X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2FInfoExtractors.py;h=f69bad4f3a77d49be2d8b9cac3c6c256f4ee9898;hb=64c78d50ccf05f34e27b652530fc8b702aa54122;hp=3715bef5084ddfb9ce76e3525373ca806691c9ea;hpb=92e3e18a1d1fb35b6d73b609725c250123835969;p=youtube-dl

diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index 3715bef50..f69bad4f3 100755
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -3,7 +3,9 @@
 
 from __future__ import absolute_import
 
+import base64
 import datetime
+import itertools
 import netrc
 import os
 import re
@@ -13,6 +15,7 @@ import email.utils
 import xml.etree.ElementTree
 import random
 import math
+import operator
 
 from .utils import *
 
@@ -34,15 +37,16 @@ class InfoExtractor(object):
     url:            Final video URL.
     title:          Video title, unescaped.
     ext:            Video filename extension.
-    uploader:       Full name of the video uploader.
-    upload_date:    Video upload date (YYYYMMDD).
 
     The following fields are optional:
 
     format:         The video format, defaults to ext (used for --get-format)
     thumbnail:      Full URL to a video thumbnail image.
     description:    One-line video description.
+    uploader:       Full name of the video uploader.
+    upload_date:    Video upload date (YYYYMMDD).
     uploader_id:    Nickname or id of the video uploader.
+    location:       Physical location of the video.
     player_url:     SWF Player URL (used for rtmpdump).
     subtitles:      The .srt file contents.
     urlhandle:      [internal] The urlHandle to be used to download the file,
@@ -70,13 +74,15 @@ class InfoExtractor(object):
         self._ready = False
         self.set_downloader(downloader)
 
-    def suitable(self, url):
+    @classmethod
+    def suitable(cls, url):
         """Receives a URL and returns True if suitable for this IE."""
-        return re.match(self._VALID_URL, url) is not None
+        return re.match(cls._VALID_URL, url) is not None
 
-    def working(self):
+    @classmethod
+    def working(cls):
         """Getter method for _WORKING."""
-        return self._WORKING
+        return cls._WORKING
 
     def initialize(self):
         """Initializes an instance (authentication, etc)."""
@@ -105,6 +111,25 @@ class InfoExtractor(object):
     def IE_NAME(self):
         return type(self).__name__[:-2]
 
+    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))
+        try:
+            return compat_urllib_request.urlopen(url_or_request)
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            if errnote is None:
+                errnote = u'Unable to download webpage'
+            raise ExtractorError(u'%s: %s' % (errnote, compat_str(err)), sys.exc_info()[2])
+
+    def _download_webpage(self, url_or_request, video_id, note=None, errnote=None):
+        """ Returns the data of the page as a string """
+        urlh = self._request_webpage(url_or_request, video_id, note, errnote)
+        webpage_bytes = urlh.read()
+        return webpage_bytes.decode('utf-8', 'replace')
+
+
 class YoutubeIE(InfoExtractor):
     """Information extractor for youtube.com."""
 
@@ -114,7 +139,6 @@ class YoutubeIE(InfoExtractor):
                          (?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|
                             tube\.majestyc\.net/)                             # the various hostnames, with wildcard subdomains
                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
-                         (?!view_play_list|my_playlists|artist|playlist)      # ignore playlist URLs
                          (?:                                                  # the various things that can precede the ID:
                              (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
                              |(?:                                             # or the v= param in all its forms
@@ -129,7 +153,7 @@ class YoutubeIE(InfoExtractor):
                      (?(1).+)?                                                # if we found the ID, everything can follow
                      $"""
     _LANG_URL = r'http://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
-    _LOGIN_URL = 'https://www.youtube.com/signup?next=/&gl=US&hl=en'
+    _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
     _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
     _NETRC_MACHINE = 'youtube'
@@ -166,9 +190,11 @@ class YoutubeIE(InfoExtractor):
     }
     IE_NAME = u'youtube'
 
-    def suitable(self, url):
+    @classmethod
+    def suitable(cls, url):
         """Receives a URL and returns True if suitable for this IE."""
-        return re.match(self._VALID_URL, url, re.VERBOSE) is not None
+        if YoutubePlaylistIE.suitable(url): return False
+        return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
 
     def report_lang(self):
         """Report attempt to set language."""
@@ -242,13 +268,18 @@ class YoutubeIE(InfoExtractor):
             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))
+        params = compat_urllib_parse.urlencode({
+            'lang': srt_lang,
+            'name': srt_lang_list[srt_lang].encode('utf-8'),
+            'v': video_id,
+        })
+        url = 'http://www.youtube.com/api/timedtext?' + params
         try:
-            srt_xml = compat_urllib_request.urlopen(request).read().decode('utf-8')
+            srt_xml = 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)
         if not srt_xml:
-            return (u'WARNING: unable to download video subtitles', None)
+            return (u'WARNING: Did not fetch video subtitles', None)
         return (None, self._closed_captions_xml_to_srt(srt_xml))
 
     def _print_formats(self, formats):
@@ -277,7 +308,7 @@ class YoutubeIE(InfoExtractor):
                 else:
                     raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
             except (IOError, netrc.NetrcParseError) as err:
-                self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % compat_str(err))
+                self._downloader.report_warning(u'parsing .netrc: %s' % compat_str(err))
                 return
 
         # Set language
@@ -286,30 +317,65 @@ class YoutubeIE(InfoExtractor):
             self.report_lang()
             compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.to_stderr(u'WARNING: unable to set language: %s' % compat_str(err))
+            self._downloader.report_warning(u'unable to set language: %s' % compat_str(err))
             return
 
         # No authentication to be performed
         if username is None:
             return
 
+        request = compat_urllib_request.Request(self._LOGIN_URL)
+        try:
+            login_page = compat_urllib_request.urlopen(request).read().decode('utf-8')
+        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+            self._downloader.report_warning(u'unable to fetch login page: %s' % compat_str(err))
+            return
+
+        galx = None
+        dsh = None
+        match = re.search(re.compile(r'<input.+?name="GALX".+?value="(.+?)"', re.DOTALL), login_page)
+        if match:
+          galx = match.group(1)
+
+        match = re.search(re.compile(r'<input.+?name="dsh".+?value="(.+?)"', re.DOTALL), login_page)
+        if match:
+          dsh = match.group(1)
+
         # Log in
-        login_form = {
-                'current_form': 'loginForm',
-                'next':     '/',
-                'action_login': 'Log In',
-                'username': username,
-                'password': password,
-                }
-        request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
+        login_form_strs = {
+                u'continue': u'http://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
+                u'Email': username,
+                u'GALX': galx,
+                u'Passwd': password,
+                u'PersistentCookie': u'yes',
+                u'_utf8': u'霱',
+                u'bgresponse': u'js_disabled',
+                u'checkConnection': u'',
+                u'checkedDomains': u'youtube',
+                u'dnConn': u'',
+                u'dsh': dsh,
+                u'pstMsg': u'0',
+                u'rmShown': u'1',
+                u'secTok': u'',
+                u'signIn': u'Sign in',
+                u'timeStmp': u'',
+                u'service': u'youtube',
+                u'uilel': u'3',
+                u'hl': u'en_US',
+        }
+        # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
+        # chokes on unicode
+        login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
+        login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
+        request = compat_urllib_request.Request(self._LOGIN_URL, login_data)
         try:
             self.report_login()
             login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
-            if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
-                self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
+            if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
+                self._downloader.report_warning(u'unable to log in: bad username or password')
                 return
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.to_stderr(u'WARNING: unable to log in: %s' % compat_str(err))
+            self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
             return
 
         # Confirm age
@@ -397,7 +463,7 @@ class YoutubeIE(InfoExtractor):
 
         # uploader_id
         video_uploader_id = None
-        mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/user/([^"]+)">', video_webpage)
+        mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
         if mobj is not None:
             video_uploader_id = mobj.group(1)
         else:
@@ -656,14 +722,11 @@ class DailymotionIE(InfoExtractor):
 
     _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^/]+)'
     IE_NAME = u'dailymotion'
+    _WORKING = False
 
     def __init__(self, downloader=None):
         InfoExtractor.__init__(self, downloader)
 
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
-
     def report_extraction(self, video_id):
         """Report information extraction."""
         self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
@@ -682,13 +745,7 @@ class DailymotionIE(InfoExtractor):
         # Retrieve video webpage to extract further information
         request = compat_urllib_request.Request(url)
         request.add_header('Cookie', 'family_filter=off')
-        try:
-            self.report_download_webpage(video_id)
-            webpage_bytes = compat_urllib_request.urlopen(request).read()
-            webpage = webpage_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(request, video_id)
 
         # Extract URL, uploader and title from webpage
         self.report_extraction(video_id)
@@ -961,7 +1018,7 @@ class VimeoIE(InfoExtractor):
     """Information extractor for vimeo.com."""
 
     # _VALID_URL matches Vimeo URLs
-    _VALID_URL = r'(?:https?://)?(?:(?:www|player).)?vimeo\.com/(?:(?:groups|album)/[^/]+/)?(?:videos?/)?([0-9]+)'
+    _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):
@@ -982,7 +1039,11 @@ class VimeoIE(InfoExtractor):
             self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
             return
 
-        video_id = mobj.group(1)
+        video_id = mobj.group('id')
+        if not mobj.group('proto'):
+            url = 'https://' + url
+        if mobj.group('direct_link'):
+            url = 'https://vimeo.com/' + video_id
 
         # Retrieve video webpage to extract further information
         request = compat_urllib_request.Request(url, None, std_headers)
@@ -1273,7 +1334,7 @@ class GenericIE(InfoExtractor):
         opener = compat_urllib_request.OpenerDirector()
         for handler in [compat_urllib_request.HTTPHandler, compat_urllib_request.HTTPDefaultErrorHandler,
                         HTTPMethodFallback, HEADRedirectHandler,
-                        compat_urllib_error.HTTPErrorProcessor, compat_urllib_request.HTTPSHandler]:
+                        compat_urllib_request.HTTPErrorProcessor, compat_urllib_request.HTTPSHandler]:
             opener.add_handler(handler())
 
         response = opener.open(HeadRequest(url))
@@ -1309,6 +1370,9 @@ class GenericIE(InfoExtractor):
         if mobj is None:
             # Broaden the search a little bit
             mobj = re.search(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage)
+        if mobj is None:
+            # Broaden the search a little bit: JWPlayer JS loader
+            mobj = re.search(r'[^A-Za-z0-9]?file:\s*["\'](http[^\'"&]*)', webpage)
         if mobj is None:
             self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
             return
@@ -1392,7 +1456,7 @@ class YoutubeSearchIE(InfoExtractor):
                     self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
                     return
                 elif n > self._max_youtube_results:
-                    self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
+                    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
@@ -1412,12 +1476,16 @@ class YoutubeSearchIE(InfoExtractor):
             result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
             request = compat_urllib_request.Request(result_url)
             try:
-                data = compat_urllib_request.urlopen(request).read()
+                data = compat_urllib_request.urlopen(request).read().decode('utf-8')
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
                 self._downloader.trouble(u'ERROR: unable to download API page: %s' % compat_str(err))
                 return
             api_response = json.loads(data)['data']
 
+            if not 'items' in api_response:
+                self._downloader.trouble(u'[youtube] No video results')
+                return
+
             new_ids = list(video['id'] for video in api_response['items'])
             video_ids += new_ids
 
@@ -1470,7 +1538,7 @@ class GoogleSearchIE(InfoExtractor):
                     self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
                     return
                 elif n > self._max_google_results:
-                    self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
+                    self._downloader.report_warning(u'gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
                     n = self._max_google_results
                 self._download_n_results(query, n)
                 return
@@ -1507,2816 +1575,225 @@ class GoogleSearchIE(InfoExtractor):
 
             if re.search(self._MORE_PAGES_INDICATOR, page) is None:
                 for id in video_ids:
-                    self._downloader#!/usr/bin/env python
-# -*- coding: utf-8 -*-
+                    self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
+                return
 
-from __future__ import absolute_import
+            pagenum = pagenum + 1
 
-import datetime
-import netrc
-import os
-import re
-import socket
-import time
-import email.utils
-import xml.etree.ElementTree
-import random
-import math
 
-from .utils import *
+class YahooSearchIE(InfoExtractor):
+    """Information Extractor for Yahoo! Video search queries."""
 
+    _WORKING = False
+    _VALID_URL = r'yvsearch(\d+|all)?:[\s\S]+'
+    _TEMPLATE_URL = 'http://video.yahoo.com/search/?p=%s&o=%s'
+    _VIDEO_INDICATOR = r'href="http://video\.yahoo\.com/watch/([0-9]+/[0-9]+)"'
+    _MORE_PAGES_INDICATOR = r'\s*Next'
+    _max_yahoo_results = 1000
+    IE_NAME = u'video.yahoo:search'
 
-class InfoExtractor(object):
-    """Information Extractor class.
+    def __init__(self, downloader=None):
+        InfoExtractor.__init__(self, downloader)
 
-    Information extractors are the classes that, given a URL, extract
-    information about the video (or videos) the URL refers to. This
-    information includes the real video URL, the video title, author and
-    others. The information is stored in a dictionary which is then
-    passed to the FileDownloader. The FileDownloader processes this
-    information possibly downloading the video to the file system, among
-    other possible outcomes.
+    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))
 
-    The dictionaries must include the following fields:
+    def _real_extract(self, query):
+        mobj = re.match(self._VALID_URL, query)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+            return
 
-    id:             Video identifier.
-    url:            Final video URL.
-    title:          Video title, unescaped.
-    ext:            Video filename extension.
-    uploader:       Full name of the video uploader.
-    upload_date:    Video upload date (YYYYMMDD).
+        prefix, query = query.split(':')
+        prefix = prefix[8:]
+        query = query.encode('utf-8')
+        if prefix == '':
+            self._download_n_results(query, 1)
+            return
+        elif prefix == 'all':
+            self._download_n_results(query, self._max_yahoo_results)
+            return
+        else:
+            try:
+                n = int(prefix)
+                if n <= 0:
+                    self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+                    return
+                elif n > self._max_yahoo_results:
+                    self._downloader.report_warning(u'yvsearch returns max %i results (you requested %i)' % (self._max_yahoo_results, n))
+                    n = self._max_yahoo_results
+                self._download_n_results(query, n)
+                return
+            except ValueError: # parsing prefix as integer fails
+                self._download_n_results(query, 1)
+                return
 
-    The following fields are optional:
+    def _download_n_results(self, query, n):
+        """Downloads a specified number of results for a query"""
 
-    format:         The video format, defaults to ext (used for --get-format)
-    thumbnail:      Full URL to a video thumbnail image.
-    description:    One-line video description.
-    uploader_id:    Nickname or id of the video uploader.
-    player_url:     SWF Player URL (used for rtmpdump).
-    subtitles:      The .srt file contents.
-    urlhandle:      [internal] The urlHandle to be used to download the file,
-                    like returned by urllib.request.urlopen
+        video_ids = []
+        already_seen = set()
+        pagenum = 1
 
-    The fields should all be Unicode strings.
+        while True:
+            self.report_download_page(query, pagenum)
+            result_url = self._TEMPLATE_URL % (compat_urllib_parse.quote_plus(query), pagenum)
+            request = compat_urllib_request.Request(result_url)
+            try:
+                page = compat_urllib_request.urlopen(request).read()
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
 
-    Subclasses of this one should re-define the _real_initialize() and
-    _real_extract() methods and define a _VALID_URL regexp.
-    Probably, they should also be added to the list of extractors.
+            # Extract video identifiers
+            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+                video_id = mobj.group(1)
+                if video_id not in already_seen:
+                    video_ids.append(video_id)
+                    already_seen.add(video_id)
+                    if len(video_ids) == n:
+                        # Specified n videos reached
+                        for id in video_ids:
+                            self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
+                        return
 
-    _real_extract() must return a *list* of information dictionaries as
-    described above.
+            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+                for id in video_ids:
+                    self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
+                return
 
-    Finally, the _WORKING attribute should be set to False for broken IEs
-    in order to warn the users and skip the tests.
-    """
+            pagenum = pagenum + 1
 
