Merge branch 'master' of github.com:rg3/youtube-dl
[youtube-dl] / youtube_dl / InfoExtractors.py
index 8e164760b5d4c5ec6661a1dcd638263faea96c50..620cce1893788e9ad1abc326896a878c63524d13 100755 (executable)
@@ -114,8 +114,9 @@ class InfoExtractor(object):
     def _request_webpage(self, url_or_request, video_id, note=None, errnote=None):
         """ Returns the response handle """
         if note is None:
-            note = u'Downloading video webpage'
-        self._downloader.to_screen(u'[%s] %s: %s' % (self.IE_NAME, video_id, note))
+            self.report_download_webpage(video_id)
+        elif note is not False:
+            self.to_screen(u'%s: %s' % (video_id, note))
         try:
             return compat_urllib_request.urlopen(url_or_request)
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
@@ -133,8 +134,55 @@ class InfoExtractor(object):
         else:
             encoding = 'utf-8'
         webpage_bytes = urlh.read()
+        if self._downloader.params.get('dump_intermediate_pages', False):
+            try:
+                url = url_or_request.get_full_url()
+            except AttributeError:
+                url = url_or_request
+            self.to_screen(u'Dumping request to ' + url)
+            dump = base64.b64encode(webpage_bytes).decode('ascii')
+            self._downloader.to_screen(dump)
         return webpage_bytes.decode(encoding, 'replace')
 
+    def to_screen(self, msg):
+        """Print msg to screen, prefixing it with '[ie_name]'"""
+        self._downloader.to_screen(u'[%s] %s' % (self.IE_NAME, msg))
+
+    def report_extraction(self, id_or_name):
+        """Report information extraction."""
+        self.to_screen(u'%s: Extracting information' % id_or_name)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self.to_screen(u'%s: Downloading webpage' % video_id)
+
+    def report_age_confirmation(self):
+        """Report attempt to confirm age."""
+        self.to_screen(u'Confirming age')
+
+    #Methods for following #608
+    #They set the correct value of the '_type' key
+    def video_result(self, video_info):
+        """Returns a video"""
+        video_info['_type'] = 'video'
+        return video_info
+    def url_result(self, url, ie=None):
+        """Returns a url that points to a page that should be processed"""
+        #TODO: ie should be the class used for getting the info
+        video_info = {'_type': 'url',
+                      'url': url,
+                      'ie_key': ie}
+        return video_info
+    def playlist_result(self, entries, playlist_id=None, playlist_title=None):
+        """Returns a playlist"""
+        video_info = {'_type': 'playlist',
+                      'entries': entries}
+        if playlist_id:
+            video_info['id'] = playlist_id
+        if playlist_title:
+            video_info['title'] = playlist_title
+        return video_info
+
 
 class YoutubeIE(InfoExtractor):
     """Information extractor for youtube.com."""
@@ -204,48 +252,44 @@ class YoutubeIE(InfoExtractor):
 
     def report_lang(self):
         """Report attempt to set language."""
-        self._downloader.to_screen(u'[youtube] Setting language')
+        self.to_screen(u'Setting language')
 
     def report_login(self):
         """Report attempt to log in."""
-        self._downloader.to_screen(u'[youtube] Logging in')
-
-    def report_age_confirmation(self):
-        """Report attempt to confirm age."""
-        self._downloader.to_screen(u'[youtube] Confirming age')
+        self.to_screen(u'Logging in')
 
     def report_video_webpage_download(self, video_id):
         """Report attempt to download video webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video webpage' % video_id)
+        self.to_screen(u'%s: Downloading video webpage' % video_id)
 
     def report_video_info_webpage_download(self, video_id):
         """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video info webpage' % video_id)
+        self.to_screen(u'%s: Downloading video info webpage' % video_id)
 
     def report_video_subtitles_download(self, video_id):
         """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Checking available subtitles' % video_id)
+        self.to_screen(u'%s: Checking available subtitles' % video_id)
 
     def report_video_subtitles_request(self, video_id, sub_lang, format):
         """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
+        self.to_screen(u'%s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
 
     def report_video_subtitles_available(self, video_id, sub_lang_list):
         """Report available subtitles."""
         sub_lang = ",".join(list(sub_lang_list.keys()))
-        self._downloader.to_screen(u'[youtube] %s: Available subtitles for video: %s' % (video_id, sub_lang))
+        self.to_screen(u'%s: Available subtitles for video: %s' % (video_id, sub_lang))
 
     def report_information_extraction(self, video_id):
         """Report attempt to extract video information."""
-        self._downloader.to_screen(u'[youtube] %s: Extracting video information' % video_id)
+        self.to_screen(u'%s: Extracting video information' % video_id)
 
     def report_unavailable_format(self, video_id, format):
         """Report extracted video URL."""
-        self._downloader.to_screen(u'[youtube] %s: Format %s not available' % (video_id, format))
+        self.to_screen(u'%s: Format %s not available' % (video_id, format))
 
     def report_rtmp_download(self):
         """Indicate the download will use the RTMP protocol."""
-        self._downloader.to_screen(u'[youtube] RTMP download detected')
+        self.to_screen(u'RTMP download detected')
 
     def _get_available_subtitles(self, video_id):
         self.report_video_subtitles_download(video_id)
@@ -253,11 +297,11 @@ class YoutubeIE(InfoExtractor):
         try:
             sub_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)
+            return (u'unable to download video subtitles: %s' % compat_str(err), None)
         sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
         sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list)
         if not sub_lang_list:
-            return (u'WARNING: video doesn\'t have subtitles', None)
+            return (u'video doesn\'t have subtitles', None)
         return sub_lang_list
 
     def _list_available_subtitles(self, video_id):
@@ -265,6 +309,10 @@ class YoutubeIE(InfoExtractor):
         self.report_video_subtitles_available(video_id, sub_lang_list)
 
     def _request_subtitle(self, sub_lang, sub_name, video_id, format):
+        """
+        Return tuple:
+        (error_message, sub_lang, sub)
+        """
         self.report_video_subtitles_request(video_id, sub_lang, format)
         params = compat_urllib_parse.urlencode({
             'lang': sub_lang,
@@ -276,14 +324,20 @@ class YoutubeIE(InfoExtractor):
         try:
             sub = compat_urllib_request.urlopen(url).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)
+            return (u'unable to download video subtitles: %s' % compat_str(err), None, None)
         if not sub:
-            return (u'WARNING: Did not fetch video subtitles', None)
+            return (u'Did not fetch video subtitles', None, None)
         return (None, sub_lang, sub)
 
     def _extract_subtitle(self, video_id):
+        """
+        Return a list with a tuple:
+        [(error_message, sub_lang, sub)]
+        """
         sub_lang_list = self._get_available_subtitles(video_id)
         sub_format = self._downloader.params.get('subtitlesformat')
+        if  isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
+            return [(sub_lang_list[0], None, None)]
         if self._downloader.params.get('subtitleslang', False):
             sub_lang = self._downloader.params.get('subtitleslang')
         elif 'en' in sub_lang_list:
@@ -291,7 +345,7 @@ class YoutubeIE(InfoExtractor):
         else:
             sub_lang = list(sub_lang_list.keys())[0]
         if not sub_lang in sub_lang_list:
-            return (u'WARNING: no closed captions found in the specified language "%s"' % sub_lang, None)
+            return [(u'no closed captions found in the specified language "%s"' % sub_lang, None, None)]
 
         subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
         return [subtitle]
@@ -299,6 +353,8 @@ class YoutubeIE(InfoExtractor):
     def _extract_all_subtitles(self, video_id):
         sub_lang_list = self._get_available_subtitles(video_id)
         sub_format = self._downloader.params.get('subtitlesformat')
+        if  isinstance(sub_lang_list,tuple): #There was some error, it didn't get the available subtitles
+            return [(sub_lang_list[0], None, None)]
         subtitles = []
         for sub_lang in sub_lang_list:
             subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format)
@@ -451,18 +507,14 @@ class YoutubeIE(InfoExtractor):
         # Get video info
         self.report_video_info_webpage_download(video_id)
         for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
-            video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
+            video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
                     % (video_id, el_type))
-            request = compat_urllib_request.Request(video_info_url)
-            try:
-                video_info_webpage_bytes = compat_urllib_request.urlopen(request).read()
-                video_info_webpage = video_info_webpage_bytes.decode('utf-8', 'ignore')
-                video_info = compat_parse_qs(video_info_webpage)
-                if 'token' in video_info:
-                    break
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download video info webpage: %s' % compat_str(err))
-                return
+            video_info_webpage = self._download_webpage(video_info_url, video_id,
+                                    note=False,
+                                    errnote='unable to download video info webpage')
+            video_info = compat_parse_qs(video_info_webpage)
+            if 'token' in video_info:
+                break
         if 'token' not in video_info:
             if 'reason' in video_info:
                 self._downloader.report_error(u'YouTube said: %s' % video_info['reason'][0])
@@ -510,19 +562,18 @@ class YoutubeIE(InfoExtractor):
         mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
         if mobj is not None:
             upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
-            format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y']
-            for expression in format_expressions:
-                try:
-                    upload_date = datetime.datetime.strptime(upload_date, expression).strftime('%Y%m%d')
-                except:
-                    pass
+            upload_date = unified_strdate(upload_date)
 
