AOMedia AV1 Codec
speed_features.h
Go to the documentation of this file.
1/*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12#ifndef AOM_AV1_ENCODER_SPEED_FEATURES_H_
13#define AOM_AV1_ENCODER_SPEED_FEATURES_H_
14
15#include "av1/common/enums.h"
16#include "av1/encoder/enc_enums.h"
17#include "av1/encoder/mcomp.h"
18#include "av1/encoder/encodemb.h"
19
20#ifdef __cplusplus
21extern "C" {
22#endif
23
27#define MAX_MESH_STEP 4
28
29typedef struct MESH_PATTERN {
30 int range;
31 int interval;
32} MESH_PATTERN;
33
34enum {
35 GM_FULL_SEARCH,
36 GM_REDUCED_REF_SEARCH_SKIP_L2_L3,
37 GM_REDUCED_REF_SEARCH_SKIP_L2_L3_ARF2,
38 GM_DISABLE_SEARCH
39} UENUM1BYTE(GM_SEARCH_TYPE);
40
41enum {
42 DIST_WTD_COMP_ENABLED,
43 DIST_WTD_COMP_SKIP_MV_SEARCH,
44 DIST_WTD_COMP_DISABLED,
45} UENUM1BYTE(DIST_WTD_COMP_FLAG);
46
47enum {
48 INTRA_ALL = (1 << DC_PRED) | (1 << V_PRED) | (1 << H_PRED) | (1 << D45_PRED) |
49 (1 << D135_PRED) | (1 << D113_PRED) | (1 << D157_PRED) |
50 (1 << D203_PRED) | (1 << D67_PRED) | (1 << SMOOTH_PRED) |
51 (1 << SMOOTH_V_PRED) | (1 << SMOOTH_H_PRED) | (1 << PAETH_PRED),
52 UV_INTRA_ALL =
53 (1 << UV_DC_PRED) | (1 << UV_V_PRED) | (1 << UV_H_PRED) |
54 (1 << UV_D45_PRED) | (1 << UV_D135_PRED) | (1 << UV_D113_PRED) |
55 (1 << UV_D157_PRED) | (1 << UV_D203_PRED) | (1 << UV_D67_PRED) |
56 (1 << UV_SMOOTH_PRED) | (1 << UV_SMOOTH_V_PRED) |
57 (1 << UV_SMOOTH_H_PRED) | (1 << UV_PAETH_PRED) | (1 << UV_CFL_PRED),
58 UV_INTRA_DC = (1 << UV_DC_PRED),
59 UV_INTRA_DC_CFL = (1 << UV_DC_PRED) | (1 << UV_CFL_PRED),
60 UV_INTRA_DC_TM = (1 << UV_DC_PRED) | (1 << UV_PAETH_PRED),
61 UV_INTRA_DC_PAETH_CFL =
62 (1 << UV_DC_PRED) | (1 << UV_PAETH_PRED) | (1 << UV_CFL_PRED),
63 UV_INTRA_DC_H_V = (1 << UV_DC_PRED) | (1 << UV_V_PRED) | (1 << UV_H_PRED),
64 UV_INTRA_DC_H_V_CFL = (1 << UV_DC_PRED) | (1 << UV_V_PRED) |
65 (1 << UV_H_PRED) | (1 << UV_CFL_PRED),
66 UV_INTRA_DC_PAETH_H_V = (1 << UV_DC_PRED) | (1 << UV_PAETH_PRED) |
67 (1 << UV_V_PRED) | (1 << UV_H_PRED),
68 UV_INTRA_DC_PAETH_H_V_CFL = (1 << UV_DC_PRED) | (1 << UV_PAETH_PRED) |
69 (1 << UV_V_PRED) | (1 << UV_H_PRED) |
70 (1 << UV_CFL_PRED),
71 INTRA_DC = (1 << DC_PRED),
72 INTRA_DC_TM = (1 << DC_PRED) | (1 << PAETH_PRED),
73 INTRA_DC_H_V = (1 << DC_PRED) | (1 << V_PRED) | (1 << H_PRED),
74 INTRA_DC_H_V_SMOOTH =
75 (1 << DC_PRED) | (1 << V_PRED) | (1 << H_PRED) | (1 << SMOOTH_PRED),
76 INTRA_DC_PAETH_H_V =
77 (1 << DC_PRED) | (1 << PAETH_PRED) | (1 << V_PRED) | (1 << H_PRED)
78};
79
80enum {
81 INTER_ALL = (1 << NEARESTMV) | (1 << NEARMV) | (1 << GLOBALMV) |
82 (1 << NEWMV) | (1 << NEAREST_NEARESTMV) | (1 << NEAR_NEARMV) |
83 (1 << NEW_NEWMV) | (1 << NEAREST_NEWMV) | (1 << NEAR_NEWMV) |
84 (1 << NEW_NEARMV) | (1 << NEW_NEARESTMV) | (1 << GLOBAL_GLOBALMV),
85 INTER_NEAREST_NEAR_ZERO = (1 << NEARESTMV) | (1 << NEARMV) | (1 << GLOBALMV) |
86 (1 << NEAREST_NEARESTMV) | (1 << GLOBAL_GLOBALMV) |
87 (1 << NEAREST_NEWMV) | (1 << NEW_NEARESTMV) |
88 (1 << NEW_NEARMV) | (1 << NEAR_NEWMV) |
89 (1 << NEAR_NEARMV),
90};
91
92enum {
93 DISABLE_ALL_INTER_SPLIT = (1 << THR_COMP_GA) | (1 << THR_COMP_LA) |
94 (1 << THR_ALTR) | (1 << THR_GOLD) | (1 << THR_LAST),
95
96 DISABLE_ALL_SPLIT = (1 << THR_INTRA) | DISABLE_ALL_INTER_SPLIT,
97
98 DISABLE_COMPOUND_SPLIT = (1 << THR_COMP_GA) | (1 << THR_COMP_LA),
99
100 LAST_AND_INTRA_SPLIT_ONLY = (1 << THR_COMP_GA) | (1 << THR_COMP_LA) |
101 (1 << THR_ALTR) | (1 << THR_GOLD)
102};
103
104enum {
105 TXFM_CODING_SF = 1,
106 INTER_PRED_SF = 2,
107 INTRA_PRED_SF = 4,
108 PARTITION_SF = 8,
109 LOOP_FILTER_SF = 16,
110 RD_SKIP_SF = 32,
111 RESERVE_2_SF = 64,
112 RESERVE_3_SF = 128,
113} UENUM1BYTE(DEV_SPEED_FEATURES);
114
115/* This enumeration defines when the rate control recode loop will be
116 * enabled.
117 */
118enum {
119 /*
120 * No recodes allowed
121 */
122 DISALLOW_RECODE = 0,
123 /*
124 * Allow recode only for KF/ARF/GF frames
125 */
126 ALLOW_RECODE_KFARFGF = 1,
127 /*
128 * Allow recode for all frame types based on bitrate constraints.
129 */
130 ALLOW_RECODE = 2,
131} UENUM1BYTE(RECODE_LOOP_TYPE);
132
133enum {
134 SUBPEL_TREE = 0,
135 SUBPEL_TREE_PRUNED = 1, // Prunes 1/2-pel searches
136 SUBPEL_TREE_PRUNED_MORE = 2, // Prunes 1/2-pel searches more aggressively
137} UENUM1BYTE(SUBPEL_SEARCH_METHODS);
138
139enum {
140 // Try the full image with different values.
141 LPF_PICK_FROM_FULL_IMAGE,
142 // Try the full image filter search with non-dual filter only.