-    _ready = False
-    _downloader = None
-    _WORKING = True
+
+class YoutubePlaylistIE(InfoExtractor):
+    """Information Extractor for YouTube playlists."""
+
+    _VALID_URL = r"""(?:
+                        (?:https?://)?
+                        (?:\w+\.)?
+                        youtube\.com/
+                        (?:
+                           (?: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,})
+                        .*
+                     |
+                        ((?:PL|EC|UU)[0-9A-Za-z-_]{10,})
+                     )"""
+    _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json'
+    _MAX_RESULTS = 50
+    IE_NAME = u'youtube:playlist'
 
     def __init__(self, downloader=None):
-        """Constructor. Receives an optional downloader."""
-        self._ready = False
-        self.set_downloader(downloader)
+        InfoExtractor.__init__(self, downloader)
 
-    def suitable(self, url):
+    @classmethod
+    def suitable(cls, url):
         """Receives a URL and returns True if suitable for this IE."""
-        return re.match(self._VALID_URL, url) is not None
+        return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
 
-    def working(self):
-        """Getter method for _WORKING."""
-        return self._WORKING
+    def report_download_page(self, playlist_id, pagenum):
+        """Report attempt to download playlist page with given number."""
+        self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
 
-    def initialize(self):
-        """Initializes an instance (authentication, etc)."""
-        if not self._ready:
-            self._real_initialize()
-            self._ready = True
+    def _real_extract(self, url):
+        # Extract playlist id
+        mobj = re.match(self._VALID_URL, url, re.VERBOSE)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+            return
 
-    def extract(self, url):
-        """Extracts URL information and returns it in list of dicts."""
-        self.initialize()
-        return self._real_extract(url)
+        # Download playlist videos from API
+        playlist_id = mobj.group(1) or mobj.group(2)
+        page_num = 1
+        videos = []
 
-    def set_downloader(self, downloader):
-        """Sets the downloader for this IE."""
-        self._downloader = downloader
+        while True:
+            self.report_download_page(playlist_id, page_num)
 
-    def _real_initialize(self):
-        """Real initialization process. Redefine in subclasses."""
-        pass
+            url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, self._MAX_RESULTS * (page_num - 1) + 1)
+            try:
+                page = compat_urllib_request.urlopen(url).read().decode('utf8')
+            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
+                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
+
+            try:
+                response = json.loads(page)
+            except ValueError as err:
+                self._downloader.trouble(u'ERROR: Invalid JSON in API response: ' + compat_str(err))
+                return
+
+            if not 'feed' in response or not 'entry' in response['feed']:
+                self._downloader.trouble(u'ERROR: Got a malformed response from YouTube API')
+                return
+            videos += [ (entry['yt$position']['$t'], entry['content']['src'])
+                        for entry in response['feed']['entry']
+                        if 'content' in entry ]
+
+            if len(response['feed']['entry']) < self._MAX_RESULTS:
+                break
+            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
+
+
+class YoutubeChannelIE(InfoExtractor):
+    """Information Extractor for YouTube channels."""
+
+    _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}"
+    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 _real_extract(self, url):
-        """Real extraction process. Redefine in subclasses."""
-        pass
+        # Extract channel id
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+            return
 
-    @property
-    def IE_NAME(self):
-        return type(self).__name__[:-2]
+        # Download channel pages
+        channel_id = mobj.group(1)
+        video_ids = []
+        pagenum = 1
 
