GNU Radio Manual and C++ API Reference  3.7.9.2
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stream_mux.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2012 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,
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21  */
22 
23 #ifndef INCLUDED_BLOCKS_STREAM_MUX_H
24 #define INCLUDED_BLOCKS_STREAM_MUX_H
25 
26 #include <gnuradio/blocks/api.h>
27 #include <gnuradio/block.h>
28 #include <vector>
29 
30 namespace gr {
31  namespace blocks {
32 
33  /*!
34  * \brief Stream muxing block to multiplex many streams into
35  * one with a specified format.
36  * \ingroup stream_operators_blk
37  *
38  * \details
39  * Muxes N streams together producing an output stream that
40  * contains N0 items from the first stream, N1 items from the second,
41  * etc. and repeats:
42  *
43  * [N0, N1, N2, ..., Nm, N0, N1, ...]
44  */
45  class BLOCKS_API stream_mux : virtual public block
46  {
47  public:
48 
49  // gr::blocks::stream_mux::sptr
50  typedef boost::shared_ptr<stream_mux> sptr;
51 
52  /*!
53  * \brief Creates a stream muxing block to multiplex many streams into
54  * one with a specified format.
55  *
56  * \param itemsize the item size of the stream
57  * \param lengths a vector (list/tuple) specifying the number of
58  * items from each stream the mux together.
59  * Warning: this requires that at least as many items
60  * per stream are available or the system will wait
61  * indefinitely for the items.
62  *
63  */
64  static sptr make(size_t itemsize, const std::vector<int> &lengths);
65  };
66 
67  } /* namespace blocks */
68 } /* namespace gr */
69 
70 #endif /* INCLUDED_BLOCKS_STREAM_MUX_H */
boost::shared_ptr< stream_mux > sptr
Definition: stream_mux.h:50
Stream muxing block to multiplex many streams into one with a specified format.
Definition: stream_mux.h:45
Include this header to use the message passing features.
Definition: logger.h:131
#define BLOCKS_API
Definition: gr-blocks/include/gnuradio/blocks/api.h:30
The abstract base class for all 'terminal' processing blocks.A signal processing flow is constructed ...
Definition: block.h:60
BLOCKS_API size_t itemsize(vector_type type)