143 LPF_PICK_FROM_FULL_IMAGE_NON_DUAL,
144 // Try a small portion of the image with different values.
145 LPF_PICK_FROM_SUBIMAGE,
146 // Estimate the level based on quantizer and frame type
147 LPF_PICK_FROM_Q,
148 // Pick 0 to disable LPF if LPF was enabled last frame
149 LPF_PICK_MINIMAL_LPF
150} UENUM1BYTE(LPF_PICK_METHOD);
156typedef enum {
164 CDEF_PICK_METHODS
166
168enum {
169 // Terminate search early based on distortion so far compared to
170 // qp step, distortion in the neighborhood of the frame, etc.
171 FLAG_EARLY_TERMINATE = 1 << 0,
172
173 // Skips comp inter modes if the best so far is an intra mode.
174 FLAG_SKIP_COMP_BESTINTRA = 1 << 1,
175
176 // Skips oblique intra modes if the best so far is an inter mode.
177 FLAG_SKIP_INTRA_BESTINTER = 1 << 3,
178
179 // Skips oblique intra modes at angles 27, 63, 117, 153 if the best
180 // intra so far is not one of the neighboring directions.
181 FLAG_SKIP_INTRA_DIRMISMATCH = 1 << 4,
182
183 // Skips intra modes other than DC_PRED if the source variance is small
184 FLAG_SKIP_INTRA_LOWVAR = 1 << 5,
185} UENUM1BYTE(MODE_SEARCH_SKIP_LOGIC);
186
187enum {
188 // No tx type pruning
189 TX_TYPE_PRUNE_0 = 0,
190 // adaptively prunes the least perspective tx types out of all 16
191 // (tuned to provide negligible quality loss)
192 TX_TYPE_PRUNE_1 = 1,
193 // similar, but applies much more aggressive pruning to get better speed-up
194 TX_TYPE_PRUNE_2 = 2,
195 TX_TYPE_PRUNE_3 = 3,
196 // More aggressive pruning based on tx type score and allowed tx count
197 TX_TYPE_PRUNE_4 = 4,
198 TX_TYPE_PRUNE_5 = 5,
199} UENUM1BYTE(TX_TYPE_PRUNE_MODE);
200
201enum {
202 // No reaction to rate control on a detected slide/scene change.
203 NO_DETECTION = 0,
204
205 // Set to larger Q based only on the detected slide/scene change and
206 // current/past Q.
207 FAST_DETECTION_MAXQ = 1,
208} UENUM1BYTE(OVERSHOOT_DETECTION_CBR);
209
210enum {
211 // Turns off multi-winner mode. So we will do txfm search on either all modes
212 // if winner mode is off, or we will only on txfm search on a single winner
213 // mode.
214 MULTI_WINNER_MODE_OFF = 0,
215
216 // Limits the number of winner modes to at most 2
217 MULTI_WINNER_MODE_FAST = 1,
218
219 // Uses the default number of winner modes, which is 3 for intra mode, and 1
220 // for inter mode.
221 MULTI_WINNER_MODE_DEFAULT = 2,
222} UENUM1BYTE(MULTI_WINNER_MODE_TYPE);
223
224enum {
225 PRUNE_NEARMV_OFF = 0, // Turn off nearmv pruning
226 PRUNE_NEARMV_LEVEL1 = 1, // Prune nearmv for qindex (0-85)
227 PRUNE_NEARMV_LEVEL2 = 2, // Prune nearmv for qindex (0-170)
228 PRUNE_NEARMV_LEVEL3 = 3, // Prune nearmv more aggressively for qindex (0-170)
229 PRUNE_NEARMV_MAX = PRUNE_NEARMV_LEVEL3,
230} UENUM1BYTE(PRUNE_NEARMV_LEVEL);
231
232typedef struct {
233 TX_TYPE_PRUNE_MODE prune_2d_txfm_mode;
234 int fast_intra_tx_type_search;
235
236 // INT_MAX: Disable fast search.
237 // 1 - 1024: Probability threshold used for conditionally forcing tx type,
238 // during mode search.
239 // 0: Force tx type to be DCT_DCT unconditionally, during
240 // mode search.
241 int fast_inter_tx_type_prob_thresh;
242
243 // Prune less likely chosen transforms for each intra mode. The speed
244 // feature ranges from 0 to 2, for different speed / compression trade offs.
245 int use_reduced_intra_txset;
246
247 // Use a skip flag prediction model to detect blocks with skip = 1 early
248 // and avoid doing full TX type search for such blocks.
249 int use_skip_flag_prediction;
250
251 // Threshold used by the ML based method to predict TX block split decisions.
252 int ml_tx_split_thresh;
253
254 // skip remaining transform type search when we found the rdcost of skip is
255 // better than applying transform
256 int skip_tx_search;
257
258 // Prune tx type search using previous frame stats.
259 int prune_tx_type_using_stats;
260 // Prune tx type search using estimated RDcost
261 int prune_tx_type_est_rd;
262
263 // Flag used to control the winner mode processing for tx type pruning for
264 // inter blocks. It enables further tx type mode pruning based on ML model for
265 // mode evaluation and disables tx type mode pruning for winner mode
266 // processing.
267 int winner_mode_tx_type_pruning;
268} TX_TYPE_SEARCH;
269
270enum {
271 // Search partitions using RD criterion
272 SEARCH_PARTITION,
273
274 // Always use a fixed size partition
275 FIXED_PARTITION,
276
277 // Partition using source variance
278 VAR_BASED_PARTITION,
279
280#if CONFIG_RT_ML_PARTITIONING
281 // Partition using ML model
282 ML_BASED_PARTITION
283#endif
284} UENUM1BYTE(PARTITION_SEARCH_TYPE);
285
286enum {
287 NOT_IN_USE,
288 DIRECT_PRED,
289 RELAXED_PRED,
290 ADAPT_PRED
291} UENUM1BYTE(MAX_PART_PRED_MODE);
292
293enum {
294 LAST_MV_DATA,
295 CURRENT_Q,
296 QTR_ONLY,
297} UENUM1BYTE(MV_PREC_LOGIC);
298
299enum {
300 SUPERRES_AUTO_ALL, // Tries all possible superres ratios
301 SUPERRES_AUTO_DUAL, // Tries no superres and q-based superres ratios
302 SUPERRES_AUTO_SOLO, // Only apply the q-based superres ratio
303} UENUM1BYTE(SUPERRES_AUTO_SEARCH_TYPE);
314typedef enum {
320
327
331 RECODE_LOOP_TYPE recode_loop;
332
338
346
355
359 SUPERRES_AUTO_SEARCH_TYPE superres_auto_search_type;
360
365
371
383
388
393
399
401typedef struct TPL_SPEED_FEATURES {
402 // GOP length adaptive decision.
403 // If set to 0, tpl model decides whether a shorter gf interval is better.
404 // If set to 1, tpl stats of ARFs from base layer, (base+1) layer and
405 // (base+2) layer decide whether a shorter gf interval is better.
406 // If set to 2, tpl stats of ARFs from base layer, (base+1) layer and GF boost
407 // decide whether a shorter gf interval is better.
408 // If set to 3, gop length adaptive decision is disabled.
409 int gop_length_decision_method;
410 // Prune the intra modes search by tpl.
411 // If set to 0, we will search all intra modes from DC_PRED to PAETH_PRED.
412 // If set to 1, we only search DC_PRED, V_PRED, and H_PRED.
413 int prune_intra_modes;
414 // This parameter controls which step in the n-step process we start at.
