_ Git - youtube-dl/blob - youtube_dl/extractor/youtube.py

   1 # coding: utf-8
   2
   3 from __future__ import unicode_literals
   4
   5
   6 import itertools
   7 import json
   8 import os.path
   9 import random
  10 import re
  11 import time
  12 import traceback
  13
  14 from .common import InfoExtractor, SearchInfoExtractor
  15 from ..jsinterp import JSInterpreter
  16 from ..swfinterp import SWFInterpreter
  17 from ..compat import (
  18     compat_chr,
  19     compat_HTTPError,
  20     compat_kwargs,
  21     compat_parse_qs,
  22     compat_urllib_parse_unquote,
  23     compat_urllib_parse_unquote_plus,
  24     compat_urllib_parse_urlencode,
  25     compat_urllib_parse_urlparse,
  26     compat_urlparse,
  27     compat_str,
  28 )
  29 from ..utils import (
  30     clean_html,
  31     dict_get,
  32     error_to_compat_str,
  33     ExtractorError,
  34     float_or_none,
  35     get_element_by_attribute,
  36     get_element_by_id,
  37     int_or_none,
  38     mimetype2ext,
  39     orderedSet,
  40     parse_codecs,
  41     parse_duration,
  42     qualities,
  43     remove_quotes,
  44     remove_start,
  45     smuggle_url,
  46     str_or_none,
  47     str_to_int,
  48     try_get,
  49     unescapeHTML,
  50     unified_strdate,
  51     unsmuggle_url,
  52     uppercase_escape,
  53     url_or_none,
  54     urlencode_postdata,
  55 )
  56
  57
  58 class YoutubeBaseInfoExtractor(InfoExtractor):
  59     """Provide base functions for Youtube extractors"""
  60     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
  61     _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'
  62
  63     _LOOKUP_URL = 'https://accounts.google.com/_/signin/sl/lookup'
  64     _CHALLENGE_URL = 'https://accounts.google.com/_/signin/sl/challenge'
  65     _TFA_URL = 'https://accounts.google.com/_/signin/challenge?hl=en&TL={0}'
  66
  67     _NETRC_MACHINE = 'youtube'
  68     # If True it will raise an error if no login info is provided
  69     _LOGIN_REQUIRED = False
  70
  71     _PLAYLIST_ID_RE = r'(?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)[0-9A-Za-z-_]{10,}'
  72
  73     def _set_language(self):
  74         self._set_cookie(
  75             '.youtube.com', 'PREF', 'f1=50000000&hl=en',
  76             # YouTube sets the expire time to about two months
  77             expire_time=time.time() + 2 * 30 * 24 * 3600)
  78
  79     def _ids_to_results(self, ids):
  80         return [
  81             self.url_result(vid_id, 'Youtube', video_id=vid_id)
  82             for vid_id in ids]
  83
  84     def _login(self):
  85         """
  86         Attempt to log in to YouTube.
  87         True is returned if successful or skipped.
  88         False is returned if login failed.
  89
  90         If _LOGIN_REQUIRED is set and no authentication was provided, an error is raised.
  91         """
  92         username, password = self._get_login_info()
  93         # No authentication to be performed
  94         if username is None:
  95             if self._LOGIN_REQUIRED and self._downloader.params.get('cookiefile') is None:
  96                 raise ExtractorError('No login info available, needed for using %s.' % self.IE_NAME, expected=True)
  97             return True
  98
  99         login_page = self._download_webpage(
 100             self._LOGIN_URL, None,
 101             note='Downloading login page',
 102             errnote='unable to fetch login page', fatal=False)
 103         if login_page is False:
 104             return
 105
 106         login_form = self._hidden_inputs(login_page)
 107
 108         def req(url, f_req, note, errnote):
 109             data = login_form.copy()
 110             data.update({
 111                 'pstMsg': 1,
 112                 'checkConnection': 'youtube',
 113                 'checkedDomains': 'youtube',
 114                 'hl': 'en',
 115                 'deviceinfo': '[null,null,null,[],null,"US",null,null,[],"GlifWebSignIn",null,[null,null,[]]]',
 116                 'f.req': json.dumps(f_req),
 117                 'flowName': 'GlifWebSignIn',
 118                 'flowEntry': 'ServiceLogin',
 119             })
 120             return self._download_json(
 121                 url, None, note=note, errnote=errnote,
 122                 transform_source=lambda s: re.sub(r'^[^[]*', '', s),
 123                 fatal=False,
 124                 data=urlencode_postdata(data), headers={
 125                     'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
 126                     'Google-Accounts-XSRF': 1,
 127                 })
 128
 129         def warn(message):
 130             self._downloader.report_warning(message)
 131
 132         lookup_req = [
 133             username,
 134             None, [], None, 'US', None, None, 2, False, True,
 135             [
 136                 None, None,
 137                 [2, 1, None, 1,
 138                  'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn',
 139                  None, [], 4],
 140                 1, [None, None, []], None, None, None, True
 141             ],
 142             username,
 143         ]
 144
 145         lookup_results = req(
 146             self._LOOKUP_URL, lookup_req,
 147             'Looking up account info', 'Unable to look up account info')
 148
 149         if lookup_results is False:
 150             return False
 151
 152         user_hash = try_get(lookup_results, lambda x: x[0][2], compat_str)
 153         if not user_hash:
 154             warn('Unable to extract user hash')
 155             return False
 156
 157         challenge_req = [
 158             user_hash,
 159             None, 1, None, [1, None, None, None, [password, None, True]],
 160             [
 161                 None, None, [2, 1, None, 1, 'https://accounts.google.com/ServiceLogin?passive=true&continue=https%3A%2F%2Fwww.youtube.com%2Fsignin%3Fnext%3D%252F%26action_handle_signin%3Dtrue%26hl%3Den%26app%3Ddesktop%26feature%3Dsign_in_button&hl=en&service=youtube&uilel=3&requestPath=%2FServiceLogin&Page=PasswordSeparationSignIn', None, [], 4],
 162                 1, [None, None, []], None, None, None, True
 163             ]]
 164
 165         challenge_results = req(
 166             self._CHALLENGE_URL, challenge_req,
 167             'Logging in', 'Unable to log in')
 168
 169         if challenge_results is False:
 170             return
 171
 172         login_res = try_get(challenge_results, lambda x: x[0][5], list)
 173         if login_res:
 174             login_msg = try_get(login_res, lambda x: x[5], compat_str)
 175             warn(
 176                 'Unable to login: %s' % 'Invalid password'
 177                 if login_msg == 'INCORRECT_ANSWER_ENTERED' else login_msg)
 178             return False
 179
 180         res = try_get(challenge_results, lambda x: x[0][-1], list)
 181         if not res:
 182             warn('Unable to extract result entry')
 183             return False
 184
 185         login_challenge = try_get(res, lambda x: x[0][0], list)
 186         if login_challenge:
 187             challenge_str = try_get(login_challenge, lambda x: x[2], compat_str)
 188             if challenge_str == 'TWO_STEP_VERIFICATION':
 189                 # SEND_SUCCESS - TFA code has been successfully sent to phone
 190                 # QUOTA_EXCEEDED - reached the limit of TFA codes
 191                 status = try_get(login_challenge, lambda x: x[5], compat_str)
 192                 if status == 'QUOTA_EXCEEDED':
 193                     warn('Exceeded the limit of TFA codes, try later')
 194                     return False
 195
 196                 tl = try_get(challenge_results, lambda x: x[1][2], compat_str)
 197                 if not tl:
 198                     warn('Unable to extract TL')
 199                     return False
 200
 201                 tfa_code = self._get_tfa_info('2-step verification code')
 202
 203                 if not tfa_code:
 204                     warn(
 205                         'Two-factor authentication required. Provide it either interactively or with --twofactor <code>'
 206                         '(Note that only TOTP (Google Authenticator App) codes work at this time.)')
 207                     return False
 208
 209                 tfa_code = remove_start(tfa_code, 'G-')
 210
 211                 tfa_req = [
 212                     user_hash, None, 2, None,
 213                     [
 214                         9, None, None, None, None, None, None, None,
 215                         [None, tfa_code, True, 2]
 216                     ]]
 217
 218                 tfa_results = req(
 219                     self._TFA_URL.format(tl), tfa_req,
 220                     'Submitting TFA code', 'Unable to submit TFA code')
 221
 222                 if tfa_results is False:
 223                     return False
 224
 225                 tfa_res = try_get(tfa_results, lambda x: x[0][5], list)
 226                 if tfa_res:
 227                     tfa_msg = try_get(tfa_res, lambda x: x[5], compat_str)
 228                     warn(
 229                         'Unable to finish TFA: %s' % 'Invalid TFA code'
 230                         if tfa_msg == 'INCORRECT_ANSWER_ENTERED' else tfa_msg)
 231                     return False
 232
 233                 check_cookie_url = try_get(
 234                     tfa_results, lambda x: x[0][-1][2], compat_str)
 235             else:
 236                 CHALLENGES = {
 237                     'LOGIN_CHALLENGE': "This device isn't recognized. For your security, Google wants to make sure it's really you.",
 238                     'USERNAME_RECOVERY': 'Please provide additional information to aid in the recovery process.',
 239                     'REAUTH': "There is something unusual about your activity. For your security, Google wants to make sure it's really you.",
 240                 }
 241                 challenge = CHALLENGES.get(
 242                     challenge_str,
 243                     '%s returned error %s.' % (self.IE_NAME, challenge_str))
 244                 warn('%s\nGo to https://accounts.google.com/, login and solve a challenge.' % challenge)
 245                 return False
 246         else:
 247             check_cookie_url = try_get(res, lambda x: x[2], compat_str)
 248
 249         if not check_cookie_url:
 250             warn('Unable to extract CheckCookie URL')
 251             return False
 252
 253         check_cookie_results = self._download_webpage(
 254             check_cookie_url, None, 'Checking cookie', fatal=False)
 255
 256         if check_cookie_results is False:
 257             return False
 258
 259         if 'https://myaccount.google.com/' not in check_cookie_results:
 260             warn('Unable to log in')
 261             return False
 262
 263         return True
 264
 265     def _download_webpage_handle(self, *args, **kwargs):
 266         query = kwargs.get('query', {}).copy()
 267         query['disable_polymer'] = 'true'
 268         kwargs['query'] = query
 269         return super(YoutubeBaseInfoExtractor, self)._download_webpage_handle(
 270             *args, **compat_kwargs(kwargs))
 271
 272     def _real_initialize(self):
 273         if self._downloader is None:
 274             return
 275         self._set_language()
 276         if not self._login():
 277             return
 278
 279
 280 class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor):
 281     # Extract entries from page with "Load more" button
 282     def _entries(self, page, playlist_id):
 283         more_widget_html = content_html = page
 284         for page_num in itertools.count(1):
 285             for entry in self._process_page(content_html):
 286                 yield entry
 287
 288             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
 289             if not mobj:
 290                 break
 291
 292             count = 0
 293             retries = 3
 294             while count <= retries:
 295                 try:
 296                     # Downloading page may result in intermittent 5xx HTTP error
 297                     # that is usually worked around with a retry
 298                     more = self._download_json(
 299                         'https://youtube.com/%s' % mobj.group('more'), playlist_id,
 300                         'Downloading page #%s%s'
 301                         % (page_num, ' (retry #%d)' % count if count else ''),
 302                         transform_source=uppercase_escape)
 303                     break
 304                 except ExtractorError as e:
 305                     if isinstance(e.cause, compat_HTTPError) and e.cause.code in (500, 503):
 306                         count += 1
 307                         if count <= retries:
 308                             continue
 309                     raise
 310
 311             content_html = more['content_html']
 312             if not content_html.strip():
 313                 # Some webpages show a "Load more" button but they don't
 314                 # have more videos
 315                 break
 316             more_widget_html = more['load_more_widget_html']
 317
 318
 319 class YoutubePlaylistBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
 320     def _process_page(self, content):
 321         for video_id, video_title in self.extract_videos_from_page(content):
 322             yield self.url_result(video_id, 'Youtube', video_id, video_title)
 323
 324     def extract_videos_from_page(self, page):
 325         ids_in_page = []
 326         titles_in_page = []
 327         for mobj in re.finditer(self._VIDEO_RE, page):
 328             # The link with index 0 is not the first video of the playlist (not sure if still actual)
 329             if 'index' in mobj.groupdict() and mobj.group('id') == '0':
 330                 continue
 331             video_id = mobj.group('id')
 332             video_title = unescapeHTML(mobj.group('title'))
 333             if video_title:
 334                 video_title = video_title.strip()
 335             try:
 336                 idx = ids_in_page.index(video_id)
 337                 if video_title and not titles_in_page[idx]:
 338                     titles_in_page[idx] = video_title
 339             except ValueError:
 340                 ids_in_page.append(video_id)
 341                 titles_in_page.append(video_title)
 342         return zip(ids_in_page, titles_in_page)
 343
 344
 345 class YoutubePlaylistsBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
 346     def _process_page(self, content):
 347         for playlist_id in orderedSet(re.findall(
 348                 r'<h3[^>]+class="[^"]*yt-lockup-title[^"]*"[^>]*><a[^>]+href="/?playlist\?list=([0-9A-Za-z-_]{10,})"',
 349                 content)):
 350             yield self.url_result(
 351                 'https://www.youtube.com/playlist?list=%s' % playlist_id, 'YoutubePlaylist')
 352
 353     def _real_extract(self, url):
 354         playlist_id = self._match_id(url)
 355         webpage = self._download_webpage(url, playlist_id)
 356         title = self._og_search_title(webpage, fatal=False)
 357         return self.playlist_result(self._entries(webpage, playlist_id), playlist_id, title)
 358
 359
 360 class YoutubeIE(YoutubeBaseInfoExtractor):
 361     IE_DESC = 'YouTube.com'
 362     _VALID_URL = r"""(?x)^
 363                      (
 364                          (?:https?://|//)                                    # http(s):// or protocol-independent URL
 365                          (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
 366                             (?:www\.)?deturl\.com/www\.youtube\.com/|
 367                             (?:www\.)?pwnyoutube\.com/|
 368                             (?:www\.)?hooktube\.com/|
 369                             (?:www\.)?yourepeat\.com/|
 370                             tube\.majestyc\.net/|
 371                             (?:(?:www|dev)\.)?invidio\.us/|
 372                             (?:www\.)?invidiou\.sh/|
 373                             (?:www\.)?invidious\.snopyta\.org/|
 374                             (?:www\.)?invidious\.kabi\.tk/|
 375                             (?:www\.)?vid\.wxzm\.sx/|
 376                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
 377                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
 378                          (?:                                                  # the various things that can precede the ID:
 379                              (?:(?:v|embed|e)/(?!videoseries))                # v/ or embed/ or e/
 380                              |(?:                                             # or the v= param in all its forms
 381                                  (?:(?:watch|movie)(?:_popup)?(?:\.php)?/?)?  # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
 382                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #!
