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@ -423,7 +423,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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elif len(s) == 87:
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return s[6:27] + s[4] + s[28:39] + s[27] + s[40:59] + s[2] + s[60:]
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elif len(s) == 86:
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return s[5:20] + s[2] + s[21:]
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return s[5:40] + s[3] + s[41:48] + s[0] + s[49:86]
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elif len(s) == 85:
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return s[83:34:-1] + s[0] + s[33:27:-1] + s[3] + s[26:19:-1] + s[34] + s[18:3:-1] + s[27]
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elif len(s) == 84:
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@ -434,6 +434,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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return s[1:19] + s[0] + s[20:68] + s[19] + s[69:82]
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elif len(s) == 81:
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return s[56] + s[79:56:-1] + s[41] + s[55:41:-1] + s[80] + s[40:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
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elif len(s) == 80:
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return s[1:19] + s[0] + s[20:68] + s[19] + s[69:80]
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elif len(s) == 79:
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return s[54] + s[77:54:-1] + s[39] + s[53:39:-1] + s[78] + s[38:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
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@ -456,11 +458,13 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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try:
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sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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return (u'unable to download video subtitles: %s' % compat_str(err), None)
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self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
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return {}
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sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
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sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
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if not sub_lang_list:
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return (u'video doesn\'t have subtitles', None)
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self._downloader.report_warning(u'video doesn\'t have subtitles')
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return {}
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return sub_lang_list
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def _list_available_subtitles(self, video_id):
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@ -469,8 +473,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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def _request_subtitle(self, sub_lang, sub_name, video_id, format):
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"""
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Return tuple:
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(error_message, sub_lang, sub)
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Return the subtitle as a string or None if they are not found
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"""
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self.report_video_subtitles_request(video_id, sub_lang, format)
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params = compat_urllib_parse.urlencode({
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@ -483,21 +486,24 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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try:
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sub = compat_urllib_request.urlopen(url).read().decode('utf-8')
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
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return (u'unable to download video subtitles: %s' % compat_str(err), None, None)
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self._downloader.report_warning(u'unable to download video subtitles for %s: %s' % (sub_lang, compat_str(err)))
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return
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if not sub:
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return (u'Did not fetch video subtitles', None, None)
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return (None, sub_lang, sub)
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self._downloader.report_warning(u'Did not fetch video subtitles')
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return
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return sub
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def _request_automatic_caption(self, video_id, webpage):
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"""We need the webpage for getting the captions url, pass it as an
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argument to speed up the process."""
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sub_lang = self._downloader.params.get('subtitleslang') or 'en'
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sub_lang = (self._downloader.params.get('subtitleslangs') or ['en'])[0]
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sub_format = self._downloader.params.get('subtitlesformat')
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self.to_screen(u'%s: Looking for automatic captions' % video_id)
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mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
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err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
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if mobj is None:
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return [(err_msg, None, None)]
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self._downloader.report_warning(err_msg)
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return {}
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player_config = json.loads(mobj.group(1))
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try:
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args = player_config[u'args']
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@ -512,40 +518,43 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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})
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subtitles_url = caption_url + '&' + params
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sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
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return [(None, sub_lang, sub)]
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except KeyError:
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return [(err_msg, None, None)]
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def _extract_subtitle(self, video_id):
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return {sub_lang: sub}
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# An extractor error can be raise by the download process if there are
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# no automatic captions but there are subtitles
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except (KeyError, ExtractorError):
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self._downloader.report_warning(err_msg)
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return {}
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def _extract_subtitles(self, video_id):
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"""
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Return a list with a tuple:
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[(error_message, sub_lang, sub)]
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Return a dictionary: {language: subtitles} or {} if the subtitles
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couldn't be found
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"""
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sub_lang_list = self._get_available_subtitles(video_id)
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available_subs_list = self._get_available_subtitles(video_id)
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sub_format = self._downloader.params.get('subtitlesformat')
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if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
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return [(sub_lang_list[0], None, None)]
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if self._downloader.params.get('subtitleslang', False):
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sub_lang = self._downloader.params.get('subtitleslang')
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elif 'en' in sub_lang_list:
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sub_lang = 'en'
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if not available_subs_list: #There was some error, it didn't get the available subtitles
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return {}
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if self._downloader.params.get('allsubtitles', False):
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sub_lang_list = available_subs_list
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else:
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sub_lang = list(sub_lang_list.keys())[0]
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if not sub_lang in sub_lang_list:
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return [(u'no closed captions found in the specified language "%s"' % sub_lang, None, None)]
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subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
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return [subtitle]
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def _extract_all_subtitles(self, video_id):
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sub_lang_list = self._get_available_subtitles(video_id)
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sub_format = self._downloader.params.get('subtitlesformat')
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if isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
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return [(sub_lang_list[0], None, None)]
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subtitles = []
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if self._downloader.params.get('subtitleslangs', False):
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reqested_langs = self._downloader.params.get('subtitleslangs')
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elif 'en' in available_subs_list:
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reqested_langs = ['en']
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else:
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reqested_langs = [list(available_subs_list.keys())[0]]
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sub_lang_list = {}
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for sub_lang in reqested_langs:
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if not sub_lang in available_subs_list:
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self._downloader.report_warning(u'no closed captions found in the specified language "%s"' % sub_lang)
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continue
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sub_lang_list[sub_lang] = available_subs_list[sub_lang]
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subtitles = {}
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for sub_lang in sub_lang_list:
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subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
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subtitles.append(subtitle)
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if subtitle:
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subtitles[sub_lang] = subtitle
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return subtitles
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def _print_formats(self, formats):
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@ -736,25 +745,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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# subtitles
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video_subtitles = None
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if self._downloader.params.get('writesubtitles', False):
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video_subtitles = self._extract_subtitle(video_id)
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if video_subtitles:
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(sub_error, sub_lang, sub) = video_subtitles[0]
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if sub_error:
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self._downloader.report_warning(sub_error)
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if self._downloader.params.get('writeautomaticsub', False):
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if self._downloader.params.get('writesubtitles', False) or self._downloader.params.get('allsubtitles', False):
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video_subtitles = self._extract_subtitles(video_id)
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elif self._downloader.params.get('writeautomaticsub', False):
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video_subtitles = self._request_automatic_caption(video_id, video_webpage)
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(sub_error, sub_lang, sub) = video_subtitles[0]
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if sub_error:
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self._downloader.report_warning(sub_error)
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if self._downloader.params.get('allsubtitles', False):
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video_subtitles = self._extract_all_subtitles(video_id)
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for video_subtitle in video_subtitles:
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(sub_error, sub_lang, sub) = video_subtitle
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if sub_error:
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self._downloader.report_warning(sub_error)
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if self._downloader.params.get('listsubtitles', False):
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self._list_available_subtitles(video_id)
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Allan Zhou
12 years ago