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
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[C++]
long control.EncodeFormats.WMA.GetEncodingCBR (
long nFrequency,
short nChannels
short nBitrateIndex
);
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Parameter
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Description
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nFrequency
|
Frequency expressed in Hertz (e.g. 44100)
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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
|
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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.
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WMA_ENCODE_CBR_PRO_16
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3
|
WMA Professional format at 16 bits per sample.
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WMA_ENCODE_CBR_PRO_24
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4
|
WMA Professional format at 24 bits per sample.
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nBitrateIndex
|
Number representing the zero-based index of the bitrate
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Return value
Value
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Meaning
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Negative value
|
An error occurred. Check the LastError property value in order to see the last error.
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> 0
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The requested encoding bitrate
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