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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
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Roy Tam
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dcd9973243
150858 changed files with 23884658 additions and 0 deletions
189
media/libvpx/vp9/decoder/vp9_dthread.c
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189
media/libvpx/vp9/decoder/vp9_dthread.c
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/*
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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 "./vpx_config.h"
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#include "vpx_mem/vpx_mem.h"
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#include "vp9/common/vp9_reconinter.h"
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#include "vp9/decoder/vp9_dthread.h"
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#include "vp9/decoder/vp9_decoder.h"
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// #define DEBUG_THREAD
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// TODO(hkuang): Clean up all the #ifdef in this file.
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void vp9_frameworker_lock_stats(VP9Worker *const worker) {
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#if CONFIG_MULTITHREAD
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FrameWorkerData *const worker_data = worker->data1;
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pthread_mutex_lock(&worker_data->stats_mutex);
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#else
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(void)worker;
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#endif
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}
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void vp9_frameworker_unlock_stats(VP9Worker *const worker) {
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#if CONFIG_MULTITHREAD
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FrameWorkerData *const worker_data = worker->data1;
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pthread_mutex_unlock(&worker_data->stats_mutex);
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#else
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(void)worker;
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#endif
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}
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void vp9_frameworker_signal_stats(VP9Worker *const worker) {
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#if CONFIG_MULTITHREAD
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FrameWorkerData *const worker_data = worker->data1;
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// TODO(hkuang): Fix the pthread_cond_broadcast in windows wrapper.
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#if defined(_WIN32) && !HAVE_PTHREAD_H
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pthread_cond_signal(&worker_data->stats_cond);
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#else
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pthread_cond_broadcast(&worker_data->stats_cond);
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#endif
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#else
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(void)worker;
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#endif
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}
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// This macro prevents thread_sanitizer from reporting known concurrent writes.
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#if defined(__has_feature)
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#if __has_feature(thread_sanitizer)
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#define BUILDING_WITH_TSAN
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#endif
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#endif
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// TODO(hkuang): Remove worker parameter as it is only used in debug code.
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void vp9_frameworker_wait(VP9Worker *const worker, RefCntBuffer *const ref_buf,
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int row) {
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#if CONFIG_MULTITHREAD
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if (!ref_buf)
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return;
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#ifndef BUILDING_WITH_TSAN
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// The following line of code will get harmless tsan error but it is the key
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// to get best performance.
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if (ref_buf->row >= row && ref_buf->buf.corrupted != 1) return;
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#endif
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{
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// Find the worker thread that owns the reference frame. If the reference
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// frame has been fully decoded, it may not have owner.
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VP9Worker *const ref_worker = ref_buf->frame_worker_owner;
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FrameWorkerData *const ref_worker_data =
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(FrameWorkerData *)ref_worker->data1;
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const VP9Decoder *const pbi = ref_worker_data->pbi;
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#ifdef DEBUG_THREAD
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{
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FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
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printf("%d %p worker is waiting for %d %p worker (%d) ref %d \r\n",
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worker_data->worker_id, worker, ref_worker_data->worker_id,
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ref_buf->frame_worker_owner, row, ref_buf->row);
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}
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#endif
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vp9_frameworker_lock_stats(ref_worker);
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while (ref_buf->row < row && pbi->cur_buf == ref_buf &&
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ref_buf->buf.corrupted != 1) {
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pthread_cond_wait(&ref_worker_data->stats_cond,
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&ref_worker_data->stats_mutex);
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}
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if (ref_buf->buf.corrupted == 1) {
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FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
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vp9_frameworker_unlock_stats(ref_worker);
