK *x, MV_REFERENCE_FRAME ref_frame,
    1114             :     int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],
    1115             :     int const_motion[MAX_REF_FRAMES], int *ref_frame_skip_mask,
    1116             :     const int flag_list[4], TileDataEnc *tile_data, int mi_row, int mi_col,
    1117             :     struct buf_2d yv12_mb[4][MAX_MB_PLANE], BLOCK_SIZE bsize,
    1118             :     int force_skip_low_temp_var) {
    1119           0 :   VP9_COMMON *const cm = &cpi->common;
    1120           0 :   MACROBLOCKD *const xd = &x->e_mbd;
    1121           0 :   const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame);
    1122           0 :   TileInfo *const tile_info = &tile_data->tile_info;
    1123             :   // TODO(jingning) placeholder for inter-frame non-RD mode decision.
    1124           0 :   x->pred_mv_sad[ref_frame] = INT_MAX;
    1125           0 :   frame_mv[NEWMV][ref_frame].as_int = INVALID_MV;
    1126           0 :   frame_mv[ZEROMV][ref_frame].as_int = 0;
    1127             :   // this needs various further optimizations. to be continued..
    1128           0 :   if ((cpi->ref_frame_flags & flag_list[ref_frame]) && (yv12 != NULL)) {
    1129           0 :     int_mv *const candidates = x->mbmi_ext->ref_mvs[ref_frame];
    1130           0 :     const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf;
    1131           0 :     vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf);
    1132           0 :     if (cm->use_prev_frame_mvs) {
    1133           0 :       vp9_find_mv_refs(cm, xd, xd->mi[0], ref_frame, candidates, mi_row, mi_col,
    1134           0 :                        x->mbmi_ext->mode_context);
    1135             :     } else {
    1136           0 :       const_motion[ref_frame] =
    1137           0 :           mv_refs_rt(cpi, cm, x, xd, tile_info, xd->mi[0], ref_frame,
    1138           0 :                      candidates, &frame_mv[NEWMV][ref_frame], mi_row, mi_col,
    1139           0 :                      (int)(cpi->svc.use_base_mv && cpi->svc.spatial_layer_id));
    1140             :     }
    1141           0 :     vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates,
    1142           0 :                           &frame_mv[NEARESTMV][ref_frame],
    1143           0 :                           &frame_mv[NEARMV][ref_frame]);
    1144             :     // Early exit for golden frame if force_skip_low_temp_var is set.
    1145           0 :     if (!vp9_is_scaled(sf) && bsize >= BLOCK_8X8 &&
    1146           0 :         !(force_skip_low_temp_var && ref_frame == GOLDEN_FRAME)) {
    1147           0 :       vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride, ref_frame,
    1148             :                   bsize);
    1149             :     }
    1150             :   } else {
    1151           0 :     *ref_frame_skip_mask |= (1 << ref_frame);
    1152             :   }
    1153           0 : }
    1154             : 
    1155           0 : static void vp9_NEWMV_diff_bias(const NOISE_ESTIMATE *ne, MACROBLOCKD *xd,
    1156             :                                 PREDICTION_MODE this_mode, RD_COST *this_rdc,
    1157             :                                 BLOCK_SIZE bsize, int mv_row, int mv_col,
    1158             :                                 int is_last_frame) {
    1159             :   // Bias against MVs associated with NEWMV mode that are very different from
    1160             :   // top/left neighbors.
    1161           0 :   if (this_mode == NEWMV) {
    1162             :     int al_mv_average_row;
    1163             :     int al_mv_average_col;
    1164             :     int left_row, left_col;
    1165             :     int row_diff, col_diff;
    1166           0 :     int above_mv_valid = 0;
    1167           0 :     int left_mv_valid = 0;
    1168           0 :     int above_row = 0;
    1169           0 :     int above_col = 0;
    1170             : 
    1171           0 :     if (xd->above_mi) {
    1172           0 :       above_mv_valid = xd->above_mi->mv[0].as_int != INVALID_MV;
    1173           0 :       above_row = xd->above_mi->mv[0].as_mv.row;
    1174           0 :       above_col = xd->above_mi->mv[0].as_mv.col;
    1175             :     }
    1176           0 :     if (xd->left_mi) {
    1177           0 :       left_mv_valid = xd->left_mi->mv[0].as_int != INVALID_MV;
    1178           0 :       left_row = xd->left_mi->mv[0].as_mv.row;
    1179           0 :       left_col = xd->left_mi->mv[0].as_mv.col;
    1180             :     }
    1181           0 :     if (above_mv_valid && left_mv_valid) {
    1182           0 :       al_mv_average_row = (above_row + left_row + 1) >> 1;
    1183           0 :       al_mv_average_col = (above_col + left_col + 1) >> 1;
    1184           0 :     } else if (above_mv_valid) {
    1185           0 :       al_mv_average_row = above_row;
    1186           0 :       al_mv_average_col = above_col;
    1187           0 :     } else if (left_mv_valid) {
    1188           0 :       al_mv_average_row = left_row;
    1189           0 :       al_mv_average_col = left_col;
    1190             :     } else {
    1191           0 :       al_mv_average_row = al_mv_average_col = 0;
    1192             :     }
    1193           0 :     row_diff = (al_mv_average_row - mv_row);
    1194           0 :     col_diff = (al_mv_average_col - mv_col);
    1195           0 :     if (row_diff > 48 || row_diff < -48 || col_diff > 48 || col_diff < -48) {
    1196           0 :       if (bsize > BLOCK_32X32)
    1197           0 :         this_rdc->rdcost = this_rdc->rdcost << 1;
    1198             :       else
    1199           0 :         this_rdc->rdcost = 3 * this_rdc->rdcost >> 1;
    1200             :     }
    1201             :   }
    1202             :   // If noise estimation is enabled, and estimated level is above threshold,
    1203             :   // add a bias to LAST reference with small motion, for large blocks.
    1204           0 :   if (ne->enabled && ne->level >= kMedium && bsize >= BLOCK_32X32 &&
    1205           0 :       is_last_frame && mv_row < 8 && mv_row > -8 && mv_col < 8 && mv_col > -8) {
    1206           0 :     this_rdc->rdcost = 7 * this_rdc->rdcost >> 3;
    1207             :   }
    1208           0 : }
    1209             : 
    1210             : #if CONFIG_VP9_TEMPORAL_DENOISING
    1211             : static void vp9_pickmode_ctx_den_update(
    1212             :     VP9_PICKMODE_CTX_DEN *ctx_den, int64_t zero_last_cost_orig,
    1213             :     int ref_frame_cost[MAX_REF_FRAMES],
    1214             :     int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES], int reuse_inter_pred,
    1215             :     TX_SIZE best_tx_size, PREDICTION_MODE best_mode,
    1216             :     MV_REFERENCE_FRAME best_ref_frame, INTERP_FILTER best_pred_filter,
    1217             :     uint8_t best_mode_skip_txfm) {
    1218             :   ctx_den->zero_last_cost_orig = zero_last_cost_orig;
    1219             :   ctx_den->ref_frame_cost = ref_frame_cost;
    1220             :   ctx_den->frame_mv = frame_mv;
    1221             :   ctx_den->reuse_inter_pred = reuse_inter_pred;
    1222             :   ctx_den->best_tx_size = best_tx_size;
    1223             :   ctx_den->best_mode = best_mode;
    1224             :   ctx_den->best_ref_frame = best_ref_frame;
    1225             :   ctx_den->best_pred_filter = best_pred_filter;
    1226             :   ctx_den->best_mode_skip_txfm = best_mode_skip_txfm;
    1227             : }
    1228             : 
    1229             : static void recheck_zeromv_after_denoising(
    1230             :     VP9_COMP *cpi, MODE_INFO *const mi, MACROBLOCK *x, MACROBLOCKD *const xd,
    1231             :     VP9_DENOISER_DECISION decision, VP9_PICKMODE_CTX_DEN *ctx_den,
    1232             :     struct buf_2d yv12_mb[4][MAX_MB_PLANE], RD_COST *best_rdc, BLOCK_SIZE bsize,
    1233             :     int mi_row, int mi_col) {
    1234             :   // If INTRA or GOLDEN reference was selected, re-evaluate ZEROMV on
    1235             :   // denoised result. Only do this under noise conditions, and if rdcost of
    1236             :   // ZEROMV onoriginal source is not significantly higher than rdcost of best
    1237             :   // mode.
    1238             :   if (cpi->noise_estimate.enabled && cpi->noise_estimate.level > kLow &&
    1239             :       ctx_den->zero_last_cost_orig < (best_rdc->rdcost << 3) &&
    1240             :       ((ctx_den->best_ref_frame == INTRA_FRAME && decision >= FILTER_BLOCK) ||
    1241             :        (ctx_den->best_ref_frame == GOLDEN_FRAME &&
    1242             :         decision == FILTER_ZEROMV_BLOCK))) {
    1243             :     // Check if we should pick ZEROMV on denoised signal.
