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Restore INTERNAL version number
[youtube-dl] / youtube-dl
diff --git a/youtube-dl b/youtube-dl
index 545bcb6538643edb87e9e9bd731e5717114a0b7c..becf1d25de31ccbdbaaef76b517bb23490a9c001 100755 (executable)
--- a/youtube-dl
+++ b/youtube-dl
@@ -19,7 +19,7 @@ import urllib
 import urllib2
 
 std_headers = {
 import urllib2
 
 std_headers = {
-       'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8',
+       'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2',
        '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',
@@ -52,6 +52,29 @@ class PostProcessingError(Exception):
        """
        pass
 
        """
        pass
 
+class UnavailableFormatError(Exception):
+       """Unavailable Format exception.
+
+       This exception will be thrown when a video is requested
+       in a format that is not available for that video.
+       """
+       pass
+
+class ContentTooShortError(Exception):
+       """Content Too Short exception.
+
+       This exception may be raised by FileDownloader objects when a file they
+       download is too small for what the server announced first, indicating
+       the connection was probably interrupted.
+       """
+       # Both in bytes
+       downloaded = None
+       expected = None
+
+       def __init__(self, downloaded, expected):
+               self.downloaded = downloaded
+               self.expected = expected
+
 class FileDownloader(object):
        """File Downloader class.
 
 class FileDownloader(object):
        """File Downloader class.
 
@@ -65,9 +88,10 @@ class FileDownloader(object):
        For this, file downloader objects have a method that allows
        InfoExtractors to be registered in a given order. When it is passed
        a URL, the file downloader handles it to the first InfoExtractor it
        For this, file downloader objects have a method that allows
        InfoExtractors to be registered in a given order. When it is passed
        a URL, the file downloader handles it to the first InfoExtractor it
-       finds that reports being able to handle it. The InfoExtractor returns
-       all the information to the FileDownloader and the latter downloads the
-       file or does whatever it's instructed to do.
+       finds that reports being able to handle it. The InfoExtractor extracts
+       all the information about the video or videos the URL refers to, and
+       asks the FileDownloader to process the video information, possibly
+       downloading the video.
 
        File downloaders accept a lot of parameters. In order not to saturate
        the object constructor with arguments, it receives a dictionary of
 
        File downloaders accept a lot of parameters. In order not to saturate
        the object constructor with arguments, it receives a dictionary of
@@ -90,6 +114,7 @@ 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.
+       continuedl:     Try to continue downloads if possible.
        """
 
        params = None
        """
 
        params = None
@@ -118,10 +143,12 @@ class FileDownloader(object):
        def format_bytes(bytes):
                if bytes is None:
                        return 'N/A'
        def format_bytes(bytes):
                if bytes is None:
                        return 'N/A'
-               if bytes == 0:
+               if type(bytes) is str:
+                       bytes = float(bytes)
+               if bytes == 0.0:
                        exponent = 0
                else:
                        exponent = 0
                else:
-                       exponent = long(math.log(float(bytes), 1024.0))
+                       exponent = long(math.log(bytes, 1024.0))
                suffix = 'bkMGTPEZY'[exponent]
                converted = float(bytes) / float(1024**exponent)
                return '%.2f%s' % (converted, suffix)
                suffix = 'bkMGTPEZY'[exponent]
                converted = float(bytes) / float(1024**exponent)
                return '%.2f%s' % (converted, suffix)
@@ -158,13 +185,13 @@ class FileDownloader(object):
                new_min = max(bytes / 2.0, 1.0)
                new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB
                if elapsed_time < 0.001:
                new_min = max(bytes / 2.0, 1.0)
                new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB
                if elapsed_time < 0.001:
-                       return int(new_max)
+                       return long(new_max)
                rate = bytes / elapsed_time
                if rate > new_max:
                rate = bytes / elapsed_time
                if rate > new_max:
-                       return int(new_max)
+                       return long(new_max)
                if rate < new_min:
                if rate < new_min:
-                       return int(new_min)
-               return int(rate)
+                       return long(new_min)
+               return long(rate)
 
        @staticmethod
        def parse_bytes(bytestr):
 
        @staticmethod
        def parse_bytes(bytestr):
@@ -176,6 +203,14 @@ class FileDownloader(object):
                multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower())
                return long(round(number * multiplier))
 
                multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower())
                return long(round(number * multiplier))
 
