X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=youtube_dl%2FInfoExtractors.py;h=3cd50d023b19b7a54f0b2a944e1d11ed7e88ef8e;hb=1037d53988387db920748861e6af644547be0f20;hp=3d8145e162ca696389dd20935dfefa4b5b18d131;hpb=df2dedeefba281e37bbdae5534a3360320259b22;p=youtube-dl.git

diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index 3d8145e16..cd91c13f5 100755
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -16,6 +16,9 @@ import xml.etree.ElementTree
 import random
 import math
 import operator
+import hashlib
+import binascii
+import urllib
 
 from .utils import *
 
@@ -114,8 +117,9 @@ class InfoExtractor(object):
     def _request_webpage(self, url_or_request, video_id, note=None, errnote=None):
         """ Returns the response handle """
         if note is None:
-            note = u'Downloading video webpage'
-        self._downloader.to_screen(u'[%s] %s: %s' % (self.IE_NAME, video_id, note))
+            self.report_download_webpage(video_id)
+        elif note is not False:
+            self.to_screen(u'%s: %s' % (video_id, note))
         try:
             return compat_urllib_request.urlopen(url_or_request)
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
@@ -123,8 +127,8 @@ class InfoExtractor(object):
                 errnote = u'Unable to download webpage'
             raise ExtractorError(u'%s: %s' % (errnote, compat_str(err)), sys.exc_info()[2])
 
-    def _download_webpage(self, url_or_request, video_id, note=None, errnote=None):
-        """ Returns the data of the page as a string """
+    def _download_webpage_handle(self, url_or_request, video_id, note=None, errnote=None):
+        """ Returns a tuple (page content as string, URL handle) """
         urlh = self._request_webpage(url_or_request, video_id, note, errnote)
         content_type = urlh.headers.get('Content-Type', '')
         m = re.match(r'[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+\s*;\s*charset=(.+)', content_type)
@@ -133,7 +137,139 @@ class InfoExtractor(object):
         else:
             encoding = 'utf-8'
         webpage_bytes = urlh.read()
-        return webpage_bytes.decode(encoding, 'replace')
+        if self._downloader.params.get('dump_intermediate_pages', False):
+            try:
+                url = url_or_request.get_full_url()
+            except AttributeError:
+                url = url_or_request
+            self.to_screen(u'Dumping request to ' + url)
+            dump = base64.b64encode(webpage_bytes).decode('ascii')
+            self._downloader.to_screen(dump)
+        content = webpage_bytes.decode(encoding, 'replace')
+        return (content, urlh)
+
+    def _download_webpage(self, url_or_request, video_id, note=None, errnote=None):
+        """ Returns the data of the page as a string """
+        return self._download_webpage_handle(url_or_request, video_id, note, errnote)[0]
+
+    def to_screen(self, msg):
+        """Print msg to screen, prefixing it with '[ie_name]'"""
+        self._downloader.to_screen(u'[%s] %s' % (self.IE_NAME, msg))
+
+    def report_extraction(self, id_or_name):
+        """Report information extraction."""
+        self.to_screen(u'%s: Extracting information' % id_or_name)
+
+    def report_download_webpage(self, video_id):
+        """Report webpage download."""
+        self.to_screen(u'%s: Downloading webpage' % video_id)
+
+    def report_age_confirmation(self):
+        """Report attempt to confirm age."""
+        self.to_screen(u'Confirming age')
+
+    #Methods for following #608
+    #They set the correct value of the '_type' key
+    def video_result(self, video_info):
+        """Returns a video"""
+        video_info['_type'] = 'video'
+        return video_info
+    def url_result(self, url, ie=None):
+        """Returns a url that points to a page that should be processed"""
+        #TODO: ie should be the class used for getting the info
+        video_info = {'_type': 'url',
+                      'url': url,
+                      'ie_key': ie}
+        return video_info
+    def playlist_result(self, entries, playlist_id=None, playlist_title=None):
+        """Returns a playlist"""
+        video_info = {'_type': 'playlist',
+                      'entries': entries}
+        if playlist_id:
+            video_info['id'] = playlist_id
+        if playlist_title:
+            video_info['title'] = playlist_title
+        return video_info
+
+    def _search_regex(self, pattern, string, name, default=None, fatal=True, flags=0):
+        """
+        Perform a regex search on the given string, using a single or a list of
+        patterns returning the first matching group.
+        In case of failure return a default value or raise a WARNING or a
+        ExtractorError, depending on fatal, specifying the field name.
+        """
+        if isinstance(pattern, (str, compat_str, compiled_regex_type)):
+            mobj = re.search(pattern, string, flags)
+        else:
+            for p in pattern:
+                mobj = re.search(p, string, flags)
+                if mobj: break
+
+        if sys.stderr.isatty() and os.name != 'nt':
+            _name = u'\033[0;34m%s\033[0m' % name
+        else:
+            _name = name
+
+        if mobj:
+            # return the first matching group
+            return next(g for g in mobj.groups() if g is not None)
+        elif default is not None:
+            return default
+        elif fatal:
+            raise ExtractorError(u'Unable to extract %s' % _name)
+        else:
+            self._downloader.report_warning(u'unable to extract %s; '
+                u'please report this issue on GitHub.' % _name)
+            return None
+
+    def _html_search_regex(self, pattern, string, name, default=None, fatal=True, flags=0):
+        """
+        Like _search_regex, but strips HTML tags and unescapes entities.
+        """
+        res = self._search_regex(pattern, string, name, default, fatal, flags)
+        if res:
+            return clean_html(res).strip()
+        else:
+            return res
+
+class SearchInfoExtractor(InfoExtractor):
+    """
+    Base class for paged search queries extractors.
+    They accept urls in the format _SEARCH_KEY(|all|[0-9]):{query}
+    Instances should define _SEARCH_KEY and _MAX_RESULTS.
+    """
+
+    @classmethod
+    def _make_valid_url(cls):
+        return r'%s(?P<prefix>|[1-9][0-9]*|all):(?P<query>[\s\S]+)' % cls._SEARCH_KEY
+
+    @classmethod
+    def suitable(cls, url):
+        return re.match(cls._make_valid_url(), url) is not None
+
+    def _real_extract(self, query):
+        mobj = re.match(self._make_valid_url(), query)
+        if mobj is None:
+            raise ExtractorError(u'Invalid search query "%s"' % query)
+
+        prefix = mobj.group('prefix')
+        query = mobj.group('query')
+        if prefix == '':
+            return self._get_n_results(query, 1)
+        elif prefix == 'all':
+            return self._get_n_results(query, self._MAX_RESULTS)
+        else:
+            n = int(prefix)
+            if n <= 0:
+                raise ExtractorError(u'invalid download number %s for query "%s"' % (n, query))
+            elif n > self._MAX_RESULTS:
+                self._downloader.report_warning(u'%s returns max %i results (you requested %i)' % (self._SEARCH_KEY, self._MAX_RESULTS, n))
+                n = self._MAX_RESULTS
+            return self._get_n_results(query, n)
+
+    def _get_n_results(self, query, n):
+        """Get a specified number of results for a query"""
+        raise NotImplementedError("This method must be implemented by sublclasses")
 
 
 class YoutubeIE(InfoExtractor):
@@ -158,7 +294,7 @@ class YoutubeIE(InfoExtractor):
                      ([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'
+    _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
     _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
@@ -204,48 +340,44 @@ class YoutubeIE(InfoExtractor):
 
     def report_lang(self):
         """Report attempt to set language."""
-        self._downloader.to_screen(u'[youtube] Setting language')
+        self.to_screen(u'Setting language')
 
     def report_login(self):
         """Report attempt to log in."""
-        self._downloader.to_screen(u'[youtube] Logging in')
-
-    def report_age_confirmation(self):
-        """Report attempt to confirm age."""
-        self._downloader.to_screen(u'[youtube] Confirming age')
+        self.to_screen(u'Logging in')
 
     def report_video_webpage_download(self, video_id):
         """Report attempt to download video webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video webpage' % video_id)
+        self.to_screen(u'%s: Downloading video webpage' % video_id)
 
     def report_video_info_webpage_download(self, video_id):
         """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video info webpage' % video_id)
+        self.to_screen(u'%s: Downloading video info webpage' % video_id)
 
     def report_video_subtitles_download(self, video_id):
         """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Checking available subtitles' % video_id)
+        self.to_screen(u'%s: Checking available subtitles' % video_id)
 
     def report_video_subtitles_request(self, video_id, sub_lang, format):
         """Report attempt to download video info webpage."""
-        self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
+        self.to_screen(u'%s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format))
 
     def report_video_subtitles_available(self, video_id, sub_lang_list):
         """Report available subtitles."""
         sub_lang = ",".join(list(sub_lang_list.keys()))
-        self._downloader.to_screen(u'[youtube] %s: Available subtitles for video: %s' % (video_id, sub_lang))
+        self.to_screen(u'%s: Available subtitles for video: %s' % (video_id, sub_lang))
 
     def report_information_extraction(self, video_id):
         """Report attempt to extract video information."""
-        self._downloader.to_screen(u'[youtube] %s: Extracting video information' % video_id)
+        self.to_screen(u'%s: Extracting video information' % video_id)
 
     def report_unavailable_format(self, video_id, format):
         """Report extracted video URL."""
-        self._downloader.to_screen(u'[youtube] %s: Format %s not available' % (video_id, format))
+        self.to_screen(u'%s: Format %s not available' % (video_id, format))
 
     def report_rtmp_download(self):
         """Indicate the download will use the RTMP protocol."""
-        self._downloader.to_screen(u'[youtube] RTMP download detected')
+        self.to_screen(u'RTMP download detected')
 
     def _get_available_subtitles(self, video_id):
         self.report_video_subtitles_download(video_id)
@@ -285,6 +417,34 @@ class YoutubeIE(InfoExtractor):
             return (u'Did not fetch video subtitles', None, None)
         return (None, sub_lang, sub)
 
+    def _request_automatic_caption(self, video_id, webpage):
+        """We need the webpage for getting the captions url, pass it as an
+           argument to speed up the process."""
+        sub_lang = self._downloader.params.get('subtitleslang') or 'en'
+        sub_format = self._downloader.params.get('subtitlesformat')
+        self.to_screen(u'%s: Looking for automatic captions' % video_id)
+        mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
+        err_msg = u'Couldn\'t find automatic captions for "%s"' % sub_lang
+        if mobj is None:
+            return [(err_msg, None, None)]
+        player_config = json.loads(mobj.group(1))
+        try:
+            args = player_config[u'args']
+            caption_url = args[u'ttsurl']
+            timestamp = args[u'timestamp']
+            params = compat_urllib_parse.urlencode({
+                'lang': 'en',
+                'tlang': sub_lang,
+                'fmt': sub_format,
+                'ts': timestamp,
+                'kind': 'asr',
+            })
+            subtitles_url = caption_url + '&' + params
+            sub = self._download_webpage(subtitles_url, video_id, u'Downloading automatic captions')
+            return [(None, sub_lang, sub)]
+        except KeyError:
+            return [(err_msg, None, None)]
+
     def _extract_subtitle(self, video_id):
         """
         Return a list with a tuple:
@@ -378,7 +538,7 @@ class YoutubeIE(InfoExtractor):
 
         # Log in
         login_form_strs = {
-                u'continue': u'http://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
+                u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
                 u'Email': username,
                 u'GALX': galx,
                 u'Passwd': password,
@@ -423,14 +583,12 @@ class YoutubeIE(InfoExtractor):
             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.report_error(u'unable to confirm age: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
 
     def _extract_id(self, url):
         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group(2)
         return video_id
 
@@ -438,18 +596,17 @@ class YoutubeIE(InfoExtractor):
         # 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('/')
+            url = 'https://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
+        url = 'https://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.report_error(u'unable to download video webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
 
         video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
 
@@ -463,37 +620,30 @@ class YoutubeIE(InfoExtractor):
         # Get video info
         self.report_video_info_webpage_download(video_id)
         for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
-            video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
+            video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
                     % (video_id, el_type))
-            request = compat_urllib_request.Request(video_info_url)
-            try:
-                video_info_webpage_bytes = compat_urllib_request.urlopen(request).read()
-                video_info_webpage = video_info_webpage_bytes.decode('utf-8', 'ignore')
-                video_info = compat_parse_qs(video_info_webpage)
-                if 'token' in video_info:
-                    break
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download video info webpage: %s' % compat_str(err))
-                return
+            video_info_webpage = self._download_webpage(video_info_url, video_id,
+                                    note=False,
+                                    errnote='unable to download video info webpage')
+            video_info = compat_parse_qs(video_info_webpage)
+            if 'token' in video_info:
+                break
         if 'token' not in video_info:
             if 'reason' in video_info:
-                self._downloader.report_error(u'YouTube said: %s' % video_info['reason'][0])
+                raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0])
             else:
-                self._downloader.report_error(u'"token" parameter not in video info for unknown reason')
-            return
+                raise ExtractorError(u'"token" parameter not in video info for unknown reason')
 
         # Check for "rental" videos
         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
-            self._downloader.report_error(u'"rental" videos not supported')
-            return
+            raise ExtractorError(u'"rental" videos not supported')
 
         # Start extracting information
         self.report_information_extraction(video_id)
 
         # uploader
         if 'author' not in video_info:
-            self._downloader.report_error(u'unable to extract uploader name')
-            return
+            raise ExtractorError(u'Unable to extract uploader name')
         video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
 
         # uploader_id
@@ -506,8 +656,7 @@ class YoutubeIE(InfoExtractor):
 
         # title
         if 'title' not in video_info:
-            self._downloader.report_error(u'unable to extract video title')
-            return
+            raise ExtractorError(u'Unable to extract video title')
         video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
 
         # thumbnail image
@@ -522,19 +671,18 @@ class YoutubeIE(InfoExtractor):
         mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
         if mobj is not None:
             upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
-            format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y']
-            for expression in format_expressions:
-                try:
-                    upload_date = datetime.datetime.strptime(upload_date, expression).strftime('%Y%m%d')
-                except:
-                    pass
+            upload_date = unified_strdate(upload_date)
 
         # description
         video_description = get_element_by_id("eow-description", video_webpage)
         if video_description:
             video_description = clean_html(video_description)
         else:
-            video_description = ''
+            fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
+            if fd_mobj:
+                video_description = unescapeHTML(fd_mobj.group(1))
+            else:
+                video_description = u''
 
         # subtitles
         video_subtitles = None
@@ -544,14 +692,21 @@ class YoutubeIE(InfoExtractor):
             if video_subtitles:
                 (sub_error, sub_lang, sub) = video_subtitles[0]
                 if sub_error:
-                    self._downloader.report_error(sub_error)
+                    # We try with the automatic captions
+                    video_subtitles = self._request_automatic_caption(video_id, video_webpage)
+                    (sub_error_auto, sub_lang, sub) = video_subtitles[0]
+                    if sub is not None:
+                        pass
+                    else:
+                        # We report the original error
+                        self._downloader.report_warning(sub_error)
 
         if self._downloader.params.get('allsubtitles', False):
             video_subtitles = self._extract_all_subtitles(video_id)
             for video_subtitle in video_subtitles:
                 (sub_error, sub_lang, sub) = video_subtitle
                 if sub_error:
-                    self._downloader.report_error(sub_error)
+                    self._downloader.report_warning(sub_error)
 
         if self._downloader.params.get('listsubtitles', False):
             sub_lang_list = self._list_available_subtitles(video_id)
@@ -573,10 +728,16 @@ class YoutubeIE(InfoExtractor):
             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)
+            url_map = {}
+            for url_data_str in video_info['url_encoded_fmt_stream_map'][0].split(','):
+                url_data = compat_parse_qs(url_data_str)
+                if 'itag' in url_data and 'url' in url_data:
+                    url = url_data['url'][0]
+                    if 'sig' in url_data:
+                        url += '&signature=' + url_data['sig'][0]
+                    if 'ratebypass' not in url:
+                        url += '&ratebypass=yes'
+                    url_map[url_data['itag'][0]] = url
 
             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
@@ -586,8 +747,7 @@ class YoutubeIE(InfoExtractor):
                 format_list = available_formats
             existing_formats = [x for x in format_list if x in url_map]
             if len(existing_formats) == 0:
-                self._downloader.report_error(u'no known formats available for video')
-                return
+                raise ExtractorError(u'no known formats available for video')
             if self._downloader.params.get('listformats', None):
                 self._print_formats(existing_formats)
                 return
@@ -607,11 +767,9 @@ class YoutubeIE(InfoExtractor):
                         video_url_list = [(rf, url_map[rf])]
                         break
                 if video_url_list is None:
-                    self._downloader.report_error(u'requested format not available')
-                    return
+                    raise ExtractorError(u'requested format not available')
         else:
-            self._downloader.report_error(u'no conn or url_encoded_fmt_stream_map information found in video info')
-            return
+            raise ExtractorError(u'no conn or url_encoded_fmt_stream_map information found in video info')
 
         results = []
         for format_param, video_real_url in video_url_list:
@@ -647,24 +805,9 @@ class MetacafeIE(InfoExtractor):
     _FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
     IE_NAME = u'metacafe'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_disclaimer(self):
         """Report disclaimer retrieval."""
-        self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
-
-    def report_age_confirmation(self):
-        """Report attempt to confirm age."""
-        self._downloader.to_screen(u'[metacafe] Confirming age')
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[metacafe] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[metacafe] %s: Extracting information' % video_id)
+        self.to_screen(u'Retrieving disclaimer')
 
     def _real_initialize(self):
         # Retrieve disclaimer
@@ -673,8 +816,7 @@ class MetacafeIE(InfoExtractor):
             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.report_error(u'unable to retrieve disclaimer: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve disclaimer: %s' % compat_str(err))
 
         # Confirm age
         disclaimer_form = {
@@ -686,32 +828,23 @@ class MetacafeIE(InfoExtractor):
             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.report_error(u'unable to confirm age: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
 
     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.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         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
+            return [self.url_result('http://www.youtube.com/watch?v=%s' % mobj2.group(1), 'Youtube')]
 
         # Retrieve video webpage to extract further information
-        request = compat_urllib_request.Request('http://www.metacafe.com/watch/%s/' % video_id)
-        try:
-            self.report_download_webpage(video_id)
-            webpage = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable retrieve video webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage('http://www.metacafe.com/watch/%s/' % video_id, video_id)
 
         # Extract URL, uploader and title from webpage
         self.report_extraction(video_id)
@@ -730,30 +863,25 @@ class MetacafeIE(InfoExtractor):
         else:
             mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
             if mobj is None:
-                self._downloader.report_error(u'unable to extract media URL')
-                return
+                raise ExtractorError(u'Unable to extract media URL')
             vardict = compat_parse_qs(mobj.group(1))
             if 'mediaData' not in vardict:
-                self._downloader.report_error(u'unable to extract media URL')
-                return
-            mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
+                raise ExtractorError(u'Unable to extract media URL')
+            mobj = re.search(r'"mediaURL":"(?P<mediaURL>http.*?)",(.*?)"key":"(?P<key>.*?)"', vardict['mediaData'][0])
             if mobj is None:
-                self._downloader.report_error(u'unable to extract media URL')
-                return
-            mediaURL = mobj.group(1).replace('\\/', '/')
+                raise ExtractorError(u'Unable to extract media URL')
+            mediaURL = mobj.group('mediaURL').replace('\\/', '/')
             video_extension = mediaURL[-3:]
-            video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
+            video_url = '%s?__gda__=%s' % (mediaURL, mobj.group('key'))
 
         mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         video_title = mobj.group(1).decode('utf-8')
 
         mobj = re.search(r'submitter=(.*?);', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract uploader nickname')
-            return
+            raise ExtractorError(u'Unable to extract uploader nickname')
         video_uploader = mobj.group(1)
 
         return [{
@@ -765,27 +893,17 @@ class MetacafeIE(InfoExtractor):
             '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'
-    _WORKING = False
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
 
     def _real_extract(self, url):
         # Extract id and simplified title from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(1).split('_')[0].split('?')[0]
 
@@ -800,23 +918,20 @@ class DailymotionIE(InfoExtractor):
         self.report_extraction(video_id)
         mobj = re.search(r'\s*var flashvars = (.*)', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract media URL')
-            return
+            raise ExtractorError(u'Unable to extract media URL')
         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)
+                self.to_screen(u'Using %s' % key)
                 break
         else:
-            self._downloader.report_error(u'unable to extract video URL')
-            return
+            raise ExtractorError(u'Unable to extract video URL')
 
         mobj = re.search(r'"' + max_quality + r'":"(.+?)"', flashvars)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video URL')
-            return
+            raise ExtractorError(u'Unable to extract video URL')
 
         video_url = compat_urllib_parse.unquote(mobj.group(1)).replace('\\/', '/')
 
@@ -824,21 +939,14 @@ class DailymotionIE(InfoExtractor):
 
         mobj = re.search(r'<meta property="og:title" content="(?P<title>[^"]*)" />', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         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.report_warning(u'unable to extract uploader nickname')
-            else:
-                video_uploader = mobj_official.group(1)
-        else:
-            video_uploader = mobj.group(1)
+        video_uploader = self._search_regex([r'(?im)<span class="owner[^\"]+?">[^<]+?<a [^>]+?>([^<]+?)</a>',
+                                             # Looking for official user
+                                             r'<(?:span|a) .*?rel="author".*?>([^<]+?)</'],
+                                            webpage, 'video uploader')
 
         video_upload_date = None
         mobj = re.search(r'<div class="[^"]*uploaded_cont[^"]*" title="[^"]*">([0-9]{2})-([0-9]{2})-([0-9]{4})</div>', webpage)
@@ -858,56 +966,49 @@ class DailymotionIE(InfoExtractor):
 class PhotobucketIE(InfoExtractor):
     """Information extractor for photobucket.com."""
 
