+ langcode = LANGS.get(lang, lang)
+
+ formats = []
+ for format_id, format_dict in vsr.items():
+ f = dict(format_dict)
+ versionCode = f.get('versionCode')
+ l = re.escape(langcode)
+
+ # Language preference from most to least priority
+ # Reference: section 6.8 of
+ # https://www.arte.tv/sites/en/corporate/files/complete-technical-guidelines-arte-geie-v1-07-1.pdf
+ PREFERENCES = (
+ # original version in requested language, without subtitles
+ r'VO{0}$'.format(l),
+ # original version in requested language, with partial subtitles in requested language
+ r'VO{0}-ST{0}$'.format(l),
+ # original version in requested language, with subtitles for the deaf and hard-of-hearing in requested language
+ r'VO{0}-STM{0}$'.format(l),
+ # non-original (dubbed) version in requested language, without subtitles
+ r'V{0}$'.format(l),
+ # non-original (dubbed) version in requested language, with subtitles partial subtitles in requested language
+ r'V{0}-ST{0}$'.format(l),
+ # non-original (dubbed) version in requested language, with subtitles for the deaf and hard-of-hearing in requested language
+ r'V{0}-STM{0}$'.format(l),
+ # original version in requested language, with partial subtitles in different language
+ r'VO{0}-ST(?!{0}).+?$'.format(l),
+ # original version in requested language, with subtitles for the deaf and hard-of-hearing in different language
+ r'VO{0}-STM(?!{0}).+?$'.format(l),
+ # original version in different language, with partial subtitles in requested language
+ r'VO(?:(?!{0}).+?)?-ST{0}$'.format(l),
+ # original version in different language, with subtitles for the deaf and hard-of-hearing in requested language
+ r'VO(?:(?!{0}).+?)?-STM{0}$'.format(l),
+ # original version in different language, without subtitles
+ r'VO(?:(?!{0}))?$'.format(l),
+ # original version in different language, with partial subtitles in different language
+ r'VO(?:(?!{0}).+?)?-ST(?!{0}).+?$'.format(l),
+ # original version in different language, with subtitles for the deaf and hard-of-hearing in different language
+ r'VO(?:(?!{0}).+?)?-STM(?!{0}).+?$'.format(l),
+ )
+
+ for pref, p in enumerate(PREFERENCES):
+ if re.match(p, versionCode):
+ lang_pref = len(PREFERENCES) - pref
+ break
+ else:
+ lang_pref = -1
+
+ format = {
+ 'format_id': format_id,
+ 'preference': -10 if f.get('videoFormat') == 'M3U8' else None,
+ 'language_preference': lang_pref,
+ 'format_note': '%s, %s' % (f.get('versionCode'), f.get('versionLibelle')),
+ 'width': int_or_none(f.get('width')),
+ 'height': int_or_none(f.get('height')),
+ 'tbr': int_or_none(f.get('bitrate')),
+ 'quality': qfunc(f.get('quality')),
+ }
+
+ if f.get('mediaType') == 'rtmp':
+ format['url'] = f['streamer']
+ format['play_path'] = 'mp4:' + f['url']
+ format['ext'] = 'flv'
+ else:
+ format['url'] = f['url']