415 int reduce_first_step_size;
416 // Skip motion estimation based on the precision of center MVs and the
417 // difference between center MVs.
418 // If set to 0, motion estimation is skipped for duplicate center MVs
419 // (default). If set to 1, motion estimation is skipped for duplicate
420 // full-pixel center MVs. If set to 2, motion estimation is skipped if the
421 // difference between center MVs is less than the threshold.
422 int skip_alike_starting_mv;
423
424 // When to stop subpel search.
425 SUBPEL_FORCE_STOP subpel_force_stop;
426
427 // Which search method to use.
428 SEARCH_METHODS search_method;
429
430 // Prune starting mvs in TPL based on sad scores.
431 int prune_starting_mv;
432
433 // Not run TPL for filtered Key frame.
434 int disable_filtered_key_tpl;
435
436 // Prune reference frames in TPL.
437 int prune_ref_frames_in_tpl;
438
439 // Support compound predictions.
440 int allow_compound_pred;
441
442 // Calculate rate and distortion based on Y plane only.
443 int use_y_only_rate_distortion;
444} TPL_SPEED_FEATURES;
445
446typedef struct GLOBAL_MOTION_SPEED_FEATURES {
447 GM_SEARCH_TYPE gm_search_type;
448
449 // During global motion estimation, prune remaining reference frames in a
450 // given direction(past/future), if the evaluated ref_frame in that direction
451 // yields gm_type as INVALID/TRANSLATION/IDENTITY
452 int prune_ref_frame_for_gm_search;
453
454 // When the current GM type is set to ZEROMV, prune ZEROMV if its performance
455 // is worse than NEWMV under SSE metric.
457} GLOBAL_MOTION_SPEED_FEATURES;
458
459typedef struct PARTITION_SPEED_FEATURES {
460 PARTITION_SEARCH_TYPE partition_search_type;
461
462 // Used if partition_search_type = FIXED_PARTITION
463 BLOCK_SIZE fixed_partition_size;
464
465 // Prune extended partition types search
466 // Can take values 0 - 2, 0 referring to no pruning, and 1 - 2 increasing
467 // aggressiveness of pruning in order.
468 int prune_ext_partition_types_search_level;
469
470 // Prune part4 based on block size
471 int prune_part4_search;
472
473 // Use a ML model to prune rectangular, ab and 4-way horz
474 // and vert partitions
475 int ml_prune_partition;
476
477 // Use a ML model to adaptively terminate partition search after trying
478 // PARTITION_SPLIT. Can take values 0 - 2, 0 meaning not being enabled, and
479 // 1 - 2 increasing aggressiveness in order.
480 int ml_early_term_after_part_split_level;
481
482 // Skip rectangular partition test when partition type none gives better
483 // rd than partition type split. Can take values 0 - 2, 0 referring to no
484 // skipping, and 1 - 2 increasing aggressiveness of skipping in order.
485 int less_rectangular_check_level;
486
487 // Use square partition only beyond this block size.
488 BLOCK_SIZE use_square_partition_only_threshold;
489
490 // Sets max square partition levels for this superblock based on
491 // motion vector and prediction error distribution produced from 16x16
492 // simple motion search
493 MAX_PART_PRED_MODE auto_max_partition_based_on_simple_motion;
494
495 // Min and max square partition size we enable (block_size) as per auto
496 // min max, but also used by adjust partitioning, and pick_partitioning.
497 BLOCK_SIZE default_min_partition_size;
498 BLOCK_SIZE default_max_partition_size;
499
500 // Sets level of adjustment of variance-based partitioning during
501 // rd_use_partition 0 - no partition adjustment, 1 - try to merge partitions
502 // for small blocks and high QP, 2 - try to merge partitions, 3 - always try
503 // to merge leaf partitions for small blocks, 4 - try to merge and split leaf
504 // partitions and 0 - 4 decreasing aggressiveness in order.
505 int adjust_var_based_rd_partitioning;
506
507 // Partition search early breakout thresholds.
508 int64_t partition_search_breakout_dist_thr;
509 int partition_search_breakout_rate_thr;
510
511 // Thresholds for ML based partition search breakout.
512 int ml_partition_search_breakout_thresh[PARTITION_BLOCK_SIZES];
513
514 // The aggressiveness of pruning with simple_motion_search.
515 // Currently 0 is the lowest, and 2 the highest.
516 int simple_motion_search_prune_agg;
517
518 // Perform simple_motion_search on each possible subblock and use it to prune
519 // PARTITION_HORZ and PARTITION_VERT.
520 int simple_motion_search_prune_rect;
521
522 // Perform simple motion search before none_partition to decide if we
523 // want to remove all partitions other than PARTITION_SPLIT. If set to 0, this
524 // model is disabled. If set to 1, the model attempts to perform
525 // PARTITION_SPLIT only. If set to 2, the model also attempts to prune
526 // PARTITION_SPLIT.
527 int simple_motion_search_split;
528
529 // Use features from simple_motion_search to terminate prediction block
530 // partition after PARTITION_NONE
531 int simple_motion_search_early_term_none;
532
533 // Controls whether to reduce the number of motion search steps. If this is 0,
534 // then simple_motion_search has the same number of steps as
535 // single_motion_search (assuming no other speed features). Otherwise, reduce
536 // the number of steps by the value contained in this variable.
537 int simple_motion_search_reduce_search_steps;
538
539 // This variable controls the maximum block size where intra blocks can be
540 // used in inter frames.
541 // TODO(aconverse): Fold this into one of the other many mode skips
542 BLOCK_SIZE max_intra_bsize;
543
544 // Use CNN with luma pixels on source frame on each of the 64x64 subblock to
545 // perform partition pruning in intra frames.
546 // 0: No Pruning
547 // 1: Prune split and rectangular partitions only
548 // 2: Prune none, split and rectangular partitions
549 int intra_cnn_based_part_prune_level;
550
551 // Disable extended partition search for lower block sizes.
552 int ext_partition_eval_thresh;
553
554 // Disable rectangular partitions for larger block sizes.
555 int rect_partition_eval_thresh;
556
557 // prune extended partition search
558 // 0 : no pruning
559 // 1 : prune 1:4 partition search using winner info from split partitions
560 // 2 : prune 1:4 and AB partition search using split and HORZ/VERT info
561 int prune_ext_part_using_split_info;
562
563 // Prunt rectangular, AB and 4-way partition based on q index and block size
564 // 0 : no pruning
565 // 1 : prune sub_8x8 at very low quantizers
566 // 2 : prune all block size based on qindex
567 int prune_rectangular_split_based_on_qidx;
568
569 // Terminate partition search for child partition,
570 // when NONE and SPLIT partition rd_costs are INT64_MAX.
571 int early_term_after_none_split;
572
573 // Level used to adjust threshold for av1_ml_predict_breakout(). At lower
574 // levels, more conservative threshold is used, and value of 0 indicates
575 // av1_ml_predict_breakout() is disabled. Value of 3 corresponds to default
576 // case with no adjustment to lbd thresholds.
577 int ml_predict_breakout_level;
578
579 // Prune sub_8x8 (BLOCK_4X4, BLOCK_4X8 and BLOCK_8X4) partitions.
580 // 0 : no pruning
581 // 1 : pruning based on neighbour block information
582 // 2 : prune always
583 int prune_sub_8x8_partition_level;
584
585 // Prune rectangular split based on simple motion search split/no_split score.
586 // 0: disable pruning, 1: enable pruning
587 int simple_motion_search_rect_split;
588
589 // The current encoder adopts a DFS search for block partitions.