-    _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
+    # TODO: the original _VALID_URL was:
+    # r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
+    # Check if it's necessary to keep the old extracion process
+    _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*(([\?\&]current=)|_)(?P<id>.*)\.(?P<ext>(flv)|(mp4))'
     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.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
-        video_id = mobj.group(1)
+        video_id = mobj.group('id')
 
-        video_extension = 'flv'
+        video_extension = mobj.group('ext')
 
         # 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.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(url, video_id)
 
         # 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.report_error(u'unable to extract media URL')
-            return
-        mediaURL = compat_urllib_parse.unquote(mobj.group(1))
+        # We try first by looking the javascript code:
+        mobj = re.search(r'Pb\.Data\.Shared\.put\(Pb\.Data\.Shared\.MEDIA, (?P<json>.*?)\);', webpage)
+        if mobj is not None:
+            info = json.loads(mobj.group('json'))
+            return [{
+                'id':       video_id,
+                'url':      info[u'downloadUrl'],
+                'uploader': info[u'username'],
+                'upload_date':  datetime.date.fromtimestamp(info[u'creationDate']).strftime('%Y%m%d'),
+                'title':    info[u'title'],
+                'ext':      video_extension,
+                'thumbnail': info[u'thumbUrl'],
+            }]
 
-        video_url = mediaURL
+        # We try looking in other parts of the webpage
+        video_url = self._search_regex(r'<link rel="video_src" href=".*\?file=([^"]+)" />',
+            webpage, u'video URL')
 
         mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         video_title = mobj.group(1).decode('utf-8')
-
         video_uploader = mobj.group(2).decode('utf-8')
 
         return [{
@@ -921,188 +1022,95 @@ class PhotobucketIE(InfoExtractor):
 
 
 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)
+    """Information extractor for screen.yahoo.com."""
+    _VALID_URL = r'http://screen\.yahoo\.com/.*?-(?P<id>\d*?)\.html'
 
-    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
+    def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
-
-        video_id = mobj.group(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.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-                return
-
-            mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
-            if mobj is None:
-                self._downloader.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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.report_error(u'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,
-        }]
-
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        video_id = mobj.group('id')
+        webpage = self._download_webpage(url, video_id)
+        m_id = re.search(r'YUI\.namespace\("Media"\)\.CONTENT_ID = "(?P<new_id>.+?)";', webpage)
+
+        if m_id is None: 
+            # TODO: Check which url parameters are required
+            info_url = 'http://cosmos.bcst.yahoo.com/rest/v2/pops;lmsoverride=1;outputformat=mrss;cb=974419660;id=%s;rd=news.yahoo.com;datacontext=mdb;lg=KCa2IihxG3qE60vQ7HtyUy' % video_id
+            webpage = self._download_webpage(info_url, video_id, u'Downloading info webpage')
+            info_re = r'''<title><!\[CDATA\[(?P<title>.*?)\]\]></title>.*
+                        <description><!\[CDATA\[(?P<description>.*?)\]\]></description>.*
+                        <media:pubStart><!\[CDATA\[(?P<date>.*?)\ .*\]\]></media:pubStart>.*
+                        <media:content\ medium="image"\ url="(?P<thumb>.*?)"\ name="LARGETHUMB"
+                        '''
+            self.report_extraction(video_id)
+            m_info = re.search(info_re, webpage, re.VERBOSE|re.DOTALL)
+            if m_info is None:
+                raise ExtractorError(u'Unable to extract video info')
+            video_title = m_info.group('title')
+            video_description = m_info.group('description')
+            video_thumb = m_info.group('thumb')
+            video_date = m_info.group('date')
+            video_date = datetime.datetime.strptime(video_date, '%m/%d/%Y').strftime('%Y%m%d')
+    
+            # TODO: Find a way to get mp4 videos
+            rest_url = 'http://cosmos.bcst.yahoo.com/rest/v2/pops;element=stream;outputformat=mrss;id=%s;lmsoverride=1;bw=375;dynamicstream=1;cb=83521105;tech=flv,mp4;rd=news.yahoo.com;datacontext=mdb;lg=KCa2IihxG3qE60vQ7HtyUy' % video_id
+            webpage = self._download_webpage(rest_url, video_id, u'Downloading video url webpage')
+            m_rest = re.search(r'<media:content url="(?P<url>.*?)" path="(?P<path>.*?)"', webpage)
+            video_url = m_rest.group('url')
+            video_path = m_rest.group('path')
+            if m_rest is None:
+                raise ExtractorError(u'Unable to extract video url')
+
+        else: # We have to use a different method if another id is defined
+            long_id = m_id.group('new_id')
+            info_url = 'http://video.query.yahoo.com/v1/public/yql?q=SELECT%20*%20FROM%20yahoo.media.video.streams%20WHERE%20id%3D%22' + long_id + '%22%20AND%20format%3D%22mp4%2Cflv%22%20AND%20protocol%3D%22rtmp%2Chttp%22%20AND%20plrs%3D%2286Gj0vCaSzV_Iuf6hNylf2%22%20AND%20acctid%3D%22389%22%20AND%20plidl%3D%22%22%20AND%20pspid%3D%22792700001%22%20AND%20offnetwork%3D%22false%22%20AND%20site%3D%22ivy%22%20AND%20lang%3D%22en-US%22%20AND%20region%3D%22US%22%20AND%20override%3D%22none%22%3B&env=prod&format=json&callback=YUI.Env.JSONP.yui_3_8_1_1_1368368376830_335'
+            webpage = self._download_webpage(info_url, video_id, u'Downloading info json')
+            json_str = re.search(r'YUI.Env.JSONP.yui.*?\((.*?)\);', webpage).group(1)
+            info = json.loads(json_str)
+            res = info[u'query'][u'results'][u'mediaObj'][0]
+            stream = res[u'streams'][0]
+            video_path = stream[u'path']
+            video_url = stream[u'host']
+            meta = res[u'meta']
+            video_title = meta[u'title']
+            video_description = meta[u'description']
+            video_thumb = meta[u'thumbnail']
+            video_date = None # I can't find it
+
+        info_dict = {
+                     'id': video_id,
+                     'url': video_url,
+                     'play_path': video_path,
+                     'title':video_title,
+                     'description': video_description,
+                     'thumbnail': video_thumb,
+                     'upload_date': video_date,
+                     'ext': 'flv',
+                     }
+        return info_dict
 
 class VimeoIE(InfoExtractor):
     """Information extractor for vimeo.com."""
 
     # _VALID_URL matches Vimeo URLs
-    _VALID_URL = r'(?P<proto>https?://)?(?:(?:www|player)\.)?vimeo\.com/(?:(?:groups|album)/[^/]+/)?(?P<direct_link>play_redirect_hls\?clip_id=)?(?:videos?/)?(?P<id>[0-9]+)'
+    _VALID_URL = r'(?P<proto>https?://)?(?:(?:www|player)\.)?vimeo(?P<pro>pro)?\.com/(?:(?:(?:groups|album)/[^/]+)|(?:.*?)/)?(?P<direct_link>play_redirect_hls\?clip_id=)?(?:videos?/)?(?P<id>[0-9]+)'
     IE_NAME = u'vimeo'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[vimeo] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[vimeo] %s: Extracting information' % video_id)
-
     def _real_extract(self, url, new_video=True):
         # Extract ID from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('id')
         if not mobj.group('proto'):
             url = 'https://' + url
-        if mobj.group('direct_link'):
+        if mobj.group('direct_link') or mobj.group('pro'):
             url = 'https://vimeo.com/' + video_id
 
         # 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.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(request, video_id)
 
         # Now we begin extracting as much information as we can from what we
         # retrieved. First we extract the information common to all extractors,
@@ -1114,15 +1122,17 @@ class VimeoIE(InfoExtractor):
             config = webpage.split(' = {config:')[1].split(',assets:')[0]
             config = json.loads(config)
         except:
-            self._downloader.report_error(u'unable to extract info section')
-            return
+            if re.search('The creator of this video has not given you permission to embed it on this domain.', webpage):
+                raise ExtractorError(u'The author has restricted the access to this video, try with the "--referer" option')
+            else:
+                raise ExtractorError(u'Unable to extract info section')
 
         # 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]
+        video_uploader_id = config["video"]["owner"]["url"].split('/')[-1] if config["video"]["owner"]["url"] else None
 
         # Extract video thumbnail
         video_thumbnail = config["video"]["thumbnail"]
@@ -1130,7 +1140,7 @@ class VimeoIE(InfoExtractor):
         # Extract video description
         video_description = get_element_by_attribute("itemprop", "description", webpage)
         if video_description: video_description = clean_html(video_description)
-        else: video_description = ''
+        else: video_description = u''
 
         # Extract upload date
         video_upload_date = None
@@ -1161,11 +1171,10 @@ class VimeoIE(InfoExtractor):
                 video_quality = files[quality][0][2]
                 video_codec = files[quality][0][0]
                 video_extension = files[quality][0][1]
-                self._downloader.to_screen(u'[vimeo] %s: Downloading %s file at %s quality' % (video_id, video_codec.upper(), video_quality))
+                self.to_screen(u'%s: Downloading %s file at %s quality' % (video_id, video_codec.upper(), video_quality))
                 break
         else:
-            self._downloader.report_error(u'no known codec found')
-            return
+            raise ExtractorError(u'No known codec found')
 
         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())
@@ -1191,28 +1200,15 @@ class ArteTvIE(InfoExtractor):
 
     IE_NAME = u'arte.tv'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_webpage(self, video_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[arte.tv] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[arte.tv] %s: Extracting information' % video_id)
-
     def fetch_webpage(self, url):
         request = compat_urllib_request.Request(url)
         try:
             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.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve video webpage: %s' % compat_str(err))
         except ValueError as err:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         return webpage
 
     def grep_webpage(self, url, regex, regexFlags, matchTuples):
@@ -1221,13 +1217,11 @@ class ArteTvIE(InfoExtractor):
         info = {}
 
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         for (i, key, err) in matchTuples:
             if mobj.group(i) is None:
-                self._downloader.trouble(err)
-                return
+                raise ExtractorError(err)
             else:
                 info[key] = mobj.group(i)
 
@@ -1240,7 +1234,7 @@ class ArteTvIE(InfoExtractor):
             r'src="(.*?/videothek_js.*?\.js)',
             0,
             [
-                (1, 'url', u'ERROR: Invalid URL: %s' % url)
+                (1, 'url', u'Invalid URL: %s' % url)
             ]
         )
         http_host = url.split('/')[2]
@@ -1252,9 +1246,9 @@ class ArteTvIE(InfoExtractor):
                 '(rtmp://.*?)\'',
             re.DOTALL,
             [
-                (1, 'path',   u'ERROR: could not extract video path: %s' % url),
-                (2, 'player', u'ERROR: could not extract video player: %s' % url),
-                (3, 'url',    u'ERROR: could not extract video url: %s' % url)
+                (1, 'path',   u'could not extract video path: %s' % url),
+                (2, 'player', u'could not extract video player: %s' % url),
+                (3, 'url',    u'could not extract video url: %s' % url)
             ]
         )
         video_url = u'%s/%s' % (info.get('url'), info.get('path'))
@@ -1266,7 +1260,7 @@ class ArteTvIE(InfoExtractor):
             r'param name="movie".*?videorefFileUrl=(http[^\'"&]*)',
             0,
             [
-                (1, 'url', u'ERROR: Invalid URL: %s' % url)
+                (1, 'url', u'Invalid URL: %s' % url)
             ]
         )
         next_url = compat_urllib_parse.unquote(info.get('url'))
@@ -1275,7 +1269,7 @@ class ArteTvIE(InfoExtractor):
             r'<video lang="%s" ref="(http[^\'"&]*)' % video_lang,
             0,
             [
-                (1, 'url', u'ERROR: Could not find <video> tag: %s' % url)
+                (1, 'url', u'Could not find <video> tag: %s' % url)
             ]
         )
         next_url = compat_urllib_parse.unquote(info.get('url'))
@@ -1288,10 +1282,10 @@ class ArteTvIE(InfoExtractor):
                 '<url quality="hd">(.*?)</url>',
             re.DOTALL,
             [
-                (1, 'id',    u'ERROR: could not extract video id: %s' % url),
-                (2, 'title', u'ERROR: could not extract video title: %s' % url),
-                (3, 'date',  u'ERROR: could not extract video date: %s' % url),
-                (4, 'url',   u'ERROR: could not extract video url: %s' % url)
+                (1, 'id',    u'could not extract video id: %s' % url),
+                (2, 'title', u'could not extract video title: %s' % url),
+                (3, 'date',  u'could not extract video date: %s' % url),
+                (4, 'url',   u'could not extract video url: %s' % url)
             ]
         )
 
@@ -1299,7 +1293,7 @@ class ArteTvIE(InfoExtractor):
             'id':           info.get('id'),
             'url':          compat_urllib_parse.unquote(info.get('url')),
             'uploader':     u'arte.tv',
-            'upload_date':  info.get('date'),
+            'upload_date':  unified_strdate(info.get('date')),
             'title':        info.get('title').decode('utf-8'),
             'ext':          u'mp4',
             'format':       u'NA',
@@ -1325,25 +1319,18 @@ class GenericIE(InfoExtractor):
     _VALID_URL = r'.*'
     IE_NAME = u'generic'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_webpage(self, video_id):
         """Report webpage download."""
         if not self._downloader.params.get('test', False):
-            self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
-        self._downloader.to_screen(u'[generic] %s: Downloading webpage' % video_id)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
+            self._downloader.report_warning(u'Falling back on generic information extractor.')
+        super(GenericIE, self).report_download_webpage(video_id)
 
     def report_following_redirect(self, new_url):
         """Report information extraction."""
         self._downloader.to_screen(u'[redirect] Following redirect to %s' % new_url)
 
     def _test_redirect(self, url):
-        """Check if it is a redirect, like url shorteners, in case restart chain."""
+        """Check if it is a redirect, like url shorteners, in case return the new url."""
         class HeadRequest(compat_urllib_request.Request):
             def get_method(self):
                 return "HEAD"
@@ -1388,17 +1375,19 @@ class GenericIE(InfoExtractor):
             opener.add_handler(handler())
 
         response = opener.open(HeadRequest(url))
+        if response is None:
+            raise ExtractorError(u'Invalid URL protocol')
         new_url = response.geturl()
 
         if url == new_url:
             return False
 
         self.report_following_redirect(new_url)
-        self._downloader.download([new_url])
-        return True
+        return new_url
 
     def _real_extract(self, url):
-        if self._test_redirect(url): return
+        new_url = self._test_redirect(url)
+        if new_url: return [self.url_result(new_url)]
 
         video_id = url.split('/')[-1]
         try:
@@ -1406,8 +1395,7 @@ class GenericIE(InfoExtractor):
         except ValueError as err:
             # since this is the last-resort InfoExtractor, if
             # this error is thrown, it'll be thrown here
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         self.report_extraction(video_id)
         # Start with something easy: JW Player in SWFObject
@@ -1419,14 +1407,22 @@ class GenericIE(InfoExtractor):
             # Broaden the search a little bit: JWPlayer JS loader
             mobj = re.search(r'[^A-Za-z0-9]?file:\s*["\'](http[^\'"&]*)', webpage)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
-
-        # It's possible that one of the regexes
+            # Try to find twitter cards info
+            mobj = re.search(r'<meta (?:property|name)="twitter:player:stream" (?:content|value)="(.+?)"', webpage)
+        if mobj is None:
+            # We look for Open Graph info:
+            # We have to match any number spaces between elements, some sites try to align them (eg.: statigr.am)
+            m_video_type = re.search(r'<meta.*?property="og:video:type".*?content="video/(.*?)"', webpage)
+            # We only look in og:video if the MIME type is a video, don't try if it's a Flash player:
+            if m_video_type is not None:
+                mobj = re.search(r'<meta.*?property="og:video".*?content="(.*?)"', webpage)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+
+        # It's possible that one of the regexes
         # matched, but returned an empty group:
         if mobj.group(1) is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_url = compat_urllib_parse.unquote(mobj.group(1))
         video_id = os.path.basename(video_url)
@@ -1441,18 +1437,12 @@ class GenericIE(InfoExtractor):
         #   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.report_error(u'unable to extract title')
-            return
-        video_title = mobj.group(1)
+        video_title = self._html_search_regex(r'<title>(.*)</title>',
+            webpage, u'video title')
 
         # video uploader is domain name
-        mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
-        video_uploader = mobj.group(1)
+        video_uploader = self._search_regex(r'(?:https?://)?([^/]*)/.*',
+            url, u'video uploader')
 
         return [{
             'id':       video_id,
@@ -1464,53 +1454,19 @@ class GenericIE(InfoExtractor):
         }]
 
 
-class YoutubeSearchIE(InfoExtractor):
+class YoutubeSearchIE(SearchInfoExtractor):
     """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
+    _MAX_RESULTS = 1000
     IE_NAME = u'youtube:search'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
+    _SEARCH_KEY = 'ytsearch'
 
     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.report_error(u'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.report_error(u'invalid download number %s for query "%s"' % (n, query))
-                    return
-                elif n > self._max_youtube_results:
-                    self._downloader.report_warning(u'ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
-                    n = self._max_youtube_results
-                self._download_n_results(query, n)
-                return
-            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"""
+    def _get_n_results(self, query, n):
+        """Get a specified number of results for a query"""
 
         video_ids = []
         pagenum = 0
@@ -1523,13 +1479,11 @@ class YoutubeSearchIE(InfoExtractor):
             try:
                 data = compat_urllib_request.urlopen(request).read().decode('utf-8')
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download API page: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download API page: %s' % compat_str(err))
             api_response = json.loads(data)['data']
 
             if not 'items' in api_response:
-                self._downloader.trouble(u'[youtube] No video results')
-                return
+                raise ExtractorError(u'[youtube] No video results')
 
             new_ids = list(video['id'] for video in api_response['items'])
             video_ids += new_ids
@@ -1539,177 +1493,74 @@ class YoutubeSearchIE(InfoExtractor):
 
         if len(video_ids) > n:
             video_ids = video_ids[:n]
-        for id in video_ids:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
-        return
+        videos = [self.url_result('http://www.youtube.com/watch?v=%s' % id, 'Youtube') for id in video_ids]
+        return self.playlist_result(videos, query)
 
 
-class GoogleSearchIE(InfoExtractor):
+class GoogleSearchIE(SearchInfoExtractor):
     """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
+    _MORE_PAGES_INDICATOR = r'id="pnnext" class="pn"'
+    _MAX_RESULTS = 1000
     IE_NAME = u'video.google:search'
+    _SEARCH_KEY = 'gvsearch'
 
-    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.report_error(u'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.report_error(u'invalid download number %s for query "%s"' % (n, query))
-                    return
-                elif n > self._max_google_results:
-                    self._downloader.report_warning(u'gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
-                    n = self._max_google_results
-                self._download_n_results(query, n)
-                return
-            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
+    def _get_n_results(self, query, n):
+        """Get a specified number of results for a query"""
 
-        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.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+        res = {
+            '_type': 'playlist',
+            'id': query,
+            'entries': []
+        }
 
-            # Extract video identifiers
-            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                video_id = mobj.group(1)
-                if video_id not in video_ids:
-                    video_ids.append(video_id)
-                    if len(video_ids) == n:
-                        # Specified n videos reached
-                        for id in video_ids:
-                            self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
-                        return
-
-            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                for id in video_ids:
-                    self._downloader.download(['http://video.google.com/videoplay?docid=%s' % id])
-                return
+        for pagenum in itertools.count(1):
+            result_url = u'http://www.google.com/search?tbm=vid&q=%s&start=%s&hl=en' % (compat_urllib_parse.quote_plus(query), pagenum*10)
+            webpage = self._download_webpage(result_url, u'gvsearch:' + query,
+                                             note='Downloading result page ' + str(pagenum))
 
-            pagenum = pagenum + 1
+            for mobj in re.finditer(r'<h3 class="r"><a href="([^"]+)"', webpage):
+                e = {
+                    '_type': 'url',
+                    'url': mobj.group(1)
+                }
+                res['entries'].append(e)
 
+            if (pagenum * 10 > n) or not re.search(self._MORE_PAGES_INDICATOR, webpage):
+                return res
 
-class YahooSearchIE(InfoExtractor):
+class YahooSearchIE(SearchInfoExtractor):
     """Information Extractor for Yahoo! Video search queries."""
 
