vp9/encoder/vp9_speed_features.c - platform/external/libvpx - Git at Google

 /*
  *  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>

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

 enum {
   INTRA_ALL       = (1 << DC_PRED) |
                     (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),
   INTRA_DC        = (1 << DC_PRED),
   INTRA_DC_TM     = (1 << DC_PRED) | (1 << TM_PRED),
   INTRA_DC_H_V    = (1 << DC_PRED) | (1 << V_PRED) | (1 << H_PRED),
   INTRA_DC_TM_H_V = (1 << DC_PRED) | (1 << TM_PRED) | (1 << V_PRED) |
                     (1 << H_PRED)
 };

 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)
 };

 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)
 };

 static void set_good_speed_feature(VP9_COMP *cpi, VP9_COMMON *cm,
                                    SPEED_FEATURES *sf, int speed) {
   sf->adaptive_rd_thresh = 1;
   sf->recode_loop = (speed < 1) ? ALLOW_RECODE : ALLOW_RECODE_KFMAXBW;
   sf->allow_skip_recode = 1;

   if (speed >= 1) {
     sf->use_square_partition_only = !frame_is_intra_only(cm);
     sf->less_rectangular_check  = 1;
     sf->tx_size_search_method = frame_is_boosted(cpi) ? USE_FULL_RD
                                                       : USE_LARGESTALL;

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

   if (speed >= 2) {
     if (MIN(cm->width, cm->height) >= 720) {
       sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
       sf->last_partitioning_redo_frequency = 3;
       sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
                                               : DISABLE_ALL_INTER_SPLIT;
       sf->adaptive_pred_interp_filter = 0;
     } else {
       sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;
       sf->last_partitioning_redo_frequency = 2;
       sf->lf_motion_threshold = NO_MOTION_THRESHOLD;
     }

     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;
     sf->auto_min_max_partition_size = RELAXED_NEIGHBORING_MIN_MAX;
     sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_LOW_MOTION;
     sf->adjust_partitioning_from_last_frame = 1;
   }

   if (speed >= 3) {
     sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
                                                         : USE_LARGESTALL;
     if (MIN(cm->width, cm->height) >= 720) {
       sf->disable_split_mask = DISABLE_ALL_SPLIT;
       sf->cb_partition_search = frame_is_boosted(cpi) ? 0 : 1;
     } else {
       sf->disable_split_mask = DISABLE_ALL_INTER_SPLIT;
     }

     sf->adaptive_pred_interp_filter = 0;
     sf->cb_pred_filter_search = 1;

     sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
     sf->last_partitioning_redo_frequency = 3;
     sf->recode_loop = ALLOW_RECODE_KFMAXBW;
     sf->adaptive_rd_thresh = 3;
     sf->mode_skip_start = 6;
     sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
     sf->use_fast_coef_costing = 1;
   }

   if (speed >= 4) {
     sf->use_square_partition_only = 1;
     sf->tx_size_search_method = USE_LARGESTALL;
     sf->disable_split_mask = DISABLE_ALL_SPLIT;
     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_lastframe_partitioning = LAST_FRAME_PARTITION_ALL;
     sf->use_lp32x32fdct = 1;
   }

   if (speed >= 5) {
     int i;

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

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

   if (speed >= 1) {
     sf->use_square_partition_only = !frame_is_intra_only(cm);
     sf->less_rectangular_check = 1;
     sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
                                                         : USE_LARGESTALL;

     if (MIN(cm->width, cm->height) >= 720)
       sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
                                               : DISABLE_ALL_INTER_SPLIT;
     else
       sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;

     sf->use_rd_breakout = 1;
     sf->adaptive_motion_search = 1;
     sf->adaptive_pred_interp_filter = 1;
     sf->mv.auto_mv_step_size = 1;
     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;
   }

   if (speed >= 2) {
     if (MIN(cm->width, cm->height) >= 720)
       sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
                                               : DISABLE_ALL_INTER_SPLIT;
     else
       sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;

     sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
                                  FLAG_SKIP_INTRA_BESTINTER |
                                  FLAG_SKIP_COMP_BESTINTRA |
                                  FLAG_SKIP_INTRA_LOWVAR;
     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;
     sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
     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;
   }

