The VideoLAN Forums

Hi,
I have this error when I try to activate the teletext stream in a MPEG TS file.
Is a decoder for teletext available?

Not yet

Can you confirm that Teletext is part of an MPEG ES stream?
Do you know if VLC will support this? If so, please tell me when (your best guess:-) Do you know if this is an Todo item?
This will be an very important VLC feature, at least for the
hearing impeared, since most subtitles sent over IPTV
are subtitled with Teletext. It will not be necessary to decode other things in teletext other than the subtitles. Also my guess is that you don't even have to consider timing, since this is incorporated in the signal (MPEG ES).

It's on a VERY large todo list yes.

Should teletext now work with vlc? I updated vlc and I still get same
main error: no suitable decoder module for fourcc `telx'.
VLC probably does not support this sound or video format.

VLC doesn't support teletext yet ... patches are welcome

Yes, the teletext decoder would be very very good thing, since in nordic countries subtitles are used in almost all tv programs and movies (which is a much better thing than dubbing, like in most other parts of europe

So, you who can write code for plugins, this should have high priority!

Pay me !!!

I like VLC very much and thanks all the people that worked and still work hard to make it and to improve it day after day!
Like many people I am also missing teletex subtitles... this would make my (and think many people's) day!
Thanks again and keep going (without forgetting to include this feature ...)

Teletext would indeed be a great add-on!

indeed

What are the recent developments concerning telx subtitles? Is it implemented in SVN? In that case I'd be willing to go through the hassle of compiling VLC myself (on windows, bleh), teletext subtitle support would be a very welcome feature indeed.

i have DVB-IP Systems B Teletext decoding working now. Next step is to add the rendering and interactivity, but i'm still pondering how to implement that. There are some technical problems here in that TT is a "on demand" service instead of a "on arrival" service.

But in the basics it's working.

i have DVB-IP Systems B Teletext decoding working now. Next step is to add the rendering and interactivity, but i'm still pondering how to implement that. There are some technical problems here in that TT is a "on demand" service instead of a "on arrival" service.

But in the basics it's working.

Hi,
why not borrowing code or concept from the AleVT, or the D-Box satellite receiver project ?
Both offer thousands of text pages buffered, and AleVT ia capable of using the mouse click to follow page numbers. I expected the difficulty in getting the data out of the transport stream of a certain program.

Best Regards

i use zvbi, which is a great concept.

The problem with teletext and VLC is that it's not a concept that really fits well into VLC design. It basically a "cached" On Demand service, whereas VLC is very much dedicated to rendering when stuff arrives.

It's not problematic on the teletext level. It's problematic on the VLC level

i use zvbi, which is a great concept.

Cool.
Are you implementing a kind of zvbi proxy, where patched applications can connect to?

Teletext/Videotext might be a window of its own with its own GUI, but in fullscreen mode it is a subtitle thing.
There is closed caption for US. Is CC in the states part of the TELX, or a seperate thing? Does anybody know?
A CC decoder might be included in tvtime.


Best Regards
viewegu