X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/a37ec5190dc9843f04d93d3bc4ce8124ea4f133f..14e3f771bef4687dd88facbc9a1de4cfc110d213:/youtube-dl?ds=sidebyside
diff --git a/youtube-dl b/youtube-dl
index 50d83cf..7897240 100755
--- a/youtube-dl
+++ b/youtube-dl
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-__author__  = (
+__authors__  = (
 	'Ricardo Garcia Gonzalez',
 	'Danny Colligan',
 	'Benjamin Johnson',
@@ -12,24 +12,32 @@ __author__  = (
 	'Rogério Brito',
 	'Philipp Hagemeister',
 	'Sören Schulze',
+	'Kevin Ngo',
+	'Ori Avtalion',
+	'shizeeg',
 	)
 
 __license__ = 'Public Domain'
-__version__ = '2011.09.14'
+__version__ = '2012.02.27'
 
 UPDATE_URL = 'https://raw.github.com/rg3/youtube-dl/master/youtube-dl'
 
+
 import cookielib
 import datetime
+import getpass
 import gzip
 import htmlentitydefs
+import HTMLParser
 import httplib
 import locale
 import math
 import netrc
+import optparse
 import os
 import os.path
 import re
+import shlex
 import socket
 import string
 import subprocess
@@ -65,8 +73,8 @@ except ImportError:
 
 try:
 	import xml.etree.ElementTree
-except ImportError: # Python<2.5
-	pass # Not officially supported, but let it slip
+except ImportError: # Python<2.5: Not officially supported, but let it slip
+	warnings.warn('xml.etree.ElementTree support is missing. Consider upgrading to Python >= 2.5 if you get related errors.')
 
 std_headers = {
 	'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:5.0.1) Gecko/20100101 Firefox/5.0.1',
@@ -76,8 +84,6 @@ std_headers = {
 	'Accept-Language': 'en-us,en;q=0.5',
 }
 
-simple_title_chars = string.ascii_letters.decode('ascii') + string.digits.decode('ascii')
-
 try:
 	import json
 except ImportError: # Python <2.6, use trivialjson (https://github.com/phihag/trivialjson):
@@ -257,14 +263,14 @@ def sanitize_open(filename, open_mode):
 				import msvcrt
 				msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
 			return (sys.stdout, filename)
-		stream = open(filename, open_mode)
+		stream = open(_encodeFilename(filename), open_mode)
 		return (stream, filename)
 	except (IOError, OSError), err:
 		# In case of error, try to remove win32 forbidden chars
 		filename = re.sub(ur'[/<>:"\|\?\*]', u'#', filename)
 
 		# An exception here should be caught in the caller
-		stream = open(filename, open_mode)
+		stream = open(_encodeFilename(filename), open_mode)
 		return (stream, filename)
 
 
@@ -276,6 +282,41 @@ def timeconvert(timestr):
 		timestamp = email.utils.mktime_tz(timetuple)
 	return timestamp
 
+def _simplify_title(title):
+	expr = re.compile(ur'[^\w\d_\-]+', flags=re.UNICODE)
+	return expr.sub(u'_', title).strip(u'_')
+
+def _orderedSet(iterable):
+	""" Remove all duplicates from the input iterable """
+	res = []
+	for el in iterable:
+		if el not in res:
+			res.append(el)
+	return res
+
+def _unescapeHTML(s):
+	"""
+	@param s a string (of type unicode)
+	"""
+	assert type(s) == type(u'')
+
+	htmlParser = HTMLParser.HTMLParser()
+	return htmlParser.unescape(s)
+
+def _encodeFilename(s):
+	"""
+	@param s The name of the file (of type unicode)
+	"""
+
+	assert type(s) == type(u'')
+
+	if sys.platform == 'win32' and sys.getwindowsversion().major >= 5:
+		# Pass u'' directly to use Unicode APIs on Windows 2000 and up
+		# (Detecting Windows NT 4 is tricky because 'major >= 4' would
+		# match Windows 9x series as well. Besides, NT 4 is obsolete.)
+		return s
+	else:
+		return s.encode(sys.getfilesystemencoding(), 'ignore')
 
 class DownloadError(Exception):
 	"""Download Error exception.
@@ -304,6 +345,10 @@ class PostProcessingError(Exception):
 	"""
 	pass
 
+class MaxDownloadsReached(Exception):
+	""" --max-downloads limit has been reached. """
+	pass
+
 
 class UnavailableVideoError(Exception):
 	"""Unavailable Format exception.
@@ -437,6 +482,8 @@ class FileDownloader(object):
 	noprogress:       Do not print the progress bar.
 	playliststart:    Playlist item to start at.
 	playlistend:      Playlist item to end at.
+	matchtitle:       Download only matching titles.
+	rejecttitle:      Reject downloads for matching titles.
 	logtostderr:      Log messages to stderr instead of stdout.
 	consoletitle:     Display progress in console window's titlebar.
 	nopart:           Do not use temporary .part files.
@@ -535,16 +582,17 @@ class FileDownloader(object):
 		self._pps.append(pp)
 		pp.set_downloader(self)
 
-	def to_screen(self, message, skip_eol=False, ignore_encoding_errors=False):
+	def to_screen(self, message, skip_eol=False):
 		"""Print message to stdout if not in quiet mode."""
-		try:
-			if not self.params.get('quiet', False):
-				terminator = [u'\n', u''][skip_eol]
-				print >>self._screen_file, (u'%s%s' % (message, terminator)).encode(preferredencoding()),
+		assert type(message) == type(u'')
+		if not self.params.get('quiet', False):
+			terminator = [u'\n', u''][skip_eol]
+			output = message + terminator
+
+			if 'b' not in self._screen_file.mode or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
+				output = output.encode(preferredencoding(), 'ignore')
+			self._screen_file.write(output)
 			self._screen_file.flush()
-		except (UnicodeEncodeError), err:
-			if not ignore_encoding_errors:
-				raise
 
 	def to_stderr(self, message):
 		"""Print message to stderr."""
@@ -594,7 +642,7 @@ class FileDownloader(object):
 	def temp_name(self, filename):
 		"""Returns a temporary filename for the given filename."""
 		if self.params.get('nopart', False) or filename == u'-' or \
-				(os.path.exists(filename) and not os.path.isfile(filename)):
+				(os.path.exists(_encodeFilename(filename)) and not os.path.isfile(_encodeFilename(filename))):
 			return filename
 		return filename + u'.part'
 
@@ -607,7 +655,7 @@ class FileDownloader(object):
 		try:
 			if old_filename == new_filename:
 				return
-			os.rename(old_filename, new_filename)
+			os.rename(_encodeFilename(old_filename), _encodeFilename(new_filename))
 		except (IOError, OSError), err:
 			self.trouble(u'ERROR: unable to rename file')
 
@@ -615,30 +663,31 @@ class FileDownloader(object):
 		"""Try to set the last-modified time of the given file."""
 		if last_modified_hdr is None:
 			return
-		if not os.path.isfile(filename):
+		if not os.path.isfile(_encodeFilename(filename)):
 			return
 		timestr = last_modified_hdr
 		if timestr is None:
 			return
 		filetime = timeconvert(timestr)
 		if filetime is None:
-			return
+			return filetime
 		try:
 			os.utime(filename, (time.time(), filetime))
 		except:
 			pass
+		return filetime
 
 	def report_writedescription(self, descfn):
 		""" Report that the description file is being written """
-		self.to_screen(u'[info] Writing video description to: %s' % descfn, ignore_encoding_errors=True)
+		self.to_screen(u'[info] Writing video description to: ' + descfn)
 
 	def report_writeinfojson(self, infofn):
 		""" Report that the metadata file has been written """
-		self.to_screen(u'[info] Video description metadata as JSON to: %s' % infofn, ignore_encoding_errors=True)
+		self.to_screen(u'[info] Video description metadata as JSON to: ' + infofn)
 
 	def report_destination(self, filename):
 		"""Report destination filename."""
-		self.to_screen(u'[download] Destination: %s' % filename, ignore_encoding_errors=True)
+		self.to_screen(u'[download] Destination: ' + filename)
 
 	def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
 		"""Report download progress."""
@@ -691,34 +740,57 @@ class FileDownloader(object):
 			self.trouble(u'ERROR: invalid system charset or erroneous output template')
 			return None
 
