Function aubio_sys::aubio_fft_do

pub unsafe extern "C" fn aubio_fft_do(
    s: *mut aubio_fft_t, 
    input: *const fvec_t, 
    spectrum: *mut cvec_t
)

compute forward FFT

\param s fft object as returned by new_aubio_fft \param input input signal \param spectrum output spectrum