Copyright © 2011-2018 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 EncodeWMA class section.

For further information about available encoding formats see the EncodeFormatsMan class.

 

 

Syntax

 

[Visual Basic]

Public Function GetEncodingCBR (

nFrequency as Int32,

nChannels as Int16,

nEncodeMode as enumWmaEncodeModes,

nBitrateIndex as Int16

) as Int32


 

[C#]

public Int32 GetEncodingCBR (

Int32 nFrequency,

Int16 nChannels,

enumWmaEncodeModes nEncodeMode,

Int16 nBitrateIndex

);


 

[C++]

public: Int32 GetEncodingCBR (

Int32 nFrequency,

Int16 nChannels,

enumWmaEncodeModes nEncodeMode,

Int16 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 costant bitrate