Imported Upstream version 2010.06.06

[youtubedl] / youtube-dl

diff --git a/youtube-dl b/youtube-dl
index 5afff4e61879526235ff5f262ce4be188c122725..01a61ba12015d03e90659aa107430eab2ecf9acd 100755 (executable)
--- a/youtube-dl
+++ b/youtube-dl
@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 # Author: Ricardo Garcia Gonzalez
 # Author: Danny Colligan
 # -*- coding: utf-8 -*-
 # Author: Ricardo Garcia Gonzalez
 # Author: Danny Colligan

+# Author: Benjamin Johnson

 # License: Public domain code
 import htmlentitydefs
 import httplib
 # License: Public domain code
 import htmlentitydefs
 import httplib


@@ -13,13 +14,20 @@ import os.path
 import re
 import socket
 import string
 import re
 import socket
 import string

+import subprocess

 import sys
 import time
 import urllib
 import urllib2
 
 import sys
 import time
 import urllib
 import urllib2
 

+# 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
+

 std_headers = {
 std_headers = {

-       'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2',
+       'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6',

        'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
        'Accept': 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5',
        'Accept-Language': 'en-us,en;q=0.5',
        'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
        'Accept': 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5',
        'Accept-Language': 'en-us,en;q=0.5',


@@ -33,15 +41,70 @@ def preferredencoding():
        Returns the best encoding scheme for the system, based on
        locale.getpreferredencoding() and some further tweaks.
        """
        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:
        try:

-               pref = locale.getpreferredencoding()
-               # Mac OSX systems have this problem sometimes
-               if pref == '':
-                       return 'UTF-8'
-               return pref
-       except:
-               sys.stderr.write('WARNING: problem obtaining preferred encoding. Falling back to UTF-8.\n')
-               return 'UTF-8'
+               if filename == u'-':
+                       return (sys.stdout, filename)
+               stream = open(filename, open_mode)
+               return (stream, filename)
+       except (IOError, OSError), err:
+               # In case of error, try to remove win32 forbidden chars
+               filename = re.sub(ur'[<>:"\|\?\*]', u'#', filename)
+
+               # An exception here should be caught in the caller
+               stream = open(filename, open_mode)
+               return (stream, filename)
+

 
 class DownloadError(Exception):
        """Download Error exception.
 
 class DownloadError(Exception):
        """Download Error exception.


@@ -130,19 +193,23 @@ class FileDownloader(object):
        ignoreerrors:   Do not stop on download errors.
        ratelimit:      Download speed limit, in bytes/sec.
        nooverwrites:   Prevent overwriting files.
        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 503

        continuedl:     Try to continue downloads if possible.
        continuedl:     Try to continue downloads if possible.

+       noprogress:     Do not print the progress bar.

        """
 
        params = None
        _ies = []
        _pps = []
        _download_retcode = None
        """
 
        params = None
        _ies = []
        _pps = []
        _download_retcode = None

+       _num_downloads = None

 
        def __init__(self, params):
                """Create a FileDownloader object with the given options."""
                self._ies = []
                self._pps = []
                self._download_retcode = 0
 
        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.params = params
        
        @staticmethod
                self.params = params
        
        @staticmethod


@@ -239,11 +306,15 @@ class FileDownloader(object):
                self._pps.append(pp)
                pp.set_downloader(self)
        
                self._pps.append(pp)
                pp.set_downloader(self)
        

-       def to_stdout(self, message, skip_eol=False):
+       def to_stdout(self, message, skip_eol=False, ignore_encoding_errors=False):

                """Print message to stdout if not in quiet mode."""
                """Print message to stdout if not in quiet mode."""

-               if not self.params.get('quiet', False):
-                       print (u'%s%s' % (message, [u'\n', u''][skip_eol])).encode(preferredencoding()),
+               try:
+                       if not self.params.get('quiet', False):
+                               print (u'%s%s' % (message, [u'\n', u''][skip_eol])).encode(preferredencoding()),

                        sys.stdout.flush()
                        sys.stdout.flush()

+               except (UnicodeEncodeError), err:
+                       if not ignore_encoding_errors:
+                               raise

        
        def to_stderr(self, message):
                """Print message to stderr."""
        
        def to_stderr(self, message):
                """Print message to stderr."""


@@ -281,10 +352,12 @@ class FileDownloader(object):
 
        def report_destination(self, filename):
                """Report destination filename."""
 
        def report_destination(self, filename):
                """Report destination filename."""

-               self.to_stdout(u'[download] Destination: %s' % filename)
+               self.to_stdout(u'[download] Destination: %s' % filename, ignore_encoding_errors=True)

        
        def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
                """Report download progress."""
        
        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_stdout(u'\r[download] %s of %s at %s ETA %s' %
                                (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
 
                self.to_stdout(u'\r[download] %s of %s at %s ETA %s' %
                                (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
 


@@ -292,9 +365,16 @@ class FileDownloader(object):
                """Report attemtp to resume at given byte."""
                self.to_stdout(u'[download] Resuming download at byte %s' % resume_len)
        
                """Report attemtp to resume at given byte."""
                self.to_stdout(u'[download] Resuming download at byte %s' % resume_len)
        

+       def report_retry(self, count, retries):
+               """Report retry in case of HTTP error 503"""
+               self.to_stdout(u'[download] Got HTTP error 503. Retrying (attempt %d of %d)...' % (count, retries))
+       

        def report_file_already_downloaded(self, file_name):
                """Report file has already been fully downloaded."""
        def report_file_already_downloaded(self, file_name):
                """Report file has already been fully downloaded."""

-               self.to_stdout(u'[download] %s has already been downloaded' % file_name)
+               try:
+                       self.to_stdout(u'[download] %s has already been downloaded' % file_name)
+               except (UnicodeEncodeError), err:
+                       self.to_stdout(u'[download] The file has already been downloaded')

        
        def report_unable_to_resume(self):
                """Report it was impossible to resume download."""
        
        def report_unable_to_resume(self):
                """Report it was impossible to resume download."""


@@ -302,32 +382,42 @@ class FileDownloader(object):
        
        def report_finish(self):
                """Report download finished."""
        
        def report_finish(self):
                """Report download finished."""

