baz_unpacked_to_packed_bb.h
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/* -*- c++ -*- */
/*
* Copyright 2006,2013 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.
*/
/*
* gr-baz by Balint Seeber (http://spench.net/contact)
* Information, documentation & samples: http://wiki.spench.net/wiki/gr-baz
*/
#ifndef INCLUDED_BAZ_UNPACKED_TO_PACKED_BB_H
#define INCLUDED_BAZ_UNPACKED_TO_PACKED_BB_H
#include <gnuradio/block.h>
#include <gnuradio/endianness.h>
class BAZ_API baz_unpacked_to_packed_bb;
typedef boost::shared_ptr<baz_unpacked_to_packed_bb> baz_unpacked_to_packed_bb_sptr;
BAZ_API baz_unpacked_to_packed_bb_sptr
baz_make_unpacked_to_packed_bb (unsigned int bits_per_chunk, unsigned int bits_into_output, /*gr::endianness_t*/int endianness = gr::GR_MSB_FIRST);
/*!
* \brief Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts.
* \ingroup converter_blk
*
* input: stream of unsigned char; output: stream of unsigned char
*
* This is the inverse of gr_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_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_packed_to_unpacked_bb, gr_unpacked_to_packed_bb,
* \sa gr_packed_to_unpacked_ss, gr_unpacked_to_packed_ss,
* \sa gr_chunks_to_symbols_bf, gr_chunks_to_symbols_bc.
* \sa gr_chunks_to_symbols_sf, gr_chunks_to_symbols_sc.
*/
class BAZ_API baz_unpacked_to_packed_bb : public gr::block
{
friend BAZ_API baz_unpacked_to_packed_bb_sptr
baz_make_unpacked_to_packed_bb (unsigned int bits_per_chunk, unsigned int bits_into_output, /*gr::endianness_t*/int endianness);
baz_unpacked_to_packed_bb (unsigned int bits_per_chunk, unsigned int bits_into_output, /*gr::endianness_t*/int endianness);
unsigned int d_bits_per_chunk, d_bits_into_output;
gr::endianness_t d_endianness;
unsigned int d_index;
public:
void forecast(int noutput_items, gr_vector_int &ninput_items_required);
int general_work (int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
bool check_topology(int ninputs, int noutputs) { return ninputs == noutputs; }
};
#endif
BAZ_API
#define BAZ_API
Definition api.h:19
baz_make_unpacked_to_packed_bb
BAZ_API baz_unpacked_to_packed_bb_sptr baz_make_unpacked_to_packed_bb(unsigned int bits_per_chunk, unsigned int bits_into_output, int endianness=gr::GR_MSB_FIRST)
baz_unpacked_to_packed_bb
Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts.
Definition baz_unpacked_to_packed_bb.h:64
baz_unpacked_to_packed_bb::check_topology
bool check_topology(int ninputs, int noutputs)
Definition baz_unpacked_to_packed_bb.h:81
baz_unpacked_to_packed_bb::forecast
void forecast(int noutput_items, gr_vector_int &ninput_items_required)
baz_unpacked_to_packed_bb::baz_make_unpacked_to_packed_bb
friend BAZ_API baz_unpacked_to_packed_bb_sptr baz_make_unpacked_to_packed_bb(unsigned int bits_per_chunk, unsigned int bits_into_output, int endianness)
baz_unpacked_to_packed_bb::general_work
int general_work(int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)