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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "mediasamplevideobuffer.h"
MediaSampleVideoBuffer::MediaSampleVideoBuffer(IMediaSample *sample, int bytesPerLine)
: QAbstractVideoBuffer(NoHandle)
, m_sample(sample)
, m_bytesPerLine(bytesPerLine)
, m_mapMode(NotMapped)
{
m_sample->AddRef();
}
MediaSampleVideoBuffer::~MediaSampleVideoBuffer()
{
m_sample->Release();
}
uchar *MediaSampleVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
{
if (m_mapMode == NotMapped && mode != NotMapped) {
if (numBytes)
*numBytes = m_sample->GetActualDataLength();
if (bytesPerLine)
*bytesPerLine = m_bytesPerLine;
BYTE *bytes = 0;
if (m_sample->GetPointer(&bytes) == S_OK) {
m_mapMode = mode;
return reinterpret_cast<uchar *>(bytes);
}
}
return 0;
}
void MediaSampleVideoBuffer::unmap()
{
m_mapMode = NotMapped;
}
QAbstractVideoBuffer::MapMode MediaSampleVideoBuffer::mapMode() const
{
return m_mapMode;
}
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