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// Copyright (C) 2024 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 QMEDIAFRAMEINPUT_P_H
#define QMEDIAFRAMEINPUT_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 <QtMultimedia/qmediacapturesession.h>
#include <QtCore/private/qobject_p.h>
QT_BEGIN_NAMESPACE
class QMediaFrameInputPrivate : public QObjectPrivate
{
public:
void setCaptureSession(QMediaCaptureSession *session);
QMediaCaptureSession *captureSession() const { return m_captureSession; }
protected:
template <typename Sender>
bool sendMediaFrame(Sender &&sender)
{
if (!m_canSendMediaFrame)
return false;
sender();
postponeCheckReadyToSend();
return true;
}
template <typename Sender, typename Signal>
void addUpdateSignal(Sender sender, Signal signal)
{
connect(sender, signal, this, &QMediaFrameInputPrivate::updateCanSendMediaFrame);
}
template <typename Sender, typename Signal>
void removeUpdateSignal(Sender sender, Signal signal)
{
disconnect(sender, signal, this, &QMediaFrameInputPrivate::updateCanSendMediaFrame);
}
void updateCanSendMediaFrame();
private:
void postponeCheckReadyToSend();
virtual bool checkIfCanSendMediaFrame() const = 0;
virtual void emitReadyToSendMediaFrame() = 0;
virtual void updateCaptureSessionConnections(QMediaCaptureSession *prevSession,
QMediaCaptureSession *currentSession) = 0;
private:
QMediaCaptureSession *m_captureSession = nullptr;
bool m_canSendMediaFrame = false;
bool m_postponeReadyToSendCheckRun = false;
};
QT_END_NAMESPACE
#endif // QMEDIAFRAMEINPUT_P_H