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aomedia/aom/e4050c22298fa36d6589969f497f8f04d89e5aa5/./av1/encoder/ethread.c
blob: baf9c590b311d9a07ab22162bec4f3b2cbd86605 [file]
/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include "av1/common/warped_motion.h"
#include "av1/encoder/bitstream.h"
#include "av1/encoder/encodeframe.h"
#include "av1/encoder/encoder.h"
#include "av1/encoder/encoder_alloc.h"
#include "av1/encoder/encodeframe_utils.h"
#include "av1/encoder/ethread.h"
#if !CONFIG_REALTIME_ONLY
#include "av1/encoder/firstpass.h"
#endif
#include "av1/encoder/global_motion.h"
#include "av1/encoder/global_motion_facade.h"
#include "av1/encoder/rdopt.h"
#include "aom_dsp/aom_dsp_common.h"
#include "av1/encoder/temporal_filter.h"
#include "av1/encoder/tpl_model.h"
static AOM_INLINE void accumulate_rd_opt(ThreadData *td, ThreadData *td_t) {
for (int i = 0; i < REFERENCE_MODES; i++)
td->rd_counts.comp_pred_diff[i] += td_t->rd_counts.comp_pred_diff[i];
td->rd_counts.compound_ref_used_flag |=
td_t->rd_counts.compound_ref_used_flag;
td->rd_counts.skip_mode_used_flag |= td_t->rd_counts.skip_mode_used_flag;
for (int i = 0; i < TX_SIZES_ALL; i++) {
for (int j = 0; j < TX_TYPES; j++)
td->rd_counts.tx_type_used[i][j] += td_t->rd_counts.tx_type_used[i][j];
}
for (int i = 0; i < BLOCK_SIZES_ALL; i++) {
for (int j = 0; j < 2; j++) {
td->rd_counts.obmc_used[i][j] += td_t->rd_counts.obmc_used[i][j];
}
}
for (int i = 0; i < 2; i++) {
td->rd_counts.warped_used[i] += td_t->rd_counts.warped_used[i];
}
}
static AOM_INLINE void update_delta_lf_for_row_mt(AV1_COMP *cpi) {
AV1_COMMON *cm = &cpi->common;
MACROBLOCKD *xd = &cpi->td.mb.e_mbd;
const int mib_size = cm->seq_params->mib_size;
const int frame_lf_count =
av1_num_planes(cm) > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2;
for (int row = 0; row < cm->tiles.rows; row++) {
for (int col = 0; col < cm->tiles.cols; col++) {
TileDataEnc *tile_data = &cpi->tile_data[row * cm->tiles.cols + col];
const TileInfo *const tile_info = &tile_data->tile_info;
for (int mi_row = tile_info->mi_row_start; mi_row < tile_info->mi_row_end;
mi_row += mib_size) {
if (mi_row == tile_info->mi_row_start)
av1_reset_loop_filter_delta(xd, av1_num_planes(cm));
for (int mi_col = tile_info->mi_col_start;
mi_col < tile_info->mi_col_end; mi_col += mib_size) {
const int idx_str = cm->mi_params.mi_stride * mi_row + mi_col;
MB_MODE_INFO **mi = cm->mi_params.mi_grid_base + idx_str;
MB_MODE_INFO *mbmi = mi[0];
if (mbmi->skip_txfm == 1 &&
(mbmi->bsize == cm->seq_params->sb_size)) {
for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id)
mbmi->delta_lf[lf_id] = xd->delta_lf[lf_id];
mbmi->delta_lf_from_base = xd->delta_lf_from_base;
} else {
if (cm->delta_q_info.delta_lf_multi) {
for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id)
xd->delta_lf[lf_id] = mbmi->delta_lf[lf_id];
} else {
xd->delta_lf_from_base = mbmi->delta_lf_from_base;
}
}
}
}
}
}
}
void av1_row_mt_sync_read_dummy(AV1EncRowMultiThreadSync *row_mt_sync, int r,
int c) {
(void)row_mt_sync;
(void)r;
(void)c;
return;
}
void av1_row_mt_sync_write_dummy(AV1EncRowMultiThreadSync *row_mt_sync, int r,
int c, int cols) {
(void)row_mt_sync;
(void)r;
(void)c;
(void)cols;
return;
}
void av1_row_mt_sync_read(AV1EncRowMultiThreadSync *row_mt_sync, int r, int c) {
#if CONFIG_MULTITHREAD
const int nsync = row_mt_sync->sync_range;
if (r) {
pthread_mutex_t *const mutex = &row_mt_sync->mutex_[r - 1];
pthread_mutex_lock(mutex);
while (c > row_mt_sync->num_finished_cols[r - 1] - nsync) {
pthread_cond_wait(&row_mt_sync->cond_[r - 1], mutex);
}
pthread_mutex_unlock(mutex);
}
#else
(void)row_mt_sync;
(void)r;
(void)c;
#endif // CONFIG_MULTITHREAD
}
void av1_row_mt_sync_write(AV1EncRowMultiThreadSync *row_mt_sync, int r, int c,
int cols) {
#if CONFIG_MULTITHREAD
const int nsync = row_mt_sync->sync_range;
int cur;
// Only signal when there are enough encoded blocks for next row to run.
int sig = 1;
if (c < cols - 1) {
cur = c;
if (c % nsync) sig = 0;
} else {
cur = cols + nsync;
}
if (sig) {
pthread_mutex_lock(&row_mt_sync->mutex_[r]);
row_mt_sync->num_finished_cols[r] = cur;
pthread_cond_signal(&row_mt_sync->cond_[r]);
pthread_mutex_unlock(&row_mt_sync->mutex_[r]);
}
#else
(void)row_mt_sync;
(void)r;
(void)c;
(void)cols;
#endif // CONFIG_MULTITHREAD
}
// Allocate memory for row synchronization
static void row_mt_sync_mem_alloc(AV1EncRowMultiThreadSync *row_mt_sync,
AV1_COMMON *cm, int rows) {
#if CONFIG_MULTITHREAD
int i;
CHECK_MEM_ERROR(cm, row_mt_sync->mutex_,
aom_malloc(sizeof(*row_mt_sync->mutex_) * rows));
if (row_mt_sync->mutex_) {
for (i = 0; i < rows; ++i) {
pthread_mutex_init(&row_mt_sync->mutex_[i], NULL);
}
}
CHECK_MEM_ERROR(cm, row_mt_sync->cond_,
aom_malloc(sizeof(*row_mt_sync->cond_) * rows));
if (row_mt_sync->cond_) {
for (i = 0; i < rows; ++i) {
pthread_cond_init(&row_mt_sync->cond_[i], NULL);
}
}
#endif // CONFIG_MULTITHREAD
CHECK_MEM_ERROR(cm, row_mt_sync->num_finished_cols,
aom_malloc(sizeof(*row_mt_sync->num_finished_cols) * rows));
row_mt_sync->rows = rows;
// Set up nsync.
row_mt_sync->sync_range = 1;
}
// Deallocate row based multi-threading synchronization related mutex and data
static void row_mt_sync_mem_dealloc(AV1EncRowMultiThreadSync *row_mt_sync) {
if (row_mt_sync != NULL) {
#if CONFIG_MULTITHREAD
int i;
if (row_mt_sync->mutex_ != NULL) {
for (i = 0; i < row_mt_sync->rows; ++i) {
pthread_mutex_destroy(&row_mt_sync->mutex_[i]);
}
aom_free(row_mt_sync->mutex_);
}
if (row_mt_sync->cond_ != NULL) {
for (i = 0; i < row_mt_sync->rows; ++i) {
pthread_cond_destroy(&row_mt_sync->cond_[i]);
}
aom_free(row_mt_sync->cond_);
}
#endif // CONFIG_MULTITHREAD
aom_free(row_mt_sync->num_finished_cols);
// clear the structure as the source of this call may be dynamic change
// in tiles in which case this call will be followed by an _alloc()
// which may fail.
av1_zero(*row_mt_sync);
}
}
static void row_mt_mem_alloc(AV1_COMP *cpi, int max_rows, int max_cols,
int alloc_row_ctx) {
struct AV1Common *cm = &cpi->common;
AV1EncRowMultiThreadInfo *const enc_row_mt = &cpi->mt_info.enc_row_mt;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int tile_col, tile_row;
// Allocate memory for row based multi-threading
for (tile_row = 0; tile_row < tile_rows; tile_row++) {
for (tile_col = 0; tile_col < tile_cols; tile_col++) {
int tile_index = tile_row * tile_cols + tile_col;
TileDataEnc *const this_tile = &cpi->tile_data[tile_index];
row_mt_sync_mem_alloc(&this_tile->row_mt_sync, cm, max_rows);
this_tile->row_ctx = NULL;
if (alloc_row_ctx) {
assert(max_cols > 0);
const int num_row_ctx = AOMMAX(1, (max_cols - 1));
CHECK_MEM_ERROR(cm, this_tile->row_ctx,
(FRAME_CONTEXT *)aom_memalign(
16, num_row_ctx * sizeof(*this_tile->row_ctx)));
}
}
}
enc_row_mt->allocated_tile_cols = tile_cols;
enc_row_mt->allocated_tile_rows = tile_rows;
enc_row_mt->allocated_rows = max_rows;
enc_row_mt->allocated_cols = max_cols - 1;
}
void av1_row_mt_mem_dealloc(AV1_COMP *cpi) {
AV1EncRowMultiThreadInfo *const enc_row_mt = &cpi->mt_info.enc_row_mt;
const int tile_cols = enc_row_mt->allocated_tile_cols;
const int tile_rows = enc_row_mt->allocated_tile_rows;
int tile_col, tile_row;
// Free row based multi-threading sync memory
for (tile_row = 0; tile_row < tile_rows; tile_row++) {
for (tile_col = 0; tile_col < tile_cols; tile_col++) {
int tile_index = tile_row * tile_cols + tile_col;
TileDataEnc *const this_tile = &cpi->tile_data[tile_index];
row_mt_sync_mem_dealloc(&this_tile->row_mt_sync);
if (cpi->oxcf.algo_cfg.cdf_update_mode) aom_free(this_tile->row_ctx);
}
}
enc_row_mt->allocated_rows = 0;
enc_row_mt->allocated_cols = 0;
enc_row_mt->allocated_tile_cols = 0;
enc_row_mt->allocated_tile_rows = 0;
}
static AOM_INLINE void assign_tile_to_thread(int *thread_id_to_tile_id,
int num_tiles, int num_workers) {
int tile_id = 0;
int i;
for (i = 0; i < num_workers; i++) {
thread_id_to_tile_id[i] = tile_id++;
if (tile_id == num_tiles) tile_id = 0;
}
}
static AOM_INLINE int get_next_job(TileDataEnc *const tile_data,
int *current_mi_row, int mib_size) {
AV1EncRowMultiThreadSync *const row_mt_sync = &tile_data->row_mt_sync;
const int mi_row_end = tile_data->tile_info.mi_row_end;
if (row_mt_sync->next_mi_row < mi_row_end) {
*current_mi_row = row_mt_sync->next_mi_row;
row_mt_sync->num_threads_working++;
row_mt_sync->next_mi_row += mib_size;
return 1;
}
return 0;
}
static AOM_INLINE void switch_tile_and_get_next_job(
AV1_COMMON *const cm, TileDataEnc *const tile_data, int *cur_tile_id,
int *current_mi_row, int *end_of_frame, int is_firstpass,
const BLOCK_SIZE fp_block_size) {
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int tile_id = -1; // Stores the tile ID with minimum proc done
int max_mis_to_encode = 0;
int min_num_threads_working = INT_MAX;
for (int tile_row = 0; tile_row < tile_rows; tile_row++) {
for (int tile_col = 0; tile_col < tile_cols; tile_col++) {
int tile_index = tile_row * tile_cols + tile_col;
TileDataEnc *const this_tile = &tile_data[tile_index];
AV1EncRowMultiThreadSync *const row_mt_sync = &this_tile->row_mt_sync;
#if CONFIG_REALTIME_ONLY
int num_b_rows_in_tile =
av1_get_sb_rows_in_tile(cm, this_tile->tile_info);
int num_b_cols_in_tile =
av1_get_sb_cols_in_tile(cm, this_tile->tile_info);
#else
int num_b_rows_in_tile =
is_firstpass
? av1_get_unit_rows_in_tile(this_tile->tile_info, fp_block_size)
: av1_get_sb_rows_in_tile(cm, this_tile->tile_info);
int num_b_cols_in_tile =
is_firstpass
? av1_get_unit_cols_in_tile(this_tile->tile_info, fp_block_size)
: av1_get_sb_cols_in_tile(cm, this_tile->tile_info);
#endif
int theoretical_limit_on_threads =
AOMMIN((num_b_cols_in_tile + 1) >> 1, num_b_rows_in_tile);
int num_threads_working = row_mt_sync->num_threads_working;
if (num_threads_working < theoretical_limit_on_threads) {
int num_mis_to_encode =
this_tile->tile_info.mi_row_end - row_mt_sync->next_mi_row;
// Tile to be processed by this thread is selected on the basis of
// availability of jobs:
// 1) If jobs are available, tile to be processed is chosen on the
// basis of minimum number of threads working for that tile. If two or
// more tiles have same number of threads working for them, then the
// tile with maximum number of jobs available will be chosen.
