[youtube] Fix extraction (closes #20758, closes #20759, closes #20761, closes #20762...
[ytdl] / 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_kwargs,
20     compat_parse_qs,
21     compat_urllib_parse_unquote,
22     compat_urllib_parse_unquote_plus,
23     compat_urllib_parse_urlencode,
24     compat_urllib_parse_urlparse,
25     compat_urlparse,
26     compat_str,
27 )
28 from ..utils import (
29     clean_html,
30     error_to_compat_str,
31     ExtractorError,
32     float_or_none,
33     get_element_by_attribute,
34     get_element_by_id,
35     int_or_none,
36     mimetype2ext,
37     orderedSet,
38     parse_codecs,
39     parse_duration,
40     qualities,
41     remove_quotes,
42     remove_start,
43     smuggle_url,
44     str_or_none,
45     str_to_int,
46     try_get,
47     unescapeHTML,
48     unified_strdate,
49     unsmuggle_url,
50     uppercase_escape,
51     url_or_none,
52     urlencode_postdata,
53 )
54
55
56 class YoutubeBaseInfoExtractor(InfoExtractor):
57     """Provide base functions for Youtube extractors"""
58     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
59     _TWOFACTOR_URL = 'https://accounts.google.com/signin/challenge'
60
61     _LOOKUP_URL = 'https://accounts.google.com/_/signin/sl/lookup'
62     _CHALLENGE_URL = 'https://accounts.google.com/_/signin/sl/challenge'
63     _TFA_URL = 'https://accounts.google.com/_/signin/challenge?hl=en&TL={0}'
64
65     _NETRC_MACHINE = 'youtube'
66     # If True it will raise an error if no login info is provided
67     _LOGIN_REQUIRED = False
68
69     _PLAYLIST_ID_RE = r'(?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)[0-9A-Za-z-_]{10,}'
70
71     def _set_language(self):
72         self._set_cookie(
73             '.youtube.com', 'PREF', 'f1=50000000&hl=en',
74             # YouTube sets the expire time to about two months
75             expire_time=time.time() + 2 * 30 * 24 * 3600)
76
77     def _ids_to_results(self, ids):
78         return [
79             self.url_result(vid_id, 'Youtube', video_id=vid_id)
80             for vid_id in ids]
81
82     def _login(self):
83         """
84         Attempt to log in to YouTube.
85         True is returned if successful or skipped.
86         False is returned if login failed.
87
88         If _LOGIN_REQUIRED is set and no authentication was provided, an error is raised.
89         """
90         username, password = self._get_login_info()
91         # No authentication to be performed
92         if username is None:
93             if self._LOGIN_REQUIRED and self._downloader.params.get('cookiefile') is None:
94                 raise ExtractorError('No login info available, needed for using %s.' % self.IE_NAME, expected=True)
95             return True
96
97         login_page = self._download_webpage(
98             self._LOGIN_URL, None,
99             note='Downloading login page',
100             errnote='unable to fetch login page', fatal=False)
101         if login_page is False:
102             return
103
104         login_form = self._hidden_inputs(login_page)
105
106         def req(url, f_req, note, errnote):
107             data = login_form.copy()
108             data.update({
109                 'pstMsg': 1,
110                 'checkConnection': 'youtube',
111                 'checkedDomains': 'youtube',
112                 'hl': 'en',
113                 'deviceinfo': '[null,null,null,[],null,"US",null,null,[],"GlifWebSignIn",null,[null,null,[]]]',
114                 'f.req': json.dumps(f_req),
115                 'flowName': 'GlifWebSignIn',
116                 'flowEntry': 'ServiceLogin',
117             })
118             return self._download_json(
119                 url, None, note=note, errnote=errnote,
120                 transform_source=lambda s: re.sub(r'^[^[]*', '', s),
121                 fatal=False,
122                 data=urlencode_postdata(data), headers={
123                     'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
124                     'Google-Accounts-XSRF': 1,
125                 })
126
127         def warn(message):
128             self._downloader.report_warning(message)
129
130         lookup_req = [
131             username,
132             None, [], None, 'US', None, None, 2, False, True,
133             [
134                 None, None,
135                 [2, 1, None, 1,
136                  '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',
137                  None, [], 4],
138                 1, [None, None, []], None, None, None, True
139             ],
140             username,
141         ]
142
143         lookup_results = req(
144             self._LOOKUP_URL, lookup_req,
145             'Looking up account info', 'Unable to look up account info')
146
147         if lookup_results is False:
148             return False
149
150         user_hash = try_get(lookup_results, lambda x: x[0][2], compat_str)
151         if not user_hash:
152             warn('Unable to extract user hash')
153             return False
154
155         challenge_req = [
156             user_hash,
157             None, 1, None, [1, None, None, None, [password, None, True]],
158             [
159                 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],
160                 1, [None, None, []], None, None, None, True
161             ]]
162
163         challenge_results = req(
164             self._CHALLENGE_URL, challenge_req,
165             'Logging in', 'Unable to log in')
166
167         if challenge_results is False:
168             return
169
170         login_res = try_get(challenge_results, lambda x: x[0][5], list)
171         if login_res:
172             login_msg = try_get(login_res, lambda x: x[5], compat_str)
173             warn(
174                 'Unable to login: %s' % 'Invalid password'
175                 if login_msg == 'INCORRECT_ANSWER_ENTERED' else login_msg)
176             return False
177
178         res = try_get(challenge_results, lambda x: x[0][-1], list)
179         if not res:
180             warn('Unable to extract result entry')
181             return False
182
183         login_challenge = try_get(res, lambda x: x[0][0], list)
184         if login_challenge:
185             challenge_str = try_get(login_challenge, lambda x: x[2], compat_str)
186             if challenge_str == 'TWO_STEP_VERIFICATION':
187                 # SEND_SUCCESS - TFA code has been successfully sent to phone
188                 # QUOTA_EXCEEDED - reached the limit of TFA codes
189                 status = try_get(login_challenge, lambda x: x[5], compat_str)
190                 if status == 'QUOTA_EXCEEDED':
191                     warn('Exceeded the limit of TFA codes, try later')
192                     return False
193
194                 tl = try_get(challenge_results, lambda x: x[1][2], compat_str)
195                 if not tl:
196                     warn('Unable to extract TL')
197                     return False
198
199                 tfa_code = self._get_tfa_info('2-step verification code')
200
201                 if not tfa_code:
202                     warn(
203                         'Two-factor authentication required. Provide it either interactively or with --twofactor <code>'
204                         '(Note that only TOTP (Google Authenticator App) codes work at this time.)')
205                     return False
206
207                 tfa_code = remove_start(tfa_code, 'G-')
208
209                 tfa_req = [
210                     user_hash, None, 2, None,
211                     [
212                         9, None, None, None, None, None, None, None,
213                         [None, tfa_code, True, 2]
214                     ]]
215
216                 tfa_results = req(
217                     self._TFA_URL.format(tl), tfa_req,
218                     'Submitting TFA code', 'Unable to submit TFA code')
219
220                 if tfa_results is False:
221                     return False
222
223                 tfa_res = try_get(tfa_results, lambda x: x[0][5], list)
224                 if tfa_res:
225                     tfa_msg = try_get(tfa_res, lambda x: x[5], compat_str)
226                     warn(
227                         'Unable to finish TFA: %s' % 'Invalid TFA code'
228                         if tfa_msg == 'INCORRECT_ANSWER_ENTERED' else tfa_msg)
229                     return False
230
231                 check_cookie_url = try_get(
232                     tfa_results, lambda x: x[0][-1][2], compat_str)
233             else:
234                 CHALLENGES = {
235                     'LOGIN_CHALLENGE': "This device isn't recognized. For your security, Google wants to make sure it's really you.",
236                     'USERNAME_RECOVERY': 'Please provide additional information to aid in the recovery process.',
237                     'REAUTH': "There is something unusual about your activity. For your security, Google wants to make sure it's really you.",
238                 }
239                 challenge = CHALLENGES.get(
240                     challenge_str,
241                     '%s returned error %s.' % (self.IE_NAME, challenge_str))
242                 warn('%s\nGo to https://accounts.google.com/, login and solve a challenge.' % challenge)
243                 return False
244         else:
245             check_cookie_url = try_get(res, lambda x: x[2], compat_str)
246
247         if not check_cookie_url:
248             warn('Unable to extract CheckCookie URL')
249             return False
250
251         check_cookie_results = self._download_webpage(
252             check_cookie_url, None, 'Checking cookie', fatal=False)
253
254         if check_cookie_results is False:
255             return False
256
257         if 'https://myaccount.google.com/' not in check_cookie_results:
258             warn('Unable to log in')
259             return False
260
261         return True
262
263     def _download_webpage_handle(self, *args, **kwargs):
264         query = kwargs.get('query', {}).copy()
265         query['disable_polymer'] = 'true'
266         kwargs['query'] = query
267         return super(YoutubeBaseInfoExtractor, self)._download_webpage_handle(
268             *args, **compat_kwargs(kwargs))
269
270     def _real_initialize(self):
271         if self._downloader is None:
272             return
273         self._set_language()
274         if not self._login():
275             return
276
277
278 class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor):
279     # Extract entries from page with "Load more" button
280     def _entries(self, page, playlist_id):
281         more_widget_html = content_html = page
282         for page_num in itertools.count(1):
283             for entry in self._process_page(content_html):
284                 yield entry
285
286             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
287             if not mobj:
288                 break
289
290             more = self._download_json(
291                 'https://youtube.com/%s' % mobj.group('more'), playlist_id,
292                 'Downloading page #%s' % page_num,
293                 transform_source=uppercase_escape)
294             content_html = more['content_html']
295             if not content_html.strip():
296                 # Some webpages show a "Load more" button but they don't
297                 # have more videos
298                 break
299             more_widget_html = more['load_more_widget_html']
300
301
302 class YoutubePlaylistBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
303     def _process_page(self, content):
304         for video_id, video_title in self.extract_videos_from_page(content):
305             yield self.url_result(video_id, 'Youtube', video_id, video_title)
306
307     def extract_videos_from_page(self, page):
308         ids_in_page = []
309         titles_in_page = []
310         for mobj in re.finditer(self._VIDEO_RE, page):
311             # The link with index 0 is not the first video of the playlist (not sure if still actual)
312             if 'index' in mobj.groupdict() and mobj.group('id') == '0':
313                 continue
314             video_id = mobj.group('id')
315             video_title = unescapeHTML(mobj.group('title'))
316             if video_title:
317                 video_title = video_title.strip()
318             try:
319                 idx = ids_in_page.index(video_id)
320                 if video_title and not titles_in_page[idx]:
321                     titles_in_page[idx] = video_title
322             except ValueError:
323                 ids_in_page.append(video_id)
324                 titles_in_page.append(video_title)
325         return zip(ids_in_page, titles_in_page)
326
327
328 class YoutubePlaylistsBaseInfoExtractor(YoutubeEntryListBaseInfoExtractor):
329     def _process_page(self, content):
330         for playlist_id in orderedSet(re.findall(
331                 r'<h3[^>]+class="[^"]*yt-lockup-title[^"]*"[^>]*><a[^>]+href="/?playlist\?list=([0-9A-Za-z-_]{10,})"',
332                 content)):
333             yield self.url_result(
334                 'https://www.youtube.com/playlist?list=%s' % playlist_id, 'YoutubePlaylist')
335
336     def _real_extract(self, url):
337         playlist_id = self._match_id(url)
338         webpage = self._download_webpage(url, playlist_id)
339         title = self._og_search_title(webpage, fatal=False)
340         return self.playlist_result(self._entries(webpage, playlist_id), playlist_id, title)
341
342
343 class YoutubeIE(YoutubeBaseInfoExtractor):
344     IE_DESC = 'YouTube.com'
345     _VALID_URL = r"""(?x)^
346                      (
347                          (?:https?://|//)                                    # http(s):// or protocol-independent URL
348                          (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
349                             (?:www\.)?deturl\.com/www\.youtube\.com/|
350                             (?:www\.)?pwnyoutube\.com/|
351                             (?:www\.)?hooktube\.com/|
352                             (?:www\.)?yourepeat\.com/|
353                             tube\.majestyc\.net/|
354                             (?:(?:www|dev)\.)?invidio\.us/|
355                             (?:www\.)?invidiou\.sh/|
356                             (?:www\.)?invidious\.snopyta\.org/|
357                             (?:www\.)?invidious\.kabi\.tk/|
358                             (?:www\.)?vid\.wxzm\.sx/|
359                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
360                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
361                          (?:                                                  # the various things that can precede the ID:
362                              (?:(?:v|embed|e)/(?!videoseries))                # v/ or embed/ or e/
363                              |(?:                                             # or the v= param in all its forms
364                                  (?:(?:watch|movie)(?:_popup)?(?:\.php)?/?)?  # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
365                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #!
