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分享怎样获取不同视频文件的类型
我想获取不同视频文件的类型，比如以avi为扩展名的文件，就有好几种格式，我怎样来获取它的格式呢？再比如wmv的有wmv3,wmv9的，怎样来取得呢？
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DentistryDoctor 2006-01-07
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IFileSourceFilter::GetCurFile
The GetCurFile method retrieves the name and media type of the current file.
Syntax
HRESULT GetCurFile(
LPOLESTR *ppszFileName,
AM_MEDIA_TYPE *pmt
);
Parameters
ppszFileName
[out] Address of a pointer that receives the name of the file, as an OLESTR type.
pmt
[out] Pointer to an AM_MEDIA_TYPE structure that receives the media type. This parameter can by NULL, in which case the method does not return the media type.
Return Values
The GetCurFile method retrieves the name and media type of the current file.
Syntax
HRESULT GetCurFile(
LPOLESTR *ppszFileName,
AM_MEDIA_TYPE *pmt
);
Parameters
ppszFileName
[out] Address of a pointer that receives the name of the file, as an OLESTR type.
pmt
[out] Pointer to an AM_MEDIA_TYPE structure that receives the media type. This parameter can by NULL, in which case the method does not return the media type.
Return Values
蒋晟 2006-01-05
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你可以用DirectShow的File Source Filter来取Media Type