+	def _match_entry(self, info_dict):
+		""" Returns None iff the file should be downloaded """
+
+		title = info_dict['title']
+		matchtitle = self.params.get('matchtitle', False)
+		if matchtitle and not re.search(matchtitle, title, re.IGNORECASE):
+			return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"'
+		rejecttitle = self.params.get('rejecttitle', False)
+		if rejecttitle and re.search(rejecttitle, title, re.IGNORECASE):
+			return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"'
+		return None
+
 	def process_info(self, info_dict):
 		"""Process a single dictionary returned by an InfoExtractor."""
+
+		reason = self._match_entry(info_dict)
+		if reason is not None:
+			self.to_screen(u'[download] ' + reason)
+			return
+
+		max_downloads = self.params.get('max_downloads')
+		if max_downloads is not None:
+			if self._num_downloads > int(max_downloads):
+				raise MaxDownloadsReached()
+
 		filename = self.prepare_filename(info_dict)
+		
+		# Forced printings
+		if self.params.get('forcetitle', False):
+			print info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace')
+		if self.params.get('forceurl', False):
+			print info_dict['url'].encode(preferredencoding(), 'xmlcharrefreplace')
+		if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict:
+			print info_dict['thumbnail'].encode(preferredencoding(), 'xmlcharrefreplace')
+		if self.params.get('forcedescription', False) and 'description' in info_dict:
+			print info_dict['description'].encode(preferredencoding(), 'xmlcharrefreplace')
+		if self.params.get('forcefilename', False) and filename is not None:
+			print filename.encode(preferredencoding(), 'xmlcharrefreplace')
+		if self.params.get('forceformat', False):
+			print info_dict['format'].encode(preferredencoding(), 'xmlcharrefreplace')
+
 		# Do nothing else if in simulate mode
 		if self.params.get('simulate', False):
-			# Forced printings
-			if self.params.get('forcetitle', False):
-				print info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace')
-			if self.params.get('forceurl', False):
-				print info_dict['url'].encode(preferredencoding(), 'xmlcharrefreplace')
-			if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict:
-				print info_dict['thumbnail'].encode(preferredencoding(), 'xmlcharrefreplace')
-			if self.params.get('forcedescription', False) and 'description' in info_dict:
-				print info_dict['description'].encode(preferredencoding(), 'xmlcharrefreplace')
-			if self.params.get('forcefilename', False) and filename is not None:
-				print filename.encode(preferredencoding(), 'xmlcharrefreplace')
-
 			return
 
 		if filename is None:
 			return
-		if self.params.get('nooverwrites', False) and os.path.exists(filename):
-			self.to_stderr(u'WARNING: file exists and will be skipped')
-			return
 
 		try:
-			dn = os.path.dirname(filename)
-			if dn != '' and not os.path.exists(dn):
+			dn = os.path.dirname(_encodeFilename(filename))
+			if dn != '' and not os.path.exists(dn): # dn is already encoded
 				os.makedirs(dn)
 		except (OSError, IOError), err:
 			self.trouble(u'ERROR: unable to create directory ' + unicode(err))
@@ -726,9 +798,9 @@ class FileDownloader(object):
 
 		if self.params.get('writedescription', False):
 			try:
-				descfn = filename + '.description'
+				descfn = filename + u'.description'
 				self.report_writedescription(descfn)
-				descfile = open(descfn, 'wb')
+				descfile = open(_encodeFilename(descfn), 'wb')
 				try:
 					descfile.write(info_dict['description'].encode('utf-8'))
 				finally:
@@ -738,7 +810,7 @@ class FileDownloader(object):
 				return
 
 		if self.params.get('writeinfojson', False):
-			infofn = filename + '.info.json'
+			infofn = filename + u'.info.json'
 			self.report_writeinfojson(infofn)
 			try:
 				json.dump
@@ -746,32 +818,37 @@ class FileDownloader(object):
 				self.trouble(u'ERROR: No JSON encoder found. Update to Python 2.6+, setup a json module, or leave out --write-info-json.')
 				return
 			try:
-				infof = open(infofn, 'wb')
+				infof = open(_encodeFilename(infofn), 'wb')
 				try:
-					json.dump(info_dict, infof)
+					json_info_dict = dict((k,v) for k,v in info_dict.iteritems() if not k in ('urlhandle',))
+					json.dump(json_info_dict, infof)
 				finally:
 					infof.close()
 			except (OSError, IOError):
 				self.trouble(u'ERROR: Cannot write metadata to JSON file ' + infofn)
 				return
 
-		try:
-			success = self._do_download(filename, info_dict['url'].encode('utf-8'), info_dict.get('player_url', None))
-		except (OSError, IOError), err:
-			raise UnavailableVideoError
-		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-			self.trouble(u'ERROR: unable to download video data: %s' % str(err))
-			return
-		except (ContentTooShortError, ), err:
-			self.trouble(u'ERROR: content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
-			return
-
-		if success:
-			try:
-				self.post_process(filename, info_dict)
-			except (PostProcessingError), err:
-				self.trouble(u'ERROR: postprocessing: %s' % str(err))
-				return
+		if not self.params.get('skip_download', False):
+			if self.params.get('nooverwrites', False) and os.path.exists(_encodeFilename(filename)):
+				success = True
+			else:
+				try:
+					success = self._do_download(filename, info_dict)
+				except (OSError, IOError), err:
+					raise UnavailableVideoError
+				except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+					self.trouble(u'ERROR: unable to download video data: %s' % str(err))
+					return
+				except (ContentTooShortError, ), err:
+					self.trouble(u'ERROR: content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
+					return
+	
+			if success:
+				try:
+					self.post_process(filename, info_dict)
+				except (PostProcessingError), err:
+					self.trouble(u'ERROR: postprocessing: %s' % str(err))
+					return
 
 	def download(self, url_list):
 		"""Download a given list of URLs."""
@@ -822,27 +899,43 @@ class FileDownloader(object):
 		# Download using rtmpdump. rtmpdump returns exit code 2 when
 		# the connection was interrumpted and resuming appears to be
 		# possible. This is part of rtmpdump's normal usage, AFAIK.
-		basic_args = ['rtmpdump'] + [[], ['-W', player_url]][player_url is not None] + ['-r', url, '-o', tmpfilename]
-		retval = subprocess.call(basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)])
+		basic_args = ['rtmpdump', '-q'] + [[], ['-W', player_url]][player_url is not None] + ['-r', url, '-o', tmpfilename]
+		args = basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)]
+		if self.params.get('verbose', False):
+			try:
+				import pipes
+				shell_quote = lambda args: ' '.join(map(pipes.quote, args))
+			except ImportError:
+				shell_quote = repr
+			self.to_screen(u'[debug] rtmpdump command line: ' + shell_quote(args))
+		retval = subprocess.call(args)
 		while retval == 2 or retval == 1:
-			prevsize = os.path.getsize(tmpfilename)
+			prevsize = os.path.getsize(_encodeFilename(tmpfilename))
 			self.to_screen(u'\r[rtmpdump] %s bytes' % prevsize, skip_eol=True)
 			time.sleep(5.0) # This seems to be needed
 			retval = subprocess.call(basic_args + ['-e'] + [[], ['-k', '1']][retval == 1])
-			cursize = os.path.getsize(tmpfilename)
+			cursize = os.path.getsize(_encodeFilename(tmpfilename))
 			if prevsize == cursize and retval == 1:
 				break
+			 # Some rtmp streams seem abort after ~ 99.8%. Don't complain for those
+			if prevsize == cursize and retval == 2 and cursize > 1024:
+				self.to_screen(u'\r[rtmpdump] Could not download the whole video. This can happen for some advertisements.')
+				retval = 0
+				break
 		if retval == 0:
-			self.to_screen(u'\r[rtmpdump] %s bytes' % os.path.getsize(tmpfilename))
+			self.to_screen(u'\r[rtmpdump] %s bytes' % os.path.getsize(_encodeFilename(tmpfilename)))
 			self.try_rename(tmpfilename, filename)
 			return True
 		else:
 			self.trouble(u'\nERROR: rtmpdump exited with code %d' % retval)
 			return False
 
