iir.h File Reference

#include <ladspa-util.h>

Go to the source code of this file.

Classes
struct	iir_stage
struct	iirf

Macros
#define	gliirt   float
#define	CLAMP(x, mi, ma)
#define	MIN(a, b)
#define	MAX(a, b)
#define	ALLOC(type)
#define	ALLOCN(n, type)
#define	IIR_STAGE_LOWPASS   0
#define	IIR_STAGE_HIGHPASS   1
#define	IIR_STAGE_BANDPASS   2
#define	IIR_STAGE_BANDPASS_A   3

Typedefs
typedef struct iir_stage	iir_stage_t
typedef struct iirf	iirf_t

Functions
static iirf_t *	init_iirf_t (iir_stage_t *gt)
static void	free_iirf_t (iirf_t *iirf, iir_stage_t *gt)
static void	reset_iirf_t (iirf_t *iirf, iir_stage_t *gt, int n)
iir_stage_t *	init_iir_stage (int mode, int nstages, int na, int nb)
void	combine_iir_stages (int mode, iir_stage_t *gt, iir_stage_t *first, iir_stage_t *second, int upf, int ups)
void	free_iir_stage (iir_stage_t *gt)
void	calc_2polebandpass (iirf_t *iirf, iir_stage_t *gt, float fc, float bw, long sample_rate)
int	chebyshev (iirf_t *iirf, iir_stage_t *gt, int n, int mode, float fc, float pr)
static void	butterworth_stage (iir_stage_t *gt, int mode, float f, float r, long sample_rate)
static void	iir_process_buffer (iirf_t *iirf, iir_stage_t *gt, const float *indata, float *outdata, const long numSampsToProcess, int add)
static void	iir_process_buffer_1s_5 (iirf_t *iirf, iir_stage_t *gt, const float *indata, float *outdata, const long numSampsToProcess, int add)
static void	iir_process_buffer_ns_5 (iirf_t *iirf, iir_stage_t *gt, const float *indata, float *outdata, const long numSampsToProcess, int add)

Macro Definition Documentation

ALLOC

#define ALLOC

(

type

)

Value:

(type *)calloc(1, sizeof(type))

ALLOCN

#define ALLOCN	(		n,
			type )

Value:

(n == 0 ? NULL : (type *)calloc((n), sizeof(type)))

CLAMP

#define CLAMP	(		x,
			mi,
			ma )

Value:

( (x < mi) ? mi : ( (x>ma) ? ma : x))

gliirt

#define gliirt   float

IIR_STAGE_BANDPASS

#define IIR_STAGE_BANDPASS   2

IIR_STAGE_BANDPASS_A

#define IIR_STAGE_BANDPASS_A   3

IIR_STAGE_HIGHPASS

#define IIR_STAGE_HIGHPASS   1

IIR_STAGE_LOWPASS

#define IIR_STAGE_LOWPASS   0

MAX

#define MAX	(		a,
			b )

Value:

((a)>(b)?(a):(b))

MIN

#define MIN	(		a,
			b )

Value:

((a)<(b)?(a):(b))

Typedef Documentation

iir_stage_t

typedef struct iir_stage iir_stage_t

iirf_t

typedef struct iirf iirf_t

Function Documentation

butterworth_stage()

void butterworth_stage ( iir_stage_t * gt, int mode, float f, float r, long sample_rate )

inlinestatic

calc_2polebandpass()

void calc_2polebandpass	(	iirf_t *	iirf,
		iir_stage_t *	gt,
		float	fc,
		float	bw,
		long	sample_rate )

chebyshev()

int chebyshev	(	iirf_t *	iirf,
		iir_stage_t *	gt,
		int	n,
		int	mode,
		float	fc,
		float	pr )

combine_iir_stages()

void combine_iir_stages	(	int	mode,
		iir_stage_t *	gt,
		iir_stage_t *	first,
		iir_stage_t *	second,
		int	upf,
		int	ups )

free_iir_stage()

void free_iir_stage

(

iir_stage_t *

gt

)

free_iirf_t()

void free_iirf_t ( iirf_t * iirf, iir_stage_t * gt )

inlinestatic

iir_process_buffer()

void iir_process_buffer ( iirf_t * iirf, iir_stage_t * gt, const float * indata, float * outdata, const long numSampsToProcess, int add )

inlinestatic

iir_process_buffer_1s_5()

void iir_process_buffer_1s_5 ( iirf_t * iirf, iir_stage_t * gt, const float * indata, float * outdata, const long numSampsToProcess, int add )

inlinestatic

iir_process_buffer_ns_5()

void iir_process_buffer_ns_5 ( iirf_t * iirf, iir_stage_t * gt, const float * indata, float * outdata, const long numSampsToProcess, int add )

inlinestatic

init_iir_stage()

iir_stage_t * init_iir_stage	(	int	mode,
		int	nstages,
		int	na,
		int	nb )

init_iirf_t()

iirf_t * init_iirf_t ( iir_stage_t * gt )

inlinestatic

reset_iirf_t()

void reset_iirf_t ( iirf_t * iirf, iir_stage_t * gt, int n )

inlinestatic