+       @staticmethod
+       def verify_url(url):
+               """Verify a URL is valid and data could be downloaded."""
+               request = urllib2.Request(url, None, std_headers)
+               data = urllib2.urlopen(request)
+               data.read(1)
+               data.close()
+
        def add_info_extractor(self, ie):
                """Add an InfoExtractor object to the end of the list."""
                self._ies.append(ie)
        def add_info_extractor(self, ie):
                """Add an InfoExtractor object to the end of the list."""
                self._ies.append(ie)
@@ -189,12 +224,12 @@ class FileDownloader(object):
        def to_stdout(self, message, skip_eol=False):
                """Print message to stdout if not in quiet mode."""
                if not self.params.get('quiet', False):
        def to_stdout(self, message, skip_eol=False):
                """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]),
+                       print (u'%s%s' % (message, [u'\n', u''][skip_eol])).encode(locale.getpreferredencoding()),
                        sys.stdout.flush()
        
        def to_stderr(self, message):
                """Print message to stderr."""
                        sys.stdout.flush()
        
        def to_stderr(self, message):
                """Print message to stderr."""
-               print >>sys.stderr, message
+               print >>sys.stderr, message.encode(locale.getpreferredencoding())
        
        def fixed_template(self):
                """Checks if the output template is fixed."""
        
        def fixed_template(self):
                """Checks if the output template is fixed."""
@@ -234,6 +269,18 @@ class FileDownloader(object):
                """Report download progress."""
                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)
                """Report download progress."""
                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)
+
+       def report_resuming_byte(self, resume_len):
+               """Report attemtp to resume at given byte."""
+               self.to_stdout(u'[download] Resuming download at byte %s' % resume_len)
+       
+       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)
+       
+       def report_unable_to_resume(self):
+               """Report it was impossible to resume download."""
+               self.to_stdout(u'[download] Unable to resume')
        
        def report_finish(self):
                """Report download finished."""
        
        def report_finish(self):
                """Report download finished."""
@@ -241,50 +288,54 @@ class FileDownloader(object):
 
        def process_info(self, info_dict):
                """Process a single dictionary returned by an InfoExtractor."""
 
        def process_info(self, info_dict):
                """Process a single dictionary returned by an InfoExtractor."""
-               # Forced printings
-               if self.params.get('forcetitle', False):
-                       print info_dict['title']
-               if self.params.get('forceurl', False):
-                       print info_dict['url']
-                       
                # Do nothing else if in simulate mode
                if self.params.get('simulate', False):
                # Do nothing else if in simulate mode
                if self.params.get('simulate', False):
-                       return
+                       try:
+                               self.verify_url(info_dict['url'])
+                       except (OSError, IOError, urllib2.URLError, httplib.HTTPException, socket.error), err:
+                               raise UnavailableFormatError
+
+                       # Forced printings
+                       if self.params.get('forcetitle', False):
+                               print info_dict['title'].encode(locale.getpreferredencoding())
+                       if self.params.get('forceurl', False):
+                               print info_dict['url'].encode(locale.getpreferredencoding())
 
 
+                       return
+                       
                try:
                try:
-                       filename = self.params['outtmpl'] % info_dict
-                       self.report_destination(filename)
+                       template_dict = dict(info_dict)
+                       template_dict['epoch'] = unicode(long(time.time()))
+                       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):
                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):
-                       self.to_stderr('WARNING: file exists: %s; skipping' % filename)
+                       self.to_stderr(u'WARNING: file exists: %s; skipping' % filename)
                        return
                        return
+
                try:
                        self.pmkdir(filename)
                except (OSError, IOError), err:
                        self.trouble('ERROR: unable to create directories: %s' % str(err))
                        return
                try:
                        self.pmkdir(filename)
                except (OSError, IOError), err:
                        self.trouble('ERROR: unable to create directories: %s' % str(err))
                        return
+
                try:
                try:
-                       outstream = open(filename, 'wb')
-               except (OSError, IOError), err:
-                       self.trouble('ERROR: unable to open for writing: %s' % str(err))
-                       return
-               try:
-                       self._do_download(outstream, info_dict['url'])
-                       outstream.close()
+                       success = self._do_download(filename, info_dict['url'])
                except (OSError, IOError), err:
                except (OSError, IOError), err:
-                       self.trouble('ERROR: unable to write video data: %s' % str(err))
-                       return
+                       raise UnavailableFormatError
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:
                        self.trouble('ERROR: unable to download video data: %s' % str(err))
                        return
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:
                        self.trouble('ERROR: unable to download video data: %s' % str(err))
                        return
-               try:
-                       self.post_process(filename, info_dict)
-               except (PostProcessingError), err:
-                       self.trouble('ERROR: postprocessing: %s' % str(err))
+               except (ContentTooShortError, ), err:
+                       self.trouble('ERROR: content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
                        return
 
