mirror of
https://github.com/moparisthebest/SickRage
synced 2024-11-18 07:15:13 -05:00
219 lines
8.3 KiB
Python
219 lines
8.3 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
# pylint: disable-all
|
|
|
|
import os
|
|
import re
|
|
import sys
|
|
import codecs
|
|
import shutil
|
|
import argparse
|
|
from textwrap import dedent
|
|
|
|
from chardet import detect
|
|
from pysrt import SubRipFile, SubRipTime, VERSION_STRING
|
|
|
|
def underline(string):
|
|
return "\033[4m%s\033[0m" % string
|
|
|
|
|
|
class TimeAwareArgumentParser(argparse.ArgumentParser):
|
|
|
|
RE_TIME_REPRESENTATION = re.compile(r'^\-?(\d+[hms]{0,2}){1,4}$')
|
|
|
|
def parse_args(self, args=None, namespace=None):
|
|
time_index = -1
|
|
for index, arg in enumerate(args):
|
|
match = self.RE_TIME_REPRESENTATION.match(arg)
|
|
if match:
|
|
time_index = index
|
|
break
|
|
|
|
if time_index >= 0:
|
|
args.insert(time_index, '--')
|
|
|
|
return super(TimeAwareArgumentParser, self).parse_args(args, namespace)
|
|
|
|
|
|
class SubRipShifter(object):
|
|
|
|
BACKUP_EXTENSION = '.bak'
|
|
RE_TIME_STRING = re.compile(r'(\d+)([hms]{0,2})')
|
|
UNIT_RATIOS = {
|
|
'ms': 1,
|
|
'': SubRipTime.SECONDS_RATIO,
|
|
's': SubRipTime.SECONDS_RATIO,
|
|
'm': SubRipTime.MINUTES_RATIO,
|
|
'h': SubRipTime.HOURS_RATIO,
|
|
}
|
|
DESCRIPTION = dedent("""\
|
|
Srt subtitle editor
|
|
|
|
It can either shift, split or change the frame rate.
|
|
""")
|
|
TIMESTAMP_HELP = "A timestamp in the form: [-][Hh][Mm]S[s][MSms]"
|
|
SHIFT_EPILOG = dedent("""\
|
|
|
|
Examples:
|
|
1 minute and 12 seconds foreward (in place):
|
|
$ srt -i shift 1m12s movie.srt
|
|
|
|
half a second foreward:
|
|
$ srt shift 500ms movie.srt > othername.srt
|
|
|
|
1 second and half backward:
|
|
$ srt -i shift -1s500ms movie.srt
|
|
|
|
3 seconds backward:
|
|
$ srt -i shift -3 movie.srt
|
|
""")
|
|
RATE_EPILOG = dedent("""\
|
|
|
|
Examples:
|
|
Convert 23.9fps subtitles to 25fps:
|
|
$ srt -i rate 23.9 25 movie.srt
|
|
""")
|
|
LIMITS_HELP = "Each parts duration in the form: [Hh][Mm]S[s][MSms]"
|
|
SPLIT_EPILOG = dedent("""\
|
|
|
|
Examples:
|
|
For a movie in 2 parts with the first part 48 minutes and 18 seconds long:
|
|
$ srt split 48m18s movie.srt
|
|
=> creates movie.1.srt and movie.2.srt
|
|
|
|
For a movie in 3 parts of 20 minutes each:
|
|
$ srt split 20m 20m movie.srt
|
|
=> creates movie.1.srt, movie.2.srt and movie.3.srt
|
|
""")
|
|
FRAME_RATE_HELP = "A frame rate in fps (commonly 23.9 or 25)"
|
|
ENCODING_HELP = dedent("""\
|
|
Change file encoding. Useful for players accepting only latin1 subtitles.
