1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the examples of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:BSD$ 9 ** You may use this file under the terms of the BSD license as follows: 10 ** 11 ** "Redistribution and use in source and binary forms, with or without 12 ** modification, are permitted provided that the following conditions are 13 ** met: 14 ** * Redistributions of source code must retain the above copyright 15 ** notice, this list of conditions and the following disclaimer. 16 ** * Redistributions in binary form must reproduce the above copyright 17 ** notice, this list of conditions and the following disclaimer in 18 ** the documentation and/or other materials provided with the 19 ** distribution. 20 ** * Neither the name of The Qt Company Ltd nor the names of its 21 ** contributors may be used to endorse or promote products derived 22 ** from this software without specific prior written permission. 23 ** 24 ** 25 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." 36 ** 37 ** $QT_END_LICENSE$ 38 ** 39 ****************************************************************************/ 40 41 #ifndef VIDEOITEM_H 42 #define VIDEOITEM_H 43 44 #include <QtMultimedia/QAbstractVideoSurface> 45 #include <QtGui/QGraphicsItem> 46 47 class VideoItem 48 : public QAbstractVideoSurface, 49 public QGraphicsItem 50 { 51 Q_OBJECT 52 Q_INTERFACES(QGraphicsItem) 53 public: 54 explicit VideoItem(QGraphicsItem *parentItem = 0); 55 ~VideoItem(); 56 57 QRectF boundingRect() const; 58 void paint( 59 QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); 60 61 //video surface 62 QList<QVideoFrame::PixelFormat> supportedPixelFormats( 63 QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const; 64 65 bool start(const QVideoSurfaceFormat &format); 66 void stop(); 67 bool present(const QVideoFrame &frame); 68 69 private: 70 QImage::Format imageFormat; 71 QSize imageSize; 72 73 QVideoFrame currentFrame; 74 bool framePainted; 75 }; 76 77 #endif 78 79