A subtitle(ass/srt) toolkit for modifing synchronization, encoding(TBD), etc.
$ npm install -g submod
Adjust subtitles delay by delta(in seconds), and save to a new file with suffix ".submod".
# Decrease subtitle delay by 134.7 seconds:
$ submod sync *S5E01*.ass :-134.7
# Increase subtitle delay by 11.1 seconds:
$ submod sync *S5E01*.srt :+11.1