Split code as a package, compiled into an executable zip

1 files changed, 5 insertions, 4283 deletions

diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index 8d0d1cc33..409e4386f 100755..100644
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -25,4294 +25,21 @@ UPDATE_URL = 'https://raw.github.com/rg3/youtube-dl/master/youtube-dl'
 
 
 import cookielib
-import datetime
 import getpass
-import gzip
-import htmlentitydefs
-import HTMLParser
-import httplib
-import locale
-import math
-import netrc
 import optparse
 import os
-import os.path
 import re
 import shlex
 import socket
-import string
 import subprocess
 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(_encodeFilename(filename), open_mode)
-		return (stream, filename)
-	except (IOError, OSError), err:
-		# In case of error, try to remove win32 forbidden chars
-		filename = re.sub(ur'[/<>:"\|\?\*]', u'#', filename)
-
-		# An exception here should be caught in the caller
-		stream = open(_encodeFilename(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'_')
-
-def _orderedSet(iterable):
-	""" Remove all duplicates from the input iterable """
-	res = []
-	for el in iterable:
-		if el not in res:
-			res.append(el)
-	return res
-
-def _unescapeHTML(s):
-	"""
-	@param s a string (of type unicode)
-	"""
-	assert type(s) == type(u'')
-
-	htmlParser = HTMLParser.HTMLParser()
-	return htmlParser.unescape(s)
-
-def _encodeFilename(s):
-	"""
-	@param s The name of the file (of type unicode)
-	"""
-
-	assert type(s) == type(u'')
-
-	if sys.platform == 'win32' and sys.getwindowsversion().major >= 5:
-		# Pass u'' directly to use Unicode APIs on Windows 2000 and up
-		# (Detecting Windows NT 4 is tricky because 'major >= 4' would
-		# match Windows 9x series as well. Besides, NT 4 is obsolete.)
-		return s
-	else:
-		return s.encode(sys.getfilesystemencoding(), 'ignore')
-
-class DownloadError(Exception):
-	"""Download Error exception.
-
-	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 MaxDownloadsReached(Exception):
-	""" --max-downloads limit has been reached. """
-	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
-	writesubtitles:   Write the video subtitles to a .srt file
-	subtitleslang:    Language of the subtitles to download
-	"""
-
-	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):
-		"""Print message to stdout if not in quiet mode."""
-		assert type(message) == type(u'')
-		if not self.params.get('quiet', False):
-			terminator = [u'\n', u''][skip_eol]
-			output = message + terminator
-
-			if 'b' not in self._screen_file.mode or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
-				output = output.encode(preferredencoding(), 'ignore')
-			self._screen_file.write(output)
-			self._screen_file.flush()
-
-	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(_encodeFilename(filename)) and not os.path.isfile(_encodeFilename(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(_encodeFilename(old_filename), _encodeFilename(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(_encodeFilename(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: ' + descfn)
-
-	def report_writesubtitles(self, srtfn):
-		""" Report that the subtitles file is being written """
-		self.to_screen(u'[info] Writing video subtitles to: ' + srtfn)
-
-	def report_writeinfojson(self, infofn):
-		""" Report that the metadata file has been written """
-		self.to_screen(u'[info] Video description metadata as JSON to: ' + infofn)
-
-	def report_destination(self, filename):
-		"""Report destination filename."""
-		self.to_screen(u'[download] Destination: ' + filename)
-
-	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 _match_entry(self, info_dict):
-		""" Returns None iff the file should be downloaded """
-
-		title = info_dict['title']
-		matchtitle = self.params.get('matchtitle', False)
-		if matchtitle and not re.search(matchtitle, title, re.IGNORECASE):
-			return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"'
-		rejecttitle = self.params.get('rejecttitle', False)
-		if rejecttitle and re.search(rejecttitle, title, re.IGNORECASE):
-			return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"'
-		return None
-
-	def process_info(self, info_dict):
-		"""Process a single dictionary returned by an InfoExtractor."""
