+ def _get_available_subtitles(self, video_id):
+ try:
+ sub_list = self._download_webpage(
+ 'http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
+ video_id, note=False)
+ except ExtractorError as err:
+ self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
+ return {}
+ lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
+
+ sub_lang_list = {}
+ for l in lang_list:
+ lang = l[1]
+ params = compat_urllib_parse.urlencode({
+ 'lang': lang,
+ 'v': video_id,
+ 'fmt': self._downloader.params.get('subtitlesformat'),
+ })
+ url = u'http://www.youtube.com/api/timedtext?' + params
+ sub_lang_list[lang] = url
+ if not sub_lang_list:
+ self._downloader.report_warning(u'video doesn\'t have subtitles')
+ return {}
+ return sub_lang_list
+
+ def _get_available_automatic_caption(self, video_id, webpage):
+ """We need the webpage for getting the captions url, pass it as an
+ argument to speed up the process."""
+ sub_format = self._downloader.params.get('subtitlesformat')
+ self.to_screen(u'%s: Looking for automatic captions' % video_id)
+ mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
+ err_msg = u'Couldn\'t find automatic captions for %s' % video_id
+ if mobj is None:
+ self._downloader.report_warning(err_msg)
+ return {}
+ player_config = json.loads(mobj.group(1))
+ try:
+ args = player_config[u'args']
+ caption_url = args[u'ttsurl']
+ timestamp = args[u'timestamp']
+ # We get the available subtitles
+ list_params = compat_urllib_parse.urlencode({
+ 'type': 'list',
+ 'tlangs': 1,
+ 'asrs': 1,
+ })
+ list_url = caption_url + '&' + list_params
+ list_page = self._download_webpage(list_url, video_id)
+ caption_list = xml.etree.ElementTree.fromstring(list_page.encode('utf-8'))
+ original_lang_node = caption_list.find('track')
+ if original_lang_node.attrib.get('kind') != 'asr' :
+ self._downloader.report_warning(u'Video doesn\'t have automatic captions')
+ return {}
+ original_lang = original_lang_node.attrib['lang_code']
+
+ sub_lang_list = {}
+ for lang_node in caption_list.findall('target'):
+ sub_lang = lang_node.attrib['lang_code']
+ params = compat_urllib_parse.urlencode({
+ 'lang': original_lang,
+ 'tlang': sub_lang,
+ 'fmt': sub_format,
+ 'ts': timestamp,
+ 'kind': 'asr',
+ })
+ sub_lang_list[sub_lang] = caption_url + '&' + params
+ return sub_lang_list
+ # An extractor error can be raise by the download process if there are
+ # no automatic captions but there are subtitles
+ except (KeyError, ExtractorError):
+ self._downloader.report_warning(err_msg)
+ return {}
+