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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef FRAMECONTENTTRACKER_H
#define FRAMECONTENTTRACKER_H
#include <QtCore/QObject>
#include <QtCore/QMetaObject>
#include <QtCore/QPointer>
#include <QtCore/QTimer>
#include <QtCore/QAtomicInteger>
#include <QtGui/QImage>
#include <QtAppManCommon/global.h>
QT_BEGIN_NAMESPACE_AM
class FrameContentTracker : public QObject
{
Q_OBJECT
Q_PROPERTY(int duplicateFrames READ duplicateFrames NOTIFY updated FINAL)
Q_PROPERTY(QObject *window READ window WRITE setWindow NOTIFY windowChanged FINAL)
Q_PROPERTY(int interval READ interval WRITE setInterval NOTIFY intervalChanged FINAL)
Q_PROPERTY(bool running READ running WRITE setRunning NOTIFY runningChanged FINAL)
Q_PROPERTY(QStringList roleNames READ roleNames CONSTANT FINAL)
public:
FrameContentTracker(QObject *parent = nullptr);
~FrameContentTracker() override;
QStringList roleNames() const;
Q_INVOKABLE void update();
Q_SIGNAL void updated();
QObject *window() const;
void setWindow(QObject *window);
Q_SIGNAL void windowChanged();
bool running() const;
void setRunning(bool running);
Q_SIGNAL void runningChanged();
int interval() const;
void setInterval(int interval);
Q_SIGNAL void intervalChanged();
int duplicateFrames() const;
private:
QPointer<QObject> m_window;
QAtomicInteger<int> m_sameFrameCounter = -1;
QImage m_lastFrame;
int m_duplicateFrames = -1;
QTimer m_updateTimer;
QMetaObject::Connection m_frameAfterRenderingConnection;
};
QT_END_NAMESPACE_AM
#endif // FRAMECONTENTTRACKER_H
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