    1244             :     int rate = 0;
    1245             :     int64_t dist = 0;
    1246             :     uint32_t var_y = UINT_MAX;
    1247             :     uint32_t sse_y = UINT_MAX;
    1248             :     RD_COST this_rdc;
    1249             :     mi->mode = ZEROMV;
    1250             :     mi->ref_frame[0] = LAST_FRAME;
    1251             :     mi->ref_frame[1] = NONE;
    1252             :     mi->mv[0].as_int = 0;
    1253             :     mi->interp_filter = EIGHTTAP;
    1254             :     xd->plane[0].pre[0] = yv12_mb[LAST_FRAME][0];
    1255             :     vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
    1256             :     model_rd_for_sb_y(cpi, bsize, x, xd, &rate, &dist, &var_y, &sse_y);
    1257             :     this_rdc.rate = rate + ctx_den->ref_frame_cost[LAST_FRAME] +
    1258             :                     cpi->inter_mode_cost[x->mbmi_ext->mode_context[LAST_FRAME]]
    1259             :                                         [INTER_OFFSET(ZEROMV)];
    1260             :     this_rdc.dist = dist;
    1261             :     this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, rate, dist);
    1262             :     // Don't switch to ZEROMV if the rdcost for ZEROMV on denoised source
    1263             :     // is higher than best_ref mode (on original source).
    1264             :     if (this_rdc.rdcost > best_rdc->rdcost) {
    1265             :       this_rdc = *best_rdc;
    1266             :       mi->mode = ctx_den->best_mode;
    1267             :       mi->ref_frame[0] = ctx_den->best_ref_frame;
    1268             :       mi->interp_filter = ctx_den->best_pred_filter;
    1269             :       if (ctx_den->best_ref_frame == INTRA_FRAME) {
    1270             :         mi->mv[0].as_int = INVALID_MV;
    1271             :         mi->interp_filter = SWITCHABLE_FILTERS;
    1272             :       } else if (ctx_den->best_ref_frame == GOLDEN_FRAME) {
    1273             :         mi->mv[0].as_int =
    1274             :             ctx_den->frame_mv[ctx_den->best_mode][ctx_den->best_ref_frame]
    1275             :                 .as_int;
    1276             :         if (ctx_den->reuse_inter_pred) {
    1277             :           xd->plane[0].pre[0] = yv12_mb[GOLDEN_FRAME][0];
    1278             :           vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
    1279             :         }
    1280             :       }
    1281             :       mi->tx_size = ctx_den->best_tx_size;
    1282             :       x->skip_txfm[0] = ctx_den->best_mode_skip_txfm;
    1283             :     } else {
    1284             :       ctx_den->best_ref_frame = LAST_FRAME;
    1285             :       *best_rdc = this_rdc;
    1286             :     }
    1287             :   }
    1288             : }
    1289             : #endif  // CONFIG_VP9_TEMPORAL_DENOISING
    1290             : 
    1291           0 : static INLINE int get_force_skip_low_temp_var(uint8_t *variance_low, int mi_row,
    1292             :                                               int mi_col, BLOCK_SIZE bsize) {
    1293           0 :   const int i = (mi_row & 0x7) >> 1;
    1294           0 :   const int j = (mi_col & 0x7) >> 1;
    1295           0 :   int force_skip_low_temp_var = 0;
    1296             :   // Set force_skip_low_temp_var based on the block size and block offset.
    1297           0 :   if (bsize == BLOCK_64X64) {
    1298           0 :     force_skip_low_temp_var = variance_low[0];
    1299           0 :   } else if (bsize == BLOCK_64X32) {
    1300           0 :     if (!(mi_col & 0x7) && !(mi_row & 0x7)) {
    1301           0 :       force_skip_low_temp_var = variance_low[1];
    1302           0 :     } else if (!(mi_col & 0x7) && (mi_row & 0x7)) {
    1303           0 :       force_skip_low_temp_var = variance_low[2];
    1304             :     }
    1305           0 :   } else if (bsize == BLOCK_32X64) {
    1306           0 :     if (!(mi_col & 0x7) && !(mi_row & 0x7)) {
    1307           0 :       force_skip_low_temp_var = variance_low[3];
    1308           0 :     } else if ((mi_col & 0x7) && !(mi_row & 0x7)) {
    1309           0 :       force_skip_low_temp_var = variance_low[4];
    1310             :     }
    1311           0 :   } else if (bsize == BLOCK_32X32) {
    1312           0 :     if (!(mi_col & 0x7) && !(mi_row & 0x7)) {
    1313           0 :       force_skip_low_temp_var = variance_low[5];
    1314           0 :     } else if ((mi_col & 0x7) && !(mi_row & 0x7)) {
    1315           0 :       force_skip_low_temp_var = variance_low[6];
    1316           0 :     } else if (!(mi_col & 0x7) && (mi_row & 0x7)) {
    1317           0 :       force_skip_low_temp_var = variance_low[7];
    1318           0 :     } else if ((mi_col & 0x7) && (mi_row & 0x7)) {
    1319           0 :       force_skip_low_temp_var = variance_low[8];
    1320             :     }
    1321           0 :   } else if (bsize == BLOCK_16X16) {
    1322           0 :     force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]];
    1323           0 :   } else if (bsize == BLOCK_32X16) {
    1324             :     // The col shift index for the second 16x16 block.
    1325           0 :     const int j2 = ((mi_col + 2) & 0x7) >> 1;
    1326             :     // Only if each 16x16 block inside has low temporal variance.
    1327           0 :     force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]] &&
    1328           0 :                               variance_low[pos_shift_16x16[i][j2]];
    1329           0 :   } else if (bsize == BLOCK_16X32) {
    1330             :     // The row shift index for the second 16x16 block.
    1331           0 :     const int i2 = ((mi_row + 2) & 0x7) >> 1;
    1332           0 :     force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]] &&
    1333           0 :                               variance_low[pos_shift_16x16[i2][j]];
    1334             :   }
    1335           0 :   return force_skip_low_temp_var;
    1336             : }
    1337             : 
    1338           0 : void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data,
    1339             :                          int mi_row, int mi_col, RD_COST *rd_cost,
    1340             :                          BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) {
    1341           0 :   VP9_COMMON *const cm = &cpi->common;
    1342           0 :   SPEED_FEATURES *const sf = &cpi->sf;
    1343           0 :   const SVC *const svc = &cpi->svc;
    1344           0 :   MACROBLOCKD *const xd = &x->e_mbd;
    1345           0 :   MODE_INFO *const mi = xd->mi[0];
    1346           0 :   struct macroblockd_plane *const pd = &xd->plane[0];
    1347           0 :   PREDICTION_MODE best_mode = ZEROMV;
    1348           0 :   MV_REFERENCE_FRAME ref_frame, best_ref_frame = LAST_FRAME;
    1349             :   MV_REFERENCE_FRAME usable_ref_frame;
    1350           0 :   TX_SIZE best_tx_size = TX_SIZES;
    1351           0 :   INTERP_FILTER best_pred_filter = EIGHTTAP;
    1352             :   int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
    1353             :   struct buf_2d yv12_mb[4][MAX_MB_PLANE];
    1354             :   static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
    1355             :                                     VP9_ALT_FLAG };
    1356             :   RD_COST this_rdc, best_rdc;
    1357           0 :   uint8_t skip_txfm = SKIP_TXFM_NONE, best_mode_skip_txfm = SKIP_TXFM_NONE;
    1358             :   // var_y and sse_y are saved to be used in skipping checking
    1359           0 :   unsigned int var_y = UINT_MAX;
    1360           0 :   unsigned int sse_y = UINT_MAX;
    1361           0 :   const int intra_cost_penalty = set_intra_cost_penalty(cpi, bsize);
    1362           0 :   int64_t inter_mode_thresh =
    1363           0 :       RDCOST(x->rdmult, x->rddiv, intra_cost_penalty, 0);
    1364           0 :   const int *const rd_threshes = cpi->rd.threshes[mi->segment_id][bsize];
    1365           0 :   const int *const rd_thresh_freq_fact = tile_data->thresh_freq_fact[bsize];
    1366             :   INTERP_FILTER filter_ref;
    1367           0 :   const int bsl = mi_width_log2_lookup[bsize];
    1368           0 :   const int pred_filter_search =
    1369           0 :       cm->interp_filter == SWITCHABLE
    1370           0 :           ? (((mi_row + mi_col) >> bsl) +
    1371           0 :              get_chessboard_index(cm->current_video_frame)) &
    1372             :                 0x1
    1373           0 :           : 0;
    1374           0 :   int const_motion[MAX_REF_FRAMES] = { 0 };
    1375           0 :   const int bh = num_4x4_blocks_high_lookup[bsize] << 2;
    1376           0 :   const int bw = num_4x4_blocks_wide_lookup[bsize] << 2;
    1377             :   // For speed 6, the result of interp filter is reused later in actual encoding
    1378             :   // process.
    1379             :   // tmp[3] points to dst buffer, and the other 3 point to allocated buffers.
