67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
'''
|
|
Usage:
|
|
|
|
Shift all subtitles 10 seconds forward:
|
|
> subtitle_shift file.srt +10
|
|
|
|
Shift all subtitles 10 seconds backward:
|
|
> subtitle_shift file.srt -10
|
|
|
|
This will produce "file_correct.srt" with the new timestamps.
|
|
'''
|
|
|
|
import os
|
|
import sys
|
|
filename = sys.argv[1]
|
|
offset = float(sys.argv[2])
|
|
f = open(filename, 'r')
|
|
|
|
lines = [l.strip() for l in f.readlines()]
|
|
for (lineindex, line) in enumerate(lines):
|
|
changed = False
|
|
|
|
if '-->' not in line:
|
|
continue
|
|
|
|
words = line.split(' ')
|
|
for (wordindex, word) in enumerate(words):
|
|
word = word.replace('.', ',')
|
|
if not (':' in word and ',' in word):
|
|
continue
|
|
|
|
if not word.replace(':', '').replace(',', '').isdigit():
|
|
continue
|
|
|
|
# 1.) 01:23:45,678 --> 02:34:56,789 | our input
|
|
# 2.) 01:23:45:678 --> 02:34:56:789 | comma to colon
|
|
# 3.) 5025.678 --> 9296.789 | split by colon and sum
|
|
# 4.) 5035.678 --> 9306.789 | add offset
|
|
# 5.) 01:23:55.678 --> 02:35:06.789 | reformat
|
|
# 6.) 01:23:55,678 --> 02:35:06,789 | period to comma
|
|
word = word.replace(',', ':')
|
|
(hours, minutes, seconds, mili) = [int(x) for x in word.split(':')]
|
|
seconds = (3600 * hours) + (60 * minutes) + (seconds) + (mili / 1000)
|
|
|
|
seconds += offset
|
|
(hours, seconds) = divmod(seconds, 3600)
|
|
(minutes, seconds) = divmod(seconds, 60)
|
|
|
|
if hours < 0:
|
|
raise Exception('Negative time')
|
|
|
|
word = '%02d:%02d:%06.3f' % (hours, minutes, seconds)
|
|
word = word.replace('.', ',')
|
|
changed = True
|
|
words[wordindex] = word
|
|
|
|
if changed:
|
|
line = ' '.join(words)
|
|
print(line)
|
|
lines[lineindex] = line
|
|
|
|
lines = '\n'.join(lines)
|
|
(name, extension) = os.path.splitext(filename)
|
|
newname = name + '_correct' + extension
|
|
x = open(newname, 'w')
|
|
x.write(lines)
|
|
x.close()
|