GNU Radio's RDS Package
encoder_impl.h
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1/*
2 * Copyright (C) 2014 Bastian Bloessl <bloessl@ccs-labs.org>
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17#ifndef INCLUDED_RDS_ENCODER_IMPL_H
18#define INCLUDED_RDS_ENCODER_IMPL_H
19
20#include <rds/encoder.h>
21#include <gnuradio/thread/thread.h>
22
23namespace gr {
24namespace rds {
25
26class encoder_impl : public encoder
27{
28public:
29 encoder_impl(unsigned char pty_locale, int pty, bool ms, std::string ps,
30 double af1, bool tp, bool ta, int pi_country_code,
31 int pi_coverage_area, int pi_reference_number,
32 std::string radiotext);
33
34 virtual void set_ps(std::string ps);
35
36private:
38
39 int work(int noutput_items,
40 gr_vector_const_void_star &input_items,
41 gr_vector_void_star &output_items);
42
43 unsigned int infoword[4];
44 unsigned int checkword[4];
45 unsigned int block[4];
46 unsigned char **buffer;
47 unsigned char pty_locale;
48
49 // FIXME make this a struct (or a class)
50 unsigned char PTY;
51 unsigned char radiotext[64];
52 unsigned char PS[8];
53 bool TA;
54 bool TP;
55 bool MS;
56 unsigned int PI;
57 double AF1;
58
59 int DP;
60 int extent;
61 int event;
62 int location;
63 gr::thread::mutex d_mutex;
64
65/* each type 0 group contains 2 out of 8 PS characters;
66 * this is used to count 0..3 and send all PS characters */
67 int d_g0_counter;
68/* each type 2A group contains 4 out of 64 RadioText characters;
69 * each type 2B group contains 2 out of 32 RadioText characters;
70 * this is used to count 0..15 and send all RadioText characters */
71 int d_g2_counter;
72/* points to the current buffer being prepared/streamed
73 * used in create_group() and in work() */
74 int d_current_buffer;
75/* loops through the buffer, pushing out the symbols */
76 int d_buffer_bit_counter;
77 int groups[32];
78/* nbuffers might be != ngroups, e.g. group 0A needs 4 buffers */
79 int nbuffers;
80
81// Functions
82 void rebuild();
83 void set_ms(bool ms);
84 void set_tp(bool tp);
85 void set_ta(bool ta);
86 void set_af1(double af1);
87 void set_pty(unsigned int pty);
88 void set_pi(unsigned int pty);
89 void set_radiotext(std::string text);
90
91 void count_groups();
92 void create_group(const int, const bool);
93 void prepare_group0(const bool);
94 void prepare_group1a();
95 void prepare_group2(const bool);
96 void prepare_group3a();
97 void prepare_group4a();
98 void prepare_group8a();
99 void prepare_group11a();
100 void prepare_buffer(int);
101 unsigned int encode_af(double);
102 unsigned int calc_syndrome(unsigned long, unsigned char);
103 void rds_in(pmt::pmt_t msg);
104};
105
106} /* namespace rds */
107} /* namespace gr */
108
109#endif /* INCLUDED_RDS_ENCODER_IMPL_H */
Definition encoder_impl.h:27
encoder_impl(unsigned char pty_locale, int pty, bool ms, std::string ps, double af1, bool tp, bool ta, int pi_country_code, int pi_coverage_area, int pi_reference_number, std::string radiotext)
virtual void set_ps(std::string ps)
Definition encoder.h:27
Definition decoder.h:23