-
-		reason = self._match_entry(info_dict)
-		if reason is not None:
-			self.to_screen(u'[download] ' + reason)
-			return
-
-		max_downloads = self.params.get('max_downloads')
-		if max_downloads is not None:
-			if self._num_downloads > int(max_downloads):
-				raise MaxDownloadsReached()
-
-		filename = self.prepare_filename(info_dict)
-		
-		# Forced printings
-		if self.params.get('forcetitle', False):
-			print info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace')
-		if self.params.get('forceurl', False):
-			print info_dict['url'].encode(preferredencoding(), 'xmlcharrefreplace')
-		if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict:
-			print info_dict['thumbnail'].encode(preferredencoding(), 'xmlcharrefreplace')
-		if self.params.get('forcedescription', False) and 'description' in info_dict:
-			print info_dict['description'].encode(preferredencoding(), 'xmlcharrefreplace')
-		if self.params.get('forcefilename', False) and filename is not None:
-			print filename.encode(preferredencoding(), 'xmlcharrefreplace')
-		if self.params.get('forceformat', False):
-			print info_dict['format'].encode(preferredencoding(), 'xmlcharrefreplace')
-
-		# Do nothing else if in simulate mode
-		if self.params.get('simulate', False):
-			return
-
-		if filename is None:
-			return
-
-		try:
-			dn = os.path.dirname(_encodeFilename(filename))
-			if dn != '' and not os.path.exists(dn): # dn is already encoded
-				os.makedirs(dn)
-		except (OSError, IOError), err:
-			self.trouble(u'ERROR: unable to create directory ' + unicode(err))
-			return
-
-		if self.params.get('writedescription', False):
-			try:
-				descfn = filename + u'.description'
-				self.report_writedescription(descfn)
-				descfile = open(_encodeFilename(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('writesubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']:
-			# subtitles download errors are already managed as troubles in relevant IE
-			# that way it will silently go on when used with unsupporting IE 
-			try:
-				srtfn = filename.rsplit('.', 1)[0] + u'.srt'
-				self.report_writesubtitles(srtfn)
-				srtfile = open(_encodeFilename(srtfn), 'wb')
-				try:
-					srtfile.write(info_dict['subtitles'].encode('utf-8'))
-				finally:
-					srtfile.close()
-			except (OSError, IOError):
-				self.trouble(u'ERROR: Cannot write subtitles file ' + descfn)
-				return
-
-		if self.params.get('writeinfojson', False):
-			infofn = filename + u'.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(_encodeFilename(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):
-			if self.params.get('nooverwrites', False) and os.path.exists(_encodeFilename(filename)):
-				success = True
-			else:
-				try:
-					success = self._do_download(filename, info_dict)
-				except (OSError, IOError), err:
-					raise UnavailableVideoError
-				except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-					self.trouble(u'ERROR: unable to download video data: %s' % str(err))
-					return
-				except (ContentTooShortError, ), err:
-					self.trouble(u'ERROR: content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
-					return
-	
-			if success:
-				try:
-					self.post_process(filename, info_dict)
-				except (PostProcessingError), err:
-					self.trouble(u'ERROR: postprocessing: %s' % str(err))
-					return
-
-	def download(self, url_list):
-		"""Download a given list of URLs."""
-		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]
-		args = basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)]
-		if self.params.get('verbose', False):
-			try:
-				import pipes
-				shell_quote = lambda args: ' '.join(map(pipes.quote, args))
-			except ImportError:
-				shell_quote = repr
-			self.to_screen(u'[debug] rtmpdump command line: ' + shell_quote(args))
-		retval = subprocess.call(args)
-		while retval == 2 or retval == 1:
-			prevsize = os.path.getsize(_encodeFilename(tmpfilename))
-			self.to_screen(u'\r[rtmpdump] %s bytes' % prevsize, skip_eol=True)
-			time.sleep(5.0) # This seems to be needed
-			retval = subprocess.call(basic_args + ['-e'] + [[], ['-k', '1']][retval == 1])
-			cursize = os.path.getsize(_encodeFilename(tmpfilename))
-			if prevsize == cursize and retval == 1:
-				break
-			 # Some rtmp streams seem abort after ~ 99.8%. Don't complain for those
-			if prevsize == cursize and retval == 2 and cursize > 1024:
-				self.to_screen(u'\r[rtmpdump] Could not download the whole video. This can happen for some advertisements.')
-				retval = 0
-				break
-		if retval == 0:
-			self.to_screen(u'\r[rtmpdump] %s bytes' % os.path.getsize(_encodeFilename(tmpfilename)))
-			self.try_rename(tmpfilename, filename)
-			return True
-		else:
-			self.trouble(u'\nERROR: rtmpdump exited with code %d' % retval)
-			return False
-
-	def _do_download(self, filename, 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(_encodeFilename(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(_encodeFilename(tmpfilename)):
-			resume_len = os.path.getsize(_encodeFilename(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'
-	_NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
-	_NETRC_MACHINE = 'youtube'
-	# Listed in order of quality
-	_available_formats = ['38', '37', '22', '45', '35', '44', '34', '18', '43', '6', '5', '17', '13']
-	_available_formats_prefer_free = ['38', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '17', '13']
-	_video_extensions = {
-		'13': '3gp',
-		'17': 'mp4',
-		'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_video_subtitles_download(self, video_id):
-		"""Report attempt to download video info webpage."""
