mirror of https://github.com/gnss-sdr/gnss-sdr
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/*!
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* \file conjugate_cc.cc
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* \brief Conjugate a stream of gr_complex
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* \author Carles Fernandez Prades, cfernandez(at)cttc.es
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include "conjugate_cc.h"
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#include <gnuradio/io_signature.h>
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#include <volk/volk.h>
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#include <algorithm> // for max
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conjugate_cc_sptr make_conjugate_cc()
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{
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return conjugate_cc_sptr(new conjugate_cc());
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}
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conjugate_cc::conjugate_cc() : gr::sync_block("conjugate_cc",
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gr::io_signature::make(1, 1, sizeof(gr_complex)),
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gr::io_signature::make(1, 1, sizeof(gr_complex)))
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{
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const int alignment_multiple = volk_get_alignment() / sizeof(gr_complex);
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set_alignment(std::max(1, alignment_multiple));
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}
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int conjugate_cc::work(int noutput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items)
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{
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const auto *in = reinterpret_cast<const gr_complex *>(input_items[0]);
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auto *out = reinterpret_cast<gr_complex *>(output_items[0]);
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volk_32fc_conjugate_32fc(out, in, noutput_items);
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return noutput_items;
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}
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