vp9_speed_features.c 16.7 KB
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/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include <limits.h>

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#include "vp9/encoder/vp9_encoder.h"
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#include "vp9/encoder/vp9_speed_features.h"

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enum {
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  INTRA_ALL       = (1 << DC_PRED) |
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                    (1 << V_PRED) | (1 << H_PRED) |
                    (1 << D45_PRED) | (1 << D135_PRED) |
                    (1 << D117_PRED) | (1 << D153_PRED) |
                    (1 << D207_PRED) | (1 << D63_PRED) |
                    (1 << TM_PRED),
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  INTRA_DC        = (1 << DC_PRED),
  INTRA_DC_TM     = (1 << DC_PRED) | (1 << TM_PRED),
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  INTRA_DC_H_V    = (1 << DC_PRED) | (1 << V_PRED) | (1 << H_PRED),
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  INTRA_DC_TM_H_V = (1 << DC_PRED) | (1 << TM_PRED) | (1 << V_PRED) |
                    (1 << H_PRED)
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};

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enum {
  INTER_ALL = (1 << NEARESTMV) | (1 << NEARMV) | (1 << ZEROMV) | (1 << NEWMV),
  INTER_NEAREST = (1 << NEARESTMV),
  INTER_NEAREST_NEAR_NEW = (1 << NEARESTMV) | (1 << NEARMV) | (1 << NEWMV)
};

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enum {
  DISABLE_ALL_INTER_SPLIT   = (1 << THR_COMP_GA) |
                              (1 << THR_COMP_LA) |
                              (1 << THR_ALTR) |
                              (1 << THR_GOLD) |
                              (1 << THR_LAST),

  DISABLE_ALL_SPLIT         = (1 << THR_INTRA) | DISABLE_ALL_INTER_SPLIT,

  DISABLE_COMPOUND_SPLIT    = (1 << THR_COMP_GA) | (1 << THR_COMP_LA),

  LAST_AND_INTRA_SPLIT_ONLY = (1 << THR_COMP_GA) |
                              (1 << THR_COMP_LA) |
                              (1 << THR_ALTR) |
                              (1 << THR_GOLD)
};
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// Intra only frames, golden frames (except alt ref overlays) and
// alt ref frames tend to be coded at a higher than ambient quality
static int frame_is_boosted(const VP9_COMP *cpi) {
  return frame_is_intra_only(&cpi->common) ||
         cpi->refresh_alt_ref_frame ||
         (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref) ||
         vp9_is_upper_layer_key_frame(cpi);
}


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static void set_good_speed_feature(VP9_COMP *cpi, VP9_COMMON *cm,
                                   SPEED_FEATURES *sf, int speed) {
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  const int boosted = frame_is_boosted(cpi);

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  sf->adaptive_rd_thresh = 1;
  sf->allow_skip_recode = 1;

  if (speed >= 1) {
    sf->use_square_partition_only = !frame_is_intra_only(cm);
    sf->less_rectangular_check  = 1;

    if (MIN(cm->width, cm->height) >= 720)
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      sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
                                              : DISABLE_ALL_INTER_SPLIT;
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    else
      sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;
    sf->use_rd_breakout = 1;
    sf->adaptive_motion_search = 1;
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    sf->mv.auto_mv_step_size = 1;
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    sf->adaptive_rd_thresh = 2;
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    sf->mv.subpel_iters_per_step = 1;
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    sf->mode_skip_start = 10;
    sf->adaptive_pred_interp_filter = 1;

    sf->recode_loop = ALLOW_RECODE_KFARFGF;
    sf->intra_y_mode_mask[TX_32X32] = INTRA_DC_H_V;
    sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;
    sf->intra_y_mode_mask[TX_16X16] = INTRA_DC_H_V;
    sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
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    sf->tx_size_search_breakout = 1;
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    if (MIN(cm->width, cm->height) >= 720)
      sf->partition_search_breakout_dist_thr = (1 << 23);
    else
      sf->partition_search_breakout_dist_thr = (1 << 21);
    sf->partition_search_breakout_rate_thr = 500;
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  }
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  if (speed >= 2) {
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    sf->tx_size_search_method = frame_is_boosted(cpi) ? USE_FULL_RD
                                                      : USE_LARGESTALL;

