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/*
* Copyright (c) 2019, 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 AOM_AV1_ENCODER_RDOPT_UTILS_H_
#define AOM_AV1_ENCODER_RDOPT_UTILS_H_
#include "aom/aom_integer.h"
#include "av1/encoder/block.h"
#include "av1/common/cfl.h"
#include "av1/common/pred_common.h"
#include "av1/encoder/rdopt_data_defs.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_REF_MV_SEARCH 3
#define MAX_TX_RD_GATE_LEVEL 5
#define INTER_INTRA_RD_THRESH_SCALE 9
#define INTER_INTRA_RD_THRESH_SHIFT 4
typedef struct {
PREDICTION_MODE mode;
MV_REFERENCE_FRAME ref_frame[2];
} MODE_DEFINITION;
// This array defines the mapping from the enums in THR_MODES to the actual
// prediction modes and refrence frames
static const MODE_DEFINITION av1_mode_defs[MAX_MODES] = {
{ NEARESTMV, { LAST_FRAME, NONE_FRAME } },
{ NEARESTMV, { LAST2_FRAME, NONE_FRAME } },
{ NEARESTMV, { LAST3_FRAME, NONE_FRAME } },
{ NEARESTMV, { BWDREF_FRAME, NONE_FRAME } },
{ NEARESTMV, { ALTREF2_FRAME, NONE_FRAME } },
{ NEARESTMV, { ALTREF_FRAME, NONE_FRAME } },
{ NEARESTMV, { GOLDEN_FRAME, NONE_FRAME } },
{ NEWMV, { LAST_FRAME, NONE_FRAME } },
{ NEWMV, { LAST2_FRAME, NONE_FRAME } },
{ NEWMV, { LAST3_FRAME, NONE_FRAME } },
{ NEWMV, { BWDREF_FRAME, NONE_FRAME } },
{ NEWMV, { ALTREF2_FRAME, NONE_FRAME } },
{ NEWMV, { ALTREF_FRAME, NONE_FRAME } },
{ NEWMV, { GOLDEN_FRAME, NONE_FRAME } },
{ NEARMV, { LAST_FRAME, NONE_FRAME } },
{ NEARMV, { LAST2_FRAME, NONE_FRAME } },
{ NEARMV, { LAST3_FRAME, NONE_FRAME } },
{ NEARMV, { BWDREF_FRAME, NONE_FRAME } },
{ NEARMV, { ALTREF2_FRAME, NONE_FRAME } },
{ NEARMV, { ALTREF_FRAME, NONE_FRAME } },
{ NEARMV, { GOLDEN_FRAME, NONE_FRAME } },
{ GLOBALMV, { LAST_FRAME, NONE_FRAME } },
{ GLOBALMV, { LAST2_FRAME, NONE_FRAME } },
{ GLOBALMV, { LAST3_FRAME, NONE_FRAME } },
{ GLOBALMV, { BWDREF_FRAME, NONE_FRAME } },
{ GLOBALMV, { ALTREF2_FRAME, NONE_FRAME } },
{ GLOBALMV, { ALTREF_FRAME, NONE_FRAME } },
{ GLOBALMV, { GOLDEN_FRAME, NONE_FRAME } },
// TODO(zoeliu): May need to reconsider the order on the modes to check
{ NEAREST_NEARESTMV, { LAST_FRAME, ALTREF_FRAME } },
{ NEAREST_NEARESTMV, { LAST2_FRAME, ALTREF_FRAME } },
{ NEAREST_NEARESTMV, { LAST3_FRAME, ALTREF_FRAME } },
{ NEAREST_NEARESTMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ NEAREST_NEARESTMV, { LAST_FRAME, BWDREF_FRAME } },
{ NEAREST_NEARESTMV, { LAST2_FRAME, BWDREF_FRAME } },
{ NEAREST_NEARESTMV, { LAST3_FRAME, BWDREF_FRAME } },
{ NEAREST_NEARESTMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ NEAREST_NEARESTMV, { LAST_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEARESTMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEARESTMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEARESTMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEARESTMV, { LAST_FRAME, LAST2_FRAME } },
{ NEAREST_NEARESTMV, { LAST_FRAME, LAST3_FRAME } },
{ NEAREST_NEARESTMV, { LAST_FRAME, GOLDEN_FRAME } },
{ NEAREST_NEARESTMV, { BWDREF_FRAME, ALTREF_FRAME } },
{ NEAR_NEARMV, { LAST_FRAME, BWDREF_FRAME } },
{ NEW_NEWMV, { LAST_FRAME, BWDREF_FRAME } },
{ NEW_NEARESTMV, { LAST_FRAME, BWDREF_FRAME } },
{ NEAREST_NEWMV, { LAST_FRAME, BWDREF_FRAME } },
