VampPluginSDK
2.9

A simple FFT implementation provided for convenience of plugin authors. More...
#include <FFT.h>
Public Member Functions  
FFTComplex (unsigned int n)  
Prepare to calculate transforms of size n. More...  
~FFTComplex ()  
void  forward (const double *ci, double *co) 
Calculate a forward transform of size n. More...  
void  inverse (const double *ci, double *co) 
Calculate an inverse transform of size n. More...  
Private Attributes  
D *  m_d 
Detailed Description
A simple FFT implementation provided for convenience of plugin authors.
This class provides doubleprecision complexcomplex transforms.
Note: If the SDK has been compiled with the SINGLE_PRECISION_FFT flag, then all FFTs will use single precision internally. The default is double precision. The API uses doubles in either case.
The forward transform is unscaled; the inverse transform is scaled by 1/n.
Constructor & Destructor Documentation
Vamp::FFTComplex::FFTComplex  (  unsigned int  n  ) 
Prepare to calculate transforms of size n.
n must be a multiple of 2.
Vamp::FFTComplex::~FFTComplex  (  ) 
Member Function Documentation
void Vamp::FFTComplex::forward  (  const double *  ci, 
double *  co  
) 
Calculate a forward transform of size n.
ci must point to the interleaved complex input data of size n (that is, 2n doubles in total).
co must point to enough space to receive an interleaved complex output array of size n (that is, 2n doubles in total).
void Vamp::FFTComplex::inverse  (  const double *  ci, 
double *  co  
) 
Calculate an inverse transform of size n.
ci must point to an interleaved complex input array of size n (that is, 2n doubles in total).
co must point to enough space to receive the interleaved complex output data of size n (that is, 2n doubles in total). The output is scaled by 1/n.
Member Data Documentation
The documentation for this class was generated from the following file:
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