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/*
* Copyright (c) 2020, 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_ENCODEFRAME_UTILS_H_
#define AOM_AV1_ENCODER_ENCODEFRAME_UTILS_H_
#include "aom_ports/aom_timer.h"
#include "av1/common/reconinter.h"
#include "av1/encoder/encoder.h"
#include "av1/encoder/rdopt.h"
#ifdef __cplusplus
extern "C" {
#endif
#define WRITE_FEATURE_TO_FILE 0
#define FEATURE_SIZE_SMS_SPLIT_FAST 6
#define FEATURE_SIZE_SMS_SPLIT 17
#define FEATURE_SIZE_SMS_PRUNE_PART 25
#define FEATURE_SIZE_SMS_TERM_NONE 28
#define FEATURE_SIZE_FP_SMS_TERM_NONE 20
#define FEATURE_SIZE_MAX_MIN_PART_PRED 13
#define MAX_NUM_CLASSES_MAX_MIN_PART_PRED 4
#define FEATURE_SMS_NONE_FLAG 1
#define FEATURE_SMS_SPLIT_FLAG (1 << 1)
#define FEATURE_SMS_RECT_FLAG (1 << 2)
#define FEATURE_SMS_PRUNE_PART_FLAG \
(FEATURE_SMS_NONE_FLAG | FEATURE_SMS_SPLIT_FLAG | FEATURE_SMS_RECT_FLAG)
#define FEATURE_SMS_SPLIT_MODEL_FLAG \
(FEATURE_SMS_NONE_FLAG | FEATURE_SMS_SPLIT_FLAG)
// Number of sub-partitions in rectangular partition types.
#define SUB_PARTITIONS_RECT 2
// Number of sub-partitions in split partition type.
#define SUB_PARTITIONS_SPLIT 4
// Number of sub-partitions in AB partition types.
#define SUB_PARTITIONS_AB 3
// Number of sub-partitions in 4-way partition types.
#define SUB_PARTITIONS_PART4 4
// 4part partition types.
enum { HORZ4 = 0, VERT4, NUM_PART4_TYPES } UENUM1BYTE(PART4_TYPES);
// AB partition types.
enum {
HORZ_A = 0,
HORZ_B,
VERT_A,
VERT_B,
NUM_AB_PARTS
} UENUM1BYTE(AB_PART_TYPE);
// Rectangular partition types.
enum { HORZ = 0, VERT, NUM_RECT_PARTS } UENUM1BYTE(RECT_PART_TYPE);
// Structure to keep win flags for HORZ and VERT partition evaluations.
typedef struct {
int rect_part_win[NUM_RECT_PARTS];
} RD_RECT_PART_WIN_INFO;
enum { PICK_MODE_RD = 0, PICK_MODE_NONRD };
enum {
SB_SINGLE_PASS, // Single pass encoding: all ctxs get updated normally
SB_DRY_PASS, // First pass of multi-pass: does not update the ctxs
SB_WET_PASS // Second pass of multi-pass: finalize and update the ctx
} UENUM1BYTE(SB_MULTI_PASS_MODE);
typedef struct {
ENTROPY_CONTEXT a[MAX_MIB_SIZE * MAX_MB_PLANE];
ENTROPY_CONTEXT l[MAX_MIB_SIZE * MAX_MB_PLANE];
PARTITION_CONTEXT sa[MAX_MIB_SIZE];
PARTITION_CONTEXT sl[MAX_MIB_SIZE];
TXFM_CONTEXT *p_ta;
TXFM_CONTEXT *p_tl;
TXFM_CONTEXT ta[MAX_MIB_SIZE];
TXFM_CONTEXT tl[MAX_MIB_SIZE];
} RD_SEARCH_MACROBLOCK_CONTEXT;
// This struct is used to store the statistics used by sb-level multi-pass
// encoding. Currently, this is only used to make a copy of the state before we
// perform the first pass
typedef struct SB_FIRST_PASS_STATS {
RD_SEARCH_MACROBLOCK_CONTEXT x_ctx;
RD_COUNTS rd_count;
int split_count;
FRAME_COUNTS fc;
InterModeRdModel inter_mode_rd_models[BLOCK_SIZES_ALL];
int thresh_freq_fact[BLOCK_SIZES_ALL][MAX_MODES];
int current_qindex;
#if CONFIG_INTERNAL_STATS
unsigned int mode_chosen_counts[MAX_MODES];
#endif // CONFIG_INTERNAL_STATS
} SB_FIRST_PASS_STATS;
// This structure contains block size related
// variables for use in rd_pick_partition().