    1380             :   PRED_BUFFER tmp[4];
    1381             :   DECLARE_ALIGNED(16, uint8_t, pred_buf[3 * 64 * 64]);
    1382             : #if CONFIG_VP9_HIGHBITDEPTH
    1383             :   DECLARE_ALIGNED(16, uint16_t, pred_buf_16[3 * 64 * 64]);
    1384             : #endif
    1385           0 :   struct buf_2d orig_dst = pd->dst;
    1386           0 :   PRED_BUFFER *best_pred = NULL;
    1387           0 :   PRED_BUFFER *this_mode_pred = NULL;
    1388           0 :   const int pixels_in_block = bh * bw;
    1389           0 :   int reuse_inter_pred = cpi->sf.reuse_inter_pred_sby && ctx->pred_pixel_ready;
    1390           0 :   int ref_frame_skip_mask = 0;
    1391             :   int idx;
    1392           0 :   int best_pred_sad = INT_MAX;
    1393           0 :   int best_early_term = 0;
    1394             :   int ref_frame_cost[MAX_REF_FRAMES];
    1395           0 :   int svc_force_zero_mode[3] = { 0 };
    1396           0 :   int perform_intra_pred = 1;
    1397           0 :   int use_golden_nonzeromv = 1;
    1398           0 :   int force_skip_low_temp_var = 0;
    1399           0 :   int skip_ref_find_pred[4] = { 0 };
    1400             : #if CONFIG_VP9_TEMPORAL_DENOISING
    1401             :   VP9_PICKMODE_CTX_DEN ctx_den;
    1402             :   int64_t zero_last_cost_orig = INT64_MAX;
    1403             : #endif
    1404             : 
    1405           0 :   init_ref_frame_cost(cm, xd, ref_frame_cost);
    1406             : 
    1407           0 :   if (reuse_inter_pred) {
    1408             :     int i;
    1409           0 :     for (i = 0; i < 3; i++) {
    1410             : #if CONFIG_VP9_HIGHBITDEPTH
    1411             :       if (cm->use_highbitdepth)
    1412             :         tmp[i].data = CONVERT_TO_BYTEPTR(&pred_buf_16[pixels_in_block * i]);
    1413             :       else
    1414             :         tmp[i].data = &pred_buf[pixels_in_block * i];
    1415             : #else
    1416           0 :       tmp[i].data = &pred_buf[pixels_in_block * i];
    1417             : #endif  // CONFIG_VP9_HIGHBITDEPTH
    1418           0 :       tmp[i].stride = bw;
    1419           0 :       tmp[i].in_use = 0;
    1420             :     }
    1421           0 :     tmp[3].data = pd->dst.buf;
    1422           0 :     tmp[3].stride = pd->dst.stride;
    1423           0 :     tmp[3].in_use = 0;
    1424             :   }
    1425             : 
    1426           0 :   x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
    1427           0 :   x->skip = 0;
    1428             : 
    1429             :   // Instead of using vp9_get_pred_context_switchable_interp(xd) to assign
    1430             :   // filter_ref, we use a less strict condition on assigning filter_ref.
    1431             :   // This is to reduce the probabily of entering the flow of not assigning
    1432             :   // filter_ref and then skip filter search.
    1433           0 :   if (xd->above_mi && is_inter_block(xd->above_mi))
    1434           0 :     filter_ref = xd->above_mi->interp_filter;
    1435           0 :   else if (xd->left_mi && is_inter_block(xd->left_mi))
    1436           0 :     filter_ref = xd->left_mi->interp_filter;
    1437             :   else
    1438           0 :     filter_ref = cm->interp_filter;
    1439             : 
    1440             :   // initialize mode decisions
    1441           0 :   vp9_rd_cost_reset(&best_rdc);
    1442           0 :   vp9_rd_cost_reset(rd_cost);
    1443           0 :   mi->sb_type = bsize;
    1444           0 :   mi->ref_frame[0] = NONE;
    1445           0 :   mi->ref_frame[1] = NONE;
    1446             : 
    1447           0 :   mi->tx_size =
    1448           0 :       VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cm->tx_mode]);
    1449             : 
    1450           0 :   if (sf->short_circuit_flat_blocks || sf->limit_newmv_early_exit) {
    1451             : #if CONFIG_VP9_HIGHBITDEPTH
    1452             :     if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH)
    1453             :       x->source_variance = vp9_high_get_sby_perpixel_variance(
    1454             :           cpi, &x->plane[0].src, bsize, xd->bd);
    1455             :     else
    1456             : #endif  // CONFIG_VP9_HIGHBITDEPTH
    1457           0 :       x->source_variance =
    1458           0 :           vp9_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize);
    1459             :   }
    1460             : 
    1461             : #if CONFIG_VP9_TEMPORAL_DENOISING
    1462             :   if (cpi->oxcf.noise_sensitivity > 0 &&
    1463             :       cpi->denoiser.denoising_level > kDenLowLow) {
    1464             :     vp9_denoiser_reset_frame_stats(ctx);
    1465             :   }
    1466             : #endif
    1467             : 
    1468           0 :   if (cpi->rc.frames_since_golden == 0 && !cpi->use_svc) {
    1469           0 :     usable_ref_frame = LAST_FRAME;
    1470             :   } else {
    1471           0 :     usable_ref_frame = GOLDEN_FRAME;
    1472             :   }
    1473             : 
    1474           0 :   if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) {
    1475           0 :     if (cpi->rc.alt_ref_gf_group || cpi->rc.is_src_frame_alt_ref)
    1476           0 :       usable_ref_frame = ALTREF_FRAME;
    1477             : 
    1478           0 :     if (cpi->rc.is_src_frame_alt_ref) {
    1479           0 :       skip_ref_find_pred[LAST_FRAME] = 1;
    1480           0 :       skip_ref_find_pred[GOLDEN_FRAME] = 1;
    1481             :     }
    1482             :   }
    1483             : 
    1484             :   // For svc mode, on spatial_layer_id > 0: if the reference has different scale
    1485             :   // constrain the inter mode to only test zero motion.
    1486           0 :   if (cpi->use_svc && svc->force_zero_mode_spatial_ref &&
    1487           0 :       cpi->svc.spatial_layer_id > 0) {
    1488           0 :     if (cpi->ref_frame_flags & flag_list[LAST_FRAME]) {
    1489           0 :       struct scale_factors *const sf = &cm->frame_refs[LAST_FRAME - 1].sf;
    1490           0 :       if (vp9_is_scaled(sf)) svc_force_zero_mode[LAST_FRAME - 1] = 1;
    1491             :     }
    1492           0 :     if (cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) {
    1493           0 :       struct scale_factors *const sf = &cm->frame_refs[GOLDEN_FRAME - 1].sf;
    1494           0 :       if (vp9_is_scaled(sf)) svc_force_zero_mode[GOLDEN_FRAME - 1] = 1;
    1495             :     }
    1496             :   }
    1497             : 
    1498           0 :   if (cpi->sf.short_circuit_low_temp_var) {
    1499           0 :     force_skip_low_temp_var =
    1500           0 :         get_force_skip_low_temp_var(&x->variance_low[0], mi_row, mi_col, bsize);
    1501             :     // If force_skip_low_temp_var is set, and for short circuit mode = 1 and 3,
    1502             :     // skip golden reference.
    1503           0 :     if ((cpi->sf.short_circuit_low_temp_var == 1 ||
    1504           0 :          cpi->sf.short_circuit_low_temp_var == 3) &&
    1505             :         force_skip_low_temp_var) {
    1506           0 :       usable_ref_frame = LAST_FRAME;
    1507             :     }
    1508             :   }
    1509             : 
    1510           0 :   if (!((cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) &&
    1511           0 :         !svc_force_zero_mode[GOLDEN_FRAME - 1] && !force_skip_low_temp_var))
    1512           0 :     use_golden_nonzeromv = 0;
    1513             : 
    1514           0 :   for (ref_frame = LAST_FRAME; ref_frame <= usable_ref_frame; ++ref_frame) {
    1515           0 :     if (!skip_ref_find_pred[ref_frame]) {
    1516           0 :       find_predictors(cpi, x, ref_frame, frame_mv, const_motion,
    1517             :                       &ref_frame_skip_mask, flag_list, tile_data, mi_row,
    1518             :                       mi_col, yv12_mb, bsize, force_skip_low_temp_var);
    1519             :     }
    1520             :   }
    1521             : 
    1522           0 :   for (idx = 0; idx < RT_INTER_MODES; ++idx) {
    1523           0 :     int rate_mv = 0;
    1524             :     int mode_rd_thresh;
    1525             :     int mode_index;
    1526             :     int i;
    1527             :     int64_t this_sse;
    1528             :     int is_skippable;
    1529           0 :     int this_early_term = 0;
    1530           0 :     PREDICTION_MODE this_mode = ref_mode_set[idx].pred_mode;
    1531             : 
    1532           0 :     ref_frame = ref_mode_set[idx].ref_frame;
    1533             : 
    1534           0 :     if (cpi->use_svc) {
    1535           0 :       this_mode = ref_mode_set_svc[idx].pred_mode;
    1536           0 :       ref_frame = ref_mode_set_svc[idx].ref_frame;
    1537             :     }
    1538           0 :     if (ref_frame > usable_ref_frame) continue;
    1539           0 :     if (skip_ref_find_pred[ref_frame]) continue;
    1540             : 
    1541           0 :     if (sf->short_circuit_flat_blocks && x->source_variance == 0 &&
    1542             :         this_mode != NEARESTMV) {
    1543           0 :       continue;
    1544             :     }
    1545             : 
    1546           0 :     if (!(cpi->sf.inter_mode_mask[bsize] & (1 << this_mode))) continue;
    1547             : 
    1548           0 :     if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) {
    1549           0 :       if (cpi->rc.is_src_frame_alt_ref &&
    1550           0 :           (ref_frame != ALTREF_FRAME ||
    1551           0 :            frame_mv[this_mode][ref_frame].as_int != 0))
    1552           0 :         continue;
    1553             : 
    1554           0 :       if (cpi->rc.alt_ref_gf_group &&
    1555           0 :           cpi->rc.frames_since_golden > (cpi->rc.baseline_gf_interval >> 1) &&
    1556           0 :           ref_frame == GOLDEN_FRAME &&
    1557           0 :           frame_mv[this_mode][ref_frame].as_int != 0)
    1558           0 :         continue;
    1559             : 
    1560           0 :       if (cpi->rc.alt_ref_gf_group &&
    1561           0 :           cpi->rc.frames_since_golden < (cpi->rc.baseline_gf_interval >> 1) &&
    1562           0 :           ref_frame == ALTREF_FRAME &&
    1563           0 :           frame_mv[this_mode][ref_frame].as_int != 0)
    1564           0 :         continue;
    1565             :     }
    1566             : 
    1567           0 :     if (!(cpi->ref_frame_flags & flag_list[ref_frame])) continue;
    1568             : 
    1569           0 :     if (const_motion[ref_frame] && this_mode == NEARMV) continue;
    1570             : 
    1571             :     // Skip non-zeromv mode search for golden frame if force_skip_low_temp_var
    1572             :     // is set. If nearestmv for golden frame is 0, zeromv mode will be skipped
    1573             :     // later.