// 2) If no jobs are available, then end_of_frame is reached.
if (num_mis_to_encode > 0) {
if (num_threads_working < min_num_threads_working) {
min_num_threads_working = num_threads_working;
max_mis_to_encode = 0;
}
if (num_threads_working == min_num_threads_working &&
num_mis_to_encode > max_mis_to_encode) {
tile_id = tile_index;
max_mis_to_encode = num_mis_to_encode;
}
}
}
}
}
if (tile_id == -1) {
*end_of_frame = 1;
} else {
// Update the current tile id to the tile id that will be processed next,
// which will be the least processed tile.
*cur_tile_id = tile_id;
const int unit_height = mi_size_high[fp_block_size];
get_next_job(&tile_data[tile_id], current_mi_row,
is_firstpass ? unit_height : cm->seq_params->mib_size);
}
}
#if !CONFIG_REALTIME_ONLY
static int fp_enc_row_mt_worker_hook(void *arg1, void *unused) {
EncWorkerData *const thread_data = (EncWorkerData *)arg1;
AV1_COMP *const cpi = thread_data->cpi;
AV1_COMMON *const cm = &cpi->common;
int thread_id = thread_data->thread_id;
AV1EncRowMultiThreadInfo *const enc_row_mt = &cpi->mt_info.enc_row_mt;
int cur_tile_id = enc_row_mt->thread_id_to_tile_id[thread_id];
#if CONFIG_MULTITHREAD
pthread_mutex_t *enc_row_mt_mutex_ = enc_row_mt->mutex_;
#endif
(void)unused;
assert(cur_tile_id != -1);
const BLOCK_SIZE fp_block_size = cpi->fp_block_size;
const int unit_height = mi_size_high[fp_block_size];
int end_of_frame = 0;
while (1) {
int current_mi_row = -1;
#if CONFIG_MULTITHREAD
pthread_mutex_lock(enc_row_mt_mutex_);
#endif
if (!get_next_job(&cpi->tile_data[cur_tile_id], &current_mi_row,
unit_height)) {
// No jobs are available for the current tile. Query for the status of
// other tiles and get the next job if available
switch_tile_and_get_next_job(cm, cpi->tile_data, &cur_tile_id,
&current_mi_row, &end_of_frame, 1,
fp_block_size);
}
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(enc_row_mt_mutex_);
#endif
if (end_of_frame == 1) break;
TileDataEnc *const this_tile = &cpi->tile_data[cur_tile_id];
AV1EncRowMultiThreadSync *const row_mt_sync = &this_tile->row_mt_sync;
ThreadData *td = thread_data->td;
assert(current_mi_row != -1 &&
current_mi_row <= this_tile->tile_info.mi_row_end);
const int unit_height_log2 = mi_size_high_log2[fp_block_size];
av1_first_pass_row(cpi, td, this_tile, current_mi_row >> unit_height_log2,
fp_block_size);
#if CONFIG_MULTITHREAD
pthread_mutex_lock(enc_row_mt_mutex_);
#endif
row_mt_sync->num_threads_working--;
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(enc_row_mt_mutex_);
#endif
}
return 1;
}
#endif
static int enc_row_mt_worker_hook(void *arg1, void *unused) {
EncWorkerData *const thread_data = (EncWorkerData *)arg1;
AV1_COMP *const cpi = thread_data->cpi;
AV1_COMMON *const cm = &cpi->common;
int thread_id = thread_data->thread_id;
AV1EncRowMultiThreadInfo *const enc_row_mt = &cpi->mt_info.enc_row_mt;
int cur_tile_id = enc_row_mt->thread_id_to_tile_id[thread_id];
#if CONFIG_MULTITHREAD
pthread_mutex_t *enc_row_mt_mutex_ = enc_row_mt->mutex_;
#endif
(void)unused;
assert(cur_tile_id != -1);
const BLOCK_SIZE fp_block_size = cpi->fp_block_size;
int end_of_frame = 0;
// When master thread does not have a valid job to process, xd->tile_ctx
// is not set and it contains NULL pointer. This can result in NULL pointer
// access violation if accessed beyond the encode stage. Hence, updating
// thread_data->td->mb.e_mbd.tile_ctx is initialized with common frame
// context to avoid NULL pointer access in subsequent stages.
thread_data->td->mb.e_mbd.tile_ctx = cm->fc;
while (1) {
int current_mi_row = -1;
#if CONFIG_MULTITHREAD
pthread_mutex_lock(enc_row_mt_mutex_);
#endif
if (!get_next_job(&cpi->tile_data[cur_tile_id], &current_mi_row,
cm->seq_params->mib_size)) {
// No jobs are available for the current tile. Query for the status of
// other tiles and get the next job if available
switch_tile_and_get_next_job(cm, cpi->tile_data, &cur_tile_id,
&current_mi_row, &end_of_frame, 0,
fp_block_size);
}
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(enc_row_mt_mutex_);
#endif
if (end_of_frame == 1) break;
TileDataEnc *const this_tile = &cpi->tile_data[cur_tile_id];
AV1EncRowMultiThreadSync *const row_mt_sync = &this_tile->row_mt_sync;
const TileInfo *const tile_info = &this_tile->tile_info;
const int tile_row = tile_info->tile_row;
const int tile_col = tile_info->tile_col;
ThreadData *td = thread_data->td;
assert(current_mi_row != -1 && current_mi_row <= tile_info->mi_row_end);
td->mb.e_mbd.tile_ctx = td->tctx;
td->mb.tile_pb_ctx = &this_tile->tctx;
td->abs_sum_level = 0;
if (this_tile->allow_update_cdf) {
td->mb.row_ctx = this_tile->row_ctx;
if (current_mi_row == tile_info->mi_row_start)
memcpy(td->mb.e_mbd.tile_ctx, &this_tile->tctx, sizeof(FRAME_CONTEXT));
} else {
memcpy(td->mb.e_mbd.tile_ctx, &this_tile->tctx, sizeof(FRAME_CONTEXT));
}
av1_init_above_context(&cm->above_contexts, av1_num_planes(cm), tile_row,
&td->mb.e_mbd);
cfl_init(&td->mb.e_mbd.cfl, cm->seq_params);
if (td->mb.txfm_search_info.txb_rd_records != NULL) {
av1_crc32c_calculator_init(
&td->mb.txfm_search_info.txb_rd_records->mb_rd_record.crc_calculator);
}
av1_encode_sb_row(cpi, td, tile_row, tile_col, current_mi_row);
#if CONFIG_MULTITHREAD
pthread_mutex_lock(enc_row_mt_mutex_);
#endif
this_tile->abs_sum_level += td->abs_sum_level;
row_mt_sync->num_threads_working--;
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(enc_row_mt_mutex_);
#endif
}
return 1;
}
static int enc_worker_hook(void *arg1, void *unused) {
EncWorkerData *const thread_data = (EncWorkerData *)arg1;
AV1_COMP *const cpi = thread_data->cpi;
const AV1_COMMON *const cm = &cpi->common;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int t;
(void)unused;
for (t = thread_data->start; t < tile_rows * tile_cols;
t += cpi->mt_info.num_workers) {
int tile_row = t / tile_cols;
int tile_col = t % tile_cols;
TileDataEnc *const this_tile =
&cpi->tile_data[tile_row * cm->tiles.cols + tile_col];
thread_data->td->mb.e_mbd.tile_ctx = &this_tile->tctx;
thread_data->td->mb.tile_pb_ctx = &this_tile->tctx;
av1_encode_tile(cpi, thread_data->td, tile_row, tile_col);
}
return 1;
}
void av1_init_frame_mt(AV1_PRIMARY *ppi, AV1_COMP *cpi) {
cpi->mt_info.workers = ppi->p_mt_info.workers;
cpi->mt_info.num_workers = ppi->p_mt_info.num_workers;
cpi->mt_info.tile_thr_data = ppi->p_mt_info.tile_thr_data;
int i;
for (i = MOD_FP; i < NUM_MT_MODULES; i++) {
cpi->mt_info.num_mod_workers[i] =
AOMMIN(cpi->mt_info.num_workers, ppi->p_mt_info.num_mod_workers[i]);
}
}
#if CONFIG_MULTITHREAD
void av1_init_mt_sync(AV1_COMP *cpi, int is_first_pass) {
AV1_COMMON *const cm = &cpi->common;
MultiThreadInfo *const mt_info = &cpi->mt_info;
if (is_first_pass || cpi->oxcf.row_mt == 1) {
AV1EncRowMultiThreadInfo *enc_row_mt = &mt_info->enc_row_mt;
if (enc_row_mt->mutex_ == NULL) {
CHECK_MEM_ERROR(cm, enc_row_mt->mutex_,
aom_malloc(sizeof(*(enc_row_mt->mutex_))));
if (enc_row_mt->mutex_) pthread_mutex_init(enc_row_mt->mutex_, NULL);
}
}
if (!is_first_pass) {
AV1GlobalMotionSync *gm_sync = &mt_info->gm_sync;
if (gm_sync->mutex_ == NULL) {
CHECK_MEM_ERROR(cm, gm_sync->mutex_,
aom_malloc(sizeof(*(gm_sync->mutex_))));
if (gm_sync->mutex_) pthread_mutex_init(gm_sync->mutex_, NULL);
}
#if !CONFIG_REALTIME_ONLY
AV1TemporalFilterSync *tf_sync = &mt_info->tf_sync;
if (tf_sync->mutex_ == NULL) {
CHECK_MEM_ERROR(cm, tf_sync->mutex_,
aom_malloc(sizeof(*tf_sync->mutex_)));
if (tf_sync->mutex_) pthread_mutex_init(tf_sync->mutex_, NULL);
}
#endif // !CONFIG_REALTIME_ONLY
AV1CdefSync *cdef_sync = &mt_info->cdef_sync;
if (cdef_sync->mutex_ == NULL) {
CHECK_MEM_ERROR(cm, cdef_sync->mutex_,
aom_malloc(sizeof(*(cdef_sync->mutex_))));
if (cdef_sync->mutex_) pthread_mutex_init(cdef_sync->mutex_, NULL);
}
}
}
#endif // CONFIG_MULTITHREAD
void av1_init_tile_thread_data(AV1_PRIMARY *ppi, int is_first_pass) {
PrimaryMultiThreadInfo *const p_mt_info = &ppi->p_mt_info;
assert(p_mt_info->workers != NULL);
assert(p_mt_info->tile_thr_data != NULL);
int num_workers = p_mt_info->num_workers;
int num_enc_workers = p_mt_info->num_mod_workers[MOD_ENC];
if (p_mt_info->num_mod_workers[MOD_FRAME_ENC] > 1) {
// TODO(anyone): Change num_enc_workers to num_mod_workers[MOD_FRAME_ENC].
// As frame parallel jobs will only perform multi-threading for the encode
// stage, we can limit the allocations according to num_enc_workers per
// frame parallel encode(a.k.a num_mod_workers[MOD_FRAME_ENC]).
num_enc_workers = num_workers;
}
for (int i = num_workers - 1; i >= 0; i--) {
EncWorkerData *const thread_data = &p_mt_info->tile_thr_data[i];
if (i > 0) {
// Allocate thread data.
AOM_CHECK_MEM_ERROR(&ppi->error, thread_data->td,
aom_memalign(32, sizeof(*thread_data->td)));
av1_zero(*thread_data->td);
#if CONFIG_FRAME_PARALLEL_ENCODE
thread_data->original_td = thread_data->td;
#endif
// Set up shared coeff buffers.
av1_setup_shared_coeff_buffer(
&ppi->error, &thread_data->td->shared_coeff_buf, &ppi->seq_params,
av1_num_planes(&ppi->cpi->common));
AOM_CHECK_MEM_ERROR(
&ppi->error, thread_data->td->tmp_conv_dst,
aom_memalign(32, MAX_SB_SIZE * MAX_SB_SIZE *
sizeof(*thread_data->td->tmp_conv_dst)));
if (i < p_mt_info->num_mod_workers[MOD_FP]) {
// Set up firstpass PICK_MODE_CONTEXT.
thread_data->td->firstpass_ctx = av1_alloc_pmc(
ppi->cpi, BLOCK_16X16, &thread_data->td->shared_coeff_buf);
}
if (!is_first_pass && i < num_enc_workers) {
// Set up sms_tree.
av1_setup_sms_tree(ppi->cpi, thread_data->td);
alloc_obmc_buffers(&thread_data->td->obmc_buffer, &ppi->error);
AOM_CHECK_MEM_ERROR(&ppi->error, thread_data->td->inter_modes_info,
(InterModesInfo *)aom_malloc(
sizeof(*thread_data->td->inter_modes_info)));
for (int x = 0; x < 2; x++)
for (int y = 0; y < 2; y++)
AOM_CHECK_MEM_ERROR(
&ppi->error, thread_data->td->hash_value_buffer[x][y],
(uint32_t *)aom_malloc(
AOM_BUFFER_SIZE_FOR_BLOCK_HASH *
sizeof(*thread_data->td->hash_value_buffer[0][0])));
// Allocate frame counters in thread data.
