bbfccc7135
Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Change-Id: I1c6faa4f59f8eca54f01ef20941fa60161dd7872 Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
150 lines
4.3 KiB
C++
150 lines
4.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef MFGLOBAL_H
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#define MFGLOBAL_H
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#include <mfapi.h>
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#include <mfidl.h>
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#include <Mferror.h>
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template<class T>
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class AsyncCallback : public IMFAsyncCallback
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{
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public:
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typedef HRESULT (T::*InvokeFn)(IMFAsyncResult *asyncResult);
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AsyncCallback(T *parent, InvokeFn fn) : m_parent(parent), m_invokeFn(fn)
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{
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}
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// IUnknown
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STDMETHODIMP QueryInterface(REFIID iid, void** ppv)
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{
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if (!ppv)
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return E_POINTER;
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if (iid == __uuidof(IUnknown)) {
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*ppv = static_cast<IUnknown*>(static_cast<IMFAsyncCallback*>(this));
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} else if (iid == __uuidof(IMFAsyncCallback)) {
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*ppv = static_cast<IMFAsyncCallback*>(this);
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} else {
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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}
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STDMETHODIMP_(ULONG) AddRef() {
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// Delegate to parent class.
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return m_parent->AddRef();
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}
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STDMETHODIMP_(ULONG) Release() {
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// Delegate to parent class.
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return m_parent->Release();
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}
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// IMFAsyncCallback methods
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STDMETHODIMP GetParameters(DWORD*, DWORD*)
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{
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// Implementation of this method is optional.
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return E_NOTIMPL;
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}
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STDMETHODIMP Invoke(IMFAsyncResult* asyncResult)
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{
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return (m_parent->*m_invokeFn)(asyncResult);
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}
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T *m_parent;
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InvokeFn m_invokeFn;
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};
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template <class T> void qt_wmf_safeRelease(T **ppT)
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{
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if (*ppT) {
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(*ppT)->Release();
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*ppT = NULL;
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}
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}
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template <class T>
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void qt_wmf_copyComPointer(T* &dest, T *src)
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{
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if (dest)
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dest->Release();
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dest = src;
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if (dest)
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dest->AddRef();
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}
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HRESULT qt_wmf_getFourCC(IMFMediaType *type, DWORD *fourCC);
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MFRatio qt_wmf_getPixelAspectRatio(IMFMediaType *type);
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bool qt_wmf_areMediaTypesEqual(IMFMediaType *type1, IMFMediaType *type2);
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HRESULT qt_wmf_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height);
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bool qt_wmf_isSampleTimePassed(IMFClock *clock, IMFSample *sample);
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inline float qt_wmf_MFOffsetToFloat(const MFOffset& offset)
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{
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return offset.value + (float(offset.fract) / 65536);
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}
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inline MFOffset qt_wmf_makeMFOffset(float v)
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{
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MFOffset offset;
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offset.value = short(v);
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offset.fract = WORD(65536 * (v-offset.value));
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return offset;
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}
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inline MFVideoArea qt_wmf_makeMFArea(float x, float y, DWORD width, DWORD height)
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{
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MFVideoArea area;
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area.OffsetX = qt_wmf_makeMFOffset(x);
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area.OffsetY = qt_wmf_makeMFOffset(y);
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area.Area.cx = width;
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area.Area.cy = height;
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return area;
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}
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inline HRESULT qt_wmf_getFrameRate(IMFMediaType *pType, MFRatio *pRatio)
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{
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return MFGetAttributeRatio(pType, MF_MT_FRAME_RATE, (UINT32*)&pRatio->Numerator, (UINT32*)&pRatio->Denominator);
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}
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#endif // MFGLOBAL_H
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