                        return
 
-               return
+               if success:
+                       try:
+                               self.post_process(filename, info_dict)
+                       except (PostProcessingError), err:
+                               self.trouble('ERROR: postprocessing: %s' % str(err))
+                               return
 
        def download(self, url_list):
                """Download a given list of URLs."""
 
        def download(self, url_list):
                """Download a given list of URLs."""
@@ -321,21 +372,43 @@ class FileDownloader(object):
                        if info is None:
                                break
        
                        if info is None:
                                break
        
-       def _do_download(self, stream, url):
+       def _do_download(self, filename, url):
+               stream = None
+               open_mode = 'ab'
+
+               basic_request = urllib2.Request(url, None, std_headers)
                request = urllib2.Request(url, None, std_headers)
                request = urllib2.Request(url, None, std_headers)
-               data = urllib2.urlopen(request)
+
+               # Attempt to resume download with "continuedl" option
+               if os.path.isfile(filename):
+                       resume_len = os.path.getsize(filename)
+               else:
+                       resume_len = 0
+               if self.params['continuedl'] and resume_len != 0:
+                       self.report_resuming_byte(resume_len)
+                       request.add_header('Range','bytes=%d-' % resume_len)
+
+               # 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'
+
                data_len = data.info().get('Content-length', None)
                data_len_str = self.format_bytes(data_len)
                byte_counter = 0
                block_size = 1024
                start = time.time()
                while True:
                data_len = data.info().get('Content-length', None)
                data_len_str = self.format_bytes(data_len)
                byte_counter = 0
                block_size = 1024
                start = time.time()
                while True:
-                       # Progress message
-                       percent_str = self.calc_percent(byte_counter, data_len)
-                       eta_str = self.calc_eta(start, time.time(), data_len, byte_counter)
-                       speed_str = self.calc_speed(start, time.time(), byte_counter)
-                       self.report_progress(percent_str, data_len_str, speed_str, eta_str)
-
                        # Download and write
                        before = time.time()
                        data_block = data.read(block_size)
                        # Download and write
                        before = time.time()
                        data_block = data.read(block_size)
@@ -344,15 +417,31 @@ class FileDownloader(object):
                        if data_block_len == 0:
                                break
                        byte_counter += data_block_len
                        if data_block_len == 0:
                                break
                        byte_counter += data_block_len
+
+                       # Open file just in time
+                       if stream is None:
+                               try:
+                                       stream = open(filename, open_mode)
+                                       self.report_destination(filename)
+                               except (OSError, IOError), err:
+                                       self.trouble('ERROR: unable to open for writing: %s' % str(err))
+                                       return False
                        stream.write(data_block)
                        block_size = self.best_block_size(after - before, data_block_len)
 
                        stream.write(data_block)
                        block_size = self.best_block_size(after - before, data_block_len)
 
+                       # Progress message
+                       percent_str = self.calc_percent(byte_counter, data_len)
+                       eta_str = self.calc_eta(start, time.time(), data_len, byte_counter)
+                       speed_str = self.calc_speed(start, time.time(), byte_counter)
+                       self.report_progress(percent_str, data_len_str, speed_str, eta_str)
+
                        # Apply rate limit
                        self.slow_down(start, byte_counter)
 
                self.report_finish()
                if data_len is not None and str(byte_counter) != data_len:
                        # Apply rate limit
                        self.slow_down(start, byte_counter)
 
                self.report_finish()
                if data_len is not None and str(byte_counter) != data_len:
-                       raise ValueError('Content too short: %s/%s bytes' % (byte_counter, data_len))
+                       raise ContentTooShortError(byte_counter, long(data_len))
+               return True
 
 class InfoExtractor(object):
        """Information Extractor class.
 
