Repository: ytdl-org/youtube-dl

Issue:
typo in '-o, --output TEMPLATE' %(stitle)s should be %(title)s
Not quite sure how it was intended, but %(stitle)s doesn't ouput anything for me, and %(title)s outputs literal title.



Discussion:
`$(stitle)s` is the simplified or safe title. Since the original video title can contain characters such as slashes or backslashes, you almost certainly want stitle. If stitle is empty, but title is not, and the video's title is readable and safe on all platforms, this is a bug in the title simplification code. Can you post the exact command line that shows the problem?

It works fine for me:

```
$ youtube-dl -o 'X%(stitle)sY' http://www.youtube.com/watch?v=uHlDtZ6Oc3s
[youtube] Setting language
[youtube] uHlDtZ6Oc3s: Downloading video webpage
[youtube] uHlDtZ6Oc3s: Downloading video info webpage
[youtube] uHlDtZ6Oc3s: Extracting video information
[download] Destination: Xyoutube_dl_testvidY
```

It could be related to UTF filenames (cyrillic)

$ youtube-dl https://www.youtube.com/user/UniversalPicturesRus --format 37/22/18 --no-overwrites --quiet --output '/mnt/storage/download/%(autonumber)s-%(stitle)s.%(ext)s' --get-filename
/mnt/storage/download/00001-.mp4
/mnt/storage/download/00002-.mp4

$ youtube-dl https://www.youtube.com/user/UniversalPicturesRus --format 37/22/18 --no-overwrites --quiet --output '/mnt/storage/download/%(autonumber)s-%(title)s.%(ext)s' --get-filename
/mnt/storage/download/00001-Схватка. Русский трейлер.mp4
/mnt/storage/download/00002-Американский пирог. Все в сборе. Русский трейлер.mp4

I'll have a look at the simplification code. It should be generalized across all IEs anyways.


Resolving patch:
diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
new file mode 100755
--- /dev/null
+++ b/youtube_dl/__init__.py
@@ -0,0 +1,4188 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+__author__  = (
+	'Ricardo Garcia Gonzalez',
+	'Danny Colligan',
+	'Benjamin Johnson',
+	'Vasyl\' Vavrychuk',
+	'Witold Baryluk',
+	'Paweł Paprota',
+	'Gergely Imreh',
+	'Rogério Brito',
+	'Philipp Hagemeister',
+	'Sören Schulze',
+	'Kevin Ngo',
+	'Ori Avtalion',
+	)
+
+__license__ = 'Public Domain'
+__version__ = '2011.11.21'
+
+UPDATE_URL = 'https://raw.github.com/rg3/youtube-dl/master/youtube-dl'
+
+import cookielib
+import datetime
+import gzip
+import htmlentitydefs
+import HTMLParser
+import httplib
+import locale
+import math
+import netrc
+import os
+import os.path
+import re
+import socket
+import string
+import subprocess
+import sys
+import time
+import urllib
+import urllib2
+import warnings
+import zlib
+
+if os.name == 'nt':
+	import ctypes
+
+try:
+	import email.utils
+except ImportError: # Python 2.4
+	import email.Utils
+try:
+	import cStringIO as StringIO
+except ImportError:
+	import StringIO
+
+# parse_qs was moved from the cgi module to the urlparse module recently.
+try:
+	from urlparse import parse_qs
+except ImportError:
+	from cgi import parse_qs
+
+try:
+	import lxml.etree
+except ImportError:
+	pass # Handled below
+
+try:
+	import xml.etree.ElementTree
+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',
+	'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
+	'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+	'Accept-Encoding': 'gzip, deflate',
+	'Accept-Language': 'en-us,en;q=0.5',
+}
+
+try:
+	import json
+except ImportError: # Python <2.6, use trivialjson (https://github.com/phihag/trivialjson):
+	import re
+	class json(object):
+		@staticmethod
+		def loads(s):
+			s = s.decode('UTF-8')
+			def raiseError(msg, i):
+				raise ValueError(msg + ' at position ' + str(i) + ' of ' + repr(s) + ': ' + repr(s[i:]))
+			def skipSpace(i, expectMore=True):
+				while i < len(s) and s[i] in ' \t\r\n':
+					i += 1
+				if expectMore:
+					if i >= len(s):
+						raiseError('Premature end', i)
+				return i
+			def decodeEscape(match):
+				esc = match.group(1)
+				_STATIC = {
+					'"': '"',
+					'\\': '\\',
+					'/': '/',
+					'b': unichr(0x8),
+					'f': unichr(0xc),
+					'n': '\n',
+					'r': '\r',
+					't': '\t',
+				}
+				if esc in _STATIC:
+					return _STATIC[esc]
+				if esc[0] == 'u':
+					if len(esc) == 1+4:
+						return unichr(int(esc[1:5], 16))
+					if len(esc) == 5+6 and esc[5:7] == '\\u':
+						hi = int(esc[1:5], 16)
+						low = int(esc[7:11], 16)
+						return unichr((hi - 0xd800) * 0x400 + low - 0xdc00 + 0x10000)
+				raise ValueError('Unknown escape ' + str(esc))
+			def parseString(i):
+				i += 1
+				e = i
+				while True:
+					e = s.index('"', e)
+					bslashes = 0
+					while s[e-bslashes-1] == '\\':
+						bslashes += 1
+					if bslashes % 2 == 1:
+						e += 1
+						continue
+					break
+				rexp = re.compile(r'\\(u[dD][89aAbB][0-9a-fA-F]{2}\\u[0-9a-fA-F]{4}|u[0-9a-fA-F]{4}|.|$)')
+				stri = rexp.sub(decodeEscape, s[i:e])
+				return (e+1,stri)
+			def parseObj(i):
+				i += 1
+				res = {}
+				i = skipSpace(i)
+				if s[i] == '}': # Empty dictionary
+					return (i+1,res)
+				while True:
+					if s[i] != '"':
+						raiseError('Expected a string object key', i)
+					i,key = parseString(i)
+					i = skipSpace(i)
+					if i >= len(s) or s[i] != ':':
+						raiseError('Expected a colon', i)
+					i,val = parse(i+1)
+					res[key] = val
+					i = skipSpace(i)
+					if s[i] == '}':
+						return (i+1, res)
+					if s[i] != ',':
+						raiseError('Expected comma or closing curly brace', i)
+					i = skipSpace(i+1)
+			def parseArray(i):
+				res = []
+				i = skipSpace(i+1)
+				if s[i] == ']': # Empty array
+					return (i+1,res)
+				while True:
+					i,val = parse(i)
+					res.append(val)
+					i = skipSpace(i) # Raise exception if premature end
+					if s[i] == ']':
+						return (i+1, res)
+					if s[i] != ',':
+						raiseError('Expected a comma or closing bracket', i)
+					i = skipSpace(i+1)
+			def parseDiscrete(i):
+				for k,v in {'true': True, 'false': False, 'null': None}.items():
+					if s.startswith(k, i):
+						return (i+len(k), v)
+				raiseError('Not a boolean (or null)', i)
+			def parseNumber(i):
+				mobj = re.match('^(-?(0|[1-9][0-9]*)(\.[0-9]*)?([eE][+-]?[0-9]+)?)', s[i:])
+				if mobj is None:
+					raiseError('Not a number', i)
+				nums = mobj.group(1)
+				if '.' in nums or 'e' in nums or 'E' in nums:
+					return (i+len(nums), float(nums))
+				return (i+len(nums), int(nums))
+			CHARMAP = {'{': parseObj, '[': parseArray, '"': parseString, 't': parseDiscrete, 'f': parseDiscrete, 'n': parseDiscrete}
+			def parse(i):
+				i = skipSpace(i)
+				i,res = CHARMAP.get(s[i], parseNumber)(i)
+				i = skipSpace(i, False)
+				return (i,res)
+			i,res = parse(0)
+			if i < len(s):
+				raise ValueError('Extra data at end of input (index ' + str(i) + ' of ' + repr(s) + ': ' + repr(s[i:]) + ')')
+			return res
+
+def preferredencoding():
+	"""Get preferred encoding.
+
+	Returns the best encoding scheme for the system, based on
+	locale.getpreferredencoding() and some further tweaks.
+	"""
+	def yield_preferredencoding():
+		try:
+			pref = locale.getpreferredencoding()
+			u'TEST'.encode(pref)
+		except:
+			pref = 'UTF-8'
+		while True:
+			yield pref
+	return yield_preferredencoding().next()
+
+
+def htmlentity_transform(matchobj):
+	"""Transforms an HTML entity to a Unicode character.
+
+	This function receives a match object and is intended to be used with
+	the re.sub() function.
+	"""
+	entity = matchobj.group(1)
+
+	# Known non-numeric HTML entity
+	if entity in htmlentitydefs.name2codepoint:
+		return unichr(htmlentitydefs.name2codepoint[entity])
+
+	# Unicode character
+	mobj = re.match(ur'(?u)#(x?\d+)', entity)
+	if mobj is not None:
+		numstr = mobj.group(1)
+		if numstr.startswith(u'x'):
+			base = 16
+			numstr = u'0%s' % numstr
+		else:
+			base = 10
+		return unichr(long(numstr, base))
+
+	# Unknown entity in name, return its literal representation
+	return (u'&%s;' % entity)
+
+
+def sanitize_title(utitle):
+	"""Sanitizes a video title so it could be used as part of a filename."""
+	utitle = re.sub(ur'(?u)&(.+?);', htmlentity_transform, utitle)
+	return utitle.replace(unicode(os.sep), u'%')
+
+
+def sanitize_open(filename, open_mode):
+	"""Try to open the given filename, and slightly tweak it if this fails.
+
+	Attempts to open the given filename. If this fails, it tries to change
+	the filename slightly, step by step, until it's either able to open it
+	or it fails and raises a final exception, like the standard open()
+	function.
+
+	It returns the tuple (stream, definitive_file_name).
+	"""
+	try:
+		if filename == u'-':
+			if sys.platform == 'win32':
+				import msvcrt
+				msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
+			return (sys.stdout, filename)
+		stream = open(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)
+		return (stream, filename)
+
+
+def timeconvert(timestr):
+	"""Convert RFC 2822 defined time string into system timestamp"""
+	timestamp = None
+	timetuple = email.utils.parsedate_tz(timestr)
+	if timetuple is not None:
+		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'_')
+
+class DownloadError(Exception):
+	"""Download Error exception.
+
+	This exception may be thrown by FileDownloader objects if they are not
+	configured to continue on errors. They will contain the appropriate
+	error message.
+	"""
+	pass
+
+
+class SameFileError(Exception):
+	"""Same File exception.
+
+	This exception will be thrown by FileDownloader objects if they detect
+	multiple files would have to be downloaded to the same file on disk.
+	"""
+	pass
+
+
+class PostProcessingError(Exception):
+	"""Post Processing exception.
+
+	This exception may be raised by PostProcessor's .run() method to
+	indicate an error in the postprocessing task.
+	"""
+	pass
+
+
+class UnavailableVideoError(Exception):
+	"""Unavailable Format exception.
+
+	This exception will be thrown when a video is requested
+	in a format that is not available for that video.
+	"""
+	pass
+
+
+class ContentTooShortError(Exception):
+	"""Content Too Short exception.
+
+	This exception may be raised by FileDownloader objects when a file they
+	download is too small for what the server announced first, indicating
+	the connection was probably interrupted.
+	"""
+	# Both in bytes
+	downloaded = None
+	expected = None
+
+	def __init__(self, downloaded, expected):
+		self.downloaded = downloaded
+		self.expected = expected
+
+
+class YoutubeDLHandler(urllib2.HTTPHandler):
+	"""Handler for HTTP requests and responses.
+
+	This class, when installed with an OpenerDirector, automatically adds
+	the standard headers to every HTTP request and handles gzipped and
+	deflated responses from web servers. If compression is to be avoided in
+	a particular request, the original request in the program code only has
+	to include the HTTP header "Youtubedl-No-Compression", which will be
+	removed before making the real request.
+
+	Part of this code was copied from:
+
+	http://techknack.net/python-urllib2-handlers/
+
+	Andrew Rowls, the author of that code, agreed to release it to the
+	public domain.
+	"""
+
+	@staticmethod
+	def deflate(data):
+		try:
+			return zlib.decompress(data, -zlib.MAX_WBITS)
+		except zlib.error:
+			return zlib.decompress(data)
+
+	@staticmethod
+	def addinfourl_wrapper(stream, headers, url, code):
+		if hasattr(urllib2.addinfourl, 'getcode'):
+			return urllib2.addinfourl(stream, headers, url, code)
+		ret = urllib2.addinfourl(stream, headers, url)
+		ret.code = code
+		return ret
+
+	def http_request(self, req):
+		for h in std_headers:
+			if h in req.headers:
+				del req.headers[h]
+			req.add_header(h, std_headers[h])
+		if 'Youtubedl-no-compression' in req.headers:
+			if 'Accept-encoding' in req.headers:
+				del req.headers['Accept-encoding']
+			del req.headers['Youtubedl-no-compression']
+		return req
+
+	def http_response(self, req, resp):
+		old_resp = resp
+		# gzip
+		if resp.headers.get('Content-encoding', '') == 'gzip':
+			gz = gzip.GzipFile(fileobj=StringIO.StringIO(resp.read()), mode='r')
+			resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+			resp.msg = old_resp.msg
+		# deflate
+		if resp.headers.get('Content-encoding', '') == 'deflate':
+			gz = StringIO.StringIO(self.deflate(resp.read()))
+			resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+			resp.msg = old_resp.msg
+		return resp
+
+
+class FileDownloader(object):
+	"""File Downloader class.
