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/*
Copyright (C) 2014 CSP Innovazione nelle ICT s.c.a r.l. (http://www.csp.it/)
Copyright (C) 2017 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.push_back(strprintf("Ext flag=%d extended field %s",
Ext_flag, Ext_flag?"present":"absent"));
r.msgs.push_back(strprintf("LTO uniq=%d %s",
LTO_uniq,
LTO_uniq?"several time zones":"one time zone (time specified by Ensemble LTO)"));
r.msgs.push_back(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.push_back(strprintf("Ensemble ECC=0x%X", Ensemble_ECC));
r.msgs.push_back(strprintf("International Table Id=0x%X", International_Table_Id));
r.msgs.push_back(strprintf("database key=0x%x", key));
i += 3;
if (Ext_flag == 1) {
// extended field present
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.push_back(strprintf("Number of services=%d", Number_of_services));
r.msgs.push_back(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("CEI");
}
i++;
if (fig0.pd() == 0) {
// Programme services, 16 bit SId
if (i < fig0.figlen) {
ECC = f[i];
r.msgs.emplace_back(1, 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(2, 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(2, strprintf("SId 0x%X", SId));
}
i += (Number_of_services * 4);
}
}
}
}
r.complete = true;
return r;
}
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