rack::dsp::ComplexFFT Struct Reference

Complex-valued FFT context. More...

#include <fft.hpp>

Public Member Functions
	ComplexFFT (size_t length)
	~ComplexFFT ()
void	fftUnordered (const float *input, float *output)
	Performs the complex FFT.
void	ifftUnordered (const float *input, float *output)
	Performs the inverse complex FFT.
void	fft (const float *input, float *output)
void	ifft (const float *input, float *output)
void	scale (float *x)

Public Attributes
PFFFT_Setup *	setup
int	length

Detailed Description

Complex-valued FFT context.

length must be a multiple of 16.

Constructor & Destructor Documentation

ComplexFFT()

rack::dsp::ComplexFFT::ComplexFFT ( size_t length )

inline

~ComplexFFT()

rack::dsp::ComplexFFT::~ComplexFFT ( )

inline

Member Function Documentation

fftUnordered()

void rack::dsp::ComplexFFT::fftUnordered ( const float * input, float * output )

inline

Performs the complex FFT.

Input and output must be aligned using the above align*() functions. Input is 2*length elements. Output is 2*length elements.

ifftUnordered()

void rack::dsp::ComplexFFT::ifftUnordered ( const float * input, float * output )

inline

Performs the inverse complex FFT.

Input is 2*length elements. Output is 2*length elements. Scaling is such that FFT(IFFT(x)) = N*x.

fft()

void rack::dsp::ComplexFFT::fft ( const float * input, float * output )

inline

ifft()

void rack::dsp::ComplexFFT::ifft ( const float * input, float * output )

inline

scale()

void rack::dsp::ComplexFFT::scale ( float * x )

inline

Member Data Documentation

setup

PFFFT_Setup* rack::dsp::ComplexFFT::setup

length

int rack::dsp::ComplexFFT::length

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The documentation for this struct was generated from the following file:

• /home/vortico/src/vcv/Rack2/include/dsp/fft.hpp