+ # Look for the DASH manifest
+ if (self._downloader.params.get('youtube_include_dash_manifest', False)):
+ try:
+ # The DASH manifest used needs to be the one from the original video_webpage.
+ # The one found in get_video_info seems to be using different signatures.
+ # However, in the case of an age restriction there won't be any embedded dashmpd in the video_webpage.
+ # Luckily, it seems, this case uses some kind of default signature (len == 86), so the
+ # combination of get_video_info and the _static_decrypt_signature() decryption fallback will work here.
+ if age_gate:
+ dash_manifest_url = video_info.get('dashmpd')[0]
+ else:
+ dash_manifest_url = ytplayer_config['args']['dashmpd']
+ def decrypt_sig(mobj):
+ s = mobj.group(1)
+ dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
+ return '/signature/%s' % dec_s
+ dash_manifest_url = re.sub(r'/s/([\w\.]+)', decrypt_sig, dash_manifest_url)
+ dash_doc = self._download_xml(
+ dash_manifest_url, video_id,
+ note=u'Downloading DASH manifest',
+ errnote=u'Could not download DASH manifest')
+ for r in dash_doc.findall(u'.//{urn:mpeg:DASH:schema:MPD:2011}Representation'):
+ url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
+ if url_el is None:
+ continue
+ format_id = r.attrib['id']
+ video_url = url_el.text
+ filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
+ f = {
+ 'format_id': format_id,
+ 'url': video_url,
+ 'width': int_or_none(r.attrib.get('width')),
+ 'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
+ 'asr': int_or_none(r.attrib.get('audioSamplingRate')),
+ 'filesize': filesize,
+ }
+ try:
+ existing_format = next(
+ fo for fo in formats
+ if fo['format_id'] == format_id)
+ except StopIteration:
+ f.update(self._formats.get(format_id, {}))
+ formats.append(f)
+ else:
+ existing_format.update(f)
+
+ except (ExtractorError, KeyError) as e:
+ self.report_warning(u'Skipping DASH manifest: %s' % e, video_id)