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IltmfTargetAudioTypes::FindFormat

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#include "ltmf.h"

C Syntax

HRESULT IltmfTargetAudioTypes_FindFormat(pTargetAudioTypes, pTargetFormat,  Index)

C++ Syntax

HRESULT FindFormat(pTargetAudioTypes, pTargetFormat, pVal)

 

IltmfTargetAudioTypes *pTargetAudioTypes;

/* pointer to an interface */

IltmfTargetFormat* pTargetFormat;

/* pointer to IltmfTargetFormat interface */

long *pVal;

/* pointer to a variable */

Determines the index of a specific target audio type in the collection based on the audio properties in the IltmfTargetFormat interface.

Parameter

Description

pTargetAudioTypes

Pointer to an IltmfTargetAudioTypes Interface.

pTargetFormat

pointer to IltmfTargetFormat interface that contains audio properties which is the same as the target audio type's properties.

pVal

Pointer to a variable that receives the zero based index of the matching target audio type. 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 MediaFoundation documentation.

Comments

The audio properties that are used in the search criteria are IltmfTargetFormat::get_AudioAvgBytesPerSecond, IltmfTargetFormat::get_AudioBitsPerSample, IltmfTargetFormat::get_AudioNumChannels and IltmfTargetFormat::get_AudioSamplesPerSecond.

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

Elements:

IltmfTargetAudioTypes::get_Count, IltmfTargetAudioTypes::Item, IltmfTargetAudioTypes::Find

Topics:

Media Foundation Function Group

Example

For a C++ example, refer to Recompressing MP4 File Example for C++.

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