{ NEW_NEARMV, { LAST_FRAME, BWDREF_FRAME } },
{ NEAR_NEWMV, { LAST_FRAME, BWDREF_FRAME } },
{ GLOBAL_GLOBALMV, { LAST_FRAME, BWDREF_FRAME } },
{ NEAR_NEARMV, { LAST_FRAME, ALTREF_FRAME } },
{ NEW_NEWMV, { LAST_FRAME, ALTREF_FRAME } },
{ NEW_NEARESTMV, { LAST_FRAME, ALTREF_FRAME } },
{ NEAREST_NEWMV, { LAST_FRAME, ALTREF_FRAME } },
{ NEW_NEARMV, { LAST_FRAME, ALTREF_FRAME } },
{ NEAR_NEWMV, { LAST_FRAME, ALTREF_FRAME } },
{ GLOBAL_GLOBALMV, { LAST_FRAME, ALTREF_FRAME } },
{ NEAR_NEARMV, { LAST2_FRAME, ALTREF_FRAME } },
{ NEW_NEWMV, { LAST2_FRAME, ALTREF_FRAME } },
{ NEW_NEARESTMV, { LAST2_FRAME, ALTREF_FRAME } },
{ NEAREST_NEWMV, { LAST2_FRAME, ALTREF_FRAME } },
{ NEW_NEARMV, { LAST2_FRAME, ALTREF_FRAME } },
{ NEAR_NEWMV, { LAST2_FRAME, ALTREF_FRAME } },
{ GLOBAL_GLOBALMV, { LAST2_FRAME, ALTREF_FRAME } },
{ NEAR_NEARMV, { LAST3_FRAME, ALTREF_FRAME } },
{ NEW_NEWMV, { LAST3_FRAME, ALTREF_FRAME } },
{ NEW_NEARESTMV, { LAST3_FRAME, ALTREF_FRAME } },
{ NEAREST_NEWMV, { LAST3_FRAME, ALTREF_FRAME } },
{ NEW_NEARMV, { LAST3_FRAME, ALTREF_FRAME } },
{ NEAR_NEWMV, { LAST3_FRAME, ALTREF_FRAME } },
{ GLOBAL_GLOBALMV, { LAST3_FRAME, ALTREF_FRAME } },
{ NEAR_NEARMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ NEW_NEWMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ NEW_NEARESTMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ NEAREST_NEWMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ NEW_NEARMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ NEAR_NEWMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ GLOBAL_GLOBALMV, { GOLDEN_FRAME, ALTREF_FRAME } },
{ NEAR_NEARMV, { LAST2_FRAME, BWDREF_FRAME } },
{ NEW_NEWMV, { LAST2_FRAME, BWDREF_FRAME } },
{ NEW_NEARESTMV, { LAST2_FRAME, BWDREF_FRAME } },
{ NEAREST_NEWMV, { LAST2_FRAME, BWDREF_FRAME } },
{ NEW_NEARMV, { LAST2_FRAME, BWDREF_FRAME } },
{ NEAR_NEWMV, { LAST2_FRAME, BWDREF_FRAME } },
{ GLOBAL_GLOBALMV, { LAST2_FRAME, BWDREF_FRAME } },
{ NEAR_NEARMV, { LAST3_FRAME, BWDREF_FRAME } },
{ NEW_NEWMV, { LAST3_FRAME, BWDREF_FRAME } },
{ NEW_NEARESTMV, { LAST3_FRAME, BWDREF_FRAME } },
{ NEAREST_NEWMV, { LAST3_FRAME, BWDREF_FRAME } },
{ NEW_NEARMV, { LAST3_FRAME, BWDREF_FRAME } },
{ NEAR_NEWMV, { LAST3_FRAME, BWDREF_FRAME } },
{ GLOBAL_GLOBALMV, { LAST3_FRAME, BWDREF_FRAME } },
{ NEAR_NEARMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ NEW_NEWMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ NEW_NEARESTMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ NEAREST_NEWMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ NEW_NEARMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ NEAR_NEWMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ GLOBAL_GLOBALMV, { GOLDEN_FRAME, BWDREF_FRAME } },
{ NEAR_NEARMV, { LAST_FRAME, ALTREF2_FRAME } },
{ NEW_NEWMV, { LAST_FRAME, ALTREF2_FRAME } },
{ NEW_NEARESTMV, { LAST_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEWMV, { LAST_FRAME, ALTREF2_FRAME } },
{ NEW_NEARMV, { LAST_FRAME, ALTREF2_FRAME } },
{ NEAR_NEWMV, { LAST_FRAME, ALTREF2_FRAME } },
{ GLOBAL_GLOBALMV, { LAST_FRAME, ALTREF2_FRAME } },