+
+	File downloader objects are the ones responsible of downloading the
+	actual video file and writing it to disk if the user has requested
+	it, among some other tasks. In most cases there should be one per
+	program. As, given a video URL, the downloader doesn't know how to
+	extract all the needed information, task that InfoExtractors do, it
+	has to pass the URL to one of them.
+
+	For this, file downloader objects have a method that allows
+	InfoExtractors to be registered in a given order. When it is passed
+	a URL, the file downloader handles it to the first InfoExtractor it
+	finds that reports being able to handle it. The InfoExtractor extracts
+	all the information about the video or videos the URL refers to, and
+	asks the FileDownloader to process the video information, possibly
+	downloading the video.
+
+	File downloaders accept a lot of parameters. In order not to saturate
+	the object constructor with arguments, it receives a dictionary of
+	options instead. These options are available through the params
+	attribute for the InfoExtractors to use. The FileDownloader also
+	registers itself as the downloader in charge for the InfoExtractors
+	that are added to it, so this is a "mutual registration".
+
+	Available options:
+
+	username:         Username for authentication purposes.
+	password:         Password for authentication purposes.
+	usenetrc:         Use netrc for authentication instead.
+	quiet:            Do not print messages to stdout.
+	forceurl:         Force printing final URL.
+	forcetitle:       Force printing title.
+	forcethumbnail:   Force printing thumbnail URL.
+	forcedescription: Force printing description.
+	forcefilename:    Force printing final filename.
+	simulate:         Do not download the video files.
+	format:           Video format code.
+	format_limit:     Highest quality format to try.
+	outtmpl:          Template for output names.
+	ignoreerrors:     Do not stop on download errors.
+	ratelimit:        Download speed limit, in bytes/sec.
+	nooverwrites:     Prevent overwriting files.
+	retries:          Number of times to retry for HTTP error 5xx
+	continuedl:       Try to continue downloads if possible.
+	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.
+	updatetime:       Use the Last-modified header to set output file timestamps.
+	writedescription: Write the video description to a .description file
+	writeinfojson:    Write the video description to a .info.json file
+	"""
+
+	params = None
+	_ies = []
+	_pps = []
+	_download_retcode = None
+	_num_downloads = None
+	_screen_file = None
+
+	def __init__(self, params):
+		"""Create a FileDownloader object with the given options."""
+		self._ies = []
+		self._pps = []
+		self._download_retcode = 0
+		self._num_downloads = 0
+		self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)]
+		self.params = params
+
+	@staticmethod
+	def format_bytes(bytes):
+		if bytes is None:
+			return 'N/A'
+		if type(bytes) is str:
+			bytes = float(bytes)
+		if bytes == 0.0:
+			exponent = 0
+		else:
+			exponent = long(math.log(bytes, 1024.0))
+		suffix = 'bkMGTPEZY'[exponent]
+		converted = float(bytes) / float(1024 ** exponent)
+		return '%.2f%s' % (converted, suffix)
+
+	@staticmethod
+	def calc_percent(byte_counter, data_len):
+		if data_len is None:
+			return '---.-%'
+		return '%6s' % ('%3.1f%%' % (float(byte_counter) / float(data_len) * 100.0))
+
+	@staticmethod
+	def calc_eta(start, now, total, current):
+		if total is None:
+			return '--:--'
+		dif = now - start
+		if current == 0 or dif < 0.001: # One millisecond
+			return '--:--'
+		rate = float(current) / dif
+		eta = long((float(total) - float(current)) / rate)
+		(eta_mins, eta_secs) = divmod(eta, 60)
+		if eta_mins > 99:
+			return '--:--'
+		return '%02d:%02d' % (eta_mins, eta_secs)
+
+	@staticmethod
+	def calc_speed(start, now, bytes):
+		dif = now - start
+		if bytes == 0 or dif < 0.001: # One millisecond
+			return '%10s' % '---b/s'
+		return '%10s' % ('%s/s' % FileDownloader.format_bytes(float(bytes) / dif))
+
+	@staticmethod
+	def best_block_size(elapsed_time, bytes):
+		new_min = max(bytes / 2.0, 1.0)
+		new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB
+		if elapsed_time < 0.001:
+			return long(new_max)
+		rate = bytes / elapsed_time
+		if rate > new_max:
+			return long(new_max)
+		if rate < new_min:
+			return long(new_min)
+		return long(rate)
+
+	@staticmethod
+	def parse_bytes(bytestr):
+		"""Parse a string indicating a byte quantity into a long integer."""
+		matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr)
+		if matchobj is None:
+			return None
+		number = float(matchobj.group(1))
+		multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower())
+		return long(round(number * multiplier))
+
+	def add_info_extractor(self, ie):
+		"""Add an InfoExtractor object to the end of the list."""
+		self._ies.append(ie)
+		ie.set_downloader(self)
+
+	def add_post_processor(self, pp):
+		"""Add a PostProcessor object to the end of the chain."""
+		self._pps.append(pp)
+		pp.set_downloader(self)
+
+	def to_screen(self, message, skip_eol=False, ignore_encoding_errors=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()),
+			self._screen_file.flush()
+		except (UnicodeEncodeError), err:
+			if not ignore_encoding_errors:
+				raise
+
+	def to_stderr(self, message):
+		"""Print message to stderr."""
+		print >>sys.stderr, message.encode(preferredencoding())
+
+	def to_cons_title(self, message):
+		"""Set console/terminal window title to message."""
+		if not self.params.get('consoletitle', False):
+			return
+		if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow():
+			# c_wchar_p() might not be necessary if `message` is
+			# already of type unicode()
+			ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
+		elif 'TERM' in os.environ:
+			sys.stderr.write('\033]0;%s\007' % message.encode(preferredencoding()))
+
+	def fixed_template(self):
+		"""Checks if the output template is fixed."""
+		return (re.search(ur'(?u)%\(.+?\)s', self.params['outtmpl']) is None)
+
+	def trouble(self, message=None):
+		"""Determine action to take when a download problem appears.
+
+		Depending on if the downloader has been configured to ignore
+		download errors or not, this method may throw an exception or
+		not when errors are found, after printing the message.
+		"""
+		if message is not None:
+			self.to_stderr(message)
+		if not self.params.get('ignoreerrors', False):
+			raise DownloadError(message)
+		self._download_retcode = 1
+
+	def slow_down(self, start_time, byte_counter):
+		"""Sleep if the download speed is over the rate limit."""
+		rate_limit = self.params.get('ratelimit', None)
+		if rate_limit is None or byte_counter == 0:
+			return
+		now = time.time()
+		elapsed = now - start_time
+		if elapsed <= 0.0:
+			return
+		speed = float(byte_counter) / elapsed
+		if speed > rate_limit:
+			time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit)
+
+	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)):
+			return filename
+		return filename + u'.part'
+
+	def undo_temp_name(self, filename):
+		if filename.endswith(u'.part'):
+			return filename[:-len(u'.part')]
+		return filename
+
+	def try_rename(self, old_filename, new_filename):
+		try:
+			if old_filename == new_filename:
+				return
+			os.rename(old_filename, new_filename)
+		except (IOError, OSError), err:
+			self.trouble(u'ERROR: unable to rename file')
+
+	def try_utime(self, filename, last_modified_hdr):
+		"""Try to set the last-modified time of the given file."""
+		if last_modified_hdr is None:
+			return
+		if not os.path.isfile(filename):
+			return
+		timestr = last_modified_hdr
+		if timestr is None:
+			return
+		filetime = timeconvert(timestr)
+		if filetime is None:
+			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)
+
+	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)
+
+	def report_destination(self, filename):
+		"""Report destination filename."""
+		self.to_screen(u'[download] Destination: %s' % filename, ignore_encoding_errors=True)
+
+	def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
+		"""Report download progress."""
+		if self.params.get('noprogress', False):
+			return
+		self.to_screen(u'\r[download] %s of %s at %s ETA %s' %
+				(percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
+		self.to_cons_title(u'youtube-dl - %s of %s at %s ETA %s' %
+				(percent_str.strip(), data_len_str.strip(), speed_str.strip(), eta_str.strip()))
+
+	def report_resuming_byte(self, resume_len):
+		"""Report attempt to resume at given byte."""
+		self.to_screen(u'[download] Resuming download at byte %s' % resume_len)
+
+	def report_retry(self, count, retries):
+		"""Report retry in case of HTTP error 5xx"""
+		self.to_screen(u'[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries))
+
+	def report_file_already_downloaded(self, file_name):
+		"""Report file has already been fully downloaded."""
+		try:
+			self.to_screen(u'[download] %s has already been downloaded' % file_name)
+		except (UnicodeEncodeError), err:
+			self.to_screen(u'[download] The file has already been downloaded')
+
+	def report_unable_to_resume(self):
+		"""Report it was impossible to resume download."""
+		self.to_screen(u'[download] Unable to resume')
+
+	def report_finish(self):
+		"""Report download finished."""
+		if self.params.get('noprogress', False):
+			self.to_screen(u'[download] Download completed')
+		else:
+			self.to_screen(u'')
+
+	def increment_downloads(self):
+		"""Increment the ordinal that assigns a number to each file."""
+		self._num_downloads += 1
+
+	def prepare_filename(self, info_dict):
+		"""Generate the output filename."""
+		try:
+			template_dict = dict(info_dict)
+			template_dict['epoch'] = unicode(long(time.time()))
+			template_dict['autonumber'] = unicode('%05d' % self._num_downloads)
+			filename = self.params['outtmpl'] % template_dict
+			return filename
+		except (ValueError, KeyError), err:
+			self.trouble(u'ERROR: invalid system charset or erroneous output template')
+			return None
+
+	def process_info(self, info_dict):
+		"""Process a single dictionary returned by an InfoExtractor."""
+		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):
+			return
+
+		if filename is None:
+			return
+
+		matchtitle=self.params.get('matchtitle',False)
+		rejecttitle=self.params.get('rejecttitle',False)
+		title=info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace')
+		if matchtitle and not re.search(matchtitle, title, re.IGNORECASE):
+			self.to_screen(u'[download] "%s" title did not match pattern "%s"' % (title, matchtitle))
+			return
+		if rejecttitle and re.search(rejecttitle, title, re.IGNORECASE):
+			self.to_screen(u'[download] "%s" title matched reject pattern "%s"' % (title, rejecttitle))
+			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):
+				os.makedirs(dn)
+		except (OSError, IOError), err:
+			self.trouble(u'ERROR: unable to create directory ' + unicode(err))
+			return
+
+		if self.params.get('writedescription', False):
+			try:
+				descfn = filename + '.description'
+				self.report_writedescription(descfn)
+				descfile = open(descfn, 'wb')
+				try:
+					descfile.write(info_dict['description'].encode('utf-8'))
+				finally:
+					descfile.close()
+			except (OSError, IOError):
+				self.trouble(u'ERROR: Cannot write description file ' + descfn)
+				return
+
+		if self.params.get('writeinfojson', False):
+			infofn = filename + '.info.json'
+			self.report_writeinfojson(infofn)
+			try:
+				json.dump
+			except (NameError,AttributeError):
+				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')
+				try:
+					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
+
+		if not self.params.get('skip_download', False):
+			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."""
+		if len(url_list) > 1 and self.fixed_template():
+			raise SameFileError(self.params['outtmpl'])
+
+		for url in url_list:
+			suitable_found = False
+			for ie in self._ies:
+				# Go to next InfoExtractor if not suitable
+				if not ie.suitable(url):
+					continue
+
+				# Suitable InfoExtractor found
+				suitable_found = True
+
+				# Extract information from URL and process it
+				ie.extract(url)
+
+				# Suitable InfoExtractor had been found; go to next URL
+				break
+
+			if not suitable_found:
+				self.trouble(u'ERROR: no suitable InfoExtractor: %s' % url)
+
+		return self._download_retcode
+
+	def post_process(self, filename, ie_info):
+		"""Run the postprocessing chain on the given file."""
+		info = dict(ie_info)
+		info['filepath'] = filename
+		for pp in self._pps:
+			info = pp.run(info)
+			if info is None:
+				break
+
+	def _download_with_rtmpdump(self, filename, url, player_url):
+		self.report_destination(filename)
+		tmpfilename = self.temp_name(filename)
+
+		# Check for rtmpdump first
+		try:
+			subprocess.call(['rtmpdump', '-h'], stdout=(file(os.path.devnull, 'w')), stderr=subprocess.STDOUT)
+		except (OSError, IOError):
+			self.trouble(u'ERROR: RTMP download detected but "rtmpdump" could not be run')
+			return False
+
+		# 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', '-q'] + [[], ['-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)])
+		while retval == 2 or retval == 1:
+			prevsize = os.path.getsize(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)
+			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.try_rename(tmpfilename, filename)
+			return True
+		else:
+			self.trouble(u'\nERROR: rtmpdump exited with code %d' % retval)
+			return False
+
+	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):
+			self.report_file_already_downloaded(filename)
+			return True
+
+		# Attempt to download using rtmpdump
+		if url.startswith('rtmp'):
+			return self._download_with_rtmpdump(filename, url, player_url)
+
+		tmpfilename = self.temp_name(filename)
+		stream = None
+
+		# Do not include the Accept-Encoding header
+		headers = {'Youtubedl-no-compression': 'True'}
+		basic_request = urllib2.Request(url, None, headers)
+		request = urllib2.Request(url, None, headers)
+
+		# Establish possible resume length
+		if os.path.isfile(tmpfilename):
+			resume_len = os.path.getsize(tmpfilename)
+		else:
+			resume_len = 0
+
+		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:
+				if (err.code < 500 or err.code >= 600) and err.code != 416:
+					# Unexpected HTTP error
+					raise
+				elif err.code == 416:
+					# Unable to resume (requested range not satisfiable)
+					try:
+						# Open the connection again without the range header
+						data = urllib2.urlopen(basic_request)
+						content_length = data.info()['Content-Length']
+					except (urllib2.HTTPError, ), err:
+						if err.code < 500 or err.code >= 600:
+							raise
+					else:
+						# Examine the reported length
+						if (content_length is not None and
+								(resume_len - 100 < long(content_length) < resume_len + 100)):
+							# The file had already been fully downloaded.
