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      1 /*
      2  * Copyright (c) 2010 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 <math.h>
     12 #include <stdio.h>
     13 #include <limits.h>
     14 
     15 #include "./vp9_rtcd.h"
     16 #include "./vpx_config.h"
     17 #include "./vpx_dsp_rtcd.h"
     18 #include "./vpx_scale_rtcd.h"
     19 #include "vpx/internal/vpx_psnr.h"
     20 #include "vpx_dsp/vpx_dsp_common.h"
     21 #include "vpx_dsp/vpx_filter.h"
     22 #if CONFIG_INTERNAL_STATS
     23 #include "vpx_dsp/ssim.h"
     24 #endif
     25 #include "vpx_ports/mem.h"
     26 #include "vpx_ports/system_state.h"
     27 #include "vpx_ports/vpx_timer.h"
     28 
     29 #include "vp9/common/vp9_alloccommon.h"
     30 #include "vp9/common/vp9_filter.h"
     31 #include "vp9/common/vp9_idct.h"
     32 #if CONFIG_VP9_POSTPROC
     33 #include "vp9/common/vp9_postproc.h"
     34 #endif
     35 #include "vp9/common/vp9_reconinter.h"
     36 #include "vp9/common/vp9_reconintra.h"
     37 #include "vp9/common/vp9_tile_common.h"
     38 
     39 #include "vp9/encoder/vp9_aq_complexity.h"
     40 #include "vp9/encoder/vp9_aq_cyclicrefresh.h"
     41 #include "vp9/encoder/vp9_aq_variance.h"
     42 #include "vp9/encoder/vp9_bitstream.h"
     43 #include "vp9/encoder/vp9_context_tree.h"
     44 #include "vp9/encoder/vp9_encodeframe.h"
     45 #include "vp9/encoder/vp9_encodemv.h"
     46 #include "vp9/encoder/vp9_encoder.h"
     47 #include "vp9/encoder/vp9_ethread.h"
     48 #include "vp9/encoder/vp9_firstpass.h"
     49 #include "vp9/encoder/vp9_mbgraph.h"
     50 #include "vp9/encoder/vp9_picklpf.h"
     51 #include "vp9/encoder/vp9_ratectrl.h"
     52 #include "vp9/encoder/vp9_rd.h"
     53 #include "vp9/encoder/vp9_resize.h"
     54 #include "vp9/encoder/vp9_segmentation.h"
     55 #include "vp9/encoder/vp9_skin_detection.h"
     56 #include "vp9/encoder/vp9_speed_features.h"
     57 #include "vp9/encoder/vp9_svc_layercontext.h"
     58 #include "vp9/encoder/vp9_temporal_filter.h"
     59 
     60 #define AM_SEGMENT_ID_INACTIVE 7
     61 #define AM_SEGMENT_ID_ACTIVE 0
     62 
     63 #define SHARP_FILTER_QTHRESH 0          /* Q threshold for 8-tap sharp filter */
     64 
     65 #define ALTREF_HIGH_PRECISION_MV 1      // Whether to use high precision mv
     66                                          //  for altref computation.
     67 #define HIGH_PRECISION_MV_QTHRESH 200   // Q threshold for high precision
     68                                          // mv. Choose a very high value for
     69                                          // now so that HIGH_PRECISION is always
     70                                          // chosen.
     71 // #define OUTPUT_YUV_REC
     72 
     73 #ifdef OUTPUT_YUV_DENOISED
     74 FILE *yuv_denoised_file = NULL;
     75 #endif
     76 #ifdef OUTPUT_YUV_SKINMAP
     77 FILE *yuv_skinmap_file = NULL;
     78 #endif
     79 #ifdef OUTPUT_YUV_REC
     80 FILE *yuv_rec_file;
     81 #endif
     82 
     83 #if 0
     84 FILE *framepsnr;
     85 FILE *kf_list;
     86 FILE *keyfile;
     87 #endif
     88 
     89 static INLINE void Scale2Ratio(VPX_SCALING mode, int *hr, int *hs) {
     90   switch (mode) {
     91     case NORMAL:
     92       *hr = 1;
     93       *hs = 1;
     94       break;
     95     case FOURFIVE:
     96       *hr = 4;
     97       *hs = 5;
     98       break;
     99     case THREEFIVE:
    100       *hr = 3;
    101       *hs = 5;
    102     break;
    103     case ONETWO:
    104       *hr = 1;
    105       *hs = 2;
    106     break;
    107     default:
    108       *hr = 1;
    109       *hs = 1;
    110        assert(0);
    111       break;
    112   }
    113 }
    114 
    115 // Mark all inactive blocks as active. Other segmentation features may be set
    116 // so memset cannot be used, instead only inactive blocks should be reset.
    117 static void suppress_active_map(VP9_COMP *cpi) {
    118   unsigned char *const seg_map = cpi->segmentation_map;
    119   int i;
    120   if (cpi->active_map.enabled || cpi->active_map.update)
    121     for (i = 0; i < cpi->common.mi_rows * cpi->common.mi_cols; ++i)
    122       if (seg_map[i] == AM_SEGMENT_ID_INACTIVE)
    123         seg_map[i] = AM_SEGMENT_ID_ACTIVE;
    124 }
    125 
    126 static void apply_active_map(VP9_COMP *cpi) {
    127   struct segmentation *const seg = &cpi->common.seg;
    128   unsigned char *const seg_map = cpi->segmentation_map;
    129   const unsigned char *const active_map = cpi->active_map.map;
    130   int i;
    131 
    132   assert(AM_SEGMENT_ID_ACTIVE == CR_SEGMENT_ID_BASE);
    133 
    134   if (frame_is_intra_only(&cpi->common)) {
    135     cpi->active_map.enabled = 0;
    136     cpi->active_map.update = 1;
    137   }
    138 
    139   if (cpi->active_map.update) {
    140     if (cpi->active_map.enabled) {
    141       for (i = 0; i < cpi->common.mi_rows * cpi->common.mi_cols; ++i)
    142         if (seg_map[i] == AM_SEGMENT_ID_ACTIVE) seg_map[i] = active_map[i];
    143       vp9_enable_segmentation(seg);
    144       vp9_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_SKIP);
    145       vp9_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF);
    146       // Setting the data to -MAX_LOOP_FILTER will result in the computed loop
    147       // filter level being zero regardless of the value of seg->abs_delta.
    148       vp9_set_segdata(seg, AM_SEGMENT_ID_INACTIVE,
    149                       SEG_LVL_ALT_LF, -MAX_LOOP_FILTER);
    150     } else {
    151       vp9_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_SKIP);
    152       vp9_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF);
    153       if (seg->enabled) {
    154         seg->update_data = 1;
    155         seg->update_map = 1;
    156       }
    157     }
    158     cpi->active_map.update = 0;
    159   }
    160 }
    161 
    162 int vp9_set_active_map(VP9_COMP* cpi,
    163                        unsigned char* new_map_16x16,
    164                        int rows,
    165                        int cols) {
    166   if (rows == cpi->common.mb_rows && cols == cpi->common.mb_cols) {
    167     unsigned char *const active_map_8x8 = cpi->active_map.map;
    168     const int mi_rows = cpi->common.mi_rows;
    169     const int mi_cols = cpi->common.mi_cols;
    170     cpi->active_map.update = 1;
    171     if (new_map_16x16) {
    172       int r, c;
    173       for (r = 0; r < mi_rows; ++r) {
    174         for (c = 0; c < mi_cols; ++c) {
    175           active_map_8x8[r * mi_cols + c] =
    176               new_map_16x16[(r >> 1) * cols + (c >> 1)]
    177                   ? AM_SEGMENT_ID_ACTIVE
    178                   : AM_SEGMENT_ID_INACTIVE;
    179         }
    180       }
    181       cpi->active_map.enabled = 1;
    182     } else {
    183       cpi->active_map.enabled = 0;
    184     }
    185     return 0;
    186   } else {
    187     return -1;
    188   }
    189 }
    190 
    191 int vp9_get_active_map(VP9_COMP* cpi,
    192                        unsigned char* new_map_16x16,
    193                        int rows,
    194                        int cols) {
    195   if (rows == cpi->common.mb_rows && cols == cpi->common.mb_cols &&
    196       new_map_16x16) {
    197     unsigned char* const seg_map_8x8 = cpi->segmentation_map;
    198     const int mi_rows = cpi->common.mi_rows;
    199     const int mi_cols = cpi->common.mi_cols;
    200     memset(new_map_16x16, !cpi->active_map.enabled, rows * cols);
    201     if (cpi->active_map.enabled) {
    202       int r, c;
    203       for (r = 0; r < mi_rows; ++r) {
    204         for (c = 0; c < mi_cols; ++c) {
    205           // Cyclic refresh segments are considered active despite not having
    206           // AM_SEGMENT_ID_ACTIVE
    207           new_map_16x16[(r >> 1) * cols + (c >> 1)] |=
    208               seg_map_8x8[r * mi_cols + c] != AM_SEGMENT_ID_INACTIVE;
    209         }
    210       }
    211     }
    212     return 0;
    213   } else {
    214     return -1;
    215   }
    216 }
    217 
    218 void vp9_set_high_precision_mv(VP9_COMP *cpi, int allow_high_precision_mv) {
    219   MACROBLOCK *const mb = &cpi->td.mb;
    220   cpi->common.allow_high_precision_mv = allow_high_precision_mv;
    221   if (cpi->common.allow_high_precision_mv) {
    222     mb->mvcost = mb->nmvcost_hp;
    223     mb->mvsadcost = mb->nmvsadcost_hp;
    224   } else {
    225     mb->mvcost = mb->nmvcost;
    226     mb->mvsadcost = mb->nmvsadcost;
    227   }
    228 }
    229 
    230 static void setup_frame(VP9_COMP *cpi) {
    231   VP9_COMMON *const cm = &cpi->common;
    232   // Set up entropy context depending on frame type. The decoder mandates
    233   // the use of the default context, index 0, for keyframes and inter
    234   // frames where the error_resilient_mode or intra_only flag is set. For
    235   // other inter-frames the encoder currently uses only two contexts;
    236   // context 1 for ALTREF frames and context 0 for the others.
    237   if (frame_is_intra_only(cm) || cm->error_resilient_mode) {
    238     vp9_setup_past_independence(cm);
    239   } else {
    240     if (!cpi->use_svc)
    241       cm->frame_context_idx = cpi->refresh_alt_ref_frame;
    242   }
    243 
    244   if (cm->frame_type == KEY_FRAME) {
    245     if (!is_two_pass_svc(cpi))
    246       cpi->refresh_golden_frame = 1;
    247     cpi->refresh_alt_ref_frame = 1;
    248     vp9_zero(cpi->interp_filter_selected);
    249   } else {
    250     *cm->fc = cm->frame_contexts[cm->frame_context_idx];
    251     vp9_zero(cpi->interp_filter_selected[0]);
    252   }
    253 }
    254 
    255 static void vp9_enc_setup_mi(VP9_COMMON *cm) {
    256   int i;
    257   cm->mi = cm->mip + cm->mi_stride + 1;
    258   memset(cm->mip, 0, cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->mip));
    259   cm->prev_mi = cm->prev_mip + cm->mi_stride + 1;
    260   // Clear top border row
    261   memset(cm->prev_mip, 0, sizeof(*cm->prev_mip) * cm->mi_stride);
    262   // Clear left border column
    263   for (i = 1; i < cm->mi_rows + 1; ++i)
    264     memset(&cm->prev_mip[i * cm->mi_stride], 0, sizeof(*cm->prev_mip));
    265 
    266   cm->mi_grid_visible = cm->mi_grid_base + cm->mi_stride + 1;
    267   cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mi_stride + 1;
    268 
    269   memset(cm->mi_grid_base, 0,
    270          cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->mi_grid_base));
    271 }
    272 
    273 static int vp9_enc_alloc_mi(VP9_COMMON *cm, int mi_size) {
    274   cm->mip = vpx_calloc(mi_size, sizeof(*cm->mip));
    275   if (!cm->mip)
    276     return 1;
    277   cm->prev_mip = vpx_calloc(mi_size, sizeof(*cm->prev_mip));
    278   if (!cm->prev_mip)
    279     return 1;
    280   cm->mi_alloc_size = mi_size;
    281 
    282   cm->mi_grid_base = (MODE_INFO **)vpx_calloc(mi_size, sizeof(MODE_INFO*));
    283   if (!cm->mi_grid_base)
    284     return 1;
    285   cm->prev_mi_grid_base = (MODE_INFO **)vpx_calloc(mi_size, sizeof(MODE_INFO*));
    286   if (!cm->prev_mi_grid_base)
    287     return 1;
    288 
    289   return 0;
    290 }
    291 
    292 static void vp9_enc_free_mi(VP9_COMMON *cm) {
    293   vpx_free(cm->mip);
    294   cm->mip = NULL;
    295   vpx_free(cm->prev_mip);
    296   cm->prev_mip = NULL;
    297   vpx_free(cm->mi_grid_base);
    298   cm->mi_grid_base = NULL;
    299   vpx_free(cm->prev_mi_grid_base);
    300   cm->prev_mi_grid_base = NULL;
    301 }
    302 
    303 static void vp9_swap_mi_and_prev_mi(VP9_COMMON *cm) {
    304   // Current mip will be the prev_mip for the next frame.
    305   MODE_INFO **temp_base = cm->prev_mi_grid_base;
    306   MODE_INFO *temp = cm->prev_mip;
    307   cm->prev_mip = cm->mip;
    308   cm->mip = temp;
    309 
    310   // Update the upper left visible macroblock ptrs.
    311   cm->mi = cm->mip + cm->mi_stride + 1;
    312   cm->prev_mi = cm->prev_mip + cm->mi_stride + 1;
    313 
    314   cm->prev_mi_grid_base = cm->mi_grid_base;
    315   cm->mi_grid_base = temp_base;
    316   cm->mi_grid_visible = cm->mi_grid_base + cm->mi_stride + 1;
    317   cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mi_stride + 1;
    318 }
    319 
    320 void vp9_initialize_enc(void) {
    321   static volatile int init_done = 0;
    322 
    323   if (!init_done) {
    324     vp9_rtcd();
    325     vpx_dsp_rtcd();
    326     vpx_scale_rtcd();
    327     vp9_init_intra_predictors();
    328     vp9_init_me_luts();
    329     vp9_rc_init_minq_luts();
    330     vp9_entropy_mv_init();
    331     vp9_temporal_filter_init();
    332     init_done = 1;
    333   }
    334 }
    335 
    336 static void dealloc_compressor_data(VP9_COMP *cpi) {
    337   VP9_COMMON *const cm = &cpi->common;
    338   int i;
    339 
    340   vpx_free(cpi->mbmi_ext_base);
    341   cpi->mbmi_ext_base = NULL;
    342 
    343   vpx_free(cpi->tile_data);
    344   cpi->tile_data = NULL;
    345 
    346   // Delete sementation map
    347   vpx_free(cpi->segmentation_map);
    348   cpi->segmentation_map = NULL;
    349   vpx_free(cpi->coding_context.last_frame_seg_map_copy);
    350   cpi->coding_context.last_frame_seg_map_copy = NULL;
    351 
    352   vpx_free(cpi->nmvcosts[0]);
    353   vpx_free(cpi->nmvcosts[1]);
    354   cpi->nmvcosts[0] = NULL;
    355   cpi->nmvcosts[1] = NULL;
    356 
    357   vpx_free(cpi->nmvcosts_hp[0]);
    358   vpx_free(cpi->nmvcosts_hp[1]);
    359   cpi->nmvcosts_hp[0] = NULL;
    360   cpi->nmvcosts_hp[1] = NULL;
    361 
    362   vpx_free(cpi->nmvsadcosts[0]);
    363   vpx_free(cpi->nmvsadcosts[1]);
    364   cpi->nmvsadcosts[0] = NULL;
    365   cpi->nmvsadcosts[1] = NULL;
    366 
    367   vpx_free(cpi->nmvsadcosts_hp[0]);
    368   vpx_free(cpi->nmvsadcosts_hp[1]);
    369   cpi->nmvsadcosts_hp[0] = NULL;
    370   cpi->nmvsadcosts_hp[1] = NULL;
    371 
    372   vp9_cyclic_refresh_free(cpi->cyclic_refresh);
    373   cpi->cyclic_refresh = NULL;
    374 
    375   vpx_free(cpi->active_map.map);
    376   cpi->active_map.map = NULL;
    377 
    378   vp9_free_ref_frame_buffers(cm->buffer_pool);
    379 #if CONFIG_VP9_POSTPROC
    380   vp9_free_postproc_buffers(cm);
    381 #endif
    382   vp9_free_context_buffers(cm);
    383 
    384   vpx_free_frame_buffer(&cpi->last_frame_uf);
    385   vpx_free_frame_buffer(&cpi->scaled_source);
    386   vpx_free_frame_buffer(&cpi->scaled_last_source);
    387   vpx_free_frame_buffer(&cpi->alt_ref_buffer);
    388   vp9_lookahead_destroy(cpi->lookahead);
    389 
    390   vpx_free(cpi->tile_tok[0][0]);
    391   cpi->tile_tok[0][0] = 0;
    392 
    393   vp9_free_pc_tree(&cpi->td);
    394 
    395   for (i = 0; i < cpi->svc.number_spatial_layers; ++i) {
    396     LAYER_CONTEXT *const lc = &cpi->svc.layer_context[i];
    397     vpx_free(lc->rc_twopass_stats_in.buf);
    398     lc->rc_twopass_stats_in.buf = NULL;
    399     lc->rc_twopass_stats_in.sz = 0;
    400   }
    401 
    402   if (cpi->source_diff_var != NULL) {
    403     vpx_free(cpi->source_diff_var);
    404     cpi->source_diff_var = NULL;
    405   }
    406 
    407   for (i = 0; i < MAX_LAG_BUFFERS; ++i) {
    408     vpx_free_frame_buffer(&cpi->svc.scaled_frames[i]);
    409   }
    410   memset(&cpi->svc.scaled_frames[0], 0,
    411          MAX_LAG_BUFFERS * sizeof(cpi->svc.scaled_frames[0]));
    412 
    413   vpx_free_frame_buffer(&cpi->svc.empty_frame.img);
    414   memset(&cpi->svc.empty_frame, 0, sizeof(cpi->svc.empty_frame));
    415 
    416   vp9_free_svc_cyclic_refresh(cpi);
    417 }
    418 
    419 static void save_coding_context(VP9_COMP *cpi) {
    420   CODING_CONTEXT *const cc = &cpi->coding_context;
    421   VP9_COMMON *cm = &cpi->common;
    422 
    423   // Stores a snapshot of key state variables which can subsequently be
    424   // restored with a call to vp9_restore_coding_context. These functions are
    425   // intended for use in a re-code loop in vp9_compress_frame where the
    426   // quantizer value is adjusted between loop iterations.
    427   vp9_copy(cc->nmvjointcost,  cpi->td.mb.nmvjointcost);
    428 
    429   memcpy(cc->nmvcosts[0], cpi->nmvcosts[0],
    430          MV_VALS * sizeof(*cpi->nmvcosts[0]));
    431   memcpy(cc->nmvcosts[1], cpi->nmvcosts[1],
    432          MV_VALS * sizeof(*cpi->nmvcosts[1]));
    433   memcpy(cc->nmvcosts_hp[0], cpi->nmvcosts_hp[0],
    434          MV_VALS * sizeof(*cpi->nmvcosts_hp[0]));
    435   memcpy(cc->nmvcosts_hp[1], cpi->nmvcosts_hp[1],
    436          MV_VALS * sizeof(*cpi->nmvcosts_hp[1]));
    437 
    438   vp9_copy(cc->segment_pred_probs, cm->seg.pred_probs);
    439 
    440   memcpy(cpi->coding_context.last_frame_seg_map_copy,
    441          cm->last_frame_seg_map, (cm->mi_rows * cm->mi_cols));
    442 
    443   vp9_copy(cc->last_ref_lf_deltas, cm->lf.last_ref_deltas);
    444   vp9_copy(cc->last_mode_lf_deltas, cm->lf.last_mode_deltas);
    445 
    446   cc->fc = *cm->fc;
    447 }
    448 
    449 static void restore_coding_context(VP9_COMP *cpi) {
    450   CODING_CONTEXT *const cc = &cpi->coding_context;
    451   VP9_COMMON *cm = &cpi->common;
    452 
    453   // Restore key state variables to the snapshot state stored in the
    454   // previous call to vp9_save_coding_context.
    455   vp9_copy(cpi->td.mb.nmvjointcost, cc->nmvjointcost);
    456 
    457   memcpy(cpi->nmvcosts[0], cc->nmvcosts[0], MV_VALS * sizeof(*cc->nmvcosts[0]));
    458   memcpy(cpi->nmvcosts[1], cc->nmvcosts[1], MV_VALS * sizeof(*cc->nmvcosts[1]));
    459   memcpy(cpi->nmvcosts_hp[0], cc->nmvcosts_hp[0],
    460          MV_VALS * sizeof(*cc->nmvcosts_hp[0]));
    461   memcpy(cpi->nmvcosts_hp[1], cc->nmvcosts_hp[1],
    462          MV_VALS * sizeof(*cc->nmvcosts_hp[1]));
    463 
    464   vp9_copy(cm->seg.pred_probs, cc->segment_pred_probs);
    465 
    466   memcpy(cm->last_frame_seg_map,
    467          cpi->coding_context.last_frame_seg_map_copy,
    468          (cm->mi_rows * cm->mi_cols));
    469 
    470   vp9_copy(cm->lf.last_ref_deltas, cc->last_ref_lf_deltas);
    471   vp9_copy(cm->lf.last_mode_deltas, cc->last_mode_lf_deltas);
    472 
    473   *cm->fc = cc->fc;
    474 }
    475 
    476 static void configure_static_seg_features(VP9_COMP *cpi) {
    477   VP9_COMMON *const cm = &cpi->common;
    478   const RATE_CONTROL *const rc = &cpi->rc;
    479   struct segmentation *const seg = &cm->seg;
    480 
    481   int high_q = (int)(rc->avg_q > 48.0);
    482   int qi_delta;
    483 
    484   // Disable and clear down for KF
    485   if (cm->frame_type == KEY_FRAME) {
    486     // Clear down the global segmentation map
    487     memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
    488     seg->update_map = 0;
    489     seg->update_data = 0;
    490     cpi->static_mb_pct = 0;
    491 
    492     // Disable segmentation
    493     vp9_disable_segmentation(seg);
    494 
    495     // Clear down the segment features.
    496     vp9_clearall_segfeatures(seg);
    497   } else if (cpi->refresh_alt_ref_frame) {
    498     // If this is an alt ref frame
    499     // Clear down the global segmentation map
    500     memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
    501     seg->update_map = 0;
    502     seg->update_data = 0;
    503     cpi->static_mb_pct = 0;
    504 
    505     // Disable segmentation and individual segment features by default
    506     vp9_disable_segmentation(seg);
    507     vp9_clearall_segfeatures(seg);
    508 
    509     // Scan frames from current to arf frame.
    510     // This function re-enables segmentation if appropriate.
    511     vp9_update_mbgraph_stats(cpi);
    512 
    513     // If segmentation was enabled set those features needed for the
    514     // arf itself.
    515     if (seg->enabled) {
    516       seg->update_map = 1;
    517       seg->update_data = 1;
    518 
    519       qi_delta = vp9_compute_qdelta(rc, rc->avg_q, rc->avg_q * 0.875,
    520                                     cm->bit_depth);
    521       vp9_set_segdata(seg, 1, SEG_LVL_ALT_Q, qi_delta - 2);
    522       vp9_set_segdata(seg, 1, SEG_LVL_ALT_LF, -2);
    523 
    524       vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
    525       vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_LF);
    526 
    527       // Where relevant assume segment data is delta data
    528       seg->abs_delta = SEGMENT_DELTADATA;
    529     }
    530   } else if (seg->enabled) {
    531     // All other frames if segmentation has been enabled
    532 
    533     // First normal frame in a valid gf or alt ref group
    534     if (rc->frames_since_golden == 0) {
    535       // Set up segment features for normal frames in an arf group
    536       if (rc->source_alt_ref_active) {
    537         seg->update_map = 0;
    538         seg->update_data = 1;
    539         seg->abs_delta = SEGMENT_DELTADATA;
    540 
    541         qi_delta = vp9_compute_qdelta(rc, rc->avg_q, rc->avg_q * 1.125,
    542                                       cm->bit_depth);
    543         vp9_set_segdata(seg, 1, SEG_LVL_ALT_Q, qi_delta + 2);
    544         vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
    545 
    546         vp9_set_segdata(seg, 1, SEG_LVL_ALT_LF, -2);
    547         vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_LF);
    548 
    549         // Segment coding disabled for compred testing
    550         if (high_q || (cpi->static_mb_pct == 100)) {
    551           vp9_set_segdata(seg, 1, SEG_LVL_REF_FRAME, ALTREF_FRAME);
    552           vp9_enable_segfeature(seg, 1, SEG_LVL_REF_FRAME);
    553           vp9_enable_segfeature(seg, 1, SEG_LVL_SKIP);
    554         }
    555       } else {
    556         // Disable segmentation and clear down features if alt ref
    557         // is not active for this group
    558 
    559         vp9_disable_segmentation(seg);
    560 
    561         memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
    562 
    563         seg->update_map = 0;
    564         seg->update_data = 0;
    565 
    566         vp9_clearall_segfeatures(seg);
    567       }
    568     } else if (rc->is_src_frame_alt_ref) {
    569       // Special case where we are coding over the top of a previous
    570       // alt ref frame.
    571       // Segment coding disabled for compred testing
    572 
    573       // Enable ref frame features for segment 0 as well
    574       vp9_enable_segfeature(seg, 0, SEG_LVL_REF_FRAME);
    575       vp9_enable_segfeature(seg, 1, SEG_LVL_REF_FRAME);
    576 
    577       // All mbs should use ALTREF_FRAME
    578       vp9_clear_segdata(seg, 0, SEG_LVL_REF_FRAME);
    579       vp9_set_segdata(seg, 0, SEG_LVL_REF_FRAME, ALTREF_FRAME);
    580       vp9_clear_segdata(seg, 1, SEG_LVL_REF_FRAME);
    581       vp9_set_segdata(seg, 1, SEG_LVL_REF_FRAME, ALTREF_FRAME);
    582 
    583       // Skip all MBs if high Q (0,0 mv and skip coeffs)
    584       if (high_q) {
    585         vp9_enable_segfeature(seg, 0, SEG_LVL_SKIP);
    586         vp9_enable_segfeature(seg, 1, SEG_LVL_SKIP);
    587       }
    588       // Enable data update
    589       seg->update_data = 1;
    590     } else {
    591       // All other frames.
    592 
    593       // No updates.. leave things as they are.
    594       seg->update_map = 0;
    595       seg->update_data = 0;
    596     }
    597   }
    598 }
    599 
    600 static void update_reference_segmentation_map(VP9_COMP *cpi) {
    601   VP9_COMMON *const cm = &cpi->common;
    602   MODE_INFO **mi_8x8_ptr = cm->mi_grid_visible;
    603   uint8_t *cache_ptr = cm->last_frame_seg_map;
    604   int row, col;
    605 
    606   for (row = 0; row < cm->mi_rows; row++) {
    607     MODE_INFO **mi_8x8 = mi_8x8_ptr;
    608     uint8_t *cache = cache_ptr;
    609     for (col = 0; col < cm->mi_cols; col++, mi_8x8++, cache++)
    610       cache[0] = mi_8x8[0]->mbmi.segment_id;
    611     mi_8x8_ptr += cm->mi_stride;
    612     cache_ptr += cm->mi_cols;
    613   }
    614 }
    615 
    616 static void alloc_raw_frame_buffers(VP9_COMP *cpi) {
    617   VP9_COMMON *cm = &cpi->common;
    618   const VP9EncoderConfig *oxcf = &cpi->oxcf;
    619 
    620   if (!cpi->lookahead)
    621     cpi->lookahead = vp9_lookahead_init(oxcf->width, oxcf->height,
    622                                         cm->subsampling_x, cm->subsampling_y,
    623 #if CONFIG_VP9_HIGHBITDEPTH
    624                                       cm->use_highbitdepth,
    625 #endif
    626                                       oxcf->lag_in_frames);
    627   if (!cpi->lookahead)
    628     vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
    629                        "Failed to allocate lag buffers");
    630 
    631   // TODO(agrange) Check if ARF is enabled and skip allocation if not.