{ NEAR_NEARMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ NEW_NEWMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ NEW_NEARESTMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEWMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ NEW_NEARMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ NEAR_NEWMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ GLOBAL_GLOBALMV, { LAST2_FRAME, ALTREF2_FRAME } },
{ NEAR_NEARMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ NEW_NEWMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ NEW_NEARESTMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEWMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ NEW_NEARMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ NEAR_NEWMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ GLOBAL_GLOBALMV, { LAST3_FRAME, ALTREF2_FRAME } },
{ NEAR_NEARMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ NEW_NEWMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ NEW_NEARESTMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ NEAREST_NEWMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ NEW_NEARMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ NEAR_NEWMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ GLOBAL_GLOBALMV, { GOLDEN_FRAME, ALTREF2_FRAME } },
{ NEAR_NEARMV, { LAST_FRAME, LAST2_FRAME } },
{ NEW_NEWMV, { LAST_FRAME, LAST2_FRAME } },
{ NEW_NEARESTMV, { LAST_FRAME, LAST2_FRAME } },
{ NEAREST_NEWMV, { LAST_FRAME, LAST2_FRAME } },
{ NEW_NEARMV, { LAST_FRAME, LAST2_FRAME } },
{ NEAR_NEWMV, { LAST_FRAME, LAST2_FRAME } },
{ GLOBAL_GLOBALMV, { LAST_FRAME, LAST2_FRAME } },
{ NEAR_NEARMV, { LAST_FRAME, LAST3_FRAME } },
{ NEW_NEWMV, { LAST_FRAME, LAST3_FRAME } },
{ NEW_NEARESTMV, { LAST_FRAME, LAST3_FRAME } },
{ NEAREST_NEWMV, { LAST_FRAME, LAST3_FRAME } },
{ NEW_NEARMV, { LAST_FRAME, LAST3_FRAME } },
{ NEAR_NEWMV, { LAST_FRAME, LAST3_FRAME } },
{ GLOBAL_GLOBALMV, { LAST_FRAME, LAST3_FRAME } },
{ NEAR_NEARMV, { LAST_FRAME, GOLDEN_FRAME } },
{ NEW_NEWMV, { LAST_FRAME, GOLDEN_FRAME } },
{ NEW_NEARESTMV, { LAST_FRAME, GOLDEN_FRAME } },
{ NEAREST_NEWMV, { LAST_FRAME, GOLDEN_FRAME } },
{ NEW_NEARMV, { LAST_FRAME, GOLDEN_FRAME } },
{ NEAR_NEWMV, { LAST_FRAME, GOLDEN_FRAME } },
{ GLOBAL_GLOBALMV, { LAST_FRAME, GOLDEN_FRAME } },
{ NEAR_NEARMV, { BWDREF_FRAME, ALTREF_FRAME } },
{ NEW_NEWMV, { BWDREF_FRAME, ALTREF_FRAME } },
{ NEW_NEARESTMV, { BWDREF_FRAME, ALTREF_FRAME } },
{ NEAREST_NEWMV, { BWDREF_FRAME, ALTREF_FRAME } },
{ NEW_NEARMV, { BWDREF_FRAME, ALTREF_FRAME } },
{ NEAR_NEWMV, { BWDREF_FRAME, ALTREF_FRAME } },
{ GLOBAL_GLOBALMV, { BWDREF_FRAME, ALTREF_FRAME } },
// intra modes
{ DC_PRED, { INTRA_FRAME, NONE_FRAME } },
{ PAETH_PRED, { INTRA_FRAME, NONE_FRAME } },
{ SMOOTH_PRED, { INTRA_FRAME, NONE_FRAME } },
{ SMOOTH_V_PRED, { INTRA_FRAME, NONE_FRAME } },
{ SMOOTH_H_PRED, { INTRA_FRAME, NONE_FRAME } },
{ H_PRED, { INTRA_FRAME, NONE_FRAME } },
{ V_PRED, { INTRA_FRAME, NONE_FRAME } },
{ D135_PRED, { INTRA_FRAME, NONE_FRAME } },
{ D203_PRED, { INTRA_FRAME, NONE_FRAME } },
{ D157_PRED, { INTRA_FRAME, NONE_FRAME } },
{ D67_PRED, { INTRA_FRAME, NONE_FRAME } },
{ D113_PRED, { INTRA_FRAME, NONE_FRAME } },
{ D45_PRED, { INTRA_FRAME, NONE_FRAME } },
};
// Number of winner modes allowed for different values of the speed feature
// multi_winner_mode_type.
