panni
164 lines
5.1 KiB
Python
164 lines
5.1 KiB
Python
# coding=utf-8
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import logging
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import chardet
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import pysrt
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import pysubs2
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from bs4 import UnicodeDammit
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from subzero.modification import SubtitleModifications
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from subliminal import Subtitle
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logger = logging.getLogger(__name__)
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class PatchedSubtitle(Subtitle):
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storage_path = None
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release_info = None
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matches = None
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hash_verifiable = False
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mods = None
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plex_media_fps = None
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def __init__(self, language, hearing_impaired=False, page_link=None, encoding=None, mods=None):
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super(PatchedSubtitle, self).__init__(language, hearing_impaired=hearing_impaired, page_link=page_link,
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encoding=encoding)
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self.mods = mods
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def __repr__(self):
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return '<%s %r [%s]>' % (
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self.__class__.__name__, self.page_link, self.language)
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def guess_encoding(self):
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"""Guess encoding using the language, falling back on chardet.
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:return: the guessed encoding.
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:rtype: str
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"""
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logger.info('Guessing encoding for language %s', self.language.alpha3)
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encodings = ['utf-8']
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# add language-specific encodings
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if self.language.alpha3 == 'zho':
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encodings.extend(['gb18030', 'big5'])
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elif self.language.alpha3 == 'jpn':
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encodings.append('shift-jis')
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elif self.language.alpha3 == 'tha':
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encodings.append('tis-620')
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# arabian/farsi
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elif self.language.alpha3 in ('ara', 'fas', 'per'):
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encodings.append('windows-1256')
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elif self.language.alpha3 == 'heb':
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encodings.append('windows-1255')
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elif self.language.alpha3 == 'tur':
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encodings.extend(['iso-8859-9', 'windows-1254'])
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# Greek
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elif self.language.alpha3 in ('grc', 'gre', 'ell'):
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encodings.extend(['windows-1253', 'cp1253', 'cp737', 'iso8859_7', 'cp875', 'cp869', 'iso2022_jp_2',
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'mac_greek'])
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# Polish, Czech, Slovak, Hungarian, Slovene, Bosnian, Croatian, Serbian (Latin script),
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# Romanian (before 1993 spelling reform) and Albanian
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elif self.language.alpha3 in ('pol', 'cze', 'ces', 'slk', 'slo', 'slv', 'hun', 'bos', 'hbs', 'hrv', 'rsb',
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'ron', 'rum', 'sqi', 'alb'):
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# Eastern European Group 1
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encodings.append('windows-1250')
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# Bulgarian, Serbian and Macedonian
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elif self.language.alpha3 in ('bul', 'srp', 'mkd', 'mac'):
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# Eastern European Group 2
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encodings.append('windows-1251')
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else:
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# Western European (windows-1252)
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encodings.append('latin-1')
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# try to decode
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logger.debug('Trying encodings %r', encodings)
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for encoding in encodings:
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try:
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self.content.decode(encoding)
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except UnicodeDecodeError:
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pass
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else:
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logger.info('Guessed encoding %s', encoding)
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return encoding
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logger.warning('Could not guess encoding from language')
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# fallback on chardet
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encoding = chardet.detect(self.content)['encoding']
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logger.info('Chardet found encoding %s', encoding)
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if not encoding:
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# fallback on bs4
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logger.info('Falling back to bs4 detection')
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a = UnicodeDammit(self.content)
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Log.Debug("bs4 detected encoding: %s" % a.original_encoding)
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if a.original_encoding:
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return a.original_encoding
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raise ValueError(u"Couldn't guess the proper encoding for %s" % self)
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return encoding
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def is_valid(self):
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"""Check if a :attr:`text` is a valid SubRip format.
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:return: whether or not the subtitle is valid.
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:rtype: bool
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"""
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if not self.text:
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return False
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# valid srt
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try:
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pysrt.from_string(self.text, error_handling=pysrt.ERROR_RAISE)
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except Exception, e:
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logger.error("PySRT-parsing failed: %s, trying pysubs2", e)
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else:
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return True
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# something else, try to return srt
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try:
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logger.debug("Trying parsing with PySubs2")
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subs = pysubs2.SSAFile.from_string(self.text)
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self.content = subs.to_string("srt")
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except:
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logger.exception("Couldn't convert subtitle %s to .srt format", self)
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return False
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return True
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def get_modified_content(self, debug=False):
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"""
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:return: string
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"""
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if not self.mods:
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return self.content
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encoding = self.guess_encoding()
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submods = SubtitleModifications(debug=debug)
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submods.load(content=self.text, language=self.language)
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submods.modify(*self.mods)
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return submods.to_string("srt", encoding=encoding).encode(encoding=encoding)
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def get_modified_text(self, debug=False):
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"""
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:return: unicode
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"""
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content = self.get_modified_content(debug=debug)
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encoding = self.guess_encoding()
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return content.decode(encoding=encoding)
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class ModifiedSubtitle(PatchedSubtitle):
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id = None
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