    632   if (vpx_realloc_frame_buffer(&cpi->alt_ref_buffer,
    633                                oxcf->width, oxcf->height,
    634                                cm->subsampling_x, cm->subsampling_y,
    635 #if CONFIG_VP9_HIGHBITDEPTH
    636                                cm->use_highbitdepth,
    637 #endif
    638                                VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
    639                                NULL, NULL, NULL))
    640     vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
    641                        "Failed to allocate altref buffer");
    642 }
    643 
    644 static void alloc_util_frame_buffers(VP9_COMP *cpi) {
    645   VP9_COMMON *const cm = &cpi->common;
    646   if (vpx_realloc_frame_buffer(&cpi->last_frame_uf,
    647                                cm->width, cm->height,
    648                                cm->subsampling_x, cm->subsampling_y,
    649 #if CONFIG_VP9_HIGHBITDEPTH
    650                                cm->use_highbitdepth,
    651 #endif
    652                                VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
    653                                NULL, NULL, NULL))
    654     vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
    655                        "Failed to allocate last frame buffer");
    656 
    657   if (vpx_realloc_frame_buffer(&cpi->scaled_source,
    658                                cm->width, cm->height,
    659                                cm->subsampling_x, cm->subsampling_y,
    660 #if CONFIG_VP9_HIGHBITDEPTH
    661                                cm->use_highbitdepth,
    662 #endif
    663                                VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
    664                                NULL, NULL, NULL))
    665     vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
    666                        "Failed to allocate scaled source buffer");
    667 
    668   if (vpx_realloc_frame_buffer(&cpi->scaled_last_source,
    669                                cm->width, cm->height,
    670                                cm->subsampling_x, cm->subsampling_y,
    671 #if CONFIG_VP9_HIGHBITDEPTH
    672                                cm->use_highbitdepth,
    673 #endif
    674                                VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
    675                                NULL, NULL, NULL))
    676     vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
    677                        "Failed to allocate scaled last source buffer");
    678 }
    679 
    680 
    681 static int alloc_context_buffers_ext(VP9_COMP *cpi) {
    682   VP9_COMMON *cm = &cpi->common;
    683   int mi_size = cm->mi_cols * cm->mi_rows;
    684 
    685   cpi->mbmi_ext_base = vpx_calloc(mi_size, sizeof(*cpi->mbmi_ext_base));
    686   if (!cpi->mbmi_ext_base)
    687     return 1;
    688 
    689   return 0;
    690 }
    691 
    692 static void alloc_compressor_data(VP9_COMP *cpi) {
    693   VP9_COMMON *cm = &cpi->common;
    694 
    695   vp9_alloc_context_buffers(cm, cm->width, cm->height);
    696 
    697   alloc_context_buffers_ext(cpi);
    698 
    699   vpx_free(cpi->tile_tok[0][0]);
    700 
    701   {
    702     unsigned int tokens = get_token_alloc(cm->mb_rows, cm->mb_cols);
    703     CHECK_MEM_ERROR(cm, cpi->tile_tok[0][0],
    704         vpx_calloc(tokens, sizeof(*cpi->tile_tok[0][0])));
    705   }
    706 
    707   vp9_setup_pc_tree(&cpi->common, &cpi->td);
    708 }
    709 
    710 void vp9_new_framerate(VP9_COMP *cpi, double framerate) {
    711   cpi->framerate = framerate < 0.1 ? 30 : framerate;
    712   vp9_rc_update_framerate(cpi);
    713 }
    714 
    715 static void set_tile_limits(VP9_COMP *cpi) {
    716   VP9_COMMON *const cm = &cpi->common;
    717 
    718   int min_log2_tile_cols, max_log2_tile_cols;
    719   vp9_get_tile_n_bits(cm->mi_cols, &min_log2_tile_cols, &max_log2_tile_cols);
    720 
    721   if (is_two_pass_svc(cpi) &&
    722       (cpi->svc.encode_empty_frame_state == ENCODING ||
    723       cpi->svc.number_spatial_layers > 1)) {
    724     cm->log2_tile_cols = 0;
    725     cm->log2_tile_rows = 0;
    726   } else {
    727     cm->log2_tile_cols = clamp(cpi->oxcf.tile_columns,
    728                                min_log2_tile_cols, max_log2_tile_cols);
    729     cm->log2_tile_rows = cpi->oxcf.tile_rows;
    730   }
    731 }
    732 
    733 static void update_frame_size(VP9_COMP *cpi) {
    734   VP9_COMMON *const cm = &cpi->common;
    735   MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
    736 
    737   vp9_set_mb_mi(cm, cm->width, cm->height);
    738   vp9_init_context_buffers(cm);
    739   vp9_init_macroblockd(cm, xd, NULL);
    740   cpi->td.mb.mbmi_ext_base = cpi->mbmi_ext_base;
    741   memset(cpi->mbmi_ext_base, 0,
    742          cm->mi_rows * cm->mi_cols * sizeof(*cpi->mbmi_ext_base));
    743 
    744   set_tile_limits(cpi);
    745 
    746   if (is_two_pass_svc(cpi)) {
    747     if (vpx_realloc_frame_buffer(&cpi->alt_ref_buffer,
    748                                  cm->width, cm->height,
    749                                  cm->subsampling_x, cm->subsampling_y,
    750 #if CONFIG_VP9_HIGHBITDEPTH
    751                                  cm->use_highbitdepth,
    752 #endif
    753                                  VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
    754                                  NULL, NULL, NULL))
    755       vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
    756                          "Failed to reallocate alt_ref_buffer");
    757   }
    758 }
    759 
    760 static void init_buffer_indices(VP9_COMP *cpi) {
    761   cpi->lst_fb_idx = 0;
    762   cpi->gld_fb_idx = 1;
    763   cpi->alt_fb_idx = 2;
    764 }
    765 
    766 static void init_config(struct VP9_COMP *cpi, VP9EncoderConfig *oxcf) {
    767   VP9_COMMON *const cm = &cpi->common;
    768 
    769   cpi->oxcf = *oxcf;
    770   cpi->framerate = oxcf->init_framerate;
    771 
    772   cm->profile = oxcf->profile;
    773   cm->bit_depth = oxcf->bit_depth;
    774 #if CONFIG_VP9_HIGHBITDEPTH
    775   cm->use_highbitdepth = oxcf->use_highbitdepth;
    776 #endif
    777   cm->color_space = oxcf->color_space;
    778   cm->color_range = oxcf->color_range;
    779 
    780   cm->width = oxcf->width;
    781   cm->height = oxcf->height;
    782   alloc_compressor_data(cpi);
    783 
    784   cpi->svc.temporal_layering_mode = oxcf->temporal_layering_mode;
    785 
    786   // Single thread case: use counts in common.
    787   cpi->td.counts = &cm->counts;
    788 
    789   // Spatial scalability.
    790   cpi->svc.number_spatial_layers = oxcf->ss_number_layers;
    791   // Temporal scalability.
    792   cpi->svc.number_temporal_layers = oxcf->ts_number_layers;
    793 
    794   if ((cpi->svc.number_temporal_layers > 1 && cpi->oxcf.rc_mode == VPX_CBR) ||
    795       ((cpi->svc.number_temporal_layers > 1 ||
    796         cpi->svc.number_spatial_layers > 1) &&
    797        cpi->oxcf.pass != 1)) {
    798     vp9_init_layer_context(cpi);
    799   }
    800 
    801   // change includes all joint functionality
    802   vp9_change_config(cpi, oxcf);
    803 
    804   cpi->static_mb_pct = 0;
    805   cpi->ref_frame_flags = 0;
    806 
    807   init_buffer_indices(cpi);
    808 }
    809 
    810 static void set_rc_buffer_sizes(RATE_CONTROL *rc,
    811                                 const VP9EncoderConfig *oxcf) {
    812   const int64_t bandwidth = oxcf->target_bandwidth;
    813   const int64_t starting = oxcf->starting_buffer_level_ms;
    814   const int64_t optimal = oxcf->optimal_buffer_level_ms;
    815   const int64_t maximum = oxcf->maximum_buffer_size_ms;
    816 
    817   rc->starting_buffer_level = starting * bandwidth / 1000;
    818   rc->optimal_buffer_level = (optimal == 0) ? bandwidth / 8
    819                                             : optimal * bandwidth / 1000;
    820   rc->maximum_buffer_size = (maximum == 0) ? bandwidth / 8
    821                                            : maximum * bandwidth / 1000;
    822 }
    823 
    824 #if CONFIG_VP9_HIGHBITDEPTH
    825 #define HIGHBD_BFP(BT, SDF, SDAF, VF, SVF, SVAF, SDX3F, SDX8F, SDX4DF) \
    826     cpi->fn_ptr[BT].sdf = SDF; \
    827     cpi->fn_ptr[BT].sdaf = SDAF; \
    828     cpi->fn_ptr[BT].vf = VF; \
    829     cpi->fn_ptr[BT].svf = SVF; \
    830     cpi->fn_ptr[BT].svaf = SVAF; \
    831     cpi->fn_ptr[BT].sdx3f = SDX3F; \
    832     cpi->fn_ptr[BT].sdx8f = SDX8F; \
    833     cpi->fn_ptr[BT].sdx4df = SDX4DF;
    834 
    835 #define MAKE_BFP_SAD_WRAPPER(fnname) \
    836 static unsigned int fnname##_bits8(const uint8_t *src_ptr, \
    837                                    int source_stride, \
    838                                    const uint8_t *ref_ptr, \
    839                                    int ref_stride) {  \
    840   return fnname(src_ptr, source_stride, ref_ptr, ref_stride); \
    841 } \
    842 static unsigned int fnname##_bits10(const uint8_t *src_ptr, \
    843                                     int source_stride, \
    844                                     const uint8_t *ref_ptr, \
    845                                     int ref_stride) {  \
    846   return fnname(src_ptr, source_stride, ref_ptr, ref_stride) >> 2; \
    847 } \
    848 static unsigned int fnname##_bits12(const uint8_t *src_ptr, \
    849                                     int source_stride, \
    850                                     const uint8_t *ref_ptr, \
    851                                     int ref_stride) {  \
    852   return fnname(src_ptr, source_stride, ref_ptr, ref_stride) >> 4; \
    853 }
    854 
    855 #define MAKE_BFP_SADAVG_WRAPPER(fnname) static unsigned int \
    856 fnname##_bits8(const uint8_t *src_ptr, \
    857                int source_stride, \
    858                const uint8_t *ref_ptr, \
    859                int ref_stride, \
    860                const uint8_t *second_pred) {  \
    861   return fnname(src_ptr, source_stride, ref_ptr, ref_stride, second_pred); \
    862 } \
    863 static unsigned int fnname##_bits10(const uint8_t *src_ptr, \
    864                                     int source_stride, \
    865                                     const uint8_t *ref_ptr, \
    866                                     int ref_stride, \
    867                                     const uint8_t *second_pred) {  \
    868   return fnname(src_ptr, source_stride, ref_ptr, ref_stride, \
    869                 second_pred) >> 2; \
    870 } \
    871 static unsigned int fnname##_bits12(const uint8_t *src_ptr, \
    872                                     int source_stride, \
    873                                     const uint8_t *ref_ptr, \
    874                                     int ref_stride, \
    875                                     const uint8_t *second_pred) {  \
    876   return fnname(src_ptr, source_stride, ref_ptr, ref_stride, \
    877                 second_pred) >> 4; \
    878 }
    879 
    880 #define MAKE_BFP_SAD3_WRAPPER(fnname) \
    881 static void fnname##_bits8(const uint8_t *src_ptr, \
    882                            int source_stride, \
    883                            const uint8_t *ref_ptr, \
    884                            int  ref_stride, \
    885                            unsigned int *sad_array) {  \
    886   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    887 } \
    888 static void fnname##_bits10(const uint8_t *src_ptr, \
    889                             int source_stride, \
    890                             const uint8_t *ref_ptr, \
    891                             int  ref_stride, \
    892                             unsigned int *sad_array) {  \
    893   int i; \
    894   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    895   for (i = 0; i < 3; i++) \
    896     sad_array[i] >>= 2; \
    897 } \
    898 static void fnname##_bits12(const uint8_t *src_ptr, \
    899                             int source_stride, \
    900                             const uint8_t *ref_ptr, \
    901                             int  ref_stride, \
    902                             unsigned int *sad_array) {  \
    903   int i; \
    904   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    905   for (i = 0; i < 3; i++) \
    906     sad_array[i] >>= 4; \
    907 }
    908 
    909 #define MAKE_BFP_SAD8_WRAPPER(fnname) \
    910 static void fnname##_bits8(const uint8_t *src_ptr, \
    911                            int source_stride, \
    912                            const uint8_t *ref_ptr, \
    913                            int  ref_stride, \
    914                            unsigned int *sad_array) {  \
    915   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    916 } \
    917 static void fnname##_bits10(const uint8_t *src_ptr, \
    918                             int source_stride, \
    919                             const uint8_t *ref_ptr, \
    920                             int  ref_stride, \
    921                             unsigned int *sad_array) {  \
    922   int i; \
    923   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    924   for (i = 0; i < 8; i++) \
    925     sad_array[i] >>= 2; \
    926 } \
    927 static void fnname##_bits12(const uint8_t *src_ptr, \
    928                             int source_stride, \
    929                             const uint8_t *ref_ptr, \
    930                             int  ref_stride, \
    931                             unsigned int *sad_array) {  \
    932   int i; \
    933   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    934   for (i = 0; i < 8; i++) \
    935     sad_array[i] >>= 4; \
    936 }
    937 #define MAKE_BFP_SAD4D_WRAPPER(fnname) \
    938 static void fnname##_bits8(const uint8_t *src_ptr, \
    939                            int source_stride, \
    940                            const uint8_t* const ref_ptr[], \
    941                            int  ref_stride, \
    942                            unsigned int *sad_array) {  \
    943   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    944 } \
    945 static void fnname##_bits10(const uint8_t *src_ptr, \
    946                             int source_stride, \
    947                             const uint8_t* const ref_ptr[], \
    948                             int  ref_stride, \
    949                             unsigned int *sad_array) {  \
    950   int i; \
    951   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    952   for (i = 0; i < 4; i++) \
    953   sad_array[i] >>= 2; \
    954 } \
    955 static void fnname##_bits12(const uint8_t *src_ptr, \
    956                             int source_stride, \
    957                             const uint8_t* const ref_ptr[], \
    958                             int  ref_stride, \
    959                             unsigned int *sad_array) {  \
    960   int i; \
    961   fnname(src_ptr, source_stride, ref_ptr, ref_stride, sad_array); \
    962   for (i = 0; i < 4; i++) \
    963   sad_array[i] >>= 4; \
    964 }
    965 
    966 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad32x16)
    967 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad32x16_avg)
    968 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad32x16x4d)
    969 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad16x32)
    970 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad16x32_avg)
    971 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad16x32x4d)
    972 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad64x32)
    973 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad64x32_avg)
    974 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad64x32x4d)
    975 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad32x64)
    976 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad32x64_avg)
    977 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad32x64x4d)
    978 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad32x32)
    979 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad32x32_avg)
    980 MAKE_BFP_SAD3_WRAPPER(vpx_highbd_sad32x32x3)
    981 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad32x32x8)
    982 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad32x32x4d)
    983 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad64x64)
    984 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad64x64_avg)
    985 MAKE_BFP_SAD3_WRAPPER(vpx_highbd_sad64x64x3)
    986 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad64x64x8)
    987 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad64x64x4d)
    988 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad16x16)
    989 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad16x16_avg)
    990 MAKE_BFP_SAD3_WRAPPER(vpx_highbd_sad16x16x3)
    991 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad16x16x8)
    992 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad16x16x4d)
    993 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad16x8)
    994 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad16x8_avg)
    995 MAKE_BFP_SAD3_WRAPPER(vpx_highbd_sad16x8x3)
    996 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad16x8x8)
    997 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad16x8x4d)
    998 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad8x16)
    999 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad8x16_avg)
   1000 MAKE_BFP_SAD3_WRAPPER(vpx_highbd_sad8x16x3)
   1001 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad8x16x8)
   1002 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad8x16x4d)
   1003 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad8x8)
   1004 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad8x8_avg)
   1005 MAKE_BFP_SAD3_WRAPPER(vpx_highbd_sad8x8x3)
   1006 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad8x8x8)
   1007 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad8x8x4d)
   1008 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad8x4)
   1009 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad8x4_avg)
   1010 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad8x4x8)
   1011 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad8x4x4d)
   1012 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad4x8)
   1013 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad4x8_avg)
   1014 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad4x8x8)
   1015 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad4x8x4d)
   1016 MAKE_BFP_SAD_WRAPPER(vpx_highbd_sad4x4)
   1017 MAKE_BFP_SADAVG_WRAPPER(vpx_highbd_sad4x4_avg)
   1018 MAKE_BFP_SAD3_WRAPPER(vpx_highbd_sad4x4x3)
   1019 MAKE_BFP_SAD8_WRAPPER(vpx_highbd_sad4x4x8)
   1020 MAKE_BFP_SAD4D_WRAPPER(vpx_highbd_sad4x4x4d)
   1021 
   1022 static void  highbd_set_var_fns(VP9_COMP *const cpi) {
   1023   VP9_COMMON *const cm = &cpi->common;
   1024   if (cm->use_highbitdepth) {
   1025     switch (cm->bit_depth) {
   1026       case VPX_BITS_8:
   1027         HIGHBD_BFP(BLOCK_32X16,
   1028                    vpx_highbd_sad32x16_bits8,
   1029                    vpx_highbd_sad32x16_avg_bits8,
   1030                    vpx_highbd_8_variance32x16,
   1031                    vpx_highbd_8_sub_pixel_variance32x16,
   1032                    vpx_highbd_8_sub_pixel_avg_variance32x16,
   1033                    NULL,
   1034                    NULL,
   1035                    vpx_highbd_sad32x16x4d_bits8)
   1036 
   1037         HIGHBD_BFP(BLOCK_16X32,
   1038                    vpx_highbd_sad16x32_bits8,
   1039                    vpx_highbd_sad16x32_avg_bits8,
   1040                    vpx_highbd_8_variance16x32,
   1041                    vpx_highbd_8_sub_pixel_variance16x32,
   1042                    vpx_highbd_8_sub_pixel_avg_variance16x32,
   1043                    NULL,
   1044                    NULL,
   1045                    vpx_highbd_sad16x32x4d_bits8)
   1046 
   1047         HIGHBD_BFP(BLOCK_64X32,
   1048                    vpx_highbd_sad64x32_bits8,
   1049                    vpx_highbd_sad64x32_avg_bits8,
   1050                    vpx_highbd_8_variance64x32,
   1051                    vpx_highbd_8_sub_pixel_variance64x32,
   1052                    vpx_highbd_8_sub_pixel_avg_variance64x32,
   1053                    NULL,
   1054                    NULL,
   1055                    vpx_highbd_sad64x32x4d_bits8)
   1056 
   1057         HIGHBD_BFP(BLOCK_32X64,
   1058                    vpx_highbd_sad32x64_bits8,
   1059                    vpx_highbd_sad32x64_avg_bits8,
   1060                    vpx_highbd_8_variance32x64,
   1061                    vpx_highbd_8_sub_pixel_variance32x64,
   1062                    vpx_highbd_8_sub_pixel_avg_variance32x64,
   1063                    NULL,
   1064                    NULL,
   1065                    vpx_highbd_sad32x64x4d_bits8)
   1066 
   1067         HIGHBD_BFP(BLOCK_32X32,
   1068                    vpx_highbd_sad32x32_bits8,
   1069                    vpx_highbd_sad32x32_avg_bits8,
   1070                    vpx_highbd_8_variance32x32,
   1071                    vpx_highbd_8_sub_pixel_variance32x32,
   1072                    vpx_highbd_8_sub_pixel_avg_variance32x32,
   1073                    vpx_highbd_sad32x32x3_bits8,
   1074                    vpx_highbd_sad32x32x8_bits8,
   1075                    vpx_highbd_sad32x32x4d_bits8)
   1076 
   1077         HIGHBD_BFP(BLOCK_64X64,
   1078                    vpx_highbd_sad64x64_bits8,
   1079                    vpx_highbd_sad64x64_avg_bits8,
   1080                    vpx_highbd_8_variance64x64,
   1081                    vpx_highbd_8_sub_pixel_variance64x64,
   1082                    vpx_highbd_8_sub_pixel_avg_variance64x64,
   1083                    vpx_highbd_sad64x64x3_bits8,
   1084                    vpx_highbd_sad64x64x8_bits8,
   1085                    vpx_highbd_sad64x64x4d_bits8)
   1086 
   1087         HIGHBD_BFP(BLOCK_16X16,
   1088                    vpx_highbd_sad16x16_bits8,
   1089                    vpx_highbd_sad16x16_avg_bits8,
   1090                    vpx_highbd_8_variance16x16,
   1091                    vpx_highbd_8_sub_pixel_variance16x16,
   1092                    vpx_highbd_8_sub_pixel_avg_variance16x16,
   1093                    vpx_highbd_sad16x16x3_bits8,
   1094                    vpx_highbd_sad16x16x8_bits8,
   1095                    vpx_highbd_sad16x16x4d_bits8)
   1096 
   1097         HIGHBD_BFP(BLOCK_16X8,
   1098                    vpx_highbd_sad16x8_bits8,
   1099                    vpx_highbd_sad16x8_avg_bits8,
   1100                    vpx_highbd_8_variance16x8,
   1101                    vpx_highbd_8_sub_pixel_variance16x8,
   1102                    vpx_highbd_8_sub_pixel_avg_variance16x8,
   1103                    vpx_highbd_sad16x8x3_bits8,
   1104                    vpx_highbd_sad16x8x8_bits8,
   1105                    vpx_highbd_sad16x8x4d_bits8)
   1106 
   1107         HIGHBD_BFP(BLOCK_8X16,
   1108                    vpx_highbd_sad8x16_bits8,
   1109                    vpx_highbd_sad8x16_avg_bits8,
   1110                    vpx_highbd_8_variance8x16,
   1111                    vpx_highbd_8_sub_pixel_variance8x16,
   1112                    vpx_highbd_8_sub_pixel_avg_variance8x16,
   1113                    vpx_highbd_sad8x16x3_bits8,
   1114                    vpx_highbd_sad8x16x8_bits8,
   1115                    vpx_highbd_sad8x16x4d_bits8)
   1116 
   1117         HIGHBD_BFP(BLOCK_8X8,
   1118                    vpx_highbd_sad8x8_bits8,
   1119                    vpx_highbd_sad8x8_avg_bits8,
   1120                    vpx_highbd_8_variance8x8,
   1121                    vpx_highbd_8_sub_pixel_variance8x8,
   1122                    vpx_highbd_8_sub_pixel_avg_variance8x8,
   1123                    vpx_highbd_sad8x8x3_bits8,
   1124                    vpx_highbd_sad8x8x8_bits8,
   1125                    vpx_highbd_sad8x8x4d_bits8)
   1126 
   1127         HIGHBD_BFP(BLOCK_8X4,
   1128                    vpx_highbd_sad8x4_bits8,
   1129                    vpx_highbd_sad8x4_avg_bits8,
   1130                    vpx_highbd_8_variance8x4,
   1131                    vpx_highbd_8_sub_pixel_variance8x4,
   1132                    vpx_highbd_8_sub_pixel_avg_variance8x4,
   1133                    NULL,
   1134                    vpx_highbd_sad8x4x8_bits8,
   1135                    vpx_highbd_sad8x4x4d_bits8)
   1136 
   1137         HIGHBD_BFP(BLOCK_4X8,
   1138                    vpx_highbd_sad4x8_bits8,
   1139                    vpx_highbd_sad4x8_avg_bits8,
   1140                    vpx_highbd_8_variance4x8,
   1141                    vpx_highbd_8_sub_pixel_variance4x8,
   1142                    vpx_highbd_8_sub_pixel_avg_variance4x8,
   1143                    NULL,
   1144                    vpx_highbd_sad4x8x8_bits8,
   1145                    vpx_highbd_sad4x8x4d_bits8)
   1146 
   1147         HIGHBD_BFP(BLOCK_4X4,
   1148                    vpx_highbd_sad4x4_bits8,
   1149                    vpx_highbd_sad4x4_avg_bits8,
   1150                    vpx_highbd_8_variance4x4,
   1151                    vpx_highbd_8_sub_pixel_variance4x4,
   1152                    vpx_highbd_8_sub_pixel_avg_variance4x4,
   1153                    vpx_highbd_sad4x4x3_bits8,
   1154                    vpx_highbd_sad4x4x8_bits8,
   1155                    vpx_highbd_sad4x4x4d_bits8)
   1156         break;
   1157 
   1158       case VPX_BITS_10:
   1159         HIGHBD_BFP(BLOCK_32X16,
   1160                    vpx_highbd_sad32x16_bits10,
   1161                    vpx_highbd_sad32x16_avg_bits10,
   1162                    vpx_highbd_10_variance32x16,
   1163                    vpx_highbd_10_sub_pixel_variance32x16,
   1164                    vpx_highbd_10_sub_pixel_avg_variance32x16,
   1165                    NULL,
   1166                    NULL,
   1167                    vpx_highbd_sad32x16x4d_bits10)
   1168 
   1169         HIGHBD_BFP(BLOCK_16X32,
   1170                    vpx_highbd_sad16x32_bits10,
   1171                    vpx_highbd_sad16x32_avg_bits10,
   1172                    vpx_highbd_10_variance16x32,
   1173                    vpx_highbd_10_sub_pixel_variance16x32,
   1174                    vpx_highbd_10_sub_pixel_avg_variance16x32,
   1175                    NULL,
   1176                    NULL,
   1177                    vpx_highbd_sad16x32x4d_bits10)
   1178 
   1179         HIGHBD_BFP(BLOCK_64X32,
   1180                    vpx_highbd_sad64x32_bits10,
   1181                    vpx_highbd_sad64x32_avg_bits10,
   1182                    vpx_highbd_10_variance64x32,
   1183                    vpx_highbd_10_sub_pixel_variance64x32,
   1184                    vpx_highbd_10_sub_pixel_avg_variance64x32,
   1185                    NULL,
   1186                    NULL,
   1187                    vpx_highbd_sad64x32x4d_bits10)
   1188 
   1189         HIGHBD_BFP(BLOCK_32X64,
   1190                    vpx_highbd_sad32x64_bits10,
   1191                    vpx_highbd_sad32x64_avg_bits10,
   1192                    vpx_highbd_10_variance32x64,
   1193                    vpx_highbd_10_sub_pixel_variance32x64,
   1194                    vpx_highbd_10_sub_pixel_avg_variance32x64,
   1195                    NULL,
   1196                    NULL,
   1197                    vpx_highbd_sad32x64x4d_bits10)
   1198 
   1199         HIGHBD_BFP(BLOCK_32X32,
   1200                    vpx_highbd_sad32x32_bits10,