static const int winner_mode_count_allowed[MULTI_WINNER_MODE_LEVELS] = {
1, // MULTI_WINNER_MODE_OFF
2, // MULTI_WINNER_MODE_FAST
3 // MULTI_WINNER_MODE_DEFAULT
};
static inline void restore_dst_buf(MACROBLOCKD *xd, const BUFFER_SET dst,
const int num_planes) {
for (int i = 0; i < num_planes; i++) {
xd->plane[i].dst.buf = dst.plane[i];
xd->plane[i].dst.stride = dst.stride[i];
}
}
static inline void swap_dst_buf(MACROBLOCKD *xd, const BUFFER_SET *dst_bufs[2],
int num_planes) {
const BUFFER_SET *buf0 = dst_bufs[0];
dst_bufs[0] = dst_bufs[1];
dst_bufs[1] = buf0;
restore_dst_buf(xd, *dst_bufs[0], num_planes);
}
/* clang-format on */
// Calculate rd threshold based on ref best rd and relevant scaling factors
static inline int64_t get_rd_thresh_from_best_rd(int64_t ref_best_rd,
int mul_factor,
int div_factor) {
int64_t rd_thresh = ref_best_rd;
if (div_factor != 0) {
rd_thresh = ref_best_rd < (div_factor * (INT64_MAX / mul_factor))
? ((ref_best_rd / div_factor) * mul_factor)
: INT64_MAX;
}
return rd_thresh;
}
static inline THR_MODES get_prediction_mode_idx(
PREDICTION_MODE this_mode, MV_REFERENCE_FRAME ref_frame,
MV_REFERENCE_FRAME second_ref_frame) {
if (this_mode < INTRA_MODE_END) {
assert(ref_frame == INTRA_FRAME);
assert(second_ref_frame == NONE_FRAME);
return intra_to_mode_idx[this_mode - INTRA_MODE_START];
}
if (this_mode >= SINGLE_INTER_MODE_START &&
this_mode < SINGLE_INTER_MODE_END) {
assert((ref_frame > INTRA_FRAME) && (ref_frame <= ALTREF_FRAME));
return single_inter_to_mode_idx[this_mode - SINGLE_INTER_MODE_START]
[ref_frame];
}
if (this_mode >= COMP_INTER_MODE_START && this_mode < COMP_INTER_MODE_END &&
second_ref_frame != NONE_FRAME) {
assert((ref_frame > INTRA_FRAME) && (ref_frame <= ALTREF_FRAME));
assert((second_ref_frame > INTRA_FRAME) &&
(second_ref_frame <= ALTREF_FRAME));
return comp_inter_to_mode_idx[this_mode - COMP_INTER_MODE_START][ref_frame]
[second_ref_frame];
}
assert(0);
return THR_INVALID;
}
static inline int inter_mode_data_block_idx(BLOCK_SIZE bsize) {
if (bsize == BLOCK_4X4 || bsize == BLOCK_4X8 || bsize == BLOCK_8X4 ||
bsize == BLOCK_4X16 || bsize == BLOCK_16X4) {
return -1;
}
return 1;
}
// Get transform block visible dimensions cropped to the MI units.
static inline void get_txb_dimensions(const MACROBLOCKD *xd, int plane,
BLOCK_SIZE plane_bsize, int blk_row,
int blk_col, BLOCK_SIZE tx_bsize,
int *width, int *height,
int *visible_width, int *visible_height) {
assert(tx_bsize <= plane_bsize);
const int txb_height = block_size_high[tx_bsize];
const int txb_width = block_size_wide[tx_bsize];
const struct macroblockd_plane *const pd = &xd->plane[plane];
// TODO(aconverse@google.com): Investigate using crop_width/height here rather
// than the MI size
if (xd->mb_to_bottom_edge >= 0) {
*visible_height = txb_height;
} else {
const int block_height = block_size_high[plane_bsize];
const int block_rows =
(xd->mb_to_bottom_edge >> (3 + pd->subsampling_y)) + block_height;
*visible_height =
clamp(block_rows - (blk_row << MI_SIZE_LOG2), 0, txb_height);
}
if (height) *height = txb_height;
if (xd->mb_to_right_edge >= 0) {
*visible_width = txb_width;
} else {
const int block_width = block_size_wide[plane_bsize];
const int block_cols =
(xd->mb_to_right_edge >> (3 + pd->subsampling_x)) + block_width;
*visible_width =
clamp(block_cols - (blk_col << MI_SIZE_LOG2), 0, txb_width);
}
if (width) *width = txb_width;
}
static inline int bsize_to_num_blk(BLOCK_SIZE bsize) {
int num_blk = 1 << (num_pels_log2_lookup[bsize] - 2 * MI_SIZE_LOG2);
return num_blk;
}
static inline int check_txfm_eval(MACROBLOCK *const x, BLOCK_SIZE bsize,
int64_t best_skip_rd, int64_t skip_rd,
int level, int is_luma_only) {
int eval_txfm = 1;
// Derive aggressiveness factor for gating the transform search
// Lower value indicates more aggressiveness. Be more conservative (high
// value) for (i) low quantizers (ii) regions where prediction is poor
const int scale[MAX_TX_RD_GATE_LEVEL + 1] = { INT_MAX, 4, 3, 2, 2, 1 };
const int qslope = 2 * (!is_luma_only);
const int level_to_qindex_map[MAX_TX_RD_GATE_LEVEL + 1] = { 0, 0, 0,
80, 100, 140 };
int aggr_factor = 4;
assert(level <= MAX_TX_RD_GATE_LEVEL);
const int pred_qindex_thresh = level_to_qindex_map[level];
if (!is_luma_only && level <= 2) {
aggr_factor = 4 * AOMMAX(1, ROUND_POWER_OF_TWO((MAXQ - x->qindex) * qslope,
QINDEX_BITS));
}
if ((best_skip_rd >
(x->source_variance << (num_pels_log2_lookup[bsize] + RDDIV_BITS))) &&
(x->qindex >= pred_qindex_thresh))
aggr_factor *= scale[level];
// For level setting 1, be more conservative for non-luma-only case even when
// prediction is good.
