180 строки
5.7 KiB
C
180 строки
5.7 KiB
C
/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vp9/encoder/vp9_encodeframe.h"
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#include "vp9/encoder/vp9_encoder.h"
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#include "vp9/encoder/vp9_ethread.h"
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static void accumulate_rd_opt(ThreadData *td, ThreadData *td_t) {
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int i, j, k, l, m, n;
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for (i = 0; i < REFERENCE_MODES; i++)
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td->rd_counts.comp_pred_diff[i] += td_t->rd_counts.comp_pred_diff[i];
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for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; i++)
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td->rd_counts.filter_diff[i] += td_t->rd_counts.filter_diff[i];
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for (i = 0; i < TX_MODES; i++)
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td->rd_counts.tx_select_diff[i] += td_t->rd_counts.tx_select_diff[i];
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for (i = 0; i < TX_SIZES; i++)
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for (j = 0; j < PLANE_TYPES; j++)
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for (k = 0; k < REF_TYPES; k++)
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for (l = 0; l < COEF_BANDS; l++)
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for (m = 0; m < COEFF_CONTEXTS; m++)
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for (n = 0; n < ENTROPY_TOKENS; n++)
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td->rd_counts.coef_counts[i][j][k][l][m][n] +=
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td_t->rd_counts.coef_counts[i][j][k][l][m][n];
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}
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static int enc_worker_hook(EncWorkerData *const thread_data, void *unused) {
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VP9_COMP *const cpi = thread_data->cpi;
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const VP9_COMMON *const cm = &cpi->common;
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const int tile_cols = 1 << cm->log2_tile_cols;
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const int tile_rows = 1 << cm->log2_tile_rows;
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int t;
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(void) unused;
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for (t = thread_data->start; t < tile_rows * tile_cols;
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t += cpi->num_workers) {
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int tile_row = t / tile_cols;
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int tile_col = t % tile_cols;
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vp9_encode_tile(cpi, thread_data->td, tile_row, tile_col);
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}
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return 0;
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}
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void vp9_encode_tiles_mt(VP9_COMP *cpi) {
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VP9_COMMON *const cm = &cpi->common;
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const int tile_cols = 1 << cm->log2_tile_cols;
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const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
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const int num_workers = MIN(cpi->oxcf.max_threads, tile_cols);
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int i;
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vp9_init_tile_data(cpi);
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// Only run once to create threads and allocate thread data.
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if (cpi->num_workers == 0) {
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CHECK_MEM_ERROR(cm, cpi->workers,
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vpx_malloc(num_workers * sizeof(*cpi->workers)));
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CHECK_MEM_ERROR(cm, cpi->tile_thr_data,
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vpx_calloc(num_workers, sizeof(*cpi->tile_thr_data)));
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for (i = 0; i < num_workers; i++) {
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VP9Worker *const worker = &cpi->workers[i];
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EncWorkerData *thread_data = &cpi->tile_thr_data[i];
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++cpi->num_workers;
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winterface->init(worker);
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if (i < num_workers - 1) {
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thread_data->cpi = cpi;
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// Allocate thread data.
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CHECK_MEM_ERROR(cm, thread_data->td,
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vpx_memalign(32, sizeof(*thread_data->td)));
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vp9_zero(*thread_data->td);
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// Set up pc_tree.
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thread_data->td->leaf_tree = NULL;
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thread_data->td->pc_tree = NULL;
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vp9_setup_pc_tree(cm, thread_data->td);
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// Allocate frame counters in thread data.
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CHECK_MEM_ERROR(cm, thread_data->td->counts,
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vpx_calloc(1, sizeof(*thread_data->td->counts)));
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// Create threads
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if (!winterface->reset(worker))
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vpx_internal_error(&cm->error, VPX_CODEC_ERROR,
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"Tile encoder thread creation failed");
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} else {
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// Main thread acts as a worker and uses the thread data in cpi.
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thread_data->cpi = cpi;
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thread_data->td = &cpi->td;
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}
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winterface->sync(worker);
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}
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}
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for (i = 0; i < num_workers; i++) {
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VP9Worker *const worker = &cpi->workers[i];
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EncWorkerData *thread_data;
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worker->hook = (VP9WorkerHook)enc_worker_hook;
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worker->data1 = &cpi->tile_thr_data[i];
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worker->data2 = NULL;
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thread_data = (EncWorkerData*)worker->data1;
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// Before encoding a frame, copy the thread data from cpi.
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if (thread_data->td != &cpi->td) {
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thread_data->td->mb = cpi->td.mb;
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thread_data->td->rd_counts = cpi->td.rd_counts;
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}
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if (thread_data->td->counts != &cpi->common.counts) {
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vpx_memcpy(thread_data->td->counts, &cpi->common.counts,
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sizeof(cpi->common.counts));
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}
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// Handle use_nonrd_pick_mode case.
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if (cpi->sf.use_nonrd_pick_mode) {
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MACROBLOCK *const x = &thread_data->td->mb;
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MACROBLOCKD *const xd = &x->e_mbd;
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struct macroblock_plane *const p = x->plane;
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struct macroblockd_plane *const pd = xd->plane;
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PICK_MODE_CONTEXT *ctx = &thread_data->td->pc_root->none;
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int j;
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for (j = 0; j < MAX_MB_PLANE; ++j) {
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p[j].coeff = ctx->coeff_pbuf[j][0];
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p[j].qcoeff = ctx->qcoeff_pbuf[j][0];
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pd[j].dqcoeff = ctx->dqcoeff_pbuf[j][0];
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p[j].eobs = ctx->eobs_pbuf[j][0];
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}
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}
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}
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// Encode a frame
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for (i = 0; i < num_workers; i++) {
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VP9Worker *const worker = &cpi->workers[i];
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EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
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// Set the starting tile for each thread.
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thread_data->start = i;
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if (i == num_workers - 1)
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winterface->execute(worker);
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else
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winterface->launch(worker);
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}
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// Encoding ends.
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for (i = 0; i < num_workers; i++) {
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VP9Worker *const worker = &cpi->workers[i];
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winterface->sync(worker);
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}
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for (i = 0; i < num_workers; i++) {
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VP9Worker *const worker = &cpi->workers[i];
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EncWorkerData *const thread_data = (EncWorkerData*)worker->data1;
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// Accumulate counters.
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if (i < num_workers - 1) {
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vp9_accumulate_frame_counts(cm, thread_data->td->counts, 0);
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accumulate_rd_opt(&cpi->td, thread_data->td);
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}
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}
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}
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