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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 /fig0_19.cpp
parent5542c8ecff635f9abc05b6b2ff255db02c2c9c46 (diff)
downloadetisnoop-4809f3c042a99a639542b1e6cd22657871113260.tar.gz
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Move all sources to src/
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-rw-r--r--fig0_19.cpp105
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diff --git a/fig0_19.cpp b/fig0_19.cpp
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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> clusters_seen;
-
-bool fig0_19_is_complete(int clusters_id)
-{
- bool complete = clusters_seen.count(clusters_id);
-
- if (complete) {
- clusters_seen.clear();
- }
- else {
- clusters_seen.insert(clusters_id);
- }
-
- return complete;
-}
-
-// FIG 0/19 Announcement switching
-// ETSI EN 300 401 8.1.6.2
-bool fig0_19(fig0_common_t& fig0, int indent)
-{
- uint16_t Asw_flags;
- uint8_t i = 1, j, Cluster_Id, SubChId, Rfa, RegionId_LP;
- char tmpbuf[256];
- char desc[256];
- bool New_flag, Region_flag;
- uint8_t* f = fig0.f;
- const int figtype = 0;
- bool complete = false;
-
- while (i < (fig0.figlen - 3)) {
- // iterate over announcement switching
- // Cluster Id, Asw flags, New flag, Region flag,
- // SubChId, Rfa, Region Id Lower Part
- Cluster_Id = f[i];
- complete |= fig0_19_is_complete(Cluster_Id);
- Asw_flags = ((uint16_t)f[i+1] << 8) | (uint16_t)f[i+2];
- New_flag = (f[i+3] >> 7);
- Region_flag = (f[i+3] >> 6) & 0x1;
- SubChId = (f[i+3] & 0x3F);
- sprintf(desc, "Cluster Id=0x%02x, Asw flags=0x%04x, New flag=%d %s, Region flag=%d last byte %s, SubChId=%d",
- Cluster_Id, Asw_flags, New_flag, (New_flag)?"new":"repeat", Region_flag, (Region_flag)?"present":"absent", SubChId);
- if (Region_flag) {
- if (i < (fig0.figlen - 4)) {
- // read region lower part
- Rfa = (f[i+4] >> 6);
- RegionId_LP = (f[i+4] & 0x3F);
- if (Rfa != 0) {
- sprintf(tmpbuf, ", Rfa=%d invalid value", Rfa);
- strcat(desc, tmpbuf);
- }
- sprintf(tmpbuf, ", Region Lower Part=0x%02x", RegionId_LP);
- strcat(desc, tmpbuf);
- }
- else {
- sprintf(tmpbuf, "missing Region Lower Part, fig length too short !");
- strcat(desc, tmpbuf);
- fprintf(stderr, "WARNING: FIG %d/%d length %d too short !\n", figtype, fig0.ext(), fig0.figlen);
- }
- }
- printbuf(desc, indent+1, NULL, 0);
- // decode announcement switching types
- for(j = 0; j < 16; j++) {
- if (Asw_flags & (1 << j)) {
- sprintf(desc, "Announcement switching=%s", get_announcement_type(j));
- printbuf(desc, indent+2, NULL, 0);
- }
- }
- i += (4 + Region_flag);
- }
-
- return complete;
-}
-