         # description
         video_description = get_element_by_id("eow-description", video_webpage)
         if video_description:
             video_description = clean_html(video_description)
         else:
-            video_description = ''
+            fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
+            if fd_mobj:
+                video_description = unescapeHTML(fd_mobj.group(1))
+            else:
+                video_description = u''
 
         # subtitles
         video_subtitles = None
@@ -532,14 +583,14 @@ class YoutubeIE(InfoExtractor):
             if video_subtitles:
                 (sub_error, sub_lang, sub) = video_subtitles[0]
                 if sub_error:
-                    self._downloader.trouble(sub_error)
+                    self._downloader.report_error(sub_error)
 
         if self._downloader.params.get('allsubtitles', False):
             video_subtitles = self._extract_all_subtitles(video_id)
             for video_subtitle in video_subtitles:
                 (sub_error, sub_lang, sub) = video_subtitle
                 if sub_error:
-                    self._downloader.trouble(sub_error)
+                    self._downloader.report_error(sub_error)
 
         if self._downloader.params.get('listsubtitles', False):
             sub_lang_list = self._list_available_subtitles(video_id)
@@ -574,8 +625,7 @@ class YoutubeIE(InfoExtractor):
                 format_list = available_formats
             existing_formats = [x for x in format_list if x in url_map]
             if len(existing_formats) == 0:
-                self._downloader.report_error(u'no known formats available for video')
-                return
+                raise ExtractorError(u'no known formats available for video')
             if self._downloader.params.get('listformats', None):
                 self._print_formats(existing_formats)
                 return
@@ -595,11 +645,9 @@ class YoutubeIE(InfoExtractor):
                         video_url_list = [(rf, url_map[rf])]
                         break
                 if video_url_list is None:
-                    self._downloader.report_error(u'requested format not available')
-                    return
+                    raise ExtractorError(u'requested format not available')
         else:
-            self._downloader.report_error(u'no conn or url_encoded_fmt_stream_map information found in video info')
-            return
+            raise ExtractorError(u'no conn or url_encoded_fmt_stream_map information found in video info')
 
         results = []
         for format_param, video_real_url in video_url_list:
@@ -635,24 +683,9 @@ class MetacafeIE(InfoExtractor):
     _FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
     IE_NAME = u'metacafe'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_disclaimer(self):
         """Report disclaimer retrieval."""
-        self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
-
-    def report_age_confirmation(self):
-        """Report attempt to confirm age."""
-        self._downloader.to_screen(u'[metacafe] Confirming age')
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[metacafe] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[metacafe] %s: Extracting information' % video_id)
+        self.to_screen(u'Retrieving disclaimer')
 
     def _real_initialize(self):
         # Retrieve disclaimer
@@ -689,17 +722,10 @@ class MetacafeIE(InfoExtractor):
         # Check if video comes from YouTube
         mobj2 = re.match(r'^yt-(.*)$', video_id)
         if mobj2 is not None:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % mobj2.group(1)])
-            return
+            return [self.url_result('http://www.youtube.com/watch?v=%s' % mobj2.group(1), 'Youtube')]
 
         # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request('http://www.metacafe.com/watch/%s/' % video_id)
-        try:
-            self.report_download_webpage(video_id)
-            webpage = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable retrieve video webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage('http://www.metacafe.com/watch/%s/' % video_id, video_id)
 
         # Extract URL, uploader and title from webpage
         self.report_extraction(video_id)
@@ -724,13 +750,13 @@ class MetacafeIE(InfoExtractor):
             if 'mediaData' not in vardict:
                 self._downloader.report_error(u'unable to extract media URL')
                 return
-            mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
+            mobj = re.search(r'"mediaURL":"(?P<mediaURL>http.*?)",(.*?)"key":"(?P<key>.*?)"', vardict['mediaData'][0])
             if mobj is None:
                 self._downloader.report_error(u'unable to extract media URL')
                 return
-            mediaURL = mobj.group(1).replace('\\/', '/')
+            mediaURL = mobj.group('mediaURL').replace('\\/', '/')
             video_extension = mediaURL[-3:]
-            video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
+            video_url = '%s?__gda__=%s' % (mediaURL, mobj.group('key'))
 
         mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
         if mobj is None:
@@ -761,13 +787,6 @@ class DailymotionIE(InfoExtractor):
     IE_NAME = u'dailymotion'
     _WORKING = False
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
-
     def _real_extract(self, url):
         # Extract id and simplified title from URL
         mobj = re.match(self._VALID_URL, url)
@@ -795,7 +814,7 @@ class DailymotionIE(InfoExtractor):
         for key in ['hd1080URL', 'hd720URL', 'hqURL', 'sdURL', 'ldURL', 'video_url']:
             if key in flashvars:
                 max_quality = key
-                self._downloader.to_screen(u'[dailymotion] Using %s' % key)
+                self.to_screen(u'Using %s' % key)
                 break
         else:
             self._downloader.report_error(u'unable to extract video URL')
@@ -849,17 +868,6 @@ class PhotobucketIE(InfoExtractor):
     _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
     IE_NAME = u'photobucket'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[photobucket] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[photobucket] %s: Extracting information' % video_id)
-
     def _real_extract(self, url):
         # Extract id from URL
         mobj = re.match(self._VALID_URL, url)
@@ -918,17 +926,6 @@ class YahooIE(InfoExtractor):
     _VPAGE_URL = r'(?:http://)?video\.yahoo\.com/watch/([0-9]+)/([0-9]+)(?:[#\?].*)?'
     IE_NAME = u'video.yahoo'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[video.yahoo] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[video.yahoo] %s: Extracting information' % video_id)
-
     def _real_extract(self, url, new_video=True):
         # Extract ID from URL
         mobj = re.match(self._VALID_URL, url)
@@ -1058,17 +1055,6 @@ class VimeoIE(InfoExtractor):
     _VALID_URL = r'(?P<proto>https?://)?(?:(?:www|player)\.)?vimeo\.com/(?:(?:groups|album)/[^/]+/)?(?P<direct_link>play_redirect_hls\?clip_id=)?(?:videos?/)?(?P<id>[0-9]+)'
     IE_NAME = u'vimeo'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[vimeo] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[vimeo] %s: Extracting information' % video_id)
-
     def _real_extract(self, url, new_video=True):
         # Extract ID from URL
         mobj = re.match(self._VALID_URL, url)
@@ -1102,7 +1088,10 @@ class VimeoIE(InfoExtractor):
             config = webpage.split(' = {config:')[1].split(',assets:')[0]
             config = json.loads(config)
         except:
-            self._downloader.report_error(u'unable to extract info section')
+            if re.search('The creator of this video has not given you permission to embed it on this domain.', webpage):
+                self._downloader.report_error(u'The author has restricted the access to this video, try with the "--referer" option')
+            else:
+                self._downloader.report_error(u'unable to extract info section')
             return
 
         # Extract title
@@ -1118,7 +1107,7 @@ class VimeoIE(InfoExtractor):
         # Extract video description
         video_description = get_element_by_attribute("itemprop", "description", webpage)
         if video_description: video_description = clean_html(video_description)
-        else: video_description = ''
+        else: video_description = u''
 