-class YoutubeIE(InfoExtractor):
-    """Information extractor for youtube.com."""
-
-    _VALID_URL = r"""^
-                     (
-                         (?:https?://)?                                       # http(s):// (optional)
-                         (?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|
-                            tube\.majestyc\.net/)                             # the various hostnames, with wildcard subdomains
-                         (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
-                         (?!view_play_list|my_playlists|artist|playlist)      # ignore playlist URLs
-                         (?:                                                  # the various things that can precede the ID:
-                             (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
-                             |(?:                                             # or the v= param in all its forms
-                                 (?:watch(?:_popup)?(?:\.php)?)?              # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
-                                 (?:\?|\#!?)                                  # the params delimiter ? or # or #!
-                                 (?:.*?&)?                                    # any other preceding param (like /?s=tuff&v=xxxx)
-                                 v=
-                             )
-                         )?                                                   # optional -> youtube.com/xxxx is OK
-                     )?                                                       # all until now is optional -> you can pass the naked ID
-                     ([0-9A-Za-z_-]+)                                         # here is it! the YouTube video ID
-                     (?(1).+)?                                                # if we found the ID, everything can follow
-                     $"""
-    _LANG_URL = r'http://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
-    _LOGIN_URL = 'https://www.youtube.com/signup?next=/&gl=US&hl=en'
-    _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
-    _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
-    _NETRC_MACHINE = 'youtube'
-    # Listed in order of quality
-    _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
-    _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
-    _video_extensions = {
-        '13': '3gp',
-        '17': 'mp4',
-        '18': 'mp4',
-        '22': 'mp4',
-        '37': 'mp4',
-        '38': 'video', # You actually don't know if this will be MOV, AVI or whatever
-        '43': 'webm',
-        '44': 'webm',
-        '45': 'webm',
-        '46': 'webm',
-    }
-    _video_dimensions = {
-        '5': '240x400',
-        '6': '???',
-        '13': '???',
-        '17': '144x176',
-        '18': '360x640',
-        '22': '720x1280',
-        '34': '360x640',
-        '35': '480x854',
-        '37': '1080x1920',
-        '38': '3072x4096',
-        '43': '360x640',
-        '44': '480x854',
-        '45': '720x1280',
-        '46': '1080x1920',
-    }
-    IE_NAME = u'youtube'
-
-    def suitable(self, url):
-        """Receives a URL and returns True if suitable for this IE."""
-        return re.match(self._VALID_URL, url, re.VERBOSE) is not None
-
-    def report_lang(self):
-        """Report attempt to set language."""
-        self._downloader.to_screen(u'[youtube] 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')
-
-    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)
-
-    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)
-
-    def report_video_subtitles_download(self, video_id):
-        """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles' % video_id)
-
-    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)
-
-    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))
-
-    def report_rtmp_download(self):
-        """Indicate the download will use the RTMP protocol."""
-        self._downloader.to_screen(u'[youtube] RTMP download detected')
-
-    def _closed_captions_xml_to_srt(self, xml_string):
-        srt = ''
-        texts = re.findall(r'<text start="([\d\.]+)"( dur="([\d\.]+)")?>([^<]+)</text>', xml_string, re.MULTILINE)
-        # TODO parse xml instead of regex
-        for n, (start, dur_tag, dur, caption) in enumerate(texts):
-            if not dur: dur = '4'
-            start = float(start)
-            end = start + float(dur)
-            start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000)
-            end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000)
-            caption = unescapeHTML(caption)
-            caption = unescapeHTML(caption) # double cycle, intentional
-            srt += str(n+1) + '\n'
-            srt += start + ' --> ' + end + '\n'
-            srt += caption + '\n\n'
-        return srt
-
-    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))
-
-    def _print_formats(self, formats):
-        print('Available formats:')
-        for x in formats:
-            print('%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???')))
-
-    def _real_initialize(self):
-        if self._downloader is None:
-            return
-
-        username = None
-        password = None
-        downloader_params = self._downloader.params
-
-        # Attempt to use provided username and password or .netrc data
-        if downloader_params.get('username', None) is not None:
-            username = downloader_params['username']
-            password = downloader_params['password']
-        elif downloader_params.get('usenetrc', False):
-            try:
-                info = netrc.netrc().authenticators(self._NETRC_MACHINE)
-                if info is not None:
-                    username = info[0]
-                    password = info[2]
-                else:
-                    raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
-            except (IOError, netrc.NetrcParseError) as err:
-                self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % compat_str(err))
-                return
-
-        # Set language
-        request = compat_urllib_request.Request(self._LANG_URL)
-        try:
-            self.report_lang()
-            compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.to_stderr(u'WARNING: unable to set language: %s' % compat_str(err))
-            return
-
-        # No authentication to be performed
-        if username is None:
-            return
-
-        # Log in
-        login_form = {
-                'current_form': 'loginForm',
-                'next':     '/',
-                'action_login': 'Log In',
-                'username': username,
-                'password': password,
-                }
-        request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
-        try:
-            self.report_login()
-            login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
-            if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
-                self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
-                return
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.to_stderr(u'WARNING: unable to log in: %s' % compat_str(err))
-            return
-
-        # Confirm age
-        age_form = {
-                'next_url':     '/',
-                'action_confirm':   'Confirm',
-                }
-        request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
-        try:
-            self.report_age_confirmation()
-            age_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to confirm age: %s' % compat_str(err))
-            return
-
-    def _extract_id(self, url):
-        mobj = re.match(self._VALID_URL, url, re.VERBOSE)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
-        video_id = mobj.group(2)
-        return video_id
-
-    def _real_extract(self, url):
-        # Extract original video URL from URL with redirection, like age verification, using next_url parameter
-        mobj = re.search(self._NEXT_URL_RE, url)
-        if mobj:
-            url = 'http://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
-        video_id = self._extract_id(url)
-
-        # Get video webpage
-        self.report_video_webpage_download(video_id)
-        url = 'http://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
-        request = compat_urllib_request.Request(url)
-        try:
-            video_webpage_bytes = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
-            return
-
-        video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
-
-        # Attempt to extract SWF player URL
-        mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
-        if mobj is not None:
-            player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
-        else:
-            player_url = None
-
-        # 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_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.trouble(u'ERROR: unable to download video info webpage: %s' % compat_str(err))
-                return
-        if 'token' not in video_info:
-            if 'reason' in video_info:
-                self._downloader.trouble(u'ERROR: YouTube said: %s' % video_info['reason'][0])
-            else:
-                self._downloader.trouble(u'ERROR: "token" parameter not in video info for unknown reason')
-            return
-
-        # Check for "rental" videos
-        if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
-            self._downloader.trouble(u'ERROR: "rental" videos not supported')
-            return
-
-        # Start extracting information
-        self.report_information_extraction(video_id)
-
-        # uploader
-        if 'author' not in video_info:
-            self._downloader.trouble(u'ERROR: unable to extract uploader name')
-            return
-        video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
-
-        # uploader_id
-        video_uploader_id = None
-        mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/user/([^"]+)">', video_webpage)
-        if mobj is not None:
-            video_uploader_id = mobj.group(1)
-        else:
-            self._downloader.trouble(u'WARNING: unable to extract uploader nickname')
-
-        # title
-        if 'title' not in video_info:
-            self._downloader.trouble(u'ERROR: unable to extract video title')
-            return
-        video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
-
-        # thumbnail image
-        if 'thumbnail_url' not in video_info:
-            self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
-            video_thumbnail = ''
-        else:   # don't panic if we can't find it
-            video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
-
-        # upload date
-        upload_date = None
-        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
-
-        # description
-        video_description = get_element_by_id("eow-description", video_webpage)
-        if video_description:
-            video_description = clean_html(video_description)
-        else:
-            video_description = ''
-
-        # closed captions
-        video_subtitles = None
-        if self._downloader.params.get('writesubtitles', False):
-            (srt_error, video_subtitles) = self._extract_subtitles(video_id)
-            if srt_error:
-                self._downloader.trouble(srt_error)
-
-        if 'length_seconds' not in video_info:
-            self._downloader.trouble(u'WARNING: unable to extract video duration')
-            video_duration = ''
-        else:
-            video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
-
-        # token
-        video_token = compat_urllib_parse.unquote_plus(video_info['token'][0])
-
-        # Decide which formats to download
-        req_format = self._downloader.params.get('format', None)
-
-        if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
-            self.report_rtmp_download()
-            video_url_list = [(None, video_info['conn'][0])]
-        elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
-            url_data_strs = video_info['url_encoded_fmt_stream_map'][0].split(',')
-            url_data = [compat_parse_qs(uds) for uds in url_data_strs]
-            url_data = [ud for ud in url_data if 'itag' in ud and 'url' in ud]
-            url_map = dict((ud['itag'][0], ud['url'][0] + '&signature=' + ud['sig'][0]) for ud in url_data)
-
-            format_limit = self._downloader.params.get('format_limit', None)
-            available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
-            if format_limit is not None and format_limit in available_formats:
-                format_list = available_formats[available_formats.index(format_limit):]
-            else:
-                format_list = available_formats
-            existing_formats = [x for x in format_list if x in url_map]
-            if len(existing_formats) == 0:
-                self._downloader.trouble(u'ERROR: no known formats available for video')
-                return
-            if self._downloader.params.get('listformats', None):
-                self._print_formats(existing_formats)
-                return
-            if req_format is None or req_format == 'best':
-                video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
-            elif req_format == 'worst':
-                video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
-            elif req_format in ('-1', 'all'):
-                video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
-            else:
-                # Specific formats. We pick the first in a slash-delimeted sequence.
-                # For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
-                req_formats = req_format.split('/')
-                video_url_list = None
-                for rf in req_formats:
-                    if rf in url_map:
-                        video_url_list = [(rf, url_map[rf])]
-                        break
-                if video_url_list is None:
-                    self._downloader.trouble(u'ERROR: requested format not available')
-                    return
-        else:
-            self._downloader.trouble(u'ERROR: no conn or url_encoded_fmt_stream_map information found in video info')
-            return
-
-        results = []
-        for format_param, video_real_url in video_url_list:
-            # Extension
-            video_extension = self._video_extensions.get(format_param, 'flv')
-
-            video_format = '{0} - {1}'.format(format_param if format_param else video_extension,
-                                              self._video_dimensions.get(format_param, '???'))
-
-            results.append({
-                'id':       video_id,
-                'url':      video_real_url,
-                'uploader': video_uploader,
-                'uploader_id': video_uploader_id,
-                'upload_date':  upload_date,
-                'title':    video_title,
-                'ext':      video_extension,
-                'format':   video_format,
-                'thumbnail':    video_thumbnail,
-                'description':  video_description,
-                'player_url':   player_url,
-                'subtitles':    video_subtitles,
-                'duration':     video_duration
-            })
-        return results
-
-
-class MetacafeIE(InfoExtractor):
-    """Information Extractor for metacafe.com."""
-
-    _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
-    _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
-    _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)
-
-    def _real_initialize(self):
-        # Retrieve disclaimer
-        request = compat_urllib_request.Request(self._DISCLAIMER)
-        try:
-            self.report_disclaimer()
-            disclaimer = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to retrieve disclaimer: %s' % compat_str(err))
-            return
-
-        # Confirm age
-        disclaimer_form = {
-            'filters': '0',
-            'submit': "Continue - I'm over 18",
-            }
-        request = compat_urllib_request.Request(self._FILTER_POST, compat_urllib_parse.urlencode(disclaimer_form))
-        try:
-            self.report_age_confirmation()
-            disclaimer = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to confirm age: %s' % compat_str(err))
-            return
-
-    def _real_extract(self, url):
-        # Extract id and simplified title from URL
-        mobj = re.match(self._VALID_URL, url)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1)
-
-        # 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
-
-        # 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.trouble(u'ERROR: unable retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract URL, uploader and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
-        if mobj is not None:
-            mediaURL = compat_urllib_parse.unquote(mobj.group(1))
-            video_extension = mediaURL[-3:]
-
-            # Extract gdaKey if available
-            mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
-            if mobj is None:
-                video_url = mediaURL
-            else:
-                gdaKey = mobj.group(1)
-                video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
-        else:
-            mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: unable to extract media URL')
-                return
-            vardict = compat_parse_qs(mobj.group(1))
-            if 'mediaData' not in vardict:
-                self._downloader.trouble(u'ERROR: unable to extract media URL')
-                return
-            mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: unable to extract media URL')
-                return
-            mediaURL = mobj.group(1).replace('\\/', '/')
-            video_extension = mediaURL[-3:]
-            video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
-
-        mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_title = mobj.group(1).decode('utf-8')
-
-        mobj = re.search(r'submitter=(.*?);', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-            return
-        video_uploader = mobj.group(1)
-
-        return [{
-            'id':       video_id.decode('utf-8'),
-            'url':      video_url.decode('utf-8'),
-            'uploader': video_uploader.decode('utf-8'),
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      video_extension.decode('utf-8'),
-        }]
-
-
-class DailymotionIE(InfoExtractor):
-    """Information Extractor for Dailymotion"""
-
-    _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^/]+)'
-    IE_NAME = u'dailymotion'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
-
-    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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1).split('_')[0].split('?')[0]
-
-        video_extension = 'mp4'
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url)
-        request.add_header('Cookie', 'family_filter=off')
-        try:
-            self.report_download_webpage(video_id)
-            webpage_bytes = compat_urllib_request.urlopen(request).read()
-            webpage = webpage_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract URL, uploader and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'\s*var flashvars = (.*)', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract media URL')
-            return
-        flashvars = compat_urllib_parse.unquote(mobj.group(1))
-
-        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)
-                break
-        else:
-            self._downloader.trouble(u'ERROR: unable to extract video URL')
-            return
-
-        mobj = re.search(r'"' + max_quality + r'":"(.+?)"', flashvars)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video URL')
-            return
-
-        video_url = compat_urllib_parse.unquote(mobj.group(1)).replace('\\/', '/')
-
-        # TODO: support choosing qualities
-
-        mobj = re.search(r'<meta property="og:title" content="(?P<title>[^"]*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_title = unescapeHTML(mobj.group('title'))
-
-        video_uploader = None
-        mobj = re.search(r'(?im)<span class="owner[^\"]+?">[^<]+?<a [^>]+?>([^<]+?)</a>', webpage)
-        if mobj is None:
-            # lookin for official user
-            mobj_official = re.search(r'<span rel="author"[^>]+?>([^<]+?)</span>', webpage)
-            if mobj_official is None:
-                self._downloader.trouble(u'WARNING: unable to extract uploader nickname')
-            else:
-                video_uploader = mobj_official.group(1)
-        else:
-            video_uploader = mobj.group(1)
-
-        video_upload_date = None
-        mobj = re.search(r'<div class="[^"]*uploaded_cont[^"]*" title="[^"]*">([0-9]{2})-([0-9]{2})-([0-9]{4})</div>', webpage)
-        if mobj is not None:
-            video_upload_date = mobj.group(3) + mobj.group(2) + mobj.group(1)
-
-        return [{
-            'id':       video_id,
-            'url':      video_url,
-            'uploader': video_uploader,
-            'upload_date':  video_upload_date,
-            'title':    video_title,
-            'ext':      video_extension,
-        }]
-
-
-class PhotobucketIE(InfoExtractor):
-    """Information extractor for photobucket.com."""
-
-    _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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1)
-
-        video_extension = 'flv'
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url)
-        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.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract URL, uploader, and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract media URL')
-            return
-        mediaURL = compat_urllib_parse.unquote(mobj.group(1))
-
-        video_url = mediaURL
-
-        mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_title = mobj.group(1).decode('utf-8')
-
-        video_uploader = mobj.group(2).decode('utf-8')
-
-        return [{
-            'id':       video_id.decode('utf-8'),
-            'url':      video_url.decode('utf-8'),
-            'uploader': video_uploader,
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      video_extension.decode('utf-8'),
-        }]
-
-
-class YahooIE(InfoExtractor):
-    """Information extractor for video.yahoo.com."""
-
-    _WORKING = False
-    # _VALID_URL matches all Yahoo! Video URLs
-    # _VPAGE_URL matches only the extractable '/watch/' URLs
-    _VALID_URL = r'(?:http://)?(?:[a-z]+\.)?video\.yahoo\.com/(?:watch|network)/([0-9]+)(?:/|\?v=)([0-9]+)(?:[#\?].*)?'
-    _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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(2)
-        video_extension = 'flv'
-
-        # Rewrite valid but non-extractable URLs as
-        # extractable English language /watch/ URLs
-        if re.match(self._VPAGE_URL, url) is None:
-            request = compat_urllib_request.Request(url)
-            try:
-                webpage = compat_urllib_request.urlopen(request).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-                return
-
-            mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: Unable to extract id field')
-                return
-            yahoo_id = mobj.group(1)
-
-            mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: Unable to extract vid field')
-                return
-            yahoo_vid = mobj.group(1)
-
-            url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
-            return self._real_extract(url, new_video=False)
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url)
-        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.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract uploader and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video title')
-            return
-        video_title = mobj.group(1).decode('utf-8')
-
-        mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video uploader')
-            return
-        video_uploader = mobj.group(1).decode('utf-8')
-
-        # Extract video thumbnail
-        mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
-            return
-        video_thumbnail = mobj.group(1).decode('utf-8')
-
-        # Extract video description
-        mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video description')
-            return
-        video_description = mobj.group(1).decode('utf-8')
-        if not video_description:
-            video_description = 'No description available.'
-
-        # Extract video height and width
-        mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video height')
-            return
-        yv_video_height = mobj.group(1)
-
-        mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video width')
-            return
-        yv_video_width = mobj.group(1)
-
-        # Retrieve video playlist to extract media URL
-        # I'm not completely sure what all these options are, but we
-        # seem to need most of them, otherwise the server sends a 401.
-        yv_lg = 'R0xx6idZnW2zlrKP8xxAIR'  # not sure what this represents
-        yv_bitrate = '700'  # according to Wikipedia this is hard-coded
-        request = compat_urllib_request.Request('http://cosmos.bcst.yahoo.com/up/yep/process/getPlaylistFOP.php?node_id=' + video_id +
-                '&tech=flash&mode=playlist&lg=' + yv_lg + '&bitrate=' + yv_bitrate + '&vidH=' + yv_video_height +
-                '&vidW=' + yv_video_width + '&swf=as3&rd=video.yahoo.com&tk=null&adsupported=v1,v2,&eventid=1301797')
-        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.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract media URL from playlist XML
-        mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Unable to extract media URL')
-            return
-        video_url = compat_urllib_parse.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
-        video_url = unescapeHTML(video_url)
-
-        return [{
-            'id':       video_id.decode('utf-8'),
-            'url':      video_url,
-            'uploader': video_uploader,
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      video_extension.decode('utf-8'),
-            'thumbnail':    video_thumbnail.decode('utf-8'),
-            'description':  video_description,
-        }]
-
-
-class VimeoIE(InfoExtractor):
-    """Information extractor for vimeo.com."""
-
-    # _VALID_URL matches Vimeo URLs
-    _VALID_URL = r'(?:https?://)?(?:(?:www|player).)?vimeo\.com/(?:(?:groups|album)/[^/]+/)?(?:videos?/)?([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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1)
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url, None, std_headers)
-        try:
-            self.report_download_webpage(video_id)
-            webpage_bytes = compat_urllib_request.urlopen(request).read()
-            webpage = webpage_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Now we begin extracting as much information as we can from what we
-        # retrieved. First we extract the information common to all extractors,
-        # and latter we extract those that are Vimeo specific.
-        self.report_extraction(video_id)
-
-        # Extract the config JSON
-        try:
-            config = webpage.split(' = {config:')[1].split(',assets:')[0]
-            config = json.loads(config)
-        except:
-            self._downloader.trouble(u'ERROR: unable to extract info section')
-            return
-
-        # Extract title
-        video_title = config["video"]["title"]
-
-        # Extract uploader and uploader_id
-        video_uploader = config["video"]["owner"]["name"]
-        video_uploader_id = config["video"]["owner"]["url"].split('/')[-1]
-
-        # Extract video thumbnail
-        video_thumbnail = config["video"]["thumbnail"]
-
-        # Extract video description
-        video_description = get_element_by_attribute("itemprop", "description", webpage)
-        if video_description: video_description = clean_html(video_description)
-        else: video_description = ''
-
-        # Extract upload date
-        video_upload_date = None
