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39 
40 #ifndef DIRECTSHOWMEDIATYPE_H
41 #define DIRECTSHOWMEDIATYPE_H
42 
43 #include <dshow.h>
44 
45 #include <qvideosurfaceformat.h>
46 
47 #include <dvdmedia.h>
48 #include <QtCore/qglobal.h>
49 
50 QT_BEGIN_NAMESPACE
51 
52 class DirectShowMediaType
53 {
54 public:
55     DirectShowMediaType();
56     DirectShowMediaType(const DirectShowMediaType &other);
57     DirectShowMediaType(DirectShowMediaType &&other) noexcept;
58     explicit DirectShowMediaType(const AM_MEDIA_TYPE &type);
59     explicit DirectShowMediaType(AM_MEDIA_TYPE &&type);
~DirectShowMediaType()60     ~DirectShowMediaType() { clear(mediaType); }
61 
62     DirectShowMediaType &operator =(const DirectShowMediaType &other);
63     DirectShowMediaType &operator =(DirectShowMediaType &&other) noexcept;
64 
clear()65     void clear() { clear(mediaType); }
66 
67     inline AM_MEDIA_TYPE *operator &() Q_DECL_NOTHROW { return &mediaType; }
68     inline AM_MEDIA_TYPE *operator ->() Q_DECL_NOTHROW { return &mediaType; }
69 
70     inline const AM_MEDIA_TYPE *operator &() const Q_DECL_NOTHROW { return &mediaType; }
71     inline const AM_MEDIA_TYPE *operator ->() const Q_DECL_NOTHROW { return &mediaType; }
72 
73     static void init(AM_MEDIA_TYPE *type);
74     static void copy(AM_MEDIA_TYPE *target, const AM_MEDIA_TYPE *source);
75     static void copyToUninitialized(AM_MEDIA_TYPE *target, const AM_MEDIA_TYPE *source);
76     static void move(AM_MEDIA_TYPE *target, AM_MEDIA_TYPE **source);
77     static void move(AM_MEDIA_TYPE *target, AM_MEDIA_TYPE &source);
78     static void clear(AM_MEDIA_TYPE &type);
79     static void deleteType(AM_MEDIA_TYPE *type);
80     static bool isPartiallySpecified(const AM_MEDIA_TYPE *mediaType);
81     static bool isCompatible(const AM_MEDIA_TYPE *a, const AM_MEDIA_TYPE *b);
82     static GUID convertPixelFormat(QVideoFrame::PixelFormat format);
83 
84     static QVideoSurfaceFormat videoFormatFromType(const AM_MEDIA_TYPE *type);
85     static QVideoFrame::PixelFormat pixelFormatFromType(const AM_MEDIA_TYPE *type);
86     static int bytesPerLine(const QVideoSurfaceFormat &format);
87     static QVideoSurfaceFormat::Direction scanLineDirection(QVideoFrame::PixelFormat pixelFormat, const BITMAPINFOHEADER &bmiHeader);
88 
89 private:
90     AM_MEDIA_TYPE mediaType;
91 };
92 
93 Q_DECLARE_TYPEINFO(DirectShowMediaType, Q_MOVABLE_TYPE);
94 
95 QT_END_NAMESPACE
96 
97 #endif
98