qwindowsimagecapture_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 QWINDOWSIMAGECAPTURE_H
#define QWINDOWSIMAGECAPTURE_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/private/qplatformimagecapture_p.h>
 
QT_BEGIN_NAMESPACE
 
class QWindowsMediaDeviceSession;
class QWindowsMediaCaptureService;
 
class QWindowsImageCapture : public QPlatformImageCapture
{
    Q_OBJECT
public:
    explicit QWindowsImageCapture(QImageCapture *parent);
    virtual ~QWindowsImageCapture();
 
    bool isReadyForCapture() const override;
 
    int capture(const QString &fileName) override;
    int captureToBuffer() override;
 
    QImageEncoderSettings imageSettings() const override;
    void setImageSettings(const QImageEncoderSettings &settings) override;
 
    void setCaptureSession(QPlatformMediaCaptureSession *session);
 
private Q_SLOTS:
    void handleVideoFrameChanged(const QVideoFrame &frame);
 
private:
    int doCapture(const QString &fileName);
    void saveImage(int captureId, const QString &fileName,
                   const QImage &image, const QMediaMetaData &metaData,
                   const QImageEncoderSettings &settings);
    QString writerFormat(QImageCapture::FileFormat reqFormat);
    int writerQuality(const QString &writerFormat,
                      QImageCapture::Quality quality);
 
    QWindowsMediaCaptureService  *m_captureService = nullptr;
    QWindowsMediaDeviceSession   *m_mediaDeviceSession = nullptr;
    QImageEncoderSettings         m_settings;
    int m_captureId = 0;
    bool m_capturing = false;
    QString m_fileName;
};
 
QT_END_NAMESPACE
 
#endif  // QWINDOWSIMAGECAPTURE_H