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gr_unpacked_to_packed_ii.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2006 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3, or (at your option)
10  * any later version.
11  *
12  * GNU Radio is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with GNU Radio; see the file COPYING. If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 // WARNING: this file is machine generated. Edits will be overwritten
24 
25 #ifndef INCLUDED_GR_GR_UNPACKED_TO_PACKED_II_H
26 #define INCLUDED_GR_GR_UNPACKED_TO_PACKED_II_H
27 
28 #include <gr_core_api.h>
29 #include <gr_block.h>
30 #include <gr_endianness.h>
31 
34 
36 gr_make_unpacked_to_packed_ii (unsigned int bits_per_chunk, gr_endianness_t endianness);
37 
38 /*!
39  * \brief Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts.
40  * \ingroup converter_blk
41  *
42  * input: stream of int; output: stream of int
43  *
44  * This is the inverse of gr_packed_to_unpacked_XX.
45  *
46  * The low \p bits_per_chunk bits are extracted from each input byte or short.
47  * These bits are then packed densely into the output bytes or shorts, such that
48  * all 8 or 16 bits of the output bytes or shorts are filled with valid input bits.
49  * The right thing is done if bits_per_chunk is not a power of two.
50  *
51  * The combination of gr_packed_to_unpacked_XX followed by
52  * gr_chunks_to_symbols_Xf or gr_chunks_to_symbols_Xc handles the
53  * general case of mapping from a stream of bytes or shorts into arbitrary float
54  * or complex symbols.
55  *
56  * \sa gr_packed_to_unpacked_bb, gr_unpacked_to_packed_bb,
57  * \sa gr_packed_to_unpacked_ss, gr_unpacked_to_packed_ss,
58  * \sa gr_chunks_to_symbols_bf, gr_chunks_to_symbols_bc.
59  * \sa gr_chunks_to_symbols_sf, gr_chunks_to_symbols_sc.
60  */
62 {
64  gr_make_unpacked_to_packed_ii (unsigned int bits_per_chunk, gr_endianness_t endianness);
65 
66  gr_unpacked_to_packed_ii (unsigned int bits_per_chunk, gr_endianness_t endianness);
67 
68  unsigned int d_bits_per_chunk;
69  gr_endianness_t d_endianness;
70  unsigned int d_index;
71 
72  public:
73  void forecast(int noutput_items, gr_vector_int &ninput_items_required);
74  int general_work (int noutput_items,
75  gr_vector_int &ninput_items,
76  gr_vector_const_void_star &input_items,
77  gr_vector_void_star &output_items);
78 
79  bool check_topology(int ninputs, int noutputs) { return ninputs == noutputs; }
80 };
81 
82 #endif