470 lines
19 KiB
Python
470 lines
19 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import, division, unicode_literals
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from logging import getLogger
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import re
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from os import path
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import xml.etree.ElementTree as etree
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from . import app
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from . import path_ops
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from . import variables as v
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from .exceptions import SubtitleError
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LOG = getLogger('PLEX.subtitles')
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# See https://kodi.wiki/view/Subtitles
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SUBTITLE_LANGUAGE = re.compile(r'''(?i)[\. -]*(.*?)([\. -]forced)?$''')
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# Plex support for external subtitles: srt, smi, ssa, aas, vtt
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# https://support.plex.tv/articles/200471133-adding-local-subtitles-to-your-media/
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# Which subtitles files are picked up by Kodi, what extensions do they need?
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KODI_SUBTITLE_EXTENSIONS = ('srt', 'ssa', 'ass', 'usf', 'cdg', 'idx', 'sub',
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'utf', 'aqt', 'jss', 'psb', 'rt', 'smi', 'txt',
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'smil', 'stl', 'dks', 'pjs', 'mpl2', 'mks')
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# Official language designations. Tuples consist of
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# (ISO language name, ISO 639-1, ISO 639-2, ISO 639-2/B)
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# source: https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
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LANGUAGE_ISO_CODES = (
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('abkhazian', 'ab', 'abk', 'abk'),
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('afar', 'aa', 'aar', 'aar'),
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('afrikaans', 'af', 'afr', 'afr'),
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('akan', 'ak', 'aka', 'aka'),
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('albanian', 'sq', 'sqi', 'alb'),
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('amharic', 'am', 'amh', 'amh'),
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('arabic', 'ar', 'ara', 'ara'),
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('aragonese', 'an', 'arg', 'arg'),
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('armenian', 'hy', 'hye', 'arm'),
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('assamese', 'as', 'asm', 'asm'),
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('avaric', 'av', 'ava', 'ava'),
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('avestan', 'ae', 'ave', 'ave'),
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('aymara', 'ay', 'aym', 'aym'),
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('azerbaijani', 'az', 'aze', 'aze'),
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('bambara', 'bm', 'bam', 'bam'),
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('bashkir', 'ba', 'bak', 'bak'),
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('basque', 'eu', 'eus', 'baq'),
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('belarusian', 'be', 'bel', 'bel'),
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('bengali', 'bn', 'ben', 'ben'),
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('bislama', 'bi', 'bis', 'bis'),
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('bosnian', 'bs', 'bos', 'bos'),
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('breton', 'br', 'bre', 'bre'),
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('bulgarian', 'bg', 'bul', 'bul'),
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('burmese', 'my', 'mya', 'bur'),
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('catalan', 'ca', 'cat', 'cat'),
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('chamorro', 'ch', 'cha', 'cha'),
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('chechen', 'ce', 'che', 'che'),
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('chichewa', 'ny', 'nya', 'nya'),
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('chinese', 'zh', 'zho', 'chi'),
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('chuvash', 'cv', 'chv', 'chv'),
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('cornish', 'kw', 'cor', 'cor'),
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('corsican', 'co', 'cos', 'cos'),
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('cree', 'cr', 'cre', 'cre'),
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('croatian', 'hr', 'hrv', 'hrv'),
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('czech', 'cs', 'ces', 'cze'),
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('danish', 'da', 'dan', 'dan'),
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('divehi', 'dv', 'div', 'div'),
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('dutch', 'nl', 'nld', 'dut'),
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('dzongkha', 'dz', 'dzo', 'dzo'),
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('english', 'en', 'eng', 'eng'),
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('esperanto', 'eo', 'epo', 'epo'),
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('estonian', 'et', 'est', 'est'),
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('ewe', 'ee', 'ewe', 'ewe'),
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('faroese', 'fo', 'fao', 'fao'),
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('fijian', 'fj', 'fij', 'fij'),
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('finnish', 'fi', 'fin', 'fin'),
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('french', 'fr', 'fra', 'fre'),
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('fulah', 'ff', 'ful', 'ful'),
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('galician', 'gl', 'glg', 'glg'),
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('georgian', 'ka', 'kat', 'geo'),
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('german', 'de', 'deu', 'ger'),
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('greek', 'el', 'ell', 'gre'),
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('guarani', 'gn', 'grn', 'grn'),
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('gujarati', 'gu', 'guj', 'guj'),
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('haitian', 'ht', 'hat', 'hat'),
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('hausa', 'ha', 'hau', 'hau'),
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('hebrew', 'he', 'heb', 'heb'),
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('herero', 'hz', 'her', 'her'),
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('hindi', 'hi', 'hin', 'hin'),