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    if (MIN(cm->width, cm->height) >= 720) {
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      sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
                                              : DISABLE_ALL_INTER_SPLIT;
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      sf->adaptive_pred_interp_filter = 0;
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    } else {
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      sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;
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    }
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    sf->reference_masking = 1;
    sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
                                 FLAG_SKIP_INTRA_BESTINTER |
                                 FLAG_SKIP_COMP_BESTINTRA |
                                 FLAG_SKIP_INTRA_LOWVAR;
    sf->disable_filter_search_var_thresh = 100;
    sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
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    sf->auto_min_max_partition_size = CONSTRAIN_NEIGHBORING_MIN_MAX;
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    if (MIN(cm->width, cm->height) >= 720)
      sf->partition_search_breakout_dist_thr = (1 << 24);
    else
      sf->partition_search_breakout_dist_thr = (1 << 22);
    sf->partition_search_breakout_rate_thr = 700;
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  }
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  if (speed >= 3) {
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    sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
                                                        : USE_LARGESTALL;
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    if (MIN(cm->width, cm->height) >= 720) {
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      sf->disable_split_mask = DISABLE_ALL_SPLIT;
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    } else {
      sf->max_intra_bsize = BLOCK_32X32;
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      sf->disable_split_mask = DISABLE_ALL_INTER_SPLIT;
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    }
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    sf->adaptive_pred_interp_filter = 0;
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    sf->adaptive_mode_search = 1;
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    sf->cb_partition_search = !boosted;
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    sf->cb_pred_filter_search = 1;
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    sf->alt_ref_search_fp = 1;
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    sf->motion_field_mode_search = !boosted;
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    sf->recode_loop = ALLOW_RECODE_KFMAXBW;
    sf->adaptive_rd_thresh = 3;
    sf->mode_skip_start = 6;
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    sf->intra_y_mode_mask[TX_32X32] = INTRA_DC;
    sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC;
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    sf->adaptive_interp_filter_search = 1;
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    if (MIN(cm->width, cm->height) >= 720)
      sf->partition_search_breakout_dist_thr = (1 << 25);
    else
      sf->partition_search_breakout_dist_thr = (1 << 23);
    sf->partition_search_breakout_rate_thr = 1000;
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  }
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  if (speed >= 4) {
    sf->use_square_partition_only = 1;
    sf->tx_size_search_method = USE_LARGESTALL;
    sf->disable_split_mask = DISABLE_ALL_SPLIT;
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    sf->mv.search_method = BIGDIA;
    sf->mv.subpel_search_method = SUBPEL_TREE_PRUNED;
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    sf->adaptive_rd_thresh = 4;
    sf->mode_search_skip_flags |= FLAG_SKIP_COMP_REFMISMATCH |
                                  FLAG_EARLY_TERMINATE;
    sf->disable_filter_search_var_thresh = 200;
    sf->use_lp32x32fdct = 1;
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    sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
    sf->use_fast_coef_costing = 1;
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    if (MIN(cm->width, cm->height) >= 720)
      sf->partition_search_breakout_dist_thr = (1 << 26);
    else
      sf->partition_search_breakout_dist_thr = (1 << 24);
    sf->partition_search_breakout_rate_thr = 1500;
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  }
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  if (speed >= 5) {
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    int i;

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    sf->partition_search_type = FIXED_PARTITION;
    sf->optimize_coefficients = 0;
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    sf->mv.search_method = HEX;
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    sf->disable_filter_search_var_thresh = 500;
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    for (i = 0; i < TX_SIZES; ++i) {
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      sf->intra_y_mode_mask[i] = INTRA_DC;
      sf->intra_uv_mode_mask[i] = INTRA_DC;
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    }
    cpi->allow_encode_breakout = ENCODE_BREAKOUT_ENABLED;
  }
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  if (speed >= 6) {
    sf->mv.reduce_first_step_size = 1;
  }
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}

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static void set_rt_speed_feature(VP9_COMP *cpi, SPEED_FEATURES *sf,
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                                 int speed, vp9e_tune_content content) {
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  VP9_COMMON *const cm = &cpi->common;
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  const int is_keyframe = cm->frame_type == KEY_FRAME;
  const int frames_since_key = is_keyframe ? 0 : cpi->rc.frames_since_key;
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  sf->static_segmentation = 0;
  sf->adaptive_rd_thresh = 1;
  sf->use_fast_coef_costing = 1;

