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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.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef DIRECTSHOWMEDIATYPE_H
#define DIRECTSHOWMEDIATYPE_H

#include <dshow.h>

#include <qvideosurfaceformat.h>

#include <dvdmedia.h>

class DirectShowMediaType : public AM_MEDIA_TYPE
{
public:
    DirectShowMediaType() { memset(this, 0, sizeof(DirectShowMediaType)); }
    DirectShowMediaType(const AM_MEDIA_TYPE &type) { copy(this, type); }
    DirectShowMediaType(const DirectShowMediaType &other) { copy(this, other); }
    DirectShowMediaType &operator =(const AM_MEDIA_TYPE &type) {
        freeData(this); copy(this, type); return *this; }
    DirectShowMediaType &operator =(const DirectShowMediaType &other) {
        freeData(this); copy(this, other); return *this; }
    ~DirectShowMediaType() { freeData(this); }

    void clear() { freeData(this); memset(this, 0, sizeof(DirectShowMediaType)); }

    static void copy(AM_MEDIA_TYPE *target, const AM_MEDIA_TYPE &source);
    static void freeData(AM_MEDIA_TYPE *type);
    static void deleteType(AM_MEDIA_TYPE *type);

    static GUID convertPixelFormat(QVideoFrame::PixelFormat format);
    static QVideoSurfaceFormat formatFromType(const AM_MEDIA_TYPE &type);

    static int bytesPerLine(const QVideoSurfaceFormat &format);

private:
    static QVideoSurfaceFormat::Direction scanLineDirection(QVideoFrame::PixelFormat pixelFormat, const BITMAPINFOHEADER &bmiHeader);
};

#endif