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/*
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>
#include <unordered_set>
static std::unordered_set<int> services_seen;
bool fig0_25_is_complete(int services_id)
{
bool complete = services_seen.count(services_id);
if (complete) {
services_seen.clear();
}
services_seen.insert(services_id);
return complete;
}
// FIG 0/25 fig0.oe() Announcement support
// ETSI EN 300 401 8.1.10.5.1
fig_result_t fig0_25(fig0_common_t& fig0, const display_settings_t &disp)
{
uint32_t key;
uint16_t SId, Asu_flags, EId;
uint8_t i = 1, j, Rfu, Number_EIds;
fig_result_t r;
uint8_t* f = fig0.f;
while (i < fig0.figlen - 4) {
// iterate over other ensembles announcement support
// SId, Asu flags, Rfu, Number of EIds
SId = ((uint16_t)f[i] << 8) | (uint16_t)f[i+1];
r.complete |= fig0_25_is_complete(SId);
Asu_flags = ((uint16_t)f[i+2] << 8) | (uint16_t)f[i+3];
Rfu = (f[i+4] >> 4);
Number_EIds = (f[i+4] & 0x0F);
r.msgs.emplace_back("-");
r.msgs.emplace_back(1, strprintf("SId=0x%X", SId));
r.msgs.emplace_back(1, strprintf("Asu flags=0x%X", Asu_flags));
r.msgs.emplace_back(1, strprintf("Number of EIds=%d", Number_EIds));
if (Rfu != 0) {
r.errors.push_back(strprintf("Rfu=%d invalid value", Rfu));
}
key = ((uint32_t)fig0.oe() << 17) | ((uint32_t)fig0.pd() << 16) | (uint32_t)SId;
r.msgs.emplace_back(1, strprintf("database key=0x%05x", key));
// CEI Change Event Indication
if (Number_EIds == 0) {
r.msgs.emplace_back(1, "CEI=true");
}
i += 5;
std::stringstream eid_ss;
for (j = 0; j < Number_EIds && i < fig0.figlen - 1; j++) {
// iterate over EIds
EId = ((uint16_t)f[i] << 8) | (uint16_t)f[i+1];
if (j > 0) {
eid_ss << ", ";
}
eid_ss << strprintf("0x%04x", EId);
i += 2;
}
r.msgs.emplace_back(1, "EIds: [" + eid_ss.str() + "]");
if (j < Number_EIds) {
r.errors.push_back("missing EId, fig length too short !");
}
r.msgs.emplace_back(1, "OE Announcement support:");
// decode OE announcement support types
for (j = 0; j < 16; j++) {
if (Asu_flags & (1 << j)) {
r.msgs.emplace_back(2, strprintf("- %s", get_announcement_type(j)));
}
}
}
return r;
}
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