aubio
0.4.9
spectral/test-fft.c
#include <
aubio.h
>
int
main (
void
)
{
int
return_code = 0;
uint_t
i, n_iters = 100;
// number of iterations
uint_t
win_s = 512;
// window size
fvec_t
* in =
new_fvec
(win_s);
// input buffer
cvec_t
* fftgrain =
new_cvec
(win_s);
// fft norm and phase
fvec_t
* out =
new_fvec
(win_s);
// output buffer
// create fft object
aubio_fft_t
* fft =
new_aubio_fft
(win_s);
if
(!fft) {
return_code = 1;
goto
beach;
}
// fill input with some data
in->
data
[0] = 1;
in->
data
[1] = 2;
in->
data
[2] = 3;
in->
data
[3] = 4;
in->
data
[4] = 5;
in->
data
[5] = 6;
in->
data
[6] = 5;
in->
data
[7] = 6;
//fvec_print(in);
for
(i = 0; i < n_iters; i++) {
// execute stft
aubio_fft_do
(fft,in,fftgrain);
cvec_print
(fftgrain);
// execute inverse fourier transform
aubio_fft_rdo
(fft,fftgrain,out);
}
// cleam up
//fvec_print(out);
del_aubio_fft
(fft);
beach:
del_fvec
(in);
del_cvec
(fftgrain);
del_fvec
(out);
aubio_cleanup
();
return
return_code;
}
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