gnss-sdr/src/algorithms/signal_source/gnuradio_blocks/unpack_short_byte_samples.h

59 lines
1.7 KiB
C++

/*!
* \file unpack_short_byte_samples.cc
*
* \brief Unpacks shorts samples to byte samples (1 short = 2 byte samples).
* Packing Order
* Packing order in Nibble I0 I1
* \author Javier Arribas jarribas (at) cttc.es
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2022 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_UNPACK_SHORT_BYTE_SAMPLES_H
#define GNSS_SDR_UNPACK_SHORT_BYTE_SAMPLES_H
#include "gnss_block_interface.h"
#include <gnuradio/sync_interpolator.h>
/** \addtogroup Signal_Source
* \{ */
/** \addtogroup Signal_Source_gnuradio_blocks
* \{ */
class unpack_short_byte_samples;
using unpack_short_byte_samples_sptr = gnss_shared_ptr<unpack_short_byte_samples>;
unpack_short_byte_samples_sptr make_unpack_short_byte_samples();
/*!
* \brief This class implements conversion between short packet samples to byte samples
* 1 short = 2 byte samples
*/
class unpack_short_byte_samples : public gr::sync_interpolator
{
public:
unpack_short_byte_samples();
void forecast(int noutput_items, gr_vector_int &ninput_items_required);
~unpack_short_byte_samples() = default;
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
private:
friend unpack_short_byte_samples_sptr make_unpack_short_byte_samples_sptr();
};
/** \} */
/** \} */
#endif // GNSS_SDR_UNPACK_SHORT_BYTE_SAMPLES_H