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Diffstat (limited to 'src/plugins/wmf/mfglobal.h')
-rw-r--r-- | src/plugins/wmf/mfglobal.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/plugins/wmf/mfglobal.h b/src/plugins/wmf/mfglobal.h new file mode 100644 index 000000000..9ab24e370 --- /dev/null +++ b/src/plugins/wmf/mfglobal.h @@ -0,0 +1,157 @@ +/**************************************************************************** +** +** 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MFGLOBAL_H +#define MFGLOBAL_H + +#include <mfapi.h> +#include <mfidl.h> +#include <Mferror.h> + + +template<class T> +class AsyncCallback : public IMFAsyncCallback +{ +public: + typedef HRESULT (T::*InvokeFn)(IMFAsyncResult *asyncResult); + + AsyncCallback(T *parent, InvokeFn fn) : m_parent(parent), m_invokeFn(fn) + { + } + + // IUnknown + STDMETHODIMP QueryInterface(REFIID iid, void** ppv) + { + if (!ppv) + return E_POINTER; + + if (iid == __uuidof(IUnknown)) { + *ppv = static_cast<IUnknown*>(static_cast<IMFAsyncCallback*>(this)); + } else if (iid == __uuidof(IMFAsyncCallback)) { + *ppv = static_cast<IMFAsyncCallback*>(this); + } else { + *ppv = NULL; + return E_NOINTERFACE; + } + AddRef(); + return S_OK; + } + + STDMETHODIMP_(ULONG) AddRef() { + // Delegate to parent class. + return m_parent->AddRef(); + } + STDMETHODIMP_(ULONG) Release() { + // Delegate to parent class. + return m_parent->Release(); + } + + + // IMFAsyncCallback methods + STDMETHODIMP GetParameters(DWORD*, DWORD*) + { + // Implementation of this method is optional. + return E_NOTIMPL; + } + + STDMETHODIMP Invoke(IMFAsyncResult* asyncResult) + { + return (m_parent->*m_invokeFn)(asyncResult); + } + + T *m_parent; + InvokeFn m_invokeFn; +}; + +template <class T> void qt_wmf_safeRelease(T **ppT) +{ + if (*ppT) { + (*ppT)->Release(); + *ppT = NULL; + } +} + +template <class T> +void qt_wmf_copyComPointer(T* &dest, T *src) +{ + if (dest) + dest->Release(); + dest = src; + if (dest) + dest->AddRef(); +} + +HRESULT qt_wmf_getFourCC(IMFMediaType *type, DWORD *fourCC); +MFRatio qt_wmf_getPixelAspectRatio(IMFMediaType *type); +bool qt_wmf_areMediaTypesEqual(IMFMediaType *type1, IMFMediaType *type2); +HRESULT qt_wmf_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height); +bool qt_wmf_isSampleTimePassed(IMFClock *clock, IMFSample *sample); + +inline float qt_wmf_MFOffsetToFloat(const MFOffset& offset) +{ + return offset.value + (float(offset.fract) / 65536); +} + +inline MFOffset qt_wmf_makeMFOffset(float v) +{ + MFOffset offset; + offset.value = short(v); + offset.fract = WORD(65536 * (v-offset.value)); + return offset; +} + +inline MFVideoArea qt_wmf_makeMFArea(float x, float y, DWORD width, DWORD height) +{ + MFVideoArea area; + area.OffsetX = qt_wmf_makeMFOffset(x); + area.OffsetY = qt_wmf_makeMFOffset(y); + area.Area.cx = width; + area.Area.cy = height; + return area; +} + +inline HRESULT qt_wmf_getFrameRate(IMFMediaType *pType, MFRatio *pRatio) +{ + return MFGetAttributeRatio(pType, MF_MT_FRAME_RATE, (UINT32*)&pRatio->Numerator, (UINT32*)&pRatio->Denominator); +} + + +#endif // MFGLOBAL_H |