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simplified testing (hopefully)

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This commit is contained in:
Mark Borgerding
2003-08-13 01:54:21 +00:00
parent f906b47946
commit 1cd00ce9f5
3 changed files with 105 additions and 105 deletions
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62
tools/fftutil.c
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@ -16,6 +16,7 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <getopt.h>
#include "kiss_fft.h"
@ -23,25 +24,56 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# define NFFT 1024
#endif
void fft_file(FILE * fin,FILE * fout,int nfft,int isinverse)
{
void *st;
kiss_fft_cpx * buf;
buf = (kiss_fft_cpx*)malloc(sizeof(kiss_fft_cpx) * nfft );
st = kiss_fft_alloc( nfft ,isinverse );
while ( fread( buf , sizeof(kiss_fft_cpx) * nfft ,1, fin ) > 0 ) {
kiss_fft( st , buf );
fwrite( buf , sizeof(kiss_fft_cpx) , nfft , fout );
}
free(st);
free(buf);
}
int main(int argc,char ** argv)
{
kiss_fft_cpx buf[NFFT];
void *st;
#ifdef INVERSE_FFT
int inverse_fft=1;
#else
int inverse_fft=0;
#endif
st = kiss_fft_alloc( NFFT ,inverse_fft );
while ( fread( buf , sizeof(kiss_fft_cpx) , NFFT , stdin ) > 0 ) {
kiss_fft( st , buf );
fwrite( buf , sizeof(kiss_fft_cpx) , NFFT , stdout );
int nfft=1024;
int isinverse=0;
FILE *fin=stdin;
FILE *fout=stdout;
while (1) {
int c=getopt(argc,argv,"n:i");
if (c==-1) break;
switch (c) {
case 'n':nfft = atoi(optarg);break;
case 'i':isinverse=1;break;
}
}
free(st);
if ( optind < argc ) {
if (strcmp("-",argv[optind]) !=0)
fin = fopen(argv[optind],"rb");
++optind;
}
if ( optind < argc ) {
if ( strcmp("-",argv[optind]) !=0 )
fout = fopen(argv[optind],"wb");
++optind;
}
fft_file(fin,fout,nfft,isinverse);
if (fout!=stdout) fclose(fout);
if (fin!=stdin) fclose(fin);
return 0;
}