byte[] GetCurrentJpeg(string channel, out string timeStamp, out string currentPlateReading, out int channelIndex)
{
timeStamp = " ";
currentPlateReading = " ";
channelIndex = 0;
int c;
try
{
c = m_FrameGenerator.GetChannelIndex(channel);
if (c < 0)
{
m_Log.Log("GetCurrentJpeg received bad channel index: " + c.ToString(), ErrorLog.LOG_TYPE.FATAL);
return(null);
}
channelIndex = c;
FRAME currentFrame = null;
lock (m_FrameLock)
{
if (m_CurrentImageQ[c].Count > 0)
{
currentFrame = m_CurrentImageQ[c].Dequeue();
timeStamp = currentFrame.TimeStamp.ToString(m_AppData.TimeFormatStringForFileNames);
// is there an LPR result available at this time?
FRAME lprResultFrame = m_CurrentPlateNumberQ[c].Dequeue();
if (lprResultFrame != null)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < lprResultFrame.PlateNumberLatin.Length; i++)
{
string s = lprResultFrame.PlateNumberLatin[i];
if (i < lprResultFrame.PlateNumberLatin.Length - 1)
{
sb.Append(s + "^ "); // use the ^ to seperate strings, the comma is a parse field delimeter so do not use that
}
else
{
sb.Append(s); // do not put a delimeter after the last string
}
}
currentPlateReading = sb.ToString();
}
return(currentFrame.Jpeg);
}
else
{
return(null);
}
}
}
catch (Exception ex) { m_Log.Trace(ex, ErrorLog.LOG_TYPE.FATAL); return(null); }
}