 383                                  (?:.*?[&;])??                                # any other preceding param (like /?s=tuff&v=xxxx or ?s=tuff&amp;v=V36LpHqtcDY)
 384                                  v=
 385                              )
 386                          ))
 387                          |(?:
 388                             youtu\.be|                                        # just youtu.be/xxxx
 389                             vid\.plus|                                        # or vid.plus/xxxx
 390                             zwearz\.com/watch|                                # or zwearz.com/watch/xxxx
 391                          )/
 392                          |(?:www\.)?cleanvideosearch\.com/media/action/yt/watch\?videoId=
 393                          )
 394                      )?                                                       # all until now is optional -> you can pass the naked ID
 395                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
 396                      (?!.*?\blist=
 397                         (?:
 398                             %(playlist_id)s|                                  # combined list/video URLs are handled by the playlist IE
 399                             WL                                                # WL are handled by the watch later IE
 400                         )
 401                      )
 402                      (?(1).+)?                                                # if we found the ID, everything can follow
 403                      $""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
 404     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
 405     _formats = {
 406         '5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
 407         '6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
 408         '13': {'ext': '3gp', 'acodec': 'aac', 'vcodec': 'mp4v'},
 409         '17': {'ext': '3gp', 'width': 176, 'height': 144, 'acodec': 'aac', 'abr': 24, 'vcodec': 'mp4v'},
 410         '18': {'ext': 'mp4', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 96, 'vcodec': 'h264'},
 411         '22': {'ext': 'mp4', 'width': 1280, 'height': 720, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
 412         '34': {'ext': 'flv', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
 413         '35': {'ext': 'flv', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
 414         # itag 36 videos are either 320x180 (BaW_jenozKc) or 320x240 (__2ABJjxzNo), abr varies as well
 415         '36': {'ext': '3gp', 'width': 320, 'acodec': 'aac', 'vcodec': 'mp4v'},
 416         '37': {'ext': 'mp4', 'width': 1920, 'height': 1080, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
 417         '38': {'ext': 'mp4', 'width': 4096, 'height': 3072, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
 418         '43': {'ext': 'webm', 'width': 640, 'height': 360, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
 419         '44': {'ext': 'webm', 'width': 854, 'height': 480, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
 420         '45': {'ext': 'webm', 'width': 1280, 'height': 720, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
 421         '46': {'ext': 'webm', 'width': 1920, 'height': 1080, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
 422         '59': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
 423         '78': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
 424
 425
 426         # 3D videos
 427         '82': {'ext': 'mp4', 'height': 360, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
 428         '83': {'ext': 'mp4', 'height': 480, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
 429         '84': {'ext': 'mp4', 'height': 720, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
 430         '85': {'ext': 'mp4', 'height': 1080, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
 431         '100': {'ext': 'webm', 'height': 360, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8', 'preference': -20},
 432         '101': {'ext': 'webm', 'height': 480, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
 433         '102': {'ext': 'webm', 'height': 720, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
 434
 435         # Apple HTTP Live Streaming
 436         '91': {'ext': 'mp4', 'height': 144, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
 437         '92': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
 438         '93': {'ext': 'mp4', 'height': 360, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
 439         '94': {'ext': 'mp4', 'height': 480, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
 440         '95': {'ext': 'mp4', 'height': 720, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
 441         '96': {'ext': 'mp4', 'height': 1080, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
 442         '132': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
 443         '151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 24, 'vcodec': 'h264', 'preference': -10},
 444
 445         # DASH mp4 video
 446         '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'h264'},
 447         '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'h264'},
 448         '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
 449         '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264'},
 450         '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264'},
 451         '138': {'ext': 'mp4', 'format_note': 'DASH video', 'vcodec': 'h264'},  # Height can vary (https://github.com/ytdl-org/youtube-dl/issues/4559)
 452         '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'vcodec': 'h264'},
 453         '212': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
 454         '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'h264'},
 455         '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
 456         '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
 457         '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'h264'},
 458
 459         # Dash mp4 audio
 460         '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 48, 'container': 'm4a_dash'},
 461         '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 128, 'container': 'm4a_dash'},
 462         '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 256, 'container': 'm4a_dash'},
 463         '256': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
 464         '258': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
 465         '325': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'dtse', 'container': 'm4a_dash'},
 466         '328': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'ec-3', 'container': 'm4a_dash'},
 467
 468         # Dash webm
 469         '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
 470         '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
 471         '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
 472         '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
 473         '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
 474         '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
 475         '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp9'},
 476         '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 477         '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 478         '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 479         '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 480         '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 481         '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 482         '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 483         '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 484         # itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug)
 485         '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 486         '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
 487         '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
 488         '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
 489         '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
 490         '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
 491
 492         # Dash webm audio
 493         '171': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 128},
 494         '172': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 256},
 495
 496         # Dash webm audio with opus inside
 497         '249': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50},
 498         '250': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70},
 499         '251': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160},
 500
 501         # RTMP (unnamed)
 502         '_rtmp': {'protocol': 'rtmp'},
 503
 504         # av01 video only formats sometimes served with "unknown" codecs
 505         '394': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
 506         '395': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
 507         '396': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
 508         '397': {'acodec': 'none', 'vcodec': 'av01.0.05M.08'},
 509     }
 510     _SUBTITLE_FORMATS = ('srv1', 'srv2', 'srv3', 'ttml', 'vtt')
 511
 512     _GEO_BYPASS = False
 513
 514     IE_NAME = 'youtube'
 515     _TESTS = [
 516         {
 517             'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&t=1s&end=9',
 518             'info_dict': {
 519                 'id': 'BaW_jenozKc',
 520                 'ext': 'mp4',
 521                 'title': 'youtube-dl test video "\'/\\ä↭𝕐',
 522                 'uploader': 'Philipp Hagemeister',
 523                 'uploader_id': 'phihag',
 524                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
 525                 'channel_id': 'UCLqxVugv74EIW3VWh2NOa3Q',
 526                 'channel_url': r're:https?://(?:www\.)?youtube\.com/channel/UCLqxVugv74EIW3VWh2NOa3Q',
 527                 'upload_date': '20121002',
 528                 'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
 529                 'categories': ['Science & Technology'],
 530                 'tags': ['youtube-dl'],
 531                 'duration': 10,
 532                 'view_count': int,
 533                 'like_count': int,
 534                 'dislike_count': int,
 535                 'start_time': 1,
 536                 'end_time': 9,
 537             }
 538         },
 539         {
 540             'url': 'https://www.youtube.com/watch?v=UxxajLWwzqY',
 541             'note': 'Test generic use_cipher_signature video (#897)',
 542             'info_dict': {
 543                 'id': 'UxxajLWwzqY',
 544                 'ext': 'mp4',
 545                 'upload_date': '20120506',
 546                 'title': 'Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]',
 547                 'alt_title': 'I Love It (feat. Charli XCX)',
 548                 'description': 'md5:f3ceb5ef83a08d95b9d146f973157cc8',
 549                 'tags': ['Icona Pop i love it', 'sweden', 'pop music', 'big beat records', 'big beat', 'charli',
 550                          'xcx', 'charli xcx', 'girls', 'hbo', 'i love it', "i don't care", 'icona', 'pop',
 551                          'iconic ep', 'iconic', 'love', 'it'],
 552                 'duration': 180,
 553                 'uploader': 'Icona Pop',
 554                 'uploader_id': 'IconaPop',
 555                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IconaPop',
 556                 'creator': 'Icona Pop',
 557                 'track': 'I Love It (feat. Charli XCX)',
 558                 'artist': 'Icona Pop',
 559             }
 560         },
 561         {
 562             'url': 'https://www.youtube.com/watch?v=07FYdnEawAQ',
 563             'note': 'Test VEVO video with age protection (#956)',
 564             'info_dict': {
 565                 'id': '07FYdnEawAQ',
 566                 'ext': 'mp4',
 567                 'upload_date': '20130703',
 568                 'title': 'Justin Timberlake - Tunnel Vision (Official Music Video) (Explicit)',
 569                 'alt_title': 'Tunnel Vision',
 570                 'description': 'md5:07dab3356cde4199048e4c7cd93471e1',
 571                 'duration': 419,
 572                 'uploader': 'justintimberlakeVEVO',
 573                 'uploader_id': 'justintimberlakeVEVO',
 574                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/justintimberlakeVEVO',
 575                 'creator': 'Justin Timberlake',
 576                 'track': 'Tunnel Vision',
 577                 'artist': 'Justin Timberlake',
 578                 'age_limit': 18,
 579             }
 580         },
 581         {
 582             'url': '//www.YouTube.com/watch?v=yZIXLfi8CZQ',
 583             'note': 'Embed-only video (#1746)',
 584             'info_dict': {
 585                 'id': 'yZIXLfi8CZQ',
 586                 'ext': 'mp4',
 587                 'upload_date': '20120608',
 588                 'title': 'Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012',
 589                 'description': 'md5:09b78bd971f1e3e289601dfba15ca4f7',
 590                 'uploader': 'SET India',
 591                 'uploader_id': 'setindia',
 592                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/setindia',
 593                 'age_limit': 18,
 594             }
 595         },
 596         {
 597             'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&v=UxxajLWwzqY',
 598             'note': 'Use the first video ID in the URL',
 599             'info_dict': {
 600                 'id': 'BaW_jenozKc',
 601                 'ext': 'mp4',
 602                 'title': 'youtube-dl test video "\'/\\ä↭𝕐',
 603                 'uploader': 'Philipp Hagemeister',
 604                 'uploader_id': 'phihag',
 605                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
 606                 'upload_date': '20121002',
 607                 'description': 'test chars:  "\'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de .',
 608                 'categories': ['Science & Technology'],
 609                 'tags': ['youtube-dl'],
 610                 'duration': 10,
 611                 'view_count': int,
 612                 'like_count': int,
 613                 'dislike_count': int,
 614             },
 615             'params': {
 616                 'skip_download': True,
 617             },
 618         },
 619         {
 620             'url': 'https://www.youtube.com/watch?v=a9LDPn-MO4I',
 621             'note': '256k DASH audio (format 141) via DASH manifest',
 622             'info_dict': {
 623                 'id': 'a9LDPn-MO4I',
 624                 'ext': 'm4a',
 625                 'upload_date': '20121002',
 626                 'uploader_id': '8KVIDEO',
 627                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/8KVIDEO',
 628                 'description': '',
 629                 'uploader': '8KVIDEO',
 630                 'title': 'UHDTV TEST 8K VIDEO.mp4'
 631             },
 632             'params': {
 633                 'youtube_include_dash_manifest': True,
 634                 'format': '141',
 635             },
 636             'skip': 'format 141 not served anymore',
 637         },
 638         # DASH manifest with encrypted signature
 639         {
 640             'url': 'https://www.youtube.com/watch?v=IB3lcPjvWLA',
 641             'info_dict': {
 642                 'id': 'IB3lcPjvWLA',
 643                 'ext': 'm4a',
 644                 'title': 'Afrojack, Spree Wilson - The Spark (Official Music Video) ft. Spree Wilson',
 645                 'description': 'md5:8f5e2b82460520b619ccac1f509d43bf',
 646                 'duration': 244,
 647                 'uploader': 'AfrojackVEVO',
 648                 'uploader_id': 'AfrojackVEVO',
 649                 'upload_date': '20131011',
 650             },
 651             'params': {
 652                 'youtube_include_dash_manifest': True,
 653                 'format': '141/bestaudio[ext=m4a]',
 654             },
 655         },
 656         # JS player signature function name containing $
 657         {
 658             'url': 'https://www.youtube.com/watch?v=nfWlot6h_JM',
 659             'info_dict': {
 660                 'id': 'nfWlot6h_JM',
 661                 'ext': 'm4a',
 662                 'title': 'Taylor Swift - Shake It Off',
 663                 'description': 'md5:bec2185232c05479482cb5a9b82719bf',
 664                 'duration': 242,
 665                 'uploader': 'TaylorSwiftVEVO',
 666                 'uploader_id': 'TaylorSwiftVEVO',
 667                 'upload_date': '20140818',
 668                 'creator': 'Taylor Swift',
 669             },
 670             'params': {
 671                 'youtube_include_dash_manifest': True,
 672                 'format': '141/bestaudio[ext=m4a]',
 673             },
 674         },
 675         # Controversy video
 676         {
 677             'url': 'https://www.youtube.com/watch?v=T4XJQO3qol8',
 678             'info_dict': {
 679                 'id': 'T4XJQO3qol8',
 680                 'ext': 'mp4',
 681                 'duration': 219,
 682                 'upload_date': '20100909',
 683                 'uploader': 'Amazing Atheist',
 684                 'uploader_id': 'TheAmazingAtheist',
 685                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheAmazingAtheist',
 686                 'title': 'Burning Everyone\'s Koran',
 687                 'description': 'SUBSCRIBE: http://www.youtube.com/saturninefilms\n\nEven Obama has taken a stand against freedom on this issue: http://www.huffingtonpost.com/2010/09/09/obama-gma-interview-quran_n_710282.html',
 688             }
 689         },
 690         # Normal age-gate video (No vevo, embed allowed)
 691         {
 692             'url': 'https://youtube.com/watch?v=HtVdAasjOgU',
 693             'info_dict': {
 694                 'id': 'HtVdAasjOgU',
 695                 'ext': 'mp4',
 696                 'title': 'The Witcher 3: Wild Hunt - The Sword Of Destiny Trailer',
 697                 'description': r're:(?s).{100,}About the Game\n.*?The Witcher 3: Wild Hunt.{100,}',
 698                 'duration': 142,
 699                 'uploader': 'The Witcher',
 700                 'uploader_id': 'WitcherGame',
 701                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/WitcherGame',
 702                 'upload_date': '20140605',
 703                 'age_limit': 18,
 704             },
 705         },
 706         # Age-gate video with encrypted signature
 707         {
 708             'url': 'https://www.youtube.com/watch?v=6kLq3WMV1nU',
 709             'info_dict': {
 710                 'id': '6kLq3WMV1nU',
 711                 'ext': 'mp4',
 712                 'title': 'Dedication To My Ex (Miss That) (Lyric Video)',
 713                 'description': 'md5:33765bb339e1b47e7e72b5490139bb41',
 714                 'duration': 246,
 715                 'uploader': 'LloydVEVO',
 716                 'uploader_id': 'LloydVEVO',
 717                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/LloydVEVO',
 718                 'upload_date': '20110629',
 719                 'age_limit': 18,
 720             },
 721         },
 722         # video_info is None (https://github.com/ytdl-org/youtube-dl/issues/4421)
 723         # YouTube Red ad is not captured for creator
 724         {
 725             'url': '__2ABJjxzNo',
 726             'info_dict': {
 727                 'id': '__2ABJjxzNo',
 728                 'ext': 'mp4',
 729                 'duration': 266,
 730                 'upload_date': '20100430',
 731                 'uploader_id': 'deadmau5',
 732                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/deadmau5',
 733                 'creator': 'deadmau5',
 734                 'description': 'md5:12c56784b8032162bb936a5f76d55360',
 735                 'uploader': 'deadmau5',
 736                 'title': 'Deadmau5 - Some Chords (HD)',
 737                 'alt_title': 'Some Chords',
 738             },
 739             'expected_warnings': [
 740                 'DASH manifest missing',
 741             ]
 742         },
 743         # Olympics (https://github.com/ytdl-org/youtube-dl/issues/4431)
 744         {
 745             'url': 'lqQg6PlCWgI',
 746             'info_dict': {
 747                 'id': 'lqQg6PlCWgI',
 748                 'ext': 'mp4',
 749                 'duration': 6085,
 750                 'upload_date': '20150827',
 751                 'uploader_id': 'olympic',
 752                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/olympic',
 753                 'description': 'HO09  - Women -  GER-AUS - Hockey - 31 July 2012 - London 2012 Olympic Games',
 754                 'uploader': 'Olympic',
 755                 'title': 'Hockey - Women -  GER-AUS - London 2012 Olympic Games',
 756             },
 757             'params': {
 758                 'skip_download': 'requires avconv',
 759             }
 760         },
 761         # Non-square pixels
 762         {
