IltmmMediaInfo::get_VideoCompression

Summary

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

Syntax

#include "ltmm.h"

Language Syntax
C HRESULT IltmmMediaInfo_get_VideoCompression(pMediaInfo, pVal)
C++ HRESULT get_VideoCompression(pVal)

Parameters

IltmmMediaInfo *pMediaInfo

Pointer to an IltmmMediaInfo interface.

long *pVal

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.

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

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

Platforms

Win32, x64.

See Also

Functions

Topics

Example

Language Example
C Retrieving Media File Information
C++ Retrieving Media File Information
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.