qplatformvideosource_p.h

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// 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 QPLATFORMVIDEOSOURCE_P_H
#define QPLATFORMVIDEOSOURCE_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/qvideoframeformat.h>
#include <QtCore/private/qglobal_p.h>
#include <QtCore/qnativeinterface.h>
#include <QtCore/qobject.h>
 
#include <optional>
 
QT_BEGIN_NAMESPACE
 
class QVideoFrame;
class QPlatformMediaCaptureSession;
 
class Q_MULTIMEDIA_EXPORT QPlatformVideoSource : public QObject
{
    Q_OBJECT
public:
    using QObject::QObject;
 
    virtual void setActive(bool active) = 0;
    virtual bool isActive() const = 0;
 
    virtual QVideoFrameFormat frameFormat() const = 0;
 
    virtual std::optional<int> ffmpegHWPixelFormat() const;
 
    virtual void setCaptureSession(QPlatformMediaCaptureSession *) { }
 
    virtual QString errorString() const = 0;
 
    bool hasError() const { return !errorString().isEmpty(); }
 
Q_SIGNALS:
    void newVideoFrame(const QVideoFrame &);
    void activeChanged(bool);
    void errorChanged();
};
 
QT_END_NAMESPACE
 
#endif // QPLATFORMVIDEOSOURCE_P_H