revsc.c File Reference

#include <math.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "base.h"
#include "revsc.h"

Macros
#define	DEFAULT_SRATE   44100.f
#define	MIN_SRATE   5000.0
#define	MAX_SRATE   1000000.0
#define	MAX_PITCHMOD   20.0
#define	DELAYPOS_SHIFT   28
#define	DELAYPOS_SCALE   0x10000000
#define	DELAYPOS_MASK   0x0FFFFFFF
#define	M_PI   3.14159265358979323846 /* pi */

Functions
static int	delay_line_max_samples (SPFLOAT sr, SPFLOAT iPitchMod, int n)
static int	init_delay_line (sp_revsc *p, sp_revsc_dl *lp, int n)
static int	delay_line_bytes_alloc (SPFLOAT sr, SPFLOAT iPitchMod, int n)
int	sp_revsc_create (sp_revsc **p)
int	sp_revsc_init (sp_data *sp, sp_revsc *p)
int	sp_revsc_destroy (sp_revsc **p)
static void	next_random_lineseg (sp_revsc *p, sp_revsc_dl *lp, int n)
int	sp_revsc_compute (sp_data *sp, sp_revsc *p, SPFLOAT *in1, SPFLOAT *in2, SPFLOAT *out1, SPFLOAT *out2)

Variables
static const SPFLOAT	reverbParams [8][4]
static const SPFLOAT	outputGain = 0.35f
static const SPFLOAT	jpScale = 0.25

Macro Definition Documentation

DEFAULT_SRATE

#define DEFAULT_SRATE   44100.f

DELAYPOS_MASK

#define DELAYPOS_MASK   0x0FFFFFFF

DELAYPOS_SCALE

#define DELAYPOS_SCALE   0x10000000

DELAYPOS_SHIFT

#define DELAYPOS_SHIFT   28

M_PI

#define M_PI   3.14159265358979323846 /* pi */

MAX_PITCHMOD

#define MAX_PITCHMOD   20.0

MAX_SRATE

#define MAX_SRATE   1000000.0

MIN_SRATE

#define MIN_SRATE   5000.0

Function Documentation

delay_line_bytes_alloc()

int delay_line_bytes_alloc ( SPFLOAT sr, SPFLOAT iPitchMod, int n )

static

delay_line_max_samples()

int delay_line_max_samples ( SPFLOAT sr, SPFLOAT iPitchMod, int n )

static

init_delay_line()

int init_delay_line ( sp_revsc * p, sp_revsc_dl * lp, int n )

static

next_random_lineseg()

void next_random_lineseg ( sp_revsc * p, sp_revsc_dl * lp, int n )

static

sp_revsc_compute()

int sp_revsc_compute	(	sp_data *	sp,
		sp_revsc *	p,
		SPFLOAT *	in1,
		SPFLOAT *	in2,
		SPFLOAT *	out1,
		SPFLOAT *	out2 )

sp_revsc_create()

int sp_revsc_create

(

sp_revsc **

p

)

sp_revsc_destroy()

int sp_revsc_destroy

(

sp_revsc **

p

)

sp_revsc_init()

int sp_revsc_init	(	sp_data *	sp,
		sp_revsc *	p )

Variable Documentation

jpScale

const SPFLOAT jpScale = 0.25

static

outputGain

const SPFLOAT outputGain = 0.35f

static

reverbParams

const SPFLOAT reverbParams[8][4]

static

Initial value:

                                  = {
    { (2473.f / DEFAULT_SRATE), 0.0010f, 3.100f,  1966.f },
    { (2767.f / DEFAULT_SRATE), 0.0011f, 3.500f, 29491.f },
    { (3217.f / DEFAULT_SRATE), 0.0017f, 1.110f, 22937.f },
    { (3557.f / DEFAULT_SRATE), 0.0006f, 3.973f,  9830.f },
    { (3907.f / DEFAULT_SRATE), 0.0010f, 2.341f, 20643.f },
    { (4127.f / DEFAULT_SRATE), 0.0011f, 1.897f, 22937.f },
    { (2143.f / DEFAULT_SRATE), 0.0017f, 0.891f, 29491.f },
    { (1933.f / DEFAULT_SRATE), 0.0006f, 3.221f, 14417.f }
}