GNU Radio 3.6.3 C++ API
atsc_bit_timing_loop.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,
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 #ifndef INCLUDED_ATSC_BIT_TIMING_LOOP_H
23 #define INCLUDED_ATSC_BIT_TIMING_LOOP_H
24 
25 #include <atsc_api.h>
26 #include <cstdio>
27 #include <gr_block.h>
28 #include <atsci_diag_output.h>
29 #include <atsci_sssr.h>
30 #include <atsci_syminfo.h>
31 
34 
36 
37 /*!
38  * \brief ATSC BitTimingLoop3
39  * \ingroup atsc
40  *
41  * This class accepts a single real input and produces two outputs,
42  * the raw symbol (float) and the tag (atsc_syminfo)
43  */
45 {
47 
49 
50 public:
51  int work (int noutput_items,
52  gr_vector_const_void_star &input_items,
53  gr_vector_void_star &output_items);
54 
55  void reset() { /* nop */ }
56 
58 
59  void forecast (int noutput_items, gr_vector_int &ninput_items_required);
60 
61  int general_work (int noutput_items,
62  gr_vector_int &ninput_items,
63  gr_vector_const_void_star &input_items,
64  gr_vector_void_star &output_items);
65 
66 
67  // debug (NOPs)
68  void set_mu (double a_mu) { }
69  void set_no_update (bool a_no_update) { }
70  void set_loop_filter_tap (double tap) { }
71  void set_timing_rate (double rate) { }
72 
73 
74  protected:
75 
78  unsigned long long d_next_input;
80  int d_si;
81 
82 
83 };
84 
85 #endif /* INCLUDED_ATSC_BIT_TIMING_LOOP_H */
86 
87 
88