    1574           0 :     if (force_skip_low_temp_var && ref_frame == GOLDEN_FRAME &&
    1575           0 :         frame_mv[this_mode][ref_frame].as_int != 0) {
    1576           0 :       continue;
    1577             :     }
    1578             : 
    1579           0 :     if (cpi->sf.short_circuit_low_temp_var >= 2 && force_skip_low_temp_var &&
    1580           0 :         ref_frame == LAST_FRAME && this_mode == NEWMV) {
    1581           0 :       continue;
    1582             :     }
    1583             : 
    1584           0 :     if (cpi->use_svc) {
    1585           0 :       if (svc_force_zero_mode[ref_frame - 1] &&
    1586           0 :           frame_mv[this_mode][ref_frame].as_int != 0)
    1587           0 :         continue;
    1588             :     }
    1589             : 
    1590           0 :     if (sf->reference_masking &&
    1591           0 :         !(frame_mv[this_mode][ref_frame].as_int == 0 &&
    1592             :           ref_frame == LAST_FRAME)) {
    1593           0 :       if (usable_ref_frame < ALTREF_FRAME) {
    1594           0 :         if (!force_skip_low_temp_var && usable_ref_frame > LAST_FRAME) {
    1595           0 :           i = (ref_frame == LAST_FRAME) ? GOLDEN_FRAME : LAST_FRAME;
    1596           0 :           if ((cpi->ref_frame_flags & flag_list[i]))
    1597           0 :             if (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[i] << 1))
    1598           0 :               ref_frame_skip_mask |= (1 << ref_frame);
    1599             :         }
    1600           0 :       } else if (!cpi->rc.is_src_frame_alt_ref &&
    1601           0 :                  !(frame_mv[this_mode][ref_frame].as_int == 0 &&
    1602             :                    ref_frame == ALTREF_FRAME)) {
    1603           0 :         int ref1 = (ref_frame == GOLDEN_FRAME) ? LAST_FRAME : GOLDEN_FRAME;
    1604           0 :         int ref2 = (ref_frame == ALTREF_FRAME) ? LAST_FRAME : ALTREF_FRAME;
    1605           0 :         if (((cpi->ref_frame_flags & flag_list[ref1]) &&
    1606           0 :              (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[ref1] << 1))) ||
    1607           0 :             ((cpi->ref_frame_flags & flag_list[ref2]) &&
    1608           0 :              (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[ref2] << 1))))
    1609           0 :           ref_frame_skip_mask |= (1 << ref_frame);
    1610             :       }
    1611             :     }
    1612           0 :     if (ref_frame_skip_mask & (1 << ref_frame)) continue;
    1613             : 
    1614             :     // Select prediction reference frames.
    1615           0 :     for (i = 0; i < MAX_MB_PLANE; i++)
    1616           0 :       xd->plane[i].pre[0] = yv12_mb[ref_frame][i];
    1617             : 
    1618           0 :     mi->ref_frame[0] = ref_frame;
    1619           0 :     set_ref_ptrs(cm, xd, ref_frame, NONE);
    1620             : 
    1621           0 :     mode_index = mode_idx[ref_frame][INTER_OFFSET(this_mode)];
    1622           0 :     mode_rd_thresh = best_mode_skip_txfm ? rd_threshes[mode_index] << 1
    1623           0 :                                          : rd_threshes[mode_index];
    1624             : 
    1625             :     // Increase mode_rd_thresh value for GOLDEN_FRAME for improved encoding
    1626             :     // speed with little/no subjective quality loss.
    1627           0 :     if (cpi->sf.bias_golden && ref_frame == GOLDEN_FRAME &&
    1628           0 :         cpi->rc.frames_since_golden > 4)
    1629           0 :       mode_rd_thresh = mode_rd_thresh << 3;
    1630             : 
    1631           0 :     if (rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh,
    1632           0 :                             rd_thresh_freq_fact[mode_index]))
    1633           0 :       continue;
    1634             : 
    1635           0 :     if (this_mode == NEWMV) {
    1636           0 :       if (ref_frame > LAST_FRAME && !cpi->use_svc &&
    1637           0 :           cpi->oxcf.rc_mode == VPX_CBR) {
    1638             :         int tmp_sad;
    1639             :         uint32_t dis;
    1640             :         int cost_list[5];
    1641             : 
    1642           0 :         if (bsize < BLOCK_16X16) continue;
    1643             : 
    1644           0 :         tmp_sad = vp9_int_pro_motion_estimation(cpi, x, bsize, mi_row, mi_col);
    1645             : 
    1646           0 :         if (tmp_sad > x->pred_mv_sad[LAST_FRAME]) continue;
    1647           0 :         if (tmp_sad + (num_pels_log2_lookup[bsize] << 4) > best_pred_sad)
    1648           0 :           continue;
    1649             : 
    1650           0 :         frame_mv[NEWMV][ref_frame].as_int = mi->mv[0].as_int;
    1651           0 :         rate_mv = vp9_mv_bit_cost(&frame_mv[NEWMV][ref_frame].as_mv,
    1652           0 :                                   &x->mbmi_ext->ref_mvs[ref_frame][0].as_mv,
    1653           0 :                                   x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
    1654           0 :         frame_mv[NEWMV][ref_frame].as_mv.row >>= 3;
    1655           0 :         frame_mv[NEWMV][ref_frame].as_mv.col >>= 3;
    1656             : 
    1657           0 :         cpi->find_fractional_mv_step(
    1658           0 :             x, &frame_mv[NEWMV][ref_frame].as_mv,
    1659           0 :             &x->mbmi_ext->ref_mvs[ref_frame][0].as_mv,
    1660             :             cpi->common.allow_high_precision_mv, x->errorperbit,
    1661           0 :             &cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop,
    1662             :             cpi->sf.mv.subpel_iters_per_step, cond_cost_list(cpi, cost_list),
    1663           0 :             x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref_frame], NULL, 0,
    1664             :             0);
    1665           0 :       } else if (svc->use_base_mv && svc->spatial_layer_id) {
    1666           0 :         if (frame_mv[NEWMV][ref_frame].as_int != INVALID_MV) {
    1667           0 :           const int pre_stride = xd->plane[0].pre[0].stride;
    1668           0 :           int base_mv_sad = INT_MAX;
    1669           0 :           const float base_mv_bias = sf->base_mv_aggressive ? 1.5f : 1.0f;
    1670           0 :           const uint8_t *const pre_buf =
    1671           0 :               xd->plane[0].pre[0].buf +
    1672           0 :               (frame_mv[NEWMV][ref_frame].as_mv.row >> 3) * pre_stride +
    1673           0 :               (frame_mv[NEWMV][ref_frame].as_mv.col >> 3);
    1674           0 :           base_mv_sad = cpi->fn_ptr[bsize].sdf(
    1675           0 :               x->plane[0].src.buf, x->plane[0].src.stride, pre_buf, pre_stride);
    1676             : 
    1677           0 :           if (base_mv_sad < (int)(base_mv_bias * x->pred_mv_sad[ref_frame])) {
    1678             :             // Base layer mv is good.
    1679           0 :             if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
    1680           0 :                                         &frame_mv[NEWMV][ref_frame], &rate_mv,
    1681             :                                         best_rdc.rdcost, 1)) {
    1682           0 :               continue;
    1683             :             }
    1684           0 :           } else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
    1685           0 :                                              &frame_mv[NEWMV][ref_frame],
    1686             :                                              &rate_mv, best_rdc.rdcost, 0)) {
    1687           0 :             continue;
    1688             :           }
    1689           0 :         } else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
    1690           0 :                                            &frame_mv[NEWMV][ref_frame],
    1691             :                                            &rate_mv, best_rdc.rdcost, 0)) {
    1692           0 :           continue;
    1693             :         }
    1694           0 :       } else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
    1695           0 :                                          &frame_mv[NEWMV][ref_frame], &rate_mv,
    1696             :                                          best_rdc.rdcost, 0)) {
    1697           0 :         continue;
    1698             :       }
    1699             :     }
    1700             : 
    1701             :     // If use_golden_nonzeromv is false, NEWMV mode is skipped for golden, no
    1702             :     // need to compute best_pred_sad which is only used to skip golden NEWMV.