-		self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles' % video_id)
-
-	def report_information_extraction(self, video_id):
-		"""Report attempt to extract video information."""
-		self._downloader.to_screen(u'[youtube] %s: Extracting video information' % video_id)
-
-	def report_unavailable_format(self, video_id, format):
-		"""Report extracted video URL."""
-		self._downloader.to_screen(u'[youtube] %s: Format %s not available' % (video_id, format))
-
-	def report_rtmp_download(self):
-		"""Indicate the download will use the RTMP protocol."""
-		self._downloader.to_screen(u'[youtube] RTMP download detected')
-
-	def _closed_captions_xml_to_srt(self, xml_string):
-		srt = ''
-		texts = re.findall(r'<text start="([\d\.]+)"( dur="([\d\.]+)")?>([^<]+)</text>', xml_string, re.MULTILINE)
-		# TODO parse xml instead of regex
-		for n, (start, dur_tag, dur, caption) in enumerate(texts):
-			if not dur: dur = '4'
-			start = float(start)
-			end = start + float(dur)
-			start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000)
-			end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000)
-			caption = re.sub(ur'(?u)&(.+?);', htmlentity_transform, caption)
-			caption = re.sub(ur'(?u)&(.+?);', htmlentity_transform, caption) # double cycle, inentional
-			srt += str(n) + '\n'
-			srt += start + ' --> ' + end + '\n'
-			srt += caption + '\n\n'
-		return srt
-
-	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 original video URL from URL with redirection, like age verification, using next_url parameter
-		mobj = re.search(self._NEXT_URL_RE, url)
-		if mobj:
-			url = 'http://www.youtube.com/' + urllib.unquote(mobj.group(1)).lstrip('/')
-
-		# 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.'
-			mobj = re.search(r'<meta name="description" content="(.*?)">', 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
-			
-		# closed captions
-		video_subtitles = None
-		if self._downloader.params.get('writesubtitles', False):
-			self.report_video_subtitles_download(video_id)
-			request = urllib2.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
-			try:
-				srt_list = urllib2.urlopen(request).read()
-			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-				self._downloader.trouble(u'WARNING: unable to download video subtitles: %s' % str(err))
-			else:
-				srt_lang_list = re.findall(r'lang_code="([\w\-]+)"', srt_list)
-				if srt_lang_list:
-					if self._downloader.params.get('subtitleslang', False):
-						srt_lang = self._downloader.params.get('subtitleslang')
-					elif 'en' in srt_lang_list:
-						srt_lang = 'en'
-					else:
-						srt_lang = srt_lang_list[0]
-					if not srt_lang in srt_lang_list:
-						self._downloader.trouble(u'WARNING: no closed captions found in the specified language')
-					else:
-						request = urllib2.Request('http://video.google.com/timedtext?hl=en&lang=%s&v=%s' % (srt_lang, video_id))
-						try:
-							srt_xml = urllib2.urlopen(request).read()
-						except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-							self._downloader.trouble(u'WARNING: unable to download video subtitles: %s' % str(err))
-						else:
-							video_subtitles = self._closed_captions_xml_to_srt(srt_xml.decode('utf-8'))
-				else:
-					self._downloader.trouble(u'WARNING: video has no closed captions')
-
-		# 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)
-			available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
-			if format_limit is not None and format_limit in available_formats:
-				format_list = available_formats[available_formats.index(format_limit):]
-			else:
-				format_list = available_formats
-			existing_formats = [x for x in format_list if x in url_map]
-			if len(existing_formats) == 0:
-				self._downloader.trouble(u'ERROR: no known formats available for video')
-				return
-			if self._downloader.params.get('listformats', None):
-				self._print_formats(existing_formats)
-				return
-			if req_format is None or req_format == 'best':
-				video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
-			elif req_format == 'worst':
-				video_url_list = [(existing_formats[len(existing_formats)-1], url_map[existing_formats[len(existing_formats)-1]])] # worst quality
-			elif req_format in ('-1', 'all'):
-				video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
-			else:
-				# Specific formats. We pick the first in a slash-delimeted sequence.