typedef struct {
// Half of block width to determine block edge.
int mi_step;
// Block row and column indices.
int mi_row;
int mi_col;
// Block edge row and column indices.
int mi_row_edge;
int mi_col_edge;
// Block width of current partition block.
int width;
// Block width of minimum partition size allowed.
int min_partition_size_1d;
// Flag to indicate if partition is 8x8 or higher size.
int bsize_at_least_8x8;
// Indicates edge blocks in frame.
int has_rows;
int has_cols;
// Block size of current partition.
BLOCK_SIZE bsize;
// Size of current sub-partition.
BLOCK_SIZE subsize;
// Size of split partition.
BLOCK_SIZE split_bsize2;
} PartitionBlkParams;
#if CONFIG_COLLECT_PARTITION_STATS
typedef struct PartitionTimingStats {
// Tracks the number of partition decision used in the current call to \ref
// av1_rd_pick_partition
int partition_decisions[EXT_PARTITION_TYPES];
// Tracks the number of partition_block searched in the current call to \ref
// av1_rd_pick_partition
int partition_attempts[EXT_PARTITION_TYPES];
// Tracks the time spent on each partition search in the current call to \ref
// av1_rd_pick_partition
int64_t partition_times[EXT_PARTITION_TYPES];
// Tracks the rdcost spent on each partition search in the current call to
// \ref av1_rd_pick_partition
int64_t partition_rdcost[EXT_PARTITION_TYPES];
// Timer used to time the partitions.
struct aom_usec_timer timer;
// Whether the timer is on
int timer_is_on;
} PartitionTimingStats;
#endif // CONFIG_COLLECT_PARTITION_STATS
// Structure holding state variables for partition search.
typedef struct {
// Intra partitioning related info.
PartitionSearchInfo *intra_part_info;
// Parameters related to partition block size.
PartitionBlkParams part_blk_params;
// Win flags for HORZ and VERT partition evaluations.
RD_RECT_PART_WIN_INFO split_part_rect_win[SUB_PARTITIONS_SPLIT];
// RD cost for the current block of given partition type.
RD_STATS this_rdc;
// RD cost summed across all blocks of partition type.
RD_STATS sum_rdc;
// Array holding partition type cost.
int tmp_partition_cost[PARTITION_TYPES];
// Pointer to partition cost buffer
int *partition_cost;
// RD costs for different partition types.
int64_t none_rd;
int64_t split_rd[SUB_PARTITIONS_SPLIT];
// RD costs for rectangular partitions.
// rect_part_rd[0][i] is the RD cost of ith partition index of PARTITION_HORZ.
// rect_part_rd[1][i] is the RD cost of ith partition index of PARTITION_VERT.
int64_t rect_part_rd[NUM_RECT_PARTS][SUB_PARTITIONS_RECT];
// Flags indicating if the corresponding partition was winner or not.
// Used to bypass similar blocks during AB partition evaluation.
int is_split_ctx_is_ready[2];
int is_rect_ctx_is_ready[NUM_RECT_PARTS];
// If true, skips the rest of partition evaluation at the current bsize level.
int terminate_partition_search;
// If false, skips rdopt on PARTITION_NONE.
int partition_none_allowed;
// If partition_rect_allowed[HORZ] is false, skips searching PARTITION_HORZ,
// PARTITION_HORZ_A, PARTITIO_HORZ_B, PARTITION_HORZ_4. Same holds for VERT.
int partition_rect_allowed[NUM_RECT_PARTS];
// If false, skips searching rectangular partition unless some logic related
// to edge detection holds.
int do_rectangular_split;
// If false, skips searching PARTITION_SPLIT.
