64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
/*
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* Olive Community Edition - Non-Linear Video Editor
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* Copyright (C) 2025 Olive CE Team
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*
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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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*
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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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*
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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 "codec/frame.h"
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namespace olive
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{
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struct ViewerPlaybackFrame {
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rational timestamp;
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QVariant frame;
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};
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class ViewerQueue : public std::list<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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if (this->empty() ||
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(this->back().timestamp < f.timestamp) == (playback_speed > 0)) {
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this->push_back(f);
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} else {
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for (auto i = this->begin(); i != this->end(); i++) {
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if ((i->timestamp > f.timestamp) == (playback_speed > 0)) {
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this->insert(i, f);
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break;
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}
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}
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}
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}
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void PurgeBefore(const rational &time, int playback_speed)
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{
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while (!this->empty() &&
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((playback_speed > 0 && this->front().timestamp < time) ||
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(playback_speed < 0 && this->front().timestamp > time))) {
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this->pop_front();
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}
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}
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};
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}
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#endif // VIEWERQUEUE_H
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