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oak-editor/app/widget/viewer/viewerqueue.h
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#ifndef VIEWERQUEUE_H
#define VIEWERQUEUE_H
#include <QLinkedList>
#include "codec/frame.h"
OLIVE_NAMESPACE_ENTER
struct ViewerPlaybackFrame {
rational timestamp;
FramePtr frame;
};
class ViewerQueue : public QLinkedList<ViewerPlaybackFrame> {
public:
ViewerQueue() = default;
void AppendTimewise(const ViewerPlaybackFrame& f, int playback_speed)
{
if (this->isEmpty() || f.timestamp > this->last().timestamp == playback_speed > 0) {
this->append(f);
} else {
reverse_iterator i = this->rbegin();
while (i != this->rend()) {
reverse_iterator next = i + 1;
if (next->timestamp < f.timestamp == playback_speed > 0) {
this->insert(i.base(), f);
break;
} else {
i = next;
}
}
}
}
QMutex* lock()
{
return &queue_lock_;
}
private:
QMutex queue_lock_;
};
OLIVE_NAMESPACE_EXIT
#endif // VIEWERQUEUE_H