mirror of
https://github.com/l1ving/youtube-dl
synced 2024-12-21 18:42:59 +08:00
Partially rewrite YouTube InfoExtractor after it stopped working
As part of the changes, the program now downloads the highest quality version by default and uses fmt_url_map to decide which formats are really available.
This commit is contained in:
Ricardo Garcia
parent
460d8acbaa
commit
497cd3e68e
241
youtube-dl
241
youtube-dl
@ -688,8 +688,8 @@ class YoutubeIE(InfoExtractor):
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_LOGIN_URL = 'http://www.youtube.com/signup?next=/&gl=US&hl=en'
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_AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
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_NETRC_MACHINE = 'youtube'
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# Listed in order of priority for the -b option
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_available_formats = ['38', '37', '22', '45', '35', '34', '43', '18', '6', '5', '17', '13', None]
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# Listed in order of quality
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_available_formats = ['38', '37', '22', '45', '35', '34', '43', '18', '6', '5', '17', '13']
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_video_extensions = {
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'13': '3gp',
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'17': 'mp4',
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@ -812,124 +812,109 @@ class YoutubeIE(InfoExtractor):
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if mobj is None:
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self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
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return
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# At this point we have a new video
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if self._downloader is not None:
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self._downloader.increment_downloads()
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video_id = mobj.group(2)
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# Downloader parameters
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best_quality = False
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all_formats = False
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format_param = None
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quality_index = 0
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if self._downloader is not None:
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params = self._downloader.params
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format_param = params.get('format', None)
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if format_param == '0':
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format_limit = params.get('format_limit', None)
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if format_limit is not None:
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try:
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# Start at a different format if the user has limited the maximum quality
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quality_index = self._available_formats.index(format_limit)
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except ValueError:
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pass
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format_param = self._available_formats[quality_index]
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best_quality = True
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elif format_param == '-1':
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format_param = self._available_formats[quality_index]
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all_formats = True
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# Get video webpage
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self.report_video_webpage_download(video_id)
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request = urllib2.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en' % video_id, None, std_headers)
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try:
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video_webpage = urllib2.urlopen(request).read()
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except (urllib2.URLError, httplib.HTTPException, socket.error), err:
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self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
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return
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# Attempt to extract SWF player URL
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mobj = re.search(r'swfConfig.*"(http://.*?watch.*?-.*?\.swf)"', video_webpage)
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if mobj is not None:
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player_url = mobj.group(1)
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else:
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player_url = None
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# Get video info
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self.report_video_info_webpage_download(video_id)
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for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
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video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
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% (video_id, el_type))
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request = urllib2.Request(video_info_url, None, std_headers)
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try:
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video_info_webpage = urllib2.urlopen(request).read()
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video_info = parse_qs(video_info_webpage)
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if 'token' in video_info:
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break
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except (urllib2.URLError, httplib.HTTPException, socket.error), err:
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self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
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return
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self.report_information_extraction(video_id)
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# uploader
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if 'author' not in video_info:
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self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
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return
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video_uploader = urllib.unquote_plus(video_info['author'][0])
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# title
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if 'title' not in video_info:
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self._downloader.trouble(u'ERROR: unable to extract video title')
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return
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video_title = urllib.unquote_plus(video_info['title'][0])
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video_title = video_title.decode('utf-8')
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video_title = sanitize_title(video_title)
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# simplified title
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simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
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simple_title = simple_title.strip(ur'_')
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# thumbnail image
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if 'thumbnail_url' not in video_info:
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self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
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video_thumbnail = ''
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else: # don't panic if we can't find it
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video_thumbnail = urllib.unquote_plus(video_info['thumbnail_url'][0])
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# description
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video_description = 'No description available.'