+							# Explanation to the above condition: in issue #175 it was revealed that
+							# YouTube sometimes adds or removes a few bytes from the end of the file,
+							# changing the file size slightly and causing problems for some users. So
+							# I decided to implement a suggested change and consider the file
+							# completely downloaded if the file size differs less than 100 bytes from
+							# the one in the hard drive.
+							self.report_file_already_downloaded(filename)
+							self.try_rename(tmpfilename, filename)
+							return True
+						else:
+							# The length does not match, we start the download over
+							self.report_unable_to_resume()
+							open_mode = 'wb'
+							break
+			# Retry
+			count += 1
+			if count <= retries:
+				self.report_retry(count, retries)
+
+		if count > retries:
+			self.trouble(u'ERROR: giving up after %s retries' % retries)
+			return False
+
+		data_len = data.info().get('Content-length', None)
+		if data_len is not None:
+			data_len = long(data_len) + resume_len
+		data_len_str = self.format_bytes(data_len)
+		byte_counter = 0 + resume_len
+		block_size = 1024
+		start = time.time()
+		while True:
+			# Download and write
+			before = time.time()
+			data_block = data.read(block_size)
+			after = time.time()
+			if len(data_block) == 0:
+				break
+			byte_counter += len(data_block)
+
+			# Open file just in time
+			if stream is None:
+				try:
+					(stream, tmpfilename) = sanitize_open(tmpfilename, open_mode)
+					assert stream is not None
+					filename = self.undo_temp_name(tmpfilename)
+					self.report_destination(filename)
+				except (OSError, IOError), err:
+					self.trouble(u'ERROR: unable to open for writing: %s' % str(err))
+					return False
+			try:
+				stream.write(data_block)
+			except (IOError, OSError), err:
+				self.trouble(u'\nERROR: unable to write data: %s' % str(err))
+				return False
+			block_size = self.best_block_size(after - before, len(data_block))
+
+			# Progress message
+			speed_str = self.calc_speed(start, time.time(), byte_counter - resume_len)
+			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)
+
+		if stream is None:
+			self.trouble(u'\nERROR: Did not get any data blocks')
+			return False
+		stream.close()
+		self.report_finish()
+		if data_len is not None and byte_counter != data_len:
+			raise ContentTooShortError(byte_counter, long(data_len))
+		self.try_rename(tmpfilename, filename)
+
+		# Update file modification time
+		if self.params.get('updatetime', True):
+			info_dict['filetime'] = self.try_utime(filename, data.info().get('last-modified', None))
+
+		return True
+
+
+class InfoExtractor(object):
+	"""Information Extractor class.
+
+	Information extractors are the classes that, given a URL, extract
+	information from the video (or videos) the URL refers to. This
+	information includes the real video URL, the video title and simplified
+	title, author and others. The information is stored in a dictionary
+	which is then passed to the FileDownloader. The FileDownloader
+	processes this information possibly downloading the video to the file
+	system, among other possible outcomes. The dictionaries must include
+	the following fields:
+
+	id:		Video identifier.
+	url:		Final video URL.
+	uploader:	Nickname of the video uploader.
+	title:		Literal title.
+	stitle:		Simplified title.
+	ext:		Video filename extension.
+	format:		Video format.
+	player_url:	SWF Player URL (may be None).
+
+	The following fields are optional. Their primary purpose is to allow
+	youtube-dl to serve as the backend for a video search function, such
+	as the one in youtube2mp3.  They are only used when their respective
+	forced printing functions are called:
+
+	thumbnail:	Full URL to a video thumbnail image.
+	description:	One-line video description.
+
+	Subclasses of this one should re-define the _real_initialize() and
+	_real_extract() methods and define a _VALID_URL regexp.
+	Probably, they should also be added to the list of extractors.
+	"""
+
+	_ready = False
+	_downloader = None
+
+	def __init__(self, downloader=None):
+		"""Constructor. Receives an optional downloader."""
+		self._ready = False
+		self.set_downloader(downloader)
+
+	def suitable(self, url):
+		"""Receives a URL and returns True if suitable for this IE."""
+		return re.match(self._VALID_URL, url) is not None
+
+	def initialize(self):
+		"""Initializes an instance (authentication, etc)."""
+		if not self._ready:
+			self._real_initialize()
+			self._ready = True
+
+	def extract(self, url):
+		"""Extracts URL information and returns it in list of dicts."""
+		self.initialize()
+		return self._real_extract(url)
+
+	def set_downloader(self, downloader):
+		"""Sets the downloader for this IE."""
+		self._downloader = downloader
+
+	def _real_initialize(self):
+		"""Real initialization process. Redefine in subclasses."""
+		pass
+
+	def _real_extract(self, url):
+		"""Real extraction process. Redefine in subclasses."""
+		pass
+
+
+class YoutubeIE(InfoExtractor):
+	"""Information extractor for youtube.com."""
+
+	_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', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
+	_video_extensions = {
+		'13': '3gp',
+		'17': 'mp4',
+		'18': 'mp4',
+		'22': 'mp4',
+		'37': 'mp4',
+		'38': 'video', # You actually don't know if this will be MOV, AVI or whatever
+		'43': 'webm',
+		'44': 'webm',
+		'45': 'webm',
+	}
+	_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."""
+		self._downloader.to_screen(u'[youtube] Setting language')
+
+	def report_login(self):
+		"""Report attempt to log in."""
+		self._downloader.to_screen(u'[youtube] Logging in')
+
+	def report_age_confirmation(self):
+		"""Report attempt to confirm age."""
+		self._downloader.to_screen(u'[youtube] Confirming age')
+
+	def report_video_webpage_download(self, video_id):
+		"""Report attempt to download video webpage."""
+		self._downloader.to_screen(u'[youtube] %s: Downloading video webpage' % video_id)
+
+	def report_video_info_webpage_download(self, video_id):
+		"""Report attempt to download video info webpage."""
+		self._downloader.to_screen(u'[youtube] %s: Downloading video info webpage' % video_id)
+
+	def report_information_extraction(self, video_id):
+		"""Report attempt to extract video information."""
+		self._downloader.to_screen(u'[youtube] %s: Extracting video information' % video_id)
+
+	def report_unavailable_format(self, video_id, format):
+		"""Report extracted video URL."""
+		self._downloader.to_screen(u'[youtube] %s: Format %s not available' % (video_id, format))
+
+	def report_rtmp_download(self):
+		"""Indicate the download will use the RTMP protocol."""
+		self._downloader.to_screen(u'[youtube] RTMP download detected')
+
+	def _print_formats(self, formats):
+		print 'Available formats:'
+		for x in formats:
+			print '%s\t:\t%s\t[%s]' %(x, self._video_extensions.get(x, 'flv'), self._video_dimensions.get(x, '???'))
+
+	def _real_initialize(self):
+		if self._downloader is None:
+			return
+
+		username = None
+		password = None
+		downloader_params = self._downloader.params
+
+		# Attempt to use provided username and password or .netrc data
+		if downloader_params.get('username', None) is not None:
+			username = downloader_params['username']
+			password = downloader_params['password']
+		elif downloader_params.get('usenetrc', False):
+			try:
+				info = netrc.netrc().authenticators(self._NETRC_MACHINE)
+				if info is not None:
+					username = info[0]
+					password = info[2]
+				else:
+					raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
+			except (IOError, netrc.NetrcParseError), err:
+				self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
+				return
+
+		# Set language
+		request = urllib2.Request(self._LANG_URL)
+		try:
+			self.report_lang()
+			urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.to_stderr(u'WARNING: unable to set language: %s' % str(err))
+			return
+
+		# No authentication to be performed
+		if username is None:
+			return
+
+		# Log in
+		login_form = {
+				'current_form': 'loginForm',
+				'next':		'/',
+				'action_login':	'Log In',
+				'username':	username,
+				'password':	password,
+				}
+		request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
+		try:
+			self.report_login()
+			login_results = urllib2.urlopen(request).read()
+			if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
+				self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
+				return
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
+			return
+
+		# Confirm age
+		age_form = {
+				'next_url':		'/',
+				'action_confirm':	'Confirm',
+				}
+		request = urllib2.Request(self._AGE_URL, urllib.urlencode(age_form))
+		try:
+			self.report_age_confirmation()
+			age_results = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to confirm age: %s' % str(err))
+			return
+
+	def _real_extract(self, url):
+		# Extract video id from URL
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+		video_id = mobj.group(2)
+
+		# 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)
+		try:
+			video_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
+
+		# Attempt to extract SWF player URL
+		mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
+		if mobj is not None:
+			player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
+		else:
+			player_url = None
+
+		# Get video info
+		self.report_video_info_webpage_download(video_id)
+		for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
+			video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
+					% (video_id, el_type))
+			request = urllib2.Request(video_info_url)
+			try:
+				video_info_webpage = urllib2.urlopen(request).read()
+				video_info = parse_qs(video_info_webpage)
+				if 'token' in video_info:
+					break
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
+				return
+		if 'token' not in video_info:
+			if 'reason' in video_info:
+				self._downloader.trouble(u'ERROR: YouTube said: %s' % video_info['reason'][0].decode('utf-8'))
+			else:
+				self._downloader.trouble(u'ERROR: "token" parameter not in video info for unknown reason')
+			return
+
+		# Start extracting information
+		self.report_information_extraction(video_id)
+
+		# uploader
+		if 'author' not in video_info:
+			self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+			return
+		video_uploader = urllib.unquote_plus(video_info['author'][0])
+
+		# title
+		if 'title' not in video_info:
+			self._downloader.trouble(u'ERROR: unable to extract video title')
+			return
+		video_title = urllib.unquote_plus(video_info['title'][0])
+		video_title = video_title.decode('utf-8')
+		video_title = sanitize_title(video_title)
+
+		# simplified title
+		simple_title = _simplify_title(video_title)
+
+		# thumbnail image
+		if 'thumbnail_url' not in video_info:
+			self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
+			video_thumbnail = ''
+		else:	# don't panic if we can't find it
+			video_thumbnail = urllib.unquote_plus(video_info['thumbnail_url'][0])
+
+		# upload date
+		upload_date = u'NA'
+		mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
+		if mobj is not None:
+			upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
+			format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y']
+			for expression in format_expressions:
+				try:
+					upload_date = datetime.datetime.strptime(upload_date, expression).strftime('%Y%m%d')
+				except:
+					pass
+
+		# description
+		try:
+			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'<meta name="description" content="(.*)"(?:\s*/)?>', 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)
+			video_description = u''.join(vwebpage_doc.xpath('id("eow-description")//text()'))
+			# TODO use another parser
+
+		# token
+		video_token = urllib.unquote_plus(video_info['token'][0])
+
+		# Decide which formats to download
+		req_format = self._downloader.params.get('format', None)
+
+		if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
+			self.report_rtmp_download()
+			video_url_list = [(None, video_info['conn'][0])]
+		elif 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
+			url_data_strs = video_info['url_encoded_fmt_stream_map'][0].split(',')
+			url_data = [parse_qs(uds) for uds in url_data_strs]
+			url_data = filter(lambda ud: 'itag' in ud and 'url' in ud, url_data)
+			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):]
+			else:
+				format_list = self._available_formats
+			existing_formats = [x for x in format_list if x in url_map]
+			if len(existing_formats) == 0:
+				self._downloader.trouble(u'ERROR: no known formats available for video')
+				return
+			if self._downloader.params.get('listformats', None):
+				self._print_formats(existing_formats)
+				return
+			if req_format is None or req_format == 'best':
+				video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
+			elif req_format == 'worst':
+				video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
+			elif req_format in ('-1', 'all'):
+				video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
+			else:
+				# Specific formats. We pick the first in a slash-delimeted sequence.
+				# For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
+				req_formats = req_format.split('/')
+				video_url_list = None
+				for rf in req_formats:
+					if rf in url_map:
+						video_url_list = [(rf, url_map[rf])]
+						break
+				if video_url_list is None:
+					self._downloader.trouble(u'ERROR: requested format not available')
+					return
+		else:
+			self._downloader.trouble(u'ERROR: no conn or url_encoded_fmt_stream_map information found in video info')
+			return
+
+		for format_param, video_real_url in video_url_list:
+			# At this point we have a new video
+			self._downloader.increment_downloads()
+
+			# Extension
+			video_extension = self._video_extensions.get(format_param, 'flv')
+
+			try:
+				# Process video information
+				self._downloader.process_info({
+					'id':		video_id.decode('utf-8'),
+					'url':		video_real_url.decode('utf-8'),
+					'uploader':	video_uploader.decode('utf-8'),
+					'upload_date':	upload_date,
+					'title':	video_title,
+					'stitle':	simple_title,
+					'ext':		video_extension.decode('utf-8'),
+					'format':	(format_param is None and u'NA' or format_param.decode('utf-8')),
+					'thumbnail':	video_thumbnail.decode('utf-8'),
+					'description':	video_description,
+					'player_url':	player_url,
+				})
+			except UnavailableVideoError, err:
+				self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class MetacafeIE(InfoExtractor):
+	"""Information Extractor for metacafe.com."""
