Get audio data from buffer.
For planar format specify _cbAudioPlane: -1 auto size (from number of samples), 0 - interleaved.
Note: if _ppAudio is NULL then allocate internal buffer, else copy to specified buffer.

Public Overridable Sub BufferGet( _
   ByVal _bsLine As String, _
   ByRef _plSamples As Integer, _
   ByRef _ppbAudio As Long, _
   ByVal _cbAudioPlane As Integer, _
   ByVal _bsChannelsList As String _
) 

public virtual void BufferGet( 
   string _bsLine,
   out int _plSamples,
   out long _ppbAudio,
   int _cbAudioPlane,
   string _bsChannelsList
)

public procedure BufferGet( 
    _bsLine: String;
   Out  _plSamples: Integer;
   Out  _ppbAudio: Int64;
    _cbAudioPlane: Integer;
    _bsChannelsList: String
); virtual; 

public: virtual void BufferGet( 
   BSTR* _bsLine,
   [PARAMFLAG::Out] int _plSamples,
   [PARAMFLAG::Out] long _ppbAudio,
   int _cbAudioPlane,
   BSTR* _bsChannelsList
)