/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
** rights.  These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qgstvideobuffer.h"


QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, int bytesPerLine)
    : QAbstractVideoBuffer(NoHandle)
    , m_buffer(buffer)
    , m_bytesPerLine(bytesPerLine)
    , m_mode(NotMapped)
{
    gst_buffer_ref(m_buffer);
}

QGstVideoBuffer::QGstVideoBuffer(GstBuffer *buffer, int bytesPerLine,
                QGstVideoBuffer::HandleType handleType,
                const QVariant &handle)
    : QAbstractVideoBuffer(handleType)
    , m_buffer(buffer)
    , m_bytesPerLine(bytesPerLine)
    , m_mode(NotMapped)
    , m_handle(handle)
{
    gst_buffer_ref(m_buffer);
}

QGstVideoBuffer::~QGstVideoBuffer()
{
    gst_buffer_unref(m_buffer);
}


QAbstractVideoBuffer::MapMode QGstVideoBuffer::mapMode() const
{
    return m_mode;
}

uchar *QGstVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
{
    if (mode != NotMapped && m_mode == NotMapped) {
        if (numBytes)
            *numBytes = m_buffer->size;

        if (bytesPerLine)
            *bytesPerLine = m_bytesPerLine;

        m_mode = mode;

        return m_buffer->data;
    } else {
        return 0;
    }
}
void QGstVideoBuffer::unmap()
{
    m_mode = NotMapped;
}