590 // Therefore the mode selection and associated rdcost is ready for smaller
591 // blocks before the mode selection for some partition types.
592 // AB partition could use previous rd information and skip mode search.
593 // An example is:
594 //
595 // current block
596 // +---+---+
597 // | |
598 // + +
599 // | |
600 // +-------+
601 //
602 // SPLIT partition has been searched first before trying HORZ_A
603 // +---+---+
604 // | R | R |
605 // +---+---+
606 // | R | R |
607 // +---+---+
608 //
609 // HORZ_A
610 // +---+---+
611 // | | |
612 // +---+---+
613 // | |
614 // +-------+
615 //
616 // With this speed feature, the top two sub blocks can directly use rdcost
617 // searched in split partition, and the mode info is also copied from
618 // saved info. Similarly, the bottom rectangular block can also use
619 // the available information from previous rectangular search.
620 int reuse_prev_rd_results_for_part_ab;
621
622 // Reuse the best prediction modes found in PARTITION_SPLIT and PARTITION_RECT
623 // when encoding PARTITION_AB.
624 int reuse_best_prediction_for_part_ab;
625
626 // The current partition search records the best rdcost so far and uses it
627 // in mode search and transform search to early skip when some criteria is
628 // met. For example, when the current rdcost is larger than the best rdcost,
629 // or the model rdcost is larger than the best rdcost times some thresholds.
630 // By default, this feature is turned on to speed up the encoder partition
631 // search.
632 // If disabling it, at speed 0, 30 frames, we could get
633 // about -0.25% quality gain (psnr, ssim, vmaf), with about 13% slowdown.
634 int use_best_rd_for_pruning;
635
636 // Skip evaluation of non-square partitions based on the corresponding NONE
637 // partition.
638 // 0: no pruning
639 // 1: prune extended partitions if NONE is skippable
640 // 2: on top of 1, prune rectangular partitions if NONE is inter, not a newmv
641 // mode and skippable
642 int skip_non_sq_part_based_on_none;
643} PARTITION_SPEED_FEATURES;
644
645typedef struct MV_SPEED_FEATURES {
646 // Motion search method (Diamond, NSTEP, Hex, Big Diamond, Square, etc).
647 SEARCH_METHODS search_method;
648
649 // Enable the use of faster, less accurate mv search method on bsize >=
650 // BLOCK_32X32.
651 // TODO(chiyotsai@google.com): Take the clip's resolution and mv activity into
652 // account.
653 int use_bsize_dependent_search_method;
654
655 // If this is set to 1, we limit the motion search range to 2 times the
656 // largest motion vector found in the last frame.
657 int auto_mv_step_size;
658
659 // Subpel_search_method can only be subpel_tree which does a subpixel
660 // logarithmic search that keeps stepping at 1/2 pixel units until
661 // you stop getting a gain, and then goes on to 1/4 and repeats
662 // the same process. Along the way it skips many diagonals.
663 SUBPEL_SEARCH_METHODS subpel_search_method;
664
665 // Maximum number of steps in logarithmic subpel search before giving up.
666 int subpel_iters_per_step;
667
668 // When to stop subpel search.
669 SUBPEL_FORCE_STOP subpel_force_stop;
670
671 // When to stop subpel search in simple motion search.
672 SUBPEL_FORCE_STOP simple_motion_subpel_force_stop;
673
674 // If true, sub-pixel search uses the exact convolve function used for final
675 // encoding and decoding; otherwise, it uses bilinear interpolation.
676 SUBPEL_SEARCH_TYPE use_accurate_subpel_search;
677
678 // Threshold for allowing exhaustive motion search.
679 int exhaustive_searches_thresh;
680
681 // Pattern to be used for any exhaustive mesh searches (except intraBC ME).
682 MESH_PATTERN mesh_patterns[MAX_MESH_STEP];
683
684 // Pattern to be used for exhaustive mesh searches of intraBC ME.
685 MESH_PATTERN intrabc_mesh_patterns[MAX_MESH_STEP];
686
687 // Reduce single motion search range based on MV result of prior ref_mv_idx.
688 int reduce_search_range;
689
690 // Prune mesh search.
691 int prune_mesh_search;
692
693 // Use the rd cost around the best FULLPEL_MV to speed up subpel search
694 int use_fullpel_costlist;
695
696 // Set the full pixel search level of obmc
697 // 0: obmc_full_pixel_diamond
698 // 1: obmc_refining_search_sad (faster)
699 int obmc_full_pixel_search_level;
700
701 // Accurate full pixel motion search based on TPL stats.
702 int full_pixel_search_level;
703
704 // Whether to downsample the rows in sad calculation during motion search.
705 // This is only active when there are at least 16 rows.
706 int use_downsampled_sad;
707
708 // Enable/disable extensive joint motion search.
709 int disable_extensive_joint_motion_search;
710
711 // Enable second best mv check in joint mv search.
712 // 0: allow second MV (use rd cost as the metric)
713 // 1: use var as the metric
714 // 2: disable second MV
715 int disable_second_mv;
716} MV_SPEED_FEATURES;
717
718typedef struct INTER_MODE_SPEED_FEATURES {
719 // 2-pass inter mode model estimation where the preliminary pass skips
720 // transform search and uses a model to estimate rd, while the final pass
721 // computes the full transform search. Two types of models are supported:
722 // 0: not used
723 // 1: used with online dynamic rd model
724 // 2: used with static rd model
725 int inter_mode_rd_model_estimation;
726
727 // Bypass transform search based on skip rd
728 int txfm_rd_gate_level;
729
730 // Limit the inter mode tested in the RD loop
731 int reduce_inter_modes;
732
733 // This variable is used to cap the maximum number of times we skip testing a
734 // mode to be evaluated. A high value means we will be faster.
735 int adaptive_rd_thresh;
736
737 // Aggressively prune inter modes when best mode is skippable.
738 int prune_inter_modes_if_skippable;
739
740 // Drop less likely to be picked reference frames in the RD search.
741 // Has seven levels for now: 0, 1, 2, 3, 4, 5 and 6 where higher levels prune
742 // more aggressively than lower ones. (0 means no pruning).
743 int selective_ref_frame;
744
745 // Prune reference frames for rectangular partitions.
746 // 0 implies no pruning
747 // 1 implies prune for extended partition
748 // 2 implies prune horiz, vert and extended partition
749 int prune_ref_frame_for_rect_partitions;
750
751 int alt_ref_search_fp;
752
753 // Skip the current ref_mv in NEW_MV mode based on mv, rate cost, etc.
754 // This speed feature equaling 0 means no skipping.
755 // If the speed feature equals 1 or 2, skip the current ref_mv in NEW_MV mode
756 // if we have already encountered ref_mv in the drl such that:
757 // 1. The other drl has the same mv during the SIMPLE_TRANSLATION search
758 // process as the current mv.
759 // 2. The rate needed to encode the current mv is larger than that for the
760 // other ref_mv.
761 // The speed feature equaling 1 means using subpel mv in the comparison.
762 // The speed feature equaling 2 means using fullpel mv in the comparison.
763 // If the speed feature >= 3, skip the current ref_mv in NEW_MV mode based on
764 // known full_mv bestsme and drl cost.