         # Extract upload date
         video_upload_date = None
@@ -1149,7 +1138,7 @@ class VimeoIE(InfoExtractor):
                 video_quality = files[quality][0][2]
                 video_codec = files[quality][0][0]
                 video_extension = files[quality][0][1]
-                self._downloader.to_screen(u'[vimeo] %s: Downloading %s file at %s quality' % (video_id, video_codec.upper(), video_quality))
+                self.to_screen(u'%s: Downloading %s file at %s quality' % (video_id, video_codec.upper(), video_quality))
                 break
         else:
             self._downloader.report_error(u'no known codec found')
@@ -1179,17 +1168,6 @@ class ArteTvIE(InfoExtractor):
 
     IE_NAME = u'arte.tv'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[arte.tv] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[arte.tv] %s: Extracting information' % video_id)
-
     def fetch_webpage(self, url):
         request = compat_urllib_request.Request(url)
         try:
@@ -1214,7 +1192,7 @@ class ArteTvIE(InfoExtractor):
 
         for (i, key, err) in matchTuples:
             if mobj.group(i) is None:
-                self._downloader.trouble(err)
+                self._downloader.report_error(err)
                 return
             else:
                 info[key] = mobj.group(i)
@@ -1228,7 +1206,7 @@ class ArteTvIE(InfoExtractor):
             r'src="(.*?/videothek_js.*?\.js)',
             0,
             [
-                (1, 'url', u'ERROR: Invalid URL: %s' % url)
+                (1, 'url', u'Invalid URL: %s' % url)
             ]
         )
         http_host = url.split('/')[2]
@@ -1240,9 +1218,9 @@ class ArteTvIE(InfoExtractor):
                 '(rtmp://.*?)\'',
             re.DOTALL,
             [
-                (1, 'path',   u'ERROR: could not extract video path: %s' % url),
-                (2, 'player', u'ERROR: could not extract video player: %s' % url),
-                (3, 'url',    u'ERROR: could not extract video url: %s' % url)
+                (1, 'path',   u'could not extract video path: %s' % url),
+                (2, 'player', u'could not extract video player: %s' % url),
+                (3, 'url',    u'could not extract video url: %s' % url)
             ]
         )
         video_url = u'%s/%s' % (info.get('url'), info.get('path'))
@@ -1254,7 +1232,7 @@ class ArteTvIE(InfoExtractor):
             r'param name="movie".*?videorefFileUrl=(http[^\'"&]*)',
             0,
             [
-                (1, 'url', u'ERROR: Invalid URL: %s' % url)
+                (1, 'url', u'Invalid URL: %s' % url)
             ]
         )
         next_url = compat_urllib_parse.unquote(info.get('url'))
@@ -1263,7 +1241,7 @@ class ArteTvIE(InfoExtractor):
             r'<video lang="%s" ref="(http[^\'"&]*)' % video_lang,
             0,
             [
-                (1, 'url', u'ERROR: Could not find <video> tag: %s' % url)
+                (1, 'url', u'Could not find <video> tag: %s' % url)
             ]
         )
         next_url = compat_urllib_parse.unquote(info.get('url'))
@@ -1276,10 +1254,10 @@ class ArteTvIE(InfoExtractor):
                 '<url quality="hd">(.*?)</url>',
             re.DOTALL,
             [
-                (1, 'id',    u'ERROR: could not extract video id: %s' % url),
-                (2, 'title', u'ERROR: could not extract video title: %s' % url),
-                (3, 'date',  u'ERROR: could not extract video date: %s' % url),
-                (4, 'url',   u'ERROR: could not extract video url: %s' % url)
+                (1, 'id',    u'could not extract video id: %s' % url),
+                (2, 'title', u'could not extract video title: %s' % url),
+                (3, 'date',  u'could not extract video date: %s' % url),
+                (4, 'url',   u'could not extract video url: %s' % url)
             ]
         )
 
@@ -1313,25 +1291,18 @@ class GenericIE(InfoExtractor):
     _VALID_URL = r'.*'
     IE_NAME = u'generic'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_webpage(self, video_id):
         """Report webpage download."""
         if not self._downloader.params.get('test', False):
-            self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
-        self._downloader.to_screen(u'[generic] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
+            self._downloader.report_warning(u'Falling back on generic information extractor.')
+        super(GenericIE, self).report_download_webpage(video_id)
 
     def report_following_redirect(self, new_url):
         """Report information extraction."""
         self._downloader.to_screen(u'[redirect] Following redirect to %s' % new_url)
 
     def _test_redirect(self, url):
-        """Check if it is a redirect, like url shorteners, in case restart chain."""
+        """Check if it is a redirect, like url shorteners, in case return the new url."""
         class HeadRequest(compat_urllib_request.Request):
             def get_method(self):
                 return "HEAD"
@@ -1382,11 +1353,11 @@ class GenericIE(InfoExtractor):
             return False
 
         self.report_following_redirect(new_url)
-        self._downloader.download([new_url])
-        return True
+        return new_url
 
     def _real_extract(self, url):
-        if self._test_redirect(url): return
+        new_url = self._test_redirect(url)
+        if new_url: return [self.url_result(new_url)]
 
         video_id = url.split('/')[-1]
         try:
@@ -1459,9 +1430,6 @@ class YoutubeSearchIE(InfoExtractor):
     _max_youtube_results = 1000
     IE_NAME = u'youtube:search'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_page(self, query, pagenum):
         """Report attempt to download search page with given number."""
         query = query.decode(preferredencoding())
@@ -1477,11 +1445,9 @@ class YoutubeSearchIE(InfoExtractor):
         prefix = prefix[8:]
         query = query.encode('utf-8')
         if prefix == '':
-            self._download_n_results(query, 1)
-            return
+            return self._get_n_results(query, 1)
         elif prefix == 'all':
-            self._download_n_results(query, self._max_youtube_results)
-            return
+            self._get_n_results(query, self._max_youtube_results)
         else:
             try:
                 n = int(prefix)
@@ -1491,14 +1457,12 @@ class YoutubeSearchIE(InfoExtractor):
                 elif n > self._max_youtube_results:
                     self._downloader.report_warning(u'ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
                     n = self._max_youtube_results
-                self._download_n_results(query, n)
-                return
+                return self._get_n_results(query, n)
             except ValueError: # parsing prefix as integer fails
-                self._download_n_results(query, 1)
-                return
+                return self._get_n_results(query, 1)
 
-    def _download_n_results(self, query, n):
-        """Downloads a specified number of results for a query"""
+    def _get_n_results(self, query, n):
+        """Get a specified number of results for a query"""
 
         video_ids = []
         pagenum = 0
@@ -1516,7 +1480,7 @@ class YoutubeSearchIE(InfoExtractor):
             api_response = json.loads(data)['data']
 
             if not 'items' in api_response:
-                self._downloader.trouble(u'[youtube] No video results')
+                self._downloader.report_error(u'[youtube] No video results')
                 return
 
             new_ids = list(video['id'] for video in api_response['items'])
@@ -1527,9 +1491,8 @@ class YoutubeSearchIE(InfoExtractor):
 
         if len(video_ids) > n:
             video_ids = video_ids[:n]
-        for id in video_ids:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
-        return
+        videos = [self.url_result('http://www.youtube.com/watch?v=%s' % id, 'Youtube') for id in video_ids]
+        return videos
 
 
 class GoogleSearchIE(InfoExtractor):
@@ -1541,13 +1504,10 @@ class GoogleSearchIE(InfoExtractor):
     _max_google_results = 1000
     IE_NAME = u'video.google:search'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_page(self, query, pagenum):
         """Report attempt to download playlist page with given number."""
         query = query.decode(preferredencoding())
-        self._downloader.to_screen(u'[video.google] query "%s": Downloading page %s' % (query, pagenum))
+        self.to_screen(u'query "%s": Downloading page %s' % (query, pagenum))
 