else if ((level <= 1) && !is_luma_only)
aggr_factor = (aggr_factor >> 2) * 6;
// Be more conservative for luma only cases (called from compound type rd)
// since best_skip_rd is computed after and skip_rd is computed (with 8-bit
// prediction signals blended for WEDGE/DIFFWTD rather than 16-bit) before
// interpolation filter search
const int luma_mul[MAX_TX_RD_GATE_LEVEL + 1] = {
INT_MAX, 32, 29, 17, 17, 17
};
int mul_factor = is_luma_only ? luma_mul[level] : 16;
int64_t rd_thresh =
(best_skip_rd == INT64_MAX)
? best_skip_rd
: (int64_t)(best_skip_rd * aggr_factor * mul_factor >> 6);
if (skip_rd > rd_thresh) eval_txfm = 0;
return eval_txfm;
}
static TX_MODE select_tx_mode(
const AV1_COMMON *cm, const TX_SIZE_SEARCH_METHOD tx_size_search_method) {
if (cm->features.coded_lossless) return ONLY_4X4;
if (tx_size_search_method == USE_LARGESTALL) {
return TX_MODE_LARGEST;
} else {
assert(tx_size_search_method == USE_FULL_RD ||
tx_size_search_method == USE_FAST_RD);
return TX_MODE_SELECT;
}
}
// Checks the conditions to disable winner mode processing
static inline int bypass_winner_mode_processing(const MACROBLOCK *const x,
const SPEED_FEATURES *sf,
int use_txfm_skip,
int actual_txfm_skip,
PREDICTION_MODE best_mode) {
const int prune_winner_mode_eval_level =
sf->winner_mode_sf.prune_winner_mode_eval_level;
// Disable winner mode processing for blocks with low source variance.
// The aggressiveness of this pruning logic reduces as qindex increases.
// The threshold decreases linearly from 64 as qindex varies from 0 to 255.
if (prune_winner_mode_eval_level == 1) {
const unsigned int src_var_thresh = 64 - 48 * x->qindex / (MAXQ + 1);
if (x->source_variance < src_var_thresh) return 1;
} else if (prune_winner_mode_eval_level == 2) {
// Skip winner mode processing of blocks for which transform turns out to be
// skip due to nature of eob alone except NEWMV mode.
if (!have_newmv_in_inter_mode(best_mode) && actual_txfm_skip) return 1;
} else if (prune_winner_mode_eval_level == 3) {
// Skip winner mode processing of blocks for which transform turns out to be
// skip except NEWMV mode and considered based on the quantizer.
// At high quantizers: Take conservative approach by considering transform
// skip based on eob alone.
// At low quantizers: Consider transform skip based on eob nature or RD cost
// evaluation.
const int is_txfm_skip =
x->qindex > 127 ? actual_txfm_skip : actual_txfm_skip || use_txfm_skip;
if (!have_newmv_in_inter_mode(best_mode) && is_txfm_skip) return 1;
} else if (prune_winner_mode_eval_level >= 4) {
// Do not skip winner mode evaluation at low quantizers if normal mode's
// transform search was too aggressive.
if (sf->rd_sf.perform_coeff_opt >= 5 && x->qindex <= 70) return 0;
if (use_txfm_skip || actual_txfm_skip) return 1;
}
return 0;
}
// Checks the conditions to enable winner mode processing
static inline int is_winner_mode_processing_enabled(const struct AV1_COMP *cpi,
const MACROBLOCK *const x,
MB_MODE_INFO *const mbmi,
int actual_txfm_skip) {
const SPEED_FEATURES *sf = &cpi->sf;
const PREDICTION_MODE best_mode = mbmi->mode;
if (bypass_winner_mode_processing(x, sf, mbmi->skip_txfm, actual_txfm_skip,
best_mode))
return 0;
// TODO(any): Move block independent condition checks to frame level
if (is_inter_block(mbmi)) {
if (is_inter_mode(best_mode) &&
(sf->tx_sf.tx_type_search.fast_inter_tx_type_prob_thresh != INT_MAX) &&
!cpi->oxcf.txfm_cfg.use_inter_dct_only)
return 1;
} else {
if (sf->tx_sf.tx_type_search.fast_intra_tx_type_search &&
!cpi->oxcf.txfm_cfg.use_intra_default_tx_only &&
!cpi->oxcf.txfm_cfg.use_intra_dct_only)
return 1;
}
// Check speed feature related to winner mode processing
if (sf->winner_mode_sf.enable_winner_mode_for_coeff_opt &&
