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/*
* 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;
#if CONFIG_LOOPFILTER_LEVEL
dst_cm->lf.filter_level[0] = src_cm->lf.filter_level[0];
dst_cm->lf.filter_level[1] = src_cm->lf.filter_level[1];
#else
dst_cm->lf.filter_level = src_cm->lf.filter_level;
#endif
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
}
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