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-rw-r--r--third_party/aom/av1/encoder/ethread.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/ethread.c b/third_party/aom/av1/encoder/ethread.c
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index 000000000..e8ac30bb5
--- /dev/null
+++ b/third_party/aom/av1/encoder/ethread.c
@@ -0,0 +1,261 @@
+/*
+ * 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/encoder/encodeframe.h"
+#include "av1/encoder/encoder.h"
+#include "av1/encoder/ethread.h"
+#include "aom_dsp/aom_dsp_common.h"
+
+static 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];
+
+ for (int i = 0; i < REF_FRAMES; i++)
+ td->rd_counts.global_motion_used[i] +=
+ td_t->rd_counts.global_motion_used[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;
+}
+
+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->tile_cols;
+ const int tile_rows = cm->tile_rows;
+ int t;
+
+ (void)unused;
+
+ for (t = thread_data->start; t < tile_rows * tile_cols;
+ t += cpi->num_workers) {
+ int tile_row = t / tile_cols;
+ int tile_col = t % tile_cols;
+
+ av1_encode_tile(cpi, thread_data->td, tile_row, tile_col);
+ }
+
+ return 1;
+}
+
+static void create_enc_workers(AV1_COMP *cpi, int num_workers) {
+ AV1_COMMON *const cm = &cpi->common;
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+
+ CHECK_MEM_ERROR(cm, cpi->workers,
+ aom_malloc(num_workers * sizeof(*cpi->workers)));
+
+ CHECK_MEM_ERROR(cm, cpi->tile_thr_data,
+ aom_calloc(num_workers, sizeof(*cpi->tile_thr_data)));
+
+ for (int i = 0; i < num_workers; i++) {
+ AVxWorker *const worker = &cpi->workers[i];
+ EncWorkerData *const thread_data = &cpi->tile_thr_data[i];
+
+ ++cpi->num_workers;
+ winterface->init(worker);
+
+ thread_data->cpi = cpi;
+
+ if (i < num_workers - 1) {
+ // Allocate thread data.
+ CHECK_MEM_ERROR(cm, thread_data->td,
+ aom_memalign(32, sizeof(*thread_data->td)));
+ av1_zero(*thread_data->td);
+
+ // Set up pc_tree.
+ thread_data->td->pc_tree = NULL;
+ av1_setup_pc_tree(cm, thread_data->td);
+
+ CHECK_MEM_ERROR(cm, thread_data->td->above_pred_buf,
+ (uint8_t *)aom_memalign(
+ 16, MAX_MB_PLANE * MAX_SB_SQUARE *
+ sizeof(*thread_data->td->above_pred_buf)));
+ CHECK_MEM_ERROR(cm, thread_data->td->left_pred_buf,
+ (uint8_t *)aom_memalign(
+ 16, MAX_MB_PLANE * MAX_SB_SQUARE *
+ sizeof(*thread_data->td->left_pred_buf)));
+
+ CHECK_MEM_ERROR(
+ cm, thread_data->td->wsrc_buf,
+ (int32_t *)aom_memalign(
+ 16, MAX_SB_SQUARE * sizeof(*thread_data->td->wsrc_buf)));
+
+ for (int x = 0; x < 2; x++)
+ for (int y = 0; y < 2; y++)
+ CHECK_MEM_ERROR(
+ cm, 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])));
+
+ CHECK_MEM_ERROR(
+ cm, thread_data->td->mask_buf,
+ (int32_t *)aom_memalign(
+ 16, MAX_SB_SQUARE * sizeof(*thread_data->td->mask_buf)));
+ // Allocate frame counters in thread data.
+ CHECK_MEM_ERROR(cm, thread_data->td->counts,
+ aom_calloc(1, sizeof(*thread_data->td->counts)));
+
+ // Allocate buffers used by palette coding mode.
+ CHECK_MEM_ERROR(
+ cm, thread_data->td->palette_buffer,
+ aom_memalign(16, sizeof(*thread_data->td->palette_buffer)));
+
+ CHECK_MEM_ERROR(
+ cm, thread_data->td->tmp_conv_dst,
+ aom_memalign(32, MAX_SB_SIZE * MAX_SB_SIZE *
+ sizeof(*thread_data->td->tmp_conv_dst)));
+ for (int j = 0; j < 2; ++j) {
+ CHECK_MEM_ERROR(
+ cm, thread_data->td->tmp_obmc_bufs[j],
+ aom_memalign(16, 2 * MAX_MB_PLANE * MAX_SB_SQUARE *
+ sizeof(*thread_data->td->tmp_obmc_bufs[j])));
+ }
+
+ // Create threads
+ if (!winterface->reset(worker))
+ aom_internal_error(&cm->error, AOM_CODEC_ERROR,
+ "Tile encoder thread creation failed");
+ } else {
+ // Main thread acts as a worker and uses the thread data in cpi.