+
+	_VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
+	_DISCLAIMER = 'http://www.metacafe.com/family_filter/'
+	_FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
+	_youtube_ie = None
+	IE_NAME = u'metacafe'
+
+	def __init__(self, youtube_ie, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+		self._youtube_ie = youtube_ie
+
+	def report_disclaimer(self):
+		"""Report disclaimer retrieval."""
+		self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
+
+	def report_age_confirmation(self):
+		"""Report attempt to confirm age."""
+		self._downloader.to_screen(u'[metacafe] Confirming age')
+
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'[metacafe] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[metacafe] %s: Extracting information' % video_id)
+
+	def _real_initialize(self):
+		# Retrieve disclaimer
+		request = urllib2.Request(self._DISCLAIMER)
+		try:
+			self.report_disclaimer()
+			disclaimer = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to retrieve disclaimer: %s' % str(err))
+			return
+
+		# Confirm age
+		disclaimer_form = {
+			'filters': '0',
+			'submit': "Continue - I'm over 18",
+			}
+		request = urllib2.Request(self._FILTER_POST, urllib.urlencode(disclaimer_form))
+		try:
+			self.report_age_confirmation()
+			disclaimer = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to confirm age: %s' % str(err))
+			return
+
+	def _real_extract(self, url):
+		# Extract id and simplified title from URL
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+
+		video_id = mobj.group(1)
+
+		# Check if video comes from YouTube
+		mobj2 = re.match(r'^yt-(.*)$', video_id)
+		if mobj2 is not None:
+			self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % mobj2.group(1))
+			return
+
+		# At this point we have a new video
+		self._downloader.increment_downloads()
+
+		simple_title = mobj.group(2).decode('utf-8')
+
+		# Retrieve video webpage to extract further information
+		request = urllib2.Request('http://www.metacafe.com/watch/%s/' % video_id)
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
+			return
+
+		# Extract URL, uploader and title from webpage
+		self.report_extraction(video_id)
+		mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
+		if mobj is not None:
+			mediaURL = urllib.unquote(mobj.group(1))
+			video_extension = mediaURL[-3:]
+
+			# Extract gdaKey if available
+			mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
+			if mobj is None:
+				video_url = mediaURL
+			else:
+				gdaKey = mobj.group(1)
+				video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
+		else:
+			mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
+			if mobj is None:
+				self._downloader.trouble(u'ERROR: unable to extract media URL')
+				return
+			vardict = parse_qs(mobj.group(1))
+			if 'mediaData' not in vardict:
+				self._downloader.trouble(u'ERROR: unable to extract media URL')
+				return
+			mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
+			if mobj is None:
+				self._downloader.trouble(u'ERROR: unable to extract media URL')
+				return
+			mediaURL = mobj.group(1).replace('\\/', '/')
+			video_extension = mediaURL[-3:]
+			video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
+
+		mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+		video_title = sanitize_title(video_title)
+
+		mobj = re.search(r'(?ms)By:\s*<a .*?>(.+?)<', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+			return
+		video_uploader = mobj.group(1)
+
+		try:
+			# Process video information
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		video_url.decode('utf-8'),
+				'uploader':	video_uploader.decode('utf-8'),
+				'upload_date':	u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		video_extension.decode('utf-8'),
+				'format':	u'NA',
+				'player_url':	None,
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class DailymotionIE(InfoExtractor):
+	"""Information Extractor for Dailymotion"""
+
+	_VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^_/]+)_([^/]+)'
+	IE_NAME = u'dailymotion'
+
+	def __init__(self, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
+
+	def _real_extract(self, url):
+		# Extract id and simplified title from URL
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+
+		# At this point we have a new video
+		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
+		request = urllib2.Request(url)
+		request.add_header('Cookie', 'family_filter=off')
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
+			return
+
+		# Extract URL, uploader and title from webpage
+		self.report_extraction(video_id)
+		mobj = re.search(r'(?i)addVariable\(\"sequence\"\s*,\s*\"([^\"]+?)\"\)', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract media URL')
+			return
+		sequence = urllib.unquote(mobj.group(1))
+		mobj = re.search(r',\"sdURL\"\:\"([^\"]+?)\",', sequence)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract media URL')
+			return
+		mediaURL = urllib.unquote(mobj.group(1)).replace('\\', '')
+
+		# if needed add http://www.dailymotion.com/ if relative URL
+
+		video_url = mediaURL
+
+		mobj = re.search(r'(?im)<title>Dailymotion\s*-\s*(.+)\s*-\s*[^<]+?</title>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+		video_title = sanitize_title(video_title)
+
+		mobj = re.search(r'(?im)<span class="owner[^\"]+?">[^<]+?<a [^>]+?>([^<]+?)</a></span>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+			return
+		video_uploader = mobj.group(1)
+
+		try:
+			# Process video information
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		video_url.decode('utf-8'),
+				'uploader':	video_uploader.decode('utf-8'),
+				'upload_date':	u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		video_extension.decode('utf-8'),
+				'format':	u'NA',
+				'player_url':	None,
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+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)
+
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'[video.google] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[video.google] %s: Extracting information' % video_id)
+
+	def _real_extract(self, url):
+		# Extract id from URL
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+			return
+
+		# At this point we have a new video
+		self._downloader.increment_downloads()
+		video_id = mobj.group(1)
+
+		video_extension = 'mp4'
+
+		# Retrieve video webpage to extract further information
+		request = urllib2.Request('http://video.google.com/videoplay?docid=%s&hl=en&oe=utf-8' % video_id)
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+			return
+
+		# Extract URL, uploader, and title from webpage
+		self.report_extraction(video_id)
+		mobj = re.search(r"download_url:'([^']+)'", webpage)
+		if mobj is None:
+			video_extension = 'flv'
+			mobj = re.search(r"(?i)videoUrl\\x3d(.+?)\\x26", webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract media URL')
+			return
+		mediaURL = urllib.unquote(mobj.group(1))
+		mediaURL = mediaURL.replace('\\x3d', '\x3d')
+		mediaURL = mediaURL.replace('\\x26', '\x26')
+
+		video_url = mediaURL
+
+		mobj = re.search(r'<title>(.*)</title>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+		video_title = sanitize_title(video_title)
+		simple_title = _simplify_title(video_title)
+
+		# Extract video description
+		mobj = re.search(r'<span id=short-desc-content>([^<]*)</span>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video description')
+			return
+		video_description = mobj.group(1).decode('utf-8')
+		if not video_description:
+			video_description = 'No description available.'
+
+		# Extract video thumbnail
+		if self._downloader.params.get('forcethumbnail', False):
+			request = urllib2.Request('http://video.google.com/videosearch?q=%s+site:video.google.com&hl=en' % abs(int(video_id)))
+			try:
+				webpage = urllib2.urlopen(request).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+				return
+			mobj = re.search(r'<img class=thumbnail-img (?:.* )?src=(http.*)>', webpage)
+			if mobj is None:
+				self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+				return
+			video_thumbnail = mobj.group(1)
+		else:	# we need something to pass to process_info
+			video_thumbnail = ''
+
+		try:
+			# Process video information
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		video_url.decode('utf-8'),
+				'uploader':	u'NA',
+				'upload_date':	u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		video_extension.decode('utf-8'),
+				'format':	u'NA',
+				'player_url':	None,
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class PhotobucketIE(InfoExtractor):
+	"""Information extractor for photobucket.com."""
+
+	_VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
+	IE_NAME = u'photobucket'
+
+	def __init__(self, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'[photobucket] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[photobucket] %s: Extracting information' % video_id)
+
+	def _real_extract(self, url):
+		# Extract id from URL
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+			return
+
+		# At this point we have a new video
+		self._downloader.increment_downloads()
+		video_id = mobj.group(1)
+
+		video_extension = 'flv'
+
+		# Retrieve video webpage to extract further information
+		request = urllib2.Request(url)
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+			return
+
+		# Extract URL, uploader, and title from webpage
+		self.report_extraction(video_id)
+		mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract media URL')
+			return
+		mediaURL = urllib.unquote(mobj.group(1))
+
+		video_url = mediaURL
+
+		mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+		video_title = sanitize_title(video_title)
+		simple_title = _simplify_title(vide_title)
+
+		video_uploader = mobj.group(2).decode('utf-8')
+
+		try:
+			# Process video information
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		video_url.decode('utf-8'),
+				'uploader':	video_uploader,
+				'upload_date':	u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		video_extension.decode('utf-8'),
+				'format':	u'NA',
+				'player_url':	None,
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class YahooIE(InfoExtractor):
+	"""Information extractor for video.yahoo.com."""
+
+	# _VALID_URL matches all Yahoo! Video URLs
+	# _VPAGE_URL matches only the extractable '/watch/' URLs
+	_VALID_URL = r'(?:http://)?(?:[a-z]+\.)?video\.yahoo\.com/(?:watch|network)/([0-9]+)(?:/|\?v=)([0-9]+)(?:[#\?].*)?'
+	_VPAGE_URL = r'(?:http://)?video\.yahoo\.com/watch/([0-9]+)/([0-9]+)(?:[#\?].*)?'
+	IE_NAME = u'video.yahoo'
+
+	def __init__(self, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'[video.yahoo] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[video.yahoo] %s: Extracting information' % video_id)
+
+	def _real_extract(self, url, new_video=True):
+		# Extract ID from URL
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+			return
+
+		# At this point we have a new video
+		self._downloader.increment_downloads()
+		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 = urllib2.Request(url)
+			try:
+				webpage = urllib2.urlopen(request).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+				return
+
+			mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
+			if mobj is None:
+				self._downloader.trouble(u'ERROR: Unable to extract id field')
+				return
+			yahoo_id = mobj.group(1)
+
+			mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
+			if mobj is None:
+				self._downloader.trouble(u'ERROR: Unable to extract vid field')
+				return
+			yahoo_vid = mobj.group(1)
+
+			url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
+			return self._real_extract(url, new_video=False)
+
+		# Retrieve video webpage to extract further information
+		request = urllib2.Request(url)
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+			return
+
+		# Extract uploader and title from webpage
+		self.report_extraction(video_id)
+		mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+		simple_title = _simplify_title(video_title)
+
+		mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video uploader')
+			return
+		video_uploader = mobj.group(1).decode('utf-8')
+
+		# Extract video thumbnail
+		mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+			return
+		video_thumbnail = mobj.group(1).decode('utf-8')
+
+		# Extract video description
+		mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video description')
+			return
+		video_description = mobj.group(1).decode('utf-8')
+		if not video_description:
+			video_description = 'No description available.'
+
+		# Extract video height and width
+		mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video height')
+			return
+		yv_video_height = mobj.group(1)
+
+		mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video width')
+			return
+		yv_video_width = mobj.group(1)
+
+		# Retrieve video playlist to extract media URL
+		# I'm not completely sure what all these options are, but we
+		# seem to need most of them, otherwise the server sends a 401.
+		yv_lg = 'R0xx6idZnW2zlrKP8xxAIR'  # not sure what this represents
+		yv_bitrate = '700'  # according to Wikipedia this is hard-coded
+		request = urllib2.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 = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+			return
+
+		# Extract media URL from playlist XML
+		mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: Unable to extract media URL')
+			return
+		video_url = urllib.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
+		video_url = re.sub(r'(?u)&(.+?);', htmlentity_transform, video_url)
+
+		try:
+			# Process video information
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		video_url,
+				'uploader':	video_uploader,
+				'upload_date':	u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		video_extension.decode('utf-8'),
+				'thumbnail':	video_thumbnail.decode('utf-8'),
+				'description':	video_description,
+				'thumbnail':	video_thumbnail,
+				'player_url':	None,
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class VimeoIE(InfoExtractor):
+	"""Information extractor for vimeo.com."""
+
+	# _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)
+
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'[vimeo] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[vimeo] %s: Extracting information' % video_id)
+
+	def _real_extract(self, url, new_video=True):
+		# Extract ID from URL
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+			return
+
+		# At this point we have a new video
+		self._downloader.increment_downloads()
+		video_id = mobj.group(1)
+
+		# Retrieve video webpage to extract further information
+		request = urllib2.Request("http://vimeo.com/moogaloop/load/clip:%s" % video_id, None, std_headers)
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+			return
+
+		# Now we begin extracting as much information as we can from what we
+		# retrieved. First we extract the information common to all extractors,
+		# and latter we extract those that are Vimeo specific.
+		self.report_extraction(video_id)
+
+		# Extract title
+		mobj = re.search(r'<caption>(.*?)</caption>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+		simple_title = _simple_title(video_title)
+
+		# Extract uploader
+		mobj = re.search(r'<uploader_url>http://vimeo.com/(.*?)</uploader_url>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video uploader')
+			return
+		video_uploader = mobj.group(1).decode('utf-8')
+
+		# Extract video thumbnail
+		mobj = re.search(r'<thumbnail>(.*?)</thumbnail>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
+			return
+		video_thumbnail = mobj.group(1).decode('utf-8')
+
+		# # Extract video description
+		# mobj = re.search(r'<meta property="og:description" content="(.*)" />', webpage)
+		# if mobj is None:
+		# 	self._downloader.trouble(u'ERROR: unable to extract video description')
+		# 	return
+		# video_description = mobj.group(1).decode('utf-8')
+		# if not video_description: video_description = 'No description available.'