 763             'url': 'https://www.youtube.com/watch?v=_b-2C3KPAM0',
 764             'info_dict': {
 765                 'id': '_b-2C3KPAM0',
 766                 'ext': 'mp4',
 767                 'stretched_ratio': 16 / 9.,
 768                 'duration': 85,
 769                 'upload_date': '20110310',
 770                 'uploader_id': 'AllenMeow',
 771                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/AllenMeow',
 772                 'description': 'made by Wacom from Korea | 字幕&加油添醋 by TY\'s Allen | 感謝heylisa00cavey1001同學熱情提供梗及翻譯',
 773                 'uploader': '孫ᄋᄅ',
 774                 'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
 775             },
 776         },
 777         # url_encoded_fmt_stream_map is empty string
 778         {
 779             'url': 'qEJwOuvDf7I',
 780             'info_dict': {
 781                 'id': 'qEJwOuvDf7I',
 782                 'ext': 'webm',
 783                 'title': 'Обсуждение судебной практики по выборам 14 сентября 2014 года в Санкт-Петербурге',
 784                 'description': '',
 785                 'upload_date': '20150404',
 786                 'uploader_id': 'spbelect',
 787                 'uploader': 'Наблюдатели Петербурга',
 788             },
 789             'params': {
 790                 'skip_download': 'requires avconv',
 791             },
 792             'skip': 'This live event has ended.',
 793         },
 794         # Extraction from multiple DASH manifests (https://github.com/ytdl-org/youtube-dl/pull/6097)
 795         {
 796             'url': 'https://www.youtube.com/watch?v=FIl7x6_3R5Y',
 797             'info_dict': {
 798                 'id': 'FIl7x6_3R5Y',
 799                 'ext': 'webm',
 800                 'title': 'md5:7b81415841e02ecd4313668cde88737a',
 801                 'description': 'md5:116377fd2963b81ec4ce64b542173306',
 802                 'duration': 220,
 803                 'upload_date': '20150625',
 804                 'uploader_id': 'dorappi2000',
 805                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/dorappi2000',
 806                 'uploader': 'dorappi2000',
 807                 'formats': 'mincount:31',
 808             },
 809             'skip': 'not actual anymore',
 810         },
 811         # DASH manifest with segment_list
 812         {
 813             'url': 'https://www.youtube.com/embed/CsmdDsKjzN8',
 814             'md5': '8ce563a1d667b599d21064e982ab9e31',
 815             'info_dict': {
 816                 'id': 'CsmdDsKjzN8',
 817                 'ext': 'mp4',
 818                 'upload_date': '20150501',  # According to '<meta itemprop="datePublished"', but in other places it's 20150510
 819                 'uploader': 'Airtek',
 820                 'description': 'Retransmisión en directo de la XVIII media maratón de Zaragoza.',
 821                 'uploader_id': 'UCzTzUmjXxxacNnL8I3m4LnQ',
 822                 'title': 'Retransmisión XVIII Media maratón Zaragoza 2015',
 823             },
 824             'params': {
 825                 'youtube_include_dash_manifest': True,
 826                 'format': '135',  # bestvideo
 827             },
 828             'skip': 'This live event has ended.',
 829         },
 830         {
 831             # Multifeed videos (multiple cameras), URL is for Main Camera
 832             'url': 'https://www.youtube.com/watch?v=jqWvoWXjCVs',
 833             'info_dict': {
 834                 'id': 'jqWvoWXjCVs',
 835                 'title': 'teamPGP: Rocket League Noob Stream',
 836                 'description': 'md5:dc7872fb300e143831327f1bae3af010',
 837             },
 838             'playlist': [{
 839                 'info_dict': {
 840                     'id': 'jqWvoWXjCVs',
 841                     'ext': 'mp4',
 842                     'title': 'teamPGP: Rocket League Noob Stream (Main Camera)',
 843                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 844                     'duration': 7335,
 845                     'upload_date': '20150721',
 846                     'uploader': 'Beer Games Beer',
 847                     'uploader_id': 'beergamesbeer',
 848                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
 849                     'license': 'Standard YouTube License',
 850                 },
 851             }, {
 852                 'info_dict': {
 853                     'id': '6h8e8xoXJzg',
 854                     'ext': 'mp4',
 855                     'title': 'teamPGP: Rocket League Noob Stream (kreestuh)',
 856                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 857                     'duration': 7337,
 858                     'upload_date': '20150721',
 859                     'uploader': 'Beer Games Beer',
 860                     'uploader_id': 'beergamesbeer',
 861                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
 862                     'license': 'Standard YouTube License',
 863                 },
 864             }, {
 865                 'info_dict': {
 866                     'id': 'PUOgX5z9xZw',
 867                     'ext': 'mp4',
 868                     'title': 'teamPGP: Rocket League Noob Stream (grizzle)',
 869                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 870                     'duration': 7337,
 871                     'upload_date': '20150721',
 872                     'uploader': 'Beer Games Beer',
 873                     'uploader_id': 'beergamesbeer',
 874                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
 875                     'license': 'Standard YouTube License',
 876                 },
 877             }, {
 878                 'info_dict': {
 879                     'id': 'teuwxikvS5k',
 880                     'ext': 'mp4',
 881                     'title': 'teamPGP: Rocket League Noob Stream (zim)',
 882                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
 883                     'duration': 7334,
 884                     'upload_date': '20150721',
 885                     'uploader': 'Beer Games Beer',
 886                     'uploader_id': 'beergamesbeer',
 887                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
 888                     'license': 'Standard YouTube License',
 889                 },
 890             }],
 891             'params': {
 892                 'skip_download': True,
 893             },
 894             'skip': 'This video is not available.',
 895         },
 896         {
 897             # Multifeed video with comma in title (see https://github.com/ytdl-org/youtube-dl/issues/8536)
 898             'url': 'https://www.youtube.com/watch?v=gVfLd0zydlo',
 899             'info_dict': {
 900                 'id': 'gVfLd0zydlo',
 901                 'title': 'DevConf.cz 2016 Day 2 Workshops 1 14:00 - 15:30',
 902             },
 903             'playlist_count': 2,
 904             'skip': 'Not multifeed anymore',
 905         },
 906         {
 907             'url': 'https://vid.plus/FlRa-iH7PGw',
 908             'only_matching': True,
 909         },
 910         {
 911             'url': 'https://zwearz.com/watch/9lWxNJF-ufM/electra-woman-dyna-girl-official-trailer-grace-helbig.html',
 912             'only_matching': True,
 913         },
 914         {
 915             # Title with JS-like syntax "};" (see https://github.com/ytdl-org/youtube-dl/issues/7468)
 916             # Also tests cut-off URL expansion in video description (see
 917             # https://github.com/ytdl-org/youtube-dl/issues/1892,
 918             # https://github.com/ytdl-org/youtube-dl/issues/8164)
 919             'url': 'https://www.youtube.com/watch?v=lsguqyKfVQg',
 920             'info_dict': {
 921                 'id': 'lsguqyKfVQg',
 922                 'ext': 'mp4',
 923                 'title': '{dark walk}; Loki/AC/Dishonored; collab w/Elflover21',
 924                 'alt_title': 'Dark Walk - Position Music',
 925                 'description': 'md5:8085699c11dc3f597ce0410b0dcbb34a',
 926                 'duration': 133,
 927                 'upload_date': '20151119',
 928                 'uploader_id': 'IronSoulElf',
 929                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IronSoulElf',
 930                 'uploader': 'IronSoulElf',
 931                 'creator': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
 932                 'track': 'Dark Walk - Position Music',
 933                 'artist': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
 934                 'album': 'Position Music - Production Music Vol. 143 - Dark Walk',
 935             },
 936             'params': {
 937                 'skip_download': True,
 938             },
 939         },
 940         {
 941             # Tags with '};' (see https://github.com/ytdl-org/youtube-dl/issues/7468)
 942             'url': 'https://www.youtube.com/watch?v=Ms7iBXnlUO8',
 943             'only_matching': True,
 944         },
 945         {
 946             # Video with yt:stretch=17:0
 947             'url': 'https://www.youtube.com/watch?v=Q39EVAstoRM',
 948             'info_dict': {
 949                 'id': 'Q39EVAstoRM',
 950                 'ext': 'mp4',
 951                 'title': 'Clash Of Clans#14 Dicas De Ataque Para CV 4',
 952                 'description': 'md5:ee18a25c350637c8faff806845bddee9',
 953                 'upload_date': '20151107',
 954                 'uploader_id': 'UCCr7TALkRbo3EtFzETQF1LA',
 955                 'uploader': 'CH GAMER DROID',
 956             },
 957             'params': {
 958                 'skip_download': True,
 959             },
 960             'skip': 'This video does not exist.',
 961         },
 962         {
 963             # Video licensed under Creative Commons
 964             'url': 'https://www.youtube.com/watch?v=M4gD1WSo5mA',
 965             'info_dict': {
 966                 'id': 'M4gD1WSo5mA',
 967                 'ext': 'mp4',
 968                 'title': 'md5:e41008789470fc2533a3252216f1c1d1',
 969                 'description': 'md5:a677553cf0840649b731a3024aeff4cc',
 970                 'duration': 721,
 971                 'upload_date': '20150127',
 972                 'uploader_id': 'BerkmanCenter',
 973                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/BerkmanCenter',
 974                 'uploader': 'The Berkman Klein Center for Internet & Society',
 975                 'license': 'Creative Commons Attribution license (reuse allowed)',
 976             },
 977             'params': {
 978                 'skip_download': True,
 979             },
 980         },
 981         {
 982             # Channel-like uploader_url
 983             'url': 'https://www.youtube.com/watch?v=eQcmzGIKrzg',
 984             'info_dict': {
 985                 'id': 'eQcmzGIKrzg',
 986                 'ext': 'mp4',
 987                 'title': 'Democratic Socialism and Foreign Policy | Bernie Sanders',
 988                 'description': 'md5:dda0d780d5a6e120758d1711d062a867',
 989                 'duration': 4060,
 990                 'upload_date': '20151119',
 991                 'uploader': 'Bernie Sanders',
 992                 'uploader_id': 'UCH1dpzjCEiGAt8CXkryhkZg',
 993                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCH1dpzjCEiGAt8CXkryhkZg',
 994                 'license': 'Creative Commons Attribution license (reuse allowed)',
 995             },
 996             'params': {
 997                 'skip_download': True,
 998             },
 999         },
1000         {
1001             'url': 'https://www.youtube.com/watch?feature=player_embedded&amp;amp;v=V36LpHqtcDY',
1002             'only_matching': True,
1003         },
1004         {
1005             # YouTube Red paid video (https://github.com/ytdl-org/youtube-dl/issues/10059)
1006             'url': 'https://www.youtube.com/watch?v=i1Ko8UG-Tdo',
1007             'only_matching': True,
1008         },
1009         {
1010             # Rental video preview
1011             'url': 'https://www.youtube.com/watch?v=yYr8q0y5Jfg',
1012             'info_dict': {
1013                 'id': 'uGpuVWrhIzE',
1014                 'ext': 'mp4',
1015                 'title': 'Piku - Trailer',
1016                 'description': 'md5:c36bd60c3fd6f1954086c083c72092eb',
1017                 'upload_date': '20150811',
1018                 'uploader': 'FlixMatrix',
1019                 'uploader_id': 'FlixMatrixKaravan',
1020                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/FlixMatrixKaravan',
1021                 'license': 'Standard YouTube License',
1022             },
1023             'params': {
1024                 'skip_download': True,
1025             },
1026             'skip': 'This video is not available.',
1027         },
1028         {
1029             # YouTube Red video with episode data
1030             'url': 'https://www.youtube.com/watch?v=iqKdEhx-dD4',
1031             'info_dict': {
1032                 'id': 'iqKdEhx-dD4',
1033                 'ext': 'mp4',
1034                 'title': 'Isolation - Mind Field (Ep 1)',
1035                 'description': 'md5:46a29be4ceffa65b92d277b93f463c0f',
1036                 'duration': 2085,
1037                 'upload_date': '20170118',
1038                 'uploader': 'Vsauce',
1039                 'uploader_id': 'Vsauce',
1040                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/Vsauce',
1041                 'series': 'Mind Field',
1042                 'season_number': 1,
1043                 'episode_number': 1,
1044             },
1045             'params': {
1046                 'skip_download': True,
1047             },
1048             'expected_warnings': [
1049                 'Skipping DASH manifest',
1050             ],
1051         },
1052         {
1053             # The following content has been identified by the YouTube community
1054             # as inappropriate or offensive to some audiences.
1055             'url': 'https://www.youtube.com/watch?v=6SJNVb0GnPI',
1056             'info_dict': {
1057                 'id': '6SJNVb0GnPI',
1058                 'ext': 'mp4',
1059                 'title': 'Race Differences in Intelligence',
1060                 'description': 'md5:5d161533167390427a1f8ee89a1fc6f1',
1061                 'duration': 965,
1062                 'upload_date': '20140124',
1063                 'uploader': 'New Century Foundation',
1064                 'uploader_id': 'UCEJYpZGqgUob0zVVEaLhvVg',
1065                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCEJYpZGqgUob0zVVEaLhvVg',
1066             },
1067             'params': {
1068                 'skip_download': True,
1069             },
1070         },
1071         {
1072             # itag 212
1073             'url': '1t24XAntNCY',
1074             'only_matching': True,
1075         },
1076         {
1077             # geo restricted to JP
1078             'url': 'sJL6WA-aGkQ',
1079             'only_matching': True,
1080         },
1081         {
1082             'url': 'https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM',
1083             'only_matching': True,
1084         },
1085         {
1086             'url': 'https://invidio.us/watch?v=BaW_jenozKc',
1087             'only_matching': True,
1088         },
1089         {
1090             # DRM protected
1091             'url': 'https://www.youtube.com/watch?v=s7_qI6_mIXc',
1092             'only_matching': True,
1093         },
1094         {
1095             # Video with unsupported adaptive stream type formats
1096             'url': 'https://www.youtube.com/watch?v=Z4Vy8R84T1U',
1097             'info_dict': {
1098                 'id': 'Z4Vy8R84T1U',
1099                 'ext': 'mp4',
1100                 'title': 'saman SMAN 53 Jakarta(Sancety) opening COFFEE4th at SMAN 53 Jakarta',
1101                 'description': 'md5:d41d8cd98f00b204e9800998ecf8427e',
1102                 'duration': 433,
1103                 'upload_date': '20130923',
1104                 'uploader': 'Amelia Putri Harwita',
1105                 'uploader_id': 'UCpOxM49HJxmC1qCalXyB3_Q',
1106                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCpOxM49HJxmC1qCalXyB3_Q',
1107                 'formats': 'maxcount:10',
1108             },
1109             'params': {
1110                 'skip_download': True,
1111                 'youtube_include_dash_manifest': False,
1112             },
1113         },
1114         {
1115             # Youtube Music Auto-generated description
1116             'url': 'https://music.youtube.com/watch?v=MgNrAu2pzNs',
1117             'info_dict': {
1118                 'id': 'MgNrAu2pzNs',
1119                 'ext': 'mp4',
1120                 'title': 'Voyeur Girl',
1121                 'description': 'md5:7ae382a65843d6df2685993e90a8628f',
1122                 'upload_date': '20190312',
1123                 'uploader': 'Various Artists - Topic',
1124                 'uploader_id': 'UCVWKBi1ELZn0QX2CBLSkiyw',
1125                 'artist': 'Stephen',
1126                 'track': 'Voyeur Girl',
1127                 'album': 'it\'s too much love to know my dear',
1128                 'release_date': '20190313',
1129                 'release_year': 2019,
1130             },
1131             'params': {
1132                 'skip_download': True,
1133             },
1134         },
1135         {
1136             # Youtube Music Auto-generated description
1137             # Retrieve 'artist' field from 'Artist:' in video description
1138             # when it is present on youtube music video
1139             'url': 'https://www.youtube.com/watch?v=k0jLE7tTwjY',
1140             'info_dict': {
1141                 'id': 'k0jLE7tTwjY',
1142                 'ext': 'mp4',
1143                 'title': 'Latch Feat. Sam Smith',
1144                 'description': 'md5:3cb1e8101a7c85fcba9b4fb41b951335',
1145                 'upload_date': '20150110',
1146                 'uploader': 'Various Artists - Topic',
1147                 'uploader_id': 'UCNkEcmYdjrH4RqtNgh7BZ9w',
1148                 'artist': 'Disclosure',
1149                 'track': 'Latch Feat. Sam Smith',
1150                 'album': 'Latch Featuring Sam Smith',
1151                 'release_date': '20121008',
1152                 'release_year': 2012,
1153             },
1154             'params': {
1155                 'skip_download': True,
1156             },
1157         },
1158         {
1159             # Youtube Music Auto-generated description
1160             # handle multiple artists on youtube music video
1161             'url': 'https://www.youtube.com/watch?v=74qn0eJSjpA',
1162             'info_dict': {
1163                 'id': '74qn0eJSjpA',
1164                 'ext': 'mp4',
1165                 'title': 'Eastside',
1166                 'description': 'md5:290516bb73dcbfab0dcc4efe6c3de5f2',
1167                 'upload_date': '20180710',
1168                 'uploader': 'Benny Blanco - Topic',
1169                 'uploader_id': 'UCzqz_ksRu_WkIzmivMdIS7A',
1170                 'artist': 'benny blanco, Halsey, Khalid',
1171                 'track': 'Eastside',
1172                 'album': 'Eastside',
1173                 'release_date': '20180713',
1174                 'release_year': 2018,
1175             },
1176             'params': {
1177                 'skip_download': True,
1178             },
1179         },
1180         {
1181             # Youtube Music Auto-generated description
1182             # handle youtube music video with release_year and no release_date
1183             'url': 'https://www.youtube.com/watch?v=-hcAI0g-f5M',
1184             'info_dict': {
1185                 'id': '-hcAI0g-f5M',
1186                 'ext': 'mp4',
1187                 'title': 'Put It On Me',
1188                 'description': 'md5:93c55acc682ae7b0c668f2e34e1c069e',
1189                 'upload_date': '20180426',
1190                 'uploader': 'Matt Maeson - Topic',
1191                 'uploader_id': 'UCnEkIGqtGcQMLk73Kp-Q5LQ',
1192                 'artist': 'Matt Maeson',
1193                 'track': 'Put It On Me',
1194                 'album': 'The Hearse',
1195                 'release_date': None,
1196                 'release_year': 2018,
1197             },
1198             'params': {
1199                 'skip_download': True,
1200             },
1201         },
1202     ]
1203
1204     def __init__(self, *args, **kwargs):
1205         super(YoutubeIE, self).__init__(*args, **kwargs)
1206         self._player_cache = {}
1207
1208     def report_video_info_webpage_download(self, video_id):
1209         """Report attempt to download video info webpage."""
1210         self.to_screen('%s: Downloading video info webpage' % video_id)
1211
1212     def report_information_extraction(self, video_id):
1213         """Report attempt to extract video information."""
1214         self.to_screen('%s: Extracting video information' % video_id)
1215
1216     def report_unavailable_format(self, video_id, format):
1217         """Report extracted video URL."""