     def _real_extract(self, query):
         mobj = re.match(self._VALID_URL, query)
@@ -1625,13 +1585,10 @@ class YahooSearchIE(InfoExtractor):
     _max_yahoo_results = 1000
     IE_NAME = u'video.yahoo:search'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_page(self, query, pagenum):
         """Report attempt to download playlist page with given number."""
         query = query.decode(preferredencoding())
-        self._downloader.to_screen(u'[video.yahoo] query "%s": Downloading page %s' % (query, pagenum))
+        self.to_screen(u'query "%s": Downloading page %s' % (query, pagenum))
 
     def _real_extract(self, query):
         mobj = re.match(self._VALID_URL, query)
@@ -1710,9 +1667,7 @@ class YoutubePlaylistIE(InfoExtractor):
                         (?:
                            (?:course|view_play_list|my_playlists|artist|playlist|watch)
                            \? (?:.*?&)*? (?:p|a|list)=
-                        |  user/.*?/user/
                         |  p/
-                        |  user/.*?#[pg]/c/
                         )
                         ((?:PL|EC|UU)?[0-9A-Za-z-_]{10,})
                         .*
@@ -1723,9 +1678,6 @@ class YoutubePlaylistIE(InfoExtractor):
     _MAX_RESULTS = 50
     IE_NAME = u'youtube:playlist'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     @classmethod
     def suitable(cls, url):
         """Receives a URL and returns True if suitable for this IE."""
@@ -1763,9 +1715,14 @@ class YoutubePlaylistIE(InfoExtractor):
                 self._downloader.report_error(u'Invalid JSON in API response: ' + compat_str(err))
                 return
 
-            if not 'feed' in response or not 'entry' in response['feed']:
+            if 'feed' not in response:
                 self._downloader.report_error(u'Got a malformed response from YouTube API')
                 return
+            playlist_title = response['feed']['title']['$t']
+            if 'entry' not in response['feed']:
+                # Number of videos is a multiple of self._MAX_RESULTS
+                break
+
             videos += [ (entry['yt$position']['$t'], entry['content']['src'])
                         for entry in response['feed']['entry']
                         if 'content' in entry ]
@@ -1775,37 +1732,31 @@ class YoutubePlaylistIE(InfoExtractor):
             page_num += 1
 
         videos = [v[1] for v in sorted(videos)]
-        total = len(videos)
-
-        playliststart = self._downloader.params.get('playliststart', 1) - 1
-        playlistend = self._downloader.params.get('playlistend', -1)
-        if playlistend == -1:
-            videos = videos[playliststart:]
-        else:
-            videos = videos[playliststart:playlistend]
-
-        if len(videos) == total:
-            self._downloader.to_screen(u'[youtube] PL %s: Found %i videos' % (playlist_id, total))
-        else:
-            self._downloader.to_screen(u'[youtube] PL %s: Found %i videos, downloading %i' % (playlist_id, total, len(videos)))
 
-        for video in videos:
-            self._downloader.download([video])
-        return
+        url_results = [self.url_result(url, 'Youtube') for url in videos]
+        return [self.playlist_result(url_results, playlist_id, playlist_title)]
 
 
 class YoutubeChannelIE(InfoExtractor):
     """Information Extractor for YouTube channels."""
 
-    _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)(?:/.*)?$"
+    _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
     _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
-    _MORE_PAGES_INDICATOR = u"Next \N{RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK}"
+    _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
+    _MORE_PAGES_URL = 'http://www.youtube.com/channel_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
     IE_NAME = u'youtube:channel'
 
     def report_download_page(self, channel_id, pagenum):
         """Report attempt to download channel page with given number."""
         self._downloader.to_screen(u'[youtube] Channel %s: Downloading page #%s' % (channel_id, pagenum))
 
+    def extract_videos_from_page(self, page):
+        ids_in_page = []
+        for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
+            if mobj.group(1) not in ids_in_page:
+                ids_in_page.append(mobj.group(1))
+        return ids_in_page
+
     def _real_extract(self, url):
         # Extract channel id
         mobj = re.match(self._VALID_URL, url)
@@ -1813,37 +1764,51 @@ class YoutubeChannelIE(InfoExtractor):
             self._downloader.report_error(u'invalid url: %s' % url)
             return
 
-        # Download channel pages
+        # Download channel page
         channel_id = mobj.group(1)
         video_ids = []
         pagenum = 1
 
-        while True:
-            self.report_download_page(channel_id, pagenum)
-            url = self._TEMPLATE_URL % (channel_id, pagenum)
-            request = compat_urllib_request.Request(url)
-            try:
-                page = compat_urllib_request.urlopen(request).read().decode('utf8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+        self.report_download_page(channel_id, pagenum)
+        url = self._TEMPLATE_URL % (channel_id, pagenum)
+        request = compat_urllib_request.Request(url)
+        try:
+            page = compat_urllib_request.urlopen(request).read().decode('utf8')
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
+            return
 
-            # Extract video identifiers
-            ids_in_page = []
-            for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&', page):
-                if mobj.group(1) not in ids_in_page:
-                    ids_in_page.append(mobj.group(1))
-            video_ids.extend(ids_in_page)
+        # Extract video identifiers
+        ids_in_page = self.extract_videos_from_page(page)
+        video_ids.extend(ids_in_page)
 
-            if self._MORE_PAGES_INDICATOR not in page:
-                break
-            pagenum = pagenum + 1
+        # Download any subsequent channel pages using the json-based channel_ajax query
+        if self._MORE_PAGES_INDICATOR in page:
+            while True:
+                pagenum = pagenum + 1
+
+                self.report_download_page(channel_id, pagenum)
+                url = self._MORE_PAGES_URL % (pagenum, channel_id)
+                request = compat_urllib_request.Request(url)
+                try:
+                    page = compat_urllib_request.urlopen(request).read().decode('utf8')
+                except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                    self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
+                    return
+
+                page = json.loads(page)
+
+                ids_in_page = self.extract_videos_from_page(page['content_html'])
+                video_ids.extend(ids_in_page)
+
+                if self._MORE_PAGES_INDICATOR  not in page['load_more_widget_html']:
+                    break
 
         self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
 
-        for id in video_ids:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
-        return
+        urls = ['http://www.youtube.com/watch?v=%s' % id for id in video_ids]
+        url_entries = [self.url_result(url, 'Youtube') for url in urls]
+        return [self.playlist_result(url_entries, channel_id)]
 
 
 class YoutubeUserIE(InfoExtractor):
@@ -1856,9 +1821,6 @@ class YoutubeUserIE(InfoExtractor):
     _VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
     IE_NAME = u'youtube:user'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_page(self, username, start_index):
         """Report attempt to download user page."""
         self._downloader.to_screen(u'[youtube] user %s: Downloading video ids from %d to %d' %
@@ -1913,20 +1875,9 @@ class YoutubeUserIE(InfoExtractor):
 
             pagenum += 1
 
-        all_ids_count = len(video_ids)
-        playliststart = self._downloader.params.get('playliststart', 1) - 1
-        playlistend = self._downloader.params.get('playlistend', -1)
-
-        if playlistend == -1:
-            video_ids = video_ids[playliststart:]
-        else:
-            video_ids = video_ids[playliststart:playlistend]
-
-        self._downloader.to_screen(u"[youtube] user %s: Collected %d video ids (downloading %d of them)" %
-                (username, all_ids_count, len(video_ids)))
-
-        for video_id in video_ids:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % video_id])
+        urls = ['http://www.youtube.com/watch?v=%s' % video_id for video_id in video_ids]
+        url_results = [self.url_result(url, 'Youtube') for url in urls]
+        return [self.playlist_result(url_results, playlist_title = username)]
 
 
 class BlipTVUserIE(InfoExtractor):
@@ -1936,13 +1887,10 @@ class BlipTVUserIE(InfoExtractor):
     _PAGE_SIZE = 12
     IE_NAME = u'blip.tv:user'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_page(self, username, pagenum):
         """Report attempt to download user page."""
-        self._downloader.to_screen(u'[%s] user %s: Downloading video ids from page %d' %
-                (self.IE_NAME, username, pagenum))
+        self.to_screen(u'user %s: Downloading video ids from page %d' %
+                (username, pagenum))
 
     def _real_extract(self, url):
         # Extract username
@@ -2004,20 +1952,9 @@ class BlipTVUserIE(InfoExtractor):
 
             pagenum += 1
 
-        all_ids_count = len(video_ids)
-        playliststart = self._downloader.params.get('playliststart', 1) - 1
-        playlistend = self._downloader.params.get('playlistend', -1)
-
-        if playlistend == -1:
-            video_ids = video_ids[playliststart:]
-        else:
-            video_ids = video_ids[playliststart:playlistend]
-
-        self._downloader.to_screen(u"[%s] user %s: Collected %d video ids (downloading %d of them)" %
-                (self.IE_NAME, username, all_ids_count, len(video_ids)))
-
-        for video_id in video_ids:
-            self._downloader.download([u'http://blip.tv/'+video_id])
+        urls = [u'http://blip.tv/%s' % video_id for video_id in video_ids]
+        url_entries = [self.url_result(url, 'BlipTV') for url in urls]
+        return [self.playlist_result(url_entries, playlist_title = username)]
 
 
 class DepositFilesIE(InfoExtractor):
@@ -2025,14 +1962,6 @@ class DepositFilesIE(InfoExtractor):
 
