sdr::FracSubSampleBase< Scalar > Class Template Reference

Implements a fractional sub-sampler. More...

#include <subsample.hh>

Public Types
typedef Traits< Scalar >::SScalar	SScalar
	The input & output type super-scalar. More...

Public Member Functions
	FracSubSampleBase (double frac)
	Constructor. More...
virtual	~FracSubSampleBase ()
	Destructor. More...
void	setFrac (double frac)
	Resets the sample rate fraction. More...
double	frac () const
	Returns the effective sub-sample fraction. More...
void	reset ()
	Reset sample counter. More...
Buffer< Scalar >	subsample (const Buffer< Scalar > &in, const Buffer< Scalar > &out)
	Performs the sub-sampling. More...

Protected Attributes
SScalar	_avg
	The average. More...
size_t	_sample_count
	The number of samples collected times (1<<16). More...
size_t	_period
	The sub-sample period. More...

Detailed Description

template<class Scalar>
class sdr::FracSubSampleBase< Scalar >

Implements a fractional sub-sampler.

Member Typedef Documentation

template<class Scalar >

typedef Traits<Scalar>::SScalar sdr::FracSubSampleBase< Scalar >::SScalar

The input & output type super-scalar.

Constructor & Destructor Documentation

template<class Scalar >

sdr::FracSubSampleBase< Scalar >::FracSubSampleBase ( double  frac )

inline

Constructor.

Parameters

frac	Specifies the output sample rate relative to the input sample rate. I.e. 2 means half the input sample rate.

template<class Scalar >

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

inlinevirtual

Destructor.

Member Function Documentation

template<class Scalar >

double sdr::FracSubSampleBase< Scalar >::frac ( ) const

inline

Returns the effective sub-sample fraction.

template<class Scalar >

void sdr::FracSubSampleBase< Scalar >::reset ( )

inline

Reset sample counter.

template<class Scalar >

void sdr::FracSubSampleBase< Scalar >::setFrac ( double  frac )

inline

Resets the sample rate fraction.

template<class Scalar >

Buffer<Scalar> sdr::FracSubSampleBase< Scalar >::subsample ( const Buffer< Scalar > &  in, const Buffer< Scalar > &  out  )

inline

Performs the sub-sampling.

in and out may refer to the same buffer allowing for an in-place operation. Returns a view on the output buffer containing the sub-samples.

Member Data Documentation

template<class Scalar >

SScalar sdr::FracSubSampleBase< Scalar >::_avg

protected

The average.

template<class Scalar >

size_t sdr::FracSubSampleBase< Scalar >::_period

protected

The sub-sample period.

template<class Scalar >

size_t sdr::FracSubSampleBase< Scalar >::_sample_count

protected

The number of samples collected times (1<<16).

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

• /Users/hannes/Uni/Elektronik/sdr/libsdr/src/subsample.hh