qt-everywhere-src-5.15.1/qtmultimedia/src/plugins/avfoundation/camera/avfvideoencodersettingscontrol.h

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#ifndef AVFVIDEOENCODERSETTINGSCONTROL_H
#define AVFVIDEOENCODERSETTINGSCONTROL_H

#include <qvideoencodersettingscontrol.h>

#include "avfcamerautility.h"
#import <AVFoundation/AVFoundation.h>

@class NSDictionary;

QT_BEGIN_NAMESPACE

class AVFCameraService;

class AVFVideoEncoderSettingsControl : public QVideoEncoderSettingsControl
{
    Q_OBJECT

public:
    explicit AVFVideoEncoderSettingsControl(AVFCameraService *service);

    QList<QSize> supportedResolutions(const QVideoEncoderSettings &requestedVideoSettings,
                                      bool *continuous = nullptr) const override;

    QList<qreal> supportedFrameRates(const QVideoEncoderSettings &requestedVideoSettings,
                                     bool *continuous = nullptr) const override;

    QStringList supportedVideoCodecs() const override;
    QString videoCodecDescription(const QString &codecName) const override;

    QVideoEncoderSettings videoSettings() const override;
    void setVideoSettings(const QVideoEncoderSettings &requestedVideoSettings) override;

    NSDictionary *applySettings(AVCaptureConnection *connection);
    void unapplySettings(AVCaptureConnection *connection);

private:
    AVFCameraService *m_service;

    QVideoEncoderSettings m_requestedSettings;
    QVideoEncoderSettings m_actualSettings;

    AVCaptureDeviceFormat *m_restoreFormat;
    AVFPSRange m_restoreFps;
};

QT_END_NAMESPACE

#endif // AVFVIDEOENCODERSETTINGSCONTROL_H