AOM_CHECK_MEM_ERROR(&ppi->error, thread_data->td->counts,
aom_calloc(1, sizeof(*thread_data->td->counts)));
// Allocate buffers used by palette coding mode.
AOM_CHECK_MEM_ERROR(
&ppi->error, thread_data->td->palette_buffer,
aom_memalign(16, sizeof(*thread_data->td->palette_buffer)));
alloc_compound_type_rd_buffers(&ppi->error,
&thread_data->td->comp_rd_buffer);
for (int j = 0; j < 2; ++j) {
AOM_CHECK_MEM_ERROR(
&ppi->error, thread_data->td->tmp_pred_bufs[j],
aom_memalign(32, 2 * MAX_MB_PLANE * MAX_SB_SQUARE *
sizeof(*thread_data->td->tmp_pred_bufs[j])));
}
const int plane_types = PLANE_TYPES >> ppi->seq_params.monochrome;
AOM_CHECK_MEM_ERROR(
&ppi->error, thread_data->td->pixel_gradient_info,
aom_malloc(sizeof(*thread_data->td->pixel_gradient_info) *
plane_types * MAX_SB_SQUARE));
if (ppi->cpi->sf.part_sf.partition_search_type == VAR_BASED_PARTITION) {
const int num_64x64_blocks =
(ppi->seq_params.sb_size == BLOCK_64X64) ? 1 : 4;
AOM_CHECK_MEM_ERROR(
&ppi->error, thread_data->td->vt64x64,
aom_malloc(sizeof(*thread_data->td->vt64x64) * num_64x64_blocks));
}
}
}
if (!is_first_pass && ppi->cpi->oxcf.row_mt == 1 && i < num_enc_workers) {
if (i == 0) {
#if CONFIG_FRAME_PARALLEL_ENCODE
for (int j = 0; j < ppi->num_fp_contexts; j++) {
AOM_CHECK_MEM_ERROR(&ppi->error, ppi->parallel_cpi[j]->td.tctx,
(FRAME_CONTEXT *)aom_memalign(
16, sizeof(*ppi->parallel_cpi[j]->td.tctx)));
}
#else
AOM_CHECK_MEM_ERROR(
&ppi->error, ppi->cpi->td.tctx,
(FRAME_CONTEXT *)aom_memalign(16, sizeof(*ppi->cpi->td.tctx)));
#endif
} else {
AOM_CHECK_MEM_ERROR(
&ppi->error, thread_data->td->tctx,
(FRAME_CONTEXT *)aom_memalign(16, sizeof(*thread_data->td->tctx)));
}
}
}
}
void av1_create_workers(AV1_PRIMARY *ppi, int num_workers) {
PrimaryMultiThreadInfo *const p_mt_info = &ppi->p_mt_info;
const AVxWorkerInterface *const winterface = aom_get_worker_interface();
AOM_CHECK_MEM_ERROR(&ppi->error, p_mt_info->workers,
aom_malloc(num_workers * sizeof(*p_mt_info->workers)));
AOM_CHECK_MEM_ERROR(
&ppi->error, p_mt_info->tile_thr_data,
aom_calloc(num_workers, sizeof(*p_mt_info->tile_thr_data)));
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = &p_mt_info->workers[i];
EncWorkerData *const thread_data = &p_mt_info->tile_thr_data[i];
winterface->init(worker);
worker->thread_name = "aom enc worker";
thread_data->thread_id = i;
// Set the starting tile for each thread.
thread_data->start = i;
if (i > 0) {
// Create threads
if (!winterface->reset(worker))
aom_internal_error(&ppi->error, AOM_CODEC_ERROR,
"Tile encoder thread creation failed");
}
winterface->sync(worker);
++p_mt_info->num_workers;
}
}
#if CONFIG_FRAME_PARALLEL_ENCODE
// This function returns 1 if frame parallel encode is supported for
// the current configuration. Returns 0 otherwise.
static AOM_INLINE int is_fp_config(AV1_PRIMARY *ppi, AV1EncoderConfig *oxcf) {
// FPMT is enabled for AOM_Q and AOM_VBR.
// TODO(Mufaddal, Aasaipriya): Test and enable multi-tile and resize config.
if (oxcf->rc_cfg.mode == AOM_CBR || oxcf->rc_cfg.mode == AOM_CQ) {
return 0;
}
if (ppi->use_svc) {
return 0;
}
if (oxcf->tile_cfg.tile_columns > 0 || oxcf->tile_cfg.tile_rows > 0) {
return 0;
}
if (oxcf->dec_model_cfg.timing_info_present) {
return 0;
}
if (oxcf->mode != GOOD) {
return 0;
}
if (oxcf->tool_cfg.error_resilient_mode) {
return 0;
}
if (oxcf->resize_cfg.resize_mode) {
return 0;
}
if (oxcf->passes == 1) {
return 0;
}
return 1;
}
// Computes the number of frame parallel(fp) contexts to be created
// based on the number of max_enc_workers.
int av1_compute_num_fp_contexts(AV1_PRIMARY *ppi, AV1EncoderConfig *oxcf,
int max_num_enc_workers) {
ppi->p_mt_info.num_mod_workers[MOD_FRAME_ENC] = 0;
if (!is_fp_config(ppi, oxcf)) {
return 1;
}
// A parallel frame encode must have at least half the theoretical limit of
// max enc workers. TODO(Mufaddal) : Tune this value based on empirical
// analysis.
int workers_per_frame = (max_num_enc_workers + 1) / 2;
int max_threads = oxcf->max_threads;
int num_fp_contexts = max_threads / workers_per_frame;
num_fp_contexts = AOMMAX(1, AOMMIN(num_fp_contexts, MAX_PARALLEL_FRAMES));
// TODO(anyone): Test and enable for more than 2 frames in parallel.
num_fp_contexts = AOMMIN(num_fp_contexts, 2);
if (num_fp_contexts > 1) {
assert(max_threads >= 2);
ppi->p_mt_info.num_mod_workers[MOD_FRAME_ENC] =
AOMMIN(max_num_enc_workers * num_fp_contexts, oxcf->max_threads);
}
return num_fp_contexts;
}
// Prepare level 1 workers. This function is only called for
// parallel_frame_count > 1. This function populates the mt_info structure of
// frame level contexts appropriately by dividing the total number of available
// workers amongst the frames as level 2 workers. It also populates the hook and
// data members of level 1 workers.
static AOM_INLINE void prepare_fpmt_workers(AV1_PRIMARY *ppi,
AV1_COMP_DATA *first_cpi_data,
AVxWorkerHook hook,
int parallel_frame_count) {
assert(parallel_frame_count <= ppi->num_fp_contexts &&
parallel_frame_count > 1);
PrimaryMultiThreadInfo *const p_mt_info = &ppi->p_mt_info;
int num_workers = p_mt_info->num_workers;
// Number of level 2 workers per frame context (ceil division)
int workers_per_frame = (num_workers / parallel_frame_count) +
(num_workers % parallel_frame_count != 0);
int frame_idx = 0;
for (int i = 0; i < num_workers; i += workers_per_frame) {
// Assign level 1 worker
AVxWorker *frame_worker = p_mt_info->p_workers[frame_idx] =
&p_mt_info->workers[i];
// Assign start of level 2 worker pool
ppi->parallel_cpi[frame_idx]->mt_info.workers = &p_mt_info->workers[i];
ppi->parallel_cpi[frame_idx]->mt_info.tile_thr_data =
&p_mt_info->tile_thr_data[i];
ppi->parallel_cpi[frame_idx]->mt_info.num_workers =
AOMMIN(workers_per_frame, num_workers - i);
for (int j = MOD_FP; j < NUM_MT_MODULES; j++) {
ppi->parallel_cpi[frame_idx]->mt_info.num_mod_workers[j] =
AOMMIN(workers_per_frame, ppi->p_mt_info.num_mod_workers[j]);
}
frame_worker->hook = hook;
frame_worker->data1 = ppi->parallel_cpi[frame_idx];
frame_worker->data2 = (frame_idx == 0)
? first_cpi_data
: &ppi->parallel_frames_data[frame_idx - 1];
frame_idx++;
}
p_mt_info->p_num_workers = parallel_frame_count;
}
// Launch level 1 workers to perform frame parallel encode.
static AOM_INLINE void launch_fpmt_workers(AV1_PRIMARY *ppi) {
const AVxWorkerInterface *const winterface = aom_get_worker_interface();
int num_workers = ppi->p_mt_info.p_num_workers;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = ppi->p_mt_info.p_workers[i];
if (i == 0)
winterface->execute(worker);
else
winterface->launch(worker);
}
}
// Synchronize level 1 workers.
static AOM_INLINE void sync_fpmt_workers(AV1_PRIMARY *ppi) {
const AVxWorkerInterface *const winterface = aom_get_worker_interface();
int num_workers = ppi->p_mt_info.p_num_workers;
int had_error = 0;
// Points to error in the earliest display order frame in the parallel set.
const struct aom_internal_error_info *error;
// Encoding ends.
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = ppi->p_mt_info.p_workers[i];
if (!winterface->sync(worker)) {
had_error = 1;
error = ((AV1_COMP *)worker->data1)->common.error;
}
}
if (had_error)
aom_internal_error(&ppi->error, error->error_code, error->detail);
}
static int get_compressed_data_hook(void *arg1, void *arg2) {
AV1_COMP *cpi = (AV1_COMP *)arg1;
AV1_COMP_DATA *cpi_data = (AV1_COMP_DATA *)arg2;
int status = av1_get_compressed_data(cpi, cpi_data);
// AOM_CODEC_OK(0) means no error.
return !status;
}
// This function encodes the raw frame data for each frame in parallel encode
// set, and outputs the frame bit stream to the designated buffers.
int av1_compress_parallel_frames(AV1_PRIMARY *const ppi,
AV1_COMP_DATA *const first_cpi_data) {
// Bitmask for the frame buffers referenced by cpi->scaled_ref_buf
// corresponding to frames in the current parallel encode set.
int ref_buffers_used_map = 0;
int frames_in_parallel_set = av1_init_parallel_frame_context(
first_cpi_data, ppi, &ref_buffers_used_map);
prepare_fpmt_workers(ppi, first_cpi_data, get_compressed_data_hook,
frames_in_parallel_set);
launch_fpmt_workers(ppi);
sync_fpmt_workers(ppi);
// Release cpi->scaled_ref_buf corresponding to frames in the current parallel
// encode set.
for (int i = 0; i < frames_in_parallel_set; ++i) {
av1_release_scaled_references_fpmt(ppi->parallel_cpi[i]);
}
av1_decrement_ref_counts_fpmt(ppi->cpi->common.buffer_pool,
ref_buffers_used_map);
return AOM_CODEC_OK;
}
#endif // CONFIG_FRAME_PARALLEL_ENCODE
static AOM_INLINE void launch_workers(MultiThreadInfo *const mt_info,
int num_workers) {
const AVxWorkerInterface *const winterface = aom_get_worker_interface();
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = &mt_info->workers[i];
if (i == 0)
winterface->execute(worker);
else
winterface->launch(worker);
}
}
static AOM_INLINE void sync_enc_workers(MultiThreadInfo *const mt_info,
AV1_COMMON *const cm, int num_workers) {
const AVxWorkerInterface *const winterface = aom_get_worker_interface();
int had_error = 0;
// Encoding ends.
for (int i = num_workers - 1; i > 0; i--) {
AVxWorker *const worker = &mt_info->workers[i];
had_error |= !winterface->sync(worker);
}
if (had_error)
aom_internal_error(cm->error, AOM_CODEC_ERROR,
"Failed to encode tile data");
}
static AOM_INLINE void accumulate_counters_enc_workers(AV1_COMP *cpi,
int num_workers) {
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = &cpi->mt_info.workers[i];
EncWorkerData *const thread_data = (EncWorkerData *)worker->data1;
cpi->intrabc_used |= thread_data->td->intrabc_used;
cpi->deltaq_used |= thread_data->td->deltaq_used;
// Accumulate cyclic refresh params.
if (cpi->oxcf.q_cfg.aq_mode == CYCLIC_REFRESH_AQ &&
!frame_is_intra_only(&cpi->common))
av1_accumulate_cyclic_refresh_counters(cpi->cyclic_refresh,
&thread_data->td->mb);
if (thread_data->td != &cpi->td) {
if (cpi->oxcf.cost_upd_freq.mv < COST_UPD_OFF) {
aom_free(thread_data->td->mb.mv_costs);
}
if (cpi->oxcf.cost_upd_freq.dv < COST_UPD_OFF) {
aom_free(thread_data->td->mb.dv_costs);
}
}
av1_dealloc_mb_data(&cpi->common, &thread_data->td->mb);
// Accumulate counters.