-    _WORKING = False
-    _VALID_URL = r'yvsearch(\d+|all)?:[\s\S]+'
-    _TEMPLATE_URL = 'http://video.yahoo.com/search/?p=%s&o=%s'
-    _VIDEO_INDICATOR = r'href="http://video\.yahoo\.com/watch/([0-9]+/[0-9]+)"'
-    _MORE_PAGES_INDICATOR = r'\s*Next'
-    _max_yahoo_results = 1000
-    IE_NAME = u'video.yahoo:search'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_page(self, query, pagenum):
-        """Report attempt to download playlist page with given number."""
-        query = query.decode(preferredencoding())
-        self._downloader.to_screen(u'[video.yahoo] query "%s": Downloading page %s' % (query, pagenum))
-
-    def _real_extract(self, query):
-        mobj = re.match(self._VALID_URL, query)
-        if mobj is None:
-            self._downloader.report_error(u'invalid search query "%s"' % query)
-            return
-
-        prefix, query = query.split(':')
-        prefix = prefix[8:]
-        query = query.encode('utf-8')
-        if prefix == '':
-            self._download_n_results(query, 1)
-            return
-        elif prefix == 'all':
-            self._download_n_results(query, self._max_yahoo_results)
-            return
-        else:
-            try:
-                n = int(prefix)
-                if n <= 0:
-                    self._downloader.report_error(u'invalid download number %s for query "%s"' % (n, query))
-                    return
-                elif n > self._max_yahoo_results:
-                    self._downloader.report_warning(u'yvsearch returns max %i results (you requested %i)' % (self._max_yahoo_results, n))
-                    n = self._max_yahoo_results
-                self._download_n_results(query, n)
-                return
-            except ValueError: # parsing prefix as integer fails
-                self._download_n_results(query, 1)
-                return
-
-    def _download_n_results(self, query, n):
-        """Downloads a specified number of results for a query"""
-
-        video_ids = []
-        already_seen = set()
-        pagenum = 1
+    _MAX_RESULTS = 1000
+    IE_NAME = u'screen.yahoo:search'
+    _SEARCH_KEY = 'yvsearch'
 
-        while True:
-            self.report_download_page(query, pagenum)
-            result_url = self._TEMPLATE_URL % (compat_urllib_parse.quote_plus(query), pagenum)
-            request = compat_urllib_request.Request(result_url)
-            try:
-                page = compat_urllib_request.urlopen(request).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+    def _get_n_results(self, query, n):
+        """Get a specified number of results for a query"""
 
-            # Extract video identifiers
-            for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                video_id = mobj.group(1)
-                if video_id not in already_seen:
-                    video_ids.append(video_id)
-                    already_seen.add(video_id)
-                    if len(video_ids) == n:
-                        # Specified n videos reached
-                        for id in video_ids:
-                            self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
-                        return
-
-            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                for id in video_ids:
-                    self._downloader.download(['http://video.yahoo.com/watch/%s' % id])
-                return
+        res = {
+            '_type': 'playlist',
+            'id': query,
+            'entries': []
+        }
+        for pagenum in itertools.count(0): 
+            result_url = u'http://video.search.yahoo.com/search/?p=%s&fr=screen&o=js&gs=0&b=%d' % (compat_urllib_parse.quote_plus(query), pagenum * 30)
+            webpage = self._download_webpage(result_url, query,
+                                             note='Downloading results page '+str(pagenum+1))
+            info = json.loads(webpage)
+            m = info[u'm']
+            results = info[u'results']
+
+            for (i, r) in enumerate(results):
+                if (pagenum * 30) +i >= n:
+                    break
+                mobj = re.search(r'(?P<url>screen\.yahoo\.com/.*?-\d*?\.html)"', r)
+                e = self.url_result('http://' + mobj.group('url'), 'Yahoo')
+                res['entries'].append(e)
+            if (pagenum * 30 +i >= n) or (m[u'last'] >= (m[u'total'] -1 )):
+                break
 
-            pagenum = pagenum + 1
+        return res
 
 
 class YoutubePlaylistIE(InfoExtractor):
@@ -1729,28 +1580,20 @@ class YoutubePlaylistIE(InfoExtractor):
                      |
                         ((?:PL|EC|UU)[0-9A-Za-z-_]{10,})
                      )"""
-    _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json'
+    _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json&safeSearch=none'
     _MAX_RESULTS = 50
     IE_NAME = u'youtube:playlist'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     @classmethod
     def suitable(cls, url):
         """Receives a URL and returns True if suitable for this IE."""
         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
 
-    def report_download_page(self, playlist_id, pagenum):
-        """Report attempt to download playlist page with given number."""
-        self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
-
     def _real_extract(self, url):
         # Extract playlist id
         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # Download playlist videos from API
         playlist_id = mobj.group(1) or mobj.group(2)
@@ -1758,102 +1601,93 @@ class YoutubePlaylistIE(InfoExtractor):
         videos = []
 
         while True:
-            self.report_download_page(playlist_id, page_num)
-
             url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, self._MAX_RESULTS * (page_num - 1) + 1)
-            try:
-                page = compat_urllib_request.urlopen(url).read().decode('utf8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+            page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
 
             try:
                 response = json.loads(page)
             except ValueError as err:
-                self._downloader.report_error(u'Invalid JSON in API response: ' + compat_str(err))
-                return
+                raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
 
-            if not 'feed' in response or not 'entry' in response['feed']:
-                self._downloader.report_error(u'Got a malformed response from YouTube API')
-                return
-            videos += [ (entry['yt$position']['$t'], entry['content']['src'])
-                        for entry in response['feed']['entry']
-                        if 'content' in entry ]
+            if 'feed' not in response:
+                raise ExtractorError(u'Got a malformed response from YouTube API')
+            playlist_title = response['feed']['title']['$t']
+            if 'entry' not in response['feed']:
+                # Number of videos is a multiple of self._MAX_RESULTS
+                break
+
+            for entry in response['feed']['entry']:
+                index = entry['yt$position']['$t']
+                if 'media$group' in entry and 'media$player' in entry['media$group']:
+                    videos.append((index, entry['media$group']['media$player']['url']))
 
             if len(response['feed']['entry']) < self._MAX_RESULTS:
                 break
             page_num += 1
 
         videos = [v[1] for v in sorted(videos)]
-        total = len(videos)
-
-        playliststart = self._downloader.params.get('playliststart', 1) - 1
-        playlistend = self._downloader.params.get('playlistend', -1)
-        if playlistend == -1:
-            videos = videos[playliststart:]
-        else:
-            videos = videos[playliststart:playlistend]
 
-        if len(videos) == total:
-            self._downloader.to_screen(u'[youtube] PL %s: Found %i videos' % (playlist_id, total))
-        else:
-            self._downloader.to_screen(u'[youtube] PL %s: Found %i videos, downloading %i' % (playlist_id, total, len(videos)))
-
-        for video in videos:
-            self._downloader.download([video])
-        return
+        url_results = [self.url_result(url, 'Youtube') for url in videos]
+        return [self.playlist_result(url_results, playlist_id, playlist_title)]
 
 
 class YoutubeChannelIE(InfoExtractor):
     """Information Extractor for YouTube channels."""
 
-    _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)(?:/.*)?$"
+    _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
     _TEMPLATE_URL = 'http://www.youtube.com/channel/%s/videos?sort=da&flow=list&view=0&page=%s&gl=US&hl=en'
-    _MORE_PAGES_INDICATOR = u"Next \N{RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK}"
+    _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
+    _MORE_PAGES_URL = 'http://www.youtube.com/channel_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
     IE_NAME = u'youtube:channel'
 
-    def report_download_page(self, channel_id, pagenum):
-        """Report attempt to download channel page with given number."""
-        self._downloader.to_screen(u'[youtube] Channel %s: Downloading page #%s' % (channel_id, pagenum))
+    def extract_videos_from_page(self, page):
+        ids_in_page = []
+        for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
+            if mobj.group(1) not in ids_in_page:
+                ids_in_page.append(mobj.group(1))
+        return ids_in_page
 
     def _real_extract(self, url):
         # Extract channel id
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
-        # Download channel pages
+        # Download channel page
         channel_id = mobj.group(1)
         video_ids = []
         pagenum = 1
 
-        while True:
-            self.report_download_page(channel_id, pagenum)
-            url = self._TEMPLATE_URL % (channel_id, pagenum)
-            request = compat_urllib_request.Request(url)
-            try:
-                page = compat_urllib_request.urlopen(request).read().decode('utf8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+        url = self._TEMPLATE_URL % (channel_id, pagenum)
+        page = self._download_webpage(url, channel_id,
+                                      u'Downloading page #%s' % pagenum)
 
-            # Extract video identifiers
-            ids_in_page = []
-            for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&', page):
-                if mobj.group(1) not in ids_in_page:
-                    ids_in_page.append(mobj.group(1))
-            video_ids.extend(ids_in_page)
+        # Extract video identifiers
+        ids_in_page = self.extract_videos_from_page(page)
+        video_ids.extend(ids_in_page)
 
-            if self._MORE_PAGES_INDICATOR not in page:
-                break
-            pagenum = pagenum + 1
+        # Download any subsequent channel pages using the json-based channel_ajax query
+        if self._MORE_PAGES_INDICATOR in page:
+            while True:
+                pagenum = pagenum + 1
+
+                url = self._MORE_PAGES_URL % (pagenum, channel_id)
+                page = self._download_webpage(url, channel_id,
+                                              u'Downloading page #%s' % pagenum)
+
+                page = json.loads(page)
+
+                ids_in_page = self.extract_videos_from_page(page['content_html'])
+                video_ids.extend(ids_in_page)
+
+                if self._MORE_PAGES_INDICATOR  not in page['load_more_widget_html']:
+                    break
 
         self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
 
-        for id in video_ids:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % id])
-        return
+        urls = ['http://www.youtube.com/watch?v=%s' % id for id in video_ids]
+        url_entries = [self.url_result(url, 'Youtube') for url in urls]
+        return [self.playlist_result(url_entries, channel_id)]
 
 
 class YoutubeUserIE(InfoExtractor):
@@ -1866,20 +1700,11 @@ class YoutubeUserIE(InfoExtractor):
     _VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
     IE_NAME = u'youtube:user'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_page(self, username, start_index):
-        """Report attempt to download user page."""
-        self._downloader.to_screen(u'[youtube] user %s: Downloading video ids from %d to %d' %
-                (username, start_index, start_index + self._GDATA_PAGE_SIZE))
-
     def _real_extract(self, url):
         # Extract username
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         username = mobj.group(1)
 
@@ -1893,15 +1718,10 @@ class YoutubeUserIE(InfoExtractor):
 
         while True:
             start_index = pagenum * self._GDATA_PAGE_SIZE + 1
-            self.report_download_page(username, start_index)
-
-            request = compat_urllib_request.Request(self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index))
 
-            try:
-                page = compat_urllib_request.urlopen(request).read().decode('utf-8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+            gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
+            page = self._download_webpage(gdata_url, username,
+                                          u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
 
             # Extract video identifiers
             ids_in_page = []
@@ -1923,20 +1743,9 @@ class YoutubeUserIE(InfoExtractor):
 
             pagenum += 1
 
-        all_ids_count = len(video_ids)
-        playliststart = self._downloader.params.get('playliststart', 1) - 1
-        playlistend = self._downloader.params.get('playlistend', -1)
-
-        if playlistend == -1:
-            video_ids = video_ids[playliststart:]
-        else:
-            video_ids = video_ids[playliststart:playlistend]
-
-        self._downloader.to_screen(u"[youtube] user %s: Collected %d video ids (downloading %d of them)" %
-                (username, all_ids_count, len(video_ids)))
-
-        for video_id in video_ids:
-            self._downloader.download(['http://www.youtube.com/watch?v=%s' % video_id])
+        urls = ['http://www.youtube.com/watch?v=%s' % video_id for video_id in video_ids]
+        url_results = [self.url_result(url, 'Youtube') for url in urls]
+        return [self.playlist_result(url_results, playlist_title = username)]
 
 
 class BlipTVUserIE(InfoExtractor):
@@ -1946,34 +1755,19 @@ class BlipTVUserIE(InfoExtractor):
     _PAGE_SIZE = 12
     IE_NAME = u'blip.tv:user'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_download_page(self, username, pagenum):
-        """Report attempt to download user page."""
-        self._downloader.to_screen(u'[%s] user %s: Downloading video ids from page %d' %
-                (self.IE_NAME, username, pagenum))
-
     def _real_extract(self, url):
         # Extract username
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid url: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         username = mobj.group(1)
 
         page_base = 'http://m.blip.tv/pr/show_get_full_episode_list?users_id=%s&lite=0&esi=1'
 
-        request = compat_urllib_request.Request(url)
-
-        try:
-            page = compat_urllib_request.urlopen(request).read().decode('utf-8')
-            mobj = re.search(r'data-users-id="([^"]+)"', page)
-            page_base = page_base % mobj.group(1)
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-            return
+        page = self._download_webpage(url, username, u'Downloading user page')
+        mobj = re.search(r'data-users-id="([^"]+)"', page)
+        page_base = page_base % mobj.group(1)
 
 
         # Download video ids using BlipTV Ajax calls. Result size per
@@ -1985,14 +1779,9 @@ class BlipTVUserIE(InfoExtractor):
         pagenum = 1
 
         while True:
-            self.report_download_page(username, pagenum)
             url = page_base + "&page=" + str(pagenum)
-            request = compat_urllib_request.Request( url )
-            try:
-                page = compat_urllib_request.urlopen(request).read().decode('utf-8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % str(err))
-                return
+            page = self._download_webpage(url, username,
+                                          u'Downloading video ids from page %d' % pagenum)
 
             # Extract video identifiers
             ids_in_page = []
@@ -2014,20 +1803,9 @@ class BlipTVUserIE(InfoExtractor):
 
             pagenum += 1
 
-        all_ids_count = len(video_ids)
-        playliststart = self._downloader.params.get('playliststart', 1) - 1
-        playlistend = self._downloader.params.get('playlistend', -1)
-
-        if playlistend == -1:
-            video_ids = video_ids[playliststart:]
-        else:
-            video_ids = video_ids[playliststart:playlistend]
-
-        self._downloader.to_screen(u"[%s] user %s: Collected %d video ids (downloading %d of them)" %
-                (self.IE_NAME, username, all_ids_count, len(video_ids)))
-
-        for video_id in video_ids:
-            self._downloader.download([u'http://blip.tv/'+video_id])
+        urls = [u'http://blip.tv/%s' % video_id for video_id in video_ids]
+        url_entries = [self.url_result(url, 'BlipTV') for url in urls]
+        return [self.playlist_result(url_entries, playlist_title = username)]
 
 
 class DepositFilesIE(InfoExtractor):
@@ -2035,14 +1813,6 @@ class DepositFilesIE(InfoExtractor):
 
     _VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles\.com/(?:../(?#locale))?files/(.+)'
 
-    def report_download_webpage(self, file_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[DepositFiles] %s: Downloading webpage' % file_id)
-
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[DepositFiles] %s: Extracting information' % file_id)
-
     def _real_extract(self, url):
         file_id = url.split('/')[-1]
         # Rebuild url in english locale
@@ -2055,8 +1825,7 @@ class DepositFilesIE(InfoExtractor):
             self.report_download_webpage(file_id)
             webpage = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve file webpage: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve file webpage: %s' % compat_str(err))
 
         # Search for the real file URL
         mobj = re.search(r'<form action="(http://fileshare.+?)"', webpage)
@@ -2065,20 +1834,15 @@ class DepositFilesIE(InfoExtractor):
             mobj = re.search(r'<strong>(Attention.*?)</strong>', webpage, re.DOTALL)
             if (mobj is not None) and (mobj.group(1) is not None):
                 restriction_message = re.sub('\s+', ' ', mobj.group(1)).strip()
-                self._downloader.report_error(u'%s' % restriction_message)
+                raise ExtractorError(u'%s' % restriction_message)
             else:
-                self._downloader.report_error(u'unable to extract download URL from: %s' % url)
-            return
+                raise ExtractorError(u'Unable to extract download URL from: %s' % url)
 
         file_url = mobj.group(1)
         file_extension = os.path.splitext(file_url)[1][1:]
 
         # Search for file title
-        mobj = re.search(r'<b title="(.*?)">', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
-        file_title = mobj.group(1).decode('utf-8')
+        file_title = self._search_regex(r'<b title="(.*?)">', webpage, u'title')
 
         return [{
             'id':       file_id.decode('utf-8'),
@@ -2100,7 +1864,7 @@ class FacebookIE(InfoExtractor):
 
     def report_login(self):
         """Report attempt to log in."""
-        self._downloader.to_screen(u'[%s] Logging in' % self.IE_NAME)
+        self.to_screen(u'Logging in')
 
     def _real_initialize(self):
         if self._downloader is None:
@@ -2149,14 +1913,13 @@ class FacebookIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group('ID')
 
         url = 'https://www.facebook.com/video/video.php?v=%s' % video_id
         webpage = self._download_webpage(url, video_id)
 
-        BEFORE = '[["allowFullScreen","true"],["allowScriptAccess","always"],["salign","tl"],["scale","noscale"],["wmode","opaque"]].forEach(function(param) {swf.addParam(param[0], param[1]);});\n'
+        BEFORE = '{swf.addParam(param[0], param[1]);});\n'
         AFTER = '.forEach(function(variable) {swf.addVariable(variable[0], variable[1]);});'
         m = re.search(re.escape(BEFORE) + '(.*?)' + re.escape(AFTER), webpage)
         if not m:
@@ -2164,17 +1927,17 @@ class FacebookIE(InfoExtractor):
         data = dict(json.loads(m.group(1)))
         params_raw = compat_urllib_parse.unquote(data['params'])
         params = json.loads(params_raw)
-        video_url = params['hd_src']
+        video_data = params['video_data'][0]
+        video_url = video_data.get('hd_src')
         if not video_url:
-            video_url = params['sd_src']
+            video_url = video_data['sd_src']
         if not video_url:
             raise ExtractorError(u'Cannot find video URL')
-        video_duration = int(params['video_duration'])
+        video_duration = int(video_data['video_duration'])
+        thumbnail = video_data['thumbnail_src']
 
