Copyright © 2008-2018 MultiMedia Soft

EncodeFormats.WMA.GetEncodingCBR method

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Remarks

 

Retrieves a specific encoding bitrate (for Constant Bitrate or CBR) supported by Windows Media components for a given frequency and number of channels.

The number of available bitrates can be obtained using the EncodeFormats.WMA.GetEncodingCBRCount method.

 

For further details about encoding in WMA format refer to the WMA object section.

For further information about available encoding formats see the EncodeFormats object.

 

 

Syntax

 

[Visual Basic]

control.EncodeFormats.WMA.GetEncodingCBR (

nFrequency as Long,

nChannels as Integer,

nEncodeMode as enumWmaEncodeModes,

nBitrateIndex as Integer

) as long


 

[C++]

long control.EncodeFormats.WMA.GetEncodingCBR (

long nFrequency,

short nChannels

short nBitrateIndex

);


 

 

Parameter

Description

 

 

nFrequency

Frequency expressed in Hertz (e.g. 44100)

nChannels

Number of channels.

Supported values are the following:

Value

Meaning

1

Mono audio stream

2

Stereo audio stream

4

3.1 audio stream

6

5.1 audio stream

8

7.1 audio stream

nEncodeMode

The encoding mode used for WMA (Windows Media Audio) format recording/encoding.

Supported values are the following:

Mnemonic Value

Numeric value

Meaning

WMA_ENCODE_CBR_STD_16

1

WMA Standard format at 16 bits per sample.

WMA_ENCODE_CBR_PRO_16

3

WMA Professional format at 16 bits per sample.

WMA_ENCODE_CBR_PRO_24

4

WMA Professional format at 24 bits per sample.

nBitrateIndex

Number representing the zero-based index of the bitrate

 

 

 

Return value

 

Value

Meaning

 

 

Negative value

An error occurred. Check the LastError property value in order to see the last error.

> 0

The requested encoding bitrate