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main.py
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/
main.py
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#!/usr/bin/env python
# author: Iraj Jelodari
import datetime
import codecs
import re
RED = '#FF003B'
BLUE = '#00ADFF'
GREEN = '#B4FF00'
WHITE = '#FFFFFF'
YELLOW = '#FFEB00'
TIME_PATTERN = r'\d{1,2}:\d{1,2}:\d{1,2},\d{1,5} --> \d{1,2}:\d{1,2}:\d{1,2},\d{1,5}\r\n'
class Merger():
"""
SRT Merger allows you to merge subtitle files, no matter what language
are the subtitles encoded in. The result of this merge will be a new subtitle
file which will display subtitles from each merged file.
"""
def __init__(self, output_path=".", output_name='subtitle_name.srt', output_encoding='utf-8'):
self.timestamps = []
self.subtitles = []
self.lines = []
self.output_path = output_path
self.output_name = output_name
self.output_encoding = output_encoding
def _insert_bom(self, content, encoding):
encoding = encoding.replace('-', '')\
.replace('_', '')\
.replace(' ', '')\
.upper()
if encoding in ['UTF64LE', 'UTF16', 'UTF16LE']:
return codecs.BOM + content
if encoding in ['UTF8']:
return codecs.BOM_UTF8 + content
if encoding in ['UTF32LE']:
return codecs.BOM_UTF32_LE + content
if encoding in ['UTF64BE']:
return codecs.BOM_UTF64_BE + content
if encoding in ['UTF16BE']:
return codecs.BOM_UTF32_BE + content
if encoding in ['UTF32BE']:
return codecs.BOM_UTF32_BE + content
if encoding in ['UTF32']:
return codecs.BOM_UTF32 + content
return content
def _set_subtitle_color(self, subtitle, color):
"""
Set a color for subtitle
"""
return '<font color="{!s}">{!s}</font>'.format(
color, subtitle) if color else subtitle
def _put_subtitle_top(self, subtitle):
"""
Put the subtitle at the top of the screen
"""
return '{\\an8}' + subtitle
def _split_dialogs(self, dialogs, subtitle, color=None, top=False):
for dialog in dialogs:
if dialog.startswith('\r\n'):
dialog = dialog.replace('\r\n', '', 1)
if dialog.startswith('\n'):
dialog = dialog[1:]
if dialog == '' or dialog == '\n' or dialog.rstrip().lstrip() == '':
continue
try:
if dialog.startswith('\r\n'):
dialog = dialog[2:]
time = dialog.split('\n', 2)[1].split('-->')[0].split(',')[0]
except Exception as e:
continue
timestamp = datetime.datetime.strptime(
time, '%H:%M:%S').timestamp()
text_and_time = dialog.split('\n', 1)[1]
texts = text_and_time.split('\n')[1:]
time = text_and_time.split('\n')[0]
text = ""
for t in texts:
text += t + '\n'
if text == '' or text == '\n':
continue
text = self._set_subtitle_color(text, color)
if top is True:
text = self._put_subtitle_top(text)
text_and_time = '%s\n%s\n' % (time, text)
# Previuos dialog for same timestamp
prev_dialog_for_same_timestamp = subtitle['dialogs'][timestamp] = subtitle['dialogs'].get(
timestamp, '')
prev_dialog_without_timestamp = re.sub(
TIME_PATTERN, '', prev_dialog_for_same_timestamp)
if re.findall(TIME_PATTERN, text_and_time):
time = re.findall(TIME_PATTERN, text_and_time)[0]
subtitle['dialogs'][timestamp] = text_and_time + \
prev_dialog_without_timestamp
self.timestamps.append(timestamp)
def _encode(self, text):
codec = self.output_encoding
try:
return bytes(text, encoding=codec)
except Exception as e:
print('Problem in "%s" to encoing by %s. \nError: %s' %
(repr(text), codec, e))
return b'An error has been occured in encoing by specifed `output_encoding`'
def add(self, subtitle_address, codec="utf-8", color=WHITE, top=False):
subtitle = {
'address': subtitle_address,
'codec': codec,
'color': color,
'dialogs': {}
}
with open(subtitle_address, 'r') as file:
data = file.buffer.read().decode(codec)
dialogs = re.split('\r\n\r|\n\n', data)
subtitle['data'] = data
subtitle['raw_dialogs'] = dialogs
self._split_dialogs(dialogs, subtitle, color, top)
self.subtitles.append(subtitle)
def get_output_path(self):
if self.output_path.endswith('/'):
return self.output_path + self.output_name
return self.output_path + '/' + self.output_name
def merge(self):
self.lines = []
self.timestamps = list(set(self.timestamps))
self.timestamps.sort()
count = 1
for t in self.timestamps:
for sub in self.subtitles:
if t in sub['dialogs'].keys():
line = self._encode(sub['dialogs'][t].replace('\n\n', ''))
if count == 1:
byteOfCount = self._insert_bom(
bytes(str(count), encoding=self.output_encoding),
self.output_encoding
)
else:
byteOfCount = '\n'.encode(
self.output_encoding) + bytes(str(count), encoding=self.output_encoding)
if sub['dialogs'][t].endswith('\n') != True:
sub['dialogs'][t] = sub['dialogs'][t] + '\n'
dialog = byteOfCount + \
'\n'.encode(self.output_encoding) + line
self.lines.append(dialog)
count += 1
if self.lines[-1].endswith(b'\x00\n\x00'):
self.lines[-1] = self.lines[-1][:-3] + b'\x00'
if self.lines[-1].endswith(b'\n'):
self.lines[-1] = self.lines[-1][:-1] + b''
with open(self.get_output_path(), 'w', encoding=self.output_encoding) as output:
output.buffer.writelines(self.lines)
print("'%s'" % (output.name), 'created successfully.')
# How to use?
#
# m = Merger(output_name="new.srt")
# m.add('./test_srt/en.srt')
# m.add('./test_srt/fa.srt', color="yellow", codec="cp1256", top=True)
# m.merge()