     _VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles\.com/(?:../(?#locale))?files/(.+)'
 
-    def report_download_webpage(self, file_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[DepositFiles] %s: Downloading webpage' % file_id)
-
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[DepositFiles] %s: Extracting information' % file_id)
-
     def _real_extract(self, url):
         file_id = url.split('/')[-1]
         # Rebuild url in english locale
@@ -2090,7 +2019,7 @@ class FacebookIE(InfoExtractor):
 
     def report_login(self):
         """Report attempt to log in."""
-        self._downloader.to_screen(u'[%s] Logging in' % self.IE_NAME)
+        self.to_screen(u'Logging in')
 
     def _real_initialize(self):
         if self._downloader is None:
@@ -2146,7 +2075,7 @@ class FacebookIE(InfoExtractor):
         url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
         webpage = self._download_webpage(url, video_id)
 
-        BEFORE = '[["allowFullScreen","true"],["allowScriptAccess","always"],["salign","tl"],["scale","noscale"],["wmode","opaque"]].forEach(function(param) {swf.addParam(param[0], param[1]);});\n'
+        BEFORE = '{swf.addParam(param[0], param[1]);});\n'
         AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
         m = re.search(re.escape(BEFORE) + '(.*?)' + re.escape(AFTER), webpage)
         if not m:
@@ -2154,12 +2083,14 @@ class FacebookIE(InfoExtractor):
         data = dict(json.loads(m.group(1)))
         params_raw = compat_urllib_parse.unquote(data['params'])
         params = json.loads(params_raw)
-        video_url = params['hd_src']
+        video_data = params['video_data'][0]
+        video_url = video_data.get('hd_src')
         if not video_url:
-            video_url = params['sd_src']
+            video_url = video_data['sd_src']
         if not video_url:
             raise ExtractorError(u'Cannot find video URL')
-        video_duration = int(params['video_duration'])
+        video_duration = int(video_data['video_duration'])
+        thumbnail = video_data['thumbnail_src']
 
         m = re.search('<h2 class="uiHeaderTitle">([^<]+)</h2>', webpage)
         if not m:
@@ -2172,7 +2103,7 @@ class FacebookIE(InfoExtractor):
             'url': video_url,
             'ext': 'mp4',
             'duration': video_duration,
-            'thumbnail': params['thumbnail_src'],
+            'thumbnail': thumbnail,
         }
         return [info]
 
@@ -2184,13 +2115,9 @@ class BlipTVIE(InfoExtractor):
     _URL_EXT = r'^.*\.([a-z0-9]+)$'
     IE_NAME = u'blip.tv'
 
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
     def report_direct_download(self, title):
         """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Direct download detected' % (self.IE_NAME, title))
+        self.to_screen(u'%s: Direct download detected' % title)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
@@ -2285,13 +2212,6 @@ class MyVideoIE(InfoExtractor):
     _VALID_URL = r'(?:http://)?(?:www\.)?myvideo\.de/watch/([0-9]+)/([^?/]+).*'
     IE_NAME = u'myvideo'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[myvideo] %s: Extracting information' % video_id)
-
     def _real_extract(self,url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
@@ -2305,7 +2225,7 @@ class MyVideoIE(InfoExtractor):
         webpage = self._download_webpage(webpage_url, video_id)
 
         self.report_extraction(video_id)
-        mobj = re.search(r'<link rel=\'image_src\' href=\'(http://is[0-9].myvideo\.de/de/movie[0-9]+/[a-f0-9]+)/thumbs/.*?\.jpg\' />',
+        mobj = re.search(r'<link rel=\'image_src\' href=\'(http://is[0-9].myvideo\.de/de/movie[0-9]+/[a-f0-9]+)/thumbs/.*?\.jpg\'',
                  webpage)
         if mobj is None:
             self._downloader.report_error(u'unable to extract media URL')
@@ -2369,14 +2289,11 @@ class ComedyCentralIE(InfoExtractor):
         """Receives a URL and returns True if suitable for this IE."""
         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
 
-    def report_extraction(self, episode_id):
-        self._downloader.to_screen(u'[comedycentral] %s: Extracting information' % episode_id)
-
     def report_config_download(self, episode_id, media_id):
-        self._downloader.to_screen(u'[comedycentral] %s: Downloading configuration for %s' % (episode_id, media_id))
+        self.to_screen(u'%s: Downloading configuration for %s' % (episode_id, media_id))
 
     def report_index_download(self, episode_id):
-        self._downloader.to_screen(u'[comedycentral] %s: Downloading show index' % episode_id)
+        self.to_screen(u'%s: Downloading show index' % episode_id)
 
     def _print_formats(self, formats):
         print('Available formats:')
@@ -2463,7 +2380,7 @@ class ComedyCentralIE(InfoExtractor):
             shortMediaId = mediaId.split(':')[-1]
             showId = mediaId.split(':')[-2].replace('.com', '')
             officialTitle = itemEl.findall('./title')[0].text
-            officialDate = itemEl.findall('./pubDate')[0].text
+            officialDate = unified_strdate(itemEl.findall('./pubDate')[0].text)
 
             configUrl = ('http://www.comedycentral.com/global/feeds/entertainment/media/mediaGenEntertainment.jhtml?' +
                         compat_urllib_parse.urlencode({'uri': mediaId}))
@@ -2530,11 +2447,8 @@ class EscapistIE(InfoExtractor):
     _VALID_URL = r'^(https?://)?(www\.)?escapistmagazine\.com/videos/view/(?P<showname>[^/]+)/(?P<episode>[^/?]+)[/?]?.*$'
     IE_NAME = u'escapist'
 
-    def report_extraction(self, showName):
-        self._downloader.to_screen(u'[escapist] %s: Extracting information' % showName)
-
     def report_config_download(self, showName):
-        self._downloader.to_screen(u'[escapist] %s: Downloading configuration' % showName)
+        self.to_screen(u'%s: Downloading configuration' % showName)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
@@ -2607,11 +2521,7 @@ class CollegeHumorIE(InfoExtractor):
 
     def report_manifest(self, video_id):
         """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Downloading XML manifest' % (self.IE_NAME, video_id))
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+        self.to_screen(u'%s: Downloading XML manifest' % video_id)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
@@ -2676,10 +2586,6 @@ class XVideosIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?xvideos\.com/video([0-9]+)(?:.*)'
     IE_NAME = u'xvideos'
 
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
@@ -2741,16 +2647,9 @@ class SoundcloudIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/([\w\d-]+)'
     IE_NAME = u'soundcloud'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_resolve(self, video_id):
         """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Resolving id' % (self.IE_NAME, video_id))
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Retrieving stream' % (self.IE_NAME, video_id))
+        self.to_screen(u'%s: Resolving id' % video_id)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
@@ -2791,26 +2690,97 @@ class SoundcloudIE(InfoExtractor):
 
         streams = json.loads(stream_json)
         mediaURL = streams['http_mp3_128_url']
+        upload_date = unified_strdate(info['created_at'])
 
         return [{
             'id':       info['id'],
             'url':      mediaURL,
             'uploader': info['user']['username'],
-            'upload_date':  info['created_at'],
+            'upload_date': upload_date,
             'title':    info['title'],
             'ext':      u'mp3',
             'description': info['description'],
         }]
 
