VBICodec Filter

 
Microsoft DirectShow 9.0

VBICodec Filter

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

The VBICodec filter slices raw digitized data from the vertical blanking interval (VBI).  Connect the input pin of this filter to VBI Out pin of an analog television capture filter. The filter has several output pins for the various VBI data services. Which output pins produce data depends on the input video standard.

VBI Service Video Standard
Teletext PAL
Wide screen signalling (WSS) PAL, NTSC(J)
Video program service (VPS) PAL
Closed captioning (CC) NTSC

Pin Data

Pin Major Type Minor Type
Input KSDATAFORMAT_TYPE_VBI KSDATAFORMAT_SUBTYPE_RAW8
Teletext Output MEDIATYPE_VBI MEDIASUBTYPE_TELETEXT
WSS Output MEDIATYPE_VBI MEDIASUBTYPE_WSS
VPS Output MEDIATYPE_VBI MEDIASUBTYPE_VPS
CC Output (1) MEDIATYPE_AUXLine21Data MEDIASUBTYPE_Line21_BytePair
CC Output (2) MEDIATYPE_AUXLine21Data MEDIASUBTYPE_Line21_BytePair

Filter Data

Property Value
Filter CLSID CLSID_VbiCodec
Merit MERIT_NORMAL
Filter Category AM_KSCATEGORY_VBICODEC_MI ("Multi-Instance Capable VBI Codecs")

The closed captioning output pins expose the ICCSubStreamFiltering interface, which can be used to filter the closed captioning services.

In Windows Vista and later, this filter replaces the CC Decoder filter and the WST Codec filter.

See Also


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