 class InfoExtractor(object):
        """Information Extractor class.
@@ -360,9 +449,10 @@ class InfoExtractor(object):
        Information extractors are the classes that, given a URL, extract
        information from the video (or videos) the URL refers to. This
        information includes the real video URL, the video title and simplified
        Information extractors are the classes that, given a URL, extract
        information from the video (or videos) the URL refers to. This
        information includes the real video URL, the video title and simplified
-       title, author and others. It is returned in a list of dictionaries when
-       calling its extract() method. It is a list because a URL can refer to
-       more than one video (think of playlists). The dictionaries must include
+       title, author and others. The information is stored in a dictionary
+       which is then passed to the FileDownloader. The FileDownloader
+       processes this information possibly downloading the video to the file
+       system, among other possible outcomes. The dictionaries must include
        the following fields:
 
        id:             Video identifier.
        the following fields:
 
        id:             Video identifier.
@@ -422,6 +512,13 @@ class YoutubeIE(InfoExtractor):
        _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'
        _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
+       _video_extensions = {
+               '13': '3gp',
+               '17': 'mp4',
+               '18': 'mp4',
+               '22': 'mp4',
+       }
 
        @staticmethod
        def suitable(url):
 
        @staticmethod
        def suitable(url):
@@ -462,9 +559,9 @@ 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_webpage_download(self, video_id):
-               """Report attempt to download 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_information_extraction(self, video_id):
                """Report attempt to extract video information."""
        
        def report_information_extraction(self, video_id):
                """Report attempt to extract video information."""
@@ -474,6 +571,10 @@ class YoutubeIE(InfoExtractor):
                """Report extracted video URL."""
                self._downloader.to_stdout(u'[youtube] %s: URL: %s' % (video_id, video_real_url))
        
                """Report extracted video URL."""
                self._downloader.to_stdout(u'[youtube] %s: URL: %s' % (video_id, video_real_url))
        
+       def report_unavailable_format(self, video_id, format):
+               """Report extracted video URL."""
+               self._downloader.to_stdout(u'[youtube] %s: Format %s not available' % (video_id, format))
+       
        def _real_initialize(self):
                if self._downloader is None:
                        return
        def _real_initialize(self):
                if self._downloader is None:
                        return
@@ -552,76 +653,107 @@ class YoutubeIE(InfoExtractor):
                video_id = mobj.group(2)
 
                # Downloader parameters
                video_id = mobj.group(2)
 
                # Downloader parameters
+               best_quality = False
                format_param = None
                format_param = None
+               quality_index = 0
                if self._downloader is not None:
                        params = self._downloader.params
                        format_param = params.get('format', None)
                if self._downloader is not None:
                        params = self._downloader.params
                        format_param = params.get('format', None)
+                       if format_param == '0':
+                               format_param = self._available_formats[quality_index]
+                               best_quality = True
 
 
-               # Extension
-               video_extension = {
-                       '17': '3gp',
-                       '18': 'mp4',
-                       '22': 'mp4',
-               }.get(format_param, 'flv')
-
-               # Normalize URL, including format
-               normalized_url = 'http://www.youtube.com/watch?v=%s&gl=US&hl=en' % video_id
-               if format_param is not None:
-                       normalized_url = '%s&fmt=%s' % (normalized_url, format_param)
-               request = urllib2.Request(normalized_url, None, std_headers)
-               try:
-                       self.report_webpage_download(video_id)
-                       video_webpage = urllib2.urlopen(request).read()
-               except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
-                       return
-               self.report_information_extraction(video_id)
-               
-               # "t" param
-               mobj = re.search(r', "t": "([^"]+)"', video_webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract "t" parameter')
-                       return
-               video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s&el=detailpage&ps=' % (video_id, mobj.group(1))
-               if format_param is not None:
-                       video_real_url = '%s&fmt=%s' % (video_real_url, format_param)
-               self.report_video_url(video_id, video_real_url)
+               while True:
+                       # Extension
+                       video_extension = self._video_extensions.get(format_param, 'flv')
 