    1703           0 :     if (use_golden_nonzeromv && this_mode == NEWMV && ref_frame == LAST_FRAME &&
    1704           0 :         frame_mv[NEWMV][LAST_FRAME].as_int != INVALID_MV) {
    1705           0 :       const int pre_stride = xd->plane[0].pre[0].stride;
    1706           0 :       const uint8_t *const pre_buf =
    1707           0 :           xd->plane[0].pre[0].buf +
    1708           0 :           (frame_mv[NEWMV][LAST_FRAME].as_mv.row >> 3) * pre_stride +
    1709           0 :           (frame_mv[NEWMV][LAST_FRAME].as_mv.col >> 3);
    1710           0 :       best_pred_sad = cpi->fn_ptr[bsize].sdf(
    1711           0 :           x->plane[0].src.buf, x->plane[0].src.stride, pre_buf, pre_stride);
    1712           0 :       x->pred_mv_sad[LAST_FRAME] = best_pred_sad;
    1713             :     }
    1714             : 
    1715           0 :     if (this_mode != NEARESTMV &&
    1716           0 :         frame_mv[this_mode][ref_frame].as_int ==
    1717           0 :             frame_mv[NEARESTMV][ref_frame].as_int)
    1718           0 :       continue;
    1719             : 
    1720           0 :     mi->mode = this_mode;
    1721           0 :     mi->mv[0].as_int = frame_mv[this_mode][ref_frame].as_int;
    1722             : 
    1723             :     // Search for the best prediction filter type, when the resulting
    1724             :     // motion vector is at sub-pixel accuracy level for luma component, i.e.,
    1725             :     // the last three bits are all zeros.
    1726           0 :     if (reuse_inter_pred) {
    1727           0 :       if (!this_mode_pred) {
    1728           0 :         this_mode_pred = &tmp[3];
    1729             :       } else {
    1730           0 :         this_mode_pred = &tmp[get_pred_buffer(tmp, 3)];
    1731           0 :         pd->dst.buf = this_mode_pred->data;
    1732           0 :         pd->dst.stride = bw;
    1733             :       }
    1734             :     }
    1735             : 
    1736           0 :     if ((this_mode == NEWMV || filter_ref == SWITCHABLE) &&
    1737           0 :         pred_filter_search &&
    1738           0 :         (ref_frame == LAST_FRAME ||
    1739           0 :          (ref_frame == GOLDEN_FRAME &&
    1740           0 :           (cpi->use_svc || cpi->oxcf.rc_mode == VPX_VBR))) &&
    1741           0 :         (((mi->mv[0].as_mv.row | mi->mv[0].as_mv.col) & 0x07) != 0)) {
    1742             :       int pf_rate[3];
    1743             :       int64_t pf_dist[3];
    1744             :       unsigned int pf_var[3];
    1745             :       unsigned int pf_sse[3];
    1746             :       TX_SIZE pf_tx_size[3];
    1747           0 :       int64_t best_cost = INT64_MAX;
    1748           0 :       INTERP_FILTER best_filter = SWITCHABLE, filter;
    1749           0 :       PRED_BUFFER *current_pred = this_mode_pred;
    1750             : 
    1751           0 :       for (filter = EIGHTTAP; filter <= EIGHTTAP_SMOOTH; ++filter) {
    1752             :         int64_t cost;
    1753           0 :         mi->interp_filter = filter;
    1754           0 :         vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
    1755           0 :         model_rd_for_sb_y(cpi, bsize, x, xd, &pf_rate[filter], &pf_dist[filter],
    1756           0 :                           &pf_var[filter], &pf_sse[filter]);
    1757           0 :         pf_rate[filter] += vp9_get_switchable_rate(cpi, xd);
    1758           0 :         cost = RDCOST(x->rdmult, x->rddiv, pf_rate[filter], pf_dist[filter]);
    1759           0 :         pf_tx_size[filter] = mi->tx_size;
    1760           0 :         if (cost < best_cost) {
    1761           0 :           best_filter = filter;
    1762           0 :           best_cost = cost;
    1763           0 :           skip_txfm = x->skip_txfm[0];
    1764             : 
    1765           0 :           if (reuse_inter_pred) {
    1766           0 :             if (this_mode_pred != current_pred) {
    1767           0 :               free_pred_buffer(this_mode_pred);
    1768           0 :               this_mode_pred = current_pred;
    1769             :             }
    1770           0 :             current_pred = &tmp[get_pred_buffer(tmp, 3)];
    1771           0 :             pd->dst.buf = current_pred->data;
    1772           0 :             pd->dst.stride = bw;
    1773             :           }
    1774             :         }
    1775             :       }
    1776             : 
    1777           0 :       if (reuse_inter_pred && this_mode_pred != current_pred)
    1778           0 :         free_pred_buffer(current_pred);
    1779             : 
    1780           0 :       mi->interp_filter = best_filter;
    1781           0 :       mi->tx_size = pf_tx_size[best_filter];
    1782           0 :       this_rdc.rate = pf_rate[best_filter];
    1783           0 :       this_rdc.dist = pf_dist[best_filter];
    1784           0 :       var_y = pf_var[best_filter];
    1785           0 :       sse_y = pf_sse[best_filter];
    1786           0 :       x->skip_txfm[0] = skip_txfm;
    1787           0 :       if (reuse_inter_pred) {
    1788           0 :         pd->dst.buf = this_mode_pred->data;
    1789           0 :         pd->dst.stride = this_mode_pred->stride;
    1790             :       }
    1791             :     } else {
    1792             : // TODO(jackychen): the low-bitdepth condition causes a segfault in
    1793             : // high-bitdepth builds.
    1794             : // https://bugs.chromium.org/p/webm/issues/detail?id=1250
    1795             : #if CONFIG_VP9_HIGHBITDEPTH
    1796             :       const int large_block = bsize > BLOCK_32X32;
    1797             : #else
    1798           0 :       const int large_block =
    1799           0 :           x->sb_is_skin ? bsize > BLOCK_32X32 : bsize >= BLOCK_32X32;
    1800             : #endif
    1801           0 :       mi->interp_filter = (filter_ref == SWITCHABLE) ? EIGHTTAP : filter_ref;
    1802           0 :       vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
    1803             : 
    1804             :       // For large partition blocks, extra testing is done.
    1805           0 :       if (cpi->oxcf.rc_mode == VPX_CBR && large_block &&
    1806           0 :           !cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id) &&
    1807           0 :           cm->base_qindex) {
    1808           0 :         model_rd_for_sb_y_large(cpi, bsize, x, xd, &this_rdc.rate,
    1809             :                                 &this_rdc.dist, &var_y, &sse_y, mi_row, mi_col,
    1810             :                                 &this_early_term);
    1811             :       } else {
    1812           0 :         model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist,
    1813             :                           &var_y, &sse_y);
    1814             :       }
    1815             :     }
    1816             : 
    1817           0 :     if (!this_early_term) {
    1818           0 :       this_sse = (int64_t)sse_y;
    1819           0 :       block_yrd(cpi, x, &this_rdc, &is_skippable, &this_sse, bsize,
    1820           0 :                 VPXMIN(mi->tx_size, TX_16X16));
    1821           0 :       x->skip_txfm[0] = is_skippable;
    1822           0 :       if (is_skippable) {
    1823           0 :         this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
    1824             :       } else {
    1825           0 :         if (RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist) <
    1826           0 :             RDCOST(x->rdmult, x->rddiv, 0, this_sse)) {
    1827           0 :           this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
    1828             :         } else {
    1829           0 :           this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
    1830           0 :           this_rdc.dist = this_sse;
    1831           0 :           x->skip_txfm[0] = SKIP_TXFM_AC_DC;
    1832             :         }
    1833             :       }
    1834             : 
    1835           0 :       if (cm->interp_filter == SWITCHABLE) {
    1836           0 :         if ((mi->mv[0].as_mv.row | mi->mv[0].as_mv.col) & 0x07)
    1837           0 :           this_rdc.rate += vp9_get_switchable_rate(cpi, xd);
    1838             :       }
    1839             :     } else {
    1840           0 :       this_rdc.rate += cm->interp_filter == SWITCHABLE
    1841             :                            ? vp9_get_switchable_rate(cpi, xd)
    1842           0 :                            : 0;
    1843           0 :       this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
    1844             :     }
    1845             : 
    1846           0 :     if (x->color_sensitivity[0] || x->color_sensitivity[1]) {
    1847             :       RD_COST rdc_uv;
    1848           0 :       const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, &xd->plane[1]);
    1849           0 :       if (x->color_sensitivity[0])
    1850           0 :         vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, 1);
    1851           0 :       if (x->color_sensitivity[1])
    1852           0 :         vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, 2);
    1853           0 :       model_rd_for_sb_uv(cpi, uv_bsize, x, xd, &rdc_uv, &var_y, &sse_y, 1, 2);
    1854           0 :       this_rdc.rate += rdc_uv.rate;
    1855           0 :       this_rdc.dist += rdc_uv.dist;
    1856             :     }
    1857             : 
    1858           0 :     this_rdc.rate += rate_mv;
    1859           0 :     this_rdc.rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
    1860           0 :                                          [INTER_OFFSET(this_mode)];
    1861           0 :     this_rdc.rate += ref_frame_cost[ref_frame];
    1862           0 :     this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
    1863             : 
    1864             :     // Bias against NEWMV that is very different from its neighbors, and bias
    1865             :     // to small motion-lastref for noisy input.
    1866           0 :     if (cpi->oxcf.rc_mode == VPX_CBR && cpi->oxcf.speed >= 5 &&
    1867           0 :         cpi->oxcf.content != VP9E_CONTENT_SCREEN) {
    1868           0 :       vp9_NEWMV_diff_bias(&cpi->noise_estimate, xd, this_mode, &this_rdc, bsize,
    1869           0 :                           frame_mv[this_mode][ref_frame].as_mv.row,
    1870           0 :                           frame_mv[this_mode][ref_frame].as_mv.col,
    1871             :                           ref_frame == LAST_FRAME);
    1872             :     }
    1873             : 
    1874             :     // Skipping checking: test to see if this block can be reconstructed by
    1875             :     // prediction only.
