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Diffstat (limited to 'src/fig0_13.cpp')
| -rw-r--r-- | src/fig0_13.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/fig0_13.cpp b/src/fig0_13.cpp new file mode 100644 index 0000000..ffb5b89 --- /dev/null +++ b/src/fig0_13.cpp @@ -0,0 +1,131 @@ +/* + 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 <set> + +/* EN 300 401, 8.1.20, User application information + * The combination of the SId and the SCIdS provides a service component + * identifier which is valid globally. + */ +using SId_t = int; +using SCIdS_t = int; +static std::set<std::pair<SId_t, SCIdS_t> > components_ids_seen; + +bool fig0_13_is_complete(SId_t SId, SCIdS_t SCIdS) +{ + auto key = std::make_pair(SId, SCIdS); + bool complete = components_ids_seen.count(key); + + if (complete) { + components_ids_seen.clear(); + } + else { + components_ids_seen.insert(key); + } + + return complete; +} + + +std::string get_fig_0_13_userapp(int user_app_type) +{ + switch (user_app_type) { + case 0x000: return "Reserved for future definition"; + case 0x001: return "Not used"; + case 0x002: return "MOT Slideshow"; + case 0x003: return "MOT Broadacst Web Site"; + case 0x004: return "TPEG"; + case 0x005: return "DGPS"; + case 0x006: return "TMC"; + case 0x007: return "EPG"; + case 0x008: return "DAB Java"; + case 0x44a: return "Journaline"; + default: return "Reserved for future applications"; + } +} + +// FIG 0/13 User application information +// ETSI EN 300 401 8.1.20 +bool fig0_13(fig0_common_t& fig0, int indent) +{ + uint32_t SId; + uint8_t SCIdS; + uint8_t No; + uint8_t* f = fig0.f; + const int figtype = 0; + char desc[256]; + bool complete = false; + + int k = 1; + + if (fig0.pd() == 0) { // Programme services, 16 bit SId + SId = (f[k] << 8) | + f[k+1]; + k+=2; + + SCIdS = f[k] >> 4; + No = f[k] & 0x0F; + k++; + } + else { // Data services, 32 bit SId + SId = (f[k] << 24) | + (f[k+1] << 16) | + (f[k+2] << 8) | + f[k+3]; + k+=4; + + SCIdS = f[k] >> 4; + No = f[k] & 0x0F; + k++; + + } + + complete |= fig0_13_is_complete(SId, SCIdS); + + sprintf(desc, "FIG %d/%d: SId=0x%X SCIdS=%u No=%u", + figtype, fig0.ext(), SId, SCIdS, No); + printbuf(desc, indent+1, NULL, 0); + + for (int numapp = 0; numapp < No; numapp++) { + uint16_t user_app_type = ((f[k] << 8) | + (f[k+1] & 0xE0)) >> 5; + uint8_t user_app_len = f[k+1] & 0x1F; + k+=2; + + sprintf(desc, "User Application %d '%s'; length %u", + user_app_type, + get_fig_0_13_userapp(user_app_type).c_str(), + user_app_len); + printbuf(desc, indent+2, NULL, 0); + } + + return complete; +} + |