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Diffstat (limited to 'src/fig0_14.cpp')
-rw-r--r-- | src/fig0_14.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/fig0_14.cpp b/src/fig0_14.cpp new file mode 100644 index 0000000..e72d121 --- /dev/null +++ b/src/fig0_14.cpp @@ -0,0 +1,81 @@ +/* + 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> subch_ids_seen; + +bool fig0_14_is_complete(int subch_id) +{ + bool complete = subch_ids_seen.count(subch_id); + + if (complete) { + subch_ids_seen.clear(); + } + else { + subch_ids_seen.insert(subch_id); + } + + return complete; +} + + +// fig 0/14 FEC Scheme: this 2-bit field shall indicate the Forward Error Correction scheme in use, as follows: +const char *FEC_schemes_str[4] = { + "no FEC scheme applied", + "FEC scheme applied according to ETSI EN 300 401 clause 5.3.5", + "reserved for future definition", + "reserved for future definition" +}; + + +// FIG 0/14 FEC sub-channel organization +// ETSI EN 300 401 6.2.2 +bool fig0_14(fig0_common_t& fig0, int indent) +{ + uint8_t i = 1, SubChId, FEC_scheme; + uint8_t* f = fig0.f; + char desc[256]; + bool complete = false; + + while (i < fig0.figlen) { + // iterate over Sub-channel + SubChId = f[i] >> 2; + complete |= fig0_14_is_complete(SubChId); + FEC_scheme = f[i] & 0x3; + sprintf(desc, "SubChId=0x%X, FEC scheme=%d %s", + SubChId, FEC_scheme, FEC_schemes_str[FEC_scheme]); + printbuf(desc, indent+1, NULL, 0); + i++; + } + + return complete; +} + |