int do_square_split;
// If true, prunes the corresponding PARTITION_HORZ/PARTITION_VERT. Note that
// this does not directly affect the extended partitions, so this can be used
// to prune out PARTITION_HORZ/PARTITION_VERT while still allowing rdopt of
// PARTITION_HORZ_AB4, etc.
int prune_rect_part[NUM_RECT_PARTS];
// Chroma subsampling in x and y directions.
int ss_x;
int ss_y;
// Partition plane context index.
int pl_ctx_idx;
// This flag will be set if best partition is found from the search.
bool found_best_partition;
#if CONFIG_COLLECT_PARTITION_STATS
PartitionTimingStats part_timing_stats;
#endif // CONFIG_COLLECT_PARTITION_STATS
} PartitionSearchState;
static AOM_INLINE void av1_disable_square_split_partition(
PartitionSearchState *part_state) {
part_state->do_square_split = 0;
}
// Disables all possible rectangular splits. This includes PARTITION_AB4 as they
// depend on the corresponding partition_rect_allowed.
static AOM_INLINE void av1_disable_rect_partitions(
PartitionSearchState *part_state) {
part_state->do_rectangular_split = 0;
part_state->partition_rect_allowed[HORZ] = 0;
part_state->partition_rect_allowed[VERT] = 0;
}
// Disables all possible splits so that only PARTITION_NONE *might* be allowed.
static AOM_INLINE void av1_disable_all_splits(
PartitionSearchState *part_state) {
av1_disable_square_split_partition(part_state);
av1_disable_rect_partitions(part_state);
}
static AOM_INLINE void av1_set_square_split_only(
PartitionSearchState *part_state) {
part_state->partition_none_allowed = 0;
part_state->do_square_split = 1;
av1_disable_rect_partitions(part_state);
}
static AOM_INLINE bool av1_blk_has_rows_and_cols(
const PartitionBlkParams *blk_params) {
return blk_params->has_rows && blk_params->has_cols;
}
static AOM_INLINE bool av1_is_whole_blk_in_frame(
const PartitionBlkParams *blk_params,
const CommonModeInfoParams *mi_params) {
const int mi_row = blk_params->mi_row, mi_col = blk_params->mi_col;
const BLOCK_SIZE bsize = blk_params->bsize;
return mi_row + mi_size_high[bsize] <= mi_params->mi_rows &&
mi_col + mi_size_wide[bsize] <= mi_params->mi_cols;
}
static AOM_INLINE void update_filter_type_cdf(const MACROBLOCKD *xd,
const MB_MODE_INFO *mbmi,
int dual_filter) {
for (int dir = 0; dir < 2; ++dir) {
if (dir && !dual_filter) break;
const int ctx = av1_get_pred_context_switchable_interp(xd, dir);
InterpFilter filter = av1_extract_interp_filter(mbmi->interp_filters, dir);
update_cdf(xd->tile_ctx->switchable_interp_cdf[ctx], filter,
SWITCHABLE_FILTERS);
}
}
static AOM_INLINE int set_rdmult(const AV1_COMP *const cpi,
const MACROBLOCK *const x, int segment_id) {
const AV1_COMMON *const cm = &cpi->common;
const GF_GROUP *const gf_group = &cpi->ppi->gf_group;
const CommonQuantParams *quant_params = &cm->quant_params;
const aom_bit_depth_t bit_depth = cm->seq_params->bit_depth;
const FRAME_UPDATE_TYPE update_type =
cpi->ppi->gf_group.update_type[cpi->gf_frame_index];
const FRAME_TYPE frame_type = cm->current_frame.frame_type;
const int boost_index = AOMMIN(15, (cpi->ppi->p_rc.gfu_boost / 100));
const int layer_depth = AOMMIN(gf_group->layer_depth[cpi->gf_frame_index], 6);
int qindex;
if (segment_id >= 0) {
