IltmmAudioFormats::Find

C Syntax

HRESULT IltmmAudioFormats_Find(pAudioFormats, Freq, Bits, Channels, Index)

C++ Syntax

HRESULT Find(pAudioFormats, Freq, Bits, Channels, Index)

IltmmAudioFormats *pAudioFormats;

/* pointer to an interface */

long Freq;

/* frequency*/

long Bits;

/* bits per sample */

long Channels;

/* number of channels */

long *Index;

/* pointer to a variable */

Parameter

Description

pAudioFormats

Pointer to an IltmmAudioFormats Interface.

SubType

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..

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.

Channels

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

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.

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.

LTMM

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

Elements:

IltmmAudioFormats::get_Count, IltmmAudioFormats::Item, IltmmAudioFormats::get_Selection, IltmmAudioFormats::put_Selection

Topics:

Multimedia Function Group