-	def _do_download(self, filename, url, player_url):
+	def _do_download(self, filename, info_dict):
+		url = info_dict['url']
+		player_url = info_dict.get('player_url', None)
+
 		# Check file already present
-		if self.params.get('continuedl', False) and os.path.isfile(filename) and not self.params.get('nopart', False):
+		if self.params.get('continuedl', False) and os.path.isfile(_encodeFilename(filename)) and not self.params.get('nopart', False):
 			self.report_file_already_downloaded(filename)
 			return True
 
@@ -852,7 +945,6 @@ class FileDownloader(object):
 
 		tmpfilename = self.temp_name(filename)
 		stream = None
-		open_mode = 'wb'
 
 		# Do not include the Accept-Encoding header
 		headers = {'Youtubedl-no-compression': 'True'}
@@ -860,22 +952,27 @@ class FileDownloader(object):
 		request = urllib2.Request(url, None, headers)
 
 		# Establish possible resume length
-		if os.path.isfile(tmpfilename):
-			resume_len = os.path.getsize(tmpfilename)
+		if os.path.isfile(_encodeFilename(tmpfilename)):
+			resume_len = os.path.getsize(_encodeFilename(tmpfilename))
 		else:
 			resume_len = 0
 
-		# Request parameters in case of being able to resume
-		if self.params.get('continuedl', False) and resume_len != 0:
-			self.report_resuming_byte(resume_len)
-			request.add_header('Range', 'bytes=%d-' % resume_len)
-			open_mode = 'ab'
+		open_mode = 'wb'
+		if resume_len != 0:
+			if self.params.get('continuedl', False):
+				self.report_resuming_byte(resume_len)
+				request.add_header('Range','bytes=%d-' % resume_len)
+				open_mode = 'ab'
+			else:
+				resume_len = 0
 
 		count = 0
 		retries = self.params.get('retries', 0)
 		while count <= retries:
 			# Establish connection
 			try:
+				if count == 0 and 'urlhandle' in info_dict:
+					data = info_dict['urlhandle']
 				data = urllib2.urlopen(request)
 				break
 			except (urllib2.HTTPError, ), err:
@@ -953,10 +1050,13 @@ class FileDownloader(object):
 			block_size = self.best_block_size(after - before, len(data_block))
 
 			# Progress message
-			percent_str = self.calc_percent(byte_counter, data_len)
-			eta_str = self.calc_eta(start, time.time(), data_len - resume_len, byte_counter - resume_len)
 			speed_str = self.calc_speed(start, time.time(), byte_counter - resume_len)
-			self.report_progress(percent_str, data_len_str, speed_str, eta_str)
+			if data_len is None:
+				self.report_progress('Unknown %', data_len_str, speed_str, 'Unknown ETA')
+			else:
+				percent_str = self.calc_percent(byte_counter, data_len)
+				eta_str = self.calc_eta(start, time.time(), data_len - resume_len, byte_counter - resume_len)
+				self.report_progress(percent_str, data_len_str, speed_str, eta_str)
 
 			# Apply rate limit
 			self.slow_down(start, byte_counter - resume_len)
@@ -972,7 +1072,7 @@ class FileDownloader(object):
 
 		# Update file modification time
 		if self.params.get('updatetime', True):
-			self.try_utime(filename, data.info().get('last-modified', None))
+			info_dict['filetime'] = self.try_utime(filename, data.info().get('last-modified', None))
 
 		return True
 
@@ -1007,9 +1107,8 @@ class InfoExtractor(object):
 	description:	One-line video description.
 
 	Subclasses of this one should re-define the _real_initialize() and
-	_real_extract() methods, as well as the suitable() static method.
-	Probably, they should also be instantiated and added to the main
-	downloader.
+	_real_extract() methods and define a _VALID_URL regexp.
+	Probably, they should also be added to the list of extractors.
 	"""
 
 	_ready = False
@@ -1020,10 +1119,9 @@ class InfoExtractor(object):
 		self._ready = False
 		self.set_downloader(downloader)
 
-	@staticmethod
-	def suitable(url):
+	def suitable(self, url):
 		"""Receives a URL and returns True if suitable for this IE."""
-		return False
+		return re.match(self._VALID_URL, url) is not None
 
 	def initialize(self):
 		"""Initializes an instance (authentication, etc)."""
@@ -1052,13 +1150,14 @@ class InfoExtractor(object):
 class YoutubeIE(InfoExtractor):
 	"""Information extractor for youtube.com."""
 
-	_VALID_URL = r'^((?:https?://)?(?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/)(?:(?:(?:v|embed|e)/)|(?:(?:watch(?:_popup)?(?:\.php)?)?(?:\?|#!?)(?:.+&)?v=))?)?([0-9A-Za-z_-]+)(?(1).+)?$'
+	_VALID_URL = r'^((?:https?://)?(?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/)(?!view_play_list|my_playlists|artist|playlist)(?:(?:(?:v|embed|e)/)|(?:(?:watch(?:_popup)?(?:\.php)?)?(?:\?|#!?)(?:.+&)?v=))?)?([0-9A-Za-z_-]+)(?(1).+)?$'
 	_LANG_URL = r'http://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
 	_LOGIN_URL = 'https://www.youtube.com/signup?next=/&gl=US&hl=en'
 	_AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
 	_NETRC_MACHINE = 'youtube'
 	# Listed in order of quality
-	_available_formats = ['38', '37', '45', '22', '43', '35', '34', '18', '6', '5', '17', '13']
+	_available_formats = ['38', '37', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
+	_available_formats_prefer_free = ['38', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
 	_video_extensions = {
 		'13': '3gp',
 		'17': 'mp4',
@@ -1067,12 +1166,25 @@ class YoutubeIE(InfoExtractor):
 		'37': 'mp4',
 		'38': 'video', # You actually don't know if this will be MOV, AVI or whatever
 		'43': 'webm',
+		'44': 'webm',
 		'45': 'webm',
 	}
-
-	@staticmethod
-	def suitable(url):
-		return (re.match(YoutubeIE._VALID_URL, url) is not None)
+	_video_dimensions = {
+		'5': '240x400',
+		'6': '???',
+		'13': '???',
+		'17': '144x176',
+		'18': '360x640',
+		'22': '720x1280',
+		'34': '360x640',
+		'35': '480x854',
+		'37': '1080x1920',
+		'38': '3072x4096',
+		'43': '360x640',
+		'44': '480x854',
+		'45': '720x1280',
+	}	
+	IE_NAME = u'youtube'
 
 	def report_lang(self):
 		"""Report attempt to set language."""
@@ -1106,6 +1218,11 @@ class YoutubeIE(InfoExtractor):
 		"""Indicate the download will use the RTMP protocol."""
 		self._downloader.to_screen(u'[youtube] RTMP download detected')
 
+	def _print_formats(self, formats):
+		print 'Available formats:'
+		for x in formats:
+			print '%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???'))
+
 	def _real_initialize(self):
 		if self._downloader is None:
 			return
@@ -1185,7 +1302,7 @@ class YoutubeIE(InfoExtractor):
 
 		# Get video webpage
 		self.report_video_webpage_download(video_id)
-		request = urllib2.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id)
+		request = urllib2.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id)
 		try:
 			video_webpage = urllib2.urlopen(request).read()
 		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
@@ -1238,8 +1355,7 @@ class YoutubeIE(InfoExtractor):
 		video_title = sanitize_title(video_title)
 
 		# simplified title
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
-		simple_title = simple_title.strip(ur'_')
+		simple_title = _simplify_title(video_title)
 