-        m = re.search('<h2 class="uiHeaderTitle">([^<]+)</h2>', webpage)
-        if not m:
-            raise ExtractorError(u'Cannot find title in webpage')
-        video_title = unescapeHTML(m.group(1))
+        video_title = self._html_search_regex('<h2 class="uiHeaderTitle">([^<]+)</h2>',
+            webpage, u'title')
 
         info = {
             'id': video_id,
@@ -2182,7 +1945,7 @@ class FacebookIE(InfoExtractor):
             'url': video_url,
             'ext': 'mp4',
             'duration': video_duration,
-            'thumbnail': params['thumbnail_src'],
+            'thumbnail': thumbnail,
         }
         return [info]
 
@@ -2190,24 +1953,23 @@ class FacebookIE(InfoExtractor):
 class BlipTVIE(InfoExtractor):
     """Information extractor for blip.tv"""
 
-    _VALID_URL = r'^(?:https?://)?(?:\w+\.)?blip\.tv(/.+)$'
+    _VALID_URL = r'^(?:https?://)?(?:\w+\.)?blip\.tv/((.+/)|(play/)|(api\.swf#))(.+)$'
     _URL_EXT = r'^.*\.([a-z0-9]+)$'
     IE_NAME = u'blip.tv'
 
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
     def report_direct_download(self, title):
         """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Direct download detected' % (self.IE_NAME, title))
+        self.to_screen(u'%s: Direct download detected' % title)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
+        # See https://github.com/rg3/youtube-dl/issues/857
+        api_mobj = re.match(r'http://a\.blip\.tv/api\.swf#(?P<video_id>[\d\w]+)', url)
+        if api_mobj is not None:
+            url = 'http://blip.tv/play/g_%s' % api_mobj.group('video_id')
         urlp = compat_urllib_parse_urlparse(url)
         if urlp.path.startswith('/play/'):
             request = compat_urllib_request.Request(url)
@@ -2252,8 +2014,7 @@ class BlipTVIE(InfoExtractor):
                 json_code_bytes = urlh.read()
                 json_code = json_code_bytes.decode('utf-8')
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to read video info webpage: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to read video info webpage: %s' % compat_str(err))
 
             try:
                 json_data = json.loads(json_code)
@@ -2283,8 +2044,7 @@ class BlipTVIE(InfoExtractor):
                     'user_agent': 'iTunes/10.6.1',
                 }
             except (ValueError,KeyError) as err:
-                self._downloader.report_error(u'unable to parse video information: %s' % repr(err))
-                return
+                raise ExtractorError(u'Unable to parse video information: %s' % repr(err))
 
         return [info]
 
@@ -2295,49 +2055,150 @@ class MyVideoIE(InfoExtractor):
     _VALID_URL = r'(?:http://)?(?:www\.)?myvideo\.de/watch/([0-9]+)/([^?/]+).*'
     IE_NAME = u'myvideo'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[myvideo] %s: Extracting information' % video_id)
+    # Original Code from: https://github.com/dersphere/plugin.video.myvideo_de.git
+    # Released into the Public Domain by Tristan Fischer on 2013-05-19
+    # https://github.com/rg3/youtube-dl/pull/842
+    def __rc4crypt(self,data, key):
+        x = 0
+        box = list(range(256))
+        for i in list(range(256)):
+            x = (x + box[i] + compat_ord(key[i % len(key)])) % 256
+            box[i], box[x] = box[x], box[i]
+        x = 0
+        y = 0
+        out = ''
+        for char in data:
+            x = (x + 1) % 256
+            y = (y + box[x]) % 256
+            box[x], box[y] = box[y], box[x]
+            out += chr(compat_ord(char) ^ box[(box[x] + box[y]) % 256])
+        return out
+
+    def __md5(self,s):
+        return hashlib.md5(s).hexdigest().encode()
 
     def _real_extract(self,url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._download.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'invalid URL: %s' % url)
 
         video_id = mobj.group(1)
 
+        GK = (
+          b'WXpnME1EZGhNRGhpTTJNM01XVmhOREU0WldNNVpHTTJOakpt'
+          b'TW1FMU5tVTBNR05pWkRaa05XRXhNVFJoWVRVd1ptSXhaVEV3'
+          b'TnpsbA0KTVRkbU1tSTRNdz09'
+        )
+
         # Get video webpage
         webpage_url = 'http://www.myvideo.de/watch/%s' % video_id
         webpage = self._download_webpage(webpage_url, video_id)
 
-        self.report_extraction(video_id)
-        mobj = re.search(r'<link rel=\'image_src\' href=\'(http://is[0-9].myvideo\.de/de/movie[0-9]+/[a-f0-9]+)/thumbs/.*?\.jpg\'',
-                 webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract media URL')
-            return
-        video_url = mobj.group(1) + ('/%s.flv' % video_id)
+        mobj = re.search('source src=\'(.+?)[.]([^.]+)\'', webpage)
+        if mobj is not None:
+            self.report_extraction(video_id)
+            video_url = mobj.group(1) + '.flv'
+
+            video_title = self._html_search_regex('<title>([^<]+)</title>',
+                webpage, u'title')
+
+            video_ext = self._search_regex('[.](.+?)$', video_url, u'extension')
+
+            return [{
+                'id':       video_id,
+                'url':      video_url,
+                'uploader': None,
+                'upload_date':  None,
+                'title':    video_title,
+                'ext':      u'flv',
+            }]
 
-        mobj = re.search('<title>([^<]+)</title>', webpage)
+        # try encxml
+        mobj = re.search('var flashvars={(.+?)}', webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract video')
+
+        params = {}
+        encxml = ''
+        sec = mobj.group(1)
+        for (a, b) in re.findall('(.+?):\'(.+?)\',?', sec):
+            if not a == '_encxml':
+                params[a] = b
+            else:
+                encxml = compat_urllib_parse.unquote(b)
+        if not params.get('domain'):
+            params['domain'] = 'www.myvideo.de'
+        xmldata_url = '%s?%s' % (encxml, compat_urllib_parse.urlencode(params))
+        if 'flash_playertype=MTV' in xmldata_url:
+            self._downloader.report_warning(u'avoiding MTV player')
+            xmldata_url = (
+                'http://www.myvideo.de/dynamic/get_player_video_xml.php'
+                '?flash_playertype=D&ID=%s&_countlimit=4&autorun=yes'
+            ) % video_id
+
+        # get enc data
+        enc_data = self._download_webpage(xmldata_url, video_id).split('=')[1]
+        enc_data_b = binascii.unhexlify(enc_data)
+        sk = self.__md5(
+            base64.b64decode(base64.b64decode(GK)) +
+            self.__md5(
+                str(video_id).encode('utf-8')
+            )
+        )
+        dec_data = self.__rc4crypt(enc_data_b, sk)
+
+        # extracting infos
+        self.report_extraction(video_id)
+
+        video_url = None
+        mobj = re.search('connectionurl=\'(.*?)\'', dec_data)
+        if mobj:
+            video_url = compat_urllib_parse.unquote(mobj.group(1))
+            if 'myvideo2flash' in video_url:
+                self._downloader.report_warning(u'forcing RTMPT ...')
+                video_url = video_url.replace('rtmpe://', 'rtmpt://')
+
+        if not video_url:
+            # extract non rtmp videos
+            mobj = re.search('path=\'(http.*?)\' source=\'(.*?)\'', dec_data)
+            if mobj is None:
+                raise ExtractorError(u'unable to extract url')
+            video_url = compat_urllib_parse.unquote(mobj.group(1)) + compat_urllib_parse.unquote(mobj.group(2))
+
+        video_file = self._search_regex('source=\'(.*?)\'', dec_data, u'video file')
+        video_file = compat_urllib_parse.unquote(video_file)
+
+        if not video_file.endswith('f4m'):
+            ppath, prefix = video_file.split('.')
+            video_playpath = '%s:%s' % (prefix, ppath)
+            video_hls_playlist = ''
+        else:
+            video_playpath = ''
+            video_hls_playlist = (
+                video_filepath + video_file
+            ).replace('.f4m', '.m3u8')
+
+        video_swfobj = self._search_regex('swfobject.embedSWF\(\'(.+?)\'', webpage, u'swfobj')
+        video_swfobj = compat_urllib_parse.unquote(video_swfobj)
 
-        video_title = mobj.group(1)
+        video_title = self._html_search_regex("<h1(?: class='globalHd')?>(.*?)</h1>",
+            webpage, u'title')
 
         return [{
-            'id':       video_id,
-            'url':      video_url,
-            'uploader': None,
-            'upload_date':  None,
-            'title':    video_title,
-            'ext':      u'flv',
+            'id':                 video_id,
+            'url':                video_url,
+            'tc_url':             video_url,
+            'uploader':           None,
+            'upload_date':        None,
+            'title':              video_title,
+            'ext':                u'flv',
+            'play_path':          video_playpath,
+            'video_file':         video_file,
+            'video_hls_playlist': video_hls_playlist,
+            'player_url':         video_swfobj,
         }]
 
+
 class ComedyCentralIE(InfoExtractor):
     """Information extractor for The Daily Show and Colbert Report """
 
@@ -2379,15 +2240,6 @@ class ComedyCentralIE(InfoExtractor):
         """Receives a URL and returns True if suitable for this IE."""
         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
 
-    def report_extraction(self, episode_id):
-        self._downloader.to_screen(u'[comedycentral] %s: Extracting information' % episode_id)
-
-    def report_config_download(self, episode_id, media_id):
-        self._downloader.to_screen(u'[comedycentral] %s: Downloading configuration for %s' % (episode_id, media_id))
-
-    def report_index_download(self, episode_id):
-        self._downloader.to_screen(u'[comedycentral] %s: Downloading show index' % episode_id)
-
     def _print_formats(self, formats):
         print('Available formats:')
         for x in formats:
@@ -2397,8 +2249,7 @@ class ComedyCentralIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         if mobj.group('shortname'):
             if mobj.group('shortname') in ('tds', 'thedailyshow'):
@@ -2421,24 +2272,15 @@ class ComedyCentralIE(InfoExtractor):
             else:
                 epTitle = mobj.group('episode')
 
-        req = compat_urllib_request.Request(url)
         self.report_extraction(epTitle)
-        try:
-            htmlHandle = compat_urllib_request.urlopen(req)
-            html = htmlHandle.read()
-            webpage = html.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-            return
+        webpage,htmlHandle = self._download_webpage_handle(url, epTitle)
         if dlNewest:
             url = htmlHandle.geturl()
             mobj = re.match(self._VALID_URL, url, re.VERBOSE)
             if mobj is None:
-                self._downloader.report_error(u'Invalid redirected URL: ' + url)
-                return
+                raise ExtractorError(u'Invalid redirected URL: ' + url)
             if mobj.group('episode') == '':
-                self._downloader.report_error(u'Redirected URL is still not specific: ' + url)
-                return
+                raise ExtractorError(u'Redirected URL is still not specific: ' + url)
             epTitle = mobj.group('episode')
 
         mMovieParams = re.findall('(?:<param name="movie" value="|var url = ")(http://media.mtvnservices.com/([^"]*(?:episode|video).*?:.*?))"', webpage)
@@ -2450,19 +2292,15 @@ class ComedyCentralIE(InfoExtractor):
 
             altMovieParams = re.findall('data-mgid="([^"]*(?:episode|video).*?:.*?)"', webpage)
             if len(altMovieParams) == 0:
-                self._downloader.report_error(u'unable to find Flash URL in webpage ' + url)
-                return
+                raise ExtractorError(u'unable to find Flash URL in webpage ' + url)
             else:
                 mMovieParams = [("http://media.mtvnservices.com/" + altMovieParams[0], altMovieParams[0])]
 
         uri = mMovieParams[0][1]
         indexUrl = 'http://shadow.comedycentral.com/feeds/video_player/mrss/?' + compat_urllib_parse.urlencode({'uri': uri})
-        self.report_index_download(epTitle)
-        try:
-            indexXml = compat_urllib_request.urlopen(indexUrl).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download episode index: ' + compat_str(err))
-            return
+        indexXml = self._download_webpage(indexUrl, epTitle,
+                                          u'Downloading show index',
+                                          u'unable to download episode index')
 
         results = []
 
@@ -2473,17 +2311,12 @@ class ComedyCentralIE(InfoExtractor):
             shortMediaId = mediaId.split(':')[-1]
             showId = mediaId.split(':')[-2].replace('.com', '')
             officialTitle = itemEl.findall('./title')[0].text
-            officialDate = itemEl.findall('./pubDate')[0].text
+            officialDate = unified_strdate(itemEl.findall('./pubDate')[0].text)
 
             configUrl = ('http://www.comedycentral.com/global/feeds/entertainment/media/mediaGenEntertainment.jhtml?' +
                         compat_urllib_parse.urlencode({'uri': mediaId}))
-            configReq = compat_urllib_request.Request(configUrl)
-            self.report_config_download(epTitle, shortMediaId)
-            try:
-                configXml = compat_urllib_request.urlopen(configReq).read()
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download webpage: %s' % compat_str(err))
-                return
+            configXml = self._download_webpage(configUrl, epTitle,
+                                               u'Downloading configuration for %s' % shortMediaId)
 
             cdoc = xml.etree.ElementTree.fromstring(configXml)
             turls = []
@@ -2540,47 +2373,34 @@ class EscapistIE(InfoExtractor):
     _VALID_URL = r'^(https?://)?(www\.)?escapistmagazine\.com/videos/view/(?P<showname>[^/]+)/(?P<episode>[^/?]+)[/?]?.*$'
     IE_NAME = u'escapist'
 
-    def report_extraction(self, showName):
-        self._downloader.to_screen(u'[escapist] %s: Extracting information' % showName)
-
-    def report_config_download(self, showName):
-        self._downloader.to_screen(u'[escapist] %s: Downloading configuration' % showName)
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         showName = mobj.group('showname')
         videoId = mobj.group('episode')
 
-        self.report_extraction(showName)
-        try:
-            webPage = compat_urllib_request.urlopen(url)
-            webPageBytes = webPage.read()
-            m = re.match(r'text/html; charset="?([^"]+)"?', webPage.headers['Content-Type'])
-            webPage = webPageBytes.decode(m.group(1) if m else 'utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download webpage: ' + compat_str(err))
-            return
+        self.report_extraction(videoId)
+        webpage = self._download_webpage(url, videoId)
 
-        descMatch = re.search('<meta name="description" content="([^"]*)"', webPage)
-        description = unescapeHTML(descMatch.group(1))
-        imgMatch = re.search('<meta property="og:image" content="([^"]*)"', webPage)
-        imgUrl = unescapeHTML(imgMatch.group(1))
-        playerUrlMatch = re.search('<meta property="og:video" content="([^"]*)"', webPage)
-        playerUrl = unescapeHTML(playerUrlMatch.group(1))
-        configUrlMatch = re.search('config=(.*)$', playerUrl)
-        configUrl = compat_urllib_parse.unquote(configUrlMatch.group(1))
+        videoDesc = self._html_search_regex('<meta name="description" content="([^"]*)"',
+            webpage, u'description', fatal=False)
 
-        self.report_config_download(showName)
-        try:
-            configJSON = compat_urllib_request.urlopen(configUrl)
-            m = re.match(r'text/html; charset="?([^"]+)"?', configJSON.headers['Content-Type'])
-            configJSON = configJSON.read().decode(m.group(1) if m else 'utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download configuration: ' + compat_str(err))
-            return
+        imgUrl = self._html_search_regex('<meta property="og:image" content="([^"]*)"',
+            webpage, u'thumbnail', fatal=False)
+
+        playerUrl = self._html_search_regex('<meta property="og:video" content="([^"]*)"',
+            webpage, u'player url')
+
+        title = self._html_search_regex('<meta name="title" content="([^"]*)"',
+            webpage, u'player url').split(' : ')[-1]
+
+        configUrl = self._search_regex('config=(.*)$', playerUrl, u'config url')
+        configUrl = compat_urllib_parse.unquote(configUrl)
+
+        configJSON = self._download_webpage(configUrl, videoId,
+                                            u'Downloading configuration',
+                                            u'unable to download configuration')
 
         # Technically, it's JavaScript, not JSON
         configJSON = configJSON.replace("'", '"')
@@ -2588,8 +2408,7 @@ class EscapistIE(InfoExtractor):
         try:
             config = json.loads(configJSON)
         except (ValueError,) as err:
-            self._downloader.report_error(u'Invalid JSON in configuration file: ' + compat_str(err))
-            return
+            raise ExtractorError(u'Invalid JSON in configuration file: ' + compat_str(err))
 
         playlist = config['playlist']
         videoUrl = playlist[1]['url']
@@ -2599,10 +2418,10 @@ class EscapistIE(InfoExtractor):
             'url': videoUrl,
             'uploader': showName,
             'upload_date': None,
-            'title': showName,
+            'title': title,
             'ext': 'mp4',
             'thumbnail': imgUrl,
-            'description': description,
+            'description': videoDesc,
             'player_url': playerUrl,
         }
 
@@ -2617,17 +2436,12 @@ class CollegeHumorIE(InfoExtractor):
 
     def report_manifest(self, video_id):
         """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Downloading XML manifest' % (self.IE_NAME, video_id))
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+        self.to_screen(u'%s: Downloading XML manifest' % video_id)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group('videoid')
 
         info = {
@@ -2641,8 +2455,7 @@ class CollegeHumorIE(InfoExtractor):
         try:
             metaXml = compat_urllib_request.urlopen(xmlUrl).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video info XML: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video info XML: %s' % compat_str(err))
 
         mdoc = xml.etree.ElementTree.fromstring(metaXml)
         try:
@@ -2652,16 +2465,14 @@ class CollegeHumorIE(InfoExtractor):
             info['thumbnail'] = videoNode.findall('./thumbnail')[0].text
             manifest_url = videoNode.findall('./file')[0].text
         except IndexError:
-            self._downloader.report_error(u'Invalid metadata XML file')
-            return
+            raise ExtractorError(u'Invalid metadata XML file')
 
         manifest_url += '?hdcore=2.10.3'
         self.report_manifest(video_id)
         try:
             manifestXml = compat_urllib_request.urlopen(manifest_url).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video info XML: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video info XML: %s' % compat_str(err))
 
         adoc = xml.etree.ElementTree.fromstring(manifestXml)
         try:
@@ -2669,8 +2480,7 @@ class CollegeHumorIE(InfoExtractor):
             node_id = media_node.attrib['url']
             video_id = adoc.findall('./{http://ns.adobe.com/f4m/1.0}id')[0].text
         except IndexError as err:
-            self._downloader.report_error(u'Invalid manifest file')
-            return
+            raise ExtractorError(u'Invalid manifest file')
 
         url_pr = compat_urllib_parse_urlparse(manifest_url)
         url = url_pr.scheme + '://' + url_pr.netloc + '/z' + video_id[:-2] + '/' + node_id + 'Seg1-Frag1'
@@ -2686,44 +2496,27 @@ class XVideosIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?xvideos\.com/video([0-9]+)(?:.*)'
     IE_NAME = u'xvideos'
 
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group(1)
 
         webpage = self._download_webpage(url, video_id)
 
         self.report_extraction(video_id)
 
-
         # Extract video URL
-        mobj = re.search(r'flv_url=(.+?)&', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
-        video_url = compat_urllib_parse.unquote(mobj.group(1))
-
+        video_url = compat_urllib_parse.unquote(self._search_regex(r'flv_url=(.+?)&',
+            webpage, u'video URL'))
 
         # Extract title
-        mobj = re.search(r'<title>(.*?)\s+-\s+XVID', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
-        video_title = mobj.group(1)
-
+        video_title = self._html_search_regex(r'<title>(.*?)\s+-\s+XVID',
+            webpage, u'title')
 