    1876           0 :     if (cpi->allow_encode_breakout) {
    1877           0 :       encode_breakout_test(cpi, x, bsize, mi_row, mi_col, ref_frame, this_mode,
    1878             :                            var_y, sse_y, yv12_mb, &this_rdc.rate,
    1879             :                            &this_rdc.dist);
    1880           0 :       if (x->skip) {
    1881           0 :         this_rdc.rate += rate_mv;
    1882           0 :         this_rdc.rdcost =
    1883           0 :             RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
    1884             :       }
    1885             :     }
    1886             : 
    1887             : #if CONFIG_VP9_TEMPORAL_DENOISING
    1888             :     if (cpi->oxcf.noise_sensitivity > 0 &&
    1889             :         cpi->denoiser.denoising_level > kDenLowLow) {
    1890             :       vp9_denoiser_update_frame_stats(mi, sse_y, this_mode, ctx);
    1891             :       // Keep track of zero_last cost.
    1892             :       if (ref_frame == LAST_FRAME && frame_mv[this_mode][ref_frame].as_int == 0)
    1893             :         zero_last_cost_orig = this_rdc.rdcost;
    1894             :     }
    1895             : #else
    1896             :     (void)ctx;
    1897             : #endif
    1898             : 
    1899           0 :     if (this_rdc.rdcost < best_rdc.rdcost || x->skip) {
    1900           0 :       best_rdc = this_rdc;
    1901           0 :       best_mode = this_mode;
    1902           0 :       best_pred_filter = mi->interp_filter;
    1903           0 :       best_tx_size = mi->tx_size;
    1904           0 :       best_ref_frame = ref_frame;
    1905           0 :       best_mode_skip_txfm = x->skip_txfm[0];
    1906           0 :       best_early_term = this_early_term;
    1907             : 
    1908           0 :       if (reuse_inter_pred) {
    1909           0 :         free_pred_buffer(best_pred);
    1910           0 :         best_pred = this_mode_pred;
    1911             :       }
    1912             :     } else {
    1913           0 :       if (reuse_inter_pred) free_pred_buffer(this_mode_pred);
    1914             :     }
    1915             : 
    1916           0 :     if (x->skip) break;
    1917             : 
    1918             :     // If early termination flag is 1 and at least 2 modes are checked,
    1919             :     // the mode search is terminated.
    1920           0 :     if (best_early_term && idx > 0) {
    1921           0 :       x->skip = 1;
    1922           0 :       break;
    1923             :     }
    1924             :   }
    1925             : 
    1926           0 :   mi->mode = best_mode;
    1927           0 :   mi->interp_filter = best_pred_filter;
    1928           0 :   mi->tx_size = best_tx_size;
    1929           0 :   mi->ref_frame[0] = best_ref_frame;
    1930           0 :   mi->mv[0].as_int = frame_mv[best_mode][best_ref_frame].as_int;
    1931           0 :   xd->mi[0]->bmi[0].as_mv[0].as_int = mi->mv[0].as_int;
    1932           0 :   x->skip_txfm[0] = best_mode_skip_txfm;
    1933             : 
    1934             :   // For spatial enhancemanent layer: perform intra prediction only if base
    1935             :   // layer is chosen as the reference. Always perform intra prediction if
    1936             :   // LAST is the only reference or is_key_frame is set.
    1937           0 :   if (cpi->svc.spatial_layer_id) {
    1938           0 :     perform_intra_pred =
    1939           0 :         cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame ||
    1940           0 :         !(cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) ||
    1941           0 :         (!cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame &&
    1942           0 :          svc_force_zero_mode[best_ref_frame - 1]);
    1943           0 :     inter_mode_thresh = (inter_mode_thresh << 1) + inter_mode_thresh;
    1944             :   }
    1945           0 :   if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR &&
    1946           0 :       cpi->rc.is_src_frame_alt_ref)
    1947           0 :     perform_intra_pred = 0;
    1948             :   // Perform intra prediction search, if the best SAD is above a certain
    1949             :   // threshold.
    1950           0 :   if ((!force_skip_low_temp_var || bsize < BLOCK_32X32) && perform_intra_pred &&
    1951           0 :       (best_rdc.rdcost == INT64_MAX ||
    1952           0 :        (!x->skip && best_rdc.rdcost > inter_mode_thresh &&
    1953           0 :         bsize <= cpi->sf.max_intra_bsize))) {
    1954           0 :     struct estimate_block_intra_args args = { cpi, x, DC_PRED, 1, 0 };
    1955             :     int i;
    1956           0 :     TX_SIZE best_intra_tx_size = TX_SIZES;
    1957           0 :     TX_SIZE intra_tx_size =
    1958           0 :         VPXMIN(max_txsize_lookup[bsize],
    1959             :                tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
    1960           0 :     if (cpi->oxcf.content != VP9E_CONTENT_SCREEN && intra_tx_size > TX_16X16)
    1961           0 :       intra_tx_size = TX_16X16;
    1962             : 
    1963           0 :     if (reuse_inter_pred && best_pred != NULL) {
    1964           0 :       if (best_pred->data == orig_dst.buf) {
    1965           0 :         this_mode_pred = &tmp[get_pred_buffer(tmp, 3)];
    1966             : #if CONFIG_VP9_HIGHBITDEPTH
    1967             :         if (cm->use_highbitdepth)
    1968             :           vpx_highbd_convolve_copy(best_pred->data, best_pred->stride,
    1969             :                                    this_mode_pred->data, this_mode_pred->stride,
    1970             :                                    NULL, 0, NULL, 0, bw, bh, xd->bd);
    1971             :         else
    1972             :           vpx_convolve_copy(best_pred->data, best_pred->stride,
    1973             :                             this_mode_pred->data, this_mode_pred->stride, NULL,
    1974             :                             0, NULL, 0, bw, bh);
    1975             : #else
    1976           0 :         vpx_convolve_copy(best_pred->data, best_pred->stride,
    1977           0 :                           this_mode_pred->data, this_mode_pred->stride, NULL, 0,
    1978             :                           NULL, 0, bw, bh);
    1979             : #endif  // CONFIG_VP9_HIGHBITDEPTH
    1980           0 :         best_pred = this_mode_pred;
    1981             :       }
    1982             :     }
    1983           0 :     pd->dst = orig_dst;
    1984             : 
    1985           0 :     for (i = 0; i < 4; ++i) {
    1986           0 :       const PREDICTION_MODE this_mode = intra_mode_list[i];
    1987           0 :       THR_MODES mode_index = mode_idx[INTRA_FRAME][mode_offset(this_mode)];
    1988           0 :       int mode_rd_thresh = rd_threshes[mode_index];
    1989           0 :       if (sf->short_circuit_flat_blocks && x->source_variance == 0 &&
    1990             :           this_mode != DC_PRED) {
    1991           0 :         continue;
    1992             :       }
    1993             : 
    1994           0 :       if (!((1 << this_mode) & cpi->sf.intra_y_mode_bsize_mask[bsize]))
    1995           0 :         continue;
    1996             : 
    1997           0 :       if (rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh,
    1998           0 :                               rd_thresh_freq_fact[mode_index]))
    1999           0 :         continue;
    2000             : 
    2001           0 :       mi->mode = this_mode;
    2002           0 :       mi->ref_frame[0] = INTRA_FRAME;
    2003           0 :       this_rdc.dist = this_rdc.rate = 0;
    2004           0 :       args.mode = this_mode;
    2005           0 :       args.skippable = 1;
    2006           0 :       args.rdc = &this_rdc;
    2007           0 :       mi->tx_size = intra_tx_size;
    2008           0 :       vp9_foreach_transformed_block_in_plane(xd, bsize, 0, estimate_block_intra,
    2009             :                                              &args);
    2010             :       // Check skip cost here since skippable is not set for for uv, this
    2011             :       // mirrors the behavior used by inter
    2012           0 :       if (args.skippable) {
    2013           0 :         x->skip_txfm[0] = SKIP_TXFM_AC_DC;
    2014           0 :         this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 1);
    2015             :       } else {
    2016           0 :         x->skip_txfm[0] = SKIP_TXFM_NONE;
    2017           0 :         this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 0);
    2018             :       }
    2019             :       // Inter and intra RD will mismatch in scale for non-screen content.
    2020           0 :       if (cpi->oxcf.content == VP9E_CONTENT_SCREEN) {
    2021           0 :         if (x->color_sensitivity[0])
    2022           0 :           vp9_foreach_transformed_block_in_plane(xd, bsize, 1,
    2023             :                                                  estimate_block_intra, &args);
    2024           0 :         if (x->color_sensitivity[1])
    2025           0 :           vp9_foreach_transformed_block_in_plane(xd, bsize, 2,
    2026             :                                                  estimate_block_intra, &args);
    2027             :       }
    2028           0 :       this_rdc.rate += cpi->mbmode_cost[this_mode];
    2029           0 :       this_rdc.rate += ref_frame_cost[INTRA_FRAME];
    2030           0 :       this_rdc.rate += intra_cost_penalty;
    2031           0 :       this_rdc.rdcost =
    2032           0 :           RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
    2033             : 
    2034           0 :       if (this_rdc.rdcost < best_rdc.rdcost) {
    2035           0 :         best_rdc = this_rdc;
    2036           0 :         best_mode = this_mode;
    2037           0 :         best_intra_tx_size = mi->tx_size;
    2038           0 :         best_ref_frame = INTRA_FRAME;
    2039           0 :         mi->uv_mode = this_mode;
    2040           0 :         mi->mv[0].as_int = INVALID_MV;
    2041           0 :         best_mode_skip_txfm = x->skip_txfm[0];
    2042             :       }
    2043             :     }
    2044             : 
    2045             :     // Reset mb_mode_info to the best inter mode.