if (i > 0) {
av1_accumulate_frame_counts(&cpi->counts, thread_data->td->counts);
accumulate_rd_opt(&cpi->td, thread_data->td);
cpi->td.mb.txfm_search_info.txb_split_count +=
thread_data->td->mb.txfm_search_info.txb_split_count;
#if CONFIG_SPEED_STATS
cpi->td.mb.txfm_search_info.tx_search_count +=
thread_data->td->mb.txfm_search_info.tx_search_count;
#endif // CONFIG_SPEED_STATS
}
}
}
static AOM_INLINE void prepare_enc_workers(AV1_COMP *cpi, AVxWorkerHook hook,
int num_workers) {
MultiThreadInfo *const mt_info = &cpi->mt_info;
AV1_COMMON *const cm = &cpi->common;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = &mt_info->workers[i];
EncWorkerData *const thread_data = &mt_info->tile_thr_data[i];
worker->hook = hook;
worker->data1 = thread_data;
worker->data2 = NULL;
thread_data->thread_id = i;
// Set the starting tile for each thread.
thread_data->start = i;
thread_data->cpi = cpi;
if (i == 0) {
thread_data->td = &cpi->td;
#if !CONFIG_FRAME_PARALLEL_ENCODE
}
#else
} else {
thread_data->td = thread_data->original_td;
}
#endif // CONFIG_FRAME_PARALLEL_ENCODE
thread_data->td->intrabc_used = 0;
thread_data->td->deltaq_used = 0;
thread_data->td->abs_sum_level = 0;
// Before encoding a frame, copy the thread data from cpi.
if (thread_data->td != &cpi->td) {
thread_data->td->mb = cpi->td.mb;
thread_data->td->rd_counts = cpi->td.rd_counts;
thread_data->td->mb.obmc_buffer = thread_data->td->obmc_buffer;
thread_data->td->mb.inter_modes_info = thread_data->td->inter_modes_info;
for (int x = 0; x < 2; x++) {
for (int y = 0; y < 2; y++) {
memcpy(thread_data->td->hash_value_buffer[x][y],
cpi->td.mb.intrabc_hash_info.hash_value_buffer[x][y],
AOM_BUFFER_SIZE_FOR_BLOCK_HASH *
sizeof(*thread_data->td->hash_value_buffer[0][0]));
thread_data->td->mb.intrabc_hash_info.hash_value_buffer[x][y] =
thread_data->td->hash_value_buffer[x][y];
}
}
if (cpi->oxcf.cost_upd_freq.mv < COST_UPD_OFF) {
CHECK_MEM_ERROR(cm, thread_data->td->mb.mv_costs,
(MvCosts *)aom_malloc(sizeof(MvCosts)));
memcpy(thread_data->td->mb.mv_costs, cpi->td.mb.mv_costs,
sizeof(MvCosts));
}
if (cpi->oxcf.cost_upd_freq.dv < COST_UPD_OFF) {
CHECK_MEM_ERROR(cm, thread_data->td->mb.dv_costs,
(IntraBCMVCosts *)aom_malloc(sizeof(IntraBCMVCosts)));
memcpy(thread_data->td->mb.dv_costs, cpi->td.mb.dv_costs,
sizeof(IntraBCMVCosts));
}
}
av1_alloc_mb_data(cm, &thread_data->td->mb,
cpi->sf.rt_sf.use_nonrd_pick_mode);
// Reset cyclic refresh counters.
av1_init_cyclic_refresh_counters(&thread_data->td->mb);
if (thread_data->td->counts != &cpi->counts) {
memcpy(thread_data->td->counts, &cpi->counts, sizeof(cpi->counts));
}
if (i > 0) {
thread_data->td->mb.palette_buffer = thread_data->td->palette_buffer;
thread_data->td->mb.comp_rd_buffer = thread_data->td->comp_rd_buffer;
thread_data->td->mb.tmp_conv_dst = thread_data->td->tmp_conv_dst;
for (int j = 0; j < 2; ++j) {
thread_data->td->mb.tmp_pred_bufs[j] =
thread_data->td->tmp_pred_bufs[j];
}
thread_data->td->mb.pixel_gradient_info =
thread_data->td->pixel_gradient_info;
thread_data->td->mb.e_mbd.tmp_conv_dst = thread_data->td->mb.tmp_conv_dst;
for (int j = 0; j < 2; ++j) {
thread_data->td->mb.e_mbd.tmp_obmc_bufs[j] =
thread_data->td->mb.tmp_pred_bufs[j];
}
}
}
}
#if !CONFIG_REALTIME_ONLY
static AOM_INLINE void fp_prepare_enc_workers(AV1_COMP *cpi, AVxWorkerHook hook,
int num_workers) {
AV1_COMMON *const cm = &cpi->common;
MultiThreadInfo *const mt_info = &cpi->mt_info;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = &mt_info->workers[i];
EncWorkerData *const thread_data = &mt_info->tile_thr_data[i];
worker->hook = hook;
worker->data1 = thread_data;
worker->data2 = NULL;
thread_data->thread_id = i;
// Set the starting tile for each thread.
thread_data->start = i;
thread_data->cpi = cpi;
if (i == 0) {
thread_data->td = &cpi->td;
#if !CONFIG_FRAME_PARALLEL_ENCODE
}
#else
} else {
thread_data->td = thread_data->original_td;
}
#endif // CONFIG_FRAME_PARALLEL_ENCODE
// Before encoding a frame, copy the thread data from cpi.
if (thread_data->td != &cpi->td) {
thread_data->td->mb = cpi->td.mb;
if (cpi->oxcf.cost_upd_freq.mv < COST_UPD_OFF) {
CHECK_MEM_ERROR(cm, thread_data->td->mb.mv_costs,
(MvCosts *)aom_malloc(sizeof(MvCosts)));
memcpy(thread_data->td->mb.mv_costs, cpi->td.mb.mv_costs,
sizeof(MvCosts));
}
if (cpi->oxcf.cost_upd_freq.dv < COST_UPD_OFF) {
CHECK_MEM_ERROR(cm, thread_data->td->mb.dv_costs,
(IntraBCMVCosts *)aom_malloc(sizeof(IntraBCMVCosts)));
memcpy(thread_data->td->mb.dv_costs, cpi->td.mb.dv_costs,
sizeof(IntraBCMVCosts));
}
}
av1_alloc_mb_data(cm, &thread_data->td->mb,
cpi->sf.rt_sf.use_nonrd_pick_mode);
}
}
#endif
// Computes the number of workers for row multi-threading of encoding stage
static AOM_INLINE int compute_num_enc_row_mt_workers(AV1_COMMON *const cm,
int max_threads) {
TileInfo tile_info;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int total_num_threads_row_mt = 0;
for (int row = 0; row < tile_rows; row++) {
for (int col = 0; col < tile_cols; col++) {
av1_tile_init(&tile_info, cm, row, col);
const int num_sb_rows_in_tile = av1_get_sb_rows_in_tile(cm, tile_info);
const int num_sb_cols_in_tile = av1_get_sb_cols_in_tile(cm, tile_info);
total_num_threads_row_mt +=
AOMMIN((num_sb_cols_in_tile + 1) >> 1, num_sb_rows_in_tile);
}
}
return AOMMIN(max_threads, total_num_threads_row_mt);
}
// Computes the number of workers for tile multi-threading of encoding stage
static AOM_INLINE int compute_num_enc_tile_mt_workers(AV1_COMMON *const cm,
int max_threads) {
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
return AOMMIN(max_threads, tile_cols * tile_rows);
}
// Find max worker of all MT stages
int av1_get_max_num_workers(AV1_COMP *cpi) {
int max_num_workers = 0;
for (int i = MOD_FP; i < NUM_MT_MODULES; i++)
max_num_workers =
AOMMAX(cpi->ppi->p_mt_info.num_mod_workers[i], max_num_workers);
assert(max_num_workers >= 1);
return AOMMIN(max_num_workers, cpi->oxcf.max_threads);
}
// Computes the number of workers for encoding stage (row/tile multi-threading)
int av1_compute_num_enc_workers(AV1_COMP *cpi, int max_workers) {
if (max_workers <= 1) return 1;
if (cpi->oxcf.row_mt)
return compute_num_enc_row_mt_workers(&cpi->common, max_workers);
else
return compute_num_enc_tile_mt_workers(&cpi->common, max_workers);
}
void av1_encode_tiles_mt(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
MultiThreadInfo *const mt_info = &cpi->mt_info;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int num_workers = mt_info->num_mod_workers[MOD_ENC];
assert(IMPLIES(cpi->tile_data == NULL,
cpi->allocated_tiles < tile_cols * tile_rows));
if (cpi->allocated_tiles < tile_cols * tile_rows) av1_alloc_tile_data(cpi);
av1_init_tile_data(cpi);
num_workers = AOMMIN(num_workers, mt_info->num_workers);
prepare_enc_workers(cpi, enc_worker_hook, num_workers);
launch_workers(&cpi->mt_info, num_workers);
sync_enc_workers(&cpi->mt_info, cm, num_workers);
accumulate_counters_enc_workers(cpi, num_workers);
}
// Accumulate frame counts. FRAME_COUNTS consist solely of 'unsigned int'
// members, so we treat it as an array, and sum over the whole length.
void av1_accumulate_frame_counts(FRAME_COUNTS *acc_counts,
const FRAME_COUNTS *counts) {
unsigned int *const acc = (unsigned int *)acc_counts;
const unsigned int *const cnt = (const unsigned int *)counts;
const unsigned int n_counts = sizeof(FRAME_COUNTS) / sizeof(unsigned int);
for (unsigned int i = 0; i < n_counts; i++) acc[i] += cnt[i];
}
// Computes the maximum number of sb_rows for row multi-threading of encoding
// stage
static AOM_INLINE void compute_max_sb_rows_cols(AV1_COMP *cpi, int *max_sb_rows,
int *max_sb_cols) {
AV1_COMMON *const cm = &cpi->common;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
for (int row = 0; row < tile_rows; row++) {
for (int col = 0; col < tile_cols; col++) {
const int tile_index = row * cm->tiles.cols + col;
TileInfo tile_info = cpi->tile_data[tile_index].tile_info;
const int num_sb_rows_in_tile = av1_get_sb_rows_in_tile(cm, tile_info);
const int num_sb_cols_in_tile = av1_get_sb_cols_in_tile(cm, tile_info);
*max_sb_rows = AOMMAX(*max_sb_rows, num_sb_rows_in_tile);
*max_sb_cols = AOMMAX(*max_sb_cols, num_sb_cols_in_tile);
}
}
}
#if !CONFIG_REALTIME_ONLY
// Computes the number of workers for firstpass stage (row/tile multi-threading)
int av1_fp_compute_num_enc_workers(AV1_COMP *cpi) {
AV1_COMMON *cm = &cpi->common;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int total_num_threads_row_mt = 0;
TileInfo tile_info;
if (cpi->oxcf.max_threads <= 1) return 1;
for (int row = 0; row < tile_rows; row++) {
for (int col = 0; col < tile_cols; col++) {
av1_tile_init(&tile_info, cm, row, col);
const int num_mb_rows_in_tile =
av1_get_unit_rows_in_tile(tile_info, cpi->fp_block_size);
const int num_mb_cols_in_tile =
av1_get_unit_cols_in_tile(tile_info, cpi->fp_block_size);
total_num_threads_row_mt +=
AOMMIN((num_mb_cols_in_tile + 1) >> 1, num_mb_rows_in_tile);
}
}
return AOMMIN(cpi->oxcf.max_threads, total_num_threads_row_mt);
}
// Computes the maximum number of mb_rows for row multi-threading of firstpass
// stage
static AOM_INLINE int fp_compute_max_mb_rows(const AV1_COMMON *const cm,
const TileDataEnc *const tile_data,
const BLOCK_SIZE fp_block_size) {
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int max_mb_rows = 0;
for (int row = 0; row < tile_rows; row++) {
for (int col = 0; col < tile_cols; col++) {
const int tile_index = row * cm->tiles.cols + col;
TileInfo tile_info = tile_data[tile_index].tile_info;
const int num_mb_rows_in_tile =
av1_get_unit_rows_in_tile(tile_info, fp_block_size);
max_mb_rows = AOMMAX(max_mb_rows, num_mb_rows_in_tile);
}
}
return max_mb_rows;
}
#endif
void av1_encode_tiles_row_mt(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
MultiThreadInfo *const mt_info = &cpi->mt_info;
AV1EncRowMultiThreadInfo *const enc_row_mt = &mt_info->enc_row_mt;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int *thread_id_to_tile_id = enc_row_mt->thread_id_to_tile_id;
int max_sb_rows = 0, max_sb_cols = 0;
int num_workers = mt_info->num_mod_workers[MOD_ENC];
assert(IMPLIES(cpi->tile_data == NULL,
cpi->allocated_tiles < tile_cols * tile_rows));
if (cpi->allocated_tiles < tile_cols * tile_rows) {
av1_row_mt_mem_dealloc(cpi);
av1_alloc_tile_data(cpi);
}
av1_init_tile_data(cpi);
compute_max_sb_rows_cols(cpi, &max_sb_rows, &max_sb_cols);
if (enc_row_mt->allocated_tile_cols != tile_cols ||
enc_row_mt->allocated_tile_rows != tile_rows ||
enc_row_mt->allocated_rows != max_sb_rows ||
enc_row_mt->allocated_cols != (max_sb_cols - 1)) {
av1_row_mt_mem_dealloc(cpi);
row_mt_mem_alloc(cpi, max_sb_rows, max_sb_cols,
cpi->oxcf.algo_cfg.cdf_update_mode);
}
memset(thread_id_to_tile_id, -1,
sizeof(*thread_id_to_tile_id) * MAX_NUM_THREADS);
for (int tile_row = 0; tile_row < tile_rows; tile_row++) {
for (int tile_col = 0; tile_col < tile_cols; tile_col++) {
int tile_index = tile_row * tile_cols + tile_col;
TileDataEnc *const this_tile = &cpi->tile_data[tile_index];
AV1EncRowMultiThreadSync *const row_mt_sync = &this_tile->row_mt_sync;
// Initialize num_finished_cols to -1 for all rows.
