itsmattkc
1aa87cbda6
Large-scale code cleanup. Also adds a license to the top of all files that were missing it.
124 lines
2.8 KiB
C++
124 lines
2.8 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "ffmpegframecache.h"
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#include <QDateTime>
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#include <QDebug>
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OLIVE_NAMESPACE_ENTER
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QMutex FFmpegFrameCache::pool_lock_;
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QList<Frame*> FFmpegFrameCache::frame_pool_;
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Frame *FFmpegFrameCache::Client::append(const VideoRenderingParams& params)
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{
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Frame* f = FFmpegFrameCache::Get(params);
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frames_.append({f, QDateTime::currentMSecsSinceEpoch()});
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return f;
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}
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void FFmpegFrameCache::Client::clear()
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{
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foreach (const CachedFrame& cf, frames_) {
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FFmpegFrameCache::Release(cf.frame);
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}
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frames_.clear();
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}
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bool FFmpegFrameCache::Client::isEmpty() const
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{
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return frames_.isEmpty();
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}
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Frame *FFmpegFrameCache::Client::first() const
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{
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return frames_.first().frame;
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}
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Frame *FFmpegFrameCache::Client::at(int i) const
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{
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return frames_.at(i).frame;
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}
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Frame *FFmpegFrameCache::Client::last() const
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{
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return frames_.last().frame;
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}
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int FFmpegFrameCache::Client::size() const
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{
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return frames_.size();
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}
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void FFmpegFrameCache::Client::accessedFirst()
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{
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frames_.first().accessed = QDateTime::currentMSecsSinceEpoch();
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}
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void FFmpegFrameCache::Client::accessedLast()
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{
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frames_.last().accessed = QDateTime::currentMSecsSinceEpoch();
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}
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void FFmpegFrameCache::Client::accessed(int i)
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{
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frames_[i].accessed = QDateTime::currentMSecsSinceEpoch();
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}
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void FFmpegFrameCache::Client::remove_old_frames(qint64 older_than)
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{
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while (!frames_.isEmpty() && frames_.first().accessed < older_than) {
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FFmpegFrameCache::Release(frames_.takeFirst().frame);
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}
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}
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Frame* FFmpegFrameCache::Get(const VideoRenderingParams ¶ms)
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{
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QMutexLocker locker(&pool_lock_);
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// See if we have a frame matching this description in the pool
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for (int i=0;i<frame_pool_.size();i++) {
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if (frame_pool_.at(i)->width() == params.width()
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&& frame_pool_.at(i)->height() == params.height()
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&& frame_pool_.at(i)->format() == params.format()) {
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return frame_pool_.takeAt(i);
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}
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}
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// Otherwise we'll need to create one
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Frame* f = new Frame();
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f->set_video_params(params);
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f->allocate();
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return f;
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}
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void FFmpegFrameCache::Release(Frame *f)
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{
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QMutexLocker locker(&pool_lock_);
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frame_pool_.append(f);
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}
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OLIVE_NAMESPACE_EXIT
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