 		# thumbnail image
 		if 'thumbnail_url' not in video_info:
@@ -1265,10 +1381,9 @@ class YoutubeIE(InfoExtractor):
 			lxml.etree
 		except NameError:
 			video_description = u'No description available.'
-			if self._downloader.params.get('forcedescription', False) or self._downloader.params.get('writedescription', False):
-				mobj = re.search(r'', video_webpage)
-				if mobj is not None:
-					video_description = mobj.group(1).decode('utf-8')
+			mobj = re.search(r'', video_webpage)
+			if mobj is not None:
+				video_description = mobj.group(1).decode('utf-8')
 		else:
 			html_parser = lxml.etree.HTMLParser(encoding='utf-8')
 			vwebpage_doc = lxml.etree.parse(StringIO.StringIO(video_webpage), html_parser)
@@ -1291,24 +1406,36 @@ class YoutubeIE(InfoExtractor):
 			url_map = dict((ud['itag'][0], ud['url'][0]) for ud in url_data)
 
 			format_limit = self._downloader.params.get('format_limit', None)
-			if format_limit is not None and format_limit in self._available_formats:
-				format_list = self._available_formats[self._available_formats.index(format_limit):]
+			available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
+			if format_limit is not None and format_limit in available_formats:
+				format_list = available_formats[available_formats.index(format_limit):]
 			else:
-				format_list = self._available_formats
+				format_list = available_formats
 			existing_formats = [x for x in format_list if x in url_map]
 			if len(existing_formats) == 0:
 				self._downloader.trouble(u'ERROR: no known formats available for video')
 				return
-			if req_format is None:
+			if self._downloader.params.get('listformats', None):
+				self._print_formats(existing_formats)
+				return
+			if req_format is None or req_format == 'best':
 				video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
-			elif req_format == '-1':
+			elif req_format == 'worst':
+				video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
+			elif req_format in ('-1', 'all'):
 				video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
 			else:
-				# Specific format
-				if req_format not in url_map:
+				# Specific formats. We pick the first in a slash-delimeted sequence.
+				# For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
+				req_formats = req_format.split('/')
+				video_url_list = None
+				for rf in req_formats:
+					if rf in url_map:
+						video_url_list = [(rf, url_map[rf])]
+						break
+				if video_url_list is None:
 					self._downloader.trouble(u'ERROR: requested format not available')
 					return
-				video_url_list = [(req_format, url_map[req_format])] # Specific format
 		else:
 			self._downloader.trouble(u'ERROR: no conn or url_encoded_fmt_stream_map information found in video info')
 			return
@@ -1346,15 +1473,12 @@ class MetacafeIE(InfoExtractor):
 	_DISCLAIMER = 'http://www.metacafe.com/family_filter/'
 	_FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
 	_youtube_ie = None
+	IE_NAME = u'metacafe'
 
 	def __init__(self, youtube_ie, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 		self._youtube_ie = youtube_ie
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(MetacafeIE._VALID_URL, url) is not None)
-
 	def report_disclaimer(self):
 		"""Report disclaimer retrieval."""
 		self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
@@ -1488,14 +1612,11 @@ class DailymotionIE(InfoExtractor):
 	"""Information Extractor for Dailymotion"""
 
 	_VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^_/]+)_([^/]+)'
+	IE_NAME = u'dailymotion'
 
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(DailymotionIE._VALID_URL, url) is not None)
-
 	def report_download_webpage(self, video_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
@@ -1504,9 +1625,6 @@ class DailymotionIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self, url):
 		# Extract id and simplified title from URL
 		mobj = re.match(self._VALID_URL, url)
@@ -1518,7 +1636,6 @@ class DailymotionIE(InfoExtractor):
 		self._downloader.increment_downloads()
 		video_id = mobj.group(1)
 
-		simple_title = mobj.group(2).decode('utf-8')
 		video_extension = 'flv'
 
 		# Retrieve video webpage to extract further information
@@ -1548,12 +1665,13 @@ class DailymotionIE(InfoExtractor):
 
 		video_url = mediaURL
 
-		mobj = re.search(r'(?im)
Dailymotion\s*-\s*(.+)\s*-\s*[^<]+?', webpage)
+		mobj = re.search(r'', webpage)
 		if mobj is None:
 			self._downloader.trouble(u'ERROR: unable to extract title')
 			return
-		video_title = mobj.group(1).decode('utf-8')
+		video_title = _unescapeHTML(mobj.group('title').decode('utf-8'))
 		video_title = sanitize_title(video_title)
+		simple_title = _simplify_title(video_title)
 
 		mobj = re.search(r'(?im)[^<]+?]+?>([^<]+?)', webpage)
 		if mobj is None:
@@ -1582,14 +1700,11 @@ class GoogleIE(InfoExtractor):
 	"""Information extractor for video.google.com."""
 
 	_VALID_URL = r'(?:http://)?video\.google\.(?:com(?:\.au)?|co\.(?:uk|jp|kr|cr)|ca|de|es|fr|it|nl|pl)/videoplay\?docid=([^\&]+).*'
+	IE_NAME = u'video.google'
 
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(GoogleIE._VALID_URL, url) is not None)
-
 	def report_download_webpage(self, video_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'[video.google] %s: Downloading webpage' % video_id)
@@ -1598,9 +1713,6 @@ class GoogleIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[video.google] %s: Extracting information' % video_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self, url):
 		# Extract id from URL
 		mobj = re.match(self._VALID_URL, url)
@@ -1644,7 +1756,7 @@ class GoogleIE(InfoExtractor):
 			return
 		video_title = mobj.group(1).decode('utf-8')
 		video_title = sanitize_title(video_title)
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
+		simple_title = _simplify_title(video_title)
 
 		# Extract video description
 		mobj = re.search(r'([^<]*)', webpage)
@@ -1692,14 +1804,11 @@ class PhotobucketIE(InfoExtractor):
 	"""Information extractor for photobucket.com."""
 
 	_VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
+	IE_NAME = u'photobucket'
 
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(PhotobucketIE._VALID_URL, url) is not None)
-
 	def report_download_webpage(self, video_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'[photobucket] %s: Downloading webpage' % video_id)
@@ -1708,9 +1817,6 @@ class PhotobucketIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[photobucket] %s: Extracting information' % video_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self, url):
 		# Extract id from URL
 		mobj = re.match(self._VALID_URL, url)
@@ -1749,7 +1855,7 @@ class PhotobucketIE(InfoExtractor):
 			return
 		video_title = mobj.group(1).decode('utf-8')
 		video_title = sanitize_title(video_title)
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
+		simple_title = _simplify_title(vide_title)
 
 		video_uploader = mobj.group(2).decode('utf-8')
 
@@ -1777,14 +1883,11 @@ class YahooIE(InfoExtractor):
 	# _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)
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(YahooIE._VALID_URL, url) is not None)
-
 	def report_download_webpage(self, video_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'[video.yahoo] %s: Downloading webpage' % video_id)
@@ -1793,9 +1896,6 @@ class YahooIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[video.yahoo] %s: Extracting information' % video_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self, url, new_video=True):
 		# Extract ID from URL
 		mobj = re.match(self._VALID_URL, url)
@@ -1849,7 +1949,7 @@ class YahooIE(InfoExtractor):
 			self._downloader.trouble(u'ERROR: unable to extract video title')
 			return
 		video_title = mobj.group(1).decode('utf-8')
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
+		simple_title = _simplify_title(video_title)
 
 		mobj = re.search(r'', webpage)
 		if mobj is None:
@@ -1933,14 +2033,11 @@ class VimeoIE(InfoExtractor):
 
 	# _VALID_URL matches Vimeo URLs
 	_VALID_URL = r'(?:https?://)?(?:(?:www|player).)?vimeo\.com/(?:groups/[^/]+/)?(?:videos?/)?([0-9]+)'
+	IE_NAME = u'vimeo'
 
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(VimeoIE._VALID_URL, url) is not None)
-
 	def report_download_webpage(self, video_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'[vimeo] %s: Downloading webpage' % video_id)
@@ -1949,9 +2046,6 @@ class VimeoIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[vimeo] %s: Extracting information' % video_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self, url, new_video=True):
 		# Extract ID from URL
 		mobj = re.match(self._VALID_URL, url)
@@ -1983,7 +2077,7 @@ class VimeoIE(InfoExtractor):
 			self._downloader.trouble(u'ERROR: unable to extract video title')
 			return
 		video_title = mobj.group(1).decode('utf-8')
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
+		simple_title = _simplify_title(video_title)
 
 		# Extract uploader
 		mobj = re.search(r'http://vimeo.com/(.*?)', webpage)
@@ -2015,6 +2109,18 @@ class VimeoIE(InfoExtractor):
 			return
 		sig = mobj.group(1).decode('utf-8')
 
+		# Vimeo specific: extract video quality information
+		mobj = re.search(r'(\d+)', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video quality information')
+			return
+		quality = mobj.group(1).decode('utf-8')
+
+		if int(quality) == 1:
+			quality = 'hd'
+		else:
+			quality = 'sd'
+
 		# Vimeo specific: Extract request signature expiration
 		mobj = re.search(r'(.*?)', webpage)
 		if mobj is None:
@@ -2022,7 +2128,7 @@ class VimeoIE(InfoExtractor):
 			return
 		sig_exp = mobj.group(1).decode('utf-8')
 
-		video_url = "http://vimeo.com/moogaloop/play/clip:%s/%s/%s" % (video_id, sig, sig_exp)
+		video_url = "http://vimeo.com/moogaloop/play/clip:%s/%s/%s/?q=%s" % (video_id, sig, sig_exp, quality)
 
 		try:
 			# Process video information
@@ -2047,13 +2153,12 @@ class VimeoIE(InfoExtractor):
 class GenericIE(InfoExtractor):
 	"""Generic last-resort information extractor."""
 
