GNU Radio's DAB Package
dab_puncture_vbb.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004 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_DAB_PUNCTURE_VBB_H
24 #define INCLUDED_DAB_PUNCTURE_VBB_H
25 
26 #include <gr_sync_block.h>
27 
28 class dab_puncture_vbb;
29 
30 typedef boost::shared_ptr <dab_puncture_vbb> dab_puncture_vbb_sptr;
31 
32 dab_puncture_vbb_sptr
33 dab_make_puncture_vbb(const std::vector<unsigned char> &puncturing_vector);
34 
35 /*!
36  * \brief Puncturing - remove bits, where the puncturing sequence is zero
37  * \ingroup DAB
38  * \param puncturing_vector describes, which bits are removed (1=keep, 0=remove)
39  *
40  * input: byte vector whose length equals the length of the puncturing vector
41  * output: byte vector whose length equeals the number of ones in the puncturing vector
42  */
43 class dab_puncture_vbb : public gr_sync_block {
44 private:
45  friend dab_puncture_vbb_sptr
46  dab_make_puncture_vbb(const std::vector<unsigned char> &puncturing_vector);
47 
48  unsigned int ones(const std::vector<unsigned char> &puncturing_vector);
49 
50  dab_puncture_vbb(const std::vector<unsigned char> &puncturing_vector); // private constructor
51 
52  std::vector<unsigned char> d_puncturing_vector;
53  unsigned int d_vlen_in;
54  unsigned int d_vlen_out;
55 
56 public:
57  int work(int noutput_items,
58  gr_vector_const_void_star &input_items,
59  gr_vector_void_star &output_items);
60 };
61 
62 #endif /* INCLUDED_DAB_PUNCTURE_VBB_H */
int work(int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
friend dab_puncture_vbb_sptr dab_make_puncture_vbb(const std::vector< unsigned char > &puncturing_vector)
Puncturing - remove bits, where the puncturing sequence is zero.
Definition: dab_puncture_vbb.h:43
dab_puncture_vbb_sptr dab_make_puncture_vbb(const std::vector< unsigned char > &puncturing_vector)