-               self.to_stdout(u'')
+               if self.params.get('noprogress', False):
+                       self.to_stdout(u'[download] Download completed')
+               else:
+                       self.to_stdout(u'')

 
        def process_info(self, info_dict):
                """Process a single dictionary returned by an InfoExtractor."""
                # Do nothing else if in simulate mode
                if self.params.get('simulate', False):
 
        def process_info(self, info_dict):
                """Process a single dictionary returned by an InfoExtractor."""
                # Do nothing else if in simulate mode
                if self.params.get('simulate', False):

-                       try:
-                               info_dict['url'] = self.verify_url(info_dict['url'])
-                       except (OSError, IOError, urllib2.URLError, httplib.HTTPException, socket.error), err:
-                               raise UnavailableFormatError
+                       # Verify URL if it's an HTTP one
+                       if info_dict['url'].startswith('http'):
+                               try:
+                                       self.verify_url(info_dict['url'].encode('utf-8')).decode('utf-8')
+                               except (OSError, IOError, urllib2.URLError, httplib.HTTPException, socket.error), err:
+                                       raise UnavailableFormatError

 
                        # Forced printings
                        if self.params.get('forcetitle', False):
 
                        # Forced printings
                        if self.params.get('forcetitle', False):

-                               print info_dict['title'].encode(preferredencoding())
+                               print info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace')

                        if self.params.get('forceurl', False):
                        if self.params.get('forceurl', False):

-                               print info_dict['url'].encode(preferredencoding())
+                               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')

 
                        return
                        
                try:
                        template_dict = dict(info_dict)
                        template_dict['epoch'] = unicode(long(time.time()))
 
                        return
                        
                try:
                        template_dict = dict(info_dict)
                        template_dict['epoch'] = unicode(long(time.time()))

+                       template_dict['ord'] = unicode('%05d' % self._num_downloads)

                        filename = self.params['outtmpl'] % template_dict
                except (ValueError, KeyError), err:
                        self.trouble('ERROR: invalid output template or system charset: %s' % str(err))
                        filename = self.params['outtmpl'] % template_dict
                except (ValueError, KeyError), err:
                        self.trouble('ERROR: invalid output template or system charset: %s' % str(err))

-               if self.params['nooverwrites'] and os.path.exists(filename):
+               if self.params.get('nooverwrites', False) and os.path.exists(filename):

                        self.to_stderr(u'WARNING: file exists: %s; skipping' % filename)
                        return
 
                        self.to_stderr(u'WARNING: file exists: %s; skipping' % filename)
                        return
 


@@ -338,7 +428,7 @@ class FileDownloader(object):
                        return
 
                try:
                        return
 
                try:

-                       success = self._do_download(filename, info_dict['url'])
+                       success = self._do_download(filename, info_dict['url'].encode('utf-8'), info_dict.get('player_url', None))

                except (OSError, IOError), err:
                        raise UnavailableFormatError
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:
                except (OSError, IOError), err:
                        raise UnavailableFormatError
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:


@@ -390,36 +480,87 @@ class FileDownloader(object):
                        if info is None:
                                break
        
                        if info is None:
                                break
        

-       def _do_download(self, filename, url):
-               stream = None
-               open_mode = 'ab'
+       def _download_with_rtmpdump(self, filename, url, player_url):
+               self.report_destination(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', filename]
+               retval = subprocess.call(basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)])
+               while retval == 2 or retval == 1:
+                       prevsize = os.path.getsize(filename)
+                       self.to_stdout(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(filename)
+                       if prevsize == cursize and retval == 1:
+                               break
+               if retval == 0:
+                       self.to_stdout(u'\r[rtmpdump] %s bytes' % os.path.getsize(filename))
+                       return True
+               else:
+                       self.trouble('\nERROR: rtmpdump exited with code %d' % retval)
+                       return False
+
+       def _do_download(self, filename, url, player_url):
+               # Attempt to download using rtmpdump
+               if url.startswith('rtmp'):
+                       return self._download_with_rtmpdump(filename, url, player_url)
+
+               stream = None
+               open_mode = 'wb'

                basic_request = urllib2.Request(url, None, std_headers)
                request = urllib2.Request(url, None, std_headers)
 
                basic_request = urllib2.Request(url, None, std_headers)
                request = urllib2.Request(url, None, std_headers)
 

-               # Attempt to resume download with "continuedl" option
+               # Establish possible resume length

                if os.path.isfile(filename):
                        resume_len = os.path.getsize(filename)
                else:
                        resume_len = 0
                if os.path.isfile(filename):
                        resume_len = os.path.getsize(filename)
                else:
                        resume_len = 0

-               if self.params['continuedl'] and resume_len != 0:
+
+               # Request parameters in case of being able to resume
+               if self.params.get('continuedl', False) and resume_len != 0:

                        self.report_resuming_byte(resume_len)
                        request.add_header('Range','bytes=%d-' % resume_len)
                        self.report_resuming_byte(resume_len)
                        request.add_header('Range','bytes=%d-' % resume_len)

+                       open_mode = 'ab'

 
 

-               # Establish connection
-               try:
-                       data = urllib2.urlopen(request)
-               except (urllib2.HTTPError, ), err:
-                       if err.code != 416: #  416 is 'Requested range not satisfiable'
-                               raise
-                       data = urllib2.urlopen(basic_request)
-                       content_length = data.info()['Content-Length']
-                       if content_length is not None and long(content_length) == resume_len:
-                               self.report_file_already_downloaded(filename)
-                               return True
-                       else:
-                               self.report_unable_to_resume()
-                               open_mode = 'wb'
+               count = 0
+               retries = self.params.get('retries', 0)
+               while True:
+                       # Establish connection
+                       try:
+                               data = urllib2.urlopen(request)
+                               break
+                       except (urllib2.HTTPError, ), err:
+                               if err.code == 503:
+                                       # Retry in case of HTTP error 503
+                                       count += 1
+                                       if count <= retries:
+                                               self.report_retry(count, retries)
+                                               continue
+                               if err.code != 416: #  416 is 'Requested range not satisfiable'
+                                       raise
+                               # Unable to resume
+                               data = urllib2.urlopen(basic_request)
+                               content_length = data.info()['Content-Length']
+
+                               if content_length is not None and long(content_length) == resume_len:
+                                       # Because the file had already been fully downloaded
+                                       self.report_file_already_downloaded(filename)
+                                       self._num_downloads += 1
+                                       return True
+                               else:
+                                       # Because the server didn't let us
+                                       self.report_unable_to_resume()
+                                       open_mode = 'wb'

 
                data_len = data.info().get('Content-length', None)
                data_len_str = self.format_bytes(data_len)
 
                data_len = data.info().get('Content-length', None)
                data_len_str = self.format_bytes(data_len)


@@ -439,12 +580,16 @@ class FileDownloader(object):
                        # Open file just in time
                        if stream is None:
                                try:
                        # Open file just in time
                        if stream is None:
                                try:

-                                       stream = open(filename, open_mode)
+                                       (stream, filename) = sanitize_open(filename, open_mode)

                                        self.report_destination(filename)
                                        self.report_destination(filename)

+                                       self._num_downloads += 1

                                except (OSError, IOError), err:
                                        self.trouble('ERROR: unable to open for writing: %s' % str(err))
                                        return False
                                except (OSError, IOError), err:
                                        self.trouble('ERROR: unable to open for writing: %s' % str(err))
                                        return False

-                       stream.write(data_block)
+                       try:
+                               stream.write(data_block)
+                       except (IOError, OSError), err:
+                               self.trouble('\nERROR: unable to write data: %s' % str(err))

                        block_size = self.best_block_size(after - before, data_block_len)
 
                        # Progress message
                        block_size = self.best_block_size(after - before, data_block_len)
 
                        # Progress message


@@ -479,6 +624,16 @@ class InfoExtractor(object):
        title:          Literal title.
        stitle:         Simplified title.
        ext:            Video filename extension.
        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, as well as the suitable() static method.
 
        Subclasses of this one should re-define the _real_initialize() and
        _real_extract() methods, as well as the suitable() static method.


@@ -525,46 +680,26 @@ class InfoExtractor(object):
 class YoutubeIE(InfoExtractor):
        """Information extractor for youtube.com."""
 
 class YoutubeIE(InfoExtractor):
        """Information extractor for youtube.com."""
 