    2046           0 :     if (best_ref_frame != INTRA_FRAME) {
    2047           0 :       mi->tx_size = best_tx_size;
    2048             :     } else {
    2049           0 :       mi->tx_size = best_intra_tx_size;
    2050             :     }
    2051             :   }
    2052             : 
    2053           0 :   pd->dst = orig_dst;
    2054           0 :   mi->mode = best_mode;
    2055           0 :   mi->ref_frame[0] = best_ref_frame;
    2056           0 :   x->skip_txfm[0] = best_mode_skip_txfm;
    2057             : 
    2058           0 :   if (!is_inter_block(mi)) {
    2059           0 :     mi->interp_filter = SWITCHABLE_FILTERS;
    2060             :   }
    2061             : 
    2062           0 :   if (reuse_inter_pred && best_pred != NULL) {
    2063           0 :     if (best_pred->data != orig_dst.buf && is_inter_mode(mi->mode)) {
    2064             : #if CONFIG_VP9_HIGHBITDEPTH
    2065             :       if (cm->use_highbitdepth)
    2066             :         vpx_highbd_convolve_copy(best_pred->data, best_pred->stride,
    2067             :                                  pd->dst.buf, pd->dst.stride, NULL, 0, NULL, 0,
    2068             :                                  bw, bh, xd->bd);
    2069             :       else
    2070             :         vpx_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf,
    2071             :                           pd->dst.stride, NULL, 0, NULL, 0, bw, bh);
    2072             : #else
    2073           0 :       vpx_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf,
    2074           0 :                         pd->dst.stride, NULL, 0, NULL, 0, bw, bh);
    2075             : #endif  // CONFIG_VP9_HIGHBITDEPTH
    2076             :     }
    2077             :   }
    2078             : 
    2079             : #if CONFIG_VP9_TEMPORAL_DENOISING
    2080             :   if (cpi->oxcf.noise_sensitivity > 0 && cpi->resize_pending == 0 &&
    2081             :       cpi->denoiser.denoising_level > kDenLowLow && cpi->denoiser.reset == 0) {
    2082             :     VP9_DENOISER_DECISION decision = COPY_BLOCK;
    2083             :     vp9_pickmode_ctx_den_update(&ctx_den, zero_last_cost_orig, ref_frame_cost,
    2084             :                                 frame_mv, reuse_inter_pred, best_tx_size,
    2085             :                                 best_mode, best_ref_frame, best_pred_filter,
    2086             :                                 best_mode_skip_txfm);
    2087             :     vp9_denoiser_denoise(cpi, x, mi_row, mi_col, bsize, ctx, &decision);
    2088             :     recheck_zeromv_after_denoising(cpi, mi, x, xd, decision, &ctx_den, yv12_mb,
    2089             :                                    &best_rdc, bsize, mi_row, mi_col);
    2090             :     best_ref_frame = ctx_den.best_ref_frame;
    2091             :   }
    2092             : #endif
    2093             : 
    2094           0 :   if (cpi->sf.adaptive_rd_thresh) {
    2095           0 :     THR_MODES best_mode_idx = mode_idx[best_ref_frame][mode_offset(mi->mode)];
    2096             : 
    2097           0 :     if (best_ref_frame == INTRA_FRAME) {
    2098             :       // Only consider the modes that are included in the intra_mode_list.
    2099           0 :       int intra_modes = sizeof(intra_mode_list) / sizeof(PREDICTION_MODE);
    2100             :       int i;
    2101             : 
    2102             :       // TODO(yunqingwang): Check intra mode mask and only update freq_fact
    2103             :       // for those valid modes.
    2104           0 :       for (i = 0; i < intra_modes; i++) {
    2105           0 :         update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize,
    2106           0 :                                 INTRA_FRAME, best_mode_idx, intra_mode_list[i]);
    2107             :       }
    2108             :     } else {
    2109           0 :       for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) {
    2110             :         PREDICTION_MODE this_mode;
    2111           0 :         if (best_ref_frame != ref_frame) continue;
    2112           0 :         for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) {
    2113           0 :           update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize,
    2114             :                                   ref_frame, best_mode_idx, this_mode);
    2115             :         }
    2116             :       }
    2117             :     }
    2118             :   }
    2119             : 
    2120           0 :   *rd_cost = best_rdc;
    2121           0 : }
    2122             : 
    2123           0 : void vp9_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x, int mi_row,
    2124             :                                 int mi_col, RD_COST *rd_cost, BLOCK_SIZE bsize,
    2125             :                                 PICK_MODE_CONTEXT *ctx) {
    2126           0 :   VP9_COMMON *const cm = &cpi->common;
    2127           0 :   SPEED_FEATURES *const sf = &cpi->sf;
    2128           0 :   MACROBLOCKD *const xd = &x->e_mbd;
    2129           0 :   MODE_INFO *const mi = xd->mi[0];
    2130           0 :   MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext;
    2131           0 :   const struct segmentation *const seg = &cm->seg;
    2132           0 :   MV_REFERENCE_FRAME ref_frame, second_ref_frame = NONE;
    2133           0 :   MV_REFERENCE_FRAME best_ref_frame = NONE;
    2134           0 :   unsigned char segment_id = mi->segment_id;
    2135             :   struct buf_2d yv12_mb[4][MAX_MB_PLANE];
    2136             :   static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
    2137             :                                     VP9_ALT_FLAG };
    2138           0 :   int64_t best_rd = INT64_MAX;
    2139             :   b_mode_info bsi[MAX_REF_FRAMES][4];
    2140           0 :   int ref_frame_skip_mask = 0;
    2141           0 :   const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
    2142           0 :   const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
    2143             :   int idx, idy;
    2144             : 
    2145           0 :   x->skip_encode = sf->skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
    2146           0 :   ctx->pred_pixel_ready = 0;
    2147             : 
    2148           0 :   for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) {
    2149           0 :     const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame);
    2150             :     int_mv dummy_mv[2];
    2151           0 :     x->pred_mv_sad[ref_frame] = INT_MAX;
    2152             : 
    2153           0 :     if ((cpi->ref_frame_flags & flag_list[ref_frame]) && (yv12 != NULL)) {
    2154           0 :       int_mv *const candidates = mbmi_ext->ref_mvs[ref_frame];
    2155           0 :       const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf;
    2156           0 :       vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf,
    2157             :                            sf);
    2158           0 :       vp9_find_mv_refs(cm, xd, xd->mi[0], ref_frame, candidates, mi_row, mi_col,
    2159           0 :                        mbmi_ext->mode_context);
    2160             : 
    2161           0 :       vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates,
    2162             :                             &dummy_mv[0], &dummy_mv[1]);
    2163             :     } else {
    2164           0 :       ref_frame_skip_mask |= (1 << ref_frame);
    2165             :     }
    2166             :   }
    2167             : 
    2168           0 :   mi->sb_type = bsize;
    2169           0 :   mi->tx_size = TX_4X4;
    2170           0 :   mi->uv_mode = DC_PRED;
    2171           0 :   mi->ref_frame[0] = LAST_FRAME;
    2172           0 :   mi->ref_frame[1] = NONE;
    2173           0 :   mi->interp_filter =
    2174           0 :       cm->interp_filter == SWITCHABLE ? EIGHTTAP : cm->interp_filter;
    2175             : 
    2176           0 :   for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) {
    2177           0 :     int64_t this_rd = 0;
    2178             :     int plane;
    2179             : 
    2180           0 :     if (ref_frame_skip_mask & (1 << ref_frame)) continue;
    2181             : 
    2182             : #if CONFIG_BETTER_HW_COMPATIBILITY
    2183             :     if ((bsize == BLOCK_8X4 || bsize == BLOCK_4X8) && ref_frame > INTRA_FRAME &&
    2184             :         vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf))
    2185             :       continue;
    2186             : #endif
    2187             : 
    2188             :     // TODO(jingning, agrange): Scaling reference frame not supported for
    2189             :     // sub8x8 blocks. Is this supported now?
    2190           0 :     if (ref_frame > INTRA_FRAME &&
    2191           0 :         vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf))
    2192           0 :       continue;
    2193             : 
    2194             :     // If the segment reference frame feature is enabled....
    2195             :     // then do nothing if the current ref frame is not allowed..
    2196           0 :     if (segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) &&
    2197           0 :         get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame)
    2198           0 :       continue;
    2199             : 
    2200           0 :     mi->ref_frame[0] = ref_frame;
    2201           0 :     x->skip = 0;
    2202           0 :     set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);
    2203             : 
    2204             :     // Select prediction reference frames.
    2205           0 :     for (plane = 0; plane < MAX_MB_PLANE; plane++)
    2206           0 :       xd->plane[plane].pre[0] = yv12_mb[ref_frame][plane];
    2207             : 
    2208           0 :     for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
    2209           0 :       for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
    2210             :         int_mv b_mv[MB_MODE_COUNT];
    2211           0 :         int64_t b_best_rd = INT64_MAX;
    2212           0 :         const int i = idy * 2 + idx;
    2213             :         PREDICTION_MODE this_mode;
    2214             :         RD_COST this_rdc;
    2215             :         unsigned int var_y, sse_y;
    2216             : 
    2217           0 :         struct macroblock_plane *p = &x->plane[0];
    2218           0 :         struct macroblockd_plane *pd = &xd->plane[0];
    2219             : 
    2220           0 :         const struct buf_2d orig_src = p->src;
    2221           0 :         const struct buf_2d orig_dst = pd->dst;
    2222             :         struct buf_2d orig_pre[2];
    2223           0 :         memcpy(orig_pre, xd->plane[0].pre, sizeof(orig_pre));
    2224             : 
    2225             :         // set buffer pointers for sub8x8 motion search.