-        mobj = re.search(r'<meta itemprop="dateCreated" content="(\d{4})-(\d{2})-(\d{2})T', webpage)
-        if mobj is not None:
-            video_upload_date = mobj.group(1) + mobj.group(2) + mobj.group(3)
-
-        # Vimeo specific: extract request signature and timestamp
-        sig = config['request']['signature']
-        timestamp = config['request']['timestamp']
-
-        # Vimeo specific: extract video codec and quality information
-        # First consider quality, then codecs, then take everything
-        # TODO bind to format param
-        codecs = [('h264', 'mp4'), ('vp8', 'flv'), ('vp6', 'flv')]
-        files = { 'hd': [], 'sd': [], 'other': []}
-        for codec_name, codec_extension in codecs:
-            if codec_name in config["video"]["files"]:
-                if 'hd' in config["video"]["files"][codec_name]:
-                    files['hd'].append((codec_name, codec_extension, 'hd'))
-                elif 'sd' in config["video"]["files"][codec_name]:
-                    files['sd'].append((codec_name, codec_extension, 'sd'))
-                else:
-                    files['other'].append((codec_name, codec_extension, config["video"]["files"][codec_name][0]))
-
-        for quality in ('hd', 'sd', 'other'):
-            if len(files[quality]) > 0:
-                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))
-                break
-        else:
-            self._downloader.trouble(u'ERROR: no known codec found')
-            return
-
-        video_url = "http://player.vimeo.com/play_redirect?clip_id=%s&sig=%s&time=%s&quality=%s&codecs=%s&type=moogaloop_local&embed_location=" \
-                    %(video_id, sig, timestamp, video_quality, video_codec.upper())
-
-        return [{
-            'id':       video_id,
-            'url':      video_url,
-            'uploader': video_uploader,
-            'uploader_id': video_uploader_id,
-            'upload_date':  video_upload_date,
-            'title':    video_title,
-            'ext':      video_extension,
-            'thumbnail':    video_thumbnail,
-            'description':  video_description,
-        }]
-
-
-class ArteTvIE(InfoExtractor):
-    """arte.tv information extractor."""
-
-    _VALID_URL = r'(?:http://)?videos\.arte\.tv/(?:fr|de)/videos/.*'
-    _LIVE_URL = r'index-[0-9]+\.html$'
-
-    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):
-        self._downloader.incre#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-from __future__ import absolute_import
-
-import datetime
-import netrc
-import os
-import re
-import socket
-import time
-import email.utils
-import xml.etree.ElementTree
-import random
-import math
-
-from .utils import *
-
-
-class InfoExtractor(object):
-    """Information Extractor class.
-
-    Information extractors are the classes that, given a URL, extract
-    information about the video (or videos) the URL refers to. This
-    information includes the real video URL, the video title, author and
-    others. The information is stored in a dictionary which is then
-    passed to the FileDownloader. The FileDownloader processes this
-    information possibly downloading the video to the file system, among
-    other possible outcomes.
-
-    The dictionaries must include the following fields:
-
-    id:             Video identifier.
-    url:            Final video URL.
-    title:          Video title, unescaped.
-    ext:            Video filename extension.
-    uploader:       Full name of the video uploader.
-    upload_date:    Video upload date (YYYYMMDD).
-
-    The following fields are optional:
-
-    format:         The video format, defaults to ext (used for --get-format)
-    thumbnail:      Full URL to a video thumbnail image.
-    description:    One-line video description.
-    uploader_id:    Nickname or id of the video uploader.
-    player_url:     SWF Player URL (used for rtmpdump).
-    subtitles:      The .srt file contents.
-    urlhandle:      [internal] The urlHandle to be used to download the file,
-                    like returned by urllib.request.urlopen
-
-    The fields should all be Unicode strings.
-
-    Subclasses of this one should re-define the _real_initialize() and
-    _real_extract() methods and define a _VALID_URL regexp.
-    Probably, they should also be added to the list of extractors.
-
-    _real_extract() must return a *list* of information dictionaries as
-    described above.
-
-    Finally, the _WORKING attribute should be set to False for broken IEs
-    in order to warn the users and skip the tests.
-    """
-
-    _ready = False
-    _downloader = None
-    _WORKING = True
-
-    def __init__(self, downloader=None):
-        """Constructor. Receives an optional downloader."""
-        self._ready = False
-        self.set_downloader(downloader)
-
-    def suitable(self, url):
-        """Receives a URL and returns True if suitable for this IE."""
-        return re.match(self._VALID_URL, url) is not None
-
-    def working(self):
-        """Getter method for _WORKING."""
-        return self._WORKING
-
-    def initialize(self):
-        """Initializes an instance (authentication, etc)."""
-        if not self._ready:
-            self._real_initialize()
-            self._ready = True
-
-    def extract(self, url):
-        """Extracts URL information and returns it in list of dicts."""
-        self.initialize()
-        return self._real_extract(url)
-
-    def set_downloader(self, downloader):
-        """Sets the downloader for this IE."""
-        self._downloader = downloader
-
-    def _real_initialize(self):
-        """Real initialization process. Redefine in subclasses."""
-        pass
-
-    def _real_extract(self, url):
-        """Real extraction process. Redefine in subclasses."""
-        pass
-
-    @property
-    def IE_NAME(self):
-        return type(self).__name__[:-2]
-
-class YoutubeIE(InfoExtractor):
-    """Information extractor for youtube.com."""
-
-    _VALID_URL = r"""^
-                     (
-                         (?:https?://)?                                       # http(s):// (optional)
-                         (?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/|
-                            tube\.majestyc\.net/)                             # the various hostnames, with wildcard subdomains
-                         (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
-                         (?!view_play_list|my_playlists|artist|playlist)      # ignore playlist URLs
-                         (?:                                                  # the various things that can precede the ID:
-                             (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
-                             |(?:                                             # or the v= param in all its forms
-                                 (?:watch(?:_popup)?(?:\.php)?)?              # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
-                                 (?:\?|\#!?)                                  # the params delimiter ? or # or #!
-                                 (?:.*?&)?                                    # any other preceding param (like /?s=tuff&v=xxxx)
-                                 v=
-                             )
-                         )?                                                   # optional -> youtube.com/xxxx is OK
-                     )?                                                       # all until now is optional -> you can pass the naked ID
-                     ([0-9A-Za-z_-]+)                                         # here is it! the YouTube video ID
-                     (?(1).+)?                                                # if we found the ID, everything can follow
-                     $"""
-    _LANG_URL = r'http://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
-    _LOGIN_URL = 'https://www.youtube.com/signup?next=/&gl=US&hl=en'
-    _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
-    _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
-    _NETRC_MACHINE = 'youtube'
-    # Listed in order of quality
-    _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
-    _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
-    _video_extensions = {
-        '13': '3gp',
-        '17': 'mp4',
-        '18': 'mp4',
-        '22': 'mp4',
-        '37': 'mp4',
-        '38': 'video', # You actually don't know if this will be MOV, AVI or whatever
-        '43': 'webm',
-        '44': 'webm',
-        '45': 'webm',
-        '46': 'webm',
-    }
-    _video_dimensions = {
-        '5': '240x400',
-        '6': '???',
-        '13': '???',
-        '17': '144x176',
-        '18': '360x640',
-        '22': '720x1280',
-        '34': '360x640',
-        '35': '480x854',
-        '37': '1080x1920',
-        '38': '3072x4096',
-        '43': '360x640',
-        '44': '480x854',
-        '45': '720x1280',
-        '46': '1080x1920',
-    }
-    IE_NAME = u'youtube'
-
-    def suitable(self, url):
-        """Receives a URL and returns True if suitable for this IE."""
-        return re.match(self._VALID_URL, url, re.VERBOSE) is not None
-
-    def report_lang(self):
-        """Report attempt to set language."""
-        self._downloader.to_screen(u'[youtube] 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')
-
-    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)
-
-    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)
-
-    def report_video_subtitles_download(self, video_id):
-        """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles' % video_id)
-
-    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)
-
-    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))
-
-    def report_rtmp_download(self):
-        """Indicate the download will use the RTMP protocol."""
-        self._downloader.to_screen(u'[youtube] RTMP download detected')
-
-    def _closed_captions_xml_to_srt(self, xml_string):
-        srt = ''
-        texts = re.findall(r'<text start="([\d\.]+)"( dur="([\d\.]+)")?>([^<]+)</text>', xml_string, re.MULTILINE)
-        # TODO parse xml instead of regex
-        for n, (start, dur_tag, dur, caption) in enumerate(texts):
-            if not dur: dur = '4'
-            start = float(start)
-            end = start + float(dur)
-            start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000)
-            end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000)
-            caption = unescapeHTML(caption)
-            caption = unescapeHTML(caption) # double cycle, intentional
-            srt += str(n+1) + '\n'
-            srt += start + ' --> ' + end + '\n'
-            srt += caption + '\n\n'
-        return srt
-
-    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))
-
-    def _print_formats(self, formats):
-        print('Available formats:')
-        for x in formats:
-            print('%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???')))
-
-    def _real_initialize(self):
-        if self._downloader is None:
-            return
-
-        username = None
-        password = None
-        downloader_params = self._downloader.params
-
-        # Attempt to use provided username and password or .netrc data
-        if downloader_params.get('username', None) is not None:
-            username = downloader_params['username']
-            password = downloader_params['password']
-        elif downloader_params.get('usenetrc', False):
-            try:
-                info = netrc.netrc().authenticators(self._NETRC_MACHINE)
-                if info is not None:
-                    username = info[0]
-                    password = info[2]
-                else:
-                    raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
-            except (IOError, netrc.NetrcParseError) as err:
-                self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % compat_str(err))
-                return
-
-        # Set language
-        request = compat_urllib_request.Request(self._LANG_URL)
-        try:
-            self.report_lang()
-            compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.to_stderr(u'WARNING: unable to set language: %s' % compat_str(err))
-            return
-
-        # No authentication to be performed
-        if username is None:
-            return
-
-        # Log in
-        login_form = {
-                'current_form': 'loginForm',
-                'next':     '/',
-                'action_login': 'Log In',
-                'username': username,
-                'password': password,
-                }
-        request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form))
-        try:
-            self.report_login()
-            login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
-            if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
-                self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
-                return
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.to_stderr(u'WARNING: unable to log in: %s' % compat_str(err))
-            return
-
-        # Confirm age
-        age_form = {
-                'next_url':     '/',
-                'action_confirm':   'Confirm',
-                }
-        request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
-        try:
-            self.report_age_confirmation()
-            age_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to confirm age: %s' % compat_str(err))
-            return
-
-    def _extract_id(self, url):
-        mobj = re.match(self._VALID_URL, url, re.VERBOSE)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
-        video_id = mobj.group(2)
-        return video_id
-
-    def _real_extract(self, url):
-        # Extract original video URL from URL with redirection, like age verification, using next_url parameter
-        mobj = re.search(self._NEXT_URL_RE, url)
-        if mobj:
-            url = 'http://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
-        video_id = self._extract_id(url)
-
-        # Get video webpage
-        self.report_video_webpage_download(video_id)
-        url = 'http://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
-        request = compat_urllib_request.Request(url)
-        try:
-            video_webpage_bytes = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
-            return
-
-        video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
-
-        # Attempt to extract SWF player URL
-        mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
-        if mobj is not None:
-            player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
-        else:
-            player_url = None
-
-        # 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_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.trouble(u'ERROR: unable to download video info webpage: %s' % compat_str(err))
-                return
-        if 'token' not in video_info:
-            if 'reason' in video_info:
-                self._downloader.trouble(u'ERROR: YouTube said: %s' % video_info['reason'][0])
-            else:
-                self._downloader.trouble(u'ERROR: "token" parameter not in video info for unknown reason')
-            return
-
-        # Check for "rental" videos
-        if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
-            self._downloader.trouble(u'ERROR: "rental" videos not supported')
-            return
-
-        # Start extracting information
-        self.report_information_extraction(video_id)
-
-        # uploader
-        if 'author' not in video_info:
-            self._downloader.trouble(u'ERROR: unable to extract uploader name')
-            return
-        video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
-
-        # uploader_id
-        video_uploader_id = None
-        mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/user/([^"]+)">', video_webpage)
-        if mobj is not None:
-            video_uploader_id = mobj.group(1)
-        else:
-            self._downloader.trouble(u'WARNING: unable to extract uploader nickname')
-
-        # title
-        if 'title' not in video_info:
-            self._downloader.trouble(u'ERROR: unable to extract video title')
-            return
-        video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
-
-        # thumbnail image
-        if 'thumbnail_url' not in video_info:
-            self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
-            video_thumbnail = ''
-        else:   # don't panic if we can't find it
-            video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
-
-        # upload date
-        upload_date = None
-        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
-
-        # description
-        video_description = get_element_by_id("eow-description", video_webpage)
-        if video_description:
-            video_description = clean_html(video_description)
-        else:
-            video_description = ''
-
-        # closed captions
-        video_subtitles = None
-        if self._downloader.params.get('writesubtitles', False):
-            (srt_error, video_subtitles) = self._extract_subtitles(video_id)
-            if srt_error:
-                self._downloader.trouble(srt_error)
-
-        if 'length_seconds' not in video_info:
-            self._downloader.trouble(u'WARNING: unable to extract video duration')
-            video_duration = ''
-        else:
-            video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
-
-        # token
-        video_token = compat_urllib_parse.unquote_plus(video_info['token'][0])
-
-        # Decide which formats to download
-        req_format = self._downloader.params.get('format', None)
-
-        if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
-            self.report_rtmp_download()
-            video_url_list = [(None, video_info['conn'][0])]
-        elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
-            url_data_strs = video_info['url_encoded_fmt_stream_map'][0].split(',')
-            url_data = [compat_parse_qs(uds) for uds in url_data_strs]
-            url_data = [ud for ud in url_data if 'itag' in ud and 'url' in ud]
-            url_map = dict((ud['itag'][0], ud['url'][0] + '&signature=' + ud['sig'][0]) for ud in url_data)
-
-            format_limit = self._downloader.params.get('format_limit', None)
-            available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
-            if format_limit is not None and format_limit in available_formats:
-                format_list = available_formats[available_formats.index(format_limit):]
-            else:
-                format_list = available_formats
-            existing_formats = [x for x in format_list if x in url_map]
-            if len(existing_formats) == 0:
-                self._downloader.trouble(u'ERROR: no known formats available for video')
-                return
-            if self._downloader.params.get('listformats', None):
-                self._print_formats(existing_formats)
-                return
-            if req_format is None or req_format == 'best':
-                video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
-            elif req_format == 'worst':
-                video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
-            elif req_format in ('-1', 'all'):
-                video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
-            else:
-                # Specific formats. We pick the first in a slash-delimeted sequence.
-                # For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
-                req_formats = req_format.split('/')
-                video_url_list = None
-                for rf in req_formats:
-                    if rf in url_map:
-                        video_url_list = [(rf, url_map[rf])]
-                        break
-                if video_url_list is None:
-                    self._downloader.trouble(u'ERROR: requested format not available')
-                    return
-        else:
-            self._downloader.trouble(u'ERROR: no conn or url_encoded_fmt_stream_map information found in video info')
-            return
-
-        results = []
-        for format_param, video_real_url in video_url_list:
-            # Extension
-            video_extension = self._video_extensions.get(format_param, 'flv')
-
-            video_format = '{0} - {1}'.format(format_param if format_param else video_extension,
-                                              self._video_dimensions.get(format_param, '???'))
-
-            results.append({
-                'id':       video_id,
-                'url':      video_real_url,
-                'uploader': video_uploader,
-                'uploader_id': video_uploader_id,
-                'upload_date':  upload_date,
-                'title':    video_title,
-                'ext':      video_extension,
-                'format':   video_format,
-                'thumbnail':    video_thumbnail,
-                'description':  video_description,
-                'player_url':   player_url,
-                'subtitles':    video_subtitles,
-                'duration':     video_duration
-            })
-        return results
-
-
-class MetacafeIE(InfoExtractor):
-    """Information Extractor for metacafe.com."""
-
-    _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
-    _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
-    _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)
-
-    def _real_initialize(self):
-        # Retrieve disclaimer
-        request = compat_urllib_request.Request(self._DISCLAIMER)
-        try:
-            self.report_disclaimer()
-            disclaimer = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to retrieve disclaimer: %s' % compat_str(err))
-            return
-
-        # Confirm age
-        disclaimer_form = {
-            'filters': '0',
-            'submit': "Continue - I'm over 18",
-            }
-        request = compat_urllib_request.Request(self._FILTER_POST, compat_urllib_parse.urlencode(disclaimer_form))
-        try:
-            self.report_age_confirmation()
-            disclaimer = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to confirm age: %s' % compat_str(err))
-            return
-
-    def _real_extract(self, url):
-        # Extract id and simplified title from URL
-        mobj = re.match(self._VALID_URL, url)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1)
-
-        # 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
-
-        # 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.trouble(u'ERROR: unable retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract URL, uploader and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
-        if mobj is not None:
-            mediaURL = compat_urllib_parse.unquote(mobj.group(1))
-            video_extension = mediaURL[-3:]
-
-            # Extract gdaKey if available
-            mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
-            if mobj is None:
-                video_url = mediaURL
-            else:
-                gdaKey = mobj.group(1)
-                video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
-        else:
-            mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: unable to extract media URL')
-                return
-            vardict = compat_parse_qs(mobj.group(1))
-            if 'mediaData' not in vardict:
-                self._downloader.trouble(u'ERROR: unable to extract media URL')
-                return
-            mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: unable to extract media URL')
-                return
-            mediaURL = mobj.group(1).replace('\\/', '/')
-            video_extension = mediaURL[-3:]
-            video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
-
-        mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_title = mobj.group(1).decode('utf-8')
-
-        mobj = re.search(r'submitter=(.*?);', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-            return
-        video_uploader = mobj.group(1)
-
-        return [{
-            'id':       video_id.decode('utf-8'),
-            'url':      video_url.decode('utf-8'),
-            'uploader': video_uploader.decode('utf-8'),
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      video_extension.decode('utf-8'),
-        }]
-
-
-class DailymotionIE(InfoExtractor):
-    """Information Extractor for Dailymotion"""
-
-    _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^/]+)'
-    IE_NAME = u'dailymotion'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
-
-    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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1).split('_')[0].split('?')[0]
-
-        video_extension = 'mp4'
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url)
-        request.add_header('Cookie', 'family_filter=off')
-        try:
-            self.report_download_webpage(video_id)
-            webpage_bytes = compat_urllib_request.urlopen(request).read()
-            webpage = webpage_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract URL, uploader and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'\s*var flashvars = (.*)', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract media URL')
-            return
-        flashvars = compat_urllib_parse.unquote(mobj.group(1))
-
-        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)
-                break
-        else:
-            self._downloader.trouble(u'ERROR: unable to extract video URL')
-            return
-
-        mobj = re.search(r'"' + max_quality + r'":"(.+?)"', flashvars)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video URL')
-            return
-
-        video_url = compat_urllib_parse.unquote(mobj.group(1)).replace('\\/', '/')
-
-        # TODO: support choosing qualities
-
-        mobj = re.search(r'<meta property="og:title" content="(?P<title>[^"]*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_title = unescapeHTML(mobj.group('title'))
-
-        video_uploader = None
-        mobj = re.search(r'(?im)<span class="owner[^\"]+?">[^<]+?<a [^>]+?>([^<]+?)</a>', webpage)
-        if mobj is None:
-            # lookin for official user
-            mobj_official = re.search(r'<span rel="author"[^>]+?>([^<]+?)</span>', webpage)
-            if mobj_official is None:
-                self._downloader.trouble(u'WARNING: unable to extract uploader nickname')
-            else:
-                video_uploader = mobj_official.group(1)
-        else:
-            video_uploader = mobj.group(1)
-
-        video_upload_date = None
-        mobj = re.search(r'<div class="[^"]*uploaded_cont[^"]*" title="[^"]*">([0-9]{2})-([0-9]{2})-([0-9]{4})</div>', webpage)
-        if mobj is not None:
-            video_upload_date = mobj.group(3) + mobj.group(2) + mobj.group(1)
-
-        return [{
-            'id':       video_id,
-            'url':      video_url,
-            'uploader': video_uploader,
-            'upload_date':  video_upload_date,
-            'title':    video_title,
-            'ext':      video_extension,
-        }]
-
-
-class PhotobucketIE(InfoExtractor):
-    """Information extractor for photobucket.com."""
-
-    _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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1)
-
-        video_extension = 'flv'
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url)
-        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.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract URL, uploader, and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract media URL')
-            return
-        mediaURL = compat_urllib_parse.unquote(mobj.group(1))
-
-        video_url = mediaURL
-
-        mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_title = mobj.group(1).decode('utf-8')
-
-        video_uploader = mobj.group(2).decode('utf-8')
-
-        return [{
-            'id':       video_id.decode('utf-8'),
-            'url':      video_url.decode('utf-8'),
-            'uploader': video_uploader,
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      video_extension.decode('utf-8'),
-        }]
-
-
-class YahooIE(InfoExtractor):
