bool IGCParser::readBRecord(const char *line, int len)
{
qreal lat, lon, ele;
QTime time;
if (len < 35)
return false;
if (!readTimestamp(line + 1, time)) {
_errorString = "Invalid timestamp";
return false;
}
if (!readLat(line + 7, lat)) {
_errorString = "Invalid latitude";
return false;
}
if (!readLon(line + 15, lon)) {
_errorString = "Invalid longitude";
return false;
}
if (!readAltitude(line + 24, ele)) {
_errorString = "Invalid altitude";
return false;
}
if (time < _time)
_date = _date.addDays(1);
_time = time;
Trackpoint t(Coordinates(lon, lat));
t.setTimestamp(QDateTime(_date, _time, Qt::UTC));
t.setElevation(ele);
_tracks.last().append(t);
return true;
}
PacketStreamReader::FrameInfo PacketStreamReader::Stream::peekFrameHeader(const PacketStreamReader& p)
{
if (_frame)
return _frame;
_frame.frame_streampos = tellg();
if (peekTag() == TAG_SRC_JSON)
{
readTag(TAG_SRC_JSON);
_frame.src = readUINT();
json::parse(_frame.meta, *this);
}
_frame.packet_streampos = tellg();
readTag(TAG_SRC_PACKET);
_frame.time = readTimestamp();
if (_frame)
{
if (readUINT() != _frame.src)
throw std::runtime_error("Frame preceded by metadata for a mismatched source. Stream may be corrupt.");
}
else
_frame.src = readUINT();
_frame.size = p.Sources()[_frame.src].data_size_bytes;
if (!_frame.size)
_frame.size = readUINT();
_frame.sequence_num = p.GetPacketIndex(_frame.src);
_tag = TAG_SRC_PACKET;
return _frame;
}
time_t readTimestampUTC(char *timestampBuffer, time_t referenceTime)
{
return readTimestamp(timestampBuffer, referenceTime, 1);
}