qindex = av1_get_qindex(&cm->seg, segment_id, cm->quant_params.base_qindex);
} else {
qindex = quant_params->base_qindex + x->rdmult_delta_qindex +
quant_params->y_dc_delta_q;
}
return av1_compute_rd_mult(
qindex, bit_depth, update_type, layer_depth, boost_index, frame_type,
cpi->oxcf.q_cfg.use_fixed_qp_offsets, is_stat_consumption_stage(cpi));
}
static AOM_INLINE int do_split_check(BLOCK_SIZE bsize) {
return (bsize == BLOCK_16X16 || bsize == BLOCK_32X32);
}
#if !CONFIG_REALTIME_ONLY
static AOM_INLINE const FIRSTPASS_STATS *read_one_frame_stats(const TWO_PASS *p,
int frm) {
assert(frm >= 0);
if (frm < 0 ||
p->stats_buf_ctx->stats_in_start + frm > p->stats_buf_ctx->stats_in_end) {
return NULL;
}
return &p->stats_buf_ctx->stats_in_start[frm];
}
int av1_get_rdmult_delta(AV1_COMP *cpi, BLOCK_SIZE bsize, int mi_row,
int mi_col, int orig_rdmult);
int av1_active_h_edge(const AV1_COMP *cpi, int mi_row, int mi_step);
int av1_active_v_edge(const AV1_COMP *cpi, int mi_col, int mi_step);
void av1_get_tpl_stats_sb(AV1_COMP *cpi, BLOCK_SIZE bsize, int mi_row,
int mi_col, SuperBlockEnc *sb_enc);
int av1_get_q_for_deltaq_objective(AV1_COMP *const cpi, ThreadData *td,
int64_t *delta_dist, BLOCK_SIZE bsize,
int mi_row, int mi_col);
int av1_get_q_for_hdr(AV1_COMP *const cpi, MACROBLOCK *const x,
BLOCK_SIZE bsize, int mi_row, int mi_col);
int av1_get_cb_rdmult(const AV1_COMP *const cpi, MACROBLOCK *const x,
const BLOCK_SIZE bsize, const int mi_row,
const int mi_col);
int av1_get_hier_tpl_rdmult(const AV1_COMP *const cpi, MACROBLOCK *const x,
const BLOCK_SIZE bsize, const int mi_row,
const int mi_col, int orig_rdmult);
#endif // !CONFIG_REALTIME_ONLY
void av1_set_ssim_rdmult(const AV1_COMP *const cpi, int *errorperbit,
const BLOCK_SIZE bsize, const int mi_row,
const int mi_col, int *const rdmult);
#if CONFIG_SALIENCY_MAP
void av1_set_saliency_map_vmaf_rdmult(const AV1_COMP *const cpi,
int *errorperbit, const BLOCK_SIZE bsize,
const int mi_row, const int mi_col,
int *const rdmult);
#endif
void av1_update_state(const AV1_COMP *const cpi, ThreadData *td,
const PICK_MODE_CONTEXT *const ctx, int mi_row,
int mi_col, BLOCK_SIZE bsize, RUN_TYPE dry_run);
void av1_update_inter_mode_stats(FRAME_CONTEXT *fc, FRAME_COUNTS *counts,
PREDICTION_MODE mode, int16_t mode_context);
void av1_sum_intra_stats(const AV1_COMMON *const cm, FRAME_COUNTS *counts,
MACROBLOCKD *xd, const MB_MODE_INFO *const mbmi,
const MB_MODE_INFO *above_mi,
const MB_MODE_INFO *left_mi, const int intraonly);
void av1_restore_context(MACROBLOCK *x, const RD_SEARCH_MACROBLOCK_CONTEXT *ctx,
int mi_row, int mi_col, BLOCK_SIZE bsize,
const int num_planes);
void av1_save_context(const MACROBLOCK *x, RD_SEARCH_MACROBLOCK_CONTEXT *ctx,
int mi_row, int mi_col, BLOCK_SIZE bsize,
const int num_planes);
void av1_set_fixed_partitioning(AV1_COMP *cpi, const TileInfo *const tile,
MB_MODE_INFO **mib, int mi_row, int mi_col,
BLOCK_SIZE bsize);
int av1_is_leaf_split_partition(AV1_COMMON *cm, int mi_row, int mi_col,
BLOCK_SIZE bsize);
void av1_reset_simple_motion_tree_partition(SIMPLE_MOTION_DATA_TREE *sms_tree,
BLOCK_SIZE bsize);
void av1_update_picked_ref_frames_mask(MACROBLOCK *const x, int ref_type,
