IltmfAudioFormats::Find

Summary

Retrieves the index of the audio format that matches the specified criteria (frequency, bits per sample and number of channels).

Syntax

#include "ltmf.h"

Parameters

IltmfAudioFormats *pAudioFormats

Pointer to an IltmfAudioFormats Interface.

long Freq

Value that represents the frequency, in Hertz, of the audio format to be found. Common values include: 8000, 11025, 16000, 22050, 32000, and 44100 Hz..

long Bits

Value the represents the number of bits per sample of the audio format to be found. Common values include 8- and 16-bits per sample.

long Channels

Value that represents the number of channels of the audio format to be found. Common values include 1 (mono) and 2 (stereo).

long *Index

Pointer to a variable that receives the zero-based index of the audio format matching the specified criteria. A value of 1 indicates that no match was found.

Returns

Required DLLs and Libraries

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

Platforms

Win32, x64.

See Also

Functions

• IltmfAudioFormats::get_Count
• IltmfAudioFormats::Item
• IltmfAudioFormats::get_Selection
• IltmfAudioFormats::put_Selection

Topics

• Media Foundation Function Group

Example

For a C++ example, refer to IltmfAudioFormats::get_Count Example for C++.