+	_VALID_URL = r'.*'
+	IE_NAME = u'generic'
+
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 
-	@staticmethod
-	def suitable(url):
-		return True
-
 	def report_download_webpage(self, video_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
@@ -2063,9 +2168,6 @@ class GenericIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self, url):
 		# At this point we have a new video
 		self._downloader.increment_downloads()
@@ -2119,7 +2221,7 @@ class GenericIE(InfoExtractor):
 			return
 		video_title = mobj.group(1).decode('utf-8')
 		video_title = sanitize_title(video_title)
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
+		simple_title = _simplify_title(video_title)
 
 		# video uploader is domain name
 		mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
@@ -2147,21 +2249,18 @@ class GenericIE(InfoExtractor):
 
 class YoutubeSearchIE(InfoExtractor):
 	"""Information Extractor for YouTube search queries."""
-	_VALID_QUERY = r'ytsearch(\d+|all)?:[\s\S]+'
+	_VALID_URL = r'ytsearch(\d+|all)?:[\s\S]+'
 	_TEMPLATE_URL = 'http://www.youtube.com/results?search_query=%s&page=%s&gl=US&hl=en'
 	_VIDEO_INDICATOR = r'href="/watch\?v=.+?"'
 	_MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*'
 	_youtube_ie = None
 	_max_youtube_results = 1000
+	IE_NAME = u'youtube:search'
 
 	def __init__(self, youtube_ie, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 		self._youtube_ie = youtube_ie
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(YoutubeSearchIE._VALID_QUERY, url) is not None)
-
 	def report_download_page(self, query, pagenum):
 		"""Report attempt to download playlist page with given number."""
 		query = query.decode(preferredencoding())
@@ -2171,7 +2270,7 @@ class YoutubeSearchIE(InfoExtractor):
 		self._youtube_ie.initialize()
 
 	def _real_extract(self, query):
-		mobj = re.match(self._VALID_QUERY, query)
+		mobj = re.match(self._VALID_URL, query)
 		if mobj is None:
 			self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
 			return
@@ -2239,21 +2338,18 @@ class YoutubeSearchIE(InfoExtractor):
 
 class GoogleSearchIE(InfoExtractor):
 	"""Information Extractor for Google Video search queries."""
-	_VALID_QUERY = r'gvsearch(\d+|all)?:[\s\S]+'
+	_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'videoplay\?docid=([^\&>]+)\&'
 	_MORE_PAGES_INDICATOR = r'Next'
 	_google_ie = None
 	_max_google_results = 1000
+	IE_NAME = u'video.google:search'
 
 	def __init__(self, google_ie, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 		self._google_ie = google_ie
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(GoogleSearchIE._VALID_QUERY, url) is not None)
-
 	def report_download_page(self, query, pagenum):
 		"""Report attempt to download playlist page with given number."""
 		query = query.decode(preferredencoding())
@@ -2263,7 +2359,7 @@ class GoogleSearchIE(InfoExtractor):
 		self._google_ie.initialize()
 
 	def _real_extract(self, query):
-		mobj = re.match(self._VALID_QUERY, query)
+		mobj = re.match(self._VALID_URL, query)
 		if mobj is None:
 			self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
 			return
@@ -2331,21 +2427,18 @@ class GoogleSearchIE(InfoExtractor):
 
 class YahooSearchIE(InfoExtractor):
 	"""Information Extractor for Yahoo! Video search queries."""
-	_VALID_QUERY = r'yvsearch(\d+|all)?:[\s\S]+'
+	_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'
 	_yahoo_ie = None
 	_max_yahoo_results = 1000
+	IE_NAME = u'video.yahoo:search'
 
 	def __init__(self, yahoo_ie, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 		self._yahoo_ie = yahoo_ie
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(YahooSearchIE._VALID_QUERY, url) is not None)
-
 	def report_download_page(self, query, pagenum):
 		"""Report attempt to download playlist page with given number."""
 		query = query.decode(preferredencoding())
@@ -2355,7 +2448,7 @@ class YahooSearchIE(InfoExtractor):
 		self._yahoo_ie.initialize()
 
 	def _real_extract(self, query):
-		mobj = re.match(self._VALID_QUERY, query)
+		mobj = re.match(self._VALID_URL, query)
 		if mobj is None:
 			self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
 			return
@@ -2424,20 +2517,17 @@ class YahooSearchIE(InfoExtractor):
 class YoutubePlaylistIE(InfoExtractor):
 	"""Information Extractor for YouTube playlists."""
 
-	_VALID_URL = r'(?:http://)?(?:\w+\.)?youtube.com/(?:(?:view_play_list|my_playlists|artist|playlist)\?.*?(p|a|list)=|user/.*?/user/|p/|user/.*?#[pg]/c/)([0-9A-Za-z]+)(?:/.*?/([0-9A-Za-z_-]+))?.*'
+	_VALID_URL = r'(?:https?://)?(?:\w+\.)?youtube\.com/(?:(?:course|view_play_list|my_playlists|artist|playlist)\?.*?(p|a|list)=|user/.*?/user/|p/|user/.*?#[pg]/c/)(?:PL)?([0-9A-Za-z-_]+)(?:/.*?/([0-9A-Za-z_-]+))?.*'
 	_TEMPLATE_URL = 'http://www.youtube.com/%s?%s=%s&page=%s&gl=US&hl=en'
 	_VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
 	_MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*'
 	_youtube_ie = None
+	IE_NAME = u'youtube:playlist'
 
 	def __init__(self, youtube_ie, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 		self._youtube_ie = youtube_ie
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(YoutubePlaylistIE._VALID_URL, url) 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))
@@ -2471,7 +2561,8 @@ class YoutubePlaylistIE(InfoExtractor):
 
 		while True:
 			self.report_download_page(playlist_id, pagenum)
-			request = urllib2.Request(self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum))
+			url = self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum)
+			request = urllib2.Request(url)
 			try:
 				page = urllib2.urlopen(request).read()
 			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
@@ -2501,21 +2592,18 @@ class YoutubePlaylistIE(InfoExtractor):
 class YoutubeUserIE(InfoExtractor):
 	"""Information Extractor for YouTube users."""
 