 
-               # uploader
-               mobj = re.search(r"var watchUsername = '([^']+)';", video_webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
-                       return
-               video_uploader = mobj.group(1)
+                       # 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)
+                       try:
+                               self.report_video_info_webpage_download(video_id)
+                               video_info_webpage = urllib2.urlopen(request).read()
+                       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
+                       mobj = re.search(r'(?m)&token=([^&]+)(?:&|$)', video_info_webpage)
+                       if mobj is None:
+                               # Attempt to see if YouTube has issued an error message
+                               mobj = re.search(r'(?m)&reason=([^&]+)(?:&|$)', video_info_webpage)
+                               if mobj is None:
+                                       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))
+                                       self._downloader.trouble(u'ERROR: YouTube said: %s' % reason.decode('utf-8'))
+                               return
+                       token = urllib.unquote(mobj.group(1))
+                       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)
+                       self.report_video_url(video_id, video_real_url)
+
+                       # uploader
+                       mobj = re.search(r'(?m)&author=([^&]+)(?:&|$)', video_info_webpage)
+                       if mobj is None:
+                               self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
+                               return
+                       video_uploader = urllib.unquote(mobj.group(1))
+
+                       # title
+                       mobj = re.search(r'(?m)&title=([^&]+)(?:&|$)', video_info_webpage)
+                       if mobj is None:
+                               self._downloader.trouble(u'ERROR: unable to extract video title')
+                               return
+                       video_title = urllib.unquote(mobj.group(1))
+                       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'%')
+
+                       # simplified title
+                       simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
+                       simple_title = simple_title.strip(ur'_')
+
+                       try:
+                               # Process video information
+                               self._downloader.process_info({
+                                       'id':           video_id.decode('utf-8'),
+                                       'url':          video_real_url.decode('utf-8'),
+                                       'uploader':     video_uploader.decode('utf-8'),
+                                       'title':        video_title,
+                                       'stitle':       simple_title,
+                                       'ext':          video_extension.decode('utf-8'),
+                               })
+
+                               return
+
+                       except UnavailableFormatError, err:
+                               if best_quality:
+                                       if quality_index == len(self._available_formats) - 1:
+                                               # I don't ever expect this to happen
+                                               self._downloader.trouble(u'ERROR: no known formats available for video')
+                                               return
+                                       else:
+                                               self.report_unavailable_format(video_id, format_param)
+                                               quality_index += 1
+                                               format_param = self._available_formats[quality_index]
+                                               continue
+                               else: 
+                                       self._downloader.trouble('ERROR: format not available for video')
+                                       return
 
 
-               # title
-               mobj = re.search(r'(?im)<title>YouTube - ([^<]*)</title>', video_webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract video title')
-                       return
-               video_title = mobj.group(1).decode('utf-8')
-               video_title = re.sub(ur'(?u)&(.+?);', self.htmlentity_transform, video_title)
-               video_title = video_title.replace(os.sep, u'%')
-
-               # simplified title
-               simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
-               simple_title = simple_title.strip(ur'_')
-
-               # Process video information
-               self._downloader.process_info({
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_real_url.decode('utf-8'),
-                       'uploader':     video_uploader.decode('utf-8'),
-                       'title':        video_title,
-                       'stitle':       simple_title,
-                       'ext':          video_extension.decode('utf-8'),
-                       })
 
 class MetacafeIE(InfoExtractor):
        """Information Extractor for metacafe.com."""
 
        _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
        _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
 
 class MetacafeIE(InfoExtractor):
        """Information Extractor for metacafe.com."""
 
        _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
        _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
+       _FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
        _youtube_ie = None
 
        def __init__(self, youtube_ie, downloader=None):
        _youtube_ie = None
 
        def __init__(self, youtube_ie, downloader=None):
@@ -663,7 +795,7 @@ class MetacafeIE(InfoExtractor):
                        'filters': '0',
                        'submit': "Continue - I'm over 18",
                        }
                        'filters': '0',
                        'submit': "Continue - I'm over 18",
                        }
-               request = urllib2.Request('http://www.metacafe.com/', urllib.urlencode(disclaimer_form), std_headers)
+               request = urllib2.Request(self._FILTER_POST, urllib.urlencode(disclaimer_form), std_headers)
                try:
                        self.report_age_confirmation()
                        disclaimer = urllib2.urlopen(request).read()
                try:
                        self.report_age_confirmation()
                        disclaimer = urllib2.urlopen(request).read()
@@ -700,19 +832,21 @@ class MetacafeIE(InfoExtractor):
 
                # Extract URL, uploader and title from webpage
                self.report_extraction(video_id)
 
                # Extract URL, uploader and title from webpage
                self.report_extraction(video_id)
-               mobj = re.search(r'(?m)"mediaURL":"(http.*?\.flv)"', webpage)
+               mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
                if mobj is None:
                        self._downloader.trouble(u'ERROR: unable to extract media URL')
                        return
                if mobj is None:
                        self._downloader.trouble(u'ERROR: unable to extract media URL')
                        return
-               mediaURL = mobj.group(1).replace('\\', '')
+               mediaURL = urllib.unquote(mobj.group(1))
 