   1201                    vpx_highbd_sad32x32_avg_bits10,
   1202                    vpx_highbd_10_variance32x32,
   1203                    vpx_highbd_10_sub_pixel_variance32x32,
   1204                    vpx_highbd_10_sub_pixel_avg_variance32x32,
   1205                    vpx_highbd_sad32x32x3_bits10,
   1206                    vpx_highbd_sad32x32x8_bits10,
   1207                    vpx_highbd_sad32x32x4d_bits10)
   1208 
   1209         HIGHBD_BFP(BLOCK_64X64,
   1210                    vpx_highbd_sad64x64_bits10,
   1211                    vpx_highbd_sad64x64_avg_bits10,
   1212                    vpx_highbd_10_variance64x64,
   1213                    vpx_highbd_10_sub_pixel_variance64x64,
   1214                    vpx_highbd_10_sub_pixel_avg_variance64x64,
   1215                    vpx_highbd_sad64x64x3_bits10,
   1216                    vpx_highbd_sad64x64x8_bits10,
   1217                    vpx_highbd_sad64x64x4d_bits10)
   1218 
   1219         HIGHBD_BFP(BLOCK_16X16,
   1220                    vpx_highbd_sad16x16_bits10,
   1221                    vpx_highbd_sad16x16_avg_bits10,
   1222                    vpx_highbd_10_variance16x16,
   1223                    vpx_highbd_10_sub_pixel_variance16x16,
   1224                    vpx_highbd_10_sub_pixel_avg_variance16x16,
   1225                    vpx_highbd_sad16x16x3_bits10,
   1226                    vpx_highbd_sad16x16x8_bits10,
   1227                    vpx_highbd_sad16x16x4d_bits10)
   1228 
   1229         HIGHBD_BFP(BLOCK_16X8,
   1230                    vpx_highbd_sad16x8_bits10,
   1231                    vpx_highbd_sad16x8_avg_bits10,
   1232                    vpx_highbd_10_variance16x8,
   1233                    vpx_highbd_10_sub_pixel_variance16x8,
   1234                    vpx_highbd_10_sub_pixel_avg_variance16x8,
   1235                    vpx_highbd_sad16x8x3_bits10,
   1236                    vpx_highbd_sad16x8x8_bits10,
   1237                    vpx_highbd_sad16x8x4d_bits10)
   1238 
   1239         HIGHBD_BFP(BLOCK_8X16,
   1240                    vpx_highbd_sad8x16_bits10,
   1241                    vpx_highbd_sad8x16_avg_bits10,
   1242                    vpx_highbd_10_variance8x16,
   1243                    vpx_highbd_10_sub_pixel_variance8x16,
   1244                    vpx_highbd_10_sub_pixel_avg_variance8x16,
   1245                    vpx_highbd_sad8x16x3_bits10,
   1246                    vpx_highbd_sad8x16x8_bits10,
   1247                    vpx_highbd_sad8x16x4d_bits10)
   1248 
   1249         HIGHBD_BFP(BLOCK_8X8,
   1250                    vpx_highbd_sad8x8_bits10,
   1251                    vpx_highbd_sad8x8_avg_bits10,
   1252                    vpx_highbd_10_variance8x8,
   1253                    vpx_highbd_10_sub_pixel_variance8x8,
   1254                    vpx_highbd_10_sub_pixel_avg_variance8x8,
   1255                    vpx_highbd_sad8x8x3_bits10,
   1256                    vpx_highbd_sad8x8x8_bits10,
   1257                    vpx_highbd_sad8x8x4d_bits10)
   1258 
   1259         HIGHBD_BFP(BLOCK_8X4,
   1260                    vpx_highbd_sad8x4_bits10,
   1261                    vpx_highbd_sad8x4_avg_bits10,
   1262                    vpx_highbd_10_variance8x4,
   1263                    vpx_highbd_10_sub_pixel_variance8x4,
   1264                    vpx_highbd_10_sub_pixel_avg_variance8x4,
   1265                    NULL,
   1266                    vpx_highbd_sad8x4x8_bits10,
   1267                    vpx_highbd_sad8x4x4d_bits10)
   1268 
   1269         HIGHBD_BFP(BLOCK_4X8,
   1270                    vpx_highbd_sad4x8_bits10,
   1271                    vpx_highbd_sad4x8_avg_bits10,
   1272                    vpx_highbd_10_variance4x8,
   1273                    vpx_highbd_10_sub_pixel_variance4x8,
   1274                    vpx_highbd_10_sub_pixel_avg_variance4x8,
   1275                    NULL,
   1276                    vpx_highbd_sad4x8x8_bits10,
   1277                    vpx_highbd_sad4x8x4d_bits10)
   1278 
   1279         HIGHBD_BFP(BLOCK_4X4,
   1280                    vpx_highbd_sad4x4_bits10,
   1281                    vpx_highbd_sad4x4_avg_bits10,
   1282                    vpx_highbd_10_variance4x4,
   1283                    vpx_highbd_10_sub_pixel_variance4x4,
   1284                    vpx_highbd_10_sub_pixel_avg_variance4x4,
   1285                    vpx_highbd_sad4x4x3_bits10,
   1286                    vpx_highbd_sad4x4x8_bits10,
   1287                    vpx_highbd_sad4x4x4d_bits10)
   1288         break;
   1289 
   1290       case VPX_BITS_12:
   1291         HIGHBD_BFP(BLOCK_32X16,
   1292                    vpx_highbd_sad32x16_bits12,
   1293                    vpx_highbd_sad32x16_avg_bits12,
   1294                    vpx_highbd_12_variance32x16,
   1295                    vpx_highbd_12_sub_pixel_variance32x16,
   1296                    vpx_highbd_12_sub_pixel_avg_variance32x16,
   1297                    NULL,
   1298                    NULL,
   1299                    vpx_highbd_sad32x16x4d_bits12)
   1300 
   1301         HIGHBD_BFP(BLOCK_16X32,
   1302                    vpx_highbd_sad16x32_bits12,
   1303                    vpx_highbd_sad16x32_avg_bits12,
   1304                    vpx_highbd_12_variance16x32,
   1305                    vpx_highbd_12_sub_pixel_variance16x32,
   1306                    vpx_highbd_12_sub_pixel_avg_variance16x32,
   1307                    NULL,
   1308                    NULL,
   1309                    vpx_highbd_sad16x32x4d_bits12)
   1310 
   1311         HIGHBD_BFP(BLOCK_64X32,
   1312                    vpx_highbd_sad64x32_bits12,
   1313                    vpx_highbd_sad64x32_avg_bits12,
   1314                    vpx_highbd_12_variance64x32,
   1315                    vpx_highbd_12_sub_pixel_variance64x32,
   1316                    vpx_highbd_12_sub_pixel_avg_variance64x32,
   1317                    NULL,
   1318                    NULL,
   1319                    vpx_highbd_sad64x32x4d_bits12)
   1320 
   1321         HIGHBD_BFP(BLOCK_32X64,
   1322                    vpx_highbd_sad32x64_bits12,
   1323                    vpx_highbd_sad32x64_avg_bits12,
   1324                    vpx_highbd_12_variance32x64,
   1325                    vpx_highbd_12_sub_pixel_variance32x64,
   1326                    vpx_highbd_12_sub_pixel_avg_variance32x64,
   1327                    NULL,
   1328                    NULL,
   1329                    vpx_highbd_sad32x64x4d_bits12)
   1330 
   1331         HIGHBD_BFP(BLOCK_32X32,
   1332                    vpx_highbd_sad32x32_bits12,
   1333                    vpx_highbd_sad32x32_avg_bits12,
   1334                    vpx_highbd_12_variance32x32,
   1335                    vpx_highbd_12_sub_pixel_variance32x32,
   1336                    vpx_highbd_12_sub_pixel_avg_variance32x32,
   1337                    vpx_highbd_sad32x32x3_bits12,
   1338                    vpx_highbd_sad32x32x8_bits12,
   1339                    vpx_highbd_sad32x32x4d_bits12)
   1340 
   1341         HIGHBD_BFP(BLOCK_64X64,
   1342                    vpx_highbd_sad64x64_bits12,
   1343                    vpx_highbd_sad64x64_avg_bits12,
   1344                    vpx_highbd_12_variance64x64,
   1345                    vpx_highbd_12_sub_pixel_variance64x64,
   1346                    vpx_highbd_12_sub_pixel_avg_variance64x64,
   1347                    vpx_highbd_sad64x64x3_bits12,
   1348                    vpx_highbd_sad64x64x8_bits12,
   1349                    vpx_highbd_sad64x64x4d_bits12)
   1350 
   1351         HIGHBD_BFP(BLOCK_16X16,
   1352                    vpx_highbd_sad16x16_bits12,
   1353                    vpx_highbd_sad16x16_avg_bits12,
   1354                    vpx_highbd_12_variance16x16,
   1355                    vpx_highbd_12_sub_pixel_variance16x16,
   1356                    vpx_highbd_12_sub_pixel_avg_variance16x16,
   1357                    vpx_highbd_sad16x16x3_bits12,
   1358                    vpx_highbd_sad16x16x8_bits12,
   1359                    vpx_highbd_sad16x16x4d_bits12)
   1360 
   1361         HIGHBD_BFP(BLOCK_16X8,
   1362                    vpx_highbd_sad16x8_bits12,
   1363                    vpx_highbd_sad16x8_avg_bits12,
   1364                    vpx_highbd_12_variance16x8,
   1365                    vpx_highbd_12_sub_pixel_variance16x8,
   1366                    vpx_highbd_12_sub_pixel_avg_variance16x8,
   1367                    vpx_highbd_sad16x8x3_bits12,
   1368                    vpx_highbd_sad16x8x8_bits12,
   1369                    vpx_highbd_sad16x8x4d_bits12)
   1370 
   1371         HIGHBD_BFP(BLOCK_8X16,
   1372                    vpx_highbd_sad8x16_bits12,
   1373                    vpx_highbd_sad8x16_avg_bits12,
   1374                    vpx_highbd_12_variance8x16,
   1375                    vpx_highbd_12_sub_pixel_variance8x16,
   1376                    vpx_highbd_12_sub_pixel_avg_variance8x16,
   1377                    vpx_highbd_sad8x16x3_bits12,
   1378                    vpx_highbd_sad8x16x8_bits12,
   1379                    vpx_highbd_sad8x16x4d_bits12)
   1380 
   1381         HIGHBD_BFP(BLOCK_8X8,
   1382                    vpx_highbd_sad8x8_bits12,
   1383                    vpx_highbd_sad8x8_avg_bits12,
   1384                    vpx_highbd_12_variance8x8,
   1385                    vpx_highbd_12_sub_pixel_variance8x8,
   1386                    vpx_highbd_12_sub_pixel_avg_variance8x8,
   1387                    vpx_highbd_sad8x8x3_bits12,
   1388                    vpx_highbd_sad8x8x8_bits12,
   1389                    vpx_highbd_sad8x8x4d_bits12)
   1390 
   1391         HIGHBD_BFP(BLOCK_8X4,
   1392                    vpx_highbd_sad8x4_bits12,
   1393                    vpx_highbd_sad8x4_avg_bits12,
   1394                    vpx_highbd_12_variance8x4,
   1395                    vpx_highbd_12_sub_pixel_variance8x4,
   1396                    vpx_highbd_12_sub_pixel_avg_variance8x4,
   1397                    NULL,
   1398                    vpx_highbd_sad8x4x8_bits12,
   1399                    vpx_highbd_sad8x4x4d_bits12)
   1400 
   1401         HIGHBD_BFP(BLOCK_4X8,
   1402                    vpx_highbd_sad4x8_bits12,
   1403                    vpx_highbd_sad4x8_avg_bits12,
   1404                    vpx_highbd_12_variance4x8,
   1405                    vpx_highbd_12_sub_pixel_variance4x8,
   1406                    vpx_highbd_12_sub_pixel_avg_variance4x8,
   1407                    NULL,
   1408                    vpx_highbd_sad4x8x8_bits12,
   1409                    vpx_highbd_sad4x8x4d_bits12)
   1410 
   1411         HIGHBD_BFP(BLOCK_4X4,
   1412                    vpx_highbd_sad4x4_bits12,
   1413                    vpx_highbd_sad4x4_avg_bits12,
   1414                    vpx_highbd_12_variance4x4,
   1415                    vpx_highbd_12_sub_pixel_variance4x4,
   1416                    vpx_highbd_12_sub_pixel_avg_variance4x4,
   1417                    vpx_highbd_sad4x4x3_bits12,
   1418                    vpx_highbd_sad4x4x8_bits12,
   1419                    vpx_highbd_sad4x4x4d_bits12)
   1420         break;
   1421 
   1422       default:
   1423         assert(0 && "cm->bit_depth should be VPX_BITS_8, "
   1424                     "VPX_BITS_10 or VPX_BITS_12");
   1425     }
   1426   }
   1427 }
   1428 #endif  // CONFIG_VP9_HIGHBITDEPTH
   1429 
   1430 static void realloc_segmentation_maps(VP9_COMP *cpi) {
   1431   VP9_COMMON *const cm = &cpi->common;
   1432 
   1433   // Create the encoder segmentation map and set all entries to 0
   1434   vpx_free(cpi->segmentation_map);
   1435   CHECK_MEM_ERROR(cm, cpi->segmentation_map,
   1436                   vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
   1437 
   1438   // Create a map used for cyclic background refresh.
   1439   if (cpi->cyclic_refresh)
   1440     vp9_cyclic_refresh_free(cpi->cyclic_refresh);
   1441   CHECK_MEM_ERROR(cm, cpi->cyclic_refresh,
   1442                   vp9_cyclic_refresh_alloc(cm->mi_rows, cm->mi_cols));
   1443 
   1444   // Create a map used to mark inactive areas.
   1445   vpx_free(cpi->active_map.map);
   1446   CHECK_MEM_ERROR(cm, cpi->active_map.map,
   1447                   vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
   1448 
   1449   // And a place holder structure is the coding context
   1450   // for use if we want to save and restore it
   1451   vpx_free(cpi->coding_context.last_frame_seg_map_copy);
   1452   CHECK_MEM_ERROR(cm, cpi->coding_context.last_frame_seg_map_copy,
   1453                   vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
   1454 }
   1455 
   1456 void vp9_change_config(struct VP9_COMP *cpi, const VP9EncoderConfig *oxcf) {
   1457   VP9_COMMON *const cm = &cpi->common;
   1458   RATE_CONTROL *const rc = &cpi->rc;
   1459   int last_w = cpi->oxcf.width;
   1460   int last_h = cpi->oxcf.height;
   1461 
   1462   if (cm->profile != oxcf->profile)
   1463     cm->profile = oxcf->profile;
   1464   cm->bit_depth = oxcf->bit_depth;
   1465   cm->color_space = oxcf->color_space;
   1466   cm->color_range = oxcf->color_range;
   1467 
   1468   if (cm->profile <= PROFILE_1)
   1469     assert(cm->bit_depth == VPX_BITS_8);
   1470   else
   1471     assert(cm->bit_depth > VPX_BITS_8);
   1472 
   1473   cpi->oxcf = *oxcf;
   1474 #if CONFIG_VP9_HIGHBITDEPTH
   1475   cpi->td.mb.e_mbd.bd = (int)cm->bit_depth;
   1476 #endif  // CONFIG_VP9_HIGHBITDEPTH
   1477 
   1478   rc->baseline_gf_interval = (MIN_GF_INTERVAL + MAX_GF_INTERVAL) / 2;
   1479 
   1480   cpi->refresh_golden_frame = 0;
   1481   cpi->refresh_last_frame = 1;
   1482   cm->refresh_frame_context = 1;
   1483   cm->reset_frame_context = 0;
   1484 
   1485   vp9_reset_segment_features(&cm->seg);
   1486   vp9_set_high_precision_mv(cpi, 0);
   1487 
   1488   {
   1489     int i;
   1490 
   1491     for (i = 0; i < MAX_SEGMENTS; i++)
   1492       cpi->segment_encode_breakout[i] = cpi->oxcf.encode_breakout;
   1493   }
   1494   cpi->encode_breakout = cpi->oxcf.encode_breakout;
   1495 
   1496   set_rc_buffer_sizes(rc, &cpi->oxcf);
   1497 
   1498   // Under a configuration change, where maximum_buffer_size may change,
   1499   // keep buffer level clipped to the maximum allowed buffer size.
   1500   rc->bits_off_target = VPXMIN(rc->bits_off_target, rc->maximum_buffer_size);
   1501   rc->buffer_level = VPXMIN(rc->buffer_level, rc->maximum_buffer_size);
   1502 
   1503   // Set up frame rate and related parameters rate control values.
   1504   vp9_new_framerate(cpi, cpi->framerate);
   1505 
   1506   // Set absolute upper and lower quality limits
   1507   rc->worst_quality = cpi->oxcf.worst_allowed_q;
   1508   rc->best_quality = cpi->oxcf.best_allowed_q;
   1509 
   1510   cm->interp_filter = cpi->sf.default_interp_filter;
   1511 
   1512   if (cpi->oxcf.render_width > 0 && cpi->oxcf.render_height > 0) {
   1513     cm->render_width = cpi->oxcf.render_width;
   1514     cm->render_height = cpi->oxcf.render_height;
   1515   } else {
   1516     cm->render_width = cpi->oxcf.width;
   1517     cm->render_height = cpi->oxcf.height;
   1518   }
   1519   if (last_w != cpi->oxcf.width || last_h != cpi->oxcf.height) {
   1520     cm->width = cpi->oxcf.width;
   1521     cm->height = cpi->oxcf.height;
   1522   }
   1523 
   1524   if (cpi->initial_width) {
   1525     int new_mi_size = 0;
   1526     vp9_set_mb_mi(cm, cm->width, cm->height);
   1527     new_mi_size = cm->mi_stride * calc_mi_size(cm->mi_rows);
   1528     if (cm->mi_alloc_size < new_mi_size) {
   1529       vp9_free_context_buffers(cm);
   1530       alloc_compressor_data(cpi);
   1531       realloc_segmentation_maps(cpi);
   1532       cpi->initial_width = cpi->initial_height = 0;
   1533     }
   1534   }
   1535   update_frame_size(cpi);
   1536 
   1537   if ((cpi->svc.number_temporal_layers > 1 &&
   1538       cpi->oxcf.rc_mode == VPX_CBR) ||
   1539       ((cpi->svc.number_temporal_layers > 1 ||
   1540         cpi->svc.number_spatial_layers > 1) &&
   1541        cpi->oxcf.pass != 1)) {
   1542     vp9_update_layer_context_change_config(cpi,
   1543                                            (int)cpi->oxcf.target_bandwidth);
   1544   }
   1545 
   1546   cpi->alt_ref_source = NULL;
   1547   rc->is_src_frame_alt_ref = 0;
   1548 
   1549 #if 0
   1550   // Experimental RD Code
   1551   cpi->frame_distortion = 0;
   1552   cpi->last_frame_distortion = 0;
   1553 #endif
   1554 
   1555   set_tile_limits(cpi);
   1556 
   1557   cpi->ext_refresh_frame_flags_pending = 0;
   1558   cpi->ext_refresh_frame_context_pending = 0;
   1559 
   1560 #if CONFIG_VP9_HIGHBITDEPTH
   1561   highbd_set_var_fns(cpi);
   1562 #endif
   1563 }
   1564 
   1565 #ifndef M_LOG2_E
   1566 #define M_LOG2_E 0.693147180559945309417
   1567 #endif
   1568 #define log2f(x) (log (x) / (float) M_LOG2_E)
   1569 
   1570 static void cal_nmvjointsadcost(int *mvjointsadcost) {
   1571   mvjointsadcost[0] = 600;
   1572   mvjointsadcost[1] = 300;
   1573   mvjointsadcost[2] = 300;
   1574   mvjointsadcost[3] = 300;
   1575 }
   1576 
   1577 static void cal_nmvsadcosts(int *mvsadcost[2]) {
   1578   int i = 1;
   1579 
   1580   mvsadcost[0][0] = 0;
   1581   mvsadcost[1][0] = 0;
   1582 
   1583   do {
   1584     double z = 256 * (2 * (log2f(8 * i) + .6));
   1585     mvsadcost[0][i] = (int)z;
   1586     mvsadcost[1][i] = (int)z;
   1587     mvsadcost[0][-i] = (int)z;
   1588     mvsadcost[1][-i] = (int)z;
   1589   } while (++i <= MV_MAX);
   1590 }
   1591 
   1592 static void cal_nmvsadcosts_hp(int *mvsadcost[2]) {
   1593   int i = 1;
   1594 
   1595   mvsadcost[0][0] = 0;
   1596   mvsadcost[1][0] = 0;
   1597 
   1598   do {
   1599     double z = 256 * (2 * (log2f(8 * i) + .6));
   1600     mvsadcost[0][i] = (int)z;
   1601     mvsadcost[1][i] = (int)z;
   1602     mvsadcost[0][-i] = (int)z;
   1603     mvsadcost[1][-i] = (int)z;
   1604   } while (++i <= MV_MAX);
   1605 }
   1606 
   1607 
   1608 VP9_COMP *vp9_create_compressor(VP9EncoderConfig *oxcf,
   1609                                 BufferPool *const pool) {
   1610   unsigned int i;
   1611   VP9_COMP *volatile const cpi = vpx_memalign(32, sizeof(VP9_COMP));
   1612   VP9_COMMON *volatile const cm = cpi != NULL ? &cpi->common : NULL;
   1613 
   1614   if (!cm)
   1615     return NULL;
   1616 
   1617   vp9_zero(*cpi);
   1618 
   1619   if (setjmp(cm->error.jmp)) {
   1620     cm->error.setjmp = 0;
   1621     vp9_remove_compressor(cpi);
   1622     return 0;
   1623   }
   1624 
   1625   cm->error.setjmp = 1;
   1626   cm->alloc_mi = vp9_enc_alloc_mi;
   1627   cm->free_mi = vp9_enc_free_mi;
   1628   cm->setup_mi = vp9_enc_setup_mi;
   1629 
   1630   CHECK_MEM_ERROR(cm, cm->fc,
   1631                   (FRAME_CONTEXT *)vpx_calloc(1, sizeof(*cm->fc)));
   1632   CHECK_MEM_ERROR(cm, cm->frame_contexts,
   1633                   (FRAME_CONTEXT *)vpx_calloc(FRAME_CONTEXTS,
   1634                   sizeof(*cm->frame_contexts)));
   1635 
   1636   cpi->use_svc = 0;
   1637   cpi->resize_state = 0;
   1638   cpi->resize_avg_qp = 0;
   1639   cpi->resize_buffer_underflow = 0;
   1640   cpi->common.buffer_pool = pool;
   1641 
   1642   cpi->rc.high_source_sad = 0;
   1643 
   1644   init_config(cpi, oxcf);
   1645   vp9_rc_init(&cpi->oxcf, oxcf->pass, &cpi->rc);
   1646 
   1647   cm->current_video_frame = 0;
   1648   cpi->partition_search_skippable_frame = 0;
   1649   cpi->tile_data = NULL;
   1650 
   1651   realloc_segmentation_maps(cpi);
   1652 
   1653   CHECK_MEM_ERROR(cm, cpi->nmvcosts[0],
   1654                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvcosts[0])));
   1655   CHECK_MEM_ERROR(cm, cpi->nmvcosts[1],
   1656                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvcosts[1])));
   1657   CHECK_MEM_ERROR(cm, cpi->nmvcosts_hp[0],
   1658                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvcosts_hp[0])));
   1659   CHECK_MEM_ERROR(cm, cpi->nmvcosts_hp[1],
   1660                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvcosts_hp[1])));
   1661   CHECK_MEM_ERROR(cm, cpi->nmvsadcosts[0],
   1662                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvsadcosts[0])));
   1663   CHECK_MEM_ERROR(cm, cpi->nmvsadcosts[1],
   1664                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvsadcosts[1])));
   1665   CHECK_MEM_ERROR(cm, cpi->nmvsadcosts_hp[0],
   1666                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvsadcosts_hp[0])));
   1667   CHECK_MEM_ERROR(cm, cpi->nmvsadcosts_hp[1],
   1668                   vpx_calloc(MV_VALS, sizeof(*cpi->nmvsadcosts_hp[1])));
   1669 
   1670   for (i = 0; i < (sizeof(cpi->mbgraph_stats) /
   1671                    sizeof(cpi->mbgraph_stats[0])); i++) {
   1672     CHECK_MEM_ERROR(cm, cpi->mbgraph_stats[i].mb_stats,
   1673                     vpx_calloc(cm->MBs *
   1674                                sizeof(*cpi->mbgraph_stats[i].mb_stats), 1));
   1675   }
   1676 
   1677 #if CONFIG_FP_MB_STATS
   1678   cpi->use_fp_mb_stats = 0;
   1679   if (cpi->use_fp_mb_stats) {
   1680     // a place holder used to store the first pass mb stats in the first pass
   1681     CHECK_MEM_ERROR(cm, cpi->twopass.frame_mb_stats_buf,
   1682                     vpx_calloc(cm->MBs * sizeof(uint8_t), 1));
   1683   } else {
   1684     cpi->twopass.frame_mb_stats_buf = NULL;
   1685   }
   1686 #endif
   1687 
   1688   cpi->refresh_alt_ref_frame = 0;
   1689   cpi->multi_arf_last_grp_enabled = 0;
   1690 
   1691   cpi->b_calculate_psnr = CONFIG_INTERNAL_STATS;
   1692 #if CONFIG_INTERNAL_STATS
   1693   cpi->b_calculate_ssimg = 0;
   1694   cpi->b_calculate_blockiness = 1;
   1695   cpi->b_calculate_consistency = 1;
   1696   cpi->total_inconsistency = 0;
   1697   cpi->psnr.worst = 100.0;
   1698   cpi->worst_ssim = 100.0;
   1699 
   1700   cpi->count = 0;
   1701   cpi->bytes = 0;
   1702 
   1703   if (cpi->b_calculate_psnr) {
   1704     cpi->total_sq_error = 0;
   1705     cpi->total_samples = 0;
   1706 
   1707     cpi->totalp_sq_error = 0;
   1708     cpi->totalp_samples = 0;
   1709 
   1710     cpi->tot_recode_hits = 0;
   1711     cpi->summed_quality = 0;
   1712     cpi->summed_weights = 0;
   1713     cpi->summedp_quality = 0;
   1714     cpi->summedp_weights = 0;
   1715   }
   1716 
   1717   if (cpi->b_calculate_ssimg) {
   1718     cpi->ssimg.worst= 100.0;
   1719   }
   1720   cpi->fastssim.worst = 100.0;
   1721 
   1722   cpi->psnrhvs.worst = 100.0;
   1723 
   1724   if (cpi->b_calculate_blockiness) {
   1725     cpi->total_blockiness = 0;
   1726     cpi->worst_blockiness = 0.0;
   1727   }
   1728 
   1729   if (cpi->b_calculate_consistency) {
   1730     cpi->ssim_vars = vpx_malloc(sizeof(*cpi->ssim_vars) *
   1731                                 4 * cpi->common.mi_rows * cpi->common.mi_cols);
   1732     cpi->worst_consistency = 100.0;
   1733   }
   1734 
   1735 #endif
   1736 
   1737   cpi->first_time_stamp_ever = INT64_MAX;
   1738 
   1739   cal_nmvjointsadcost(cpi->td.mb.nmvjointsadcost);
   1740   cpi->td.mb.nmvcost[0] = &cpi->nmvcosts[0][MV_MAX];
   1741   cpi->td.mb.nmvcost[1] = &cpi->nmvcosts[1][MV_MAX];
   1742   cpi->td.mb.nmvsadcost[0] = &cpi->nmvsadcosts[0][MV_MAX];
   1743   cpi->td.mb.nmvsadcost[1] = &cpi->nmvsadcosts[1][MV_MAX];
   1744   cal_nmvsadcosts(cpi->td.mb.nmvsadcost);
   1745 
   1746   cpi->td.mb.nmvcost_hp[0] = &cpi->nmvcosts_hp[0][MV_MAX];
   1747   cpi->td.mb.nmvcost_hp[1] = &cpi->nmvcosts_hp[1][MV_MAX];
   1748   cpi->td.mb.nmvsadcost_hp[0] = &cpi->nmvsadcosts_hp[0][MV_MAX];
   1749   cpi->td.mb.nmvsadcost_hp[1] = &cpi->nmvsadcosts_hp[1][MV_MAX];
   1750   cal_nmvsadcosts_hp(cpi->td.mb.nmvsadcost_hp);
   1751 
   1752 #if CONFIG_VP9_TEMPORAL_DENOISING
   1753 #ifdef OUTPUT_YUV_DENOISED
   1754   yuv_denoised_file = fopen("denoised.yuv", "ab");
   1755 #endif
   1756 #endif
   1757 #ifdef OUTPUT_YUV_SKINMAP
   1758   yuv_skinmap_file = fopen("skinmap.yuv", "ab");
   1759 #endif
   1760 #ifdef OUTPUT_YUV_REC
   1761   yuv_rec_file = fopen("rec.yuv", "wb");
   1762 #endif
   1763 
   1764 #if 0
   1765   framepsnr = fopen("framepsnr.stt", "a");
   1766   kf_list = fopen("kf_list.stt", "w");
   1767 #endif
   1768 
   1769   cpi->allow_encode_breakout = ENCODE_BREAKOUT_ENABLED;
   1770 
   1771   if (oxcf->pass == 1) {
   1772     vp9_init_first_pass(cpi);
   1773   } else if (oxcf->pass == 2) {
   1774     const size_t packet_sz = sizeof(FIRSTPASS_STATS);
   1775     const int packets = (int)(oxcf->two_pass_stats_in.sz / packet_sz);
   1776 
   1777     if (cpi->svc.number_spatial_layers > 1
   1778         || cpi->svc.number_temporal_layers > 1) {
   1779       FIRSTPASS_STATS *const stats = oxcf->two_pass_stats_in.buf;
   1780       FIRSTPASS_STATS *stats_copy[VPX_SS_MAX_LAYERS] = {0};
   1781       int i;
   1782 
   1783       for (i = 0; i < oxcf->ss_number_layers; ++i) {
   1784         FIRSTPASS_STATS *const last_packet_for_layer =
   1785             &stats[packets - oxcf->ss_number_layers + i];
   1786         const int layer_id = (int)last_packet_for_layer->spatial_layer_id;
   1787         const int packets_in_layer = (int)last_packet_for_layer->count + 1;
   1788         if (layer_id >= 0 && layer_id < oxcf->ss_number_layers) {
   1789           LAYER_CONTEXT *const lc = &cpi->svc.layer_context[layer_id];
   1790 
   1791           vpx_free(lc->rc_twopass_stats_in.buf);
   1792 
   1793           lc->rc_twopass_stats_in.sz = packets_in_layer * packet_sz;
   1794           CHECK_MEM_ERROR(cm, lc->rc_twopass_stats_in.buf,
   1795                           vpx_malloc(lc->rc_twopass_stats_in.sz));
   1796           lc->twopass.stats_in_start = lc->rc_twopass_stats_in.buf;
   1797           lc->twopass.stats_in = lc->twopass.stats_in_start;
   1798           lc->twopass.stats_in_end = lc->twopass.stats_in_start
   1799                                      + packets_in_layer - 1;
   1800           stats_copy[layer_id] = lc->rc_twopass_stats_in.buf;
   1801         }
   1802       }
   1803 
   1804       for (i = 0; i < packets; ++i) {
   1805         const int layer_id = (int)stats[i].spatial_layer_id;
   1806         if (layer_id >= 0 && layer_id < oxcf->ss_number_layers
   1807             && stats_copy[layer_id] != NULL) {
   1808           *stats_copy[layer_id] = stats[i];
   1809           ++stats_copy[layer_id];
   1810         }
   1811       }
   1812 
   1813       vp9_init_second_pass_spatial_svc(cpi);
   1814     } else {
   1815 #if CONFIG_FP_MB_STATS
   1816       if (cpi->use_fp_mb_stats) {
   1817         const size_t psz = cpi->common.MBs * sizeof(uint8_t);
   1818         const int ps = (int)(oxcf->firstpass_mb_stats_in.sz / psz);
   1819 
   1820         cpi->twopass.firstpass_mb_stats.mb_stats_start =
   1821             oxcf->firstpass_mb_stats_in.buf;
   1822         cpi->twopass.firstpass_mb_stats.mb_stats_end =
   1823             cpi->twopass.firstpass_mb_stats.mb_stats_start +
   1824             (ps - 1) * cpi->common.MBs * sizeof(uint8_t);
   1825       }
   1826 #endif
   1827 
   1828       cpi->twopass.stats_in_start = oxcf->two_pass_stats_in.buf;
   1829       cpi->twopass.stats_in = cpi->twopass.stats_in_start;
   1830       cpi->twopass.stats_in_end = &cpi->twopass.stats_in[packets - 1];
   1831 
   1832       vp9_init_second_pass(cpi);
   1833     }
   1834   }
   1835 
   1836   vp9_set_speed_features_framesize_independent(cpi);
   1837   vp9_set_speed_features_framesize_dependent(cpi);
   1838 
   1839   // Allocate memory to store variances for a frame.