-	_VALID_URL = r'(?:(?:(?:http://)?(?:\w+\.)?youtube.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
+	_VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
 	_TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
 	_GDATA_PAGE_SIZE = 50
 	_GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
-	_VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
+	_VIDEO_INDICATOR = r'/watch\?v=(.+?)[\<&]'
 	_youtube_ie = None
+	IE_NAME = u'youtube:user'
 
 	def __init__(self, youtube_ie, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 		self._youtube_ie = youtube_ie
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(YoutubeUserIE._VALID_URL, url) is not None)
-
 	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' %
@@ -2582,7 +2670,7 @@ class YoutubeUserIE(InfoExtractor):
 		else:
 			video_ids = video_ids[playliststart:playlistend]
 
-		self._downloader.to_screen("[youtube] user %s: Collected %d video ids (downloading %d of them)" %
+		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:
@@ -2592,15 +2680,12 @@ class YoutubeUserIE(InfoExtractor):
 class DepositFilesIE(InfoExtractor):
 	"""Information extractor for depositfiles.com"""
 
-	_VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles.com/(?:../(?#locale))?files/(.+)'
+	_VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles\.com/(?:../(?#locale))?files/(.+)'
+	IE_NAME = u'DepositFiles'
 
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(DepositFilesIE._VALID_URL, url) is not None)
-
 	def report_download_webpage(self, file_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'[DepositFiles] %s: Downloading webpage' % file_id)
@@ -2609,9 +2694,6 @@ class DepositFilesIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[DepositFiles] %s: Extracting information' % file_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self, url):
 		# At this point we have a new file
 		self._downloader.increment_downloads()
@@ -2672,22 +2754,20 @@ class DepositFilesIE(InfoExtractor):
 class FacebookIE(InfoExtractor):
 	"""Information Extractor for Facebook"""
 
-	_VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook.com/video/video.php\?(?:.*?)v=(?P\d+)(?:.*)'
+	_VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook\.com/(?:video/video|photo)\.php\?(?:.*?)v=(?P\d+)(?:.*)'
 	_LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
 	_NETRC_MACHINE = 'facebook'
-	_available_formats = ['highqual', 'lowqual']
+	_available_formats = ['video', 'highqual', 'lowqual']
 	_video_extensions = {
+		'video': 'mp4',
 		'highqual': 'mp4',
 		'lowqual': 'mp4',
 	}
+	IE_NAME = u'facebook'
 
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 
-	@staticmethod
-	def suitable(url):
-		return (re.match(FacebookIE._VALID_URL, url) is not None)
-
 	def _reporter(self, message):
 		"""Add header and report message."""
 		self._downloader.to_screen(u'[facebook] %s' % message)
@@ -2707,10 +2787,9 @@ class FacebookIE(InfoExtractor):
 	def _parse_page(self, video_webpage):
 		"""Extract video information from page"""
 		# General data
-		data = {'title': r'class="video_title datawrap">(.*?)',
+		data = {'title': r'\("video_title", "(.*?)"\)',
 			'description': r'(.*?)
',
 			'owner': r'\("video_owner_name", "(.*?)"\)',
-			'upload_date': r'data-date="(.*?)"',
 			'thumbnail':  r'\("thumb_url", "(?P.*?)"\)',
 			}
 		video_info = {}
@@ -2812,9 +2891,7 @@ class FacebookIE(InfoExtractor):
 		video_title = video_title.decode('utf-8')
 		video_title = sanitize_title(video_title)
 
-		# simplified title
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
-		simple_title = simple_title.strip(ur'_')
+		simple_title = _simplify_title(video_title)
 
 		# thumbnail image
 		if 'thumbnail' not in video_info:
@@ -2853,6 +2930,8 @@ class FacebookIE(InfoExtractor):
 				return
 			if req_format is None:
 				video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
+			elif req_format == 'worst':
+				video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
 			elif req_format == '-1':
 				video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
 			else:
@@ -2893,19 +2972,15 @@ class BlipTVIE(InfoExtractor):
 
 	_VALID_URL = r'^(?:https?://)?(?:\w+\.)?blip\.tv(/.+)$'
 	_URL_EXT = r'^.*\.([a-z0-9]+)$'
-
-	@staticmethod
-	def suitable(url):
-		return (re.match(BlipTVIE._VALID_URL, url) is not None)
+	IE_NAME = u'blip.tv'
 
 	def report_extraction(self, file_id):
 		"""Report information extraction."""
-		self._downloader.to_screen(u'[blip.tv] %s: Extracting information' % file_id)
+		self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
 
-	def _simplify_title(self, title):
-		res = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', title)
-		res = res.strip(ur'_')
-		return res
+	def report_direct_download(self, title):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[%s] %s: Direct download detected' % (self.IE_NAME, title))
 
 	def _real_extract(self, url):
 		mobj = re.match(self._VALID_URL, url)
@@ -2920,43 +2995,65 @@ class BlipTVIE(InfoExtractor):
 		json_url = url + cchar + 'skin=json&version=2&no_wrap=1'
 		request = urllib2.Request(json_url)
 		self.report_extraction(mobj.group(1))
+		info = None
 		try:
-			json_code = urllib2.urlopen(request).read()
+			urlh = urllib2.urlopen(request)
+			if urlh.headers.get('Content-Type', '').startswith('video/'): # Direct download
+				basename = url.split('/')[-1]
+				title,ext = os.path.splitext(basename)
+				title = title.decode('UTF-8')
+				ext = ext.replace('.', '')
+				self.report_direct_download(title)
+				info = {
+					'id': title,
+					'url': url,
+					'title': title,
+					'stitle': _simplify_title(title),
+					'ext': ext,
+					'urlhandle': urlh
+				}
 		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
 			self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
 			return
-		try:
-			json_data = json.loads(json_code)
-			if 'Post' in json_data:
-				data = json_data['Post']
-			else:
-				data = json_data
-
-			upload_date = datetime.datetime.strptime(data['datestamp'], '%m-%d-%y %H:%M%p').strftime('%Y%m%d')
-			video_url = data['media']['url']
-			umobj = re.match(self._URL_EXT, video_url)
-			if umobj is None:
-				raise ValueError('Can not determine filename extension')
-			ext = umobj.group(1)
+		if info is None: # Regular URL
+			try:
+				json_code = urlh.read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to read video info webpage: %s' % str(err))
+				return
 
-			self._downloader.increment_downloads()
+			try:
+				json_data = json.loads(json_code)
+				if 'Post' in json_data:
+					data = json_data['Post']
+				else:
+					data = json_data
+	
+				upload_date = datetime.datetime.strptime(data['datestamp'], '%m-%d-%y %H:%M%p').strftime('%Y%m%d')
+				video_url = data['media']['url']
+				umobj = re.match(self._URL_EXT, video_url)
+				if umobj is None:
+					raise ValueError('Can not determine filename extension')
+				ext = umobj.group(1)
+	
+				info = {
+					'id': data['item_id'],
+					'url': video_url,
+					'uploader': data['display_name'],
+					'upload_date': upload_date,
+					'title': data['title'],
+					'stitle': _simplify_title(data['title']),
+					'ext': ext,
+					'format': data['media']['mimeType'],
+					'thumbnail': data['thumbnailUrl'],
+					'description': data['description'],
+					'player_url': data['embedUrl']
+				}
+			except (ValueError,KeyError), err:
+				self._downloader.trouble(u'ERROR: unable to parse video information: %s' % repr(err))
+				return
 
-			info = {
-				'id': data['item_id'],
-				'url': video_url,
-				'uploader': data['display_name'],
-				'upload_date': upload_date,
-				'title': data['title'],
-				'stitle': self._simplify_title(data['title']),
-				'ext': ext,
-				'format': data['media']['mimeType'],
-				'thumbnail': data['thumbnailUrl'],
-				'description': data['description'],
-				'player_url': data['embedUrl']
-			}
-		except (ValueError,KeyError), err:
-			self._downloader.trouble(u'ERROR: unable to parse video information: %s' % repr(err))
-			return
+		self._downloader.increment_downloads()
 
 		try:
 			self._downloader.process_info(info)
@@ -2968,14 +3065,11 @@ class MyVideoIE(InfoExtractor):
 	"""Information Extractor for myvideo.de."""
 
