Translating subtitles as bmp editing?

[PRIMVS]

Hi fellas

I got a bunch of older classic movies which don't have subtitles in my languages at all (can't be found on the net). They all have a single foreign subtitle, so I have to translate them for start.
We know that the subs are shown as .bmp pictures, which are put on the movie itself, so I thought, would it be posssible to edit the actual bmps on the movie, changing the foreign text with my own (instead of ripping the subs, translating, demuxing & remuxing again - since I already have the whole movie in dvd structure ready on my hard disk)?
In your opinion, is that doable and how? Directly editing into the dvd?

thx, P.

[smiller667]

Might be possible in theory, but I am afraid you will have to go the standard route (rip/OCR, translate, mux/author). The most time-consuming step will be the translation, so I wouldn't worry about the autoring steps necessary as they will only take a fraction of the total time required.

If you would like to have a go at editing bmps, simply rip the subs to bmp format and edit with a tool of your choice - the dvdsuptools can mux bmps into a dvd.

In any case, beware ... translating a movie is a long and time-consuming job and might very well spoil the movie for you (at least for the next few months/years).

Steve

[PRIMVS]

Originally posted by smiller667
In any case, beware ... translating a movie is a long and time-consuming job and might very well spoil the movie for you (at least for the next few months/years).

Steve [/B]

I'm not afraid of translating, I've done it before. Besides, these are classic movies and I've seen them already. This is why it's ideal to practise on them.
But I believeI shouldn't rip the bmps off the files, stored on hard disk, cuz that way I'd have to ''refix'' them back on and it wouldn't solve anything
If this wopuld be possible, it could also be interesting then to develop a proggie for some sort of ''on-the-fly'' DVD translating.
I just hope I'm not too optimistic.

[unmei]

i think it is not possible "on the fly" because the subtitle pictures are compressed with a form of run length encoding. If you change the picture they hold, the compressed size will vary and this needs to be taken into consideration in the MPEG stream (the new subtitles would not exactly fit the "holes" in the existing stream ..offsets in the mpeg packet headers would be off etc..). IMO in the best case you end up only ripping to vobsub, decoding to bmp, editing the bitmaps, recompressing to vobsub and reauthoring the MPEG.

[Nyq]

1.rip to srt format
2.translate it
3.covert newly translated srt to sup format using srt2sup
4.then follow some guides stick on this forum
to add the subtitle back to DVD

I think that's it

if you want to preview the subtitle when translating
maybe you can rip the DVD and convert it to divx,
(or you can just rip the vob to harddisk, make a DVD2AVI project,
load it with avisynth script, but I don't know if this works)
then you can see the subtitle with vobsub