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vpx_internal_error(&worker_data->pbi->common.error,
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VPX_CODEC_CORRUPT_FRAME,
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"Worker %p failed to decode frame", worker);
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}
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vp9_frameworker_unlock_stats(ref_worker);
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}
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#else
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(void)worker;
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(void)ref_buf;
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(void)row;
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(void)ref_buf;
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#endif // CONFIG_MULTITHREAD
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}
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void vp9_frameworker_broadcast(RefCntBuffer *const buf, int row) {
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#if CONFIG_MULTITHREAD
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VP9Worker *worker = buf->frame_worker_owner;
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#ifdef DEBUG_THREAD
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{
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FrameWorkerData *const worker_data = (FrameWorkerData *)worker->data1;
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printf("%d %p worker decode to (%d) \r\n", worker_data->worker_id,
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buf->frame_worker_owner, row);
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}
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#endif
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vp9_frameworker_lock_stats(worker);
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buf->row = row;
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vp9_frameworker_signal_stats(worker);
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vp9_frameworker_unlock_stats(worker);
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#else
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(void)buf;
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(void)row;
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#endif // CONFIG_MULTITHREAD
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}
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void vp9_frameworker_copy_context(VP9Worker *const dst_worker,
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VP9Worker *const src_worker) {
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#if CONFIG_MULTITHREAD
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FrameWorkerData *const src_worker_data = (FrameWorkerData *)src_worker->data1;
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FrameWorkerData *const dst_worker_data = (FrameWorkerData *)dst_worker->data1;
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VP9_COMMON *const src_cm = &src_worker_data->pbi->common;
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VP9_COMMON *const dst_cm = &dst_worker_data->pbi->common;
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int i;
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// Wait until source frame's context is ready.
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vp9_frameworker_lock_stats(src_worker);
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while (!src_worker_data->frame_context_ready) {
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pthread_cond_wait(&src_worker_data->stats_cond,
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&src_worker_data->stats_mutex);
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}
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dst_cm->last_frame_seg_map = src_cm->seg.enabled ?
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src_cm->current_frame_seg_map : src_cm->last_frame_seg_map;
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dst_worker_data->pbi->need_resync = src_worker_data->pbi->need_resync;
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vp9_frameworker_unlock_stats(src_worker);
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dst_cm->bit_depth = src_cm->bit_depth;
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#if CONFIG_VP9_HIGHBITDEPTH
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dst_cm->use_highbitdepth = src_cm->use_highbitdepth;
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#endif
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dst_cm->prev_frame = src_cm->show_existing_frame ?
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src_cm->prev_frame : src_cm->cur_frame;
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dst_cm->last_width = !src_cm->show_existing_frame ?
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src_cm->width : src_cm->last_width;
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dst_cm->last_height = !src_cm->show_existing_frame ?
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src_cm->height : src_cm->last_height;
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dst_cm->subsampling_x = src_cm->subsampling_x;
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dst_cm->subsampling_y = src_cm->subsampling_y;
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dst_cm->frame_type = src_cm->frame_type;
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dst_cm->last_show_frame = !src_cm->show_existing_frame ?
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src_cm->show_frame : src_cm->last_show_frame;
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for (i = 0; i < REF_FRAMES; ++i)
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dst_cm->ref_frame_map[i] = src_cm->next_ref_frame_map[i];
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memcpy(dst_cm->lf_info.lfthr, src_cm->lf_info.lfthr,
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(MAX_LOOP_FILTER + 1) * sizeof(loop_filter_thresh));
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dst_cm->lf.last_sharpness_level = src_cm->lf.sharpness_level;
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dst_cm->lf.filter_level = src_cm->lf.filter_level;
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memcpy(dst_cm->lf.ref_deltas, src_cm->lf.ref_deltas, MAX_REF_LF_DELTAS);
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memcpy(dst_cm->lf.mode_deltas, src_cm->lf.mode_deltas, MAX_MODE_LF_DELTAS);
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dst_cm->seg = src_cm->seg;
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memcpy(dst_cm->frame_contexts, src_cm->frame_contexts,
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FRAME_CONTEXTS * sizeof(dst_cm->frame_contexts[0]));
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#else
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(void) dst_worker;
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(void) src_worker;
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#endif // CONFIG_MULTITHREAD
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}
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