BLOCK_SIZE bsize, int mib_size,
int mi_row, int mi_col);
void av1_avg_cdf_symbols(FRAME_CONTEXT *ctx_left, FRAME_CONTEXT *ctx_tr,
int wt_left, int wt_tr);
void av1_source_content_sb(AV1_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data,
int mi_row, int mi_col);
void av1_reset_mbmi(CommonModeInfoParams *const mi_params, BLOCK_SIZE sb_size,
int mi_row, int mi_col);
void av1_backup_sb_state(SB_FIRST_PASS_STATS *sb_fp_stats, const AV1_COMP *cpi,
ThreadData *td, const TileDataEnc *tile_data,
int mi_row, int mi_col);
void av1_restore_sb_state(const SB_FIRST_PASS_STATS *sb_fp_stats, AV1_COMP *cpi,
ThreadData *td, TileDataEnc *tile_data, int mi_row,
int mi_col);
void av1_set_cost_upd_freq(AV1_COMP *cpi, ThreadData *td,
const TileInfo *const tile_info, const int mi_row,
const int mi_col);
static AOM_INLINE void av1_dealloc_mb_data(struct AV1Common *cm,
struct macroblock *mb) {
aom_free(mb->txfm_search_info.mb_rd_record);
mb->txfm_search_info.mb_rd_record = NULL;
aom_free(mb->inter_modes_info);
mb->inter_modes_info = NULL;
const int num_planes = av1_num_planes(cm);
for (int plane = 0; plane < num_planes; plane++) {
aom_free(mb->plane[plane].src_diff);
mb->plane[plane].src_diff = NULL;
}
aom_free(mb->e_mbd.seg_mask);
mb->e_mbd.seg_mask = NULL;
aom_free(mb->winner_mode_stats);
mb->winner_mode_stats = NULL;
}
static AOM_INLINE void allocate_winner_mode_stats(const AV1_COMP *cpi,
struct macroblock *mb) {
const SPEED_FEATURES *sf = &cpi->sf;
// The winner_mode_stats buffer is not required in these cases.
if (is_stat_generation_stage(cpi) ||
(sf->rt_sf.use_nonrd_pick_mode && !sf->rt_sf.hybrid_intra_pickmode) ||
(sf->winner_mode_sf.multi_winner_mode_type == MULTI_WINNER_MODE_OFF))
return;
const AV1_COMMON *cm = &cpi->common;
const int winner_mode_count =
winner_mode_count_allowed[sf->winner_mode_sf.multi_winner_mode_type];
CHECK_MEM_ERROR(cm, mb->winner_mode_stats,
(WinnerModeStats *)aom_malloc(
winner_mode_count * sizeof(mb->winner_mode_stats[0])));
}
static AOM_INLINE void av1_alloc_mb_data(const AV1_COMP *cpi,
struct macroblock *mb) {
const AV1_COMMON *cm = &cpi->common;
const SPEED_FEATURES *sf = &cpi->sf;
if (!sf->rt_sf.use_nonrd_pick_mode) {
// Memory for mb_rd_record is allocated only when use_mb_rd_hash sf is
// enabled.
if (sf->rd_sf.use_mb_rd_hash)
CHECK_MEM_ERROR(cm, mb->txfm_search_info.mb_rd_record,
(MB_RD_RECORD *)aom_malloc(sizeof(MB_RD_RECORD)));
if (!frame_is_intra_only(cm))
CHECK_MEM_ERROR(
cm, mb->inter_modes_info,
(InterModesInfo *)aom_malloc(sizeof(*mb->inter_modes_info)));
}
const int num_planes = av1_num_planes(cm);
for (int plane = 0; plane < num_planes; plane++) {
const int subsampling_xy =
plane ? cm->seq_params->subsampling_x + cm->seq_params->subsampling_y
: 0;
const int sb_size = MAX_SB_SQUARE >> subsampling_xy;
CHECK_MEM_ERROR(cm, mb->plane[plane].src_diff,
(int16_t *)aom_memalign(
32, sizeof(*mb->plane[plane].src_diff) * sb_size));
}
CHECK_MEM_ERROR(cm, mb->e_mbd.seg_mask,
(uint8_t *)aom_memalign(
16, 2 * MAX_SB_SQUARE * sizeof(mb->e_mbd.seg_mask[0])));
allocate_winner_mode_stats(cpi, mb);
}
// This function will compute the number of reference frames to be disabled
// based on selective_ref_frame speed feature.