   1840   CHECK_MEM_ERROR(cm, cpi->source_diff_var,
   1841                   vpx_calloc(cm->MBs, sizeof(diff)));
   1842   cpi->source_var_thresh = 0;
   1843   cpi->frames_till_next_var_check = 0;
   1844 
   1845 #define BFP(BT, SDF, SDAF, VF, SVF, SVAF, SDX3F, SDX8F, SDX4DF)\
   1846     cpi->fn_ptr[BT].sdf            = SDF; \
   1847     cpi->fn_ptr[BT].sdaf           = SDAF; \
   1848     cpi->fn_ptr[BT].vf             = VF; \
   1849     cpi->fn_ptr[BT].svf            = SVF; \
   1850     cpi->fn_ptr[BT].svaf           = SVAF; \
   1851     cpi->fn_ptr[BT].sdx3f          = SDX3F; \
   1852     cpi->fn_ptr[BT].sdx8f          = SDX8F; \
   1853     cpi->fn_ptr[BT].sdx4df         = SDX4DF;
   1854 
   1855   BFP(BLOCK_32X16, vpx_sad32x16, vpx_sad32x16_avg,
   1856       vpx_variance32x16, vpx_sub_pixel_variance32x16,
   1857       vpx_sub_pixel_avg_variance32x16, NULL, NULL, vpx_sad32x16x4d)
   1858 
   1859   BFP(BLOCK_16X32, vpx_sad16x32, vpx_sad16x32_avg,
   1860       vpx_variance16x32, vpx_sub_pixel_variance16x32,
   1861       vpx_sub_pixel_avg_variance16x32, NULL, NULL, vpx_sad16x32x4d)
   1862 
   1863   BFP(BLOCK_64X32, vpx_sad64x32, vpx_sad64x32_avg,
   1864       vpx_variance64x32, vpx_sub_pixel_variance64x32,
   1865       vpx_sub_pixel_avg_variance64x32, NULL, NULL, vpx_sad64x32x4d)
   1866 
   1867   BFP(BLOCK_32X64, vpx_sad32x64, vpx_sad32x64_avg,
   1868       vpx_variance32x64, vpx_sub_pixel_variance32x64,
   1869       vpx_sub_pixel_avg_variance32x64, NULL, NULL, vpx_sad32x64x4d)
   1870 
   1871   BFP(BLOCK_32X32, vpx_sad32x32, vpx_sad32x32_avg,
   1872       vpx_variance32x32, vpx_sub_pixel_variance32x32,
   1873       vpx_sub_pixel_avg_variance32x32, vpx_sad32x32x3, vpx_sad32x32x8,
   1874       vpx_sad32x32x4d)
   1875 
   1876   BFP(BLOCK_64X64, vpx_sad64x64, vpx_sad64x64_avg,
   1877       vpx_variance64x64, vpx_sub_pixel_variance64x64,
   1878       vpx_sub_pixel_avg_variance64x64, vpx_sad64x64x3, vpx_sad64x64x8,
   1879       vpx_sad64x64x4d)
   1880 
   1881   BFP(BLOCK_16X16, vpx_sad16x16, vpx_sad16x16_avg,
   1882       vpx_variance16x16, vpx_sub_pixel_variance16x16,
   1883       vpx_sub_pixel_avg_variance16x16, vpx_sad16x16x3, vpx_sad16x16x8,
   1884       vpx_sad16x16x4d)
   1885 
   1886   BFP(BLOCK_16X8, vpx_sad16x8, vpx_sad16x8_avg,
   1887       vpx_variance16x8, vpx_sub_pixel_variance16x8,
   1888       vpx_sub_pixel_avg_variance16x8,
   1889       vpx_sad16x8x3, vpx_sad16x8x8, vpx_sad16x8x4d)
   1890 
   1891   BFP(BLOCK_8X16, vpx_sad8x16, vpx_sad8x16_avg,
   1892       vpx_variance8x16, vpx_sub_pixel_variance8x16,
   1893       vpx_sub_pixel_avg_variance8x16,
   1894       vpx_sad8x16x3, vpx_sad8x16x8, vpx_sad8x16x4d)
   1895 
   1896   BFP(BLOCK_8X8, vpx_sad8x8, vpx_sad8x8_avg,
   1897       vpx_variance8x8, vpx_sub_pixel_variance8x8,
   1898       vpx_sub_pixel_avg_variance8x8,
   1899       vpx_sad8x8x3, vpx_sad8x8x8, vpx_sad8x8x4d)
   1900 
   1901   BFP(BLOCK_8X4, vpx_sad8x4, vpx_sad8x4_avg,
   1902       vpx_variance8x4, vpx_sub_pixel_variance8x4,
   1903       vpx_sub_pixel_avg_variance8x4, NULL, vpx_sad8x4x8, vpx_sad8x4x4d)
   1904 
   1905   BFP(BLOCK_4X8, vpx_sad4x8, vpx_sad4x8_avg,
   1906       vpx_variance4x8, vpx_sub_pixel_variance4x8,
   1907       vpx_sub_pixel_avg_variance4x8, NULL, vpx_sad4x8x8, vpx_sad4x8x4d)
   1908 
   1909   BFP(BLOCK_4X4, vpx_sad4x4, vpx_sad4x4_avg,
   1910       vpx_variance4x4, vpx_sub_pixel_variance4x4,
   1911       vpx_sub_pixel_avg_variance4x4,
   1912       vpx_sad4x4x3, vpx_sad4x4x8, vpx_sad4x4x4d)
   1913 
   1914 #if CONFIG_VP9_HIGHBITDEPTH
   1915   highbd_set_var_fns(cpi);
   1916 #endif
   1917 
   1918   /* vp9_init_quantizer() is first called here. Add check in
   1919    * vp9_frame_init_quantizer() so that vp9_init_quantizer is only
   1920    * called later when needed. This will avoid unnecessary calls of
   1921    * vp9_init_quantizer() for every frame.
   1922    */
   1923   vp9_init_quantizer(cpi);
   1924 
   1925   vp9_loop_filter_init(cm);
   1926 
   1927   cm->error.setjmp = 0;
   1928 
   1929   return cpi;
   1930 }
   1931 #define SNPRINT(H, T) \
   1932   snprintf((H) + strlen(H), sizeof(H) - strlen(H), (T))
   1933 
   1934 #define SNPRINT2(H, T, V) \
   1935   snprintf((H) + strlen(H), sizeof(H) - strlen(H), (T), (V))
   1936 
   1937 void vp9_remove_compressor(VP9_COMP *cpi) {
   1938   VP9_COMMON *cm;
   1939   unsigned int i;
   1940   int t;
   1941 
   1942   if (!cpi)
   1943     return;
   1944 
   1945   cm = &cpi->common;
   1946   if (cm->current_video_frame > 0) {
   1947 #if CONFIG_INTERNAL_STATS
   1948     vpx_clear_system_state();
   1949 
   1950     if (cpi->oxcf.pass != 1) {
   1951       char headings[512] = {0};
   1952       char results[512] = {0};
   1953       FILE *f = fopen("opsnr.stt", "a");
   1954       double time_encoded = (cpi->last_end_time_stamp_seen
   1955                              - cpi->first_time_stamp_ever) / 10000000.000;
   1956       double total_encode_time = (cpi->time_receive_data +
   1957                                   cpi->time_compress_data)   / 1000.000;
   1958       const double dr =
   1959           (double)cpi->bytes * (double) 8 / (double)1000 / time_encoded;
   1960       const double peak = (double)((1 << cpi->oxcf.input_bit_depth) - 1);
   1961 
   1962       if (cpi->b_calculate_psnr) {
   1963         const double total_psnr =
   1964             vpx_sse_to_psnr((double)cpi->total_samples, peak,
   1965                             (double)cpi->total_sq_error);
   1966         const double totalp_psnr =
   1967             vpx_sse_to_psnr((double)cpi->totalp_samples, peak,
   1968                             (double)cpi->totalp_sq_error);
   1969         const double total_ssim = 100 * pow(cpi->summed_quality /
   1970                                             cpi->summed_weights, 8.0);
   1971         const double totalp_ssim = 100 * pow(cpi->summedp_quality /
   1972                                              cpi->summedp_weights, 8.0);
   1973 
   1974         snprintf(headings, sizeof(headings),
   1975                  "Bitrate\tAVGPsnr\tGLBPsnr\tAVPsnrP\tGLPsnrP\t"
   1976                  "VPXSSIM\tVPSSIMP\tFASTSIM\tPSNRHVS\t"
   1977                  "WstPsnr\tWstSsim\tWstFast\tWstHVS");
   1978         snprintf(results, sizeof(results),
   1979                  "%7.2f\t%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
   1980                  "%7.3f\t%7.3f\t%7.3f\t%7.3f\t"
   1981                  "%7.3f\t%7.3f\t%7.3f\t%7.3f",
   1982                  dr, cpi->psnr.stat[ALL] / cpi->count, total_psnr,
   1983                  cpi->psnrp.stat[ALL] / cpi->count, totalp_psnr,
   1984                  total_ssim, totalp_ssim,
   1985                  cpi->fastssim.stat[ALL] / cpi->count,
   1986                  cpi->psnrhvs.stat[ALL] / cpi->count,
   1987                  cpi->psnr.worst, cpi->worst_ssim, cpi->fastssim.worst,
   1988                  cpi->psnrhvs.worst);
   1989 
   1990         if (cpi->b_calculate_blockiness) {
   1991           SNPRINT(headings, "\t  Block\tWstBlck");
   1992           SNPRINT2(results, "\t%7.3f", cpi->total_blockiness / cpi->count);
   1993           SNPRINT2(results, "\t%7.3f", cpi->worst_blockiness);
   1994         }
   1995 
   1996         if (cpi->b_calculate_consistency) {
   1997           double consistency =
   1998               vpx_sse_to_psnr((double)cpi->totalp_samples, peak,
   1999                               (double)cpi->total_inconsistency);
   2000 
   2001           SNPRINT(headings, "\tConsist\tWstCons");
   2002           SNPRINT2(results, "\t%7.3f", consistency);
   2003           SNPRINT2(results, "\t%7.3f", cpi->worst_consistency);
   2004         }
   2005 
   2006         if (cpi->b_calculate_ssimg) {
   2007           SNPRINT(headings, "\t  SSIMG\tWtSSIMG");
   2008           SNPRINT2(results, "\t%7.3f", cpi->ssimg.stat[ALL] / cpi->count);
   2009           SNPRINT2(results, "\t%7.3f", cpi->ssimg.worst);
   2010         }
   2011 
   2012         fprintf(f, "%s\t    Time\n", headings);
   2013         fprintf(f, "%s\t%8.0f\n", results, total_encode_time);
   2014       }
   2015 
   2016       fclose(f);
   2017     }
   2018 
   2019 #endif
   2020 
   2021 #if 0
   2022     {
   2023       printf("\n_pick_loop_filter_level:%d\n", cpi->time_pick_lpf / 1000);
   2024       printf("\n_frames recive_data encod_mb_row compress_frame  Total\n");
   2025       printf("%6d %10ld %10ld %10ld %10ld\n", cpi->common.current_video_frame,
   2026              cpi->time_receive_data / 1000, cpi->time_encode_sb_row / 1000,
   2027              cpi->time_compress_data / 1000,
   2028              (cpi->time_receive_data + cpi->time_compress_data) / 1000);
   2029     }
   2030 #endif
   2031   }
   2032 
   2033 #if CONFIG_VP9_TEMPORAL_DENOISING
   2034   vp9_denoiser_free(&(cpi->denoiser));
   2035 #endif
   2036 
   2037   for (t = 0; t < cpi->num_workers; ++t) {
   2038     VPxWorker *const worker = &cpi->workers[t];
   2039     EncWorkerData *const thread_data = &cpi->tile_thr_data[t];
   2040 
   2041     // Deallocate allocated threads.
   2042     vpx_get_worker_interface()->end(worker);
   2043 
   2044     // Deallocate allocated thread data.
   2045     if (t < cpi->num_workers - 1) {
   2046       vpx_free(thread_data->td->counts);
   2047       vp9_free_pc_tree(thread_data->td);
   2048       vpx_free(thread_data->td);
   2049     }
   2050   }
   2051   vpx_free(cpi->tile_thr_data);
   2052   vpx_free(cpi->workers);
   2053 
   2054   if (cpi->num_workers > 1)
   2055     vp9_loop_filter_dealloc(&cpi->lf_row_sync);
   2056 
   2057   dealloc_compressor_data(cpi);
   2058 
   2059   for (i = 0; i < sizeof(cpi->mbgraph_stats) /
   2060                   sizeof(cpi->mbgraph_stats[0]); ++i) {
   2061     vpx_free(cpi->mbgraph_stats[i].mb_stats);
   2062   }
   2063 
   2064 #if CONFIG_FP_MB_STATS
   2065   if (cpi->use_fp_mb_stats) {
   2066     vpx_free(cpi->twopass.frame_mb_stats_buf);
   2067     cpi->twopass.frame_mb_stats_buf = NULL;
   2068   }
   2069 #endif
   2070 
   2071   vp9_remove_common(cm);
   2072   vp9_free_ref_frame_buffers(cm->buffer_pool);
   2073 #if CONFIG_VP9_POSTPROC
   2074   vp9_free_postproc_buffers(cm);
   2075 #endif
   2076   vpx_free(cpi);
   2077 
   2078 #if CONFIG_VP9_TEMPORAL_DENOISING
   2079 #ifdef OUTPUT_YUV_DENOISED
   2080   fclose(yuv_denoised_file);
   2081 #endif
   2082 #endif
   2083 #ifdef OUTPUT_YUV_SKINMAP
   2084   fclose(yuv_skinmap_file);
   2085 #endif
   2086 #ifdef OUTPUT_YUV_REC
   2087   fclose(yuv_rec_file);
   2088 #endif
   2089 
   2090 #if 0
   2091 
   2092   if (keyfile)
   2093     fclose(keyfile);
   2094 
   2095   if (framepsnr)
   2096     fclose(framepsnr);
   2097 
   2098   if (kf_list)
   2099     fclose(kf_list);
   2100 
   2101 #endif
   2102 }
   2103 
   2104 /* TODO(yaowu): The block_variance calls the unoptimized versions of variance()
   2105  * and highbd_8_variance(). It should not.
   2106  */
   2107 static void encoder_variance(const uint8_t *a, int  a_stride,
   2108                              const uint8_t *b, int  b_stride,
   2109                              int  w, int  h, unsigned int *sse, int *sum) {
   2110   int i, j;
   2111 
   2112   *sum = 0;
   2113   *sse = 0;
   2114 
   2115   for (i = 0; i < h; i++) {
   2116     for (j = 0; j < w; j++) {
   2117       const int diff = a[j] - b[j];
   2118       *sum += diff;
   2119       *sse += diff * diff;
   2120     }
   2121 
   2122     a += a_stride;
   2123     b += b_stride;
   2124   }
   2125 }
   2126 
   2127 #if CONFIG_VP9_HIGHBITDEPTH
   2128 static void encoder_highbd_variance64(const uint8_t *a8, int  a_stride,
   2129                                       const uint8_t *b8, int  b_stride,
   2130                                       int w, int h, uint64_t *sse,
   2131                                       uint64_t *sum) {
   2132   int i, j;
   2133 
   2134   uint16_t *a = CONVERT_TO_SHORTPTR(a8);
   2135   uint16_t *b = CONVERT_TO_SHORTPTR(b8);
   2136   *sum = 0;
   2137   *sse = 0;
   2138 
   2139   for (i = 0; i < h; i++) {
   2140     for (j = 0; j < w; j++) {
   2141       const int diff = a[j] - b[j];
   2142       *sum += diff;
   2143       *sse += diff * diff;
   2144     }
   2145     a += a_stride;
   2146     b += b_stride;
   2147   }
   2148 }
   2149 
   2150 static void encoder_highbd_8_variance(const uint8_t *a8, int  a_stride,
   2151                                       const uint8_t *b8, int  b_stride,
   2152                                       int w, int h,
   2153                                       unsigned int *sse, int *sum) {
   2154   uint64_t sse_long = 0;
   2155   uint64_t sum_long = 0;
   2156   encoder_highbd_variance64(a8, a_stride, b8, b_stride, w, h,
   2157                             &sse_long, &sum_long);
   2158   *sse = (unsigned int)sse_long;
   2159   *sum = (int)sum_long;
   2160 }
   2161 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2162 
   2163 static int64_t get_sse(const uint8_t *a, int a_stride,
   2164                        const uint8_t *b, int b_stride,
   2165                        int width, int height) {
   2166   const int dw = width % 16;
   2167   const int dh = height % 16;
   2168   int64_t total_sse = 0;
   2169   unsigned int sse = 0;
   2170   int sum = 0;
   2171   int x, y;
   2172 
   2173   if (dw > 0) {
   2174     encoder_variance(&a[width - dw], a_stride, &b[width - dw], b_stride,
   2175                      dw, height, &sse, &sum);
   2176     total_sse += sse;
   2177   }
   2178 
   2179   if (dh > 0) {
   2180     encoder_variance(&a[(height - dh) * a_stride], a_stride,
   2181                      &b[(height - dh) * b_stride], b_stride,
   2182                      width - dw, dh, &sse, &sum);
   2183     total_sse += sse;
   2184   }
   2185 
   2186   for (y = 0; y < height / 16; ++y) {
   2187     const uint8_t *pa = a;
   2188     const uint8_t *pb = b;
   2189     for (x = 0; x < width / 16; ++x) {
   2190       vpx_mse16x16(pa, a_stride, pb, b_stride, &sse);
   2191       total_sse += sse;
   2192 
   2193       pa += 16;
   2194       pb += 16;
   2195     }
   2196 
   2197     a += 16 * a_stride;
   2198     b += 16 * b_stride;
   2199   }
   2200 
   2201   return total_sse;
   2202 }
   2203 
   2204 #if CONFIG_VP9_HIGHBITDEPTH
   2205 static int64_t highbd_get_sse_shift(const uint8_t *a8, int a_stride,
   2206                                     const uint8_t *b8, int b_stride,
   2207                                     int width, int height,
   2208                                     unsigned int input_shift) {
   2209   const uint16_t *a = CONVERT_TO_SHORTPTR(a8);
   2210   const uint16_t *b = CONVERT_TO_SHORTPTR(b8);
   2211   int64_t total_sse = 0;
   2212   int x, y;
   2213   for (y = 0; y < height; ++y) {
   2214     for (x = 0; x < width; ++x) {
   2215       int64_t diff;
   2216       diff = (a[x] >> input_shift) - (b[x] >> input_shift);
   2217       total_sse += diff * diff;
   2218     }
   2219     a += a_stride;
   2220     b += b_stride;
   2221   }
   2222   return total_sse;
   2223 }
   2224 
   2225 static int64_t highbd_get_sse(const uint8_t *a, int a_stride,
   2226                               const uint8_t *b, int b_stride,
   2227                               int width, int height) {
   2228   int64_t total_sse = 0;
   2229   int x, y;
   2230   const int dw = width % 16;
   2231   const int dh = height % 16;
   2232   unsigned int sse = 0;
   2233   int sum = 0;
   2234   if (dw > 0) {
   2235     encoder_highbd_8_variance(&a[width - dw], a_stride,
   2236                               &b[width - dw], b_stride,
   2237                               dw, height, &sse, &sum);
   2238     total_sse += sse;
   2239   }
   2240   if (dh > 0) {
   2241     encoder_highbd_8_variance(&a[(height - dh) * a_stride], a_stride,
   2242                               &b[(height - dh) * b_stride], b_stride,
   2243                               width - dw, dh, &sse, &sum);
   2244     total_sse += sse;
   2245   }
   2246   for (y = 0; y < height / 16; ++y) {
   2247     const uint8_t *pa = a;
   2248     const uint8_t *pb = b;
   2249     for (x = 0; x < width / 16; ++x) {
   2250       vpx_highbd_8_mse16x16(pa, a_stride, pb, b_stride, &sse);
   2251       total_sse += sse;
   2252       pa += 16;
   2253       pb += 16;
   2254     }
   2255     a += 16 * a_stride;
   2256     b += 16 * b_stride;
   2257   }
   2258   return total_sse;
   2259 }
   2260 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2261 
   2262 typedef struct {
   2263   double psnr[4];       // total/y/u/v
   2264   uint64_t sse[4];      // total/y/u/v
   2265   uint32_t samples[4];  // total/y/u/v
   2266 } PSNR_STATS;
   2267 
   2268 #if CONFIG_VP9_HIGHBITDEPTH
   2269 static void calc_highbd_psnr(const YV12_BUFFER_CONFIG *a,
   2270                              const YV12_BUFFER_CONFIG *b,
   2271                              PSNR_STATS *psnr,
   2272                              unsigned int bit_depth,
   2273                              unsigned int in_bit_depth) {
   2274   const int widths[3] =
   2275       {a->y_crop_width,  a->uv_crop_width,  a->uv_crop_width };
   2276   const int heights[3] =
   2277       {a->y_crop_height, a->uv_crop_height, a->uv_crop_height};
   2278   const uint8_t *a_planes[3] = {a->y_buffer, a->u_buffer,  a->v_buffer };
   2279   const int a_strides[3] = {a->y_stride, a->uv_stride, a->uv_stride};
   2280   const uint8_t *b_planes[3] = {b->y_buffer, b->u_buffer,  b->v_buffer };
   2281   const int b_strides[3] = {b->y_stride, b->uv_stride, b->uv_stride};
   2282   int i;
   2283   uint64_t total_sse = 0;
   2284   uint32_t total_samples = 0;
   2285   const double peak = (double)((1 << in_bit_depth) - 1);
   2286   const unsigned int input_shift = bit_depth - in_bit_depth;
   2287 
   2288   for (i = 0; i < 3; ++i) {
   2289     const int w = widths[i];
   2290     const int h = heights[i];
   2291     const uint32_t samples = w * h;
   2292     uint64_t sse;
   2293     if (a->flags & YV12_FLAG_HIGHBITDEPTH) {
   2294       if (input_shift) {
   2295         sse = highbd_get_sse_shift(a_planes[i], a_strides[i],
   2296                                    b_planes[i], b_strides[i], w, h,
   2297                                    input_shift);
   2298       } else {
   2299         sse = highbd_get_sse(a_planes[i], a_strides[i],
   2300                              b_planes[i], b_strides[i], w, h);
   2301       }
   2302     } else {
   2303       sse = get_sse(a_planes[i], a_strides[i],
   2304                     b_planes[i], b_strides[i],
   2305                     w, h);
   2306     }
   2307     psnr->sse[1 + i] = sse;
   2308     psnr->samples[1 + i] = samples;
   2309     psnr->psnr[1 + i] = vpx_sse_to_psnr(samples, peak, (double)sse);
   2310 
   2311     total_sse += sse;
   2312     total_samples += samples;
   2313   }
   2314 
   2315   psnr->sse[0] = total_sse;
   2316   psnr->samples[0] = total_samples;
   2317   psnr->psnr[0] = vpx_sse_to_psnr((double)total_samples, peak,
   2318                                   (double)total_sse);
   2319 }
   2320 
   2321 #else  // !CONFIG_VP9_HIGHBITDEPTH
   2322 
   2323 static void calc_psnr(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b,
   2324                       PSNR_STATS *psnr) {
   2325   static const double peak = 255.0;
   2326   const int widths[3]        = {
   2327       a->y_crop_width, a->uv_crop_width, a->uv_crop_width};
   2328   const int heights[3]       = {
   2329       a->y_crop_height, a->uv_crop_height, a->uv_crop_height};
   2330   const uint8_t *a_planes[3] = {a->y_buffer, a->u_buffer, a->v_buffer};
   2331   const int a_strides[3]     = {a->y_stride, a->uv_stride, a->uv_stride};
   2332   const uint8_t *b_planes[3] = {b->y_buffer, b->u_buffer, b->v_buffer};
   2333   const int b_strides[3]     = {b->y_stride, b->uv_stride, b->uv_stride};
   2334   int i;
   2335   uint64_t total_sse = 0;
   2336   uint32_t total_samples = 0;
   2337 
   2338   for (i = 0; i < 3; ++i) {
   2339     const int w = widths[i];
   2340     const int h = heights[i];
   2341     const uint32_t samples = w * h;
   2342     const uint64_t sse = get_sse(a_planes[i], a_strides[i],
   2343                                  b_planes[i], b_strides[i],
   2344                                  w, h);
   2345     psnr->sse[1 + i] = sse;
   2346     psnr->samples[1 + i] = samples;
   2347     psnr->psnr[1 + i] = vpx_sse_to_psnr(samples, peak, (double)sse);
   2348 
   2349     total_sse += sse;
   2350     total_samples += samples;
   2351   }
   2352 
   2353   psnr->sse[0] = total_sse;
   2354   psnr->samples[0] = total_samples;
   2355   psnr->psnr[0] = vpx_sse_to_psnr((double)total_samples, peak,
   2356                                   (double)total_sse);
   2357 }
   2358 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2359 
   2360 static void generate_psnr_packet(VP9_COMP *cpi) {
   2361   struct vpx_codec_cx_pkt pkt;
   2362   int i;
   2363   PSNR_STATS psnr;
   2364 #if CONFIG_VP9_HIGHBITDEPTH
   2365   calc_highbd_psnr(cpi->Source, cpi->common.frame_to_show, &psnr,
   2366                    cpi->td.mb.e_mbd.bd, cpi->oxcf.input_bit_depth);
   2367 #else
   2368   calc_psnr(cpi->Source, cpi->common.frame_to_show, &psnr);
   2369 #endif
   2370 
   2371   for (i = 0; i < 4; ++i) {
   2372     pkt.data.psnr.samples[i] = psnr.samples[i];
   2373     pkt.data.psnr.sse[i] = psnr.sse[i];
   2374     pkt.data.psnr.psnr[i] = psnr.psnr[i];
   2375   }
   2376   pkt.kind = VPX_CODEC_PSNR_PKT;
   2377   if (cpi->use_svc)
   2378     cpi->svc.layer_context[cpi->svc.spatial_layer_id *
   2379         cpi->svc.number_temporal_layers].psnr_pkt = pkt.data.psnr;
   2380   else
   2381     vpx_codec_pkt_list_add(cpi->output_pkt_list, &pkt);
   2382 }
   2383 
   2384 int vp9_use_as_reference(VP9_COMP *cpi, int ref_frame_flags) {
   2385   if (ref_frame_flags > 7)
   2386     return -1;
   2387 
   2388   cpi->ref_frame_flags = ref_frame_flags;
   2389   return 0;
   2390 }
   2391 
   2392 void vp9_update_reference(VP9_COMP *cpi, int ref_frame_flags) {
   2393   cpi->ext_refresh_golden_frame = (ref_frame_flags & VP9_GOLD_FLAG) != 0;
   2394   cpi->ext_refresh_alt_ref_frame = (ref_frame_flags & VP9_ALT_FLAG) != 0;
   2395   cpi->ext_refresh_last_frame = (ref_frame_flags & VP9_LAST_FLAG) != 0;
   2396   cpi->ext_refresh_frame_flags_pending = 1;
   2397 }
   2398 
   2399 static YV12_BUFFER_CONFIG *get_vp9_ref_frame_buffer(VP9_COMP *cpi,
   2400                                 VP9_REFFRAME ref_frame_flag) {
   2401   MV_REFERENCE_FRAME ref_frame = NONE;
   2402   if (ref_frame_flag == VP9_LAST_FLAG)
   2403     ref_frame = LAST_FRAME;
   2404   else if (ref_frame_flag == VP9_GOLD_FLAG)
   2405     ref_frame = GOLDEN_FRAME;
   2406   else if (ref_frame_flag == VP9_ALT_FLAG)
   2407     ref_frame = ALTREF_FRAME;
   2408 
   2409   return ref_frame == NONE ? NULL : get_ref_frame_buffer(cpi, ref_frame);
   2410 }
   2411 
   2412 int vp9_copy_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag,
   2413                            YV12_BUFFER_CONFIG *sd) {
   2414   YV12_BUFFER_CONFIG *cfg = get_vp9_ref_frame_buffer(cpi, ref_frame_flag);
   2415   if (cfg) {
   2416     vp8_yv12_copy_frame(cfg, sd);
   2417     return 0;
   2418   } else {
   2419     return -1;
   2420   }
   2421 }
   2422 
   2423 int vp9_set_reference_enc(VP9_COMP *cpi, VP9_REFFRAME ref_frame_flag,
   2424                           YV12_BUFFER_CONFIG *sd) {
   2425   YV12_BUFFER_CONFIG *cfg = get_vp9_ref_frame_buffer(cpi, ref_frame_flag);
   2426   if (cfg) {
   2427     vp8_yv12_copy_frame(sd, cfg);
   2428     return 0;
   2429   } else {
   2430     return -1;
   2431   }
   2432 }
   2433 
   2434 int vp9_update_entropy(VP9_COMP * cpi, int update) {
   2435   cpi->ext_refresh_frame_context = update;
   2436   cpi->ext_refresh_frame_context_pending = 1;
   2437   return 0;
   2438 }
   2439 
   2440 #if defined(OUTPUT_YUV_DENOISED) || defined(OUTPUT_YUV_SKINMAP)
   2441 // The denoiser buffer is allocated as a YUV 440 buffer. This function writes it
   2442 // as YUV 420. We simply use the top-left pixels of the UV buffers, since we do
   2443 // not denoise the UV channels at this time. If ever we implement UV channel
   2444 // denoising we will have to modify this.