+		video_description = 'Foo.'
+
+		# Vimeo specific: extract request signature
+		mobj = re.search(r'<request_signature>(.*?)</request_signature>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract request signature')
+			return
+		sig = mobj.group(1).decode('utf-8')
+
+		# Vimeo specific: extract video quality information
+		mobj = re.search(r'<isHD>(\d+)</isHD>', 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'<request_signature_expires>(.*?)</request_signature_expires>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract request signature expiration')
+			return
+		sig_exp = mobj.group(1).decode('utf-8')
+
+		video_url = "http://vimeo.com/moogaloop/play/clip:%s/%s/%s/?q=%s" % (video_id, sig, sig_exp, quality)
+
+		try:
+			# Process video information
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		video_url,
+				'uploader':	video_uploader,
+				'upload_date':	u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		u'mp4',
+				'thumbnail':	video_thumbnail.decode('utf-8'),
+				'description':	video_description,
+				'thumbnail':	video_thumbnail,
+				'description':	video_description,
+				'player_url':	None,
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'ERROR: unable to download video')
+
+
+class GenericIE(InfoExtractor):
+	"""Generic last-resort information extractor."""
+
+	_VALID_URL = r'.*'
+	IE_NAME = u'generic'
+
+	def __init__(self, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
+		self._downloader.to_screen(u'[generic] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
+
+	def _real_extract(self, url):
+		# At this point we have a new video
+		self._downloader.increment_downloads()
+
+		video_id = url.split('/')[-1]
+		request = urllib2.Request(url)
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+			return
+		except ValueError, err:
+			# since this is the last-resort InfoExtractor, if
+			# this error is thrown, it'll be thrown here
+			self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+			return
+
+		self.report_extraction(video_id)
+		# Start with something easy: JW Player in SWFObject
+		mobj = re.search(r'flashvars: [\'"](?:.*&)?file=(http[^\'"&]*)', webpage)
+		if mobj is None:
+			# Broaden the search a little bit
+			mobj = re.search(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+			return
+
+		# It's possible that one of the regexes
+		# matched, but returned an empty group:
+		if mobj.group(1) is None:
+			self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+			return
+
+		video_url = urllib.unquote(mobj.group(1))
+		video_id = os.path.basename(video_url)
+
+		# here's a fun little line of code for you:
+		video_extension = os.path.splitext(video_id)[1][1:]
+		video_id = os.path.splitext(video_id)[0]
+
+		# it's tempting to parse this further, but you would
+		# have to take into account all the variations like
+		#   Video Title - Site Name
+		#   Site Name | Video Title
+		#   Video Title - Tagline | Site Name
+		# and so on and so forth; it's just not practical
+		mobj = re.search(r'<title>(.*)</title>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract title')
+			return
+		video_title = mobj.group(1).decode('utf-8')
+		video_title = sanitize_title(video_title)
+		simple_title = _simplify_title(video_title)
+
+		# video uploader is domain name
+		mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract title')
+			return
+		video_uploader = mobj.group(1).decode('utf-8')
+
+		try:
+			# Process video information
+			self._downloader.process_info({
+				'id':		video_id.decode('utf-8'),
+				'url':		video_url.decode('utf-8'),
+				'uploader':	video_uploader,
+				'upload_date':	u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		video_extension.decode('utf-8'),
+				'format':	u'NA',
+				'player_url':	None,
+			})
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+class YoutubeSearchIE(InfoExtractor):
+	"""Information Extractor for YouTube search queries."""
+	_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*</a>'
+	_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
+
+	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'[youtube] query "%s": Downloading page %s' % (query, pagenum))
+
+	def _real_initialize(self):
+		self._youtube_ie.initialize()
+
+	def _real_extract(self, query):
+		mobj = re.match(self._VALID_URL, query)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+			return
+
+		prefix, query = query.split(':')
+		prefix = prefix[8:]
+		query = query.encode('utf-8')
+		if prefix == '':
+			self._download_n_results(query, 1)
+			return
+		elif prefix == 'all':
+			self._download_n_results(query, self._max_youtube_results)
+			return
+		else:
+			try:
+				n = long(prefix)
+				if n <= 0:
+					self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+					return
+				elif n > self._max_youtube_results:
+					self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)' % (self._max_youtube_results, n))
+					n = self._max_youtube_results
+				self._download_n_results(query, n)
+				return
+			except ValueError: # parsing prefix as integer fails
+				self._download_n_results(query, 1)
+				return
+
+	def _download_n_results(self, query, n):
+		"""Downloads a specified number of results for a query"""
+
+		video_ids = []
+		already_seen = set()
+		pagenum = 1
+
+		while True:
+			self.report_download_page(query, pagenum)
+			result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
+			request = urllib2.Request(result_url)
+			try:
+				page = urllib2.urlopen(request).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+				return
+
+			# Extract video identifiers
+			for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+				video_id = page[mobj.span()[0]:mobj.span()[1]].split('=')[2][:-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._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
+						return
+
+			if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+				for id in video_ids:
+					self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
+				return
+
+			pagenum = pagenum + 1
+
+
+class GoogleSearchIE(InfoExtractor):
+	"""Information Extractor for Google Video search queries."""
+	_VALID_URL = r'gvsearch(\d+|all)?:[\s\S]+'
+	_TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
+	_VIDEO_INDICATOR = r'videoplay\?docid=([^\&>]+)\&'
+	_MORE_PAGES_INDICATOR = r'<span>Next</span>'
+	_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
+
+	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_initialize(self):
+		self._google_ie.initialize()
+
+	def _real_extract(self, query):
+		mobj = re.match(self._VALID_URL, query)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+			return
+
+		prefix, query = query.split(':')
+		prefix = prefix[8:]
+		query = query.encode('utf-8')
+		if prefix == '':
+			self._download_n_results(query, 1)
+			return
+		elif prefix == 'all':
+			self._download_n_results(query, self._max_google_results)
+			return
+		else:
+			try:
+				n = long(prefix)
+				if n <= 0:
+					self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+					return
+				elif n > self._max_google_results:
+					self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)' % (self._max_google_results, n))
+					n = self._max_google_results
+				self._download_n_results(query, n)
+				return
+			except ValueError: # parsing prefix as integer fails
+				self._download_n_results(query, 1)
+				return
+
+	def _download_n_results(self, query, n):
+		"""Downloads a specified number of results for a query"""
+
+		video_ids = []
+		already_seen = set()
+		pagenum = 1
+
+		while True:
+			self.report_download_page(query, pagenum)
+			result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
+			request = urllib2.Request(result_url)
+			try:
+				page = urllib2.urlopen(request).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+				return
+
+			# Extract video identifiers
+			for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+				video_id = mobj.group(1)
+				if video_id not in already_seen:
+					video_ids.append(video_id)
+					already_seen.add(video_id)
+					if len(video_ids) == n:
+						# Specified n videos reached
+						for id in video_ids:
+							self._google_ie.extract('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._google_ie.extract('http://video.google.com/videoplay?docid=%s' % id)
+				return
+
+			pagenum = pagenum + 1
+
+
+class YahooSearchIE(InfoExtractor):
+	"""Information Extractor for Yahoo! Video search queries."""
+	_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
+
+	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_initialize(self):
+		self._yahoo_ie.initialize()
+
+	def _real_extract(self, query):
+		mobj = re.match(self._VALID_URL, query)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+			return
+
+		prefix, query = query.split(':')
+		prefix = prefix[8:]
+		query = query.encode('utf-8')
+		if prefix == '':
+			self._download_n_results(query, 1)
+			return
+		elif prefix == 'all':
+			self._download_n_results(query, self._max_yahoo_results)
+			return
+		else:
+			try:
+				n = long(prefix)
+				if n <= 0:
+					self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+					return
+				elif n > self._max_yahoo_results:
+					self._downloader.to_stderr(u'WARNING: yvsearch returns max %i results (you requested %i)' % (self._max_yahoo_results, n))
+					n = self._max_yahoo_results
+				self._download_n_results(query, n)
+				return
+			except ValueError: # parsing prefix as integer fails
+				self._download_n_results(query, 1)
+				return
+
+	def _download_n_results(self, query, n):
+		"""Downloads a specified number of results for a query"""
+
+		video_ids = []
+		already_seen = set()
+		pagenum = 1
+
+		while True:
+			self.report_download_page(query, pagenum)
+			result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
+			request = urllib2.Request(result_url)
+			try:
+				page = urllib2.urlopen(request).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+				return
+
+			# Extract video identifiers
+			for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+				video_id = mobj.group(1)
+				if video_id not in already_seen:
+					video_ids.append(video_id)
+					already_seen.add(video_id)
+					if len(video_ids) == n:
+						# Specified n videos reached
+						for id in video_ids:
+							self._yahoo_ie.extract('http://video.yahoo.com/watch/%s' % id)
+						return
+
+			if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+				for id in video_ids:
+					self._yahoo_ie.extract('http://video.yahoo.com/watch/%s' % id)
+				return
+
+			pagenum = pagenum + 1
+
+
+class YoutubePlaylistIE(InfoExtractor):
+	"""Information Extractor for YouTube playlists."""
+
+	_VALID_URL = r'(?:https?://)?(?:\w+\.)?youtube\.com/(?:(?:course|view_play_list|my_playlists|artist|playlist)\?.*?(p|a|list)=|user/.*?/user/|p/|user/.*?#[pg]/c/)(?:PL)?([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*</a>'
+	_youtube_ie = None
+	IE_NAME = u'youtube:playlist'
+
+	def __init__(self, youtube_ie, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+		self._youtube_ie = youtube_ie
+
+	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_initialize(self):
+		self._youtube_ie.initialize()
+
+	def _real_extract(self, url):
+		# Extract playlist id
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+			return
+
+		# Single video case
+		if mobj.group(3) is not None:
+			self._youtube_ie.extract(mobj.group(3))
+			return
+
+		# Download playlist pages
+		# prefix is 'p' as default for playlists but there are other types that need extra care
+		playlist_prefix = mobj.group(1)
+		if playlist_prefix == 'a':
+			playlist_access = 'artist'
+		else:
+			playlist_prefix = 'p'
+			playlist_access = 'view_play_list'
+		playlist_id = mobj.group(2)
+		video_ids = []
+		pagenum = 1
+
+		while True:
+			self.report_download_page(playlist_id, pagenum)
+			url = self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum)
+			request = urllib2.Request(url)
+			try:
+				page = urllib2.urlopen(request).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+				return
+
+			# Extract video identifiers
+			ids_in_page = []
+			for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+				if mobj.group(1) not in ids_in_page:
+					ids_in_page.append(mobj.group(1))
+			video_ids.extend(ids_in_page)
+
+			if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+				break
+			pagenum = pagenum + 1
+
+		playliststart = self._downloader.params.get('playliststart', 1) - 1
+		playlistend = self._downloader.params.get('playlistend', -1)
+		video_ids = video_ids[playliststart:playlistend]
+
+		for id in video_ids:
+			self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
+		return
+
+
+class YoutubeUserIE(InfoExtractor):
+	"""Information Extractor for YouTube users."""
+
+	_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=(.+?)[\<&]'
+	_youtube_ie = None
+	IE_NAME = u'youtube:user'
+
+	def __init__(self, youtube_ie, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+		self._youtube_ie = youtube_ie
+
+	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_initialize(self):
+		self._youtube_ie.initialize()
+
+	def _real_extract(self, url):
+		# Extract username
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+			return
+
+		username = mobj.group(1)
+
+		# Download video ids using YouTube Data API. Result size per
+		# query is limited (currently to 50 videos) so we need to query
+		# page by page until there are no video ids - it means we got
+		# all of them.
+
+		video_ids = []
+		pagenum = 0
+
+		while True:
+			start_index = pagenum * self._GDATA_PAGE_SIZE + 1
+			self.report_download_page(username, start_index)
+
+			request = urllib2.Request(self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index))
+
+			try:
+				page = urllib2.urlopen(request).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+				return
+
+			# Extract video identifiers
+			ids_in_page = []
+
+			for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+				if mobj.group(1) not in ids_in_page:
+					ids_in_page.append(mobj.group(1))
+
+			video_ids.extend(ids_in_page)
+
+			# A little optimization - if current page is not
+			# "full", ie. does not contain PAGE_SIZE video ids then
+			# we can assume that this page is the last one - there
+			# are no more ids on further pages - no need to query
+			# again.
+
+			if len(ids_in_page) < self._GDATA_PAGE_SIZE:
+				break
+
+			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("[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._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % video_id)
+
+
+class DepositFilesIE(InfoExtractor):
+	"""Information extractor for depositfiles.com"""
+
+	_VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles\.com/(?:../(?#locale))?files/(.+)'
+	IE_NAME = u'DepositFiles'
+
+	def __init__(self, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+
+	def report_download_webpage(self, file_id):
+		"""Report webpage download."""
+		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):
+		# At this point we have a new file
+		self._downloader.increment_downloads()
+
+		file_id = url.split('/')[-1]
+		# Rebuild url in english locale
+		url = 'http://depositfiles.com/en/files/' + file_id
+
+		# Retrieve file webpage with 'Free download' button pressed
+		free_download_indication = { 'gateway_result' : '1' }
+		request = urllib2.Request(url, urllib.urlencode(free_download_indication))
+		try:
+			self.report_download_webpage(file_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve file webpage: %s' % str(err))
+			return
+
+		# Search for the real file URL
+		mobj = re.search(r'<form action="(http://fileshare.+?)"', webpage)
+		if (mobj is None) or (mobj.group(1) is None):
+			# Try to figure out reason of the error.