 	_VALID_URL = r'(?:http://)?(?:www\.)?myvideo\.de/watch/([0-9]+)/([^?/]+).*'
+	IE_NAME = u'myvideo'
 
 	def __init__(self, downloader=None):
 		InfoExtractor.__init__(self, downloader)
 	
-	@staticmethod
-	def suitable(url):
-		return (re.match(MyVideoIE._VALID_URL, url) is not None)
-
 	def report_download_webpage(self, video_id):
 		"""Report webpage download."""
 		self._downloader.to_screen(u'[myvideo] %s: Downloading webpage' % video_id)
@@ -2984,9 +3078,6 @@ class MyVideoIE(InfoExtractor):
 		"""Report information extraction."""
 		self._downloader.to_screen(u'[myvideo] %s: Extracting information' % video_id)
 
-	def _real_initialize(self):
-		return
-
 	def _real_extract(self,url):
 		mobj = re.match(self._VALID_URL, url)
 		if mobj is None:
@@ -2994,10 +3085,6 @@ class MyVideoIE(InfoExtractor):
 			return
 
 		video_id = mobj.group(1)
-		simple_title = mobj.group(2).decode('utf-8')
-		# should actually not be necessary
-		simple_title = sanitize_title(simple_title)
-		simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', simple_title)
 
 		# Get video webpage
 		request = urllib2.Request('http://www.myvideo.de/watch/%s' % video_id)
@@ -3024,8 +3111,9 @@ class MyVideoIE(InfoExtractor):
 		video_title = mobj.group(1)
 		video_title = sanitize_title(video_title)
 
+		simple_title = _simplify_title(video_title)
+
 		try:
-			print(video_url)
 			self._downloader.process_info({
 				'id':		video_id,
 				'url':		video_url,
@@ -3043,11 +3131,8 @@ class MyVideoIE(InfoExtractor):
 class ComedyCentralIE(InfoExtractor):
 	"""Information extractor for The Daily Show and Colbert Report """
 
-	_VALID_URL = r'^(:(?Ptds|thedailyshow|cr|colbert|colbertnation|colbertreport))|(https?://)?(www\.)(?Pthedailyshow|colbertnation)\.com/full-episodes/(?P.*)$'
-
-	@staticmethod
-	def suitable(url):
-		return (re.match(ComedyCentralIE._VALID_URL, url) is not None)
+	_VALID_URL = r'^(:(?Ptds|thedailyshow|cr|colbert|colbertnation|colbertreport))|(https?://)?(www\.)?(?Pthedailyshow|colbertnation)\.com/full-episodes/(?P.*)$'
+	IE_NAME = u'comedycentral'
 
 	def report_extraction(self, episode_id):
 		self._downloader.to_screen(u'[comedycentral] %s: Extracting information' % episode_id)
@@ -3055,14 +3140,12 @@ class ComedyCentralIE(InfoExtractor):
 	def report_config_download(self, episode_id):
 		self._downloader.to_screen(u'[comedycentral] %s: Downloading configuration' % episode_id)
 
+	def report_index_download(self, episode_id):
+		self._downloader.to_screen(u'[comedycentral] %s: Downloading show index' % episode_id)
+
 	def report_player_url(self, episode_id):
 		self._downloader.to_screen(u'[comedycentral] %s: Determining player URL' % episode_id)
 
-	def _simplify_title(self, title):
-		res = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', title)
-		res = res.strip(ur'_')
-		return res
-
 	def _real_extract(self, url):
 		mobj = re.match(self._VALID_URL, url)
 		if mobj is None:
@@ -3071,9 +3154,9 @@ class ComedyCentralIE(InfoExtractor):
 
 		if mobj.group('shortname'):
 			if mobj.group('shortname') in ('tds', 'thedailyshow'):
-				url = 'http://www.thedailyshow.com/full-episodes/'
+				url = u'http://www.thedailyshow.com/full-episodes/'
 			else:
-				url = 'http://www.colbertnation.com/full-episodes/'
+				url = u'http://www.colbertnation.com/full-episodes/'
 			mobj = re.match(self._VALID_URL, url)
 			assert mobj is not None
 
@@ -3102,36 +3185,38 @@ class ComedyCentralIE(InfoExtractor):
 				return
 			epTitle = mobj.group('episode')
 
-		mMovieParams = re.findall('', html)
+		mMovieParams = re.findall('(?:[^/]+)/(?P[^/?]+)[/?]?.*$'
+	IE_NAME = u'escapist'
 
-	PostProcessor objects follow a "mutual registration" process similar
-	to InfoExtractor objects.
-	"""
+	def report_extraction(self, showName):
+		self._downloader.to_screen(u'[escapist] %s: Extracting information' % showName)
 
-	_downloader = None
+	def report_config_download(self, showName):
+		self._downloader.to_screen(u'[escapist] %s: Downloading configuration' % showName)
 
-	def __init__(self, downloader=None):
-		self._downloader = downloader
+	def _real_extract(self, url):
+		htmlParser = HTMLParser.HTMLParser()
 
-	def set_downloader(self, downloader):
-		"""Sets the downloader for this PP."""
-		self._downloader = downloader
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+		showName = mobj.group('showname')
+		videoId = mobj.group('episode')
 
-	def run(self, information):
-		"""Run the PostProcessor.
+		self.report_extraction(showName)
+		try:
+			webPage = urllib2.urlopen(url).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download webpage: ' + unicode(err))
+			return
 
-		The "information" argument is a dictionary like the ones
-		composed by InfoExtractors. The only difference is that this
-		one has an extra field called "filepath" that points to the
-		downloaded file.
+		descMatch = re.search('[0-9]+)/(?P.*)$'
+	IE_NAME = u'collegehumor'
 