+class SoundcloudSetIE(InfoExtractor):
+    """Information extractor for soundcloud.com sets
+       To access the media, the uid of the song and a stream token
+       must be extracted from the page source and the script must make
+       a request to media.soundcloud.com/crossdomain.xml. Then
+       the media can be grabbed by requesting from an url composed
+       of the stream token and uid
+     """
+
+    _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/sets/([\w\d-]+)'
+    IE_NAME = u'soundcloud:set'
+
+    def report_resolve(self, video_id):
+        """Report information extraction."""
+        self.to_screen(u'%s: Resolving id' % video_id)
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.report_error(u'invalid URL: %s' % url)
+            return
+
+        # extract uploader (which is in the url)
+        uploader = mobj.group(1)
+        # extract simple title (uploader + slug of song title)
+        slug_title =  mobj.group(2)
+        simple_title = uploader + u'-' + slug_title
+
+        self.report_resolve('%s/sets/%s' % (uploader, slug_title))
+
+        url = 'http://soundcloud.com/%s/sets/%s' % (uploader, slug_title)
+        resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
+        request = compat_urllib_request.Request(resolv_url)
+        try:
+            info_json_bytes = compat_urllib_request.urlopen(request).read()
+            info_json = info_json_bytes.decode('utf-8')
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.report_error(u'unable to download video webpage: %s' % compat_str(err))
+            return
+
+        videos = []
+        info = json.loads(info_json)
+        if 'errors' in info:
+            for err in info['errors']:
+                self._downloader.report_error(u'unable to download video webpage: %s' % compat_str(err['error_message']))
+            return
+
+        for track in info['tracks']:
+            video_id = track['id']
+            self.report_extraction('%s/sets/%s' % (uploader, slug_title))
+
+            streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
+            request = compat_urllib_request.Request(streams_url)
+            try:
+                stream_json_bytes = compat_urllib_request.urlopen(request).read()
+                stream_json = stream_json_bytes.decode('utf-8')
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.report_error(u'unable to download stream definitions: %s' % compat_str(err))
+                return
+
+            streams = json.loads(stream_json)
+            mediaURL = streams['http_mp3_128_url']
+
+            videos.append({
+                'id':       video_id,
+                'url':      mediaURL,
+                'uploader': track['user']['username'],
+                'upload_date':  track['created_at'],
+                'title':    track['title'],
+                'ext':      u'mp3',
+                'description': track['description'],
+            })
+        return videos
+
 
 class InfoQIE(InfoExtractor):
     """Information extractor for infoq.com"""
     _VALID_URL = r'^(?:https?://)?(?:www\.)?infoq\.com/[^/]+/[^/]+$'
 
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
@@ -2821,7 +2791,7 @@ class InfoQIE(InfoExtractor):
         self.report_extraction(url)
 
         # Extract video URL
-        mobj = re.search(r"jsclassref='([^']*)'", webpage)
+        mobj = re.search(r"jsclassref ?= ?'([^']*)'", webpage)
         if mobj is None:
             self._downloader.report_error(u'unable to extract video url')
             return
@@ -2864,16 +2834,9 @@ class MixcloudIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?mixcloud\.com/([\w\d-]+)/([\w\d-]+)'
     IE_NAME = u'mixcloud'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_json(self, file_id):
         """Report JSON download."""
-        self._downloader.to_screen(u'[%s] Downloading json' % self.IE_NAME)
-
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
+        self.to_screen(u'Downloading json')
 
     def get_urls(self, jsonData, fmt, bitrate='best'):
         """Get urls from 'audio_formats' section in json"""
@@ -2978,14 +2941,6 @@ class StanfordOpenClassroomIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?openclassroom.stanford.edu(?P<path>/?|(/MainFolder/(?:HomePage|CoursePage|VideoPage)\.php([?]course=(?P<course>[^&]+)(&video=(?P<video>[^&]+))?(&.*)?)?))$'
     IE_NAME = u'stanfordoc'
 
-    def report_download_webpage(self, objid):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, objid))
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
@@ -3090,10 +3045,6 @@ class MTVIE(InfoExtractor):
     _VALID_URL = r'^(?P<proto>https?://)?(?:www\.)?mtv\.com/videos/[^/]+/(?P<videoid>[0-9]+)/[^/]+$'
     IE_NAME = u'mtv'
 
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
@@ -3149,7 +3100,7 @@ class MTVIE(InfoExtractor):
             format = ext + '-' + rendition.attrib['width'] + 'x' + rendition.attrib['height'] + '_' + rendition.attrib['bitrate']
             video_url = rendition.find('./src').text
         except KeyError:
-            self._downloader.trouble('Invalid rendition field.')
+            self._downloader.report_error('Invalid rendition field.')
             return
 
         info = {
@@ -3168,14 +3119,6 @@ class MTVIE(InfoExtractor):
 class YoukuIE(InfoExtractor):
     _VALID_URL =  r'(?:http://)?v\.youku\.com/v_show/id_(?P<ID>[A-Za-z0-9]+)\.html'
 
-    def report_download_webpage(self, file_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, file_id))
-
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
     def _gen_sid(self):
         nowTime = int(time.time() * 1000)
         random1 = random.randint(1000,1998)
@@ -3285,14 +3228,6 @@ class XNXXIE(InfoExtractor):
     VIDEO_TITLE_RE = r'<title>(.*?)\s+-\s+XNXX.COM'
     VIDEO_THUMB_RE = r'url_bigthumb=(.*?)&amp;'
 
-    def report_webpage(self, video_id):
-        """Report information extraction"""
-        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
-
-    def report_extraction(self, video_id):
-        """Report information extraction"""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
@@ -3300,7 +3235,7 @@ class XNXXIE(InfoExtractor):
             return
         video_id = mobj.group(1)
 
-        self.report_webpage(video_id)
+        self.report_download_webpage(video_id)
 
         # Get webpage content
         try:
@@ -3346,28 +3281,25 @@ class GooglePlusIE(InfoExtractor):
     _VALID_URL = r'(?:https://)?plus\.google\.com/(?:[^/]+/)*?posts/(\w+)'
     IE_NAME = u'plus.google'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_extract_entry(self, url):
         """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Downloading entry: %s' % url)
+        self.to_screen(u'Downloading entry: %s' % url)
 
     def report_date(self, upload_date):
         """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Entry date: %s' % upload_date)
+        self.to_screen(u'Entry date: %s' % upload_date)
 
     def report_uploader(self, uploader):
         """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Uploader: %s' % uploader)
+        self.to_screen(u'Uploader: %s' % uploader)
 
     def report_title(self, video_title):
         """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Title: %s' % video_title)
+        self.to_screen(u'Title: %s' % video_title)
 
     def report_extract_vid_page(self, video_page):
         """Report information extraction."""
-        self._downloader.to_screen(u'[plus.google] Extracting video page: %s' % video_page)
+        self.to_screen(u'Extracting video page: %s' % video_page)
 
     def _real_extract(self, url):
         # Extract id from URL
@@ -3511,14 +3443,10 @@ class JustinTVIE(InfoExtractor):
     _JUSTIN_PAGE_LIMIT = 100
     IE_NAME = u'justin.tv'
 
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
     def report_download_page(self, channel, offset):
         """Report attempt to download a single page of videos."""
-        self._downloader.to_screen(u'[%s] %s: Downloading video information from %d to %d' %
-                (self.IE_NAME, channel, offset, offset + self._JUSTIN_PAGE_LIMIT))
+        self.to_screen(u'%s: Downloading video information from %d to %d' %
+                (channel, offset, offset + self._JUSTIN_PAGE_LIMIT))
 
     # Return count of items, list of *valid* items
     def _parse_page(self, url):
@@ -3604,10 +3532,12 @@ class FunnyOrDieIE(InfoExtractor):
             self._downloader.report_error(u'unable to find video information')
         video_url = unescapeHTML(m.group('url'))
 
