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-rw-r--r--lib/edi/STIWriter.cpp138
1 files changed, 138 insertions, 0 deletions
diff --git a/lib/edi/STIWriter.cpp b/lib/edi/STIWriter.cpp
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+++ b/lib/edi/STIWriter.cpp
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+/*
+ Copyright (C) 2019
+ 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 "STIWriter.hpp"
+#include "crc.h"
+#include "Log.h"
+#include <cstdio>
+#include <cassert>
+#include <stdexcept>
+#include <sstream>
+#include <ctime>
+#include <iostream>
+#include <iomanip>
+#include <sstream>
+
+namespace EdiDecoder {
+
+using namespace std;
+
+void STIWriter::update_protocol(
+ const std::string& proto,
+ uint16_t major,
+ uint16_t minor)
+{
+ m_proto_valid = (proto == "DSTI" and major == 0 and minor == 0);
+
+ if (not m_proto_valid) {
+ throw std::invalid_argument("Wrong EDI protocol");
+ }
+}
+
+void STIWriter::reinit()
+{
+ m_proto_valid = false;
+ m_management_data_valid = false;
+ m_stat_valid = false;
+ m_time_valid = false;
+ m_payload_valid = false;
+ m_stiFrame.frame.clear();
+}
+
+void STIWriter::update_stat(uint8_t stat, uint16_t spid)
+{
+ m_stat = stat;
+ m_spid = spid;
+ m_stat_valid = true;
+
+ if (m_stat != 0xFF) {
+ etiLog.log(warn, "STI errorlevel %02x", m_stat);
+ }
+}
+
+void STIWriter::update_rfad(std::array<uint8_t, 9> rfad)
+{
+ (void)rfad;
+}
+
+void STIWriter::update_sti_management(const sti_management_data& data)
+{
+ m_management_data = data;
+ m_management_data_valid = true;
+}
+
+void STIWriter::add_payload(sti_payload_data&& payload)
+{
+ m_payload = move(payload);
+ m_payload_valid = true;
+}
+
+void STIWriter::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 STIWriter::assemble()
+{
+ if (not m_proto_valid) {
+ throw std::logic_error("Cannot assemble STI before protocol");
+ }
+
+ if (not m_management_data_valid) {
+ throw std::logic_error("Cannot assemble STI before management data");
+ }
+
+ if (not m_payload_valid) {
+ throw std::logic_error("Cannot assemble STI without frame data");
+ }
+
+ // TODO check time validity
+
+ // Do copies so as to preserve existing payload data
+ m_stiFrame.frame = m_payload.istd;
+ m_stiFrame.timestamp.seconds = m_seconds;
+ m_stiFrame.timestamp.utco = m_utco;
+}
+
+sti_frame_t STIWriter::getFrame()
+{
+ if (m_stiFrame.frame.empty()) {
+ return {};
+ }
+
+ sti_frame_t sti;
+ swap(sti, m_stiFrame);
+ reinit();
+ return sti;
+}
+
+}
+