Are DVB subtitles supposed to work?

[frukt]

I use VLC on Windows to watch IPTV provided by my ISP (multicasted MPEG2 stream). Some channels/programs contain DVB subtitle streams (dvbs), but when I select them from Video->Subtitles, nothing ever happens. I know that sadly teletext subtitles don't work yet, but I gather that DVBS should work - what might be the problem?

[roglan]

Lets face it. It will take a loong time. I've been waiting and asking for Videolan Teletext decoding for a year...

In late July this year the DJ said:

i have DVB-IP Systems B Teletext decoding working now

We have not heared any news since then.
viewtopic.php?t=5641&highlight=teletext

If you look at VLC track, Ticket 77 (Closed captions / Teletext support).
It has a very low priority, and is under Features Paradize. This means it does not have a set release, not for version 0.8.6 or 0.9.

I think the DJ tried to make it work for 0.8.6, but ran into problems.
I do not know if he gave up or just postponed it until later versions.

[The DJ]

Those problems are called "life" which often interferes with things called "coding for free".

Indeed DVB-S indeed should work. Can you dump a part of that stream to your disc (Use the dump to file option, because the save to file option might not save the subs).

If you then upload to ftp://ftp.videolan.org/incoming
we will see if we can find why it will not work.

[cedricb]

Hi,
And what about the opposite : VLC output stream with subtitles encoded as teletext.

Would be really neat to be able to send content from a DVD, without transcoding video, to my TV video player (ADSL box)....
(I only need subtitles and audio transcoding in this case)

Would this feature be as difficult to add to VLC as teletex decoding ?

And as for now subtitles have to be overlayed on video... is it possible to optimize the perfomance of the mpeg2 decoding - reencoding in same format but with subtitles overlayed, given that only subtitles have to be added in the operation (and most of the video is left untouched) ?

[DJ]

I believe it's only while transcoding to MPEG 2 and using the MPEG TS container.