+			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.trouble(u'ERROR: %s' % restriction_message)
+			else:
+				self._downloader.trouble(u'ERROR: unable to extract download URL from: %s' % url)
+			return
+
+		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.trouble(u'ERROR: unable to extract title')
+			return
+		file_title = mobj.group(1).decode('utf-8')
+
+		try:
+			# Process file information
+			self._downloader.process_info({
+				'id':		file_id.decode('utf-8'),
+				'url':		file_url.decode('utf-8'),
+				'uploader':	u'NA',
+				'upload_date':	u'NA',
+				'title':	file_title,
+				'stitle':	file_title,
+				'ext':		file_extension.decode('utf-8'),
+				'format':	u'NA',
+				'player_url':	None,
+			})
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'ERROR: unable to download file')
+
+
+class FacebookIE(InfoExtractor):
+	"""Information Extractor for Facebook"""
+
+	_VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook\.com/(?:video/video|photo)\.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
+	_LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
+	_NETRC_MACHINE = 'facebook'
+	_available_formats = ['video', 'highqual', 'lowqual']
+	_video_extensions = {
+		'video': 'mp4',
+		'highqual': 'mp4',
+		'lowqual': 'mp4',
+	}
+	IE_NAME = u'facebook'
+
+	def __init__(self, downloader=None):
+		InfoExtractor.__init__(self, downloader)
+
+	def _reporter(self, message):
+		"""Add header and report message."""
+		self._downloader.to_screen(u'[facebook] %s' % message)
+
+	def report_login(self):
+		"""Report attempt to log in."""
+		self._reporter(u'Logging in')
+
+	def report_video_webpage_download(self, video_id):
+		"""Report attempt to download video webpage."""
+		self._reporter(u'%s: Downloading video webpage' % video_id)
+
+	def report_information_extraction(self, video_id):
+		"""Report attempt to extract video information."""
+		self._reporter(u'%s: Extracting video information' % video_id)
+
+	def _parse_page(self, video_webpage):
+		"""Extract video information from page"""
+		# General data
+		data = {'title': r'\("video_title", "(.*?)"\)',
+			'description': r'<div class="datawrap">(.*?)</div>',
+			'owner': r'\("video_owner_name", "(.*?)"\)',
+			'thumbnail':  r'\("thumb_url", "(?P<THUMB>.*?)"\)',
+			}
+		video_info = {}
+		for piece in data.keys():
+			mobj = re.search(data[piece], video_webpage)
+			if mobj is not None:
+				video_info[piece] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
+
+		# Video urls
+		video_urls = {}
+		for fmt in self._available_formats:
+			mobj = re.search(r'\("%s_src\", "(.+?)"\)' % fmt, video_webpage)
+			if mobj is not None:
+				# URL is in a Javascript segment inside an escaped Unicode format within
+				# the generally utf-8 page
+				video_urls[fmt] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
+		video_info['video_urls'] = video_urls
+
+		return video_info
+
+	def _real_initialize(self):
+		if self._downloader is None:
+			return
+
+		useremail = None
+		password = None
+		downloader_params = self._downloader.params
+
+		# Attempt to use provided username and password or .netrc data
+		if downloader_params.get('username', None) is not None:
+			useremail = downloader_params['username']
+			password = downloader_params['password']
+		elif downloader_params.get('usenetrc', False):
+			try:
+				info = netrc.netrc().authenticators(self._NETRC_MACHINE)
+				if info is not None:
+					useremail = info[0]
+					password = info[2]
+				else:
+					raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
+			except (IOError, netrc.NetrcParseError), err:
+				self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
+				return
+
+		if useremail is None:
+			return
+
+		# Log in
+		login_form = {
+			'email': useremail,
+			'pass': password,
+			'login': 'Log+In'
+			}
+		request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
+		try:
+			self.report_login()
+			login_results = urllib2.urlopen(request).read()
+			if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
+				self._downloader.to_stderr(u'WARNING: unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
+				return
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
+			return
+
+	def _real_extract(self, url):
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+		video_id = mobj.group('ID')
+
+		# Get video webpage
+		self.report_video_webpage_download(video_id)
+		request = urllib2.Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
+		try:
+			page = urllib2.urlopen(request)
+			video_webpage = page.read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
+			return
+
+		# Start extracting information
+		self.report_information_extraction(video_id)
+
+		# Extract information
+		video_info = self._parse_page(video_webpage)
+
+		# uploader
+		if 'owner' not in video_info:
+			self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+			return
+		video_uploader = video_info['owner']
+
+		# title
+		if 'title' not in video_info:
+			self._downloader.trouble(u'ERROR: unable to extract video title')
+			return
+		video_title = video_info['title']
+		video_title = video_title.decode('utf-8')
+		video_title = sanitize_title(video_title)
+
+		simple_title = _simplify_title(video_title)
+
+		# thumbnail image
+		if 'thumbnail' not in video_info:
+			self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
+			video_thumbnail = ''
+		else:
+			video_thumbnail = video_info['thumbnail']
+
+		# upload date
+		upload_date = u'NA'
+		if 'upload_date' in video_info:
+			upload_time = video_info['upload_date']
+			timetuple = email.utils.parsedate_tz(upload_time)
+			if timetuple is not None:
+				try:
+					upload_date = time.strftime('%Y%m%d', timetuple[0:9])
+				except:
+					pass
+
+		# description
+		video_description = video_info.get('description', 'No description available.')
+
+		url_map = video_info['video_urls']
+		if len(url_map.keys()) > 0:
+			# Decide which formats to download
+			req_format = self._downloader.params.get('format', None)
+			format_limit = self._downloader.params.get('format_limit', None)
+
+			if format_limit is not None and format_limit in self._available_formats:
+				format_list = self._available_formats[self._available_formats.index(format_limit):]
+			else:
+				format_list = self._available_formats
+			existing_formats = [x for x in format_list if x in url_map]
+			if len(existing_formats) == 0:
+				self._downloader.trouble(u'ERROR: no known formats available for video')
+				return
+			if req_format is None:
+				video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
+			elif req_format == 'worst':
+				video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
+			elif req_format == '-1':
+				video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
+			else:
+				# Specific format
+				if req_format not in url_map:
+					self._downloader.trouble(u'ERROR: requested format not available')
+					return
+				video_url_list = [(req_format, url_map[req_format])] # Specific format
+
+		for format_param, video_real_url in video_url_list:
+
+			# At this point we have a new video
+			self._downloader.increment_downloads()
+
+			# Extension
+			video_extension = self._video_extensions.get(format_param, 'mp4')
+
+			try:
+				# Process video information
+				self._downloader.process_info({
+					'id':		video_id.decode('utf-8'),
+					'url':		video_real_url.decode('utf-8'),
+					'uploader':	video_uploader.decode('utf-8'),
+					'upload_date':	upload_date,
+					'title':	video_title,
+					'stitle':	simple_title,
+					'ext':		video_extension.decode('utf-8'),
+					'format':	(format_param is None and u'NA' or format_param.decode('utf-8')),
+					'thumbnail':	video_thumbnail.decode('utf-8'),
+					'description':	video_description.decode('utf-8'),
+					'player_url':	None,
+				})
+			except UnavailableVideoError, err:
+				self._downloader.trouble(u'\nERROR: unable to download video')
+
+class BlipTVIE(InfoExtractor):
+	"""Information extractor for blip.tv"""
+
+	_VALID_URL = r'^(?:https?://)?(?:\w+\.)?blip\.tv(/.+)$'
+	_URL_EXT = r'^.*\.([a-z0-9]+)$'
+	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))
+
+	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
+
+		if '?' in url:
+			cchar = '&'
+		else:
+			cchar = '?'
+		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:
+			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
+		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
+
+			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
+
+		self._downloader.increment_downloads()
+
+		try:
+			self._downloader.process_info(info)
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'\nERROR: unable to download video')
+
+
+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)
+	
+	def report_download_webpage(self, video_id):
+		"""Report webpage download."""
+		self._downloader.to_screen(u'[myvideo] %s: Downloading webpage' % video_id)
+
+	def report_extraction(self, video_id):
+		"""Report information extraction."""
+		self._downloader.to_screen(u'[myvideo] %s: Extracting information' % video_id)
+
+	def _real_extract(self,url):
+		mobj = re.match(self._VALID_URL, url)
+		if mobj is None:
+			self._download.trouble(u'ERROR: invalid URL: %s' % url)
+			return
+
+		video_id = mobj.group(1)
+
+		# Get video webpage
+		request = urllib2.Request('http://www.myvideo.de/watch/%s' % video_id)
+		try:
+			self.report_download_webpage(video_id)
+			webpage = urllib2.urlopen(request).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
+			return
+
+		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.trouble(u'ERROR: unable to extract media URL')
+			return
+		video_url = mobj.group(1) + ('/%s.flv' % video_id)
+
+		mobj = re.search('<title>([^<]+)</title>', webpage)
+		if mobj is None:
+			self._downloader.trouble(u'ERROR: unable to extract title')
+			return
+
+		video_title = mobj.group(1)
+		video_title = sanitize_title(video_title)
+
+		simple_title = _simplify_title(video_title)
+
+		try:
+			self._downloader.process_info({
+				'id':		video_id,
+				'url':		video_url,
+				'uploader':	u'NA',
+				'upload_date':  u'NA',
+				'title':	video_title,
+				'stitle':	simple_title,
+				'ext':		u'flv',
+				'format':	u'NA',
+				'player_url':	None,
+			})
+		except UnavailableVideoError:
+			self._downloader.trouble(u'\nERROR: Unable to download video')
+
+class ComedyCentralIE(InfoExtractor):
+	"""Information extractor for The Daily Show and Colbert Report """
+
+	_VALID_URL = r'^(:(?P<shortname>tds|thedailyshow|cr|colbert|colbertnation|colbertreport))|(https?://)?(www\.)?(?P<showname>thedailyshow|colbertnation)\.com/full-episodes/(?P<episode>.*)$'
+	IE_NAME = u'comedycentral'
+
+	def report_extraction(self, episode_id):
+		self._downloader.to_screen(u'[comedycentral] %s: Extracting information' % episode_id)
+	
+	def report_config_download(self, episode_id):
+		self._downloader.to_screen(u'[comedycentral] %s: Downloading configuration' % episode_id)
+
+	def report_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 _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
+
+		if mobj.group('shortname'):
+			if mobj.group('shortname') in ('tds', 'thedailyshow'):
+				url = u'http://www.thedailyshow.com/full-episodes/'
+			else:
+				url = u'http://www.colbertnation.com/full-episodes/'
+			mobj = re.match(self._VALID_URL, url)
+			assert mobj is not None
+
+		dlNewest = not mobj.group('episode')
+		if dlNewest:
+			epTitle = mobj.group('showname')
+		else:
+			epTitle = mobj.group('episode')
+
+		req = urllib2.Request(url)
+		self.report_extraction(epTitle)
+		try:
+			htmlHandle = urllib2.urlopen(req)
+			html = htmlHandle.read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download webpage: %s' % unicode(err))
+			return
+		if dlNewest:
+			url = htmlHandle.geturl()
+			mobj = re.match(self._VALID_URL, url)
+			if mobj is None:
+				self._downloader.trouble(u'ERROR: Invalid redirected URL: ' + url)
+				return
+			if mobj.group('episode') == '':
+				self._downloader.trouble(u'ERROR: Redirected URL is still not specific: ' + url)
+				return
+			epTitle = mobj.group('episode')
+
+		mMovieParams = re.findall('<param name="movie" value="(http://media.mtvnservices.com/([^"]*episode.*?:.*?))"/>', html)
+		if len(mMovieParams) == 0:
+			self._downloader.trouble(u'ERROR: unable to find Flash URL in webpage ' + url)
+			return
+
+		playerUrl_raw = mMovieParams[0][0]
+		self.report_player_url(epTitle)
+		try:
+			urlHandle = urllib2.urlopen(playerUrl_raw)
+			playerUrl = urlHandle.geturl()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to find out player URL: ' + unicode(err))
+			return
+
+		uri = mMovieParams[0][1]
+		indexUrl = 'http://shadow.comedycentral.com/feeds/video_player/mrss/?' + urllib.urlencode({'uri': uri})
+		self.report_index_download(epTitle)
+		try:
+			indexXml = urllib2.urlopen(indexUrl).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download episode index: ' + unicode(err))
+			return
+
+		idoc = xml.etree.ElementTree.fromstring(indexXml)
+		itemEls = idoc.findall('.//item')
+		for itemEl in itemEls:
+			mediaId = itemEl.findall('./guid')[0].text
+			shortMediaId = mediaId.split(':')[-1]
+			showId = mediaId.split(':')[-2].replace('.com', '')
+			officialTitle = itemEl.findall('./title')[0].text
+			officialDate = itemEl.findall('./pubDate')[0].text
+
+			configUrl = ('http://www.comedycentral.com/global/feeds/entertainment/media/mediaGenEntertainment.jhtml?' +
+						urllib.urlencode({'uri': mediaId}))
+			configReq = urllib2.Request(configUrl)
+			self.report_config_download(epTitle)
+			try:
+				configXml = urllib2.urlopen(configReq).read()
+			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+				self._downloader.trouble(u'ERROR: unable to download webpage: %s' % unicode(err))
+				return
+
+			cdoc = xml.etree.ElementTree.fromstring(configXml)
+			turls = []
+			for rendition in cdoc.findall('.//rendition'):
+				finfo = (rendition.attrib['bitrate'], rendition.findall('./src')[0].text)
+				turls.append(finfo)
+
+			if len(turls) == 0:
+				self._downloader.trouble(u'\nERROR: unable to download ' + mediaId + ': No videos found')
+				continue
+
+			# For now, just pick the highest bitrate
+			format,video_url = turls[-1]
+
+			self._downloader.increment_downloads()
+
+			effTitle = showId + u'-' + epTitle
+			info = {
+				'id': shortMediaId,
+				'url': video_url,
+				'uploader': showId,
+				'upload_date': officialDate,
+				'title': effTitle,
+				'stitle': self._simplify_title(effTitle),
+				'ext': 'mp4',
+				'format': format,
+				'thumbnail': None,
+				'description': officialTitle,
+				'player_url': playerUrl
+			}
+
+			try:
+				self._downloader.process_info(info)
+			except UnavailableVideoError, err:
+				self._downloader.trouble(u'\nERROR: unable to download ' + mediaId)
+				continue
+
+
+class EscapistIE(InfoExtractor):
+	"""Information extractor for The Escapist """
+
+	_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):
+		htmlParser = HTMLParser.HTMLParser()
+
+		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')
+
+		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
+
+		descMatch = re.search('<meta name="description" content="([^"]*)"', webPage)
+		description = htmlParser.unescape(descMatch.group(1))
+		imgMatch = re.search('<meta property="og:image" content="([^"]*)"', webPage)
+		imgUrl = htmlParser.unescape(imgMatch.group(1))
+		playerUrlMatch = re.search('<meta property="og:video" content="([^"]*)"', webPage)
+		playerUrl = htmlParser.unescape(playerUrlMatch.group(1))
+		configUrlMatch = re.search('config=(.*)$', playerUrl)
+		configUrl = urllib2.unquote(configUrlMatch.group(1))
+
+		self.report_config_download(showName)
+		try:
+			configJSON = urllib2.urlopen(configUrl).read()
+		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+			self._downloader.trouble(u'ERROR: unable to download configuration: ' + unicode(err))
+			return
+
+		# Technically, it's JavaScript, not JSON
+		configJSON = configJSON.replace("'", '"')
+
+		try:
+			config = json.loads(configJSON)
+		except (ValueError,), err:
+			self._downloader.trouble(u'ERROR: Invalid JSON in configuration file: ' + unicode(err))
+			return
+
+		playlist = config['playlist']
+		videoUrl = playlist[1]['url']
+
+		self._downloader.increment_downloads()
+		info = {
+			'id': videoId,
+			'url': videoUrl,
+			'uploader': showName,
+			'upload_date': None,
+			'title': showName,
+			'stitle': _simplify_title(showName),
+			'ext': 'flv',
+			'format': 'flv',
+			'thumbnail': imgUrl,
+			'description': description,
+			'player_url': playerUrl,
+		}
+
+		try:
+			self._downloader.process_info(info)
+		except UnavailableVideoError, err:
+			self._downloader.trouble(u'\nERROR: unable to download ' + videoId)
+
+
+class CollegeHumorIE(InfoExtractor):
+	"""Information extractor for collegehumor.com"""
+
+	_VALID_URL = r'^(?:https?://)?(?:www\.)?collegehumor\.com/video/(?P<videoid>[0-9]+)/(?P<shorttitle>.*)$'
+	IE_NAME = u'collegehumor'
+
+	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<internalvideoid>[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'<title>(.*?)\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"><p>(.*?)</p>', webpage)
+		if mobj:
+			description = mobj.group(1)
+		
+		# upload date
+		upload_date = None
+		mobj = re.search("pretty-date'>on ([\w]+ [\d]+, [\d]+ \d+:\d+)</abbr></h2>", webpage)
+		if mobj:
+			try:
+				upload_date = datetime.datetime.strptime(mobj.group(1), '%B %d, %Y %H:%M').strftime('%Y%m%d')
+			except Exception as 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'<meta name="description" content="(.*)"(?:\s*/)?>', 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 PostProcessor(object):
+	"""Post Processor class.
