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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AV1_ENCODER_SPEED_FEATURES_H_
#define AV1_ENCODER_SPEED_FEATURES_H_
#include "av1/common/enums.h"
#ifdef __cplusplus
extern "C" {
#endif
enum {
INTRA_ALL = (1 << DC_PRED) | (1 << V_PRED) | (1 << H_PRED) | (1 << D45_PRED) |
(1 << D135_PRED) | (1 << D113_PRED) | (1 << D157_PRED) |
(1 << D203_PRED) | (1 << D67_PRED) | (1 << SMOOTH_PRED) |
(1 << SMOOTH_V_PRED) | (1 << SMOOTH_H_PRED) | (1 << PAETH_PRED),
UV_INTRA_ALL =
(1 << UV_DC_PRED) | (1 << UV_V_PRED) | (1 << UV_H_PRED) |
(1 << UV_D45_PRED) | (1 << UV_D135_PRED) | (1 << UV_D113_PRED) |
(1 << UV_D157_PRED) | (1 << UV_D203_PRED) | (1 << UV_D67_PRED) |
(1 << UV_SMOOTH_PRED) | (1 << UV_SMOOTH_V_PRED) |
(1 << UV_SMOOTH_H_PRED) | (1 << UV_PAETH_PRED) | (1 << UV_CFL_PRED),
UV_INTRA_DC = (1 << UV_DC_PRED),
UV_INTRA_DC_CFL = (1 << UV_DC_PRED) | (1 << UV_CFL_PRED),
UV_INTRA_DC_TM = (1 << UV_DC_PRED) | (1 << UV_PAETH_PRED),
UV_INTRA_DC_PAETH_CFL =
(1 << UV_DC_PRED) | (1 << UV_PAETH_PRED) | (1 << UV_CFL_PRED),
UV_INTRA_DC_H_V = (1 << UV_DC_PRED) | (1 << UV_V_PRED) | (1 << UV_H_PRED),
UV_INTRA_DC_H_V_CFL = (1 << UV_DC_PRED) | (1 << UV_V_PRED) |
(1 << UV_H_PRED) | (1 << UV_CFL_PRED),
UV_INTRA_DC_PAETH_H_V = (1 << UV_DC_PRED) | (1 << UV_PAETH_PRED) |
(1 << UV_V_PRED) | (1 << UV_H_PRED),
UV_INTRA_DC_PAETH_H_V_CFL = (1 << UV_DC_PRED) | (1 << UV_PAETH_PRED) |
(1 << UV_V_PRED) | (1 << UV_H_PRED) |
(1 << UV_CFL_PRED),
INTRA_DC = (1 << DC_PRED),
INTRA_DC_TM = (1 << DC_PRED) | (1 << PAETH_PRED),
INTRA_DC_H_V = (1 << DC_PRED) | (1 << V_PRED) | (1 << H_PRED),
INTRA_DC_PAETH_H_V =
(1 << DC_PRED) | (1 << PAETH_PRED) | (1 << V_PRED) | (1 << H_PRED)
};
enum {
INTER_ALL = (1 << NEARESTMV) | (1 << NEARMV) | (1 << GLOBALMV) |
(1 << NEWMV) | (1 << NEAREST_NEARESTMV) | (1 << NEAR_NEARMV) |
(1 << NEW_NEWMV) | (1 << NEAREST_NEWMV) | (1 << NEAR_NEWMV) |
(1 << NEW_NEARMV) | (1 << NEW_NEARESTMV) | (1 << GLOBAL_GLOBALMV),
INTER_NEAREST = (1 << NEARESTMV) | (1 << NEAREST_NEARESTMV) |
(1 << NEW_NEARESTMV) | (1 << NEAREST_NEWMV),
INTER_NEAREST_NEW = (1 << NEARESTMV) | (1 << NEWMV) |
(1 << NEAREST_NEARESTMV) | (1 << NEW_NEWMV) |
(1 << NEW_NEARESTMV) | (1 << NEAREST_NEWMV) |
(1 << NEW_NEARMV) | (1 << NEAR_NEWMV),
INTER_NEAREST_ZERO = (1 << NEARESTMV) | (1 << GLOBALMV) |
(1 << NEAREST_NEARESTMV) | (1 << GLOBAL_GLOBALMV) |
(1 << NEAREST_NEWMV) | (1 << NEW_NEARESTMV),
