FFT Class Reference

#include <fourier.h>

Inherited by CrossfadeFFT.

Collaboration diagram for FFT:

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Public Member Functions
	FFT ()
	~FFT ()
int	do_fft (unsigned int samples, int inverse, double *real_in, double *imag_in, double *real_out, double *imag_out)
int	symmetry (int size, double *freq_real, double *freq_imag)
unsigned int	samples_to_bits (unsigned int samples)
unsigned int	reverse_bits (unsigned int index, unsigned int bits)
virtual int	update_progress (int current_position)
int	ready_fftw (unsigned int samples)
int	do_fftw_inplace (unsigned int samples, int inverse, fftw_complex *data)
Data Fields
fftw_plan_desc *	my_fftw_plan
Static Public Attributes
static fftw_plan_desc *	fftw_plans = 0
static Mutex	plans_lock = Mutex()

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Detailed Description

Definition at line 18 of file fourier.h.

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Constructor & Destructor Documentation

FFT::FFT

(

)

Definition at line 16 of file fourier.C.

FFT::~FFT

(

)

Definition at line 20 of file fourier.C.

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Member Function Documentation

int FFT::do_fft	(	unsigned int	samples,
		int	inverse,
		double *	real_in,
		double *	imag_in,
		double *	real_out,
		double *	imag_out
	)

Definition at line 24 of file fourier.C.

References M_PI, reverse_bits(), samples_to_bits(), and EffectTV::w.

Referenced by CrossfadeFFT::process_buffer().

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int FFT::symmetry	(	int	size,
		double *	freq_real,
		double *	freq_imag
	)

Definition at line 150 of file fourier.C.

References EffectTV::h.

Referenced by ParametricFFT::signal_process(), and DenoiseFFTRemove::signal_process().

unsigned int FFT::samples_to_bits

(

unsigned int

samples

)

Definition at line 125 of file fourier.C.

Referenced by do_fft().

unsigned int FFT::reverse_bits	(	unsigned int	index,
		unsigned int	bits
	)

Definition at line 137 of file fourier.C.

Referenced by do_fft().

int FFT::update_progress

(

int

current_position

)

[virtual]

Definition at line 120 of file fourier.C.

int FFT::ready_fftw

(

unsigned int

samples

)

Definition at line 162 of file fourier.C.

References fftw_plans, Mutex::lock(), my_fftw_plan, fftw_plan_desc::next, fftw_plan_desc::plan_backward, fftw_plan_desc::plan_forward, fftw_plan_desc::samples, and Mutex::unlock().

Referenced by CrossfadeFFT::set_oversample().

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int FFT::do_fftw_inplace	(	unsigned int	samples,
		int	inverse,
		fftw_complex *	data
	)

Definition at line 196 of file fourier.C.

References my_fftw_plan, fftw_plan_desc::plan_backward, and fftw_plan_desc::plan_forward.

Referenced by CrossfadeFFT::process_buffer_oversample().

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Field Documentation

fftw_plan_desc* FFT::my_fftw_plan

Definition at line 35 of file fourier.h.

Referenced by do_fftw_inplace(), and ready_fftw().

fftw_plan_desc * FFT::fftw_plans = 0 [static]

Definition at line 42 of file fourier.h.

Referenced by ready_fftw().

Mutex FFT::plans_lock = Mutex() [static]

Definition at line 43 of file fourier.h.

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

• hvirtual/plugins/libfourier/fourier.h
• hvirtual/plugins/libfourier/fourier.C