+
+ presumptive_id = mobj.group('presumptive_id')
+ display_id = presumptive_id
+ if presumptive_id:
+ webpage = self._download_webpage(url, display_id)
+
+ upload_date = unified_strdate(self._search_regex(
+ r'<input type="hidden" id="air_date_[0-9]+" value="([^"]+)"',
+ webpage, 'upload date', default=None))
+
+ # tabbed frontline videos
+ tabbed_videos = re.findall(
+ r'<div[^>]+class="videotab[^"]*"[^>]+vid="(\d+)"', webpage)
+ if tabbed_videos:
+ return tabbed_videos, presumptive_id, upload_date
+
+ MEDIA_ID_REGEXES = [
+ r"div\s*:\s*'videoembed'\s*,\s*mediaid\s*:\s*'(\d+)'", # frontline video embed
+ r'class="coveplayerid">([^<]+)<', # coveplayer
+ r'<input type="hidden" id="pbs_video_id_[0-9]+" value="([0-9]+)"/>', # jwplayer
+ ]
+
+ media_id = self._search_regex(
+ MEDIA_ID_REGEXES, webpage, 'media ID', fatal=False, default=None)
+ if media_id:
+ return media_id, presumptive_id, upload_date
+
+ url = self._search_regex(
+ r'<iframe\s+(?:class|id)=["\']partnerPlayer["\'].*?\s+src=["\'](.*?)["\']>',
+ webpage, 'player URL')
+ mobj = re.match(self._VALID_URL, url)
+
+ player_id = mobj.group('player_id')
+ if not display_id:
+ display_id = player_id
+ if player_id:
+ player_page = self._download_webpage(
+ url, display_id, note='Downloading player page',
+ errnote='Could not download player page')
+ video_id = self._search_regex(
+ r'<div\s+id="video_([0-9]+)"', player_page, 'video ID')
+ else:
+ video_id = mobj.group('id')
+ display_id = video_id
+
+ return video_id, display_id, None
+
+ def _real_extract(self, url):
+ video_id, display_id, upload_date = self._extract_webpage(url)
+
+ if isinstance(video_id, list):
+ entries = [self.url_result(
+ 'http://video.pbs.org/video/%s' % vid_id, 'PBS', vid_id)
+ for vid_id in video_id]
+ return self.playlist_result(entries, display_id)
+