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//
// wdelayf_example.c
//
// SEE ALSO: bufferf_example.c
// windowf_example.c
#include <stdio.h>
#include "liquid.h"
#define OUTPUT_FILENAME "wdelayf_example.m"
int main() {
unsigned int delay = 10;
unsigned int num_samples = 64;
// create wdelay, all elements initialized to 0
wdelayf w = wdelayf_create(delay);
float y; // output
FILE * fid = fopen(OUTPUT_FILENAME,"w");
fprintf(fid,"%% %s : auto-generated file\n", OUTPUT_FILENAME);
fprintf(fid,"clear all;\n");
fprintf(fid,"close all;\n");
fprintf(fid,"num_samples = %u;\n", num_samples);
fprintf(fid,"delay = %u;\n", delay);
// push several elements
unsigned int i;
float x;
for (i=0; i<num_samples; i++) {
if (i==0) x = 1.0f;
else x = 0.0f;
wdelayf_push(w, x);
wdelayf_read(w, &y);
printf("%4u : %12.8f\n", i, y);
fprintf(fid,"x(%4u) = %12.8f; y(%4u) = %12.8f;\n", i+1, x, i+1, y);
}
wdelayf_print(w);
fprintf(fid,"\n\n");
fprintf(fid,"t = 0:(num_samples-1);\n");
fprintf(fid,"figure;\n");
fprintf(fid,"plot(t,x,t,y);\n");
fclose(fid);
printf("results written to %s.\n", OUTPUT_FILENAME);
// clean it up
wdelayf_destroy(w);
printf("done.\n");
return 0;
}
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