| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | #ifndef QFFMPEGPLAYBACKENGINEOBJECT_P_H |
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| 4 | #define QFFMPEGPLAYBACKENGINEOBJECT_P_H |
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| 5 | |
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| 6 | // |
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| 7 | // W A R N I N G |
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| 8 | // ------------- |
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| 9 | // |
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| 10 | // This file is not part of the Qt API. It exists purely as an |
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| 11 | // implementation detail. This header file may change from version to |
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| 12 | // version without notice, or even be removed. |
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| 13 | // |
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| 14 | // We mean it. |
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| 15 | // |
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| 16 | |
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| 17 | #include "playbackengine/qffmpegplaybackenginedefs_p.h" |
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| 18 | #include "qthread.h" |
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| 19 | #include "qatomic.h" |
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| 20 | |
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| 21 | QT_BEGIN_NAMESPACE |
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| 22 | |
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| 23 | class QTimer; |
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| 24 | |
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| 25 | namespace QFFmpeg { |
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| 26 | |
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| 27 | class PlaybackEngineObject : public QObject |
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| 28 | { |
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| 29 | Q_OBJECT |
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| 30 | public: |
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| 31 | using TimePoint = std::chrono::steady_clock::time_point; |
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| 32 | using TimePointOpt = std::optional<TimePoint>; |
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| 33 | using Id = quint64; |
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| 34 | |
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| 35 | PlaybackEngineObject(); |
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| 36 | |
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| 37 | ~PlaybackEngineObject(); |
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| 38 | |
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| 39 | bool isPaused() const; |
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| 40 | |
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| 41 | bool isAtEnd() const; |
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| 42 | |
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| 43 | void kill(); |
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| 44 | |
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| 45 | void setPaused(bool isPaused); |
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| 46 | |
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| 47 | Id id() const; |
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| 48 | |
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| 49 | signals: |
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| 50 | void atEnd(); |
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| 51 | |
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| 52 | void error(int code, const QString &errorString); |
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| 53 | |
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| 54 | protected: |
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| 55 | QTimer &timer(); |
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| 56 | |
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| 57 | void scheduleNextStep(bool allowDoImmediatelly = true); |
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| 58 | |
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| 59 | virtual void onPauseChanged(); |
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| 60 | |
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| 61 | virtual bool canDoNextStep() const; |
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| 62 | |
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| 63 | virtual int timerInterval() const; |
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| 64 | |
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| 65 | void setAtEnd(bool isAtEnd); |
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| 66 | |
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| 67 | virtual void doNextStep() { } |
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| 68 | |
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| 69 | private slots: |
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| 70 | void onTimeout(); |
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| 71 | |
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| 72 | private: |
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| 73 | std::unique_ptr<QTimer> m_timer; |
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| 74 | |
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| 75 | QAtomicInteger<bool> m_paused = true; |
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| 76 | QAtomicInteger<bool> m_atEnd = false; |
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| 77 | QAtomicInteger<bool> m_deleting = false; |
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| 78 | const Id m_id; |
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| 79 | }; |
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| 80 | } // namespace QFFmpeg |
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| 81 | |
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| 82 | QT_END_NAMESPACE |
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| 83 | |
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| 84 | #endif // QFFMPEGPLAYBACKENGINEOBJECT_P_H |
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| 85 | |
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