Common::RDFT Class Reference

(Inverse) Real Discrete Fourier Transform. More...

#include <rdft.h>

Inheritance diagram for Common::RDFT:

Collaboration diagram for Common::RDFT:

Public Types
enum	TransformType { DFT_R2C, IDFT_C2R, IDFT_R2C, DFT_C2R }

Public Member Functions
	RDFT (int bits, TransformType trans)
	~RDFT ()
void	calc (float *data)

Private Attributes
int	_bits
bool	_inverse
int	_signConvention
const float *	_tSin
const float *	_tCos
ScopedPtr< FFT >	_fft

Detailed Description

(Inverse) Real Discrete Fourier Transform.

Definition at line 64 of file rdft.h.

Member Enumeration Documentation

TransformType

enum Common::RDFT::TransformType

Enumerator
DFT_R2C
IDFT_C2R
IDFT_R2C
DFT_C2R

Definition at line 66 of file rdft.h.

Constructor & Destructor Documentation

RDFT()

Common::RDFT::RDFT	(	int	bits,
		TransformType	trans
	)

Definition at line 61 of file rdft.cpp.

References _bits, _fft, _inverse, _signConvention, _tCos, _tSin, DFT_C2R, DFT_R2C, Common::getCosineTable(), Common::getSineTable(), IDFT_C2R, and IDFT_R2C.

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~RDFT()

Common::RDFT::~RDFT

(

)

Definition at line 75 of file rdft.cpp.

Member Function Documentation

calc()

void Common::RDFT::calc

(

float *

data

)

Definition at line 78 of file rdft.cpp.

References _bits, _fft, _inverse, _signConvention, _tCos, _tSin, Common::Complex::im, and Common::Complex::re.

Member Data Documentation

_bits

int Common::RDFT::_bits

private

Definition at line 79 of file rdft.h.

Referenced by calc(), and RDFT().

_fft

ScopedPtr<FFT> Common::RDFT::_fft

private

Definition at line 86 of file rdft.h.

Referenced by calc(), and RDFT().

_inverse

bool Common::RDFT::_inverse

private

Definition at line 80 of file rdft.h.

Referenced by calc(), and RDFT().

_signConvention

int Common::RDFT::_signConvention

private

Definition at line 81 of file rdft.h.

Referenced by calc(), and RDFT().

_tCos

const float* Common::RDFT::_tCos

private

Definition at line 84 of file rdft.h.

Referenced by calc(), and RDFT().

_tSin

const float* Common::RDFT::_tSin

private

Definition at line 83 of file rdft.h.

Referenced by calc(), and RDFT().

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

• src/common/rdft.h
• src/common/rdft.cpp