diff options
Diffstat (limited to 'contrib/edi/TagItems.cpp')
| -rw-r--r-- | contrib/edi/TagItems.cpp | 190 |
1 files changed, 179 insertions, 11 deletions
diff --git a/contrib/edi/TagItems.cpp b/contrib/edi/TagItems.cpp index 748f246..35a6852 100644 --- a/contrib/edi/TagItems.cpp +++ b/contrib/edi/TagItems.cpp @@ -10,32 +10,40 @@ */ /* - This file is part of ODR-DabMux. + This file is part of the ODR-mmbTools. - ODR-DabMux is free software: you can redistribute it and/or modify + 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. - ODR-DabMux is distributed in the hope that it will be useful, + 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 ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ + along with this program. If not, see <http://www.gnu.org/licenses/>. + */ #include "config.h" -#include "edi/TagItems.h" +#include "TagItems.h" #include <vector> #include <iostream> #include <string> -#include <stdint.h> +#include <cstdint> #include <stdexcept> namespace edi { +TagStarPTR::TagStarPTR(const std::string& protocol) + : m_protocol(protocol) +{ + if (m_protocol.size() != 4) { + throw std::runtime_error("TagStarPTR protocol invalid length"); + } +} + std::vector<uint8_t> TagStarPTR::Assemble() { //std::cerr << "TagItem *ptr" << std::endl; @@ -47,10 +55,7 @@ std::vector<uint8_t> TagStarPTR::Assemble() packet.push_back(0); packet.push_back(0x40); - if (protocol.size() != 4) { - throw std::runtime_error("TagStarPTR protocol invalid length"); - } - packet.insert(packet.end(), protocol.begin(), protocol.end()); + packet.insert(packet.end(), m_protocol.begin(), m_protocol.end()); // Major packet.push_back(0); @@ -62,6 +67,139 @@ std::vector<uint8_t> TagStarPTR::Assemble() return packet; } +std::vector<uint8_t> TagDETI::Assemble() +{ + std::string pack_data("deti"); + std::vector<uint8_t> packet(pack_data.begin(), pack_data.end()); + packet.reserve(256); + + // Placeholder for length + packet.push_back(0); + packet.push_back(0); + packet.push_back(0); + packet.push_back(0); + + uint8_t fct = dlfc % 250; + uint8_t fcth = dlfc / 250; + + + uint16_t detiHeader = fct | (fcth << 8) | (rfudf << 13) | (ficf << 14) | (atstf << 15); + packet.push_back(detiHeader >> 8); + packet.push_back(detiHeader & 0xFF); + + uint32_t etiHeader = mnsc | (rfu << 16) | (rfa << 17) | + (fp << 19) | (mid << 22) | (stat << 24); + packet.push_back((etiHeader >> 24) & 0xFF); + packet.push_back((etiHeader >> 16) & 0xFF); + packet.push_back((etiHeader >> 8) & 0xFF); + packet.push_back(etiHeader & 0xFF); + + if (atstf) { + packet.push_back(utco); + + packet.push_back((seconds >> 24) & 0xFF); + packet.push_back((seconds >> 16) & 0xFF); + packet.push_back((seconds >> 8) & 0xFF); + packet.push_back(seconds & 0xFF); + + packet.push_back((tsta >> 16) & 0xFF); + packet.push_back((tsta >> 8) & 0xFF); + packet.push_back(tsta & 0xFF); + } + + if (ficf) { + for (size_t i = 0; i < fic_length; i++) { + packet.push_back(fic_data[i]); + } + } + + if (rfudf) { + packet.push_back((rfud >> 16) & 0xFF); + packet.push_back((rfud >> 8) & 0xFF); + packet.push_back(rfud & 0xFF); + } + + // calculate and update size + // remove TAG name and TAG length fields and convert to bits + uint32_t taglength = (packet.size() - 