INTER_NEAREST_NEW_ZERO = (1 << NEARESTMV) | (1 << GLOBALMV) | (1 << NEWMV) |
(1 << NEAREST_NEARESTMV) | (1 << GLOBAL_GLOBALMV) |
(1 << NEW_NEWMV) | (1 << NEW_NEARESTMV) |
(1 << NEAREST_NEWMV) | (1 << NEW_NEARMV) |
(1 << NEAR_NEWMV),
INTER_NEAREST_NEAR_NEW = (1 << NEARESTMV) | (1 << NEARMV) | (1 << NEWMV) |
(1 << NEAREST_NEARESTMV) | (1 << NEW_NEWMV) |
(1 << NEW_NEARESTMV) | (1 << NEAREST_NEWMV) |
(1 << NEW_NEARMV) | (1 << NEAR_NEWMV) |
(1 << NEAR_NEARMV),
INTER_NEAREST_NEAR_ZERO = (1 << NEARESTMV) | (1 << NEARMV) | (1 << GLOBALMV) |
(1 << NEAREST_NEARESTMV) | (1 << GLOBAL_GLOBALMV) |
(1 << NEAREST_NEWMV) | (1 << NEW_NEARESTMV) |
(1 << NEW_NEARMV) | (1 << NEAR_NEWMV) |
(1 << NEAR_NEARMV),
};
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)
};
typedef enum {
TXFM_CODING_SF = 1,
INTER_PRED_SF = 2,
INTRA_PRED_SF = 4,
PARTITION_SF = 8,
LOOP_FILTER_SF = 16,
RD_SKIP_SF = 32,
RESERVE_2_SF = 64,
RESERVE_3_SF = 128,
} DEV_SPEED_FEATURES;
typedef enum {
DIAMOND = 0,
NSTEP = 1,
HEX = 2,
BIGDIA = 3,
SQUARE = 4,
FAST_HEX = 5,
FAST_DIAMOND = 6
} SEARCH_METHODS;
typedef enum {
// No recode.
DISALLOW_RECODE = 0,
// Allow recode for KF and exceeding maximum frame bandwidth.
ALLOW_RECODE_KFMAXBW = 1,
// Allow recode only for KF/ARF/GF frames.
ALLOW_RECODE_KFARFGF = 2,
// Allow recode for all frames based on bitrate constraints.
ALLOW_RECODE = 3,
} RECODE_LOOP_TYPE;
typedef enum {
SUBPEL_TREE = 0,
SUBPEL_TREE_PRUNED = 1, // Prunes 1/2-pel searches
SUBPEL_TREE_PRUNED_MORE = 2, // Prunes 1/2-pel searches more aggressively
SUBPEL_TREE_PRUNED_EVENMORE = 3, // Prunes 1/2- and 1/4-pel searches
// Other methods to come
} SUBPEL_SEARCH_METHODS;
typedef enum {
NO_MOTION_THRESHOLD = 0,
LOW_MOTION_THRESHOLD = 7
} MOTION_THRESHOLD;
typedef enum {
USE_FULL_RD = 0,
USE_FAST_RD,
USE_LARGESTALL,
} TX_SIZE_SEARCH_METHOD;
typedef enum {
NOT_IN_USE = 0,
RELAXED_NEIGHBORING_MIN_MAX = 1
} AUTO_MIN_MAX_MODE;
typedef enum {
// Try the full image with different values.
LPF_PICK_FROM_FULL_IMAGE,
// Try a small portion of the image with different values.
LPF_PICK_FROM_SUBIMAGE,
// Estimate the level based on quantizer and frame type
LPF_PICK_FROM_Q,
// Pick 0 to disable LPF if LPF was enabled last frame
LPF_PICK_MINIMAL_LPF
} LPF_PICK_METHOD;
typedef enum {
// Terminate search early based on distortion so far compared to
// qp step, distortion in the neighborhood of the frame, etc.