-       _VALID_URL = r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:(?:v/)|(?:(?:watch(?:\.php)?)?\?(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$'
+       _VALID_URL = r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:(?:v/)|(?:(?:watch(?:\.php)?)?[\?#](?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$'

        _LANG_URL = r'http://uk.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
        _LOGIN_URL = 'http://www.youtube.com/signup?next=/&gl=US&hl=en'
        _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
        _NETRC_MACHINE = 'youtube'
        _LANG_URL = r'http://uk.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
        _LOGIN_URL = 'http://www.youtube.com/signup?next=/&gl=US&hl=en'
        _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
        _NETRC_MACHINE = 'youtube'

-       _available_formats = ['22', '35', '18', '5', '17', '13', None] # listed in order of priority for -b flag
+       _available_formats = ['37', '22', '35', '18', '34', '5', '17', '13', None] # listed in order of priority for -b flag

        _video_extensions = {
                '13': '3gp',
                '17': 'mp4',
                '18': 'mp4',
                '22': 'mp4',
        _video_extensions = {
                '13': '3gp',
                '17': 'mp4',
                '18': 'mp4',
                '22': 'mp4',

+               '37': 'mp4',
+               '43': 'webm',
+               '45': 'webm',

        }
 
        @staticmethod
        def suitable(url):
                return (re.match(YoutubeIE._VALID_URL, url) is not None)
 
        }
 
        @staticmethod
        def suitable(url):
                return (re.match(YoutubeIE._VALID_URL, url) is not None)
 

-       @staticmethod
-       def htmlentity_transform(matchobj):
-               """Transforms an HTML entity to a Unicode character."""
-               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 report_lang(self):
                """Report attempt to set language."""
                self._downloader.to_stdout(u'[youtube] Setting language')
        def report_lang(self):
                """Report attempt to set language."""
                self._downloader.to_stdout(u'[youtube] Setting language')


@@ -577,6 +712,10 @@ class YoutubeIE(InfoExtractor):
                """Report attempt to confirm age."""
                self._downloader.to_stdout(u'[youtube] Confirming age')
        
                """Report attempt to confirm age."""
                self._downloader.to_stdout(u'[youtube] Confirming age')
        

+       def report_video_webpage_download(self, video_id):
+               """Report attempt to download video webpage."""
+               self._downloader.to_stdout(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_stdout(u'[youtube] %s: Downloading video info webpage' % video_id)
        def report_video_info_webpage_download(self, video_id):
                """Report attempt to download video info webpage."""
                self._downloader.to_stdout(u'[youtube] %s: Downloading video info webpage' % video_id)


@@ -589,6 +728,10 @@ class YoutubeIE(InfoExtractor):
                """Report extracted video URL."""
                self._downloader.to_stdout(u'[youtube] %s: Format %s not available' % (video_id, format))
        
                """Report extracted video URL."""
                self._downloader.to_stdout(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_stdout(u'[youtube] RTMP download detected')
+       

        def _real_initialize(self):
                if self._downloader is None:
                        return
        def _real_initialize(self):
                if self._downloader is None:
                        return


@@ -668,6 +811,7 @@ class YoutubeIE(InfoExtractor):
 
                # Downloader parameters
                best_quality = False
 
                # Downloader parameters
                best_quality = False

+               all_formats = False

                format_param = None
                quality_index = 0
                if self._downloader is not None:
                format_param = None
                quality_index = 0
                if self._downloader is not None:


@@ -676,62 +820,100 @@ class YoutubeIE(InfoExtractor):
                        if format_param == '0':
                                format_param = self._available_formats[quality_index]
                                best_quality = True
                        if format_param == '0':
                                format_param = self._available_formats[quality_index]
                                best_quality = True

+                       elif format_param == '-1':
+                               format_param = self._available_formats[quality_index]
+                               all_formats = True

 
                while True:
                        # Extension
                        video_extension = self._video_extensions.get(format_param, 'flv')
 
 
                while True:
                        # Extension
                        video_extension = self._video_extensions.get(format_param, 'flv')
 

-                       # Get video info
-                       video_info_url = 'http://www.youtube.com/get_video_info?&video_id=%s&el=detailpage&ps=default&eurl=&gl=US&hl=en' % video_id
-                       request = urllib2.Request(video_info_url, None, std_headers)
+                       # Get video webpage
+                       self.report_video_webpage_download(video_id)
+                       request = urllib2.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en' % video_id, None, std_headers)

                        try:
                        try:

-                               self.report_video_info_webpage_download(video_id)
-                               video_info_webpage = urllib2.urlopen(request).read()
+                               video_webpage = urllib2.urlopen(request).read()

                        except (urllib2.URLError, httplib.HTTPException, socket.error), err:
                        except (urllib2.URLError, httplib.HTTPException, socket.error), err:

-                               self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
+                               self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))

                                return
                                return

+
+                       # Attempt to extract SWF player URL
+                       mobj = re.search(r'swfConfig.*"(http://.*?watch-.*?\.swf)"', video_webpage)
+                       if mobj is not None:
+                               player_url = 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, None, std_headers)
+                               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

                        self.report_information_extraction(video_id)
 
                        # "t" param
                        self.report_information_extraction(video_id)
 
                        # "t" param

-                       mobj = re.search(r'(?m)&token=([^&]+)(?:&|$)', video_info_webpage)
-                       if mobj is None:
+                       if 'token' not in video_info:

                                # Attempt to see if YouTube has issued an error message
                                # Attempt to see if YouTube has issued an error message

-                               mobj = re.search(r'(?m)&reason=([^&]+)(?:&|$)', video_info_webpage)
-                               if mobj is None:
+                               if 'reason' not in video_info:

                                        self._downloader.trouble(u'ERROR: unable to extract "t" parameter for unknown reason')
                                        stream = open('reportme-ydl-%s.dat' % time.time(), 'wb')
                                        stream.write(video_info_webpage)
                                        stream.close()
                                else:
                                        self._downloader.trouble(u'ERROR: unable to extract "t" parameter for unknown reason')
                                        stream = open('reportme-ydl-%s.dat' % time.time(), 'wb')
                                        stream.write(video_info_webpage)
                                        stream.close()
                                else:

-                                       reason = urllib.unquote_plus(mobj.group(1))
+                                       reason = urllib.unquote_plus(video_info['reason'][0])

                                        self._downloader.trouble(u'ERROR: YouTube said: %s' % reason.decode('utf-8'))
                                return
                                        self._downloader.trouble(u'ERROR: YouTube said: %s' % reason.decode('utf-8'))
                                return

-                       token = urllib.unquote(mobj.group(1))
+                       token = urllib.unquote_plus(video_info['token'][0])

                        video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s&eurl=&el=detailpage&ps=default&gl=US&hl=en' % (video_id, token)
                        if format_param is not None:
                                video_real_url = '%s&fmt=%s' % (video_real_url, format_param)
 
                        video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s&eurl=&el=detailpage&ps=default&gl=US&hl=en' % (video_id, token)
                        if format_param is not None:
                                video_real_url = '%s&fmt=%s' % (video_real_url, format_param)
 

