summaryrefslogtreecommitdiffstats
path: root/third_party/aom/av1/encoder/ethread.c
blob: edc9b1d61e35468ab9ab0ed7a34d44c4a2054cb5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
/*
 * 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];

#if CONFIG_GLOBAL_MOTION
  for (int i = 0; i < TOTAL_REFS_PER_FRAME; i++)
    td->rd_counts.global_motion_used[i] +=
        td_t->rd_counts.global_motion_used[i];
#endif  // CONFIG_GLOBAL_MOTION

  td->rd_counts.compound_ref_used_flag |=
      td_t->rd_counts.compound_ref_used_flag;
  td->rd_counts.single_ref_used_flag |= td_t->rd_counts.single_ref_used_flag;
}

static int enc_worker_hook(EncWorkerData *const thread_data, void *unused) {
  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 0;
}

void av1_encode_tiles_mt(AV1_COMP *cpi) {
  AV1_COMMON *const cm = &cpi->common;
  const int tile_cols = cm->tile_cols;
  const AVxWorkerInterface *const winterface = aom_get_worker_interface();
  const int num_workers = AOMMIN(cpi->oxcf.max_threads, tile_cols);
  int i;

  av1_init_tile_data(cpi);

  // Only run once to create threads and allocate thread data.
  if (cpi->num_workers == 0) {
    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 (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.
#if !CONFIG_CB4X4
        thread_data->td->leaf_tree = NULL;
#endif
        thread_data->td->pc_tree = NULL;
        av1_setup_pc_tree(cm, thread_data->td);

#if CONFIG_MOTION_VAR
#if CONFIG_HIGHBITDEPTH
        int buf_scaler = 2;
#else
        int buf_scaler = 1;
#endif
        CHECK_MEM_ERROR(cm, thread_data->td->above_pred_buf,
                        (uint8_t *)aom_memalign(
                            16,
                            buf_scaler * 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,
                            buf_scaler * 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)));
        CHECK_MEM_ERROR(
            cm, thread_data->td->mask_buf,
            (int32_t *)aom_memalign(
                16, MAX_SB_SQUARE * sizeof(*thread_data->td->mask_buf)));
#endif
        // 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)));

        // 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);
    }
  }

  for (i = 0; i < num_workers; i++) {
    AVxWorker *const worker = &cpi->workers[i];
    EncWorkerData *thread_data;

    worker->hook = (AVxWorkerHook)enc_worker_hook;
    worker->data1 = &cpi->tile_thr_data[i];
    worker->data2 = NULL;
    thread_data = (EncWorkerData *)worker->data1;

    // 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;
#if CONFIG_MOTION_VAR
      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;
      thread_data->td->mb.mask_buf = thread_data->td->mask_buf;
#endif
    }
    if (thread_data->td->counts != &cpi->common.counts) {
      memcpy(thread_data->td->counts, &cpi->common.counts,
             sizeof(cpi->common.counts));
    }

    if (i < num_workers - 1)
      thread_data->td->mb.palette_buffer = thread_data->td->palette_buffer;
  }

  // Encode a frame
  for (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);
  }

  // Encoding ends.
  for (i = 0; i < num_workers; i++) {
    AVxWorker *const worker = &cpi->workers[i];
    winterface->sync(worker);
  }

  for (i = 0; i < num_workers; i++) {
    AVxWorker *const worker = &cpi->workers[i];
    EncWorkerData *const thread_data = (EncWorkerData *)worker->data1;

    // Accumulate counters.
    if (i < cpi->num_workers - 1) {
      av1_accumulate_frame_counts(&cm->counts, thread_data->td->counts);
      accumulate_rd_opt(&cpi->td, thread_data->td);
#if CONFIG_VAR_TX
      cpi->td.mb.txb_split_count += thread_data->td->mb.txb_split_count;
#endif
    }
  }
}