   2445 void vp9_write_yuv_frame_420(YV12_BUFFER_CONFIG *s, FILE *f) {
   2446   uint8_t *src = s->y_buffer;
   2447   int h = s->y_height;
   2448 
   2449   do {
   2450     fwrite(src, s->y_width, 1, f);
   2451     src += s->y_stride;
   2452   } while (--h);
   2453 
   2454   src = s->u_buffer;
   2455   h = s->uv_height;
   2456 
   2457   do {
   2458     fwrite(src, s->uv_width, 1, f);
   2459     src += s->uv_stride;
   2460   } while (--h);
   2461 
   2462   src = s->v_buffer;
   2463   h = s->uv_height;
   2464 
   2465   do {
   2466     fwrite(src, s->uv_width, 1, f);
   2467     src += s->uv_stride;
   2468   } while (--h);
   2469 }
   2470 #endif
   2471 
   2472 #ifdef OUTPUT_YUV_REC
   2473 void vp9_write_yuv_rec_frame(VP9_COMMON *cm) {
   2474   YV12_BUFFER_CONFIG *s = cm->frame_to_show;
   2475   uint8_t *src = s->y_buffer;
   2476   int h = cm->height;
   2477 
   2478 #if CONFIG_VP9_HIGHBITDEPTH
   2479   if (s->flags & YV12_FLAG_HIGHBITDEPTH) {
   2480     uint16_t *src16 = CONVERT_TO_SHORTPTR(s->y_buffer);
   2481 
   2482     do {
   2483       fwrite(src16, s->y_width, 2,  yuv_rec_file);
   2484       src16 += s->y_stride;
   2485     } while (--h);
   2486 
   2487     src16 = CONVERT_TO_SHORTPTR(s->u_buffer);
   2488     h = s->uv_height;
   2489 
   2490     do {
   2491       fwrite(src16, s->uv_width, 2,  yuv_rec_file);
   2492       src16 += s->uv_stride;
   2493     } while (--h);
   2494 
   2495     src16 = CONVERT_TO_SHORTPTR(s->v_buffer);
   2496     h = s->uv_height;
   2497 
   2498     do {
   2499       fwrite(src16, s->uv_width, 2, yuv_rec_file);
   2500       src16 += s->uv_stride;
   2501     } while (--h);
   2502 
   2503     fflush(yuv_rec_file);
   2504     return;
   2505   }
   2506 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2507 
   2508   do {
   2509     fwrite(src, s->y_width, 1,  yuv_rec_file);
   2510     src += s->y_stride;
   2511   } while (--h);
   2512 
   2513   src = s->u_buffer;
   2514   h = s->uv_height;
   2515 
   2516   do {
   2517     fwrite(src, s->uv_width, 1,  yuv_rec_file);
   2518     src += s->uv_stride;
   2519   } while (--h);
   2520 
   2521   src = s->v_buffer;
   2522   h = s->uv_height;
   2523 
   2524   do {
   2525     fwrite(src, s->uv_width, 1, yuv_rec_file);
   2526     src += s->uv_stride;
   2527   } while (--h);
   2528 
   2529   fflush(yuv_rec_file);
   2530 }
   2531 #endif
   2532 
   2533 #if CONFIG_VP9_HIGHBITDEPTH
   2534 static void scale_and_extend_frame_nonnormative(const YV12_BUFFER_CONFIG *src,
   2535                                                 YV12_BUFFER_CONFIG *dst,
   2536                                                 int bd) {
   2537 #else
   2538 static void scale_and_extend_frame_nonnormative(const YV12_BUFFER_CONFIG *src,
   2539                                                 YV12_BUFFER_CONFIG *dst) {
   2540 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2541   // TODO(dkovalev): replace YV12_BUFFER_CONFIG with vpx_image_t
   2542   int i;
   2543   const uint8_t *const srcs[3] = {src->y_buffer, src->u_buffer, src->v_buffer};
   2544   const int src_strides[3] = {src->y_stride, src->uv_stride, src->uv_stride};
   2545   const int src_widths[3] = {src->y_crop_width, src->uv_crop_width,
   2546                              src->uv_crop_width };
   2547   const int src_heights[3] = {src->y_crop_height, src->uv_crop_height,
   2548                               src->uv_crop_height};
   2549   uint8_t *const dsts[3] = {dst->y_buffer, dst->u_buffer, dst->v_buffer};
   2550   const int dst_strides[3] = {dst->y_stride, dst->uv_stride, dst->uv_stride};
   2551   const int dst_widths[3] = {dst->y_crop_width, dst->uv_crop_width,
   2552                              dst->uv_crop_width};
   2553   const int dst_heights[3] = {dst->y_crop_height, dst->uv_crop_height,
   2554                               dst->uv_crop_height};
   2555 
   2556   for (i = 0; i < MAX_MB_PLANE; ++i) {
   2557 #if CONFIG_VP9_HIGHBITDEPTH
   2558     if (src->flags & YV12_FLAG_HIGHBITDEPTH) {
   2559       vp9_highbd_resize_plane(srcs[i], src_heights[i], src_widths[i],
   2560                               src_strides[i], dsts[i], dst_heights[i],
   2561                               dst_widths[i], dst_strides[i], bd);
   2562     } else {
   2563       vp9_resize_plane(srcs[i], src_heights[i], src_widths[i], src_strides[i],
   2564                        dsts[i], dst_heights[i], dst_widths[i], dst_strides[i]);
   2565     }
   2566 #else
   2567     vp9_resize_plane(srcs[i], src_heights[i], src_widths[i], src_strides[i],
   2568                      dsts[i], dst_heights[i], dst_widths[i], dst_strides[i]);
   2569 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2570   }
   2571   vpx_extend_frame_borders(dst);
   2572 }
   2573 
   2574 #if CONFIG_VP9_HIGHBITDEPTH
   2575 static void scale_and_extend_frame(const YV12_BUFFER_CONFIG *src,
   2576                                    YV12_BUFFER_CONFIG *dst, int bd) {
   2577 #else
   2578 static void scale_and_extend_frame(const YV12_BUFFER_CONFIG *src,
   2579                                    YV12_BUFFER_CONFIG *dst) {
   2580 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2581   const int src_w = src->y_crop_width;
   2582   const int src_h = src->y_crop_height;
   2583   const int dst_w = dst->y_crop_width;
   2584   const int dst_h = dst->y_crop_height;
   2585   const uint8_t *const srcs[3] = {src->y_buffer, src->u_buffer, src->v_buffer};
   2586   const int src_strides[3] = {src->y_stride, src->uv_stride, src->uv_stride};
   2587   uint8_t *const dsts[3] = {dst->y_buffer, dst->u_buffer, dst->v_buffer};
   2588   const int dst_strides[3] = {dst->y_stride, dst->uv_stride, dst->uv_stride};
   2589   const InterpKernel *const kernel = vp9_filter_kernels[EIGHTTAP];
   2590   int x, y, i;
   2591 
   2592   for (y = 0; y < dst_h; y += 16) {
   2593     for (x = 0; x < dst_w; x += 16) {
   2594       for (i = 0; i < MAX_MB_PLANE; ++i) {
   2595         const int factor = (i == 0 || i == 3 ? 1 : 2);
   2596         const int x_q4 = x * (16 / factor) * src_w / dst_w;
   2597         const int y_q4 = y * (16 / factor) * src_h / dst_h;
   2598         const int src_stride = src_strides[i];
   2599         const int dst_stride = dst_strides[i];
   2600         const uint8_t *src_ptr = srcs[i] + (y / factor) * src_h / dst_h *
   2601                                      src_stride + (x / factor) * src_w / dst_w;
   2602         uint8_t *dst_ptr = dsts[i] + (y / factor) * dst_stride + (x / factor);
   2603 
   2604 #if CONFIG_VP9_HIGHBITDEPTH
   2605         if (src->flags & YV12_FLAG_HIGHBITDEPTH) {
   2606           vpx_highbd_convolve8(src_ptr, src_stride, dst_ptr, dst_stride,
   2607                                kernel[x_q4 & 0xf], 16 * src_w / dst_w,
   2608                                kernel[y_q4 & 0xf], 16 * src_h / dst_h,
   2609                                16 / factor, 16 / factor, bd);
   2610         } else {
   2611           vpx_scaled_2d(src_ptr, src_stride, dst_ptr, dst_stride,
   2612                         kernel[x_q4 & 0xf], 16 * src_w / dst_w,
   2613                         kernel[y_q4 & 0xf], 16 * src_h / dst_h,
   2614                         16 / factor, 16 / factor);
   2615         }
   2616 #else
   2617         vpx_scaled_2d(src_ptr, src_stride, dst_ptr, dst_stride,
   2618                       kernel[x_q4 & 0xf], 16 * src_w / dst_w,
   2619                       kernel[y_q4 & 0xf], 16 * src_h / dst_h,
   2620                       16 / factor, 16 / factor);
   2621 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2622       }
   2623     }
   2624   }
   2625 
   2626   vpx_extend_frame_borders(dst);
   2627 }
   2628 
   2629 static int scale_down(VP9_COMP *cpi, int q) {
   2630   RATE_CONTROL *const rc = &cpi->rc;
   2631   GF_GROUP *const gf_group = &cpi->twopass.gf_group;
   2632   int scale = 0;
   2633   assert(frame_is_kf_gf_arf(cpi));
   2634 
   2635   if (rc->frame_size_selector == UNSCALED &&
   2636       q >= rc->rf_level_maxq[gf_group->rf_level[gf_group->index]]) {
   2637     const int max_size_thresh = (int)(rate_thresh_mult[SCALE_STEP1]
   2638         * VPXMAX(rc->this_frame_target, rc->avg_frame_bandwidth));
   2639     scale = rc->projected_frame_size > max_size_thresh ? 1 : 0;
   2640   }
   2641   return scale;
   2642 }
   2643 
   2644 // Function to test for conditions that indicate we should loop
   2645 // back and recode a frame.
   2646 static int recode_loop_test(VP9_COMP *cpi,
   2647                             int high_limit, int low_limit,
   2648                             int q, int maxq, int minq) {
   2649   const RATE_CONTROL *const rc = &cpi->rc;
   2650   const VP9EncoderConfig *const oxcf = &cpi->oxcf;
   2651   const int frame_is_kfgfarf = frame_is_kf_gf_arf(cpi);
   2652   int force_recode = 0;
   2653 
   2654   if ((rc->projected_frame_size >= rc->max_frame_bandwidth) ||
   2655       (cpi->sf.recode_loop == ALLOW_RECODE) ||
   2656       (frame_is_kfgfarf &&
   2657        (cpi->sf.recode_loop == ALLOW_RECODE_KFARFGF))) {
   2658     if (frame_is_kfgfarf &&
   2659         (oxcf->resize_mode == RESIZE_DYNAMIC) &&
   2660         scale_down(cpi, q)) {
   2661         // Code this group at a lower resolution.
   2662         cpi->resize_pending = 1;
   2663         return 1;
   2664     }
   2665 
   2666     // TODO(agrange) high_limit could be greater than the scale-down threshold.
   2667     if ((rc->projected_frame_size > high_limit && q < maxq) ||
   2668         (rc->projected_frame_size < low_limit && q > minq)) {
   2669       force_recode = 1;
   2670     } else if (cpi->oxcf.rc_mode == VPX_CQ) {
   2671       // Deal with frame undershoot and whether or not we are
   2672       // below the automatically set cq level.
   2673       if (q > oxcf->cq_level &&
   2674           rc->projected_frame_size < ((rc->this_frame_target * 7) >> 3)) {
   2675         force_recode = 1;
   2676       }
   2677     }
   2678   }
   2679   return force_recode;
   2680 }
   2681 
   2682 void vp9_update_reference_frames(VP9_COMP *cpi) {
   2683   VP9_COMMON * const cm = &cpi->common;
   2684   BufferPool *const pool = cm->buffer_pool;
   2685 
   2686   // At this point the new frame has been encoded.
   2687   // If any buffer copy / swapping is signaled it should be done here.
   2688   if (cm->frame_type == KEY_FRAME) {
   2689     ref_cnt_fb(pool->frame_bufs,
   2690                &cm->ref_frame_map[cpi->gld_fb_idx], cm->new_fb_idx);
   2691     ref_cnt_fb(pool->frame_bufs,
   2692                &cm->ref_frame_map[cpi->alt_fb_idx], cm->new_fb_idx);
   2693   } else if (vp9_preserve_existing_gf(cpi)) {
   2694     // We have decided to preserve the previously existing golden frame as our
   2695     // new ARF frame. However, in the short term in function
   2696     // vp9_bitstream.c::get_refresh_mask() we left it in the GF slot and, if
   2697     // we're updating the GF with the current decoded frame, we save it to the
   2698     // ARF slot instead.
   2699     // We now have to update the ARF with the current frame and swap gld_fb_idx
   2700     // and alt_fb_idx so that, overall, we've stored the old GF in the new ARF
   2701     // slot and, if we're updating the GF, the current frame becomes the new GF.
   2702     int tmp;
   2703 
   2704     ref_cnt_fb(pool->frame_bufs,
   2705                &cm->ref_frame_map[cpi->alt_fb_idx], cm->new_fb_idx);
   2706 
   2707     tmp = cpi->alt_fb_idx;
   2708     cpi->alt_fb_idx = cpi->gld_fb_idx;
   2709     cpi->gld_fb_idx = tmp;
   2710 
   2711     if (is_two_pass_svc(cpi)) {
   2712       cpi->svc.layer_context[0].gold_ref_idx = cpi->gld_fb_idx;
   2713       cpi->svc.layer_context[0].alt_ref_idx = cpi->alt_fb_idx;
   2714     }
   2715   } else { /* For non key/golden frames */
   2716     if (cpi->refresh_alt_ref_frame) {
   2717       int arf_idx = cpi->alt_fb_idx;
   2718       if ((cpi->oxcf.pass == 2) && cpi->multi_arf_allowed) {
   2719         const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
   2720         arf_idx = gf_group->arf_update_idx[gf_group->index];
   2721       }
   2722 
   2723       ref_cnt_fb(pool->frame_bufs,
   2724                  &cm->ref_frame_map[arf_idx], cm->new_fb_idx);
   2725       memcpy(cpi->interp_filter_selected[ALTREF_FRAME],
   2726              cpi->interp_filter_selected[0],
   2727              sizeof(cpi->interp_filter_selected[0]));
   2728     }
   2729 
   2730     if (cpi->refresh_golden_frame) {
   2731       ref_cnt_fb(pool->frame_bufs,
   2732                  &cm->ref_frame_map[cpi->gld_fb_idx], cm->new_fb_idx);
   2733       if (!cpi->rc.is_src_frame_alt_ref)
   2734         memcpy(cpi->interp_filter_selected[GOLDEN_FRAME],
   2735                cpi->interp_filter_selected[0],
   2736                sizeof(cpi->interp_filter_selected[0]));
   2737       else
   2738         memcpy(cpi->interp_filter_selected[GOLDEN_FRAME],
   2739                cpi->interp_filter_selected[ALTREF_FRAME],
   2740                sizeof(cpi->interp_filter_selected[ALTREF_FRAME]));
   2741     }
   2742   }
   2743 
   2744   if (cpi->refresh_last_frame) {
   2745     ref_cnt_fb(pool->frame_bufs,
   2746                &cm->ref_frame_map[cpi->lst_fb_idx], cm->new_fb_idx);
   2747     if (!cpi->rc.is_src_frame_alt_ref)
   2748       memcpy(cpi->interp_filter_selected[LAST_FRAME],
   2749              cpi->interp_filter_selected[0],
   2750              sizeof(cpi->interp_filter_selected[0]));
   2751   }
   2752 #if CONFIG_VP9_TEMPORAL_DENOISING
   2753   if (cpi->oxcf.noise_sensitivity > 0) {
   2754     vp9_denoiser_update_frame_info(&cpi->denoiser,
   2755                                    *cpi->Source,
   2756                                    cpi->common.frame_type,
   2757                                    cpi->refresh_alt_ref_frame,
   2758                                    cpi->refresh_golden_frame,
   2759                                    cpi->refresh_last_frame,
   2760                                    cpi->resize_pending);
   2761   }
   2762 #endif
   2763 }
   2764 
   2765 static void loopfilter_frame(VP9_COMP *cpi, VP9_COMMON *cm) {
   2766   MACROBLOCKD *xd = &cpi->td.mb.e_mbd;
   2767   struct loopfilter *lf = &cm->lf;
   2768 
   2769   if (xd->lossless) {
   2770       lf->filter_level = 0;
   2771   } else {
   2772     struct vpx_usec_timer timer;
   2773 
   2774     vpx_clear_system_state();
   2775 
   2776     vpx_usec_timer_start(&timer);
   2777 
   2778     vp9_pick_filter_level(cpi->Source, cpi, cpi->sf.lpf_pick);
   2779 
   2780     vpx_usec_timer_mark(&timer);
   2781     cpi->time_pick_lpf += vpx_usec_timer_elapsed(&timer);
   2782   }
   2783 
   2784   if (lf->filter_level > 0) {
   2785     vp9_build_mask_frame(cm, lf->filter_level, 0);
   2786 
   2787     if (cpi->num_workers > 1)
   2788       vp9_loop_filter_frame_mt(cm->frame_to_show, cm, xd->plane,
   2789                                lf->filter_level, 0, 0,
   2790                                cpi->workers, cpi->num_workers,
   2791                                &cpi->lf_row_sync);
   2792     else
   2793       vp9_loop_filter_frame(cm->frame_to_show, cm, xd, lf->filter_level, 0, 0);
   2794   }
   2795 
   2796   vpx_extend_frame_inner_borders(cm->frame_to_show);
   2797 }
   2798 
   2799 static INLINE void alloc_frame_mvs(const VP9_COMMON *cm,
   2800                                    int buffer_idx) {
   2801   RefCntBuffer *const new_fb_ptr = &cm->buffer_pool->frame_bufs[buffer_idx];
   2802   if (new_fb_ptr->mvs == NULL ||
   2803       new_fb_ptr->mi_rows < cm->mi_rows ||
   2804       new_fb_ptr->mi_cols < cm->mi_cols) {
   2805     vpx_free(new_fb_ptr->mvs);
   2806     new_fb_ptr->mvs =
   2807       (MV_REF *)vpx_calloc(cm->mi_rows * cm->mi_cols,
   2808                            sizeof(*new_fb_ptr->mvs));
   2809     new_fb_ptr->mi_rows = cm->mi_rows;
   2810     new_fb_ptr->mi_cols = cm->mi_cols;
   2811   }
   2812 }
   2813 
   2814 void vp9_scale_references(VP9_COMP *cpi) {
   2815   VP9_COMMON *cm = &cpi->common;
   2816   MV_REFERENCE_FRAME ref_frame;
   2817   const VP9_REFFRAME ref_mask[3] = {VP9_LAST_FLAG, VP9_GOLD_FLAG, VP9_ALT_FLAG};
   2818 
   2819   for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
   2820     // Need to convert from VP9_REFFRAME to index into ref_mask (subtract 1).
   2821     if (cpi->ref_frame_flags & ref_mask[ref_frame - 1]) {
   2822       BufferPool *const pool = cm->buffer_pool;
   2823       const YV12_BUFFER_CONFIG *const ref = get_ref_frame_buffer(cpi,
   2824                                                                  ref_frame);
   2825 
   2826       if (ref == NULL) {
   2827         cpi->scaled_ref_idx[ref_frame - 1] = INVALID_IDX;
   2828         continue;
   2829       }
   2830 
   2831 #if CONFIG_VP9_HIGHBITDEPTH
   2832       if (ref->y_crop_width != cm->width || ref->y_crop_height != cm->height) {
   2833         RefCntBuffer *new_fb_ptr = NULL;
   2834         int force_scaling = 0;
   2835         int new_fb = cpi->scaled_ref_idx[ref_frame - 1];
   2836         if (new_fb == INVALID_IDX) {
   2837           new_fb = get_free_fb(cm);
   2838           force_scaling = 1;
   2839         }
   2840         if (new_fb == INVALID_IDX)
   2841           return;
   2842         new_fb_ptr = &pool->frame_bufs[new_fb];
   2843         if (force_scaling ||
   2844             new_fb_ptr->buf.y_crop_width != cm->width ||
   2845             new_fb_ptr->buf.y_crop_height != cm->height) {
   2846           vpx_realloc_frame_buffer(&new_fb_ptr->buf,
   2847                                    cm->width, cm->height,
   2848                                    cm->subsampling_x, cm->subsampling_y,
   2849                                    cm->use_highbitdepth,
   2850                                    VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
   2851                                    NULL, NULL, NULL);
   2852           scale_and_extend_frame(ref, &new_fb_ptr->buf, (int)cm->bit_depth);
   2853           cpi->scaled_ref_idx[ref_frame - 1] = new_fb;
   2854           alloc_frame_mvs(cm, new_fb);
   2855         }
   2856 #else
   2857       if (ref->y_crop_width != cm->width || ref->y_crop_height != cm->height) {
   2858         RefCntBuffer *new_fb_ptr = NULL;
   2859         int force_scaling = 0;
   2860         int new_fb = cpi->scaled_ref_idx[ref_frame - 1];
   2861         if (new_fb == INVALID_IDX) {
   2862           new_fb = get_free_fb(cm);
   2863           force_scaling = 1;
   2864         }
   2865         if (new_fb == INVALID_IDX)
   2866           return;
   2867         new_fb_ptr = &pool->frame_bufs[new_fb];
   2868         if (force_scaling ||
   2869             new_fb_ptr->buf.y_crop_width != cm->width ||
   2870             new_fb_ptr->buf.y_crop_height != cm->height) {
   2871           vpx_realloc_frame_buffer(&new_fb_ptr->buf,
   2872                                    cm->width, cm->height,
   2873                                    cm->subsampling_x, cm->subsampling_y,
   2874                                    VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
   2875                                    NULL, NULL, NULL);
   2876           scale_and_extend_frame(ref, &new_fb_ptr->buf);
   2877           cpi->scaled_ref_idx[ref_frame - 1] = new_fb;
   2878           alloc_frame_mvs(cm, new_fb);
   2879         }
   2880 #endif  // CONFIG_VP9_HIGHBITDEPTH
   2881       } else {
   2882         const int buf_idx = get_ref_frame_buf_idx(cpi, ref_frame);
   2883         RefCntBuffer *const buf = &pool->frame_bufs[buf_idx];
   2884         buf->buf.y_crop_width = ref->y_crop_width;
   2885         buf->buf.y_crop_height = ref->y_crop_height;
   2886         cpi->scaled_ref_idx[ref_frame - 1] = buf_idx;
   2887         ++buf->ref_count;
   2888       }
   2889     } else {
   2890       if (cpi->oxcf.pass != 0 || cpi->use_svc)
   2891         cpi->scaled_ref_idx[ref_frame - 1] = INVALID_IDX;
   2892     }
   2893   }
   2894 }
   2895 
   2896 static void release_scaled_references(VP9_COMP *cpi) {
   2897   VP9_COMMON *cm = &cpi->common;
   2898   int i;
   2899   if (cpi->oxcf.pass == 0 && !cpi->use_svc) {
   2900     // Only release scaled references under certain conditions:
   2901     // if reference will be updated, or if scaled reference has same resolution.
