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/* -*- c++ -*- */
/*
* Copyright 2006,2013,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef UNPACKED_TO_PACKED_H
#define UNPACKED_TO_PACKED_H
#include <gnuradio/blocks/api.h>
#include <gnuradio/block.h>
#include <gnuradio/endianness.h>
#include <cstdint>
namespace gr {
namespace blocks {
/*!
* \brief Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts.
* \ingroup byte_operators_blk
*
* \details
* input: stream of T; output: stream of T
*
* This is the inverse of gr::blocks::packed_to_unpacked_XX.
*
* The low \p bits_per_chunk bits are extracted from each input
* byte or short. These bits are then packed densely into the
* output bytes or shorts, such that all 8 or 16 bits of the
* output bytes or shorts are filled with valid input bits. The
* right thing is done if bits_per_chunk is not a power of two.
*
* The combination of gr::blocks::packed_to_unpacked_XX followed by
* gr_chunks_to_symbols_Xf or gr_chunks_to_symbols_Xc handles the
* general case of mapping from a stream of bytes or shorts into
* arbitrary float or complex symbols.
*
* \sa gr::blocks::packed_to_unpacked_bb, gr::blocks::unpacked_to_packed_bb,
* \sa gr::blocks::packed_to_unpacked_ss, gr::blocks::unpacked_to_packed_ss,
* \sa gr::blocks::chunks_to_symbols_bf, gr::blocks::chunks_to_symbols_bc.
* \sa gr::blocks::chunks_to_symbols_sf, gr::blocks::chunks_to_symbols_sc.
*/
template<class T>
class BLOCKS_API unpacked_to_packed : virtual public block
{
public:
// gr::blocks::unpacked_to_packed::sptr
typedef boost::shared_ptr< unpacked_to_packed<T> > sptr;
static sptr make(unsigned int bits_per_chunk,
endianness_t endianness);
};
typedef unpacked_to_packed<std::uint8_t> unpacked_to_packed_bb;
typedef unpacked_to_packed<std::int16_t> unpacked_to_packed_ss;
typedef unpacked_to_packed<std::int32_t> unpacked_to_packed_ii;
} /* namespace blocks */
} /* namespace gr */
#endif /* UNPACKED_TO_PACKED_H */
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