-    """Information extractor for video.yahoo.com."""
-
-    _WORKING = False
-    # _VALID_URL matches all Yahoo! Video URLs
-    # _VPAGE_URL matches only the extractable '/watch/' URLs
-    _VALID_URL = r'(?:http://)?(?:[a-z]+\.)?video\.yahoo\.com/(?:watch|network)/([0-9]+)(?:/|\?v=)([0-9]+)(?:[#\?].*)?'
-    _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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(2)
-        video_extension = 'flv'
-
-        # Rewrite valid but non-extractable URLs as
-        # extractable English language /watch/ URLs
-        if re.match(self._VPAGE_URL, url) is None:
-            request = compat_urllib_request.Request(url)
-            try:
-                webpage = compat_urllib_request.urlopen(request).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-                return
-
-            mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: Unable to extract id field')
-                return
-            yahoo_id = mobj.group(1)
-
-            mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
-            if mobj is None:
-                self._downloader.trouble(u'ERROR: Unable to extract vid field')
-                return
-            yahoo_vid = mobj.group(1)
-
-            url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
-            return self._real_extract(url, new_video=False)
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url)
-        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.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract uploader and title from webpage
-        self.report_extraction(video_id)
-        mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video title')
-            return
-        video_title = mobj.group(1).decode('utf-8')
-
-        mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video uploader')
-            return
-        video_uploader = mobj.group(1).decode('utf-8')
-
-        # Extract video thumbnail
-        mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
-            return
-        video_thumbnail = mobj.group(1).decode('utf-8')
-
-        # Extract video description
-        mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video description')
-            return
-        video_description = mobj.group(1).decode('utf-8')
-        if not video_description:
-            video_description = 'No description available.'
-
-        # Extract video height and width
-        mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video height')
-            return
-        yv_video_height = mobj.group(1)
-
-        mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract video width')
-            return
-        yv_video_width = mobj.group(1)
-
-        # Retrieve video playlist to extract media URL
-        # I'm not completely sure what all these options are, but we
-        # seem to need most of them, otherwise the server sends a 401.
-        yv_lg = 'R0xx6idZnW2zlrKP8xxAIR'  # not sure what this represents
-        yv_bitrate = '700'  # according to Wikipedia this is hard-coded
-        request = compat_urllib_request.Request('http://cosmos.bcst.yahoo.com/up/yep/process/getPlaylistFOP.php?node_id=' + video_id +
-                '&tech=flash&mode=playlist&lg=' + yv_lg + '&bitrate=' + yv_bitrate + '&vidH=' + yv_video_height +
-                '&vidW=' + yv_video_width + '&swf=as3&rd=video.yahoo.com&tk=null&adsupported=v1,v2,&eventid=1301797')
-        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.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Extract media URL from playlist XML
-        mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Unable to extract media URL')
-            return
-        video_url = compat_urllib_parse.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
-        video_url = unescapeHTML(video_url)
-
-        return [{
-            'id':       video_id.decode('utf-8'),
-            'url':      video_url,
-            'uploader': video_uploader,
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      video_extension.decode('utf-8'),
-            'thumbnail':    video_thumbnail.decode('utf-8'),
-            'description':  video_description,
-        }]
-
-
-class VimeoIE(InfoExtractor):
-    """Information extractor for vimeo.com."""
-
-    # _VALID_URL matches Vimeo URLs
-    _VALID_URL = r'(?:https?://)?(?:(?:www|player).)?vimeo\.com/(?:(?:groups|album)/[^/]+/)?(?:videos?/)?([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)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(1)
-
-        # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request(url, None, std_headers)
-        try:
-            self.report_download_webpage(video_id)
-            webpage_bytes = compat_urllib_request.urlopen(request).read()
-            webpage = webpage_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-
-        # Now we begin extracting as much information as we can from what we
-        # retrieved. First we extract the information common to all extractors,
-        # and latter we extract those that are Vimeo specific.
-        self.report_extraction(video_id)
-
-        # Extract the config JSON
-        try:
-            config = webpage.split(' = {config:')[1].split(',assets:')[0]
-            config = json.loads(config)
-        except:
-            self._downloader.trouble(u'ERROR: unable to extract info section')
-            return
-
-        # Extract title
-        video_title = config["video"]["title"]
-
-        # Extract uploader and uploader_id
-        video_uploader = config["video"]["owner"]["name"]
-        video_uploader_id = config["video"]["owner"]["url"].split('/')[-1]
-
-        # Extract video thumbnail
-        video_thumbnail = config["video"]["thumbnail"]
-
-        # Extract video description
-        video_description = get_element_by_attribute("itemprop", "description", webpage)
-        if video_description: video_description = clean_html(video_description)
-        else: video_description = ''
-
-        # Extract upload date
-        video_upload_date = None
-        mobj = re.search(r'<meta itemprop="dateCreated" content="(\d{4})-(\d{2})-(\d{2})T', webpage)
-        if mobj is not None:
-            video_upload_date = mobj.group(1) + mobj.group(2) + mobj.group(3)
-
-        # Vimeo specific: extract request signature and timestamp
-        sig = config['request']['signature']
-        timestamp = config['request']['timestamp']
-
-        # Vimeo specific: extract video codec and quality information
-        # First consider quality, then codecs, then take everything
-        # TODO bind to format param
-        codecs = [('h264', 'mp4'), ('vp8', 'flv'), ('vp6', 'flv')]
-        files = { 'hd': [], 'sd': [], 'other': []}
-        for codec_name, codec_extension in codecs:
-            if codec_name in config["video"]["files"]:
-                if 'hd' in config["video"]["files"][codec_name]:
-                    files['hd'].append((codec_name, codec_extension, 'hd'))
-                elif 'sd' in config["video"]["files"][codec_name]:
-                    files['sd'].append((codec_name, codec_extension, 'sd'))
-                else:
-                    files['other'].append((codec_name, codec_extension, config["video"]["files"][codec_name][0]))
-
-        for quality in ('hd', 'sd', 'other'):
-            if len(files[quality]) > 0:
-                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))
-                break
-        else:
-            self._downloader.trouble(u'ERROR: no known codec found')
-            return
-
-        video_url = "http://player.vimeo.com/play_redirect?clip_id=%s&sig=%s&time=%s&quality=%s&codecs=%s&type=moogaloop_local&embed_location=" \
-                    %(video_id, sig, timestamp, video_quality, video_codec.upper())
-
-        return [{
-            'id':       video_id,
-            'url':      video_url,
-            'uploader': video_uploader,
-            'uploader_id': video_uploader_id,
-            'upload_date':  video_upload_date,
-            'title':    video_title,
-            'ext':      video_extension,
-            'thumbnail':    video_thumbnail,
-            'description':  video_description,
-        }]
-
-
-class ArteTvIE(InfoExtractor):
-    """arte.tv information extractor."""
-
-    _VALID_URL = r'(?:http://)?videos\.arte\.tv/(?:fr|de)/videos/.*'
-    _LIVE_URL = r'index-[0-9]+\.html$'
-
-    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):
-        self._downloader.increment_downloads()
-        request = compat_urllib_request.Request(url)
-        try:
-            self.report_download_webpage(url)
-            webpage = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-        except ValueError as err:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-        return webpage
-
-    def grep_webpage(self, url, regex, regexFlags, matchTuples):
-        page = self.fetch_webpage(url)
-        mobj = re.search(regex, page, regexFlags)
-        info = {}
-
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        for (i, key, err) in matchTuples:
-            if mobj.group(i) is None:
-                self._downloader.trouble(err)
-                return
-            else:
-                info[key] = mobj.group(i)
-
-        return info
-
-    def extractLiveStream(self, url):
-        video_lang = url.split('/')[-4]
-        info = self.grep_webpage(
-            url,
-            r'src="(.*?/videothek_js.*?\.js)',
-            0,
-            [
-                (1, 'url', u'ERROR: Invalid URL: %s' % url)
-            ]
-        )
-        http_host = url.split('/')[2]
-        next_url = 'http://%s%s' % (http_host, compat_urllib_parse.unquote(info.get('url')))
-        info = self.grep_webpage(
-            next_url,
-            r'(s_artestras_scst_geoFRDE_' + video_lang + '.*?)\'.*?' +
-                '(http://.*?\.swf).*?' +
-                '(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)
-            ]
-        )
-        video_url = u'%s/%s' % (info.get('url'), info.get('path'))
-
-    def extractPlus7Stream(self, url):
-        video_lang = url.split('/')[-3]
-        info = self.grep_webpage(
-            url,
-            r'param name="movie".*?videorefFileUrl=(http[^\'"&]*)',
-            0,
-            [
-                (1, 'url', u'ERROR: Invalid URL: %s' % url)
-            ]
-        )
-        next_url = compat_urllib_parse.unquote(info.get('url'))
-        info = self.grep_webpage(
-            next_url,
-            r'<video lang="%s" ref="(http[^\'"&]*)' % video_lang,
-            0,
-            [
-                (1, 'url', u'ERROR: Could not find <video> tag: %s' % url)
-            ]
-        )
-        next_url = compat_urllib_parse.unquote(info.get('url'))
-
-        info = self.grep_webpage(
-            next_url,
-            r'<video id="(.*?)".*?>.*?' +
-                '<name>(.*?)</name>.*?' +
-                '<dateVideo>(.*?)</dateVideo>.*?' +
-                '<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)
-            ]
-        )
-
-        return {
-            'id':           info.get('id'),
-            'url':          compat_urllib_parse.unquote(info.get('url')),
-            'uploader':     u'arte.tv',
-            'upload_date':  info.get('date'),
-            'title':        info.get('title').decode('utf-8'),
-            'ext':          u'mp4',
-            'format':       u'NA',
-            'player_url':   None,
-        }
-
-    def _real_extract(self, url):
-        video_id = url.split('/')[-1]
-        self.report_extraction(video_id)
-
-        if re.search(self._LIVE_URL, video_id) is not None:
-            self.extractLiveStream(url)
-            return
-        else:
-            info = self.extractPlus7Stream(url)
-
-        return [info]
-
-
-class GenericIE(InfoExtractor):
-    """Generic last-resort information extractor."""
-
-    _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."""
-        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)
-
-    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."""
-        class HeadRequest(compat_urllib_request.Request):
-            def get_method(self):
-                return "HEAD"
-
-        class HEADRedirectHandler(compat_urllib_request.HTTPRedirectHandler):
-            """
-            Subclass the HTTPRedirectHandler to make it use our
-            HeadRequest also on the redirected URL
-            """
-            def redirect_request(self, req, fp, code, msg, headers, newurl):
-                if code in (301, 302, 303, 307):
-                    newurl = newurl.replace(' ', '%20')
-                    newheaders = dict((k,v) for k,v in req.headers.items()
-                                      if k.lower() not in ("content-length", "content-type"))
-                    return HeadRequest(newurl,
-                                       headers=newheaders,
-                                       origin_req_host=req.get_origin_req_host(),
-                                       unverifiable=True)
-                else:
-                    raise compat_urllib_error.HTTPError(req.get_full_url(), code, msg, headers, fp)
-
-        class HTTPMethodFallback(compat_urllib_request.BaseHandler):
-            """
-            Fallback to GET if HEAD is not allowed (405 HTTP error)
-            """
-            def http_error_405(self, req, fp, code, msg, headers):
-                fp.read()
-                fp.close()
-
-                newheaders = dict((k,v) for k,v in req.headers.items()
-                                  if k.lower() not in ("content-length", "content-type"))
-                return self.parent.open(compat_urllib_request.Request(req.get_full_url(),
-                                                 headers=newheaders,
-                                                 origin_req_host=req.get_origin_req_host(),
-                                                 unverifiable=True))
-
-        # Build our opener
-        opener = compat_urllib_request.OpenerDirector()
-        for handler in [compat_urllib_request.HTTPHandler, compat_urllib_request.HTTPDefaultErrorHandler,
-                        HTTPMethodFallback, HEADRedirectHandler,
-                        compat_urllib_error.HTTPErrorProcessor, compat_urllib_request.HTTPSHandler]:
-            opener.add_handler(handler())
-
-        response = opener.open(HeadRequest(url))
-        new_url = response.geturl()
-
-        if url == new_url:
-            return False
-
-        self.report_following_redirect(new_url)
-        self._downloader.download([new_url])
-        return True
-
-    def _real_extract(self, url):
-        if self._test_redirect(url): return
-
-        video_id = url.split('/')[-1]
-        request = compat_urllib_request.Request(url)
-        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.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-        except ValueError as err:
-            # since this is the last-resort InfoExtractor, if
-            # this error is thrown, it'll be thrown here
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        self.report_extraction(video_id)
-        # Start with something easy: JW Player in SWFObject
-        mobj = re.search(r'flashvars: [\'"](?:.*&)?file=(http[^\'"&]*)', webpage)
-        if mobj is None:
-            # Broaden the search a little bit
-            mobj = re.search(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        # It's possible that one of the regexes
-        # matched, but returned an empty group:
-        if mobj.group(1) is None:
-            self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
-            return
-
-        video_url = compat_urllib_parse.unquote(mobj.group(1))
-        video_id = os.path.basename(video_url)
-
-        # here's a fun little line of code for you:
-        video_extension = os.path.splitext(video_id)[1][1:]
-        video_id = os.path.splitext(video_id)[0]
-
-        # it's tempting to parse this further, but you would
-        # have to take into account all the variations like
-        #   Video Title - Site Name
-        #   Site Name | Video Title
-        #   Video Title - Tagline | Site Name
-        # and so on and so forth; it's just not practical
-        mobj = re.search(r'<title>(.*)</title>', webpage)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_title = mobj.group(1)
-
-        # video uploader is domain name
-        mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: unable to extract title')
-            return
-        video_uploader = mobj.group(1)
-
-        return [{
-            'id':       video_id,
-            'url':      video_url,
-            'uploader': video_uploader,
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      video_extension,
-        }]
-
-
-class YoutubeSearchIE(InfoExtractor):
-    """Information Extractor for YouTube search queries."""
-    _VALID_URL = r'ytsearch(\d+|all)?:[\s\S]+'
-    _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
-    _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())
-        self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
-
-    def _real_extract(self, query):
-        mobj = re.match(self._VALID_URL, query)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
-            return
-
-        prefix, query = query.split(':')
-        prefix = prefix[8:]
-        query = query.encode('utf-8')
-        if prefix == '':
-            self._download_n_results(query, 1)
-            return
-        elif prefix == 'all':
-            self._download_n_results(query, self._max_youtube_results)
-            return
-        else:
-            try:
-                n = int(prefix)
-                if n <= 0:
-                    self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
-                    return
-                elif n > self._max_youtube_results:
-                    self._downloader.to_stderr(u'WARNING: 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
-            except ValueError: # parsing prefix as integer fails
-                self._download_n_results(query, 1)
-                return
-
-    def _download_n_results(self, query, n):
-        """Downloads a specified number of results for a query"""
-
-        video_ids = []
-        pagenum = 0
-        limit = n
-
-        while (50 * pagenum) < limit:
-            self.report_download_page(query, pagenum+1)
-            result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
-            request = compat_urllib_request.Request(result_url)
-            try:
-                data = compat_urllib_request.urlopen(request).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: unable to download API page: %s' % compat_str(err))
-                return
-            api_response = json.loads(data)['data']
-
-            new_ids = list(video['id'] for video in api_response['items'])
-            video_ids += new_ids
-
-            limit = min(n, api_response['totalItems'])
-            pagenum += 1
-
-        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
-
-
-class GoogleSearchIE(InfoExtractor):
-    """Information Extractor for Google Video search queries."""
-    _VALID_URL = r'gvsearch(\d+|all)?:[\s\S]+'
-    _TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
-    _VIDEO_INDICATOR = r'<a href="http://video\.google\.com/videoplay\?docid=([^"\&]+)'
-    _MORE_PAGES_INDICATOR = r'class="pn" id="pnnext"'
-    _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))
-
-    def _real_extract(self, query):
-        mobj = re.match(self._VALID_URL, query)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
-            return
-
-        prefix, query = query.split(':')
-        prefix = prefix[8:]
-        query = query.encode('utf-8')
-        if prefix == '':
-            self._download_n_results(query, 1)
-            return
-        elif prefix == 'all':
-            self._download_n_results(query, self._max_google_results)
-            return
-        else:
-            try:
-                n = int(prefix)
-                if n <= 0:
-                    self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
-                    return
-                elif n > self._max_google_results:
-                    self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
-                    n = self._max_google_results
-                self._download_n_results(query, n)
-                return
-            except ValueError: # parsing prefix as integer fails
-                self._download_n_results(query, 1)
-                return
-
-    def _download_n_results(self, query, n):
-        """Downloads a specified number of results for a query"""
-
-        video_ids = []
-        pagenum = 0
-
-        while True:
-            self.report_download_page(query, pagenum)
-            result_url = self._TEMPLATE_URL % (compat_urllib_parse.quote_plus(query), pagenum*10)
-            request = compat_urllib_request.Request(result_url)
-            try:
-                page = compat_urllib_request.urlopen(request).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
-                return
-
-            # Extract video identifiers
-            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                video_id = mobj.group(1)
-                if video_id not in video_ids:
-                    video_ids.append(video_id)
-                    if len(video_ids) == n:
-                        # Specified n videos reached
-                        for id in video_ids:
-                            self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
-                        return
-
-            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                for id in video_ids:
-                    self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
-                return
-
-            pagenum = pagenum + 1
-
-
-class YahooSearchIE(InfoExtractor):
-    """Information Extractor for Yahoo! Video search queries."""
-
-    _WORKING = False
-    _VALID_URL = r'yvsearch(\d+|all)?:[\s\S]+'
-    _TEMPLATE_URL = 'http://video.yahoo.com/search/?p=%s&o=%s'
-    _VIDEO_INDICATOR = r'href="http://video\.yahoo\.com/watch/([0-9]+/[0-9]+)"'
-    _MORE_PAGES_INDICATOR = r'\s*Next'
-    _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))
-
-    def _real_extract(self, query):
-        mobj = re.match(self._VALID_URL, query)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
-            return
-
-        prefix, query = query.split(':')
-        prefix = prefix[8:]
-        query = query.encode('utf-8')
-        if prefix == '':
-            self._download_n_results(query, 1)
-            return
-        elif prefix == 'all':
-            self._download_n_results(query, self._max_yahoo_results)
-            return
-        else:
-            try:
-                n = int(prefix)
-                if n <= 0:
-                    self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
-                    return
-                elif n > self._max_yahoo_results:
-                    self._downloader.to_stderr(u'WARNING: yvsearch returns max %i results (you requested %i)' % (self._max_yahoo_results, n))
-                    n = self._max_yahoo_results
-                self._download_n_results(query, n)
-                return
-            except ValueError: # parsing prefix as integer fails
-                self._download_n_results(query, 1)
-                return
-
-    def _download_n_results(self, query, n):
-        """Downloads a specified number of results for a query"""
-
-        video_ids = []
-        already_seen = set()
-        pagenum = 1
-
-        while True:
-            self.report_download_page(query, pagenum)
-            result_url = self._TEMPLATE_URL % (compat_urllib_parse.quote_plus(query), pagenum)
-            request = compat_urllib_request.Request(result_url)
-            try:
-                page = compat_urllib_request.urlopen(request).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
-                return
-
-            # Extract video identifiers
-            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                video_id = mobj.group(1)
-                if video_id not in already_seen:
-                    video_ids.append(video_id)
-                    already_seen.add(video_id)
-                    if len(video_ids) == n:
-                        # Specified n videos reached
-                        for id in video_ids:
-                            self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
-                        return
-
-            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                for id in video_ids:
-                    self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
-                return
-
-            pagenum = pagenum + 1
-
-
-class YoutubePlaylistIE(InfoExtractor):
-    """Information Extractor for YouTube playlists."""
-
-    _VALID_URL = r'(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:(?:course|view_play_list|my_playlists|artist|playlist)\?.*?(p|a|list)=|user/.*?/user/|p/|user/.*?#[pg]/c/)(?:PL|EC)?|PL|EC)([0-9A-Za-z-_]{10,})(?:/.*?/([0-9A-Za-z_-]+))?.*'
-    _TEMPLATE_URL = 'http://www.youtube.com/%s?%s=%s&page=%s&gl=US&hl=en'
-    _VIDEO_INDICATOR_TEMPLATE = r'/watch\?v=(.+?)&amp;([^&"]+&amp;)*list=.*?%s'
-    _MORE_PAGES_INDICATOR = u"Next \N{RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK}"
-    IE_NAME = u'youtube:playlist'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_page(self, playlist_id, pagenum):
-        """Report attempt to download playlist page with given number."""
-        self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
-
-    def _real_extract(self, url):
-        # Extract playlist id
-        mobj = re.match(self._VALID_URL, url)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
-            return
-
-        # Single video case
-        if mobj.group(3) is not None:
-            self._downloader.download([mobj.group(3)])
-            return
-
-        # Download playlist pages
-        # prefix is 'p' as default for playlists but there are other types that need extra care
-        playlist_prefix = mobj.group(1)
-        if playlist_prefix == 'a':
-            playlist_access = 'artist'
-        else:
-            playlist_prefix = 'p'
-            playlist_access = 'view_play_list'
-        playlist_id = mobj.group(2)
-        video_ids = []
-        pagenum = 1
-
-        while True:
-            self.report_download_page(playlist_id, pagenum)
-            url = self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum)
-            request = compat_urllib_request.Request(url)
-            try:
-                page = compat_urllib_request.urlopen(request).read().decode('utf-8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
-                return
-
-            # Extract video identifiers
-            ids_in_page = []
-            for mobj in re.finditer(self._VIDEO_INDICATOR_TEMPLATE % playlist_id, page):
-                if mobj.group(1) not in ids_in_page:
-                    ids_in_page.append(mobj.group(1))
-            video_ids.extend(ids_in_page)
-
-            if self._MORE_PAGES_INDICATOR not in page:
-                break
-            pagenum = pagenum + 1
-
-        total = 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]
-
-        if len(video_ids) == 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(video_ids)))
-
-        for id in video_ids:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
-        return
-
-
-class YoutubeChannelIE(InfoExtractor):
-    """Information Extractor for YouTube channels."""
-
-    _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}"
-    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 _real_extract(self, url):
-        # Extract channel id
-        mobj = re.match(self._VALID_URL, url)
-        if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid url: %s' % url)
-            return
-
-        # Download channel pages
-        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.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
-                return
+        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.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+                return
 
