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22 lines
710 B
Plaintext
22 lines
710 B
Plaintext
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vbidecode - VBI data decoder
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Copyright (C) 1997,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
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Vbidecode decodes some of the data structures that are transmitted in the
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VBI (Vertical Blanking Interval) of television transmissions.
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It can decode the following formats, with some restrictions for NTSC users.
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- videotext/teletext
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text based information pages (40x25 characters)
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- intercast
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WWW pages transmitted via line 31 videotext in a kind of compressed
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SLIP format
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- VPS
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channel information and signals for automatic start/stop of VCRs
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- Videocrypt 1 and 2
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VBI data is read from /dev/vbi0 which is provided by a Video Capture
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card such as those using the Bt848/Bt878 family of video capture chips.
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