FLAG_EARLY_TERMINATE = 1 << 0,
// Skips comp inter modes if the best so far is an intra mode.
FLAG_SKIP_COMP_BESTINTRA = 1 << 1,
// Skips oblique intra modes if the best so far is an inter mode.
FLAG_SKIP_INTRA_BESTINTER = 1 << 3,
// Skips oblique intra modes at angles 27, 63, 117, 153 if the best
// intra so far is not one of the neighboring directions.
FLAG_SKIP_INTRA_DIRMISMATCH = 1 << 4,
// Skips intra modes other than DC_PRED if the source variance is small
FLAG_SKIP_INTRA_LOWVAR = 1 << 5,
} MODE_SEARCH_SKIP_LOGIC;
typedef enum {
FLAG_SKIP_EIGHTTAP_REGULAR = 1 << EIGHTTAP_REGULAR,
FLAG_SKIP_EIGHTTAP_SMOOTH = 1 << EIGHTTAP_SMOOTH,
FLAG_SKIP_MULTITAP_SHARP = 1 << MULTITAP_SHARP,
} INTERP_FILTER_MASK;
typedef enum {
NO_PRUNE = 0,
// eliminates one tx type in vertical and horizontal direction
PRUNE_ONE = 1,
// eliminates two tx types in each direction
PRUNE_TWO = 2,
// adaptively prunes the least perspective tx types out of all 16
// (tuned to provide negligible quality loss)
PRUNE_2D_ACCURATE = 3,
// similar, but applies much more aggressive pruning to get better speed-up
PRUNE_2D_FAST = 4,
} TX_TYPE_PRUNE_MODE;
typedef struct {
TX_TYPE_PRUNE_MODE prune_mode;
int fast_intra_tx_type_search;
int fast_inter_tx_type_search;
// Use a skip flag prediction model to detect blocks with skip = 1 early
// and avoid doing full TX type search for such blocks.
int use_skip_flag_prediction;
// Threshold used by the ML based method to predict TX block split decisions.
int ml_tx_split_thresh;
// skip remaining transform type search when we found the rdcost of skip is
// better than applying transform
int skip_tx_search;
} TX_TYPE_SEARCH;
typedef enum {
// Search partitions using RD criterion
SEARCH_PARTITION,
// Always use a fixed size partition
FIXED_PARTITION,
REFERENCE_PARTITION
} PARTITION_SEARCH_TYPE;
typedef enum {
// Does a dry run to see if any of the contexts need to be updated or not,
// before the final run.
TWO_LOOP = 0,
// No dry run, also only half the coef contexts and bands are updated.
// The rest are not updated at all.
ONE_LOOP_REDUCED = 1
} FAST_COEFF_UPDATE;
typedef struct MV_SPEED_FEATURES {
// Motion search method (Diamond, NSTEP, Hex, Big Diamond, Square, etc).
SEARCH_METHODS search_method;
// This parameter controls which step in the n-step process we start at.
// It's changed adaptively based on circumstances.
int reduce_first_step_size;
// If this is set to 1, we limit the motion search range to 2 times the
// largest motion vector found in the last frame.
int auto_mv_step_size;
// Subpel_search_method can only be subpel_tree which does a subpixel
// logarithmic search that keeps stepping at 1/2 pixel units until
// you stop getting a gain, and then goes on to 1/4 and repeats
// the same process. Along the way it skips many diagonals.
SUBPEL_SEARCH_METHODS subpel_search_method;
// Maximum number of steps in logarithmic subpel search before giving up.
int subpel_iters_per_step;
// Control when to stop subpel search
int subpel_force_stop;
// This variable sets the step_param used in full pel motion search.
