+ def _extract_subtitles(self, video_id):
+ self.report_video_subtitles_download(video_id)
+ request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
+ try:
+ srt_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
+ except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+ return (u'WARNING: unable to download video subtitles: %s' % compat_str(err), None)
+ srt_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', srt_list)
+ srt_lang_list = dict((l[1], l[0]) for l in srt_lang_list)
+ if not srt_lang_list:
+ return (u'WARNING: video has no closed captions', None)
+ if self._downloader.params.get('subtitleslang', False):
+ srt_lang = self._downloader.params.get('subtitleslang')
+ elif 'en' in srt_lang_list:
+ srt_lang = 'en'
+ else:
+ srt_lang = list(srt_lang_list.keys())[0]
+ if not srt_lang in srt_lang_list:
+ return (u'WARNING: no closed captions found in the specified language', None)
+ request = compat_urllib_request.Request('http://www.youtube.com/api/timedtext?lang=%s&name=%s&v=%s' % (srt_lang, srt_lang_list[srt_lang], video_id))
+ try:
+ srt_xml = compat_urllib_request.urlopen(request).read().decode('utf-8')
+ except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+ return (u'WARNING: unable to download video subtitles: %s' % compat_str(err), None)
+ if not srt_xml:
+ return (u'WARNING: unable to download video subtitles', None)
+ return (None, self._closed_captions_xml_to_srt(srt_xml))
+