Performs the overlap-add FFT filtering and back-transform. More...

#include <filternode.hh>

Inheritance diagram for sdr::FilterSource< Scalar >:

Public Member Functions
	FilterSource (size_t block_size, double fmin, double fmax)
	Constructor. More...

virtual	~FilterSource ()
	Destructor. More...

void	setFreq (double fmin, double fmax)
	Set the frequency range. More...

virtual void	config (const Config &src_cfg)
	Configures the filter node. More...

virtual void	process (const Buffer< std::complex< Scalar > > &buffer, bool allow_overwrite)
	Performs the FFT filtering and back-transform. More...

Public Member Functions inherited from sdr::Sink< std::complex< Scalar > >
	Sink ()
	Constructor. More...

virtual	~Sink ()
	Drestructor. More...

virtual void	handleBuffer (const RawBuffer &buffer, bool allow_overwrite)
	Re-implemented from `SinkBase`. More...

Public Member Functions inherited from sdr::SinkBase
	SinkBase ()
	Constructor. More...

virtual	~SinkBase ()
	Destructor. More...

Public Member Functions inherited from sdr::Source
	Source ()
	Constructor. More...

virtual	~Source ()
	Destructor. More...

virtual void	send (const RawBuffer &buffer, bool allow_overwrite=false)
	Sends the given buffer to all connected sinks. More...

void	connect (SinkBase *sink, bool direct=false)
	Connect this source to a sink. More...

void	disconnect (SinkBase *sink)
	Disconnect a sink again. More...

virtual void	setConfig (const Config &config)
	Stores the configuration and propergates it if the configuration has been changed. More...

virtual double	sampleRate () const
	Returns the configured sample rate or `0` otherwise. More...

virtual Config::Type	type () const
	Returns the configured source type or `Config::Type_UNDEFINED` otherwise. More...

template<class T >
void	addEOS (T instance, void(T::function)())
	Adds a callback to the end-of-stream signal of the source. More...

Protected Member Functions
void	_updateFilter ()
	Updates the sink-filter. More...

Protected Member Functions inherited from sdr::Source
void	signalEOS ()
	Signals the EOS. More...

void	propagateConfig (const Config &config)
	Propagates the given configuration to all connected sinks. More...

Protected Attributes
size_t	_block_size
	Holds the block size of the filter. More...

double	_sample_rate
	The current sample-rate. More...

Buffer< std::complex< Scalar > >	_in_buffer
	An input buffer. More...

Buffer< std::complex< Scalar > >	_trafo_buffer
	A compute buffer. More...

Buffer< std::complex< Scalar > >	_last_trafo
	Holds a copy of the second-half of the last output signal. More...

Buffer< std::complex< Scalar > >	_kern
	Holds the current filter kernel. More...

BufferSet< std::complex< Scalar > >	_buffers
	The output buffers. More...

double	_fmin
	The lower frequency range. More...

double	_fmax
	The upper frequency range. More...

FFTPlan< Scalar >	_plan
	The FFT plan for the FFT back-transform. More...

Protected Attributes inherited from sdr::Source
Config	_config
	Holds the source configuration, this can be updated by calling `setConfig`. More...

std::map< SinkBase *, bool >	_sinks
	The connected sinks. More...

std::list< DelegateInterface * >	_eos
	The connected EOS singal handlers. More...

Detailed Description

template<class Scalar>
class sdr::FilterSource< Scalar >

Performs the overlap-add FFT filtering and back-transform.

Constructor & Destructor Documentation

template<class Scalar >

sdr::FilterSource< Scalar >::FilterSource	(	size_t	block_size,
		double	fmin,
		double	fmax
	)

inline

Constructor.

template<class Scalar >

virtual sdr::FilterSource< Scalar >::~FilterSource ( )

inlinevirtual

Destructor.

Member Function Documentation

template<class Scalar >

void sdr::FilterSource< Scalar >::_updateFilter ( )

inlineprotected

Updates the sink-filter.

template<class Scalar >

virtual void sdr::FilterSource< Scalar >::config ( const Config & src_cfg )

inlinevirtual

Configures the filter node.

Implements sdr::SinkBase.

template<class Scalar >

virtual void sdr::FilterSource< Scalar >::process	(	const Buffer< std::complex< Scalar > > &	buffer,
		bool	allow_overwrite
	)

inlinevirtual

Performs the FFT filtering and back-transform.

Implements sdr::Sink< std::complex< Scalar > >.

template<class Scalar >

void sdr::FilterSource< Scalar >::setFreq	(	double	fmin,
		double	fmax
	)

inline

Set the frequency range.

Member Data Documentation

template<class Scalar >

size_t sdr::FilterSource< Scalar >::_block_size

protected

Holds the block size of the filter.

template<class Scalar >

BufferSet< std::complex<Scalar> > sdr::FilterSource< Scalar >::_buffers

protected

The output buffers.

template<class Scalar >

double sdr::FilterSource< Scalar >::_fmax

protected

The upper frequency range.

template<class Scalar >

double sdr::FilterSource< Scalar >::_fmin

protected

The lower frequency range.

template<class Scalar >

Buffer< std::complex<Scalar> > sdr::FilterSource< Scalar >::_in_buffer

protected

An input buffer.

template<class Scalar >

Buffer< std::complex<Scalar> > sdr::FilterSource< Scalar >::_kern

protected

Holds the current filter kernel.

template<class Scalar >

Buffer< std::complex<Scalar> > sdr::FilterSource< Scalar >::_last_trafo

protected

Holds a copy of the second-half of the last output signal.

template<class Scalar >

FFTPlan<Scalar> sdr::FilterSource< Scalar >::_plan

protected

The FFT plan for the FFT back-transform.

template<class Scalar >

double sdr::FilterSource< Scalar >::_sample_rate

protected

The current sample-rate.

template<class Scalar >

Buffer< std::complex<Scalar> > sdr::FilterSource< Scalar >::_trafo_buffer

protected

A compute buffer.

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

/Users/hannes/Uni/Elektronik/sdr/libsdr/src/filternode.hh

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

template<class Scalar> class sdr::FilterSource< Scalar >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class Scalar>
class sdr::FilterSource< Scalar >