-				# For example, if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
-				req_formats = req_format.split('/')
-				video_url_list = None
-				for rf in req_formats:
-					if rf in url_map:
-						video_url_list = [(rf, url_map[rf])]
-						break
-				if video_url_list is None:
-					self._downloader.trouble(u'ERROR: requested format not available')
-					return
-		else:
-			self._downloader.trouble(u'ERROR: no conn or url_encoded_fmt_stream_map information found in video info')
-			return
-
-		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,
-					'subtitles':	video_subtitles
-				})
-			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)
-
-		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'<meta property="og:title" content="(?P<title>[^"]*)" />', webpage)
-		if mobj is None:
-			self._downloader.trouble(u'ERROR: unable to extract title')
-			return
-		video_title = _unescapeHTML(mobj.group('title').decode('utf-8'))
-		video_title = sanitize_title(video_title)
-		simple_title = _simplify_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(url, 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 the config JSON
-		config = webpage.split(' = {config:')[1].split(',assets:')[0]
-		try:
-			config = json.loads(config)
-		except:
-			self._downloader.trouble(u'ERROR: unable to extract info section')
-			return
-		
-		# Extract title
-		video_title = config["video"]["title"]
-		simple_title = _simplify_title(video_title)
-
-		# Extract uploader
-		video_uploader = config["video"]["owner"]["name"]
-
-		# Extract video thumbnail
-		video_thumbnail = config["video"]["thumbnail"]
-
-		# Extract video description
-		try:
-			lxml.etree
-		except NameError:
-			video_description = u'No description available.'
-			mobj = re.search(r'<meta name="description" content="(.*?)" />', webpage, re.MULTILINE)
-			if mobj is not None:
-				video_description = mobj.group(1)
-		else:
-			html_parser = lxml.etree.HTMLParser()
-			vwebpage_doc = lxml.etree.parse(StringIO.StringIO(webpage), html_parser)
-			video_description = u''.join(vwebpage_doc.xpath('id("description")//text()')).strip()
-			# TODO use another parser
-
-		# Extract upload date
-		video_upload_date = u'NA'
-		mobj = re.search(r'<span id="clip-date" style="display:none">[^:]*: (.*?)( \([^\(]*\))?</span>', webpage)
-		if mobj is not None:
-			video_upload_date = mobj.group(1)
-
-		# Vimeo specific: extract request signature and timestamp
-		sig = config['request']['signature']
-		timestamp = config['request']['timestamp']
-
-		# Vimeo specific: extract video codec and quality information
-		# TODO bind to format param
-		codecs = [('h264', 'mp4'), ('vp8', 'flv'), ('vp6', 'flv')]
-		for codec in codecs:
-			if codec[0] in config["video"]["files"]:
-				video_codec = codec[0]
-				video_extension = codec[1]
-				if 'hd' in config["video"]["files"][codec[0]]: quality = 'hd'
-				else: quality = 'sd'
-				break
-		else:
-			self._downloader.trouble(u'ERROR: no known codec found')
-			return
-
-		video_url = "http://player.vimeo.com/play_redirect?clip_id=%s&sig=%s&time=%s&quality=%s&codecs=%s&type=moogaloop_local&embed_location=" \
-					%(video_id, sig, timestamp, quality, video_codec.upper())
-
-		try:
-			# Process video information
-			self._downloader.process_info({
-				'id':		video_id,
-				'url':		video_url,
-				'uploader':	video_uploader,
-				'upload_date':	video_upload_date,
-				'title':	video_title,
-				'stitle':	simple_title,
-				'ext':		video_extension,
-				'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 report_following_redirect(self, new_url):
-		"""Report information extraction."""
-		self._downloader.to_screen(u'[redirect] Following redirect to %s' % new_url)
-		
-	def _test_redirect(self, url):
-		"""Check if it is a redirect, like url shorteners, in case restart chain."""
