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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "evrhelpers.h"
HRESULT qt_evr_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;
}
bool qt_evr_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_evr_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height)
{
float fOffsetX = qt_evr_MFOffsetToFloat(area.OffsetX);
float fOffsetY = qt_evr_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_evr_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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