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  if (speed >= 1) {
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    sf->use_square_partition_only = !frame_is_intra_only(cm);
    sf->less_rectangular_check = 1;
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    sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
                                                        : USE_LARGESTALL;
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    if (MIN(cm->width, cm->height) >= 720)
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      sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
                                              : DISABLE_ALL_INTER_SPLIT;
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    else
      sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;

    sf->use_rd_breakout = 1;
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    sf->adaptive_motion_search = 1;
    sf->adaptive_pred_interp_filter = 1;
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    sf->mv.auto_mv_step_size = 1;
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    sf->adaptive_rd_thresh = 2;
    sf->intra_y_mode_mask[TX_32X32] = INTRA_DC_H_V;
    sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;
    sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
  }
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  if (speed >= 2) {
    if (MIN(cm->width, cm->height) >= 720)
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      sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
                                              : DISABLE_ALL_INTER_SPLIT;
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    else
      sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;

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    sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
                                 FLAG_SKIP_INTRA_BESTINTER |
                                 FLAG_SKIP_COMP_BESTINTRA |
                                 FLAG_SKIP_INTRA_LOWVAR;
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    sf->adaptive_pred_interp_filter = 2;
    sf->reference_masking = 1;
    sf->disable_filter_search_var_thresh = 50;
    sf->comp_inter_joint_search_thresh = BLOCK_SIZES;
    sf->auto_min_max_partition_size = RELAXED_NEIGHBORING_MIN_MAX;
    sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_LOW_MOTION;
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    sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
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    sf->adjust_partitioning_from_last_frame = 1;
    sf->last_partitioning_redo_frequency = 3;
    sf->use_lp32x32fdct = 1;
    sf->mode_skip_start = 11;
    sf->intra_y_mode_mask[TX_16X16] = INTRA_DC_H_V;
  }
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  if (speed >= 3) {
    sf->use_square_partition_only = 1;
    sf->disable_filter_search_var_thresh = 100;
    sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_ALL;
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    sf->constrain_copy_partition = 1;
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    sf->use_uv_intra_rd_estimate = 1;
    sf->skip_encode_sb = 1;
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    sf->mv.subpel_iters_per_step = 1;
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    sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
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    sf->adaptive_rd_thresh = 4;
    sf->mode_skip_start = 6;
    sf->allow_skip_recode = 0;
    sf->optimize_coefficients = 0;
    sf->disable_split_mask = DISABLE_ALL_SPLIT;
    sf->lpf_pick = LPF_PICK_FROM_Q;
  }
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  if (speed >= 4) {
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    int i;
    sf->last_partitioning_redo_frequency = 4;
    sf->adaptive_rd_thresh = 5;
    sf->use_fast_coef_costing = 0;
    sf->auto_min_max_partition_size = STRICT_NEIGHBORING_MIN_MAX;
    sf->adjust_partitioning_from_last_frame =
        cm->last_frame_type != cm->frame_type || (0 ==
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        (frames_since_key + 1) % sf->last_partitioning_redo_frequency);
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    sf->mv.subpel_force_stop = 1;
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    for (i = 0; i < TX_SIZES; i++) {
      sf->intra_y_mode_mask[i] = INTRA_DC_H_V;
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      sf->intra_uv_mode_mask[i] = INTRA_DC;
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    }
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    sf->intra_y_mode_mask[TX_32X32] = INTRA_DC;
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    sf->frame_parameter_update = 0;
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    sf->mv.search_method = FAST_HEX;
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    sf->inter_mode_mask[BLOCK_32X32] = INTER_NEAREST_NEAR_NEW;
    sf->inter_mode_mask[BLOCK_32X64] = INTER_NEAREST;
    sf->inter_mode_mask[BLOCK_64X32] = INTER_NEAREST;
    sf->inter_mode_mask[BLOCK_64X64] = INTER_NEAREST;
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    sf->max_intra_bsize = BLOCK_32X32;
    sf->allow_skip_recode = 1;
  }
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  if (speed >= 5) {
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    sf->use_quant_fp = !is_keyframe;
    sf->auto_min_max_partition_size = is_keyframe ? RELAXED_NEIGHBORING_MIN_MAX
                                                  : STRICT_NEIGHBORING_MIN_MAX;
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    sf->max_partition_size = BLOCK_32X32;
    sf->min_partition_size = BLOCK_8X8;
    sf->partition_check =
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        (frames_since_key % sf->last_partitioning_redo_frequency == 1);
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    sf->force_frame_boost = is_keyframe ||
        (frames_since_key % (sf->last_partitioning_redo_frequency << 1) == 1);
    sf->max_delta_qindex = is_keyframe ? 20 : 15;
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    sf->partition_search_type = REFERENCE_PARTITION;
    sf->use_nonrd_pick_mode = 1;
    sf->allow_skip_recode = 0;
  }
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  if (speed >= 6) {
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    if (content == VP9E_CONTENT_SCREEN) {
      int i;
      // Allow fancy modes at all sizes since SOURCE_VAR_BASED_PARTITION is used
      for (i = 0; i < BLOCK_SIZES; ++i)
        sf->inter_mode_mask[i] = INTER_ALL;
    }

