sdr::FFTPlan< Scalar > Class Template Reference

Trivial FFT implementation for buffer sizes of N=2**K. More...

#include <fftplan_native.hh>

Public Types
typedef Traits< Scalar >::SScalar	SScalar
	The super-scalar of the input type. More...

Public Member Functions
	FFTPlan (const Buffer< std::complex< Scalar > > &in, const Buffer< std::complex< Scalar > > &out, FFT::Direction dir)
	Constructs a FFT plan for the input and output buffers. More...
virtual	~FFTPlan ()
	Destructor. More...
void	operator() ()
	Performs the FFT. More...

Protected Member Functions
void	_calc (std::complex< Scalar > *a, std::complex< Scalar > *b, size_t N, size_t stride)
	Actual FFT implmenetation. More...

Protected Attributes
size_t	_N
	FFT size, needs to be a power of 2. More...
Buffer< std::complex< Scalar > >	_in
	The input buffer. More...
Buffer< std::complex< Scalar > >	_out
	The output buffer. More...
Buffer< std::complex< SScalar > >	_lut
	The exp(-i 2 pi k / N) look-up table. More...

Detailed Description

template<class Scalar>
class sdr::FFTPlan< Scalar >

Trivial FFT implementation for buffer sizes of N=2**K.

Member Typedef Documentation

template<class Scalar>

typedef Traits<Scalar >::SScalar sdr::FFTPlan< Scalar >::SScalar

The super-scalar of the input type.

Constructor & Destructor Documentation

template<class Scalar>

sdr::FFTPlan< Scalar >::FFTPlan ( const Buffer< std::complex< Scalar > > &  in, const Buffer< std::complex< Scalar > > &  out, FFT::Direction  dir  )

inline

Constructs a FFT plan for the input and output buffers.

template<class Scalar>

virtual sdr::FFTPlan< Scalar >::~FFTPlan ( )

inlinevirtual

Destructor.

Member Function Documentation

template<class Scalar>

void sdr::FFTPlan< Scalar >::_calc ( std::complex< Scalar > *  a, std::complex< Scalar > *  b, size_t  N, size_t  stride  )

inlineprotected

Actual FFT implmenetation.

template<class Scalar>

void sdr::FFTPlan< Scalar >::operator() ( )

inline

Performs the FFT.

Member Data Documentation

template<class Scalar>

Buffer< std::complex<Scalar> > sdr::FFTPlan< Scalar >::_in

protected

The input buffer.

template<class Scalar>

Buffer< std::complex<SScalar> > sdr::FFTPlan< Scalar >::_lut

protected

The exp(-i 2 pi k / N) look-up table.

template<class Scalar>

size_t sdr::FFTPlan< Scalar >::_N

protected

FFT size, needs to be a power of 2.

template<class Scalar>

Buffer< std::complex<Scalar> > sdr::FFTPlan< Scalar >::_out

protected

The output buffer.

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The documentation for this class was generated from the following files:

• /Users/hannes/Uni/Elektronik/sdr/libsdr/src/fftplan.hh
• /Users/hannes/Uni/Elektronik/sdr/libsdr/src/fftplan_native.hh