A simple script that shifts the timecode of subtitle file.
To open help menu, type:
python ./srtass.py --help
To shift subtitles forward, type an amount of time, for example:
python ./srtass.py filename.srt -s 5
To shift subtitles backward, type an amount of time in negative, for example:
python ./srtass.py filename.srt -s -5
To shift multiple files, type:
python ./srtass.py filename1.srt filename2.ass arguments
or
python ./srtass.py folder arguments