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    // Adaptively switch between SOURCE_VAR_BASED_PARTITION and FIXED_PARTITION.
    sf->partition_search_type = SOURCE_VAR_BASED_PARTITION;
    sf->search_type_check_frequency = 50;
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    sf->tx_size_search_method = is_keyframe ? USE_LARGESTALL : USE_TX_8X8;
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    // This feature is only enabled when partition search is disabled.
    sf->reuse_inter_pred_sby = 1;
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    // Increase mode checking threshold for NEWMV.
    sf->elevate_newmv_thresh = 2000;
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    sf->mv.reduce_first_step_size = 1;
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  }
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  if (speed >= 7) {
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    sf->mv.search_method = FAST_DIAMOND;
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    sf->mv.fullpel_search_step_param = 10;
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    sf->lpf_pick = LPF_PICK_MINIMAL_LPF;
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    sf->encode_breakout_thresh = (MIN(cm->width, cm->height) >= 720) ?
        800 : 300;
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    sf->elevate_newmv_thresh = 2500;
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  }
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  if (speed >= 12) {
    sf->elevate_newmv_thresh = 4000;
    sf->mv.subpel_force_stop = 2;
  }
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  if (speed >= 13) {
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    int i;
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    sf->max_intra_bsize = BLOCK_32X32;
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    for (i = 0; i < BLOCK_SIZES; ++i)
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      sf->inter_mode_mask[i] = INTER_NEAREST;
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  }
}

void vp9_set_speed_features(VP9_COMP *cpi) {
  SPEED_FEATURES *const sf = &cpi->sf;
  VP9_COMMON *const cm = &cpi->common;
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  const VP9EncoderConfig *const oxcf = &cpi->oxcf;
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  int i;

  // best quality defaults
  sf->frame_parameter_update = 1;
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  sf->mv.search_method = NSTEP;
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  sf->recode_loop = ALLOW_RECODE;
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  sf->mv.subpel_search_method = SUBPEL_TREE;
  sf->mv.subpel_iters_per_step = 2;
  sf->mv.subpel_force_stop = 0;
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  sf->optimize_coefficients = !is_lossless_requested(&cpi->oxcf);
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  sf->mv.reduce_first_step_size = 0;
  sf->mv.auto_mv_step_size = 0;
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  sf->mv.fullpel_search_step_param = 6;
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  sf->comp_inter_joint_search_thresh = BLOCK_4X4;
  sf->adaptive_rd_thresh = 0;
  sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_OFF;
  sf->tx_size_search_method = USE_FULL_RD;
  sf->use_lp32x32fdct = 0;
  sf->adaptive_motion_search = 0;
  sf->adaptive_pred_interp_filter = 0;
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  sf->adaptive_mode_search = 0;
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  sf->cb_pred_filter_search = 0;
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  sf->cb_partition_search = 0;
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  sf->motion_field_mode_search = 0;
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  sf->alt_ref_search_fp = 0;
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  sf->use_quant_fp = 0;
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  sf->reference_masking = 0;
  sf->partition_search_type = SEARCH_PARTITION;
  sf->less_rectangular_check = 0;
  sf->use_square_partition_only = 0;
  sf->auto_min_max_partition_size = NOT_IN_USE;
  sf->max_partition_size = BLOCK_64X64;
  sf->min_partition_size = BLOCK_4X4;
  sf->adjust_partitioning_from_last_frame = 0;
  sf->last_partitioning_redo_frequency = 4;
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  sf->constrain_copy_partition = 0;
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  sf->disable_split_mask = 0;
  sf->mode_search_skip_flags = 0;
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  sf->force_frame_boost = 0;
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  sf->max_delta_qindex = 0;
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  sf->disable_filter_search_var_thresh = 0;
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  sf->adaptive_interp_filter_search = 0;

