GNU Radio 3.6.5 C++ API
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Evaluate metrics for use by the Viterbi algorithm. More...
#include <trellis_constellation_metrics_cf.h>
Public Member Functions | |
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 | |
Protected Member Functions | |
trellis_constellation_metrics_cf (digital_constellation_sptr constellation, trellis_metric_type_t TYPE) | |
Friends | |
TRELLIS_API trellis_constellation_metrics_cf_sptr | trellis_make_constellation_metrics_cf (digital_constellation_sptr constellation, trellis_metric_type_t TYPE) |
Evaluate metrics for use by the Viterbi algorithm.
trellis_constellation_metrics_cf::trellis_constellation_metrics_cf | ( | digital_constellation_sptr | constellation, |
trellis_metric_type_t | TYPE | ||
) | [protected] |
void trellis_constellation_metrics_cf::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 trellis_constellation_metrics_cf::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.
TRELLIS_API trellis_constellation_metrics_cf_sptr trellis_make_constellation_metrics_cf | ( | digital_constellation_sptr | constellation, |
trellis_metric_type_t | TYPE | ||
) | [friend] |