public bool ExtractTime(int frameNo, int frameStep, uint[] data, bool debug, out DateTime time)
{
LastOddFieldOSD = null;
LastEvenFieldOSD = null;
if (m_VideoController != null)
{
// Leave this to capture statistics
m_VideoController.RegisterExtractingOcrTimestamps();
}
m_LatestFrameImage = data;
// TODO: Add main OCR Implementation HERE
// NOTE: if there is an error extracting the timestamp then call m_VideoController.RegisterOcrError(); for Tangra to show a counter in the status bar with number of errors so far
// NOTE: This dummy implementation simply marks all frames as OCR errors
if (m_VideoController != null)
{
m_VideoController.RegisterOcrError();
}
// NOTE: See IotaVtiOrcManaged.ExtractDateTime() for ideas about checking incorrectly extracted times and attempting to correct them.
time = DateTime.MinValue;
return(false);
}
public bool ExtractTime(int frameNo, int frameStep, uint[] data, bool debug, out DateTime time)
{
LastOddFieldOSD = null;
if (m_Processor.IsCalibrated && m_TimeStampComposer != null)
{
if (m_VideoController != null)
{
m_VideoController.RegisterExtractingOcrTimestamps();
}
PrepareOsdVideoFields(data);
m_Processor.Process(m_OddFieldPixelsPreProcessed, m_FieldAreaWidth, m_FieldAreaHeight, null, frameNo, true);
LastOddFieldOSD = m_Processor.CurrentOcredTimeStamp;
m_Processor.Process(m_EvenFieldPixelsPreProcessed, m_FieldAreaWidth, m_FieldAreaHeight, null, frameNo, false);
LastEvenFieldOSD = m_Processor.CurrentOcredTimeStamp;
string failedReason;
if (m_InitializationData.IntegratedAAVFrames > 0)
{
time = m_TimeStampComposer.ExtractAAVDateTime(frameNo, frameStep, LastOddFieldOSD, LastEvenFieldOSD, out failedReason);
LastFailedReason = failedReason;
}
else
{
time = m_TimeStampComposer.ExtractDateTime(frameNo, frameStep, LastOddFieldOSD, LastEvenFieldOSD, out failedReason);
LastFailedReason = failedReason;
}
}
else
{
time = DateTime.MinValue;
}
return(time != DateTime.MinValue);
}