bool CAPRSTransmit::run()
{
//First see if the packet is Icom supported...
CAPRSPacket aprsPacket;
if(!CAPRSParser::Parse(m_text, aprsPacket)){
wxLogWarning(wxT("Unsupported APRS Format, ignoring => ") + m_text.Trim(true));
return false;
}
wxString textWithCRC(aprsPacket.Raw());
wxLogMessage(wxT("Supported APRS Format => ") + textWithCRC.Trim(true));
//add nececessary stuff to text, but keep it the original
textWithCRC.Replace(wxT("\n"), wxEmptyString);
if(!textWithCRC.EndsWith(wxT("\r"))) textWithCRC.Append(wxT("\r"));
wxString crc = wxString::Format(wxT("$$CRC%04X,"), calcCRC(textWithCRC));
textWithCRC.Prepend(crc);
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_repeaterCallsign.Left(LONG_CALLSIGN_LENGTH - 1U);
callsignG.Append(wxT("G"));
CHeaderData header;
header.setId(id);
header.setMyCall1(m_APRSCallsign);
header.setMyCall2(wxT("APRS"));
header.setRptCall1(callsignG);
header.setRptCall2(m_repeaterCallsign);
header.setYourCall(wxT("CQCQCQ "));
header.setDestination(address, G2_DV_PORT);
sendHeader(header);
CSlowDataEncoder encoder;
encoder.setHeaderData(header);
encoder.setGPSData(textWithCRC);
encoder.setTextData(wxT("APRS to DPRS"));
CAMBEData data;
data.setDestination(address, G2_DV_PORT);
data.setId(id);
wxStopWatch timer;
timer.Start();
unsigned int out = 0U;
unsigned int dataOut = 0U;
unsigned int needed = (encoder.getInterleavedDataLength() / (DATA_FRAME_LENGTH_BYTES)) * 2U;
while (dataOut < needed) {
data.setSeq(out);
unsigned char buffer[DV_FRAME_LENGTH_BYTES];
::memcpy(buffer + 0U, NULL_AMBE_DATA_BYTES, VOICE_FRAME_LENGTH_BYTES);
// Insert sync bytes when the sequence number is zero, slow data otherwise
if (out == 0U) {
::memcpy(buffer + VOICE_FRAME_LENGTH_BYTES, DATA_SYNC_BYTES, DATA_FRAME_LENGTH_BYTES);
} else {
encoder.getInterleavedData(buffer + VOICE_FRAME_LENGTH_BYTES);
dataOut++;
}
data.setData(buffer, DV_FRAME_LENGTH_BYTES);
sendData(data);
out++;
if (out == 21U) out = 0U;
}
data.setData(END_PATTERN_BYTES, DV_FRAME_LENGTH_BYTES);
data.setSeq(out >= 21U ? 0U : out);
data.setEnd(true);
sendData(data);
m_socket.close();
return true;
}