-        m = re.search(r"class='player_page_h1'>\s+<a.*?>(?P<title>.*?)</a>", webpage)
+        m = re.search(r"<h1 class='player_page_h1'.*?>(?P<title>.*?)</h1>", webpage, flags=re.DOTALL)
         if not m:
-            self._downloader.trouble(u'Cannot find video title')
-        title = unescapeHTML(m.group('title'))
+            m = re.search(r'<title>(?P<title>[^<]+?)</title>', webpage)
+            if not m:
+                self._downloader.report_error(u'Cannot find video title')
+        title = clean_html(m.group('title'))
 
         m = re.search(r'<meta property="og:description" content="(?P<desc>.*?)"', webpage)
         if m:
@@ -3626,6 +3556,7 @@ class FunnyOrDieIE(InfoExtractor):
 
 class SteamIE(InfoExtractor):
     _VALID_URL = r"""http://store.steampowered.com/
+                (agecheck/)?
                 (?P<urltype>video|app)/ #If the page is only for videos or for a game
                 (?P<gameID>\d+)/?
                 (?P<videoID>\d*)(?P<extra>\??) #For urltype == video we sometimes get the videoID
@@ -3638,10 +3569,13 @@ class SteamIE(InfoExtractor):
 
     def _real_extract(self, url):
         m = re.match(self._VALID_URL, url, re.VERBOSE)
-        urlRE = r"'movie_(?P<videoID>\d+)': \{\s*FILENAME: \"(?P<videoURL>[\w:/\.\?=]+)\"(,\s*MOVIE_NAME: \"(?P<videoName>[\w:/\.\?=\+-]+)\")?\s*\},"
         gameID = m.group('gameID')
-        videourl = 'http://store.steampowered.com/video/%s/' % gameID
+        videourl = 'http://store.steampowered.com/agecheck/video/%s/?snr=1_agecheck_agecheck__age-gate&ageDay=1&ageMonth=January&ageYear=1970' % gameID
+        self.report_age_confirmation()
         webpage = self._download_webpage(videourl, gameID)
+        game_title = re.search(r'<h2 class="pageheader">(?P<game_title>.*?)</h2>', webpage).group('game_title')
+        
+        urlRE = r"'movie_(?P<videoID>\d+)': \{\s*FILENAME: \"(?P<videoURL>[\w:/\.\?=]+)\"(,\s*MOVIE_NAME: \"(?P<videoName>[\w:/\.\?=\+-]+)\")?\s*\},"
         mweb = re.finditer(urlRE, webpage)
         namesRE = r'<span class="title">(?P<videoName>.+?)</span>'
         titles = re.finditer(namesRE, webpage)
@@ -3663,7 +3597,7 @@ class SteamIE(InfoExtractor):
                 'thumbnail': video_thumb
                   }
             videos.append(info)
-        return videos
+        return [self.playlist_result(videos, gameID, game_title)]
 
 class UstreamIE(InfoExtractor):
     _VALID_URL = r'https?://www\.ustream\.tv/recorded/(?P<videoID>\d+)'
@@ -3687,6 +3621,62 @@ class UstreamIE(InfoExtractor):
                   }
         return [info]
 
+class WorldStarHipHopIE(InfoExtractor):
+    _VALID_URL = r'http://(?:www|m)\.worldstar(?:candy|hiphop)\.com/videos/video\.php\?v=(?P<id>.*)'
+    IE_NAME = u'WorldStarHipHop'
+
+    def _real_extract(self, url):
+        _src_url = r"""(http://hw-videos.*(?:mp4|flv))"""
+
+        webpage_src = compat_urllib_request.urlopen(url).read()
+        webpage_src = webpage_src.decode('utf-8')
+
+        mobj = re.search(_src_url, webpage_src)
+
+        m = re.match(self._VALID_URL, url)
+        video_id = m.group('id')
+
+        if mobj is not None:
+            video_url = mobj.group()
+            if 'mp4' in video_url:
+                ext = 'mp4'
+            else:
+                ext = 'flv'
+        else:
+            self._downloader.report_error(u'Cannot find video url for %s' % video_id)
+            return
+
+        _title = r"""<title>(.*)</title>"""
+
+        mobj = re.search(_title, webpage_src)
+
+        if mobj is not None:
+            title = mobj.group(1)
+        else:
+            title = 'World Start Hip Hop - %s' % time.ctime()
+
+        _thumbnail = r"""rel="image_src" href="(.*)" />"""
+        mobj = re.search(_thumbnail, webpage_src)
+
+        # Getting thumbnail and if not thumbnail sets correct title for WSHH candy video.
+        if mobj is not None:
+            thumbnail = mobj.group(1)
+        else:
+            _title = r"""candytitles.*>(.*)</span>"""
+            mobj = re.search(_title, webpage_src)
+            if mobj is not None:
+                title = mobj.group(1)
+            thumbnail = None
+
+        results = [{
+                    'id': video_id,
+                    'url' : video_url,
+                    'title' : title,
+                    'thumbnail' : thumbnail,
+                    'ext' : ext,
+                    }]
+        return results
+
 class RBMARadioIE(InfoExtractor):
     _VALID_URL = r'https?://(?:www\.)?rbmaradio\.com/shows/(?P<videoID>[^/]+)$'
 
@@ -3765,7 +3755,7 @@ class YouPornIE(InfoExtractor):
             self._downloader.report_warning(u'unable to extract video date')
             upload_date = None
         else:
-            upload_date = result.group('date').strip()
+            upload_date = unified_strdate(result.group('date').strip())
 
         # Get the video uploader
         result = re.search(r'Submitted:</label>(?P<uploader>.*)</li>', webpage)
@@ -3789,7 +3779,7 @@ class YouPornIE(InfoExtractor):
         if(len(links) == 0):
             raise ExtractorError(u'ERROR: no known formats available for video')
 
-        self._downloader.to_screen(u'[youporn] Links found: %d' % len(links))
+        self.to_screen(u'Links found: %d' % len(links))
 
         formats = []
         for link in links:
@@ -3825,7 +3815,7 @@ class YouPornIE(InfoExtractor):
             return
 
         req_format = self._downloader.params.get('format', None)
-        self._downloader.to_screen(u'[youporn] Format: %s' % req_format)
+        self.to_screen(u'Format: %s' % req_format)
 
         if req_format is None or req_format == 'best':
             return [formats[0]]
@@ -3872,7 +3862,7 @@ class PornotubeIE(InfoExtractor):
         if result is None:
             self._downloader.report_error(u'unable to extract video title')
             return
-        upload_date = result.group('date')
+        upload_date = unified_strdate(result.group('date'))
 
         info = {'id': video_id,
                 'url': video_url,
@@ -3984,7 +3974,7 @@ class KeekIE(InfoExtractor):
         video_url = u'http://cdn.keek.com/keek/video/%s' % video_id
         thumbnail = u'http://cdn.keek.com/keek/thumbnail/%s/w100/h75' % video_id
         webpage = self._download_webpage(url, video_id)
-        m = re.search(r'<meta property="og:title" content="(?P<title>.+)"', webpage)
+        m = re.search(r'<meta property="og:title" content="(?P<title>.*?)"', webpage)
         title = unescapeHTML(m.group('title'))
         m = re.search(r'<div class="user-name-and-bio">[\S\s]+?<h2>(?P<uploader>.+?)</h2>', webpage)
         uploader = clean_html(m.group('uploader'))
@@ -4020,8 +4010,8 @@ class TEDIE(InfoExtractor):
         else :
             playlist_id=m.group('playlist_id')
             name=m.group('name')
-            self._downloader.to_screen(u'[%s] Getting info of playlist %s: "%s"' % (self.IE_NAME,playlist_id,name))
-            return self._playlist_videos_info(url,name,playlist_id)
+            self.to_screen(u'Getting info of playlist %s: "%s"' % (playlist_id,name))
+            return [self._playlist_videos_info(url,name,playlist_id)]
 
