fir.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include "tools.h"

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Functions
void	fir (size_t n, float in[n], float out[n], float kernel[n], size_t ksize)
int	main (int argc, char *argv[])

Function Documentation

fir()

void fir	(	size_t	n,
		float	in[n],
		float	out[n],
		float	kernel[n],
		size_t	ksize
	)

Definition at line 5 of file fir.c.

{
    size_t i, j;
    for( i = 0; i < n - ksize + 1; ++i )
        for( j = 0; j < ksize; ++j )
            out[ i ] += in[ i + j ] * kernel[ j ];
}

References out.

Referenced by main().

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main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 14 of file fir.c.

                                  {
    size_t i;
    size_t n;
    
    if (argc<3)
    {
            fprintf(stderr, "Usage: %s size data_file\n", argv[0]);
            return 1;
    }
    n = atoi(argv[1]);
    if (n<=100)
            n=100;
    {
        float (*in)[n],(*out)[n],(*kernel)[n];
        in=malloc(sizeof(float)*n);
        out=calloc(n,sizeof(float));
        kernel=malloc(sizeof(float)*n);
        init_data_file(argv[2]);
        init_data_float(in, n);
        init_data_float(kernel, n);
        close_data_file();
        fir(n,*in,*out,*kernel,n/8);
        print_array_float("res", out, n);
        free(out);
        free(in);
        free(kernel);
    }
    return 0;
}

References close_data_file(), fir(), fprintf(), free(), init_data_file(), init_data_float(), malloc(), out, and print_array_float().

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