int fullpel_search_step_param;
} MV_SPEED_FEATURES;
#define MAX_MESH_STEP 4
typedef struct MESH_PATTERN {
int range;
int interval;
} MESH_PATTERN;
typedef enum {
GM_FULL_SEARCH,
GM_REDUCED_REF_SEARCH,
GM_DISABLE_SEARCH
} GM_SEARCH_TYPE;
typedef enum {
GM_ERRORADV_TR_0,
GM_ERRORADV_TR_1,
GM_ERRORADV_TR_2,
GM_ERRORADV_TR_TYPES,
} GM_ERRORADV_TYPE;
typedef enum {
NO_TRELLIS_OPT, // No trellis optimization
FULL_TRELLIS_OPT, // Trellis optimization in all stages
FINAL_PASS_TRELLIS_OPT // Trellis optimization in only the final encode pass
} TRELLIS_OPT_TYPE;
typedef enum {
FULL_TXFM_RD,
LOW_TXFM_RD,
} TXFM_RD_MODEL;
typedef struct SPEED_FEATURES {
MV_SPEED_FEATURES mv;
// Frame level coding parameter update
int frame_parameter_update;
RECODE_LOOP_TYPE recode_loop;
// Trellis (dynamic programming) optimization of quantized values
TRELLIS_OPT_TYPE optimize_coefficients;
// Global motion warp error threshold
GM_ERRORADV_TYPE gm_erroradv_type;
// Always set to 0. If on it enables 0 cost background transmission
// (except for the initial transmission of the segmentation). The feature is
// disabled because the addition of very large block sizes make the
// backgrounds very to cheap to encode, and the segmentation we have
// adds overhead.
int static_segmentation;
// Limit the inter mode tested in the RD loop
int reduce_inter_modes;
// Do not compute the global motion parameters for a LAST2_FRAME or
// LAST3_FRAME if the GOLDEN_FRAME is closer and it has a non identity
// global model.
int selective_ref_gm;
// If 1 we iterate finding a best reference for 2 ref frames together - via
// a log search that iterates 4 times (check around mv for last for best
// error of combined predictor then check around mv for alt). If 0 we
// we just use the best motion vector found for each frame by itself.
BLOCK_SIZE comp_inter_joint_search_thresh;
// This variable is used to cap the maximum number of times we skip testing a
// mode to be evaluated. A high value means we will be faster.
int adaptive_rd_thresh;
// Coefficient probability model approximation step size
int coeff_prob_appx_step;
// The threshold is to determine how slow the motino is, it is used when
// use_lastframe_partitioning is set to LAST_FRAME_PARTITION_LOW_MOTION
MOTION_THRESHOLD lf_motion_threshold;
// Determine which method we use to determine transform size. We can choose
// between options like full rd, largest for prediction size, largest
// for intra and model coefs for the rest.
TX_SIZE_SEARCH_METHOD tx_size_search_method;
// Init search depth for square and rectangular transform partitions.
// Values:
// 0 - search full tree, 1: search 1 level, 2: search the highest level only
int inter_tx_size_search_init_depth_sqr;
int inter_tx_size_search_init_depth_rect;
int intra_tx_size_search_init_depth_sqr;
int intra_tx_size_search_init_depth_rect;
// If any dimension of a coding block size above 64, always search the
// largest transform only, since the largest transform block size is 64x64.
int tx_size_search_lgr_block;
// After looking at the first set of modes (set by index here), skip
// checking modes for reference frames that don't match the reference frame
// of the best so far.
int mode_skip_start;
PARTITION_SEARCH_TYPE partition_search_type;
TX_TYPE_SEARCH tx_type_search;
// Skip split transform block partition when the collocated bigger block
// is selected as all zero coefficients.
int txb_split_cap;
// Shortcut the transform block partition and type search when the target
// rdcost is relatively lower.
// Values are 0 (not used) , or 1 - 2 with progressively increasing
// aggressiveness
int adaptive_txb_search_level;
// Prune level for tx_size_type search for inter based on rd model
// 0: no pruning
// 1-2: progressively increasing aggressiveness of pruning
int model_based_prune_tx_search_level;
// Model based breakout after interpolation filter search
// 0: no breakout
// 1: use model based rd breakout
int model_based_post_interp_filter_breakout;
// Used if partition_search_type = FIXED_SIZE_PARTITION
BLOCK_SIZE always_this_block_size;
// Drop less likely to be picked reference frames in the RD search.