366                                  (?:.*?[&;])??                                # any other preceding param (like /?s=tuff&v=xxxx or ?s=tuff&amp;v=V36LpHqtcDY)
367                                  v=
368                              )
369                          ))
370                          |(?:
371                             youtu\.be|                                        # just youtu.be/xxxx
372                             vid\.plus|                                        # or vid.plus/xxxx
373                             zwearz\.com/watch|                                # or zwearz.com/watch/xxxx
374                          )/
375                          |(?:www\.)?cleanvideosearch\.com/media/action/yt/watch\?videoId=
376                          )
377                      )?                                                       # all until now is optional -> you can pass the naked ID
378                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
379                      (?!.*?\blist=
380                         (?:
381                             %(playlist_id)s|                                  # combined list/video URLs are handled by the playlist IE
382                             WL                                                # WL are handled by the watch later IE
383                         )
384                      )
385                      (?(1).+)?                                                # if we found the ID, everything can follow
386                      $""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
387     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
388     _formats = {
389         '5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
390         '6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
391         '13': {'ext': '3gp', 'acodec': 'aac', 'vcodec': 'mp4v'},
392         '17': {'ext': '3gp', 'width': 176, 'height': 144, 'acodec': 'aac', 'abr': 24, 'vcodec': 'mp4v'},
393         '18': {'ext': 'mp4', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 96, 'vcodec': 'h264'},
394         '22': {'ext': 'mp4', 'width': 1280, 'height': 720, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
395         '34': {'ext': 'flv', 'width': 640, 'height': 360, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
396         '35': {'ext': 'flv', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
397         # itag 36 videos are either 320x180 (BaW_jenozKc) or 320x240 (__2ABJjxzNo), abr varies as well
398         '36': {'ext': '3gp', 'width': 320, 'acodec': 'aac', 'vcodec': 'mp4v'},
399         '37': {'ext': 'mp4', 'width': 1920, 'height': 1080, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
400         '38': {'ext': 'mp4', 'width': 4096, 'height': 3072, 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264'},
401         '43': {'ext': 'webm', 'width': 640, 'height': 360, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
402         '44': {'ext': 'webm', 'width': 854, 'height': 480, 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8'},
403         '45': {'ext': 'webm', 'width': 1280, 'height': 720, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
404         '46': {'ext': 'webm', 'width': 1920, 'height': 1080, 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8'},
405         '59': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
406         '78': {'ext': 'mp4', 'width': 854, 'height': 480, 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264'},
407
408
409         # 3D videos
410         '82': {'ext': 'mp4', 'height': 360, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
411         '83': {'ext': 'mp4', 'height': 480, 'format_note': '3D', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -20},
412         '84': {'ext': 'mp4', 'height': 720, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
413         '85': {'ext': 'mp4', 'height': 1080, 'format_note': '3D', 'acodec': 'aac', 'abr': 192, 'vcodec': 'h264', 'preference': -20},
414         '100': {'ext': 'webm', 'height': 360, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 128, 'vcodec': 'vp8', 'preference': -20},
415         '101': {'ext': 'webm', 'height': 480, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
416         '102': {'ext': 'webm', 'height': 720, 'format_note': '3D', 'acodec': 'vorbis', 'abr': 192, 'vcodec': 'vp8', 'preference': -20},
417
418         # Apple HTTP Live Streaming
419         '91': {'ext': 'mp4', 'height': 144, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
420         '92': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
421         '93': {'ext': 'mp4', 'height': 360, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
422         '94': {'ext': 'mp4', 'height': 480, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 128, 'vcodec': 'h264', 'preference': -10},
423         '95': {'ext': 'mp4', 'height': 720, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
424         '96': {'ext': 'mp4', 'height': 1080, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 256, 'vcodec': 'h264', 'preference': -10},
425         '132': {'ext': 'mp4', 'height': 240, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 48, 'vcodec': 'h264', 'preference': -10},
426         '151': {'ext': 'mp4', 'height': 72, 'format_note': 'HLS', 'acodec': 'aac', 'abr': 24, 'vcodec': 'h264', 'preference': -10},
427
428         # DASH mp4 video
429         '133': {'ext': 'mp4', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'h264'},
430         '134': {'ext': 'mp4', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'h264'},
431         '135': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
432         '136': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264'},
433         '137': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264'},
434         '138': {'ext': 'mp4', 'format_note': 'DASH video', 'vcodec': 'h264'},  # Height can vary (https://github.com/ytdl-org/youtube-dl/issues/4559)
435         '160': {'ext': 'mp4', 'height': 144, 'format_note': 'DASH video', 'vcodec': 'h264'},
436         '212': {'ext': 'mp4', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'h264'},
437         '264': {'ext': 'mp4', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'h264'},
438         '298': {'ext': 'mp4', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
439         '299': {'ext': 'mp4', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'h264', 'fps': 60},
440         '266': {'ext': 'mp4', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'h264'},
441
442         # Dash mp4 audio
443         '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 48, 'container': 'm4a_dash'},
444         '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 128, 'container': 'm4a_dash'},
445         '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'abr': 256, 'container': 'm4a_dash'},
446         '256': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
447         '258': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'aac', 'container': 'm4a_dash'},
448         '325': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'dtse', 'container': 'm4a_dash'},
449         '328': {'ext': 'm4a', 'format_note': 'DASH audio', 'acodec': 'ec-3', 'container': 'm4a_dash'},
450
451         # Dash webm
452         '167': {'ext': 'webm', 'height': 360, 'width': 640, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
453         '168': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
454         '169': {'ext': 'webm', 'height': 720, 'width': 1280, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
455         '170': {'ext': 'webm', 'height': 1080, 'width': 1920, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
456         '218': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
457         '219': {'ext': 'webm', 'height': 480, 'width': 854, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp8'},
458         '278': {'ext': 'webm', 'height': 144, 'format_note': 'DASH video', 'container': 'webm', 'vcodec': 'vp9'},
459         '242': {'ext': 'webm', 'height': 240, 'format_note': 'DASH video', 'vcodec': 'vp9'},
460         '243': {'ext': 'webm', 'height': 360, 'format_note': 'DASH video', 'vcodec': 'vp9'},
461         '244': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
462         '245': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
463         '246': {'ext': 'webm', 'height': 480, 'format_note': 'DASH video', 'vcodec': 'vp9'},
464         '247': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9'},
465         '248': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9'},
466         '271': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9'},
467         # itag 272 videos are either 3840x2160 (e.g. RtoitU2A-3E) or 7680x4320 (sLprVF6d7Ug)
468         '272': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
469         '302': {'ext': 'webm', 'height': 720, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
470         '303': {'ext': 'webm', 'height': 1080, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
471         '308': {'ext': 'webm', 'height': 1440, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
472         '313': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9'},
473         '315': {'ext': 'webm', 'height': 2160, 'format_note': 'DASH video', 'vcodec': 'vp9', 'fps': 60},
474
475         # Dash webm audio
476         '171': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 128},
477         '172': {'ext': 'webm', 'acodec': 'vorbis', 'format_note': 'DASH audio', 'abr': 256},
478
479         # Dash webm audio with opus inside
480         '249': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 50},
481         '250': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 70},
482         '251': {'ext': 'webm', 'format_note': 'DASH audio', 'acodec': 'opus', 'abr': 160},
483
484         # RTMP (unnamed)
485         '_rtmp': {'protocol': 'rtmp'},
486     }
487     _SUBTITLE_FORMATS = ('srv1', 'srv2', 'srv3', 'ttml', 'vtt')
488
489     _GEO_BYPASS = False
490
491     IE_NAME = 'youtube'
492     _TESTS = [
493         {
494             'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&t=1s&end=9',
495             'info_dict': {
496                 'id': 'BaW_jenozKc',
497                 'ext': 'mp4',
498                 'title': 'youtube-dl test video "\'/\\ä↭𝕐',
499                 'uploader': 'Philipp Hagemeister',
500                 'uploader_id': 'phihag',
501                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
502                 'channel_id': 'UCLqxVugv74EIW3VWh2NOa3Q',
503                 'channel_url': r're:https?://(?:www\.)?youtube\.com/channel/UCLqxVugv74EIW3VWh2NOa3Q',
504                 'upload_date': '20121002',
505                 '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 .',
506                 'categories': ['Science & Technology'],
507                 'tags': ['youtube-dl'],
508                 'duration': 10,
509                 'view_count': int,
510                 'like_count': int,
511                 'dislike_count': int,
512                 'start_time': 1,
513                 'end_time': 9,
514             }
515         },
516         {
517             'url': 'https://www.youtube.com/watch?v=UxxajLWwzqY',
518             'note': 'Test generic use_cipher_signature video (#897)',
519             'info_dict': {
520                 'id': 'UxxajLWwzqY',
521                 'ext': 'mp4',
522                 'upload_date': '20120506',
523                 'title': 'Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]',
524                 'alt_title': 'I Love It (feat. Charli XCX)',
525                 'description': 'md5:f3ceb5ef83a08d95b9d146f973157cc8',
526                 'tags': ['Icona Pop i love it', 'sweden', 'pop music', 'big beat records', 'big beat', 'charli',
527                          'xcx', 'charli xcx', 'girls', 'hbo', 'i love it', "i don't care", 'icona', 'pop',
528                          'iconic ep', 'iconic', 'love', 'it'],
529                 'duration': 180,
530                 'uploader': 'Icona Pop',
531                 'uploader_id': 'IconaPop',
532                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IconaPop',
533                 'creator': 'Icona Pop',
534                 'track': 'I Love It (feat. Charli XCX)',
535                 'artist': 'Icona Pop',
536             }
537         },
538         {
539             'url': 'https://www.youtube.com/watch?v=07FYdnEawAQ',
540             'note': 'Test VEVO video with age protection (#956)',
541             'info_dict': {
542                 'id': '07FYdnEawAQ',
543                 'ext': 'mp4',
544                 'upload_date': '20130703',
545                 'title': 'Justin Timberlake - Tunnel Vision (Official Music Video) (Explicit)',
546                 'alt_title': 'Tunnel Vision',
547                 'description': 'md5:07dab3356cde4199048e4c7cd93471e1',
548                 'duration': 419,
549                 'uploader': 'justintimberlakeVEVO',
550                 'uploader_id': 'justintimberlakeVEVO',
551                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/justintimberlakeVEVO',
552                 'creator': 'Justin Timberlake',
553                 'track': 'Tunnel Vision',
554                 'artist': 'Justin Timberlake',
555                 'age_limit': 18,
556             }
557         },
558         {
559             'url': '//www.YouTube.com/watch?v=yZIXLfi8CZQ',
560             'note': 'Embed-only video (#1746)',
561             'info_dict': {
562                 'id': 'yZIXLfi8CZQ',
563                 'ext': 'mp4',
564                 'upload_date': '20120608',
565                 'title': 'Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012',
566                 'description': 'md5:09b78bd971f1e3e289601dfba15ca4f7',
567                 'uploader': 'SET India',
568                 'uploader_id': 'setindia',
569                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/setindia',
570                 'age_limit': 18,
571             }
572         },
573         {
574             'url': 'https://www.youtube.com/watch?v=BaW_jenozKc&v=UxxajLWwzqY',
575             'note': 'Use the first video ID in the URL',
576             'info_dict': {
577                 'id': 'BaW_jenozKc',
578                 'ext': 'mp4',
579                 'title': 'youtube-dl test video "\'/\\ä↭𝕐',
580                 'uploader': 'Philipp Hagemeister',
581                 'uploader_id': 'phihag',
582                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/phihag',
583                 'upload_date': '20121002',
584                 '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 .',
585                 'categories': ['Science & Technology'],
586                 'tags': ['youtube-dl'],
587                 'duration': 10,
588                 'view_count': int,
589                 'like_count': int,
590                 'dislike_count': int,
591             },
592             'params': {
593                 'skip_download': True,
594             },
595         },
596         {
597             'url': 'https://www.youtube.com/watch?v=a9LDPn-MO4I',
598             'note': '256k DASH audio (format 141) via DASH manifest',
599             'info_dict': {
600                 'id': 'a9LDPn-MO4I',
601                 'ext': 'm4a',
602                 'upload_date': '20121002',
603                 'uploader_id': '8KVIDEO',
604                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/8KVIDEO',
605                 'description': '',
606                 'uploader': '8KVIDEO',
607                 'title': 'UHDTV TEST 8K VIDEO.mp4'
608             },
609             'params': {
610                 'youtube_include_dash_manifest': True,
611                 'format': '141',
612             },
613             'skip': 'format 141 not served anymore',
614         },
615         # DASH manifest with encrypted signature
616         {
617             'url': 'https://www.youtube.com/watch?v=IB3lcPjvWLA',
618             'info_dict': {
619                 'id': 'IB3lcPjvWLA',
620                 'ext': 'm4a',
621                 'title': 'Afrojack, Spree Wilson - The Spark (Official Music Video) ft. Spree Wilson',
622                 'description': 'md5:8f5e2b82460520b619ccac1f509d43bf',
623                 'duration': 244,
624                 'uploader': 'AfrojackVEVO',
625                 'uploader_id': 'AfrojackVEVO',
626                 'upload_date': '20131011',
627             },
628             'params': {
629                 'youtube_include_dash_manifest': True,
630                 'format': '141/bestaudio[ext=m4a]',
631             },
632         },
633         # JS player signature function name containing $
634         {
635             'url': 'https://www.youtube.com/watch?v=nfWlot6h_JM',
636             'info_dict': {
637                 'id': 'nfWlot6h_JM',
638                 'ext': 'm4a',
639                 'title': 'Taylor Swift - Shake It Off',
640                 'description': 'md5:bec2185232c05479482cb5a9b82719bf',
641                 'duration': 242,
642                 'uploader': 'TaylorSwiftVEVO',
643                 'uploader_id': 'TaylorSwiftVEVO',
644                 'upload_date': '20140818',
645                 'creator': 'Taylor Swift',
646             },
647             'params': {
648                 'youtube_include_dash_manifest': True,
649                 'format': '141/bestaudio[ext=m4a]',
650             },
651         },
652         # Controversy video
653         {