memset(row_mt_sync->num_finished_cols, -1,
sizeof(*row_mt_sync->num_finished_cols) * max_sb_rows);
row_mt_sync->next_mi_row = this_tile->tile_info.mi_row_start;
row_mt_sync->num_threads_working = 0;
av1_inter_mode_data_init(this_tile);
av1_zero_above_context(cm, &cpi->td.mb.e_mbd,
this_tile->tile_info.mi_col_start,
this_tile->tile_info.mi_col_end, tile_row);
}
}
num_workers = AOMMIN(num_workers, mt_info->num_workers);
assign_tile_to_thread(thread_id_to_tile_id, tile_cols * tile_rows,
num_workers);
prepare_enc_workers(cpi, enc_row_mt_worker_hook, num_workers);
launch_workers(&cpi->mt_info, num_workers);
sync_enc_workers(&cpi->mt_info, cm, num_workers);
if (cm->delta_q_info.delta_lf_present_flag) update_delta_lf_for_row_mt(cpi);
accumulate_counters_enc_workers(cpi, num_workers);
}
#if !CONFIG_REALTIME_ONLY
void av1_fp_encode_tiles_row_mt(AV1_COMP *cpi) {
AV1_COMMON *const cm = &cpi->common;
MultiThreadInfo *const mt_info = &cpi->mt_info;
AV1EncRowMultiThreadInfo *const enc_row_mt = &mt_info->enc_row_mt;
const int tile_cols = cm->tiles.cols;
const int tile_rows = cm->tiles.rows;
int *thread_id_to_tile_id = enc_row_mt->thread_id_to_tile_id;
int num_workers = 0;
int max_mb_rows = 0;
assert(IMPLIES(cpi->tile_data == NULL,
cpi->allocated_tiles < tile_cols * tile_rows));
if (cpi->allocated_tiles < tile_cols * tile_rows) {
av1_row_mt_mem_dealloc(cpi);
av1_alloc_tile_data(cpi);
}
av1_init_tile_data(cpi);
const BLOCK_SIZE fp_block_size = cpi->fp_block_size;
max_mb_rows = fp_compute_max_mb_rows(cm, cpi->tile_data, fp_block_size);
// For pass = 1, compute the no. of workers needed. For single-pass encode
// (pass = 0), no. of workers are already computed.
if (mt_info->num_mod_workers[MOD_FP] == 0)
num_workers = av1_fp_compute_num_enc_workers(cpi);
else
num_workers = mt_info->num_mod_workers[MOD_FP];
if (enc_row_mt->allocated_tile_cols != tile_cols ||
enc_row_mt->allocated_tile_rows != tile_rows ||
enc_row_mt->allocated_rows != max_mb_rows) {
av1_row_mt_mem_dealloc(cpi);
row_mt_mem_alloc(cpi, max_mb_rows, -1, 0);
}
memset(thread_id_to_tile_id, -1,
sizeof(*thread_id_to_tile_id) * MAX_NUM_THREADS);
for (int tile_row = 0; tile_row < tile_rows; tile_row++) {
for (int tile_col = 0; tile_col < tile_cols; tile_col++) {
int tile_index = tile_row * tile_cols + tile_col;
TileDataEnc *const this_tile = &cpi->tile_data[tile_index];
AV1EncRowMultiThreadSync *const row_mt_sync = &this_tile->row_mt_sync;
// Initialize num_finished_cols to -1 for all rows.
memset(row_mt_sync->num_finished_cols, -1,
sizeof(*row_mt_sync->num_finished_cols) * max_mb_rows);
row_mt_sync->next_mi_row = this_tile->tile_info.mi_row_start;
row_mt_sync->num_threads_working = 0;
}
}
num_workers = AOMMIN(num_workers, mt_info->num_workers);
assign_tile_to_thread(thread_id_to_tile_id, tile_cols * tile_rows,
num_workers);
fp_prepare_enc_workers(cpi, fp_enc_row_mt_worker_hook, num_workers);
launch_workers(&cpi->mt_info, num_workers);
sync_enc_workers(&cpi->mt_info, cm, num_workers);
for (int i = num_workers - 1; i >= 0; i--) {
EncWorkerData *const thread_data = &cpi->mt_info.tile_thr_data[i];
if (thread_data->td != &cpi->td) {
if (cpi->oxcf.cost_upd_freq.mv < COST_UPD_OFF) {
aom_free(thread_data->td->mb.mv_costs);
}
if (cpi->oxcf.cost_upd_freq.dv < COST_UPD_OFF) {
aom_free(thread_data->td->mb.dv_costs);
}
}
av1_dealloc_mb_data(cm, &thread_data->td->mb);
}
}
void av1_tpl_row_mt_sync_read_dummy(AV1TplRowMultiThreadSync *tpl_mt_sync,
int r, int c) {
(void)tpl_mt_sync;
(void)r;
(void)c;
return;
}
void av1_tpl_row_mt_sync_write_dummy(AV1TplRowMultiThreadSync *tpl_mt_sync,
int r, int c, int cols) {
(void)tpl_mt_sync;
(void)r;
(void)c;
(void)cols;
return;
}
void av1_tpl_row_mt_sync_read(AV1TplRowMultiThreadSync *tpl_row_mt_sync, int r,
int c) {
#if CONFIG_MULTITHREAD
int nsync = tpl_row_mt_sync->sync_range;
if (r) {
pthread_mutex_t *const mutex = &tpl_row_mt_sync->mutex_[r - 1];
pthread_mutex_lock(mutex);
while (c > tpl_row_mt_sync->num_finished_cols[r - 1] - nsync)
pthread_cond_wait(&tpl_row_mt_sync->cond_[r - 1], mutex);
pthread_mutex_unlock(mutex);
}
#else
(void)tpl_row_mt_sync;
(void)r;
(void)c;
#endif // CONFIG_MULTITHREAD
}
void av1_tpl_row_mt_sync_write(AV1TplRowMultiThreadSync *tpl_row_mt_sync, int r,
int c, int cols) {
#if CONFIG_MULTITHREAD
int nsync = tpl_row_mt_sync->sync_range;
int cur;
// Only signal when there are enough encoded blocks for next row to run.
int sig = 1;
if (c < cols - 1) {
cur = c;
if (c % nsync) sig = 0;
} else {
cur = cols + nsync;
}
if (sig) {
pthread_mutex_lock(&tpl_row_mt_sync->mutex_[r]);
tpl_row_mt_sync->num_finished_cols[r] = cur;
pthread_cond_signal(&tpl_row_mt_sync->cond_[r]);
pthread_mutex_unlock(&tpl_row_mt_sync->mutex_[r]);
}
#else
(void)tpl_row_mt_sync;
(void)r;
(void)c;
(void)cols;
#endif // CONFIG_MULTITHREAD
}
// Each worker calls tpl_worker_hook() and computes the tpl data.
static int tpl_worker_hook(void *arg1, void *unused) {
(void)unused;
EncWorkerData *thread_data = (EncWorkerData *)arg1;
AV1_COMP *cpi = thread_data->cpi;
AV1_COMMON *cm = &cpi->common;
MACROBLOCK *x = &thread_data->td->mb;
MACROBLOCKD *xd = &x->e_mbd;
TplTxfmStats *tpl_txfm_stats = &thread_data->td->tpl_txfm_stats;
CommonModeInfoParams *mi_params = &cm->mi_params;
BLOCK_SIZE bsize = convert_length_to_bsize(cpi->ppi->tpl_data.tpl_bsize_1d);
TX_SIZE tx_size = max_txsize_lookup[bsize];
int mi_height = mi_size_high[bsize];
int num_active_workers = cpi->ppi->tpl_data.tpl_mt_sync.num_threads_working;
av1_init_tpl_txfm_stats(tpl_txfm_stats);
for (int mi_row = thread_data->start * mi_height; mi_row < mi_params->mi_rows;
mi_row += num_active_workers * mi_height) {
// Motion estimation row boundary
av1_set_mv_row_limits(mi_params, &x->mv_limits, mi_row, mi_height,
cpi->oxcf.border_in_pixels);
xd->mb_to_top_edge = -GET_MV_SUBPEL(mi_row * MI_SIZE);
xd->mb_to_bottom_edge =
GET_MV_SUBPEL((mi_params->mi_rows - mi_height - mi_row) * MI_SIZE);
av1_mc_flow_dispenser_row(cpi, tpl_txfm_stats, x, mi_row, bsize, tx_size);
}
return 1;
}
// Deallocate tpl synchronization related mutex and data.
void av1_tpl_dealloc(AV1TplRowMultiThreadSync *tpl_sync) {
assert(tpl_sync != NULL);
#if CONFIG_MULTITHREAD
if (tpl_sync->mutex_ != NULL) {
for (int i = 0; i < tpl_sync->rows; ++i)
pthread_mutex_destroy(&tpl_sync->mutex_[i]);
aom_free(tpl_sync->mutex_);
}
if (tpl_sync->cond_ != NULL) {
for (int i = 0; i < tpl_sync->rows; ++i)
pthread_cond_destroy(&tpl_sync->cond_[i]);
aom_free(tpl_sync->cond_);
}
#endif // CONFIG_MULTITHREAD
aom_free(tpl_sync->num_finished_cols);
// clear the structure as the source of this call may be a resize in which
// case this call will be followed by an _alloc() which may fail.
av1_zero(*tpl_sync);
}
// Allocate memory for tpl row synchronization.
void av1_tpl_alloc(AV1TplRowMultiThreadSync *tpl_sync, AV1_COMMON *cm,
int mb_rows) {
tpl_sync->rows = mb_rows;
#if CONFIG_MULTITHREAD
{
CHECK_MEM_ERROR(cm, tpl_sync->mutex_,
aom_malloc(sizeof(*tpl_sync->mutex_) * mb_rows));
if (tpl_sync->mutex_) {
for (int i = 0; i < mb_rows; ++i)
pthread_mutex_init(&tpl_sync->mutex_[i], NULL);
}
CHECK_MEM_ERROR(cm, tpl_sync->cond_,
aom_malloc(sizeof(*tpl_sync->cond_) * mb_rows));
if (tpl_sync->cond_) {
for (int i = 0; i < mb_rows; ++i)
pthread_cond_init(&tpl_sync->cond_[i], NULL);
}
}
#endif // CONFIG_MULTITHREAD
CHECK_MEM_ERROR(cm, tpl_sync->num_finished_cols,
aom_malloc(sizeof(*tpl_sync->num_finished_cols) * mb_rows));
// Set up nsync.
tpl_sync->sync_range = 1;
}
// Each worker is prepared by assigning the hook function and individual thread
// data.
static AOM_INLINE void prepare_tpl_workers(AV1_COMP *cpi, AVxWorkerHook hook,
int num_workers) {
MultiThreadInfo *mt_info = &cpi->mt_info;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *worker = &mt_info->workers[i];
EncWorkerData *thread_data = &mt_info->tile_thr_data[i];
worker->hook = hook;
worker->data1 = thread_data;
worker->data2 = NULL;
thread_data->thread_id = i;
// Set the starting tile for each thread.
thread_data->start = i;
thread_data->cpi = cpi;
if (i == 0) {
thread_data->td = &cpi->td;
#if !CONFIG_FRAME_PARALLEL_ENCODE
}
#else
} else {
thread_data->td = thread_data->original_td;
}
#endif // CONFIG_FRAME_PARALLEL_ENCODE
// Before encoding a frame, copy the thread data from cpi.
if (thread_data->td != &cpi->td) {
thread_data->td->mb = cpi->td.mb;
// OBMC buffers are used only to init MS params and remain unused when
// called from tpl, hence set the buffers to defaults.
av1_init_obmc_buffer(&thread_data->td->mb.obmc_buffer);
thread_data->td->mb.tmp_conv_dst = thread_data->td->tmp_conv_dst;
thread_data->td->mb.e_mbd.tmp_conv_dst = thread_data->td->mb.tmp_conv_dst;
}
}
}
// Accumulate transform stats after tpl.
static void tpl_accumulate_txfm_stats(ThreadData *main_td,
const MultiThreadInfo *mt_info,
int num_workers) {
TplTxfmStats *accumulated_stats = &main_td->tpl_txfm_stats;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = &mt_info->workers[i];
EncWorkerData *const thread_data = (EncWorkerData *)worker->data1;
ThreadData *td = thread_data->td;
if (td != main_td) {
const TplTxfmStats *tpl_txfm_stats = &td->tpl_txfm_stats;
av1_accumulate_tpl_txfm_stats(tpl_txfm_stats, accumulated_stats);
}
}
}
// Implements multi-threading for tpl.
