qffmpegimagecapture_p.h

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// Copyright (C) 2016 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 QFFMPEGIMAGECAPTURE_H

#define QFFMPEGIMAGECAPTURE_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>

#include <QtFFmpegMediaPluginImpl/private/qffmpegmediacapturesession_p.h>

#include <QtCore/qpointer.h>

#include <qqueue.h>

QT_BEGIN_NAMESPACE

class QFFmpegImageCapture : public QPlatformImageCapture

    Q_OBJECT

public:

    QFFmpegImageCapture(QImageCapture *parent);

    ~QFFmpegImageCapture() override;

    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);

    void cancelPendingImage(QImageCapture::Error error, const QString &errorMsg);

protected:

    virtual int doCapture(const QString &fileName);

    virtual void setupVideoSourceConnections();

    virtual void applySettingsToVideoSource() { }

    QPlatformVideoSource *videoSource() const;

    QFFmpegMediaCaptureSession *captureSession() const { return m_session; }

    void updateReadyForCapture();

protected Q_SLOTS:

    void newVideoFrame(const QVideoFrame &frame);

    void onVideoSourceChanged();

private:

    QFFmpegMediaCaptureSession *m_session = nullptr;

    QPointer<QPlatformVideoSource> m_videoSource;

    int m_lastId = 0;

    QImageEncoderSettings m_settings;

    struct PendingImage {

        int id;

        QString filename;

        QMediaMetaData metaData;

};

    QQueue<PendingImage> m_pendingImages;

    bool m_isReadyForCapture = false;

};

QT_END_NAMESPACE

#endif // QFFMPEGIMAGECAPTURE_H