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('hiri motu', 'ho', 'hmo', 'hmo'),
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('hungarian', 'hu', 'hun', 'hun'),
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('interlingua', 'ia', 'ina', 'ina'),
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('indonesian', 'id', 'ind', 'ind'),
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('interlingue', 'ie', 'ile', 'ile'),
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('irish', 'ga', 'gle', 'gle'),
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('igbo', 'ig', 'ibo', 'ibo'),
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('inupiaq', 'ik', 'ipk', 'ipk'),
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('ido', 'io', 'ido', 'ido'),
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('icelandic', 'is', 'isl', 'ice'),
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('italian', 'it', 'ita', 'ita'),
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('inuktitut', 'iu', 'iku', 'iku'),
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('japanese', 'ja', 'jpn', 'jpn'),
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('javanese', 'jv', 'jav', 'jav'),
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('kalaallisut', 'kl', 'kal', 'kal'),
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('kannada', 'kn', 'kan', 'kan'),
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('kanuri', 'kr', 'kau', 'kau'),
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('kashmiri', 'ks', 'kas', 'kas'),
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('kazakh', 'kk', 'kaz', 'kaz'),
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('central khmer', 'km', 'khm', 'khm'),
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('kikuyu', 'ki', 'kik', 'kik'),
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('kinyarwanda', 'rw', 'kin', 'kin'),
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('kirghiz', 'ky', 'kir', 'kir'),
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('komi', 'kv', 'kom', 'kom'),
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('kongo', 'kg', 'kon', 'kon'),
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('korean', 'ko', 'kor', 'kor'),
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('kurdish', 'ku', 'kur', 'kur'),
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('kuanyama', 'kj', 'kua', 'kua'),
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('latin', 'la', 'lat', 'lat'),
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('luxembourgish', 'lb', 'ltz', 'ltz'),
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('ganda', 'lg', 'lug', 'lug'),
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('limburgan', 'li', 'lim', 'lim'),
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('lingala', 'ln', 'lin', 'lin'),
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('lao', 'lo', 'lao', 'lao'),
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('lithuanian', 'lt', 'lit', 'lit'),
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('luba-katanga', 'lu', 'lub', 'lub'),
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('latvian', 'lv', 'lav', 'lav'),
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('manx', 'gv', 'glv', 'glv'),
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('macedonian', 'mk', 'mkd', 'mac'),
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('malagasy', 'mg', 'mlg', 'mlg'),
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('malay', 'ms', 'msa', 'may'),
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('malayalam', 'ml', 'mal', 'mal'),
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('maltese', 'mt', 'mlt', 'mlt'),
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('maori', 'mi', 'mri', 'mao'),
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('marathi', 'mr', 'mar', 'mar'),
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('marshallese', 'mh', 'mah', 'mah'),
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('mongolian', 'mn', 'mon', 'mon'),
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('nauru', 'na', 'nau', 'nau'),
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('navajo', 'nv', 'nav', 'nav'),
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('north ndebele', 'nd', 'nde', 'nde'),
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('nepali', 'ne', 'nep', 'nep'),
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('ndonga', 'ng', 'ndo', 'ndo'),
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('norwegian bokmål', 'nb', 'nob', 'nob'),
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('norwegian nynorsk', 'nn', 'nno', 'nno'),
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('norwegian', 'no', 'nor', 'nor'),
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('sichuan yi', 'ii', 'iii', 'iii'),
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('south ndebele', 'nr', 'nbl', 'nbl'),
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('occitan', 'oc', 'oci', 'oci'),
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('ojibwa', 'oj', 'oji', 'oji'),
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('church slavic', 'cu', 'chu', 'chu'),
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('oromo', 'om', 'orm', 'orm'),
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('oriya', 'or', 'ori', 'ori'),
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('ossetian', 'os', 'oss', 'oss'),
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('punjabi', 'pa', 'pan', 'pan'),
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('pali', 'pi', 'pli', 'pli'),
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('persian', 'fa', 'fas', 'per'),
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('polish', 'pl', 'pol', 'pol'),
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('pashto', 'ps', 'pus', 'pus'),
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('portuguese', 'pt', 'por', 'por'),
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('quechua', 'qu', 'que', 'que'),
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('romansh', 'rm', 'roh', 'roh'),
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('rundi', 'rn', 'run', 'run'),
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('romanian', 'ro', 'ron', 'rum'),
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('russian', 'ru', 'rus', 'rus'),
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('sanskrit', 'sa', 'san', 'san'),
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('sardinian', 'sc', 'srd', 'srd'),
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('sindhi', 'sd', 'snd', 'snd'),
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('northern sami', 'se', 'sme', 'sme'),
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('samoan', 'sm', 'smo', 'smo'),
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('sango', 'sg', 'sag', 'sag'),
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('serbian', 'sr', 'srp', 'srp'),
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('gaelic', 'gd', 'gla', 'gla'),
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('shona', 'sn', 'sna', 'sna'),
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('sinhala', 'si', 'sin', 'sin'),