void av1_mc_flow_dispenser_mt(AV1_COMP *cpi) {
AV1_COMMON *cm = &cpi->common;
CommonModeInfoParams *mi_params = &cm->mi_params;
MultiThreadInfo *mt_info = &cpi->mt_info;
TplParams *tpl_data = &cpi->ppi->tpl_data;
AV1TplRowMultiThreadSync *tpl_sync = &tpl_data->tpl_mt_sync;
int mb_rows = mi_params->mb_rows;
int num_workers =
AOMMIN(mt_info->num_mod_workers[MOD_TPL], mt_info->num_workers);
if (mb_rows != tpl_sync->rows) {
av1_tpl_dealloc(tpl_sync);
av1_tpl_alloc(tpl_sync, cm, mb_rows);
}
tpl_sync->num_threads_working = num_workers;
// Initialize cur_mb_col to -1 for all MB rows.
memset(tpl_sync->num_finished_cols, -1,
sizeof(*tpl_sync->num_finished_cols) * mb_rows);
prepare_tpl_workers(cpi, tpl_worker_hook, num_workers);
launch_workers(&cpi->mt_info, num_workers);
sync_enc_workers(&cpi->mt_info, cm, num_workers);
tpl_accumulate_txfm_stats(&cpi->td, &cpi->mt_info, num_workers);
}
// Deallocate memory for temporal filter multi-thread synchronization.
void av1_tf_mt_dealloc(AV1TemporalFilterSync *tf_sync) {
assert(tf_sync != NULL);
#if CONFIG_MULTITHREAD
if (tf_sync->mutex_ != NULL) {
pthread_mutex_destroy(tf_sync->mutex_);
aom_free(tf_sync->mutex_);
}
#endif // CONFIG_MULTITHREAD
tf_sync->next_tf_row = 0;
}
// Checks if a job is available. If job is available,
// populates next_tf_row and returns 1, else returns 0.
static AOM_INLINE int tf_get_next_job(AV1TemporalFilterSync *tf_mt_sync,
int *current_mb_row, int mb_rows) {
int do_next_row = 0;
#if CONFIG_MULTITHREAD
pthread_mutex_t *tf_mutex_ = tf_mt_sync->mutex_;
pthread_mutex_lock(tf_mutex_);
#endif
if (tf_mt_sync->next_tf_row < mb_rows) {
*current_mb_row = tf_mt_sync->next_tf_row;
tf_mt_sync->next_tf_row++;
do_next_row = 1;
}
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(tf_mutex_);
#endif
return do_next_row;
}
// Hook function for each thread in temporal filter multi-threading.
static int tf_worker_hook(void *arg1, void *unused) {
(void)unused;
EncWorkerData *thread_data = (EncWorkerData *)arg1;
AV1_COMP *cpi = thread_data->cpi;
ThreadData *td = thread_data->td;
TemporalFilterCtx *tf_ctx = &cpi->tf_ctx;
AV1TemporalFilterSync *tf_sync = &cpi->mt_info.tf_sync;
const struct scale_factors *scale = &cpi->tf_ctx.sf;
const int num_planes = av1_num_planes(&cpi->common);
assert(num_planes >= 1 && num_planes <= MAX_MB_PLANE);
MACROBLOCKD *mbd = &td->mb.e_mbd;
uint8_t *input_buffer[MAX_MB_PLANE];
MB_MODE_INFO **input_mb_mode_info;
tf_save_state(mbd, &input_mb_mode_info, input_buffer, num_planes);
tf_setup_macroblockd(mbd, &td->tf_data, scale);
int current_mb_row = -1;
while (tf_get_next_job(tf_sync, &current_mb_row, tf_ctx->mb_rows))
av1_tf_do_filtering_row(cpi, td, current_mb_row);
tf_restore_state(mbd, input_mb_mode_info, input_buffer, num_planes);
return 1;
}
// Assigns temporal filter hook function and thread data to each worker.
static void prepare_tf_workers(AV1_COMP *cpi, AVxWorkerHook hook,
int num_workers, int is_highbitdepth) {
MultiThreadInfo *mt_info = &cpi->mt_info;
mt_info->tf_sync.next_tf_row = 0;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *worker = &mt_info->workers[i];
EncWorkerData *thread_data = &mt_info->tile_thr_data[i];
worker->hook = hook;
worker->data1 = thread_data;
worker->data2 = NULL;
thread_data->thread_id = i;
// Set the starting tile for each thread.
thread_data->start = i;
thread_data->cpi = cpi;
if (i == 0) {
thread_data->td = &cpi->td;
#if !CONFIG_FRAME_PARALLEL_ENCODE
}
#else
} else {
thread_data->td = thread_data->original_td;
}
#endif // CONFIG_FRAME_PARALLEL_ENCODE
// Before encoding a frame, copy the thread data from cpi.
if (thread_data->td != &cpi->td) {
thread_data->td->mb = cpi->td.mb;
// OBMC buffers are used only to init MS params and remain unused when
// called from tf, hence set the buffers to defaults.
av1_init_obmc_buffer(&thread_data->td->mb.obmc_buffer);
tf_alloc_and_reset_data(&thread_data->td->tf_data, cpi->tf_ctx.num_pels,
is_highbitdepth);
}
}
}
// Deallocate thread specific data for temporal filter.
static void tf_dealloc_thread_data(AV1_COMP *cpi, int num_workers,
int is_highbitdepth) {
MultiThreadInfo *mt_info = &cpi->mt_info;
for (int i = num_workers - 1; i >= 0; i--) {
EncWorkerData *thread_data = &mt_info->tile_thr_data[i];
ThreadData *td = thread_data->td;
if (td != &cpi->td) tf_dealloc_data(&td->tf_data, is_highbitdepth);
}
}
// Accumulate sse and sum after temporal filtering.
static void tf_accumulate_frame_diff(AV1_COMP *cpi, int num_workers) {
FRAME_DIFF *total_diff = &cpi->td.tf_data.diff;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *const worker = &cpi->mt_info.workers[i];
EncWorkerData *const thread_data = (EncWorkerData *)worker->data1;
ThreadData *td = thread_data->td;
FRAME_DIFF *diff = &td->tf_data.diff;
if (td != &cpi->td) {
total_diff->sse += diff->sse;
total_diff->sum += diff->sum;
}
}
}
// Implements multi-threading for temporal filter.
void av1_tf_do_filtering_mt(AV1_COMP *cpi) {
AV1_COMMON *cm = &cpi->common;
MultiThreadInfo *mt_info = &cpi->mt_info;
const int is_highbitdepth = cpi->tf_ctx.is_highbitdepth;
int num_workers =
AOMMIN(mt_info->num_mod_workers[MOD_TF], mt_info->num_workers);
prepare_tf_workers(cpi, tf_worker_hook, num_workers, is_highbitdepth);
launch_workers(mt_info, num_workers);
sync_enc_workers(mt_info, cm, num_workers);
tf_accumulate_frame_diff(cpi, num_workers);
tf_dealloc_thread_data(cpi, num_workers, is_highbitdepth);
}
// Checks if a job is available in the current direction. If a job is available,
// frame_idx will be populated and returns 1, else returns 0.
static AOM_INLINE int get_next_gm_job(AV1_COMP *cpi, int *frame_idx,
int cur_dir) {
GlobalMotionInfo *gm_info = &cpi->gm_info;
JobInfo *job_info = &cpi->mt_info.gm_sync.job_info;
int total_refs = gm_info->num_ref_frames[cur_dir];
int8_t cur_frame_to_process = job_info->next_frame_to_process[cur_dir];
if (cur_frame_to_process < total_refs && !job_info->early_exit[cur_dir]) {
*frame_idx = gm_info->reference_frames[cur_dir][cur_frame_to_process].frame;
job_info->next_frame_to_process[cur_dir] += 1;
return 1;
}
return 0;
}
// Switches the current direction and calls the function get_next_gm_job() if
// the speed feature 'prune_ref_frame_for_gm_search' is not set.
static AOM_INLINE void switch_direction(AV1_COMP *cpi, int *frame_idx,
int *cur_dir) {
if (cpi->sf.gm_sf.prune_ref_frame_for_gm_search) return;
// Switch the direction and get next job
*cur_dir = !(*cur_dir);
get_next_gm_job(cpi, frame_idx, *(cur_dir));
}
// Initializes inliers, num_inliers and segment_map.
static AOM_INLINE void init_gm_thread_data(
const GlobalMotionInfo *gm_info, GlobalMotionThreadData *thread_data) {
for (int m = 0; m < RANSAC_NUM_MOTIONS; m++) {
MotionModel motion_params = thread_data->params_by_motion[m];
av1_zero(motion_params.params);
motion_params.num_inliers = 0;
}
av1_zero_array(thread_data->segment_map,
gm_info->segment_map_w * gm_info->segment_map_h);
}
// Hook function for each thread in global motion multi-threading.
static int gm_mt_worker_hook(void *arg1, void *unused) {
(void)unused;
EncWorkerData *thread_data = (EncWorkerData *)arg1;
AV1_COMP *cpi = thread_data->cpi;
GlobalMotionInfo *gm_info = &cpi->gm_info;
MultiThreadInfo *mt_info = &cpi->mt_info;
JobInfo *job_info = &mt_info->gm_sync.job_info;
int thread_id = thread_data->thread_id;
GlobalMotionThreadData *gm_thread_data =
&mt_info->gm_sync.thread_data[thread_id];
int cur_dir = job_info->thread_id_to_dir[thread_id];
#if CONFIG_MULTITHREAD
pthread_mutex_t *gm_mt_mutex_ = mt_info->gm_sync.mutex_;
#endif
while (1) {
int ref_buf_idx = -1;
int ref_frame_idx = -1;
#if CONFIG_MULTITHREAD
pthread_mutex_lock(gm_mt_mutex_);
#endif
// Populates ref_buf_idx(the reference frame type) for which global motion
// estimation will be done.
if (!get_next_gm_job(cpi, &ref_buf_idx, cur_dir)) {
// No jobs are available for the current direction. Switch
// to other direction and get the next job, if available.
switch_direction(cpi, &ref_buf_idx, &cur_dir);
}
// 'ref_frame_idx' holds the index of the current reference frame type in
// gm_info->reference_frames. job_info->next_frame_to_process will be
// incremented in get_next_gm_job() and hence subtracting by 1.
ref_frame_idx = job_info->next_frame_to_process[cur_dir] - 1;
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(gm_mt_mutex_);
#endif
if (ref_buf_idx == -1) break;
init_gm_thread_data(gm_info, gm_thread_data);
// Compute global motion for the given ref_buf_idx.
av1_compute_gm_for_valid_ref_frames(
cpi, gm_info->ref_buf, ref_buf_idx, gm_info->num_src_corners,
gm_info->src_corners, gm_info->src_buffer,
gm_thread_data->params_by_motion, gm_thread_data->segment_map,
gm_info->segment_map_w, gm_info->segment_map_h);
#if CONFIG_MULTITHREAD
pthread_mutex_lock(gm_mt_mutex_);
#endif
assert(ref_frame_idx != -1);
// If global motion w.r.t. current ref frame is
// INVALID/TRANSLATION/IDENTITY, skip the evaluation of global motion w.r.t
// the remaining ref frames in that direction. The below exit is disabled
// when ref frame distance w.r.t. current frame is zero. E.g.:
// source_alt_ref_frame w.r.t. ARF frames.
if (cpi->sf.gm_sf.prune_ref_frame_for_gm_search &&
gm_info->reference_frames[cur_dir][ref_frame_idx].distance != 0 &&
cpi->common.global_motion[ref_buf_idx].wmtype != ROTZOOM)
job_info->early_exit[cur_dir] = 1;
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(gm_mt_mutex_);
#endif
}
return 1;
}
// Assigns global motion hook function and thread data to each worker.
static AOM_INLINE void prepare_gm_workers(AV1_COMP *cpi, AVxWorkerHook hook,
int num_workers) {
MultiThreadInfo *mt_info = &cpi->mt_info;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *worker = &mt_info->workers[i];
EncWorkerData *thread_data = &mt_info->tile_thr_data[i];
worker->hook = hook;
worker->data1 = thread_data;
worker->data2 = NULL;
thread_data->thread_id = i;
// Set the starting tile for each thread.
thread_data->start = i;
thread_data->cpi = cpi;
if (i == 0) {
thread_data->td = &cpi->td;
#if !CONFIG_FRAME_PARALLEL_ENCODE
}
#else
} else {
thread_data->td = thread_data->original_td;
}
#endif // CONFIG_FRAME_PARALLEL_ENCODE
}
}
// Assigns available threads to past/future direction.
static AOM_INLINE void assign_thread_to_dir(int8_t *thread_id_to_dir,
int num_workers) {
int8_t frame_dir_idx = 0;
for (int i = 0; i < num_workers; i++) {
thread_id_to_dir[i] = frame_dir_idx++;
if (frame_dir_idx == MAX_DIRECTIONS) frame_dir_idx = 0;
}
}
// Computes number of workers for global motion multi-threading.