765 int skip_newmv_in_drl;
766
767 // This speed feature checks duplicate ref MVs among NEARESTMV, NEARMV,
768 // GLOBALMV and skips NEARMV or GLOBALMV (in order) if a duplicate is found
769 // TODO(any): Instead of skipping repeated ref mv, use the recalculated
770 // rd-cost based on mode rate and skip the mode evaluation
771 int skip_repeated_ref_mv;
772
773 // Flag used to control the ref_best_rd based gating for chroma
774 int perform_best_rd_based_gating_for_chroma;
775
776 // Reuse the inter_intra_mode search result from NEARESTMV mode to other
777 // single ref modes
778 int reuse_inter_intra_mode;
779
780 // prune wedge and compound segment approximate rd evaluation based on
781 // compound average modeled rd
782 int prune_comp_type_by_model_rd;
783
784 // prune wedge and compound segment approximate rd evaluation based on
785 // compound average rd/ref_best_rd
786 int prune_comp_type_by_comp_avg;
787
788 // Skip some ref frames in compound motion search by single motion search
789 // result. Has three levels for now: 0 referring to no skipping, and 1 - 3
790 // increasing aggressiveness of skipping in order.
791 // Note: The search order might affect the result. It assumes that the single
792 // reference modes are searched before compound modes. It is better to search
793 // same single inter mode as a group.
794 int prune_comp_search_by_single_result;
795
796 // If 1 we iterate finding a best reference for 2 ref frames together - via
797 // a log search that iterates 4 times (check around mv for last for best
798 // error of combined predictor then check around mv for alt). If 0 we
799 // we just use the best motion vector found for each frame by itself.
800 BLOCK_SIZE comp_inter_joint_search_thresh;
801
802 // Instead of performing a full MV search, do a simple translation first
803 // and only perform a full MV search on the motion vectors that performed
804 // well.
805 int prune_mode_search_simple_translation;
806
807 // Only search compound modes with at least one "good" reference frame.
808 // A reference frame is good if, after looking at its performance among
809 // the single reference modes, it is one of the two best performers.
810 int prune_compound_using_single_ref;
811
812 // Skip extended compound mode (NEAREST_NEWMV, NEW_NEARESTMV, NEAR_NEWMV,
813 // NEW_NEARMV) using ref frames of above and left neighbor
814 // blocks.
815 // 0 : no pruning
816 // 1 : prune ext compound modes using neighbor blocks (less aggressiveness)
817 // 2 : prune ext compound modes using neighbor blocks (high aggressiveness)
818 // 3 : prune ext compound modes unconditionally (highest aggressiveness)
819 int prune_ext_comp_using_neighbors;
820
821 // Skip NEW_NEARMV and NEAR_NEWMV extended compound modes
822 int skip_ext_comp_nearmv_mode;
823
824 // Skip extended compound mode when ref frame corresponding to NEWMV does not
825 // have NEWMV as single mode winner.
826 // 0 : no pruning
827 // 1 : prune extended compound mode (less aggressiveness)
828 // 2 : prune extended compound mode (high aggressiveness)
829 int prune_comp_using_best_single_mode_ref;
830
831 // Skip NEARESTMV and NEARMV using weight computed in ref mv list population
832 int prune_nearest_near_mv_using_refmv_weight;
833
834 // Based on previous ref_mv_idx search result, prune the following search.
835 int prune_ref_mv_idx_search;
836
837 // Disable one sided compound modes.
838 int disable_onesided_comp;
839
840 // Prune obmc search using previous frame stats.
841 // INT_MAX : disable obmc search
842 int prune_obmc_prob_thresh;
843
844 // Prune warped motion search using previous frame stats.
845 int prune_warped_prob_thresh;
846
847 // Variance threshold to enable/disable Interintra wedge search
848 unsigned int disable_interintra_wedge_var_thresh;
849
850 // Variance threshold to enable/disable Interinter wedge search
851 unsigned int disable_interinter_wedge_var_thresh;
852
853 // De-couple wedge and mode search during interintra RDO.
854 int fast_interintra_wedge_search;
855
856 // Whether fast wedge sign estimate is used
857 int fast_wedge_sign_estimate;
858
859 // Enable/disable ME for interinter wedge search.
860 int disable_interinter_wedge_newmv_search;
861
862 // Decide when and how to use joint_comp.
863 DIST_WTD_COMP_FLAG use_dist_wtd_comp_flag;
864
865 // Clip the frequency of updating the mv cost.
866 INTERNAL_COST_UPDATE_TYPE mv_cost_upd_level;
867
868 // Clip the frequency of updating the coeff cost.
869 INTERNAL_COST_UPDATE_TYPE coeff_cost_upd_level;
870
871 // Clip the frequency of updating the mode cost.
872 INTERNAL_COST_UPDATE_TYPE mode_cost_upd_level;
873
874 // Prune inter modes based on tpl stats
875 // 0 : no pruning
876 // 1 - 3 indicate increasing aggressiveness in order.
877 int prune_inter_modes_based_on_tpl;
878
879 // Skip NEARMV and NEAR_NEARMV modes using ref frames of above and left
880 // neighbor blocks and qindex.
881 PRUNE_NEARMV_LEVEL prune_nearmv_using_neighbors;
882
883 // Model based breakout after interpolation filter search
884 // 0: no breakout
885 // 1: use model based rd breakout
886 int model_based_post_interp_filter_breakout;
887
888 // Reuse compound type rd decision when exact match is found
889 // 0: No reuse
890 // 1: Reuse the compound type decision
891 int reuse_compound_type_decision;
892
893 // Enable/disable masked compound.
894 int disable_masked_comp;
895
896 // Enable/disable the fast compound mode search.
897 int enable_fast_compound_mode_search;
898
899 // Reuse masked compound type search results
900 int reuse_mask_search_results;
901
902 // Enable/disable fast search for wedge masks
903 int enable_fast_wedge_mask_search;
904
905 // Early breakout from transform search of inter modes
906 int inter_mode_txfm_breakout;
907
908 // Limit number of inter modes for txfm search if a newmv mode gets
909 // evaluated among the top modes.
910 // 0: no pruning
911 // 1 to 3 indicate increasing order of aggressiveness
912 int limit_inter_mode_cands;
913
914 // Cap the no. of txfm searches for a given prediction mode.
915 // 0: no cap, 1: cap beyond first 4 searches, 2: cap beyond first 3 searches.
916 int limit_txfm_eval_per_mode;
917} INTER_MODE_SPEED_FEATURES;
918
919typedef struct INTERP_FILTER_SPEED_FEATURES {
920 // Do limited interpolation filter search for dual filters, since best choice
921 // usually includes EIGHTTAP_REGULAR.
922 int use_fast_interpolation_filter_search;
923
924 // Disable dual filter
925 int disable_dual_filter;
926
927 // Save results of av1_interpolation_filter_search for a block
928 // Check mv and ref_frames before search, if they are very close with previous
929 // saved results, filter search can be skipped.
930 int use_interp_filter;
931
932 // skip sharp_filter evaluation based on regular and smooth filter rd for
933 // dual_filter=0 case
934 int skip_sharp_interp_filter_search;
935
936 int cb_pred_filter_search;
937
938 // adaptive interp_filter search to allow skip of certain filter types.
939 int adaptive_interp_filter_search;
940} INTERP_FILTER_SPEED_FEATURES;
941
942typedef struct INTRA_MODE_SPEED_FEATURES {
943 // These bit masks allow you to enable or disable intra modes for each
944 // transform size separately.
945 int intra_y_mode_mask[TX_SIZES];
946 int intra_uv_mode_mask[TX_SIZES];
947
948 // flag to allow skipping intra mode for inter frame prediction
949 int skip_intra_in_interframe;
950
951 // Prune intra mode candidates based on source block histogram of gradient.
952 // Applies to luma plane only.
953 // Feasible values are 0..4. The feature is disabled for 0. An increasing
954 // value indicates more aggressive pruning threshold.