         # Extract video thumbnail
-        mobj = re.search(r'http://(?:img.*?\.)xvideos.com/videos/thumbs/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/([a-fA-F0-9.]+jpg)', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract video thumbnail')
-            return
-        video_thumbnail = mobj.group(0)
+        video_thumbnail = self._search_regex(r'http://(?:img.*?\.)xvideos.com/videos/thumbs/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/[a-fA-F0-9]+/([a-fA-F0-9.]+jpg)',
+            webpage, u'thumbnail', fatal=False)
 
         info = {
             'id': video_id,
@@ -2751,62 +2544,46 @@ class SoundcloudIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/([\w\d-]+)'
     IE_NAME = u'soundcloud'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_resolve(self, video_id):
         """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Resolving id' % (self.IE_NAME, video_id))
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Retrieving stream' % (self.IE_NAME, video_id))
+        self.to_screen(u'%s: Resolving id' % video_id)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # extract uploader (which is in the url)
         uploader = mobj.group(1)
         # extract simple title (uploader + slug of song title)
         slug_title =  mobj.group(2)
         simple_title = uploader + u'-' + slug_title
+        full_title = '%s/%s' % (uploader, slug_title)
 
-        self.report_resolve('%s/%s' % (uploader, slug_title))
+        self.report_resolve(full_title)
 
         url = 'http://soundcloud.com/%s/%s' % (uploader, slug_title)
         resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
-        request = compat_urllib_request.Request(resolv_url)
-        try:
-            info_json_bytes = compat_urllib_request.urlopen(request).read()
-            info_json = info_json_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video webpage: %s' % compat_str(err))
-            return
+        info_json = self._download_webpage(resolv_url, full_title, u'Downloading info JSON')
 
         info = json.loads(info_json)
         video_id = info['id']
-        self.report_extraction('%s/%s' % (uploader, slug_title))
+        self.report_extraction(full_title)
 
         streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
-        request = compat_urllib_request.Request(streams_url)
-        try:
-            stream_json_bytes = compat_urllib_request.urlopen(request).read()
-            stream_json = stream_json_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download stream definitions: %s' % compat_str(err))
-            return
+        stream_json = self._download_webpage(streams_url, full_title,
+                                             u'Downloading stream definitions',
+                                             u'unable to download stream definitions')
 
         streams = json.loads(stream_json)
         mediaURL = streams['http_mp3_128_url']
+        upload_date = unified_strdate(info['created_at'])
 
         return [{
             'id':       info['id'],
             'url':      mediaURL,
             'uploader': info['user']['username'],
-            'upload_date':  info['created_at'],
+            'upload_date': upload_date,
             'title':    info['title'],
             'ext':      u'mp3',
             'description': info['description'],
@@ -2822,63 +2599,45 @@ class SoundcloudSetIE(InfoExtractor):
      """
 
     _VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/sets/([\w\d-]+)'
-    IE_NAME = u'soundcloud'
-
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
+    IE_NAME = u'soundcloud:set'
 
     def report_resolve(self, video_id):
         """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Resolving id' % (self.IE_NAME, video_id))
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Retrieving stream' % (self.IE_NAME, video_id))
+        self.to_screen(u'%s: Resolving id' % video_id)
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         # extract uploader (which is in the url)
         uploader = mobj.group(1)
         # extract simple title (uploader + slug of song title)
         slug_title =  mobj.group(2)
         simple_title = uploader + u'-' + slug_title
+        full_title = '%s/sets/%s' % (uploader, slug_title)
 
-        self.report_resolve('%s/sets/%s' % (uploader, slug_title))
+        self.report_resolve(full_title)
 
         url = 'http://soundcloud.com/%s/sets/%s' % (uploader, slug_title)
         resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
-        request = compat_urllib_request.Request(resolv_url)
-        try:
-            info_json_bytes = compat_urllib_request.urlopen(request).read()
-            info_json = info_json_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err))
-            return
+        info_json = self._download_webpage(resolv_url, full_title)
 
         videos = []
         info = json.loads(info_json)
         if 'errors' in info:
             for err in info['errors']:
-                self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % compat_str(err['error_message']))
+                self._downloader.report_error(u'unable to download video webpage: %s' % compat_str(err['error_message']))
             return
 
+        self.report_extraction(full_title)
         for track in info['tracks']:
             video_id = track['id']
-            self.report_extraction('%s/sets/%s' % (uploader, slug_title))
 
             streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
-            request = compat_urllib_request.Request(streams_url)
-            try:
-                stream_json_bytes = compat_urllib_request.urlopen(request).read()
-                stream_json = stream_json_bytes.decode('utf-8')
-            except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.trouble(u'ERROR: unable to download stream definitions: %s' % compat_str(err))
-                return
+            stream_json = self._download_webpage(streams_url, video_id, u'Downloading track info JSON')
 
+            self.report_extraction(video_id)
             streams = json.loads(stream_json)
             mediaURL = streams['http_mp3_128_url']
 
@@ -2886,7 +2645,7 @@ class SoundcloudSetIE(InfoExtractor):
                 'id':       video_id,
                 'url':      mediaURL,
                 'uploader': track['user']['username'],
-                'upload_date':  track['created_at'],
+                'upload_date':  unified_strdate(track['created_at']),
                 'title':    track['title'],
                 'ext':      u'mp3',
                 'description': track['description'],
@@ -2898,39 +2657,28 @@ class InfoQIE(InfoExtractor):
     """Information extractor for infoq.com"""
     _VALID_URL = r'^(?:https?://)?(?:www\.)?infoq\.com/[^/]+/[^/]+$'
 
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         webpage = self._download_webpage(url, video_id=url)
         self.report_extraction(url)
 
         # Extract video URL
-        mobj = re.search(r"jsclassref='([^']*)'", webpage)
+        mobj = re.search(r"jsclassref ?= ?'([^']*)'", webpage)
         if mobj is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
+            raise ExtractorError(u'Unable to extract video url')
         real_id = compat_urllib_parse.unquote(base64.b64decode(mobj.group(1).encode('ascii')).decode('utf-8'))
         video_url = 'rtmpe://video.infoq.com/cfx/st/' + real_id
 
         # Extract title
-        mobj = re.search(r'contentTitle = "(.*?)";', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
-        video_title = mobj.group(1)
+        video_title = self._search_regex(r'contentTitle = "(.*?)";',
+            webpage, u'title')
 
         # Extract description
-        video_description = u'No description available.'
-        mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', webpage)
-        if mobj is not None:
-            video_description = mobj.group(1)
+        video_description = self._html_search_regex(r'<meta name="description" content="(.*)"(?:\s*/)?>',
+            webpage, u'description', fatal=False)
 
         video_filename = video_url.split('/')[-1]
         video_id, extension = video_filename.split('.')
@@ -2955,16 +2703,9 @@ class MixcloudIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?(?:www\.)?mixcloud\.com/([\w\d-]+)/([\w\d-]+)'
     IE_NAME = u'mixcloud'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
     def report_download_json(self, file_id):
         """Report JSON download."""
-        self._downloader.to_screen(u'[%s] Downloading json' % self.IE_NAME)
-
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
+        self.to_screen(u'Downloading json')
 
     def get_urls(self, jsonData, fmt, bitrate='best'):
         """Get urls from 'audio_formats' section in json"""
@@ -3005,8 +2746,7 @@ class MixcloudIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         # extract uploader & filename from url
         uploader = mobj.group(1).decode('utf-8')
         file_id = uploader + "-" + mobj.group(2).decode('utf-8')
@@ -3019,8 +2759,7 @@ class MixcloudIE(InfoExtractor):
             self.report_download_json(file_url)
             jsonData = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve file: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to retrieve file: %s' % compat_str(err))
 
         # parse JSON
         json_data = json.loads(jsonData)
@@ -3043,8 +2782,7 @@ class MixcloudIE(InfoExtractor):
                     break # got it!
         else:
             if req_format not in formats:
-                self._downloader.report_error(u'format is not available')
-                return
+                raise ExtractorError(u'Format is not available')
 
             url_list = self.get_urls(formats, req_format)
             file_url = self.check_urls(url_list)
@@ -3069,14 +2807,6 @@ class StanfordOpenClassroomIE(InfoExtractor):
     _VALID_URL = r'^(?:https?://)?openclassroom.stanford.edu(?P<path>/?|(/MainFolder/(?:HomePage|CoursePage|VideoPage)\.php([?]course=(?P<course>[^&]+)(&video=(?P<video>[^&]+))?(&.*)?)?))$'
     IE_NAME = u'stanfordoc'
 
-    def report_download_webpage(self, objid):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, objid))
-
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
@@ -3097,15 +2827,13 @@ class StanfordOpenClassroomIE(InfoExtractor):
             try:
                 metaXml = compat_urllib_request.urlopen(xmlUrl).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download video info XML: %s' % compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download video info XML: %s' % compat_str(err))
             mdoc = xml.etree.ElementTree.fromstring(metaXml)
             try:
                 info['title'] = mdoc.findall('./title')[0].text
                 info['url'] = baseUrl + mdoc.findall('./videoFile')[0].text
             except IndexError:
-                self._downloader.report_error(u'Invalid metadata XML file')
-                return
+                raise ExtractorError(u'Invalid metadata XML file')
             info['ext'] = info['url'].rpartition('.')[2]
             return [info]
         elif mobj.group('course'): # A course page
@@ -3121,15 +2849,10 @@ class StanfordOpenClassroomIE(InfoExtractor):
                                         note='Downloading course info page',
                                         errnote='Unable to download course info page')
 
-            m = re.search('<h1>([^<]+)</h1>', coursepage)
-            if m:
-                info['title'] = unescapeHTML(m.group(1))
-            else:
-                info['title'] = info['id']
+            info['title'] = self._html_search_regex('<h1>([^<]+)</h1>', coursepage, 'title', default=info['id'])
 
-            m = re.search('<description>([^<]+)</description>', coursepage)
-            if m:
-                info['description'] = unescapeHTML(m.group(1))
+            info['description'] = self._html_search_regex('<description>([^<]+)</description>',
+                coursepage, u'description', fatal=False)
 
             links = orderedSet(re.findall('<a href="(VideoPage.php\?[^"]+)">', coursepage))
             info['list'] = [
@@ -3156,8 +2879,7 @@ class StanfordOpenClassroomIE(InfoExtractor):
             try:
                 rootpage = compat_urllib_request.urlopen(rootURL).read()
             except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-                self._downloader.report_error(u'unable to download course info page: ' + compat_str(err))
-                return
+                raise ExtractorError(u'Unable to download course info page: ' + compat_str(err))
 
             info['title'] = info['id']
 
@@ -3181,44 +2903,27 @@ class MTVIE(InfoExtractor):
     _VALID_URL = r'^(?P<proto>https?://)?(?:www\.)?mtv\.com/videos/[^/]+/(?P<videoid>[0-9]+)/[^/]+$'
     IE_NAME = u'mtv'
 
-    def report_extraction(self, video_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         if not mobj.group('proto'):
             url = 'http://' + url
         video_id = mobj.group('videoid')
 
         webpage = self._download_webpage(url, video_id)
 
-        mobj = re.search(r'<meta name="mtv_vt" content="([^"]+)"/>', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract song name')
-            return
-        song_name = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
-        mobj = re.search(r'<meta name="mtv_an" content="([^"]+)"/>', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract performer')
-            return
-        performer = unescapeHTML(mobj.group(1).decode('iso-8859-1'))
-        video_title = performer + ' - ' + song_name
+        song_name = self._html_search_regex(r'<meta name="mtv_vt" content="([^"]+)"/>',
+            webpage, u'song name', fatal=False)
 
-        mobj = re.search(r'<meta name="mtvn_uri" content="([^"]+)"/>', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to mtvn_uri')
-            return
-        mtvn_uri = mobj.group(1)
+        video_title = self._html_search_regex(r'<meta name="mtv_an" content="([^"]+)"/>',
+            webpage, u'title')
 
-        mobj = re.search(r'MTVN.Player.defaultPlaylistId = ([0-9]+);', webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract content id')
-            return
-        content_id = mobj.group(1)
+        mtvn_uri = self._html_search_regex(r'<meta name="mtvn_uri" content="([^"]+)"/>',
+            webpage, u'mtvn_uri', fatal=False)
+
+        content_id = self._search_regex(r'MTVN.Player.defaultPlaylistId = ([0-9]+);',
+            webpage, u'content id', fatal=False)
 
         videogen_url = 'http://www.mtv.com/player/includes/mediaGen.jhtml?uri=' + mtvn_uri + '&id=' + content_id + '&vid=' + video_id + '&ref=www.mtvn.com&viewUri=' + mtvn_uri
         self.report_extraction(video_id)
@@ -3226,8 +2931,7 @@ class MTVIE(InfoExtractor):
         try:
             metadataXml = compat_urllib_request.urlopen(request).read()
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video metadata: %s' % compat_str(err))
-            return
+            raise ExtractorError(u'Unable to download video metadata: %s' % compat_str(err))
 
         mdoc = xml.etree.ElementTree.fromstring(metadataXml)
         renditions = mdoc.findall('.//rendition')
@@ -3240,8 +2944,7 @@ class MTVIE(InfoExtractor):
             format = ext + '-' + rendition.attrib['width'] + 'x' + rendition.attrib['height'] + '_' + rendition.attrib['bitrate']
             video_url = rendition.find('./src').text
         except KeyError:
-            self._downloader.trouble('Invalid rendition field.')
-            return
+            raise ExtractorError('Invalid rendition field.')
 
         info = {
             'id': video_id,
@@ -3259,14 +2962,6 @@ class MTVIE(InfoExtractor):
 class YoukuIE(InfoExtractor):
     _VALID_URL =  r'(?:http://)?v\.youku\.com/v_show/id_(?P<ID>[A-Za-z0-9]+)\.html'
 
-    def report_download_webpage(self, file_id):
-        """Report webpage download."""
-        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, file_id))
-
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
     def _gen_sid(self):
         nowTime = int(time.time() * 1000)
         random1 = random.randint(1000,1998)
@@ -3298,24 +2993,16 @@ class YoukuIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group('ID')
 
         info_url = 'http://v.youku.com/player/getPlayList/VideoIDS/' + video_id
 
-        request = compat_urllib_request.Request(info_url, None, std_headers)
-        try:
-            self.report_download_webpage(video_id)
-            jsondata = compat_urllib_request.urlopen(request).read()
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
+        jsondata = self._download_webpage(info_url, video_id)
 
         self.report_extraction(video_id)
         try:
-            jsonstr = jsondata.decode('utf-8')
-            config = json.loads(jsonstr)
+            config = json.loads(jsondata)
 
             video_title =  config['data'][0]['title']
             seed = config['data'][0]['seed']
@@ -3340,8 +3027,7 @@ class YoukuIE(InfoExtractor):
             fileid = config['data'][0]['streamfileids'][format]
             keys = [s['k'] for s in config['data'][0]['segs'][format]]
         except (UnicodeDecodeError, ValueError, KeyError):
-            self._downloader.report_error(u'unable to extract info section')
-            return
+            raise ExtractorError(u'Unable to extract info section')
 
         files_info=[]
         sid = self._gen_sid()
@@ -3376,48 +3062,24 @@ class XNXXIE(InfoExtractor):
     VIDEO_TITLE_RE = r'<title>(.*?)\s+-\s+XNXX.COM'
     VIDEO_THUMB_RE = r'url_bigthumb=(.*?)&amp;'
 
-    def report_webpage(self, video_id):
-        """Report information extraction"""
-        self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
-
-    def report_extraction(self, video_id):
-        """Report information extraction"""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group(1)
 
-        self.report_webpage(video_id)
-
         # Get webpage content
-        try:
-            webpage_bytes = compat_urllib_request.urlopen(url).read()
-            webpage = webpage_bytes.decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video webpage: %s' % err)
-            return
+        webpage = self._download_webpage(url, video_id)
 
-        result = re.search(self.VIDEO_URL_RE, webpage)
-        if result is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
-        video_url = compat_urllib_parse.unquote(result.group(1))
+        video_url = self._search_regex(self.VIDEO_URL_RE,
+            webpage, u'video URL')
+        video_url = compat_urllib_parse.unquote(video_url)
 
-        result = re.search(self.VIDEO_TITLE_RE, webpage)
-        if result is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
-        video_title = result.group(1)
+        video_title = self._html_search_regex(self.VIDEO_TITLE_RE,
+            webpage, u'title')
 
-        result = re.search(self.VIDEO_THUMB_RE, webpage)
-        if result is None:
-            self._downloader.report_error(u'unable to extract video thumbnail')
-            return
-        video_thumbnail = result.group(1)
+        video_thumbnail = self._search_regex(self.VIDEO_THUMB_RE,
+            webpage, u'thumbnail', fatal=False)
 
         return [{
             'id': video_id,
@@ -3437,35 +3099,11 @@ class GooglePlusIE(InfoExtractor):
     _VALID_URL = r'(?:https://)?plus\.google\.com/(?:[^/]+/)*?posts/(\w+)'
     IE_NAME = u'plus.google'
 
-    def __init__(self, downloader=None):
-        InfoExtractor.__init__(self, downloader)
-
-    def report_extract_entry(self, url):
-        """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Downloading entry: %s' % url)
-
-    def report_date(self, upload_date):
-        """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Entry date: %s' % upload_date)
-
-    def report_uploader(self, uploader):
-        """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Uploader: %s' % uploader)
-
-    def report_title(self, video_title):
-        """Report downloading extry"""
-        self._downloader.to_screen(u'[plus.google] Title: %s' % video_title)
-
-    def report_extract_vid_page(self, video_page):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[plus.google] Extracting video page: %s' % video_page)
-
     def _real_extract(self, url):
         # Extract id from URL
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'Invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         post_url = mobj.group(0)
         video_id = mobj.group(1)
@@ -3473,64 +3111,38 @@ class GooglePlusIE(InfoExtractor):
         video_extension = 'flv'
 
         # Step 1, Retrieve post webpage to extract further information
-        self.report_extract_entry(post_url)
-        request = compat_urllib_request.Request(post_url)
-        try:
-            webpage = compat_urllib_request.urlopen(request).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve entry webpage: %s' % compat_str(err))
-            return
+        webpage = self._download_webpage(post_url, video_id, u'Downloading entry webpage')
+
+        self.report_extraction(video_id)
 
         # Extract update date
-        upload_date = None
-        pattern = 'title="Timestamp">(.*?)</a>'
-        mobj = re.search(pattern, webpage)
-        if mobj:
-            upload_date = mobj.group(1)
+        upload_date = self._html_search_regex('title="Timestamp">(.*?)</a>',
+            webpage, u'upload date', fatal=False)
+        if upload_date:
             # Convert timestring to a format suitable for filename
             upload_date = datetime.datetime.strptime(upload_date, "%Y-%m-%d")
             upload_date = upload_date.strftime('%Y%m%d')
-        self.report_date(upload_date)
 
         # Extract uploader
-        uploader = None
-        pattern = r'rel\="author".*?>(.*?)</a>'
-        mobj = re.search(pattern, webpage)
-        if mobj:
-            uploader = mobj.group(1)
-        self.report_uploader(uploader)
+        uploader = self._html_search_regex(r'rel\="author".*?>(.*?)</a>',
+            webpage, u'uploader', fatal=False)
 
         # Extract title
         # Get the first line for title
-        video_title = u'NA'
-        pattern = r'<meta name\=\"Description\" content\=\"(.*?)[\n<"]'
-        mobj = re.search(pattern, webpage)
-        if mobj:
-            video_title = mobj.group(1)
-        self.report_title(video_title)
+        video_title = self._html_search_regex(r'<meta name\=\"Description\" content\=\"(.*?)[\n<"]',
+            webpage, 'title', default=u'NA')
 
         # Step 2, Stimulate clicking the image box to launch video
-        pattern = '"(https\://plus\.google\.com/photos/.*?)",,"image/jpeg","video"\]'
-        mobj = re.search(pattern, webpage)
-        if mobj is None:
-            self._downloader.report_error(u'unable to extract video page URL')
-
-        video_page = mobj.group(1)
-        request = compat_urllib_request.Request(video_page)
-        try:
-            webpage = compat_urllib_request.urlopen(request).read().decode('utf-8')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'Unable to retrieve video webpage: %s' % compat_str(err))
-            return
-        self.report_extract_vid_page(video_page)
-
+        video_page = self._search_regex('"(https\://plus\.google\.com/photos/.*?)",,"image/jpeg","video"\]',
+            webpage, u'video page URL')
+        webpage = self._download_webpage(video_page, video_id, u'Downloading video page')
 
         # Extract video links on video page
         """Extract video links of all sizes"""
         pattern = '\d+,\d+,(\d+),"(http\://redirector\.googlevideo\.com.*?)"'
         mobj = re.findall(pattern, webpage)
         if len(mobj) == 0:
-            self._downloader.report_error(u'unable to extract video links')
+            raise ExtractorError(u'Unable to extract video links')
 
         # Sort in resolution
         links = sorted(mobj)
@@ -3556,38 +3168,36 @@ class GooglePlusIE(InfoExtractor):
         }]
 
 class NBAIE(InfoExtractor):
-    _VALID_URL = r'^(?:https?://)?(?:watch\.|www\.)?nba\.com/(?:nba/)?video(/[^?]*)(\?.*)?$'
+    _VALID_URL = r'^(?:https?://)?(?:watch\.|www\.)?nba\.com/(?:nba/)?video(/[^?]*?)(?:/index\.html)?(?:\?.*)?$'
     IE_NAME = u'nba'
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group(1)
-        if video_id.endswith('/index.html'):
-            video_id = video_id[:-len('/index.html')]
 
         webpage = self._download_webpage(url, video_id)
 
         video_url = u'http://ht-mobile.cdn.turner.com/nba/big' + video_id + '_nba_1280x720.mp4'
-        def _findProp(rexp, default=None):
-            m = re.search(rexp, webpage)
-            if m:
-                return unescapeHTML(m.group(1))
-            else:
-                return default
 
         shortened_video_id = video_id.rpartition('/')[2]
-        title = _findProp(r'<meta property="og:title" content="(.*?)"', shortened_video_id).replace('NBA.com: ', '')
+        title = self._html_search_regex(r'<meta property="og:title" content="(.*?)"',
+            webpage, 'title', default=shortened_video_id).replace('NBA.com: ', '')
+
+        # It isn't there in the HTML it returns to us
+        # uploader_date = self._html_search_regex(r'<b>Date:</b> (.*?)</div>', webpage, 'upload_date', fatal=False)
+
+        description = self._html_search_regex(r'<meta name="description" (?:content|value)="(.*?)" />', webpage, 'description', fatal=False)
+
         info = {
             'id': shortened_video_id,
             'url': video_url,
             'ext': 'mp4',
             'title': title,
-            'uploader_date': _findProp(r'<b>Date:</b> (.*?)</div>'),
-            'description': _findProp(r'<div class="description">(.*?)</h1>'),
+            # 'uploader_date': uploader_date,
+            'description': description,
         }
         return [info]
 
@@ -3598,34 +3208,31 @@ class JustinTVIE(InfoExtractor):
     # starts at 1 and increases. Can we treat all parts as one video?
 
