IPMT Interface

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The IPMT interface enables the client to get information from a program map table (PMT). The IAtscPsipParser::GetPMT method returns a pointer to this interface.

The PMT may contain one or more table-wide descriptors. In addition, each record in the PMT may have one or more descriptors. To get the table-wide descriptors, use the GetTableDescriptorByIndex or GetTableDescriptorByTag method. To get the record descriptors, use the GetRecordDescriptorByIndex or GetRecordDescriptorByTag method.

Methods

The IPMT interface inherits the methods of the IUnknown interface.

In addition, IPMT defines the following methods.

Method Description

ConvertNextToCurrent

Converts a next table to a current table.

GetCountOfRecords

Returns the number of records in the PMT.

GetCountOfTableDescriptors

Returns the number of table-wide descriptors in the PMT.

GetNextTable

Retrieves the next table that follows the current table.

GetPcrPid

Returns the packet identifier (PID) of the packets that contain the Program Clock Reference (PCR) fields for this program.

GetProgramNumber

Returns the program number for the PMT.

GetRecordCountOfDescriptors

Returns the number of descriptors for a record in the PMT.

GetRecordDescriptorByIndex

Retrieves a descriptor for a specified record in the PMT.

GetRecordDescriptorByTag

Searches a record in the PMT for a descriptor with a specified descriptor tag.

GetRecordElementaryPid

Returns the PID for a given elementary stream in the program.

GetRecordStreamType

Returns the stream type for a given elementary stream in the program.

GetTableDescriptorByIndex

Retrieves a table-wide descriptor for the PMT.

GetTableDescriptorByTag

Searches the PMT for a table-wide descriptor with the specified descriptor tag.

GetVersionNumber

Returns the version number for the PMT.

Initialize

Initializes the object.

QueryMPEInfo

Returns the Multi-Protocol Encapsulation (MPE) information in the PMT, if any.

QueryServiceGatewayInfo

Returns the DSM-CC service gateway information in the PMT, if any.

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 Mpeg2PsiParser.h.

See Also

BDA Interfaces

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Build date: 12/4/2008