1 files changed, 84 insertions, 0 deletions
diff --git a/src/plugins/multimedia/ffmpeg/playbackengine/qffmpegplaybackengineobject_p.h b/src/plugins/multimedia/ffmpeg/playbackengine/qffmpegplaybackengineobject_p.h
new file mode 100644
index 000000000..02943a55b
--- /dev/null
+++ b/src/plugins/multimedia/ffmpeg/playbackengine/qffmpegplaybackengineobject_p.h
@@ -0,0 +1,84 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+#ifndef QFFMPEGPLAYBACKENGINEOBJECT_P_H
+#define QFFMPEGPLAYBACKENGINEOBJECT_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "playbackengine/qffmpegplaybackenginedefs_p.h"
+#include "qthread.h"
+#include "qatomic.h"
+
+QT_BEGIN_NAMESPACE
+
+class QTimer;
+
+namespace QFFmpeg {
+
+class PlaybackEngineObject : public QObject
+{
+    Q_OBJECT
+public:
+    using TimePoint = std::chrono::steady_clock::time_point;
+    using TimePointOpt = std::optional<TimePoint>;
+    using Id = quint64;
+
+    PlaybackEngineObject();
+
+    ~PlaybackEngineObject();
+
+    bool isPaused() const;
+
+    bool isAtEnd() const;
+
+    void kill();
+
+    void setPaused(bool isPaused);
+
+    Id id() const;
+
+signals:
+    void atEnd();
+
+    void error(int code, const QString &errorString);
+
+protected:
+    QTimer &timer();
+
+    void scheduleNextStep(bool allowDoImmediatelly = true);
+
+    virtual void onPauseChanged();
+
+    virtual bool canDoNextStep() const;
+
+    virtual int timerInterval() const;
+
+    void setAtEnd(bool isAtEnd);
+
+    virtual void doNextStep() { }
+
+private slots:
+    void onTimeout();
+
+private:
+    std::unique_ptr<QTimer> m_timer;
+
+    QAtomicInteger<bool> m_paused = true;
+    QAtomicInteger<bool> m_atEnd = false;
+    QAtomicInteger<bool> m_deleting = false;
+    const Id m_id;
+};
+} // namespace QFFmpeg
+
+QT_END_NAMESPACE
+
+#endif // QFFMPEGPLAYBACKENGINEOBJECT_P_H