Removed a spurious increment_downloads

1 files changed, 2604 insertions, 0 deletions

diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index e3cf7e115..3715bef50 100755
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -1093,6 +1093,2610 @@ class ArteTvIE(InfoExtractor):
         self._downloader.to_screen(u'[arte.tv] %s: Extracting information' % video_id)
 
     def fetch_webpage(self, url):
+        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#!/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.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: