1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
Copyright (C) 2014 CSP Innovazione nelle ICT s.c.a r.l. (http://www.csp.it/)
Copyright (C) 2018 Matthias P. Braendli (http://www.opendigitalradio.org)
Copyright (C) 2015 Data Path
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Authors:
Sergio Sagliocco <sergio.sagliocco@csp.it>
Matthias P. Braendli <matthias@mpb.li>
/ | |- ')|) |-|_ _ (|,_ .| _ ,_ \
Data Path \(|(||_(|/_| (||_||(a)_||||(|||.(_()|||/
*/
#include "figs.hpp"
#include <cstdio>
#include <cstring>
#include <map>
// FIG 0/9 Country, LTO and International table
// ETSI EN 300 401 8.1.3.2
fig_result_t fig0_9(fig0_common_t& fig0, const display_settings_t &disp)
{
uint32_t SId;
uint8_t Ensemble_ECC=0;
uint8_t i = 1, j, key, Number_of_services, ECC;
int8_t LTO;
bool LTO_uniq;
fig_result_t r;
bool Ext_flag;
uint8_t* f = fig0.f;
if (i < (fig0.figlen - 2)) {
// get Ensemble LTO, ECC and International Table Id
key = ((uint8_t)fig0.oe() << 1) | (uint8_t)fig0.pd();
Ext_flag = f[i] >> 7;
LTO_uniq = (f[i]>> 6) & 0x01;
int8_t Ensemble_LTO = f[i] & 0x3F;
if (Ensemble_LTO & 0x20) {
// negative Ensemble LTO
Ensemble_LTO |= 0xC0;
}
r.msgs.emplace_back("-");
r.msgs.emplace_back(1, strprintf("Ext flag=%d extended field %s",
Ext_flag, Ext_flag?"present":"absent"));
r.msgs.emplace_back(1, strprintf("LTO uniq=%d %s",
LTO_uniq,
LTO_uniq?"several time zones":"one time zone (time specified by Ensemble LTO)"));
r.msgs.emplace_back(1, strprintf("Ensemble LTO=0x%X %s%d:%02d",
(Ensemble_LTO & 0x3F), (Ensemble_LTO >= 0)?"":"-" , abs(Ensemble_LTO) >> 1, (Ensemble_LTO & 0x01) * 30));
if (abs(Ensemble_LTO) > 24) {
r.errors.push_back("LTO out of range -12 hours to +12 hours");
}
Ensemble_ECC = f[i+1];
uint8_t International_Table_Id = f[i+2];
set_international_table(International_Table_Id);
r.msgs.emplace_back(1, strprintf("Ensemble ECC=0x%X", Ensemble_ECC));
r.msgs.emplace_back(1, strprintf("International Table Id=0x%X", International_Table_Id));
r.msgs.emplace_back(1, strprintf("database key=0x%x", key));
i += 3;
if (Ext_flag == 1) {
// extended field present
r.msgs.emplace_back(1, "Subfields:");
while (i < fig0.figlen) {
// iterate over extended sub-field
Number_of_services = f[i] >> 6;
LTO = f[i] & 0x3F;
if (LTO & 0x20) {
// negative LTO
LTO |= 0xC0;
}
r.msgs.emplace_back(2, "-");
r.msgs.emplace_back(3, strprintf("Number of services=%d", Number_of_services));
r.msgs.emplace_back(3, strprintf("LTO=0x%X %s%d:%02d",
(LTO & 0x3F), (LTO >= 0)?"":"-" , abs(LTO) >> 1, (LTO & 0x01) * 30));
if (abs(LTO) > 24) {
r.errors.push_back("LTO in extended field out of range -12 hours to +12 hours");
}
// CEI Change Event Indication
if ((Number_of_services == 0) && (LTO == 0) /* && (Ext_flag == 1) */) {
r.msgs.emplace_back(3, "CEI=true");
}
i++;
if (fig0.pd() == 0) {
// Programme services, 16 bit SId
if (i < fig0.figlen) {
ECC = f[i];
r.msgs.emplace_back(3, strprintf("ECC=0x%X", ECC));
i++;
for(j = i; ((j < (i + (Number_of_services * 2))) && (j < fig0.figlen)); j += 2) {
// iterate over SId
SId = ((uint32_t)f[j] << 8) | (uint32_t)f[j+1];
r.msgs.emplace_back(3, strprintf("SId=0x%X", SId));
}
i += (Number_of_services * 2);
}
}
else {
// Data services, 32 bit SId
for(j = i; ((j < (i + (Number_of_services * 4))) && (j < fig0.figlen)); j += 4) {
// iterate over SId
SId = ((uint32_t)f[j] << 24) | ((uint32_t)f[j+1] << 16) |
((uint32_t)f[j+2] << 8) | (uint32_t)f[j+3];
r.msgs.emplace_back(3, strprintf("SId=0x%X", SId));
}
i += (Number_of_services * 4);
}
}
}
}
r.complete = true;
return r;
}
|
