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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>
#include <unordered_set>
static std::unordered_set<int> clusters_seen;
bool fig0_28_is_complete(int cluster_id)
{
bool complete = clusters_seen.count(cluster_id);
if (complete) {
clusters_seen.clear();
}
else {
clusters_seen.insert(cluster_id);
}
return complete;
}
// FIG 0/28 FM Announcement switching
// ETSI EN 300 401 8.1.11.2.2
fig_result_t fig0_28(fig0_common_t& fig0, const display_settings_t &disp)
{
uint16_t PI;
uint8_t i = 1, Cluster_Id_Current_Ensemble, Region_Id_Current_Ensemble;
bool New_flag, Rfa;
fig_result_t r;
uint8_t* f = fig0.f;
while (i < fig0.figlen - 3) {
// iterate over FM announcement switching
Cluster_Id_Current_Ensemble = f[i];
r.complete = fig0_28_is_complete(Cluster_Id_Current_Ensemble);
New_flag = f[i+1] >> 7;
Rfa = (f[i+1] >> 6) & 0x01;
Region_Id_Current_Ensemble = f[i+1] & 0x3F;
PI = ((uint16_t)f[i+2] << 8) | (uint16_t)f[i+3];
r.msgs.push_back(strprintf("Cluster Id Current Ensemble=0x%X", Cluster_Id_Current_Ensemble));
if (Cluster_Id_Current_Ensemble == 0) {
r.errors.push_back("Cluster Id Current Ensemble invalid value 0");
}
r.msgs.emplace_back(1, strprintf("New flag=%d %s announcement",
New_flag, New_flag?"newly introduced":"repeated"));
if (Rfa != 0) {
r.errors.push_back(strprintf("Rfa=%d invalid value", Rfa));
}
r.msgs.emplace_back(1, strprintf("Region Id Current Ensemble=0x%X", Region_Id_Current_Ensemble));
r.msgs.emplace_back(1, strprintf("PI=0x%X", PI));
i += 4;
}
return r;
}
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