1218         self.to_screen('%s: Format %s not available' % (video_id, format))
1219
1220     def report_rtmp_download(self):
1221         """Indicate the download will use the RTMP protocol."""
1222         self.to_screen('RTMP download detected')
1223
1224     def _signature_cache_id(self, example_sig):
1225         """ Return a string representation of a signature """
1226         return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
1227
1228     def _extract_signature_function(self, video_id, player_url, example_sig):
1229         id_m = re.match(
1230             r'.*?-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player(?:-new)?|(?:/[a-z]{2,3}_[A-Z]{2})?/base)?\.(?P<ext>[a-z]+)$',
1231             player_url)
1232         if not id_m:
1233             raise ExtractorError('Cannot identify player %r' % player_url)
1234         player_type = id_m.group('ext')
1235         player_id = id_m.group('id')
1236
1237         # Read from filesystem cache
1238         func_id = '%s_%s_%s' % (
1239             player_type, player_id, self._signature_cache_id(example_sig))
1240         assert os.path.basename(func_id) == func_id
1241
1242         cache_spec = self._downloader.cache.load('youtube-sigfuncs', func_id)
1243         if cache_spec is not None:
1244             return lambda s: ''.join(s[i] for i in cache_spec)
1245
1246         download_note = (
1247             'Downloading player %s' % player_url
1248             if self._downloader.params.get('verbose') else
1249             'Downloading %s player %s' % (player_type, player_id)
1250         )
1251         if player_type == 'js':
1252             code = self._download_webpage(
1253                 player_url, video_id,
1254                 note=download_note,
1255                 errnote='Download of %s failed' % player_url)
1256             res = self._parse_sig_js(code)
1257         elif player_type == 'swf':
1258             urlh = self._request_webpage(
1259                 player_url, video_id,
1260                 note=download_note,
1261                 errnote='Download of %s failed' % player_url)
1262             code = urlh.read()
1263             res = self._parse_sig_swf(code)
1264         else:
1265             assert False, 'Invalid player type %r' % player_type
1266
1267         test_string = ''.join(map(compat_chr, range(len(example_sig))))
1268         cache_res = res(test_string)
1269         cache_spec = [ord(c) for c in cache_res]
1270
1271         self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
1272         return res
1273
1274     def _print_sig_code(self, func, example_sig):
1275         def gen_sig_code(idxs):
1276             def _genslice(start, end, step):
1277                 starts = '' if start == 0 else str(start)
1278                 ends = (':%d' % (end + step)) if end + step >= 0 else ':'
1279                 steps = '' if step == 1 else (':%d' % step)
1280                 return 's[%s%s%s]' % (starts, ends, steps)
1281
1282             step = None
1283             # Quelch pyflakes warnings - start will be set when step is set
1284             start = '(Never used)'
1285             for i, prev in zip(idxs[1:], idxs[:-1]):
1286                 if step is not None:
1287                     if i - prev == step:
1288                         continue
1289                     yield _genslice(start, prev, step)
1290                     step = None
1291                     continue
1292                 if i - prev in [-1, 1]:
1293                     step = i - prev
1294                     start = prev
1295                     continue
1296                 else:
1297                     yield 's[%d]' % prev
1298             if step is None:
1299                 yield 's[%d]' % i
1300             else:
1301                 yield _genslice(start, i, step)
1302
1303         test_string = ''.join(map(compat_chr, range(len(example_sig))))
1304         cache_res = func(test_string)
1305         cache_spec = [ord(c) for c in cache_res]
1306         expr_code = ' + '.join(gen_sig_code(cache_spec))
1307         signature_id_tuple = '(%s)' % (
1308             ', '.join(compat_str(len(p)) for p in example_sig.split('.')))
1309         code = ('if tuple(len(p) for p in s.split(\'.\')) == %s:\n'
1310                 '    return %s\n') % (signature_id_tuple, expr_code)
1311         self.to_screen('Extracted signature function:\n' + code)
1312
1313     def _parse_sig_js(self, jscode):
1314         funcname = self._search_regex(
1315             (r'(["\'])signature\1\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
1316              r'\.sig\|\|(?P<sig>[a-zA-Z0-9$]+)\(',
1317              r'yt\.akamaized\.net/\)\s*\|\|\s*.*?\s*c\s*&&\s*d\.set\([^,]+\s*,\s*(?:encodeURIComponent\s*\()?(?P<sig>[a-zA-Z0-9$]+)\(',
1318              r'\bc\s*&&\s*d\.set\([^,]+\s*,\s*(?:encodeURIComponent\s*\()?\s*(?P<sig>[a-zA-Z0-9$]+)\(',
1319              r'\bc\s*&&\s*d\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('),
1320             jscode, 'Initial JS player signature function name', group='sig')
1321
1322         jsi = JSInterpreter(jscode)
1323         initial_function = jsi.extract_function(funcname)
1324         return lambda s: initial_function([s])
1325
1326     def _parse_sig_swf(self, file_contents):
1327         swfi = SWFInterpreter(file_contents)
1328         TARGET_CLASSNAME = 'SignatureDecipher'
1329         searched_class = swfi.extract_class(TARGET_CLASSNAME)
1330         initial_function = swfi.extract_function(searched_class, 'decipher')
1331         return lambda s: initial_function([s])
1332
1333     def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
1334         """Turn the encrypted s field into a working signature"""
1335
1336         if player_url is None:
1337             raise ExtractorError('Cannot decrypt signature without player_url')
1338
1339         if player_url.startswith('//'):
1340             player_url = 'https:' + player_url
1341         elif not re.match(r'https?://', player_url):
1342             player_url = compat_urlparse.urljoin(
1343                 'https://www.youtube.com', player_url)
1344         try:
1345             player_id = (player_url, self._signature_cache_id(s))
1346             if player_id not in self._player_cache:
1347                 func = self._extract_signature_function(
1348                     video_id, player_url, s
1349                 )
1350                 self._player_cache[player_id] = func
1351             func = self._player_cache[player_id]
1352             if self._downloader.params.get('youtube_print_sig_code'):
1353                 self._print_sig_code(func, s)
1354             return func(s)
1355         except Exception as e:
1356             tb = traceback.format_exc()
1357             raise ExtractorError(
1358                 'Signature extraction failed: ' + tb, cause=e)
1359
1360     def _get_subtitles(self, video_id, webpage):
1361         try:
1362             subs_doc = self._download_xml(
1363                 'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
1364                 video_id, note=False)
1365         except ExtractorError as err:
1366             self._downloader.report_warning('unable to download video subtitles: %s' % error_to_compat_str(err))
1367             return {}
1368
1369         sub_lang_list = {}
1370         for track in subs_doc.findall('track'):
1371             lang = track.attrib['lang_code']
1372             if lang in sub_lang_list:
1373                 continue
1374             sub_formats = []
1375             for ext in self._SUBTITLE_FORMATS:
1376                 params = compat_urllib_parse_urlencode({
1377                     'lang': lang,
1378                     'v': video_id,
1379                     'fmt': ext,
1380                     'name': track.attrib['name'].encode('utf-8'),
1381                 })
1382                 sub_formats.append({
1383                     'url': 'https://www.youtube.com/api/timedtext?' + params,
1384                     'ext': ext,
1385                 })
1386             sub_lang_list[lang] = sub_formats
1387         if not sub_lang_list:
1388             self._downloader.report_warning('video doesn\'t have subtitles')
1389             return {}
1390         return sub_lang_list
1391
1392     def _get_ytplayer_config(self, video_id, webpage):
1393         patterns = (
1394             # User data may contain arbitrary character sequences that may affect
1395             # JSON extraction with regex, e.g. when '};' is contained the second
1396             # regex won't capture the whole JSON. Yet working around by trying more
1397             # concrete regex first keeping in mind proper quoted string handling
1398             # to be implemented in future that will replace this workaround (see
1399             # https://github.com/ytdl-org/youtube-dl/issues/7468,
1400             # https://github.com/ytdl-org/youtube-dl/pull/7599)
1401             r';ytplayer\.config\s*=\s*({.+?});ytplayer',
1402             r';ytplayer\.config\s*=\s*({.+?});',
1403         )
1404         config = self._search_regex(
1405             patterns, webpage, 'ytplayer.config', default=None)
1406         if config:
1407             return self._parse_json(
1408                 uppercase_escape(config), video_id, fatal=False)
1409
1410     def _get_automatic_captions(self, video_id, webpage):
1411         """We need the webpage for getting the captions url, pass it as an
1412            argument to speed up the process."""
1413         self.to_screen('%s: Looking for automatic captions' % video_id)
1414         player_config = self._get_ytplayer_config(video_id, webpage)
1415         err_msg = 'Couldn\'t find automatic captions for %s' % video_id
1416         if not player_config:
1417             self._downloader.report_warning(err_msg)
1418             return {}
1419         try:
1420             args = player_config['args']
1421             caption_url = args.get('ttsurl')
1422             if caption_url:
1423                 timestamp = args['timestamp']
1424                 # We get the available subtitles
1425                 list_params = compat_urllib_parse_urlencode({
1426                     'type': 'list',
1427                     'tlangs': 1,
1428                     'asrs': 1,
1429                 })
1430                 list_url = caption_url + '&' + list_params
1431                 caption_list = self._download_xml(list_url, video_id)
1432                 original_lang_node = caption_list.find('track')
1433                 if original_lang_node is None:
1434                     self._downloader.report_warning('Video doesn\'t have automatic captions')
1435                     return {}
1436                 original_lang = original_lang_node.attrib['lang_code']
1437                 caption_kind = original_lang_node.attrib.get('kind', '')
1438
1439                 sub_lang_list = {}
1440                 for lang_node in caption_list.findall('target'):
1441                     sub_lang = lang_node.attrib['lang_code']
1442                     sub_formats = []
1443                     for ext in self._SUBTITLE_FORMATS:
1444                         params = compat_urllib_parse_urlencode({
1445                             'lang': original_lang,
1446                             'tlang': sub_lang,
1447                             'fmt': ext,
1448                             'ts': timestamp,
1449                             'kind': caption_kind,
1450                         })
1451                         sub_formats.append({
1452                             'url': caption_url + '&' + params,
1453                             'ext': ext,
1454                         })
1455                     sub_lang_list[sub_lang] = sub_formats
1456                 return sub_lang_list
1457
1458             def make_captions(sub_url, sub_langs):
1459                 parsed_sub_url = compat_urllib_parse_urlparse(sub_url)
1460                 caption_qs = compat_parse_qs(parsed_sub_url.query)
1461                 captions = {}
1462                 for sub_lang in sub_langs:
1463                     sub_formats = []
1464                     for ext in self._SUBTITLE_FORMATS:
1465                         caption_qs.update({
1466                             'tlang': [sub_lang],
1467                             'fmt': [ext],
1468                         })
1469                         sub_url = compat_urlparse.urlunparse(parsed_sub_url._replace(
1470                             query=compat_urllib_parse_urlencode(caption_qs, True)))
1471                         sub_formats.append({
1472                             'url': sub_url,
1473                             'ext': ext,
1474                         })
1475                     captions[sub_lang] = sub_formats
1476                 return captions
1477
1478             # New captions format as of 22.06.2017
1479             player_response = args.get('player_response')
1480             if player_response and isinstance(player_response, compat_str):
1481                 player_response = self._parse_json(
1482                     player_response, video_id, fatal=False)
1483                 if player_response:
1484                     renderer = player_response['captions']['playerCaptionsTracklistRenderer']
1485                     base_url = renderer['captionTracks'][0]['baseUrl']
1486                     sub_lang_list = []
1487                     for lang in renderer['translationLanguages']:
1488                         lang_code = lang.get('languageCode')
1489                         if lang_code:
1490                             sub_lang_list.append(lang_code)
1491                     return make_captions(base_url, sub_lang_list)
1492
1493             # Some videos don't provide ttsurl but rather caption_tracks and
1494             # caption_translation_languages (e.g. 20LmZk1hakA)
1495             # Does not used anymore as of 22.06.2017
1496             caption_tracks = args['caption_tracks']
1497             caption_translation_languages = args['caption_translation_languages']
1498             caption_url = compat_parse_qs(caption_tracks.split(',')[0])['u'][0]
1499             sub_lang_list = []
1500             for lang in caption_translation_languages.split(','):
1501                 lang_qs = compat_parse_qs(compat_urllib_parse_unquote_plus(lang))
1502                 sub_lang = lang_qs.get('lc', [None])[0]
1503                 if sub_lang:
1504                     sub_lang_list.append(sub_lang)
1505             return make_captions(caption_url, sub_lang_list)
1506         # An extractor error can be raise by the download process if there are
1507         # no automatic captions but there are subtitles
1508         except (KeyError, IndexError, ExtractorError):
1509             self._downloader.report_warning(err_msg)
1510             return {}
1511
1512     def _mark_watched(self, video_id, video_info, player_response):
1513         playback_url = url_or_none(try_get(
1514             player_response,
1515             lambda x: x['playbackTracking']['videostatsPlaybackUrl']['baseUrl']) or try_get(
1516             video_info, lambda x: x['videostats_playback_base_url'][0]))
1517         if not playback_url:
1518             return
1519         parsed_playback_url = compat_urlparse.urlparse(playback_url)
1520         qs = compat_urlparse.parse_qs(parsed_playback_url.query)
1521
1522         # cpn generation algorithm is reverse engineered from base.js.
1523         # In fact it works even with dummy cpn.
1524         CPN_ALPHABET = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_'
1525         cpn = ''.join((CPN_ALPHABET[random.randint(0, 256) & 63] for _ in range(0, 16)))
1526
1527         qs.update({
1528             'ver': ['2'],
1529             'cpn': [cpn],
1530         })
1531         playback_url = compat_urlparse.urlunparse(
1532             parsed_playback_url._replace(query=compat_urllib_parse_urlencode(qs, True)))
1533
1534         self._download_webpage(
1535             playback_url, video_id, 'Marking watched',
1536             'Unable to mark watched', fatal=False)
1537
1538     @staticmethod
1539     def _extract_urls(webpage):
1540         # Embedded YouTube player
1541         entries = [
1542             unescapeHTML(mobj.group('url'))
1543             for mobj in re.finditer(r'''(?x)
1544             (?:
1545                 <iframe[^>]+?src=|
1546                 data-video-url=|
1547                 <embed[^>]+?src=|
1548                 embedSWF\(?:\s*|
1549                 <object[^>]+data=|
1550                 new\s+SWFObject\(
1551             )
1552             (["\'])
1553                 (?P<url>(?:https?:)?//(?:www\.)?youtube(?:-nocookie)?\.com/
1554                 (?:embed|v|p)/[0-9A-Za-z_-]{11}.*?)
1555             \1''', webpage)]
1556
1557         # lazyYT YouTube embed
1558         entries.extend(list(map(
1559             unescapeHTML,
1560             re.findall(r'class="lazyYT" data-youtube-id="([^"]+)"', webpage))))
1561
1562         # Wordpress "YouTube Video Importer" plugin
1563         matches = re.findall(r'''(?x)<div[^>]+
1564             class=(?P<q1>[\'"])[^\'"]*\byvii_single_video_player\b[^\'"]*(?P=q1)[^>]+
1565             data-video_id=(?P<q2>[\'"])([^\'"]+)(?P=q2)''', webpage)
1566         entries.extend(m[-1] for m in matches)
1567
1568         return entries
1569
1570     @staticmethod
1571     def _extract_url(webpage):
1572         urls = YoutubeIE._extract_urls(webpage)
1573         return urls[0] if urls else None
1574
1575     @classmethod
1576     def extract_id(cls, url):
1577         mobj = re.match(cls._VALID_URL, url, re.VERBOSE)
1578         if mobj is None:
1579             raise ExtractorError('Invalid URL: %s' % url)
1580         video_id = mobj.group(2)
1581         return video_id
1582
1583     def _extract_annotations(self, video_id):
1584         url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
1585         return self._download_webpage(url, video_id, note='Searching for annotations.', errnote='Unable to download video annotations.')