-		class HeadRequest(urllib2.Request):
-			def get_method(self):
-				return "HEAD"
-
-		class HEADRedirectHandler(urllib2.HTTPRedirectHandler):
-			"""
-			Subclass the HTTPRedirectHandler to make it use our 
-			HeadRequest also on the redirected URL
-			"""
-			def redirect_request(self, req, fp, code, msg, headers, newurl): 
-				if code in (301, 302, 303, 307):
-				    newurl = newurl.replace(' ', '%20') 
-				    newheaders = dict((k,v) for k,v in req.headers.items()
-				                      if k.lower() not in ("content-length", "content-type"))
-				    return HeadRequest(newurl, 
-				                       headers=newheaders,
-				                       origin_req_host=req.get_origin_req_host(), 
-				                       unverifiable=True) 
-				else: 
-				    raise urllib2.HTTPError(req.get_full_url(), code, msg, headers, fp) 
-				    
-		class HTTPMethodFallback(urllib2.BaseHandler):
-			"""
-			Fallback to GET if HEAD is not allowed (405 HTTP error)
-			"""
-			def http_error_405(self, req, fp, code, msg, headers): 
-				fp.read()
-				fp.close()
-
-				newheaders = dict((k,v) for k,v in req.headers.items()
-				                  if k.lower() not in ("content-length", "content-type"))
-				return self.parent.open(urllib2.Request(req.get_full_url(), 
-				                                 headers=newheaders, 
-				                                 origin_req_host=req.get_origin_req_host(), 
-				                                 unverifiable=True))
-
-		# Build our opener
-		opener = urllib2.OpenerDirector() 
-		for handler in [urllib2.HTTPHandler, urllib2.HTTPDefaultErrorHandler,
-				        HTTPMethodFallback, HEADRedirectHandler,
-				        urllib2.HTTPErrorProcessor, urllib2.HTTPSHandler]:
-			opener.add_handler(handler())
-
-		response = opener.open(HeadRequest(url))
-		new_url = response.geturl()
-		
-		if url == new_url: return False
-		
-		self.report_following_redirect(new_url)
-		self._downloader.download([new_url])
-		return True
-
-	def _real_extract(self, url):
-		if self._test_redirect(url): return
-		
-		# 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]+'
-	_API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
-	_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 = []
-		pagenum = 0
-		limit = n
-
-		while (50 * pagenum) < limit:
-			self.report_download_page(query, pagenum+1)
-			result_url = self._API_URL % (urllib.quote_plus(query), (50*pagenum)+1)
-			request = urllib2.Request(result_url)
-			try:
-				data = urllib2.urlopen(request).read()
-			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-				self._downloader.trouble(u'ERROR: unable to download API page: %s' % str(err))
-				return
-			api_response = json.loads(data)['data']
-
-			new_ids = list(video['id'] for video in api_response['items'])
-			video_ids += new_ids
-
-			limit = min(n, api_response['totalItems'])
-			pagenum += 1
-
-		if len(video_ids) > n:
-			video_ids = video_ids[:n]
-		for id in video_ids:
-			self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
-		return
-
-
-class GoogleSearchIE(InfoExtractor):
-	"""Information Extractor for Google Video search queries."""
-	_VALID_URL = r'gvsearch(\d+|all)?:[\s\S]+'
-	_TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
-	_VIDEO_INDICATOR = r'<a href="http://video\.google\.com/videoplay\?docid=([^"\&]+)'
-	_MORE_PAGES_INDICATOR = r'class="pn" id="pnnext"'
-	_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 = []
-		pagenum = 0
-
-		while True:
-			self.report_download_page(query, pagenum)
-			result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum*10)
-			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 video_ids:
-					video_ids.append(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_TEMPLATE = r'/watch\?v=(.+?)&amp;list=PL%s&'
-	_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_TEMPLATE % playlist_id, page):
-				if mobj.group(1) not in ids_in_page:
-					ids_in_page.append(mobj.group(1))
-			video_ids.extend(ids_in_page)
-
-			if 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)
-		if playlistend == -1:
-			video_ids = video_ids[playliststart:]
-		else:
-			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(u"[youtube] user %s: Collected %d video ids (downloading %d of them)" %
-				(username, all_ids_count, len(video_ids)))
-
-		for video_id in video_ids:
-			self._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="|var url = ")(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': _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, 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 MixcloudIE(InfoExtractor):
-	"""Information extractor for www.mixcloud.com"""
-	_VALID_URL = r'^(?:https?://)?(?:www\.)?mixcloud\.com/([\w\d-]+)/([\w\d-]+)'
-	IE_NAME = u'mixcloud'
-
-	def __init__(self, downloader=None):
-		InfoExtractor.__init__(self, downloader)
-
-	def report_download_json(self, file_id):
-		"""Report JSON download."""
-		self._downloader.to_screen(u'[%s] Downloading json' % self.IE_NAME)
-
-	def report_extraction(self, file_id):
-		"""Report information extraction."""
-		self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, file_id))
-
-	def get_urls(self, jsonData, fmt, bitrate='best'):
-		"""Get urls from 'audio_formats' section in json"""
-		file_url = None
-		try:
-			bitrate_list = jsonData[fmt]
-			if bitrate is None or bitrate == 'best' or bitrate not in bitrate_list:
-				bitrate = max(bitrate_list) # select highest
-
-			url_list = jsonData[fmt][bitrate]
-		except TypeError: # we have no bitrate info.