   2902     int refresh[3];
   2903     refresh[0] = (cpi->refresh_last_frame) ? 1 : 0;
   2904     refresh[1] = (cpi->refresh_golden_frame) ? 1 : 0;
   2905     refresh[2] = (cpi->refresh_alt_ref_frame) ? 1 : 0;
   2906     for (i = LAST_FRAME; i <= ALTREF_FRAME; ++i) {
   2907       const int idx = cpi->scaled_ref_idx[i - 1];
   2908       RefCntBuffer *const buf = idx != INVALID_IDX ?
   2909           &cm->buffer_pool->frame_bufs[idx] : NULL;
   2910       const YV12_BUFFER_CONFIG *const ref = get_ref_frame_buffer(cpi, i);
   2911       if (buf != NULL &&
   2912           (refresh[i - 1] ||
   2913           (buf->buf.y_crop_width == ref->y_crop_width &&
   2914            buf->buf.y_crop_height == ref->y_crop_height))) {
   2915         --buf->ref_count;
   2916         cpi->scaled_ref_idx[i -1] = INVALID_IDX;
   2917       }
   2918     }
   2919   } else {
   2920     for (i = 0; i < MAX_REF_FRAMES; ++i) {
   2921       const int idx = cpi->scaled_ref_idx[i];
   2922       RefCntBuffer *const buf = idx != INVALID_IDX ?
   2923           &cm->buffer_pool->frame_bufs[idx] : NULL;
   2924       if (buf != NULL) {
   2925         --buf->ref_count;
   2926         cpi->scaled_ref_idx[i] = INVALID_IDX;
   2927       }
   2928     }
   2929   }
   2930 }
   2931 
   2932 static void full_to_model_count(unsigned int *model_count,
   2933                                 unsigned int *full_count) {
   2934   int n;
   2935   model_count[ZERO_TOKEN] = full_count[ZERO_TOKEN];
   2936   model_count[ONE_TOKEN] = full_count[ONE_TOKEN];
   2937   model_count[TWO_TOKEN] = full_count[TWO_TOKEN];
   2938   for (n = THREE_TOKEN; n < EOB_TOKEN; ++n)
   2939     model_count[TWO_TOKEN] += full_count[n];
   2940   model_count[EOB_MODEL_TOKEN] = full_count[EOB_TOKEN];
   2941 }
   2942 
   2943 static void full_to_model_counts(vp9_coeff_count_model *model_count,
   2944                                  vp9_coeff_count *full_count) {
   2945   int i, j, k, l;
   2946 
   2947   for (i = 0; i < PLANE_TYPES; ++i)
   2948     for (j = 0; j < REF_TYPES; ++j)
   2949       for (k = 0; k < COEF_BANDS; ++k)
   2950         for (l = 0; l < BAND_COEFF_CONTEXTS(k); ++l)
   2951           full_to_model_count(model_count[i][j][k][l], full_count[i][j][k][l]);
   2952 }
   2953 
   2954 #if 0 && CONFIG_INTERNAL_STATS
   2955 static void output_frame_level_debug_stats(VP9_COMP *cpi) {
   2956   VP9_COMMON *const cm = &cpi->common;
   2957   FILE *const f = fopen("tmp.stt", cm->current_video_frame ? "a" : "w");
   2958   int64_t recon_err;
   2959 
   2960   vpx_clear_system_state();
   2961 
   2962   recon_err = vp9_get_y_sse(cpi->Source, get_frame_new_buffer(cm));
   2963 
   2964   if (cpi->twopass.total_left_stats.coded_error != 0.0)
   2965     fprintf(f, "%10u %dx%d %d %d %10d %10d %10d %10d"
   2966        "%10"PRId64" %10"PRId64" %5d %5d %10"PRId64" "
   2967        "%10"PRId64" %10"PRId64" %10d "
   2968        "%7.2lf %7.2lf %7.2lf %7.2lf %7.2lf"
   2969         "%6d %6d %5d %5d %5d "
   2970         "%10"PRId64" %10.3lf"
   2971         "%10lf %8u %10"PRId64" %10d %10d %10d\n",
   2972         cpi->common.current_video_frame,
   2973         cm->width, cm->height,
   2974         cpi->rc.source_alt_ref_pending,
   2975         cpi->rc.source_alt_ref_active,
   2976         cpi->rc.this_frame_target,
   2977         cpi->rc.projected_frame_size,
   2978         cpi->rc.projected_frame_size / cpi->common.MBs,
   2979         (cpi->rc.projected_frame_size - cpi->rc.this_frame_target),
   2980         cpi->rc.vbr_bits_off_target,
   2981         cpi->rc.vbr_bits_off_target_fast,
   2982         cpi->twopass.extend_minq,
   2983         cpi->twopass.extend_minq_fast,
   2984         cpi->rc.total_target_vs_actual,
   2985         (cpi->rc.starting_buffer_level - cpi->rc.bits_off_target),
   2986         cpi->rc.total_actual_bits, cm->base_qindex,
   2987         vp9_convert_qindex_to_q(cm->base_qindex, cm->bit_depth),
   2988         (double)vp9_dc_quant(cm->base_qindex, 0, cm->bit_depth) / 4.0,
   2989         vp9_convert_qindex_to_q(cpi->twopass.active_worst_quality,
   2990                                 cm->bit_depth),
   2991         cpi->rc.avg_q,
   2992         vp9_convert_qindex_to_q(cpi->oxcf.cq_level, cm->bit_depth),
   2993         cpi->refresh_last_frame, cpi->refresh_golden_frame,
   2994         cpi->refresh_alt_ref_frame, cm->frame_type, cpi->rc.gfu_boost,
   2995         cpi->twopass.bits_left,
   2996         cpi->twopass.total_left_stats.coded_error,
   2997         cpi->twopass.bits_left /
   2998             (1 + cpi->twopass.total_left_stats.coded_error),
   2999         cpi->tot_recode_hits, recon_err, cpi->rc.kf_boost,
   3000         cpi->twopass.kf_zeromotion_pct,
   3001         cpi->twopass.fr_content_type);
   3002 
   3003   fclose(f);
   3004 
   3005   if (0) {
   3006     FILE *const fmodes = fopen("Modes.stt", "a");
   3007     int i;
   3008 
   3009     fprintf(fmodes, "%6d:%1d:%1d:%1d ", cpi->common.current_video_frame,
   3010             cm->frame_type, cpi->refresh_golden_frame,
   3011             cpi->refresh_alt_ref_frame);
   3012 
   3013     for (i = 0; i < MAX_MODES; ++i)
   3014       fprintf(fmodes, "%5d ", cpi->mode_chosen_counts[i]);
   3015 
   3016     fprintf(fmodes, "\n");
   3017 
   3018     fclose(fmodes);
   3019   }
   3020 }
   3021 #endif
   3022 
   3023 static void set_mv_search_params(VP9_COMP *cpi) {
   3024   const VP9_COMMON *const cm = &cpi->common;
   3025   const unsigned int max_mv_def = VPXMIN(cm->width, cm->height);
   3026 
   3027   // Default based on max resolution.
   3028   cpi->mv_step_param = vp9_init_search_range(max_mv_def);
   3029 
   3030   if (cpi->sf.mv.auto_mv_step_size) {
   3031     if (frame_is_intra_only(cm)) {
   3032       // Initialize max_mv_magnitude for use in the first INTER frame
   3033       // after a key/intra-only frame.
   3034       cpi->max_mv_magnitude = max_mv_def;
   3035     } else {
   3036       if (cm->show_frame) {
   3037         // Allow mv_steps to correspond to twice the max mv magnitude found
   3038         // in the previous frame, capped by the default max_mv_magnitude based
   3039         // on resolution.
   3040         cpi->mv_step_param = vp9_init_search_range(
   3041             VPXMIN(max_mv_def, 2 * cpi->max_mv_magnitude));
   3042       }
   3043       cpi->max_mv_magnitude = 0;
   3044     }
   3045   }
   3046 }
   3047 
   3048 static void set_size_independent_vars(VP9_COMP *cpi) {
   3049   vp9_set_speed_features_framesize_independent(cpi);
   3050   vp9_set_rd_speed_thresholds(cpi);
   3051   vp9_set_rd_speed_thresholds_sub8x8(cpi);
   3052   cpi->common.interp_filter = cpi->sf.default_interp_filter;
   3053 }
   3054 
   3055 static void set_size_dependent_vars(VP9_COMP *cpi, int *q,
   3056                                     int *bottom_index, int *top_index) {
   3057   VP9_COMMON *const cm = &cpi->common;
   3058   const VP9EncoderConfig *const oxcf = &cpi->oxcf;
   3059 
   3060   // Setup variables that depend on the dimensions of the frame.
   3061   vp9_set_speed_features_framesize_dependent(cpi);
   3062 
   3063   // Decide q and q bounds.
   3064   *q = vp9_rc_pick_q_and_bounds(cpi, bottom_index, top_index);
   3065 
   3066   if (!frame_is_intra_only(cm)) {
   3067     vp9_set_high_precision_mv(cpi, (*q) < HIGH_PRECISION_MV_QTHRESH);
   3068   }
   3069 
   3070   // Configure experimental use of segmentation for enhanced coding of
   3071   // static regions if indicated.
   3072   // Only allowed in the second pass of a two pass encode, as it requires
   3073   // lagged coding, and if the relevant speed feature flag is set.
   3074   if (oxcf->pass == 2 && cpi->sf.static_segmentation)
   3075     configure_static_seg_features(cpi);
   3076 
   3077 #if CONFIG_VP9_POSTPROC
   3078   if (oxcf->noise_sensitivity > 0) {
   3079     int l = 0;
   3080     switch (oxcf->noise_sensitivity) {
   3081       case 1:
   3082         l = 20;
   3083         break;
   3084       case 2:
   3085         l = 40;
   3086         break;
   3087       case 3:
   3088         l = 60;
   3089         break;
   3090       case 4:
   3091       case 5:
   3092         l = 100;
   3093         break;
   3094       case 6:
   3095         l = 150;
   3096         break;
   3097     }
   3098     vp9_denoise(cpi->Source, cpi->Source, l);
   3099   }
   3100 #endif  // CONFIG_VP9_POSTPROC
   3101 }
   3102 
   3103 #if CONFIG_VP9_TEMPORAL_DENOISING
   3104 static void setup_denoiser_buffer(VP9_COMP *cpi) {
   3105   VP9_COMMON *const cm = &cpi->common;
   3106   if (cpi->oxcf.noise_sensitivity > 0 &&
   3107       !cpi->denoiser.frame_buffer_initialized) {
   3108     vp9_denoiser_alloc(&(cpi->denoiser), cm->width, cm->height,
   3109                        cm->subsampling_x, cm->subsampling_y,
   3110 #if CONFIG_VP9_HIGHBITDEPTH
   3111                        cm->use_highbitdepth,
   3112 #endif
   3113                        VP9_ENC_BORDER_IN_PIXELS);
   3114   }
   3115 }
   3116 #endif
   3117 
   3118 static void init_motion_estimation(VP9_COMP *cpi) {
   3119   int y_stride = cpi->scaled_source.y_stride;
   3120 
   3121   if (cpi->sf.mv.search_method == NSTEP) {
   3122     vp9_init3smotion_compensation(&cpi->ss_cfg, y_stride);
   3123   } else if (cpi->sf.mv.search_method == DIAMOND) {
   3124     vp9_init_dsmotion_compensation(&cpi->ss_cfg, y_stride);
   3125   }
   3126 }
   3127 
   3128 static void set_frame_size(VP9_COMP *cpi) {
   3129   int ref_frame;
   3130   VP9_COMMON *const cm = &cpi->common;
   3131   VP9EncoderConfig *const oxcf = &cpi->oxcf;
   3132   MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
   3133 
   3134   if (oxcf->pass == 2 &&
   3135       oxcf->rc_mode == VPX_VBR &&
   3136       ((oxcf->resize_mode == RESIZE_FIXED && cm->current_video_frame == 0) ||
   3137         (oxcf->resize_mode == RESIZE_DYNAMIC && cpi->resize_pending))) {
   3138     calculate_coded_size(
   3139         cpi, &oxcf->scaled_frame_width, &oxcf->scaled_frame_height);
   3140 
   3141     // There has been a change in frame size.
   3142     vp9_set_size_literal(cpi, oxcf->scaled_frame_width,
   3143                          oxcf->scaled_frame_height);
   3144   }
   3145 
   3146   if (oxcf->pass == 0 &&
   3147       oxcf->rc_mode == VPX_CBR &&
   3148       !cpi->use_svc &&
   3149       oxcf->resize_mode == RESIZE_DYNAMIC &&
   3150       cpi->resize_pending != 0) {
   3151     oxcf->scaled_frame_width =
   3152         (oxcf->width * cpi->resize_scale_num) / cpi->resize_scale_den;
   3153     oxcf->scaled_frame_height =
   3154         (oxcf->height * cpi->resize_scale_num) /cpi->resize_scale_den;
   3155     // There has been a change in frame size.
   3156     vp9_set_size_literal(cpi,
   3157                          oxcf->scaled_frame_width,
   3158                          oxcf->scaled_frame_height);
   3159 
   3160     // TODO(agrange) Scale cpi->max_mv_magnitude if frame-size has changed.
   3161     set_mv_search_params(cpi);
   3162 
   3163 #if CONFIG_VP9_TEMPORAL_DENOISING
   3164     // Reset the denoiser on the resized frame.
   3165     if (cpi->oxcf.noise_sensitivity > 0) {
   3166       vp9_denoiser_free(&(cpi->denoiser));
   3167       setup_denoiser_buffer(cpi);
   3168       // Dynamic resize is only triggered for non-SVC, so we can force
   3169       // golden frame update here as temporary fix to denoiser.
   3170       cpi->refresh_golden_frame = 1;
   3171     }
   3172 #endif
   3173   }
   3174 
   3175   if ((oxcf->pass == 2) &&
   3176       (!cpi->use_svc ||
   3177           (is_two_pass_svc(cpi) &&
   3178               cpi->svc.encode_empty_frame_state != ENCODING))) {
   3179     vp9_set_target_rate(cpi);
   3180   }
   3181 
   3182   alloc_frame_mvs(cm, cm->new_fb_idx);
   3183 
   3184   // Reset the frame pointers to the current frame size.
   3185   vpx_realloc_frame_buffer(get_frame_new_buffer(cm),
   3186                            cm->width, cm->height,
   3187                            cm->subsampling_x, cm->subsampling_y,
   3188 #if CONFIG_VP9_HIGHBITDEPTH
   3189                            cm->use_highbitdepth,
   3190 #endif
   3191                            VP9_ENC_BORDER_IN_PIXELS, cm->byte_alignment,
   3192                            NULL, NULL, NULL);
   3193 
   3194   alloc_util_frame_buffers(cpi);
   3195   init_motion_estimation(cpi);
   3196 
   3197   for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
   3198     RefBuffer *const ref_buf = &cm->frame_refs[ref_frame - 1];
   3199     const int buf_idx = get_ref_frame_buf_idx(cpi, ref_frame);
   3200 
   3201     ref_buf->idx = buf_idx;
   3202 
   3203     if (buf_idx != INVALID_IDX) {
   3204       YV12_BUFFER_CONFIG *const buf = &cm->buffer_pool->frame_bufs[buf_idx].buf;
   3205       ref_buf->buf = buf;
   3206 #if CONFIG_VP9_HIGHBITDEPTH
   3207       vp9_setup_scale_factors_for_frame(&ref_buf->sf,
   3208                                         buf->y_crop_width, buf->y_crop_height,
   3209                                         cm->width, cm->height,
   3210                                         (buf->flags & YV12_FLAG_HIGHBITDEPTH) ?
   3211                                             1 : 0);
   3212 #else
   3213       vp9_setup_scale_factors_for_frame(&ref_buf->sf,
   3214                                         buf->y_crop_width, buf->y_crop_height,
   3215                                         cm->width, cm->height);
   3216 #endif  // CONFIG_VP9_HIGHBITDEPTH
   3217       if (vp9_is_scaled(&ref_buf->sf))
   3218         vpx_extend_frame_borders(buf);
   3219     } else {
   3220       ref_buf->buf = NULL;
   3221     }
   3222   }
   3223 
   3224   set_ref_ptrs(cm, xd, LAST_FRAME, LAST_FRAME);
   3225 }
   3226 
   3227 static void encode_without_recode_loop(VP9_COMP *cpi,
   3228                                        size_t *size,
   3229                                        uint8_t *dest) {
   3230   VP9_COMMON *const cm = &cpi->common;
   3231   int q = 0, bottom_index = 0, top_index = 0;  // Dummy variables.
   3232 
   3233   vpx_clear_system_state();
   3234 
   3235   set_frame_size(cpi);
   3236 
   3237   cpi->Source = vp9_scale_if_required(cm,
   3238                                       cpi->un_scaled_source,
   3239                                       &cpi->scaled_source,
   3240                                       (cpi->oxcf.pass == 0));
   3241 
   3242   // Avoid scaling last_source unless its needed.
   3243   // Last source is currently only used for screen-content mode,
   3244   // or if partition_search_type == SOURCE_VAR_BASED_PARTITION.
   3245   if (cpi->unscaled_last_source != NULL &&
   3246       (cpi->oxcf.content == VP9E_CONTENT_SCREEN ||
   3247       cpi->sf.partition_search_type == SOURCE_VAR_BASED_PARTITION))
   3248     cpi->Last_Source = vp9_scale_if_required(cm,
   3249                                              cpi->unscaled_last_source,
   3250                                              &cpi->scaled_last_source,
   3251                                              (cpi->oxcf.pass == 0));
   3252 
   3253 #if CONFIG_VP9_TEMPORAL_DENOISING
   3254   if (cpi->oxcf.noise_sensitivity > 0 &&
   3255       cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
   3256     vp9_denoiser_update_noise_estimate(cpi);
   3257   }
   3258 #endif
   3259 
   3260   if (cpi->oxcf.pass == 0 &&
   3261       cpi->oxcf.rc_mode == VPX_CBR &&
   3262       cpi->resize_state == 0 &&
   3263       cm->frame_type != KEY_FRAME &&
   3264       cpi->oxcf.content == VP9E_CONTENT_SCREEN)
   3265     vp9_avg_source_sad(cpi);
   3266 
   3267   if (frame_is_intra_only(cm) == 0) {
   3268     vp9_scale_references(cpi);
   3269   }
   3270 
   3271   set_size_independent_vars(cpi);
   3272   set_size_dependent_vars(cpi, &q, &bottom_index, &top_index);
   3273 
   3274   vp9_set_quantizer(cm, q);
   3275   vp9_set_variance_partition_thresholds(cpi, q);
   3276 
   3277   setup_frame(cpi);
   3278 
   3279   suppress_active_map(cpi);
   3280   // Variance adaptive and in frame q adjustment experiments are mutually
   3281   // exclusive.
   3282   if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
   3283     vp9_vaq_frame_setup(cpi);
   3284   } else if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
   3285     vp9_setup_in_frame_q_adj(cpi);
   3286   } else if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
   3287     vp9_cyclic_refresh_setup(cpi);
   3288   }
   3289   apply_active_map(cpi);
   3290 
   3291   // transform / motion compensation build reconstruction frame
   3292   vp9_encode_frame(cpi);
   3293 
   3294   // Check if we should drop this frame because of high overshoot.
   3295   // Only for frames where high temporal-source sad is detected.
   3296   if (cpi->oxcf.pass == 0 &&
   3297       cpi->oxcf.rc_mode == VPX_CBR &&
   3298       cpi->resize_state == 0 &&
   3299       cm->frame_type != KEY_FRAME &&
   3300       cpi->oxcf.content == VP9E_CONTENT_SCREEN &&
   3301       cpi->rc.high_source_sad == 1) {
   3302     int frame_size = 0;
   3303     // Get an estimate of the encoded frame size.
   3304     save_coding_context(cpi);
   3305     vp9_pack_bitstream(cpi, dest, size);
   3306     restore_coding_context(cpi);
   3307     frame_size = (int)(*size) << 3;
   3308     // Check if encoded frame will overshoot too much, and if so, set the q and
   3309     // adjust some rate control parameters, and return to re-encode the frame.
   3310     if (vp9_encodedframe_overshoot(cpi, frame_size, &q)) {
   3311       vpx_clear_system_state();
   3312       vp9_set_quantizer(cm, q);
   3313       vp9_set_variance_partition_thresholds(cpi, q);
   3314       suppress_active_map(cpi);
   3315       // Turn-off cyclic refresh for re-encoded frame.
   3316       if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
   3317         unsigned char *const seg_map = cpi->segmentation_map;
   3318         memset(seg_map, 0, cm->mi_rows * cm->mi_cols);
   3319         vp9_disable_segmentation(&cm->seg);
   3320       }
   3321       apply_active_map(cpi);
   3322       vp9_encode_frame(cpi);
   3323     }
   3324   }
   3325 
   3326   // Update some stats from cyclic refresh, and check if we should not update
   3327   // golden reference, for non-SVC 1 pass CBR.
   3328   if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&
   3329       cm->frame_type != KEY_FRAME &&
   3330       !cpi->use_svc &&
   3331       cpi->ext_refresh_frame_flags_pending == 0 &&
   3332       (cpi->oxcf.pass == 0 && cpi->oxcf.rc_mode == VPX_CBR))
   3333     vp9_cyclic_refresh_check_golden_update(cpi);
   3334 
   3335   // Update the skip mb flag probabilities based on the distribution
   3336   // seen in the last encoder iteration.
   3337   // update_base_skip_probs(cpi);
   3338   vpx_clear_system_state();
   3339 }
   3340 
   3341 static void encode_with_recode_loop(VP9_COMP *cpi,
   3342                                     size_t *size,
   3343                                     uint8_t *dest) {
   3344   VP9_COMMON *const cm = &cpi->common;
   3345   RATE_CONTROL *const rc = &cpi->rc;
   3346   int bottom_index, top_index;
   3347   int loop_count = 0;
   3348   int loop_at_this_size = 0;
   3349   int loop = 0;
   3350   int overshoot_seen = 0;
   3351   int undershoot_seen = 0;
   3352   int frame_over_shoot_limit;
   3353   int frame_under_shoot_limit;
   3354   int q = 0, q_low = 0, q_high = 0;
   3355 
   3356   set_size_independent_vars(cpi);
   3357 
   3358   do {
   3359     vpx_clear_system_state();
   3360 
   3361     set_frame_size(cpi);
   3362 
   3363     if (loop_count == 0 || cpi->resize_pending != 0) {
   3364       set_size_dependent_vars(cpi, &q, &bottom_index, &top_index);
   3365 
   3366       // TODO(agrange) Scale cpi->max_mv_magnitude if frame-size has changed.
   3367       set_mv_search_params(cpi);
   3368 
   3369       // Reset the loop state for new frame size.
   3370       overshoot_seen = 0;
   3371       undershoot_seen = 0;
   3372 
   3373       // Reconfiguration for change in frame size has concluded.
   3374       cpi->resize_pending = 0;
   3375 
   3376       q_low = bottom_index;
   3377       q_high = top_index;
   3378 
   3379       loop_at_this_size = 0;
   3380     }
   3381 
   3382     // Decide frame size bounds first time through.
   3383     if (loop_count == 0) {
   3384       vp9_rc_compute_frame_size_bounds(cpi, rc->this_frame_target,
   3385                                        &frame_under_shoot_limit,
   3386                                        &frame_over_shoot_limit);
   3387     }
   3388 
   3389     cpi->Source = vp9_scale_if_required(cm, cpi->un_scaled_source,
   3390                                       &cpi->scaled_source,
   3391                                       (cpi->oxcf.pass == 0));
   3392 
   3393     if (cpi->unscaled_last_source != NULL)
   3394       cpi->Last_Source = vp9_scale_if_required(cm, cpi->unscaled_last_source,
   3395                                                &cpi->scaled_last_source,
   3396                                                (cpi->oxcf.pass == 0));
   3397 
   3398     if (frame_is_intra_only(cm) == 0) {
   3399       if (loop_count > 0) {
   3400         release_scaled_references(cpi);
   3401       }
   3402       vp9_scale_references(cpi);
   3403     }
   3404 
   3405     vp9_set_quantizer(cm, q);
   3406 
   3407     if (loop_count == 0)
   3408       setup_frame(cpi);
   3409 
   3410     // Variance adaptive and in frame q adjustment experiments are mutually
   3411     // exclusive.
   3412     if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
   3413       vp9_vaq_frame_setup(cpi);
   3414     } else if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
   3415       vp9_setup_in_frame_q_adj(cpi);
   3416     }
   3417 
   3418     // transform / motion compensation build reconstruction frame
   3419     vp9_encode_frame(cpi);
   3420 
   3421     // Update the skip mb flag probabilities based on the distribution
   3422     // seen in the last encoder iteration.
   3423     // update_base_skip_probs(cpi);
   3424 
   3425     vpx_clear_system_state();
   3426 
   3427     // Dummy pack of the bitstream using up to date stats to get an
   3428     // accurate estimate of output frame size to determine if we need
   3429     // to recode.
   3430     if (cpi->sf.recode_loop >= ALLOW_RECODE_KFARFGF) {
   3431       save_coding_context(cpi);
   3432       if (!cpi->sf.use_nonrd_pick_mode)
   3433         vp9_pack_bitstream(cpi, dest, size);
   3434 
   3435       rc->projected_frame_size = (int)(*size) << 3;
   3436       restore_coding_context(cpi);
   3437 
   3438       if (frame_over_shoot_limit == 0)
   3439         frame_over_shoot_limit = 1;
   3440     }
   3441 
   3442     if (cpi->oxcf.rc_mode == VPX_Q) {
   3443       loop = 0;
   3444     } else {
   3445       if ((cm->frame_type == KEY_FRAME) &&
   3446            rc->this_key_frame_forced &&
   3447            (rc->projected_frame_size < rc->max_frame_bandwidth)) {
   3448         int last_q = q;
   3449         int64_t kf_err;
   3450 
   3451         int64_t high_err_target = cpi->ambient_err;
   3452         int64_t low_err_target = cpi->ambient_err >> 1;
   3453 
   3454 #if CONFIG_VP9_HIGHBITDEPTH
   3455         if (cm->use_highbitdepth) {
   3456           kf_err = vp9_highbd_get_y_sse(cpi->Source, get_frame_new_buffer(cm));
   3457         } else {
   3458           kf_err = vp9_get_y_sse(cpi->Source, get_frame_new_buffer(cm));
   3459         }
   3460 #else
   3461         kf_err = vp9_get_y_sse(cpi->Source, get_frame_new_buffer(cm));
   3462 #endif  // CONFIG_VP9_HIGHBITDEPTH
   3463 
   3464         // Prevent possible divide by zero error below for perfect KF
   3465         kf_err += !kf_err;
   3466 
   3467         // The key frame is not good enough or we can afford
   3468         // to make it better without undue risk of popping.
   3469         if ((kf_err > high_err_target &&
   3470              rc->projected_frame_size <= frame_over_shoot_limit) ||
   3471             (kf_err > low_err_target &&
   3472              rc->projected_frame_size <= frame_under_shoot_limit)) {
   3473           // Lower q_high
   3474           q_high = q > q_low ? q - 1 : q_low;
   3475 
   3476           // Adjust Q
   3477           q = (int)((q * high_err_target) / kf_err);
   3478           q = VPXMIN(q, (q_high + q_low) >> 1);
   3479         } else if (kf_err < low_err_target &&
   3480                    rc->projected_frame_size >= frame_under_shoot_limit) {
   3481           // The key frame is much better than the previous frame
   3482           // Raise q_low
   3483           q_low = q < q_high ? q + 1 : q_high;
   3484 
   3485           // Adjust Q
   3486           q = (int)((q * low_err_target) / kf_err);
   3487           q = VPXMIN(q, (q_high + q_low + 1) >> 1);
   3488         }
   3489 
   3490         // Clamp Q to upper and lower limits:
   3491         q = clamp(q, q_low, q_high);
   3492 
   3493         loop = q != last_q;
   3494       } else if (recode_loop_test(
   3495           cpi, frame_over_shoot_limit, frame_under_shoot_limit,
   3496           q, VPXMAX(q_high, top_index), bottom_index)) {
   3497         // Is the projected frame size out of range and are we allowed
   3498         // to attempt to recode.
   3499         int last_q = q;
   3500         int retries = 0;
   3501 
   3502         if (cpi->resize_pending == 1) {
   3503           // Change in frame size so go back around the recode loop.
   3504           cpi->rc.frame_size_selector =
   3505               SCALE_STEP1 - cpi->rc.frame_size_selector;
   3506           cpi->rc.next_frame_size_selector = cpi->rc.frame_size_selector;
   3507 
   3508 #if CONFIG_INTERNAL_STATS
   3509           ++cpi->tot_recode_hits;
   3510 #endif
   3511           ++loop_count;
   3512           loop = 1;
   3513           continue;
   3514         }
   3515 
   3516         // Frame size out of permitted range:
   3517         // Update correction factor & compute new Q to try...
   3518 
   3519         // Frame is too large
   3520         if (rc->projected_frame_size > rc->this_frame_target) {
   3521           // Special case if the projected size is > the max allowed.
   3522           if (rc->projected_frame_size >= rc->max_frame_bandwidth)
   3523             q_high = rc->worst_quality;
   3524 
   3525           // Raise Qlow as to at least the current value
   3526           q_low = q < q_high ? q + 1 : q_high;
   3527 
   3528           if (undershoot_seen || loop_at_this_size > 1) {
   3529             // Update rate_correction_factor unless
   3530             vp9_rc_update_rate_correction_factors(cpi);
   3531 
   3532             q = (q_high + q_low + 1) / 2;
   3533           } else {
   3534             // Update rate_correction_factor unless
   3535             vp9_rc_update_rate_correction_factors(cpi);
   3536 
   3537             q = vp9_rc_regulate_q(cpi, rc->this_frame_target,
   3538                                   bottom_index, VPXMAX(q_high, top_index));
   3539 
   3540             while (q < q_low && retries < 10) {
   3541               vp9_rc_update_rate_correction_factors(cpi);
   3542               q = vp9_rc_regulate_q(cpi, rc->this_frame_target,
   3543                                     bottom_index, VPXMAX(q_high, top_index));
   3544               retries++;
   3545             }
   3546           }
   3547 
   3548           overshoot_seen = 1;
   3549         } else {
   3550           // Frame is too small
   3551           q_high = q > q_low ? q - 1 : q_low;
   3552 
   3553           if (overshoot_seen || loop_at_this_size > 1) {
   3554             vp9_rc_update_rate_correction_factors(cpi);
   3555             q = (q_high + q_low) / 2;
   3556           } else {
   3557             vp9_rc_update_rate_correction_factors(cpi);
   3558             q = vp9_rc_regulate_q(cpi, rc->this_frame_target,
   3559                                    bottom_index, top_index);
   3560             // Special case reset for qlow for constrained quality.
