Qt 4.8
qabstractvideobuffer.h
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41 
42 #ifndef QABSTRACTVIDEOBUFFER_H
43 #define QABSTRACTVIDEOBUFFER_H
44 
45 #include <QtCore/qmetatype.h>
46 
48 
50 
51 QT_MODULE(Multimedia)
52 
53 class QVariant;
54 
56 
58 {
59 public:
61  {
67  UserHandle = 1000
68  };
69 
70  enum MapMode
71  {
72  NotMapped = 0x00,
73  ReadOnly = 0x01,
74  WriteOnly = 0x02,
75  ReadWrite = ReadOnly | WriteOnly
76  };
77 
79  virtual ~QAbstractVideoBuffer();
80 
81  HandleType handleType() const;
82 
83  virtual MapMode mapMode() const = 0;
84 
85  virtual uchar *map(MapMode mode, int *numBytes, int *bytesPerLine) = 0;
86  virtual void unmap() = 0;
87 
88  virtual QVariant handle() const;
89 
90 protected:
92 
94 
95 private:
98 };
99 
101 
104 
106 
107 #endif
The QVariant class acts like a union for the most common Qt data types.
Definition: qvariant.h:92
MapMode
Enumerates how a video buffer&#39;s data is mapped to memory.
int type
Definition: qmetatype.cpp:239
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
QAbstractVideoBufferPrivate * d_ptr
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
HandleType
Identifies the type of a video buffers handle.
unsigned char uchar
Definition: qglobal.h:994
QFuture< void > map(Sequence &sequence, MapFunction function)
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
#define Q_DECLARE_METATYPE(TYPE)
This macro makes the type Type known to QMetaType as long as it provides a public default constructor...
Definition: qmetatype.h:265
The QAbstractVideoBuffer class is an abstraction for video data.
#define Q_MULTIMEDIA_EXPORT
Definition: qglobal.h:1456
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
#define QT_END_HEADER
Definition: qglobal.h:137