+
+	PostProcessor objects can be added to downloaders with their
+	add_post_processor() method. When the downloader has finished a
+	successful download, it will take its internal chain of PostProcessors
+	and start calling the run() method on each one of them, first with
+	an initial argument and then with the returned value of the previous
+	PostProcessor.
+
+	The chain will be stopped if one of them ever returns None or the end
+	of the chain is reached.
+
+	PostProcessor objects follow a "mutual registration" process similar
+	to InfoExtractor objects.
+	"""
+
+	_downloader = None
+
+	def __init__(self, downloader=None):
+		self._downloader = downloader
+
+	def set_downloader(self, downloader):
+		"""Sets the downloader for this PP."""
+		self._downloader = downloader
+
+	def run(self, information):
+		"""Run the PostProcessor.
+
+		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.
+
+		When this method returns None, the postprocessing chain is
+		stopped. However, this method may return an information
+		dictionary that will be passed to the next postprocessing
+		object in the chain. It can be the one it received after
+		changing some fields.
+
+		In addition, this method may raise a PostProcessingError
+		exception that will be taken into account by the downloader
+		it was called from.
+		"""
+		return information # by default, do nothing
+
+
+class FFmpegExtractAudioPP(PostProcessor):
+
+	def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, keepvideo=False):
+		PostProcessor.__init__(self, downloader)
+		if preferredcodec is None:
+			preferredcodec = 'best'
+		self._preferredcodec = preferredcodec
+		self._preferredquality = preferredquality
+		self._keepvideo = keepvideo
+
+	@staticmethod
+	def get_audio_codec(path):
+		try:
+			cmd = ['ffprobe', '-show_streams', '--', path]
+			handle = subprocess.Popen(cmd, stderr=file(os.path.devnull, 'w'), stdout=subprocess.PIPE)
+			output = handle.communicate()[0]
+			if handle.wait() != 0:
+				return None
+		except (IOError, OSError):
+			return None
+		audio_codec = None
+		for line in output.split('\n'):
+			if line.startswith('codec_name='):
+				audio_codec = line.split('=')[1].strip()
+			elif line.strip() == 'codec_type=audio' and audio_codec is not None:
+				return audio_codec
+		return None
+
+	@staticmethod
+	def run_ffmpeg(path, out_path, codec, more_opts):
+		try:
+			cmd = ['ffmpeg', '-y', '-i', path, '-vn', '-acodec', codec] + more_opts + ['--', out_path]
+			ret = subprocess.call(cmd, stdout=file(os.path.devnull, 'w'), stderr=subprocess.STDOUT)
+			return (ret == 0)
+		except (IOError, OSError):
+			return False
+
+	def run(self, information):
+		path = information['filepath']
+
+		filecodec = self.get_audio_codec(path)
+		if filecodec is None:
+			self._downloader.to_stderr(u'WARNING: unable to obtain file audio codec with ffprobe')
+			return None
+
+		more_opts = []
+		if self._preferredcodec == 'best' or self._preferredcodec == filecodec:
+			if filecodec in ['aac', 'mp3', 'vorbis']:
+				# Lossless if possible
+				acodec = 'copy'
+				extension = filecodec
+				if filecodec == 'aac':
+					more_opts = ['-f', 'adts']
+				if filecodec == 'vorbis':
+					extension = 'ogg'
+			else:
+				# MP3 otherwise.
+				acodec = 'libmp3lame'
+				extension = 'mp3'
+				more_opts = []
+				if self._preferredquality is not None:
+					more_opts += ['-ab', self._preferredquality]
+		else:
+			# We convert the audio (lossy)
+			acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'vorbis': 'libvorbis'}[self._preferredcodec]
+			extension = self._preferredcodec
+			more_opts = []
+			if self._preferredquality is not None:
+				more_opts += ['-ab', self._preferredquality]
+			if self._preferredcodec == 'aac':
+				more_opts += ['-f', 'adts']
+			if self._preferredcodec == 'vorbis':
+				extension = 'ogg'
+
+		(prefix, ext) = os.path.splitext(path)
+		new_path = prefix + '.' + extension
+		self._downloader.to_screen(u'[ffmpeg] Destination: %s' % new_path)
+		status = self.run_ffmpeg(path, new_path, acodec, more_opts)
+
+		if not status:
+			self._downloader.to_stderr(u'WARNING: error running ffmpeg')
+			return None
+
+ 		# Try to update the date time for extracted audio file.
+		if information.get('filetime') is not None:
+			try:
+				os.utime(new_path, (time.time(), information['filetime']))
+			except:
+				self._downloader.to_stderr(u'WARNING: Cannot update utime of audio file')
+
+		if not self._keepvideo:
+			try:
+				os.remove(path)
+			except (IOError, OSError):
+				self._downloader.to_stderr(u'WARNING: Unable to remove downloaded video file')
+				return None
+
+		information['filepath'] = new_path
+		return information
+
+
+def updateSelf(downloader, filename):
+	''' Update the program file with the latest version from the repository '''
+	# Note: downloader only used for options
+	if not os.access(filename, os.W_OK):
+		sys.exit('ERROR: no write permissions on %s' % filename)
+
+	downloader.to_screen('Updating to latest version...')
+
+	try:
+		try:
+			urlh = urllib.urlopen(UPDATE_URL)
+			newcontent = urlh.read()
+			
+			vmatch = re.search("__version__ = '([^']+)'", newcontent)
+			if vmatch is not None and vmatch.group(1) == __version__:
+				downloader.to_screen('youtube-dl is up-to-date (' + __version__ + ')')
+				return
+		finally:
+			urlh.close()
+	except (IOError, OSError), err:
+		sys.exit('ERROR: unable to download latest version')
+
+	try:
+		outf = open(filename, 'wb')
+		try:
+			outf.write(newcontent)
+		finally:
+			outf.close()
+	except (IOError, OSError), err:
+		sys.exit('ERROR: unable to overwrite current version')
+
+	downloader.to_screen('Updated youtube-dl. Restart youtube-dl to use the new version.')