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if self._downloader.params.get('forcedescription', False):
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mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', video_webpage)
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if mobj is not None:
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video_description = mobj.group(1)
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# Decide which formats to download
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if 'fmt_url_map' in video_info:
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url_map = dict(tuple(pair.split('|')) for pair in video_info['fmt_url_map'][0].split(','))
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format_limit = self._downloader.params.get('format_limit', None)
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if format_limit is not None and format_limit in self._available_formats:
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format_list = self._available_formats[self._available_formats.index(format_limit):]
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else:
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format_list = self._available_formats
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existing_formats = [x for x in format_list if x in url_map]
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if len(existing_formats) == 0:
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self._downloader.trouble(u'ERROR: no known formats available for video')
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return
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requested_format = self._downloader.params.get('format', None)
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if requested_format is None:
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video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
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elif requested_format == '-1':
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video_url_list = url_map.items() # All formats
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else:
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if requested_format not in existing_formats:
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self._downloader.trouble(u'ERROR: format not available for video')
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return
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video_url_list = [(requested_format, url_map[requested_format])] # Specific format
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elif 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
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self.report_rtmp_download()
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video_url_list = [(None, video_info['conn'][0])]
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else:
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self._downloader.trouble(u'ERROR: no fmt_url_map or conn information found in video info')
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return
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for format_param, video_real_url in video_url_list:
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# At this point we have a new video
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self._downloader.increment_downloads()
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while True:
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# Extension
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video_extension = self._video_extensions.get(format_param, 'flv')
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# Get video webpage
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self.report_video_webpage_download(video_id)
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request = urllib2.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en' % video_id, None, std_headers)
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try:
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video_webpage = urllib2.urlopen(request).read()
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except (urllib2.URLError, httplib.HTTPException, socket.error), err:
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self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
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return
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# Attempt to extract SWF player URL
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mobj = re.search(r'swfConfig.*"(http://.*?watch.*?-.*?\.swf)"', video_webpage)
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if mobj is not None:
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player_url = mobj.group(1)
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else:
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player_url = None
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# Get video info
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self.report_video_info_webpage_download(video_id)
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for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
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video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
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% (video_id, el_type))
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request = urllib2.Request(video_info_url, None, std_headers)
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try:
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video_info_webpage = urllib2.urlopen(request).read()
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video_info = parse_qs(video_info_webpage)
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if 'token' in video_info:
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break
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except (urllib2.URLError, httplib.HTTPException, socket.error), err:
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self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
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return
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self.report_information_extraction(video_id)
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# "t" param
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if 'token' not in video_info:
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# Attempt to see if YouTube has issued an error message
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if 'reason' not in video_info:
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self._downloader.trouble(u'ERROR: unable to extract "t" parameter for unknown reason')
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stream = open('reportme-ydl-%s.dat' % time.time(), 'wb')
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stream.write(video_info_webpage)
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stream.close()
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else:
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reason = urllib.unquote_plus(video_info['reason'][0])
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self._downloader.trouble(u'ERROR: YouTube said: %s' % reason.decode('utf-8'))
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return
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token = urllib.unquote_plus(video_info['token'][0])
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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)
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if format_param is not None:
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video_real_url = '%s&fmt=%s' % (video_real_url, format_param)
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# Check possible RTMP download
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if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
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self.report_rtmp_download()
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video_real_url = video_info['conn'][0]
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# uploader
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if 'author' not in video_info:
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self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
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return
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video_uploader = urllib.unquote_plus(video_info['author'][0])
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# title
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if 'title' not in video_info:
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self._downloader.trouble(u'ERROR: unable to extract video title')
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return
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video_title = urllib.unquote_plus(video_info['title'][0])
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video_title = video_title.decode('utf-8')
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video_title = sanitize_title(video_title)
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# simplified title
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simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
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simple_title = simple_title.strip(ur'_')
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# thumbnail image
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if 'thumbnail_url' not in video_info:
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self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
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video_thumbnail = ''
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else: # don't panic if we can't find it
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video_thumbnail = urllib.unquote_plus(video_info['thumbnail_url'][0])
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# description
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video_description = 'No description available.'
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if self._downloader.params.get('forcedescription', False):
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mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', video_webpage)
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if mobj is not None:
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video_description = mobj.group(1)
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# Find the video URL in fmt_url_map or conn paramters
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try:
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# Process video information
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self._downloader.process_info({
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@ -944,32 +929,8 @@ class YoutubeIE(InfoExtractor):
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'description': video_description.decode('utf-8'),
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'player_url': player_url,
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})
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if all_formats:
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quality_index += 1
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if quality_index == len(self._available_formats):
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# None left to get
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return
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else:
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format_param = self._available_formats[quality_index]
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continue
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return
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except UnavailableFormatError, err:
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if best_quality or all_formats:
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quality_index += 1
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if quality_index == len(self._available_formats):
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# I don't ever expect this to happen
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if not all_formats:
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self._downloader.trouble(u'ERROR: no known formats available for video')
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return
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else:
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self.report_unavailable_format(video_id, format_param)
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format_param = self._available_formats[quality_index]
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continue
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else:
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self._downloader.trouble('ERROR: format not available for video')
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return
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except UnavailableVideoError, err:
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self._downloader.trouble(u'ERROR: unable to download video')
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class MetacafeIE(InfoExtractor):
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