654             'url': 'https://www.youtube.com/watch?v=T4XJQO3qol8',
655             'info_dict': {
656                 'id': 'T4XJQO3qol8',
657                 'ext': 'mp4',
658                 'duration': 219,
659                 'upload_date': '20100909',
660                 'uploader': 'Amazing Atheist',
661                 'uploader_id': 'TheAmazingAtheist',
662                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheAmazingAtheist',
663                 'title': 'Burning Everyone\'s Koran',
664                 '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',
665             }
666         },
667         # Normal age-gate video (No vevo, embed allowed)
668         {
669             'url': 'https://youtube.com/watch?v=HtVdAasjOgU',
670             'info_dict': {
671                 'id': 'HtVdAasjOgU',
672                 'ext': 'mp4',
673                 'title': 'The Witcher 3: Wild Hunt - The Sword Of Destiny Trailer',
674                 'description': r're:(?s).{100,}About the Game\n.*?The Witcher 3: Wild Hunt.{100,}',
675                 'duration': 142,
676                 'uploader': 'The Witcher',
677                 'uploader_id': 'WitcherGame',
678                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/WitcherGame',
679                 'upload_date': '20140605',
680                 'age_limit': 18,
681             },
682         },
683         # Age-gate video with encrypted signature
684         {
685             'url': 'https://www.youtube.com/watch?v=6kLq3WMV1nU',
686             'info_dict': {
687                 'id': '6kLq3WMV1nU',
688                 'ext': 'mp4',
689                 'title': 'Dedication To My Ex (Miss That) (Lyric Video)',
690                 'description': 'md5:33765bb339e1b47e7e72b5490139bb41',
691                 'duration': 246,
692                 'uploader': 'LloydVEVO',
693                 'uploader_id': 'LloydVEVO',
694                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/LloydVEVO',
695                 'upload_date': '20110629',
696                 'age_limit': 18,
697             },
698         },
699         # video_info is None (https://github.com/ytdl-org/youtube-dl/issues/4421)
700         # YouTube Red ad is not captured for creator
701         {
702             'url': '__2ABJjxzNo',
703             'info_dict': {
704                 'id': '__2ABJjxzNo',
705                 'ext': 'mp4',
706                 'duration': 266,
707                 'upload_date': '20100430',
708                 'uploader_id': 'deadmau5',
709                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/deadmau5',
710                 'creator': 'deadmau5',
711                 'description': 'md5:12c56784b8032162bb936a5f76d55360',
712                 'uploader': 'deadmau5',
713                 'title': 'Deadmau5 - Some Chords (HD)',
714                 'alt_title': 'Some Chords',
715             },
716             'expected_warnings': [
717                 'DASH manifest missing',
718             ]
719         },
720         # Olympics (https://github.com/ytdl-org/youtube-dl/issues/4431)
721         {
722             'url': 'lqQg6PlCWgI',
723             'info_dict': {
724                 'id': 'lqQg6PlCWgI',
725                 'ext': 'mp4',
726                 'duration': 6085,
727                 'upload_date': '20150827',
728                 'uploader_id': 'olympic',
729                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/olympic',
730                 'description': 'HO09  - Women -  GER-AUS - Hockey - 31 July 2012 - London 2012 Olympic Games',
731                 'uploader': 'Olympic',
732                 'title': 'Hockey - Women -  GER-AUS - London 2012 Olympic Games',
733             },
734             'params': {
735                 'skip_download': 'requires avconv',
736             }
737         },
738         # Non-square pixels
739         {
740             'url': 'https://www.youtube.com/watch?v=_b-2C3KPAM0',
741             'info_dict': {
742                 'id': '_b-2C3KPAM0',
743                 'ext': 'mp4',
744                 'stretched_ratio': 16 / 9.,
745                 'duration': 85,
746                 'upload_date': '20110310',
747                 'uploader_id': 'AllenMeow',
748                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/AllenMeow',
749                 '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',
750                 'uploader': '孫ᄋᄅ',
751                 'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
752             },
753         },
754         # url_encoded_fmt_stream_map is empty string
755         {
756             'url': 'qEJwOuvDf7I',
757             'info_dict': {
758                 'id': 'qEJwOuvDf7I',
759                 'ext': 'webm',
760                 'title': 'Обсуждение судебной практики по выборам 14 сентября 2014 года в Санкт-Петербурге',
761                 'description': '',
762                 'upload_date': '20150404',
763                 'uploader_id': 'spbelect',
764                 'uploader': 'Наблюдатели Петербурга',
765             },
766             'params': {
767                 'skip_download': 'requires avconv',
768             },
769             'skip': 'This live event has ended.',
770         },
771         # Extraction from multiple DASH manifests (https://github.com/ytdl-org/youtube-dl/pull/6097)
772         {
773             'url': 'https://www.youtube.com/watch?v=FIl7x6_3R5Y',
774             'info_dict': {
775                 'id': 'FIl7x6_3R5Y',
776                 'ext': 'webm',
777                 'title': 'md5:7b81415841e02ecd4313668cde88737a',
778                 'description': 'md5:116377fd2963b81ec4ce64b542173306',
779                 'duration': 220,
780                 'upload_date': '20150625',
781                 'uploader_id': 'dorappi2000',
782                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/dorappi2000',
783                 'uploader': 'dorappi2000',
784                 'formats': 'mincount:31',
785             },
786             'skip': 'not actual anymore',
787         },
788         # DASH manifest with segment_list
789         {
790             'url': 'https://www.youtube.com/embed/CsmdDsKjzN8',
791             'md5': '8ce563a1d667b599d21064e982ab9e31',
792             'info_dict': {
793                 'id': 'CsmdDsKjzN8',
794                 'ext': 'mp4',
795                 'upload_date': '20150501',  # According to '<meta itemprop="datePublished"', but in other places it's 20150510
796                 'uploader': 'Airtek',
797                 'description': 'Retransmisión en directo de la XVIII media maratón de Zaragoza.',
798                 'uploader_id': 'UCzTzUmjXxxacNnL8I3m4LnQ',
799                 'title': 'Retransmisión XVIII Media maratón Zaragoza 2015',
800             },
801             'params': {
802                 'youtube_include_dash_manifest': True,
803                 'format': '135',  # bestvideo
804             },
805             'skip': 'This live event has ended.',
806         },
807         {
808             # Multifeed videos (multiple cameras), URL is for Main Camera
809             'url': 'https://www.youtube.com/watch?v=jqWvoWXjCVs',
810             'info_dict': {
811                 'id': 'jqWvoWXjCVs',
812                 'title': 'teamPGP: Rocket League Noob Stream',
813                 'description': 'md5:dc7872fb300e143831327f1bae3af010',
814             },
815             'playlist': [{
816                 'info_dict': {
817                     'id': 'jqWvoWXjCVs',
818                     'ext': 'mp4',
819                     'title': 'teamPGP: Rocket League Noob Stream (Main Camera)',
820                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
821                     'duration': 7335,
822                     'upload_date': '20150721',
823                     'uploader': 'Beer Games Beer',
824                     'uploader_id': 'beergamesbeer',
825                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
826                     'license': 'Standard YouTube License',
827                 },
828             }, {
829                 'info_dict': {
830                     'id': '6h8e8xoXJzg',
831                     'ext': 'mp4',
832                     'title': 'teamPGP: Rocket League Noob Stream (kreestuh)',
833                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
834                     'duration': 7337,
835                     'upload_date': '20150721',
836                     'uploader': 'Beer Games Beer',
837                     'uploader_id': 'beergamesbeer',
838                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
839                     'license': 'Standard YouTube License',
840                 },
841             }, {
842                 'info_dict': {
843                     'id': 'PUOgX5z9xZw',
844                     'ext': 'mp4',
845                     'title': 'teamPGP: Rocket League Noob Stream (grizzle)',
846                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
847                     'duration': 7337,
848                     'upload_date': '20150721',
849                     'uploader': 'Beer Games Beer',
850                     'uploader_id': 'beergamesbeer',
851                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
852                     'license': 'Standard YouTube License',
853                 },
854             }, {
855                 'info_dict': {
856                     'id': 'teuwxikvS5k',
857                     'ext': 'mp4',
858                     'title': 'teamPGP: Rocket League Noob Stream (zim)',
859                     'description': 'md5:dc7872fb300e143831327f1bae3af010',
860                     'duration': 7334,
861                     'upload_date': '20150721',
862                     'uploader': 'Beer Games Beer',
863                     'uploader_id': 'beergamesbeer',
864                     'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/beergamesbeer',
865                     'license': 'Standard YouTube License',
866                 },
867             }],
868             'params': {
869                 'skip_download': True,
870             },
871             'skip': 'This video is not available.',
872         },
873         {
874             # Multifeed video with comma in title (see https://github.com/ytdl-org/youtube-dl/issues/8536)
875             'url': 'https://www.youtube.com/watch?v=gVfLd0zydlo',
876             'info_dict': {
877                 'id': 'gVfLd0zydlo',
878                 'title': 'DevConf.cz 2016 Day 2 Workshops 1 14:00 - 15:30',
879             },
880             'playlist_count': 2,
881             'skip': 'Not multifeed anymore',
882         },
883         {
884             'url': 'https://vid.plus/FlRa-iH7PGw',
885             'only_matching': True,
886         },
887         {
888             'url': 'https://zwearz.com/watch/9lWxNJF-ufM/electra-woman-dyna-girl-official-trailer-grace-helbig.html',
889             'only_matching': True,
890         },
891         {
892             # Title with JS-like syntax "};" (see https://github.com/ytdl-org/youtube-dl/issues/7468)
893             # Also tests cut-off URL expansion in video description (see
894             # https://github.com/ytdl-org/youtube-dl/issues/1892,
895             # https://github.com/ytdl-org/youtube-dl/issues/8164)
896             'url': 'https://www.youtube.com/watch?v=lsguqyKfVQg',
897             'info_dict': {
898                 'id': 'lsguqyKfVQg',
899                 'ext': 'mp4',
900                 'title': '{dark walk}; Loki/AC/Dishonored; collab w/Elflover21',
901                 'alt_title': 'Dark Walk - Position Music',
902                 'description': 'md5:8085699c11dc3f597ce0410b0dcbb34a',
903                 'duration': 133,
904                 'upload_date': '20151119',
905                 'uploader_id': 'IronSoulElf',
906                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/IronSoulElf',
907                 'uploader': 'IronSoulElf',
908                 'creator': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
909                 'track': 'Dark Walk - Position Music',
910                 'artist': 'Todd Haberman,  Daniel Law Heath and Aaron Kaplan',
911             },
912             'params': {
913                 'skip_download': True,
914             },
915         },
916         {
917             # Tags with '};' (see https://github.com/ytdl-org/youtube-dl/issues/7468)
918             'url': 'https://www.youtube.com/watch?v=Ms7iBXnlUO8',
919             'only_matching': True,
920         },
921         {
922             # Video with yt:stretch=17:0
923             'url': 'https://www.youtube.com/watch?v=Q39EVAstoRM',
924             'info_dict': {
925                 'id': 'Q39EVAstoRM',
926                 'ext': 'mp4',
927                 'title': 'Clash Of Clans#14 Dicas De Ataque Para CV 4',
928                 'description': 'md5:ee18a25c350637c8faff806845bddee9',
929                 'upload_date': '20151107',
930                 'uploader_id': 'UCCr7TALkRbo3EtFzETQF1LA',
931                 'uploader': 'CH GAMER DROID',
932             },
933             'params': {
934                 'skip_download': True,
935             },
936             'skip': 'This video does not exist.',
937         },
938         {
939             # Video licensed under Creative Commons
940             'url': 'https://www.youtube.com/watch?v=M4gD1WSo5mA',
941             'info_dict': {
942                 'id': 'M4gD1WSo5mA',
943                 'ext': 'mp4',
944                 'title': 'md5:e41008789470fc2533a3252216f1c1d1',
945                 'description': 'md5:a677553cf0840649b731a3024aeff4cc',
946                 'duration': 721,
947                 'upload_date': '20150127',
948                 'uploader_id': 'BerkmanCenter',
949                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/BerkmanCenter',
950                 'uploader': 'The Berkman Klein Center for Internet & Society',
951                 'license': 'Creative Commons Attribution license (reuse allowed)',
952             },
953             'params': {
954                 'skip_download': True,
955             },
956         },
957         {
958             # Channel-like uploader_url
959             'url': 'https://www.youtube.com/watch?v=eQcmzGIKrzg',
960             'info_dict': {
961                 'id': 'eQcmzGIKrzg',
962                 'ext': 'mp4',
963                 'title': 'Democratic Socialism and Foreign Policy | Bernie Sanders',
964                 'description': 'md5:dda0d780d5a6e120758d1711d062a867',
965                 'duration': 4060,
966                 'upload_date': '20151119',
967                 'uploader': 'Bernie Sanders',
968                 'uploader_id': 'UCH1dpzjCEiGAt8CXkryhkZg',
969                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCH1dpzjCEiGAt8CXkryhkZg',
970                 'license': 'Creative Commons Attribution license (reuse allowed)',
971             },
972             'params': {
973                 'skip_download': True,
974             },
975         },
976         {
977             'url': 'https://www.youtube.com/watch?feature=player_embedded&amp;amp;v=V36LpHqtcDY',
978             'only_matching': True,
979         },
980         {
981             # YouTube Red paid video (https://github.com/ytdl-org/youtube-dl/issues/10059)
982             'url': 'https://www.youtube.com/watch?v=i1Ko8UG-Tdo',
983             'only_matching': True,
984         },
985         {
986             # Rental video preview
987             'url': 'https://www.youtube.com/watch?v=yYr8q0y5Jfg',
988             'info_dict': {
989                 'id': 'uGpuVWrhIzE',
990                 'ext': 'mp4',
991                 'title': 'Piku - Trailer',
992                 'description': 'md5:c36bd60c3fd6f1954086c083c72092eb',
993                 'upload_date': '20150811',
994                 'uploader': 'FlixMatrix',
995                 'uploader_id': 'FlixMatrixKaravan',
996                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/FlixMatrixKaravan',
997                 'license': 'Standard YouTube License',
998             },
999             'params': {
1000                 'skip_download': True,
1001             },
1002             'skip': 'This video is not available.',
1003         },
1004         {
1005             # YouTube Red video with episode data
1006             'url': 'https://www.youtube.com/watch?v=iqKdEhx-dD4',
1007             'info_dict': {
1008                 'id': 'iqKdEhx-dD4',
1009                 'ext': 'mp4',
1010                 'title': 'Isolation - Mind Field (Ep 1)',
1011                 'description': 'md5:46a29be4ceffa65b92d277b93f463c0f',
1012                 'duration': 2085,
1013                 'upload_date': '20170118',
1014                 'uploader': 'Vsauce',
1015                 'uploader_id': 'Vsauce',
1016                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/Vsauce',
1017                 'series': 'Mind Field',
1018                 'season_number': 1,
1019                 'episode_number': 1,
1020             },
1021             'params': {
1022                 'skip_download': True,
1023             },
1024             'expected_warnings': [
1025                 'Skipping DASH manifest',
1026             ],
1027         },
1028         {
1029             # The following content has been identified by the YouTube community
1030             # as inappropriate or offensive to some audiences.