|
|
List of supported encodings: http://docs.python.org/library/codecs.html#standard-encodings
|
|
""")
|
|
BREAK_EPILOG = dedent("""\
|
|
Break lines longer than defined length
|
|
""")
|
|
LENGTH_HELP = "Maximum number of characters per line"
|
|
|
|
def __init__(self):
|
|
self.output_file_path = None
|
|
|
|
def build_parser(self):
|
|
parser = TimeAwareArgumentParser(description=self.DESCRIPTION, formatter_class=argparse.RawTextHelpFormatter)
|
|
parser.add_argument('-i', '--in-place', action='store_true', dest='in_place',
|
|
help="Edit file in-place, saving a backup as file.bak (do not works for the split command)")
|
|
parser.add_argument('-e', '--output-encoding', metavar=underline('encoding'), action='store', dest='output_encoding',
|
|
type=self.parse_encoding, help=self.ENCODING_HELP)
|
|
parser.add_argument('-v', '--version', action='version', version='%%(prog)s %s' % VERSION_STRING)
|
|
subparsers = parser.add_subparsers(title='commands')
|
|
|
|
shift_parser = subparsers.add_parser('shift', help="Shift subtitles by specified time offset", epilog=self.SHIFT_EPILOG, formatter_class=argparse.RawTextHelpFormatter)
|
|
shift_parser.add_argument('time_offset', action='store', metavar=underline('offset'),
|
|
type=self.parse_time, help=self.TIMESTAMP_HELP)
|
|
shift_parser.set_defaults(action=self.shift)
|
|
|
|
rate_parser = subparsers.add_parser('rate', help="Convert subtitles from a frame rate to another", epilog=self.RATE_EPILOG, formatter_class=argparse.RawTextHelpFormatter)
|
|
rate_parser.add_argument('initial', action='store', type=float, help=self.FRAME_RATE_HELP)
|
|
rate_parser.add_argument('final', action='store', type=float, help=self.FRAME_RATE_HELP)
|
|
rate_parser.set_defaults(action=self.rate)
|
|
|
|
split_parser = subparsers.add_parser('split', help="Split a file in multiple parts", epilog=self.SPLIT_EPILOG, formatter_class=argparse.RawTextHelpFormatter)
|
|
split_parser.add_argument('limits', action='store', nargs='+', type=self.parse_time, help=self.LIMITS_HELP)
|
|
split_parser.set_defaults(action=self.split)
|
|
|
|
break_parser = subparsers.add_parser('break', help="Break long lines", epilog=self.BREAK_EPILOG, formatter_class=argparse.RawTextHelpFormatter)
|
|
break_parser.add_argument('length', action='store', type=int, help=self.LENGTH_HELP)
|
|
break_parser.set_defaults(action=self.break_lines)
|
|
|
|
parser.add_argument('file', action='store')
|
|
|
|
return parser
|
|
|
|
def run(self, args):
|
|
self.arguments = self.build_parser().parse_args(args)
|
|
if self.arguments.in_place:
|
|
self.create_backup()
|
|
self.arguments.action()
|
|
|
|
def parse_time(self, time_string):
|
|
negative = time_string.startswith('-')
|
|
if negative:
|
|
time_string = time_string[1:]
|
|
ordinal = sum(int(value) * self.UNIT_RATIOS[unit] for value, unit
|
|
in self.RE_TIME_STRING.findall(time_string))
|
|
return -ordinal if negative else ordinal
|
|
|
|
def parse_encoding(self, encoding_name):
|
|
try:
|
|
codecs.lookup(encoding_name)
|
|
except LookupError as error:
|
|
raise argparse.ArgumentTypeError(error.message)
|
|
return encoding_name
|
|
|
|
def shift(self):
|
|
self.input_file.shift(milliseconds=self.arguments.time_offset)
|
|
self.input_file.write_into(self.output_file)
|
|
|
|
def rate(self):
|
|
ratio = self.arguments.final / self.arguments.initial
|
|
self.input_file.shift(ratio=ratio)
|
|
self.input_file.write_into(self.output_file)
|
|
|
|
def split(self):
|
|
limits = [0] + self.arguments.limits + [self.input_file[-1].end.ordinal + 1]
|
|
base_name, extension = os.path.splitext(self.arguments.file)
|
|
for index, (start, end) in enumerate(zip(limits[:-1], limits[1:])):
|
|
file_name = '%s.%s%s' % (base_name, index + 1, extension)
|
|
part_file = self.input_file.slice(ends_after=start, starts_before=end)
|
|
part_file.shift(milliseconds=-start)
|
|
part_file.clean_indexes()
|
|
part_file.save(path=file_name, encoding=self.output_encoding)
|
|
|
|
def create_backup(self):
|
|
backup_file = self.arguments.file + self.BACKUP_EXTENSION
|
|
if not os.path.exists(backup_file):
|
|
shutil.copy2(self.arguments.file, backup_file)
|
|
self.output_file_path = self.arguments.file
|
|
self.arguments.file = backup_file
|
|
|
|
def break_lines(self):
|
|
split_re = re.compile(r'(.{,%i})(?:\s+|$)' % self.arguments.length)
|
|
for item in self.input_file:
|
|
item.text = '\n'.join(split_re.split(item.text)[1::2])
|
|
self.input_file.write_into(self.output_file)
|
|
|
|
@property
|
|
def output_encoding(self):
|
|
return self.arguments.output_encoding or self.input_file.encoding
|
|
|
|
@property
|
|
def input_file(self):
|
|
if not hasattr(self, '_source_file'):
|
|
with open(self.arguments.file, 'rb') as f:
|
|
content = f.read()
|
|
encoding = detect(content).get('encoding')
|
|
encoding = self.normalize_encoding(encoding)
|
|
|
|
self._source_file = SubRipFile.open(self.arguments.file,
|
|
encoding=encoding, error_handling=SubRipFile.ERROR_LOG)
|
|
return self._source_file
|
|
|
|
@property
|
|
def output_file(self):
|
|
if not hasattr(self, '_output_file'):
|
|
if self.output_file_path:
|
|
self._output_file = codecs.open(self.output_file_path, 'w+', encoding=self.output_encoding)
|
|
else:
|
|
self._output_file = sys.stdout
|
|
return self._output_file
|
|
|
|
def normalize_encoding(self, encoding):
|
|
return encoding.lower().replace('-', '_')
|
|
|
|
|
|
def main():
|
|
SubRipShifter().run(sys.argv[1:])
|
|
|
|
if __name__ == '__main__':
|
|
main()
|