CFilterTitleOverlay.obj : error LNK2001: unresolved external symbol "public: virtual unsigned long __stdcall CBaseFilter::NonDelegatingRelease(void) " (?NonDelegatingRelease@CBaseFilter@@UAGKXZ) CFilterTitleOverlay.obj : error LNK2001: unresolved external symbol "public: __thiscall CTransInPlaceFilter::CTransInPlaceFilter(char *,struct IUnknown *,struct _GUID const &,long *,bool) " (??0CTransInPlaceFilter@@QAE@PADPAUIUnknown@@ABU_GUID@@PAJ_N @Z) CFilterTitleOverlay.obj : error LNK2001: unresolved external symbol "public: __thiscall CMediaType::CMediaType(class CMediaType const &,long *) " (??0CMediaType@@QAE@ABV0@PAJ@Z) Debug/Hqtlystd.ax : fatal error LNK1120: 3 unresolved externals Error executing link.exe. Hqtlystd.ax - 4 error(s), 0 warning(s)
解决办法: 需要将directshow安装目录下的classbases程序执行一遍
