Mercurial > hg > peckfft
comparison peck_fftr.c @ 3:3b31bd44a09f
cleanup
| author | Peter Meerwald <p.meerwald@bct-electronic.com> |
|---|---|
| date | Fri, 16 Sep 2011 13:08:20 +0200 |
| parents | 723f588b82ac |
| children | 2d6c49fcafcb |
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| 2:3d08140650d8 | 3:3b31bd44a09f |
|---|---|
| 56 for (i = 0; i < nfft/2; ++i) { | 56 for (i = 0; i < nfft/2; ++i) { |
| 57 float phase = | 57 float phase = |
| 58 -3.14159265359f * ((float) (i+1) / nfft + 0.5f); | 58 -3.14159265359f * ((float) (i+1) / nfft + 0.5f); |
| 59 if (inverse_fft) | 59 if (inverse_fft) |
| 60 phase *= -1; | 60 phase *= -1; |
| 61 kf_cexp(st->super_twiddles+i,phase); | 61 kf_cexp(st->super_twiddles+i, phase); |
| 62 } | 62 } |
| 63 return st; | 63 return st; |
| 64 } | 64 } |
| 65 | 65 |
| 66 void peck_fftr(peck_fftr_cfg st, const peck_fft_scalar *timedata, peck_fft_cpx *freqdata) { | 66 void peck_fftr(peck_fftr_cfg st, const peck_fft_scalar *timedata, peck_fft_cpx *freqdata) { |