IltmmMediaInfo::get_StreamSubtype

Summary

Retrieves the name of the stream subtype, of the current stream in the source media file.

Syntax

#include "ltmm.h"

Language	Syntax
C	HRESULT IltmmMediaInfo_get_StreamSubtype (pMediaInfo, pVal)
C++	HRESULT get_StreamTypeName(pVal)

Parameters

IltmmMediaInfo *pMediaInfo

Pointer to an IltmmMediaInfo Interface.

BSTR *pVal

Pointer to a string to be updated with the GUID of the subtype of the current stream.

Returns

Value	Meaning
S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

Call SysFreeString to free the memory allocated for the string when it is no longer needed.

To get the number of the current stream, call IltmmMediaInfo::get_CurrentStream.

To set the current stream, call IltmmMediaInfo::put_CurrentStream. Once the current stream has been set, information about that stream can be obtained by calling any of the following functions:

Language	Example
C	Retrieving Media File Information
C++	Retrieving Media File Information

IltmmMediaInfo::get_StreamSubtype

Summary

Syntax

Parameters

IltmmMediaInfo *pMediaInfo

BSTR *pVal

Returns

Comments

Required DLLs and Libraries

Platforms

See Also

Functions

Topics

Example