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('slovak', 'sk', 'slk', 'slo'),
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('slovenian', 'sl', 'slv', 'slv'),
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('somali', 'so', 'som', 'som'),
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('southern sotho', 'st', 'sot', 'sot'),
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('spanish', 'es', 'spa', 'spa'),
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('sundanese', 'su', 'sun', 'sun'),
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('swahili', 'sw', 'swa', 'swa'),
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('swati', 'ss', 'ssw', 'ssw'),
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('swedish', 'sv', 'swe', 'swe'),
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('tamil', 'ta', 'tam', 'tam'),
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('telugu', 'te', 'tel', 'tel'),
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('tajik', 'tg', 'tgk', 'tgk'),
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('thai', 'th', 'tha', 'tha'),
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('tigrinya', 'ti', 'tir', 'tir'),
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('tibetan', 'bo', 'bod', 'tib'),
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('turkmen', 'tk', 'tuk', 'tuk'),
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('tagalog', 'tl', 'tgl', 'tgl'),
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('tswana', 'tn', 'tsn', 'tsn'),
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('tonga', 'to', 'ton', 'ton'),
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('turkish', 'tr', 'tur', 'tur'),
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('tsonga', 'ts', 'tso', 'tso'),
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('tatar', 'tt', 'tat', 'tat'),
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('twi', 'tw', 'twi', 'twi'),
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('tahitian', 'ty', 'tah', 'tah'),
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('uighur', 'ug', 'uig', 'uig'),
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('ukrainian', 'uk', 'ukr', 'ukr'),
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('urdu', 'ur', 'urd', 'urd'),
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('uzbek', 'uz', 'uzb', 'uzb'),
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('venda', 've', 'ven', 'ven'),
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('vietnamese', 'vi', 'vie', 'vie'),
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('volapük', 'vo', 'vol', 'vol'),
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('walloon', 'wa', 'wln', 'wln'),
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('welsh', 'cy', 'cym', 'wel'),
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('wolof', 'wo', 'wol', 'wol'),
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('western frisian', 'fy', 'fry', 'fry'),
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('xhosa', 'xh', 'xho', 'xho'),
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('yiddish', 'yi', 'yid', 'yid'),
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('yoruba', 'yo', 'yor', 'yor'),
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('zhuang', 'za', 'zha', 'zha'),
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('zulu', 'zu', 'zul', 'zul'),
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)
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def accessible_plex_subtitles(playmethod, playing_file, xml_streams):
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if not playmethod == v.PLAYBACK_METHOD_DIRECT_PATH:
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# We can access all subtitles because we're downloading additional
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# external ones into the Kodi PKC add-on directory
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streams = []
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# Kodi ennumerates EXTERNAL subtitles first, then internal ones
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for stream in xml_streams:
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if stream.get('streamType') == '3' and 'key' in stream.attrib:
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streams.append(stream)
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for stream in xml_streams:
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if stream.get('streamType') == '3' and 'key' not in stream.attrib:
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streams.append(stream)
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if streams:
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LOG.debug('Working with the following Plex subtitle streams:')
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log_plex_streams(streams)
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return streams
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kodi_subs = kodi_subs_from_player()
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plex_streams_int, plex_streams_ext = accessible_plex_sub_streams(xml_streams)
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# Kodi appends internal streams at the end of its list
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kodi_subs_ext = kodi_subs[:len(kodi_subs) - len(plex_streams_int)]
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LOG.debug('Kodi list of external subs: %s', kodi_subs_ext)
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LOG.debug('Kodi has %s external subs, Plex %s, trying to match them',
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len(kodi_subs_ext), len(plex_streams_ext))
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dirname, basename = path.split(playing_file)
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filename, _ = path.splitext(basename)
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try:
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kodi_subs_file = kodi_external_subs(dirname, filename, kodi_subs_ext)
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reordered_plex_streams_ext = reorder_plex_streams(plex_streams_ext,
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kodi_subs_file)
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except SubtitleError:
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# Add dummy subtitles so we won't match against Plex subtitles that
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# are in an incorrect order - keeps Kodi order of subs intact
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reordered_plex_streams_ext = [DummySub()
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for _ in range(len(kodi_subs_ext))]
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reordered_plex_streams_ext.extend(plex_streams_int)
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return reordered_plex_streams_ext
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def reorder_plex_streams(plex_streams_ext, kodi_subs_file):
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"""
