IltmmAudioFormats::Find

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#include "ltmm.h"

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 */

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

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.

Returns

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.

Required DLLs and Libraries

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.

Win32, x64

Elements:	IltmmAudioFormats::get_Count, IltmmAudioFormats::Item, IltmmAudioFormats::get_Selection, IltmmAudioFormats::put_Selection
Topics:	Multimedia Function Group