gr-baz Package
stream_mux_impl.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,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef INCLUDED_STREAM_MUX_IMPL_H
24 #define INCLUDED_STREAM_MUX_IMPL_H
25 
26 #include <blocks/stream_mux.h>
27 
28 namespace gr {
29  namespace blocks {
30 
32  {
33  private:
34  size_t d_itemsize;
35  unsigned int d_stream; // index of currently selected stream
36  int d_residual; // number if items left to put into current stream
37  gr_vector_int d_lengths; // number if items to pack per stream
38 
39  void increment_stream();
40 
41  void forecast(int noutput_items, gr_vector_int &ninput_items_required);
42 
43  public:
44  stream_mux_impl(size_t itemsize, const std::vector<int> &lengths);
45 
46  int general_work(int noutput_items,
47  gr_vector_int &ninput_items,
48  gr_vector_const_void_star &input_items,
49  gr_vector_void_star &output_items);
50  };
51 
52  } /* namespace blocks */
53 } /* namespace gr */
54 
55 #endif /* INCLUDED_STREAM_MUX_IMPL_H */