8) * 8; + + // write length into packet + packet[4] = (taglength >> 24) & 0xFF; + packet[5] = (taglength >> 16) & 0xFF; + packet[6] = (taglength >> 8) & 0xFF; + packet[7] = taglength & 0xFF; + + dlfc = (dlfc+1) % 5000; + + /* + std::cerr << "TagItem deti, packet.size " << packet.size() << std::endl; + std::cerr << " fic length " << fic_length << std::endl; + std::cerr << " length " << taglength / 8 << std::endl; + */ + return packet; +} + +void TagDETI::set_edi_time(const std::time_t t, int tai_utc_offset) +{ + utco = tai_utc_offset - 32; + + const std::time_t posix_timestamp_1_jan_2000 = 946684800; + + seconds = t - posix_timestamp_1_jan_2000 + utco; +} + +std::vector<uint8_t> TagESTn::Assemble() +{ + std::string pack_data("est"); + std::vector<uint8_t> packet(pack_data.begin(), pack_data.end()); + packet.reserve(mst_length*8 + 16); + + packet.push_back(id); + + // Placeholder for length + packet.push_back(0); + packet.push_back(0); + packet.push_back(0); + packet.push_back(0); + + if (tpl > 0x3F) { + throw std::runtime_error("TagESTn: invalid TPL value"); + } + + if (sad > 0x3FF) { + throw std::runtime_error("TagESTn: invalid SAD value"); + } + + if (scid > 0x3F) { + throw std::runtime_error("TagESTn: invalid SCID value"); + } + + uint32_t sstc = (scid << 18) | (sad << 8) | (tpl << 2) | rfa; + packet.push_back((sstc >> 16) & 0xFF); + packet.push_back((sstc >> 8) & 0xFF); + packet.push_back(sstc & 0xFF); + + for (size_t i = 0; i < mst_length * 8; i++) { + packet.push_back(mst_data[i]); + } + + // calculate and update size + // remove TAG name and TAG length fields and convert to bits + uint32_t taglength = (packet.size() - 8) * 8; + + // write length into packet + packet[4] = (taglength >> 24) & 0xFF; + packet[5] = (taglength >> 16) & 0xFF; + packet[6] = (taglength >> 8) & 0xFF; + packet[7] = taglength & 0xFF; + + /* + std::cerr << "TagItem ESTn, length " << packet.size() << std::endl; + std::cerr << " mst_length " << mst_length << std::endl; + */ + return packet; +} + std::vector<uint8_t> TagDSTI::Assemble() { std::string pack_data("dsti"); @@ -134,6 +272,35 @@ void TagDSTI::set_edi_time(const std::time_t t, int tai_utc_offset) seconds = t - posix_timestamp_1_jan_2000 + utco; } +#if 0 +/* Update the EDI time. t is in UTC, TAI offset is requested from adjtimex */ +void TagDSTI::set_edi_time(const std::time_t t) +{ + if (tai_offset_cache_updated_at == 0 or tai_offset_cache_updated_at + 3600 < t) { + struct timex timex_request; + timex_request.modes = 0; + + int err = adjtimex(&timex_request); + if (err == -1) { + throw std::runtime_error("adjtimex failed"); + } + + if (timex_request.tai == 0) { + throw std::runtime_error("CLOCK_TAI is not properly set up"); + } + tai_offset_cache = timex_request.tai; + tai_offset_cache_updated_at = t; + + fprintf(stderr, "adjtimex: %d, tai %d\n", err, timex_request.tai); + } + + utco = tai_offset_cache - 32; + + const std::time_t posix_timestamp_1_jan_2000 = 946684800; + + seconds = t - posix_timestamp_1_jan_2000 + utco; +} +#endif std::vector<uint8_t> TagSSm::Assemble() { @@ -192,6 +359,7 @@ std::vector<uint8_t> TagSSm::Assemble() return packet; } + std::vector<uint8_t> TagStarDMY::Assemble() { std::string pack_data("*dmy"); |