#include "ltmm.h"

C Syntax

HRESULT IltmmMediaInfo_get_VideoCompression(pMediaInfo, pVal)

C++ Syntax

HRESULT get_VideoCompression(pVal)

IltmmMediaInfo *pMediaInfo;

pointer to an interface

long * pVal;

pointer to a variable

Retrieves the type of compression used for the current stream in the current source media file.




Pointer to an IltmmMediaInfo interface.


Pointer to a variable that receives the type of compression. Video compression type is indicated by a FOURCC value. For a list of FOURCC values, refer to the Microsoft documentation on FOURCC numbers.



The function was successful.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.


This function will fail if the current stream is not a video stream .

The current source media file, set using IltmmMediaInfo::put_SourceFile, is the file for which the IltmmMediaInfo interface/object gets information. IltmmMediaInfo::put_SourceFile must be called before calling any of the other IltmmMediaInfo functions used for retrieving information.

To set the current stream, call IltmmMediaInfo::put_CurrentStream.

Required DLLs and Libraries


For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.


Win32, x64

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