+ thread_data->td = &cpi->td;
+ }
+ winterface->sync(worker);
+ }
+}
+
+static void launch_enc_workers(AV1_COMP *cpi, int num_workers) {
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+ // Encode a frame
+ for (int i = 0; i < num_workers; i++) {
+ AVxWorker *const worker = &cpi->workers[i];
+ EncWorkerData *const thread_data = (EncWorkerData *)worker->data1;
+
+ // Set the starting tile for each thread.
+ thread_data->start = i;
+
+ if (i == cpi->num_workers - 1)
+ winterface->execute(worker);
+ else
+ winterface->launch(worker);
+ }
+}
+
+static void sync_enc_workers(AV1_COMP *cpi, int num_workers) {
+ const AVxWorkerInterface *const winterface = aom_get_worker_interface();
+
+ // Encoding ends.
+ for (int i = 0; i < num_workers; i++) {
+ AVxWorker *const worker = &cpi->workers[i];
+ winterface->sync(worker);
+ }
+}
+
+static void accumulate_counters_enc_workers(AV1_COMP *cpi, int num_workers) {
+ for (int i = 0; i < num_workers; i++) {
+ AVxWorker *const worker = &cpi->workers[i];
+ EncWorkerData *const thread_data = (EncWorkerData *)worker->data1;
+ cpi->intrabc_used |= thread_data->td->intrabc_used_this_tile;
+ // Accumulate counters.
+ if (i < cpi->num_workers - 1) {
+ av1_accumulate_frame_counts(&cpi->counts, thread_data->td->counts);
+ accumulate_rd_opt(&cpi->td, thread_data->td);
+ cpi->td.mb.txb_split_count += thread_data->td->mb.txb_split_count;
+ }
+ }
+}
+
+static void prepare_enc_workers(AV1_COMP *cpi, AVxWorkerHook hook,
+ int num_workers) {
+ for (int i = 0; i < num_workers; i++) {
+ AVxWorker *const worker = &cpi->workers[i];
+ EncWorkerData *const thread_data = &cpi->tile_thr_data[i];
+
+ worker->hook = hook;
+ worker->data1 = thread_data;
+ worker->data2 = NULL;
+
+ // 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.above_pred_buf = thread_data->td->above_pred_buf;
+ thread_data->td->mb.left_pred_buf = thread_data->td->left_pred_buf;
+ thread_data->td->mb.wsrc_buf = thread_data->td->wsrc_buf;
+ 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.hash_value_buffer[x][y],
+ AOM_BUFFER_SIZE_FOR_BLOCK_HASH *
+ sizeof(*thread_data->td->hash_value_buffer[0][0]));
+ thread_data->td->mb.hash_value_buffer[x][y] =
+ thread_data->td->hash_value_buffer[x][y];
+ }
+ }
+ thread_data->td->mb.mask_buf = thread_data->td->mask_buf;
+ }
+ if (thread_data->td->counts != &cpi->counts) {
+ memcpy(thread_data->td->counts, &cpi->counts, sizeof(cpi->counts));
+ }
+
+ if (i < num_workers - 1) {
+ thread_data->td->mb.palette_buffer = thread_data->td->palette_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_obmc_bufs[j] =
+ thread_data->td->tmp_obmc_bufs[j];
+ }
+
+ 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_obmc_bufs[j];
+ }
+ }
+ }
+}
+
+void av1_encode_tiles_mt(AV1_COMP *cpi) {
+ AV1_COMMON *const cm = &cpi->common;
+ const int tile_cols = cm->tile_cols;
+ const int tile_rows = cm->tile_rows;
+ int num_workers = AOMMIN(cpi->oxcf.max_threads, tile_cols * tile_rows);
+
+ if (cpi->tile_data == NULL || cpi->allocated_tiles < tile_cols * tile_rows)
+ av1_alloc_tile_data(cpi);
+
+ av1_init_tile_data(cpi);
+ // Only run once to create threads and allocate thread data.
+ if (cpi->num_workers == 0) {
+ create_enc_workers(cpi, num_workers);
+ } else {
+ num_workers = AOMMIN(num_workers, cpi->num_workers);
+ }
+ prepare_enc_workers(cpi, enc_worker_hook, num_workers);
+ launch_enc_workers(cpi, num_workers);
+ sync_enc_workers(cpi, 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];
+}
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