-			url_list = jsonData[fmt]
-				
-		return url_list
-
-	def check_urls(self, url_list):
-		"""Returns 1st active url from list"""
-		for url in url_list:
-			try:
-				urllib2.urlopen(url)
-				return url
-			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-				url = None
-
-		return None
-
-	def _print_formats(self, formats):
-		print 'Available formats:'
-		for fmt in formats.keys():
-			for b in formats[fmt]:
-				try:
-					ext = formats[fmt][b][0]
-					print '%s\t%s\t[%s]' % (fmt, b, ext.split('.')[-1])
-				except TypeError: # we have no bitrate info
-					ext = formats[fmt][0]
-					print '%s\t%s\t[%s]' % (fmt, '??', ext.split('.')[-1])
-					break
-
-	def _real_extract(self, url):
-		mobj = re.match(self._VALID_URL, url)
-		if mobj is None:
-			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-			return
-		# extract uploader & filename from url
-		uploader = mobj.group(1).decode('utf-8')
-		file_id = uploader + "-" + mobj.group(2).decode('utf-8')
-
-		# construct API request
-		file_url = 'http://www.mixcloud.com/api/1/cloudcast/' + '/'.join(url.split('/')[-3:-1]) + '.json'
-		# retrieve .json file with links to files
-		request = urllib2.Request(file_url)
-		try:
-			self.report_download_json(file_url)
-			jsonData = urllib2.urlopen(request).read()
-		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-			self._downloader.trouble(u'ERROR: Unable to retrieve file: %s' % str(err))
-			return
-
-		# parse JSON
-		json_data = json.loads(jsonData)
-		player_url = json_data['player_swf_url']
-		formats = dict(json_data['audio_formats'])
-
-		req_format = self._downloader.params.get('format', None)
-		bitrate = None
-
-		if self._downloader.params.get('listformats', None):
-			self._print_formats(formats)
-			return
-
-		if req_format is None or req_format == 'best':
-			for format_param in formats.keys():
-				url_list = self.get_urls(formats, format_param)
-				# check urls
-				file_url = self.check_urls(url_list)
-				if file_url is not None:
-					break # got it!
-		else:
-			if req_format not in formats.keys():
-				self._downloader.trouble(u'ERROR: format is not available')
-				return
-
-			url_list = self.get_urls(formats, req_format)
-			file_url = self.check_urls(url_list)
-			format_param = req_format
-
-		# We have audio
-		self._downloader.increment_downloads()
-		try:
-			# Process file information
-			self._downloader.process_info({
-				'id': file_id.decode('utf-8'),
-				'url': file_url.decode('utf-8'),
-				'uploader':	uploader.decode('utf-8'),
-				'upload_date': u'NA',
-				'title': json_data['name'],
-				'stitle': _simplify_title(json_data['name']),
-				'ext': file_url.split('.')[-1].decode('utf-8'),
-				'format': (format_param is None and u'NA' or format_param.decode('utf-8')),
-				'thumbnail': json_data['thumbnail_url'],
-				'description': json_data['description'],
-				'player_url': player_url.decode('utf-8'),
-			})
-		except UnavailableVideoError, err:
-			self._downloader.trouble(u'ERROR: unable to download file')
-
-class StanfordOpenClassroomIE(InfoExtractor):
-	"""Information extractor for Stanford's Open ClassRoom"""
-
-	_VALID_URL = r'^(?:https?://)?openclassroom.stanford.edu(?P<path>/?|(/MainFolder/(?:HomePage|CoursePage|VideoPage)\.php([?]course=(?P<course>[^&]+)(&video=(?P<video>[^&]+))?(&.*)?)?))$'
-	IE_NAME = u'stanfordoc'
-
-	def report_download_webpage(self, objid):
-		"""Report information extraction."""
-		self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, objid))
-
-	def report_extraction(self, video_id):
-		"""Report information extraction."""