1586
1587     @staticmethod
1588     def _extract_chapters(description, duration):
1589         if not description:
1590             return None
1591         chapter_lines = re.findall(
1592             r'(?:^|<br\s*/>)([^<]*<a[^>]+onclick=["\']yt\.www\.watch\.player\.seekTo[^>]+>(\d{1,2}:\d{1,2}(?::\d{1,2})?)</a>[^>]*)(?=$|<br\s*/>)',
1593             description)
1594         if not chapter_lines:
1595             return None
1596         chapters = []
1597         for next_num, (chapter_line, time_point) in enumerate(
1598                 chapter_lines, start=1):
1599             start_time = parse_duration(time_point)
1600             if start_time is None:
1601                 continue
1602             if start_time > duration:
1603                 break
1604             end_time = (duration if next_num == len(chapter_lines)
1605                         else parse_duration(chapter_lines[next_num][1]))
1606             if end_time is None:
1607                 continue
1608             if end_time > duration:
1609                 end_time = duration
1610             if start_time > end_time:
1611                 break
1612             chapter_title = re.sub(
1613                 r'<a[^>]+>[^<]+</a>', '', chapter_line).strip(' \t-')
1614             chapter_title = re.sub(r'\s+', ' ', chapter_title)
1615             chapters.append({
1616                 'start_time': start_time,
1617                 'end_time': end_time,
1618                 'title': chapter_title,
1619             })
1620         return chapters
1621
1622     def _real_extract(self, url):
1623         url, smuggled_data = unsmuggle_url(url, {})
1624
1625         proto = (
1626             'http' if self._downloader.params.get('prefer_insecure', False)
1627             else 'https')
1628
1629         start_time = None
1630         end_time = None
1631         parsed_url = compat_urllib_parse_urlparse(url)
1632         for component in [parsed_url.fragment, parsed_url.query]:
1633             query = compat_parse_qs(component)
1634             if start_time is None and 't' in query:
1635                 start_time = parse_duration(query['t'][0])
1636             if start_time is None and 'start' in query:
1637                 start_time = parse_duration(query['start'][0])
1638             if end_time is None and 'end' in query:
1639                 end_time = parse_duration(query['end'][0])
1640
1641         # Extract original video URL from URL with redirection, like age verification, using next_url parameter
1642         mobj = re.search(self._NEXT_URL_RE, url)
1643         if mobj:
1644             url = proto + '://www.youtube.com/' + compat_urllib_parse_unquote(mobj.group(1)).lstrip('/')
1645         video_id = self.extract_id(url)
1646
1647         # Get video webpage
1648         url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id
1649         video_webpage = self._download_webpage(url, video_id)
1650
1651         # Attempt to extract SWF player URL
1652         mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
1653         if mobj is not None:
1654             player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
1655         else:
1656             player_url = None
1657
1658         dash_mpds = []
1659
1660         def add_dash_mpd(video_info):
1661             dash_mpd = video_info.get('dashmpd')
1662             if dash_mpd and dash_mpd[0] not in dash_mpds:
1663                 dash_mpds.append(dash_mpd[0])
1664
1665         def add_dash_mpd_pr(pl_response):
1666             dash_mpd = url_or_none(try_get(
1667                 pl_response, lambda x: x['streamingData']['dashManifestUrl'],
1668                 compat_str))
1669             if dash_mpd and dash_mpd not in dash_mpds:
1670                 dash_mpds.append(dash_mpd)
1671
1672         is_live = None
1673         view_count = None
1674
1675         def extract_view_count(v_info):
1676             return int_or_none(try_get(v_info, lambda x: x['view_count'][0]))
1677
1678         def extract_token(v_info):
1679             return dict_get(v_info, ('account_playback_token', 'accountPlaybackToken', 'token'))
1680
1681         player_response = {}
1682
1683         # Get video info
1684         embed_webpage = None
1685         if re.search(r'player-age-gate-content">', video_webpage) is not None:
1686             age_gate = True
1687             # We simulate the access to the video from www.youtube.com/v/{video_id}
1688             # this can be viewed without login into Youtube
1689             url = proto + '://www.youtube.com/embed/%s' % video_id
1690             embed_webpage = self._download_webpage(url, video_id, 'Downloading embed webpage')
1691             data = compat_urllib_parse_urlencode({
1692                 'video_id': video_id,
1693                 'eurl': 'https://youtube.googleapis.com/v/' + video_id,
1694                 'sts': self._search_regex(
1695                     r'"sts"\s*:\s*(\d+)', embed_webpage, 'sts', default=''),
1696             })
1697             video_info_url = proto + '://www.youtube.com/get_video_info?' + data
1698             video_info_webpage = self._download_webpage(
1699                 video_info_url, video_id,
1700                 note='Refetching age-gated info webpage',
1701                 errnote='unable to download video info webpage')
1702             video_info = compat_parse_qs(video_info_webpage)
1703             add_dash_mpd(video_info)
1704         else:
1705             age_gate = False
1706             video_info = None
1707             sts = None
1708             # Try looking directly into the video webpage
1709             ytplayer_config = self._get_ytplayer_config(video_id, video_webpage)
1710             if ytplayer_config:
1711                 args = ytplayer_config['args']
1712                 if args.get('url_encoded_fmt_stream_map') or args.get('hlsvp'):
1713                     # Convert to the same format returned by compat_parse_qs
1714                     video_info = dict((k, [v]) for k, v in args.items())
1715                     add_dash_mpd(video_info)
1716                 # Rental video is not rented but preview is available (e.g.
1717                 # https://www.youtube.com/watch?v=yYr8q0y5Jfg,
1718                 # https://github.com/ytdl-org/youtube-dl/issues/10532)
1719                 if not video_info and args.get('ypc_vid'):
1720                     return self.url_result(
1721                         args['ypc_vid'], YoutubeIE.ie_key(), video_id=args['ypc_vid'])
1722                 if args.get('livestream') == '1' or args.get('live_playback') == 1:
1723                     is_live = True
1724                 sts = ytplayer_config.get('sts')
1725                 if not player_response:
1726                     pl_response = str_or_none(args.get('player_response'))
1727                     if pl_response:
1728                         pl_response = self._parse_json(pl_response, video_id, fatal=False)
1729                         if isinstance(pl_response, dict):
1730                             player_response = pl_response
1731             if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):
1732                 add_dash_mpd_pr(player_response)
1733                 # We also try looking in get_video_info since it may contain different dashmpd
1734                 # URL that points to a DASH manifest with possibly different itag set (some itags
1735                 # are missing from DASH manifest pointed by webpage's dashmpd, some - from DASH
1736                 # manifest pointed by get_video_info's dashmpd).
1737                 # The general idea is to take a union of itags of both DASH manifests (for example
1738                 # video with such 'manifest behavior' see https://github.com/ytdl-org/youtube-dl/issues/6093)
1739                 self.report_video_info_webpage_download(video_id)
1740                 for el in ('embedded', 'detailpage', 'vevo', ''):
1741                     query = {
1742                         'video_id': video_id,
1743                         'ps': 'default',
1744                         'eurl': '',
1745                         'gl': 'US',
1746                         'hl': 'en',
1747                     }
1748                     if el:
1749                         query['el'] = el
1750                     if sts:
1751                         query['sts'] = sts
1752                     video_info_webpage = self._download_webpage(
1753                         '%s://www.youtube.com/get_video_info' % proto,
1754                         video_id, note=False,
1755                         errnote='unable to download video info webpage',
1756                         fatal=False, query=query)
1757                     if not video_info_webpage:
1758                         continue
1759                     get_video_info = compat_parse_qs(video_info_webpage)
1760                     if not player_response:
1761                         pl_response = get_video_info.get('player_response', [None])[0]
1762                         if isinstance(pl_response, dict):
1763                             player_response = pl_response
1764                             add_dash_mpd_pr(player_response)
1765                     add_dash_mpd(get_video_info)
1766                     if view_count is None:
1767                         view_count = extract_view_count(get_video_info)
1768                     if not video_info:
1769                         video_info = get_video_info
1770                     get_token = extract_token(get_video_info)
1771                     if get_token:
1772                         # Different get_video_info requests may report different results, e.g.
1773                         # some may report video unavailability, but some may serve it without
1774                         # any complaint (see https://github.com/ytdl-org/youtube-dl/issues/7362,
1775                         # the original webpage as well as el=info and el=embedded get_video_info
1776                         # requests report video unavailability due to geo restriction while
1777                         # el=detailpage succeeds and returns valid data). This is probably
1778                         # due to YouTube measures against IP ranges of hosting providers.
1779                         # Working around by preferring the first succeeded video_info containing
1780                         # the token if no such video_info yet was found.
1781                         token = extract_token(video_info)
1782                         if not token:
1783                             video_info = get_video_info
1784                         break
1785
1786         def extract_unavailable_message():
1787             return self._html_search_regex(
1788                 r'(?s)<h1[^>]+id="unavailable-message"[^>]*>(.+?)</h1>',
1789                 video_webpage, 'unavailable message', default=None)
1790
1791         if not video_info:
1792             unavailable_message = extract_unavailable_message()
1793             if not unavailable_message:
1794                 unavailable_message = 'Unable to extract video data'
1795             raise ExtractorError(
1796                 'YouTube said: %s' % unavailable_message, expected=True, video_id=video_id)
1797
1798         video_details = try_get(
1799             player_response, lambda x: x['videoDetails'], dict) or {}
1800
1801         # title
1802         if 'title' in video_info:
1803             video_title = video_info['title'][0]
1804         elif 'title' in player_response:
1805             video_title = video_details['title']
1806         else:
1807             self._downloader.report_warning('Unable to extract video title')
1808             video_title = '_'
1809
1810         # description
1811         description_original = video_description = get_element_by_id("eow-description", video_webpage)
1812         if video_description:
1813
1814             def replace_url(m):
1815                 redir_url = compat_urlparse.urljoin(url, m.group(1))
1816                 parsed_redir_url = compat_urllib_parse_urlparse(redir_url)
1817                 if re.search(r'^(?:www\.)?(?:youtube(?:-nocookie)?\.com|youtu\.be)$', parsed_redir_url.netloc) and parsed_redir_url.path == '/redirect':
1818                     qs = compat_parse_qs(parsed_redir_url.query)
1819                     q = qs.get('q')
1820                     if q and q[0]:
1821                         return q[0]
1822                 return redir_url
1823
1824             description_original = video_description = re.sub(r'''(?x)
1825                 <a\s+
1826                     (?:[a-zA-Z-]+="[^"]*"\s+)*?
1827                     (?:title|href)="([^"]+)"\s+
1828                     (?:[a-zA-Z-]+="[^"]*"\s+)*?
1829                     class="[^"]*"[^>]*>
1830                 [^<]+\.{3}\s*
1831                 </a>
1832             ''', replace_url, video_description)
1833             video_description = clean_html(video_description)
1834         else:
1835             fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
1836             if fd_mobj:
1837                 video_description = unescapeHTML(fd_mobj.group(1))
1838             else:
1839                 video_description = ''
1840
1841         if not smuggled_data.get('force_singlefeed', False):
1842             if not self._downloader.params.get('noplaylist'):
1843                 multifeed_metadata_list = try_get(
1844                     player_response,
1845                     lambda x: x['multicamera']['playerLegacyMulticameraRenderer']['metadataList'],
1846                     compat_str) or try_get(
1847                     video_info, lambda x: x['multifeed_metadata_list'][0], compat_str)
1848                 if multifeed_metadata_list:
1849                     entries = []
1850                     feed_ids = []
1851                     for feed in multifeed_metadata_list.split(','):
1852                         # Unquote should take place before split on comma (,) since textual
1853                         # fields may contain comma as well (see
1854                         # https://github.com/ytdl-org/youtube-dl/issues/8536)
1855                         feed_data = compat_parse_qs(compat_urllib_parse_unquote_plus(feed))
1856                         entries.append({
1857                             '_type': 'url_transparent',
1858                             'ie_key': 'Youtube',
1859                             'url': smuggle_url(
1860                                 '%s://www.youtube.com/watch?v=%s' % (proto, feed_data['id'][0]),
1861                                 {'force_singlefeed': True}),
1862                             'title': '%s (%s)' % (video_title, feed_data['title'][0]),
1863                         })
1864                         feed_ids.append(feed_data['id'][0])
1865                     self.to_screen(
1866                         'Downloading multifeed video (%s) - add --no-playlist to just download video %s'
1867                         % (', '.join(feed_ids), video_id))
1868                     return self.playlist_result(entries, video_id, video_title, video_description)
1869             else:
1870                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
1871
1872         if view_count is None:
1873             view_count = extract_view_count(video_info)
1874         if view_count is None and video_details:
1875             view_count = int_or_none(video_details.get('viewCount'))
1876
1877         # Check for "rental" videos
1878         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
1879             raise ExtractorError('"rental" videos not supported. See https://github.com/ytdl-org/youtube-dl/issues/359 for more information.', expected=True)
1880
1881         def _extract_filesize(media_url):
1882             return int_or_none(self._search_regex(
1883                 r'\bclen[=/](\d+)', media_url, 'filesize', default=None))
1884
1885         if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1886             self.report_rtmp_download()
1887             formats = [{
1888                 'format_id': '_rtmp',
1889                 'protocol': 'rtmp',
1890                 'url': video_info['conn'][0],
1891                 'player_url': player_url,
1892             }]
1893         elif not is_live and (len(video_info.get('url_encoded_fmt_stream_map', [''])[0]) >= 1 or len(video_info.get('adaptive_fmts', [''])[0]) >= 1):
1894             encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts', [''])[0]
1895             if 'rtmpe%3Dyes' in encoded_url_map:
1896                 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/ytdl-org/youtube-dl/issues/343 for more information.', expected=True)
1897             formats_spec = {}
1898             fmt_list = video_info.get('fmt_list', [''])[0]
1899             if fmt_list:
1900                 for fmt in fmt_list.split(','):
1901                     spec = fmt.split('/')
1902                     if len(spec) > 1:
1903                         width_height = spec[1].split('x')
1904                         if len(width_height) == 2:
1905                             formats_spec[spec[0]] = {
1906                                 'resolution': spec[1],
1907                                 'width': int_or_none(width_height[0]),
1908                                 'height': int_or_none(width_height[1]),
1909                             }
1910             q = qualities(['small', 'medium', 'hd720'])
1911             streaming_formats = try_get(player_response, lambda x: x['streamingData']['formats'], list)
1912             if streaming_formats:
1913                 for fmt in streaming_formats:
1914                     itag = str_or_none(fmt.get('itag'))
1915                     if not itag:
1916                         continue
1917                     quality = fmt.get('quality')
1918                     quality_label = fmt.get('qualityLabel') or quality
1919                     formats_spec[itag] = {
1920                         'asr': int_or_none(fmt.get('audioSampleRate')),
1921                         'filesize': int_or_none(fmt.get('contentLength')),
1922                         'format_note': quality_label,
1923                         'fps': int_or_none(fmt.get('fps')),
1924                         'height': int_or_none(fmt.get('height')),
1925                         'quality': q(quality),
1926                         # bitrate for itag 43 is always 2147483647
1927                         'tbr': float_or_none(fmt.get('averageBitrate') or fmt.get('bitrate'), 1000) if itag != '43' else None,
1928                         'width': int_or_none(fmt.get('width')),
1929                     }
1930             formats = []
1931             for url_data_str in encoded_url_map.split(','):
1932                 url_data = compat_parse_qs(url_data_str)
1933                 if 'itag' not in url_data or 'url' not in url_data or url_data.get('drm_families'):
1934                     continue
1935                 stream_type = int_or_none(try_get(url_data, lambda x: x['stream_type'][0]))
1936                 # Unsupported FORMAT_STREAM_TYPE_OTF
1937                 if stream_type == 3:
1938                     continue
1939                 format_id = url_data['itag'][0]
1940                 url = url_data['url'][0]
1941
1942                 if 's' in url_data or self._downloader.params.get('youtube_include_dash_manifest', True):
1943                     ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
1944                     jsplayer_url_json = self._search_regex(
1945                         ASSETS_RE,
1946                         embed_webpage if age_gate else video_webpage,
1947                         'JS player URL (1)', default=None)
1948                     if not jsplayer_url_json and not age_gate:
1949                         # We need the embed website after all
1950                         if embed_webpage is None:
1951                             embed_url = proto + '://www.youtube.com/embed/%s' % video_id
1952                             embed_webpage = self._download_webpage(
1953                                 embed_url, video_id, 'Downloading embed webpage')
1954                         jsplayer_url_json = self._search_regex(
1955                             ASSETS_RE, embed_webpage, 'JS player URL')
1956
1957                     player_url = json.loads(jsplayer_url_json)
1958                     if player_url is None:
1959                         player_url_json = self._search_regex(
1960                             r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
1961                             video_webpage, 'age gate player URL')
1962                         player_url = json.loads(player_url_json)
1963
1964                 if 'sig' in url_data:
1965                     url += '&signature=' + url_data['sig'][0]
1966                 elif 's' in url_data:
1967                     encrypted_sig = url_data['s'][0]
1968
1969                     if self._downloader.params.get('verbose'):
1970                         if player_url is None:
1971                             player_version = 'unknown'
1972                             player_desc = 'unknown'
1973                         else:
1974                             if player_url.endswith('swf'):
1975                                 player_version = self._search_regex(
1976                                     r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
1977                                     'flash player', fatal=False)
1978                                 player_desc = 'flash player %s' % player_version
1979                             else:
1980                                 player_version = self._search_regex(
1981                                     [r'html5player-([^/]+?)(?:/html5player(?:-new)?)?\.js',
1982                                      r'(?:www|player(?:_ias)?)-([^/]+)(?:/[a-z]{2,3}_[A-Z]{2})?/base\.js'],
1983                                     player_url,
1984                                     'html5 player', fatal=False)
1985                                 player_desc = 'html5 player %s' % player_version
1986
1987                         parts_sizes = self._signature_cache_id(encrypted_sig)
1988                         self.to_screen('{%s} signature length %s, %s' %
1989                                        (format_id, parts_sizes, player_desc))
1990
1991                     signature = self._decrypt_signature(
1992                         encrypted_sig, video_id, player_url, age_gate)
1993                     sp = try_get(url_data, lambda x: x['sp'][0], compat_str) or 'signature'
1994                     url += '&%s=%s' % (sp, signature)
1995                 if 'ratebypass' not in url:
1996                     url += '&ratebypass=yes'
1997
1998                 dct = {
1999                     'format_id': format_id,
2000                     'url': url,
2001                     'player_url': player_url,
2002                 }
2003                 if format_id in self._formats:
2004                     dct.update(self._formats[format_id])
2005                 if format_id in formats_spec:
2006                     dct.update(formats_spec[format_id])
2007
2008                 # Some itags are not included in DASH manifest thus corresponding formats will
2009                 # lack metadata (see https://github.com/ytdl-org/youtube-dl/pull/5993).
