IltmmMediaInfo::get_AudioChannels

Summary

Retrieves the number of audio channels for the current stream in the current source media file.

Syntax

#include "ltmm.h"

Language Syntax
C HRESULT IltmmMediaInfo_get_AudioChannels(pMediaInfo, pVal)
C++ HRESULT get_AudioChannels(pVal)

Parameters

IltmmMediaInfo *pMediaInfo

Pointer to an IltmmMediaInfo interface.

long *pVal

Pointer to a variable that receives the number of audio channels.

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 an audio stream.

The current source media file, set using IltmmMediaInfo::put_SourceFile, is the file for which the IltmmMediaInfo interface/object gets information. This function 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
Help Version 22.0.2023.1.26
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LEADTOOLS Multimedia C API Help

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.