-		self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
-	def _real_extract(self, url):
-		mobj = re.match(self._VALID_URL, url)
-		if mobj is None:
-			self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
-			return
-
-		if mobj.group('course') and mobj.group('video'): # A specific video
-			course = mobj.group('course')
-			video = mobj.group('video')
-			info = {
-				'id': _simplify_title(course + '_' + video),
-			}
-	
-			self.report_extraction(info['id'])
-			baseUrl = 'http://openclassroom.stanford.edu/MainFolder/courses/' + course + '/videos/'
-			xmlUrl = baseUrl + video + '.xml'
-			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' % unicode(err))
-				return
-			mdoc = xml.etree.ElementTree.fromstring(metaXml)
-			try:
-				info['title'] = mdoc.findall('./title')[0].text
-				info['url'] = baseUrl + mdoc.findall('./videoFile')[0].text
-			except IndexError:
-				self._downloader.trouble(u'\nERROR: Invalid metadata XML file')
-				return
-			info['stitle'] = _simplify_title(info['title'])
-			info['ext'] = info['url'].rpartition('.')[2]
-			info['format'] = info['ext']
-			self._downloader.increment_downloads()
-			try:
-				self._downloader.process_info(info)
-			except UnavailableVideoError, err:
-				self._downloader.trouble(u'\nERROR: unable to download video')
-		elif mobj.group('course'): # A course page
-			unescapeHTML = HTMLParser.HTMLParser().unescape
-
-			course = mobj.group('course')
-			info = {
-				'id': _simplify_title(course),
-				'type': 'playlist',
-			}
-
-			self.report_download_webpage(info['id'])
-			try:
-				coursepage = urllib2.urlopen(url).read()
-			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-				self._downloader.trouble(u'ERROR: unable to download course info page: ' + unicode(err))
-				return
-
-			m = re.search('<h1>([^<]+)</h1>', coursepage)
-			if m:
-				info['title'] = unescapeHTML(m.group(1))
-			else:
-				info['title'] = info['id']
-			info['stitle'] = _simplify_title(info['title'])
-
-			m = re.search('<description>([^<]+)</description>', coursepage)
-			if m:
-				info['description'] = unescapeHTML(m.group(1))
-
-			links = _orderedSet(re.findall('<a href="(VideoPage.php\?[^"]+)">', coursepage))
-			info['list'] = [
-				{
-					'type': 'reference',
-					'url': 'http://openclassroom.stanford.edu/MainFolder/' + unescapeHTML(vpage),
-				}
-					for vpage in links]
-
-			for entry in info['list']:
-				assert entry['type'] == 'reference'
-				self.extract(entry['url'])
-		else: # Root page
-			unescapeHTML = HTMLParser.HTMLParser().unescape
-
-			info = {
-				'id': 'Stanford OpenClassroom',
-				'type': 'playlist',
-			}
-
-			self.report_download_webpage(info['id'])
-			rootURL = 'http://openclassroom.stanford.edu/MainFolder/HomePage.php'
-			try:
-				rootpage = urllib2.urlopen(rootURL).read()
-			except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-				self._downloader.trouble(u'ERROR: unable to download course info page: ' + unicode(err))
-				return
-
-			info['title'] = info['id']
-			info['stitle'] = _simplify_title(info['title'])
-
-			links = _orderedSet(re.findall('<a href="(CoursePage.php\?[^"]+)">', rootpage))
-			info['list'] = [
-				{
-					'type': 'reference',
-					'url': 'http://openclassroom.stanford.edu/MainFolder/' + unescapeHTML(cpage),
-				}
-					for cpage in links]
-
-			for entry in info['list']:
-				assert entry['type'] == 'reference'
-				self.extract(entry['url'])
-
-class MTVIE(InfoExtractor):
-	"""Information extractor for MTV.com"""
-
-	_VALID_URL = r'^(?P<proto>https?://)?(?:www\.)?mtv\.com/videos/[^/]+/(?P<videoid>[0-9]+)/[^/]+$'
-	IE_NAME = u'mtv'
-
-	def report_webpage(self, video_id):
-		"""Report information extraction."""
-		self._downloader.to_screen(u'[%s] %s: Downloading webpage' % (self.IE_NAME, video_id))
-
-	def report_extraction(self, video_id):
-		"""Report information extraction."""
-		self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
-
-	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 not mobj.group('proto'):
-			url = 'http://' + url
-		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
-
-		mobj = re.search(r'<meta name="mtv_vt" content="([^"]+)"/>', webpage)
-		if mobj is None:
-			self._downloader.trouble(u'ERROR: unable to extract song name')
-			return
-		song_name = _unescapeHTML(mobj.group(1).decode('iso-8859-1'))
-		mobj = re.search(r'<meta name="mtv_an" content="([^"]+)"/>', webpage)
-		if mobj is None:
-			self._downloader.trouble(u'ERROR: unable to extract performer')
-			return
-		performer = _unescapeHTML(mobj.group(1).decode('iso-8859-1'))
-		video_title = performer + ' - ' + song_name 
-
-		mobj = re.search(r'<meta name="mtvn_uri" content="([^"]+)"/>', webpage)
-		if mobj is None:
-			self._downloader.trouble(u'ERROR: unable to mtvn_uri')
-			return
-		mtvn_uri = mobj.group(1)
-
-		mobj = re.search(r'MTVN.Player.defaultPlaylistId = ([0-9]+);', webpage)
-		if mobj is None:
-			self._downloader.trouble(u'ERROR: unable to extract content id')
-			return
-		content_id = mobj.group(1)
-
-		videogen_url = 'http://www.mtv.com/player/includes/mediaGen.jhtml?uri=' + mtvn_uri + '&id=' + content_id + '&vid=' + video_id + '&ref=www.mtvn.com&viewUri=' + mtvn_uri
-		self.report_extraction(video_id)
-		request = urllib2.Request(videogen_url)
-		try:
-			metadataXml = urllib2.urlopen(request).read()
-		except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-			self._downloader.trouble(u'ERROR: unable to download video metadata: %s' % str(err))
-			return
-
-		mdoc = xml.etree.ElementTree.fromstring(metadataXml)
-		renditions = mdoc.findall('.//rendition')
-
-		# For now, always pick the highest quality.
