avir::CFltBuffer Class Reference

Buffer class for parametrized low-pass filter. More...

#include <avir.h>

Inheritance diagram for avir::CFltBuffer:

Public Member Functions
bool	operator== (const CFltBuffer &b2) const
	Returns true, if both filters have same parameters.
Public Member Functions inherited from avir::CBuffer< double >
	CBuffer (const CBuffer &Source)
	Completely copies the specified buffer.
	CBuffer (const int aCapacity, const int aAlignment=0)
	Creates the buffer with the specified capacity.
void	alloc (const int aCapacity, const int aAlignment=0)
	Allocates memory so that the specified number of elements can be stored in this buffer object.
void	forceCapacity (const int NewCapacity)
	"Forces" this buffer to have an arbitary capacity.
void	free ()
	Deallocates any previously allocated buffer.
int	getCapacity () const
	Returns the capacity of this element buffer.
void	increaseCapacity (const int NewCapacity, const bool DoDataCopy=true)
	Reallocates this buffer to a larger size.
	operator double * () const
	Returns pointer to the first buffer element.
CBuffer &	operator= (const CBuffer &Source)
	Completely copies the specified buffer.
void	truncateCapacity (const int NewCapacity)
	"Truncates" (reduces) capacity of this buffer, without reallocating it.
void	updateCapacity (const int ReqCapacity)
	Increases capacity so that the specified number of elements can be stored.

Public Attributes
double	Alpha
	Peaked Cosine window function Alpha parameter.
double	DCGain
	DC gain applied to the filter.
double	Freq
	Low-pass filter's corner frequency.
double	Len2
	Half-length (non-truncated) of low-pass filters, in samples (taps).

Detailed Description

Buffer class for parametrized low-pass filter.

This class extends the CBuffer< double > class by adding several variables that define a symmetric-odd FIR low-pass filter windowed by Peaked Cosine window function. This class can be used to compare filters without comparing their buffer contents.

Member Function Documentation

operator==()

bool avir::CFltBuffer::operator==

(

const CFltBuffer &

b2

)

const

Returns true, if both filters have same parameters.

Parameters

b2	Filter buffer to compare this object to.