1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part 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 The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/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 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 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