GNU Radio 3.6.5 C++ API
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#include <rational_resampler_base_fcc_impl.h>
Public Member Functions | |
rational_resampler_base_fcc_impl (unsigned interpolation, unsigned decimation, const std::vector< gr_complex > &taps) | |
~rational_resampler_base_fcc_impl () | |
unsigned | history () const |
void | set_history (unsigned history) |
unsigned | interpolation () const |
unsigned | decimation () const |
void | set_taps (const std::vector< gr_complex > &taps) |
std::vector< gr_complex > | taps () const |
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 |
gr::filter::rational_resampler_base_fcc_impl::rational_resampler_base_fcc_impl | ( | unsigned | interpolation, |
unsigned | decimation, | ||
const std::vector< gr_complex > & | taps | ||
) |
gr::filter::rational_resampler_base_fcc_impl::~rational_resampler_base_fcc_impl | ( | ) |
unsigned gr::filter::rational_resampler_base_fcc_impl::decimation | ( | ) | const [inline, virtual] |
Implements gr::filter::rational_resampler_base_fcc.
void gr::filter::rational_resampler_base_fcc_impl::forecast | ( | int | noutput_items, |
gr_vector_int & | ninput_items_required | ||
) | [virtual] |
Estimate input requirements given output request.
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::filter::rational_resampler_base_fcc_impl::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
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 |
general_work must call consume or consume_each to indicate how many items were consumed on each input stream.
Reimplemented from gr_block.
unsigned gr::filter::rational_resampler_base_fcc_impl::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::filter::rational_resampler_base_fcc_impl::interpolation | ( | ) | const [inline, virtual] |
Implements gr::filter::rational_resampler_base_fcc.
void gr::filter::rational_resampler_base_fcc_impl::set_history | ( | unsigned | history | ) | [inline] |
Reimplemented from gr_block.
void gr::filter::rational_resampler_base_fcc_impl::set_taps | ( | const std::vector< gr_complex > & | taps | ) | [virtual] |
Implements gr::filter::rational_resampler_base_fcc.
std::vector<gr_complex> gr::filter::rational_resampler_base_fcc_impl::taps | ( | ) | const [virtual] |
Implements gr::filter::rational_resampler_base_fcc.