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View Full Version : How to slow down vobsubs from PAL to FILM?


Marsu42
24th May 2006, 22:22
I am doing some backups of PAL DVDs which were accelerated from their original 23,97... fps. Using AviSynth & BeLight I managed to slow down the video and audio tracks. By exporting the ocr'ed subs to 25fps MicroDVD format and re-importing them with 23.97... fps the text subtitles are in sync at last.

However, I don't know how to slow down the ripped vobsubs (sub+idx) - I'd like to mux them in the final mkv as well. It seems the timecode is in the idx file, but I can't think of any way/program to automatically adjust all timestamps. It would be nice if anyone could give me a hint :-)

Marsu42
25th May 2006, 21:18
ok, problem solved - I wrote two batch files converting .idx subtitles (as generated by vsrip.exe) and .xml chapters (as generated by chaptergrabber.exe) from pal to film framerate. If anyone is interested, I can post them here - they are jpsoft 4nt .btm scripts.

Dark-Cracker
26th May 2006, 11:28
yep post your solution this could always help someone who one day will encoter this matter.

have a good day.

Bye.

Marsu42
26th May 2006, 12:17
ok, here are the batch files - just made another one to convert srt from 25fps to 23,976. Just run it unter 4NT / Take Command, they take the input file as the only option and rename the old one to e.g. vobsub.idx.pal. All timecodes are multipled w/ 1,042709376. Not exactly pretty (I'm no programmer), but it works.

manono
29th May 2006, 11:49
The VobSub Sub File Cutter, which comes with the VobSub package, can already convert IDX/SUB file framerates quite easily.