| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
|---|
| 3 | #ifndef QFFMPEGPLAYBACKENGINEOBJECT_P_H |
|---|
| 4 | #define QFFMPEGPLAYBACKENGINEOBJECT_P_H |
|---|
| 5 | |
|---|
| 6 | // |
|---|
| 7 | // W A R N I N G |
|---|
| 8 | // ------------- |
|---|
| 9 | // |
|---|
| 10 | // This file is not part of the Qt API. It exists purely as an |
|---|
| 11 | // implementation detail. This header file may change from version to |
|---|
| 12 | // version without notice, or even be removed. |
|---|
| 13 | // |
|---|
| 14 | // We mean it. |
|---|
| 15 | // |
|---|
| 16 | |
|---|
| 17 | #include <QtFFmpegMediaPluginImpl/private/qffmpegplaybackenginedefs_p.h> |
|---|
| 18 | #include "qthread.h" |
|---|
| 19 | #include "qatomic.h" |
|---|
| 20 | #include <chrono> |
|---|
| 21 | |
|---|
| 22 | QT_BEGIN_NAMESPACE |
|---|
| 23 | |
|---|
| 24 | class QTimer; |
|---|
| 25 | |
|---|
| 26 | namespace QFFmpeg { |
|---|
| 27 | |
|---|
| 28 | class PlaybackEngineObject : public QObject |
|---|
| 29 | { |
|---|
| 30 | Q_OBJECT |
|---|
| 31 | public: |
|---|
| 32 | using TimePoint = std::chrono::steady_clock::time_point; |
|---|
| 33 | using TimePointOpt = std::optional<TimePoint>; |
|---|
| 34 | using Id = quint64; |
|---|
| 35 | |
|---|
| 36 | PlaybackEngineObject(); |
|---|
| 37 | |
|---|
| 38 | ~PlaybackEngineObject() override; |
|---|
| 39 | |
|---|
| 40 | bool isPaused() const; |
|---|
| 41 | |
|---|
| 42 | bool isAtEnd() const; |
|---|
| 43 | |
|---|
| 44 | void kill(); |
|---|
| 45 | |
|---|
| 46 | void setPaused(bool isPaused); |
|---|
| 47 | |
|---|
| 48 | Id id() const; |
|---|
| 49 | |
|---|
| 50 | signals: |
|---|
| 51 | void atEnd(); |
|---|
| 52 | |
|---|
| 53 | void error(int code, const QString &errorString); |
|---|
| 54 | |
|---|
| 55 | protected: |
|---|
| 56 | QTimer &timer(); |
|---|
| 57 | |
|---|
| 58 | void scheduleNextStep(bool allowDoImmediatelly = true); |
|---|
| 59 | |
|---|
| 60 | virtual void onPauseChanged(); |
|---|
| 61 | |
|---|
| 62 | virtual bool canDoNextStep() const; |
|---|
| 63 | |
|---|
| 64 | virtual std::chrono::milliseconds timerInterval() const; |
|---|
| 65 | |
|---|
| 66 | void setAtEnd(bool isAtEnd); |
|---|
| 67 | |
|---|
| 68 | virtual void doNextStep() { } |
|---|
| 69 | |
|---|
| 70 | private slots: |
|---|
| 71 | void onTimeout(); |
|---|
| 72 | |
|---|
| 73 | private: |
|---|
| 74 | std::unique_ptr<QTimer> m_timer; |
|---|
| 75 | |
|---|
| 76 | QAtomicInteger<bool> m_paused = true; |
|---|
| 77 | QAtomicInteger<bool> m_atEnd = false; |
|---|
| 78 | QAtomicInteger<bool> m_deleting = false; |
|---|
| 79 | const Id m_id; |
|---|
| 80 | }; |
|---|
| 81 | } // namespace QFFmpeg |
|---|
| 82 | |
|---|
| 83 | QT_END_NAMESPACE |
|---|
| 84 | |
|---|
| 85 | #endif // QFFMPEGPLAYBACKENGINEOBJECT_P_H |
|---|
| 86 | |
|---|
