Scripts to convert and format subtitles using SubtitleEdit on windows

format_subs.md

1. Install SubtitleEdit.
2. Install Python 3.
3. Set subtitleedit variable in both sub_format.bat and substationalpha2srt.bat to the path of the executable of SubtitleEdit.

style_subs.py

import sys, os, re

if (len(sys.argv) > 1 and sys.argv[1] == '-en'): LANGUAGE = 'en'
else: LANGUAGE = 'ar'

STYLE = {'ar': 'Adobe Arabic,28', 'en': 'Open Sans Semibold,24'}
SUBS_FOLDER='subs'

for file_name in os.listdir(SUBS_FOLDER):
	if (file_name.endswith('.ass')):
		file_name = f'{SUBS_FOLDER}/{file_name}'
		lines = open(file_name, 'r', encoding='utf-8').read()
		lines = re.sub(r'Style:[^\n]+', f'Style: Default,{STYLE[LANGUAGE]},&H00FFFFFF,&H0300FFFF,&H00000000,&H02000000,-1,0,0,0,100,100,0,0,1,1.8,0,2,10,10,15,1', lines)
		open(file_name, 'w', encoding='utf-8').write(lines)

sub_format.bat

@echo off
set subtitleedit="C:\Program Files\Subtitle Edit\SubtitleEdit.exe"
if not exist srt call substationalpha2srt
set output=subs
if not exist %output% mkdir %output% 
%subtitleedit% /convert srt/*.srt AdvancedSubStationAlpha /outputfolder:"%output%" /overwrite %*
style_subs.py %*

substationalpha2srt.bat

@echo off
set subtitleedit="C:\Program Files\Subtitle Edit\SubtitleEdit.exe"
set output=srt
if not exist %output% mkdir %output% 
%subtitleedit% /convert *.srt subrip /RemoveFormatting /MergeSameTexts /outputfolder:%output% /overwrite
%subtitleedit% /convert *.ass subrip /RemoveFormatting /MergeSameTexts /outputfolder:%output% /overwrite
if exist *.srt (
	xcopy *.srt original-subs\
	del *.srt
)
if exist *.ass (
	xcopy *.ass original-subs\
	del *.ass
)

is it possible for a script that shifts subtitles 1 second backwards or forwards?

is it possible for a script that shifts subtitles 1 second backwards or forwards?

You can do that by using /offset:hh:mm:ss:ms, so if I want to shift subs forward by let's say 1 minute and 3 seconds, I'd do it like this:

subtitleedit /offset:00:01:03:00

To shift backward you just add a - sign to the offset

subtitleedit /offset:-00:00:05:00

It's also supported by the script:

sub_format /offset:00:00:01:00