+                       # Check possible RTMP download
+                       if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
+                               self.report_rtmp_download()
+                               video_real_url = video_info['conn'][0]
+

                        # uploader
                        # uploader

-                       mobj = re.search(r'(?m)&author=([^&]+)(?:&|$)', video_info_webpage)
-                       if mobj is None:
+                       if 'author' not in video_info:

                                self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
                                return
                                self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
                                return

-                       video_uploader = urllib.unquote(mobj.group(1))
+                       video_uploader = urllib.unquote_plus(video_info['author'][0])

 
                        # title
 
                        # title

-                       mobj = re.search(r'(?m)&title=([^&]+)(?:&|$)', video_info_webpage)
-                       if mobj is None:
+                       if 'title' not in video_info:

                                self._downloader.trouble(u'ERROR: unable to extract video title')
                                return
                                self._downloader.trouble(u'ERROR: unable to extract video title')
                                return

-                       video_title = urllib.unquote(mobj.group(1))
+                       video_title = urllib.unquote_plus(video_info['title'][0])

                        video_title = video_title.decode('utf-8')
                        video_title = video_title.decode('utf-8')

-                       video_title = re.sub(ur'(?u)&(.+?);', self.htmlentity_transform, video_title)
-                       video_title = video_title.replace(os.sep, u'%')
+                       video_title = sanitize_title(video_title)

 
                        # simplified title
                        simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
                        simple_title = simple_title.strip(ur'_')
 
 
                        # simplified title
                        simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
                        simple_title = simple_title.strip(ur'_')
 

+                       # 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])
+
+                       # description
+                       video_description = 'No description available.'
+                       if self._downloader.params.get('forcedescription', False):
+                               mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', video_webpage)
+                               if mobj is not None:
+                                       video_description = mobj.group(1)
+

                        try:
                                # Process video information
                                self._downloader.process_info({
                        try:
                                # Process video information
                                self._downloader.process_info({


@@ -741,19 +923,32 @@ class YoutubeIE(InfoExtractor):
                                        'title':        video_title,
                                        'stitle':       simple_title,
                                        'ext':          video_extension.decode('utf-8'),
                                        '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':   player_url,

                                })
 
                                })
 

+                               if all_formats:
+                                       quality_index += 1
+                                       if quality_index == len(self._available_formats):
+                                               # None left to get
+                                               return
+                                       else:
+                                               format_param = self._available_formats[quality_index]
+                                               continue

                                return
 
                        except UnavailableFormatError, err:
                                return
 
                        except UnavailableFormatError, err:

-                               if best_quality:
-                                       if quality_index == len(self._available_formats) - 1:
+                               if best_quality or all_formats:
+                                       quality_index += 1
+                                       if quality_index == len(self._available_formats):

                                                # I don't ever expect this to happen
                                                # I don't ever expect this to happen

-                                               self._downloader.trouble(u'ERROR: no known formats available for video')
+                                               if not all_formats:
+                                                       self._downloader.trouble(u'ERROR: no known formats available for video')

                                                return
                                        else:
                                                self.report_unavailable_format(video_id, format_param)
                                                return
                                        else:
                                                self.report_unavailable_format(video_id, format_param)

-                                               quality_index += 1

                                                format_param = self._available_formats[quality_index]
                                                continue
                                else: 
                                                format_param = self._available_formats[quality_index]
                                                continue
                                else: 


@@ -866,8 +1061,9 @@ class MetacafeIE(InfoExtractor):
                        self._downloader.trouble(u'ERROR: unable to extract title')
                        return
                video_title = mobj.group(1).decode('utf-8')
                        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)<li id="ChnlUsr">.*?Submitter:.*?<a .*?>(.*?)<', webpage)
+               mobj = re.search(r'(?ms)By:\s*<a .*?>(.+?)<', webpage)

                if mobj is None:
                        self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
                        return
                if mobj is None:
                        self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
                        return


@@ -882,172 +1078,851 @@ class MetacafeIE(InfoExtractor):
                                'title':        video_title,
                                'stitle':       simple_title,
                                'ext':          video_extension.decode('utf-8'),
                                'title':        video_title,
                                'stitle':       simple_title,
                                'ext':          video_extension.decode('utf-8'),

+                               'format':       u'NA',
+                               'player_url':   None,

                        })
                except UnavailableFormatError:
                        self._downloader.trouble(u'ERROR: format not available for video')
 
 
                        })
                except UnavailableFormatError:
                        self._downloader.trouble(u'ERROR: format not available for video')
 
 

-class YoutubeSearchIE(InfoExtractor):
-       """Information Extractor for YouTube search queries."""
-       _VALID_QUERY = r'ytsearch(\d+|all)?:[\s\S]+'
-       _TEMPLATE_URL = 'http://www.youtube.com/results?search_query=%s&page=%s&gl=US&hl=en'
-       _VIDEO_INDICATOR = r'href="/watch\?v=.+?"'
-       _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
-       _youtube_ie = None
-       _max_youtube_results = 1000
+class GoogleIE(InfoExtractor):
+       """Information extractor for video.google.com."""

 
 

-       def __init__(self, youtube_ie, downloader=None):
+       _VALID_URL = r'(?:http://)?video\.google\.(?:com(?:\.au)?|co\.(?:uk|jp|kr|cr)|ca|de|es|fr|it|nl|pl)/videoplay\?docid=([^\&]+).*'
+
+       def __init__(self, downloader=None):

                InfoExtractor.__init__(self, downloader)
                InfoExtractor.__init__(self, downloader)

-               self._youtube_ie = youtube_ie
-       
+

        @staticmethod
        def suitable(url):
        @staticmethod
        def suitable(url):

-               return (re.match(YoutubeSearchIE._VALID_QUERY, url) is not None)
+               return (re.match(GoogleIE._VALID_URL, url) is not None)

 
 

-       def report_download_page(self, query, pagenum):
-               """Report attempt to download playlist page with given number."""
-               self._downloader.to_stdout(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
+       def report_download_webpage(self, video_id):
+               """Report webpage download."""
+               self._downloader.to_stdout(u'[video.google] %s: Downloading webpage' % video_id)
+
+       def report_extraction(self, video_id):
+               """Report information extraction."""
+               self._downloader.to_stdout(u'[video.google] %s: Extracting information' % video_id)

 
        def _real_initialize(self):
 
        def _real_initialize(self):

-               self._youtube_ie.initialize()
-       
-       def _real_extract(self, query):
-               mobj = re.match(self._VALID_QUERY, query)
+               return
+
+       def _real_extract(self, url):
+               # Extract id from URL
+               mobj = re.match(self._VALID_URL, url)

                if mobj is None:
                if mobj is None:

-                       self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)

                        return
 
                        return
 

-               prefix, query = query.split(':')
-               prefix = prefix[8:]
-               if prefix == '':
-                       self._download_n_results(query, 1)
+               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
                        return

-               elif prefix == 'all':
-                       self._download_n_results(query, self._max_youtube_results)
+
+               # 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
                        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
+               mediaURL = urllib.unquote(mobj.group(1))
+               mediaURL = mediaURL.replace('\\x3d', '\x3d')
+               mediaURL = mediaURL.replace('\\x26', '\x26')

 
 

