[mythtv] Closed Captioning & Teletext/Videotext

Erik Arendse erik_nospam.arendse at bigfoot.com
Wed Jan 22 09:45:26 EST 2003

At 20-1-03 17:01, Robert Kulagowski wrote:
>As long as we're discussing modifying the file format to add
>teletext, it would be nice if the header had a copy of the show
>information in it as well.  This will help in situations where the
>database is lost, and in combination with the perl script that was
>recently posted would allow the database to be rebuilt without
>needing to re-type all of the program titles (which are lost when the
>database gets killed)

Subtitle information (I presume you meant subtitling when you wrote 
teletext) is kept in the recorded file itself, it is just another 
timerelated frame like the audio and video.

I have European teletext subtitling working at the moment, still some 
cleaning up to do and preparing for US CC support. New frametypes in 
recorded files are TT (Text-Teletext) and TC (Text-Closed acaption). Text 
is displayed with font you want, on the screen locations and in the color 
dictated by the teletext page, but without the black backgroundbox.

Will take few or more days untill I have all small issues ironed out and 
submitted the patch to Isaac.


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