[mythtv] Re: Teletext and /or subtitles in myth

[Martin Moeller]

Lørdag den 12. februar 2005 10:48 skrev Martin Barnasconi:
> On Friday 11 February 2005 21:30, Martin Moeller wrote:
[....]
> > I couldn't figure out how to get the list of the teletext pages
> > stored in the recording so I only fixed it so it would work on SAA7134
> > cards and not do buffer overruns. Any further action in this area would
> > be very much appreciated :)
> >
> > I think with the latest landmarks in the OSD a Teletext menu where you
> > pick and choose from the embedded pages would be the best solution, but I
> > haven't got the coding skills to implement that....
> >
> > /Martin.
> >
>
> The current implementation of vbi (for non-PVR cards) only supports CC or
> extracts subtitling from the teletext pages. The way it is currently
> implemented in nuppelvideorecoder Its that is stores the subtiltles only,
> not the vbi stream. Probably the main issue here is the real-time software
> encoding of the nuv stream and in parallel the sliced vbi storage....
>
> This is no issue for the PVR cards, where the IVTV 0.2.0-xxx drivers
> support vbi storage in a private stream in the MPEG data. As soon as vbi
> decoding for IVTV based PVR cards is possible (I do my best), the preferred
> way is to buy a PVR card if you would like have subtitles AND teletext.
>
It may be preferred and I'm even inclined to agree that it is better that way, 
but please do not remove support for software encoded VBI.  It is a feature I 
value highly. It could of course be moved to a different hotkey or something, 
but it should not be removed (if I got the gist of your message wrong, then I 
apologize - I just need to make clear that I use this feature a great deal, 
even if it's not 'full featured').

Also, I know the value of the teletext pages are stored in the stream. I saw 
it during my debugging sessions, but where to look for the values... That I 
didn't figure out.
> Martin

/Martin.