   if (speed >= 3) {
     sf->use_square_partition_only = 1;
     sf->disable_filter_search_var_thresh = 100;
     sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_ALL;
     sf->constrain_copy_partition = 1;
     sf->use_uv_intra_rd_estimate = 1;
     sf->skip_encode_sb = 1;
     sf->mv.subpel_iters_per_step = 1;
     sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
     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;
   }

   if (speed >= 4) {
     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 ==
         (frames_since_key + 1) % sf->last_partitioning_redo_frequency);
     sf->mv.subpel_force_stop = 1;
     for (i = 0; i < TX_SIZES; i++) {
       sf->intra_y_mode_mask[i] = INTRA_DC_H_V;
       sf->intra_uv_mode_mask[i] = INTRA_DC;
     }
     sf->intra_y_mode_mask[TX_32X32] = INTRA_DC;
     sf->frame_parameter_update = 0;
     sf->mv.search_method = FAST_HEX;
     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;
     sf->max_intra_bsize = BLOCK_32X32;
     sf->allow_skip_recode = 1;
   }

   if (speed >= 5) {
     sf->use_quant_fp = cm->frame_type == KEY_FRAME ? 0 : 1;
     sf->auto_min_max_partition_size = (cm->frame_type == KEY_FRAME) ?
         RELAXED_NEIGHBORING_MIN_MAX : STRICT_NEIGHBORING_MIN_MAX;
     sf->max_partition_size = BLOCK_32X32;
     sf->min_partition_size = BLOCK_8X8;
     sf->partition_check =
         (frames_since_key % sf->last_partitioning_redo_frequency == 1);
     sf->force_frame_boost = cm->frame_type == KEY_FRAME ||
         (frames_since_key %
             (sf->last_partitioning_redo_frequency << 1) == 1);
     sf->max_delta_qindex = (cm->frame_type == KEY_FRAME) ? 20 : 15;
     sf->partition_search_type = REFERENCE_PARTITION;
     sf->use_nonrd_pick_mode = 1;
     sf->allow_skip_recode = 0;
   }

   if (speed >= 6) {
     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;
     }

     // Adaptively switch between SOURCE_VAR_BASED_PARTITION and FIXED_PARTITION.
     sf->partition_search_type = SOURCE_VAR_BASED_PARTITION;
     sf->search_type_check_frequency = 50;

     sf->tx_size_search_method = (cm->frame_type == KEY_FRAME) ?
         USE_LARGESTALL : USE_TX_8X8;
     sf->max_intra_bsize = BLOCK_8X8;

     // This feature is only enabled when partition search is disabled.
     sf->reuse_inter_pred_sby = 1;

     // Increase mode checking threshold for NEWMV.
     sf->elevate_newmv_thresh = 2000;

     sf->mv.reduce_first_step_size = 1;
   }
   if (speed >= 7) {
     sf->mv.search_method = FAST_DIAMOND;
     sf->mv.fullpel_search_step_param = 10;
     sf->lpf_pick = LPF_PICK_MINIMAL_LPF;
     sf->encode_breakout_thresh = (MIN(cm->width, cm->height) >= 720) ?
         800 : 300;
     sf->elevate_newmv_thresh = 2500;
   }
   if (speed >= 12) {
     sf->elevate_newmv_thresh = 4000;
     sf->mv.subpel_force_stop = 2;
   }
   if (speed >= 13) {
     int i;
     sf->max_intra_bsize = BLOCK_32X32;
     for (i = 0; i < BLOCK_SIZES; ++i)
       sf->inter_mode_mask[i] = INTER_NEAREST;
   }
 }

