3 * Copyright 2006 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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 2, or (at your option)
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.
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., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
22 #ifndef INCLUDED_ATSC_BIT_TIMING_LOOP_H
23 #define INCLUDED_ATSC_BIT_TIMING_LOOP_H
27 #include <atsci_diag_output.h>
28 #include <atsci_sssr.h>
29 #include <atsci_syminfo.h>
31 class atsc_bit_timing_loop;
32 typedef boost::shared_ptr<atsc_bit_timing_loop> atsc_bit_timing_loop_sptr;
34 atsc_bit_timing_loop_sptr atsc_make_bit_timing_loop();
37 * \brief ATSC BitTimingLoop3
40 * This class accepts a single real input and produces two outputs,
41 * the raw symbol (float) and the tag (atsc_syminfo)
43 class atsc_bit_timing_loop : public gr_block
45 friend atsc_bit_timing_loop_sptr atsc_make_bit_timing_loop();
47 atsc_bit_timing_loop();
50 int work (int noutput_items,
51 gr_vector_const_void_star &input_items,
52 gr_vector_void_star &output_items);
54 void reset() { /* nop */ }
56 ~atsc_bit_timing_loop () { };
58 void forecast (int noutput_items, gr_vector_int &ninput_items_required);
60 int general_work (int noutput_items,
61 gr_vector_int &ninput_items,
62 gr_vector_const_void_star &input_items,
63 gr_vector_void_star &output_items);
67 void set_mu (double a_mu) { }
68 void set_no_update (bool a_no_update) { }
69 void set_loop_filter_tap (double tap) { }
70 void set_timing_rate (double rate) { }
76 atsci_interpolator d_interp;
77 unsigned long long d_next_input;
78 double d_rx_clock_to_symbol_freq;
80 unsigned long long inputs0_index; // for inputs[0].index
81 unsigned long inputs0_size; // for inputs[0].size
86 #endif /* INCLUDED_ATSC_BIT_TIMING_LOOP_H */