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  for (i = 0; i < TX_SIZES; i++) {
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    sf->intra_y_mode_mask[i] = INTRA_ALL;
    sf->intra_uv_mode_mask[i] = INTRA_ALL;
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  }
  sf->use_rd_breakout = 0;
  sf->skip_encode_sb = 0;
  sf->use_uv_intra_rd_estimate = 0;
  sf->allow_skip_recode = 0;
  sf->lpf_pick = LPF_PICK_FROM_FULL_IMAGE;
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  sf->use_fast_coef_updates = TWO_LOOP;
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  sf->use_fast_coef_costing = 0;
  sf->mode_skip_start = MAX_MODES;  // Mode index at which mode skip mask set
  sf->use_nonrd_pick_mode = 0;
  for (i = 0; i < BLOCK_SIZES; ++i)
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    sf->inter_mode_mask[i] = INTER_ALL;
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  sf->max_intra_bsize = BLOCK_64X64;
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  sf->reuse_inter_pred_sby = 0;
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  // This setting only takes effect when partition_search_type is set
  // to FIXED_PARTITION.
  sf->always_this_block_size = BLOCK_16X16;
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  sf->search_type_check_frequency = 50;
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  sf->encode_breakout_thresh = 0;
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  sf->elevate_newmv_thresh = 0;
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  // Recode loop tolerence %.
  sf->recode_tolerance = 25;
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  sf->default_interp_filter = SWITCHABLE;
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  sf->tx_size_search_breakout = 0;
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  sf->partition_search_breakout_dist_thr = 0;
  sf->partition_search_breakout_rate_thr = 0;
434

435
  if (oxcf->mode == REALTIME)
436
    set_rt_speed_feature(cpi, sf, oxcf->speed, oxcf->content);
437
438
  else if (oxcf->mode == GOOD)
    set_good_speed_feature(cpi, cm, sf, oxcf->speed);
439

440
  cpi->full_search_sad = vp9_full_search_sad;
441
442
  cpi->diamond_search_sad = oxcf->mode == BEST ? vp9_full_range_search
                                               : vp9_diamond_search_sad;
443
444
445
  cpi->refining_search_sad = vp9_refining_search_sad;


446
447
  // Slow quant, dct and trellis not worthwhile for first pass
  // so make sure they are always turned off.
448
  if (oxcf->pass == 1)
449
450
451
    sf->optimize_coefficients = 0;

  // No recode for 1 pass.
452
  if (oxcf->pass == 0) {
453
454
455
456
    sf->recode_loop = DISALLOW_RECODE;
    sf->optimize_coefficients = 0;
  }

457
  if (sf->mv.subpel_search_method == SUBPEL_TREE) {
458
    cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree;
459
460
  } else if (sf->mv.subpel_search_method == SUBPEL_TREE_PRUNED) {
    cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree_pruned;
461
462
  }

463
  cpi->mb.optimize = sf->optimize_coefficients == 1 && oxcf->pass != 1;
464
465
466

  if (sf->disable_split_mask == DISABLE_ALL_SPLIT)
    sf->adaptive_pred_interp_filter = 0;
467
468
469
470

  if (!cpi->oxcf.frame_periodic_boost) {
    sf->max_delta_qindex = 0;
  }
471
472
473
474

  if (cpi->encode_breakout && oxcf->mode == REALTIME &&
      sf->encode_breakout_thresh > cpi->encode_breakout)
    cpi->encode_breakout = sf->encode_breakout_thresh;
475
}