-		rendition = renditions[-1]
-
-		try:
-			_,_,ext = rendition.attrib['type'].partition('/')
-			format = ext + '-' + rendition.attrib['width'] + 'x' + rendition.attrib['height'] + '_' + rendition.attrib['bitrate']
-			video_url = rendition.find('./src').text
-		except KeyError:
-			self._downloader.trouble('Invalid rendition field.')
-			return
-
-		self._downloader.increment_downloads()
-		info = {
-			'id': video_id,
-			'url': video_url,
-			'uploader': performer,
-			'title': video_title,
-			'stitle': _simplify_title(video_title),
-			'ext': ext,
-			'format': format,
-		}
-
-		try:
-			self._downloader.process_info(info)
-		except UnavailableVideoError, err:
-			self._downloader.trouble(u'\nERROR: unable to download ' + video_id)
-
-
-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 AudioConversionError(BaseException):
-	def __init__(self, message):
-		self.message = message
-
-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', '--', _encodeFilename(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):
-		if codec is None:
-			acodec_opts = []
-		else:
-			acodec_opts = ['-acodec', codec]
-		cmd = ['ffmpeg', '-y', '-i', _encodeFilename(path), '-vn'] + acodec_opts + more_opts + ['--', _encodeFilename(out_path)]
-		try:
-			p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-			stdout,stderr = p.communicate()
-		except (IOError, OSError):
-			e = sys.exc_info()[1]
-			if isinstance(e, OSError) and e.errno == 2:
-				raise AudioConversionError('ffmpeg not found. Please install ffmpeg.')
-			else:
-				raise e
-		if p.returncode != 0:
-			msg = stderr.strip().split('\n')[-1]
-			raise AudioConversionError(msg)
-
-	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 or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
-			if self._preferredcodec == 'm4a' and filecodec == 'aac':
-				# Lossless, but in another container
-				acodec = 'copy'
-				extension = self._preferredcodec
-				more_opts = ['-absf', 'aac_adtstoasc']
-			elif 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', 'm4a': 'aac', 'vorbis': 'libvorbis', 'wav': None}[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 == 'm4a':
-				more_opts += ['-absf', 'aac_adtstoasc']
-			if self._preferredcodec == 'vorbis':
-				extension = 'ogg'
-			if self._preferredcodec == 'wav':
-				extension = 'wav'
-				more_opts += ['-f', 'wav']
-
-		prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups
-		new_path = prefix + sep + extension
-		self._downloader.to_screen(u'[ffmpeg] Destination: ' + new_path)
-		try:
-			self.run_ffmpeg(path, new_path, acodec, more_opts)
-		except:
-			etype,e,tb = sys.exc_info()
-			if isinstance(e, AudioConversionError):
-				self._downloader.to_stderr(u'ERROR: audio conversion failed: ' + e.message)
-			else:
-				self._downloader.to_stderr(u'ERROR: 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(_encodeFilename(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(_encodeFilename(path))
-			except (IOError, OSError):
-				self._downloader.to_stderr(u'WARNING: Unable to remove downloaded video file')
-				return None
-
-		information['filepath'] = new_path
-		return information
 
+from Utils import *
+from FileDownloader import *
+from InfoExtractors import *
+from PostProcessing import *
 
 def updateSelf(downloader, filename):
 	''' Update the program file with the latest version from the repository '''
@@ -4324,7 +51,7 @@ def updateSelf(downloader, filename):
 
 	try:
 		try:
-			urlh = urllib.urlopen(UPDATE_URL)
+			urlh = urllib2.urlopen(UPDATE_URL)
 			newcontent = urlh.read()
 			
 			vmatch = re.search("__version__ = '([^']+)'", newcontent)
@@ -4781,8 +508,3 @@ def main():
 		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: