/// <summary>
/// Parse the summary data.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the summary data.</param>
/// <param name="index">Index of the first byte of the summary data in the MPEG2 section.</param>
/// <param name="baseDate">The base date for the program events.</param>
internal void Process(byte[] byteData, int index, DateTime baseDate)
{
lastIndex = index;
try
{
eventID = Utils.Convert2BytesToInt(byteData, lastIndex);
lastIndex += 2;
length = ((byteData[lastIndex] & 0x0f) * 256) + byteData[lastIndex + 1];
lastIndex += 2;
int recordLength = length;
while (recordLength != 0)
{
OpenTVRecordBase record = OpenTVRecordBase.Instance(byteData, lastIndex);
Records.Add(record);
lastIndex += record.TotalLength;
recordLength -= record.TotalLength;
}
Validate();
}
catch (IndexOutOfRangeException)
{
throw (new ArgumentOutOfRangeException("The Open TV Summary Data message is short"));
}
}
/// <summary>
/// Create an instance of the record class.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the record.</param>
/// <param name="index">The index of the tag byte of the record.</param>
/// <returns>A descriptor instance.</returns>
internal static OpenTVRecordBase Instance(byte[] byteData, int index)
{
OpenTVRecordBase record;
switch ((int)byteData[index])
{
case OpenTVTitleDataRecord.TagValue:
record = new OpenTVTitleDataRecord();
break;
case OpenTVShortDescriptionRecord.TagValue:
record = new OpenTVShortDescriptionRecord();
break;
case OpenTVExtendedDescriptionRecord.TagValue:
record = new OpenTVExtendedDescriptionRecord();
break;
case OpenTVSeriesLinkRecord.TagValue:
record = new OpenTVSeriesLinkRecord();
break;
default:
record = new OpenTVRecordBase();
break;
}
record.tag = (int)byteData[index];
index++;
record.length = (int)byteData[index];
index++;
record.Process(byteData, index);
return(record);
}
/// <summary>
/// Parse the title data.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the title data.</param>
/// <param name="index">Index of the first byte of the title data in the MPEG2 section.</param>
/// <param name="baseDate">The base date for the programs.</param>
/// <param name="channel">The channel for the data.</param>
/// <param name="pid">The PID of the section.</param>
/// <param name="table">The table ID of the section.</param>
internal void Process(byte[] byteData, int index, DateTime baseDate, int channel, int pid, int table)
{
lastIndex = index;
this.pid = pid;
this.table = table;
this.baseDate = baseDate;
try
{
eventID = Utils.Convert2BytesToInt(byteData, lastIndex);
lastIndex += 2;
length = ((byteData[lastIndex] & 0x0f) * 256) + byteData[lastIndex + 1];
lastIndex += 2;
int recordLength = length;
while (recordLength != 0)
{
OpenTVRecordBase record = OpenTVRecordBase.Instance(byteData, lastIndex);
Records.Add(record);
lastIndex += record.TotalLength;
recordLength -= record.TotalLength;
}
timeStamp = DateTime.Now;
Validate();
}
catch (IndexOutOfRangeException)
{
throw (new ArgumentOutOfRangeException("lastIndex = " + lastIndex));
}
}
/// <summary>
/// Create an instance of the record class.
/// </summary>
/// <param name="byteData">The MPEG2 section containing the record.</param>
/// <param name="index">The index of the tag byte of the record.</param>
/// <returns>A descriptor instance.</returns>
internal static OpenTVRecordBase Instance(byte[] byteData, int index)
{
OpenTVRecordBase record;
switch ((int)byteData[index])
{
case OpenTVTitleDataRecord.TagValue:
record = new OpenTVTitleDataRecord();
break;
case OpenTVShortDescriptionRecord.TagValue:
record = new OpenTVShortDescriptionRecord();
break;
case OpenTVExtendedDescriptionRecord.TagValue:
record = new OpenTVExtendedDescriptionRecord();
break;
case OpenTVSeriesLinkRecord.TagValue:
record = new OpenTVSeriesLinkRecord();
break;
default:
record = new OpenTVRecordBase();
break;
}
record.tag = (int)byteData[index];
index++;
record.length = (int)byteData[index];
index++;
record.Process(byteData, index);
return (record);
}
