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authorMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-02 17:43:32 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-07 21:20:24 +0200
commit4809f3c042a99a639542b1e6cd22657871113260 (patch)
treedc0ec0f256eaceb79d63daa09591d4a6ef08cb73 /src/fig0_25.cpp
parent5542c8ecff635f9abc05b6b2ff255db02c2c9c46 (diff)
downloadetisnoop-4809f3c042a99a639542b1e6cd22657871113260.tar.gz
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Move all sources to src/
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+/*
+ Copyright (C) 2014 CSP Innovazione nelle ICT s.c.a r.l. (http://www.csp.it/)
+ Copyright (C) 2016 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();
+ }
+ else {
+ services_seen.insert(services_id);
+ }
+
+ return complete;
+}
+
+
+// FIG 0/25 fig0.oe() Announcement support
+// ETSI EN 300 401 8.1.10.5.1
+bool fig0_25(fig0_common_t& fig0, int indent)
+{
+ uint32_t key;
+ uint16_t SId, Asu_flags, EId;
+ uint8_t i = 1, j, Rfu, Number_EIds;
+ char tmpbuf[256];
+ char desc[256];
+ uint8_t* f = fig0.f;
+ bool complete = false;
+
+ 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];
+ 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);
+ sprintf(desc, "SId=0x%X, Asu flags=0x%X", SId, Asu_flags);
+ if (Rfu != 0) {
+ sprintf(tmpbuf, ", Rfu=%d invalid value", Rfu);
+ strcat(desc, tmpbuf);
+ }
+ sprintf(tmpbuf, ", Number of EIds=%d", Number_EIds);
+ strcat(desc, tmpbuf);
+ key = ((uint32_t)fig0.oe() << 17) | ((uint32_t)fig0.pd() << 16) | (uint32_t)SId;
+ sprintf(tmpbuf, ", database key=0x%05x", key);
+ strcat(desc, tmpbuf);
+ // CEI Change Event Indication
+ if (Number_EIds == 0) {
+ sprintf(tmpbuf, ", CEI");
+ strcat(desc, tmpbuf);
+ }
+ printbuf(desc, indent+1, NULL, 0);
+ i += 5;
+
+ 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];
+ sprintf(desc, "EId=0x%X", EId);
+ printbuf(desc, indent+2, NULL, 0);
+ i += 2;
+ }
+ if (j < Number_EIds) {
+ sprintf(desc, "missing EId, fig length too short !");
+ printbuf(desc, indent+1, NULL, 0);
+ fprintf(stderr, "WARNING: FIG 0/%d length %d too short !\n", fig0.ext(), fig0.figlen);
+ }
+
+ // decode fig0.oe() announcement support types
+ for(j = 0; j < 16; j++) {
+ if (Asu_flags & (1 << j)) {
+ sprintf(desc, "fig0.oe() Announcement support=%s", get_announcement_type(j));
+ printbuf(desc, indent+2, NULL, 0);
+ }
+ }
+ }
+
+ return complete;
+}
+