qt-everywhere-src-5.15.1/qtmultimedia/src/plugins/directshow/common/directshowmediatype.h

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#ifndef DIRECTSHOWMEDIATYPE_H
#define DIRECTSHOWMEDIATYPE_H

#include <dshow.h>

#include <qvideosurfaceformat.h>

#include <dvdmedia.h>
#include <QtCore/qglobal.h>

QT_BEGIN_NAMESPACE

class DirectShowMediaType
{
public:
    DirectShowMediaType();
    DirectShowMediaType(const DirectShowMediaType &other);
    DirectShowMediaType(DirectShowMediaType &&other) noexcept;
    explicit DirectShowMediaType(const AM_MEDIA_TYPE &type);
    explicit DirectShowMediaType(AM_MEDIA_TYPE &&type);
    ~DirectShowMediaType() { clear(mediaType); }

    DirectShowMediaType &operator =(const DirectShowMediaType &other);
    DirectShowMediaType &operator =(DirectShowMediaType &&other) noexcept;

    void clear() { clear(mediaType); }

    inline AM_MEDIA_TYPE *operator &() Q_DECL_NOTHROW { return &mediaType; }
    inline AM_MEDIA_TYPE *operator ->() Q_DECL_NOTHROW { return &mediaType; }

    inline const AM_MEDIA_TYPE *operator &() const Q_DECL_NOTHROW { return &mediaType; }
    inline const AM_MEDIA_TYPE *operator ->() const Q_DECL_NOTHROW { return &mediaType; }

    static void init(AM_MEDIA_TYPE *type);
    static void copy(AM_MEDIA_TYPE *target, const AM_MEDIA_TYPE *source);
    static void copyToUninitialized(AM_MEDIA_TYPE *target, const AM_MEDIA_TYPE *source);
    static void move(AM_MEDIA_TYPE *target, AM_MEDIA_TYPE **source);
    static void move(AM_MEDIA_TYPE *target, AM_MEDIA_TYPE &source);
    static void clear(AM_MEDIA_TYPE &type);
    static void deleteType(AM_MEDIA_TYPE *type);
    static bool isPartiallySpecified(const AM_MEDIA_TYPE *mediaType);
    static bool isCompatible(const AM_MEDIA_TYPE *a, const AM_MEDIA_TYPE *b);
    static GUID convertPixelFormat(QVideoFrame::PixelFormat format);

    static QVideoSurfaceFormat videoFormatFromType(const AM_MEDIA_TYPE *type);
    static QVideoFrame::PixelFormat pixelFormatFromType(const AM_MEDIA_TYPE *type);
    static int bytesPerLine(const QVideoSurfaceFormat &format);
    static QVideoSurfaceFormat::Direction scanLineDirection(QVideoFrame::PixelFormat pixelFormat, const BITMAPINFOHEADER &bmiHeader);

private:
    AM_MEDIA_TYPE mediaType;
};

Q_DECLARE_TYPEINFO(DirectShowMediaType, Q_MOVABLE_TYPE);

QT_END_NAMESPACE

#endif