     _VALID_URL = r"""(?x)^(?:http://)?(?:www\.)?(?:twitch|justin)\.tv/
-        ([^/]+)(?:/b/([^/]+))?/?(?:\#.*)?$"""
+        (?:
+            (?P<channelid>[^/]+)|
+            (?:(?:[^/]+)/b/(?P<videoid>[^/]+))|
+            (?:(?:[^/]+)/c/(?P<chapterid>[^/]+))
+        )
+        /?(?:\#.*)?$
+        """
     _JUSTIN_PAGE_LIMIT = 100
     IE_NAME = u'justin.tv'
 
-    def report_extraction(self, file_id):
-        """Report information extraction."""
-        self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
     def report_download_page(self, channel, offset):
         """Report attempt to download a single page of videos."""
-        self._downloader.to_screen(u'[%s] %s: Downloading video information from %d to %d' %
-                (self.IE_NAME, channel, offset, offset + self._JUSTIN_PAGE_LIMIT))
+        self.to_screen(u'%s: Downloading video information from %d to %d' %
+                (channel, offset, offset + self._JUSTIN_PAGE_LIMIT))
 
     # Return count of items, list of *valid* items
-    def _parse_page(self, url):
-        try:
-            urlh = compat_urllib_request.urlopen(url)
-            webpage_bytes = urlh.read()
-            webpage = webpage_bytes.decode('utf-8', 'ignore')
-        except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
-            self._downloader.report_error(u'unable to download video info JSON: %s' % compat_str(err))
-            return
+    def _parse_page(self, url, video_id):
+        webpage = self._download_webpage(url, video_id,
+                                         u'Downloading video info JSON',
+                                         u'unable to download video info JSON')
 
         response = json.loads(webpage)
         if type(response) != list:
             error_text = response.get('error', 'unknown error')
-            self._downloader.report_error(u'Justin.tv API: %s' % error_text)
-            return
+            raise ExtractorError(u'Justin.tv API: %s' % error_text)
         info = []
         for clip in response:
             video_url = clip['video_file_url']
@@ -3649,18 +3256,67 @@ class JustinTVIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'invalid URL: %s' % url)
 
-        api = 'http://api.justin.tv'
-        video_id = mobj.group(mobj.lastindex)
+        api_base = 'http://api.justin.tv'
         paged = False
-        if mobj.lastindex == 1:
+        if mobj.group('channelid'):
             paged = True
-            api += '/channel/archives/%s.json'
+            video_id = mobj.group('channelid')
+            api = api_base + '/channel/archives/%s.json' % video_id
+        elif mobj.group('chapterid'):
+            chapter_id = mobj.group('chapterid')
+
+            webpage = self._download_webpage(url, chapter_id)
+            m = re.search(r'PP\.archive_id = "([0-9]+)";', webpage)
+            if not m:
+                raise ExtractorError(u'Cannot find archive of a chapter')
+            archive_id = m.group(1)
+
+            api = api_base + '/broadcast/by_chapter/%s.xml' % chapter_id
+            chapter_info_xml = self._download_webpage(api, chapter_id,
+                                             note=u'Downloading chapter information',
+                                             errnote=u'Chapter information download failed')
+            doc = xml.etree.ElementTree.fromstring(chapter_info_xml)
+            for a in doc.findall('.//archive'):
+                if archive_id == a.find('./id').text:
+                    break
+            else:
+                raise ExtractorError(u'Could not find chapter in chapter information')
+
+            video_url = a.find('./video_file_url').text
+            video_ext = video_url.rpartition('.')[2] or u'flv'
+
+            chapter_api_url = u'https://api.twitch.tv/kraken/videos/c' + chapter_id
+            chapter_info_json = self._download_webpage(chapter_api_url, u'c' + chapter_id,
+                                   note='Downloading chapter metadata',
+                                   errnote='Download of chapter metadata failed')
+            chapter_info = json.loads(chapter_info_json)
+
+            bracket_start = int(doc.find('.//bracket_start').text)
+            bracket_end = int(doc.find('.//bracket_end').text)
+
+            # TODO determine start (and probably fix up file)
+            #  youtube-dl -v http://www.twitch.tv/firmbelief/c/1757457
+            #video_url += u'?start=' + TODO:start_timestamp
+            # bracket_start is 13290, but we want 51670615
+            self._downloader.report_warning(u'Chapter detected, but we can just download the whole file. '
+                                            u'Chapter starts at %s and ends at %s' % (formatSeconds(bracket_start), formatSeconds(bracket_end)))
+
+            info = {
+                'id': u'c' + chapter_id,
+                'url': video_url,
+                'ext': video_ext,
+                'title': chapter_info['title'],
+                'thumbnail': chapter_info['preview'],
+                'description': chapter_info['description'],
+                'uploader': chapter_info['channel']['display_name'],
+                'uploader_id': chapter_info['channel']['name'],
+            }
+            return [info]
         else:
-            api += '/broadcast/by_archive/%s.json'
-        api = api % (video_id,)
+            video_id = mobj.group('videoid')
+            api = api_base + '/broadcast/by_archive/%s.json' % video_id
 
         self.report_extraction(video_id)
 
@@ -3671,7 +3327,7 @@ class JustinTVIE(InfoExtractor):
             if paged:
                 self.report_download_page(video_id, offset)
             page_url = api + ('?offset=%d&limit=%d' % (offset, limit))
-            page_count, page_info = self._parse_page(page_url)
+            page_count, page_info = self._parse_page(page_url, video_id)
             info.extend(page_info)
             if not paged or page_count != limit:
                 break
@@ -3684,43 +3340,38 @@ class FunnyOrDieIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'invalid URL: %s' % url)
 
         video_id = mobj.group('id')
         webpage = self._download_webpage(url, video_id)
 
-        m = re.search(r'<video[^>]*>\s*<source[^>]*>\s*<source src="(?P<url>[^"]+)"', webpage, re.DOTALL)
-        if not m:
-            self._downloader.report_error(u'unable to find video information')
-        video_url = unescapeHTML(m.group('url'))
+        video_url = self._html_search_regex(r'<video[^>]*>\s*<source[^>]*>\s*<source src="(?P<url>[^"]+)"',
+            webpage, u'video URL', flags=re.DOTALL)
 
-        m = re.search(r"<h1 class='player_page_h1'.*?>(?P<title>.*?)</h1>", webpage, flags=re.DOTALL)
-        if not m:
-            self._downloader.trouble(u'Cannot find video title')
-        title = clean_html(m.group('title'))
+        title = self._html_search_regex((r"<h1 class='player_page_h1'.*?>(?P<title>.*?)</h1>",
+            r'<title>(?P<title>[^<]+?)</title>'), webpage, 'title', flags=re.DOTALL)
 
-        m = re.search(r'<meta property="og:description" content="(?P<desc>.*?)"', webpage)
-        if m:
-            desc = unescapeHTML(m.group('desc'))
-        else:
-            desc = None
+        video_description = self._html_search_regex(r'<meta property="og:description" content="(?P<desc>.*?)"',
+            webpage, u'description', fatal=False, flags=re.DOTALL)
 
         info = {
             'id': video_id,
             'url': video_url,
             'ext': 'mp4',
             'title': title,
-            'description': desc,
+            'description': video_description,
         }
         return [info]
 
 class SteamIE(InfoExtractor):
-    _VALID_URL = r"""http://store.steampowered.com/
+    _VALID_URL = r"""http://store\.steampowered\.com/
+                (agecheck/)?
                 (?P<urltype>video|app)/ #If the page is only for videos or for a game
                 (?P<gameID>\d+)/?
                 (?P<videoID>\d*)(?P<extra>\??) #For urltype == video we sometimes get the videoID
                 """
+    _VIDEO_PAGE_TEMPLATE = 'http://store.steampowered.com/video/%s/'
+    _AGECHECK_TEMPLATE = 'http://store.steampowered.com/agecheck/video/%s/?snr=1_agecheck_agecheck__age-gate&ageDay=1&ageMonth=January&ageYear=1970'
 
     @classmethod
     def suitable(cls, url):
@@ -3729,10 +3380,21 @@ class SteamIE(InfoExtractor):
 
     def _real_extract(self, url):
         m = re.match(self._VALID_URL, url, re.VERBOSE)
-        urlRE = r"'movie_(?P<videoID>\d+)': \{\s*FILENAME: \"(?P<videoURL>[\w:/\.\?=]+)\"(,\s*MOVIE_NAME: \"(?P<videoName>[\w:/\.\?=\+-]+)\")?\s*\},"
         gameID = m.group('gameID')
-        videourl = 'http://store.steampowered.com/video/%s/' % gameID
+
+        videourl = self._VIDEO_PAGE_TEMPLATE % gameID
         webpage = self._download_webpage(videourl, gameID)
+
+        if re.search('<h2>Please enter your birth date to continue:</h2>', webpage) is not None:
+            videourl = self._AGECHECK_TEMPLATE % gameID
+            self.report_age_confirmation()
+            webpage = self._download_webpage(videourl, gameID)
+
+        self.report_extraction(gameID)
+        game_title = self._html_search_regex(r'<h2 class="pageheader">(.*?)</h2>',
+                                             webpage, 'game title')
+
+        urlRE = r"'movie_(?P<videoID>\d+)': \{\s*FILENAME: \"(?P<videoURL>[\w:/\.\?=]+)\"(,\s*MOVIE_NAME: \"(?P<videoName>[\w:/\.\?=\+-]+)\")?\s*\},"
         mweb = re.finditer(urlRE, webpage)
         namesRE = r'<span class="title">(?P<videoName>.+?)</span>'
         titles = re.finditer(namesRE, webpage)
@@ -3745,7 +3407,7 @@ class SteamIE(InfoExtractor):
             video_url = vid.group('videoURL')
             video_thumb = thumb.group('thumbnail')
             if not video_url:
-                self._downloader.report_error(u'Cannot find video url for %s' % video_id)
+                raise ExtractorError(u'Cannot find video url for %s' % video_id)
             info = {
                 'id':video_id,
                 'url':video_url,
@@ -3754,7 +3416,7 @@ class SteamIE(InfoExtractor):
                 'thumbnail': video_thumb
                   }
             videos.append(info)
-        return videos
+        return [self.playlist_result(videos, gameID, game_title)]
 
 class UstreamIE(InfoExtractor):
     _VALID_URL = r'https?://www\.ustream\.tv/recorded/(?P<videoID>\d+)'
@@ -3763,72 +3425,66 @@ class UstreamIE(InfoExtractor):
     def _real_extract(self, url):
         m = re.match(self._VALID_URL, url)
         video_id = m.group('videoID')
+
         video_url = u'http://tcdn.ustream.tv/video/%s' % video_id
         webpage = self._download_webpage(url, video_id)
-        m = re.search(r'data-title="(?P<title>.+)"',webpage)
-        title = m.group('title')
-        m = re.search(r'<a class="state" data-content-type="channel" data-content-id="(?P<uploader>\d+)"',webpage)
-        uploader = m.group('uploader')
+
+        self.report_extraction(video_id)
+
+        video_title = self._html_search_regex(r'data-title="(?P<title>.+)"',
+            webpage, u'title')
+
+        uploader = self._html_search_regex(r'data-content-type="channel".*?>(?P<uploader>.*?)</a>',
+            webpage, u'uploader', fatal=False, flags=re.DOTALL)
+
+        thumbnail = self._html_search_regex(r'<link rel="image_src" href="(?P<thumb>.*?)"',
+            webpage, u'thumbnail', fatal=False)
+
         info = {
-                'id':video_id,
-                'url':video_url,
+                'id': video_id,
+                'url': video_url,
                 'ext': 'flv',
-                'title': title,
-                'uploader': uploader
-                  }
-        return [info]
+                'title': video_title,
+                'uploader': uploader,
+                'thumbnail': thumbnail,
+               }
+        return info
 
 class WorldStarHipHopIE(InfoExtractor):
-    _VALID_URL = r'http://(?:www|m)\.worldstar(?:candy|hiphop)\.com/videos/video\.php\?v=(?P<id>.*)'
+    _VALID_URL = r'https?://(?:www|m)\.worldstar(?:candy|hiphop)\.com/videos/video\.php\?v=(?P<id>.*)'
     IE_NAME = u'WorldStarHipHop'
 
     def _real_extract(self, url):
-        _src_url = r"""(http://hw-videos.*(?:mp4|flv))"""
-
-        webpage_src = compat_urllib_request.urlopen(url).read()
-        webpage_src = webpage_src.decode('utf-8')
-
-        mobj = re.search(_src_url, webpage_src)
-
         m = re.match(self._VALID_URL, url)
         video_id = m.group('id')
 
-        if mobj is not None:
-            video_url = mobj.group()
-            if 'mp4' in video_url:
-                ext = 'mp4'
-            else:
-                ext = 'flv'
-        else:
-            self._downloader.trouble(u'ERROR: Cannot find video url for %s' % video_id)
-            return
-
-        _title = r"""<title>(.*)</title>"""
+        webpage_src = self._download_webpage(url, video_id)
 
-        mobj = re.search(_title, webpage_src)
+        video_url = self._search_regex(r'so\.addVariable\("file","(.*?)"\)',
+            webpage_src, u'video URL')
 
-        if mobj is not None:
-            title = mobj.group(1)
+        if 'mp4' in video_url:
+            ext = 'mp4'
         else:
-            title = 'World Start Hip Hop - %s' % time.ctime()
+            ext = 'flv'
 
-        _thumbnail = r"""rel="image_src" href="(.*)" />"""
-        mobj = re.search(_thumbnail, webpage_src)
+        video_title = self._html_search_regex(r"<title>(.*)</title>",
+            webpage_src, u'title')
 
         # Getting thumbnail and if not thumbnail sets correct title for WSHH candy video.
-        if mobj is not None:
-            thumbnail = mobj.group(1)
-        else:
+        thumbnail = self._html_search_regex(r'rel="image_src" href="(.*)" />',
+            webpage_src, u'thumbnail', fatal=False)
+
+        if not thumbnail:
             _title = r"""candytitles.*>(.*)</span>"""
             mobj = re.search(_title, webpage_src)
             if mobj is not None:
-                title = mobj.group(1)
-            thumbnail = None
+                video_title = mobj.group(1)
 
         results = [{
                     'id': video_id,
                     'url' : video_url,
-                    'title' : title,
+                    'title' : video_title,
                     'thumbnail' : thumbnail,
                     'ext' : ext,
                     }]
@@ -3842,10 +3498,9 @@ class RBMARadioIE(InfoExtractor):
         video_id = m.group('videoID')
 
         webpage = self._download_webpage(url, video_id)
-        m = re.search(r'<script>window.gon = {.*?};gon\.show=(.+?);</script>', webpage)
-        if not m:
-            raise ExtractorError(u'Cannot find metadata')
-        json_data = m.group(1)
+
+        json_data = self._search_regex(r'window\.gon.*?gon\.show=(.+?);$',
+            webpage, u'json data', flags=re.MULTILINE)
 
         try:
             data = json.loads(json_data)
@@ -3891,44 +3546,34 @@ class YouPornIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
-
+            raise ExtractorError(u'Invalid URL: %s' % url)
         video_id = mobj.group('videoid')
 
         req = compat_urllib_request.Request(url)
         req.add_header('Cookie', 'age_verified=1')
         webpage = self._download_webpage(req, video_id)
 
-        # Get the video title
-        result = re.search(r'<h1.*?>(?P<title>.*)</h1>', webpage)
-        if result is None:
-            raise ExtractorError(u'Unable to extract video title')
-        video_title = result.group('title').strip()
-
-        # Get the video date
-        result = re.search(r'Date:</label>(?P<date>.*) </li>', webpage)
-        if result is None:
-            self._downloader.report_warning(u'unable to extract video date')
-            upload_date = None
-        else:
-            upload_date = result.group('date').strip()
+        # Get JSON parameters
+        json_params = self._search_regex(r'var currentVideo = new Video\((.*)\);', webpage, u'JSON parameters')
+        try:
+            params = json.loads(json_params)
+        except:
+            raise ExtractorError(u'Invalid JSON')
 
-        # Get the video uploader
-        result = re.search(r'Submitted:</label>(?P<uploader>.*)</li>', webpage)
-        if result is None:
-            self._downloader.report_warning(u'unable to extract uploader')
-            video_uploader = None
-        else:
-            video_uploader = result.group('uploader').strip()
-            video_uploader = clean_html( video_uploader )
+        self.report_extraction(video_id)
+        try:
+            video_title = params['title']
+            upload_date = unified_strdate(params['release_date_f'])
+            video_description = params['description']
+            video_uploader = params['submitted_by']
+            thumbnail = params['thumbnails'][0]['image']
+        except KeyError:
+            raise ExtractorError('Missing JSON parameter: ' + sys.exc_info()[1])
 
         # Get all of the formats available
         DOWNLOAD_LIST_RE = r'(?s)<ul class="downloadList">(?P<download_list>.*?)</ul>'
-        result = re.search(DOWNLOAD_LIST_RE, webpage)
-        if result is None:
-            raise ExtractorError(u'Unable to extract download list')
-        download_list_html = result.group('download_list').strip()
+        download_list_html = self._search_regex(DOWNLOAD_LIST_RE,
+            webpage, u'download list').strip()
 
         # Get all of the links from the page
         LINK_RE = r'(?s)<a href="(?P<url>[^"]+)">'
@@ -3936,7 +3581,7 @@ class YouPornIE(InfoExtractor):
         if(len(links) == 0):
             raise ExtractorError(u'ERROR: no known formats available for video')
 
