internal override TestFrameResult TestTimeStamp(StateContext context, OsdFrameInfo frameTimestamp)
{
attempts++;
if (lastGoodTimeStamp == null)
{
if (frameTimestamp.FrameInfoIsOk())
lastGoodTimeStamp = frameTimestamp;
}
else
{
if (!frameTimestamp.FrameInfoIsOk() ||
lastGoodTimeStamp.SecondField.FieldNumber + 1 != frameTimestamp.FirstField.FieldNumber ||
Math.Abs(new TimeSpan(frameTimestamp.FirstField.TimeStamp.Ticks - lastGoodTimeStamp.SecondField.TimeStamp.Ticks).TotalMilliseconds - 20) > 1)
{
lastGoodTimeStamp = null;
}
else
{
secondLastGoodTimeStamp = frameTimestamp;
context.LastTimeStamp = secondLastGoodTimeStamp;
context.TransitionToState(CalibratedState.Instance);
}
}
return attempts > 4 ? TestFrameResult.ErrorSaveScreenShotImages : TestFrameResult.Undefined;
}
internal override TestFrameResult TestTimeStamp(StateContext context, OsdFrameInfo frameTimestamp)
{
if (lastTimeStamp.SecondField.FieldNumber + 1 == frameTimestamp.FirstField.FieldNumber &&
Math.Abs(new TimeSpan(frameTimestamp.FirstField.TimeStamp.Ticks - lastTimeStamp.SecondField.TimeStamp.Ticks).TotalMilliseconds - 20) <= 1)
{
// All good
lastTimeStamp = frameTimestamp;
return TestFrameResult.Okay;
}
suggestedTimeStampTestResult = TestFrameResult.Undefined;
// Find, record and try to solve problems
#region Frame/Field Number Corrections
long expectedFieldNumber = lastTimeStamp.SecondField.FieldNumber + 1;
int attempts = 5;
while (expectedFieldNumber != frameTimestamp.FirstField.FieldNumber && attempts > 0)
{
// Problem with first frame number
long correctedFieldNo = CorrectField(expectedFieldNumber, frameTimestamp.FirstField.FieldNumber);
frameTimestamp.FirstField.FieldNumber = correctedFieldNo;
frameTimestamp.FrameNumber = correctedFieldNo;
attempts--;
}
attempts = 5;
expectedFieldNumber = frameTimestamp.FirstField.FieldNumber + 1;
while (expectedFieldNumber != frameTimestamp.SecondField.FieldNumber && attempts > 0)
{
// Problem with first frame number
long correctedFieldNo = CorrectField(expectedFieldNumber, frameTimestamp.SecondField.FieldNumber);
frameTimestamp.SecondField.FieldNumber = correctedFieldNo;
attempts--;
}
#endregion
#region TimeStamp Corrections
long expectedTicks = lastTimeStamp.SecondField.TimeStamp.Ticks + FIELD_LENGTH_IN_TICKS;
while (Math.Abs(new TimeSpan(frameTimestamp.FirstField.TimeStamp.Ticks - expectedTicks).TotalMilliseconds) > 1)
{
// Correct the timestamp of the first field
long correctedTicks = CorrectTimeStamp(expectedTicks, frameTimestamp.FirstField.TimeStamp.Ticks);
frameTimestamp.FirstField.TimeStamp = new DateTime(correctedTicks);
}
#endregion
frameTimestamp.ReCalculate();
lastTimeStamp = frameTimestamp;
return suggestedTimeStampTestResult;
}
internal override void Reset(StateContext context)
{
lastGoodTimeStamp = null;
secondLastGoodTimeStamp = null;
attempts = 0;
}
internal override void Reset(StateContext context)
{
lastTimeStamp = context.LastTimeStamp;
correctedChars.Clear();
}
public string Initialize(OcrConfiguration ocrConfig, int imageWidth, int imageHeight)
{
this.ocrConfig = ocrConfig;
for (int i = 0; i < ocrConfig.Alignment.CharPositions.Count; i++)
{
int leftPos = ocrConfig.Alignment.CharPositions[i];
var ocredChar = new OcredChar(i, leftPos, ocrConfig.Alignment.CharWidth, ocrConfig.Alignment.CharHeight);
ocredChar.PopulateZones(ocrConfig.Zones);
ocredCharsOdd.Add(ocredChar);
ocredChar = new OcredChar(i, leftPos, ocrConfig.Alignment.CharWidth, ocrConfig.Alignment.CharHeight);
ocredChar.PopulateZones(ocrConfig.Zones);
ocredCharsEven.Add(ocredChar);
}
zoneChecker = new OcrZoneChecker(
ocrConfig,
ocrConfig.Alignment.Width,
ocrConfig.Alignment.Height,
ocrConfig.Zones,
ocrConfig.Alignment.CharPositions);
charRecognizer = new OcrCharRecognizer(
ocrConfig.Zones,
ocrConfig.CharDefinitions);
cameraImage = new CameraImage();
testContext = new StateContext();
generateDebugImages = false;
return null;
}
internal abstract TestFrameResult TestTimeStamp(StateContext context, OsdFrameInfo frameTimestamp);
internal abstract void Reset(StateContext context);