 
-               mobj = re.search(r'(?m)"gdaKey":"(.*?)"', webpage)
-               if mobj is None:
-                       self._downloader.trouble(u'ERROR: unable to extract gdaKey')
-                       return
-               gdaKey = mobj.group(1)
+               #mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
+               #if mobj is None:
+               #       self._downloader.trouble(u'ERROR: unable to extract gdaKey')
+               #       return
+               #gdaKey = mobj.group(1)
+               #
+               #video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
 
 
-               video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
+               video_url = mediaURL
 
                mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
                if mobj is None:
 
                mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
                if mobj is None:
@@ -720,21 +854,24 @@ class MetacafeIE(InfoExtractor):
                        return
                video_title = mobj.group(1).decode('utf-8')
 
                        return
                video_title = mobj.group(1).decode('utf-8')
 
-               mobj = re.search(r'(?m)<li id="ChnlUsr">.*?Submitter:<br />(.*?)</li>', webpage)
+               mobj = re.search(r'(?ms)<li id="ChnlUsr">.*?Submitter:.*?<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
-               video_uploader = re.sub(r'<.*?>', '', mobj.group(1))
-
-               # Process video information
-               self._downloader.process_info({
-                       'id':           video_id.decode('utf-8'),
-                       'url':          video_url.decode('utf-8'),
-                       'uploader':     video_uploader.decode('utf-8'),
-                       'title':        video_title,
-                       'stitle':       simple_title,
-                       'ext':          video_extension.decode('utf-8'),
+               video_uploader = mobj.group(1)
+
+               try:
+                       # Process video information
+                       self._downloader.process_info({
+                               'id':           video_id.decode('utf-8'),
+                               'url':          video_url.decode('utf-8'),
+                               'uploader':     video_uploader.decode('utf-8'),
+                               'title':        video_title,
+                               'stitle':       simple_title,
+                               'ext':          video_extension.decode('utf-8'),
                        })
                        })
+               except UnavailableFormatError:
+                       self._downloader.trouble(u'ERROR: format not available for video')
 
 
 class YoutubeSearchIE(InfoExtractor):
 
 
 class YoutubeSearchIE(InfoExtractor):
@@ -742,7 +879,7 @@ class YoutubeSearchIE(InfoExtractor):
        _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=.+?"'
        _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'>Next</a>'
+       _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
        _youtube_ie = None
        _max_youtube_results = 1000
 
        _youtube_ie = None
        _max_youtube_results = 1000
 
@@ -777,7 +914,7 @@ class YoutubeSearchIE(InfoExtractor):
                        return
                else:
                        try:
                        return
                else:
                        try:
-                               n = int(prefix)
+                               n = long(prefix)
                                if n <= 0:
                                        self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
                                        return
                                if n <= 0:
                                        self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
                                        return
@@ -786,7 +923,7 @@ class YoutubeSearchIE(InfoExtractor):
                                        n = self._max_youtube_results
                                self._download_n_results(query, n)
                                return
                                        n = self._max_youtube_results
                                self._download_n_results(query, n)
                                return
-                       except ValueError: # parsing prefix as int fails
+                       except ValueError: # parsing prefix as integer fails
                                self._download_n_results(query, 1)
                                return
 
                                self._download_n_results(query, 1)
                                return
 
@@ -819,7 +956,7 @@ class YoutubeSearchIE(InfoExtractor):
                                                        self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
                                                return
 
                                                        self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
                                                return
 
-                       if self._MORE_PAGES_INDICATOR not in page:
+                       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
                                for id in video_ids:
                                        self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
                                return
@@ -829,10 +966,10 @@ class YoutubeSearchIE(InfoExtractor):
 class YoutubePlaylistIE(InfoExtractor):
        """Information Extractor for YouTube playlists."""
 
 class YoutubePlaylistIE(InfoExtractor):
        """Information Extractor for YouTube playlists."""
 
