GNU Radio 3.6.4.1 C++ API
gr_packed_to_unpacked_bb.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,
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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
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19  * the Free Software Foundation, Inc., 51 Franklin Street,
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22 
23 // WARNING: this file is machine generated. Edits will be overwritten
24 
25 #ifndef INCLUDED_GR_GR_PACKED_TO_UNPACKED_BB_H
26 #define INCLUDED_GR_GR_PACKED_TO_UNPACKED_BB_H
27 
28 #include <gr_core_api.h>
29 #include <gr_block.h>
30 #include <gr_endianness.h>
31 
34 
36 gr_make_packed_to_unpacked_bb (unsigned int bits_per_chunk, gr_endianness_t endianness);
37 
38 /*!
39  * \brief Convert a stream of packed bytes or shorts to stream of unpacked bytes or shorts.
40  * \ingroup converter_blk
41  *
42  * input: stream of unsigned char; output: stream of unsigned char
43  *
44  * This is the inverse of gr_unpacked_to_packed_XX.
45  *
46  * The bits in the bytes or shorts input stream are grouped into chunks of
47  * \p bits_per_chunk bits and each resulting chunk is written right-
48  * justified to the output stream of bytes or shorts.
49  * All b or 16 bits of the each input bytes or short are processed.
50  * The right thing is done if bits_per_chunk is not a power of two.
51  *
52  * The combination of gr_packed_to_unpacked_XX_ followed by
53  * gr_chunks_to_symbols_Xf or gr_chunks_to_symbols_Xc handles the
54  * general case of mapping from a stream of bytes or shorts into
55  * arbitrary float or complex symbols.
56  *
57  * \sa gr_packed_to_unpacked_bb, gr_unpacked_to_packed_bb,
58  * \sa gr_packed_to_unpacked_ss, gr_unpacked_to_packed_ss,
59  * \sa gr_chunks_to_symbols_bf, gr_chunks_to_symbols_bc.
60  * \sa gr_chunks_to_symbols_sf, gr_chunks_to_symbols_sc.
61  */
62 
64 {
66  gr_make_packed_to_unpacked_bb (unsigned int bits_per_chunk, gr_endianness_t endianness);
67 
68  gr_packed_to_unpacked_bb (unsigned int bits_per_chunk, gr_endianness_t endianness);
69 
70  unsigned int d_bits_per_chunk;
71  gr_endianness_t d_endianness;
72  unsigned int d_index;
73 
74  public:
75  void forecast(int noutput_items, gr_vector_int &ninput_items_required);
76  int general_work (int noutput_items,
77  gr_vector_int &ninput_items,
78  gr_vector_const_void_star &input_items,
79  gr_vector_void_star &output_items);
80 
81  bool check_topology(int ninputs, int noutputs) { return ninputs == noutputs; }
82 
83 };
84 
85 #endif