-        self._downloader.to_screen(u'[youporn] Links found: %d' % len(links))
+        self.to_screen(u'Links found: %d' % len(links))
 
         formats = []
         for link in links:
@@ -3952,19 +3597,18 @@ class YouPornIE(InfoExtractor):
             size = format[0]
             bitrate = format[1]
             format = "-".join( format )
-            title = u'%s-%s-%s' % (video_title, size, bitrate)
+            # title = u'%s-%s-%s' % (video_title, size, bitrate)
 
             formats.append({
                 'id': video_id,
                 'url': video_url,
                 'uploader': video_uploader,
                 'upload_date': upload_date,
-                'title': title,
+                'title': video_title,
                 'ext': extension,
                 'format': format,
-                'thumbnail': None,
-                'description': None,
-                'player_url': None
+                'thumbnail': thumbnail,
+                'description': video_description
             })
 
         if self._downloader.params.get('listformats', None):
@@ -3972,7 +3616,7 @@ class YouPornIE(InfoExtractor):
             return
 
         req_format = self._downloader.params.get('format', None)
-        self._downloader.to_screen(u'[youporn] Format: %s' % req_format)
+        self.to_screen(u'Format: %s' % req_format)
 
         if req_format is None or req_format == 'best':
             return [formats[0]]
@@ -3983,8 +3627,7 @@ class YouPornIE(InfoExtractor):
         else:
             format = self._specific( req_format, formats )
             if result is None:
-                self._downloader.report_error(u'requested format not available')
-                return
+                raise ExtractorError(u'Requested format not available')
             return [format]
 
 
@@ -3996,8 +3639,7 @@ class PornotubeIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('videoid')
         video_title = mobj.group('title')
@@ -4007,19 +3649,13 @@ class PornotubeIE(InfoExtractor):
 
         # Get the video URL
         VIDEO_URL_RE = r'url: "(?P<url>http://video[0-9].pornotube.com/.+\.flv)",'
-        result = re.search(VIDEO_URL_RE, webpage)
-        if result is None:
-            self._downloader.report_error(u'unable to extract video url')
-            return
-        video_url = compat_urllib_parse.unquote(result.group('url'))
+        video_url = self._search_regex(VIDEO_URL_RE, webpage, u'video url')
+        video_url = compat_urllib_parse.unquote(video_url)
 
         #Get the uploaded date
         VIDEO_UPLOADED_RE = r'<div class="video_added_by">Added (?P<date>[0-9\/]+) by'
-        result = re.search(VIDEO_UPLOADED_RE, webpage)
-        if result is None:
-            self._downloader.report_error(u'unable to extract video title')
-            return
-        upload_date = result.group('date')
+        upload_date = self._html_search_regex(VIDEO_UPLOADED_RE, webpage, u'upload date', fatal=False)
+        if upload_date: upload_date = unified_strdate(upload_date)
 
         info = {'id': video_id,
                 'url': video_url,
@@ -4038,8 +3674,7 @@ class YouJizzIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.report_error(u'invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('videoid')
 
@@ -4047,10 +3682,8 @@ class YouJizzIE(InfoExtractor):
         webpage = self._download_webpage(url, video_id)
 
         # Get the video title
-        result = re.search(r'<title>(?P<title>.*)</title>', webpage)
-        if result is None:
-            raise ExtractorError(u'ERROR: unable to extract video title')
-        video_title = result.group('title').strip()
+        video_title = self._html_search_regex(r'<title>(?P<title>.*)</title>',
+            webpage, u'title').strip()
 
         # Get the embed page
         result = re.search(r'https?://www.youjizz.com/videos/embed/(?P<videoid>[0-9]+)', webpage)
@@ -4063,10 +3696,8 @@ class YouJizzIE(InfoExtractor):
         webpage = self._download_webpage(embed_page_url, video_id)
 
         # Get the video URL
-        result = re.search(r'so.addVariable\("file",encodeURIComponent\("(?P<source>[^"]+)"\)\);', webpage)
-        if result is None:
-            raise ExtractorError(u'ERROR: unable to extract video url')
-        video_url = result.group('source')
+        video_url = self._search_regex(r'so.addVariable\("file",encodeURIComponent\("(?P<source>[^"]+)"\)\);',
+            webpage, u'video URL')
 
         info = {'id': video_id,
                 'url': video_url,
@@ -4089,10 +3720,7 @@ class EightTracksIE(InfoExtractor):
 
         webpage = self._download_webpage(url, playlist_id)
 
-        m = re.search(r"PAGE.mix = (.*?);\n", webpage, flags=re.DOTALL)
-        if not m:
-            raise ExtractorError(u'Cannot find trax information')
-        json_like = m.group(1)
+        json_like = self._search_regex(r"PAGE.mix = (.*?);\n", webpage, u'trax information', flags=re.DOTALL)
         data = json.loads(json_like)
 
         session = str(random.randint(0, 1000000000))
@@ -4128,30 +3756,35 @@ class KeekIE(InfoExtractor):
     def _real_extract(self, url):
         m = re.match(self._VALID_URL, url)
         video_id = m.group('videoID')
+
         video_url = u'http://cdn.keek.com/keek/video/%s' % video_id
         thumbnail = u'http://cdn.keek.com/keek/thumbnail/%s/w100/h75' % video_id
         webpage = self._download_webpage(url, video_id)
-        m = re.search(r'<meta property="og:title" content="(?P<title>.+)"', webpage)
-        title = unescapeHTML(m.group('title'))
-        m = re.search(r'<div class="user-name-and-bio">[\S\s]+?<h2>(?P<uploader>.+?)</h2>', webpage)
-        uploader = clean_html(m.group('uploader'))
+
+        video_title = self._html_search_regex(r'<meta property="og:title" content="(?P<title>.*?)"',
+            webpage, u'title')
+
+        uploader = self._html_search_regex(r'<div class="user-name-and-bio">[\S\s]+?<h2>(?P<uploader>.+?)</h2>',
+            webpage, u'uploader', fatal=False)
+
         info = {
                 'id': video_id,
                 'url': video_url,
                 'ext': 'mp4',
-                'title': title,
+                'title': video_title,
                 'thumbnail': thumbnail,
                 'uploader': uploader
         }
         return [info]
 
 class TEDIE(InfoExtractor):
-    _VALID_URL=r'''http://www.ted.com/
+    _VALID_URL=r'''http://www\.ted\.com/
                    (
                         ((?P<type_playlist>playlists)/(?P<playlist_id>\d+)) # We have a playlist
                         |
                         ((?P<type_talk>talks)) # We have a simple talk
                    )
+                   (/lang/(.*?))? # The url may contain the language
                    /(?P<name>\w+) # Here goes the name and then ".html"
                    '''
 
@@ -4167,12 +3800,8 @@ class TEDIE(InfoExtractor):
         else :
             playlist_id=m.group('playlist_id')
             name=m.group('name')
-            self._downloader.to_screen(u'[%s] Getting info of playlist %s: "%s"' % (self.IE_NAME,playlist_id,name))
-            return self._playlist_videos_info(url,name,playlist_id)
-
-    def _talk_video_link(self,mediaSlug):
-        '''Returns the video link for that mediaSlug'''
-        return 'http://download.ted.com/talks/%s.mp4' % mediaSlug
+            self.to_screen(u'Getting info of playlist %s: "%s"' % (playlist_id,name))
+            return [self._playlist_videos_info(url,name,playlist_id)]
 
     def _playlist_videos_info(self,url,name,playlist_id=0):
         '''Returns the videos of the playlist'''
@@ -4185,36 +3814,41 @@ class TEDIE(InfoExtractor):
         webpage=self._download_webpage(url, playlist_id, 'Downloading playlist webpage')
         m_videos=re.finditer(video_RE,webpage,re.VERBOSE)
         m_names=re.finditer(video_name_RE,webpage)
-        info=[]
+
+        playlist_title = self._html_search_regex(r'div class="headline">\s*?<h1>\s*?<span>(.*?)</span>',
+                                                 webpage, 'playlist title')
+
+        playlist_entries = []
         for m_video, m_name in zip(m_videos,m_names):
             video_id=m_video.group('video_id')
             talk_url='http://www.ted.com%s' % m_name.group('talk_url')
-            info.append(self._talk_info(talk_url,video_id))
-        return info
+            playlist_entries.append(self.url_result(talk_url, 'TED'))
+        return self.playlist_result(playlist_entries, playlist_id = playlist_id, playlist_title = playlist_title)
 
     def _talk_info(self, url, video_id=0):
         """Return the video for the talk in the url"""
-        m=re.match(self._VALID_URL, url,re.VERBOSE)
-        videoName=m.group('name')
-        webpage=self._download_webpage(url, video_id, 'Downloading \"%s\" page' % videoName)
+        m = re.match(self._VALID_URL, url,re.VERBOSE)
+        video_name = m.group('name')
+        webpage = self._download_webpage(url, video_id, 'Downloading \"%s\" page' % video_name)
+        self.report_extraction(video_name)
         # If the url includes the language we get the title translated
-        title_RE=r'<span id="altHeadline" >(?P<title>.*)</span>'
-        title=re.search(title_RE, webpage).group('title')
-        info_RE=r'''<script\ type="text/javascript">var\ talkDetails\ =(.*?)
-                        "id":(?P<videoID>[\d]+).*?
-                        "mediaSlug":"(?P<mediaSlug>[\w\d]+?)"'''
-        thumb_RE=r'</span>[\s.]*</div>[\s.]*<img src="(?P<thumbnail>.*?)"'
-        thumb_match=re.search(thumb_RE,webpage)
-        info_match=re.search(info_RE,webpage,re.VERBOSE)
-        video_id=info_match.group('videoID')
-        mediaSlug=info_match.group('mediaSlug')
-        video_url=self._talk_video_link(mediaSlug)
+        title = self._html_search_regex(r'<span id="altHeadline" >(?P<title>.*)</span>',
+                                        webpage, 'title')
+        json_data = self._search_regex(r'<script.*?>var talkDetails = ({.*?})</script>',
+                                    webpage, 'json data')
+        info = json.loads(json_data)
+        desc = self._html_search_regex(r'<div class="talk-intro">.*?<p.*?>(.*?)</p>',
+                                       webpage, 'description', flags = re.DOTALL)
+        
+        thumbnail = self._search_regex(r'</span>[\s.]*</div>[\s.]*<img src="(.*?)"',
+                                       webpage, 'thumbnail')
         info = {
-                'id': video_id,
-                'url': video_url,
+                'id': info['id'],
+                'url': info['htmlStreams'][-1]['file'],
                 'ext': 'mp4',
                 'title': title,
-                'thumbnail': thumb_match.group('thumbnail')
+                'thumbnail': thumbnail,
+                'description': desc,
                 }
         return info
 
@@ -4239,14 +3873,12 @@ class MySpassIE(InfoExtractor):
         # extract values from metadata
         url_flv_el = metadata.find('url_flv')
         if url_flv_el is None:
-            self._downloader.report_error(u'unable to extract download url')
-            return
+            raise ExtractorError(u'Unable to extract download url')
         video_url = url_flv_el.text
         extension = os.path.splitext(video_url)[1][1:]
         title_el = metadata.find('title')
         if title_el is None:
-            self._downloader.report_error(u'unable to extract title')
-            return
+            raise ExtractorError(u'Unable to extract title')
         title = title_el.text
         format_id_el = metadata.find('format_id')
         if format_id_el is None:
@@ -4282,10 +3914,9 @@ class SpiegelIE(InfoExtractor):
         video_id = m.group('videoID')
 
         webpage = self._download_webpage(url, video_id)
-        m = re.search(r'<div class="spVideoTitle">(.*?)</div>', webpage)
-        if not m:
-            raise ExtractorError(u'Cannot find title')
-        video_title = unescapeHTML(m.group(1))
+
+        video_title = self._html_search_regex(r'<div class="module-title">(.*?)</div>',
+            webpage, u'title')
 
         xml_url = u'http://video2.spiegel.de/flash/' + video_id + u'.xml'
         xml_code = self._download_webpage(xml_url, video_id,
@@ -4315,57 +3946,49 @@ class LiveLeakIE(InfoExtractor):
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)
         if mobj is None:
-            self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-            return
+            raise ExtractorError(u'Invalid URL: %s' % url)
 
         video_id = mobj.group('video_id')
 
         webpage = self._download_webpage(url, video_id)
 
-        m = re.search(r'file: "(.*?)",', webpage)
-        if not m:
-            self._downloader.report_error(u'unable to find video url')
-            return
-        video_url = m.group(1)
+        video_url = self._search_regex(r'file: "(.*?)",',
+            webpage, u'video URL')
 
-        m = re.search(r'<meta property="og:title" content="(?P<title>.*?)"', webpage)
-        if not m:
-            self._downloader.trouble(u'Cannot find video title')
-        title = unescapeHTML(m.group('title')).replace('LiveLeak.com -', '').strip()
+        video_title = self._html_search_regex(r'<meta property="og:title" content="(?P<title>.*?)"',
+            webpage, u'title').replace('LiveLeak.com -', '').strip()
 
-        m = re.search(r'<meta property="og:description" content="(?P<desc>.*?)"', webpage)
-        if m:
-            desc = unescapeHTML(m.group('desc'))
-        else:
-            desc = None
+        video_description = self._html_search_regex(r'<meta property="og:description" content="(?P<desc>.*?)"',
+            webpage, u'description', fatal=False)
 
-        m = re.search(r'By:.*?(\w+)</a>', webpage)
-        if m:
-            uploader = clean_html(m.group(1))
-        else:
-            uploader = None
+        video_uploader = self._html_search_regex(r'By:.*?(\w+)</a>',
+            webpage, u'uploader', fatal=False)
 
         info = {
             'id':  video_id,
             'url': video_url,
             'ext': 'mp4',
-            'title': title,
-            'description': desc,
-            'uploader': uploader
+            'title': video_title,
+            'description': video_description,
+            'uploader': video_uploader
         }
 
         return [info]
 
 class ARDIE(InfoExtractor):
-    IE_NAME = 'ard'
-    _VALID_URL = r'^(?:http?://)?mediathek\.daserste\.de/(?:.*/)(?P<video_id>[^/\?]+)(?:\?.*)?'
-    _TITLE = r'<h1 class="boxTopHeadline">(?P<title>.*)</h1>'
+    _VALID_URL = r'^(?:https?://)?(?:(?:www\.)?ardmediathek\.de|mediathek\.daserste\.de)/(?:.*/)(?P<video_id>[^/\?]+)(?:\?.*)?'
+    _TITLE = r'<h1(?: class="boxTopHeadline")?>(?P<title>.*)</h1>'
     _MEDIA_STREAM = r'mediaCollection\.addMediaStream\((?P<media_type>\d+), (?P<quality>\d+), "(?P<rtmp_url>[^"]*)", "(?P<video_url>[^"]*)", "[^"]*"\)'
 
     def _real_extract(self, url):
         # determine video id from url
         m = re.match(self._VALID_URL, url)
-        video_id = m.group('video_id')
+
+        numid = re.search(r'documentId=([0-9]+)', url)
+        if numid:
+            video_id = numid.group(1)
+        else:
+            video_id = m.group('video_id')
 
         # determine title and media streams from webpage
         html = self._download_webpage(url, video_id)
@@ -4373,17 +3996,16 @@ class ARDIE(InfoExtractor):
         streams = [m.groupdict() for m in re.finditer(self._MEDIA_STREAM, html)]
         if not streams:
             assert '"fsk"' in html
-            self._downloader.report_error(u'this video is only available after 8:00 pm')
-            return
+            raise ExtractorError(u'This video is only available after 8:00 pm')
 
         # choose default media type and highest quality for now
-        stream = max([s for s in streams if int(s["media_type"]) == 0], key=lambda s: int(s["quality"]))
-        #stream = streams[-1]
+        stream = max([s for s in streams if int(s["media_type"]) == 0],
+                     key=lambda s: int(s["quality"]))
 
         # there's two possibilities: RTMP stream or HTTP download
         info = {'id': video_id, 'title': title, 'ext': 'mp4'}
         if stream['rtmp_url']:
-            self._downloader.to_screen(u'[%s] RTMP download detected' % self.IE_NAME)
+            self.to_screen(u'RTMP download detected')
             assert stream['video_url'].startswith('mp4:')
             info["url"] = stream["rtmp_url"]
             info["play_path"] = stream['video_url']
@@ -4392,6 +4014,543 @@ class ARDIE(InfoExtractor):
             info["url"] = stream["video_url"]
         return [info]
 
