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Diffstat (limited to 'third_party/aom/av1/encoder/speed_features.h')
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diff --git a/third_party/aom/av1/encoder/speed_features.h b/third_party/aom/av1/encoder/speed_features.h new file mode 100644 index 000000000..af54a1a9a --- /dev/null +++ b/third_party/aom/av1/encoder/speed_features.h @@ -0,0 +1,484 @@ +/* + * 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 << D117_PRED) | (1 << D153_PRED) | + (1 << D207_PRED) | (1 << D63_PRED) | +#if CONFIG_ALT_INTRA + (1 << SMOOTH_PRED) | +#endif // CONFIG_ALT_INTRA + (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) +}; + +#if CONFIG_EXT_INTER +enum { + INTER_ALL = (1 << NEARESTMV) | (1 << NEARMV) | (1 << ZEROMV) | (1 << NEWMV) | + (1 << NEAREST_NEARESTMV) | (1 << NEAR_NEARMV) | + (1 << NEAREST_NEARMV) | (1 << NEAR_NEARESTMV) | (1 << NEW_NEWMV) | + (1 << NEAREST_NEWMV) | (1 << NEAR_NEWMV) | (1 << NEW_NEARMV) | + (1 << NEW_NEARESTMV) | (1 << ZERO_ZEROMV), + INTER_NEAREST = (1 << NEARESTMV) | (1 << NEAREST_NEARESTMV) | + (1 << NEAREST_NEARMV) | (1 << NEAR_NEARESTMV) | + (1 << NEW_NEARESTMV) | (1 << NEAREST_NEWMV), + INTER_NEAREST_NEW = (1 << NEARESTMV) | (1 << NEWMV) | + (1 << NEAREST_NEARESTMV) | (1 << NEW_NEWMV) | + (1 << NEAR_NEARESTMV) | (1 << NEAREST_NEARMV) | + (1 << NEW_NEARESTMV) | (1 << NEAREST_NEWMV) | + (1 << NEW_NEARMV) | (1 << NEAR_NEWMV), + INTER_NEAREST_ZERO = (1 << NEARESTMV) | (1 << ZEROMV) | + (1 << NEAREST_NEARESTMV) | (1 << ZERO_ZEROMV) | + (1 << NEAREST_NEARMV) | (1 << NEAR_NEARESTMV) | + (1 << NEAREST_NEWMV) | (1 << NEW_NEARESTMV), + INTER_NEAREST_NEW_ZERO = + (1 << NEARESTMV) | (1 << ZEROMV) | (1 << NEWMV) | + (1 << NEAREST_NEARESTMV) | (1 << ZERO_ZEROMV) | (1 << NEW_NEWMV) | + (1 << NEAREST_NEARMV) | (1 << NEAR_NEARESTMV) | (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 << NEAREST_NEARMV) | + (1 << NEAR_NEARESTMV) | (1 << NEW_NEARESTMV) | (1 << NEAREST_NEWMV) | + (1 << NEW_NEARMV) | (1 << NEAR_NEWMV) | (1 << NEAR_NEARMV), + INTER_NEAREST_NEAR_ZERO = + (1 << NEARESTMV) | (1 << NEARMV) | (1 << ZEROMV) | + (1 << NEAREST_NEARESTMV) | (1 << ZERO_ZEROMV) | (1 << NEAREST_NEARMV) | + (1 << NEAR_NEARESTMV) | (1 << NEAREST_NEWMV) | (1 << NEW_NEARESTMV) | + (1 << NEW_NEARMV) | (1 << NEAR_NEWMV) | (1 << NEAR_NEARMV), +}; +#else +enum { + INTER_ALL = (1 << NEARESTMV) | (1 << NEARMV) | (1 << ZEROMV) | (1 << NEWMV), + INTER_NEAREST = (1 << NEARESTMV), + INTER_NEAREST_NEW = (1 << NEARESTMV) | (1 << NEWMV), + INTER_NEAREST_ZERO = (1 << NEARESTMV) | (1 << ZEROMV), + INTER_NEAREST_NEW_ZERO = (1 << NEARESTMV) | (1 << ZEROMV) | (1 << NEWMV), + INTER_NEAREST_NEAR_NEW = (1 << NEARESTMV) | (1 << NEARMV) | (1 << NEWMV), + INTER_NEAREST_NEAR_ZERO = (1 << NEARESTMV) | (1 << NEARMV) | (1 << ZEROMV), +}; +#endif // CONFIG_EXT_INTER + +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 { + 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_LARGESTALL, + USE_TX_8X8 +} 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, +#if CONFIG_EXT_TX + // eliminates two tx types in each direction + PRUNE_TWO = 2, +#endif +} TX_TYPE_PRUNE_MODE; + +typedef struct { + TX_TYPE_PRUNE_MODE prune_mode; + int fast_intra_tx_type_search; + int fast_inter_tx_type_search; +} TX_TYPE_SEARCH; + +typedef enum { + // Search partitions using RD criterion + SEARCH_PARTITION, + + // Always use a fixed size partition + FIXED_PARTITION, + + REFERENCE_PARTITION, + + // Use an arbitrary partitioning scheme based on source variance within + // a 64X64 SB + VAR_BASED_PARTITION, + + // Use non-fixed partitions based on source variance + SOURCE_VAR_BASED_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 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 (+1, 0). + int optimize_coefficients; + + // 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; + + // 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; + + // 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; + + // Used if partition_search_type = FIXED_SIZE_PARTITION + BLOCK_SIZE always_this_block_size; + + // 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; + +#if CONFIG_EXT_INTER + // 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; +#endif // CONFIG_EXT_INTER + + // 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]; + + // These bit masks allow you to enable or disable intra modes for each + // prediction block size separately. + int intra_y_mode_bsize_mask[BLOCK_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, ZEROMV, NEWMV + // modes are used in order from LSB to MSB for each BLOCK_SIZE. + int inter_mode_mask[BLOCK_SIZES]; + + // 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 SOURCE_VAR_BASED_PARTITION or + // 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; + + // Early termination in transform size search, which only applies while + // tx_size_search_method is USE_FULL_RD. + int tx_size_search_breakout; + + // 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; + + // Do sub-pixel search in up-sampled reference frames + int use_upsampled_references; + + // Whether to compute distortion in the image domain (slower but + // more accurate), or in the transform domain (faster but less acurate). + int use_transform_domain_distortion; +} 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_ |