1031             'url': 'https://www.youtube.com/watch?v=6SJNVb0GnPI',
1032             'info_dict': {
1033                 'id': '6SJNVb0GnPI',
1034                 'ext': 'mp4',
1035                 'title': 'Race Differences in Intelligence',
1036                 'description': 'md5:5d161533167390427a1f8ee89a1fc6f1',
1037                 'duration': 965,
1038                 'upload_date': '20140124',
1039                 'uploader': 'New Century Foundation',
1040                 'uploader_id': 'UCEJYpZGqgUob0zVVEaLhvVg',
1041                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCEJYpZGqgUob0zVVEaLhvVg',
1042             },
1043             'params': {
1044                 'skip_download': True,
1045             },
1046         },
1047         {
1048             # itag 212
1049             'url': '1t24XAntNCY',
1050             'only_matching': True,
1051         },
1052         {
1053             # geo restricted to JP
1054             'url': 'sJL6WA-aGkQ',
1055             'only_matching': True,
1056         },
1057         {
1058             'url': 'https://www.youtube.com/watch?v=MuAGGZNfUkU&list=RDMM',
1059             'only_matching': True,
1060         },
1061         {
1062             'url': 'https://invidio.us/watch?v=BaW_jenozKc',
1063             'only_matching': True,
1064         },
1065         {
1066             # DRM protected
1067             'url': 'https://www.youtube.com/watch?v=s7_qI6_mIXc',
1068             'only_matching': True,
1069         },
1070         {
1071             # Video with unsupported adaptive stream type formats
1072             'url': 'https://www.youtube.com/watch?v=Z4Vy8R84T1U',
1073             'info_dict': {
1074                 'id': 'Z4Vy8R84T1U',
1075                 'ext': 'mp4',
1076                 'title': 'saman SMAN 53 Jakarta(Sancety) opening COFFEE4th at SMAN 53 Jakarta',
1077                 'description': 'md5:d41d8cd98f00b204e9800998ecf8427e',
1078                 'duration': 433,
1079                 'upload_date': '20130923',
1080                 'uploader': 'Amelia Putri Harwita',
1081                 'uploader_id': 'UCpOxM49HJxmC1qCalXyB3_Q',
1082                 'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCpOxM49HJxmC1qCalXyB3_Q',
1083                 'formats': 'maxcount:10',
1084             },
1085             'params': {
1086                 'skip_download': True,
1087                 'youtube_include_dash_manifest': False,
1088             },
1089         }
1090     ]
1091
1092     def __init__(self, *args, **kwargs):
1093         super(YoutubeIE, self).__init__(*args, **kwargs)
1094         self._player_cache = {}
1095
1096     def report_video_info_webpage_download(self, video_id):
1097         """Report attempt to download video info webpage."""
1098         self.to_screen('%s: Downloading video info webpage' % video_id)
1099
1100     def report_information_extraction(self, video_id):
1101         """Report attempt to extract video information."""
1102         self.to_screen('%s: Extracting video information' % video_id)
1103
1104     def report_unavailable_format(self, video_id, format):
1105         """Report extracted video URL."""
1106         self.to_screen('%s: Format %s not available' % (video_id, format))
1107
1108     def report_rtmp_download(self):
1109         """Indicate the download will use the RTMP protocol."""
1110         self.to_screen('RTMP download detected')
1111
1112     def _signature_cache_id(self, example_sig):
1113         """ Return a string representation of a signature """
1114         return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
1115
1116     def _extract_signature_function(self, video_id, player_url, example_sig):
1117         id_m = re.match(
1118             r'.*?-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player(?:-new)?|(?:/[a-z]{2,3}_[A-Z]{2})?/base)?\.(?P<ext>[a-z]+)$',
1119             player_url)
1120         if not id_m:
1121             raise ExtractorError('Cannot identify player %r' % player_url)
1122         player_type = id_m.group('ext')
1123         player_id = id_m.group('id')
1124
1125         # Read from filesystem cache
1126         func_id = '%s_%s_%s' % (
1127             player_type, player_id, self._signature_cache_id(example_sig))
1128         assert os.path.basename(func_id) == func_id
1129
1130         cache_spec = self._downloader.cache.load('youtube-sigfuncs', func_id)
1131         if cache_spec is not None:
1132             return lambda s: ''.join(s[i] for i in cache_spec)
1133
1134         download_note = (
1135             'Downloading player %s' % player_url
1136             if self._downloader.params.get('verbose') else
1137             'Downloading %s player %s' % (player_type, player_id)
1138         )
1139         if player_type == 'js':
1140             code = self._download_webpage(
1141                 player_url, video_id,
1142                 note=download_note,
1143                 errnote='Download of %s failed' % player_url)
1144             res = self._parse_sig_js(code)
1145         elif player_type == 'swf':
1146             urlh = self._request_webpage(
1147                 player_url, video_id,
1148                 note=download_note,
1149                 errnote='Download of %s failed' % player_url)
1150             code = urlh.read()
1151             res = self._parse_sig_swf(code)
1152         else:
1153             assert False, 'Invalid player type %r' % player_type
1154
1155         test_string = ''.join(map(compat_chr, range(len(example_sig))))
1156         cache_res = res(test_string)
1157         cache_spec = [ord(c) for c in cache_res]
1158
1159         self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
1160         return res
1161
1162     def _print_sig_code(self, func, example_sig):
1163         def gen_sig_code(idxs):
1164             def _genslice(start, end, step):
1165                 starts = '' if start == 0 else str(start)
1166                 ends = (':%d' % (end + step)) if end + step >= 0 else ':'
1167                 steps = '' if step == 1 else (':%d' % step)
1168                 return 's[%s%s%s]' % (starts, ends, steps)
1169
1170             step = None
1171             # Quelch pyflakes warnings - start will be set when step is set
1172             start = '(Never used)'
1173             for i, prev in zip(idxs[1:], idxs[:-1]):
1174                 if step is not None:
1175                     if i - prev == step:
1176                         continue
1177                     yield _genslice(start, prev, step)
1178                     step = None
1179                     continue
1180                 if i - prev in [-1, 1]:
1181                     step = i - prev
1182                     start = prev
1183                     continue
1184                 else:
1185                     yield 's[%d]' % prev
1186             if step is None:
1187                 yield 's[%d]' % i
1188             else:
1189                 yield _genslice(start, i, step)
1190
1191         test_string = ''.join(map(compat_chr, range(len(example_sig))))
1192         cache_res = func(test_string)
1193         cache_spec = [ord(c) for c in cache_res]
1194         expr_code = ' + '.join(gen_sig_code(cache_spec))
1195         signature_id_tuple = '(%s)' % (
1196             ', '.join(compat_str(len(p)) for p in example_sig.split('.')))
1197         code = ('if tuple(len(p) for p in s.split(\'.\')) == %s:\n'
1198                 '    return %s\n') % (signature_id_tuple, expr_code)
1199         self.to_screen('Extracted signature function:\n' + code)
1200
1201     def _parse_sig_js(self, jscode):
1202         funcname = self._search_regex(
1203             (r'(["\'])signature\1\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
1204              r'\.sig\|\|(?P<sig>[a-zA-Z0-9$]+)\(',
1205              r'yt\.akamaized\.net/\)\s*\|\|\s*.*?\s*c\s*&&\s*d\.set\([^,]+\s*,\s*(?:encodeURIComponent\s*\()?(?P<sig>[a-zA-Z0-9$]+)\(',
1206              r'\bc\s*&&\s*d\.set\([^,]+\s*,\s*(?:encodeURIComponent\s*\()?\s*(?P<sig>[a-zA-Z0-9$]+)\(',
1207              r'\bc\s*&&\s*d\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('),
1208             jscode, 'Initial JS player signature function name', group='sig')
1209
1210         jsi = JSInterpreter(jscode)
1211         initial_function = jsi.extract_function(funcname)
1212         return lambda s: initial_function([s])
1213
1214     def _parse_sig_swf(self, file_contents):
1215         swfi = SWFInterpreter(file_contents)
1216         TARGET_CLASSNAME = 'SignatureDecipher'
1217         searched_class = swfi.extract_class(TARGET_CLASSNAME)
1218         initial_function = swfi.extract_function(searched_class, 'decipher')
1219         return lambda s: initial_function([s])
1220
1221     def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
1222         """Turn the encrypted s field into a working signature"""
1223
1224         if player_url is None:
1225             raise ExtractorError('Cannot decrypt signature without player_url')
1226
1227         if player_url.startswith('//'):
1228             player_url = 'https:' + player_url
1229         elif not re.match(r'https?://', player_url):
1230             player_url = compat_urlparse.urljoin(
1231                 'https://www.youtube.com', player_url)
1232         try:
1233             player_id = (player_url, self._signature_cache_id(s))
1234             if player_id not in self._player_cache:
1235                 func = self._extract_signature_function(
1236                     video_id, player_url, s
1237                 )
1238                 self._player_cache[player_id] = func
1239             func = self._player_cache[player_id]
1240             if self._downloader.params.get('youtube_print_sig_code'):
1241                 self._print_sig_code(func, s)
1242             return func(s)
1243         except Exception as e:
1244             tb = traceback.format_exc()
1245             raise ExtractorError(
1246                 'Signature extraction failed: ' + tb, cause=e)
1247
1248     def _get_subtitles(self, video_id, webpage):
1249         try:
1250             subs_doc = self._download_xml(
1251                 'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
1252                 video_id, note=False)
1253         except ExtractorError as err:
1254             self._downloader.report_warning('unable to download video subtitles: %s' % error_to_compat_str(err))
1255             return {}
1256
1257         sub_lang_list = {}
1258         for track in subs_doc.findall('track'):
1259             lang = track.attrib['lang_code']
1260             if lang in sub_lang_list:
1261                 continue
1262             sub_formats = []
1263             for ext in self._SUBTITLE_FORMATS:
1264                 params = compat_urllib_parse_urlencode({
1265                     'lang': lang,
1266                     'v': video_id,
1267                     'fmt': ext,
1268                     'name': track.attrib['name'].encode('utf-8'),
1269                 })
1270                 sub_formats.append({
1271                     'url': 'https://www.youtube.com/api/timedtext?' + params,
1272                     'ext': ext,
1273                 })
1274             sub_lang_list[lang] = sub_formats
1275         if not sub_lang_list:
1276             self._downloader.report_warning('video doesn\'t have subtitles')
1277             return {}
1278         return sub_lang_list
1279
1280     def _get_ytplayer_config(self, video_id, webpage):
1281         patterns = (
1282             # User data may contain arbitrary character sequences that may affect
1283             # JSON extraction with regex, e.g. when '};' is contained the second
1284             # regex won't capture the whole JSON. Yet working around by trying more
1285             # concrete regex first keeping in mind proper quoted string handling
1286             # to be implemented in future that will replace this workaround (see
1287             # https://github.com/ytdl-org/youtube-dl/issues/7468,
1288             # https://github.com/ytdl-org/youtube-dl/pull/7599)
1289             r';ytplayer\.config\s*=\s*({.+?});ytplayer',
1290             r';ytplayer\.config\s*=\s*({.+?});',
1291         )
1292         config = self._search_regex(
1293             patterns, webpage, 'ytplayer.config', default=None)
1294         if config:
1295             return self._parse_json(
1296                 uppercase_escape(config), video_id, fatal=False)
1297
1298     def _get_automatic_captions(self, video_id, webpage):
1299         """We need the webpage for getting the captions url, pass it as an
1300            argument to speed up the process."""
1301         self.to_screen('%s: Looking for automatic captions' % video_id)
1302         player_config = self._get_ytplayer_config(video_id, webpage)
1303         err_msg = 'Couldn\'t find automatic captions for %s' % video_id
1304         if not player_config:
1305             self._downloader.report_warning(err_msg)
1306             return {}
1307         try:
1308             args = player_config['args']
1309             caption_url = args.get('ttsurl')
1310             if caption_url:
1311                 timestamp = args['timestamp']
1312                 # We get the available subtitles
1313                 list_params = compat_urllib_parse_urlencode({
1314                     'type': 'list',
1315                     'tlangs': 1,
1316                     'asrs': 1,
1317                 })
1318                 list_url = caption_url + '&' + list_params
1319                 caption_list = self._download_xml(list_url, video_id)
1320                 original_lang_node = caption_list.find('track')
1321                 if original_lang_node is None:
1322                     self._downloader.report_warning('Video doesn\'t have automatic captions')
1323                     return {}
1324                 original_lang = original_lang_node.attrib['lang_code']
1325                 caption_kind = original_lang_node.attrib.get('kind', '')
1326
1327                 sub_lang_list = {}
1328                 for lang_node in caption_list.findall('target'):
1329                     sub_lang = lang_node.attrib['lang_code']
1330                     sub_formats = []
1331                     for ext in self._SUBTITLE_FORMATS:
1332                         params = compat_urllib_parse_urlencode({
1333                             'lang': original_lang,
1334                             'tlang': sub_lang,
1335                             'fmt': ext,
1336                             'ts': timestamp,
1337                             'kind': caption_kind,
1338                         })
1339                         sub_formats.append({
1340                             'url': caption_url + '&' + params,
1341                             'ext': ext,
1342                         })
1343                     sub_lang_list[sub_lang] = sub_formats
1344                 return sub_lang_list
1345
1346             def make_captions(sub_url, sub_langs):
1347                 parsed_sub_url = compat_urllib_parse_urlparse(sub_url)
1348                 caption_qs = compat_parse_qs(parsed_sub_url.query)
1349                 captions = {}
1350                 for sub_lang in sub_langs:
1351                     sub_formats = []
1352                     for ext in self._SUBTITLE_FORMATS:
1353                         caption_qs.update({
1354                             'tlang': [sub_lang],
1355                             'fmt': [ext],
1356                         })
1357                         sub_url = compat_urlparse.urlunparse(parsed_sub_url._replace(
1358                             query=compat_urllib_parse_urlencode(caption_qs, True)))
1359                         sub_formats.append({
1360                             'url': sub_url,
1361                             'ext': ext,
1362                         })
1363                     captions[sub_lang] = sub_formats
1364                 return captions
1365
1366             # New captions format as of 22.06.2017
1367             player_response = args.get('player_response')
1368             if player_response and isinstance(player_response, compat_str):
1369                 player_response = self._parse_json(
1370                     player_response, video_id, fatal=False)
1371                 if player_response:
1372                     renderer = player_response['captions']['playerCaptionsTracklistRenderer']
1373                     base_url = renderer['captionTracks'][0]['baseUrl']
1374                     sub_lang_list = []
1375                     for lang in renderer['translationLanguages']:
1376                         lang_code = lang.get('languageCode')
1377                         if lang_code:
1378                             sub_lang_list.append(lang_code)
1379                     return make_captions(base_url, sub_lang_list)
1380
1381             # Some videos don't provide ttsurl but rather caption_tracks and
1382             # caption_translation_languages (e.g. 20LmZk1hakA)
1383             # Does not used anymore as of 22.06.2017
1384             caption_tracks = args['caption_tracks']
1385             caption_translation_languages = args['caption_translation_languages']
1386             caption_url = compat_parse_qs(caption_tracks.split(',')[0])['u'][0]
1387             sub_lang_list = []
1388             for lang in caption_translation_languages.split(','):
1389                 lang_qs = compat_parse_qs(compat_urllib_parse_unquote_plus(lang))
1390                 sub_lang = lang_qs.get('lc', [None])[0]
1391                 if sub_lang:
1392                     sub_lang_list.append(sub_lang)
1393             return make_captions(caption_url, sub_lang_list)
1394         # An extractor error can be raise by the download process if there are
1395         # no automatic captions but there are subtitles
1396         except (KeyError, IndexError, ExtractorError):
1397             self._downloader.report_warning(err_msg)
1398             return {}
1399
1400     def _mark_watched(self, video_id, video_info, player_response):
1401         playback_url = url_or_none(try_get(
1402             player_response,
1403             lambda x: x['playbackTracking']['videostatsPlaybackUrl']['baseUrl']) or try_get(
1404             video_info, lambda x: x['videostats_playback_base_url'][0]))
1405         if not playback_url:
1406             return
1407         parsed_playback_url = compat_urlparse.urlparse(playback_url)
1408         qs = compat_urlparse.parse_qs(parsed_playback_url.query)
1409
1410         # cpn generation algorithm is reverse engineered from base.js.