+class ZDFIE(InfoExtractor):
+    _VALID_URL = r'^http://www\.zdf\.de\/ZDFmediathek\/(.*beitrag\/video\/)(?P<video_id>[^/\?]+)(?:\?.*)?'
+    _TITLE = r'<h1(?: class="beitragHeadline")?>(?P<title>.*)</h1>'
+    _MEDIA_STREAM = r'<a href="(?P<video_url>.+(?P<media_type>.streaming).+/zdf/(?P<quality>[^\/]+)/[^"]*)".+class="play".+>'
+    _MMS_STREAM = r'href="(?P<video_url>mms://[^"]*)"'
+    _RTSP_STREAM = r'(?P<video_url>rtsp://[^"]*.mp4)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        video_id = mobj.group('video_id')
+
+        html = self._download_webpage(url, video_id)
+        streams = [m.groupdict() for m in re.finditer(self._MEDIA_STREAM, html)]
+        if streams is None:
+            raise ExtractorError(u'No media url found.')
+
+        # s['media_type'] == 'wstreaming' -> use 'Windows Media Player' and mms url
+        # s['media_type'] == 'hstreaming' -> use 'Quicktime' and rtsp url
+        # choose first/default media type and highest quality for now
+        for s in streams:        #find 300 - dsl1000mbit
+            if s['quality'] == '300' and s['media_type'] == 'wstreaming':
+                stream_=s
+                break
+        for s in streams:        #find veryhigh - dsl2000mbit
+            if s['quality'] == 'veryhigh' and s['media_type'] == 'wstreaming': # 'hstreaming' - rtsp is not working
+                stream_=s
+                break
+        if stream_ is None:
+            raise ExtractorError(u'No stream found.')
+
+        media_link = self._download_webpage(stream_['video_url'], video_id,'Get stream URL')
+
+        self.report_extraction(video_id)
+        mobj = re.search(self._TITLE, html)
+        if mobj is None:
+            raise ExtractorError(u'Cannot extract title')
+        title = unescapeHTML(mobj.group('title'))
+
+        mobj = re.search(self._MMS_STREAM, media_link)
+        if mobj is None:
+            mobj = re.search(self._RTSP_STREAM, media_link)
+            if mobj is None:
+                raise ExtractorError(u'Cannot extract mms:// or rtsp:// URL')
+        mms_url = mobj.group('video_url')
+
+        mobj = re.search('(.*)[.](?P<ext>[^.]+)', mms_url)
+        if mobj is None:
+            raise ExtractorError(u'Cannot extract extention')
+        ext = mobj.group('ext')
+
+        return [{'id': video_id,
+                 'url': mms_url,
+                 'title': title,
+                 'ext': ext
+                 }]
+
+class TumblrIE(InfoExtractor):
+    _VALID_URL = r'http://(?P<blog_name>.*?)\.tumblr\.com/((post)|(video))/(?P<id>\d*)/(.*?)'
+
+    def _real_extract(self, url):
+        m_url = re.match(self._VALID_URL, url)
+        video_id = m_url.group('id')
+        blog = m_url.group('blog_name')
+
+        url = 'http://%s.tumblr.com/post/%s/' % (blog, video_id)
+        webpage = self._download_webpage(url, video_id)
+
+        re_video = r'src=\\x22(?P<video_url>http://%s\.tumblr\.com/video_file/%s/(.*?))\\x22 type=\\x22video/(?P<ext>.*?)\\x22' % (blog, video_id)
+        video = re.search(re_video, webpage)
+        if video is None:
+           raise ExtractorError(u'Unable to extract video')
+        video_url = video.group('video_url')
+        ext = video.group('ext')
+
+        video_thumbnail = self._search_regex(r'posters(.*?)\[\\x22(?P<thumb>.*?)\\x22',
+            webpage, u'thumbnail', fatal=False)  # We pick the first poster
+        if video_thumbnail: video_thumbnail = video_thumbnail.replace('\\', '')
+
+        # The only place where you can get a title, it's not complete,
+        # but searching in other places doesn't work for all videos
+        video_title = self._html_search_regex(r'<title>(?P<title>.*?)</title>',
+            webpage, u'title', flags=re.DOTALL)
+
+        return [{'id': video_id,
+                 'url': video_url,
+                 'title': video_title,
+                 'thumbnail': video_thumbnail,
+                 'ext': ext
+                 }]
+
+class BandcampIE(InfoExtractor):
+    _VALID_URL = r'http://.*?\.bandcamp\.com/track/(?P<title>.*)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        title = mobj.group('title')
+        webpage = self._download_webpage(url, title)
+        # We get the link to the free download page
+        m_download = re.search(r'freeDownloadPage: "(.*?)"', webpage)
+        if m_download is None:
+            raise ExtractorError(u'No free songs found')
+
+        download_link = m_download.group(1)
+        id = re.search(r'var TralbumData = {(.*?)id: (?P<id>\d*?)$', 
+                       webpage, re.MULTILINE|re.DOTALL).group('id')
+
+        download_webpage = self._download_webpage(download_link, id,
+                                                  'Downloading free downloads page')
+        # We get the dictionary of the track from some javascrip code
+        info = re.search(r'items: (.*?),$',
+                         download_webpage, re.MULTILINE).group(1)
+        info = json.loads(info)[0]
+        # We pick mp3-320 for now, until format selection can be easily implemented.
+        mp3_info = info[u'downloads'][u'mp3-320']
+        # If we try to use this url it says the link has expired
+        initial_url = mp3_info[u'url']
+        re_url = r'(?P<server>http://(.*?)\.bandcamp\.com)/download/track\?enc=mp3-320&fsig=(?P<fsig>.*?)&id=(?P<id>.*?)&ts=(?P<ts>.*)$'
+        m_url = re.match(re_url, initial_url)
+        #We build the url we will use to get the final track url
+        # This url is build in Bandcamp in the script download_bunde_*.js
+        request_url = '%s/statdownload/track?enc=mp3-320&fsig=%s&id=%s&ts=%s&.rand=665028774616&.vrs=1' % (m_url.group('server'), m_url.group('fsig'), id, m_url.group('ts'))
+        final_url_webpage = self._download_webpage(request_url, id, 'Requesting download url')
+        # If we could correctly generate the .rand field the url would be
+        #in the "download_url" key
+        final_url = re.search(r'"retry_url":"(.*?)"', final_url_webpage).group(1)
+
+        track_info = {'id':id,
+                      'title' : info[u'title'],
+                      'ext' :   'mp3',
+                      'url' :   final_url,
+                      'thumbnail' : info[u'thumb_url'],
+                      'uploader' :  info[u'artist']
+                      }
+
+        return [track_info]
+
+class RedTubeIE(InfoExtractor):
+    """Information Extractor for redtube"""
+    _VALID_URL = r'(?:http://)?(?:www\.)?redtube\.com/(?P<id>[0-9]+)'
+
+    def _real_extract(self,url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+
+        video_id = mobj.group('id')
+        video_extension = 'mp4'        
+        webpage = self._download_webpage(url, video_id)
+
+        self.report_extraction(video_id)
+
+        video_url = self._html_search_regex(r'<source src="(.+?)" type="video/mp4">',
+            webpage, u'video URL')
+
+        video_title = self._html_search_regex('<h1 class="videoTitle slidePanelMovable">(.+?)</h1>',
+            webpage, u'title')
+
+        return [{
+            'id':       video_id,
+            'url':      video_url,
+            'ext':      video_extension,
+            'title':    video_title,
+        }]
+        
+class InaIE(InfoExtractor):
+    """Information Extractor for Ina.fr"""
+    _VALID_URL = r'(?:http://)?(?:www\.)?ina\.fr/video/(?P<id>I[0-9]+)/.*'
+
+    def _real_extract(self,url):
+        mobj = re.match(self._VALID_URL, url)
+
+        video_id = mobj.group('id')
+        mrss_url='http://player.ina.fr/notices/%s.mrss' % video_id
+        video_extension = 'mp4'
+        webpage = self._download_webpage(mrss_url, video_id)
+
+        self.report_extraction(video_id)
+
+        video_url = self._html_search_regex(r'<media:player url="(?P<mp4url>http://mp4.ina.fr/[^"]+\.mp4)',
+            webpage, u'video URL')
+
+        video_title = self._search_regex(r'<title><!\[CDATA\[(?P<titre>.*?)]]></title>',
+            webpage, u'title')
+
+        return [{
+            'id':       video_id,
+            'url':      video_url,
+            'ext':      video_extension,
+            'title':    video_title,
+        }]
+
+class HowcastIE(InfoExtractor):
+    """Information Extractor for Howcast.com"""
+    _VALID_URL = r'(?:https?://)?(?:www\.)?howcast\.com/videos/(?P<id>\d+)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+
+        video_id = mobj.group('id')
+        webpage_url = 'http://www.howcast.com/videos/' + video_id
+        webpage = self._download_webpage(webpage_url, video_id)
+
+        self.report_extraction(video_id)
+
+        video_url = self._search_regex(r'\'?file\'?: "(http://mobile-media\.howcast\.com/[0-9]+\.mp4)',
+            webpage, u'video URL')
+
+        video_title = self._html_search_regex(r'<meta content=(?:"([^"]+)"|\'([^\']+)\') property=\'og:title\'',
+            webpage, u'title')
+
+        video_description = self._html_search_regex(r'<meta content=(?:"([^"]+)"|\'([^\']+)\') name=\'description\'',
+            webpage, u'description', fatal=False)
+
+        thumbnail = self._html_search_regex(r'<meta content=\'(.+?)\' property=\'og:image\'',
+            webpage, u'thumbnail', fatal=False)
+
+        return [{
+            'id':       video_id,
+            'url':      video_url,
+            'ext':      'mp4',
+            'title':    video_title,
+            'description': video_description,
+            'thumbnail': thumbnail,
+        }]
+
+class VineIE(InfoExtractor):
+    """Information Extractor for Vine.co"""
+    _VALID_URL = r'(?:https?://)?(?:www\.)?vine\.co/v/(?P<id>\w+)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+
+        video_id = mobj.group('id')
+        webpage_url = 'https://vine.co/v/' + video_id
+        webpage = self._download_webpage(webpage_url, video_id)
+
+        self.report_extraction(video_id)
+
+        video_url = self._html_search_regex(r'<meta property="twitter:player:stream" content="(.+?)"',
+            webpage, u'video URL')
+
+        video_title = self._html_search_regex(r'<meta property="og:title" content="(.+?)"',
+            webpage, u'title')
+
+        thumbnail = self._html_search_regex(r'<meta property="og:image" content="(.+?)(\?.*?)?"',
+            webpage, u'thumbnail', fatal=False)
+
+        uploader = self._html_search_regex(r'<div class="user">.*?<h2>(.+?)</h2>',
+            webpage, u'uploader', fatal=False, flags=re.DOTALL)
+
+        return [{
+            'id':        video_id,
+            'url':       video_url,
+            'ext':       'mp4',
+            'title':     video_title,
+            'thumbnail': thumbnail,
+            'uploader':  uploader,
+        }]
+
+class FlickrIE(InfoExtractor):
+    """Information Extractor for Flickr videos"""
+    _VALID_URL = r'(?:https?://)?(?:www\.)?flickr\.com/photos/(?P<uploader_id>[\w\-_@]+)/(?P<id>\d+).*'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+
+        video_id = mobj.group('id')
+        video_uploader_id = mobj.group('uploader_id')
+        webpage_url = 'http://www.flickr.com/photos/' + video_uploader_id + '/' + video_id
+        webpage = self._download_webpage(webpage_url, video_id)
+
+        secret = self._search_regex(r"photo_secret: '(\w+)'", webpage, u'secret')
+
+        first_url = 'https://secure.flickr.com/apps/video/video_mtl_xml.gne?v=x&photo_id=' + video_id + '&secret=' + secret + '&bitrate=700&target=_self'
+        first_xml = self._download_webpage(first_url, video_id, 'Downloading first data webpage')
+
+        node_id = self._html_search_regex(r'<Item id="id">(\d+-\d+)</Item>',
+            first_xml, u'node_id')
+
+        second_url = 'https://secure.flickr.com/video_playlist.gne?node_id=' + node_id + '&tech=flash&mode=playlist&bitrate=700&secret=' + secret + '&rd=video.yahoo.com&noad=1'
+        second_xml = self._download_webpage(second_url, video_id, 'Downloading second data webpage')
+
+        self.report_extraction(video_id)
+
+        mobj = re.search(r'<STREAM APP="(.+?)" FULLPATH="(.+?)"', second_xml)
+        if mobj is None:
+            raise ExtractorError(u'Unable to extract video url')
+        video_url = mobj.group(1) + unescapeHTML(mobj.group(2))
+
+        video_title = self._html_search_regex(r'<meta property="og:title" content=(?:"([^"]+)"|\'([^\']+)\')',
+            webpage, u'video title')
+
+        video_description = self._html_search_regex(r'<meta property="og:description" content=(?:"([^"]+)"|\'([^\']+)\')',
+            webpage, u'description', fatal=False)
+
+        thumbnail = self._html_search_regex(r'<meta property="og:image" content=(?:"([^"]+)"|\'([^\']+)\')',
+            webpage, u'thumbnail', fatal=False)
+
+        return [{
+            'id':          video_id,
+            'url':         video_url,
+            'ext':         'mp4',
+            'title':       video_title,
+            'description': video_description,
+            'thumbnail':   thumbnail,
+            'uploader_id': video_uploader_id,
+        }]
+
+class TeamcocoIE(InfoExtractor):
+    _VALID_URL = r'http://teamcoco\.com/video/(?P<url_title>.*)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        url_title = mobj.group('url_title')
+        webpage = self._download_webpage(url, url_title)
+
+        video_id = self._html_search_regex(r'<article class="video" data-id="(\d+?)"',
+            webpage, u'video id')
+
+        self.report_extraction(video_id)
+
+        video_title = self._html_search_regex(r'<meta property="og:title" content="(.+?)"',
+            webpage, u'title')
+
+        thumbnail = self._html_search_regex(r'<meta property="og:image" content="(.+?)"',
+            webpage, u'thumbnail', fatal=False)
+
+        video_description = self._html_search_regex(r'<meta property="og:description" content="(.*?)"',
+            webpage, u'description', fatal=False)
+
+        data_url = 'http://teamcoco.com/cvp/2.0/%s.xml' % video_id
+        data = self._download_webpage(data_url, video_id, 'Downloading data webpage')
+
+        video_url = self._html_search_regex(r'<file type="high".*?>(.*?)</file>',
+            data, u'video URL')
+
+        return [{
+            'id':          video_id,
+            'url':         video_url,
+            'ext':         'mp4',
+            'title':       video_title,
+            'thumbnail':   thumbnail,
+            'description': video_description,
+        }]
+
+class XHamsterIE(InfoExtractor):
+    """Information Extractor for xHamster"""
+    _VALID_URL = r'(?:http://)?(?:www.)?xhamster\.com/movies/(?P<id>[0-9]+)/.*\.html'
+
+    def _real_extract(self,url):
+        mobj = re.match(self._VALID_URL, url)
+
+        video_id = mobj.group('id')
+        mrss_url = 'http://xhamster.com/movies/%s/.html' % video_id
+        webpage = self._download_webpage(mrss_url, video_id)
+
+        mobj = re.search(r'\'srv\': \'(?P<server>[^\']*)\',\s*\'file\': \'(?P<file>[^\']+)\',', webpage)
+        if mobj is None:
+            raise ExtractorError(u'Unable to extract media URL')
+        if len(mobj.group('server')) == 0:
+            video_url = compat_urllib_parse.unquote(mobj.group('file'))
+        else:
+            video_url = mobj.group('server')+'/key='+mobj.group('file')
+        video_extension = video_url.split('.')[-1]
+
+        video_title = self._html_search_regex(r'<title>(?P<title>.+?) - xHamster\.com</title>',
+            webpage, u'title')
+
+        # Can't see the description anywhere in the UI
+        # video_description = self._html_search_regex(r'<span>Description: </span>(?P<description>[^<]+)',
+        #     webpage, u'description', fatal=False)
+        # if video_description: video_description = unescapeHTML(video_description)
+
+        mobj = re.search(r'hint=\'(?P<upload_date_Y>[0-9]{4})-(?P<upload_date_m>[0-9]{2})-(?P<upload_date_d>[0-9]{2}) [0-9]{2}:[0-9]{2}:[0-9]{2} [A-Z]{3,4}\'', webpage)
+        if mobj:
+            video_upload_date = mobj.group('upload_date_Y')+mobj.group('upload_date_m')+mobj.group('upload_date_d')
+        else:
+            video_upload_date = None
+            self._downloader.report_warning(u'Unable to extract upload date')
+
+        video_uploader_id = self._html_search_regex(r'<a href=\'/user/[^>]+>(?P<uploader_id>[^<]+)',
+            webpage, u'uploader id', default=u'anonymous')
+
+        video_thumbnail = self._search_regex(r'\'image\':\'(?P<thumbnail>[^\']+)\'',
+            webpage, u'thumbnail', fatal=False)
+
+        return [{
+            'id':       video_id,
+            'url':      video_url,
+            'ext':      video_extension,
+            'title':    video_title,
+            # 'description': video_description,
+            'upload_date': video_upload_date,
+            'uploader_id': video_uploader_id,
+            'thumbnail': video_thumbnail
+        }]
+
+class HypemIE(InfoExtractor):
+    """Information Extractor for hypem"""
+    _VALID_URL = r'(?:http://)?(?:www\.)?hypem\.com/track/([^/]+)/([^/]+)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        track_id = mobj.group(1)
+
+        data = { 'ax': 1, 'ts': time.time() }
+        data_encoded = compat_urllib_parse.urlencode(data)
+        complete_url = url + "?" + data_encoded
+        request = compat_urllib_request.Request(complete_url)
+        response, urlh = self._download_webpage_handle(request, track_id, u'Downloading webpage with the url')
+        cookie = urlh.headers.get('Set-Cookie', '')
+
+        self.report_extraction(track_id)
+
+        html_tracks = self._html_search_regex(r'<script type="application/json" id="displayList-data">(.*?)</script>',
+            response, u'tracks', flags=re.MULTILINE|re.DOTALL).strip()
+        try:
+            track_list = json.loads(html_tracks)
+            track = track_list[u'tracks'][0]
+        except ValueError:
+            raise ExtractorError(u'Hypemachine contained invalid JSON.')
+
+        key = track[u"key"]
+        track_id = track[u"id"]
+        artist = track[u"artist"]
+        title = track[u"song"]
+
+        serve_url = "http://hypem.com/serve/source/%s/%s" % (compat_str(track_id), compat_str(key))
+        request = compat_urllib_request.Request(serve_url, "" , {'Content-Type': 'application/json'})
+        request.add_header('cookie', cookie)
+        song_data_json = self._download_webpage(request, track_id, u'Downloading metadata')
+        try:
+            song_data = json.loads(song_data_json)
+        except ValueError:
+            raise ExtractorError(u'Hypemachine contained invalid JSON.')
+        final_url = song_data[u"url"]
+
+        return [{
+            'id':       track_id,
+            'url':      final_url,
+            'ext':      "mp3",
+            'title':    title,
+            'artist':   artist,
+        }]
+
+class Vbox7IE(InfoExtractor):
+    """Information Extractor for Vbox7"""
+    _VALID_URL = r'(?:http://)?(?:www\.)?vbox7\.com/play:([^/]+)'
+
+    def _real_extract(self,url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        video_id = mobj.group(1)
+
+        redirect_page, urlh = self._download_webpage_handle(url, video_id)
+        new_location = self._search_regex(r'window\.location = \'(.*)\';', redirect_page, u'redirect location')
+        redirect_url = urlh.geturl() + new_location
+        webpage = self._download_webpage(redirect_url, video_id, u'Downloading redirect page')
+
+        title = self._html_search_regex(r'<title>(.*)</title>',
+            webpage, u'title').split('/')[0].strip()
+
+        ext = "flv"
+        info_url = "http://vbox7.com/play/magare.do"
+        data = compat_urllib_parse.urlencode({'as3':'1','vid':video_id})
+        info_request = compat_urllib_request.Request(info_url, data)
+        info_request.add_header('Content-Type', 'application/x-www-form-urlencoded')
+        info_response = self._download_webpage(info_request, video_id, u'Downloading info webpage')
+        if info_response is None:
+            raise ExtractorError(u'Unable to extract the media url')
+        (final_url, thumbnail_url) = map(lambda x: x.split('=')[1], info_response.split('&'))
+
+        return [{
+            'id':        video_id,
+            'url':       final_url,
+            'ext':       ext,
+            'title':     title,
+            'thumbnail': thumbnail_url,
+        }]
+
+class GametrailersIE(InfoExtractor):
+    _VALID_URL = r'http://www.gametrailers.com/(?P<type>videos|reviews|full-episodes)/(?P<id>.*?)/(?P<title>.*)'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError(u'Invalid URL: %s' % url)
+        video_id = mobj.group('id')
+        video_type = mobj.group('type')
+        webpage = self._download_webpage(url, video_id)
+        if video_type == 'full-episodes':
+            mgid_re = r'data-video="(?P<mgid>mgid:.*?)"'
+        else:
+            mgid_re = r'data-contentId=\'(?P<mgid>mgid:.*?)\''
+        mgid = self._search_regex(mgid_re, webpage, u'mgid')
+        data = compat_urllib_parse.urlencode({'uri': mgid, 'acceptMethods': 'fms'})
+
+        info_page = self._download_webpage('http://www.gametrailers.com/feeds/mrss?' + data,
+                                           video_id, u'Downloading video info')
+        links_webpage = self._download_webpage('http://www.gametrailers.com/feeds/mediagen/?' + data,
+                                               video_id, u'Downloading video urls info')
+
+        self.report_extraction(video_id)
+        info_re = r'''<title><!\[CDATA\[(?P<title>.*?)\]\]></title>.*
+                      <description><!\[CDATA\[(?P<description>.*?)\]\]></description>.*
+                      <image>.*
+                        <url>(?P<thumb>.*?)</url>.*
+                      </image>'''
+
+        m_info = re.search(info_re, info_page, re.VERBOSE|re.DOTALL)
+        if m_info is None:
+            raise ExtractorError(u'Unable to extract video info')
+        video_title = m_info.group('title')
+        video_description = m_info.group('description')
+        video_thumb = m_info.group('thumb')
+
+        m_urls = list(re.finditer(r'<src>(?P<url>.*)</src>', links_webpage))
+        if m_urls is None or len(m_urls) == 0:
+            raise ExtractError(u'Unable to extrat video url')
+        # They are sorted from worst to best quality
+        video_url = m_urls[-1].group('url')
+
+        return {'url':         video_url,
+                'id':          video_id,
+                'title':       video_title,
+                # Videos are actually flv not mp4
+                'ext':         'flv',
+                'thumbnail':   video_thumb,
+                'description': video_description,
+                }
 
 def gen_extractors():
     """ Return a list of an instance of every supported extractor.
@@ -4411,8 +4570,8 @@ def gen_extractors():
         YahooSearchIE(),
         DepositFilesIE(),
         FacebookIE(),
-        BlipTVUserIE(),
         BlipTVIE(),
+        BlipTVUserIE(),
         VimeoIE(),
         MyVideoIE(),
         ComedyCentralIE(),
@@ -4446,5 +4605,22 @@ def gen_extractors():
         SpiegelIE(),
         LiveLeakIE(),
         ARDIE(),
+        ZDFIE(),
+        TumblrIE(),
+        BandcampIE(),
+        RedTubeIE(),
+        InaIE(),
+        HowcastIE(),
+        VineIE(),
+        FlickrIE(),
+        TeamcocoIE(),
+        XHamsterIE(),
+        HypemIE(),
+        Vbox7IE(),
+        GametrailersIE(),
         GenericIE()
     ]
+
+def get_info_extractor(ie_name):
+    """Returns the info extractor class with the given ie_name"""
+    return globals()[ie_name+'IE']