mirror of https://github.com/gnss-sdr/gnss-sdr
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/*!
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* \file complex_byte_to_float_x2.cc
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* \brief Adapts a std::complex<signed char> stream into two 16-bits (short) streams
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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 "complex_byte_to_float_x2.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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complex_byte_to_float_x2_sptr make_complex_byte_to_float_x2()
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{
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return complex_byte_to_float_x2_sptr(new complex_byte_to_float_x2());
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}
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complex_byte_to_float_x2::complex_byte_to_float_x2() : sync_block("complex_byte_to_float_x2",
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gr::io_signature::make(1, 1, sizeof(lv_8sc_t)), // lv_8sc_t is a Volk's typedef for std::complex<signed char>
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gr::io_signature::make(2, 2, sizeof(float)))
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{
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const int alignment_multiple = volk_get_alignment() / sizeof(float);
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set_alignment(std::max(1, alignment_multiple));
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}
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int complex_byte_to_float_x2::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 lv_8sc_t *>(input_items[0]);
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auto *out0 = reinterpret_cast<float *>(output_items[0]);
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auto *out1 = reinterpret_cast<float *>(output_items[1]);
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const float scalar = 1;
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volk_8ic_s32f_deinterleave_32f_x2(out0, out1, in, scalar, noutput_items);
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return noutput_items;
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}
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