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Diffstat (limited to 'src/fig0_18.cpp')
| -rw-r--r-- | src/fig0_18.cpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/fig0_18.cpp b/src/fig0_18.cpp new file mode 100644 index 0000000..46a399c --- /dev/null +++ b/src/fig0_18.cpp @@ -0,0 +1,112 @@ +/* + 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_18_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 0/18 Announcement support +// ETSI EN 300 401 8.1.6.1 +bool fig0_18(fig0_common_t& fig0, int indent) +{ + uint32_t key; + uint16_t SId, Asu_flags; + uint8_t i = 1, j, Rfa, Number_clusters; + char tmpbuf[256]; + char desc[256]; + uint8_t* f = fig0.f; + const int figtype = 0; + bool complete = false; + + while (i < (fig0.figlen - 4)) { + // iterate over announcement support + // SId, Asu flags, Rfa, Number of clusters + SId = ((uint16_t)f[i] << 8) | (uint16_t)f[i+1]; + complete |= fig0_18_is_complete(SId); + Asu_flags = ((uint16_t)f[i+2] << 8) | (uint16_t)f[i+3]; + Rfa = (f[i+4] >> 5); + Number_clusters = (f[i+4] & 0x1F); + sprintf(desc, "SId=0x%X, Asu flags=0x%04x", SId, Asu_flags); + if (Rfa != 0) { + sprintf(tmpbuf, ", Rfa=%d invalid value", Rfa); + strcat(desc, tmpbuf); + } + sprintf(tmpbuf, ", Number of clusters=%d", Number_clusters); + 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_clusters == 0) && (Asu_flags == 0)) { + sprintf(tmpbuf, ", CEI"); + strcat(desc, tmpbuf); + } + printbuf(desc, indent+1, NULL, 0); + i += 5; + + for(j = 0; (j < Number_clusters) && (i < fig0.figlen); j++) { + // iterate over Cluster Id + sprintf(desc, "Cluster Id=0x%X", f[i]); + printbuf(desc, indent+2, NULL, 0); + i++; + } + if (j < Number_clusters) { + sprintf(desc, "missing Cluster Id, fig length too short !"); + printbuf(desc, indent+1, NULL, 0); + fprintf(stderr, "WARNING: FIG %d/%d length %d too short !\n", figtype, fig0.ext(), fig0.figlen); + } + + // decode announcement support types + for(j = 0; j < 16; j++) { + if (Asu_flags & (1 << j)) { + sprintf(desc, "Announcement support=%s", get_announcement_type(j)); + printbuf(desc, indent+2, NULL, 0); + } + } + } + + return complete; +} + |