VBI Insert with own TTX?
- From: Stefan de Konink <skinkie (at) xs4all.nl>
- Date: Thu, 30 Mar 2006 01:46:16 +0200
Hello,
I would like to know if anyone can help me with a) a hardware
recommendation or b) a software solution that allows the insertion of
TTX data into a video-output using cheap consumer hardware.
So basically I want to implement two features:
- Program guide (RSS based) TTX/100
- using teletext/videotext as a linux terminal on a television TTX/899
Normal composite TV-Out should 'just' show a normal X session on
Composite-output.
Usually this list has a lot about 'decoding' VBI data, but there must be
ways to encode it/put it on the first few lines as well.
So split in parts:
- Would it be possible to insert it as pixel manipulated line of the
normal image? (For example to use a OpenGL VSync)
- If not is the only option to try to find out how different TV encoder
chips work with VBI?
- Could the zvbi be used to do the higher level encoding of data?
Yours Sincerely,
Stefan de Konink
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