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-rw-r--r--lib/edi/ETIWriter.cpp286
1 files changed, 0 insertions, 286 deletions
diff --git a/lib/edi/ETIWriter.cpp b/lib/edi/ETIWriter.cpp
deleted file mode 100644
index bd051dd..0000000
--- a/lib/edi/ETIWriter.cpp
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- Copyright (C) 2016
- Matthias P. Braendli, matthias.braendli@mpb.li
-
- http://opendigitalradio.org
-
- 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 2 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, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-#include "ETIWriter.hpp"
-#include "crc.h"
-#include "Log.h"
-#include <stdio.h>
-#include <cassert>
-#include <stdexcept>
-#include <sstream>
-
-namespace EdiDecoder {
-
-using namespace std;
-
-void ETIWriter::update_protocol(
- const std::string& proto,
- uint16_t major,
- uint16_t minor)
-{
- m_proto_valid = (proto == "DETI" and major == 0 and minor == 0);
-
- if (not m_proto_valid) {
- throw std::invalid_argument("Wrong EDI protocol");
- }
-}
-
-void ETIWriter::reinit()
-{
- m_proto_valid = false;
- m_fc_valid = false;
- m_fic.clear();
- m_etiFrame.clear();
- m_subchannels.clear();
-}
-
-void ETIWriter::update_err(uint8_t err)
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot update ERR before protocol");
- }
- m_err = err;
-}
-
-void ETIWriter::update_fc_data(const eti_fc_data& fc_data)
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot update FC before protocol");
- }
-
- m_fc_valid = false;
- m_fc = fc_data;
-
- if (not m_fc.ficf) {
- throw std::invalid_argument("FIC must be present");
- }
-
- if (m_fc.mid > 4) {
- throw std::invalid_argument("Invalid MID");
- }
-
- if (m_fc.fp > 7) {
- throw std::invalid_argument("Invalid FP");
- }
-
- m_fc_valid = true;
-}
-
-void ETIWriter::update_fic(const std::vector<uint8_t>& fic)
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot update FIC before protocol");
- }
-
- m_fic = fic;
-}
-
-void ETIWriter::update_edi_time(
- uint32_t utco,
- uint32_t seconds)
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot update time before protocol");
- }
-
- m_utco = utco;
- m_seconds = seconds;
-
- // TODO check validity
- m_time_valid = true;
-
-}
-
-void ETIWriter::update_mnsc(uint16_t mnsc)
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot update MNSC before protocol");
- }
-
- m_mnsc = mnsc;
-}
-
-void ETIWriter::update_rfu(uint16_t rfu)
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot update RFU before protocol");
- }
-
- m_rfu = rfu;
-}
-
-void ETIWriter::add_subchannel(const eti_stc_data& stc)
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot add subchannel before protocol");
- }
-
- m_subchannels.push_back(stc);
-
- if (m_subchannels.size() > 64) {
- throw std::invalid_argument("Too many subchannels");
- }
-
-}
-
-void ETIWriter::assemble()
-{
- if (not m_proto_valid) {
- throw std::logic_error("Cannot assemble ETI before protocol");
- }
-
- if (not m_fc_valid) {
- throw std::logic_error("Cannot assemble ETI without FC");
- }
-
- if (m_fic.empty()) {
- throw std::logic_error("Cannot assemble ETI without FIC data");
- }
-
- // Accept zero subchannels, because of an edge-case that can happen
- // during reconfiguration. See ETS 300 799 Clause 5.3.3
-
- // TODO check time validity
-
- // ETS 300 799 Clause 5.3.2, but we don't support not having
- // a FIC
- if ( (m_fc.mid == 3 and m_fic.size() != 32 * 4) or
- (m_fc.mid != 3 and m_fic.size() != 24 * 4) ) {
- stringstream ss;
- ss << "Invalid FIC length " << m_fic.size() <<
- " for MID " << m_fc.mid;
- throw std::invalid_argument(ss.str());
- }
-
-
- std::vector<uint8_t> eti;
- eti.reserve(6144);
-
- eti.push_back(m_err);
-
- // FSYNC
- if (m_fc.fct() % 2 == 1) {
- eti.push_back(0xf8);
- eti.push_back(0xc5);
- eti.push_back(0x49);
- }
- else {
- eti.push_back(0x07);
- eti.push_back(0x3a);
- eti.push_back(0xb6);
- }
-
- // LIDATA
- // FC
- eti.push_back(m_fc.fct());
-
- const uint8_t NST = m_subchannels.size();
-
- eti.push_back((m_fc.ficf << 7) | NST);
-
- // We need to pack:
- // FP 3 bits
- // MID 2 bits
- // FL 11 bits
-
- // FL: EN 300 799 5.3.6
- uint16_t FL = NST + 1 + m_fic.size();
- for (const auto& subch : m_subchannels) {
- FL += subch.mst.size();
- }
-
- const uint16_t fp_mid_fl = (m_fc.fp << 13) | (m_fc.mid << 11) | FL;
-
- eti.push_back(fp_mid_fl >> 8);
- eti.push_back(fp_mid_fl & 0xFF);
-
- // STC
- for (const auto& subch : m_subchannels) {
- eti.push_back( (subch.scid << 2) | (subch.sad & 0x300) );
- eti.push_back( subch.sad & 0xff );
- eti.push_back( (subch.tpl << 2) | ((subch.stl() & 0x300) >> 8) );
- eti.push_back( subch.stl() & 0xff );
- }
-
- // EOH
- // MNSC
- eti.push_back(m_mnsc >> 8);
- eti.push_back(m_mnsc & 0xFF);
-
- // CRC
- // Calculate CRC from eti[4] to current position
- uint16_t eti_crc = 0xFFFF;
- eti_crc = crc16(eti_crc, &eti[4], eti.size() - 4);
- eti_crc ^= 0xffff;
- eti.push_back(eti_crc >> 8);
- eti.push_back(eti_crc & 0xFF);
-
- const size_t mst_start = eti.size();
- // MST
- // FIC data
- copy(m_fic.begin(), m_fic.end(), back_inserter(eti));
-
- // Data stream
- for (const auto& subch : m_subchannels) {
- copy(subch.mst.begin(), subch.mst.end(), back_inserter(eti));
- }
-
- // EOF
- // CRC
- uint16_t mst_crc = 0xFFFF;
- mst_crc = crc16(mst_crc, &eti[mst_start], eti.size() - mst_start);
- mst_crc ^= 0xffff;
- eti.push_back(mst_crc >> 8);
- eti.push_back(mst_crc & 0xFF);
-
- // RFU
- eti.push_back(m_rfu >> 8);
- eti.push_back(m_rfu);
-
- // TIST
- eti.push_back(m_fc.tsta >> 24);
- eti.push_back((m_fc.tsta >> 16) & 0xFF);
- eti.push_back((m_fc.tsta >> 8) & 0xFF);
- eti.push_back(m_fc.tsta & 0xFF);
-
- if (eti.size() > 6144) {
- throw std::logic_error("ETI frame cannot be longer than 6144");
- }
-
- eti.resize(6144, 0x55);
-
- m_etiFrame = eti;
-
-}
-
-std::vector<uint8_t> ETIWriter::getEtiFrame()
-{
- if (m_etiFrame.empty()) {
- return {};
- }
-
- vector<uint8_t> eti(move(m_etiFrame));
- reinit();
-
- return eti;
-}
-
-}
-
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