directshow配置总结
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●dxtrans.h文件找不到（在qedit.h文件中包含dxtrans.h时出现的错误）solution:
(1)这是VS2008里的
在D:\Program Files\Microsoft Visual Studio 9.0搜索dxtrans.h
复制到:\Program Files\Microsoft Visual Studio 9.0\VC\include
(2) 或者在引用qedit.h 头文件的时候，加上这么几句：（此方法没有试验）
#pragma include_alias( "dxtrans.h", "qedit.h" )
#define __IDxtCompositor_INTERFACE_DEFINED__
#define __IDxtAlphaSetter_INTERFACE_DEFINED__
#define __IDxtJpeg_INTERFACE_DEFINED__
#define __IDxtKey_INTERFACE_DEFINED__
#include "Qedit.h"
●error LNK2001: unresolved external symbol "void __std
call FreeMediaType(struct _AMMediaType &)" (?FreeMe diaType@@YGXAAU_AMMediaType@@@Z)
**.obj : error LNK2001: unresolved external symbol "void __stdcall FreeMediaType(struct
_AMMediaType &)" (?FreeMediaType@@YGXAAU_AMMediaType@@@Z)
**.obj : error LNK2001: unresolved external symbol "public: __thiscall
CMediaType::~CMediaType(void)" (??1CMediaType@@QAE@XZ)
**.obj : error LNK2001: unresolved external symbol "public: void __thiscall
CMediaType::SetSubtype(struct _GUID const *)"
(?SetSubtype@CMediaType@@QAEXPBU_GUID@@@Z)
**.obj : error LNK2001: unresolved external symbol "public: void __thiscall
CMediaType::SetType(struct _GUID const *)"
(?SetType@CMediaType@@QAEXPBU_GUID@@@Z)
**.obj : error LNK2001: unresolved external symbol "public: __thiscall
CMediaType::CMediaType(void)" (??0CMediaType@@QAE@XZ)
**.obj : error LNK2001: unresolved external symbol "int __stdcall lstrlenWInternal(unsigned short const *)" (?lstrlenWInternal@@YGHPBG@Z)
编译DirectShow\Samples\C++\DirectShow\BaseClasses工程，并在自己的程序中链接生成的lib文件。
Linking...
CDXGraph.obj : error LNK2001: unresolved external symbol
_CLSID_FilterGraph
CDXGraph.obj : error LNK2001: unresolved external symbol
_IID_IGraphBuilder
CDXGraph.obj : error LNK2001: unresolved external symbol
_TIME_FORMAT_MEDIA_TIME
CDXGraph.obj : error LNK2001: unresolved external symbol
_IID_IMediaSeeking
CDXGraph.obj : error LNK2001: unresolved external symbol
_IID_IVideoWindow
CDXGraph.obj : error LNK2001: unresolved external symbol _IID_IBasicAudio CDXGraph.obj : error LNK2001: unresolved external symbol _IID_IBasicVideo CDXGraph.obj : error LNK2001: unresolved external symbol
_IID_IMediaEventEx
CDXGraph.obj : error LNK2001: unresolved external symbol
_IID_IMediaControl
CDXGraph.obj : error LNK2001: unresolved external symbol "int __cdecl wsprintfWInternal(unsigned short *,unsigned short const *,...)"
(?wsprintfWInternal@@YAHPAGPBGZZ)
Debug/VOD_Player.exe : fatal error LNK1120: 10 unresolved externals
Error executing link.exe.
把strmiids.lib包含进工程
一. 第一步，设置INCLUDE及LIB目录
在把dxsdk中提供的baseclass编译通过后，用四种方式编译，会分别生成四个lib，一般只用到了
其中的Debug和Release文件，在tool|option|vc++ directories中包含的files中设置如下。
这里需要加入得include files有四种：
D:\SDK\DXSDK\Include
D:\SDK\DXSDK\Samples\C++\DirectShow\BaseClasses
D:\SDK\DXSDK\Samples\C++\DirectShow\Common
D:\SDK\DXSDK\Samples\C++\Common\Include (这里可能是Common)
(接下来才是VC原来的)