-       _VALID_URL = r'(?:http://)?(?:\w+\.)?youtube.com/view_play_list\?p=(.+)'
+       _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=(.+?)&'
        _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&amp;page=%s'
+       _MORE_PAGES_INDICATOR = r'/view_play_list?p=%s&page=%s'
        _youtube_ie = None
 
        def __init__(self, youtube_ie, downloader=None):
        _youtube_ie = None
 
        def __init__(self, youtube_ie, downloader=None):
@@ -878,7 +1015,7 @@ class YoutubePlaylistIE(InfoExtractor):
                                        ids_in_page.append(mobj.group(1))
                        video_ids.extend(ids_in_page)
 
                                        ids_in_page.append(mobj.group(1))
                        video_ids.extend(ids_in_page)
 
-                       if (self._MORE_PAGES_INDICATOR % (playlist_id, pagenum + 1)) not in page:
+                       if (self._MORE_PAGES_INDICATOR % (playlist_id.upper(), pagenum + 1)) not in page:
                                break
                        pagenum = pagenum + 1
 
                                break
                        pagenum = pagenum + 1
 
@@ -916,7 +1053,7 @@ class PostProcessor(object):
                """Run the PostProcessor.
 
                The "information" argument is a dictionary like the ones
                """Run the PostProcessor.
 
                The "information" argument is a dictionary like the ones
-               returned by InfoExtractors. The only difference is that this
+               composed by InfoExtractors. The only difference is that this
                one has an extra field called "filepath" that points to the
                downloaded file.
 
                one has an extra field called "filepath" that points to the
                downloaded file.
 
@@ -946,76 +1083,96 @@ if __name__ == '__main__':
 
                # Parse command line
                parser = optparse.OptionParser(
 
                # Parse command line
                parser = optparse.OptionParser(
-                               usage='Usage: %prog [options] url...',
-                               version='INTERNAL',
-                               conflict_handler='resolve',
-                               )
+                       usage='Usage: %prog [options] url...',
+                       version='INTERNAL',
+                       conflict_handler='resolve',
+               )
+
                parser.add_option('-h', '--help',
                                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('-h', '--help',
                                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', '--username',
+               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)')
+
+               authentication = optparse.OptionGroup(parser, 'Authentication Options')
+               authentication.add_option('-u', '--username',
                                dest='username', metavar='UN', help='account username')
                                dest='username', metavar='UN', help='account username')
-               parser.add_option('-p', '--password',
+               authentication.add_option('-p', '--password',
                                dest='password', metavar='PW', help='account password')
                                dest='password', metavar='PW', help='account password')
-               parser.add_option('-o', '--output',
-                               dest='outtmpl', metavar='TPL', help='output filename template')
-               parser.add_option('-q', '--quiet',
+               authentication.add_option('-n', '--netrc',
+                               action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)
+               parser.add_option_group(authentication)
+
+               video_format = optparse.OptionGroup(parser, 'Video Format Options')
+               video_format.add_option('-f', '--format',
+                               action='store', dest='format', metavar='FMT', help='video format code')
+               video_format.add_option('-b', '--best-quality',
+                               action='store_const', dest='format', help='download the best quality video possible', const='0')
+               video_format.add_option('-m', '--mobile-version',
+                               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')
+               parser.add_option_group(video_format)
+
+               verbosity = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')
+               verbosity.add_option('-q', '--quiet',
                                action='store_true', dest='quiet', help='activates quiet mode', default=False)
                                action='store_true', dest='quiet', help='activates quiet mode', default=False)
-               parser.add_option('-s', '--simulate',
+               verbosity.add_option('-s', '--simulate',
                                action='store_true', dest='simulate', help='do not download video', default=False)
                                action='store_true', dest='simulate', help='do not download video', default=False)
-               parser.add_option('-t', '--title',
-                               action='store_true', dest='usetitle', help='use title in file name', default=False)
-               parser.add_option('-l', '--literal',
-                               action='store_true', dest='useliteral', help='use literal title in file name', default=False)
-               parser.add_option('-n', '--netrc',
-                               action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)
-               parser.add_option('-g', '--get-url',
+               verbosity.add_option('-g', '--get-url',
                                action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
                                action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
-               parser.add_option('-e', '--get-title',
+               verbosity.add_option('-e', '--get-title',
                                action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
                                action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
-               parser.add_option('-f', '--format',
-                               dest='format', metavar='FMT', help='video format code')
-               parser.add_option('-m', '--mobile-version',
-                               action='store_const', dest='format', help='alias for -f 17', const='17')
-               parser.add_option('-d', '--high-def',
-                               action='store_const', dest='format', help='alias for -f 22', const='22')
-               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('-a', '--batch-file',
+               parser.add_option_group(verbosity)
+
+               filesystem = optparse.OptionGroup(parser, 'Filesystem Options')
+               filesystem.add_option('-t', '--title',
+                               action='store_true', dest='usetitle', help='use title in file name', default=False)
+               filesystem.add_option('-l', '--literal',
+                               action='store_true', dest='useliteral', help='use literal title in file name', default=False)
+               filesystem.add_option('-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')
-               parser.add_option('-w', '--no-overwrites',
+               filesystem.add_option('-w', '--no-overwrites',
                                action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
                                action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
+               filesystem.add_option('-c', '--continue',
+                               action='store_true', dest='continue_dl', help='resume partially downloaded files', default=False)
+               parser.add_option_group(filesystem)
+
                (opts, args) = parser.parse_args()
 
