CODEWITHSUNDEEP
visual-studio-2010visual-c++directshow
Dany
Dany

Reputation: 2174

Getting Unknown errors in DirectShow Project

i downloaded an direct show project from the link GMFBridge - Multiple Graphs in DirectShow

I added the following libraries

C:\Program Files\Microsoft SDKs\Windows\v7.1\Samples\multimedia\directshow\baseclasses\Debug\strmbasd.lib

C:\Program Files\Microsoft SDKs\Windows\v7.1\Lib\winmm.lib

C:\ProgramFiles (x86)\Microsoft Visual Studio 10.0\VC\lib\comsuppw.lib

When i build the project i am getting the errors:-

error LNK2001: unresolved external symbol "public: virtual long __stdcall CBaseFilter::FindPin(unsigned short const *,struct IPin * *)" (?FindPin@CBaseFilter@@UAGJPBGPAPAUIPin@@@Z)    
error LNK2001: unresolved external symbol "public: virtual long __stdcall CBaseFilter::FindPin(unsigned short const *,struct IPin * *)" (?FindPin@CBaseFilter@@UAGJPBGPAPAUIPin@@@Z)    GMFBridge\source.obj    GMFBridge
error LNK2001: unresolved external symbol "public: virtual long __stdcall CBaseFilter::QueryVendorInfo(unsigned short * *)" (?QueryVendorInfo@CBaseFilter@@UAGJPAPAG@Z)         \GMFBridge\sink.obj GMFBridge
error LNK2001: unresolved external symbol "public: virtual long __stdcall CBaseFilter::QueryVendorInfo(unsigned short * *)" (?QueryVendorInfo@CBaseFilter@@UAGJPAPAG@Z)         \GMFBridge\source.obj   GMFBridge
error LNK2019: unresolved external symbol "public: virtual long __stdcall CBaseFilter::JoinFilterGraph(struct IFilterGraph *,unsigned short const *)" (?JoinFilterGraph@CBaseFilter@@UAGJPAUIFilterGraph@@PBG@Z) referenced in function "public: virtual long __stdcall BridgeSink::JoinFilterGraph(struct IFilterGraph *,unsigned short const *)" (?JoinFilterGraph@BridgeSink@@UAGJPAUIFilterGraph@@PBG@Z)    \GMFBridge (1)\GMFBridge\sink.obj   GMFBridge
error LNK2001: unresolved external symbol "public: virtual long __stdcall CBaseFilter::JoinFilterGraph(struct IFilterGraph *,unsigned short const *)" (?JoinFilterGraph@CBaseFilter@@UAGJPAUIFilterGraph@@PBG@Z)    \GMFBridge\source.obj   GMFBridge
error LNK2019: unresolved external symbol "public: __thiscall CBaseInputPin::CBaseInputPin(char const *,class CBaseFilter *,class CCritSec *,long *,unsigned short const *)" (??0CBaseInputPin@@QAE@PBDPAVCBaseFilter@@PAVCCritSec@@PAJPBG@Z) referenced in function "public: __thiscall BridgeSinkInput::BridgeSinkInput(class BridgeSink *,class BridgeStream *,class CCritSec *,long *,unsigned short const *)" (??0BridgeSinkInput@@QAE@PAVBridgeSink@@PAVBridgeStream@@PAVCCritSec@@PAJPBG@Z)  \GMFBridge\sink.obj GMFBridge
error LNK2001: unresolved external symbol "public: virtual long __stdcall CBasePin::QueryId(unsigned short * *)" (?QueryId@CBasePin@@UAGJPAPAG@Z)   GMFBridge\sink.obj  GMFBridge
error LNK2001: unresolved external symbol "public: virtual long __stdcall CBasePin::QueryId(unsigned short * *)" (?QueryId@CBasePin@@UAGJPAPAG@Z)   )\GMFBridge\source.obj  GMFBridge
error LNK2019: unresolved external symbol "public: __thiscall CBaseOutputPin::CBaseOutputPin(char const *,class CBaseFilter *,class CCritSec *,long *,unsigned short const *)" (??0CBaseOutputPin@@QAE@PBDPAVCBaseFilter@@PAVCCritSec@@PAJPBG@Z) referenced in function "public: __thiscall BridgeSourceOutput::BridgeSourceOutput(class BridgeSource *,class BridgeStream *,class CCritSec *,long*,unsigned short const *)" (??0BridgeSourceOutput@@QAE@PAVBridgeSource@@PAVBridgeStream@@PAVCCritSec@@PAJPBG@Z)   \GMFBridge\source.obj   GMFBridge

Upvotes: 0

Views: 1937

Answers (2)

DarkUrse
DarkUrse

Reputation: 2280

Thank you, thank you, thank you so much Roman ( and March Hare by extension of course ). I would have voted up your answer if I was allowed to ( Not enough reputation to do so yet ). The March Hare FAQ was most definitely helpful, and particularly the 2nd answer of the question :

You have the "Treat wchar_t as built-in type" set differently in the baseclasses and the program

Upvotes: 2

Roman Ryltsov
Roman Ryltsov

Reputation: 69642

  1. The project itself and strmbasd library need to be built with the same project settings to link well
  2. The archive from GDCL website already has a pre-built binary (GMFBridge.dll) for you

Upvotes: 3

Related Questions