+
+def parseOpts():
+	# Deferred imports
+	import getpass
+	import optparse
+
+	def _format_option_string(option):
+		''' ('-o', '--option') -> -o, --format METAVAR'''
+
+		opts = []
+
+		if option._short_opts: opts.append(option._short_opts[0])
+		if option._long_opts: opts.append(option._long_opts[0])
+		if len(opts) > 1: opts.insert(1, ', ')
+
+		if option.takes_value(): opts.append(' %s' % option.metavar)
+
+		return "".join(opts)
+
+	def _find_term_columns():
+		columns = os.environ.get('COLUMNS', None)
+		if columns:
+			return int(columns)
+
+		try:
+			sp = subprocess.Popen(['stty', 'size'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+			out,err = sp.communicate()
+			return int(out.split()[1])
+		except:
+			pass
+		return None
+
+	max_width = 80
+	max_help_position = 80
+
+	# No need to wrap help messages if we're on a wide console
+	columns = _find_term_columns()
+	if columns: max_width = columns
+
+	fmt = optparse.IndentedHelpFormatter(width=max_width, max_help_position=max_help_position)
+	fmt.format_option_strings = _format_option_string
+
+	kw = {
+		'version'   : __version__,
+		'formatter' : fmt,
+		'usage' : '%prog [options] url [url...]',
+		'conflict_handler' : 'resolve',
+	}
+
+	parser = optparse.OptionParser(**kw)
+
+	# option groups
+	general        = optparse.OptionGroup(parser, 'General Options')
+	selection      = optparse.OptionGroup(parser, 'Video Selection')
+	authentication = optparse.OptionGroup(parser, 'Authentication Options')
+	video_format   = optparse.OptionGroup(parser, 'Video Format Options')
+	postproc       = optparse.OptionGroup(parser, 'Post-processing Options')
+	filesystem     = optparse.OptionGroup(parser, 'Filesystem Options')
+	verbosity      = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')
+
+	general.add_option('-h', '--help',
+			action='help', help='print this help text and exit')
+	general.add_option('-v', '--version',
+			action='version', help='print program version and exit')
+	general.add_option('-U', '--update',
+			action='store_true', dest='update_self', help='update this program to latest version')
+	general.add_option('-i', '--ignore-errors',
+			action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
+	general.add_option('-r', '--rate-limit',
+			dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
+	general.add_option('-R', '--retries',
+			dest='retries', metavar='RETRIES', help='number of retries (default is 10)', default=10)
+	general.add_option('--dump-user-agent',
+			action='store_true', dest='dump_user_agent',
+			help='display the current browser identification', default=False)
+	general.add_option('--list-extractors',
+			action='store_true', dest='list_extractors',
+			help='List all supported extractors and the URLs they would handle', default=False)
+
+	selection.add_option('--playlist-start',
+			dest='playliststart', metavar='NUMBER', help='playlist video to start at (default is 1)', default=1)
+	selection.add_option('--playlist-end',
+			dest='playlistend', metavar='NUMBER', help='playlist video to end at (default is last)', default=-1)
+	selection.add_option('--match-title', dest='matchtitle', metavar='REGEX',help='download only matching titles (regex or caseless sub-string)')
+	selection.add_option('--reject-title', dest='rejecttitle', metavar='REGEX',help='skip download for matching titles (regex or caseless sub-string)')
+
+	authentication.add_option('-u', '--username',
+			dest='username', metavar='USERNAME', help='account username')
+	authentication.add_option('-p', '--password',
+			dest='password', metavar='PASSWORD', help='account password')
+	authentication.add_option('-n', '--netrc',
+			action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)
+
+
+	video_format.add_option('-f', '--format',
+			action='store', dest='format', metavar='FORMAT', help='video format code')
+	video_format.add_option('--all-formats',
+			action='store_const', dest='format', help='download all available video formats', const='all')
+	video_format.add_option('--max-quality',
+			action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
+	video_format.add_option('-F', '--list-formats',
+			action='store_true', dest='listformats', help='list all available formats (currently youtube only)')
+
+
+	verbosity.add_option('-q', '--quiet',
+			action='store_true', dest='quiet', help='activates quiet mode', default=False)
+	verbosity.add_option('-s', '--simulate',
+			action='store_true', dest='simulate', help='do not download the video and do not write anything to disk', default=False)
+	verbosity.add_option('--skip-download',
+			action='store_true', dest='skip_download', help='do not download the video', default=False)
+	verbosity.add_option('-g', '--get-url',
+			action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
+	verbosity.add_option('-e', '--get-title',
+			action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
+	verbosity.add_option('--get-thumbnail',
+			action='store_true', dest='getthumbnail',
+			help='simulate, quiet but print thumbnail URL', default=False)
+	verbosity.add_option('--get-description',
+			action='store_true', dest='getdescription',
+			help='simulate, quiet but print video description', default=False)
+	verbosity.add_option('--get-filename',
+			action='store_true', dest='getfilename',
+			help='simulate, quiet but print output filename', default=False)
+	verbosity.add_option('--get-format',
+			action='store_true', dest='getformat',
+			help='simulate, quiet but print output format', default=False)
+	verbosity.add_option('--no-progress',
+			action='store_true', dest='noprogress', help='do not print progress bar', default=False)
+	verbosity.add_option('--console-title',
+			action='store_true', dest='consoletitle',
+			help='display progress in console titlebar', default=False)
+
+
+	filesystem.add_option('-t', '--title',
+			action='store_true', dest='usetitle', help='use title in file name', default=False)
+	filesystem.add_option('-l', '--literal',
+			action='store_true', dest='useliteral', help='use literal title in file name', default=False)
+	filesystem.add_option('-A', '--auto-number',
+			action='store_true', dest='autonumber',
+			help='number downloaded files starting from 00000', default=False)
+	filesystem.add_option('-o', '--output',
+			dest='outtmpl', metavar='TEMPLATE', help='output filename template. Use %(stitle)s to get the title, %(uploader)s for the uploader name, %(autonumber)s to get an automatically incremented number, %(ext)s for the filename extension, and %% for a literal percent')
+	filesystem.add_option('-a', '--batch-file',
+			dest='batchfile', metavar='FILE', help='file containing URLs to download (\'-\' for stdin)')
+	filesystem.add_option('-w', '--no-overwrites',
+			action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
+	filesystem.add_option('-c', '--continue',
+			action='store_true', dest='continue_dl', help='resume partially downloaded files', default=False)
+	filesystem.add_option('--no-continue',
+			action='store_false', dest='continue_dl',
+			help='do not resume partially downloaded files (restart from beginning)')
+	filesystem.add_option('--cookies',
+			dest='cookiefile', metavar='FILE', help='file to read cookies from and dump cookie jar in')
+	filesystem.add_option('--no-part',
+			action='store_true', dest='nopart', help='do not use .part files', default=False)
+	filesystem.add_option('--no-mtime',
+			action='store_false', dest='updatetime',
+			help='do not use the Last-modified header to set the file modification time', default=True)
+	filesystem.add_option('--write-description',
+			action='store_true', dest='writedescription',
+			help='write video description to a .description file', default=False)
+	filesystem.add_option('--write-info-json',
+			action='store_true', dest='writeinfojson',
+			help='write video metadata to a .info.json file', default=False)
+
+
+	postproc.add_option('--extract-audio', action='store_true', dest='extractaudio', default=False,
+			help='convert video files to audio-only files (requires ffmpeg and ffprobe)')
+	postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
+			help='"best", "aac", "vorbis" or "mp3"; best by default')
+	postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='128K',
+			help='ffmpeg audio bitrate specification, 128k by default')
+	postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
+			help='keeps the video file on disk after the post-processing; the video is erased by default')
+
+
+	parser.add_option_group(general)
+	parser.add_option_group(selection)
+	parser.add_option_group(filesystem)
+	parser.add_option_group(verbosity)
+	parser.add_option_group(video_format)
+	parser.add_option_group(authentication)
+	parser.add_option_group(postproc)
+
+	opts, args = parser.parse_args()
+
+	return parser, opts, args
+
+def gen_extractors():
+	""" Return a list of an instance of every supported extractor.
+	The order does matter; the first extractor matched is the one handling the URL.
+	"""
+	youtube_ie = YoutubeIE()
+	google_ie = GoogleIE()
+	yahoo_ie = YahooIE()
+	return [
+		YoutubePlaylistIE(youtube_ie),
+		YoutubeUserIE(youtube_ie),
+		YoutubeSearchIE(youtube_ie),
+		youtube_ie,
+		MetacafeIE(youtube_ie),
+		DailymotionIE(),
+		google_ie,
+		GoogleSearchIE(google_ie),
+		PhotobucketIE(),
+		yahoo_ie,
+		YahooSearchIE(yahoo_ie),
+		DepositFilesIE(),
+		FacebookIE(),
+		BlipTVIE(),
+		VimeoIE(),
+		MyVideoIE(),
+		ComedyCentralIE(),
+		EscapistIE(),
+		CollegeHumorIE(),
+		XVideosIE(),
+		SoundcloudIE(),
+		InfoQIE(),
+
+		GenericIE()
+	]
+
+def _real_main():
+	parser, opts, args = parseOpts()
+
+	# Open appropriate CookieJar
+	if opts.cookiefile is None:
+		jar = cookielib.CookieJar()
+	else:
+		try:
+			jar = cookielib.MozillaCookieJar(opts.cookiefile)
+			if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
+				jar.load()
+		except (IOError, OSError), err:
+			sys.exit(u'ERROR: unable to open cookie file')
+
+	# Dump user agent
+	if opts.dump_user_agent:
+		print std_headers['User-Agent']
+		sys.exit(0)
+
+	# Batch file verification
+	batchurls = []
+	if opts.batchfile is not None:
+		try:
+			if opts.batchfile == '-':
+				batchfd = sys.stdin
+			else:
+				batchfd = open(opts.batchfile, 'r')
+			batchurls = batchfd.readlines()
+			batchurls = [x.strip() for x in batchurls]
+			batchurls = [x for x in batchurls if len(x) > 0 and not re.search(r'^[#/;]', x)]
+		except IOError:
+			sys.exit(u'ERROR: batch file could not be read')
+	all_urls = batchurls + args
+
+	# General configuration
+	cookie_processor = urllib2.HTTPCookieProcessor(jar)
+	opener = urllib2.build_opener(urllib2.ProxyHandler(), cookie_processor, YoutubeDLHandler())
+	urllib2.install_opener(opener)
+	socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)
+
+	extractors = gen_extractors()
+
+	if opts.list_extractors:
+		for ie in extractors:
+			print(ie.IE_NAME)
+			matchedUrls = filter(lambda url: ie.suitable(url), all_urls)
+			all_urls = filter(lambda url: url not in matchedUrls, all_urls)
+			for mu in matchedUrls:
+				print(u'  ' + mu)
+		sys.exit(0)
+
+	# Conflicting, missing and erroneous options
+	if opts.usenetrc and (opts.username is not None or opts.password is not None):
+		parser.error(u'using .netrc conflicts with giving username/password')
+	if opts.password is not None and opts.username is None:
+		parser.error(u'account username missing')
+	if opts.outtmpl is not None and (opts.useliteral or opts.usetitle or opts.autonumber):
+		parser.error(u'using output template conflicts with using title, literal title or auto number')
+	if opts.usetitle and opts.useliteral:
+		parser.error(u'using title conflicts with using literal title')
+	if opts.username is not None and opts.password is None:
+		opts.password = getpass.getpass(u'Type account password and press return:')
+	if opts.ratelimit is not None:
+		numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
+		if numeric_limit is None:
+			parser.error(u'invalid rate limit specified')
+		opts.ratelimit = numeric_limit
+	if opts.retries is not None:
+		try:
+			opts.retries = long(opts.retries)
+		except (TypeError, ValueError), err:
+			parser.error(u'invalid retry count specified')
+	try:
+		opts.playliststart = int(opts.playliststart)
+		if opts.playliststart <= 0:
+			raise ValueError(u'Playlist start must be positive')
+	except (TypeError, ValueError), err:
+		parser.error(u'invalid playlist start number specified')
+	try:
+		opts.playlistend = int(opts.playlistend)
+		if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
+			raise ValueError(u'Playlist end must be greater than playlist start')
+	except (TypeError, ValueError), err:
+		parser.error(u'invalid playlist end number specified')
+	if opts.extractaudio:
+		if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis']:
+			parser.error(u'invalid audio format specified')
+
+	# File downloader
+	fd = FileDownloader({
+		'usenetrc': opts.usenetrc,
+		'username': opts.username,
+		'password': opts.password,
+		'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+		'forceurl': opts.geturl,
+		'forcetitle': opts.gettitle,
+		'forcethumbnail': opts.getthumbnail,
+		'forcedescription': opts.getdescription,
+		'forcefilename': opts.getfilename,
+		'forceformat': opts.getformat,
+		'simulate': opts.simulate,
+		'skip_download': (opts.skip_download or opts.simulate or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename or opts.getformat),
+		'format': opts.format,
+		'format_limit': opts.format_limit,
+		'listformats': opts.listformats,
+		'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
+			or (opts.format == '-1' and opts.usetitle and u'%(stitle)s-%(id)s-%(format)s.%(ext)s')
+			or (opts.format == '-1' and opts.useliteral and u'%(title)s-%(id)s-%(format)s.%(ext)s')
+			or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')
+			or (opts.usetitle and opts.autonumber and u'%(autonumber)s-%(stitle)s-%(id)s.%(ext)s')
+			or (opts.useliteral and opts.autonumber and u'%(autonumber)s-%(title)s-%(id)s.%(ext)s')
+			or (opts.usetitle and u'%(stitle)s-%(id)s.%(ext)s')
+			or (opts.useliteral and u'%(title)s-%(id)s.%(ext)s')
+			or (opts.autonumber and u'%(autonumber)s-%(id)s.%(ext)s')
+			or u'%(id)s.%(ext)s'),
+		'ignoreerrors': opts.ignoreerrors,
+		'ratelimit': opts.ratelimit,
+		'nooverwrites': opts.nooverwrites,
+		'retries': opts.retries,
+		'continuedl': opts.continue_dl,
+		'noprogress': opts.noprogress,
+		'playliststart': opts.playliststart,
+		'playlistend': opts.playlistend,
+		'logtostderr': opts.outtmpl == '-',
+		'consoletitle': opts.consoletitle,
+		'nopart': opts.nopart,
+		'updatetime': opts.updatetime,
+		'writedescription': opts.writedescription,
+		'writeinfojson': opts.writeinfojson,
+		'matchtitle': opts.matchtitle,
+		'rejecttitle': opts.rejecttitle,
+		})
+	for extractor in extractors:
+		fd.add_info_extractor(extractor)
+
+	# PostProcessors
+	if opts.extractaudio:
+		fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat, preferredquality=opts.audioquality, keepvideo=opts.keepvideo))
+
+	# Update version
+	if opts.update_self:
+		updateSelf(fd, sys.argv[0])
+
+	# Maybe do nothing
+	if len(all_urls) < 1:
+		if not opts.update_self:
+			parser.error(u'you must provide at least one URL')
+		else:
+			sys.exit()
+	retcode = fd.download(all_urls)
+
+	# Dump cookie jar if requested
+	if opts.cookiefile is not None:
+		try:
+			jar.save()
+		except (IOError, OSError), err:
+			sys.exit(u'ERROR: unable to save cookie jar')
+
+	sys.exit(retcode)
+
+def main():
+	try:
+		_real_main()
+	except DownloadError:
+		sys.exit(1)
+	except SameFileError:
+		sys.exit(u'ERROR: fixed output name but more than one file to download')
+	except KeyboardInterrupt:
+		sys.exit(u'\nERROR: Interrupted by user')
+
+if __name__ == '__main__':
+	main()
+
+# vim: set ts=4 sw=4 sts=4 noet ai si filetype=python:


Test patch:
diff --git a/test/test_div.py b/test/test_div.py
new file mode 100644
--- /dev/null
+++ b/test/test_div.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+
+# Various small unit tests
+
+import os,sys
+sys.path.append(os.path.dirname(os.path.dirname(__file__)))
+
+import youtube_dl
+
+def test_simplify_title():
+	assert youtube_dl._simplify_title(u'abc') == u'abc'
+	assert youtube_dl._simplify_title(u'abc_d-e') == u'abc_d-e'
+
+	assert youtube_dl._simplify_title(u'123') == u'123'
+
+	assert u'/' not in youtube_dl._simplify_title(u'abc/de')
+	assert u'abc' in youtube_dl._simplify_title(u'abc/de')
+	assert u'de' in youtube_dl._simplify_title(u'abc/de')
+	assert u'/' not in youtube_dl._simplify_title(u'abc/de///')
+
+	assert u'\\' not in youtube_dl._simplify_title(u'abc\\de')
+	assert u'abc' in youtube_dl._simplify_title(u'abc\\de')
+	assert u'de' in youtube_dl._simplify_title(u'abc\\de')
+
+	assert youtube_dl._simplify_title(u'ä') == u'ä'
+	assert youtube_dl._simplify_title(u'кириллица') == u'кириллица'
+
+	# Strip underlines
+	assert youtube_dl._simplify_title(u'\'a_') == u'a'