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/* -*- c++ -*- */
/*
* Copyright 2006,2010,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "diff_phasor_cc_impl.h"
#include <gnuradio/io_signature.h>
namespace gr {
namespace digital {
diff_phasor_cc::sptr diff_phasor_cc::make()
{
return gnuradio::get_initial_sptr(new diff_phasor_cc_impl());
}
diff_phasor_cc_impl::diff_phasor_cc_impl()
: sync_block("diff_phasor_cc",
io_signature::make(1, 1, sizeof(gr_complex)),
io_signature::make(1, 1, sizeof(gr_complex)))
{
set_history(2);
}
diff_phasor_cc_impl::~diff_phasor_cc_impl() {}
int diff_phasor_cc_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
gr_complex const* in = (const gr_complex*)input_items[0];
gr_complex* out = (gr_complex*)output_items[0];
in += 1; // ensure that i - 1 is valid.
for (int i = 0; i < noutput_items; i++) {
out[i] = in[i] * conj(in[i - 1]);
}
return noutput_items;
}
} /* namespace digital */
} /* namespace gr */
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