1411         # In fact it works even with dummy cpn.
1412         CPN_ALPHABET = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_'
1413         cpn = ''.join((CPN_ALPHABET[random.randint(0, 256) & 63] for _ in range(0, 16)))
1414
1415         qs.update({
1416             'ver': ['2'],
1417             'cpn': [cpn],
1418         })
1419         playback_url = compat_urlparse.urlunparse(
1420             parsed_playback_url._replace(query=compat_urllib_parse_urlencode(qs, True)))
1421
1422         self._download_webpage(
1423             playback_url, video_id, 'Marking watched',
1424             'Unable to mark watched', fatal=False)
1425
1426     @staticmethod
1427     def _extract_urls(webpage):
1428         # Embedded YouTube player
1429         entries = [
1430             unescapeHTML(mobj.group('url'))
1431             for mobj in re.finditer(r'''(?x)
1432             (?:
1433                 <iframe[^>]+?src=|
1434                 data-video-url=|
1435                 <embed[^>]+?src=|
1436                 embedSWF\(?:\s*|
1437                 <object[^>]+data=|
1438                 new\s+SWFObject\(
1439             )
1440             (["\'])
1441                 (?P<url>(?:https?:)?//(?:www\.)?youtube(?:-nocookie)?\.com/
1442                 (?:embed|v|p)/[0-9A-Za-z_-]{11}.*?)
1443             \1''', webpage)]
1444
1445         # lazyYT YouTube embed
1446         entries.extend(list(map(
1447             unescapeHTML,
1448             re.findall(r'class="lazyYT" data-youtube-id="([^"]+)"', webpage))))
1449
1450         # Wordpress "YouTube Video Importer" plugin
1451         matches = re.findall(r'''(?x)<div[^>]+
1452             class=(?P<q1>[\'"])[^\'"]*\byvii_single_video_player\b[^\'"]*(?P=q1)[^>]+
1453             data-video_id=(?P<q2>[\'"])([^\'"]+)(?P=q2)''', webpage)
1454         entries.extend(m[-1] for m in matches)
1455
1456         return entries
1457
1458     @staticmethod
1459     def _extract_url(webpage):
1460         urls = YoutubeIE._extract_urls(webpage)
1461         return urls[0] if urls else None
1462
1463     @classmethod
1464     def extract_id(cls, url):
1465         mobj = re.match(cls._VALID_URL, url, re.VERBOSE)
1466         if mobj is None:
1467             raise ExtractorError('Invalid URL: %s' % url)
1468         video_id = mobj.group(2)
1469         return video_id
1470
1471     def _extract_annotations(self, video_id):
1472         url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
1473         return self._download_webpage(url, video_id, note='Searching for annotations.', errnote='Unable to download video annotations.')
1474
1475     @staticmethod
1476     def _extract_chapters(description, duration):
1477         if not description:
1478             return None
1479         chapter_lines = re.findall(
1480             r'(?:^|<br\s*/>)([^<]*<a[^>]+onclick=["\']yt\.www\.watch\.player\.seekTo[^>]+>(\d{1,2}:\d{1,2}(?::\d{1,2})?)</a>[^>]*)(?=$|<br\s*/>)',
1481             description)
1482         if not chapter_lines:
1483             return None
1484         chapters = []
1485         for next_num, (chapter_line, time_point) in enumerate(
1486                 chapter_lines, start=1):
1487             start_time = parse_duration(time_point)
1488             if start_time is None:
1489                 continue
1490             if start_time > duration:
1491                 break
1492             end_time = (duration if next_num == len(chapter_lines)
1493                         else parse_duration(chapter_lines[next_num][1]))
1494             if end_time is None:
1495                 continue
1496             if end_time > duration:
1497                 end_time = duration
1498             if start_time > end_time:
1499                 break
1500             chapter_title = re.sub(
1501                 r'<a[^>]+>[^<]+</a>', '', chapter_line).strip(' \t-')
1502             chapter_title = re.sub(r'\s+', ' ', chapter_title)
1503             chapters.append({
1504                 'start_time': start_time,
1505                 'end_time': end_time,
1506                 'title': chapter_title,
1507             })
1508         return chapters
1509
1510     def _real_extract(self, url):
1511         url, smuggled_data = unsmuggle_url(url, {})
1512
1513         proto = (
1514             'http' if self._downloader.params.get('prefer_insecure', False)
1515             else 'https')
1516
1517         start_time = None
1518         end_time = None
1519         parsed_url = compat_urllib_parse_urlparse(url)
1520         for component in [parsed_url.fragment, parsed_url.query]:
1521             query = compat_parse_qs(component)
1522             if start_time is None and 't' in query:
1523                 start_time = parse_duration(query['t'][0])
1524             if start_time is None and 'start' in query:
1525                 start_time = parse_duration(query['start'][0])
1526             if end_time is None and 'end' in query:
1527                 end_time = parse_duration(query['end'][0])
1528
1529         # Extract original video URL from URL with redirection, like age verification, using next_url parameter
1530         mobj = re.search(self._NEXT_URL_RE, url)
1531         if mobj:
1532             url = proto + '://www.youtube.com/' + compat_urllib_parse_unquote(mobj.group(1)).lstrip('/')
1533         video_id = self.extract_id(url)
1534
1535         # Get video webpage
1536         url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id
1537         video_webpage = self._download_webpage(url, video_id)
1538
1539         # Attempt to extract SWF player URL
1540         mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
1541         if mobj is not None:
1542             player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
1543         else:
1544             player_url = None
1545
1546         dash_mpds = []
1547
1548         def add_dash_mpd(video_info):
1549             dash_mpd = video_info.get('dashmpd')
1550             if dash_mpd and dash_mpd[0] not in dash_mpds:
1551                 dash_mpds.append(dash_mpd[0])
1552
1553         def add_dash_mpd_pr(pl_response):
1554             dash_mpd = url_or_none(try_get(
1555                 pl_response, lambda x: x['streamingData']['dashManifestUrl'],
1556                 compat_str))
1557             if dash_mpd and dash_mpd not in dash_mpds:
1558                 dash_mpds.append(dash_mpd)
1559
1560         is_live = None
1561         view_count = None
1562
1563         def extract_view_count(v_info):
1564             return int_or_none(try_get(v_info, lambda x: x['view_count'][0]))
1565
1566         player_response = {}
1567
1568         # Get video info
1569         embed_webpage = None
1570         if re.search(r'player-age-gate-content">', video_webpage) is not None:
1571             age_gate = True
1572             # We simulate the access to the video from www.youtube.com/v/{video_id}
1573             # this can be viewed without login into Youtube
1574             url = proto + '://www.youtube.com/embed/%s' % video_id
1575             embed_webpage = self._download_webpage(url, video_id, 'Downloading embed webpage')
1576             data = compat_urllib_parse_urlencode({
1577                 'video_id': video_id,
1578                 'eurl': 'https://youtube.googleapis.com/v/' + video_id,
1579                 'sts': self._search_regex(
1580                     r'"sts"\s*:\s*(\d+)', embed_webpage, 'sts', default=''),
1581             })
1582             video_info_url = proto + '://www.youtube.com/get_video_info?' + data
1583             video_info_webpage = self._download_webpage(
1584                 video_info_url, video_id,
1585                 note='Refetching age-gated info webpage',
1586                 errnote='unable to download video info webpage')
1587             video_info = compat_parse_qs(video_info_webpage)
1588             add_dash_mpd(video_info)
1589         else:
1590             age_gate = False
1591             video_info = None
1592             sts = None
1593             # Try looking directly into the video webpage
1594             ytplayer_config = self._get_ytplayer_config(video_id, video_webpage)
1595             if ytplayer_config:
1596                 args = ytplayer_config['args']
1597                 if args.get('url_encoded_fmt_stream_map') or args.get('hlsvp'):
1598                     # Convert to the same format returned by compat_parse_qs
1599                     video_info = dict((k, [v]) for k, v in args.items())
1600                     add_dash_mpd(video_info)
1601                 # Rental video is not rented but preview is available (e.g.
1602                 # https://www.youtube.com/watch?v=yYr8q0y5Jfg,
1603                 # https://github.com/ytdl-org/youtube-dl/issues/10532)
1604                 if not video_info and args.get('ypc_vid'):
1605                     return self.url_result(
1606                         args['ypc_vid'], YoutubeIE.ie_key(), video_id=args['ypc_vid'])
1607                 if args.get('livestream') == '1' or args.get('live_playback') == 1:
1608                     is_live = True
1609                 sts = ytplayer_config.get('sts')
1610                 if not player_response:
1611                     pl_response = str_or_none(args.get('player_response'))
1612                     if pl_response:
1613                         pl_response = self._parse_json(pl_response, video_id, fatal=False)
1614                         if isinstance(pl_response, dict):
1615                             player_response = pl_response
1616             if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):
1617                 add_dash_mpd_pr(player_response)
1618                 # We also try looking in get_video_info since it may contain different dashmpd
1619                 # URL that points to a DASH manifest with possibly different itag set (some itags
1620                 # are missing from DASH manifest pointed by webpage's dashmpd, some - from DASH
1621                 # manifest pointed by get_video_info's dashmpd).
1622                 # The general idea is to take a union of itags of both DASH manifests (for example
1623                 # video with such 'manifest behavior' see https://github.com/ytdl-org/youtube-dl/issues/6093)
1624                 self.report_video_info_webpage_download(video_id)
1625                 for el in ('info', 'embedded', 'detailpage', 'vevo', ''):
1626                     query = {
1627                         'video_id': video_id,
1628                         'ps': 'default',
1629                         'eurl': '',
1630                         'gl': 'US',
1631                         'hl': 'en',
1632                     }
1633                     if el:
1634                         query['el'] = el
1635                     if sts:
1636                         query['sts'] = sts
1637                     video_info_webpage = self._download_webpage(
1638                         '%s://www.youtube.com/get_video_info' % proto,
1639                         video_id, note=False,
1640                         errnote='unable to download video info webpage',
1641                         fatal=False, query=query)
1642                     if not video_info_webpage:
1643                         continue
1644                     get_video_info = compat_parse_qs(video_info_webpage)
1645                     if not player_response:
1646                         pl_response = get_video_info.get('player_response', [None])[0]
1647                         if isinstance(pl_response, dict):
1648                             player_response = pl_response
1649                             add_dash_mpd_pr(player_response)
1650                     add_dash_mpd(get_video_info)
1651                     if view_count is None:
1652                         view_count = extract_view_count(get_video_info)
1653                     if not video_info:
1654                         video_info = get_video_info
1655                     get_token = get_video_info.get('token') or get_video_info.get('account_playback_token')
1656                     if get_token:
1657                         # Different get_video_info requests may report different results, e.g.
1658                         # some may report video unavailability, but some may serve it without
1659                         # any complaint (see https://github.com/ytdl-org/youtube-dl/issues/7362,
1660                         # the original webpage as well as el=info and el=embedded get_video_info
1661                         # requests report video unavailability due to geo restriction while
1662                         # el=detailpage succeeds and returns valid data). This is probably
1663                         # due to YouTube measures against IP ranges of hosting providers.
1664                         # Working around by preferring the first succeeded video_info containing
1665                         # the token if no such video_info yet was found.
