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kiss_fft_state.hh File Reference
#include <complex>
#include <vector>

Classes

class  numeric::fourier::kiss_fft_state
 
class  numeric::fourier::kiss_dct_state
 
class  numeric::fourier::kiss_fftsplit_state
 
class  numeric::fourier::kiss_fftr_state
 
class  numeric::fourier::kiss_fftnd_state
 
class  numeric::fourier::kiss_fftndr_state
 

Namespaces

 numeric
 Unit headers.
 
 numeric::fourier
 

Macros

#define kiss_fft_scalar   double
 
#define KISSFFT_MAXFACTORS   32
 

Typedefs

typedef std::complex
< kiss_fft_scalar
numeric::fourier::kiss_fft_cpx
 
typedef class kiss_fft_state * numeric::fourier::kiss_fft_cfg
 
typedef class kiss_fftsplit_state * numeric::fourier::kiss_fftsplit_cfg
 
typedef class kiss_dct_state * numeric::fourier::kiss_dct_cfg
 
typedef class kiss_fftnd_state * numeric::fourier::kiss_fftnd_cfg
 
typedef class kiss_fftr_state * numeric::fourier::kiss_fftr_cfg
 
typedef class kiss_fftndr_state * numeric::fourier::kiss_fftndr_cfg
 

Detailed Description

Author
Frank DiMaio

Macro Definition Documentation

#define kiss_fft_scalar   double
#define KISSFFT_MAXFACTORS   32

In addition to state info, the state variables also contain a pointer to a precomputed buffer. To avoid frequent allocation/recalculation of this buffer, it may make sense to cache these buffers If many FFTs of the same size were requested, only a single allocation would be needed However, if many different-sized FFTs were desired, the memory usage of the cache could be quite large.