-       def _download_n_results(self, query, n):
-               """Downloads a specified number of results for a query"""
+               video_url = mediaURL

 
 

-               video_ids = []
-               already_seen = set()
-               pagenum = 1
+               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 = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)

 
 

-               while True:
-                       self.report_download_page(query, pagenum)
-                       result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
-                       request = urllib2.Request(result_url, None, std_headers)
+               # 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:
                        try:

-                               page = urllib2.urlopen(request).read()
+                               webpage = urllib2.urlopen(request).read()

                        except (urllib2.URLError, httplib.HTTPException, socket.error), err:
                        except (urllib2.URLError, httplib.HTTPException, socket.error), err:

-                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(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
                                return

+                       video_thumbnail = mobj.group(1)
+               else:   # we need something to pass to process_info
+                       video_thumbnail = ''

 
 

-                       # Extract video identifiers
-                       for mobj in re.finditer(self._VIDEO_INDICATOR, page):
-                               video_id = page[mobj.span()[0]:mobj.span()[1]].split('=')[2][:-1]
-                               if video_id not in already_seen:
-                                       video_ids.append(video_id)
-                                       already_seen.add(video_id)
-                                       if len(video_ids) == n:
-                                               # Specified n videos reached
-                                               for id in video_ids:
-                                                       self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
-                                               return

 
 

-                       if re.search(self._MORE_PAGES_INDICATOR, page) is None:
-                               for id in video_ids:
-                                       self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
-                               return
+               try:
+                       # Process video information
+                       self._downloader.process_info({
+                               'id':           video_id.decode('utf-8'),
+                               'url':          video_url.decode('utf-8'),
+                               'uploader':     u'NA',
+                               'title':        video_title,
+                               'stitle':       simple_title,
+                               'ext':          video_extension.decode('utf-8'),
+                               'format':       u'NA',
+                               'player_url':   None,
+                       })
+               except UnavailableFormatError:
+                       self._downloader.trouble(u'ERROR: format not available for video')

 
 

-                       pagenum = pagenum + 1

 
 

-class YoutubePlaylistIE(InfoExtractor):
-       """Information Extractor for YouTube playlists."""
+class PhotobucketIE(InfoExtractor):
+       """Information extractor for photobucket.com."""

 
 

-       _VALID_URL = r'(?:http://)?(?:\w+\.)?youtube.com/(?:view_play_list|my_playlists)\?.*?p=([^&]+).*'
-       _TEMPLATE_URL = 'http://www.youtube.com/view_play_list?p=%s&page=%s&gl=US&hl=en'
-       _VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
-       _MORE_PAGES_INDICATOR = r'/view_play_list?p=%s&page=%s'
-       _youtube_ie = None
+       _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'

 
 

-       def __init__(self, youtube_ie, downloader=None):
+       def __init__(self, downloader=None):

                InfoExtractor.__init__(self, downloader)
                InfoExtractor.__init__(self, downloader)

-               self._youtube_ie = youtube_ie
-       
+

        @staticmethod
        def suitable(url):
        @staticmethod
        def suitable(url):

-               return (re.match(YoutubePlaylistIE._VALID_URL, url) is not None)
+               return (re.match(PhotobucketIE._VALID_URL, url) is not None)

 
 

-       def report_download_page(self, playlist_id, pagenum):
-               """Report attempt to download playlist page with given number."""
-               self._downloader.to_stdout(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
+       def report_download_webpage(self, video_id):
+               """Report webpage download."""
+               self._downloader.to_stdout(u'[photobucket] %s: Downloading webpage' % video_id)
+
+       def report_extraction(self, video_id):
+               """Report information extraction."""
+               self._downloader.to_stdout(u'[photobucket] %s: Extracting information' % video_id)

 
        def _real_initialize(self):
 
        def _real_initialize(self):

-               self._youtube_ie.initialize()
-       
+               return
+

        def _real_extract(self, url):
        def _real_extract(self, url):

-               # Extract playlist id
+               # Extract id from URL

                mobj = re.match(self._VALID_URL, url)
                if mobj is None:
                mobj = re.match(self._VALID_URL, url)
                if mobj is None:

-                       self._downloader.trouble(u'ERROR: invalid url: %s' % url)
+                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)

                        return
 
                        return
 

-               # Download playlist pages
-               playlist_id = mobj.group(1)
-               video_ids = []
-               pagenum = 1
+               video_id = mobj.group(1)

 
 

-               while True:
-                       self.report_download_page(playlist_id, pagenum)
-                       request = urllib2.Request(self._TEMPLATE_URL % (playlist_id, pagenum), None, std_headers)
-                       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
+               video_extension = 'flv'

 
 

-                       # 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)
+               # 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

 
 

-                       if (self._MORE_PAGES_INDICATOR % (playlist_id.upper(), pagenum + 1)) not in page:
-                               break
-                       pagenum = pagenum + 1
+               # 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))

 
 

-               for id in video_ids:
-                       self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
-               return
+               video_url = mediaURL

 
 

-class PostProcessor(object):
-       """Post Processor class.
+               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 = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)

 
 

-       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.
+               video_uploader = mobj.group(2).decode('utf-8')

 
 