955 int intra_pruning_with_hog;
956
957 // Prune intra mode candidates based on source block histogram of gradient.
958 // Applies to chroma plane only.
959 // Feasible values are 0..4. The feature is disabled for 0. An increasing
960 // value indicates more aggressive pruning threshold.
961 int chroma_intra_pruning_with_hog;
962
963 // Enable/disable smooth intra modes.
964 int disable_smooth_intra;
965
966 // Prune filter intra modes in intra frames.
967 // 0 : No pruning
968 // 1 : Evaluate applicable filter intra modes based on best intra mode so far
969 // 2 : Do not evaluate filter intra modes
970 int prune_filter_intra_level;
971
972 // prune palette search
973 // 0: No pruning
974 // 1: Perform coarse search to prune the palette colors. For winner colors,
975 // neighbors are also evaluated using a finer search.
976 // 2: Perform 2 way palette search from max colors to min colors (and min
977 // colors to remaining colors) and terminate the search if current number of
978 // palette colors is not the winner.
979 int prune_palette_search_level;
980
981 // Terminate early in luma palette_size search. Speed feature values indicate
982 // increasing level of pruning.
983 // 0: No early termination
984 // 1: Terminate early for higher luma palette_size, if header rd cost of lower
985 // palette_size is more than 2 * best_rd. This level of pruning is more
986 // conservative when compared to sf level 2 as the cases which will get pruned
987 // with sf level 1 is a subset of the cases which will get pruned with sf
988 // level 2.
989 // 2: Terminate early for higher luma palette_size, if header rd cost of lower
990 // palette_size is more than best_rd.
991 // For allintra encode, this sf reduces instruction count by 2.49%, 1.07%,
992 // 2.76%, 2.30%, 1.84%, 2.69%, 2.04%, 2.05% and 1.44% for speed 0, 1, 2, 3, 4,
993 // 5, 6, 7 and 8 on screen content set with coding performance change less
994 // than 0.01% for speed <= 2 and less than 0.03% for speed >= 3. For AVIF
995 // image encode, this sf reduces instruction count by 1.94%, 1.13%, 1.29%,
996 // 0.93%, 0.89%, 1.03%, 1.07%, 1.20% and 0.18% for speed 0, 1, 2, 3, 4, 5, 6,
997 // 7 and 8 on a typical image dataset with coding performance change less than
998 // 0.01%.
999 int prune_luma_palette_size_search_level;
1000
1001 // Prune chroma intra modes based on luma intra mode winner.
1002 // 0: No pruning
1003 // 1: Prune chroma intra modes other than UV_DC_PRED, UV_SMOOTH_PRED,
1004 // UV_CFL_PRED and the mode that corresponds to luma intra mode winner.
1005 int prune_chroma_modes_using_luma_winner;
1006
1007 // Clip the frequency of updating the mv cost for intrabc.
1008 INTERNAL_COST_UPDATE_TYPE dv_cost_upd_level;
1009
1010 // We use DCT_DCT transform followed by computing SATD (Sum of Absolute
1011 // Transformed Differences) as an estimation of RD score to quickly find the
1012 // best possible Chroma from Luma (CFL) parameter. Then we do a full RD search
1013 // near the best possible parameter. The search range is set here.
1014 // The range of cfl_searh_range should be [1, 33], and the following are the
1015 // recommended values.
1016 // 1: Fastest mode.
1017 // 3: Default mode that provides good speedup without losing compression
1018 // performance at speed 0.
1019 // 33: Exhaustive rd search (33 == CFL_MAGS_SIZE). This mode should only
1020 // be used for debugging purpose.
1021 int cfl_search_range;
1022
1023 // TOP_INTRA_MODEL_COUNT is 4 that is the number of top model rd to store in
1024 // intra mode decision. Here, add a speed feature to reduce this number for
1025 // higher speeds.
1026 int top_intra_model_count_allowed;
1027
1028 // Terminate early in chroma palette_size search.
1029 // 0: No early termination
1030 // 1: Terminate early for higher palette_size, if header rd cost of lower
1031 // palette_size is more than best_rd.
1032 // For allintra encode, this sf reduces instruction count by 0.45%,
1033 // 0.62%, 1.73%, 2.50%, 2.89%, 3.09% and 3.86% for speed 0 to 6 on screen
1034 // content set with coding performance change less than 0.01%.
1035 // For AVIF image encode, this sf reduces instruction count by 0.45%, 0.81%,
1036 // 0.85%, 1.05%, 1.45%, 1.66% and 1.95% for speed 0 to 6 on a typical image
1037 // dataset with no quality drop.
1038 int early_term_chroma_palette_size_search;
1039
1040 // Skips the evaluation of filter intra modes in inter frames if rd evaluation
1041 // of luma intra dc mode results in invalid rd stats.
1042 int skip_filter_intra_in_inter_frames;
1043} INTRA_MODE_SPEED_FEATURES;
1044
1045typedef struct TX_SPEED_FEATURES {
1046 // Init search depth for square and rectangular transform partitions.
1047 // Values:
1048 // 0 - search full tree, 1: search 1 level, 2: search the highest level only
1049 int inter_tx_size_search_init_depth_sqr;
1050 int inter_tx_size_search_init_depth_rect;
1051 int intra_tx_size_search_init_depth_sqr;
1052 int intra_tx_size_search_init_depth_rect;
1053
1054 // If any dimension of a coding block size above 64, always search the
1055 // largest transform only, since the largest transform block size is 64x64.
1056 int tx_size_search_lgr_block;
1057
1058 TX_TYPE_SEARCH tx_type_search;
1059
1060 // Skip split transform block partition when the collocated bigger block
1061 // is selected as all zero coefficients.
1062 int txb_split_cap;
1063
1064 // Shortcut the transform block partition and type search when the target
1065 // rdcost is relatively lower.
1066 // Values are 0 (not used) , or 1 - 2 with progressively increasing
1067 // aggressiveness
1068 int adaptive_txb_search_level;
1069
1070 // Prune level for tx_size_type search for inter based on rd model
1071 // 0: no pruning
1072 // 1-2: progressively increasing aggressiveness of pruning
1073 int model_based_prune_tx_search_level;
1074
1075 // Use hash table to store intra(keyframe only) txb transform search results
1076 // to avoid repeated search on the same residue signal. This is currently not
1077 // compatible with multi-winner mode as the hash states are reset during
1078 // winner mode processing.
1079 int use_intra_txb_hash;
1080
1081 // Use hash table to store inter txb transform search results
1082 // to avoid repeated search on the same residue signal.
1083 int use_inter_txb_hash;
1084
1085 // Refine TX type after fast TX search.
1086 int refine_fast_tx_search_results;
1087
1088 // Prune transform split/no_split eval based on residual properties. A value
1089 // of 0 indicates no pruning, and the aggressiveness of pruning progressively
1090 // increases from levels 1 to 3.
1091 int prune_tx_size_level;
1092} TX_SPEED_FEATURES;
1093
1094typedef struct RD_CALC_SPEED_FEATURES {
1095 // Fast approximation of av1_model_rd_from_var_lapndz
1096 int simple_model_rd_from_var;
1097
1098 // Whether to compute distortion in the image domain (slower but
1099 // more accurate), or in the transform domain (faster but less acurate).
1100 // 0: use image domain
1101 // 1: use transform domain in tx_type search, and use image domain for
1102 // RD_STATS
1103 // 2: use transform domain
1104 int tx_domain_dist_level;
1105
1106 // Transform domain distortion threshold level
1107 int tx_domain_dist_thres_level;
1108
1109 // Trellis (dynamic programming) optimization of quantized values
1110 TRELLIS_OPT_TYPE optimize_coefficients;
1111
1112 // Use hash table to store macroblock RD search results
1113 // to avoid repeated search on the same residue signal.