static AOM_INLINE int compute_gm_workers(const AV1_COMP *cpi) {
int total_refs =
cpi->gm_info.num_ref_frames[0] + cpi->gm_info.num_ref_frames[1];
int num_gm_workers = cpi->sf.gm_sf.prune_ref_frame_for_gm_search
? AOMMIN(MAX_DIRECTIONS, total_refs)
: total_refs;
num_gm_workers = AOMMIN(num_gm_workers, cpi->mt_info.num_workers);
return (num_gm_workers);
}
// Frees the memory allocated for each worker in global motion multi-threading.
void av1_gm_dealloc(AV1GlobalMotionSync *gm_sync_data) {
if (gm_sync_data->thread_data != NULL) {
for (int j = 0; j < gm_sync_data->allocated_workers; j++) {
GlobalMotionThreadData *thread_data = &gm_sync_data->thread_data[j];
aom_free(thread_data->segment_map);
for (int m = 0; m < RANSAC_NUM_MOTIONS; m++)
aom_free(thread_data->params_by_motion[m].inliers);
}
aom_free(gm_sync_data->thread_data);
}
}
// Allocates memory for inliers and segment_map for each worker in global motion
// multi-threading.
static AOM_INLINE void gm_alloc(AV1_COMP *cpi, int num_workers) {
AV1_COMMON *cm = &cpi->common;
AV1GlobalMotionSync *gm_sync = &cpi->mt_info.gm_sync;
GlobalMotionInfo *gm_info = &cpi->gm_info;
gm_sync->allocated_workers = num_workers;
gm_sync->allocated_width = cpi->source->y_width;
gm_sync->allocated_height = cpi->source->y_height;
CHECK_MEM_ERROR(cm, gm_sync->thread_data,
aom_malloc(sizeof(*gm_sync->thread_data) * num_workers));
for (int i = 0; i < num_workers; i++) {
GlobalMotionThreadData *thread_data = &gm_sync->thread_data[i];
CHECK_MEM_ERROR(
cm, thread_data->segment_map,
aom_malloc(sizeof(*thread_data->segment_map) * gm_info->segment_map_w *
gm_info->segment_map_h));
for (int m = 0; m < RANSAC_NUM_MOTIONS; m++) {
CHECK_MEM_ERROR(
cm, thread_data->params_by_motion[m].inliers,
aom_malloc(sizeof(*thread_data->params_by_motion[m].inliers) * 2 *
MAX_CORNERS));
}
}
}
// Implements multi-threading for global motion.
void av1_global_motion_estimation_mt(AV1_COMP *cpi) {
AV1GlobalMotionSync *gm_sync = &cpi->mt_info.gm_sync;
JobInfo *job_info = &gm_sync->job_info;
av1_zero(*job_info);
int num_workers = compute_gm_workers(cpi);
if (num_workers > gm_sync->allocated_workers ||
cpi->source->y_width != gm_sync->allocated_width ||
cpi->source->y_height != gm_sync->allocated_height) {
av1_gm_dealloc(gm_sync);
gm_alloc(cpi, num_workers);
}
assign_thread_to_dir(job_info->thread_id_to_dir, num_workers);
prepare_gm_workers(cpi, gm_mt_worker_hook, num_workers);
launch_workers(&cpi->mt_info, num_workers);
sync_enc_workers(&cpi->mt_info, &cpi->common, num_workers);
}
#endif // !CONFIG_REALTIME_ONLY
// Compare and order tiles based on absolute sum of tx coeffs.
static int compare_tile_order(const void *a, const void *b) {
const PackBSTileOrder *const tile_a = (const PackBSTileOrder *)a;
const PackBSTileOrder *const tile_b = (const PackBSTileOrder *)b;
if (tile_a->abs_sum_level > tile_b->abs_sum_level)
return -1;
else if (tile_a->abs_sum_level == tile_b->abs_sum_level)
return (tile_a->tile_idx > tile_b->tile_idx ? 1 : -1);
else
return 1;
}
// Get next tile index to be processed for pack bitstream
static AOM_INLINE int get_next_pack_bs_tile_idx(
AV1EncPackBSSync *const pack_bs_sync, const int num_tiles) {
assert(pack_bs_sync->next_job_idx <= num_tiles);
if (pack_bs_sync->next_job_idx == num_tiles) return -1;
return pack_bs_sync->pack_bs_tile_order[pack_bs_sync->next_job_idx++]
.tile_idx;
}
// Calculates bitstream chunk size based on total buffer size and tile or tile
// group size.
static AOM_INLINE size_t get_bs_chunk_size(int tg_or_tile_size,
const int frame_or_tg_size,
size_t *remain_buf_size,
size_t max_buf_size,
int is_last_chunk) {
size_t this_chunk_size;
assert(*remain_buf_size > 0);
if (is_last_chunk) {
this_chunk_size = *remain_buf_size;
*remain_buf_size = 0;
} else {
const uint64_t size_scale = (uint64_t)max_buf_size * tg_or_tile_size;
this_chunk_size = (size_t)(size_scale / frame_or_tg_size);
*remain_buf_size -= this_chunk_size;
assert(*remain_buf_size > 0);
}
assert(this_chunk_size > 0);
return this_chunk_size;
}
// Initializes params required for pack bitstream tile.
static void init_tile_pack_bs_params(AV1_COMP *const cpi, uint8_t *const dst,
struct aom_write_bit_buffer *saved_wb,
PackBSParams *const pack_bs_params_arr,
uint8_t obu_extn_header) {
MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
AV1_COMMON *const cm = &cpi->common;
const CommonTileParams *const tiles = &cm->tiles;
const int num_tiles = tiles->cols * tiles->rows;
// Fixed size tile groups for the moment
const int num_tg_hdrs = cpi->num_tg;
// Tile group size in terms of number of tiles.
const int tg_size_in_tiles = (num_tiles + num_tg_hdrs - 1) / num_tg_hdrs;
uint8_t *tile_dst = dst;
uint8_t *tile_data_curr = dst;
// Max tile group count can not be more than MAX_TILES.
int tg_size_mi[MAX_TILES] = { 0 }; // Size of tile group in mi units
int tile_idx;
int tg_idx = 0;
int tile_count_in_tg = 0;
int new_tg = 1;
// Populate pack bitstream params of all tiles.
for (tile_idx = 0; tile_idx < num_tiles; tile_idx++) {
const TileInfo *const tile_info = &cpi->tile_data[tile_idx].tile_info;
PackBSParams *const pack_bs_params = &pack_bs_params_arr[tile_idx];
// Calculate tile size in mi units.
const int tile_size_mi = (tile_info->mi_col_end - tile_info->mi_col_start) *
(tile_info->mi_row_end - tile_info->mi_row_start);
int is_last_tile_in_tg = 0;
tile_count_in_tg++;
if (tile_count_in_tg == tg_size_in_tiles || tile_idx == (num_tiles - 1))
is_last_tile_in_tg = 1;
// Populate pack bitstream params of this tile.
pack_bs_params->curr_tg_hdr_size = 0;
pack_bs_params->obu_extn_header = obu_extn_header;
pack_bs_params->saved_wb = saved_wb;
pack_bs_params->obu_header_size = 0;
pack_bs_params->is_last_tile_in_tg = is_last_tile_in_tg;
pack_bs_params->new_tg = new_tg;
pack_bs_params->tile_col = tile_info->tile_col;
pack_bs_params->tile_row = tile_info->tile_row;
pack_bs_params->tile_size_mi = tile_size_mi;
tg_size_mi[tg_idx] += tile_size_mi;
if (new_tg) new_tg = 0;
if (is_last_tile_in_tg) {
tile_count_in_tg = 0;
new_tg = 1;
tg_idx++;
}
}
assert(cpi->available_bs_size > 0);
size_t tg_buf_size[MAX_TILES] = { 0 };
size_t max_buf_size = cpi->available_bs_size;
size_t remain_buf_size = max_buf_size;
const int frame_size_mi = cm->mi_params.mi_rows * cm->mi_params.mi_cols;
tile_idx = 0;
// Prepare obu, tile group and frame header of each tile group.
for (tg_idx = 0; tg_idx < cpi->num_tg; tg_idx++) {
PackBSParams *const pack_bs_params = &pack_bs_params_arr[tile_idx];
int is_last_tg = tg_idx == cpi->num_tg - 1;
// Prorate bitstream buffer size based on tile group size and available
// buffer size. This buffer will be used to store headers and tile data.
tg_buf_size[tg_idx] =
get_bs_chunk_size(tg_size_mi[tg_idx], frame_size_mi, &remain_buf_size,
max_buf_size, is_last_tg);
pack_bs_params->dst = tile_dst;
pack_bs_params->tile_data_curr = tile_dst;
// Write obu, tile group and frame header at first tile in the tile
// group.
av1_write_obu_tg_tile_headers(cpi, xd, pack_bs_params, tile_idx);
tile_dst += tg_buf_size[tg_idx];
// Exclude headers from tile group buffer size.
tg_buf_size[tg_idx] -= pack_bs_params->curr_tg_hdr_size;
tile_idx += tg_size_in_tiles;
}
tg_idx = 0;
// Calculate bitstream buffer size of each tile in the tile group.
for (tile_idx = 0; tile_idx < num_tiles; tile_idx++) {
PackBSParams *const pack_bs_params = &pack_bs_params_arr[tile_idx];
if (pack_bs_params->new_tg) {
max_buf_size = tg_buf_size[tg_idx];
remain_buf_size = max_buf_size;
}
// Prorate bitstream buffer size of this tile based on tile size and
// available buffer size. For this proration, header size is not accounted.
const size_t tile_buf_size = get_bs_chunk_size(
pack_bs_params->tile_size_mi, tg_size_mi[tg_idx], &remain_buf_size,
max_buf_size, pack_bs_params->is_last_tile_in_tg);
pack_bs_params->tile_buf_size = tile_buf_size;
// Update base address of bitstream buffer for tile and tile group.
if (pack_bs_params->new_tg) {
tile_dst = pack_bs_params->dst;
tile_data_curr = pack_bs_params->tile_data_curr;
// Account header size in first tile of a tile group.
pack_bs_params->tile_buf_size += pack_bs_params->curr_tg_hdr_size;
} else {
pack_bs_params->dst = tile_dst;
pack_bs_params->tile_data_curr = tile_data_curr;
}
if (pack_bs_params->is_last_tile_in_tg) tg_idx++;
tile_dst += pack_bs_params->tile_buf_size;
}
}
// Worker hook function of pack bitsteam multithreading.
static int pack_bs_worker_hook(void *arg1, void *arg2) {
EncWorkerData *const thread_data = (EncWorkerData *)arg1;
PackBSParams *const pack_bs_params = (PackBSParams *)arg2;
AV1_COMP *const cpi = thread_data->cpi;
AV1_COMMON *const cm = &cpi->common;
AV1EncPackBSSync *const pack_bs_sync = &cpi->mt_info.pack_bs_sync;
const CommonTileParams *const tiles = &cm->tiles;
const int num_tiles = tiles->cols * tiles->rows;
while (1) {
#if CONFIG_MULTITHREAD
pthread_mutex_lock(pack_bs_sync->mutex_);
#endif
const int tile_idx = get_next_pack_bs_tile_idx(pack_bs_sync, num_tiles);
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(pack_bs_sync->mutex_);
#endif
if (tile_idx == -1) break;
TileDataEnc *this_tile = &cpi->tile_data[tile_idx];
thread_data->td->mb.e_mbd.tile_ctx = &this_tile->tctx;
av1_pack_tile_info(cpi, thread_data->td, &pack_bs_params[tile_idx]);
}
return 1;
}
// Prepares thread data and workers of pack bitsteam multithreading.
static void prepare_pack_bs_workers(AV1_COMP *const cpi,
PackBSParams *const pack_bs_params,
AVxWorkerHook hook, const int num_workers) {
MultiThreadInfo *const mt_info = &cpi->mt_info;
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *worker = &mt_info->workers[i];
EncWorkerData *const thread_data = &mt_info->tile_thr_data[i];
if (i == 0) {
thread_data->td = &cpi->td;
#if !CONFIG_FRAME_PARALLEL_ENCODE
}
#else
} else {
thread_data->td = thread_data->original_td;
}
#endif // CONFIG_FRAME_PARALLEL_ENCODE
if (thread_data->td != &cpi->td) thread_data->td->mb = cpi->td.mb;
thread_data->cpi = cpi;
thread_data->start = i;
thread_data->thread_id = i;
av1_reset_pack_bs_thread_data(thread_data->td);
worker->hook = hook;
worker->data1 = thread_data;
worker->data2 = pack_bs_params;
}
AV1_COMMON *const cm = &cpi->common;
AV1EncPackBSSync *const pack_bs_sync = &mt_info->pack_bs_sync;
const uint16_t num_tiles = cm->tiles.rows * cm->tiles.cols;
#if CONFIG_MULTITHREAD
if (pack_bs_sync->mutex_ == NULL) {
CHECK_MEM_ERROR(cm, pack_bs_sync->mutex_,
aom_malloc(sizeof(*pack_bs_sync->mutex_)));
if (pack_bs_sync->mutex_) pthread_mutex_init(pack_bs_sync->mutex_, NULL);
}
#endif
pack_bs_sync->next_job_idx = 0;
PackBSTileOrder *const pack_bs_tile_order = pack_bs_sync->pack_bs_tile_order;
// Reset tile order data of pack bitstream
av1_zero_array(pack_bs_tile_order, num_tiles);
// Populate pack bitstream tile order structure
for (uint16_t tile_idx = 0; tile_idx < num_tiles; tile_idx++) {
pack_bs_tile_order[tile_idx].abs_sum_level =
cpi->tile_data[tile_idx].abs_sum_level;
pack_bs_tile_order[tile_idx].tile_idx = tile_idx;
}
// Sort tiles in descending order based on tile area.
