| Microsoft DirectX 9.0 |
The following interfaces are implemented on a BDA Network Provider filter, a BDA MPEG-2 Transport Information Filter (TIF), or a Guide Data Loader.
These interfaces are not used by applications. They are used solely to enable the Network Provider, TIF, and Loader to share information essential to tuning on MPEG-2 transport streams. These interfaces are documented so that independent software vendors (ISVs) can create guide data loaders and TV applications that support standard or non-standard network types. To use these interfaces, you should have a good understanding of MPEG-2 transport streams and the Microsoft Unified Tuning Model. (For more information, see The Microsoft Unified Tuning Model.)
The following transport information interfaces are supported.
| Interface | Description |
| IBDA_TIF_REGISTRATION | Enables a Transport Information Filter (TIF) to register itself with the Network Provider. |
| IEnumGuideDataProperties | Represents a collection of guide data properties for programs, services, and schedule entries that have been generated by the TIF. |
| IEnumTuneRequests | Represents a collection of tune request objects. |
| IGuideData | Implemented on the Transport Information Filter (TIF) and used by a guide data loader to enumerate the primary elements that it will use to create the objects that it will persist in some way. |
| IGuideDataEvent | IConnectionPoint notification callback interface that is implemented on the Network Provider filter or any other object that needs to receive these events from the TIF. |
| IGuideDataProperty | Represents the name, value, and language of a property associated with a Service, Program or ScheduleEntry. |
| IMPEG2_TIF_CONTROL | Implemented by the Network Provider and used by the TIF to register itself and request table sections carried on specific PIDs within the transport stream. |
| ITuneRequestInfo | Implemented on the TIF and used by the Network Provider when, in order to resolve a tune request, it needs additional network-specific information about locating transport streams and acquiring services. |