1666                         token = video_info.get('token') or video_info.get('account_playback_token')
1667                         if not token:
1668                             video_info = get_video_info
1669                         break
1670
1671         def extract_unavailable_message():
1672             return self._html_search_regex(
1673                 r'(?s)<h1[^>]+id="unavailable-message"[^>]*>(.+?)</h1>',
1674                 video_webpage, 'unavailable message', default=None)
1675
1676         if not video_info:
1677             unavailable_message = extract_unavailable_message()
1678             if not unavailable_message:
1679                 unavailable_message = 'Unable to extract video data'
1680             raise ExtractorError(
1681                 'YouTube said: %s' % unavailable_message, expected=True, video_id=video_id)
1682
1683         token = video_info.get('token') or video_info.get('account_playback_token')
1684         if not token:
1685             if 'reason' in video_info:
1686                 if 'The uploader has not made this video available in your country.' in video_info['reason']:
1687                     regions_allowed = self._html_search_meta(
1688                         'regionsAllowed', video_webpage, default=None)
1689                     countries = regions_allowed.split(',') if regions_allowed else None
1690                     self.raise_geo_restricted(
1691                         msg=video_info['reason'][0], countries=countries)
1692                 reason = video_info['reason'][0]
1693                 if 'Invalid parameters' in reason:
1694                     unavailable_message = extract_unavailable_message()
1695                     if unavailable_message:
1696                         reason = unavailable_message
1697                 raise ExtractorError(
1698                     'YouTube said: %s' % reason,
1699                     expected=True, video_id=video_id)
1700             else:
1701                 raise ExtractorError(
1702                     '"token" parameter not in video info for unknown reason',
1703                     video_id=video_id)
1704
1705         if video_info.get('license_info'):
1706             raise ExtractorError('This video is DRM protected.', expected=True)
1707
1708         video_details = try_get(
1709             player_response, lambda x: x['videoDetails'], dict) or {}
1710
1711         # title
1712         if 'title' in video_info:
1713             video_title = video_info['title'][0]
1714         elif 'title' in player_response:
1715             video_title = video_details['title']
1716         else:
1717             self._downloader.report_warning('Unable to extract video title')
1718             video_title = '_'
1719
1720         # description
1721         description_original = video_description = get_element_by_id("eow-description", video_webpage)
1722         if video_description:
1723
1724             def replace_url(m):
1725                 redir_url = compat_urlparse.urljoin(url, m.group(1))
1726                 parsed_redir_url = compat_urllib_parse_urlparse(redir_url)
1727                 if re.search(r'^(?:www\.)?(?:youtube(?:-nocookie)?\.com|youtu\.be)$', parsed_redir_url.netloc) and parsed_redir_url.path == '/redirect':
1728                     qs = compat_parse_qs(parsed_redir_url.query)
1729                     q = qs.get('q')
1730                     if q and q[0]:
1731                         return q[0]
1732                 return redir_url
1733
1734             description_original = video_description = re.sub(r'''(?x)
1735                 <a\s+
1736                     (?:[a-zA-Z-]+="[^"]*"\s+)*?
1737                     (?:title|href)="([^"]+)"\s+
1738                     (?:[a-zA-Z-]+="[^"]*"\s+)*?
1739                     class="[^"]*"[^>]*>
1740                 [^<]+\.{3}\s*
1741                 </a>
1742             ''', replace_url, video_description)
1743             video_description = clean_html(video_description)
1744         else:
1745             fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
1746             if fd_mobj:
1747                 video_description = unescapeHTML(fd_mobj.group(1))
1748             else:
1749                 video_description = ''
1750
1751         if not smuggled_data.get('force_singlefeed', False):
1752             if not self._downloader.params.get('noplaylist'):
1753                 multifeed_metadata_list = try_get(
1754                     player_response,
1755                     lambda x: x['multicamera']['playerLegacyMulticameraRenderer']['metadataList'],
1756                     compat_str) or try_get(
1757                     video_info, lambda x: x['multifeed_metadata_list'][0], compat_str)
1758                 if multifeed_metadata_list:
1759                     entries = []
1760                     feed_ids = []
1761                     for feed in multifeed_metadata_list.split(','):
1762                         # Unquote should take place before split on comma (,) since textual
1763                         # fields may contain comma as well (see
1764                         # https://github.com/ytdl-org/youtube-dl/issues/8536)
1765                         feed_data = compat_parse_qs(compat_urllib_parse_unquote_plus(feed))
1766                         entries.append({
1767                             '_type': 'url_transparent',
1768                             'ie_key': 'Youtube',
1769                             'url': smuggle_url(
1770                                 '%s://www.youtube.com/watch?v=%s' % (proto, feed_data['id'][0]),
1771                                 {'force_singlefeed': True}),
1772                             'title': '%s (%s)' % (video_title, feed_data['title'][0]),
1773                         })
1774                         feed_ids.append(feed_data['id'][0])
1775                     self.to_screen(
1776                         'Downloading multifeed video (%s) - add --no-playlist to just download video %s'
1777                         % (', '.join(feed_ids), video_id))
1778                     return self.playlist_result(entries, video_id, video_title, video_description)
1779             else:
1780                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
1781
1782         if view_count is None:
1783             view_count = extract_view_count(video_info)
1784         if view_count is None and video_details:
1785             view_count = int_or_none(video_details.get('viewCount'))
1786
1787         # Check for "rental" videos
1788         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
1789             raise ExtractorError('"rental" videos not supported. See https://github.com/ytdl-org/youtube-dl/issues/359 for more information.', expected=True)
1790
1791         def _extract_filesize(media_url):
1792             return int_or_none(self._search_regex(
1793                 r'\bclen[=/](\d+)', media_url, 'filesize', default=None))
1794
1795         if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1796             self.report_rtmp_download()
1797             formats = [{
1798                 'format_id': '_rtmp',
1799                 'protocol': 'rtmp',
1800                 'url': video_info['conn'][0],
1801                 'player_url': player_url,
1802             }]
1803         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):
1804             encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts', [''])[0]
1805             if 'rtmpe%3Dyes' in encoded_url_map:
1806                 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/ytdl-org/youtube-dl/issues/343 for more information.', expected=True)
1807             formats_spec = {}
1808             fmt_list = video_info.get('fmt_list', [''])[0]
1809             if fmt_list:
1810                 for fmt in fmt_list.split(','):
1811                     spec = fmt.split('/')
1812                     if len(spec) > 1:
1813                         width_height = spec[1].split('x')
1814                         if len(width_height) == 2:
1815                             formats_spec[spec[0]] = {
1816                                 'resolution': spec[1],
1817                                 'width': int_or_none(width_height[0]),
1818                                 'height': int_or_none(width_height[1]),
1819                             }
1820             q = qualities(['small', 'medium', 'hd720'])
1821             streaming_formats = try_get(player_response, lambda x: x['streamingData']['formats'], list)
1822             if streaming_formats:
1823                 for fmt in streaming_formats:
1824                     itag = str_or_none(fmt.get('itag'))
1825                     if not itag:
1826                         continue
1827                     quality = fmt.get('quality')
1828                     quality_label = fmt.get('qualityLabel') or quality
1829                     formats_spec[itag] = {
1830                         'asr': int_or_none(fmt.get('audioSampleRate')),
1831                         'filesize': int_or_none(fmt.get('contentLength')),
1832                         'format_note': quality_label,
1833                         'fps': int_or_none(fmt.get('fps')),
1834                         'height': int_or_none(fmt.get('height')),
1835                         'quality': q(quality),
1836                         # bitrate for itag 43 is always 2147483647
1837                         'tbr': float_or_none(fmt.get('averageBitrate') or fmt.get('bitrate'), 1000) if itag != '43' else None,
1838                         'width': int_or_none(fmt.get('width')),
1839                     }
1840             formats = []
1841             for url_data_str in encoded_url_map.split(','):
1842                 url_data = compat_parse_qs(url_data_str)
1843                 if 'itag' not in url_data or 'url' not in url_data:
1844                     continue
1845                 stream_type = int_or_none(try_get(url_data, lambda x: x['stream_type'][0]))
1846                 # Unsupported FORMAT_STREAM_TYPE_OTF
1847                 if stream_type == 3:
1848                     continue
1849                 format_id = url_data['itag'][0]
1850                 url = url_data['url'][0]
1851
1852                 if 's' in url_data or self._downloader.params.get('youtube_include_dash_manifest', True):
1853                     ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
1854                     jsplayer_url_json = self._search_regex(
1855                         ASSETS_RE,
1856                         embed_webpage if age_gate else video_webpage,
1857                         'JS player URL (1)', default=None)
1858                     if not jsplayer_url_json and not age_gate:
1859                         # We need the embed website after all
1860                         if embed_webpage is None:
1861                             embed_url = proto + '://www.youtube.com/embed/%s' % video_id
1862                             embed_webpage = self._download_webpage(
1863                                 embed_url, video_id, 'Downloading embed webpage')
1864                         jsplayer_url_json = self._search_regex(
1865                             ASSETS_RE, embed_webpage, 'JS player URL')
1866
1867                     player_url = json.loads(jsplayer_url_json)
1868                     if player_url is None:
1869                         player_url_json = self._search_regex(
1870                             r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
1871                             video_webpage, 'age gate player URL')
1872                         player_url = json.loads(player_url_json)
1873
1874                 if 'sig' in url_data:
1875                     url += '&signature=' + url_data['sig'][0]
1876                 elif 's' in url_data:
1877                     encrypted_sig = url_data['s'][0]
1878
1879                     if self._downloader.params.get('verbose'):
1880                         if player_url is None:
1881                             player_version = 'unknown'
1882                             player_desc = 'unknown'
1883                         else:
1884                             if player_url.endswith('swf'):
1885                                 player_version = self._search_regex(
1886                                     r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
1887                                     'flash player', fatal=False)
1888                                 player_desc = 'flash player %s' % player_version
1889                             else:
1890                                 player_version = self._search_regex(
1891                                     [r'html5player-([^/]+?)(?:/html5player(?:-new)?)?\.js',
1892                                      r'(?:www|player(?:_ias)?)-([^/]+)(?:/[a-z]{2,3}_[A-Z]{2})?/base\.js'],
1893                                     player_url,
1894                                     'html5 player', fatal=False)
1895                                 player_desc = 'html5 player %s' % player_version
1896
1897                         parts_sizes = self._signature_cache_id(encrypted_sig)
1898                         self.to_screen('{%s} signature length %s, %s' %
1899                                        (format_id, parts_sizes, player_desc))
1900
1901                     signature = self._decrypt_signature(
1902                         encrypted_sig, video_id, player_url, age_gate)
1903                     url += '&signature=' + signature
1904                 if 'ratebypass' not in url:
1905                     url += '&ratebypass=yes'
1906
1907                 dct = {
1908                     'format_id': format_id,
1909                     'url': url,
1910                     'player_url': player_url,
1911                 }
1912                 if format_id in self._formats:
1913                     dct.update(self._formats[format_id])
1914                 if format_id in formats_spec:
1915                     dct.update(formats_spec[format_id])
1916
1917                 # Some itags are not included in DASH manifest thus corresponding formats will
1918                 # lack metadata (see https://github.com/ytdl-org/youtube-dl/pull/5993).
1919                 # Trying to extract metadata from url_encoded_fmt_stream_map entry.
1920                 mobj = re.search(r'^(?P<width>\d+)[xX](?P<height>\d+)$', url_data.get('size', [''])[0])
1921                 width, height = (int(mobj.group('width')), int(mobj.group('height'))) if mobj else (None, None)
1922
1923                 filesize = int_or_none(url_data.get(
1924                     'clen', [None])[0]) or _extract_filesize(url)
1925
1926                 quality = url_data.get('quality', [None])[0]
1927
1928                 more_fields = {
1929                     'filesize': filesize,
1930                     'tbr': float_or_none(url_data.get('bitrate', [None])[0], 1000),
1931                     'width': width,
1932                     'height': height,
1933                     'fps': int_or_none(url_data.get('fps', [None])[0]),
1934                     'format_note': url_data.get('quality_label', [None])[0] or quality,
1935                     'quality': q(quality),
1936                 }
1937                 for key, value in more_fields.items():
1938                     if value:
1939                         dct[key] = value
1940                 type_ = url_data.get('type', [None])[0]
1941                 if type_:
1942                     type_split = type_.split(';')
1943                     kind_ext = type_split[0].split('/')
1944                     if len(kind_ext) == 2:
1945                         kind, _ = kind_ext
1946                         dct['ext'] = mimetype2ext(type_split[0])
1947                         if kind in ('audio', 'video'):
1948                             codecs = None
1949                             for mobj in re.finditer(
1950                                     r'(?P<key>[a-zA-Z_-]+)=(?P<quote>["\']?)(?P<val>.+?)(?P=quote)(?:;|$)', type_):
1951                                 if mobj.group('key') == 'codecs':
1952                                     codecs = mobj.group('val')
1953                                     break
1954                             if codecs:
1955                                 dct.update(parse_codecs(codecs))
1956                 if dct.get('acodec') == 'none' or dct.get('vcodec') == 'none':
1957                     dct['downloader_options'] = {
1958                         # Youtube throttles chunks >~10M
1959                         'http_chunk_size': 10485760,
1960                     }
1961                 formats.append(dct)
1962         else:
1963             manifest_url = (
1964                 url_or_none(try_get(
1965                     player_response,
1966                     lambda x: x['streamingData']['hlsManifestUrl'],
1967                     compat_str)) or
1968                 url_or_none(try_get(
1969                     video_info, lambda x: x['hlsvp'][0], compat_str)))
1970             if manifest_url:
1971                 formats = []
1972                 m3u8_formats = self._extract_m3u8_formats(
1973                     manifest_url, video_id, 'mp4', fatal=False)
1974                 for a_format in m3u8_formats:
1975                     itag = self._search_regex(
1976                         r'/itag/(\d+)/', a_format['url'], 'itag', default=None)
1977                     if itag:
1978                         a_format['format_id'] = itag
1979                         if itag in self._formats:
1980                             dct = self._formats[itag].copy()
1981                             dct.update(a_format)
1982                             a_format = dct
1983                     a_format['player_url'] = player_url
1984                     # Accept-Encoding header causes failures in live streams on Youtube and Youtube Gaming
1985                     a_format.setdefault('http_headers', {})['Youtubedl-no-compression'] = 'True'
1986                     formats.append(a_format)
1987             else:
1988                 error_message = clean_html(video_info.get('reason', [None])[0])
1989                 if not error_message:
1990                     error_message = extract_unavailable_message()
1991                 if error_message:
1992                     raise ExtractorError(error_message, expected=True)
1993                 raise ExtractorError('no conn, hlsvp, hlsManifestUrl or url_encoded_fmt_stream_map information found in video info')
1994
1995         # uploader
1996         video_uploader = try_get(
1997             video_info, lambda x: x['author'][0],
1998             compat_str) or str_or_none(video_details.get('author'))
1999         if video_uploader:
2000             video_uploader = compat_urllib_parse_unquote_plus(video_uploader)
2001         else:
2002             self._downloader.report_warning('unable to extract uploader name')
2003
2004         # uploader_id
2005         video_uploader_id = None
2006         video_uploader_url = None
2007         mobj = re.search(
2008             r'<link itemprop="url" href="(?P<uploader_url>https?://www\.youtube\.com/(?:user|channel)/(?P<uploader_id>[^"]+))">',
2009             video_webpage)
2010         if mobj is not None:
2011             video_uploader_id = mobj.group('uploader_id')
2012             video_uploader_url = mobj.group('uploader_url')
2013         else:
2014             self._downloader.report_warning('unable to extract uploader nickname')
2015
2016         channel_id = self._html_search_meta(
2017             'channelId', video_webpage, 'channel id')
2018         channel_url = 'http://www.youtube.com/channel/%s' % channel_id if channel_id else None
2019
2020         # thumbnail image
2021         # We try first to get a high quality image:
2022         m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
2023                             video_webpage, re.DOTALL)
2024         if m_thumb is not None:
2025             video_thumbnail = m_thumb.group(1)
2026         elif 'thumbnail_url' not in video_info:
2027             self._downloader.report_warning('unable to extract video thumbnail')
2028             video_thumbnail = None
2029         else:   # don't panic if we can't find it
2030             video_thumbnail = compat_urllib_parse_unquote_plus(video_info['thumbnail_url'][0])
2031
2032         # upload date
2033         upload_date = self._html_search_meta(
2034             'datePublished', video_webpage, 'upload date', default=None)
2035         if not upload_date:
2036             upload_date = self._search_regex(
2037                 [r'(?s)id="eow-date.*?>(.*?)</span>',
2038                  r'(?:id="watch-uploader-info".*?>.*?|["\']simpleText["\']\s*:\s*["\'])(?:Published|Uploaded|Streamed live|Started) on (.+?)[<"\']'],
2039                 video_webpage, 'upload date', default=None)
2040         upload_date = unified_strdate(upload_date)
2041
2042         video_license = self._html_search_regex(
2043             r'<h4[^>]+class="title"[^>]*>\s*License\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li',
2044             video_webpage, 'license', default=None)
2045
2046         m_music = re.search(
2047             r'''(?x)
2048                 <h4[^>]+class="title"[^>]*>\s*Music\s*</h4>\s*
2049                 <ul[^>]*>\s*
2050                 <li>(?P<title>.+?)
