IltmmAudioFormats::Find
#include "ltmm.h"
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C Syntax |
HRESULT IltmmAudioFormats__Find(pAudioFormats, Freq, Bits, Channels, Index) |
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C++ Syntax |
HRESULT Find(pAudioFormats, Freq, Bits, Channels, Index) |
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IltmmAudioFormats *pAudioFormats; |
/* pointer to an interface */ |
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long Freq; |
/* frequency*/ |
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long Bits; |
/* bits per sample */ |
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long Channels; |
/* number of channels */ |
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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).
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Parameter |
Description |
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pAudioFormats |
Pointer to an IltmmAudioFormats Interface. |
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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.. |
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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. |
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Channels |
Value that represents the number of channels of the audio format to be found. Common values include 1 (mono) and 2 (stereo). |
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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
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S_OK |
The function was successful. |
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<> S_OK |
An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. |
Required DLLs and Libraries
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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
See Also
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Elements: |
IltmmAudioFormats::get_Count, IltmmAudioFormats::Item, IltmmAudioFormats::get_Selection, IltmmAudioFormats::put_Selection |
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Topics: |
Example
For a C example, refer to IltmmAudioFormats::get_Count Example for C.
For a C++ example, refer to IltmmAudioFormats::get_Count Example for C++.