Initial commit.

VoiceTransmit/VoiceTransmit.cpp

@@ -0,0 +1,175 @@
+/*
+ *   Copyright (C) 2014 by Jonathan Naylor G4KLX
+ *
+ *   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "DStarDefines.h"
+#include "VoiceTransmit.h"
+
+int main(int argc, char** argv)
+{
+	bool res = ::wxInitialize();
+	if (!res) {
+		::fprintf(stderr, "voicetransmit: failed to initialise the wxWidgets library, exiting\n");
+		return 1;
+	}
+
+	if (argc < 3) {
+		::fprintf(stderr, "voicetransmit: invalid command line usage: voicetransmit <repeater> <file1> <file2> ..., exiting\n");
+		::wxUninitialize();
+		return 1;
+	}
+
+	wxString repeater = wxString(argv[1], wxConvLocal);
+	repeater.Replace(wxT("_"), wxT(" "));
+	repeater.resize(LONG_CALLSIGN_LENGTH, wxT(' '));
+	repeater.MakeUpper();
+
+	wxArrayString filenames;
+	for (int i = 2; i < argc; i++)
+		filenames.Add(wxString(argv[i], wxConvLocal));
+
+	CVoiceStore store(filenames);
+	bool opened = store.open();
+	if (!opened) {
+		::fprintf(stderr, "voicetransmit: unable to open one of the files, exiting\n");
+		::wxUninitialize();
+		return 1;
+	}
+
+	CVoiceTransmit tt(repeater, &store);
+	bool ret = tt.run();
+
+	store.close();
+
+	::wxUninitialize();
+
+	return ret ? 0 : 1;
+}
+
+CVoiceTransmit::CVoiceTransmit(const wxString& callsign, CVoiceStore* store) :
+m_socket(wxEmptyString, 0U),
+m_callsign(callsign),
+m_store(store)
+{
+	wxASSERT(store != NULL);
+}
+
+CVoiceTransmit::~CVoiceTransmit()
+{
+}
+
+bool CVoiceTransmit::run()
+{
+	bool opened = m_socket.open();
+	if (!opened)
+		return false;
+
+	in_addr address = CUDPReaderWriter::lookup(wxT("127.0.0.1"));
+
+	unsigned int id = CHeaderData::createId();
+
+	wxString callsignG = m_callsign.Left(LONG_CALLSIGN_LENGTH - 1U);
+	callsignG.Append(wxT("G"));
+
+	CHeaderData* header = m_store->getHeader();
+	if (header == NULL) {
+		m_socket.close();
+		return false;
+	}
+
+	header->setId(id);
+	header->setRptCall1(callsignG);
+	header->setRptCall2(m_callsign);
+	header->setDestination(address, G2_DV_PORT);
+
+	sendHeader(header);
+
+	delete header;
+
+	wxStopWatch timer;
+	timer.Start();
+
+	unsigned int out   = 0U;
+	unsigned int seqNo = 0U;
+
+	for (;;) {
+		unsigned int needed = timer.Time() / DSTAR_FRAME_TIME_MS;
+
+		while (out < needed) {
+			CAMBEData* ambe = m_store->getAMBE();
+
+			if (ambe == NULL) {
+				seqNo++;
+				if (seqNo >= 21U)
+					seqNo = 0U;
+
+				CAMBEData data;
+				data.setData(END_PATTERN_BYTES, DV_FRAME_LENGTH_BYTES);
+				data.setDestination(address, G2_DV_PORT);
+				data.setId(id);
+				data.setSeq(seqNo);
+				data.setEnd(true);
+
+				sendData(&data);
+
+				m_socket.close();
+
+				return true;
+			}
+
+			seqNo = ambe->getSeq();
+
+			ambe->setDestination(address, G2_DV_PORT);
+			ambe->setEnd(false);
+			ambe->setId(id);
+
+			sendData(ambe);
+
+			delete ambe;
+
+			out++;
+		}
+
+		::wxMilliSleep(10UL);
+	}
+}
+
+bool CVoiceTransmit::sendHeader(CHeaderData* header)
+{
+	wxASSERT(header != NULL);
+
+	unsigned char buffer[60U];
+	unsigned int length = header->getG2Data(buffer, 60U, true);
+
+	for (unsigned int i = 0U; i < 2U; i++) {
+		bool res = m_socket.write(buffer, length, header->getYourAddress(), header->getYourPort());
+		if (!res)
+			return false;
+	}
+
+	return true;
+}
+
+bool CVoiceTransmit::sendData(CAMBEData* data)
+{
+	wxASSERT(data != NULL);
+
+	unsigned char buffer[40U];
+	unsigned int length = data->getG2Data(buffer, 40U);
+
+	return m_socket.write(buffer, length, data->getYourAddress(), data->getYourPort());
+}