cpi->optimize_seg_arr[mbmi->segment_id] != NO_TRELLIS_OPT &&
cpi->optimize_seg_arr[mbmi->segment_id] != FINAL_PASS_TRELLIS_OPT)
return 1;
if (sf->winner_mode_sf.enable_winner_mode_for_tx_size_srch) return 1;
return 0;
}
static inline void set_tx_size_search_method(
const AV1_COMMON *cm, const WinnerModeParams *winner_mode_params,
TxfmSearchParams *txfm_params, int enable_winner_mode_for_tx_size_srch,
int is_winner_mode) {
// Populate transform size search method/transform mode appropriately
txfm_params->tx_size_search_method =
winner_mode_params->tx_size_search_methods[DEFAULT_EVAL];
if (enable_winner_mode_for_tx_size_srch) {
if (is_winner_mode)
txfm_params->tx_size_search_method =
winner_mode_params->tx_size_search_methods[WINNER_MODE_EVAL];
else
txfm_params->tx_size_search_method =
winner_mode_params->tx_size_search_methods[MODE_EVAL];
}
txfm_params->tx_mode_search_type =
select_tx_mode(cm, txfm_params->tx_size_search_method);
}
static inline void set_tx_type_prune(const SPEED_FEATURES *sf,
TxfmSearchParams *txfm_params,
int winner_mode_tx_type_pruning,
int is_winner_mode) {
// Populate prune transform mode appropriately
txfm_params->prune_2d_txfm_mode = sf->tx_sf.tx_type_search.prune_2d_txfm_mode;
if (!winner_mode_tx_type_pruning) return;
const int prune_mode[4][2] = { { TX_TYPE_PRUNE_3, TX_TYPE_PRUNE_0 },
{ TX_TYPE_PRUNE_4, TX_TYPE_PRUNE_0 },
{ TX_TYPE_PRUNE_5, TX_TYPE_PRUNE_2 },
{ TX_TYPE_PRUNE_5, TX_TYPE_PRUNE_3 } };
txfm_params->prune_2d_txfm_mode =
prune_mode[winner_mode_tx_type_pruning - 1][is_winner_mode];
}
static inline void set_tx_domain_dist_params(
const WinnerModeParams *winner_mode_params, TxfmSearchParams *txfm_params,
int enable_winner_mode_for_tx_domain_dist, int is_winner_mode) {
if (txfm_params->use_qm_dist_metric) {
// QM-weighted PSNR is computed in transform space, so we need to forcibly
// enable the use of tx domain distortion.
txfm_params->use_transform_domain_distortion = 1;
txfm_params->tx_domain_dist_threshold = 0;
return;
}
if (!enable_winner_mode_for_tx_domain_dist) {
txfm_params->use_transform_domain_distortion =
winner_mode_params->use_transform_domain_distortion[DEFAULT_EVAL];
txfm_params->tx_domain_dist_threshold =
winner_mode_params->tx_domain_dist_threshold[DEFAULT_EVAL];
return;
}
if (is_winner_mode) {
txfm_params->use_transform_domain_distortion =
winner_mode_params->use_transform_domain_distortion[WINNER_MODE_EVAL];
txfm_params->tx_domain_dist_threshold =
winner_mode_params->tx_domain_dist_threshold[WINNER_MODE_EVAL];
} else {
txfm_params->use_transform_domain_distortion =
winner_mode_params->use_transform_domain_distortion[MODE_EVAL];
txfm_params->tx_domain_dist_threshold =
winner_mode_params->tx_domain_dist_threshold[MODE_EVAL];
}
}
// This function sets mode parameters for different mode evaluation stages
static inline void set_mode_eval_params(const struct AV1_COMP *cpi,
MACROBLOCK *x,
MODE_EVAL_TYPE mode_eval_type) {
const AV1_COMMON *cm = &cpi->common;
const SPEED_FEATURES *sf = &cpi->sf;
const WinnerModeParams *winner_mode_params = &cpi->winner_mode_params;
TxfmSearchParams *txfm_params = &x->txfm_search_params;
txfm_params->use_qm_dist_metric =
cpi->oxcf.tune_cfg.dist_metric == AOM_DIST_METRIC_QM_PSNR;
switch (mode_eval_type) {
case DEFAULT_EVAL:
txfm_params->default_inter_tx_type_prob_thresh = INT_MAX;
txfm_params->use_default_intra_tx_type = 0;
txfm_params->skip_txfm_level =
winner_mode_params->skip_txfm_level[DEFAULT_EVAL];
txfm_params->predict_dc_level =
winner_mode_params->predict_dc_level[DEFAULT_EVAL];
// Set default transform domain distortion type
set_tx_domain_dist_params(winner_mode_params, txfm_params, 0, 0);
// Get default threshold for R-D optimization of coefficients