   3561             // This should only trigger where there is very substantial
   3562             // undershoot on a frame and the auto cq level is above
   3563             // the user passsed in value.
   3564             if (cpi->oxcf.rc_mode == VPX_CQ &&
   3565                 q < q_low) {
   3566               q_low = q;
   3567             }
   3568 
   3569             while (q > q_high && retries < 10) {
   3570               vp9_rc_update_rate_correction_factors(cpi);
   3571               q = vp9_rc_regulate_q(cpi, rc->this_frame_target,
   3572                                      bottom_index, top_index);
   3573               retries++;
   3574             }
   3575           }
   3576 
   3577           undershoot_seen = 1;
   3578         }
   3579 
   3580         // Clamp Q to upper and lower limits:
   3581         q = clamp(q, q_low, q_high);
   3582 
   3583         loop = (q != last_q);
   3584       } else {
   3585         loop = 0;
   3586       }
   3587     }
   3588 
   3589     // Special case for overlay frame.
   3590     if (rc->is_src_frame_alt_ref &&
   3591         rc->projected_frame_size < rc->max_frame_bandwidth)
   3592       loop = 0;
   3593 
   3594     if (loop) {
   3595       ++loop_count;
   3596       ++loop_at_this_size;
   3597 
   3598 #if CONFIG_INTERNAL_STATS
   3599       ++cpi->tot_recode_hits;
   3600 #endif
   3601     }
   3602   } while (loop);
   3603 }
   3604 
   3605 static int get_ref_frame_flags(const VP9_COMP *cpi) {
   3606   const int *const map = cpi->common.ref_frame_map;
   3607   const int gold_is_last = map[cpi->gld_fb_idx] == map[cpi->lst_fb_idx];
   3608   const int alt_is_last = map[cpi->alt_fb_idx] == map[cpi->lst_fb_idx];
   3609   const int gold_is_alt = map[cpi->gld_fb_idx] == map[cpi->alt_fb_idx];
   3610   int flags = VP9_ALT_FLAG | VP9_GOLD_FLAG | VP9_LAST_FLAG;
   3611 
   3612   if (gold_is_last)
   3613     flags &= ~VP9_GOLD_FLAG;
   3614 
   3615   if (cpi->rc.frames_till_gf_update_due == INT_MAX &&
   3616       (cpi->svc.number_temporal_layers == 1 &&
   3617        cpi->svc.number_spatial_layers == 1))
   3618     flags &= ~VP9_GOLD_FLAG;
   3619 
   3620   if (alt_is_last)
   3621     flags &= ~VP9_ALT_FLAG;
   3622 
   3623   if (gold_is_alt)
   3624     flags &= ~VP9_ALT_FLAG;
   3625 
   3626   return flags;
   3627 }
   3628 
   3629 static void set_ext_overrides(VP9_COMP *cpi) {
   3630   // Overrides the defaults with the externally supplied values with
   3631   // vp9_update_reference() and vp9_update_entropy() calls
   3632   // Note: The overrides are valid only for the next frame passed
   3633   // to encode_frame_to_data_rate() function
   3634   if (cpi->ext_refresh_frame_context_pending) {
   3635     cpi->common.refresh_frame_context = cpi->ext_refresh_frame_context;
   3636     cpi->ext_refresh_frame_context_pending = 0;
   3637   }
   3638   if (cpi->ext_refresh_frame_flags_pending) {
   3639     cpi->refresh_last_frame = cpi->ext_refresh_last_frame;
   3640     cpi->refresh_golden_frame = cpi->ext_refresh_golden_frame;
   3641     cpi->refresh_alt_ref_frame = cpi->ext_refresh_alt_ref_frame;
   3642   }
   3643 }
   3644 
   3645 YV12_BUFFER_CONFIG *vp9_scale_if_required(VP9_COMMON *cm,
   3646                                           YV12_BUFFER_CONFIG *unscaled,
   3647                                           YV12_BUFFER_CONFIG *scaled,
   3648                                           int use_normative_scaler) {
   3649   if (cm->mi_cols * MI_SIZE != unscaled->y_width ||
   3650       cm->mi_rows * MI_SIZE != unscaled->y_height) {
   3651 #if CONFIG_VP9_HIGHBITDEPTH
   3652     if (use_normative_scaler)
   3653       scale_and_extend_frame(unscaled, scaled, (int)cm->bit_depth);
   3654     else
   3655       scale_and_extend_frame_nonnormative(unscaled, scaled, (int)cm->bit_depth);
   3656 #else
   3657     if (use_normative_scaler)
   3658       scale_and_extend_frame(unscaled, scaled);
   3659     else
   3660       scale_and_extend_frame_nonnormative(unscaled, scaled);
   3661 #endif  // CONFIG_VP9_HIGHBITDEPTH
   3662     return scaled;
   3663   } else {
   3664     return unscaled;
   3665   }
   3666 }
   3667 
   3668 static void set_arf_sign_bias(VP9_COMP *cpi) {
   3669   VP9_COMMON *const cm = &cpi->common;
   3670   int arf_sign_bias;
   3671 
   3672   if ((cpi->oxcf.pass == 2) && cpi->multi_arf_allowed) {
   3673     const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
   3674     arf_sign_bias = cpi->rc.source_alt_ref_active &&
   3675                     (!cpi->refresh_alt_ref_frame ||
   3676                      (gf_group->rf_level[gf_group->index] == GF_ARF_LOW));
   3677   } else {
   3678     arf_sign_bias =
   3679       (cpi->rc.source_alt_ref_active && !cpi->refresh_alt_ref_frame);
   3680   }
   3681   cm->ref_frame_sign_bias[ALTREF_FRAME] = arf_sign_bias;
   3682 }
   3683 
   3684 static int setup_interp_filter_search_mask(VP9_COMP *cpi) {
   3685   INTERP_FILTER ifilter;
   3686   int ref_total[MAX_REF_FRAMES] = {0};
   3687   MV_REFERENCE_FRAME ref;
   3688   int mask = 0;
   3689   if (cpi->common.last_frame_type == KEY_FRAME ||
   3690       cpi->refresh_alt_ref_frame)
   3691     return mask;
   3692   for (ref = LAST_FRAME; ref <= ALTREF_FRAME; ++ref)
   3693     for (ifilter = EIGHTTAP; ifilter <= EIGHTTAP_SHARP; ++ifilter)
   3694       ref_total[ref] += cpi->interp_filter_selected[ref][ifilter];
   3695 
   3696   for (ifilter = EIGHTTAP; ifilter <= EIGHTTAP_SHARP; ++ifilter) {
   3697     if ((ref_total[LAST_FRAME] &&
   3698         cpi->interp_filter_selected[LAST_FRAME][ifilter] == 0) &&
   3699         (ref_total[GOLDEN_FRAME] == 0 ||
   3700          cpi->interp_filter_selected[GOLDEN_FRAME][ifilter] * 50
   3701            < ref_total[GOLDEN_FRAME]) &&
   3702         (ref_total[ALTREF_FRAME] == 0 ||
   3703          cpi->interp_filter_selected[ALTREF_FRAME][ifilter] * 50
   3704            < ref_total[ALTREF_FRAME]))
   3705       mask |= 1 << ifilter;
   3706   }
   3707   return mask;
   3708 }
   3709 
   3710 static void encode_frame_to_data_rate(VP9_COMP *cpi,
   3711                                       size_t *size,
   3712                                       uint8_t *dest,
   3713                                       unsigned int *frame_flags) {
   3714   VP9_COMMON *const cm = &cpi->common;
   3715   const VP9EncoderConfig *const oxcf = &cpi->oxcf;
   3716   struct segmentation *const seg = &cm->seg;
   3717   TX_SIZE t;
   3718 
   3719   set_ext_overrides(cpi);
   3720   vpx_clear_system_state();
   3721 
   3722   // Set the arf sign bias for this frame.
   3723   set_arf_sign_bias(cpi);
   3724 
   3725   // Set default state for segment based loop filter update flags.
   3726   cm->lf.mode_ref_delta_update = 0;
   3727 
   3728   if (cpi->oxcf.pass == 2 &&
   3729       cpi->sf.adaptive_interp_filter_search)
   3730     cpi->sf.interp_filter_search_mask =
   3731         setup_interp_filter_search_mask(cpi);
   3732 
   3733   // Set various flags etc to special state if it is a key frame.
   3734   if (frame_is_intra_only(cm)) {
   3735     // Reset the loop filter deltas and segmentation map.
   3736     vp9_reset_segment_features(&cm->seg);
   3737 
   3738     // If segmentation is enabled force a map update for key frames.
   3739     if (seg->enabled) {
   3740       seg->update_map = 1;
   3741       seg->update_data = 1;
   3742     }
   3743 
   3744     // The alternate reference frame cannot be active for a key frame.
   3745     cpi->rc.source_alt_ref_active = 0;
   3746 
   3747     cm->error_resilient_mode = oxcf->error_resilient_mode;
   3748     cm->frame_parallel_decoding_mode = oxcf->frame_parallel_decoding_mode;
   3749 
   3750     // By default, encoder assumes decoder can use prev_mi.
   3751     if (cm->error_resilient_mode) {
   3752       cm->frame_parallel_decoding_mode = 1;
   3753       cm->reset_frame_context = 0;
   3754       cm->refresh_frame_context = 0;
   3755     } else if (cm->intra_only) {
   3756       // Only reset the current context.
   3757       cm->reset_frame_context = 2;
   3758     }
   3759   }
   3760   if (is_two_pass_svc(cpi) && cm->error_resilient_mode == 0) {
   3761     // Use context 0 for intra only empty frame, but the last frame context
   3762     // for other empty frames.
   3763     if (cpi->svc.encode_empty_frame_state == ENCODING) {
   3764       if (cpi->svc.encode_intra_empty_frame != 0)
   3765         cm->frame_context_idx = 0;
   3766       else
   3767         cm->frame_context_idx = FRAME_CONTEXTS - 1;
   3768     } else {
   3769     cm->frame_context_idx =
   3770         cpi->svc.spatial_layer_id * cpi->svc.number_temporal_layers +
   3771         cpi->svc.temporal_layer_id;
   3772     }
   3773 
   3774     cm->frame_parallel_decoding_mode = oxcf->frame_parallel_decoding_mode;
   3775 
   3776     // The probs will be updated based on the frame type of its previous
   3777     // frame if frame_parallel_decoding_mode is 0. The type may vary for
   3778     // the frame after a key frame in base layer since we may drop enhancement
   3779     // layers. So set frame_parallel_decoding_mode to 1 in this case.
   3780     if (cm->frame_parallel_decoding_mode == 0) {
   3781       if (cpi->svc.number_temporal_layers == 1) {
   3782         if (cpi->svc.spatial_layer_id == 0 &&
   3783             cpi->svc.layer_context[0].last_frame_type == KEY_FRAME)
   3784           cm->frame_parallel_decoding_mode = 1;
   3785       } else if (cpi->svc.spatial_layer_id == 0) {
   3786         // Find the 2nd frame in temporal base layer and 1st frame in temporal
   3787         // enhancement layers from the key frame.
   3788         int i;
   3789         for (i = 0; i < cpi->svc.number_temporal_layers; ++i) {
   3790           if (cpi->svc.layer_context[0].frames_from_key_frame == 1 << i) {
   3791             cm->frame_parallel_decoding_mode = 1;
   3792             break;
   3793           }
   3794         }
   3795       }
   3796     }
   3797   }
   3798 
   3799   // For 1 pass CBR, check if we are dropping this frame.
   3800   // Never drop on key frame.
   3801   if (oxcf->pass == 0 &&
   3802       oxcf->rc_mode == VPX_CBR &&
   3803       cm->frame_type != KEY_FRAME) {
   3804     if (vp9_rc_drop_frame(cpi)) {
   3805       vp9_rc_postencode_update_drop_frame(cpi);
   3806       ++cm->current_video_frame;
   3807       cpi->ext_refresh_frame_flags_pending = 0;
   3808       return;
   3809     }
   3810   }
   3811 
   3812   vpx_clear_system_state();
   3813 
   3814 #if CONFIG_INTERNAL_STATS
   3815   memset(cpi->mode_chosen_counts, 0,
   3816          MAX_MODES * sizeof(*cpi->mode_chosen_counts));
   3817 #endif
   3818 
   3819   if (cpi->sf.recode_loop == DISALLOW_RECODE) {
   3820     encode_without_recode_loop(cpi, size, dest);
   3821   } else {
   3822     encode_with_recode_loop(cpi, size, dest);
   3823   }
   3824 
   3825 #if CONFIG_VP9_TEMPORAL_DENOISING
   3826 #ifdef OUTPUT_YUV_DENOISED
   3827   if (oxcf->noise_sensitivity > 0) {
   3828     vp9_write_yuv_frame_420(&cpi->denoiser.running_avg_y[INTRA_FRAME],
   3829                             yuv_denoised_file);
   3830   }
   3831 #endif
   3832 #endif
   3833 #ifdef OUTPUT_YUV_SKINMAP
   3834   if (cpi->common.current_video_frame > 1) {
   3835     vp9_compute_skin_map(cpi, yuv_skinmap_file);
   3836   }
   3837 #endif
   3838 
   3839   // Special case code to reduce pulsing when key frames are forced at a
   3840   // fixed interval. Note the reconstruction error if it is the frame before
   3841   // the force key frame
   3842   if (cpi->rc.next_key_frame_forced && cpi->rc.frames_to_key == 1) {
   3843 #if CONFIG_VP9_HIGHBITDEPTH
   3844     if (cm->use_highbitdepth) {
   3845       cpi->ambient_err = vp9_highbd_get_y_sse(cpi->Source,
   3846                                               get_frame_new_buffer(cm));
   3847     } else {
   3848       cpi->ambient_err = vp9_get_y_sse(cpi->Source, get_frame_new_buffer(cm));
   3849     }
   3850 #else
   3851     cpi->ambient_err = vp9_get_y_sse(cpi->Source, get_frame_new_buffer(cm));
   3852 #endif  // CONFIG_VP9_HIGHBITDEPTH
   3853   }
   3854 
   3855   // If the encoder forced a KEY_FRAME decision
   3856   if (cm->frame_type == KEY_FRAME)
   3857     cpi->refresh_last_frame = 1;
   3858 
   3859   cm->frame_to_show = get_frame_new_buffer(cm);
   3860   cm->frame_to_show->color_space = cm->color_space;
   3861   cm->frame_to_show->color_range = cm->color_range;
   3862   cm->frame_to_show->render_width  = cm->render_width;
   3863   cm->frame_to_show->render_height = cm->render_height;
   3864 
   3865   // Pick the loop filter level for the frame.
   3866   loopfilter_frame(cpi, cm);
   3867 
   3868   // build the bitstream
   3869   vp9_pack_bitstream(cpi, dest, size);
   3870 
   3871   if (cm->seg.update_map)
   3872     update_reference_segmentation_map(cpi);
   3873 
   3874   if (frame_is_intra_only(cm) == 0) {
   3875     release_scaled_references(cpi);
   3876   }
   3877   vp9_update_reference_frames(cpi);
   3878 
   3879   for (t = TX_4X4; t <= TX_32X32; t++)
   3880     full_to_model_counts(cpi->td.counts->coef[t],
   3881                          cpi->td.rd_counts.coef_counts[t]);
   3882 
   3883   if (!cm->error_resilient_mode && !cm->frame_parallel_decoding_mode)
   3884     vp9_adapt_coef_probs(cm);
   3885 
   3886   if (!frame_is_intra_only(cm)) {
   3887     if (!cm->error_resilient_mode && !cm->frame_parallel_decoding_mode) {
   3888       vp9_adapt_mode_probs(cm);
   3889       vp9_adapt_mv_probs(cm, cm->allow_high_precision_mv);
   3890     }
   3891   }
   3892 
   3893   cpi->ext_refresh_frame_flags_pending = 0;
   3894 
   3895   if (cpi->refresh_golden_frame == 1)
   3896     cpi->frame_flags |= FRAMEFLAGS_GOLDEN;
   3897   else
   3898     cpi->frame_flags &= ~FRAMEFLAGS_GOLDEN;
   3899 
   3900   if (cpi->refresh_alt_ref_frame == 1)
   3901     cpi->frame_flags |= FRAMEFLAGS_ALTREF;
   3902   else
   3903     cpi->frame_flags &= ~FRAMEFLAGS_ALTREF;
   3904 
   3905   cpi->ref_frame_flags = get_ref_frame_flags(cpi);
   3906 
   3907   cm->last_frame_type = cm->frame_type;
   3908 
   3909   if (!(is_two_pass_svc(cpi) && cpi->svc.encode_empty_frame_state == ENCODING))
   3910     vp9_rc_postencode_update(cpi, *size);
   3911 
   3912 #if 0
   3913   output_frame_level_debug_stats(cpi);
   3914 #endif
   3915 
   3916   if (cm->frame_type == KEY_FRAME) {
   3917     // Tell the caller that the frame was coded as a key frame
   3918     *frame_flags = cpi->frame_flags | FRAMEFLAGS_KEY;
   3919   } else {
   3920     *frame_flags = cpi->frame_flags & ~FRAMEFLAGS_KEY;
   3921   }
   3922 
   3923   // Clear the one shot update flags for segmentation map and mode/ref loop
   3924   // filter deltas.
   3925   cm->seg.update_map = 0;
   3926   cm->seg.update_data = 0;
   3927   cm->lf.mode_ref_delta_update = 0;
   3928 
   3929   // keep track of the last coded dimensions
   3930   cm->last_width = cm->width;
   3931   cm->last_height = cm->height;
   3932 
   3933   // reset to normal state now that we are done.
   3934   if (!cm->show_existing_frame)
   3935     cm->last_show_frame = cm->show_frame;
   3936 
   3937   if (cm->show_frame) {
   3938     vp9_swap_mi_and_prev_mi(cm);
   3939     // Don't increment frame counters if this was an altref buffer
   3940     // update not a real frame
   3941     ++cm->current_video_frame;
   3942     if (cpi->use_svc)
   3943       vp9_inc_frame_in_layer(cpi);
   3944   }
   3945   cm->prev_frame = cm->cur_frame;
   3946 
   3947   if (cpi->use_svc)
   3948     cpi->svc.layer_context[cpi->svc.spatial_layer_id *
   3949                            cpi->svc.number_temporal_layers +
   3950                            cpi->svc.temporal_layer_id].last_frame_type =
   3951                                cm->frame_type;
   3952 }
   3953 
   3954 static void SvcEncode(VP9_COMP *cpi, size_t *size, uint8_t *dest,
   3955                       unsigned int *frame_flags) {
   3956   vp9_rc_get_svc_params(cpi);
   3957   encode_frame_to_data_rate(cpi, size, dest, frame_flags);
   3958 }
   3959 
   3960 static void Pass0Encode(VP9_COMP *cpi, size_t *size, uint8_t *dest,
   3961                         unsigned int *frame_flags) {
   3962   if (cpi->oxcf.rc_mode == VPX_CBR) {
   3963     vp9_rc_get_one_pass_cbr_params(cpi);
   3964   } else {
   3965     vp9_rc_get_one_pass_vbr_params(cpi);
   3966   }
   3967   encode_frame_to_data_rate(cpi, size, dest, frame_flags);
   3968 }
   3969 
   3970 static void Pass2Encode(VP9_COMP *cpi, size_t *size,
   3971                         uint8_t *dest, unsigned int *frame_flags) {
   3972   cpi->allow_encode_breakout = ENCODE_BREAKOUT_ENABLED;
   3973   encode_frame_to_data_rate(cpi, size, dest, frame_flags);
   3974 
   3975   if (!(is_two_pass_svc(cpi) && cpi->svc.encode_empty_frame_state == ENCODING))
   3976     vp9_twopass_postencode_update(cpi);
   3977 }
   3978 
   3979 static void init_ref_frame_bufs(VP9_COMMON *cm) {
   3980   int i;
   3981   BufferPool *const pool = cm->buffer_pool;
   3982   cm->new_fb_idx = INVALID_IDX;
   3983   for (i = 0; i < REF_FRAMES; ++i) {
   3984     cm->ref_frame_map[i] = INVALID_IDX;
   3985     pool->frame_bufs[i].ref_count = 0;
   3986   }
   3987 }
   3988 
   3989 static void check_initial_width(VP9_COMP *cpi,
   3990 #if CONFIG_VP9_HIGHBITDEPTH
   3991                                 int use_highbitdepth,
   3992 #endif
   3993                                 int subsampling_x, int subsampling_y) {
   3994   VP9_COMMON *const cm = &cpi->common;
   3995 
   3996   if (!cpi->initial_width ||
   3997 #if CONFIG_VP9_HIGHBITDEPTH
   3998       cm->use_highbitdepth != use_highbitdepth ||
   3999 #endif
   4000       cm->subsampling_x != subsampling_x ||
   4001       cm->subsampling_y != subsampling_y) {
   4002     cm->subsampling_x = subsampling_x;
   4003     cm->subsampling_y = subsampling_y;
   4004 #if CONFIG_VP9_HIGHBITDEPTH
   4005     cm->use_highbitdepth = use_highbitdepth;
   4006 #endif
   4007 
   4008     alloc_raw_frame_buffers(cpi);
   4009     init_ref_frame_bufs(cm);
   4010     alloc_util_frame_buffers(cpi);
   4011 
   4012     init_motion_estimation(cpi);  // TODO(agrange) This can be removed.
   4013 
   4014     cpi->initial_width = cm->width;
   4015     cpi->initial_height = cm->height;
   4016     cpi->initial_mbs = cm->MBs;
   4017   }
   4018 }
   4019 
   4020 int vp9_receive_raw_frame(VP9_COMP *cpi, unsigned int frame_flags,
   4021                           YV12_BUFFER_CONFIG *sd, int64_t time_stamp,
   4022                           int64_t end_time) {
   4023   VP9_COMMON *cm = &cpi->common;
   4024   struct vpx_usec_timer timer;
   4025   int res = 0;
   4026   const int subsampling_x = sd->subsampling_x;
   4027   const int subsampling_y = sd->subsampling_y;
   4028 #if CONFIG_VP9_HIGHBITDEPTH
   4029   const int use_highbitdepth = sd->flags & YV12_FLAG_HIGHBITDEPTH;
   4030   check_initial_width(cpi, use_highbitdepth, subsampling_x, subsampling_y);
   4031 #else
   4032   check_initial_width(cpi, subsampling_x, subsampling_y);
   4033 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4034 
   4035 #if CONFIG_VP9_TEMPORAL_DENOISING
   4036   setup_denoiser_buffer(cpi);
   4037 #endif
   4038   vpx_usec_timer_start(&timer);
   4039 
   4040   if (vp9_lookahead_push(cpi->lookahead, sd, time_stamp, end_time,
   4041 #if CONFIG_VP9_HIGHBITDEPTH
   4042                          use_highbitdepth,
   4043 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4044                          frame_flags))
   4045     res = -1;
   4046   vpx_usec_timer_mark(&timer);
   4047   cpi->time_receive_data += vpx_usec_timer_elapsed(&timer);
   4048 
   4049   if ((cm->profile == PROFILE_0 || cm->profile == PROFILE_2) &&
   4050       (subsampling_x != 1 || subsampling_y != 1)) {
   4051     vpx_internal_error(&cm->error, VPX_CODEC_INVALID_PARAM,
   4052                        "Non-4:2:0 color format requires profile 1 or 3");
   4053     res = -1;
   4054   }
   4055   if ((cm->profile == PROFILE_1 || cm->profile == PROFILE_3) &&
   4056       (subsampling_x == 1 && subsampling_y == 1)) {
   4057     vpx_internal_error(&cm->error, VPX_CODEC_INVALID_PARAM,
   4058                        "4:2:0 color format requires profile 0 or 2");
   4059     res = -1;
   4060   }
   4061 
   4062   return res;
   4063 }
   4064 
   4065 
   4066 static int frame_is_reference(const VP9_COMP *cpi) {
   4067   const VP9_COMMON *cm = &cpi->common;
   4068 
   4069   return cm->frame_type == KEY_FRAME ||
   4070          cpi->refresh_last_frame ||
   4071          cpi->refresh_golden_frame ||
   4072          cpi->refresh_alt_ref_frame ||
   4073          cm->refresh_frame_context ||
   4074          cm->lf.mode_ref_delta_update ||
   4075          cm->seg.update_map ||
   4076          cm->seg.update_data;
   4077 }
   4078 
   4079 static void adjust_frame_rate(VP9_COMP *cpi,
   4080                               const struct lookahead_entry *source) {
   4081   int64_t this_duration;
   4082   int step = 0;
   4083 
   4084   if (source->ts_start == cpi->first_time_stamp_ever) {
   4085     this_duration = source->ts_end - source->ts_start;
   4086     step = 1;
   4087   } else {
   4088     int64_t last_duration = cpi->last_end_time_stamp_seen
   4089         - cpi->last_time_stamp_seen;
   4090 
   4091     this_duration = source->ts_end - cpi->last_end_time_stamp_seen;
   4092 
   4093     // do a step update if the duration changes by 10%
   4094     if (last_duration)
   4095       step = (int)((this_duration - last_duration) * 10 / last_duration);
   4096   }
   4097 
   4098   if (this_duration) {
   4099     if (step) {
   4100       vp9_new_framerate(cpi, 10000000.0 / this_duration);
   4101     } else {
   4102       // Average this frame's rate into the last second's average
   4103       // frame rate. If we haven't seen 1 second yet, then average
   4104       // over the whole interval seen.
   4105       const double interval = VPXMIN(
   4106           (double)(source->ts_end - cpi->first_time_stamp_ever), 10000000.0);
   4107       double avg_duration = 10000000.0 / cpi->framerate;
   4108       avg_duration *= (interval - avg_duration + this_duration);
   4109       avg_duration /= interval;
   4110 
   4111       vp9_new_framerate(cpi, 10000000.0 / avg_duration);
   4112     }
   4113   }
   4114   cpi->last_time_stamp_seen = source->ts_start;
   4115   cpi->last_end_time_stamp_seen = source->ts_end;
   4116 }
   4117 
   4118 // Returns 0 if this is not an alt ref else the offset of the source frame
   4119 // used as the arf midpoint.
   4120 static int get_arf_src_index(VP9_COMP *cpi) {
   4121   RATE_CONTROL *const rc = &cpi->rc;
   4122   int arf_src_index = 0;
   4123   if (is_altref_enabled(cpi)) {
   4124     if (cpi->oxcf.pass == 2) {
   4125       const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
   4126       if (gf_group->update_type[gf_group->index] == ARF_UPDATE) {
   4127         arf_src_index = gf_group->arf_src_offset[gf_group->index];
   4128       }
   4129     } else if (rc->source_alt_ref_pending) {
   4130       arf_src_index = rc->frames_till_gf_update_due;
   4131     }
   4132   }
   4133   return arf_src_index;
   4134 }
   4135 
   4136 static void check_src_altref(VP9_COMP *cpi,
   4137                              const struct lookahead_entry *source) {
   4138   RATE_CONTROL *const rc = &cpi->rc;
   4139 
   4140   if (cpi->oxcf.pass == 2) {
   4141     const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
   4142     rc->is_src_frame_alt_ref =
   4143       (gf_group->update_type[gf_group->index] == OVERLAY_UPDATE);
   4144   } else {
   4145     rc->is_src_frame_alt_ref = cpi->alt_ref_source &&
   4146                                (source == cpi->alt_ref_source);
   4147   }
   4148 
   4149   if (rc->is_src_frame_alt_ref) {
   4150     // Current frame is an ARF overlay frame.
   4151     cpi->alt_ref_source = NULL;
   4152 
   4153     // Don't refresh the last buffer for an ARF overlay frame. It will
   4154     // become the GF so preserve last as an alternative prediction option.
