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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_5.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> components_seen;
-
-bool fig0_5_is_complete(int components_id)
-{
- bool complete = components_seen.count(components_id);
-
- if (complete) {
- components_seen.clear();
- }
- else {
- components_seen.insert(components_id);
- }
-
- return complete;
-}
-
-// FIG 0/5 Service component language
-// ETSI EN 300 401 8.1.2
-bool fig0_5(fig0_common_t& fig0, int indent)
-{
- uint16_t SCId;
- uint8_t i = 1, SubChId, FIDCId, Language, Rfa;
- char tmpbuf[256];
- char desc[256];
- bool LS_flag, MSC_FIC_flag;
- bool complete = false;
-
- uint8_t* f = fig0.f;
-
- while (i < (fig0.figlen - 1)) {
- // iterate over service component language
- LS_flag = f[i] >> 7;
- if (LS_flag == 0) {
- // Short form (L/S = 0)
- MSC_FIC_flag = (f[i] >> 6) & 0x01;
- Language = f[i+1];
- if (MSC_FIC_flag == 0) {
- // 0: MSC in Stream mode and SubChId identifies the sub-channel
- SubChId = f[i] & 0x3F;
- sprintf(desc, "L/S flag=%d short form, MSC/FIC flag=%d MSC, SubChId=0x%X, Language=0x%X %s",
- LS_flag, MSC_FIC_flag, SubChId, Language,
- get_language_name(Language));
- }
- else {
- // 1: FIC and FIDCId identifies the component
- FIDCId = f[i] & 0x3F;
- sprintf(desc, "L/S flag=%d short form, MSC/FIC flag=%d FIC, FIDCId=0x%X, Language=0x%X %s",
- LS_flag, MSC_FIC_flag, FIDCId, Language,
- get_language_name(Language));
- }
-
- int key = (MSC_FIC_flag << 7) | (f[i] % 0x3F);
- complete |= fig0_5_is_complete(key);
- printbuf(desc, indent+1, NULL, 0);
- i += 2;
- }
- else {
- // Long form (L/S = 1)
- if (i < (fig0.figlen - 2)) {
- Rfa = (f[i] >> 4) & 0x07;
- SCId = (((uint16_t)f[i] & 0x0F) << 8) | (uint16_t)f[i+1];
- int key = (LS_flag << 15) | SCId;
- complete |= fig0_5_is_complete(key);
- Language = f[i+2];
- sprintf(desc, "L/S flag=%d long form", LS_flag);
- if (Rfa != 0) {
- sprintf(tmpbuf, ", Rfa=%d invalid value", Rfa);
- strcat(desc, tmpbuf);
- }
- sprintf(tmpbuf, ", SCId=0x%X, Language=0x%X %s",
- SCId, Language,
- get_language_name(Language));
- strcat(desc, tmpbuf);
- printbuf(desc, indent+1, NULL, 0);
- }
- i += 3;
- }
- }
-
- return complete;
-}
-