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

   // best quality defaults
   sf->frame_parameter_update = 1;
   sf->mv.search_method = NSTEP;
   sf->recode_loop = ALLOW_RECODE;
   sf->mv.subpel_search_method = SUBPEL_TREE;
   sf->mv.subpel_iters_per_step = 2;
   sf->mv.subpel_force_stop = 0;
   sf->optimize_coefficients = !is_lossless_requested(&cpi->oxcf);
   sf->mv.reduce_first_step_size = 0;
   sf->mv.auto_mv_step_size = 0;
   sf->mv.fullpel_search_step_param = 6;
   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;
   sf->cb_pred_filter_search = 0;
   sf->cb_partition_search = 0;
   sf->use_quant_fp = 0;
   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;
   sf->constrain_copy_partition = 0;
   sf->disable_split_mask = 0;
   sf->mode_search_skip_flags = 0;
   sf->force_frame_boost = 0;
   sf->max_delta_qindex = 0;
   sf->disable_split_var_thresh = 0;
   sf->disable_filter_search_var_thresh = 0;
   for (i = 0; i < TX_SIZES; i++) {
     sf->intra_y_mode_mask[i] = INTRA_ALL;
     sf->intra_uv_mode_mask[i] = INTRA_ALL;
   }
   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;
   sf->use_fast_coef_updates = TWO_LOOP;
   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)
     sf->inter_mode_mask[i] = INTER_ALL;
   sf->max_intra_bsize = BLOCK_64X64;
   sf->reuse_inter_pred_sby = 0;
   // This setting only takes effect when partition_search_type is set
   // to FIXED_PARTITION.
   sf->always_this_block_size = BLOCK_16X16;
   sf->search_type_check_frequency = 50;
   sf->encode_breakout_thresh = 0;
   sf->elevate_newmv_thresh = 0;
   // Recode loop tolerence %.
   sf->recode_tolerance = 25;
   sf->default_interp_filter = SWITCHABLE;

   if (oxcf->mode == REALTIME) {
     set_rt_speed_feature(cpi, sf, oxcf->speed, oxcf->content);
   } else {
     if (!is_best_mode(oxcf->mode))
       set_good_speed_feature(cpi, cm, sf, oxcf->speed);
   }

   cpi->full_search_sad = vp9_full_search_sad;
   cpi->diamond_search_sad = is_best_mode(oxcf->mode) ? vp9_full_range_search
                                                      : vp9_diamond_search_sad;
   cpi->refining_search_sad = vp9_refining_search_sad;


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

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

   if (sf->mv.subpel_search_method == SUBPEL_TREE) {
     cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree;
   }

   cpi->mb.optimize = sf->optimize_coefficients == 1 && oxcf->pass != 1;

   if (sf->disable_split_mask == DISABLE_ALL_SPLIT)
     sf->adaptive_pred_interp_filter = 0;

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

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

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

	enum {
	INTRA_ALL = (1 << DC_PRED) \|
	(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),
	INTRA_DC = (1 << DC_PRED),
	INTRA_DC_TM = (1 << DC_PRED) \| (1 << TM_PRED),
	INTRA_DC_H_V = (1 << DC_PRED) \| (1 << V_PRED) \| (1 << H_PRED),
	INTRA_DC_TM_H_V = (1 << DC_PRED) \| (1 << TM_PRED) \| (1 << V_PRED) \|
	(1 << H_PRED)
	};

	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)
	};

	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)
	};

	static void set_good_speed_feature(VP9_COMP cpi, VP9_COMMON cm,
	SPEED_FEATURES *sf, int speed) {
	sf->adaptive_rd_thresh = 1;
	sf->recode_loop = (speed < 1) ? ALLOW_RECODE : ALLOW_RECODE_KFMAXBW;
	sf->allow_skip_recode = 1;

	if (speed >= 1) {
	sf->use_square_partition_only = !frame_is_intra_only(cm);
	sf->less_rectangular_check = 1;
	sf->tx_size_search_method = frame_is_boosted(cpi) ? USE_FULL_RD
	: USE_LARGESTALL;

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

	if (speed >= 2) {
	if (MIN(cm->width, cm->height) >= 720) {
	sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
	sf->last_partitioning_redo_frequency = 3;
	sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
	: DISABLE_ALL_INTER_SPLIT;
	sf->adaptive_pred_interp_filter = 0;
	} else {
	sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;
	sf->last_partitioning_redo_frequency = 2;
	sf->lf_motion_threshold = NO_MOTION_THRESHOLD;
	}

