Qt 4.8
qvideoframe.h
Go to the documentation of this file.
1 /****************************************************************************
2 **
3 ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
5 **
6 ** This file is part of the QtMultimedia module of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia. For licensing terms and
14 ** conditions see http://qt.digia.com/licensing. For further information
15 ** use the contact form at http://qt.digia.com/contact-us.
16 **
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 2.1 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 2.1 requirements
23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 **
25 ** In addition, as a special exception, Digia gives you certain additional
26 ** rights. These rights are described in the Digia Qt LGPL Exception
27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 **
29 ** GNU General Public License Usage
30 ** Alternatively, this file may be used under the terms of the GNU
31 ** General Public License version 3.0 as published by the Free Software
32 ** Foundation and appearing in the file LICENSE.GPL included in the
33 ** packaging of this file. Please review the following information to
34 ** ensure the GNU General Public License version 3.0 requirements will be
35 ** met: http://www.gnu.org/copyleft/gpl.html.
36 **
37 **
38 ** $QT_END_LICENSE$
39 **
40 ****************************************************************************/
41 
42 #ifndef QVIDEOFRAME_H
43 #define QVIDEOFRAME_H
44 
45 #include <QtCore/qmetatype.h>
46 #include <QtCore/qshareddata.h>
47 #include <QtGui/qimage.h>
48 #include <QtMultimedia/qabstractvideobuffer.h>
49 
51 
53 
54 QT_MODULE(Multimedia)
55 
56 class QSize;
57 class QVariant;
58 
59 class QVideoFramePrivate;
60 
62 {
63 public:
64  enum FieldType
65  {
69  InterlacedFrame
70  };
71 
73  {
89 
105 
106  Format_User = 1000
107  };
108 
109  QVideoFrame();
111  QVideoFrame(int bytes, const QSize &size, int bytesPerLine, PixelFormat format);
112  QVideoFrame(const QImage &image);
113  QVideoFrame(const QVideoFrame &other);
114  ~QVideoFrame();
115 
116  QVideoFrame &operator =(const QVideoFrame &other);
117 
118  bool isValid() const;
119 
120  PixelFormat pixelFormat() const;
121 
122  QAbstractVideoBuffer::HandleType handleType() const;
123 
124  QSize size() const;
125  int width() const;
126  int height() const;
127 
128  FieldType fieldType() const;
129  void setFieldType(FieldType);
130 
131  bool isMapped() const;
132  bool isReadable() const;
133  bool isWritable() const;
134 
135  QAbstractVideoBuffer::MapMode mapMode() const;
136 
138  void unmap();
139 
140  int bytesPerLine() const;
141 
142  uchar *bits();
143  const uchar *bits() const;
144  int mappedBytes() const;
145 
146  QVariant handle() const;
147 
148  qint64 startTime() const;
149  void setStartTime(qint64 time);
150 
151  qint64 endTime() const;
152  void setEndTime(qint64 time);
153 
154  static PixelFormat pixelFormatFromImageFormat(QImage::Format format);
155  static QImage::Format imageFormatFromPixelFormat(PixelFormat format);
156 
157 private:
159 };
160 
162 
165 
167 
168 #endif
169 
The QVariant class acts like a union for the most common Qt data types.
Definition: qvariant.h:92
Format
The following image formats are available in Qt.
Definition: qimage.h:91
MapMode
Enumerates how a video buffer&#39;s data is mapped to memory.
#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
The QVideoFrame class provides a representation of a frame of video data.
Definition: qvideoframe.h:61
HandleType
Identifies the type of a video buffers handle.
unsigned char uchar
Definition: qglobal.h:994
PixelFormat
Enumerates video data types.
Definition: qvideoframe.h:72
QFuture< void > map(Sequence &sequence, MapFunction function)
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
__int64 qint64
Definition: qglobal.h:942
#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
The QSize class defines the size of a two-dimensional object using integer point precision.
Definition: qsize.h:53
QExplicitlySharedDataPointer< QVideoFramePrivate > d
Definition: qvideoframe.h:158
#define QT_END_HEADER
Definition: qglobal.h:137
FieldType
Specifies the field an interlaced video frame belongs to.
Definition: qvideoframe.h:64