             # Extract video identifiers
             ids_in_page = []
@@ -4466,9 +1943,8 @@ class BlipTVUserIE(InfoExtractor):
 
         while True:
             self.report_download_page(username, pagenum)
-
-            request = compat_urllib_request.Request( page_base + "&page=" + str(pagenum) )
-
+            url = page_base + "&page=" + str(pagenum)
+            request = compat_urllib_request.Request( url )
             try:
                 page = compat_urllib_request.urlopen(request).read().decode('utf-8')
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
@@ -4515,10 +1991,6 @@ class DepositFilesIE(InfoExtractor):
     """Information extractor for depositfiles.com"""
 
     _VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles\.com/(?:../(?#locale))?files/(.+)'
-    IE_NAME = u'DepositFiles'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
 
     def report_download_webpage(self, file_id):
         """Report webpage download."""
@@ -4578,62 +2050,14 @@ class DepositFilesIE(InfoExtractor):
 class FacebookIE(InfoExtractor):
     """Information Extractor for Facebook"""
 
-    _WORKING = False
     _VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook\.com/(?:video/video|photo)\.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
     _LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
     _NETRC_MACHINE = 'facebook'
-    _available_formats = ['video', 'highqual', 'lowqual']
-    _video_extensions = {
-        'video': 'mp4',
-        'highqual': 'mp4',
-        'lowqual': 'mp4',
-    }
     IE_NAME = u'facebook'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def _reporter(self, message):
-        """Add header and report message."""
-        self._downloader.to_screen(u'[facebook] %s' % message)
-
     def report_login(self):
         """Report attempt to log in."""
-        self._reporter(u'Logging in')
-
-    def report_video_webpage_download(self, video_id):
-        """Report attempt to download video webpage."""
-        self._reporter(u'%s: Downloading video webpage' % video_id)
-
-    def report_information_extraction(self, video_id):
-        """Report attempt to extract video information."""
-        self._reporter(u'%s: Extracting video information' % video_id)
-
-    def _parse_page(self, video_webpage):
-        """Extract video information from page"""
-        # General data
-        data = {'title': r'\("video_title", "(.*?)"\)',
-            'description': r'<div class="datawrap">(.*?)</div>',
-            'owner': r'\("video_owner_name", "(.*?)"\)',
-            'thumbnail':  r'\("thumb_url", "(?P<THUMB>.*?)"\)',
-            }
-        video_info = {}
-        for piece in data.keys():
-            mobj = re.search(data[piece], video_webpage)
-            if mobj is not None:
-                video_info[piece] = compat_urllib_parse.unquote_plus(mobj.group(1).decode("unicode_escape"))
-
-        # Video urls
-        video_urls = {}
-        for fmt in self._available_formats:
-            mobj = re.search(r'\("%s_src\", "(.+?)"\)' % fmt, video_webpage)
-            if mobj is not None:
-                # URL is in a Javascript segment inside an escaped Unicode format within
-                # the generally utf-8 page
-                video_urls[fmt] = compat_urllib_parse.unquote_plus(mobj.group(1).decode("unicode_escape"))
-        video_info['video_urls'] = video_urls
-
-        return video_info
+        self._downloader.to_screen(u'[%s] Logging in' % self.IE_NAME)
 
     def _real_initialize(self):
         if self._downloader is None:
@@ -4656,7 +2080,7 @@ class FacebookIE(InfoExtractor):
                 else:
                     raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
             except (IOError, netrc.NetrcParseError) as err:
-                self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % compat_str(err))
+                self._downloader.report_warning(u'parsing .netrc: %s' % compat_str(err))
                 return
 
         if useremail is None:
@@ -4673,10 +2097,10 @@ class FacebookIE(InfoExtractor):
             self.report_login()
             login_results = compat_urllib_request.urlopen(request).read()
             if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
-                self._downloader.to_stderr(u'WARNING: unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
+                self._downloader.report_warning(u'unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
                 return
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.to_stderr(u'WARNING: unable to log in: %s' % compat_str(err))
+            self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
             return
 
     def _real_extract(self, url):
@@ -4686,100 +2110,39 @@ class FacebookIE(InfoExtractor):
             return
         video_id = mobj.group('ID')
 
-        # Get video webpage
-        self.report_video_webpage_download(video_id)
-        request = compat_urllib_request.Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
-        try:
-            page = compat_urllib_request.urlopen(request)
-            video_webpage = page.read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
-            return
-
-        # Start extracting information
-        self.report_information_extraction(video_id)
-
-        # Extract information
-        video_info = self._parse_page(video_webpage)
-
-        # uploader
-        if 'owner' not in video_info:
-            self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-            return
-        video_uploader = video_info['owner']
-
-        # title
-        if 'title' not in video_info:
-            self._downloader.trouble(u'ERROR: unable to extract video title')
-            return
-        video_title = video_info['title']
-        video_title = video_title.decode('utf-8')
-
-        # thumbnail image
-        if 'thumbnail' not in video_info:
-            self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
-            video_thumbnail = ''
-        else:
-            video_thumbnail = video_info['thumbnail']
-
-        # upload date
-        upload_date = None
-        if 'upload_date' in video_info:
-            upload_time = video_info['upload_date']
-            timetuple = email.utils.parsedate_tz(upload_time)
-            if timetuple is not None:
-                try:
-                    upload_date = time.strftime('%Y%m%d', timetuple[0:9])
-                except:
-                    pass
-
-        # description
-        video_description = video_info.get('description', 'No description available.')
+        url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
+        webpage = self._download_webpage(url, video_id)
 
-        url_map = video_info['video_urls']
-        if url_map:
-            # Decide which formats to download
-            req_format = self._downloader.params.get('format', None)
-            format_limit = self._downloader.params.get('format_limit', None)
-
-            if format_limit is not None and format_limit in self._available_formats:
-                format_list = self._available_formats[self._available_formats.index(format_limit):]
-            else:
-                format_list = self._available_formats
-            existing_formats = [x for x in format_list if x in url_map]
-            if len(existing_formats) == 0:
-                self._downloader.trouble(u'ERROR: no known formats available for video')
-                return
-            if req_format is None:
-                video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
-            elif req_format == 'worst':
-                video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
-            elif req_format == '-1':
-                video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
-            else:
-                # Specific format
-                if req_format not in url_map:
-                    self._downloader.trouble(u'ERROR: requested format not available')
-                    return
-                video_url_list = [(req_format, url_map[req_format])] # Specific format
+        BEFORE = '[["allowFullScreen","true"],["allowScriptAccess","always"],["salign","tl"],["scale","noscale"],["wmode","opaque"]].forEach(function(param) {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:
+            raise ExtractorError(u'Cannot parse data')
+        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']
+        if not video_url:
+            video_url = params['sd_src']
+        if not video_url:
+            raise ExtractorError(u'Cannot find video URL')
+        video_duration = int(params['video_duration'])
+
+        m = re.search('<h2 class="uiHeaderTitle">([^<]+)</h2>', webpage)
+        if not m:
+            raise ExtractorError(u'Cannot find title in webpage')
+        video_title = unescapeHTML(m.group(1))
 
-        results = []
-        for format_param, video_real_url in video_url_list:
-            # Extension
-            video_extension = self._video_extensions.get(format_param, 'mp4')
+        info = {
+            'id': video_id,
+            'title': video_title,
+            'url': video_url,
+            'ext': 'mp4',
+            'duration': video_duration,
+            'thumbnail': params['thumbnail_src'],
+        }
+        return [info]
 
-            results.append({
-                'id':       video_id.decode('utf-8'),
-                'url':      video_real_url.decode('utf-8'),
-                'uploader': video_uploader.decode('utf-8'),
-                'upload_date':  upload_date,
-                'title':    video_title,
-                'ext':      video_extension.decode('utf-8'),
-                'format':   (format_param is None and u'NA' or format_param.decode('utf-8')),
-                'thumbnail':    video_thumbnail.decode('utf-8'),
-                'description':  video_description.decode('utf-8'),
-            })
-        return results
 
 class BlipTVIE(InfoExtractor):
     """Information extractor for blip.tv"""
@@ -4802,12 +2165,24 @@ class BlipTVIE(InfoExtractor):
             self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
             return
 
+        urlp = compat_urllib_parse_urlparse(url)
+        if urlp.path.startswith('/play/'):
+            request = compat_urllib_request.Request(url)
+            response = compat_urllib_request.urlopen(request)
+            redirecturl = response.geturl()
+            rurlp = compat_urllib_parse_urlparse(redirecturl)
+            file_id = compat_parse_qs(rurlp.fragment)['file'][0].rpartition('/')[2]
+            url = 'http://blip.tv/a/a-' + file_id
+            return self._real_extract(url)
+
+
         if '?' in url:
             cchar = '&'
         else:
             cchar = '?'
         json_url = url + cchar + 'skin=json&version=2&no_wrap=1'
         request = compat_urllib_request.Request(json_url)
+        request.add_header('User-Agent', 'iTunes/10.6.1')
         self.report_extraction(mobj.group(1))
         info = None
         try:
@@ -4828,8 +2203,7 @@ class BlipTVIE(InfoExtractor):
                     'urlhandle': urlh
                 }
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'ERROR: unable to download video info webpage: %s' % compat_str(err))
         if info is None: # Regular URL
             try:
                 json_code_bytes = urlh.read()
@@ -4862,13 +2236,13 @@ class BlipTVIE(InfoExtractor):
                     'format': data['media']['mimeType'],
                     'thumbnail': data['thumbnailUrl'],
                     'description': data['description'],
-                    'player_url': data['embedUrl']
+                    'player_url': data['embedUrl'],
+                    'user_agent': 'iTunes/10.6.1',
                 }
             except (ValueError,KeyError) as err:
                 self._downloader.trouble(u'ERROR: unable to parse video information: %s' % repr(err))
                 return
 
-        std_headers['User-Agent'] = 'iTunes/10.6.1'
         return [info]
 
 
@@ -4881,10 +2255,6 @@ class MyVideoIE(InfoExtractor):
     def __init__(self, downloader=None):
         InfoExtractor.__init__(self, downloader)
 
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[myvideo] %s: Downloading webpage' % video_id)
-
     def report_extraction(self, video_id):
         """Report information extraction."""
         self._downloader.to_screen(u'[myvideo] %s: Extracting information' % video_id)
@@ -4898,16 +2268,11 @@ class MyVideoIE(InfoExtractor):
         video_id = mobj.group(1)
 
         # Get video webpage
-        request = compat_urllib_request.Request('http://www.myvideo.de/watch/%s' % video_id)
-        try:
-            self.report_download_webpage(video_id)
-            webpage = compat_urllib_request.urlopen(request).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+        webpage_url = 'http://www.myvideo.de/watch/%s' % video_id
+        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.trouble(u'ERROR: unable to extract media URL')
@@ -4946,7 +2311,6 @@ class ComedyCentralIE(InfoExtractor):
                               (the-colbert-report-(videos|collections)/(?P<clipID>[0-9]+)/[^/]*/(?P<cntitle>.*?))
                               |(watch/(?P<date>[^/]*)/(?P<tdstitle>.*)))))
                      $"""
-    IE_NAME = u'comedycentral'
 
     _available_formats = ['3500', '2200', '1700', '1200', '750', '400']
 
@@ -4967,23 +2331,20 @@ class ComedyCentralIE(InfoExtractor):
         '400': '384x216',
     }
 
-    def suitable(self, url):
+    @classmethod
+    def suitable(cls, url):
         """Receives a URL and returns True if suitable for this IE."""
-        return re.match(self._VALID_URL, url, re.VERBOSE) is not None
+        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):
-        self._downloader.to_screen(u'[comedycentral] %s: Downloading configuration' % 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))
 
     def report_index_download(self, episode_id):
         self._downloader.to_screen(u'[comedycentral] %s: Downloading show index' % episode_id)
 
-    def report_player_url(self, episode_id):
-        self._downloader.to_screen(u'[comedycentral] %s: Determining player URL' % episode_id)
-
-
     def _print_formats(self, formats):
         print('Available formats:')
         for x in formats:
@@ -5022,6 +2383,7 @@ class ComedyCentralIE(InfoExtractor):
         try:
             htmlHandle = compat_urllib_request.urlopen(req)
             html = htmlHandle.read()
+            webpage = html.decode('utf-8')
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
             self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
             return
@@ -5036,28 +2398,19 @@ class ComedyCentralIE(InfoExtractor):
                 return
             epTitle = mobj.group('episode')
 
-        mMovieParams = re.findall('(?:<param name="movie" value="|var url = ")(http://media.mtvnservices.com/([^"]*(?:episode|video).*?:.*?))"', html)
+        mMovieParams = re.findall('(?:<param name="movie" value="|var url = ")(http://media.mtvnservices.com/([^"]*(?:episode|video).*?:.*?))"', webpage)
 
         if len(mMovieParams) == 0:
             # The Colbert Report embeds the information in a without
             # a URL prefix; so extract the alternate reference
             # and then add the URL prefix manually.
 