	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;
	sf->auto_min_max_partition_size = RELAXED_NEIGHBORING_MIN_MAX;
	sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_LOW_MOTION;
	sf->adjust_partitioning_from_last_frame = 1;
	}

	if (speed >= 3) {
	sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
	: USE_LARGESTALL;
	if (MIN(cm->width, cm->height) >= 720) {
	sf->disable_split_mask = DISABLE_ALL_SPLIT;
	sf->cb_partition_search = frame_is_boosted(cpi) ? 0 : 1;
	} else {
	sf->disable_split_mask = DISABLE_ALL_INTER_SPLIT;
	}

	sf->adaptive_pred_interp_filter = 0;
	sf->cb_pred_filter_search = 1;

	sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
	sf->last_partitioning_redo_frequency = 3;
	sf->recode_loop = ALLOW_RECODE_KFMAXBW;
	sf->adaptive_rd_thresh = 3;
	sf->mode_skip_start = 6;
	sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
	sf->use_fast_coef_costing = 1;
	}

	if (speed >= 4) {
	sf->use_square_partition_only = 1;
	sf->tx_size_search_method = USE_LARGESTALL;
	sf->disable_split_mask = DISABLE_ALL_SPLIT;
	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_lastframe_partitioning = LAST_FRAME_PARTITION_ALL;
	sf->use_lp32x32fdct = 1;
	}

	if (speed >= 5) {
	int i;

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

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

	if (speed >= 1) {
	sf->use_square_partition_only = !frame_is_intra_only(cm);
	sf->less_rectangular_check = 1;
	sf->tx_size_search_method = frame_is_intra_only(cm) ? USE_FULL_RD
	: USE_LARGESTALL;

	if (MIN(cm->width, cm->height) >= 720)
	sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
	: DISABLE_ALL_INTER_SPLIT;
	else
	sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;

	sf->use_rd_breakout = 1;
	sf->adaptive_motion_search = 1;
	sf->adaptive_pred_interp_filter = 1;
	sf->mv.auto_mv_step_size = 1;
	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;
	}

	if (speed >= 2) {
	if (MIN(cm->width, cm->height) >= 720)
	sf->disable_split_mask = cm->show_frame ? DISABLE_ALL_SPLIT
	: DISABLE_ALL_INTER_SPLIT;
	else
	sf->disable_split_mask = LAST_AND_INTRA_SPLIT_ONLY;

	sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH \|
	FLAG_SKIP_INTRA_BESTINTER \|
	FLAG_SKIP_COMP_BESTINTRA \|
	FLAG_SKIP_INTRA_LOWVAR;
	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;
	sf->lf_motion_threshold = LOW_MOTION_THRESHOLD;
	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;
	}

	if (speed >= 3) {
	sf->use_square_partition_only = 1;
	sf->disable_filter_search_var_thresh = 100;
	sf->use_lastframe_partitioning = LAST_FRAME_PARTITION_ALL;
	sf->constrain_copy_partition = 1;
	sf->use_uv_intra_rd_estimate = 1;
	sf->skip_encode_sb = 1;
	sf->mv.subpel_iters_per_step = 1;
	sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
	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;
	}

	if (speed >= 4) {
	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 ==
	(frames_since_key + 1) % sf->last_partitioning_redo_frequency);
	sf->mv.subpel_force_stop = 1;
	for (i = 0; i < TX_SIZES; i++) {
	sf->intra_y_mode_mask[i] = INTRA_DC_H_V;
	sf->intra_uv_mode_mask[i] = INTRA_DC;
	}
	sf->intra_y_mode_mask[TX_32X32] = INTRA_DC;
	sf->frame_parameter_update = 0;
	sf->mv.search_method = FAST_HEX;
	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;
	sf->max_intra_bsize = BLOCK_32X32;
	sf->allow_skip_recode = 1;
	}

	if (speed >= 5) {
	sf->use_quant_fp = cm->frame_type == KEY_FRAME ? 0 : 1;
	sf->auto_min_max_partition_size = (cm->frame_type == KEY_FRAME) ?
	RELAXED_NEIGHBORING_MIN_MAX : STRICT_NEIGHBORING_MIN_MAX;
	sf->max_partition_size = BLOCK_32X32;
	sf->min_partition_size = BLOCK_8X8;
	sf->partition_check =
	(frames_since_key % sf->last_partitioning_redo_frequency == 1);
	sf->force_frame_boost = cm->frame_type == KEY_FRAME \|\|
	(frames_since_key %
	(sf->last_partitioning_redo_frequency << 1) == 1);
	sf->max_delta_qindex = (cm->frame_type == KEY_FRAME) ? 20 : 15;
	sf->partition_search_type = REFERENCE_PARTITION;
	sf->use_nonrd_pick_mode = 1;
	sf->allow_skip_recode = 0;
	}

	if (speed >= 6) {
	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;
	}

	// Adaptively switch between SOURCE_VAR_BASED_PARTITION and FIXED_PARTITION.
	sf->partition_search_type = SOURCE_VAR_BASED_PARTITION;
	sf->search_type_check_frequency = 50;

	sf->tx_size_search_method = (cm->frame_type == KEY_FRAME) ?
	USE_LARGESTALL : USE_TX_8X8;
	sf->max_intra_bsize = BLOCK_8X8;

