A platform independent FFT processing engine. More...

Inherits SmartPointerContainer< SmartPointerType, enableWeak >.

Public Member Functions
	FFTEngineBase (const long length=0) throw ()
	Create a new engine with a particular FFT size.
	FFTEngineBase (FFTEngineBase const &copy) throw ()
	Copy constructor.
FFTEngineBase &	operator= (FFTEngineBase const &other) throw ()
	Assignment operator.
void	forward (float output, const float input) throw ()
	Apply the FFT to the input and place the result in output.
void	forward (Buffer &output, Buffer const &input) throw ()
	Apply the FFT to the input and place the result in output.
void	inverse (float output, const float input) throw ()
	Apply the inverse-FFT to the input and place the result in output.
void	inverse (Buffer &output, Buffer const &input) throw ()
	Apply the inverse-FFT to the input and place the result in output.
long	length () const
	Get the FFT size.
long	halfLength () const
	Get half FFT size.

Detailed Description

A platform independent FFT processing engine.

This uses Plank to decide which underlying processing engine to use (e.g., FFTReal or vDSP).

Constructor & Destructor Documentation

FFTEngineBase< float >::FFTEngineBase ( const long length = 0 ) throw () [inline]

Create a new engine with a particular FFT size.

Parameters:

length The FFT size - this must be a power of 2 or less than 16 (where it will specify the log2 FFT size e.g., 8 = pow(2,8) = 256).

FFTEngineBase< float >::FFTEngineBase ( FFTEngineBase< float > const & copy ) throw () [inline]

Copy constructor.

Note that a deep copy is not made, the copy will refer to exactly the same data.

void FFTEngineBase< float >::forward	(	float *	output,
		const float *	input
	)		throw () `[inline]`

Apply the FFT to the input and place the result in output.

This can't be performed in-place (i.e., input and output must not point to the same data or overlap).

void FFTEngineBase< float >::forward	(	Buffer &	output,
		Buffer const &	input
	)		throw () `[inline]`

Apply the FFT to the input and place the result in output.

This can't be performed in-place (i.e., input and output must not point to the same data or overlap).

long FFTEngineBase< float >::halfLength ( ) const [inline]

Get half FFT size.

This is just as a convenience as it is already cached for efficiency.

void FFTEngineBase< float >::inverse	(	Buffer &	output,
		Buffer const &	input
	)		throw () `[inline]`

Apply the inverse-FFT to the input and place the result in output.

This can't be performed in-place (i.e., input and output must not point to the same data or overlap).

void FFTEngineBase< float >::inverse	(	float *	output,
		const float *	input
	)		throw () `[inline]`

Apply the inverse-FFT to the input and place the result in output.

This can't be performed in-place (i.e., input and output must not point to the same data or overlap).

long FFTEngineBase< float >::length ( ) const [inline]

Get the FFT size.

FFTEngineBase& FFTEngineBase< float >::operator= ( FFTEngineBase< float > const & other ) throw () [inline]

Assignment operator.

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