1114 int use_mb_rd_hash;
1115
1116 // Flag used to control the extent of coeff R-D optimization
1117 int perform_coeff_opt;
1118} RD_CALC_SPEED_FEATURES;
1119
1120typedef struct WINNER_MODE_SPEED_FEATURES {
1121 // Flag used to control the winner mode processing for better R-D optimization
1122 // of quantized coeffs
1123 int enable_winner_mode_for_coeff_opt;
1124
1125 // Flag used to control the winner mode processing for transform size
1126 // search method
1127 int enable_winner_mode_for_tx_size_srch;
1128
1129 // Control transform size search level
1130 // Eval type: Default Mode Winner
1131 // Level 0 : FULL RD LARGEST ALL FULL RD
1132 // Level 1 : FAST RD LARGEST ALL FULL RD
1133 // Level 2 : LARGEST ALL LARGEST ALL FULL RD
1134 // Level 3 : LARGEST ALL LARGEST ALL LARGEST ALL
1135 int tx_size_search_level;
1136
1137 // Flag used to control the winner mode processing for use transform
1138 // domain distortion
1139 int enable_winner_mode_for_use_tx_domain_dist;
1140
1141 // Flag used to enable processing of multiple winner modes
1142 MULTI_WINNER_MODE_TYPE multi_winner_mode_type;
1143
1144 // Motion mode for winner candidates:
1145 // 0: speed feature OFF
1146 // 1 / 2 : Use configured number of winner candidates
1147 int motion_mode_for_winner_cand;
1148
1149 // Early DC only txfm block prediction
1150 // 0: speed feature OFF
1151 // 1 / 2 : Use the configured level for different modes
1152 int dc_blk_pred_level;
1153} WINNER_MODE_SPEED_FEATURES;
1154
1155typedef struct LOOP_FILTER_SPEED_FEATURES {
1156 // This feature controls how the loop filter level is determined.
1157 LPF_PICK_METHOD lpf_pick;
1158
1159 // Skip some final iterations in the determination of the best loop filter
1160 // level.
1161 int use_coarse_filter_level_search;
1162
1163 // Control how the CDEF strength is determined.
1164 CDEF_PICK_METHOD cdef_pick_method;
1165
1166 // Decoder side speed feature to add penalty for use of dual-sgr filters.
1167 // Takes values 0 - 10, 0 indicating no penalty and each additional level
1168 // adding a penalty of 1%
1169 int dual_sgr_penalty_level;
1170
1171 // prune sgr ep using binary search like mechanism
1172 int enable_sgr_ep_pruning;
1173
1174 // Disable loop restoration for Chroma plane
1175 int disable_loop_restoration_chroma;
1176
1177 // Disable loop restoration for luma plane
1178 int disable_loop_restoration_luma;
1179
1180 // Prune RESTORE_WIENER evaluation based on source variance
1181 // 0 : no pruning
1182 // 1 : conservative pruning
1183 // 2 : aggressive pruning
1184 int prune_wiener_based_on_src_var;
1185
1186 // Prune self-guided loop restoration based on wiener search results
1187 // 0 : no pruning
1188 // 1 : pruning based on rdcost ratio of RESTORE_WIENER and RESTORE_NONE
1189 // 2 : pruning based on winner restoration type among RESTORE_WIENER and
1190 // RESTORE_NONE
1191 int prune_sgr_based_on_wiener;
1192
1193 // Reduce the wiener filter win size for luma
1194 int reduce_wiener_window_size;
1195
1196 // Disable loop restoration filter
1197 int disable_lr_filter;
1198} LOOP_FILTER_SPEED_FEATURES;
1199
1200typedef struct REAL_TIME_SPEED_FEATURES {
1201 // check intra prediction for non-RD mode.
1202 int check_intra_pred_nonrd;
1203
1204 // skip checking intra prediction if TX is skipped
1205 int skip_intra_pred_if_tx_skip;
1206
1207 // Perform coarse ME before calculating variance in variance-based partition
1208 int estimate_motion_for_var_based_partition;
1209
1210 // For nonrd_use_partition: mode of extra check of leaf partition
1211 // 0 - don't check merge
1212 // 1 - always check merge
1213 // 2 - check merge and prune checking final split
1214 int nonrd_check_partition_merge_mode;
1215
1216 // For nonrd_use_partition: check of leaf partition extra split
1217 int nonrd_check_partition_split;
1218
1219 // Implements various heuristics to skip searching modes
1220 // The heuristics selected are based on flags
1221 // defined in the MODE_SEARCH_SKIP_HEURISTICS enum
1222 unsigned int mode_search_skip_flags;
1223
1224 // For nonrd: Reduces ref frame search.
1225 // 0 - low level of search prune in non last frames
1226 // 1 - pruned search in non last frames
1227 // 2 - more pruned search in non last frames
1228 int nonrd_prune_ref_frame_search;
1229
1230 // This flag controls the use of non-RD mode decision.
1231 int use_nonrd_pick_mode;
1232
1233 // Use ALTREF frame in non-RD mode decision.
1234 int use_nonrd_altref_frame;
1235
1236 // Use GOLDEN frame in pickmode decision.
1237 int use_golden_frame;
1238
1239 // Use compound reference for non-RD mode.
1240 int use_comp_ref_nonrd;
1241
1242 // Reference frames for compound prediction for nonrd pickmode:
1243 // LAST_GOLDEN (0), LAST_LAST2 (1), or LAST_ALTREF (2).
1244 int ref_frame_comp_nonrd[3];
1245
1246 // use reduced ref set for real-time mode
1247 int use_real_time_ref_set;
1248
1249 // Skip a number of expensive mode evaluations for blocks with very low
1250 // temporal variance.
1251 int short_circuit_low_temp_var;
1252
1253 // Use modeled (currently CurvFit model) RDCost for fast non-RD mode
1254 int use_modeled_non_rd_cost;
1255
1256 // Reuse inter prediction in fast non-rd mode.
1257 int reuse_inter_pred_nonrd;
1258
1259 // Number of best inter modes to search transform. INT_MAX - search all.
1260 int num_inter_modes_for_tx_search;
1261
1262 // Forces TX search off for RDCost calulation.
1263 int force_tx_search_off;
1264
1265 // Use interpolation filter search in non-RD mode decision.
1266 int use_nonrd_filter_search;
1267
1268 // Use simplified RD model for interpolation search and Intra
1269 int use_simple_rd_model;
1270
1271 // If set forces interpolation filter to EIGHTTAP_REGULAR
1272 int skip_interp_filter_search;
1273
1274 // For nonrd mode: use hybrid (rd for bsize < 16x16, otherwise nonrd)
1275 // intra mode search for intra only frames. If set to 0 then nonrd pick
1276 // intra is used for all blocks.
1277 int hybrid_intra_pickmode;
1278
1279 // Compute variance/sse on source difference, prior to encoding superblock.
1280 int source_metrics_sb_nonrd;
1281
1282 // Flag to indicate process for handling overshoot on slide/scene change,
1283 // for real-time CBR mode.
1284 OVERSHOOT_DETECTION_CBR overshoot_detection_cbr;
1285
1286 // Check for scene/content change detection on every frame before encoding.