-		more_opts = []
-		if self._preferredcodec == 'best' or self._preferredcodec == filecodec:
-			if filecodec == 'aac' or filecodec == 'mp3':
-				# Lossless if possible
-				acodec = 'copy'
-				extension = filecodec
-				if filecodec == 'aac':
-					more_opts = ['-f', 'adts']
+	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):
+		htmlParser = HTMLParser.HTMLParser()
+
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+		video_id = mobj.group('videoid')
+
+		self.report_webpage(video_id)
+		request = urllib2.Request(url)
+		try:
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
+			return
+
+		m = re.search(r'id="video:(?P[0-9]+)"', webpage)
+		if m is None:
+			self._downloader.trouble(u'ERROR: Cannot extract internal video ID')
+			return
+		internal_video_id = m.group('internalvideoid')
+
+		info = {
+			'id': video_id,
+			'internal_id': internal_video_id,
+		}
+
+		self.report_extraction(video_id)
+		xmlUrl = 'http://www.collegehumor.com/moogaloop/video:' + internal_video_id
+		try:
+			metaXml = urllib2.urlopen(xmlUrl).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download video info XML: %s' % str(err))
+			return
+
+		mdoc = xml.etree.ElementTree.fromstring(metaXml)
+		try:
+			videoNode = mdoc.findall('./video')[0]
+			info['description'] = videoNode.findall('./description')[0].text
+			info['title'] = videoNode.findall('./caption')[0].text
+			info['stitle'] = _simplify_title(info['title'])
+			info['url'] = videoNode.findall('./file')[0].text
+			info['thumbnail'] = videoNode.findall('./thumbnail')[0].text
+			info['ext'] = info['url'].rpartition('.')[2]
+			info['format'] = info['ext']
+		except IndexError:
+			self._downloader.trouble(u'\nERROR: Invalid metadata XML file')
+			return
+
+		self._downloader.increment_downloads()
+
+		try:
+			self._downloader.process_info(info)
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class XVideosIE(InfoExtractor):
+	"""Information extractor for xvideos.com"""
+
+	_VALID_URL = r'^(?:https?://)?(?:www\.)?xvideos\.com/video([0-9]+)(?:.*)'
+	IE_NAME = u'xvideos'
+
+	def report_webpage(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+
+	def _real_extract(self, url):
+		htmlParser = HTMLParser.HTMLParser()
+
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+		video_id = mobj.group(1).decode('utf-8')
+
+		self.report_webpage(video_id)
+
+		request = urllib2.Request(r'http://www.xvideos.com/video' + video_id)
+		try:
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
+			return
+
+		self.report_extraction(video_id)
+
+
+		# Extract video URL
+		mobj = re.search(r'flv_url=(.+?)&', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video url')
+			return
+		video_url = urllib2.unquote(mobj.group(1).decode('utf-8'))
+
+
+		# Extract title
+		mobj = re.search(r'(.*?)\s+-\s+XVID', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+
+
+		# 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.]+jpg)', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+			return
+		video_thumbnail = mobj.group(1).decode('utf-8')
+
+
+
+		self._downloader.increment_downloads()
+		info = {
+			'id': video_id,
+			'url': video_url,
+			'uploader': None,
+			'upload_date': None,
+			'title': video_title,
+			'stitle': _simplify_title(video_title),
+			'ext': 'flv',
+			'format': 'flv',
+			'thumbnail': video_thumbnail,
+			'description': None,
+			'player_url': None,
+		}
+
+		try:
+			self._downloader.process_info(info)
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'\nERROR: unable to download ' + video_id)
+
+
+class SoundcloudIE(InfoExtractor):
+	"""Information extractor for soundcloud.com
+	   To access the media, the uid of the song and a stream token
+	   must be extracted from the page source and the script must make
+	   a request to media.soundcloud.com/crossdomain.xml. Then
+	   the media can be grabbed by requesting from an url composed
+	   of the stream token and uid
+	 """
+
+	_VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/([\w\d-]+)'
+	IE_NAME = u'soundcloud'
+
+	def __init__(self, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+
+	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):
+		htmlParser = HTMLParser.HTMLParser()
+
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+
+		# extract uploader (which is in the url)
+		uploader = mobj.group(1).decode('utf-8')
+		# extract simple title (uploader + slug of song title)
+		slug_title =  mobj.group(2).decode('utf-8')
+		simple_title = uploader + '-' + slug_title
+
+		self.report_webpage('%s/%s' % (uploader, slug_title))
+
+		request = urllib2.Request('http://soundcloud.com/%s/%s' % (uploader, slug_title))
+		try:
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
+			return
+
+		self.report_extraction('%s/%s' % (uploader, slug_title))
+
+		# extract uid and stream token that soundcloud hands out for access
+		mobj = re.search('"uid":"([\w\d]+?)".*?stream_token=([\w\d]+)', webpage)
+		if mobj:
+			video_id = mobj.group(1)
+			stream_token = mobj.group(2)
+
+		# extract unsimplified title
+		mobj = re.search('"title":"(.*?)",', webpage)
+		if mobj:
+			title = mobj.group(1)
+
+		# construct media url (with uid/token)
+		mediaURL = "http://media.soundcloud.com/stream/%s?stream_token=%s"
+		mediaURL = mediaURL % (video_id, stream_token)
+
+		# description
+		description = u'No description available'
+		mobj = re.search('track-description-value">(.*?)
', webpage)
+		if mobj:
+			description = mobj.group(1)
+		
+		# upload date
+		upload_date = None
+		mobj = re.search("pretty-date'>on ([\w]+ [\d]+, [\d]+ \d+:\d+)", webpage)
+		if mobj:
+			try:
+				upload_date = datetime.datetime.strptime(mobj.group(1), '%B %d, %Y %H:%M').strftime('%Y%m%d')
+			except Exception, e:
+				print str(e)
+
+		# for soundcloud, a request to a cross domain is required for cookies
+		request = urllib2.Request('http://media.soundcloud.com/crossdomain.xml', std_headers)
+
+		try:
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		mediaURL,
+				'uploader':	uploader.decode('utf-8'),
+				'upload_date':  upload_date,
+				'title':	simple_title.decode('utf-8'),
+				'stitle':	simple_title.decode('utf-8'),
+				'ext':		u'mp3',
+				'format':	u'NA',
+				'player_url':	None,
+				'description': description.decode('utf-8')
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class InfoQIE(InfoExtractor):
+	"""Information extractor for infoq.com"""
+
+	_VALID_URL = r'^(?:https?://)?(?:www\.)?infoq\.com/[^/]+/[^/]+$'
+	IE_NAME = u'infoq'
+
+	def report_webpage(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
+
+	def _real_extract(self, url):
+		htmlParser = HTMLParser.HTMLParser()
+
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+
+		self.report_webpage(url)
+
+		request = urllib2.Request(url)
+		try:
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
+			return
+
+		self.report_extraction(url)
+
+
+		# Extract video URL
+		mobj = re.search(r"jsclassref='([^']*)'", webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video url')
+			return
+		video_url = 'rtmpe://video.infoq.com/cfx/st/' + urllib2.unquote(mobj.group(1).decode('base64'))
+
+
+		# Extract title
+		mobj = re.search(r'contentTitle = "(.*?)";', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+
+		# Extract description
+		video_description = u'No description available.'
+		mobj = re.search(r'', webpage)
+		if mobj is not None:
+			video_description = mobj.group(1).decode('utf-8')
+
+		video_filename = video_url.split('/')[-1]
+		video_id, extension = video_filename.split('.')
+
+		self._downloader.increment_downloads()
+		info = {
+			'id': video_id,
+			'url': video_url,
+			'uploader': None,
+			'upload_date': None,
+			'title': video_title,
+			'stitle': _simplify_title(video_title),
+			'ext': extension,
+			'format': extension, # Extension is always(?) mp4, but seems to be flv
+			'thumbnail': None,
+			'description': video_description,
+			'player_url': None,
+		}
+
+		try:
+			self._downloader.process_info(info)
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'\nERROR: unable to download ' + video_url)
+
+class MixcloudIE(InfoExtractor):
+	"""Information extractor for www.mixcloud.com"""
+	_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))
+
+	def get_urls(self, jsonData, fmt, bitrate='best'):
+		"""Get urls from 'audio_formats' section in json"""
+		file_url = None
+		try:
+			bitrate_list = jsonData[fmt]
+			if bitrate is None or bitrate == 'best' or bitrate not in bitrate_list:
+				bitrate = max(bitrate_list) # select highest
+
+			url_list = jsonData[fmt][bitrate]
+		except TypeError: # we have no bitrate info.
+			url_list = jsonData[fmt]
+				
+		return url_list
+
+	def check_urls(self, url_list):
+		"""Returns 1st active url from list"""
+		for url in url_list:
+			try:
+				urllib2.urlopen(url)
+				return url
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				url = None
+
+		return None
+
+	def _print_formats(self, formats):
+		print 'Available formats:'
+		for fmt in formats.keys():
+			for b in formats[fmt]:
+				try:
+					ext = formats[fmt][b][0]
+					print '%s\t%s\t[%s]' % (fmt, b, ext.split('.')[-1])
+				except TypeError: # we have no bitrate info
+					ext = formats[fmt][0]
+					print '%s\t%s\t[%s]' % (fmt, '??', ext.split('.')[-1])
+					break
+
+	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
+		# extract uploader & filename from url
+		uploader = mobj.group(1).decode('utf-8')
+		file_id = uploader + "-" + mobj.group(2).decode('utf-8')
+
+		# construct API request
+		file_url = 'http://www.mixcloud.com/api/1/cloudcast/' + '/'.join(url.split('/')[-3:-1]) + '.json'
+		# retrieve .json file with links to files
+		request = urllib2.Request(file_url)
+		try:
+			self.report_download_json(file_url)
+			jsonData = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve file: %s' % str(err))
+			return
+
+		# parse JSON
+		json_data = json.loads(jsonData)
+		player_url = json_data['player_swf_url']
+		formats = dict(json_data['audio_formats'])
+
+		req_format = self._downloader.params.get('format', None)
+		bitrate = None
+
+		if self._downloader.params.get('listformats', None):
+			self._print_formats(formats)
+			return
+
+		if req_format is None or req_format == 'best':
+			for format_param in formats.keys():
+				url_list = self.get_urls(formats, format_param)
+				# check urls
+				file_url = self.check_urls(url_list)
+				if file_url is not None:
+					break # got it!
+		else:
+			if req_format not in formats.keys():
+				self._downloader.trouble(u'ERROR: format is not available')
+				return
+
+			url_list = self.get_urls(formats, req_format)
+			file_url = self.check_urls(url_list)
+			format_param = req_format
+
+		# We have audio
+		self._downloader.increment_downloads()
+		try:
+			# Process file information
+			self._downloader.process_info({
+				'id': file_id.decode('utf-8'),
+				'url': file_url.decode('utf-8'),
+				'uploader':	uploader.decode('utf-8'),
+				'upload_date': u'NA',
+				'title': json_data['name'],
+				'stitle': _simplify_title(json_data['name']),
+				'ext': file_url.split('.')[-1].decode('utf-8'),
+				'format': (format_param is None and u'NA' or format_param.decode('utf-8')),
+				'thumbnail': json_data['thumbnail_url'],
+				'description': json_data['description'],
+				'player_url': player_url.decode('utf-8'),
+			})
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'ERROR: unable to download file')
+
+class StanfordOpenClassroomIE(InfoExtractor):
+	"""Information extractor for Stanford's Open ClassRoom"""
+
+	_VALID_URL = r'^(?:https?://)?openclassroom.stanford.edu(?P/?|(/MainFolder/(?:HomePage|CoursePage|VideoPage)\.php([?]course=(?P[^&]+)(&video=(?P