// Has three levels for now: 0, 1 and 2, where higher levels prune more
// aggressively than lower ones. (0 means no pruning).
int selective_ref_frame;
// Prune extended partition types search
// Can take values 0 - 2, 0 referring to no pruning, and 1 - 2 increasing
// aggressiveness of pruning in order.
int prune_ext_partition_types_search_level;
// Use a ML model to prune horz_a, horz_b, vert_a and vert_b partitions.
int ml_prune_ab_partition;
int fast_cdef_search;
// 2-pass coding block partition search
int two_pass_partition_search;
// Use the mode decisions made in the initial partition search to prune mode
// candidates, e.g. ref frames.
int mode_pruning_based_on_two_pass_partition_search;
// Skip rectangular partition test when partition type none gives better
// rd than partition type split.
int less_rectangular_check;
// Disable testing non square partitions. (eg 16x32)
int use_square_partition_only;
// Sets min and max partition sizes for this superblock based on the
// same superblock in last encoded frame, and the left and above neighbor.
AUTO_MIN_MAX_MODE auto_min_max_partition_size;
// Ensures the rd based auto partition search will always
// go down at least to the specified level.
BLOCK_SIZE rd_auto_partition_min_limit;
// Min and max partition size we enable (block_size) as per auto
// min max, but also used by adjust partitioning, and pick_partitioning.
BLOCK_SIZE default_min_partition_size;
BLOCK_SIZE default_max_partition_size;
// Whether or not we allow partitions one smaller or one greater than the last
// frame's partitioning. Only used if use_lastframe_partitioning is set.
int adjust_partitioning_from_last_frame;
// How frequently we re do the partitioning from scratch. Only used if
// use_lastframe_partitioning is set.
int last_partitioning_redo_frequency;
// Disables sub 8x8 blocksizes in different scenarios: Choices are to disable
// it always, to allow it for only Last frame and Intra, disable it for all
// inter modes or to enable it always.
int disable_split_mask;
// TODO(jingning): combine the related motion search speed features
// This allows us to use motion search at other sizes as a starting
// point for this motion search and limits the search range around it.
int adaptive_motion_search;
// Flag for allowing some use of exhaustive searches;
int allow_exhaustive_searches;
// Threshold for allowing exhaistive motion search.
int exhaustive_searches_thresh;
// Maximum number of exhaustive searches for a frame.
int max_exaustive_pct;
// Pattern to be used for any exhaustive mesh searches.
MESH_PATTERN mesh_patterns[MAX_MESH_STEP];
int schedule_mode_search;
// Allows sub 8x8 modes to use the prediction filter that was determined
// best for 8x8 mode. If set to 0 we always re check all the filters for
// sizes less than 8x8, 1 means we check all filter modes if no 8x8 filter
// was selected, and 2 means we use 8 tap if no 8x8 filter mode was selected.
int adaptive_pred_interp_filter;
// Adaptive prediction mode search
int adaptive_mode_search;
// Chessboard pattern prediction filter type search
int cb_pred_filter_search;
int cb_partition_search;
int alt_ref_search_fp;
// Use finer quantizer in every other few frames that run variable block
// partition type search.
int force_frame_boost;
// Maximally allowed base quantization index fluctuation.
int max_delta_qindex;
// Implements various heuristics to skip searching modes
// The heuristics selected are based on flags
// defined in the MODE_SEARCH_SKIP_HEURISTICS enum
unsigned int mode_search_skip_flags;
// A source variance threshold below which filter search is disabled
// Choose a very large value (UINT_MAX) to use 8-tap always
unsigned int disable_filter_search_var_thresh;
// A source variance threshold below which wedge search is disabled
unsigned int disable_wedge_search_var_thresh;
// Whether fast wedge sign estimate is used
int fast_wedge_sign_estimate;
// These bit masks allow you to enable or disable intra modes for each
// transform size separately.
int intra_y_mode_mask[TX_SIZES];
int intra_uv_mode_mask[TX_SIZES];
// This variable enables an early break out of mode testing if the model for
// rd built from the prediction signal indicates a value that's much
// higher than the best rd we've seen so far.
int use_rd_breakout;
// This feature controls how the loop filter level is determined.