2010                 # Trying to extract metadata from url_encoded_fmt_stream_map entry.
2011                 mobj = re.search(r'^(?P<width>\d+)[xX](?P<height>\d+)$', url_data.get('size', [''])[0])
2012                 width, height = (int(mobj.group('width')), int(mobj.group('height'))) if mobj else (None, None)
2013
2014                 filesize = int_or_none(url_data.get(
2015                     'clen', [None])[0]) or _extract_filesize(url)
2016
2017                 quality = url_data.get('quality', [None])[0]
2018
2019                 more_fields = {
2020                     'filesize': filesize,
2021                     'tbr': float_or_none(url_data.get('bitrate', [None])[0], 1000),
2022                     'width': width,
2023                     'height': height,
2024                     'fps': int_or_none(url_data.get('fps', [None])[0]),
2025                     'format_note': url_data.get('quality_label', [None])[0] or quality,
2026                     'quality': q(quality),
2027                 }
2028                 for key, value in more_fields.items():
2029                     if value:
2030                         dct[key] = value
2031                 type_ = url_data.get('type', [None])[0]
2032                 if type_:
2033                     type_split = type_.split(';')
2034                     kind_ext = type_split[0].split('/')
2035                     if len(kind_ext) == 2:
2036                         kind, _ = kind_ext
2037                         dct['ext'] = mimetype2ext(type_split[0])
2038                         if kind in ('audio', 'video'):
2039                             codecs = None
2040                             for mobj in re.finditer(
2041                                     r'(?P<key>[a-zA-Z_-]+)=(?P<quote>["\']?)(?P<val>.+?)(?P=quote)(?:;|$)', type_):
2042                                 if mobj.group('key') == 'codecs':
2043                                     codecs = mobj.group('val')
2044                                     break
2045                             if codecs:
2046                                 dct.update(parse_codecs(codecs))
2047                 if dct.get('acodec') == 'none' or dct.get('vcodec') == 'none':
2048                     dct['downloader_options'] = {
2049                         # Youtube throttles chunks >~10M
2050                         'http_chunk_size': 10485760,
2051                     }
2052                 formats.append(dct)
2053         else:
2054             manifest_url = (
2055                 url_or_none(try_get(
2056                     player_response,
2057                     lambda x: x['streamingData']['hlsManifestUrl'],
2058                     compat_str))
2059                 or url_or_none(try_get(
2060                     video_info, lambda x: x['hlsvp'][0], compat_str)))
2061             if manifest_url:
2062                 formats = []
2063                 m3u8_formats = self._extract_m3u8_formats(
2064                     manifest_url, video_id, 'mp4', fatal=False)
2065                 for a_format in m3u8_formats:
2066                     itag = self._search_regex(
2067                         r'/itag/(\d+)/', a_format['url'], 'itag', default=None)
2068                     if itag:
2069                         a_format['format_id'] = itag
2070                         if itag in self._formats:
2071                             dct = self._formats[itag].copy()
2072                             dct.update(a_format)
2073                             a_format = dct
2074                     a_format['player_url'] = player_url
2075                     # Accept-Encoding header causes failures in live streams on Youtube and Youtube Gaming
2076                     a_format.setdefault('http_headers', {})['Youtubedl-no-compression'] = 'True'
2077                     formats.append(a_format)
2078             else:
2079                 error_message = clean_html(video_info.get('reason', [None])[0])
2080                 if not error_message:
2081                     error_message = extract_unavailable_message()
2082                 if error_message:
2083                     raise ExtractorError(error_message, expected=True)
2084                 raise ExtractorError('no conn, hlsvp, hlsManifestUrl or url_encoded_fmt_stream_map information found in video info')
2085
2086         # uploader
2087         video_uploader = try_get(
2088             video_info, lambda x: x['author'][0],
2089             compat_str) or str_or_none(video_details.get('author'))
2090         if video_uploader:
2091             video_uploader = compat_urllib_parse_unquote_plus(video_uploader)
2092         else:
2093             self._downloader.report_warning('unable to extract uploader name')
2094
2095         # uploader_id
2096         video_uploader_id = None
2097         video_uploader_url = None
2098         mobj = re.search(
2099             r'<link itemprop="url" href="(?P<uploader_url>https?://www\.youtube\.com/(?:user|channel)/(?P<uploader_id>[^"]+))">',
2100             video_webpage)
2101         if mobj is not None:
2102             video_uploader_id = mobj.group('uploader_id')
2103             video_uploader_url = mobj.group('uploader_url')
2104         else:
2105             self._downloader.report_warning('unable to extract uploader nickname')
2106
2107         channel_id = (
2108             str_or_none(video_details.get('channelId'))
2109             or self._html_search_meta(
2110                 'channelId', video_webpage, 'channel id', default=None)
2111             or self._search_regex(
2112                 r'data-channel-external-id=(["\'])(?P<id>(?:(?!\1).)+)\1',
2113                 video_webpage, 'channel id', default=None, group='id'))
2114         channel_url = 'http://www.youtube.com/channel/%s' % channel_id if channel_id else None
2115
2116         # thumbnail image
2117         # We try first to get a high quality image:
2118         m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
2119                             video_webpage, re.DOTALL)
2120         if m_thumb is not None:
2121             video_thumbnail = m_thumb.group(1)
2122         elif 'thumbnail_url' not in video_info:
2123             self._downloader.report_warning('unable to extract video thumbnail')
2124             video_thumbnail = None
2125         else:   # don't panic if we can't find it
2126             video_thumbnail = compat_urllib_parse_unquote_plus(video_info['thumbnail_url'][0])
2127
2128         # upload date
2129         upload_date = self._html_search_meta(
2130             'datePublished', video_webpage, 'upload date', default=None)
2131         if not upload_date:
2132             upload_date = self._search_regex(
2133                 [r'(?s)id="eow-date.*?>(.*?)</span>',
2134                  r'(?:id="watch-uploader-info".*?>.*?|["\']simpleText["\']\s*:\s*["\'])(?:Published|Uploaded|Streamed live|Started) on (.+?)[<"\']'],
2135                 video_webpage, 'upload date', default=None)
2136         upload_date = unified_strdate(upload_date)
2137
2138         video_license = self._html_search_regex(
2139             r'<h4[^>]+class="title"[^>]*>\s*License\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li',
2140             video_webpage, 'license', default=None)
2141
2142         m_music = re.search(
2143             r'''(?x)
2144                 <h4[^>]+class="title"[^>]*>\s*Music\s*</h4>\s*
2145                 <ul[^>]*>\s*
2146                 <li>(?P<title>.+?)
2147                 by (?P<creator>.+?)
2148                 (?:
2149                     \(.+?\)|
2150                     <a[^>]*
2151                         (?:
2152                             \bhref=["\']/red[^>]*>|             # drop possible
2153                             >\s*Listen ad-free with YouTube Red # YouTube Red ad
2154                         )
2155                     .*?
2156                 )?</li
2157             ''',
2158             video_webpage)
2159         if m_music:
2160             video_alt_title = remove_quotes(unescapeHTML(m_music.group('title')))
2161             video_creator = clean_html(m_music.group('creator'))
2162         else:
2163             video_alt_title = video_creator = None
2164
2165         def extract_meta(field):
2166             return self._html_search_regex(
2167                 r'<h4[^>]+class="title"[^>]*>\s*%s\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li>\s*' % field,
2168                 video_webpage, field, default=None)
2169
2170         track = extract_meta('Song')
2171         artist = extract_meta('Artist')
2172         album = extract_meta('Album')
2173
2174         # Youtube Music Auto-generated description
2175         release_date = release_year = None
2176         if video_description:
2177             mobj = re.search(r'(?s)Provided to YouTube by [^\n]+\n+(?P<track>[^·]+)·(?P<artist>[^\n]+)\n+(?P<album>[^\n]+)(?:.+?℗\s*(?P<release_year>\d{4})(?!\d))?(?:.+?Released on\s*:\s*(?P<release_date>\d{4}-\d{2}-\d{2}))?(.+?\nArtist\s*:\s*(?P<clean_artist>[^\n]+))?', video_description)
2178             if mobj:
2179                 if not track:
2180                     track = mobj.group('track').strip()
2181                 if not artist:
2182                     artist = mobj.group('clean_artist') or ', '.join(a.strip() for a in mobj.group('artist').split('·'))
2183                 if not album:
2184                     album = mobj.group('album'.strip())
2185                 release_year = mobj.group('release_year')
2186                 release_date = mobj.group('release_date')
2187                 if release_date:
2188                     release_date = release_date.replace('-', '')
2189                     if not release_year:
2190                         release_year = int(release_date[:4])
2191                 if release_year:
2192                     release_year = int(release_year)
2193
2194         m_episode = re.search(
2195             r'<div[^>]+id="watch7-headline"[^>]*>\s*<span[^>]*>.*?>(?P<series>[^<]+)</a></b>\s*S(?P<season>\d+)\s*•\s*E(?P<episode>\d+)</span>',
2196             video_webpage)
2197         if m_episode:
2198             series = unescapeHTML(m_episode.group('series'))
2199             season_number = int(m_episode.group('season'))
2200             episode_number = int(m_episode.group('episode'))
2201         else:
2202             series = season_number = episode_number = None
2203
2204         m_cat_container = self._search_regex(
2205             r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
2206             video_webpage, 'categories', default=None)
2207         if m_cat_container:
2208             category = self._html_search_regex(
2209                 r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
2210                 default=None)
2211             video_categories = None if category is None else [category]
2212         else:
2213             video_categories = None
2214
2215         video_tags = [
2216             unescapeHTML(m.group('content'))
2217             for m in re.finditer(self._meta_regex('og:video:tag'), video_webpage)]
2218
2219         def _extract_count(count_name):
2220             return str_to_int(self._search_regex(
2221                 r'-%s-button[^>]+><span[^>]+class="yt-uix-button-content"[^>]*>([\d,]+)</span>'
2222                 % re.escape(count_name),
2223                 video_webpage, count_name, default=None))
2224
2225         like_count = _extract_count('like')
2226         dislike_count = _extract_count('dislike')
2227
2228         if view_count is None:
2229             view_count = str_to_int(self._search_regex(
2230                 r'<[^>]+class=["\']watch-view-count[^>]+>\s*([\d,\s]+)', video_webpage,
2231                 'view count', default=None))
2232
2233         average_rating = (
2234             float_or_none(video_details.get('averageRating'))
2235             or try_get(video_info, lambda x: float_or_none(x['avg_rating'][0])))
2236
2237         # subtitles
2238         video_subtitles = self.extract_subtitles(video_id, video_webpage)
2239         automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
2240
2241         video_duration = try_get(
2242             video_info, lambda x: int_or_none(x['length_seconds'][0]))
2243         if not video_duration:
2244             video_duration = int_or_none(video_details.get('lengthSeconds'))
2245         if not video_duration:
2246             video_duration = parse_duration(self._html_search_meta(
2247                 'duration', video_webpage, 'video duration'))
2248
2249         # annotations
2250         video_annotations = None
2251         if self._downloader.params.get('writeannotations', False):
2252             video_annotations = self._extract_annotations(video_id)
2253
2254         chapters = self._extract_chapters(description_original, video_duration)
2255
2256         # Look for the DASH manifest
2257         if self._downloader.params.get('youtube_include_dash_manifest', True):
2258             dash_mpd_fatal = True
2259             for mpd_url in dash_mpds:
2260                 dash_formats = {}
2261                 try:
2262                     def decrypt_sig(mobj):
2263                         s = mobj.group(1)
2264                         dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
2265                         return '/signature/%s' % dec_s
2266
2267                     mpd_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, mpd_url)
2268
2269                     for df in self._extract_mpd_formats(
2270                             mpd_url, video_id, fatal=dash_mpd_fatal,
2271                             formats_dict=self._formats):
2272                         if not df.get('filesize'):
2273                             df['filesize'] = _extract_filesize(df['url'])
2274                         # Do not overwrite DASH format found in some previous DASH manifest
2275                         if df['format_id'] not in dash_formats:
2276                             dash_formats[df['format_id']] = df
2277                         # Additional DASH manifests may end up in HTTP Error 403 therefore
2278                         # allow them to fail without bug report message if we already have
2279                         # some DASH manifest succeeded. This is temporary workaround to reduce
2280                         # burst of bug reports until we figure out the reason and whether it
2281                         # can be fixed at all.
2282                         dash_mpd_fatal = False
2283                 except (ExtractorError, KeyError) as e:
2284                     self.report_warning(
2285                         'Skipping DASH manifest: %r' % e, video_id)
2286                 if dash_formats:
2287                     # Remove the formats we found through non-DASH, they
2288                     # contain less info and it can be wrong, because we use
2289                     # fixed values (for example the resolution). See
2290                     # https://github.com/ytdl-org/youtube-dl/issues/5774 for an
2291                     # example.
2292                     formats = [f for f in formats if f['format_id'] not in dash_formats.keys()]
2293                     formats.extend(dash_formats.values())
2294
2295         # Check for malformed aspect ratio
2296         stretched_m = re.search(
2297             r'<meta\s+property="og:video:tag".*?content="yt:stretch=(?P<w>[0-9]+):(?P<h>[0-9]+)">',
2298             video_webpage)
2299         if stretched_m:
2300             w = float(stretched_m.group('w'))
2301             h = float(stretched_m.group('h'))
2302             # yt:stretch may hold invalid ratio data (e.g. for Q39EVAstoRM ratio is 17:0).
2303             # We will only process correct ratios.
2304             if w > 0 and h > 0:
2305                 ratio = w / h
2306                 for f in formats:
2307                     if f.get('vcodec') != 'none':
2308                         f['stretched_ratio'] = ratio
2309
2310         if not formats:
2311             token = extract_token(video_info)
2312             if not token:
2313                 if 'reason' in video_info:
2314                     if 'The uploader has not made this video available in your country.' in video_info['reason']:
2315                         regions_allowed = self._html_search_meta(
2316                             'regionsAllowed', video_webpage, default=None)
2317                         countries = regions_allowed.split(',') if regions_allowed else None
2318                         self.raise_geo_restricted(
2319                             msg=video_info['reason'][0], countries=countries)
2320                     reason = video_info['reason'][0]
2321                     if 'Invalid parameters' in reason:
2322                         unavailable_message = extract_unavailable_message()
2323                         if unavailable_message:
2324                             reason = unavailable_message
2325                     raise ExtractorError(
2326                         'YouTube said: %s' % reason,
2327                         expected=True, video_id=video_id)
2328                 else:
2329                     raise ExtractorError(
2330                         '"token" parameter not in video info for unknown reason',
2331                         video_id=video_id)
2332
2333         if not formats and (video_info.get('license_info') or try_get(player_response, lambda x: x['streamingData']['licenseInfos'])):
2334             raise ExtractorError('This video is DRM protected.', expected=True)
2335
2336         self._sort_formats(formats)
2337
2338         self.mark_watched(video_id, video_info, player_response)
2339
2340         return {
2341             'id': video_id,
2342             'uploader': video_uploader,
2343             'uploader_id': video_uploader_id,
2344             'uploader_url': video_uploader_url,
2345             'channel_id': channel_id,
2346             'channel_url': channel_url,
2347             'upload_date': upload_date,
2348             'license': video_license,
2349             'creator': video_creator or artist,
2350             'title': video_title,
2351             'alt_title': video_alt_title or track,
2352             'thumbnail': video_thumbnail,
2353             'description': video_description,
2354             'categories': video_categories,
2355             'tags': video_tags,
2356             'subtitles': video_subtitles,
2357             'automatic_captions': automatic_captions,
2358             'duration': video_duration,
2359             'age_limit': 18 if age_gate else 0,
2360             'annotations': video_annotations,
2361             'chapters': chapters,
2362             'webpage_url': proto + '://www.youtube.com/watch?v=%s' % video_id,
2363             'view_count': view_count,
2364             'like_count': like_count,
2365             'dislike_count': dislike_count,
2366             'average_rating': average_rating,
2367             'formats': formats,
2368             'is_live': is_live,
2369             'start_time': start_time,
2370             'end_time': end_time,
2371             'series': series,
2372             'season_number': season_number,
2373             'episode_number': episode_number,
2374             'track': track,
2375             'artist': artist,
2376             'album': album,
2377             'release_date': release_date,
2378             'release_year': release_year,
2379         }
2380
2381
2382 class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
2383     IE_DESC = 'YouTube.com playlists'
2384     _VALID_URL = r"""(?x)(?:
2385                         (?:https?://)?
