运行《Windows Media 编程导向》中实例FilterASFStreaming所感

由于毕业设计是关于刘媒体方面的编程windows media编程导向，我便买了《DirectShow开发指南》、《Windows Media 编程导向》开始硬啃。不久便见到了问题。

运行《Windows Media 编程导向》中实例FilterASFStreaming时一直提醒错误信息:

Creating library Debug/hqasfstrm.lib and object Debug/hqasfstrm.exp

CFilterASFStreaming.obj : error LNK2001: unresolved external symbol "public: __thiscall CPosPassThru::CPosPassThru(char const *,struct IUnknown *,long *,struct IPin *)" (??0CPosPassThru@@QAE@PBDPAUIUnknown@@PAJPAUIPin@@@Z)

Debug/hqasfstrm.ax : fatal error LNK1120: 1 unresolved externals

Error executing link.exe.

上网查资料,查书,发觉是Library配置错误，将..BASECLASSES/DEBUG写成了..BASECLASSES/DEBUG Unicode于是改回来，发觉错误更多：

Linking...

Creating library Debug/hqasfstrm.lib and object Debug/hqasfstrm.exp

CAudioInputPin.obj : error LNK2001: unresolved external symbol "public: virtual long __thiscall CBaseInputPin::BreakConnect(void)" (?BreakConnect@CBaseInputPin@@UAEJXZ)

CVideoInputPin.obj : error LNK2001: unresolved external symbol "public: virtual long __thiscall CBaseInputPin::BreakConnect(void)" (?BreakConnect@CBaseInputPin@@UAEJXZ)

CXRenderedPin.obj : error LNK2001: unresolved external symbol "public: virtual long __thiscall CBaseInputPin::BreakConnect(void)" (?BreakConnect@CBaseInputPin@@UAEJXZ)

CFilterASFStreaming.obj : error LNK2001: unresolved external symbol "public: virtual unsigned long __stdcall CBaseFilter::NonDelegatingRelease(void)" (?NonDelegatingRelease@CBaseFilter@@UAGKXZ)

CVideoInputPin.obj : error LNK2001: unresolved external symbol _MEDIASUBTYPE_IYUV

Debug/hqasfstrm.ax : fatal error LNK1120: 3 unresolved externals

Error executing link.exe.

折腾了半天，突然发现自己的..BASECLASSES/DEBUG中没有Strmbasd.lib文件，却有baseclasses.lib文件！

怪哉！

难道DirectX安装有错windows media编程导向，于是下了另一个安装文件，卸载后再次安装，再按原方式修改一下，编译通过！

本文来自电脑杂谈，转载请注明本文网址：
http://www.pc-fly.com/a/tongxinshuyu/article-121131-1.html