LPF_PICK_METHOD lpf_pick;
// This feature limits the number of coefficients updates we actually do
// by only looking at counts from 1/2 the bands.
FAST_COEFF_UPDATE use_fast_coef_updates;
// A binary mask indicating if NEARESTMV, NEARMV, GLOBALMV, NEWMV
// modes are used in order from LSB to MSB for each BLOCK_SIZE.
int inter_mode_mask[BLOCK_SIZES_ALL];
// This feature controls whether we do the expensive context update and
// calculation in the rd coefficient costing loop.
int use_fast_coef_costing;
// This feature controls the tolerence vs target used in deciding whether to
// recode a frame. It has no meaning if recode is disabled.
int recode_tolerance;
// This variable controls the maximum block size where intra blocks can be
// used in inter frames.
// TODO(aconverse): Fold this into one of the other many mode skips
BLOCK_SIZE max_intra_bsize;
// The frequency that we check if
// FIXED_PARTITION search type should be used.
int search_type_check_frequency;
// When partition is pre-set, the inter prediction result from pick_inter_mode
// can be reused in final block encoding process. It is enabled only for real-
// time mode speed 6.
int reuse_inter_pred_sby;
// default interp filter choice
InterpFilter default_interp_filter;
// adaptive interp_filter search to allow skip of certain filter types.
int adaptive_interp_filter_search;
// mask for skip evaluation of certain interp_filter type.
INTERP_FILTER_MASK interp_filter_search_mask;
// Partition search early breakout thresholds.
int64_t partition_search_breakout_dist_thr;
int partition_search_breakout_rate_thr;
// Allow skipping partition search for still image frame
int allow_partition_search_skip;
// Fast approximation of av1_model_rd_from_var_lapndz
int simple_model_rd_from_var;
// If true, sub-pixel search uses the exact convolve function used for final
// encoding and decoding; otherwise, it uses bilinear interpolation.
int use_accurate_subpel_search;
// Whether to compute distortion in the image domain (slower but
// more accurate), or in the transform domain (faster but less acurate).
// 0: use image domain
// 1: use transform domain in tx_type search, and use image domain for
// RD_STATS
// 2: use transform domain
int use_transform_domain_distortion;
GM_SEARCH_TYPE gm_search_type;
// Do limited interpolation filter search for dual filters, since best choice
// usually includes EIGHTTAP_REGULAR.
int use_fast_interpolation_filter_search;
// Save results of interpolation_filter_search for a block
// Check mv and ref_frames before search, if they are same with previous
// saved results, it can be skipped.
int skip_repeat_interpolation_filter_search;
// Use a hash table to store previously computed optimized qcoeffs from
// expensive calls to optimize_txb.
int use_hash_based_trellis;
// flag to drop some ref frames in compound motion search
int drop_ref;
// flag to allow skipping intra mode for inter frame prediction
int skip_intra_in_interframe;
// Use hash table to store intra(keyframe only) txb transform search results
// to avoid repeated search on the same residue signal.
int use_intra_txb_hash;
// Use hash table to store inter txb transform search results
// to avoid repeated search on the same residue signal.
int use_inter_txb_hash;
// Use hash table to store macroblock RD search results
// to avoid repeated search on the same residue signal.
int use_mb_rd_hash;
// Calculate RD cost before doing optimize_b, and skip if the cost is large.
int optimize_b_precheck;
// Use model rd instead of transform search in jnt_comp
int jnt_comp_fast_tx_search;
// Skip mv search in jnt_comp
int jnt_comp_skip_mv_search;
// Decoder side speed feature to add penalty for use of dual-sgr filters.
// Takes values 0 - 10, 0 indicating no penalty and each additional level
// adding a penalty of 1%
int dual_sgr_penalty_level;
// Dynamically estimate final rd from prediction error and mode cost
int inter_mode_rd_model_estimation;
} SPEED_FEATURES;
struct AV1_COMP;
void av1_set_speed_features_framesize_independent(struct AV1_COMP *cpi);
void av1_set_speed_features_framesize_dependent(struct AV1_COMP *cpi);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AV1_ENCODER_SPEED_FEATURES_H_