GNU Radio 3.6.5.1 C++ API
tagged_stream_mux.h
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1 /* -*- c++ -*- */
2 /* Copyright 2012 Free Software Foundation, Inc.
3  *
4  * This file is part of GNU Radio
5  *
6  * GNU Radio is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 3, or (at your option)
9  * any later version.
10  *
11  * GNU Radio is distributed in the hope that it will be useful,
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13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with GNU Radio; see the file COPYING. If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street,
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20  */
21 
22 #ifndef INCLUDED_TAGGED_STREAM_MUX_H
23 #define INCLUDED_TAGGED_STREAM_MUX_H
24 
25 #include <blocks/api.h>
26 #include <gr_tagged_stream_block.h>
27 
28 namespace gr {
29  namespace blocks {
30 
31  /*!
32  * \brief Combines tagged streams.
33  * \ingroup stream_operators_blk
34  *
35  * \details
36  * Takes N streams as input. Each stream is tagged with packet lengths.
37  * Packets are output sequentially from each input stream.
38  *
39  * The output signal has a new length tag, which is the sum of all
40  * individual length tags. The old length tags are discarded.
41  *
42  * All other tags are propagated as expected, i.e. they stay associated
43  * with the same input item.
44  */
46  {
47  public:
49 
50  /*!
51  * Make a tagged stream mux block.
52  *
53  * \param itemsize Items size (number of bytes per item)
54  * \param lengthtagname Length tag key
55  */
56  static sptr make(size_t itemsize, const std::string &lengthtagname);
57  };
58 
59  } // namespace blocks
60 } // namespace gr
61 
62 #endif /* INCLUDED_TAGGED_STREAM_MUX_H */
63