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/* -*- c++ -*- */
/*
* Copyright 2004,2012,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef METRICS_H
#define METRICS_H
#include <gnuradio/block.h>
#include <gnuradio/trellis/api.h>
#include <gnuradio/trellis/calc_metric.h>
#include <cstdint>
namespace gr {
namespace trellis {
/*!
* \brief Evaluate metrics for use by the Viterbi algorithm.
* \ingroup trellis_coding_blk
*/
template <class T>
class TRELLIS_API metrics : virtual public block
{
public:
// gr::trellis::metrics::sptr
typedef std::shared_ptr<metrics<T>> sptr;
static sptr
make(int O, int D, const std::vector<T>& TABLE, digital::trellis_metric_type_t TYPE);
virtual int O() const = 0;
virtual int D() const = 0;
virtual digital::trellis_metric_type_t TYPE() const = 0;
virtual std::vector<T> TABLE() const = 0;
virtual void set_O(int O) = 0;
virtual void set_D(int D) = 0;
virtual void set_TYPE(digital::trellis_metric_type_t type) = 0;
virtual void set_TABLE(const std::vector<T>& table) = 0;
};
typedef metrics<std::int16_t> metrics_s;
typedef metrics<std::int32_t> metrics_i;
typedef metrics<float> metrics_f;
typedef metrics<gr_complex> metrics_c;
} /* namespace trellis */
} /* namespace gr */
#endif /* METRICS_H */
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