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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 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 "mfglobal.h"
HRESULT qt_wmf_getFourCC(IMFMediaType *type, DWORD *fourCC)
{
if (!fourCC)
return E_POINTER;
HRESULT hr = S_OK;
GUID guidSubType = GUID_NULL;
if (SUCCEEDED(hr))
hr = type->GetGUID(MF_MT_SUBTYPE, &guidSubType);
if (SUCCEEDED(hr))
*fourCC = guidSubType.Data1;
return hr;
}
MFRatio qt_wmf_getPixelAspectRatio(IMFMediaType *type)
{
MFRatio ratio = { 0, 0 };
HRESULT hr = S_OK;
hr = MFGetAttributeRatio(type, MF_MT_PIXEL_ASPECT_RATIO, (UINT32*)&ratio.Numerator, (UINT32*)&ratio.Denominator);
if (FAILED(hr)) {
ratio.Numerator = 1;
ratio.Denominator = 1;
}
return ratio;
}
bool qt_wmf_areMediaTypesEqual(IMFMediaType *type1, IMFMediaType *type2)
{
if (!type1 && !type2)
return true;
else if (!type1 || !type2)
return false;
DWORD dwFlags = 0;
HRESULT hr = type1->IsEqual(type2, &dwFlags);
return (hr == S_OK);
}
HRESULT qt_wmf_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height)
{
float fOffsetX = qt_wmf_MFOffsetToFloat(area.OffsetX);
float fOffsetY = qt_wmf_MFOffsetToFloat(area.OffsetY);
if ( ((LONG)fOffsetX + area.Area.cx > (LONG)width) ||
((LONG)fOffsetY + area.Area.cy > (LONG)height) )
return MF_E_INVALIDMEDIATYPE;
else
return S_OK;
}
bool qt_wmf_isSampleTimePassed(IMFClock *clock, IMFSample *sample)
{
if (!sample || !clock)
return false;
HRESULT hr = S_OK;
MFTIME hnsTimeNow = 0;
MFTIME hnsSystemTime = 0;
MFTIME hnsSampleStart = 0;
MFTIME hnsSampleDuration = 0;
hr = clock->GetCorrelatedTime(0, &hnsTimeNow, &hnsSystemTime);
if (SUCCEEDED(hr))
hr = sample->GetSampleTime(&hnsSampleStart);
if (SUCCEEDED(hr))
hr = sample->GetSampleDuration(&hnsSampleDuration);
if (SUCCEEDED(hr)) {
if (hnsSampleStart + hnsSampleDuration < hnsTimeNow)
return true;
}
return false;
}
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