    2226           0 :         p->src.buf =
    2227           0 :             &p->src.buf[vp9_raster_block_offset(BLOCK_8X8, i, p->src.stride)];
    2228           0 :         pd->dst.buf =
    2229           0 :             &pd->dst.buf[vp9_raster_block_offset(BLOCK_8X8, i, pd->dst.stride)];
    2230           0 :         pd->pre[0].buf =
    2231           0 :             &pd->pre[0]
    2232           0 :                  .buf[vp9_raster_block_offset(BLOCK_8X8, i, pd->pre[0].stride)];
    2233             : 
    2234           0 :         b_mv[ZEROMV].as_int = 0;
    2235           0 :         b_mv[NEWMV].as_int = INVALID_MV;
    2236           0 :         vp9_append_sub8x8_mvs_for_idx(cm, xd, i, 0, mi_row, mi_col,
    2237             :                                       &b_mv[NEARESTMV], &b_mv[NEARMV],
    2238           0 :                                       mbmi_ext->mode_context);
    2239             : 
    2240           0 :         for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) {
    2241           0 :           int b_rate = 0;
    2242           0 :           xd->mi[0]->bmi[i].as_mv[0].as_int = b_mv[this_mode].as_int;
    2243             : 
    2244           0 :           if (this_mode == NEWMV) {
    2245           0 :             const int step_param = cpi->sf.mv.fullpel_search_step_param;
    2246             :             MV mvp_full;
    2247             :             MV tmp_mv;
    2248             :             int cost_list[5];
    2249           0 :             const MvLimits tmp_mv_limits = x->mv_limits;
    2250             :             uint32_t dummy_dist;
    2251             : 
    2252           0 :             if (i == 0) {
    2253           0 :               mvp_full.row = b_mv[NEARESTMV].as_mv.row >> 3;
    2254           0 :               mvp_full.col = b_mv[NEARESTMV].as_mv.col >> 3;
    2255             :             } else {
    2256           0 :               mvp_full.row = xd->mi[0]->bmi[0].as_mv[0].as_mv.row >> 3;
    2257           0 :               mvp_full.col = xd->mi[0]->bmi[0].as_mv[0].as_mv.col >> 3;
    2258             :             }
    2259             : 
    2260           0 :             vp9_set_mv_search_range(&x->mv_limits,
    2261           0 :                                     &mbmi_ext->ref_mvs[0]->as_mv);
    2262             : 
    2263           0 :             vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param,
    2264             :                                   x->sadperbit4, cond_cost_list(cpi, cost_list),
    2265           0 :                                   &mbmi_ext->ref_mvs[ref_frame][0].as_mv,
    2266             :                                   &tmp_mv, INT_MAX, 0);
    2267             : 
    2268           0 :             x->mv_limits = tmp_mv_limits;
    2269             : 
    2270             :             // calculate the bit cost on motion vector
    2271           0 :             mvp_full.row = tmp_mv.row * 8;
    2272           0 :             mvp_full.col = tmp_mv.col * 8;
    2273             : 
    2274           0 :             b_rate += vp9_mv_bit_cost(
    2275           0 :                 &mvp_full, &mbmi_ext->ref_mvs[ref_frame][0].as_mv,
    2276           0 :                 x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
    2277             : 
    2278           0 :             b_rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
    2279           0 :                                           [INTER_OFFSET(NEWMV)];
    2280           0 :             if (RDCOST(x->rdmult, x->rddiv, b_rate, 0) > b_best_rd) continue;
    2281             : 
    2282           0 :             cpi->find_fractional_mv_step(
    2283           0 :                 x, &tmp_mv, &mbmi_ext->ref_mvs[ref_frame][0].as_mv,
    2284             :                 cpi->common.allow_high_precision_mv, x->errorperbit,
    2285           0 :                 &cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop,
    2286             :                 cpi->sf.mv.subpel_iters_per_step,
    2287           0 :                 cond_cost_list(cpi, cost_list), x->nmvjointcost, x->mvcost,
    2288           0 :                 &dummy_dist, &x->pred_sse[ref_frame], NULL, 0, 0);
    2289             : 
    2290           0 :             xd->mi[0]->bmi[i].as_mv[0].as_mv = tmp_mv;
    2291             :           } else {
    2292           0 :             b_rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
    2293           0 :                                           [INTER_OFFSET(this_mode)];
    2294             :           }
    2295             : 
    2296             : #if CONFIG_VP9_HIGHBITDEPTH
    2297             :           if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
    2298             :             vp9_highbd_build_inter_predictor(
    2299             :                 pd->pre[0].buf, pd->pre[0].stride, pd->dst.buf, pd->dst.stride,
    2300             :                 &xd->mi[0]->bmi[i].as_mv[0].as_mv, &xd->block_refs[0]->sf,
    2301             :                 4 * num_4x4_blocks_wide, 4 * num_4x4_blocks_high, 0,
    2302             :                 vp9_filter_kernels[mi->interp_filter], MV_PRECISION_Q3,
    2303             :                 mi_col * MI_SIZE + 4 * (i & 0x01),
    2304             :                 mi_row * MI_SIZE + 4 * (i >> 1), xd->bd);
    2305             :           } else {
    2306             : #endif
    2307           0 :             vp9_build_inter_predictor(
    2308           0 :                 pd->pre[0].buf, pd->pre[0].stride, pd->dst.buf, pd->dst.stride,
    2309           0 :                 &xd->mi[0]->bmi[i].as_mv[0].as_mv, &xd->block_refs[0]->sf,
    2310             :                 4 * num_4x4_blocks_wide, 4 * num_4x4_blocks_high, 0,
    2311           0 :                 vp9_filter_kernels[mi->interp_filter], MV_PRECISION_Q3,
    2312           0 :                 mi_col * MI_SIZE + 4 * (i & 0x01),
    2313           0 :                 mi_row * MI_SIZE + 4 * (i >> 1));
    2314             : 
    2315             : #if CONFIG_VP9_HIGHBITDEPTH
    2316             :           }
    2317             : #endif
    2318             : 
    2319           0 :           model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist,
    2320             :                             &var_y, &sse_y);
    2321             : 
    2322           0 :           this_rdc.rate += b_rate;
    2323           0 :           this_rdc.rdcost =
    2324           0 :               RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
    2325           0 :           if (this_rdc.rdcost < b_best_rd) {
    2326           0 :             b_best_rd = this_rdc.rdcost;
    2327           0 :             bsi[ref_frame][i].as_mode = this_mode;
    2328           0 :             bsi[ref_frame][i].as_mv[0].as_mv = xd->mi[0]->bmi[i].as_mv[0].as_mv;
    2329             :           }
    2330             :         }  // mode search
    2331             : 
    2332             :         // restore source and prediction buffer pointers.
    2333           0 :         p->src = orig_src;
    2334           0 :         pd->pre[0] = orig_pre[0];
    2335           0 :         pd->dst = orig_dst;
    2336           0 :         this_rd += b_best_rd;
    2337             : 
    2338           0 :         xd->mi[0]->bmi[i] = bsi[ref_frame][i];
    2339           0 :         if (num_4x4_blocks_wide > 1) xd->mi[0]->bmi[i + 1] = xd->mi[0]->bmi[i];
    2340           0 :         if (num_4x4_blocks_high > 1) xd->mi[0]->bmi[i + 2] = xd->mi[0]->bmi[i];
    2341             :       }
    2342             :     }  // loop through sub8x8 blocks
    2343             : 
    2344           0 :     if (this_rd < best_rd) {
    2345           0 :       best_rd = this_rd;
    2346           0 :       best_ref_frame = ref_frame;
    2347             :     }
    2348             :   }  // reference frames
    2349             : 
    2350           0 :   mi->tx_size = TX_4X4;
    2351           0 :   mi->ref_frame[0] = best_ref_frame;
    2352           0 :   for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
    2353           0 :     for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
    2354           0 :       const int block = idy * 2 + idx;
    2355           0 :       xd->mi[0]->bmi[block] = bsi[best_ref_frame][block];
    2356           0 :       if (num_4x4_blocks_wide > 1)
    2357           0 :         xd->mi[0]->bmi[block + 1] = bsi[best_ref_frame][block];
    2358           0 :       if (num_4x4_blocks_high > 1)
    2359           0 :         xd->mi[0]->bmi[block + 2] = bsi[best_ref_frame][block];
    2360             :     }
    2361             :   }
    2362           0 :   mi->mode = xd->mi[0]->bmi[3].as_mode;
    2363           0 :   ctx->mic = *(xd->mi[0]);
    2364           0 :   ctx->mbmi_ext = *x->mbmi_ext;
    2365           0 :   ctx->skip_txfm[0] = SKIP_TXFM_NONE;
    2366           0 :   ctx->skip = 0;
    2367             :   // Dummy assignment for speed -5. No effect in speed -6.
    2368           0 :   rd_cost->rdcost = best_rd;
    2369           0 : }

Generated by: LCOV version 1.13