2386                         (?:\w+\.)?
2387                         (?:
2388                             (?:
2389                                 youtube\.com|
2390                                 invidio\.us
2391                             )
2392                             /
2393                             (?:
2394                                (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/(?:videoseries|[0-9A-Za-z_-]{11}))
2395                                \? (?:.*?[&;])*? (?:p|a|list)=
2396                             |  p/
2397                             )|
2398                             youtu\.be/[0-9A-Za-z_-]{11}\?.*?\blist=
2399                         )
2400                         (
2401                             (?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)?[0-9A-Za-z-_]{10,}
2402                             # Top tracks, they can also include dots
2403                             |(?:MC)[\w\.]*
2404                         )
2405                         .*
2406                      |
2407                         (%(playlist_id)s)
2408                      )""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
2409     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
2410     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)(?:[^>]+>(?P<title>[^<]+))?'
2411     IE_NAME = 'youtube:playlist'
2412     _TESTS = [{
2413         'url': 'https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
2414         'info_dict': {
2415             'title': 'ytdl test PL',
2416             'id': 'PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
2417         },
2418         'playlist_count': 3,
2419     }, {
2420         'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
2421         'info_dict': {
2422             'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
2423             'title': 'YDL_Empty_List',
2424         },
2425         'playlist_count': 0,
2426         'skip': 'This playlist is private',
2427     }, {
2428         'note': 'Playlist with deleted videos (#651). As a bonus, the video #51 is also twice in this list.',
2429         'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
2430         'info_dict': {
2431             'title': '29C3: Not my department',
2432             'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
2433         },
2434         'playlist_count': 95,
2435     }, {
2436         'note': 'issue #673',
2437         'url': 'PLBB231211A4F62143',
2438         'info_dict': {
2439             'title': '[OLD]Team Fortress 2 (Class-based LP)',
2440             'id': 'PLBB231211A4F62143',
2441         },
2442         'playlist_mincount': 26,
2443     }, {
2444         'note': 'Large playlist',
2445         'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
2446         'info_dict': {
2447             'title': 'Uploads from Cauchemar',
2448             'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q',
2449         },
2450         'playlist_mincount': 799,
2451     }, {
2452         'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
2453         'info_dict': {
2454             'title': 'YDL_safe_search',
2455             'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
2456         },
2457         'playlist_count': 2,
2458         'skip': 'This playlist is private',
2459     }, {
2460         'note': 'embedded',
2461         'url': 'https://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
2462         'playlist_count': 4,
2463         'info_dict': {
2464             'title': 'JODA15',
2465             'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
2466         }
2467     }, {
2468         'url': 'http://www.youtube.com/embed/_xDOZElKyNU?list=PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
2469         'playlist_mincount': 485,
2470         'info_dict': {
2471             'title': '2017 華語最新單曲 (2/24更新)',
2472             'id': 'PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
2473         }
2474     }, {
2475         'note': 'Embedded SWF player',
2476         'url': 'https://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',
2477         'playlist_count': 4,
2478         'info_dict': {
2479             'title': 'JODA7',
2480             'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ',
2481         }
2482     }, {
2483         'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
2484         'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
2485         'info_dict': {
2486             'title': 'Uploads from Interstellar Movie',
2487             'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
2488         },
2489         'playlist_mincount': 21,
2490     }, {
2491         # Playlist URL that does not actually serve a playlist
2492         'url': 'https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4',
2493         'info_dict': {
2494             'id': 'FqZTN594JQw',
2495             'ext': 'webm',
2496             'title': "Smiley's People 01 detective, Adventure Series, Action",
2497             'uploader': 'STREEM',
2498             'uploader_id': 'UCyPhqAZgwYWZfxElWVbVJng',
2499             'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCyPhqAZgwYWZfxElWVbVJng',
2500             'upload_date': '20150526',
2501             'license': 'Standard YouTube License',
2502             'description': 'md5:507cdcb5a49ac0da37a920ece610be80',
2503             'categories': ['People & Blogs'],
2504             'tags': list,
2505             'view_count': int,
2506             'like_count': int,
2507             'dislike_count': int,
2508         },
2509         'params': {
2510             'skip_download': True,
2511         },
2512         'add_ie': [YoutubeIE.ie_key()],
2513     }, {
2514         'url': 'https://youtu.be/yeWKywCrFtk?list=PL2qgrgXsNUG5ig9cat4ohreBjYLAPC0J5',
2515         'info_dict': {
2516             'id': 'yeWKywCrFtk',
2517             'ext': 'mp4',
2518             'title': 'Small Scale Baler and Braiding Rugs',
2519             'uploader': 'Backus-Page House Museum',
2520             'uploader_id': 'backuspagemuseum',
2521             'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/backuspagemuseum',
2522             'upload_date': '20161008',
2523             'license': 'Standard YouTube License',
2524             'description': 'md5:800c0c78d5eb128500bffd4f0b4f2e8a',
2525             'categories': ['Nonprofits & Activism'],
2526             'tags': list,
2527             'like_count': int,
2528             'dislike_count': int,
2529         },
2530         'params': {
2531             'noplaylist': True,
2532             'skip_download': True,
2533         },
2534     }, {
2535         'url': 'https://youtu.be/uWyaPkt-VOI?list=PL9D9FC436B881BA21',
2536         'only_matching': True,
2537     }, {
2538         'url': 'TLGGrESM50VT6acwMjAyMjAxNw',
2539         'only_matching': True,
2540     }, {
2541         # music album playlist
2542         'url': 'OLAK5uy_m4xAFdmMC5rX3Ji3g93pQe3hqLZw_9LhM',
2543         'only_matching': True,
2544     }, {
2545         'url': 'https://invidio.us/playlist?list=PLDIoUOhQQPlXr63I_vwF9GD8sAKh77dWU',
2546         'only_matching': True,
2547     }]
2548
2549     def _real_initialize(self):
2550         self._login()
2551
2552     def _extract_mix(self, playlist_id):
2553         # The mixes are generated from a single video
2554         # the id of the playlist is just 'RD' + video_id
2555         ids = []
2556         last_id = playlist_id[-11:]
2557         for n in itertools.count(1):
2558             url = 'https://youtube.com/watch?v=%s&list=%s' % (last_id, playlist_id)
2559             webpage = self._download_webpage(
2560                 url, playlist_id, 'Downloading page {0} of Youtube mix'.format(n))
2561             new_ids = orderedSet(re.findall(
2562                 r'''(?xs)data-video-username=".*?".*?
2563                            href="/watch\?v=([0-9A-Za-z_-]{11})&amp;[^"]*?list=%s''' % re.escape(playlist_id),
2564                 webpage))
2565             # Fetch new pages until all the videos are repeated, it seems that
2566             # there are always 51 unique videos.
2567             new_ids = [_id for _id in new_ids if _id not in ids]
2568             if not new_ids:
2569                 break
2570             ids.extend(new_ids)
2571             last_id = ids[-1]
2572
2573         url_results = self._ids_to_results(ids)
2574
2575         search_title = lambda class_name: get_element_by_attribute('class', class_name, webpage)
2576         title_span = (
2577             search_title('playlist-title')
2578             or search_title('title long-title')
2579             or search_title('title'))
2580         title = clean_html(title_span)
2581
2582         return self.playlist_result(url_results, playlist_id, title)
2583
2584     def _extract_playlist(self, playlist_id):
2585         url = self._TEMPLATE_URL % playlist_id
2586         page = self._download_webpage(url, playlist_id)
2587
2588         # the yt-alert-message now has tabindex attribute (see https://github.com/ytdl-org/youtube-dl/issues/11604)
2589         for match in re.findall(r'<div class="yt-alert-message"[^>]*>([^<]+)</div>', page):
2590             match = match.strip()
2591             # Check if the playlist exists or is private
2592             mobj = re.match(r'[^<]*(?:The|This) playlist (?P<reason>does not exist|is private)[^<]*', match)
2593             if mobj:
2594                 reason = mobj.group('reason')
2595                 message = 'This playlist %s' % reason
2596                 if 'private' in reason:
2597                     message += ', use --username or --netrc to access it'
2598                 message += '.'
2599                 raise ExtractorError(message, expected=True)
2600             elif re.match(r'[^<]*Invalid parameters[^<]*', match):
2601                 raise ExtractorError(
2602                     'Invalid parameters. Maybe URL is incorrect.',
2603                     expected=True)
2604             elif re.match(r'[^<]*Choose your language[^<]*', match):
2605                 continue
2606             else:
2607                 self.report_warning('Youtube gives an alert message: ' + match)
2608
2609         playlist_title = self._html_search_regex(
2610             r'(?s)<h1 class="pl-header-title[^"]*"[^>]*>\s*(.*?)\s*</h1>',
2611             page, 'title', default=None)
2612
2613         _UPLOADER_BASE = r'class=["\']pl-header-details[^>]+>\s*<li>\s*<a[^>]+\bhref='
2614         uploader = self._search_regex(
2615             r'%s["\']/(?:user|channel)/[^>]+>([^<]+)' % _UPLOADER_BASE,
2616             page, 'uploader', default=None)
2617         mobj = re.search(
2618             r'%s(["\'])(?P<path>/(?:user|channel)/(?P<uploader_id>.+?))\1' % _UPLOADER_BASE,
2619             page)
2620         if mobj:
2621             uploader_id = mobj.group('uploader_id')
2622             uploader_url = compat_urlparse.urljoin(url, mobj.group('path'))
2623         else:
2624             uploader_id = uploader_url = None
2625
2626         has_videos = True
2627
2628         if not playlist_title:
2629             try:
2630                 # Some playlist URLs don't actually serve a playlist (e.g.
2631                 # https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4)
2632                 next(self._entries(page, playlist_id))
2633             except StopIteration:
2634                 has_videos = False
2635
2636         playlist = self.playlist_result(
2637             self._entries(page, playlist_id), playlist_id, playlist_title)
2638         playlist.update({
2639             'uploader': uploader,
2640             'uploader_id': uploader_id,
2641             'uploader_url': uploader_url,
2642         })
2643
2644         return has_videos, playlist
2645
2646     def _check_download_just_video(self, url, playlist_id):
2647         # Check if it's a video-specific URL
2648         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
2649         video_id = query_dict.get('v', [None])[0] or self._search_regex(
2650             r'(?:(?:^|//)youtu\.be/|youtube\.com/embed/(?!videoseries))([0-9A-Za-z_-]{11})', url,
2651             'video id', default=None)
2652         if video_id:
2653             if self._downloader.params.get('noplaylist'):
2654                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
2655                 return video_id, self.url_result(video_id, 'Youtube', video_id=video_id)
2656             else:
2657                 self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
2658                 return video_id, None
2659         return None, None
2660
2661     def _real_extract(self, url):
2662         # Extract playlist id
2663         mobj = re.match(self._VALID_URL, url)
2664         if mobj is None:
2665             raise ExtractorError('Invalid URL: %s' % url)
2666         playlist_id = mobj.group(1) or mobj.group(2)
2667
2668         video_id, video = self._check_download_just_video(url, playlist_id)
2669         if video:
2670             return video
2671
2672         if playlist_id.startswith(('RD', 'UL', 'PU')):
2673             # Mixes require a custom extraction process
2674             return self._extract_mix(playlist_id)
2675
2676         has_videos, playlist = self._extract_playlist(playlist_id)
2677         if has_videos or not video_id:
2678             return playlist
2679
2680         # Some playlist URLs don't actually serve a playlist (see
2681         # https://github.com/ytdl-org/youtube-dl/issues/10537).
2682         # Fallback to plain video extraction if there is a video id
2683         # along with playlist id.
2684         return self.url_result(video_id, 'Youtube', video_id=video_id)
2685
2686
2687 class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
2688     IE_DESC = 'YouTube.com channels'
2689     _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com|(?:www\.)?invidio\.us)/channel/(?P<id>[0-9A-Za-z_-]+)'
2690     _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos'
2691     _VIDEO_RE = r'(?:title="(?P<title>[^"]+)"[^>]+)?href="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?'
2692     IE_NAME = 'youtube:channel'
2693     _TESTS = [{
2694         'note': 'paginated channel',
2695         'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
2696         'playlist_mincount': 91,
2697         'info_dict': {
2698             'id': 'UUKfVa3S1e4PHvxWcwyMMg8w',
2699             'title': 'Uploads from lex will',
2700         }
2701     }, {
2702         'note': 'Age restricted channel',
2703         # from https://www.youtube.com/user/DeusExOfficial
2704         'url': 'https://www.youtube.com/channel/UCs0ifCMCm1icqRbqhUINa0w',
2705         'playlist_mincount': 64,
2706         'info_dict': {
2707             'id': 'UUs0ifCMCm1icqRbqhUINa0w',
2708             'title': 'Uploads from Deus Ex',
2709         },
2710     }, {
2711         'url': 'https://invidio.us/channel/UC23qupoDRn9YOAVzeoxjOQA',
2712         'only_matching': True,
2713     }]
2714
2715     @classmethod
2716     def suitable(cls, url):
2717         return (False if YoutubePlaylistsIE.suitable(url) or YoutubeLiveIE.suitable(url)
2718                 else super(YoutubeChannelIE, cls).suitable(url))
2719
2720     def _build_template_url(self, url, channel_id):
2721         return self._TEMPLATE_URL % channel_id
2722
2723     def _real_extract(self, url):
2724         channel_id = self._match_id(url)
2725
2726         url = self._build_template_url(url, channel_id)
2727
2728         # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778)
2729         # Workaround by extracting as a playlist if managed to obtain channel playlist URL
2730         # otherwise fallback on channel by page extraction
2731         channel_page = self._download_webpage(
2732             url + '?view=57', channel_id,
2733             'Downloading channel page', fatal=False)
2734         if channel_page is False:
2735             channel_playlist_id = False
2736         else:
2737             channel_playlist_id = self._html_search_meta(
2738                 'channelId', channel_page, 'channel id', default=None)
2739             if not channel_playlist_id:
2740                 channel_url = self._html_search_meta(
2741                     ('al:ios:url', 'twitter:app:url:iphone', 'twitter:app:url:ipad'),
2742                     channel_page, 'channel url', default=None)
2743                 if channel_url:
2744                     channel_playlist_id = self._search_regex(
2745                         r'vnd\.youtube://user/([0-9A-Za-z_-]+)',
2746                         channel_url, 'channel id', default=None)
2747         if channel_playlist_id and channel_playlist_id.startswith('UC'):
2748             playlist_id = 'UU' + channel_playlist_id[2:]
2749             return self.url_result(
2750                 compat_urlparse.urljoin(url, '/playlist?list=%s' % playlist_id), 'YoutubePlaylist')
2751
2752         channel_page = self._download_webpage(url, channel_id, 'Downloading page #1')
2753         autogenerated = re.search(r'''(?x)
2754                 class="[^"]*?(?:
2755                     channel-header-autogenerated-label|
2756                     yt-channel-title-autogenerated
2757                 )[^"]*"''', channel_page) is not None
2758
2759         if autogenerated:
2760             # The videos are contained in a single page
2761             # the ajax pages can't be used, they are empty
2762             entries = [
2763                 self.url_result(
2764                     video_id, 'Youtube', video_id=video_id,
2765                     video_title=video_title)
2766                 for video_id, video_title in self.extract_videos_from_page(channel_page)]
2767             return self.playlist_result(entries, channel_id)
2768
2769         try:
2770             next(self._entries(channel_page, channel_id))
2771         except StopIteration:
2772             alert_message = self._html_search_regex(
2773                 r'(?s)<div[^>]+class=(["\']).*?\byt-alert-message\b.*?\1[^>]*>(?P<alert>[^<]+)</div>',
2774                 channel_page, 'alert', default=None, group='alert')
2775             if alert_message:
2776                 raise ExtractorError('Youtube said: %s' % alert_message, expected=True)
2777
2778         return self.playlist_result(self._entries(channel_page, channel_id), channel_id)
2779
2780
2781 class YoutubeUserIE(YoutubeChannelIE):
2782     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
2783     _VALID_URL = r'(?:(?:https?://(?:\w+\.)?youtube\.com/(?:(?P<user>user|c)/)?(?!(?:attribution_link|watch|results|shared)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
2784     _TEMPLATE_URL = 'https://www.youtube.com/%s/%s/videos'
2785     IE_NAME = 'youtube:user'
2786
2787     _TESTS = [{
2788         'url': 'https://www.youtube.com/user/TheLinuxFoundation',
2789         'playlist_mincount': 320,
2790         'info_dict': {
2791             'id': 'UUfX55Sx5hEFjoC3cNs6mCUQ',
2792             'title': 'Uploads from The Linux Foundation',
2793         }
2794     }, {
2795         # Only available via https://www.youtube.com/c/12minuteathlete/videos
2796         # but not https://www.youtube.com/user/12minuteathlete/videos
2797         'url': 'https://www.youtube.com/c/12minuteathlete/videos',
2798         'playlist_mincount': 249,
2799         'info_dict': {
2800             'id': 'UUVjM-zV6_opMDx7WYxnjZiQ',
2801             'title': 'Uploads from 12 Minute Athlete',
2802         }
2803     }, {
2804         'url': 'ytuser:phihag',
2805         'only_matching': True,
2806     }, {
2807         'url': 'https://www.youtube.com/c/gametrailers',
2808         'only_matching': True,
2809     }, {
2810         'url': 'https://www.youtube.com/gametrailers',
2811         'only_matching': True,
2812     }, {
2813         # This channel is not available, geo restricted to JP
2814         'url': 'https://www.youtube.com/user/kananishinoSMEJ/videos',
2815         'only_matching': True,
2816     }]
2817
2818     @classmethod
2819     def suitable(cls, url):
2820         # Don't return True if the url can be extracted with other youtube
2821         # extractor, the regex would is too permissive and it would match.
