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
|
/*
* 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 "./aom_config.h"
#include "aom_mem/aom_mem.h"
#include "av1/common/reconinter.h"
#include "av1/decoder/dthread.h"
#include "av1/decoder/decoder.h"
// #define DEBUG_THREAD
// TODO(hkuang): Clean up all the #ifdef in this file.
void av1_frameworker_lock_stats(AVxWorker *const worker) {
#if CONFIG_MULTITHREAD
FrameWorkerData *const worker_data = worker->data1;
pthread_mutex_lock(&worker_data->stats_mutex);
#else
(void)worker;
#endif
}
void av1_frameworker_unlock_stats(AVxWorker *const worker) {
#if CONFIG_MULTITHREAD
FrameWorkerData *const worker_data = worker->data1;
pthread_mutex_unlock(&worker_data->stats_mutex);
#else
(void)worker;
#endif
}
void av1_frameworker_signal_stats(AVxWorker *const worker) {
#if CONFIG_MULTITHREAD
FrameWorkerData *const worker_data = worker->data1;
// TODO(hkuang): Fix the pthread_cond_broadcast in windows wrapper.
#if defined(_WIN32) && !HAVE_PTHREAD_H
pthread_cond_signal(&worker_data->stats_cond);
#else
pthread_cond_broadcast(&worker_data->stats_cond);
#endif
#else
(void)worker;
#endif
}
// This macro prevents thread_sanitizer from reporting known concurrent writes.
#if defined(__has_feature)
#if __has_feature(thread_sanitizer)
#define BUILDING_WITH_TSAN
#endif
#endif
// TODO(hkuang): Remove worker parameter as it is only used in debug code.
void av1_frameworker_wait(AVxWorker *const worker, RefCntBuffer *const ref_buf,
int row) {
#if CONFIG_MULTITHREAD
if (!ref_buf) return;
#ifndef BUILDING_WITH_TSAN
// The following line of code will get harmless tsan error but it is the key
// to get best performance.
if (ref_buf->row >= row && ref_buf->buf.corrupted != 1) return;
#endif
{
// Find the worker thread that owns the reference frame. If the reference
// frame has been fully decoded, it may not have owner.
AVxWorker *const ref_worker = ref_buf->frame_worker_owner;
FrameWorkerData *const ref_worker_data =
(FrameWorkerData *)ref_worker->data1;
const AV1Decoder *const pbi = ref_worker_data->pbi;
#ifdef DEBUG_THREAD
{
FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
printf("%d %p worker is waiting for %d %p worker (%d) ref %d \r\n",
worker_data->worker_id, worker, ref_worker_data->worker_id,
ref_buf->frame_worker_owner, row, ref_buf->row);
}
#endif
av1_frameworker_lock_stats(ref_worker);
while (ref_buf->row < row && pbi->cur_buf == ref_buf &&
ref_buf->buf.corrupted != 1) {
pthread_cond_wait(&ref_worker_data->stats_cond,
&ref_worker_data->stats_mutex);
}
if (ref_buf->buf.corrupted == 1) {
FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
av1_frameworker_unlock_stats(ref_worker);
aom_internal_error(&worker_data->pbi->common.error,
AOM_CODEC_CORRUPT_FRAME,
"Worker %p failed to decode frame", worker);
}
av1_frameworker_unlock_stats(ref_worker);
}
#else
(void)worker;
(void)ref_buf;
(void)row;
(void)ref_buf;
#endif // CONFIG_MULTITHREAD
}
void av1_frameworker_broadcast(RefCntBuffer *const buf, int row) {
#if CONFIG_MULTITHREAD
AVxWorker *worker = buf->frame_worker_owner;
#ifdef DEBUG_THREAD
{
FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
printf("%d %p worker decode to (%d) \r\n", worker_data->worker_id,
buf->frame_worker_owner, row);
}
#endif
av1_frameworker_lock_stats(worker);
buf->row = row;
av1_frameworker_signal_stats(worker);
av1_frameworker_unlock_stats(worker);
#else
(void)buf;
(void)row;
#endif // CONFIG_MULTITHREAD
}
void av1_frameworker_copy_context(AVxWorker *const dst_worker,
AVxWorker *const src_worker) {
#if CONFIG_MULTITHREAD
FrameWorkerData *const src_worker_data = (FrameWorkerData *)src_worker->data1;
FrameWorkerData *const dst_worker_data = (FrameWorkerData *)dst_worker->data1;
AV1_COMMON *const src_cm = &src_worker_data->pbi->common;
AV1_COMMON *const dst_cm = &dst_worker_data->pbi->common;
int i;
// Wait until source frame's context is ready.
av1_frameworker_lock_stats(src_worker);
while (!src_worker_data->frame_context_ready) {
pthread_cond_wait(&src_worker_data->stats_cond,
&src_worker_data->stats_mutex);
}
dst_cm->last_frame_seg_map = src_cm->seg.enabled
? src_cm->current_frame_seg_map
: src_cm->last_frame_seg_map;
dst_worker_data->pbi->need_resync = src_worker_data->pbi->need_resync;
av1_frameworker_unlock_stats(src_worker);
dst_cm->bit_depth = src_cm->bit_depth;
#if CONFIG_HIGHBITDEPTH
dst_cm->use_highbitdepth = src_cm->use_highbitdepth;
#endif
#if CONFIG_EXT_REFS
// TODO(zoeliu): To handle parallel decoding
#endif // CONFIG_EXT_REFS
dst_cm->prev_frame =
src_cm->show_existing_frame ? src_cm->prev_frame : src_cm->cur_frame;
dst_cm->last_width =
!src_cm->show_existing_frame ? src_cm->width : src_cm->last_width;
dst_cm->last_height =
!src_cm->show_existing_frame ? src_cm->height : src_cm->last_height;
dst_cm->subsampling_x = src_cm->subsampling_x;
dst_cm->subsampling_y = src_cm->subsampling_y;
dst_cm->frame_type = src_cm->frame_type;
dst_cm->last_show_frame = !src_cm->show_existing_frame
? src_cm->show_frame
: src_cm->last_show_frame;
for (i = 0; i < REF_FRAMES; ++i)
dst_cm->ref_frame_map[i] = src_cm->next_ref_frame_map[i];
memcpy(dst_cm->lf_info.lfthr, src_cm->lf_info.lfthr,
(MAX_LOOP_FILTER + 1) * sizeof(loop_filter_thresh));
dst_cm->lf.last_sharpness_level = src_cm->lf.sharpness_level;
dst_cm->lf.filter_level = src_cm->lf.filter_level;
memcpy(dst_cm->lf.ref_deltas, src_cm->lf.ref_deltas, TOTAL_REFS_PER_FRAME);
memcpy(dst_cm->lf.mode_deltas, src_cm->lf.mode_deltas, MAX_MODE_LF_DELTAS);
dst_cm->seg = src_cm->seg;
memcpy(dst_cm->frame_contexts, src_cm->frame_contexts,
FRAME_CONTEXTS * sizeof(dst_cm->frame_contexts[0]));
#else
(void)dst_worker;
(void)src_worker;
#endif // CONFIG_MULTITHREAD
}
|
