diff options
Diffstat (limited to 'src/plugins/wmf/mfglobal.cpp')
-rw-r--r-- | src/plugins/wmf/mfglobal.cpp | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/plugins/wmf/mfglobal.cpp b/src/plugins/wmf/mfglobal.cpp new file mode 100644 index 000000000..b9b609635 --- /dev/null +++ b/src/plugins/wmf/mfglobal.cpp @@ -0,0 +1,124 @@ +/**************************************************************************** +** +** 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; +} |