                # Batch file verification
                batchurls = []
                if opts.batchfile is not None:
                        try:
                (opts, args) = parser.parse_args()
 
                # Batch file verification
                batchurls = []
                if opts.batchfile is not None:
                        try:
-                               batchurls = [line.strip() for line in open(opts.batchfile, 'r')]
+                               batchurls = open(opts.batchfile, 'r').readlines()
+                               batchurls = [x.strip() for x in batchurls]
+                               batchurls = [x for x in batchurls if len(x) > 0]
                        except IOError:
                                sys.exit(u'ERROR: batch file could not be read')
                all_urls = batchurls + args
 
                # Conflicting, missing and erroneous options
                if len(all_urls) < 1:
                        except IOError:
                                sys.exit(u'ERROR: batch file could not be read')
                all_urls = batchurls + args
 
                # Conflicting, missing and erroneous options
                if len(all_urls) < 1:
-                       sys.exit(u'ERROR: you must provide at least one URL')
+                       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):
                if opts.usenetrc and (opts.username is not None or opts.password is not None):
-                       sys.exit(u'ERROR: using .netrc conflicts with giving username/password')
+                       parser.error(u'using .netrc conflicts with giving username/password')
                if opts.password is not None and opts.username is None:
                if opts.password is not None and opts.username is None:
-                       sys.exit(u'ERROR: account username missing')
+                       parser.error(u'account username missing')
                if opts.outtmpl is not None and (opts.useliteral or opts.usetitle):
                if opts.outtmpl is not None and (opts.useliteral or opts.usetitle):
-                       sys.exit(u'ERROR: using output template conflicts with using title or literal title')
+                       parser.error(u'using output template conflicts with using title or literal title')
                if opts.usetitle and opts.useliteral:
                if opts.usetitle and opts.useliteral:
-                       sys.exit(u'ERROR: using title conflicts with using literal title')
+                       parser.error(u'using title conflicts with using literal title')
                if opts.username is not None and opts.password is None:
                        opts.password = getpass.getpass(u'Type account password and press return:')
                if opts.ratelimit is not None:
                        numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
                        if numeric_limit is None:
                if opts.username is not None and opts.password is None:
                        opts.password = getpass.getpass(u'Type account password and press return:')
                if opts.ratelimit is not None:
                        numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
                        if numeric_limit is None:
-                               sys.exit(u'ERROR: invalid rate limit specified')
+                               parser.error(u'invalid rate limit specified')
                        opts.ratelimit = numeric_limit
 
                # Information extractors
                        opts.ratelimit = numeric_limit
 
                # Information extractors
@@ -1025,9 +1182,6 @@ if __name__ == '__main__':
                youtube_search_ie = YoutubeSearchIE(youtube_ie)
 
                # File downloader
                youtube_search_ie = YoutubeSearchIE(youtube_ie)
 
                # File downloader
-               charset = locale.getpreferredencoding()
-               if charset is None:
-                       charset = 'ascii'
                fd = FileDownloader({
                        'usenetrc': opts.usenetrc,
                        'username': opts.username,
                fd = FileDownloader({
                        'usenetrc': opts.usenetrc,
                        'username': opts.username,
@@ -1037,13 +1191,14 @@ if __name__ == '__main__':
                        'forcetitle': opts.gettitle,
                        'simulate': (opts.simulate or opts.geturl or opts.gettitle),
                        'format': opts.format,
                        'forcetitle': opts.gettitle,
                        'simulate': (opts.simulate or opts.geturl or opts.gettitle),
                        'format': opts.format,
-                       'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(charset))
+                       'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(locale.getpreferredencoding()))
                                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,
+                       'continuedl': opts.continue_dl,
                        })
                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)
Totally unverified clone of youtube-dl