-            altMovieParams = re.findall('data-mgid="([^"]*(?:episode|video).*?:.*?)"', html)
+            altMovieParams = re.findall('data-mgid="([^"]*(?:episode|video).*?:.*?)"', webpage)
             if len(altMovieParams) == 0:
                 self._downloader.trouble(u'ERROR: unable to find Flash URL in webpage ' + url)
                 return
             else:
-                mMovieParams = [("http://media.mtvnservices.com/" + altMovieParams[0], altMovieParams[0])]
-
-        playerUrl_raw = mMovieParams[0][0]
-        self.report_player_url(epTitle)
-        try:
-            urlHandle = compat_urllib_request.urlopen(playerUrl_raw)
-            playerUrl = urlHandle.geturl()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to find out player URL: ' + compat_str(err))
-            return
+                mMovieParams = [("http://media.mtvnservices.com/" + altMovieParams[0], altMovieParams[0])]
 
         uri = mMovieParams[0][1]
         indexUrl = 'http://shadow.comedycentral.com/feeds/video_player/mrss/?' + compat_urllib_parse.urlencode({'uri': uri})
@@ -5072,7 +2425,7 @@ class ComedyCentralIE(InfoExtractor):
 
         idoc = xml.etree.ElementTree.fromstring(indexXml)
         itemEls = idoc.findall('.//item')
-        for itemEl in itemEls:
+        for partNum,itemEl in enumerate(itemEls):
             mediaId = itemEl.findall('./guid')[0].text
             shortMediaId = mediaId.split(':')[-1]
             showId = mediaId.split(':')[-2].replace('.com', '')
@@ -5082,7 +2435,7 @@ class ComedyCentralIE(InfoExtractor):
             configUrl = ('http://www.comedycentral.com/global/feeds/entertainment/media/mediaGenEntertainment.jhtml?' +
                         compat_urllib_parse.urlencode({'uri': mediaId}))
             configReq = compat_urllib_request.Request(configUrl)
-            self.report_config_download(epTitle)
+            self.report_config_download(epTitle, shortMediaId)
             try:
                 configXml = compat_urllib_request.urlopen(configReq).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
@@ -5104,7 +2457,7 @@ class ComedyCentralIE(InfoExtractor):
                 return
 
             # For now, just pick the highest bitrate
-            format,video_url = turls[-1]
+            format,rtmp_video_url = turls[-1]
 
             # Get the format arg from the arg stream
             req_format = self._downloader.params.get('format', None)
@@ -5112,18 +2465,16 @@ class ComedyCentralIE(InfoExtractor):
             # Select format if we can find one
             for f,v in turls:
                 if f == req_format:
-                    format, video_url = f, v
+                    format, rtmp_video_url = f, v
                     break
 
-            # Patch to download from alternative CDN, which does not
-            # break on current RTMPDump builds
-            broken_cdn = "rtmpe://viacomccstrmfs.fplive.net/viacomccstrm/gsp.comedystor/"
-            better_cdn = "rtmpe://cp10740.edgefcs.net/ondemand/mtvnorigin/gsp.comedystor/"
-
-            if video_url.startswith(broken_cdn):
-                video_url = video_url.replace(broken_cdn, better_cdn)
+            m = re.match(r'^rtmpe?://.*?/(?P<finalid>gsp.comedystor/.*)$', rtmp_video_url)
+            if not m:
+                raise ExtractorError(u'Cannot transform RTMP url')
+            base = 'http://mtvnmobile.vo.llnwd.net/kip0/_pxn=1+_pxI0=Ripod-h264+_pxL0=undefined+_pxM0=+_pxK=18639+_pxE=mp4/44620/mtvnorigin/'
+            video_url = base + m.group('finalid')
 
-            effTitle = showId + u'-' + epTitle
+            effTitle = showId + u'-' + epTitle + u' part ' + compat_str(partNum+1)
             info = {
                 'id': shortMediaId,
                 'url': video_url,
@@ -5134,9 +2485,7 @@ class ComedyCentralIE(InfoExtractor):
                 'format': format,
                 'thumbnail': None,
                 'description': officialTitle,
-                'player_url': None #playerUrl
             }
-
             results.append(info)
 
         return results
@@ -5208,7 +2557,7 @@ class EscapistIE(InfoExtractor):
             'uploader': showName,
             'upload_date': None,
             'title': showName,
-            'ext': 'flv',
+            'ext': 'mp4',
             'thumbnail': imgUrl,
             'description': description,
             'player_url': playerUrl,
@@ -5216,7 +2565,6 @@ class EscapistIE(InfoExtractor):
 
         return [info]
 
-
 class CollegeHumorIE(InfoExtractor):
     """Information extractor for collegehumor.com"""
 
@@ -5295,10 +2643,6 @@ class XVideosIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?xvideos\.com/video([0-9]+)(?:.*)'
     IE_NAME = u'xvideos'
 
-    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))
@@ -5310,15 +2654,7 @@ class XVideosIE(InfoExtractor):
             return
         video_id = mobj.group(1)
 
-        self.report_webpage(video_id)
-
-        request = compat_urllib_request.Request(r'http://www.xvideos.com/video' + video_id)
-        try:
-            webpage_bytes = compat_urllib_request.urlopen(request).read()
-            webpage = webpage_bytes.decode('utf-8', 'replace')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(url, video_id)
 
         self.report_extraction(video_id)
 
@@ -5417,7 +2753,7 @@ class SoundcloudIE(InfoExtractor):
             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.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
+            self._downloader.trouble(u'ERROR: unable to download stream definitions: %s' % compat_str(err))
             return
 
         streams = json.loads(stream_json)
@@ -5436,13 +2772,7 @@ class SoundcloudIE(InfoExtractor):
 
 class InfoQIE(InfoExtractor):
     """Information extractor for infoq.com"""
-
     _VALID_URL = r'^(?:https?://)?(?:www\.)?infoq\.com/[^/]+/[^/]+$'
-    IE_NAME = u'infoq'
-
-    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."""
@@ -5454,38 +2784,29 @@ class InfoQIE(InfoExtractor):
             self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
             return
 
-        self.report_webpage(url)
-
-        request = compat_urllib_request.Request(url)
-        try:
-            webpage = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
-            return
-
+        webpage = self._download_webpage(url, video_id=url)
         self.report_extraction(url)
 
-
         # Extract video URL
         mobj = re.search(r"jsclassref='([^']*)'", webpage)
         if mobj is None:
             self._downloader.trouble(u'ERROR: unable to extract video url')
             return
-        video_url = 'rtmpe://video.infoq.com/cfx/st/' + compat_urllib_parse.unquote(mobj.group(1).decode('base64'))
-
+        real_id = compat_urllib_parse.unquote(base64.b64decode(mobj.group(1).encode('ascii')).decode('utf-8'))
+        video_url = 'rtmpe://video.infoq.com/cfx/st/' + real_id
 
         # Extract title
         mobj = re.search(r'contentTitle = "(.*?)";', webpage)
         if mobj is None:
             self._downloader.trouble(u'ERROR: unable to extract video title')
             return
-        video_title = mobj.group(1).decode('utf-8')
+        video_title = mobj.group(1)
 
         # Extract description
         video_description = u'No description available.'
         mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', webpage)
         if mobj is not None:
-            video_description = mobj.group(1).decode('utf-8')
+            video_description = mobj.group(1)
 
         video_filename = video_url.split('/')[-1]
         video_id, extension = video_filename.split('.')
@@ -5635,8 +2956,7 @@ class StanfordOpenClassroomIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         if mobj.group('course') and mobj.group('video'): # A specific video
             course = mobj.group('course')
@@ -5673,12 +2993,9 @@ class StanfordOpenClassroomIE(InfoExtractor):
                 'upload_date': None,
             }
 
-            self.report_download_webpage(info['id'])
-            try:
-                coursepage = compat_urllib_request.urlopen(url).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: unable to download course info page: ' + compat_str(err))
-                return
+            coursepage = self._download_webpage(url, info['id'],
+                                        note='Downloading course info page',
+                                        errnote='Unable to download course info page')
 
             m = re.search('<h1>([^<]+)</h1>', coursepage)
             if m:
@@ -5702,7 +3019,6 @@ class StanfordOpenClassroomIE(InfoExtractor):
                 assert entry['type'] == 'reference'
                 results += self.extract(entry['url'])
             return results
-
         else: # Root page
             info = {
                 'id': 'Stanford OpenClassroom',
@@ -5741,10 +3057,6 @@ class MTVIE(InfoExtractor):
     _VALID_URL = r'^(?P<proto>https?://)?(?:www\.)?mtv\.com/videos/[^/]+/(?P<videoid>[0-9]+)/[^/]+$'
     IE_NAME = u'mtv'
 
-    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))
@@ -5757,14 +3069,8 @@ class MTVIE(InfoExtractor):
         if not mobj.group('proto'):
             url = 'http://' + url
         video_id = mobj.group('videoid')
-        self.report_webpage(video_id)
 
-        request = compat_urllib_request.Request(url)
-        try:
-            webpage = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(url, video_id)
 
         mobj = re.search(r'<meta name="mtv_vt" content="([^"]+)"/>', webpage)
         if mobj is None:
@@ -5827,20 +3133,15 @@ class MTVIE(InfoExtractor):
 
 
 class YoukuIE(InfoExtractor):
-
     _VALID_URL =  r'(?:http://)?v\.youku\.com/v_show/id_(?P<ID>[A-Za-z0-9]+)\.html'
-    IE_NAME = u'Youku'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
 
     def report_download_webpage(self, file_id):
         """Report webpage download."""
-        self._downloader.to_screen(u'[Youku] %s: Downloading webpage' % file_id)
+        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'[Youku] %s: Extracting information' % file_id)
+        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
 
     def _gen_sid(self):
         nowTime = int(time.time() * 1000)
@@ -5945,7 +3246,7 @@ class YoukuIE(InfoExtractor):
 class XNXXIE(InfoExtractor):
     """Information extractor for xnxx.com"""
 
-    _VALID_URL = r'^http://video\.xnxx\.com/video([0-9]+)/(.*)'
+    _VALID_URL = r'^(?:https?://)?video\.xnxx\.com/video([0-9]+)/(.*)'
     IE_NAME = u'xnxx'
     VIDEO_URL_RE = r'flv_url=(.*?)&amp;'
     VIDEO_TITLE_RE = r'<title>(.*?)\s+-\s+XNXX.COM'
@@ -6134,9 +3435,6 @@ class NBAIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:watch\.|www\.)?nba\.com/(?:nba/)?video(/[^?]*)(\?.*)?$'
     IE_NAME = u'nba'
 
-    def report_extraction(self, video_id):
-        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:
@@ -6147,14 +3445,7 @@ class NBAIE(InfoExtractor):
         if video_id.endswith('/index.html'):
             video_id = video_id[:-len('/index.html')]
 
-        self.report_extraction(video_id)
-        try:
-            urlh = compat_urllib_request.urlopen(url)
-            webpage_bytes = urlh.read()
-            webpage = webpage_bytes.decode('utf-8', 'ignore')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video info XML: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(url, video_id)
 
         video_url = u'http://ht-mobile.cdn.turner.com/nba/big' + video_id + '_nba_1280x720.mp4'
         def _findProp(rexp, default=None):
@@ -6207,17 +3498,25 @@ class JustinTVIE(InfoExtractor):
             return
 
         response = json.loads(webpage)
+        if type(response) != list:
+            error_text = response.get('error', 'unknown error')
+            self._downloader.trouble(u'ERROR: Justin.tv API: %s' % error_text)
+            return
         info = []
         for clip in response:
             video_url = clip['video_file_url']
             if video_url:
                 video_extension = os.path.splitext(video_url)[1][1:]
-                video_date = re.sub('-', '', clip['created_on'][:10])
+                video_date = re.sub('-', '', clip['start_time'][:10])
+                video_uploader_id = clip.get('user_id', clip.get('channel_id'))
+                video_id = clip['id']
+                video_title = clip.get('title', video_id)
                 info.append({
-                    'id': clip['id'],
+                    'id': video_id,
                     'url': video_url,
-                    'title': clip['title'],
-                    'uploader': clip.get('user_id', clip.get('channel_id')),
+                    'title': video_title,
+                    'uploader': clip.get('channel_name', video_uploader_id),
+                    'uploader_id': video_uploader_id,
                     'upload_date': video_date,
                     'ext': video_extension,
                 })
@@ -6236,7 +3535,7 @@ class JustinTVIE(InfoExtractor):
             paged = True
             api += '/channel/archives/%s.json'
         else:
-            api += '/clip/show/%s.json'
+            api += '/broadcast/by_archive/%s.json'
         api = api % (video_id,)
 
         self.report_extraction(video_id)
@@ -6257,10 +3556,6 @@ class JustinTVIE(InfoExtractor):
 
 class FunnyOrDieIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?funnyordie\.com/videos/(?P<id>[0-9a-f]+)/.*$'
-    IE_NAME = u'FunnyOrDie'
-
-    def report_extraction(self, video_id):
-        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)
@@ -6269,14 +3564,7 @@ class FunnyOrDieIE(InfoExtractor):
             return
 
         video_id = mobj.group('id')
-        self.report_extraction(video_id)
-        try:
-            urlh = compat_urllib_request.urlopen(url)
-            webpage_bytes = urlh.read()
-            webpage = webpage_bytes.decode('utf-8', 'ignore')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(url, video_id)
 
         m = re.search(r'<video[^>]*>\s*<source[^>]*>\s*<source src="(?P<url>[^"]+)"', webpage, re.DOTALL)
         if not m:
@@ -6303,11 +3591,178 @@ class FunnyOrDieIE(InfoExtractor):
         }
         return [info]
 
-class TweetReelIE(InfoExtractor):
-    _VALID_URL = r'^(?:https?://)?(?:www\.)?tweetreel\.com/[?](?P<id>[0-9a-z]+)$'
+class SteamIE(InfoExtractor):
+    _VALID_URL = r"""http://store.steampowered.com/
+                (?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
+                """
 
-    def report_extraction(self, video_id):
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+    @classmethod
+    def suitable(cls, url):
+        """Receives a URL and returns True if suitable for this IE."""
+        return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
+
+    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
+        webpage = self._download_webpage(videourl, gameID)
+        mweb = re.finditer(urlRE, webpage)
+        namesRE = r'<span class="title">(?P<videoName>.+?)</span>'
+        titles = re.finditer(namesRE, webpage)
+        thumbsRE = r'<img class="movie_thumb" src="(?P<thumbnail>.+?)">'
+        thumbs = re.finditer(thumbsRE, webpage)
+        videos = []
+        for vid,vtitle,thumb in zip(mweb,titles,thumbs):
+            video_id = vid.group('videoID')
+            title = vtitle.group('videoName')
+            video_url = vid.group('videoURL')
+            video_thumb = thumb.group('thumbnail')
+            if not video_url:
+                self._downloader.trouble(u'ERROR: Cannot find video url for %s' % video_id)
+            info = {
+                'id':video_id,
+                'url':video_url,
+                'ext': 'flv',
+                'title': unescapeHTML(title),
+                'thumbnail': video_thumb
+                  }
+            videos.append(info)
+        return videos
+
+class UstreamIE(InfoExtractor):
+    _VALID_URL = r'https?://www\.ustream\.tv/recorded/(?P<videoID>\d+)'
+    IE_NAME = u'ustream'
+
+    def _real_extract(self, url):
+        m = re.match(self._VALID_URL, url)
+        video_id = m.group('videoID')
+        video_url = u'http://tcdn.ustream.tv/video/%s' % video_id
+        webpage = self._download_webpage(url, video_id)
+        m = re.search(r'data-title="(?P<title>.+)"',webpage)
+        title = m.group('title')
+        m = re.search(r'<a class="state" data-content-type="channel" data-content-id="(?P<uploader>\d+)"',webpage)
+        uploader = m.group('uploader')
+        info = {
+                'id':video_id,
+                'url':video_url,
+                'ext': 'flv',
+                'title': title,
+                'uploader': uploader
+                  }
+        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(str(url)).read()
+        webpage_src = webpage_src.decode('utf-8')
+
+        mobj = re.search(_src_url, webpage_src)
+
+        if mobj is not None:
+            video_url = mobj.group()
+            if 'mp4' in video_url:
+                ext = 'mp4'
+            else:
+                ext = 'flv'
+        else:
+            video_url = None
+            ext = None
+
+        _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
+
+        m = re.match(self._VALID_URL, url)
+        video_id = m.group('id')
+        
+        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>[^/]+)$'
+
+    def _real_extract(self, url):
+        m = re.match(self._VALID_URL, url)
+        video_id = m.group('videoID')
+
+        webpage = self._download_webpage(url, video_id)
+        m = re.search(r'<script>window.gon = {.*?};gon\.show=(.+?);</script>', webpage)
+        if not m:
+            raise ExtractorError(u'Cannot find metadata')
+        json_data = m.group(1)
+
+        try:
+            data = json.loads(json_data)
+        except ValueError as e:
+            raise ExtractorError(u'Invalid JSON: ' + str(e))
+
+        video_url = data['akamai_url'] + '&cbr=256'
+        url_parts = compat_urllib_parse_urlparse(video_url)
+        video_ext = url_parts.path.rpartition('.')[2]
+        info = {
+                'id': video_id,
+                'url': video_url,
+                'ext': video_ext,
+                'title': data['title'],
+                'description': data.get('teaser_text'),
+                'location': data.get('country_of_origin'),
+                'uploader': data.get('host', {}).get('name'),
+                'uploader_id': data.get('host', {}).get('slug'),
+                'thumbnail': data.get('image', {}).get('large_url_2x'),
+                'duration': data.get('duration'),
+        }
+        return [info]
+
+
+class YouPornIE(InfoExtractor):
+    """Information extractor for youporn.com."""
+    _VALID_URL = r'^(?:https?://)?(?:\w+\.)?youporn\.com/watch/(?P<videoid>[0-9]+)/(?P<title>[^/]+)'
+
+    def _print_formats(self, formats):
+        """Print all available formats"""
+        print(u'Available formats:')
+        print(u'ext\t\tformat')
+        print(u'---------------------------------')
+        for format in formats:
+            print(u'%s\t\t%s'  % (format['ext'], format['format']))
+
+    def _specific(self, req_format, formats):
+        for x in formats:
+            if(x["format"]==req_format):
+                return x
+        return None
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
@@ -6315,49 +3770,436 @@ class TweetReelIE(InfoExtractor):
             self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
             return
 
