snFIRFilter Class Reference

snFIRFilter implements a FIR filter that safes its own state for processing of consecutive data blocks. More...

#include <snFIRFilter.h>

Inheritance diagram for snFIRFilter:

Public Member Functions
	snFIRFilter (double *pdataIn, double *pdataOut, int pdata_len, double *pcoeff, int pfilter_order)
	implements a FIR filter More...
void	run ()
void	set_state (std::vector< double > s)
std::vector< double >	get_state ()
	~snFIRFilter ()

Private Member Functions
double *coeff	__attribute__ ((aligned(16)))
double *x	__attribute__ ((aligned(16)))
double *y	__attribute__ ((aligned(16)))
double *c	__attribute__ ((aligned(16)))
double *x2	__attribute__ ((aligned(16)))
double zerot[2]	__attribute__ ((aligned(16)))
double res[2]	__attribute__ ((aligned(16)))

Private Attributes
double *	state
double *	dataIn
double *	dataOut
int	n
int	filter_order

Detailed Description

snFIRFilter implements a FIR filter that safes its own state for processing of consecutive data blocks.

The coefficients can be altered after every filter step without erasing the filter state. The routine uses intrinsic SSE instruction if USE_SSE is defined.

Constructor & Destructor Documentation

snFIRFilter::snFIRFilter	(	double *	pdataIn,
		double *	pdataOut,
		int	pdata_len,
		double *	pcoeff,
		int	pfilter_order
	)

implements a FIR filter

Parameters

pdataIn	pointer to input array
pdataOut	pointer to output array
pn	number of input samples
pcoeff	pointer to coefficients array
pm	number of coefficients

snFIRFilter::~snFIRFilter

(

)

Member Function Documentation

double* coeff snFIRFilter::__attribute__ ( (aligned(16))  )

private

double* x snFIRFilter::__attribute__ ( (aligned(16))  )

private

double* y snFIRFilter::__attribute__ ( (aligned(16))  )

private

double* c snFIRFilter::__attribute__ ( (aligned(16))  )

private

double* x2 snFIRFilter::__attribute__ ( (aligned(16))  )

private

double zerot [2] snFIRFilter::__attribute__ ( (aligned(16))  )

private

double res [2] snFIRFilter::__attribute__ ( (aligned(16))  )

private

std::vector<double> snFIRFilter::get_state ( )

inline

void snFIRFilter::run

(

)

void snFIRFilter::set_state ( std::vector< double >  s )

inline

Member Data Documentation

double* snFIRFilter::dataIn

private

double* snFIRFilter::dataOut

private

int snFIRFilter::filter_order

private

int snFIRFilter::n

private

double* snFIRFilter::state

private

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The documentation for this class was generated from the following files:

• snFIRFilter.h
• snFIRFilter.cpp