-       The chain will be stopped if one of them ever returns None or the end
-       of the chain is reached.
+               try:
+                       # Process video information
+                       self._downloader.process_info({
+                               'id':           video_id.decode('utf-8'),
+                               'url':          video_url.decode('utf-8'),
+                               'uploader':     video_uploader,
+                               'title':        video_title,
+                               'stitle':       simple_title,
+                               'ext':          video_extension.decode('utf-8'),
+                               'format':       u'NA',
+                               'player_url':   None,
+                       })
+               except UnavailableFormatError:
+                       self._downloader.trouble(u'ERROR: format not available for 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]+)(?:[#\?].*)?'
+
+       def __init__(self, downloader=None):
+               InfoExtractor.__init__(self, downloader)
+
+       @staticmethod
+       def suitable(url):
+               return (re.match(YahooIE._VALID_URL, url) is not None)
+
+       def report_download_webpage(self, video_id):
+               """Report webpage download."""
+               self._downloader.to_stdout(u'[video.yahoo] %s: Downloading webpage' % video_id)
+
+       def report_extraction(self, video_id):
+               """Report information extraction."""
+               self._downloader.to_stdout(u'[video.yahoo] %s: Extracting information' % video_id)
+
+       def _real_initialize(self):
+               return
+
+       def _real_extract(self, url):
+               # Extract ID from URL
+               mobj = re.match(self._VALID_URL, url)
+               if mobj is None:
+                       self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
+                       return
+
+               video_id = mobj.group(2)
+               video_extension = 'flv'
+
+               # Rewrite valid but non-extractable URLs as
+               # extractable English language /watch/ URLs
+               if re.match(self._VPAGE_URL, url) is None:
+                       request = 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)
+
+               # 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 = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', 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,
+                               'title':        video_title,
+                               'stitle':       simple_title,
+                               'ext':          video_extension.decode('utf-8'),
+                               'thumbnail':    video_thumbnail.decode('utf-8'),
+                               'description':  video_description,
+                               'thumbnail':    video_thumbnail,
+                               'description':  video_description,
+                               'player_url':   None,
+                       })
+               except UnavailableFormatError:
+                       self._downloader.trouble(u'ERROR: format not available for video')
+
+
+class GenericIE(InfoExtractor):
+       """Generic last-resort information extractor."""
+
+       def __init__(self, downloader=None):
+               InfoExtractor.__init__(self, downloader)
+
+       @staticmethod
+       def suitable(url):
+               return True
+
+       def report_download_webpage(self, video_id):
+               """Report webpage download."""
+               self._downloader.to_stdout(u'WARNING: Falling back on generic information extractor.')
+               self._downloader.to_stdout(u'[generic] %s: Downloading webpage' % video_id)
+
+       def report_extraction(self, video_id):
+               """Report information extraction."""
+               self._downloader.to_stdout(u'[generic] %s: Extracting information' % video_id)
+
+       def _real_initialize(self):
+               return
+
+       def _real_extract(self, url):
+               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
+
+               # 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 = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', 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,
+                               'title':        video_title,
+                               'stitle':       simple_title,
+                               'ext':          video_extension.decode('utf-8'),
+                               'format':       u'NA',
+                               'player_url':   None,
+                       })
+               except UnavailableFormatError:
+                       self._downloader.trouble(u'ERROR: format not available for video')
+
+
+class YoutubeSearchIE(InfoExtractor):
+       """Information Extractor for YouTube search queries."""
+       _VALID_QUERY = r'ytsearch(\d+|all)?:[\s\S]+'
+       _TEMPLATE_URL = 'http://www.youtube.com/results?search_query=%s&page=%s&gl=US&hl=en'
+       _VIDEO_INDICATOR = r'href="/watch\?v=.+?"'
+       _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
+       _youtube_ie = None
+       _max_youtube_results = 1000
+
+       def __init__(self, youtube_ie, downloader=None):
+               InfoExtractor.__init__(self, downloader)
+               self._youtube_ie = youtube_ie
+       
+       @staticmethod
+       def suitable(url):
+               return (re.match(YoutubeSearchIE._VALID_QUERY, url) is not None)
+
+       def report_download_page(self, query, pagenum):
+               """Report attempt to download playlist page with given number."""
+               query = query.decode(preferredencoding())
+               self._downloader.to_stdout(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_QUERY, query)
+               if mobj is None:
+                       self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+                       return
+
+               prefix, query = query.split(':')
+               prefix = prefix[8:]
+               query  = query.encode('utf-8')
+               if prefix == '':
+                       self._download_n_results(query, 1)
+                       return
+               elif prefix == 'all':
+                       self._download_n_results(query, self._max_youtube_results)
+                       return
+               else:
+                       try:
+                               n = long(prefix)
+                               if n <= 0:
+                                       self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+                                       return
+                               elif n > self._max_youtube_results:
+                                       self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)'  % (self._max_youtube_results, n))
+                                       n = self._max_youtube_results
+                               self._download_n_results(query, n)
+                               return
+                       except ValueError: # parsing prefix as integer fails
+                               self._download_n_results(query, 1)
+                               return
+
+       def _download_n_results(self, query, n):
+               """Downloads a specified number of results for a query"""
+
+               video_ids = []
+               already_seen = set()
+               pagenum = 1
+
+               while True:
+                       self.report_download_page(query, pagenum)
+                       result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
+                       request = urllib2.Request(result_url, None, std_headers)
+                       try:
+                               page = urllib2.urlopen(request).read()
+                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+                               return
+
+                       # Extract video identifiers
+                       for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+                               video_id = page[mobj.span()[0]:mobj.span()[1]].split('=')[2][:-1]
+                               if video_id not in already_seen:
+                                       video_ids.append(video_id)
+                                       already_seen.add(video_id)
+                                       if len(video_ids) == n:
+                                               # Specified n videos reached
+                                               for id in video_ids:
+                                                       self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
+                                               return
+
+                       if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+                               for id in video_ids:
+                                       self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
+                               return
+
+                       pagenum = pagenum + 1
+
+class GoogleSearchIE(InfoExtractor):
+       """Information Extractor for Google Video search queries."""
+       _VALID_QUERY = r'gvsearch(\d+|all)?:[\s\S]+'
+       _TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
+       _VIDEO_INDICATOR = r'videoplay\?docid=([^\&>]+)\&'
+       _MORE_PAGES_INDICATOR = r'<span>Next</span>'
+       _google_ie = None
+       _max_google_results = 1000
+
+       def __init__(self, google_ie, downloader=None):
+               InfoExtractor.__init__(self, downloader)
+               self._google_ie = google_ie
+       
+       @staticmethod
+       def suitable(url):
+               return (re.match(GoogleSearchIE._VALID_QUERY, url) is not None)
+
+       def report_download_page(self, query, pagenum):
+               """Report attempt to download playlist page with given number."""
+               query = query.decode(preferredencoding())
+               self._downloader.to_stdout(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_QUERY, query)
+               if mobj is None:
+                       self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
+                       return
+
+               prefix, query = query.split(':')
+               prefix = prefix[8:]
+               query  = query.encode('utf-8')
+               if prefix == '':
+                       self._download_n_results(query, 1)
+                       return
+               elif prefix == 'all':
+                       self._download_n_results(query, self._max_google_results)
+                       return
+               else:
+                       try:
+                               n = long(prefix)
+                               if n <= 0:
+                                       self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
+                                       return
+                               elif n > self._max_google_results:
+                                       self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)'  % (self._max_google_results, n))
+                                       n = self._max_google_results
+                               self._download_n_results(query, n)
+                               return
+                       except ValueError: # parsing prefix as integer fails
+                               self._download_n_results(query, 1)
+                               return
+
+       def _download_n_results(self, query, n):
+               """Downloads a specified number of results for a query"""
+
+               video_ids = []
+               already_seen = set()
+               pagenum = 1
+
+               while True:
+                       self.report_download_page(query, pagenum)
+                       result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
+                       request = urllib2.Request(result_url, None, std_headers)
+                       try:
+                               page = urllib2.urlopen(request).read()
+                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+                               return
+
+                       # Extract video identifiers
+                       for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+                               video_id = mobj.group(1)
+                               if video_id not in already_seen:
+                                       video_ids.append(video_id)
+                                       already_seen.add(video_id)
+                                       if len(video_ids) == n:
+                                               # Specified n videos reached
+                                               for id in video_ids:
+                                                       self._google_ie.extract('http://video.google.com/videoplay?docid=%s' % id)
+                                               return
+
+                       if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+                               for id in video_ids:
+                                       self._google_ie.extract('http://video.google.com/videoplay?docid=%s' % id)
+                               return
+
+                       pagenum = pagenum + 1
+
+class YahooSearchIE(InfoExtractor):
+       """Information Extractor for Yahoo! Video search queries."""
+       _VALID_QUERY = 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
+
+       def __init__(self, yahoo_ie, downloader=None):
+               InfoExtractor.__init__(self, downloader)
+               self._yahoo_ie = yahoo_ie
+       
+       @staticmethod
+       def suitable(url):
+               return (re.match(YahooSearchIE._VALID_QUERY, url) is not None)
+
+       def report_download_page(self, query, pagenum):
+               """Report attempt to download playlist page with given number."""
+               query = query.decode(preferredencoding())
+               self._downloader.to_stdout(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_QUERY, 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, None, std_headers)
+                       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'(?:http://)?(?:\w+\.)?youtube.com/(?:(?:view_play_list|my_playlists)\?.*?p=|user/.*?/user/)([^&]+).*'
+       _TEMPLATE_URL = 'http://www.youtube.com/view_play_list?p=%s&page=%s&gl=US&hl=en'
+       _VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
+       _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
+       _youtube_ie = None
+
+       def __init__(self, youtube_ie, downloader=None):
+               InfoExtractor.__init__(self, downloader)
+               self._youtube_ie = youtube_ie
+       
+       @staticmethod
+       def suitable(url):
+               return (re.match(YoutubePlaylistIE._VALID_URL, url) is not None)
+
+       def report_download_page(self, playlist_id, pagenum):
+               """Report attempt to download playlist page with given number."""
+               self._downloader.to_stdout(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
+
+               # Download playlist pages
+               playlist_id = mobj.group(1)
+               video_ids = []
+               pagenum = 1
+
+               while True:
+                       self.report_download_page(playlist_id, pagenum)
+                       request = urllib2.Request(self._TEMPLATE_URL % (playlist_id, pagenum), None, std_headers)
+                       try:
+                               page = urllib2.urlopen(request).read()
+                       except (urllib2.URLError, httplib.HTTPException, socket.error), err:
+                               self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
+                               return
+
+                       # Extract video identifiers
+                       ids_in_page = []
+                       for mobj in re.finditer(self._VIDEO_INDICATOR, page):
+                               if mobj.group(1) not in ids_in_page:
+                                       ids_in_page.append(mobj.group(1))
+                       video_ids.extend(ids_in_page)
+
+                       if re.search(self._MORE_PAGES_INDICATOR, page) is None:
+                               break
+                       pagenum = pagenum + 1
+
+               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'(?:http://)?(?:\w+\.)?youtube.com/user/(.*)'
+       _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
+       _VIDEO_INDICATOR = r'http://gdata.youtube.com/feeds/api/videos/(.*)' # XXX Fix this.
+       _youtube_ie = None
+
+       def __init__(self, youtube_ie, downloader=None):
+               InfoExtractor.__init__(self, downloader)
+               self._youtube_ie = youtube_ie
+       
+       @staticmethod
+       def suitable(url):
+               return (re.match(YoutubeUserIE._VALID_URL, url) is not None)
+
+       def report_download_page(self, username):
+               """Report attempt to download user page."""
+               self._downloader.to_stdout(u'[youtube] user %s: Downloading page ' % (username))
+
+       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
+
+               # Download user page
+               username = mobj.group(1)
+               video_ids = []
+               pagenum = 1
+
+               self.report_download_page(username)
+               request = urllib2.Request(self._TEMPLATE_URL % (username), None, std_headers)
+               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)
+
+               for id in video_ids:
+                       self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
+               return
+
+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.
 