     def _talk_video_link(self,mediaSlug):
         '''Returns the video link for that mediaSlug'''
@@ -4038,12 +4028,17 @@ class TEDIE(InfoExtractor):
         webpage=self._download_webpage(url, playlist_id, 'Downloading playlist webpage')
         m_videos=re.finditer(video_RE,webpage,re.VERBOSE)
         m_names=re.finditer(video_name_RE,webpage)
-        info=[]
+
+        playlist_RE = r'div class="headline">(\s*?)<h1>(\s*?)<span>(?P<playlist_title>.*?)</span>'
+        m_playlist = re.search(playlist_RE, webpage)
+        playlist_title = m_playlist.group('playlist_title')
+
+        playlist_entries = []
         for m_video, m_name in zip(m_videos,m_names):
             video_id=m_video.group('video_id')
             talk_url='http://www.ted.com%s' % m_name.group('talk_url')
-            info.append(self._talk_info(talk_url,video_id))
-        return info
+            playlist_entries.append(self.url_result(talk_url, 'TED'))
+        return self.playlist_result(playlist_entries, playlist_id = playlist_id, playlist_title = playlist_title)
 
     def _talk_info(self, url, video_id=0):
         """Return the video for the talk in the url"""
@@ -4051,7 +4046,7 @@ class TEDIE(InfoExtractor):
         videoName=m.group('name')
         webpage=self._download_webpage(url, video_id, 'Downloading \"%s\" page' % videoName)
         # If the url includes the language we get the title translated
-        title_RE=r'<h1><span id="altHeadline" >(?P<title>.*)</span></h1>'
+        title_RE=r'<span id="altHeadline" >(?P<title>.*)</span>'
         title=re.search(title_RE, webpage).group('title')
         info_RE=r'''<script\ type="text/javascript">var\ talkDetails\ =(.*?)
                         "id":(?P<videoID>[\d]+).*?
@@ -4128,7 +4123,7 @@ class MySpassIE(InfoExtractor):
         return [info]
 
 class SpiegelIE(InfoExtractor):
-    _VALID_URL = r'https?://(?:www\.)?spiegel\.de/video/[^/]*-(?P<videoID>[0-9]+)(?:\.html)?(?:#.*)$'
+    _VALID_URL = r'https?://(?:www\.)?spiegel\.de/video/[^/]*-(?P<videoID>[0-9]+)(?:\.html)?(?:#.*)?$'
 
     def _real_extract(self, url):
         m = re.match(self._VALID_URL, url)
@@ -4160,6 +4155,129 @@ class SpiegelIE(InfoExtractor):
         }
         return [info]
 
+class LiveLeakIE(InfoExtractor):
+
+    _VALID_URL = r'^(?:http?://)?(?:\w+\.)?liveleak\.com/view\?(?:.*?)i=(?P<video_id>[\w_]+)(?:.*)'
+    IE_NAME = u'liveleak'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.report_error(u'invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group('video_id')
+
+        webpage = self._download_webpage(url, video_id)
+
+        m = re.search(r'file: "(.*?)",', webpage)
+        if not m:
+            self._downloader.report_error(u'unable to find video url')
+            return
+        video_url = m.group(1)
+
+        m = re.search(r'<meta property="og:title" content="(?P<title>.*?)"', webpage)
+        if not m:
+            self._downloader.report_error(u'Cannot find video title')
+        title = unescapeHTML(m.group('title')).replace('LiveLeak.com -', '').strip()
+
+        m = re.search(r'<meta property="og:description" content="(?P<desc>.*?)"', webpage)
+        if m:
+            desc = unescapeHTML(m.group('desc'))
+        else:
+            desc = None
+
+        m = re.search(r'By:.*?(\w+)</a>', webpage)
+        if m:
+            uploader = clean_html(m.group(1))
+        else:
+            uploader = None
+
+        info = {
+            'id':  video_id,
+            'url': video_url,
+            'ext': 'mp4',
+            'title': title,
+            'description': desc,
+            'uploader': uploader
+        }
+
+        return [info]
+
+class ARDIE(InfoExtractor):
+    _VALID_URL = r'^(?:https?://)?(?:(?:www\.)?ardmediathek\.de|mediathek\.daserste\.de)/(?:.*/)(?P<video_id>[^/\?]+)(?:\?.*)?'
+    _TITLE = r'<h1(?: class="boxTopHeadline")?>(?P<title>.*)</h1>'
+    _MEDIA_STREAM = r'mediaCollection\.addMediaStream\((?P<media_type>\d+), (?P<quality>\d+), "(?P<rtmp_url>[^"]*)", "(?P<video_url>[^"]*)", "[^"]*"\)'
+
+    def _real_extract(self, url):
+        # determine video id from url
+        m = re.match(self._VALID_URL, url)
+
+        numid = re.search(r'documentId=([0-9]+)', url)
+        if numid:
+            video_id = numid.group(1)
+        else:
+            video_id = m.group('video_id')
+
+        # determine title and media streams from webpage
+        html = self._download_webpage(url, video_id)
+        title = re.search(self._TITLE, html).group('title')
+        streams = [m.groupdict() for m in re.finditer(self._MEDIA_STREAM, html)]
+        if not streams:
+            assert '"fsk"' in html
+            self._downloader.report_error(u'this video is only available after 8:00 pm')
+            return
+
+        # choose default media type and highest quality for now
+        stream = max([s for s in streams if int(s["media_type"]) == 0],
+                     key=lambda s: int(s["quality"]))
+
+        # there's two possibilities: RTMP stream or HTTP download
+        info = {'id': video_id, 'title': title, 'ext': 'mp4'}
+        if stream['rtmp_url']:
+            self.to_screen(u'RTMP download detected')
+            assert stream['video_url'].startswith('mp4:')
+            info["url"] = stream["rtmp_url"]
+            info["play_path"] = stream['video_url']
+        else:
+            assert stream["video_url"].endswith('.mp4')
+            info["url"] = stream["video_url"]
+        return [info]
+
+class TumblrIE(InfoExtractor):
+    _VALID_URL = r'http://(?P<blog_name>.*?).tumblr.com/((post)|(video))/(?P<id>\d*)/(.*?)'
+
+    def _real_extract(self, url):
+        m_url = re.match(self._VALID_URL, url)
+        video_id = m_url.group('id')
+        blog = m_url.group('blog_name')
+
+        url = 'http://%s.tumblr.com/post/%s/' % (blog, video_id)
+        webpage = self._download_webpage(url, video_id)
+
+        re_video = r'src=\\x22(?P<video_url>http://%s.tumblr.com/video_file/%s/(.*?))\\x22 type=\\x22video/(?P<ext>.*?)\\x22' % (blog, video_id)
+        video = re.search(re_video, webpage)
+        if video is None:
+            self.to_screen("No video founded")
+            return []
+        video_url = video.group('video_url')
+        ext = video.group('ext')
+
+        re_thumb = r'posters(.*?)\[\\x22(?P<thumb>.*?)\\x22'  # We pick the first poster
+        thumb = re.search(re_thumb, webpage).group('thumb').replace('\\', '')
+
+        # The only place where you can get a title, it's not complete,
+        # but searching in other places doesn't work for all videos
+        re_title = r'<title>(.*?) - (?P<title>.*?)</title>'
+        title = unescapeHTML(re.search(re_title, webpage).group('title'))
+
+        return [{'id': video_id,
+                 'url': video_url,
+                 'title': title,
+                 'thumbnail': thumb,
+                 'ext': ext
+                 }]
+
 
 def gen_extractors():
     """ Return a list of an instance of every supported extractor.
@@ -4187,6 +4305,7 @@ def gen_extractors():
         EscapistIE(),
         CollegeHumorIE(),
         XVideosIE(),
+        SoundcloudSetIE(),
         SoundcloudIE(),
         InfoQIE(),
         MixcloudIE(),
@@ -4200,6 +4319,7 @@ def gen_extractors():
         GooglePlusIE(),
         ArteTvIE(),
         NBAIE(),
+        WorldStarHipHopIE(),
         JustinTVIE(),
         FunnyOrDieIE(),
         SteamIE(),
@@ -4210,7 +4330,12 @@ def gen_extractors():
         TEDIE(),
         MySpassIE(),
         SpiegelIE(),
+        LiveLeakIE(),
+        ARDIE(),
+        TumblrIE(),
         GenericIE()
     ]
 
-
+def get_info_extractor(ie_name):
+    """Returns the info extractor class with the given ie_name"""
+    return globals()[ie_name+'IE']