Video files (avi, mpeg etc) are sometimes accompanied with subtitles, which are currently very popular as text files. The command line tool 'subs' and its perl backend Subtitles.pm provide means for simple loading, re-timing, converting, and storing these subtitle files. The supported formats are .srt, .sub, .smi, and .idx. An example of a GUI subtitle player is included.
Warning: -i is a great feature, but use it with certain caution.
If subtitles are shown too early ( 5 seconds):
subs -i -b 5 file.sub
If subtitles are for a movie in 25 fps, need to be for 24 ( actual for frame-based formats only ).
subs -i -a 24/25 file.sub
If subtitles start 1 second too early, but in 1 hour are late in 7 seconds:
subs -i -p 0 -1 -p 1:00:00 +7 file.sub
Join two parts with 15-second gap
subs -o joined.sub -j 15 part1.sub part2.sub
Split in two after 50 minutes and half a second ( makes basename.1.sub and basename.2.sub ).
subs -o basename.sub -s 50:00.5 toobig.sub
Remove closed caption-specific comments such as '[Sneezing]' or '[Music playing]'
subs -e 's/[\s-]\[.\]\s\n//gs' sub.sub
Separate overlapped lines
subs -O subs.sub
Zip two subtitles together -- read time information from one, text from another
subs -z time.sub text.sub
To install this module type the following:
perl Makefile.PL
make
make test
make install
COPYRIGHT AND LICENCE
Copyright (C) 2004 Dmitry Karasik
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.