        PostProcessor objects follow a "mutual registration" process similar
        to InfoExtractor objects.


@@ -1089,6 +1964,22 @@ if __name__ == '__main__':
                import getpass
                import optparse
 
                import getpass
                import optparse
 

+               # Function to update the program file with the latest version from bitbucket.org
+               def update_self(downloader, filename):
+                       # Note: downloader only used for options
+                       if not os.access (filename, os.W_OK):
+                               sys.exit('ERROR: no write permissions on %s' % filename)
+
+                       downloader.to_stdout('Updating to latest stable version...')
+                       latest_url = 'http://bitbucket.org/rg3/youtube-dl/raw/tip/LATEST_VERSION'
+                       latest_version = urllib.urlopen(latest_url).read().strip()
+                       prog_url = 'http://bitbucket.org/rg3/youtube-dl/raw/%s/youtube-dl' % latest_version
+                       newcontent = urllib.urlopen(prog_url).read()
+                       stream = open(filename, 'w')
+                       stream.write(newcontent)
+                       stream.close()
+                       downloader.to_stdout('Updated to version %s' % latest_version)
+

                # General configuration
                urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler()))
                urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))
                # General configuration
                urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler()))
                urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))


@@ -1097,7 +1988,7 @@ if __name__ == '__main__':
                # Parse command line
                parser = optparse.OptionParser(
                        usage='Usage: %prog [options] url...',
                # Parse command line
                parser = optparse.OptionParser(
                        usage='Usage: %prog [options] url...',

-                       version='2009.09.13',
+                       version='2010.06.06',

                        conflict_handler='resolve',
                )
 
                        conflict_handler='resolve',
                )
 


@@ -1105,10 +1996,14 @@ if __name__ == '__main__':
                                action='help', help='print this help text and exit')
                parser.add_option('-v', '--version',
                                action='version', help='print program version and exit')
                                action='help', help='print this help text and exit')
                parser.add_option('-v', '--version',
                                action='version', help='print program version and exit')

+               parser.add_option('-U', '--update',
+                               action='store_true', dest='update_self', help='update this program to latest stable version')

                parser.add_option('-i', '--ignore-errors',
                                action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
                parser.add_option('-r', '--rate-limit',
                                dest='ratelimit', metavar='L', help='download rate limit (e.g. 50k or 44.6m)')
                parser.add_option('-i', '--ignore-errors',
                                action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
                parser.add_option('-r', '--rate-limit',
                                dest='ratelimit', metavar='L', help='download rate limit (e.g. 50k or 44.6m)')

+               parser.add_option('-R', '--retries',
+                               dest='retries', metavar='T', help='number of retries (default is 10)', default=10)

 
                authentication = optparse.OptionGroup(parser, 'Authentication Options')
                authentication.add_option('-u', '--username',
 
                authentication = optparse.OptionGroup(parser, 'Authentication Options')
                authentication.add_option('-u', '--username',


@@ -1128,6 +2023,8 @@ if __name__ == '__main__':
                                action='store_const', dest='format', help='alias for -f 17', const='17')
                video_format.add_option('-d', '--high-def',
                                action='store_const', dest='format', help='alias for -f 22', const='22')
                                action='store_const', dest='format', help='alias for -f 17', const='17')
                video_format.add_option('-d', '--high-def',
                                action='store_const', dest='format', help='alias for -f 22', const='22')

+               video_format.add_option('--all-formats',
+                               action='store_const', dest='format', help='download all available video formats', const='-1')

                parser.add_option_group(video_format)
 
                verbosity = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')
                parser.add_option_group(video_format)
 
                verbosity = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')


@@ -1139,6 +2036,12 @@ if __name__ == '__main__':
                                action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
                verbosity.add_option('-e', '--get-title',
                                action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
                                action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
                verbosity.add_option('-e', '--get-title',
                                action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)

+               verbosity.add_option('--get-thumbnail',
+                               action='store_true', dest='getthumbnail', help='simulate, quiet but print thumbnail URL', default=False)
+               verbosity.add_option('--get-description',
+                               action='store_true', dest='getdescription', help='simulate, quiet but print video description', default=False)
+               verbosity.add_option('--no-progress',
+                               action='store_true', dest='noprogress', help='do not print progress bar', default=False)

                parser.add_option_group(verbosity)
 
                filesystem = optparse.OptionGroup(parser, 'Filesystem Options')
                parser.add_option_group(verbosity)
 
                filesystem = optparse.OptionGroup(parser, 'Filesystem Options')


