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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmemoryvideobuffer_p.h"
QT_BEGIN_NAMESPACE
/*!
\class QMemoryVideoBuffer
\brief The QMemoryVideoBuffer class provides a system memory allocated video data buffer.
\internal
QMemoryVideoBuffer is the default video buffer for allocating system memory. It may be used to
allocate memory for a QVideoFrame without implementing your own QAbstractVideoBuffer.
*/
/*!
Constructs a video buffer with an image stride of \a bytesPerLine from a byte \a array.
*/
QMemoryVideoBuffer::QMemoryVideoBuffer(const QByteArray &array, int bytesPerLine)
: QAbstractVideoBuffer(QVideoFrame::NoHandle)
{
data = array;
this->bytesPerLine = bytesPerLine;
}
/*!
Destroys a system memory allocated video buffer.
*/
QMemoryVideoBuffer::~QMemoryVideoBuffer() = default;
/*!
\reimp
*/
QVideoFrame::MapMode QMemoryVideoBuffer::mapMode() const
{
return m_mapMode;
}
/*!
\reimp
*/
QAbstractVideoBuffer::MapData QMemoryVideoBuffer::map(QVideoFrame::MapMode mode)
{
MapData mapData;
if (m_mapMode == QVideoFrame::NotMapped && data.size() && mode != QVideoFrame::NotMapped) {
m_mapMode = mode;
mapData.nPlanes = 1;
mapData.bytesPerLine[0] = bytesPerLine;
mapData.data[0] = reinterpret_cast<uchar *>(data.data());
mapData.size[0] = data.size();
}
return mapData;
}
/*!
\reimp
*/
void QMemoryVideoBuffer::unmap()
{
m_mapMode = QVideoFrame::NotMapped;
}
QT_END_NAMESPACE
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