diff options
Diffstat (limited to 'common/alcomplex.h')
| -rw-r--r-- | common/alcomplex.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/common/alcomplex.h b/common/alcomplex.h index 554886c4..f224cce2 100644 --- a/common/alcomplex.h +++ b/common/alcomplex.h @@ -3,22 +3,22 @@ #include <complex> +#include "alspan.h" + /** * Iterative implementation of 2-radix FFT (In-place algorithm). Sign = -1 is - * FFT and 1 is iFFT (inverse). Fills FFTBuffer[0...FFTSize-1] with the - * Discrete Fourier Transform (DFT) of the time domain data stored in - * FFTBuffer[0...FFTSize-1]. FFTBuffer is an array of complex numbers, FFTSize - * MUST BE power of two. + * FFT and 1 is iFFT (inverse). Fills the buffer with the Discrete Fourier + * Transform (DFT) of the time domain data stored in the buffer. The buffer is + * an array of complex numbers, and MUST BE power of two. */ -void complex_fft(std::complex<double> *FFTBuffer, int FFTSize, double Sign); +void complex_fft(const al::span<std::complex<double>> buffer, const double sign); /** * Calculate the complex helical sequence (discrete-time analytical signal) of * the given input using the discrete Hilbert transform (In-place algorithm). - * Fills Buffer[0...size-1] with the discrete-time analytical signal stored in - * Buffer[0...size-1]. Buffer is an array of complex numbers, size MUST BE - * power of two. + * Fills the buffer with the discrete-time analytical signal stored in the + * buffer. The buffer is an array of complex numbers and MUST BE power of two. */ -void complex_hilbert(std::complex<double> *Buffer, int size); +void complex_hilbert(const al::span<std::complex<double>> buffer); #endif /* ALCOMPLEX_H */ |