2822         other_yt_ies = iter(klass for (name, klass) in globals().items() if name.startswith('Youtube') and name.endswith('IE') and klass is not cls)
2823         if any(ie.suitable(url) for ie in other_yt_ies):
2824             return False
2825         else:
2826             return super(YoutubeUserIE, cls).suitable(url)
2827
2828     def _build_template_url(self, url, channel_id):
2829         mobj = re.match(self._VALID_URL, url)
2830         return self._TEMPLATE_URL % (mobj.group('user') or 'user', mobj.group('id'))
2831
2832
2833 class YoutubeLiveIE(YoutubeBaseInfoExtractor):
2834     IE_DESC = 'YouTube.com live streams'
2835     _VALID_URL = r'(?P<base_url>https?://(?:\w+\.)?youtube\.com/(?:(?:user|channel|c)/)?(?P<id>[^/]+))/live'
2836     IE_NAME = 'youtube:live'
2837
2838     _TESTS = [{
2839         'url': 'https://www.youtube.com/user/TheYoungTurks/live',
2840         'info_dict': {
2841             'id': 'a48o2S1cPoo',
2842             'ext': 'mp4',
2843             'title': 'The Young Turks - Live Main Show',
2844             'uploader': 'The Young Turks',
2845             'uploader_id': 'TheYoungTurks',
2846             'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheYoungTurks',
2847             'upload_date': '20150715',
2848             'license': 'Standard YouTube License',
2849             'description': 'md5:438179573adcdff3c97ebb1ee632b891',
2850             'categories': ['News & Politics'],
2851             'tags': ['Cenk Uygur (TV Program Creator)', 'The Young Turks (Award-Winning Work)', 'Talk Show (TV Genre)'],
2852             'like_count': int,
2853             'dislike_count': int,
2854         },
2855         'params': {
2856             'skip_download': True,
2857         },
2858     }, {
2859         'url': 'https://www.youtube.com/channel/UC1yBKRuGpC1tSM73A0ZjYjQ/live',
2860         'only_matching': True,
2861     }, {
2862         'url': 'https://www.youtube.com/c/CommanderVideoHq/live',
2863         'only_matching': True,
2864     }, {
2865         'url': 'https://www.youtube.com/TheYoungTurks/live',
2866         'only_matching': True,
2867     }]
2868
2869     def _real_extract(self, url):
2870         mobj = re.match(self._VALID_URL, url)
2871         channel_id = mobj.group('id')
2872         base_url = mobj.group('base_url')
2873         webpage = self._download_webpage(url, channel_id, fatal=False)
2874         if webpage:
2875             page_type = self._og_search_property(
2876                 'type', webpage, 'page type', default='')
2877             video_id = self._html_search_meta(
2878                 'videoId', webpage, 'video id', default=None)
2879             if page_type.startswith('video') and video_id and re.match(
2880                     r'^[0-9A-Za-z_-]{11}$', video_id):
2881                 return self.url_result(video_id, YoutubeIE.ie_key())
2882         return self.url_result(base_url)
2883
2884
2885 class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor):
2886     IE_DESC = 'YouTube.com user/channel playlists'
2887     _VALID_URL = r'https?://(?:\w+\.)?youtube\.com/(?:user|channel)/(?P<id>[^/]+)/playlists'
2888     IE_NAME = 'youtube:playlists'
2889
2890     _TESTS = [{
2891         'url': 'https://www.youtube.com/user/ThirstForScience/playlists',
2892         'playlist_mincount': 4,
2893         'info_dict': {
2894             'id': 'ThirstForScience',
2895             'title': 'Thirst for Science',
2896         },
2897     }, {
2898         # with "Load more" button
2899         'url': 'https://www.youtube.com/user/igorkle1/playlists?view=1&sort=dd',
2900         'playlist_mincount': 70,
2901         'info_dict': {
2902             'id': 'igorkle1',
2903             'title': 'Игорь Клейнер',
2904         },
2905     }, {
2906         'url': 'https://www.youtube.com/channel/UCiU1dHvZObB2iP6xkJ__Icw/playlists',
2907         'playlist_mincount': 17,
2908         'info_dict': {
2909             'id': 'UCiU1dHvZObB2iP6xkJ__Icw',
2910             'title': 'Chem Player',
2911         },
2912     }]
2913
2914
2915 class YoutubeSearchBaseInfoExtractor(YoutubePlaylistBaseInfoExtractor):
2916     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})(?:[^"]*"[^>]+\btitle="(?P<title>[^"]+))?'
2917
2918
2919 class YoutubeSearchIE(SearchInfoExtractor, YoutubeSearchBaseInfoExtractor):
2920     IE_DESC = 'YouTube.com searches'
2921     # there doesn't appear to be a real limit, for example if you search for
2922     # 'python' you get more than 8.000.000 results
2923     _MAX_RESULTS = float('inf')
2924     IE_NAME = 'youtube:search'
2925     _SEARCH_KEY = 'ytsearch'
2926     _EXTRA_QUERY_ARGS = {}
2927     _TESTS = []
2928
2929     def _get_n_results(self, query, n):
2930         """Get a specified number of results for a query"""
2931
2932         videos = []
2933         limit = n
2934
2935         url_query = {
2936             'search_query': query.encode('utf-8'),
2937         }
2938         url_query.update(self._EXTRA_QUERY_ARGS)
2939         result_url = 'https://www.youtube.com/results?' + compat_urllib_parse_urlencode(url_query)
2940
2941         for pagenum in itertools.count(1):
2942             data = self._download_json(
2943                 result_url, video_id='query "%s"' % query,
2944                 note='Downloading page %s' % pagenum,
2945                 errnote='Unable to download API page',
2946                 query={'spf': 'navigate'})
2947             html_content = data[1]['body']['content']
2948
2949             if 'class="search-message' in html_content:
2950                 raise ExtractorError(
2951                     '[youtube] No video results', expected=True)
2952
2953             new_videos = list(self._process_page(html_content))
2954             videos += new_videos
2955             if not new_videos or len(videos) > limit:
2956                 break
2957             next_link = self._html_search_regex(
2958                 r'href="(/results\?[^"]*\bsp=[^"]+)"[^>]*>\s*<span[^>]+class="[^"]*\byt-uix-button-content\b[^"]*"[^>]*>Next',
2959                 html_content, 'next link', default=None)
2960             if next_link is None:
2961                 break
2962             result_url = compat_urlparse.urljoin('https://www.youtube.com/', next_link)
2963
2964         if len(videos) > n:
2965             videos = videos[:n]
2966         return self.playlist_result(videos, query)
2967
2968
2969 class YoutubeSearchDateIE(YoutubeSearchIE):
2970     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
2971     _SEARCH_KEY = 'ytsearchdate'
2972     IE_DESC = 'YouTube.com searches, newest videos first'
2973     _EXTRA_QUERY_ARGS = {'search_sort': 'video_date_uploaded'}
2974
2975
2976 class YoutubeSearchURLIE(YoutubeSearchBaseInfoExtractor):
2977     IE_DESC = 'YouTube.com search URLs'
2978     IE_NAME = 'youtube:search_url'
2979     _VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?(?:search_query|q)=(?P<query>[^&]+)(?:[&]|$)'
2980     _TESTS = [{
2981         'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video',
2982         'playlist_mincount': 5,
2983         'info_dict': {
2984             'title': 'youtube-dl test video',
2985         }
2986     }, {
2987         'url': 'https://www.youtube.com/results?q=test&sp=EgQIBBgB',
2988         'only_matching': True,
2989     }]
2990
2991     def _real_extract(self, url):
2992         mobj = re.match(self._VALID_URL, url)
2993         query = compat_urllib_parse_unquote_plus(mobj.group('query'))
2994         webpage = self._download_webpage(url, query)
2995         return self.playlist_result(self._process_page(webpage), playlist_title=query)
2996
2997
2998 class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor):
2999     IE_DESC = 'YouTube.com (multi-season) shows'
3000     _VALID_URL = r'https?://(?:www\.)?youtube\.com/show/(?P<id>[^?#]*)'
3001     IE_NAME = 'youtube:show'
3002     _TESTS = [{
3003         'url': 'https://www.youtube.com/show/airdisasters',
3004         'playlist_mincount': 5,
3005         'info_dict': {
3006             'id': 'airdisasters',
3007             'title': 'Air Disasters',
3008         }
3009     }]
3010
3011     def _real_extract(self, url):
3012         playlist_id = self._match_id(url)
3013         return super(YoutubeShowIE, self)._real_extract(
3014             'https://www.youtube.com/show/%s/playlists' % playlist_id)
3015
3016
3017 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
3018     """
3019     Base class for feed extractors
3020     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
3021     """
3022     _LOGIN_REQUIRED = True
3023
3024     @property
3025     def IE_NAME(self):
3026         return 'youtube:%s' % self._FEED_NAME
3027
3028     def _real_initialize(self):
3029         self._login()
3030
3031     def _entries(self, page):
3032         # The extraction process is the same as for playlists, but the regex
3033         # for the video ids doesn't contain an index
3034         ids = []
3035         more_widget_html = content_html = page
3036         for page_num in itertools.count(1):
3037             matches = re.findall(r'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html)
3038
3039             # 'recommended' feed has infinite 'load more' and each new portion spins
3040             # the same videos in (sometimes) slightly different order, so we'll check
3041             # for unicity and break when portion has no new videos
3042             new_ids = list(filter(lambda video_id: video_id not in ids, orderedSet(matches)))
3043             if not new_ids:
3044                 break
3045
3046             ids.extend(new_ids)
3047
3048             for entry in self._ids_to_results(new_ids):
3049                 yield entry
3050
3051             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
3052             if not mobj:
3053                 break
3054
3055             more = self._download_json(
3056                 'https://youtube.com/%s' % mobj.group('more'), self._PLAYLIST_TITLE,
3057                 'Downloading page #%s' % page_num,
3058                 transform_source=uppercase_escape)
3059             content_html = more['content_html']
3060             more_widget_html = more['load_more_widget_html']
3061
3062     def _real_extract(self, url):
3063         page = self._download_webpage(
3064             'https://www.youtube.com/feed/%s' % self._FEED_NAME,
3065             self._PLAYLIST_TITLE)
3066         return self.playlist_result(
3067             self._entries(page), playlist_title=self._PLAYLIST_TITLE)
3068
3069
3070 class YoutubeWatchLaterIE(YoutubePlaylistIE):
3071     IE_NAME = 'youtube:watchlater'
3072     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
3073     _VALID_URL = r'https?://(?:www\.)?youtube\.com/(?:feed/watch_later|(?:playlist|watch)\?(?:.+&)?list=WL)|:ytwatchlater'
3074
3075     _TESTS = [{
3076         'url': 'https://www.youtube.com/playlist?list=WL',
3077         'only_matching': True,
3078     }, {
3079         'url': 'https://www.youtube.com/watch?v=bCNU9TrbiRk&index=1&list=WL',
3080         'only_matching': True,
3081     }]
3082
3083     def _real_extract(self, url):
3084         _, video = self._check_download_just_video(url, 'WL')
3085         if video:
3086             return video
3087         _, playlist = self._extract_playlist('WL')
3088         return playlist
3089
3090
3091 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
3092     IE_NAME = 'youtube:favorites'
3093     IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'
3094     _VALID_URL = r'https?://(?:www\.)?youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
3095     _LOGIN_REQUIRED = True
3096
3097     def _real_extract(self, url):
3098         webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
3099         playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, 'favourites playlist id')
3100         return self.url_result(playlist_id, 'YoutubePlaylist')
3101
3102
3103 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
3104     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
3105     _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/recommended|:ytrec(?:ommended)?'
3106     _FEED_NAME = 'recommended'
3107     _PLAYLIST_TITLE = 'Youtube Recommended videos'
3108
3109
3110 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
3111     IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'
3112     _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
3113     _FEED_NAME = 'subscriptions'
3114     _PLAYLIST_TITLE = 'Youtube Subscriptions'
3115
3116
3117 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
3118     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
3119     _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/history|:ythistory'
3120     _FEED_NAME = 'history'
3121     _PLAYLIST_TITLE = 'Youtube History'
3122
3123
3124 class YoutubeTruncatedURLIE(InfoExtractor):
3125     IE_NAME = 'youtube:truncated_url'
3126     IE_DESC = False  # Do not list
3127     _VALID_URL = r'''(?x)
3128         (?:https?://)?
3129         (?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/
3130         (?:watch\?(?:
3131             feature=[a-z_]+|
3132             annotation_id=annotation_[^&]+|
3133             x-yt-cl=[0-9]+|
3134             hl=[^&]*|
3135             t=[0-9]+
3136         )?
3137         |
3138             attribution_link\?a=[^&]+
3139         )
3140         $
3141     '''
3142
3143     _TESTS = [{
3144         'url': 'https://www.youtube.com/watch?annotation_id=annotation_3951667041',
3145         'only_matching': True,
3146     }, {
3147         'url': 'https://www.youtube.com/watch?',
3148         'only_matching': True,
3149     }, {
3150         'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',
3151         'only_matching': True,
3152     }, {
3153         'url': 'https://www.youtube.com/watch?feature=foo',
3154         'only_matching': True,
3155     }, {
3156         'url': 'https://www.youtube.com/watch?hl=en-GB',
3157         'only_matching': True,
3158     }, {
3159         'url': 'https://www.youtube.com/watch?t=2372',
3160         'only_matching': True,
3161     }]
3162
3163     def _real_extract(self, url):
3164         raise ExtractorError(
3165             'Did you forget to quote the URL? Remember that & is a meta '
3166             'character in most shells, so you want to put the URL in quotes, '
3167             'like  youtube-dl '
3168             '"https://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
3169             ' or simply  youtube-dl BaW_jenozKc  .',
3170             expected=True)
3171
3172
3173 class YoutubeTruncatedIDIE(InfoExtractor):
3174     IE_NAME = 'youtube:truncated_id'
3175     IE_DESC = False  # Do not list
3176     _VALID_URL = r'https?://(?:www\.)?youtube\.com/watch\?v=(?P<id>[0-9A-Za-z_-]{1,10})$'
3177
3178     _TESTS = [{
3179         'url': 'https://www.youtube.com/watch?v=N_708QY7Ob',
3180         'only_matching': True,
3181     }]
3182
3183     def _real_extract(self, url):
3184         video_id = self._match_id(url)
3185         raise ExtractorError(
3186             'Incomplete YouTube ID %s. URL %s looks truncated.' % (video_id, url),
3187             expected=True)