   4155     cpi->refresh_last_frame = 0;
   4156   }
   4157 }
   4158 
   4159 #if CONFIG_INTERNAL_STATS
   4160 extern double vp9_get_blockiness(const uint8_t *img1, int img1_pitch,
   4161                                  const uint8_t *img2, int img2_pitch,
   4162                                  int width, int height);
   4163 
   4164 static void adjust_image_stat(double y, double u, double v, double all,
   4165                               ImageStat *s) {
   4166   s->stat[Y] += y;
   4167   s->stat[U] += u;
   4168   s->stat[V] += v;
   4169   s->stat[ALL] += all;
   4170   s->worst = VPXMIN(s->worst, all);
   4171 }
   4172 #endif  // CONFIG_INTERNAL_STATS
   4173 
   4174 int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
   4175                             size_t *size, uint8_t *dest,
   4176                             int64_t *time_stamp, int64_t *time_end, int flush) {
   4177   const VP9EncoderConfig *const oxcf = &cpi->oxcf;
   4178   VP9_COMMON *const cm = &cpi->common;
   4179   BufferPool *const pool = cm->buffer_pool;
   4180   RATE_CONTROL *const rc = &cpi->rc;
   4181   struct vpx_usec_timer  cmptimer;
   4182   YV12_BUFFER_CONFIG *force_src_buffer = NULL;
   4183   struct lookahead_entry *last_source = NULL;
   4184   struct lookahead_entry *source = NULL;
   4185   int arf_src_index;
   4186   int i;
   4187 
   4188   if (is_two_pass_svc(cpi)) {
   4189 #if CONFIG_SPATIAL_SVC
   4190     vp9_svc_start_frame(cpi);
   4191     // Use a small empty frame instead of a real frame
   4192     if (cpi->svc.encode_empty_frame_state == ENCODING)
   4193       source = &cpi->svc.empty_frame;
   4194 #endif
   4195     if (oxcf->pass == 2)
   4196       vp9_restore_layer_context(cpi);
   4197   } else if (is_one_pass_cbr_svc(cpi)) {
   4198     vp9_one_pass_cbr_svc_start_layer(cpi);
   4199   }
   4200 
   4201   vpx_usec_timer_start(&cmptimer);
   4202 
   4203   vp9_set_high_precision_mv(cpi, ALTREF_HIGH_PRECISION_MV);
   4204 
   4205   // Is multi-arf enabled.
   4206   // Note that at the moment multi_arf is only configured for 2 pass VBR and
   4207   // will not work properly with svc.
   4208   if ((oxcf->pass == 2) && !cpi->use_svc &&
   4209       (cpi->oxcf.enable_auto_arf > 1))
   4210     cpi->multi_arf_allowed = 1;
   4211   else
   4212     cpi->multi_arf_allowed = 0;
   4213 
   4214   // Normal defaults
   4215   cm->reset_frame_context = 0;
   4216   cm->refresh_frame_context = 1;
   4217   if (!is_one_pass_cbr_svc(cpi)) {
   4218     cpi->refresh_last_frame = 1;
   4219     cpi->refresh_golden_frame = 0;
   4220     cpi->refresh_alt_ref_frame = 0;
   4221   }
   4222 
   4223   // Should we encode an arf frame.
   4224   arf_src_index = get_arf_src_index(cpi);
   4225 
   4226   // Skip alt frame if we encode the empty frame
   4227   if (is_two_pass_svc(cpi) && source != NULL)
   4228     arf_src_index = 0;
   4229 
   4230   if (arf_src_index) {
   4231     assert(arf_src_index <= rc->frames_to_key);
   4232 
   4233     if ((source = vp9_lookahead_peek(cpi->lookahead, arf_src_index)) != NULL) {
   4234       cpi->alt_ref_source = source;
   4235 
   4236 #if CONFIG_SPATIAL_SVC
   4237       if (is_two_pass_svc(cpi) && cpi->svc.spatial_layer_id > 0) {
   4238         int i;
   4239         // Reference a hidden frame from a lower layer
   4240         for (i = cpi->svc.spatial_layer_id - 1; i >= 0; --i) {
   4241           if (oxcf->ss_enable_auto_arf[i]) {
   4242             cpi->gld_fb_idx = cpi->svc.layer_context[i].alt_ref_idx;
   4243             break;
   4244           }
   4245         }
   4246       }
   4247       cpi->svc.layer_context[cpi->svc.spatial_layer_id].has_alt_frame = 1;
   4248 #endif
   4249 
   4250       if (oxcf->arnr_max_frames > 0) {
   4251         // Produce the filtered ARF frame.
   4252         vp9_temporal_filter(cpi, arf_src_index);
   4253         vpx_extend_frame_borders(&cpi->alt_ref_buffer);
   4254         force_src_buffer = &cpi->alt_ref_buffer;
   4255       }
   4256 
   4257       cm->show_frame = 0;
   4258       cm->intra_only = 0;
   4259       cpi->refresh_alt_ref_frame = 1;
   4260       cpi->refresh_golden_frame = 0;
   4261       cpi->refresh_last_frame = 0;
   4262       rc->is_src_frame_alt_ref = 0;
   4263       rc->source_alt_ref_pending = 0;
   4264     } else {
   4265       rc->source_alt_ref_pending = 0;
   4266     }
   4267   }
   4268 
   4269   if (!source) {
   4270     // Get last frame source.
   4271     if (cm->current_video_frame > 0) {
   4272       if ((last_source = vp9_lookahead_peek(cpi->lookahead, -1)) == NULL)
   4273         return -1;
   4274     }
   4275 
   4276     // Read in the source frame.
   4277     if (cpi->use_svc)
   4278       source = vp9_svc_lookahead_pop(cpi, cpi->lookahead, flush);
   4279     else
   4280       source = vp9_lookahead_pop(cpi->lookahead, flush);
   4281 
   4282     if (source != NULL) {
   4283       cm->show_frame = 1;
   4284       cm->intra_only = 0;
   4285       // if the flags indicate intra frame, but if the current picture is for
   4286       // non-zero spatial layer, it should not be an intra picture.
   4287       // TODO(Won Kap): this needs to change if per-layer intra frame is
   4288       // allowed.
   4289       if ((source->flags & VPX_EFLAG_FORCE_KF) &&
   4290           cpi->svc.spatial_layer_id > cpi->svc.first_spatial_layer_to_encode) {
   4291         source->flags &= ~(unsigned int)(VPX_EFLAG_FORCE_KF);
   4292       }
   4293 
   4294       // Check to see if the frame should be encoded as an arf overlay.
   4295       check_src_altref(cpi, source);
   4296     }
   4297   }
   4298 
   4299   if (source) {
   4300     cpi->un_scaled_source = cpi->Source = force_src_buffer ? force_src_buffer
   4301                                                            : &source->img;
   4302 
   4303     cpi->unscaled_last_source = last_source != NULL ? &last_source->img : NULL;
   4304 
   4305     *time_stamp = source->ts_start;
   4306     *time_end = source->ts_end;
   4307     *frame_flags = (source->flags & VPX_EFLAG_FORCE_KF) ? FRAMEFLAGS_KEY : 0;
   4308 
   4309   } else {
   4310     *size = 0;
   4311     if (flush && oxcf->pass == 1 && !cpi->twopass.first_pass_done) {
   4312       vp9_end_first_pass(cpi);    /* get last stats packet */
   4313       cpi->twopass.first_pass_done = 1;
   4314     }
   4315     return -1;
   4316   }
   4317 
   4318   if (source->ts_start < cpi->first_time_stamp_ever) {
   4319     cpi->first_time_stamp_ever = source->ts_start;
   4320     cpi->last_end_time_stamp_seen = source->ts_start;
   4321   }
   4322 
   4323   // Clear down mmx registers
   4324   vpx_clear_system_state();
   4325 
   4326   // adjust frame rates based on timestamps given
   4327   if (cm->show_frame) {
   4328     adjust_frame_rate(cpi, source);
   4329   }
   4330 
   4331   if (is_one_pass_cbr_svc(cpi)) {
   4332     vp9_update_temporal_layer_framerate(cpi);
   4333     vp9_restore_layer_context(cpi);
   4334   }
   4335 
   4336   // Find a free buffer for the new frame, releasing the reference previously
   4337   // held.
   4338   if (cm->new_fb_idx != INVALID_IDX) {
   4339     --pool->frame_bufs[cm->new_fb_idx].ref_count;
   4340   }
   4341   cm->new_fb_idx = get_free_fb(cm);
   4342 
   4343   if (cm->new_fb_idx == INVALID_IDX)
   4344     return -1;
   4345 
   4346   cm->cur_frame = &pool->frame_bufs[cm->new_fb_idx];
   4347 
   4348   if (!cpi->use_svc && cpi->multi_arf_allowed) {
   4349     if (cm->frame_type == KEY_FRAME) {
   4350       init_buffer_indices(cpi);
   4351     } else if (oxcf->pass == 2) {
   4352       const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
   4353       cpi->alt_fb_idx = gf_group->arf_ref_idx[gf_group->index];
   4354     }
   4355   }
   4356 
   4357   // Start with a 0 size frame.
   4358   *size = 0;
   4359 
   4360   cpi->frame_flags = *frame_flags;
   4361 
   4362   if ((oxcf->pass == 2) &&
   4363       (!cpi->use_svc ||
   4364           (is_two_pass_svc(cpi) &&
   4365               cpi->svc.encode_empty_frame_state != ENCODING))) {
   4366     vp9_rc_get_second_pass_params(cpi);
   4367   } else if (oxcf->pass == 1) {
   4368     set_frame_size(cpi);
   4369   }
   4370 
   4371   if (cpi->oxcf.pass != 0 ||
   4372       cpi->use_svc ||
   4373       frame_is_intra_only(cm) == 1) {
   4374     for (i = 0; i < MAX_REF_FRAMES; ++i)
   4375       cpi->scaled_ref_idx[i] = INVALID_IDX;
   4376   }
   4377 
   4378   if (oxcf->pass == 1 &&
   4379       (!cpi->use_svc || is_two_pass_svc(cpi))) {
   4380     const int lossless = is_lossless_requested(oxcf);
   4381 #if CONFIG_VP9_HIGHBITDEPTH
   4382     if (cpi->oxcf.use_highbitdepth)
   4383       cpi->td.mb.fwd_txm4x4 = lossless ?
   4384           vp9_highbd_fwht4x4 : vpx_highbd_fdct4x4;
   4385     else
   4386       cpi->td.mb.fwd_txm4x4 = lossless ? vp9_fwht4x4 : vpx_fdct4x4;
   4387     cpi->td.mb.highbd_itxm_add = lossless ? vp9_highbd_iwht4x4_add :
   4388                                          vp9_highbd_idct4x4_add;
   4389 #else
   4390     cpi->td.mb.fwd_txm4x4 = lossless ? vp9_fwht4x4 : vpx_fdct4x4;
   4391 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4392     cpi->td.mb.itxm_add = lossless ? vp9_iwht4x4_add : vp9_idct4x4_add;
   4393     vp9_first_pass(cpi, source);
   4394   } else if (oxcf->pass == 2 &&
   4395       (!cpi->use_svc || is_two_pass_svc(cpi))) {
   4396     Pass2Encode(cpi, size, dest, frame_flags);
   4397   } else if (cpi->use_svc) {
   4398     SvcEncode(cpi, size, dest, frame_flags);
   4399   } else {
   4400     // One pass encode
   4401     Pass0Encode(cpi, size, dest, frame_flags);
   4402   }
   4403 
   4404   if (cm->refresh_frame_context)
   4405     cm->frame_contexts[cm->frame_context_idx] = *cm->fc;
   4406 
   4407   // No frame encoded, or frame was dropped, release scaled references.
   4408   if ((*size == 0) && (frame_is_intra_only(cm) == 0)) {
   4409     release_scaled_references(cpi);
   4410   }
   4411 
   4412   if (*size > 0) {
   4413     cpi->droppable = !frame_is_reference(cpi);
   4414   }
   4415 
   4416   // Save layer specific state.
   4417   if (is_one_pass_cbr_svc(cpi) ||
   4418         ((cpi->svc.number_temporal_layers > 1 ||
   4419           cpi->svc.number_spatial_layers > 1) &&
   4420          oxcf->pass == 2)) {
   4421     vp9_save_layer_context(cpi);
   4422   }
   4423 
   4424   vpx_usec_timer_mark(&cmptimer);
   4425   cpi->time_compress_data += vpx_usec_timer_elapsed(&cmptimer);
   4426 
   4427   if (cpi->b_calculate_psnr && oxcf->pass != 1 && cm->show_frame)
   4428     generate_psnr_packet(cpi);
   4429 
   4430 #if CONFIG_INTERNAL_STATS
   4431 
   4432   if (oxcf->pass != 1) {
   4433     double samples = 0.0;
   4434     cpi->bytes += (int)(*size);
   4435 
   4436     if (cm->show_frame) {
   4437       cpi->count++;
   4438 
   4439       if (cpi->b_calculate_psnr) {
   4440         YV12_BUFFER_CONFIG *orig = cpi->Source;
   4441         YV12_BUFFER_CONFIG *recon = cpi->common.frame_to_show;
   4442         YV12_BUFFER_CONFIG *pp = &cm->post_proc_buffer;
   4443         PSNR_STATS psnr;
   4444 #if CONFIG_VP9_HIGHBITDEPTH
   4445         calc_highbd_psnr(orig, recon, &psnr, cpi->td.mb.e_mbd.bd,
   4446                          cpi->oxcf.input_bit_depth);
   4447 #else
   4448         calc_psnr(orig, recon, &psnr);
   4449 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4450 
   4451         adjust_image_stat(psnr.psnr[1], psnr.psnr[2], psnr.psnr[3],
   4452                           psnr.psnr[0], &cpi->psnr);
   4453         cpi->total_sq_error += psnr.sse[0];
   4454         cpi->total_samples += psnr.samples[0];
   4455         samples = psnr.samples[0];
   4456 
   4457         {
   4458           PSNR_STATS psnr2;
   4459           double frame_ssim2 = 0, weight = 0;
   4460 #if CONFIG_VP9_POSTPROC
   4461           if (vpx_alloc_frame_buffer(&cm->post_proc_buffer,
   4462                                      recon->y_crop_width, recon->y_crop_height,
   4463                                      cm->subsampling_x, cm->subsampling_y,
   4464 #if CONFIG_VP9_HIGHBITDEPTH
   4465                                      cm->use_highbitdepth,
   4466 #endif
   4467                                      VP9_ENC_BORDER_IN_PIXELS,
   4468                                      cm->byte_alignment) < 0) {
   4469             vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
   4470                                "Failed to allocate post processing buffer");
   4471           }
   4472 
   4473           vp9_deblock(cm->frame_to_show, &cm->post_proc_buffer,
   4474                       cm->lf.filter_level * 10 / 6);
   4475 #endif
   4476           vpx_clear_system_state();
   4477 
   4478 #if CONFIG_VP9_HIGHBITDEPTH
   4479           calc_highbd_psnr(orig, pp, &psnr2, cpi->td.mb.e_mbd.bd,
   4480                            cpi->oxcf.input_bit_depth);
   4481 #else
   4482           calc_psnr(orig, pp, &psnr2);
   4483 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4484 
   4485           cpi->totalp_sq_error += psnr2.sse[0];
   4486           cpi->totalp_samples += psnr2.samples[0];
   4487           adjust_image_stat(psnr2.psnr[1], psnr2.psnr[2], psnr2.psnr[3],
   4488                             psnr2.psnr[0], &cpi->psnrp);
   4489 
   4490 #if CONFIG_VP9_HIGHBITDEPTH
   4491           if (cm->use_highbitdepth) {
   4492             frame_ssim2 = vpx_highbd_calc_ssim(orig, recon, &weight,
   4493                                                (int)cm->bit_depth);
   4494           } else {
   4495             frame_ssim2 = vpx_calc_ssim(orig, recon, &weight);
   4496           }
   4497 #else
   4498           frame_ssim2 = vpx_calc_ssim(orig, recon, &weight);
   4499 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4500 
   4501           cpi->worst_ssim = VPXMIN(cpi->worst_ssim, frame_ssim2);
   4502           cpi->summed_quality += frame_ssim2 * weight;
   4503           cpi->summed_weights += weight;
   4504 
   4505 #if CONFIG_VP9_HIGHBITDEPTH
   4506           if (cm->use_highbitdepth) {
   4507             frame_ssim2 = vpx_highbd_calc_ssim(
   4508                 orig, &cm->post_proc_buffer, &weight, (int)cm->bit_depth);
   4509           } else {
   4510             frame_ssim2 = vpx_calc_ssim(orig, &cm->post_proc_buffer, &weight);
   4511           }
   4512 #else
   4513           frame_ssim2 = vpx_calc_ssim(orig, &cm->post_proc_buffer, &weight);
   4514 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4515 
   4516           cpi->summedp_quality += frame_ssim2 * weight;
   4517           cpi->summedp_weights += weight;
   4518 #if 0
   4519           {
   4520             FILE *f = fopen("q_used.stt", "a");
   4521             fprintf(f, "%5d : Y%f7.3:U%f7.3:V%f7.3:F%f7.3:S%7.3f\n",
   4522                     cpi->common.current_video_frame, y2, u2, v2,
   4523                     frame_psnr2, frame_ssim2);
   4524             fclose(f);
   4525           }
   4526 #endif
   4527         }
   4528       }
   4529       if (cpi->b_calculate_blockiness) {
   4530 #if CONFIG_VP9_HIGHBITDEPTH
   4531         if (!cm->use_highbitdepth)
   4532 #endif
   4533         {
   4534           double frame_blockiness = vp9_get_blockiness(
   4535               cpi->Source->y_buffer, cpi->Source->y_stride,
   4536               cm->frame_to_show->y_buffer, cm->frame_to_show->y_stride,
   4537               cpi->Source->y_width, cpi->Source->y_height);
   4538           cpi->worst_blockiness =
   4539               VPXMAX(cpi->worst_blockiness, frame_blockiness);
   4540           cpi->total_blockiness += frame_blockiness;
   4541         }
   4542       }
   4543 
   4544       if (cpi->b_calculate_consistency) {
   4545 #if CONFIG_VP9_HIGHBITDEPTH
   4546         if (!cm->use_highbitdepth)
   4547 #endif
   4548         {
   4549           double this_inconsistency = vpx_get_ssim_metrics(
   4550               cpi->Source->y_buffer, cpi->Source->y_stride,
   4551               cm->frame_to_show->y_buffer, cm->frame_to_show->y_stride,
   4552               cpi->Source->y_width, cpi->Source->y_height, cpi->ssim_vars,
   4553               &cpi->metrics, 1);
   4554 
   4555           const double peak = (double)((1 << cpi->oxcf.input_bit_depth) - 1);
   4556           double consistency = vpx_sse_to_psnr(samples, peak,
   4557                                              (double)cpi->total_inconsistency);
   4558           if (consistency > 0.0)
   4559             cpi->worst_consistency =
   4560                 VPXMIN(cpi->worst_consistency, consistency);
   4561           cpi->total_inconsistency += this_inconsistency;
   4562         }
   4563       }
   4564 
   4565       if (cpi->b_calculate_ssimg) {
   4566         double y, u, v, frame_all;
   4567 #if CONFIG_VP9_HIGHBITDEPTH
   4568         if (cm->use_highbitdepth) {
   4569           frame_all = vpx_highbd_calc_ssimg(cpi->Source, cm->frame_to_show, &y,
   4570                                             &u, &v, (int)cm->bit_depth);
   4571         } else {
   4572           frame_all = vpx_calc_ssimg(cpi->Source, cm->frame_to_show, &y, &u,
   4573                                      &v);
   4574         }
   4575 #else
   4576         frame_all = vpx_calc_ssimg(cpi->Source, cm->frame_to_show, &y, &u, &v);
   4577 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4578         adjust_image_stat(y, u, v, frame_all, &cpi->ssimg);
   4579       }
   4580 #if CONFIG_VP9_HIGHBITDEPTH
   4581       if (!cm->use_highbitdepth)
   4582 #endif
   4583       {
   4584         double y, u, v, frame_all;
   4585         frame_all = vpx_calc_fastssim(cpi->Source, cm->frame_to_show, &y, &u,
   4586                                       &v);
   4587         adjust_image_stat(y, u, v, frame_all, &cpi->fastssim);
   4588         /* TODO(JBB): add 10/12 bit support */
   4589       }
   4590 #if CONFIG_VP9_HIGHBITDEPTH
   4591       if (!cm->use_highbitdepth)
   4592 #endif
   4593       {
   4594         double y, u, v, frame_all;
   4595         frame_all = vpx_psnrhvs(cpi->Source, cm->frame_to_show, &y, &u, &v);
   4596         adjust_image_stat(y, u, v, frame_all, &cpi->psnrhvs);
   4597       }
   4598     }
   4599   }
   4600 
   4601 #endif
   4602 
   4603   if (is_two_pass_svc(cpi)) {
   4604     if (cpi->svc.encode_empty_frame_state == ENCODING) {
   4605       cpi->svc.encode_empty_frame_state = ENCODED;
   4606       cpi->svc.encode_intra_empty_frame = 0;
   4607     }
   4608 
   4609     if (cm->show_frame) {
   4610       ++cpi->svc.spatial_layer_to_encode;
   4611       if (cpi->svc.spatial_layer_to_encode >= cpi->svc.number_spatial_layers)
   4612         cpi->svc.spatial_layer_to_encode = 0;
   4613 
   4614       // May need the empty frame after an visible frame.
   4615       cpi->svc.encode_empty_frame_state = NEED_TO_ENCODE;
   4616     }
   4617   } else if (is_one_pass_cbr_svc(cpi)) {
   4618     if (cm->show_frame) {
   4619       ++cpi->svc.spatial_layer_to_encode;
   4620       if (cpi->svc.spatial_layer_to_encode >= cpi->svc.number_spatial_layers)
   4621         cpi->svc.spatial_layer_to_encode = 0;
   4622     }
   4623   }
   4624   vpx_clear_system_state();
   4625   return 0;
   4626 }
   4627 
   4628 int vp9_get_preview_raw_frame(VP9_COMP *cpi, YV12_BUFFER_CONFIG *dest,
   4629                               vp9_ppflags_t *flags) {
   4630   VP9_COMMON *cm = &cpi->common;
   4631 #if !CONFIG_VP9_POSTPROC
   4632   (void)flags;
   4633 #endif
   4634 
   4635   if (!cm->show_frame) {
   4636     return -1;
   4637   } else {
   4638     int ret;
   4639 #if CONFIG_VP9_POSTPROC
   4640     ret = vp9_post_proc_frame(cm, dest, flags);
   4641 #else
   4642     if (cm->frame_to_show) {
   4643       *dest = *cm->frame_to_show;
   4644       dest->y_width = cm->width;
   4645       dest->y_height = cm->height;
   4646       dest->uv_width = cm->width >> cm->subsampling_x;
   4647       dest->uv_height = cm->height >> cm->subsampling_y;
   4648       ret = 0;
   4649     } else {
   4650       ret = -1;
   4651     }
   4652 #endif  // !CONFIG_VP9_POSTPROC
   4653     vpx_clear_system_state();
   4654     return ret;
   4655   }
   4656 }
   4657 
   4658 int vp9_set_internal_size(VP9_COMP *cpi,
   4659                           VPX_SCALING horiz_mode, VPX_SCALING vert_mode) {
   4660   VP9_COMMON *cm = &cpi->common;
   4661   int hr = 0, hs = 0, vr = 0, vs = 0;
   4662 
   4663   if (horiz_mode > ONETWO || vert_mode > ONETWO)
   4664     return -1;
   4665 
   4666   Scale2Ratio(horiz_mode, &hr, &hs);
   4667   Scale2Ratio(vert_mode, &vr, &vs);
   4668 
   4669   // always go to the next whole number
   4670   cm->width = (hs - 1 + cpi->oxcf.width * hr) / hs;
   4671   cm->height = (vs - 1 + cpi->oxcf.height * vr) / vs;
   4672   if (cm->current_video_frame) {
   4673     assert(cm->width <= cpi->initial_width);
   4674     assert(cm->height <= cpi->initial_height);
   4675   }
   4676 
   4677   update_frame_size(cpi);
   4678 
   4679   return 0;
   4680 }
   4681 
   4682 int vp9_set_size_literal(VP9_COMP *cpi, unsigned int width,
   4683                          unsigned int height) {
   4684   VP9_COMMON *cm = &cpi->common;
   4685 #if CONFIG_VP9_HIGHBITDEPTH
   4686   check_initial_width(cpi, cm->use_highbitdepth, 1, 1);
   4687 #else
   4688   check_initial_width(cpi, 1, 1);
   4689 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4690 
   4691 #if CONFIG_VP9_TEMPORAL_DENOISING
   4692   setup_denoiser_buffer(cpi);
   4693 #endif
   4694 
   4695   if (width) {
   4696     cm->width = width;
   4697     if (cm->width > cpi->initial_width) {
   4698       cm->width = cpi->initial_width;
   4699       printf("Warning: Desired width too large, changed to %d\n", cm->width);
   4700     }
   4701   }
   4702 
   4703   if (height) {
   4704     cm->height = height;
   4705     if (cm->height > cpi->initial_height) {
   4706       cm->height = cpi->initial_height;
   4707       printf("Warning: Desired height too large, changed to %d\n", cm->height);
   4708     }
   4709   }
   4710   assert(cm->width <= cpi->initial_width);
   4711   assert(cm->height <= cpi->initial_height);
   4712 
   4713   update_frame_size(cpi);
   4714 
   4715   return 0;
   4716 }
   4717 
   4718 void vp9_set_svc(VP9_COMP *cpi, int use_svc) {
   4719   cpi->use_svc = use_svc;
   4720   return;
   4721 }
   4722 
   4723 int64_t vp9_get_y_sse(const YV12_BUFFER_CONFIG *a,
   4724                       const YV12_BUFFER_CONFIG *b) {
   4725   assert(a->y_crop_width == b->y_crop_width);
   4726   assert(a->y_crop_height == b->y_crop_height);
   4727 
   4728   return get_sse(a->y_buffer, a->y_stride, b->y_buffer, b->y_stride,
   4729                  a->y_crop_width, a->y_crop_height);
   4730 }
   4731 
   4732 #if CONFIG_VP9_HIGHBITDEPTH
   4733 int64_t vp9_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a,
   4734                              const YV12_BUFFER_CONFIG *b) {
   4735   assert(a->y_crop_width == b->y_crop_width);
   4736   assert(a->y_crop_height == b->y_crop_height);
   4737   assert((a->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
   4738   assert((b->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
   4739 
   4740   return highbd_get_sse(a->y_buffer, a->y_stride, b->y_buffer, b->y_stride,
   4741                         a->y_crop_width, a->y_crop_height);
   4742 }
   4743 #endif  // CONFIG_VP9_HIGHBITDEPTH
   4744 
   4745 int vp9_get_quantizer(VP9_COMP *cpi) {
   4746   return cpi->common.base_qindex;
   4747 }
   4748 
   4749 void vp9_apply_encoding_flags(VP9_COMP *cpi, vpx_enc_frame_flags_t flags) {
   4750   if (flags & (VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_GF |
   4751                VP8_EFLAG_NO_REF_ARF)) {
   4752     int ref = 7;
   4753 
   4754     if (flags & VP8_EFLAG_NO_REF_LAST)
   4755       ref ^= VP9_LAST_FLAG;
   4756 
   4757     if (flags & VP8_EFLAG_NO_REF_GF)
   4758       ref ^= VP9_GOLD_FLAG;
   4759 
   4760     if (flags & VP8_EFLAG_NO_REF_ARF)
   4761       ref ^= VP9_ALT_FLAG;
   4762 
   4763     vp9_use_as_reference(cpi, ref);
   4764   }
   4765 
   4766   if (flags & (VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF |
   4767                VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_FORCE_GF |
   4768                VP8_EFLAG_FORCE_ARF)) {
   4769     int upd = 7;
   4770 
   4771     if (flags & VP8_EFLAG_NO_UPD_LAST)
   4772       upd ^= VP9_LAST_FLAG;
   4773 
   4774     if (flags & VP8_EFLAG_NO_UPD_GF)
   4775       upd ^= VP9_GOLD_FLAG;
   4776 
   4777     if (flags & VP8_EFLAG_NO_UPD_ARF)
   4778       upd ^= VP9_ALT_FLAG;
   4779 
   4780     vp9_update_reference(cpi, upd);
   4781   }
   4782 
   4783   if (flags & VP8_EFLAG_NO_UPD_ENTROPY) {
   4784     vp9_update_entropy(cpi, 0);
   4785   }
   4786 }
   4787