qsort(pack_bs_tile_order, num_tiles, sizeof(*pack_bs_tile_order),
compare_tile_order);
}
// Accumulates data after pack bitsteam processing.
static void accumulate_pack_bs_data(
AV1_COMP *const cpi, const PackBSParams *const pack_bs_params_arr,
uint8_t *const dst, uint32_t *total_size, const FrameHeaderInfo *fh_info,
int *const largest_tile_id, unsigned int *max_tile_size,
uint32_t *const obu_header_size, uint8_t **tile_data_start,
const int num_workers) {
const AV1_COMMON *const cm = &cpi->common;
const CommonTileParams *const tiles = &cm->tiles;
const int tile_count = tiles->cols * tiles->rows;
// Fixed size tile groups for the moment
size_t curr_tg_data_size = 0;
int is_first_tg = 1;
uint8_t *curr_tg_start = dst;
size_t src_offset = 0;
size_t dst_offset = 0;
for (int tile_idx = 0; tile_idx < tile_count; tile_idx++) {
// PackBSParams stores all parameters required to pack tile and header
// info.
const PackBSParams *const pack_bs_params = &pack_bs_params_arr[tile_idx];
uint32_t tile_size = 0;
if (pack_bs_params->new_tg) {
curr_tg_start = dst + *total_size;
curr_tg_data_size = pack_bs_params->curr_tg_hdr_size;
*tile_data_start += pack_bs_params->curr_tg_hdr_size;
*obu_header_size = pack_bs_params->obu_header_size;
}
curr_tg_data_size +=
pack_bs_params->buf.size + (pack_bs_params->is_last_tile_in_tg ? 0 : 4);
if (pack_bs_params->buf.size > *max_tile_size) {
*largest_tile_id = tile_idx;
*max_tile_size = (unsigned int)pack_bs_params->buf.size;
}
tile_size +=
(uint32_t)pack_bs_params->buf.size + *pack_bs_params->total_size;
// Pack all the chunks of tile bitstreams together
if (tile_idx != 0) memmove(dst + dst_offset, dst + src_offset, tile_size);
if (pack_bs_params->is_last_tile_in_tg)
av1_write_last_tile_info(
cpi, fh_info, pack_bs_params->saved_wb, &curr_tg_data_size,
curr_tg_start, &tile_size, tile_data_start, largest_tile_id,
&is_first_tg, *obu_header_size, pack_bs_params->obu_extn_header);
src_offset += pack_bs_params->tile_buf_size;
dst_offset += tile_size;
*total_size += tile_size;
}
// Accumulate thread data
MultiThreadInfo *const mt_info = &cpi->mt_info;
for (int idx = num_workers - 1; idx >= 0; idx--) {
ThreadData const *td = mt_info->tile_thr_data[idx].td;
av1_accumulate_pack_bs_thread_data(cpi, td);
}
}
void av1_write_tile_obu_mt(
AV1_COMP *const cpi, uint8_t *const dst, uint32_t *total_size,
struct aom_write_bit_buffer *saved_wb, uint8_t obu_extn_header,
const FrameHeaderInfo *fh_info, int *const largest_tile_id,
unsigned int *max_tile_size, uint32_t *const obu_header_size,
uint8_t **tile_data_start, const int num_workers) {
MultiThreadInfo *const mt_info = &cpi->mt_info;
PackBSParams pack_bs_params[MAX_TILES];
uint32_t tile_size[MAX_TILES] = { 0 };
for (int tile_idx = 0; tile_idx < MAX_TILES; tile_idx++)
pack_bs_params[tile_idx].total_size = &tile_size[tile_idx];
init_tile_pack_bs_params(cpi, dst, saved_wb, pack_bs_params, obu_extn_header);
prepare_pack_bs_workers(cpi, pack_bs_params, pack_bs_worker_hook,
num_workers);
launch_workers(mt_info, num_workers);
sync_enc_workers(mt_info, &cpi->common, num_workers);
accumulate_pack_bs_data(cpi, pack_bs_params, dst, total_size, fh_info,
largest_tile_id, max_tile_size, obu_header_size,
tile_data_start, num_workers);
}
// Deallocate memory for CDEF search multi-thread synchronization.
void av1_cdef_mt_dealloc(AV1CdefSync *cdef_sync) {
(void)cdef_sync;
assert(cdef_sync != NULL);
#if CONFIG_MULTITHREAD
if (cdef_sync->mutex_ != NULL) {
pthread_mutex_destroy(cdef_sync->mutex_);
aom_free(cdef_sync->mutex_);
}
#endif // CONFIG_MULTITHREAD
}
// Updates the row and column indices of the next job to be processed.
// Also updates end_of_frame flag when the processing of all blocks is complete.
static void update_next_job_info(AV1CdefSync *cdef_sync, int nvfb, int nhfb) {
cdef_sync->fbc++;
if (cdef_sync->fbc == nhfb) {
cdef_sync->fbr++;
if (cdef_sync->fbr == nvfb) {
cdef_sync->end_of_frame = 1;
} else {
cdef_sync->fbc = 0;
}
}
}
// Initializes cdef_sync parameters.
static AOM_INLINE void cdef_reset_job_info(AV1CdefSync *cdef_sync) {
#if CONFIG_MULTITHREAD
if (cdef_sync->mutex_) pthread_mutex_init(cdef_sync->mutex_, NULL);
#endif // CONFIG_MULTITHREAD
cdef_sync->end_of_frame = 0;
cdef_sync->fbr = 0;
cdef_sync->fbc = 0;
}
// Checks if a job is available. If job is available,
// populates next job information and returns 1, else returns 0.
static AOM_INLINE int cdef_get_next_job(AV1CdefSync *cdef_sync,
CdefSearchCtx *cdef_search_ctx,
int *cur_fbr, int *cur_fbc,
int *sb_count) {
#if CONFIG_MULTITHREAD
pthread_mutex_lock(cdef_sync->mutex_);
#endif // CONFIG_MULTITHREAD
int do_next_block = 0;
const int nvfb = cdef_search_ctx->nvfb;
const int nhfb = cdef_search_ctx->nhfb;
// If a block is skip, do not process the block and
// check the skip condition for the next block.
while ((!cdef_sync->end_of_frame) &&
(cdef_sb_skip(cdef_search_ctx->mi_params, cdef_sync->fbr,
cdef_sync->fbc))) {
update_next_job_info(cdef_sync, nvfb, nhfb);
}
// Populates information needed for current job and update the row,
// column indices of the next block to be processed.
if (cdef_sync->end_of_frame == 0) {
do_next_block = 1;
*cur_fbr = cdef_sync->fbr;
*cur_fbc = cdef_sync->fbc;
*sb_count = cdef_search_ctx->sb_count;
cdef_search_ctx->sb_count++;
update_next_job_info(cdef_sync, nvfb, nhfb);
}
#if CONFIG_MULTITHREAD
pthread_mutex_unlock(cdef_sync->mutex_);
#endif // CONFIG_MULTITHREAD
return do_next_block;
}
// Hook function for each thread in CDEF search multi-threading.
static int cdef_filter_block_worker_hook(void *arg1, void *arg2) {
AV1CdefSync *const cdef_sync = (AV1CdefSync *)arg1;
CdefSearchCtx *cdef_search_ctx = (CdefSearchCtx *)arg2;
int cur_fbr, cur_fbc, sb_count;
while (cdef_get_next_job(cdef_sync, cdef_search_ctx, &cur_fbr, &cur_fbc,
&sb_count)) {
av1_cdef_mse_calc_block(cdef_search_ctx, cur_fbr, cur_fbc, sb_count);
}
return 1;
}
// Assigns CDEF search hook function and thread data to each worker.
static void prepare_cdef_workers(MultiThreadInfo *mt_info,
CdefSearchCtx *cdef_search_ctx,
AVxWorkerHook hook, int num_workers) {
for (int i = num_workers - 1; i >= 0; i--) {
AVxWorker *worker = &mt_info->workers[i];
worker->hook = hook;
worker->data1 = &mt_info->cdef_sync;
worker->data2 = cdef_search_ctx;
}
}
// Implements multi-threading for CDEF search.
void av1_cdef_mse_calc_frame_mt(AV1_COMMON *cm, MultiThreadInfo *mt_info,
CdefSearchCtx *cdef_search_ctx) {
AV1CdefSync *cdef_sync = &mt_info->cdef_sync;
const int num_workers = mt_info->num_mod_workers[MOD_CDEF_SEARCH];
cdef_reset_job_info(cdef_sync);
prepare_cdef_workers(mt_info, cdef_search_ctx, cdef_filter_block_worker_hook,
num_workers);
launch_workers(mt_info, num_workers);
sync_enc_workers(mt_info, cm, num_workers);
}
// Computes num_workers for temporal filter multi-threading.
static AOM_INLINE int compute_num_tf_workers(AV1_COMP *cpi) {
// For single-pass encode, using no. of workers as per tf block size was not
// found to improve speed. Hence the thread assignment for single-pass encode
// is kept based on compute_num_enc_workers().
if (cpi->oxcf.pass < AOM_RC_SECOND_PASS)
return (av1_compute_num_enc_workers(cpi, cpi->oxcf.max_threads));
if (cpi->oxcf.max_threads <= 1) return 1;
const int frame_height = cpi->common.height;
const BLOCK_SIZE block_size = TF_BLOCK_SIZE;
const int mb_height = block_size_high[block_size];
const int mb_rows = get_num_blocks(frame_height, mb_height);
return AOMMIN(cpi->oxcf.max_threads, mb_rows);
}
// Computes num_workers for tpl multi-threading.
static AOM_INLINE int compute_num_tpl_workers(AV1_COMP *cpi) {
return av1_compute_num_enc_workers(cpi, cpi->oxcf.max_threads);
}
// Computes num_workers for loop filter multi-threading.
static AOM_INLINE int compute_num_lf_workers(AV1_COMP *cpi) {
return av1_compute_num_enc_workers(cpi, cpi->oxcf.max_threads);
}
// Computes num_workers for cdef multi-threading.
static AOM_INLINE int compute_num_cdef_workers(AV1_COMP *cpi) {
return av1_compute_num_enc_workers(cpi, cpi->oxcf.max_threads);
}
// Computes num_workers for loop-restoration multi-threading.
static AOM_INLINE int compute_num_lr_workers(AV1_COMP *cpi) {
return av1_compute_num_enc_workers(cpi, cpi->oxcf.max_threads);
}
// Computes num_workers for pack bitstream multi-threading.
static AOM_INLINE int compute_num_pack_bs_workers(AV1_COMP *cpi) {
if (cpi->oxcf.max_threads <= 1) return 1;
return compute_num_enc_tile_mt_workers(&cpi->common, cpi->oxcf.max_threads);
}
int compute_num_mod_workers(AV1_COMP *cpi, MULTI_THREADED_MODULES mod_name) {
int num_mod_workers = 0;
switch (mod_name) {
case MOD_FP:
if (cpi->oxcf.pass >= AOM_RC_SECOND_PASS)
num_mod_workers = 0;
else
num_mod_workers =
av1_compute_num_enc_workers(cpi, cpi->oxcf.max_threads);
break;
case MOD_TF: num_mod_workers = compute_num_tf_workers(cpi); break;
case MOD_TPL: num_mod_workers = compute_num_tpl_workers(cpi); break;
case MOD_GME: num_mod_workers = 1; break;
case MOD_ENC:
num_mod_workers = av1_compute_num_enc_workers(cpi, cpi->oxcf.max_threads);
break;
case MOD_LPF: num_mod_workers = compute_num_lf_workers(cpi); break;
case MOD_CDEF_SEARCH:
num_mod_workers = compute_num_cdef_workers(cpi);
break;
case MOD_CDEF: num_mod_workers = compute_num_cdef_workers(cpi); break;
case MOD_LR: num_mod_workers = compute_num_lr_workers(cpi); break;
case MOD_PACK_BS: num_mod_workers = compute_num_pack_bs_workers(cpi); break;
case MOD_FRAME_ENC:
num_mod_workers = cpi->ppi->p_mt_info.num_mod_workers[MOD_FRAME_ENC];
break;
default: assert(0); break;
}
return (num_mod_workers);
}
// Computes the number of workers for each MT modules in the encoder
void av1_compute_num_workers_for_mt(AV1_COMP *cpi) {
for (int i = MOD_FP; i < NUM_MT_MODULES; i++)
cpi->ppi->p_mt_info.num_mod_workers[i] =
compute_num_mod_workers(cpi, (MULTI_THREADED_MODULES)i);
}