1287 int check_scene_detection;
1288
1289 // Forces larger partition blocks in variance based partitioning
1290 int force_large_partition_blocks;
1291
1292 // uses results of temporal noise estimate
1293 int use_temporal_noise_estimate;
1294
1295 // Parameter indicating initial search window to be used in full-pixel search
1296 // for nonrd_pickmode. Range [0, MAX_MVSEARCH_STEPS - 1]. Lower value
1297 // indicates larger window. If set to 0, step_param is set based on internal
1298 // logic in set_mv_search_params().
1299 int fullpel_search_step_param;
1300
1301 // Skip loopfilter (and cdef) in svc real-time mode for
1302 // non_reference/droppable frames.
1303 int skip_loopfilter_non_reference;
1304
1305 // Bit mask to enable or disable intra modes for each prediction block size
1306 // separately, for nonrd pickmode.
1307 int intra_y_mode_bsize_mask_nrd[BLOCK_SIZES];
1308
1309 // Skips mode checks more agressively in nonRD mode
1310 int nonrd_agressive_skip;
1311
1312 // Skip cdef on 64x64 blocks when NEWMV or INTRA is not picked or color
1313 // sensitivity is off. When color sensitivity is on for a superblock, all
1314 // 64x64 blocks within will not skip.
1315 int skip_cdef_sb;
1316
1317 // Forces larger partition blocks in variance based partitioning for intra
1318 // frames
1319 int force_large_partition_blocks_intra;
1320
1321 // Skip evaluation of no split in tx size selection for merge partition
1322 int skip_tx_no_split_var_based_partition;
1323} REAL_TIME_SPEED_FEATURES;
1324
1330typedef struct SPEED_FEATURES {
1335
1340
1344 TPL_SPEED_FEATURES tpl_sf;
1345
1349 GLOBAL_MOTION_SPEED_FEATURES gm_sf;
1350
1354 PARTITION_SPEED_FEATURES part_sf;
1355
1359 MV_SPEED_FEATURES mv_sf;
1360
1364 INTER_MODE_SPEED_FEATURES inter_sf;
1365
1369 INTERP_FILTER_SPEED_FEATURES interp_sf;
1370
1374 INTRA_MODE_SPEED_FEATURES intra_sf;
1375
1379 TX_SPEED_FEATURES tx_sf;
1380
1384 RD_CALC_SPEED_FEATURES rd_sf;
1385
1389 WINNER_MODE_SPEED_FEATURES winner_mode_sf;
1390
1394 LOOP_FILTER_SPEED_FEATURES lpf_sf;
1395
1399 REAL_TIME_SPEED_FEATURES rt_sf;
1403struct AV1_COMP;
1404
1418 int speed);
1419
1432 int speed);
1444void av1_set_speed_features_qindex_dependent(struct AV1_COMP *cpi, int speed);
1445
1446#ifdef __cplusplus
1447} // extern "C"
1448#endif
1449
1450#endif // AOM_AV1_ENCODER_SPEED_FEATURES_H_
static int prune_zero_mv_with_sse(const aom_variance_fn_ptr_t *fn_ptr, const MACROBLOCK *x, BLOCK_SIZE bsize, const HandleInterModeArgs *args)
Prunes ZeroMV Search Using Best NEWMV's SSE.
Definition: rdopt.c:2464
void av1_set_speed_features_framesize_independent(struct AV1_COMP *cpi, int speed)
Frame size independent speed vs quality trade off flags.
void av1_set_speed_features_qindex_dependent(struct AV1_COMP *cpi, int speed)
Q index dependent speed vs quality trade off flags.
void av1_set_speed_features_framesize_dependent(struct AV1_COMP *cpi, int speed)
Frame size dependent speed vs quality trade off flags.
INTERNAL_COST_UPDATE_TYPE
This enum decides internally how often to update the entropy costs.
Definition: speed_features.h:314
@ INTERNAL_COST_UPD_OFF
Definition: speed_features.h:315
@ INTERNAL_COST_UPD_SBROW_SET
Definition: speed_features.h:316
@ INTERNAL_COST_UPD_SBROW
Definition: speed_features.h:317
@ INTERNAL_COST_UPD_SB
Definition: speed_features.h:318
struct SPEED_FEATURES SPEED_FEATURES
Top level speed vs quality trade off data struture.
struct HIGH_LEVEL_SPEED_FEATURES HIGH_LEVEL_SPEED_FEATURES
Sequence/frame level speed vs quality features.
struct FIRST_PASS_SPEED_FEATURES FIRST_PASS_SPEED_FEATURES
CDEF_PICK_METHOD
This enumeration defines a variety of CDEF pick methods.
Definition: speed_features.h:156
@ CDEF_FAST_SEARCH_LVL2
Definition: speed_features.h:159
@ CDEF_FAST_SEARCH_LVL1
Definition: speed_features.h:158
@ CDEF_FULL_SEARCH
Definition: speed_features.h:157
@ CDEF_PICK_FROM_Q
Definition: speed_features.h:163
@ CDEF_FAST_SEARCH_LVL4
Definition: speed_features.h:162
@ CDEF_FAST_SEARCH_LVL3
Definition: speed_features.h:160
Definition: speed_features.h:375
int disable_recon
Skips reconstruction by using source buffers for prediction.
Definition: speed_features.h:392
int reduce_mv_step_param
Reduces the mv search window. By default, the initial search window is around MIN(MIN(dims),...
Definition: speed_features.h:382
int skip_zeromv_motion_search
Skips the motion search centered on 0,0 mv.
Definition: speed_features.h:397
int skip_motion_search_threshold
Skips the motion search when the zero mv has small sse.
Definition: speed_features.h:387
Sequence/frame level speed vs quality features.
Definition: speed_features.h:324
int second_alt_ref_filtering
Definition: speed_features.h:369
int frame_parameter_update
Definition: speed_features.h:326
MV_PREC_LOGIC high_precision_mv_usage
Definition: speed_features.h:345
int disable_extra_sc_testing
Definition: speed_features.h:364
int recode_tolerance
Definition: speed_features.h:337
SUPERRES_AUTO_SEARCH_TYPE superres_auto_search_type
Definition: speed_features.h:359
int static_segmentation
Definition: speed_features.h:354
RECODE_LOOP_TYPE recode_loop
Definition: speed_features.h:331
Top level speed vs quality trade off data struture.
Definition: speed_features.h:1330
MV_SPEED_FEATURES mv_sf
Definition: speed_features.h:1359
TPL_SPEED_FEATURES tpl_sf
Definition: speed_features.h:1344
LOOP_FILTER_SPEED_FEATURES lpf_sf
Definition: speed_features.h:1394
TX_SPEED_FEATURES tx_sf
Definition: speed_features.h:1379
INTER_MODE_SPEED_FEATURES inter_sf
Definition: speed_features.h:1364
RD_CALC_SPEED_FEATURES rd_sf
Definition: speed_features.h:1384
PARTITION_SPEED_FEATURES part_sf
Definition: speed_features.h:1354
GLOBAL_MOTION_SPEED_FEATURES gm_sf
Definition: speed_features.h:1349
INTERP_FILTER_SPEED_FEATURES interp_sf
Definition: speed_features.h:1369
FIRST_PASS_SPEED_FEATURES fp_sf
Definition: speed_features.h:1339
INTRA_MODE_SPEED_FEATURES intra_sf
Definition: speed_features.h:1374
WINNER_MODE_SPEED_FEATURES winner_mode_sf
Definition: speed_features.h:1389
REAL_TIME_SPEED_FEATURES rt_sf
Definition: speed_features.h:1399
HIGH_LEVEL_SPEED_FEATURES hl_sf
Definition: speed_features.h:1334