Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 and later.
The IDvbFrequencyListDescriptor interface enables the client to get a frequency list descriptor from a DVB stream. The frequency list descriptor may be present in the network information table (NIT). For more information, refer to ETSI EN 300 468.
Methods
The IDvbFrequencyListDescriptor interface inherits the methods of the IUnknown interface.
In addition, IDvbFrequencyListDescriptor defines the following methods.
| Method | Description |
|---|---|
Returns a flag that specifies how the frequency is coded. |
|
Returns the number of records in the frequency list descriptor. |
|
Returns the length of the descriptor body. |
|
Returns the frequency at a specified index in the frequency list. |
|
Returns the descriptor tag. |
Remarks
To obtain a pointer to this interface, do the following:
- Call IDvbSiParser::GetNIT to get the IDVB_NIT interface.
- Call IDVB_NIT::GetRecordDescriptorByTag and pass in the frequency list descriptor tag (0x62). If the descriptor is present, the method returns an IGenericDescriptor pointer.
- Query the returned IGenericDescriptor pointer for the IDvbFrequencyListDescriptor interface.
Requirements
| Header | Declared in Dvbsiparser.h. |
See Also
Send comments about this topic to Microsoft
Build date: 12/4/2008