2051                 by (?P<creator>.+?)
2052                 (?:
2053                     \(.+?\)|
2054                     <a[^>]*
2055                         (?:
2056                             \bhref=["\']/red[^>]*>|             # drop possible
2057                             >\s*Listen ad-free with YouTube Red # YouTube Red ad
2058                         )
2059                     .*?
2060                 )?</li
2061             ''',
2062             video_webpage)
2063         if m_music:
2064             video_alt_title = remove_quotes(unescapeHTML(m_music.group('title')))
2065             video_creator = clean_html(m_music.group('creator'))
2066         else:
2067             video_alt_title = video_creator = None
2068
2069         def extract_meta(field):
2070             return self._html_search_regex(
2071                 r'<h4[^>]+class="title"[^>]*>\s*%s\s*</h4>\s*<ul[^>]*>\s*<li>(.+?)</li>\s*' % field,
2072                 video_webpage, field, default=None)
2073
2074         track = extract_meta('Song')
2075         artist = extract_meta('Artist')
2076
2077         m_episode = re.search(
2078             r'<div[^>]+id="watch7-headline"[^>]*>\s*<span[^>]*>.*?>(?P<series>[^<]+)</a></b>\s*S(?P<season>\d+)\s*•\s*E(?P<episode>\d+)</span>',
2079             video_webpage)
2080         if m_episode:
2081             series = unescapeHTML(m_episode.group('series'))
2082             season_number = int(m_episode.group('season'))
2083             episode_number = int(m_episode.group('episode'))
2084         else:
2085             series = season_number = episode_number = None
2086
2087         m_cat_container = self._search_regex(
2088             r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
2089             video_webpage, 'categories', default=None)
2090         if m_cat_container:
2091             category = self._html_search_regex(
2092                 r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
2093                 default=None)
2094             video_categories = None if category is None else [category]
2095         else:
2096             video_categories = None
2097
2098         video_tags = [
2099             unescapeHTML(m.group('content'))
2100             for m in re.finditer(self._meta_regex('og:video:tag'), video_webpage)]
2101
2102         def _extract_count(count_name):
2103             return str_to_int(self._search_regex(
2104                 r'-%s-button[^>]+><span[^>]+class="yt-uix-button-content"[^>]*>([\d,]+)</span>'
2105                 % re.escape(count_name),
2106                 video_webpage, count_name, default=None))
2107
2108         like_count = _extract_count('like')
2109         dislike_count = _extract_count('dislike')
2110
2111         if view_count is None:
2112             view_count = str_to_int(self._search_regex(
2113                 r'<[^>]+class=["\']watch-view-count[^>]+>\s*([\d,\s]+)', video_webpage,
2114                 'view count', default=None))
2115
2116         # subtitles
2117         video_subtitles = self.extract_subtitles(video_id, video_webpage)
2118         automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
2119
2120         video_duration = try_get(
2121             video_info, lambda x: int_or_none(x['length_seconds'][0]))
2122         if not video_duration:
2123             video_duration = int_or_none(video_details.get('lengthSeconds'))
2124         if not video_duration:
2125             video_duration = parse_duration(self._html_search_meta(
2126                 'duration', video_webpage, 'video duration'))
2127
2128         # annotations
2129         video_annotations = None
2130         if self._downloader.params.get('writeannotations', False):
2131             video_annotations = self._extract_annotations(video_id)
2132
2133         chapters = self._extract_chapters(description_original, video_duration)
2134
2135         # Look for the DASH manifest
2136         if self._downloader.params.get('youtube_include_dash_manifest', True):
2137             dash_mpd_fatal = True
2138             for mpd_url in dash_mpds:
2139                 dash_formats = {}
2140                 try:
2141                     def decrypt_sig(mobj):
2142                         s = mobj.group(1)
2143                         dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
2144                         return '/signature/%s' % dec_s
2145
2146                     mpd_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, mpd_url)
2147
2148                     for df in self._extract_mpd_formats(
2149                             mpd_url, video_id, fatal=dash_mpd_fatal,
2150                             formats_dict=self._formats):
2151                         if not df.get('filesize'):
2152                             df['filesize'] = _extract_filesize(df['url'])
2153                         # Do not overwrite DASH format found in some previous DASH manifest
2154                         if df['format_id'] not in dash_formats:
2155                             dash_formats[df['format_id']] = df
2156                         # Additional DASH manifests may end up in HTTP Error 403 therefore
2157                         # allow them to fail without bug report message if we already have
2158                         # some DASH manifest succeeded. This is temporary workaround to reduce
2159                         # burst of bug reports until we figure out the reason and whether it
2160                         # can be fixed at all.
2161                         dash_mpd_fatal = False
2162                 except (ExtractorError, KeyError) as e:
2163                     self.report_warning(
2164                         'Skipping DASH manifest: %r' % e, video_id)
2165                 if dash_formats:
2166                     # Remove the formats we found through non-DASH, they
2167                     # contain less info and it can be wrong, because we use
2168                     # fixed values (for example the resolution). See
2169                     # https://github.com/ytdl-org/youtube-dl/issues/5774 for an
2170                     # example.
2171                     formats = [f for f in formats if f['format_id'] not in dash_formats.keys()]
2172                     formats.extend(dash_formats.values())
2173
2174         # Check for malformed aspect ratio
2175         stretched_m = re.search(
2176             r'<meta\s+property="og:video:tag".*?content="yt:stretch=(?P<w>[0-9]+):(?P<h>[0-9]+)">',
2177             video_webpage)
2178         if stretched_m:
2179             w = float(stretched_m.group('w'))
2180             h = float(stretched_m.group('h'))
2181             # yt:stretch may hold invalid ratio data (e.g. for Q39EVAstoRM ratio is 17:0).
2182             # We will only process correct ratios.
2183             if w > 0 and h > 0:
2184                 ratio = w / h
2185                 for f in formats:
2186                     if f.get('vcodec') != 'none':
2187                         f['stretched_ratio'] = ratio
2188
2189         self._sort_formats(formats)
2190
2191         self.mark_watched(video_id, video_info, player_response)
2192
2193         return {
2194             'id': video_id,
2195             'uploader': video_uploader,
2196             'uploader_id': video_uploader_id,
2197             'uploader_url': video_uploader_url,
2198             'channel_id': channel_id,
2199             'channel_url': channel_url,
2200             'upload_date': upload_date,
2201             'license': video_license,
2202             'creator': video_creator or artist,
2203             'title': video_title,
2204             'alt_title': video_alt_title or track,
2205             'thumbnail': video_thumbnail,
2206             'description': video_description,
2207             'categories': video_categories,
2208             'tags': video_tags,
2209             'subtitles': video_subtitles,
2210             'automatic_captions': automatic_captions,
2211             'duration': video_duration,
2212             'age_limit': 18 if age_gate else 0,
2213             'annotations': video_annotations,
2214             'chapters': chapters,
2215             'webpage_url': proto + '://www.youtube.com/watch?v=%s' % video_id,
2216             'view_count': view_count,
2217             'like_count': like_count,
2218             'dislike_count': dislike_count,
2219             'average_rating': float_or_none(video_info.get('avg_rating', [None])[0]),
2220             'formats': formats,
2221             'is_live': is_live,
2222             'start_time': start_time,
2223             'end_time': end_time,
2224             'series': series,
2225             'season_number': season_number,
2226             'episode_number': episode_number,
2227             'track': track,
2228             'artist': artist,
2229         }
2230
2231
2232 class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
2233     IE_DESC = 'YouTube.com playlists'
2234     _VALID_URL = r"""(?x)(?:
2235                         (?:https?://)?
2236                         (?:\w+\.)?
2237                         (?:
2238                             (?:
2239                                 youtube\.com|
2240                                 invidio\.us
2241                             )
2242                             /
2243                             (?:
2244                                (?:course|view_play_list|my_playlists|artist|playlist|watch|embed/(?:videoseries|[0-9A-Za-z_-]{11}))
2245                                \? (?:.*?[&;])*? (?:p|a|list)=
2246                             |  p/
2247                             )|
2248                             youtu\.be/[0-9A-Za-z_-]{11}\?.*?\blist=
2249                         )
2250                         (
2251                             (?:PL|LL|EC|UU|FL|RD|UL|TL|OLAK5uy_)?[0-9A-Za-z-_]{10,}
2252                             # Top tracks, they can also include dots
2253                             |(?:MC)[\w\.]*
2254                         )
2255                         .*
2256                      |
2257                         (%(playlist_id)s)
2258                      )""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
2259     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
2260     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)(?:[^>]+>(?P<title>[^<]+))?'
2261     IE_NAME = 'youtube:playlist'
2262     _TESTS = [{
2263         'url': 'https://www.youtube.com/playlist?list=PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
2264         'info_dict': {
2265             'title': 'ytdl test PL',
2266             'id': 'PLwiyx1dc3P2JR9N8gQaQN_BCvlSlap7re',
2267         },
2268         'playlist_count': 3,
2269     }, {
2270         'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
2271         'info_dict': {
2272             'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
2273             'title': 'YDL_Empty_List',
2274         },
2275         'playlist_count': 0,
2276         'skip': 'This playlist is private',
2277     }, {
2278         'note': 'Playlist with deleted videos (#651). As a bonus, the video #51 is also twice in this list.',
2279         'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
2280         'info_dict': {
2281             'title': '29C3: Not my department',
2282             'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
2283         },
2284         'playlist_count': 95,
2285     }, {
2286         'note': 'issue #673',
2287         'url': 'PLBB231211A4F62143',
2288         'info_dict': {
2289             'title': '[OLD]Team Fortress 2 (Class-based LP)',
2290             'id': 'PLBB231211A4F62143',
2291         },
2292         'playlist_mincount': 26,
2293     }, {
2294         'note': 'Large playlist',
2295         'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
2296         'info_dict': {
2297             'title': 'Uploads from Cauchemar',
2298             'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q',
2299         },
2300         'playlist_mincount': 799,
2301     }, {
2302         'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
2303         'info_dict': {
2304             'title': 'YDL_safe_search',
2305             'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
2306         },
2307         'playlist_count': 2,
2308         'skip': 'This playlist is private',
2309     }, {
2310         'note': 'embedded',
2311         'url': 'https://www.youtube.com/embed/videoseries?list=PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
2312         'playlist_count': 4,
2313         'info_dict': {
2314             'title': 'JODA15',
2315             'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
2316         }
2317     }, {
2318         'url': 'http://www.youtube.com/embed/_xDOZElKyNU?list=PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
2319         'playlist_mincount': 485,
2320         'info_dict': {
2321             'title': '2017 華語最新單曲 (2/24更新)',
2322             'id': 'PLsyOSbh5bs16vubvKePAQ1x3PhKavfBIl',
2323         }
2324     }, {
2325         'note': 'Embedded SWF player',
2326         'url': 'https://www.youtube.com/p/YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ?hl=en_US&fs=1&rel=0',
2327         'playlist_count': 4,
2328         'info_dict': {
2329             'title': 'JODA7',
2330             'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ',
2331         }
2332     }, {
2333         'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
2334         'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
2335         'info_dict': {
2336             'title': 'Uploads from Interstellar Movie',
2337             'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
2338         },
2339         'playlist_mincount': 21,
2340     }, {
2341         # Playlist URL that does not actually serve a playlist
2342         'url': 'https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4',
2343         'info_dict': {
2344             'id': 'FqZTN594JQw',
2345             'ext': 'webm',
2346             'title': "Smiley's People 01 detective, Adventure Series, Action",
2347             'uploader': 'STREEM',
2348             'uploader_id': 'UCyPhqAZgwYWZfxElWVbVJng',
2349             'uploader_url': r're:https?://(?:www\.)?youtube\.com/channel/UCyPhqAZgwYWZfxElWVbVJng',
2350             'upload_date': '20150526',
2351             'license': 'Standard YouTube License',
2352             'description': 'md5:507cdcb5a49ac0da37a920ece610be80',
2353             'categories': ['People & Blogs'],
2354             'tags': list,
2355             'view_count': int,
2356             'like_count': int,
2357             'dislike_count': int,
2358         },
2359         'params': {
2360             'skip_download': True,
2361         },
2362         'add_ie': [YoutubeIE.ie_key()],
2363     }, {
2364         'url': 'https://youtu.be/yeWKywCrFtk?list=PL2qgrgXsNUG5ig9cat4ohreBjYLAPC0J5',
2365         'info_dict': {
2366             'id': 'yeWKywCrFtk',
2367             'ext': 'mp4',
2368             'title': 'Small Scale Baler and Braiding Rugs',
2369             'uploader': 'Backus-Page House Museum',
2370             'uploader_id': 'backuspagemuseum',
2371             'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/backuspagemuseum',
2372             'upload_date': '20161008',
2373             'license': 'Standard YouTube License',
2374             'description': 'md5:800c0c78d5eb128500bffd4f0b4f2e8a',
2375             'categories': ['Nonprofits & Activism'],
2376             'tags': list,
2377             'like_count': int,
2378             'dislike_count': int,
2379         },
2380         'params': {
2381             'noplaylist': True,
2382             'skip_download': True,
2383         },
2384     }, {
2385         'url': 'https://youtu.be/uWyaPkt-VOI?list=PL9D9FC436B881BA21',
2386         'only_matching': True,
2387     }, {
2388         'url': 'TLGGrESM50VT6acwMjAyMjAxNw',
2389         'only_matching': True,
2390     }, {
2391         # music album playlist
2392         'url': 'OLAK5uy_m4xAFdmMC5rX3Ji3g93pQe3hqLZw_9LhM',
2393         'only_matching': True,
2394     }, {
2395         'url': 'https://invidio.us/playlist?list=PLDIoUOhQQPlXr63I_vwF9GD8sAKh77dWU',
2396         'only_matching': True,
2397     }]
2398
2399     def _real_initialize(self):
2400         self._login()
2401
2402     def _extract_mix(self, playlist_id):
2403         # The mixes are generated from a single video
2404         # the id of the playlist is just 'RD' + video_id
2405         ids = []
2406         last_id = playlist_id[-11:]
2407         for n in itertools.count(1):
2408             url = 'https://youtube.com/watch?v=%s&list=%s' % (last_id, playlist_id)
2409             webpage = self._download_webpage(
2410                 url, playlist_id, 'Downloading page {0} of Youtube mix'.format(n))
2411             new_ids = orderedSet(re.findall(
2412                 r'''(?xs)data-video-username=".*?".*?
