jamie@86: /* libxtract feature extraction library
jamie@86:  *  
jamie@86:  * Copyright (C) 2006 Jamie Bullock
jamie@86:  *
jamie@86:  * This program is free software; you can redistribute it and/or modify
jamie@86:  * it under the terms of the GNU General Public License as published by
jamie@86:  * the Free Software Foundation; either version 2 of the License, or
jamie@86:  * (at your option) any later version.
jamie@86:  *
jamie@86:  * This program is distributed in the hope that it will be useful,
jamie@86:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jamie@86:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jamie@86:  * GNU General Public License for more details.
jamie@86:  *
jamie@86:  * You should have received a copy of the GNU General Public License
jamie@86:  * along with this program; if not, write to the Free Software
jamie@86:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
jamie@86:  * USA.
jamie@86:  */
jamie@29: 
jamie@29: #include "xtract/libxtract.h"
jamie@29: #include <stdio.h>
jamie@29: 
jamie@86: int main(void) {
jamie@29: 
jamie@120:     float mean = 0, vector[] = {.1, .2, .3, .4, -.5, -.4, -.3, -.2, -.1},
jamie@120:           spectrum[10];
jamie@120:     int n, N = 9;
jamie@120:     float argf[4];
jamie@120: 
jamie@120:     argf[0] = 8000.f;
jamie@120:     argf[1] = XTRACT_MAGNITUDE_SPECTRUM;
jamie@120:     argf[2] = 0.f;
jamie@120:     argf[3] = 0.f;
jamie@29:     
jamie@120:     xtract[XTRACT_MEAN]((void *)&vector, N, NULL, (void *)&mean);
jamie@120:     xtract_init_fft(N, XTRACT_SPECTRUM);
jamie@120:     xtract[XTRACT_SPECTRUM]((void *)&vector, N, &argf[0], (void *)&spectrum[0]);
jamie@29: 
jamie@121:     printf("\nThe mean of [.1, .2, .3, .4, -.5, -.4, -.3, -.2, -.1] = %.1f\n\n", mean);
jamie@120:     printf("\nResults of xtract_spectrum():\n");
jamie@120: 
jamie@120:     for(n = 0; n < N; n++){
jamie@120:         printf("%.3f\t", spectrum[n]);
jamie@120:     }
jamie@120:     printf("\n");
jamie@120: 
jamie@29:     return 0;
jamie@29:     
jamie@29: }