	// This feature is only enabled when partition search is disabled.
	sf->reuse_inter_pred_sby = 1;

	// Increase mode checking threshold for NEWMV.
	sf->elevate_newmv_thresh = 2000;

	sf->mv.reduce_first_step_size = 1;
	}
	if (speed >= 7) {
	sf->mv.search_method = FAST_DIAMOND;
	sf->mv.fullpel_search_step_param = 10;
	sf->lpf_pick = LPF_PICK_MINIMAL_LPF;
	sf->encode_breakout_thresh = (MIN(cm->width, cm->height) >= 720) ?
	800 : 300;
	sf->elevate_newmv_thresh = 2500;
	}
	if (speed >= 12) {
	sf->elevate_newmv_thresh = 4000;
	sf->mv.subpel_force_stop = 2;
	}
	if (speed >= 13) {
	int i;
	sf->max_intra_bsize = BLOCK_32X32;
	for (i = 0; i < BLOCK_SIZES; ++i)
	sf->inter_mode_mask[i] = INTER_NEAREST;
	}
	}

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

	// best quality defaults
	sf->frame_parameter_update = 1;
	sf->mv.search_method = NSTEP;
	sf->recode_loop = ALLOW_RECODE;
	sf->mv.subpel_search_method = SUBPEL_TREE;
	sf->mv.subpel_iters_per_step = 2;
	sf->mv.subpel_force_stop = 0;
	sf->optimize_coefficients = !is_lossless_requested(&cpi->oxcf);
	sf->mv.reduce_first_step_size = 0;
	sf->mv.auto_mv_step_size = 0;
	sf->mv.fullpel_search_step_param = 6;
	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;
	sf->cb_pred_filter_search = 0;
	sf->cb_partition_search = 0;
	sf->use_quant_fp = 0;
	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;
	sf->constrain_copy_partition = 0;
	sf->disable_split_mask = 0;
	sf->mode_search_skip_flags = 0;
	sf->force_frame_boost = 0;
	sf->max_delta_qindex = 0;
	sf->disable_split_var_thresh = 0;
	sf->disable_filter_search_var_thresh = 0;
	for (i = 0; i < TX_SIZES; i++) {
	sf->intra_y_mode_mask[i] = INTRA_ALL;
	sf->intra_uv_mode_mask[i] = INTRA_ALL;
	}
	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;
	sf->use_fast_coef_updates = TWO_LOOP;
	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)
	sf->inter_mode_mask[i] = INTER_ALL;
	sf->max_intra_bsize = BLOCK_64X64;
	sf->reuse_inter_pred_sby = 0;
	// This setting only takes effect when partition_search_type is set
	// to FIXED_PARTITION.
	sf->always_this_block_size = BLOCK_16X16;
	sf->search_type_check_frequency = 50;
	sf->encode_breakout_thresh = 0;
	sf->elevate_newmv_thresh = 0;
	// Recode loop tolerence %.
	sf->recode_tolerance = 25;
	sf->default_interp_filter = SWITCHABLE;

	if (oxcf->mode == REALTIME) {
	set_rt_speed_feature(cpi, sf, oxcf->speed, oxcf->content);
	} else {
	if (!is_best_mode(oxcf->mode))
	set_good_speed_feature(cpi, cm, sf, oxcf->speed);
	}

	cpi->full_search_sad = vp9_full_search_sad;
	cpi->diamond_search_sad = is_best_mode(oxcf->mode) ? vp9_full_range_search
	: vp9_diamond_search_sad;
	cpi->refining_search_sad = vp9_refining_search_sad;


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

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

	if (sf->mv.subpel_search_method == SUBPEL_TREE) {
	cpi->find_fractional_mv_step = vp9_find_best_sub_pixel_tree;
	}

	cpi->mb.optimize = sf->optimize_coefficients == 1 && oxcf->pass != 1;

	if (sf->disable_split_mask == DISABLE_ALL_SPLIT)
	sf->adaptive_pred_interp_filter = 0;

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

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