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Diffstat (limited to 'src/multimedia/video/qabstractvideobuffer.cpp')
| -rw-r--r-- | src/multimedia/video/qabstractvideobuffer.cpp | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/src/multimedia/video/qabstractvideobuffer.cpp b/src/multimedia/video/qabstractvideobuffer.cpp deleted file mode 100644 index e9d30d0..0000000 --- a/src/multimedia/video/qabstractvideobuffer.cpp +++ /dev/null @@ -1,200 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtMultimedia module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qabstractvideobuffer_p.h" - -#include <qvariant.h> - -QT_BEGIN_NAMESPACE - -/*! - \class QAbstractVideoBuffer - \brief The QAbstractVideoBuffer class is an abstraction for video data. - \since 4.6 - - The QVideoFrame class makes use of a QAbstractVideoBuffer internally to reference a buffer of - video data. Creating a subclass of QAbstractVideoBuffer will allow you to construct video - frames from preallocated or static buffers. - - The contents of a buffer can be accessed by mapping the buffer to memory using the map() - function which returns a pointer to memory containing the contents of the the video buffer. - The memory returned by map() is released by calling the unmap() function. - - The handle() of a buffer may also be used to manipulate it's contents using type specific APIs. - The type of a buffer's handle is given by the handleType() function. - - \sa QVideoFrame -*/ - -/*! - \enum QAbstractVideoBuffer::HandleType - - Identifies the type of a video buffers handle. - - \value NoHandle The buffer has no handle, its data can only be accessed by mapping the buffer. - \value GLTextureHandle The handle of the buffer is an OpenGL texture ID. - \value XvShmImageHandle The handle contains pointer to shared memory XVideo image. - \value CoreImageHandle The handle contains pointer to Mac OS X CIImage. - \value UserHandle Start value for user defined handle types. - - \sa handleType() -*/ - -/*! - \enum QAbstractVideoBuffer::MapMode - - Enumerates how a video buffer's data is mapped to memory. - - \value NotMapped The video buffer has is not mapped to memory. - \value ReadOnly The mapped memory is populated with data from the video buffer when mapped, but - the content of the mapped memory may be discarded when unmapped. - \value WriteOnly The mapped memory in unitialized when mapped, and the content will be used to - populate the video buffer when unmapped. - \value ReadWrite The mapped memory is populated with data from the video buffer, and the - video buffer is repopulated with the content of the mapped memory. - - \sa mapMode(), map() -*/ - -/*! - Constructs an abstract video buffer of the given \a type. -*/ - -QAbstractVideoBuffer::QAbstractVideoBuffer(HandleType type) - : d_ptr(new QAbstractVideoBufferPrivate) -{ - Q_D(QAbstractVideoBuffer); - - d->handleType = type; -} - -/*! - \internal -*/ - -QAbstractVideoBuffer::QAbstractVideoBuffer(QAbstractVideoBufferPrivate &dd, HandleType type) - : d_ptr(&dd) -{ - Q_D(QAbstractVideoBuffer); - - d->handleType = type; -} - -/*! - Destroys an abstract video buffer. -*/ - -QAbstractVideoBuffer::~QAbstractVideoBuffer() -{ - delete d_ptr; -} - -/*! - Returns the type of a video buffer's handle. - - \sa handle() -*/ - -QAbstractVideoBuffer::HandleType QAbstractVideoBuffer::handleType() const -{ - return d_func()->handleType; -} - -/*! - \fn QAbstractVideoBuffer::mapMode() const - - Returns the mode a video buffer is mapped in. - - \sa map() -*/ - -/*! - \fn QAbstractVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine) - - Maps the contents of a video buffer to memory. - - The map \a mode indicates whether the contents of the mapped memory should be read from and/or - written to the buffer. If the map mode includes the QAbstractVideoBuffer::ReadOnly flag the - mapped memory will be populated with the content of the video buffer when mapped. If the map - mode includes the QAbstractVideoBuffer::WriteOnly flag the content of the mapped memory will be - persisted in the buffer when unmapped. - - When access to the data is no longer needed be sure to call the unmap() function to release the - mapped memory. - - Returns a pointer to the mapped memory region, or a null pointer if the mapping failed. The - size in bytes of the mapped memory region is returned in \a numBytes, and the line stride in \a - bytesPerLine. - - When access to the data is no longer needed be sure to unmap() the buffer. - - \note Writing to memory that is mapped as read-only is undefined, and may result in changes - to shared data. - - \sa unmap(), mapMode() -*/ - -/*! - \fn QAbstractVideoBuffer::unmap() - - Releases the memory mapped by the map() function - - If the \l {QAbstractVideoBuffer::MapMode}{MapMode} included the QAbstractVideoBuffer::WriteOnly - flag this will persist the current content of the mapped memory to the video frame. - - \sa map() -*/ - -/*! - Returns a type specific handle to the data buffer. - - The type of the handle is given by handleType() function. - - \sa handleType() -*/ - -QVariant QAbstractVideoBuffer::handle() const -{ - return QVariant(); -} - - -QT_END_NAMESPACE |