@@ -1149,7 +2052,7 @@ if __name__ == '__main__':
                filesystem.add_option('-o', '--output',
                                dest='outtmpl', metavar='TPL', help='output filename template')
                filesystem.add_option('-a', '--batch-file',
                filesystem.add_option('-o', '--output',
                                dest='outtmpl', metavar='TPL', help='output filename template')
                filesystem.add_option('-a', '--batch-file',

-                               dest='batchfile', metavar='F', help='file containing URLs to download')
+                               dest='batchfile', metavar='F', help='file containing URLs to download (\'-\' for stdin)')

                filesystem.add_option('-w', '--no-overwrites',
                                action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
                filesystem.add_option('-c', '--continue',
                filesystem.add_option('-w', '--no-overwrites',
                                action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
                filesystem.add_option('-c', '--continue',


@@ -1162,7 +2065,11 @@ if __name__ == '__main__':
                batchurls = []
                if opts.batchfile is not None:
                        try:
                batchurls = []
                if opts.batchfile is not None:
                        try:

-                               batchurls = open(opts.batchfile, 'r').readlines()
+                               if opts.batchfile == '-':
+                                       batchfd = sys.stdin
+                               else:
+                                       batchfd = open(opts.batchfile, 'r')
+                               batchurls = batchfd.readlines()

                                batchurls = [x.strip() for x in batchurls]
                                batchurls = [x for x in batchurls if len(x) > 0]
                        except IOError:
                                batchurls = [x.strip() for x in batchurls]
                                batchurls = [x for x in batchurls if len(x) > 0]
                        except IOError:


@@ -1170,8 +2077,6 @@ if __name__ == '__main__':
                all_urls = batchurls + args
 
                # Conflicting, missing and erroneous options
                all_urls = batchurls + args
 
                # Conflicting, missing and erroneous options

-               if len(all_urls) < 1:
-                       parser.error(u'you must provide at least one URL')

                if opts.usenetrc and (opts.username is not None or opts.password is not None):
                        parser.error(u'using .netrc conflicts with giving username/password')
                if opts.password is not None and opts.username is None:
                if opts.usenetrc and (opts.username is not None or opts.password is not None):
                        parser.error(u'using .netrc conflicts with giving username/password')
                if opts.password is not None and opts.username is None:


@@ -1187,36 +2092,76 @@ if __name__ == '__main__':
                        if numeric_limit is None:
                                parser.error(u'invalid rate limit specified')
                        opts.ratelimit = numeric_limit
                        if numeric_limit is None:
                                parser.error(u'invalid rate limit specified')
                        opts.ratelimit = numeric_limit

+               if opts.retries is not None:
+                       try:
+                               opts.retries = long(opts.retries)
+                       except (TypeError, ValueError), err:
+                               parser.error(u'invalid retry count specified')

 
                # Information extractors
                youtube_ie = YoutubeIE()
                metacafe_ie = MetacafeIE(youtube_ie)
                youtube_pl_ie = YoutubePlaylistIE(youtube_ie)
 
                # Information extractors
                youtube_ie = YoutubeIE()
                metacafe_ie = MetacafeIE(youtube_ie)
                youtube_pl_ie = YoutubePlaylistIE(youtube_ie)

+               youtube_user_ie = YoutubeUserIE(youtube_ie)

                youtube_search_ie = YoutubeSearchIE(youtube_ie)
                youtube_search_ie = YoutubeSearchIE(youtube_ie)

+               google_ie = GoogleIE()
+               google_search_ie = GoogleSearchIE(google_ie)
+               photobucket_ie = PhotobucketIE()
+               yahoo_ie = YahooIE()
+               yahoo_search_ie = YahooSearchIE(yahoo_ie)
+               generic_ie = GenericIE()

 
                # File downloader
                fd = FileDownloader({
                        'usenetrc': opts.usenetrc,
                        'username': opts.username,
                        'password': opts.password,
 
                # File downloader
                fd = FileDownloader({
                        'usenetrc': opts.usenetrc,
                        'username': opts.username,
                        'password': opts.password,

-                       'quiet': (opts.quiet or opts.geturl or opts.gettitle),
+                       'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription),

                        'forceurl': opts.geturl,
                        'forcetitle': opts.gettitle,
                        'forceurl': opts.geturl,
                        'forcetitle': opts.gettitle,

-                       'simulate': (opts.simulate or opts.geturl or opts.gettitle),
+                       'forcethumbnail': opts.getthumbnail,
+                       'forcedescription': opts.getdescription,
+                       'simulate': (opts.simulate or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription),

                        'format': opts.format,
                        'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
                        'format': opts.format,
                        'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))

+                               or (opts.format == '-1' and opts.usetitle and u'%(stitle)s-%(id)s-%(format)s.%(ext)s')
+                               or (opts.format == '-1' and opts.useliteral and u'%(title)s-%(id)s-%(format)s.%(ext)s')
+                               or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')

                                or (opts.usetitle and u'%(stitle)s-%(id)s.%(ext)s')
                                or (opts.useliteral and u'%(title)s-%(id)s.%(ext)s')
                                or u'%(id)s.%(ext)s'),
                        'ignoreerrors': opts.ignoreerrors,
                        'ratelimit': opts.ratelimit,
                        'nooverwrites': opts.nooverwrites,
                                or (opts.usetitle and u'%(stitle)s-%(id)s.%(ext)s')
                                or (opts.useliteral and u'%(title)s-%(id)s.%(ext)s')
                                or u'%(id)s.%(ext)s'),
                        'ignoreerrors': opts.ignoreerrors,
                        'ratelimit': opts.ratelimit,
                        'nooverwrites': opts.nooverwrites,

+                       'retries': opts.retries,

                        'continuedl': opts.continue_dl,
                        'continuedl': opts.continue_dl,

+                       'noprogress': opts.noprogress,

                        })
                fd.add_info_extractor(youtube_search_ie)
                fd.add_info_extractor(youtube_pl_ie)
                        })
                fd.add_info_extractor(youtube_search_ie)
                fd.add_info_extractor(youtube_pl_ie)

+               fd.add_info_extractor(youtube_user_ie)

                fd.add_info_extractor(metacafe_ie)
                fd.add_info_extractor(youtube_ie)
                fd.add_info_extractor(metacafe_ie)
                fd.add_info_extractor(youtube_ie)

+               fd.add_info_extractor(google_ie)
+               fd.add_info_extractor(google_search_ie)
+               fd.add_info_extractor(photobucket_ie)
+               fd.add_info_extractor(yahoo_ie)
+               fd.add_info_extractor(yahoo_search_ie)
+
+               # This must come last since it's the
+               # fallback if none of the others work
+               fd.add_info_extractor(generic_ie)
+
+               # Update version
+               if opts.update_self:
+                       update_self(fd, sys.argv[0])
+
+               # Maybe do nothing
+               if len(all_urls) < 1:
+                       if not opts.update_self:
+                               parser.error(u'you must provide at least one URL')
+                       else:
+                               sys.exit()

                retcode = fd.download(all_urls)
                sys.exit(retcode)
 
                retcode = fd.download(all_urls)
                sys.exit(retcode)