Subtitle shifter tool
usage: subshifter.py [-h] [-f DELTA] [-b DELTA] [-o OFFSET] file_srt
Shift subtitle timestamps forward/backward.
positional arguments:
file_srt path to the subtitles file
options:
-h, --help show this help message and exit
-f DELTA, --forward DELTA
shift DELTA ms forward
-b DELTA, --backward DELTA
shift DELTA ms backward
-o OFFSET, --offset OFFSET
offset [[Hours:]Minutes:]Seconds - subtitles will be
shifted starting from this instant
Example of use: python3 subshifter.py -f 14500 -o 1:10:37 /path/to/subtitles.srt