-        video_id = mobj.group('id')
-        self.report_extraction(video_id)
-        try:
-            urlh = compat_urllib_request.urlopen(url)
-            webpage_bytes = urlh.read()
-            webpage = webpage_bytes.decode('utf-8', 'ignore')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download webpage: %s' % compat_str(err))
+        video_id = mobj.group('videoid')
+
+        req = compat_urllib_request.Request(url)
+        req.add_header('Cookie', 'age_verified=1')
+        webpage = self._download_webpage(req, video_id)
+
+        # Get the video title
+        result = re.search(r'<h1.*?>(?P<title>.*)</h1>', webpage)
+        if result is None:
+            raise ExtractorError(u'Unable to extract video title')
+        video_title = result.group('title').strip()
+
+        # Get the video date
+        result = re.search(r'Date:</label>(?P<date>.*) </li>', webpage)
+        if result is None:
+            self._downloader.report_warning(u'unable to extract video date')
+            upload_date = None
+        else:
+            upload_date = result.group('date').strip()
+
+        # Get the video uploader
+        result = re.search(r'Submitted:</label>(?P<uploader>.*)</li>', webpage)
+        if result is None:
+            self._downloader.report_warning(u'unable to extract uploader')
+            video_uploader = None
+        else:
+            video_uploader = result.group('uploader').strip()
+            video_uploader = clean_html( video_uploader )
+
+        # Get all of the formats available
+        DOWNLOAD_LIST_RE = r'(?s)<ul class="downloadList">(?P<download_list>.*?)</ul>'
+        result = re.search(DOWNLOAD_LIST_RE, webpage)
+        if result is None:
+            raise ExtractorError(u'Unable to extract download list')
+        download_list_html = result.group('download_list').strip()
+
+        # Get all of the links from the page
+        LINK_RE = r'(?s)<a href="(?P<url>[^"]+)">'
+        links = re.findall(LINK_RE, download_list_html)
+        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))
+
+        formats = []
+        for link in links:
+
+            # A link looks like this:
+            # http://cdn1.download.youporn.phncdn.com/201210/31/8004515/480p_370k_8004515/YouPorn%20-%20Nubile%20Films%20The%20Pillow%20Fight.mp4?nvb=20121113051249&nva=20121114051249&ir=1200&sr=1200&hash=014b882080310e95fb6a0
+            # A path looks like this:
+            # /201210/31/8004515/480p_370k_8004515/YouPorn%20-%20Nubile%20Films%20The%20Pillow%20Fight.mp4
+            video_url = unescapeHTML( link )
+            path = compat_urllib_parse_urlparse( video_url ).path
+            extension = os.path.splitext( path )[1][1:]
+            format = path.split('/')[4].split('_')[:2]
+            size = format[0]
+            bitrate = format[1]
+            format = "-".join( format )
+            title = u'%s-%s-%s' % (video_title, size, bitrate)
+
+            formats.append({
+                'id': video_id,
+                'url': video_url,
+                'uploader': video_uploader,
+                'upload_date': upload_date,
+                'title': title,
+                'ext': extension,
+                'format': format,
+                'thumbnail': None,
+                'description': None,
+                'player_url': None
+            })
+
+        if self._downloader.params.get('listformats', None):
+            self._print_formats(formats)
             return
 
-        m = re.search(r'<div id="left" status_id="([0-9]+)">', webpage)
-        if not m:
-            self._downloader.trouble(u'ERROR: Cannot find status ID')
-        status_id = m.group(1)
+        req_format = self._downloader.params.get('format', None)
+        self._downloader.to_screen(u'[youporn] Format: %s' % req_format)
 
-        m = re.search(r'<div class="tweet_text">(.*?)</div>', webpage, flags=re.DOTALL)
-        if not m:
-            self._downloader.trouble(u'WARNING: Cannot find description')
-        desc = unescapeHTML(re.sub('<a.*?</a>', '', m.group(1))).strip()
+        if req_format is None or req_format == 'best':
+            return [formats[0]]
+        elif req_format == 'worst':
+            return [formats[-1]]
+        elif req_format in ('-1', 'all'):
+            return formats
+        else:
+            format = self._specific( req_format, formats )
+            if result is None:
+                self._downloader.trouble(u'ERROR: requested format not available')
+                return
+            return [format]
+
+
+
+class PornotubeIE(InfoExtractor):
+    """Information extractor for pornotube.com."""
+    _VALID_URL = r'^(?:https?://)?(?:\w+\.)?pornotube\.com(/c/(?P<channel>[0-9]+))?(/m/(?P<videoid>[0-9]+))(/(?P<title>.+))$'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group('videoid')
+        video_title = mobj.group('title')
+
+        # Get webpage content
+        webpage = self._download_webpage(url, video_id)
+
+        # Get the video URL
+        VIDEO_URL_RE = r'url: "(?P<url>http://video[0-9].pornotube.com/.+\.flv)",'
+        result = re.search(VIDEO_URL_RE, webpage)
+        if result is None:
+            self._downloader.trouble(u'ERROR: unable to extract video url')
+            return
+        video_url = compat_urllib_parse.unquote(result.group('url'))
+
+        #Get the uploaded date
+        VIDEO_UPLOADED_RE = r'<div class="video_added_by">Added (?P<date>[0-9\/]+) by'
+        result = re.search(VIDEO_UPLOADED_RE, webpage)
+        if result is None:
+            self._downloader.trouble(u'ERROR: unable to extract video title')
+            return
+        upload_date = result.group('date')
+
+        info = {'id': video_id,
+                'url': video_url,
+                'uploader': None,
+                'upload_date': upload_date,
+                'title': video_title,
+                'ext': 'flv',
+                'format': 'flv'}
+
+        return [info]
+
+class YouJizzIE(InfoExtractor):
+    """Information extractor for youjizz.com."""
+    _VALID_URL = r'^(?:https?://)?(?:\w+\.)?youjizz\.com/videos/(?P<videoid>[^.]+).html$'
 
-        m = re.search(r'<div class="tweet_info">.*?from <a target="_blank" href="https?://twitter.com/(?P<uploader_id>.+?)">(?P<uploader>.+?)</a>', webpage, flags=re.DOTALL)
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+            return
+
+        video_id = mobj.group('videoid')
+
+        # Get webpage content
+        webpage = self._download_webpage(url, video_id)
+
+        # Get the video title
+        result = re.search(r'<title>(?P<title>.*)</title>', webpage)
+        if result is None:
+            raise ExtractorError(u'ERROR: unable to extract video title')
+        video_title = result.group('title').strip()
+
+        # Get the embed page
+        result = re.search(r'https?://www.youjizz.com/videos/embed/(?P<videoid>[0-9]+)', webpage)
+        if result is None:
+            raise ExtractorError(u'ERROR: unable to extract embed page')
+
+        embed_page_url = result.group(0).strip()
+        video_id = result.group('videoid')
+
+        webpage = self._download_webpage(embed_page_url, video_id)
+
+        # Get the video URL
+        result = re.search(r'so.addVariable\("file",encodeURIComponent\("(?P<source>[^"]+)"\)\);', webpage)
+        if result is None:
+            raise ExtractorError(u'ERROR: unable to extract video url')
+        video_url = result.group('source')
+
+        info = {'id': video_id,
+                'url': video_url,
+                'title': video_title,
+                'ext': 'flv',
+                'format': 'flv',
+                'player_url': embed_page_url}
+
+        return [info]
+
+class EightTracksIE(InfoExtractor):
+    IE_NAME = '8tracks'
+    _VALID_URL = r'https?://8tracks.com/(?P<user>[^/]+)/(?P<id>[^/#]+)(?:#.*)?$'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        playlist_id = mobj.group('id')
+
+        webpage = self._download_webpage(url, playlist_id)
+
+        m = re.search(r"PAGE.mix = (.*?);\n", webpage, flags=re.DOTALL)
         if not m:
-            self._downloader.trouble(u'ERROR: Cannot find uploader')
+            raise ExtractorError(u'Cannot find trax information')
+        json_like = m.group(1)
+        data = json.loads(json_like)
+
+        session = str(random.randint(0, 1000000000))
+        mix_id = data['id']
+        track_count = data['tracks_count']
+        first_url = 'http://8tracks.com/sets/%s/play?player=sm&mix_id=%s&format=jsonh' % (session, mix_id)
+        next_url = first_url
+        res = []
+        for i in itertools.count():
+            api_json = self._download_webpage(next_url, playlist_id,
+                note=u'Downloading song information %s/%s' % (str(i+1), track_count),
+                errnote=u'Failed to download song information')
+            api_data = json.loads(api_json)
+            track_data = api_data[u'set']['track']
+            info = {
+                'id': track_data['id'],
+                'url': track_data['track_file_stream_url'],
+                'title': track_data['performer'] + u' - ' + track_data['name'],
+                'raw_title': track_data['name'],
+                'uploader_id': data['user']['login'],
+                'ext': 'm4a',
+            }
+            res.append(info)
+            if api_data['set']['at_last_track']:
+                break
+            next_url = 'http://8tracks.com/sets/%s/next?player=sm&mix_id=%s&format=jsonh&track_id=%s' % (session, mix_id, track_data['id'])
+        return res
+
+class KeekIE(InfoExtractor):
+    _VALID_URL = r'http://(?:www\.)?keek\.com/(?:!|\w+/keeks/)(?P<videoID>\w+)'
+    IE_NAME = u'keek'
+
+    def _real_extract(self, url):
+        m = re.match(self._VALID_URL, url)
+        video_id = m.group('videoID')
+        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)
+        title = unescapeHTML(m.group('title'))
+        m = re.search(r'<div class="bio-names-and-report">[\s\n]+<h4>(?P<uploader>\w+)</h4>', webpage)
         uploader = unescapeHTML(m.group('uploader'))
-        uploader_id = unescapeHTML(m.group('uploader_id'))
+        info = {
+                'id':video_id,
+                'url':video_url,
+                'ext': 'mp4',
+                'title': title,
+                'thumbnail': thumbnail,
+                'uploader': uploader
+        }
+        return [info]
 
-        m = re.search(r'<span unixtime="([0-9]+)"', webpage)
-        if not m:
-            self._downloader.trouble(u'ERROR: Cannot find upload date')
-        upload_date = datetime.datetime.fromtimestamp(int(m.group(1))).strftime('%Y%m%d')
+class TEDIE(InfoExtractor):
+    _VALID_URL=r'''http://www.ted.com/
+                   (
+                        ((?P<type_playlist>playlists)/(?P<playlist_id>\d+)) # We have a playlist
+                        |
+                        ((?P<type_talk>talks)) # We have a simple talk
+                   )
+                   /(?P<name>\w+) # Here goes the name and then ".html"
+                   '''
+
+    @classmethod
+    def suitable(cls, url):
+        """Receives a URL and returns True if suitable for this IE."""
+        return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
+
+    def _real_extract(self, url):
+        m=re.match(self._VALID_URL, url, re.VERBOSE)
+        if m.group('type_talk'):
+            return [self._talk_info(url)]
+        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)
+
+    def _talk_video_link(self,mediaSlug):
+        '''Returns the video link for that mediaSlug'''
+        return 'http://download.ted.com/talks/%s.mp4' % mediaSlug
+
+    def _playlist_videos_info(self,url,name,playlist_id=0):
+        '''Returns the videos of the playlist'''
+        video_RE=r'''
+                     <li\ id="talk_(\d+)"([.\s]*?)data-id="(?P<video_id>\d+)"
+                     ([.\s]*?)data-playlist_item_id="(\d+)"
+                     ([.\s]*?)data-mediaslug="(?P<mediaSlug>.+?)"
+                     '''
+        video_name_RE=r'<p\ class="talk-title"><a href="(?P<talk_url>/talks/(.+).html)">(?P<fullname>.+?)</a></p>'
+        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=[]
+        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
+
+    def _talk_info(self, url, video_id=0):
+        """Return the video for the talk in the url"""
+        m=re.match(self._VALID_URL, url,re.VERBOSE)
+        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.search(title_RE, webpage).group('title')
+        info_RE=r'''<script\ type="text/javascript">var\ talkDetails\ =(.*?)
+                        "id":(?P<videoID>[\d]+).*?
+                        "mediaSlug":"(?P<mediaSlug>[\w\d]+?)"'''
+        thumb_RE=r'</span>[\s.]*</div>[\s.]*<img src="(?P<thumbnail>.*?)"'
+        thumb_match=re.search(thumb_RE,webpage)
+        info_match=re.search(info_RE,webpage,re.VERBOSE)
+        video_id=info_match.group('videoID')
+        mediaSlug=info_match.group('mediaSlug')
+        video_url=self._talk_video_link(mediaSlug)
+        info = {
+                'id': video_id,
+                'url': video_url,
+                'ext': 'mp4',
+                'title': title,
+                'thumbnail': thumb_match.group('thumbnail')
+                }
+        return info
 
-        title = desc
-        video_url = 'http://files.tweetreel.com/video/' + status_id + '.mov'
+class MySpassIE(InfoExtractor):
+    _VALID_URL = r'http://www.myspass.de/.*'
 
+    def _real_extract(self, url):
+        META_DATA_URL_TEMPLATE = 'http://www.myspass.de/myspass/includes/apps/video/getvideometadataxml.php?id=%s'
+
+        # video id is the last path element of the URL
+        # usually there is a trailing slash, so also try the second but last
+        url_path = compat_urllib_parse_urlparse(url).path
+        url_parent_path, video_id = os.path.split(url_path)
+        if not video_id:
+            _, video_id = os.path.split(url_parent_path)
+
+        # get metadata
+        metadata_url = META_DATA_URL_TEMPLATE % video_id
+        metadata_text = self._download_webpage(metadata_url, video_id)
+        metadata = xml.etree.ElementTree.fromstring(metadata_text.encode('utf-8'))
+
+        # extract values from metadata
+        url_flv_el = metadata.find('url_flv')
+        if url_flv_el is None:
+            self._downloader.trouble(u'ERROR: unable to extract download url')
+            return
+        video_url = url_flv_el.text
+        extension = os.path.splitext(video_url)[1][1:]
+        title_el = metadata.find('title')
+        if title_el is None:
+            self._downloader.trouble(u'ERROR: unable to extract title')
+            return
+        title = title_el.text
+        format_id_el = metadata.find('format_id')
+        if format_id_el is None:
+            format = ext
+        else:
+            format = format_id_el.text
+        description_el = metadata.find('description')
+        if description_el is not None:
+            description = description_el.text
+        else:
+            description = None
+        imagePreview_el = metadata.find('imagePreview')
+        if imagePreview_el is not None:
+            thumbnail = imagePreview_el.text
+        else:
+            thumbnail = None
         info = {
             'id': video_id,
             'url': video_url,
-            'ext': 'mov',
             'title': title,
-            'description': desc,
-            'uploader': uploader,
-            'uploader_id': uploader_id,
-            'internal_id': status_id,
-            'upload_date': upload_date
+            'ext': extension,
+            'format': format,
+            'thumbnail': thumbnail,
+            'description': description
         }
         return [info]
+
+def gen_extractors():
+    """ Return a list of an instance of every supported extractor.
+    The order does matter; the first extractor matched is the one handling the URL.
+    """
+    return [
+        YoutubePlaylistIE(),
+        YoutubeChannelIE(),
+        YoutubeUserIE(),
+        YoutubeSearchIE(),
+        YoutubeIE(),
+        MetacafeIE(),
+        DailymotionIE(),
+        GoogleSearchIE(),
+        PhotobucketIE(),
+        YahooIE(),
+        YahooSearchIE(),
+        DepositFilesIE(),
+        FacebookIE(),
+        BlipTVUserIE(),
+        BlipTVIE(),
+        VimeoIE(),
+        MyVideoIE(),
+        ComedyCentralIE(),
+        EscapistIE(),
+        CollegeHumorIE(),
+        XVideosIE(),
+        SoundcloudIE(),
+        InfoQIE(),
+        MixcloudIE(),
+        StanfordOpenClassroomIE(),
+        MTVIE(),
+        YoukuIE(),
+        XNXXIE(),
+        YouJizzIE(),
+        PornotubeIE(),
+        YouPornIE(),
+        GooglePlusIE(),
+        ArteTvIE(),
+        NBAIE(),
+        WorldStarHipHopIE(),
+        JustinTVIE(),
+        FunnyOrDieIE(),
+        SteamIE(),
+        UstreamIE(),
+        RBMARadioIE(),
+        EightTracksIE(),
+        KeekIE(),
+        TEDIE(),
+        MySpassIE(),
+        GenericIE()
+    ]
+
+