static AOM_INLINE unsigned int get_num_refs_to_disable(
const AV1_COMP *cpi, const int *ref_frame_flags,
const unsigned int *ref_display_order_hint,
unsigned int cur_frame_display_index) {
unsigned int num_refs_to_disable = 0;
if (cpi->sf.inter_sf.selective_ref_frame >= 3) {
num_refs_to_disable++;
if (cpi->sf.inter_sf.selective_ref_frame >= 6) {
// Disable LAST2_FRAME and ALTREF2_FRAME
num_refs_to_disable += 2;
} else if (cpi->sf.inter_sf.selective_ref_frame == 5 &&
*ref_frame_flags & av1_ref_frame_flag_list[LAST2_FRAME]) {
const int last2_frame_dist = av1_encoder_get_relative_dist(
ref_display_order_hint[LAST2_FRAME - LAST_FRAME],
cur_frame_display_index);
// Disable LAST2_FRAME if it is a temporally distant frame
if (abs(last2_frame_dist) > 2) {
num_refs_to_disable++;
}
#if !CONFIG_REALTIME_ONLY
else if (is_stat_consumption_stage_twopass(cpi)) {
const FIRSTPASS_STATS *const this_frame_stats =
read_one_frame_stats(&cpi->ppi->twopass, cur_frame_display_index);
const double coded_error_per_mb = this_frame_stats->coded_error;
// Disable LAST2_FRAME if the coded error of the current frame based on
// first pass stats is very low.
if (coded_error_per_mb < 100.0) num_refs_to_disable++;
}
#endif // CONFIG_REALTIME_ONLY
}
}
return num_refs_to_disable;
}
static INLINE int get_max_allowed_ref_frames(
const AV1_COMP *cpi, const int *ref_frame_flags,
const unsigned int *ref_display_order_hint,
unsigned int cur_frame_display_index) {
const unsigned int max_reference_frames =
cpi->oxcf.ref_frm_cfg.max_reference_frames;
const unsigned int num_refs_to_disable = get_num_refs_to_disable(
cpi, ref_frame_flags, ref_display_order_hint, cur_frame_display_index);
const unsigned int max_allowed_refs_for_given_speed =
INTER_REFS_PER_FRAME - num_refs_to_disable;
return AOMMIN(max_allowed_refs_for_given_speed, max_reference_frames);
}
// Enforce the number of references for each arbitrary frame based on user
// options and speed.
static AOM_INLINE void enforce_max_ref_frames(
AV1_COMP *cpi, int *ref_frame_flags,
const unsigned int *ref_display_order_hint,
unsigned int cur_frame_display_index) {
MV_REFERENCE_FRAME ref_frame;
int total_valid_refs = 0;
for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
if (*ref_frame_flags & av1_ref_frame_flag_list[ref_frame]) {
total_valid_refs++;
}
}
const int max_allowed_refs = get_max_allowed_ref_frames(
cpi, ref_frame_flags, ref_display_order_hint, cur_frame_display_index);
for (int i = 0; i < 4 && total_valid_refs > max_allowed_refs; ++i) {
const MV_REFERENCE_FRAME ref_frame_to_disable = disable_order[i];
if (!(*ref_frame_flags & av1_ref_frame_flag_list[ref_frame_to_disable])) {
continue;
}
switch (ref_frame_to_disable) {
case LAST3_FRAME: *ref_frame_flags &= ~AOM_LAST3_FLAG; break;
case LAST2_FRAME: *ref_frame_flags &= ~AOM_LAST2_FLAG; break;
case ALTREF2_FRAME: *ref_frame_flags &= ~AOM_ALT2_FLAG; break;
case BWDREF_FRAME: *ref_frame_flags &= ~AOM_GOLD_FLAG; break;
default: assert(0);
}
--total_valid_refs;
}
assert(total_valid_refs <= max_allowed_refs);
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AV1_ENCODER_ENCODEFRAME_UTILS_H_