Hello I'm trying to compile opencv 3.4.1-dev for windows by using mingw32 but I get this error :
[ 64%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/src/layers/padding_layer.cpp.obj [ 64%] Building CXX object modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_vfw.cpp.obj In file included from C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:59:0: C:/Qt/Qt5.9.1/Tools/mingw530_32/i686-w64-mingw32/include/mfplay.h:77:50: error: 'MFP_MEDIAITEM_CHARACTERISTICS' has not been declared STDMETHOD_(HRESULT,GetCharacteristics)(THIS_ MFP_MEDIAITEM_CHARACTERISTICS pCharacteristics) PURE; ^ C:/Qt/Qt5.9.1/Tools/mingw530_32/i686-w64-mingw32/include/mfplay.h:79:46: error: 'IMFPMediaPlayer' has not been declared STDMETHOD_(HRESULT,GetMediaPlayer)(THIS_ IMFPMediaPlayer ppMediaPlayer) PURE; ^ In file included from C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:59:0: C:/Qt/Qt5.9.1/Tools/mingw530_32/i686-w64-mingw32/include/mfplay.h:158:50: error: 'MFVideoNormalizedRect' has not been declared STDMETHOD_(HRESULT,GetVideoSourceRect)(THIS_ MFVideoNormalizedRect *pnrcSource) PURE; ^ C:/Qt/Qt5.9.1/Tools/mingw530_32/i686-w64-mingw32/include/mfplay.h:173:56: error: 'MFVideoNormalizedRect' does not name a type STDMETHOD_(HRESULT,SetVideoSourceRect)(THIS_ const MFVideoNormalizedRect *pnrcSource) PURE; ^ C:/Qt/Qt5.9.1/Tools/mingw530_32/i686-w64-mingw32/include/mfplay.h:241:41: error: 'MFP_EVENT_HEADER' has not been declared STDMETHOD(OnMediaPlayerEvent)(THIS_ MFP_EVENT_HEADER *pEventHeader) PURE; ^ C:/Qt/Qt5.9.1/Tools/mingw530_32/i686-w64-mingw32/include/mfplay.h:333:3: error: 'MFP_CREDENTIAL_FLAGS' does not name a type MFP_CREDENTIAL_FLAGS flags; ^ C:/Qt/Qt5.9.1/Tools/mingw530_32/i686-w64-mingw32/include/mfplay.h:334:3: error: 'IMFNetCredential' does not name a type IMFNetCredential *pCredential; ^ C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:213:35: error: '_Deref_out_opt_' has not been declared _Check_return_ HRESULT CopyTo(_Deref_out_opt_ T ppT) ^ C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:213:51: error: declaration of 'int T' _Check_return_ HRESULT CopyTo(_Deref_out_opt_ T* ppT) ^ C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:136:11: error: shadows template parm 'class T' template <class t=""> ^ C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:213:52: error: expected ',' or '...' before '' token _Check_return_ HRESULT CopyTo(_Deref_out_opt_ T* ppT) ^ C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp: In member function 'HRESULT {anonymous}::ComPtr<t>::CopyTo(int)': C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:213:51: error: declaration of 'int T' _Check_return_ HRESULT CopyTo(_Deref_out_opt_ T** ppT) ^ C:\opencv\opencv\modules\videoio\src\cap_msmf.cpp:136:11: error: shadows template parm 'class T' template <class t="">
