GTKArdour::FFT Class Reference

#include <fft.h>

Public Types
enum	WindowingType { NONE, HANN }

Public Member Functions
	FFT (uint32_t)
	~FFT ()
void	reset ()
void	analyze (ARDOUR::Sample *, WindowingType w=NONE)
void	calculate ()
uint32_t	bins () const
float	power_at_bin (uint32_t i) const
float	phase_at_bin (uint32_t i) const

Private Member Functions
float *	get_hann_window ()

Private Attributes
uint32_t const	_window_size
uint32_t const	_data_size
uint32_t	_iterations
float *	_hann_window
float *	_fftInput
float *	_fftOutput
float *	_power_at_bin
float *	_phase_at_bin
fftwf_plan	_plan

Detailed Description

Definition at line 37 of file fft.h.

Member Enumeration Documentation

enum GTKArdour::FFT::WindowingType

Enumerator
NONE
HANN

Definition at line 43 of file fft.h.

Constructor & Destructor Documentation

FFT::FFT

(

uint32_t

windowSize

)

Definition at line 28 of file fft.cc.

FFT::~FFT

(

)

Definition at line 135 of file fft.cc.

Member Function Documentation

void FFT::analyze	(	ARDOUR::Sample *	input,
		WindowingType	w = NONE
	)

Definition at line 56 of file fft.cc.

uint32_t GTKArdour::FFT::bins ( ) const

inline

Definition at line 52 of file fft.h.

void FFT::calculate

(

)

Definition at line 98 of file fft.cc.

float * FFT::get_hann_window ( )

private

Definition at line 110 of file fft.cc.

float GTKArdour::FFT::phase_at_bin ( uint32_t  i ) const

inline

Definition at line 55 of file fft.h.

float GTKArdour::FFT::power_at_bin ( uint32_t  i ) const

inline

Definition at line 54 of file fft.h.

void FFT::reset

(

)

Definition at line 47 of file fft.cc.

Member Data Documentation

uint32_t const GTKArdour::FFT::_data_size

private

Definition at line 63 of file fft.h.

float* GTKArdour::FFT::_fftInput

private

Definition at line 68 of file fft.h.

float* GTKArdour::FFT::_fftOutput

private

Definition at line 69 of file fft.h.

float* GTKArdour::FFT::_hann_window

private

Definition at line 66 of file fft.h.

uint32_t GTKArdour::FFT::_iterations

private

Definition at line 64 of file fft.h.

float* GTKArdour::FFT::_phase_at_bin

private

Definition at line 72 of file fft.h.

fftwf_plan GTKArdour::FFT::_plan

private

Definition at line 74 of file fft.h.

float* GTKArdour::FFT::_power_at_bin

private

Definition at line 71 of file fft.h.

uint32_t const GTKArdour::FFT::_window_size

private

Definition at line 62 of file fft.h.

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

• /usr/local/music/src/ardour/4.0/gtk2_ardour/fft.h
• /usr/local/music/src/ardour/4.0/gtk2_ardour/fft.cc