IDVB_EIT Interface

This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later.

The IDVB_EIT interface enables the client to get information from a DVB event information table (EIT). The IDvbSiParser::GetEIT method returns a pointer to this interface.

An EIT provides information about events in each service, such as the event name, the start time, and the duration. An EIT can hold information about the transport stream that carries it, or it can hold information about other transport streams. There are two types of EITs:

• Present/following EITs contain information about the current event and the next chronological event. This type of EIT can be used to create a simple user interface at the receiver.
• Schedule EITs contain a list of events that occur after the next event. This type of event can be used to create an electronic program guide (EPG).

EIT sections are given the following table identifiers (TIDs).

TID	Description
0x4E	Present/following EIT for this transport stream.
0x4F	Present/following EIT for another transport stream.
0x50 – 0x5F	Schedule EIT for this transport stream.
0x60 – 0x6F	Schedule EIT for another transport stream.

Methods

The IDVB_EIT interface inherits the methods of the IUnknown interface.

In addition, IDVB_EIT defines the following methods.

Method	Description
ConvertNextToCurrent	Converts a next table to a current table.
GetCountOfRecords	Returns the number of records in the EIT.
GetLastTableId	Returns the last table identifier used.
GetNextTable	Retrieves the next table that follows the current table.
GetOriginalNetworkId	Returns the original network identifier.
GetRecordCountOfDescriptors	Returns the number of descriptors for a record in the EIT.
GetRecordDescriptorByIndex	Retrieves a descriptor for a specified record in the EIT.
GetRecordDescriptorByTag	Searches a record in the EIT for a descriptor with a specified descriptor tag.
GetRecordDuration	Returns the event duration for a record in the EIT.
GetRecordEventId	Returns the event identifier for a record in the EIT.
GetRecordFreeCAMode	Queries whether any of the component streams for an event are scrambled.
GetRecordRunningStatus	Returns the running status of a particular event in the EIT.
GetRecordStartTime	Returns the event start time for a record in the EIT.
GetSegmentLastSectionNumber	Returns the section number of the last section in the subtable that contains this section.
GetServiceId	Returns the service identifier.
GetTransportStreamId	Returns the transport stream identifier (TSID) for the EIT.
GetVersionHash	Returns a hash value for this table instance.
GetVersionNumber	Returns the version number for the EIT.
Initialize	Initializes the object.
RegisterForNextTable	Registers the client to be notified when a next table arrives that will replace the current table.
RegisterForWhenCurrent	Registers the client to be notified when the table becomes current.

Requirements

Header

Declared in Dvbsiparser.h.

See Also

BDA Interfaces

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Build date: 12/4/2008