Which subtitle format is well suited for converting Teletext ? [Archive]

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boulder2

9th August 2007, 08:29

I 've written an analogue PAL Teletext subtitle extractor for DVR-MS.
At this point in time it converts everything to SRT, however by doing so 2 things get lost :

* the original position on screen the subtitle was at
* colours.

Teletext gives each speaker his or her own colour for subtitles, and sometimes you even get 2 colours in one row.
A subtitle might look like this :

Who told you to do that? Mark.
(Music goes crescendo)

So, which subtitle format has [good] options for representing that ?
SSA, SAMI, ... ?

You can find the current program (only useful for people living in PAL countries) at http://www.extrabuttons.net

nullstuff

9th August 2007, 12:47

boulder2

9th August 2007, 16:24

...I guess only with VobSub format (.IDX/.SUB) that will be possible. try SubtitleCreator (http://sourceforge.net/projects/subtitlecreator/) (Tools->Manipulate SUP or VobSub). anyway, subs won't be in plain text.

-- nullstuff

Looks like a nice product, however, isn't there some subtitle format that has support for different colours, and which I can take as a source for a subtitle creator like product ?
I mean, I convert to SRT, but I could convert to SSA, I guess.
Would that not give me more options ?

mitsubishi

9th August 2007, 16:28

boulder2

9th August 2007, 16:30

Hey boulder, this is something I was planning on having a go at myself in the future since projectX sometimes misses out lines. So I'm very interested.

Yeah SSA/ASS is the way to go I'm sure, that's what I always let pX output for me.

I'll take a look, but I have .ts, not .dvr-ms
I think that ProjectX only handles Teletext that came from digital sources.
I capture from analogue TV with Mediacenter, which turns it into a DVR-MS file.
Could I have done that with ProjectX as well ?

mitsubishi

9th August 2007, 16:42

Ah I forgot there even was such a thing as analogue any more (although my PC can do that as well). ProjectX might be able to do something since the dvr-ms already has them converted to digital, don't know, although there might be some help in the sourcecode.

SSA specs are here if you need them: http://www.perlfu.co.uk/projects/asa/ass-specs.doc

boulder2

17th August 2007, 11:17

Hey boulder, this is something I was planning on having a go at myself in the future since projectX sometimes misses out lines. So I'm very interested.

Yeah SSA/ASS is the way to go I'm sure, that's what I always let pX output for me.

I'll take a look, but I have .ts, not .dvr-ms
Yesterday I discovered that SRT unofficially supports colours (and positions, but that didn't seem to work).
So I guess I will stick with the SRT format as it is the easiest to implement.
That means colour support in a future version.
:cool: