13.9. Extracting DVD subtitles to VOBsub file13.9. Extracting DVD subtitles to VOBsub filePrev Chapter 13. Basic usage of MEncoder Next13.9. Extracting DVD subtitles to VOBsub file
MEncoder is capable of extracting subtitles from
a DVD into VOBsub formatted files. They consist of a pair of files ending in
.idx and .sub and are usually
packaged in a single .rar archive.
MPlayer can play these with the
-vobsub and -vobsubid options.

You specify the basename (i.e without the .idx or
.sub extension) of the output files with
-vobsubout and the index for this subtitle in the
resulting files with -vobsuboutindex.

If the input is not from a DVD you should use -ifo to
indicate the .ifo file needed to construct the
resulting .idx file.

If the input is not from a DVD and you do not have the
.ifo file you will need to use the
-vobsubid option to let it know what language id to put in
the .idx file.

Each run will append the running subtitle if the .idx
and .sub files already exist. So you should remove any
before starting.
Example 13.5. Copying two subtitles from a DVD while doing two pass encoding
rm subtitles.idx subtitles.sub
mencoder dvd://1 -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 \
-vobsubout subtitles -vobsuboutindex 0 -sid 2
mencoder dvd://1 -oac copy -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell:vpass=2 \
-vobsubout subtitles -vobsuboutindex 1 -sid 5Example 13.6. Copying a French subtitle from an MPEG file
rm subtitles.idx subtitles.sub
mencoder movie.mpg -ifo movie.ifo -vobsubout subtitles -vobsuboutindex 0 \
-vobsuboutid fr -sid 1 -nosound -ovc copy
Prev Up Next13.8. Encoding from multiple input image files (JPEG, PNG, TGA, etc.) Home 13.10. Preserving aspect ratio