65 lines
1.5 KiB
C++
65 lines
1.5 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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#ifndef VIEWERQUEUE_H
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#define VIEWERQUEUE_H
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#include <QLinkedList>
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#include "codec/frame.h"
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OLIVE_NAMESPACE_ENTER
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struct ViewerPlaybackFrame {
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rational timestamp;
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FramePtr frame;
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};
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class ViewerQueue : public QLinkedList<ViewerPlaybackFrame> {
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public:
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ViewerQueue() = default;
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void AppendTimewise(const ViewerPlaybackFrame& f, int playback_speed)
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{
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reverse_iterator i = this->rbegin();
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if (this->isEmpty() || (this->last().timestamp < f.timestamp) == (playback_speed > 0)) {
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this->append(f);
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} else {
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while (i != this->rend()) {
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reverse_iterator next = i + 1;
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if ((next->timestamp < f.timestamp) == (playback_speed > 0)) {
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this->insert(i.base(), f);
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return;
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} else {
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i = next;
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}
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}
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}
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}
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};
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OLIVE_NAMESPACE_EXIT
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#endif // VIEWERQUEUE_H
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