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Returns the Plex streams in a "best-guess" order as indicated by the
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Kodi external subtitles kodi_subs_file
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"""
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order = [None for i in range(len(kodi_subs_file))]
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# Pick subtitles with known language, extension and "forced" True first
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for i, kodi_sub in enumerate(kodi_subs_file):
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if not kodi_sub['iso'] or not kodi_sub['forced']:
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continue
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for plex_stream in plex_streams_ext:
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if not plex_stream.get('forced'):
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continue
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elif not kodi_sub['iso'][1] == plex_stream.get('languageTag'):
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continue
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elif not kodi_sub['codec'] == plex_stream.get('codec').lower():
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continue
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# Pick the first matching result - even though it's a best guess
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order[i] = plex_stream
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plex_streams_ext.remove(plex_stream)
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break
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# Pick non-forced
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for i, kodi_sub in enumerate(kodi_subs_file):
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if order[i] is not None or not kodi_sub['iso']:
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continue
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for plex_stream in plex_streams_ext:
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if not kodi_sub['iso'][1] == plex_stream.get('languageTag'):
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continue
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elif not kodi_sub['codec'] == plex_stream.get('codec').lower():
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continue
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elif not (kodi_sub['forced'] is (plex_stream.get('forced') == '1')):
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continue
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# Pick the first matching result - even though it's a best guess
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order[i] = plex_stream
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plex_streams_ext.remove(plex_stream)
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break
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# Pick subs irrelevant of forced flag
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for i, kodi_sub in enumerate(kodi_subs_file):
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if order[i] is not None or not kodi_sub['iso']:
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continue
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for plex_stream in plex_streams_ext:
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if not kodi_sub['iso'][1] == plex_stream.get('languageTag'):
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continue
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elif not kodi_sub['codec'] == plex_stream.get('codec').lower():
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continue
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# Pick the first matching result - even though it's a best guess
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order[i] = plex_stream
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plex_streams_ext.remove(plex_stream)
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break
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# Pick subs based on codec (Plex does not detect "English" as en). Forced
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# ones first
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for i, kodi_sub in enumerate(kodi_subs_file):
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if order[i] is not None or not kodi_sub['forced']:
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continue
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for plex_stream in plex_streams_ext:
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if not kodi_sub['codec'] == plex_stream.get('codec').lower():
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continue
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elif not plex_stream.get('forced'):
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continue
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elif plex_stream.get('languageTag') and kodi_sub['iso'] \
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and not plex_stream.get('languageTag') == kodi_sub['iso'][1]:
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continue
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# Pick the first matching result - even though it's a best guess
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order[i] = plex_stream
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plex_streams_ext.remove(plex_stream)
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break
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# Pick subs based on codec alone (Plex does not detect "English" as en).
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# Non-forced
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for i, kodi_sub in enumerate(kodi_subs_file):
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if order[i] is not None:
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continue
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for plex_stream in plex_streams_ext:
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if not kodi_sub['codec'] == plex_stream.get('codec').lower():
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continue
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elif not (kodi_sub['forced'] is (plex_stream.get('forced') == '1')):
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continue
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elif plex_stream.get('languageTag') and kodi_sub['iso'] \
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and not plex_stream.get('languageTag') == kodi_sub['iso'][1]:
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continue
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# Pick the first matching result - even though it's a best guess
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order[i] = plex_stream
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plex_streams_ext.remove(plex_stream)
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break
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# Pick subs based on codec alone (Plex does not detect "English" as en).
