psdpng.c File Reference

#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <png.h>
#include "kiss_fft.h"
#include "kiss_fftr.h"

Classes
struct	rgb_t
Defines
#define	CHECKNULL(p)   if ( (p)==NULL ) do { fprintf(stderr,"CHECKNULL failed @ %s(%d): %s\n",__FILE__,__LINE__,#p );exit(1);} while(0)
Functions
static void	config (int argc, char **argv)
static void	val2rgb (float x, rgb_t *p)
static void	cpx2pixels (rgb_t *res, const float *fbuf, size_t n)
static void	transform_signal (void)
static void	make_png (void)
int	main (int argc, char **argv)
Variables
int	nfft = 1024
FILE *	fin = NULL
FILE *	fout = NULL
int	navg = 20
int	remove_dc = 0
int	nrows = 0
float *	vals = NULL
int	stereo = 0

---

Define Documentation

#define CHECKNULL

(

p

)

if ( (p)==NULL ) do { fprintf(stderr,"CHECKNULL failed @ %s(%d): %s\n",__FILE__,__LINE__,#p );exit(1);} while(0)

Referenced by make_png(), and transform_signal().

---

Function Documentation

static void config	(	int	argc,
		char **	argv
	)			[static]

References fin, fout, navg, nfft, remove_dc, and stereo.

Referenced by main().

static void val2rgb	(	float	x,
		rgb_t *	p
	)			[static]

References rgb_t::b, rgb_t::g, testkiss::pi, and rgb_t::r.

Referenced by cpx2pixels().

static void cpx2pixels	(	rgb_t *	res,
		const float *	fbuf,
		size_t	n
	)			[static]

References val2rgb().

Referenced by make_png().

static void transform_signal

(

void

)

[static]

References cfg, CHECKNULL, fin, kiss_fft_scalar, kiss_fftr(), kiss_fftr_alloc(), navg, nfft, nrows, remove_dc, stereo, and vals.

Referenced by main().

static void make_png

(

void

)

[static]

References CHECKNULL, cpx2pixels(), fout, nfft, nrows, and vals.

Referenced by main().

int main	(	int	argc,
		char **	argv
	)

References config(), fin, fout, make_png(), and transform_signal().

---

Variable Documentation

int nfft = 1024

FILE* fin = NULL

Referenced by config(), main(), and transform_signal().

FILE* fout = NULL

Referenced by config(), main(), and make_png().

int navg = 20

Referenced by config(), and transform_signal().

int remove_dc = 0

Referenced by config(), and transform_signal().

int nrows = 0

Referenced by make_png(), and transform_signal().

float* vals = NULL

Referenced by make_png(), and transform_signal().

int stereo = 0

Referenced by config(), and transform_signal().