get_rd_opt_coeff_thresh(winner_mode_params->coeff_opt_thresholds,
txfm_params, 0, 0);
// Set default transform size search method
set_tx_size_search_method(cm, winner_mode_params, txfm_params, 0, 0);
// Set default transform type prune
set_tx_type_prune(sf, txfm_params, 0, 0);
break;
case MODE_EVAL:
txfm_params->use_default_intra_tx_type =
(cpi->sf.tx_sf.tx_type_search.fast_intra_tx_type_search ||
cpi->oxcf.txfm_cfg.use_intra_default_tx_only);
txfm_params->default_inter_tx_type_prob_thresh =
cpi->sf.tx_sf.tx_type_search.fast_inter_tx_type_prob_thresh;
txfm_params->skip_txfm_level =
winner_mode_params->skip_txfm_level[MODE_EVAL];
txfm_params->predict_dc_level =
winner_mode_params->predict_dc_level[MODE_EVAL];
// Set transform domain distortion type for mode evaluation
set_tx_domain_dist_params(
winner_mode_params, txfm_params,
sf->winner_mode_sf.enable_winner_mode_for_use_tx_domain_dist, 0);
// Get threshold for R-D optimization of coefficients during mode
// evaluation
get_rd_opt_coeff_thresh(
winner_mode_params->coeff_opt_thresholds, txfm_params,
sf->winner_mode_sf.enable_winner_mode_for_coeff_opt, 0);
// Set the transform size search method for mode evaluation
set_tx_size_search_method(
cm, winner_mode_params, txfm_params,
sf->winner_mode_sf.enable_winner_mode_for_tx_size_srch, 0);
// Set transform type prune for mode evaluation
set_tx_type_prune(sf, txfm_params,
sf->tx_sf.tx_type_search.winner_mode_tx_type_pruning,
0);
break;
case WINNER_MODE_EVAL:
txfm_params->default_inter_tx_type_prob_thresh = INT_MAX;
txfm_params->use_default_intra_tx_type = 0;
txfm_params->skip_txfm_level =
winner_mode_params->skip_txfm_level[WINNER_MODE_EVAL];
txfm_params->predict_dc_level =
winner_mode_params->predict_dc_level[WINNER_MODE_EVAL];
// Set transform domain distortion type for winner mode evaluation
set_tx_domain_dist_params(
winner_mode_params, txfm_params,
sf->winner_mode_sf.enable_winner_mode_for_use_tx_domain_dist, 1);
// Get threshold for R-D optimization of coefficients for winner mode
// evaluation
get_rd_opt_coeff_thresh(
winner_mode_params->coeff_opt_thresholds, txfm_params,
sf->winner_mode_sf.enable_winner_mode_for_coeff_opt, 1);
// Set the transform size search method for winner mode evaluation
set_tx_size_search_method(
cm, winner_mode_params, txfm_params,
sf->winner_mode_sf.enable_winner_mode_for_tx_size_srch, 1);
// Set default transform type prune mode for winner mode evaluation
set_tx_type_prune(sf, txfm_params,
sf->tx_sf.tx_type_search.winner_mode_tx_type_pruning,
1);
break;
default: assert(0);
}
// Rd record collected at a specific mode evaluation stage can not be used
// across other evaluation stages as the transform parameters are different.
// Hence, reset mb rd record whenever mode evaluation stage type changes.
if (txfm_params->mode_eval_type != mode_eval_type)
reset_mb_rd_record(x->txfm_search_info.mb_rd_record);
txfm_params->mode_eval_type = mode_eval_type;
}
// Similar to store_cfl_required(), but for use during the RDO process,
// where we haven't yet determined whether this block uses CfL.
static inline CFL_ALLOWED_TYPE store_cfl_required_rdo(const AV1_COMMON *cm,
const MACROBLOCK *x) {
const MACROBLOCKD *xd = &x->e_mbd;
if (cm->seq_params->monochrome || !xd->is_chroma_ref) return CFL_DISALLOWED;
if (!xd->is_chroma_ref) {
// For non-chroma-reference blocks, we should always store the luma pixels,
// in case the corresponding chroma-reference block uses CfL.
// Note that this can only happen for block sizes which are <8 on
// their shortest side, as otherwise they would be chroma reference
// blocks.
return CFL_ALLOWED;
}
// For chroma reference blocks, we should store data in the encoder iff we're
// allowed to try out CfL.