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# Even with miss-matching forced flag
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for i, kodi_sub in enumerate(kodi_subs_file):
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if order[i] is not None:
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continue
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for plex_stream in plex_streams_ext:
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if not kodi_sub['codec'] == plex_stream.get('codec').lower():
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continue
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elif plex_stream.get('languageTag') and kodi_sub['iso'] \
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and not plex_stream.get('languageTag') == kodi_sub['iso'][1]:
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continue
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# Pick the first matching result - even though it's a best guess
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order[i] = plex_stream
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plex_streams_ext.remove(plex_stream)
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break
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# Now lets add dummies for Kodi subs we could not match
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for i, kodi_sub in enumerate(kodi_subs_file):
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if order[i] is not None:
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continue
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LOG.debug('Could not match Kodi sub number %s %s, adding a dummy',
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i, kodi_sub)
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order[i] = DummySub()
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if plex_streams_ext:
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LOG.debug('We could not match the following Plex subtitles:')
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log_plex_streams(plex_streams_ext)
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if order:
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LOG.debug('Derived order of external subtitle streams:')
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log_plex_streams(order)
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return order
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def log_plex_streams(plex_streams):
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for i, stream in enumerate(plex_streams):
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LOG.debug('Number %s: %s: %s', i, stream.tag, stream.attrib)
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def accessible_plex_sub_streams(xml):
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# Any additionally downloaded subtitles are not accessible for Kodi
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# We're identifying them by the additional key 'providerTitle'
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plex_streams = [stream for stream in xml
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if stream.get('streamType') == '3'
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and not stream.get('providerTitle')]
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LOG.debug('Available Plex subtitle streams for currently playing item:')
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log_plex_streams(plex_streams)
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# Kodi can display internal subtitle streams for sure
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plex_streams_int = [x for x in plex_streams if 'key' not in x.attrib]
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# We need to check external ones
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# If the movie name is 'The Dark Knight (2008).mkv', Kodi finds
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# subtitles 'The Dark Knight (2008)*.*.<ext>'
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plex_streams_ext = [x for x in plex_streams if 'key' in x.attrib]
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return plex_streams_int, plex_streams_ext
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def kodi_subs_from_player():
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"""
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Kodi can only play subtitles that it pickes up itself: They lie in the
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same folder as the video file and are named similarly
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"""
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kodi_subs = app.APP.player.getAvailableSubtitleStreams()
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LOG.debug('Kodi list of available subtitles: %s', kodi_subs)
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return kodi_subs
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def kodi_external_subs(dirname, filename, kodi_subs_ext):
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file_subs = external_subs_from_filesystem(dirname, filename)
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if len(file_subs) != len(kodi_subs_ext):
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LOG.warn('Unexpected missmatch of number of Kodi subtitles')
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LOG.warn('Kodi subs: %s', kodi_subs_ext)
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LOG.warn('Subs from the filesystem: %s', file_subs)
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raise SubtitleError()
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for i, sub in enumerate(file_subs):
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if sub['iso'] and kodi_subs_ext[i].lower() not in sub['iso']:
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LOG.warn('Unexpected Kodi external subtitle language combo')
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LOG.warn('Kodi subs: %s', kodi_subs_ext)
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LOG.warn('Subs from the filesystem: %s', file_subs)
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raise SubtitleError()
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return file_subs
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def external_subs_from_filesystem(dirname, filename):
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"""
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Returns a list of dicts of subtitles lying within the directory dirname:
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{'iso': tuple of detected ISO language (see LANGUAGE_ISO_CODES) or None,
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'language': language string that Kodi might show in its GUI,
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'forced': has '[. -]forced' been appended to the filename?
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'file': subtitle file name}
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Supply with the currently playing filename as Kodi uses that to search
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for subtitles. See https://kodi.wiki/view/Subtitles
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"""
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file_subs = []
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for root, dirs, files in path_ops.walk(dirname):
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for file in files:
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name, extension = path.splitext(file)
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# Get rid of the dot and force lowercase
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extension = extension[1:].lower()
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if extension not in KODI_SUBTITLE_EXTENSIONS:
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# Not an extension Kodi supports
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continue
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elif not name.startswith(filename):
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# Naming not up to standards, Kodi won't pick up this file
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# (but Plex might!!)
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continue
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regex = SUBTITLE_LANGUAGE.search(name.replace(filename, '', 1))
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language = (regex.group(1) if regex.group(1) else '').lower()
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forced = True if regex.group(2) else False
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iso = None
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if len(language) == 2:
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language_searchgrid = (1, )
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elif len(language) == 3:
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language_searchgrid = (2, 3)
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else:
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language_searchgrid = (0, )
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for lang in LANGUAGE_ISO_CODES:
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for i in language_searchgrid:
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if lang[i] == language:
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iso = lang
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break
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else:
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continue
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break
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file_subs.append({'iso': iso,
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'language': language,
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'forced': forced,
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'codec': extension,
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'file': '%s.%s' % (name, extension)})
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LOG.debug('Detected these external subtitles while scanning the file '
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'system: %s', file_subs)
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return file_subs
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class DummySub(etree.Element):
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def __init__(self):
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super(DummySub, self).__init__('Stream-subtitle-dummy')
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