gr_rational_resampler_base_scc Class Reference
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#include <gr_rational_resampler_base_scc.h>

Inheritance diagram for gr_rational_resampler_base_scc:

[legend]Collaboration diagram for gr_rational_resampler_base_scc:

[legend]List of all members.

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Detailed Description

Rational Resampling Polyphase FIR filter with short input, gr_complex output and gr_complex taps.

Public Member Functions
	~gr_rational_resampler_base_scc ()
unsigned	history () const
void	set_history (unsigned history)
unsigned	interpolation () const
unsigned	decimation () const
void	set_taps (const std::vector< gr_complex > &taps)
void	forecast (int noutput_items, gr_vector_int &ninput_items_required)
	Estimate input requirements given output request.
int	general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
	compute output items from input items
Friends
gr_rational_resampler_base_scc_sptr	gr_make_rational_resampler_base_scc (unsigned interpolation, unsigned decimation, const std::vector< gr_complex > &taps)

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Constructor & Destructor Documentation

gr_rational_resampler_base_scc::~gr_rational_resampler_base_scc (   )

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Member Function Documentation

unsigned gr_rational_resampler_base_scc::decimation (   )  const [inline]

void gr_rational_resampler_base_scc::forecast (  int  noutput_items, gr_vector_int &  ninput_items_required )  [virtual]

Estimate input requirements given output request. Parameters: noutput_items  number of output items to produce ninput_items_required  number of input items required on each input stream Given a request to product noutput_items, estimate the number of data items required on each input stream. The estimate doesn't have to be exact, but should be close. Reimplemented from gr_block.

int gr_rational_resampler_base_scc::general_work (  int  noutput_items, gr_vector_int &  ninput_items, gr_vector_const_void_star &  input_items, gr_vector_void_star &  output_items )  [virtual]

compute output items from input items Parameters: noutput_items  number of output items to write on each output stream ninput_items  number of input items available on each input stream input_items  vector of pointers to the input items, one entry per input stream output_items  vector of pointers to the output items, one entry per output stream Returns: number of items actually written to each output stream, or -1 on EOF. It is OK to return a value less than noutput_items. -1 <= return value <= noutput_items general_work must call consume or consume_each to indicate how many items were consumed on each input stream. Implements gr_block.

unsigned gr_rational_resampler_base_scc::history (   )  const [inline]

Assume block computes y_i = f(x_i, x_i-1, x_i-2, x_i-3...) History is the number of x_i's that are examined to produce one y_i. This comes in handy for FIR filters, where we use history to ensure that our input contains the appropriate "history" for the filter. History should be equal to the number of filter taps. Reimplemented from gr_block.

unsigned gr_rational_resampler_base_scc::interpolation (   )  const [inline]

void gr_rational_resampler_base_scc::set_history (  unsigned  history  )  [inline]

Reimplemented from gr_block.

void gr_rational_resampler_base_scc::set_taps (  const std::vector< gr_complex > &  taps  )

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Friends And Related Function Documentation

gr_rational_resampler_base_scc_sptr gr_make_rational_resampler_base_scc (  unsigned  interpolation, unsigned  decimation, const std::vector< gr_complex > &  taps )  [friend]

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

• gr_rational_resampler_base_scc.h
• gr_rational_resampler_base_scc.cc

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