return is_cfl_allowed(xd);
}
static inline void init_sbuv_mode(MB_MODE_INFO *const mbmi) {
mbmi->uv_mode = UV_DC_PRED;
mbmi->palette_mode_info.palette_size[1] = 0;
}
// Store best mode stats for winner mode processing
static inline void store_winner_mode_stats(
const AV1_COMMON *const cm, MACROBLOCK *x, const MB_MODE_INFO *mbmi,
RD_STATS *rd_cost, RD_STATS *rd_cost_y, RD_STATS *rd_cost_uv,
THR_MODES mode_index, uint8_t *color_map, BLOCK_SIZE bsize, int64_t this_rd,
int multi_winner_mode_type, int txfm_search_done) {
WinnerModeStats *winner_mode_stats = x->winner_mode_stats;
int mode_idx = 0;
int is_palette_mode = mbmi->palette_mode_info.palette_size[PLANE_TYPE_Y] > 0;
// Mode stat is not required when multiwinner mode processing is disabled
if (multi_winner_mode_type == MULTI_WINNER_MODE_OFF) return;
// Ignore mode with maximum rd
if (this_rd == INT64_MAX) return;
// TODO(any): Winner mode processing is currently not applicable for palette
// mode in Inter frames. Clean-up the following code, once support is added
if (!frame_is_intra_only(cm) && is_palette_mode) return;
int max_winner_mode_count = winner_mode_count_allowed[multi_winner_mode_type];
assert(x->winner_mode_count >= 0 &&
x->winner_mode_count <= max_winner_mode_count);
if (x->winner_mode_count) {
// Find the mode which has higher rd cost than this_rd
for (mode_idx = 0; mode_idx < x->winner_mode_count; mode_idx++)
if (winner_mode_stats[mode_idx].rd > this_rd) break;
if (mode_idx == max_winner_mode_count) {
// No mode has higher rd cost than this_rd
return;
} else if (mode_idx < max_winner_mode_count - 1) {
// Create a slot for current mode and move others to the next slot
memmove(
&winner_mode_stats[mode_idx + 1], &winner_mode_stats[mode_idx],
(max_winner_mode_count - mode_idx - 1) * sizeof(*winner_mode_stats));
}
}
// Add a mode stat for winner mode processing
winner_mode_stats[mode_idx].mbmi = *mbmi;
winner_mode_stats[mode_idx].rd = this_rd;
winner_mode_stats[mode_idx].mode_index = mode_index;
// Update rd stats required for inter frame
if (!frame_is_intra_only(cm) && rd_cost && rd_cost_y && rd_cost_uv) {
const MACROBLOCKD *xd = &x->e_mbd;
const int skip_ctx = av1_get_skip_txfm_context(xd);
const int is_intra_mode = av1_mode_defs[mode_index].mode < INTRA_MODE_END;
const int skip_txfm = mbmi->skip_txfm && !is_intra_mode;
winner_mode_stats[mode_idx].rd_cost = *rd_cost;
if (txfm_search_done) {
winner_mode_stats[mode_idx].rate_y =
rd_cost_y->rate +
x->mode_costs
.skip_txfm_cost[skip_ctx][rd_cost->skip_txfm || skip_txfm];
winner_mode_stats[mode_idx].rate_uv = rd_cost_uv->rate;
}
}
if (color_map) {
// Store color_index_map for palette mode
const MACROBLOCKD *const xd = &x->e_mbd;
int block_width, block_height;
av1_get_block_dimensions(bsize, AOM_PLANE_Y, xd, &block_width,
&block_height, NULL, NULL);
memcpy(winner_mode_stats[mode_idx].color_index_map, color_map,
block_width * block_height * sizeof(color_map[0]));
}
x->winner_mode_count =
AOMMIN(x->winner_mode_count + 1, max_winner_mode_count);
}
unsigned int av1_get_perpixel_variance(const AV1_COMP *cpi,
const MACROBLOCKD *xd,
const struct buf_2d *ref,
BLOCK_SIZE bsize, int plane,
int use_hbd);
unsigned int av1_get_perpixel_variance_facade(const struct AV1_COMP *cpi,
const MACROBLOCKD *xd,
const struct buf_2d *ref,
BLOCK_SIZE bsize, int plane);
static inline int is_mode_intra(PREDICTION_MODE mode) {
return mode < INTRA_MODE_END;
}
// This function will copy usable ref_mv_stack[ref_frame][4] and
// weight[ref_frame][4] information from ref_mv_stack[ref_frame][8] and
// weight[ref_frame][8].
static inline void av1_copy_usable_ref_mv_stack_and_weight(
const MACROBLOCKD *xd, MB_MODE_INFO_EXT *const mbmi_ext,
MV_REFERENCE_FRAME ref_frame) {
memcpy(mbmi_ext->weight[ref_frame], xd->weight[ref_frame],
USABLE_REF_MV_STACK_SIZE * sizeof(xd->weight[0][0]));
memcpy(mbmi_ext->ref_mv_stack[ref_frame], xd->ref_mv_stack[ref_frame],
USABLE_REF_MV_STACK_SIZE * sizeof(xd->ref_mv_stack[0][0]));
}
// Get transform rd gate level for the given transform search case.
static inline int get_txfm_rd_gate_level(
const int is_masked_compound_enabled,
const int txfm_rd_gate_level[TX_SEARCH_CASES], BLOCK_SIZE bsize,
TX_SEARCH_CASE tx_search_case, int eval_motion_mode) {
assert(tx_search_case < TX_SEARCH_CASES);
if (tx_search_case == TX_SEARCH_MOTION_MODE && !eval_motion_mode &&
num_pels_log2_lookup[bsize] > 8)
return txfm_rd_gate_level[TX_SEARCH_MOTION_MODE];
// Enable aggressive gating of transform search only when masked compound type
// is enabled.
else if (tx_search_case == TX_SEARCH_COMP_TYPE_MODE &&
is_masked_compound_enabled)
return txfm_rd_gate_level[TX_SEARCH_COMP_TYPE_MODE];
return txfm_rd_gate_level[TX_SEARCH_DEFAULT];
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AV1_ENCODER_RDOPT_UTILS_H_