48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/*
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* Oak Video Editor - 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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#include "viewerplaybacktimer.h"
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#include <QDateTime>
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#include <QtMath>
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namespace olive
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{
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void ViewerPlaybackTimer::Start(const int64_t &start_timestamp,
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const int &playback_speed,
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const double &timebase)
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{
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start_msec_ = QDateTime::currentMSecsSinceEpoch();
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start_timestamp_ = start_timestamp;
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playback_speed_ = playback_speed;
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timebase_ = timebase * 1000;
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}
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int64_t ViewerPlaybackTimer::GetTimestampNow() const
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{
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int64_t real_time = QDateTime::currentMSecsSinceEpoch() - start_msec_;
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int64_t frames_since_start =
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qFloor(static_cast<double>(real_time) / (timebase_));
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return start_timestamp_ + frames_since_start * playback_speed_;
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}
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}
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