2413                            href="/watch\?v=([0-9A-Za-z_-]{11})&amp;[^"]*?list=%s''' % re.escape(playlist_id),
2414                 webpage))
2415             # Fetch new pages until all the videos are repeated, it seems that
2416             # there are always 51 unique videos.
2417             new_ids = [_id for _id in new_ids if _id not in ids]
2418             if not new_ids:
2419                 break
2420             ids.extend(new_ids)
2421             last_id = ids[-1]
2422
2423         url_results = self._ids_to_results(ids)
2424
2425         search_title = lambda class_name: get_element_by_attribute('class', class_name, webpage)
2426         title_span = (
2427             search_title('playlist-title') or
2428             search_title('title long-title') or
2429             search_title('title'))
2430         title = clean_html(title_span)
2431
2432         return self.playlist_result(url_results, playlist_id, title)
2433
2434     def _extract_playlist(self, playlist_id):
2435         url = self._TEMPLATE_URL % playlist_id
2436         page = self._download_webpage(url, playlist_id)
2437
2438         # the yt-alert-message now has tabindex attribute (see https://github.com/ytdl-org/youtube-dl/issues/11604)
2439         for match in re.findall(r'<div class="yt-alert-message"[^>]*>([^<]+)</div>', page):
2440             match = match.strip()
2441             # Check if the playlist exists or is private
2442             mobj = re.match(r'[^<]*(?:The|This) playlist (?P<reason>does not exist|is private)[^<]*', match)
2443             if mobj:
2444                 reason = mobj.group('reason')
2445                 message = 'This playlist %s' % reason
2446                 if 'private' in reason:
2447                     message += ', use --username or --netrc to access it'
2448                 message += '.'
2449                 raise ExtractorError(message, expected=True)
2450             elif re.match(r'[^<]*Invalid parameters[^<]*', match):
2451                 raise ExtractorError(
2452                     'Invalid parameters. Maybe URL is incorrect.',
2453                     expected=True)
2454             elif re.match(r'[^<]*Choose your language[^<]*', match):
2455                 continue
2456             else:
2457                 self.report_warning('Youtube gives an alert message: ' + match)
2458
2459         playlist_title = self._html_search_regex(
2460             r'(?s)<h1 class="pl-header-title[^"]*"[^>]*>\s*(.*?)\s*</h1>',
2461             page, 'title', default=None)
2462
2463         _UPLOADER_BASE = r'class=["\']pl-header-details[^>]+>\s*<li>\s*<a[^>]+\bhref='
2464         uploader = self._search_regex(
2465             r'%s["\']/(?:user|channel)/[^>]+>([^<]+)' % _UPLOADER_BASE,
2466             page, 'uploader', default=None)
2467         mobj = re.search(
2468             r'%s(["\'])(?P<path>/(?:user|channel)/(?P<uploader_id>.+?))\1' % _UPLOADER_BASE,
2469             page)
2470         if mobj:
2471             uploader_id = mobj.group('uploader_id')
2472             uploader_url = compat_urlparse.urljoin(url, mobj.group('path'))
2473         else:
2474             uploader_id = uploader_url = None
2475
2476         has_videos = True
2477
2478         if not playlist_title:
2479             try:
2480                 # Some playlist URLs don't actually serve a playlist (e.g.
2481                 # https://www.youtube.com/watch?v=FqZTN594JQw&list=PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4)
2482                 next(self._entries(page, playlist_id))
2483             except StopIteration:
2484                 has_videos = False
2485
2486         playlist = self.playlist_result(
2487             self._entries(page, playlist_id), playlist_id, playlist_title)
2488         playlist.update({
2489             'uploader': uploader,
2490             'uploader_id': uploader_id,
2491             'uploader_url': uploader_url,
2492         })
2493
2494         return has_videos, playlist
2495
2496     def _check_download_just_video(self, url, playlist_id):
2497         # Check if it's a video-specific URL
2498         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
2499         video_id = query_dict.get('v', [None])[0] or self._search_regex(
2500             r'(?:(?:^|//)youtu\.be/|youtube\.com/embed/(?!videoseries))([0-9A-Za-z_-]{11})', url,
2501             'video id', default=None)
2502         if video_id:
2503             if self._downloader.params.get('noplaylist'):
2504                 self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
2505                 return video_id, self.url_result(video_id, 'Youtube', video_id=video_id)
2506             else:
2507                 self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
2508                 return video_id, None
2509         return None, None
2510
2511     def _real_extract(self, url):
2512         # Extract playlist id
2513         mobj = re.match(self._VALID_URL, url)
2514         if mobj is None:
2515             raise ExtractorError('Invalid URL: %s' % url)
2516         playlist_id = mobj.group(1) or mobj.group(2)
2517
2518         video_id, video = self._check_download_just_video(url, playlist_id)
2519         if video:
2520             return video
2521
2522         if playlist_id.startswith(('RD', 'UL', 'PU')):
2523             # Mixes require a custom extraction process
2524             return self._extract_mix(playlist_id)
2525
2526         has_videos, playlist = self._extract_playlist(playlist_id)
2527         if has_videos or not video_id:
2528             return playlist
2529
2530         # Some playlist URLs don't actually serve a playlist (see
2531         # https://github.com/ytdl-org/youtube-dl/issues/10537).
2532         # Fallback to plain video extraction if there is a video id
2533         # along with playlist id.
2534         return self.url_result(video_id, 'Youtube', video_id=video_id)
2535
2536
2537 class YoutubeChannelIE(YoutubePlaylistBaseInfoExtractor):
2538     IE_DESC = 'YouTube.com channels'
2539     _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com|(?:www\.)?invidio\.us)/channel/(?P<id>[0-9A-Za-z_-]+)'
2540     _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos'
2541     _VIDEO_RE = r'(?:title="(?P<title>[^"]+)"[^>]+)?href="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?'
2542     IE_NAME = 'youtube:channel'
2543     _TESTS = [{
2544         'note': 'paginated channel',
2545         'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
2546         'playlist_mincount': 91,
2547         'info_dict': {
2548             'id': 'UUKfVa3S1e4PHvxWcwyMMg8w',
2549             'title': 'Uploads from lex will',
2550         }
2551     }, {
2552         'note': 'Age restricted channel',
2553         # from https://www.youtube.com/user/DeusExOfficial
2554         'url': 'https://www.youtube.com/channel/UCs0ifCMCm1icqRbqhUINa0w',
2555         'playlist_mincount': 64,
2556         'info_dict': {
2557             'id': 'UUs0ifCMCm1icqRbqhUINa0w',
2558             'title': 'Uploads from Deus Ex',
2559         },
2560     }, {
2561         'url': 'https://invidio.us/channel/UC23qupoDRn9YOAVzeoxjOQA',
2562         'only_matching': True,
2563     }]
2564
2565     @classmethod
2566     def suitable(cls, url):
2567         return (False if YoutubePlaylistsIE.suitable(url) or YoutubeLiveIE.suitable(url)
2568                 else super(YoutubeChannelIE, cls).suitable(url))
2569
2570     def _build_template_url(self, url, channel_id):
2571         return self._TEMPLATE_URL % channel_id
2572
2573     def _real_extract(self, url):
2574         channel_id = self._match_id(url)
2575
2576         url = self._build_template_url(url, channel_id)
2577
2578         # Channel by page listing is restricted to 35 pages of 30 items, i.e. 1050 videos total (see #5778)
2579         # Workaround by extracting as a playlist if managed to obtain channel playlist URL
2580         # otherwise fallback on channel by page extraction
2581         channel_page = self._download_webpage(
2582             url + '?view=57', channel_id,
2583             'Downloading channel page', fatal=False)
2584         if channel_page is False:
2585             channel_playlist_id = False
2586         else:
2587             channel_playlist_id = self._html_search_meta(
2588                 'channelId', channel_page, 'channel id', default=None)
2589             if not channel_playlist_id:
2590                 channel_url = self._html_search_meta(
2591                     ('al:ios:url', 'twitter:app:url:iphone', 'twitter:app:url:ipad'),
2592                     channel_page, 'channel url', default=None)
2593                 if channel_url:
2594                     channel_playlist_id = self._search_regex(
2595                         r'vnd\.youtube://user/([0-9A-Za-z_-]+)',
2596                         channel_url, 'channel id', default=None)
2597         if channel_playlist_id and channel_playlist_id.startswith('UC'):
2598             playlist_id = 'UU' + channel_playlist_id[2:]
2599             return self.url_result(
2600                 compat_urlparse.urljoin(url, '/playlist?list=%s' % playlist_id), 'YoutubePlaylist')
2601
2602         channel_page = self._download_webpage(url, channel_id, 'Downloading page #1')
2603         autogenerated = re.search(r'''(?x)
2604                 class="[^"]*?(?:
2605                     channel-header-autogenerated-label|
2606                     yt-channel-title-autogenerated
2607                 )[^"]*"''', channel_page) is not None
2608
2609         if autogenerated:
2610             # The videos are contained in a single page
2611             # the ajax pages can't be used, they are empty
2612             entries = [
2613                 self.url_result(
2614                     video_id, 'Youtube', video_id=video_id,
2615                     video_title=video_title)
2616                 for video_id, video_title in self.extract_videos_from_page(channel_page)]
2617             return self.playlist_result(entries, channel_id)
2618
2619         try:
2620             next(self._entries(channel_page, channel_id))
2621         except StopIteration:
2622             alert_message = self._html_search_regex(
2623                 r'(?s)<div[^>]+class=(["\']).*?\byt-alert-message\b.*?\1[^>]*>(?P<alert>[^<]+)</div>',
2624                 channel_page, 'alert', default=None, group='alert')
2625             if alert_message:
2626                 raise ExtractorError('Youtube said: %s' % alert_message, expected=True)
2627
2628         return self.playlist_result(self._entries(channel_page, channel_id), channel_id)
2629
2630
2631 class YoutubeUserIE(YoutubeChannelIE):
2632     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
2633     _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_-]+)'
2634     _TEMPLATE_URL = 'https://www.youtube.com/%s/%s/videos'
2635     IE_NAME = 'youtube:user'
2636
2637     _TESTS = [{
2638         'url': 'https://www.youtube.com/user/TheLinuxFoundation',
2639         'playlist_mincount': 320,
2640         'info_dict': {
2641             'id': 'UUfX55Sx5hEFjoC3cNs6mCUQ',
2642             'title': 'Uploads from The Linux Foundation',
2643         }
2644     }, {
2645         # Only available via https://www.youtube.com/c/12minuteathlete/videos
2646         # but not https://www.youtube.com/user/12minuteathlete/videos
2647         'url': 'https://www.youtube.com/c/12minuteathlete/videos',
2648         'playlist_mincount': 249,
2649         'info_dict': {
2650             'id': 'UUVjM-zV6_opMDx7WYxnjZiQ',
2651             'title': 'Uploads from 12 Minute Athlete',
2652         }
2653     }, {
2654         'url': 'ytuser:phihag',
2655         'only_matching': True,
2656     }, {
2657         'url': 'https://www.youtube.com/c/gametrailers',
2658         'only_matching': True,
2659     }, {
2660         'url': 'https://www.youtube.com/gametrailers',
2661         'only_matching': True,
2662     }, {
2663         # This channel is not available, geo restricted to JP
2664         'url': 'https://www.youtube.com/user/kananishinoSMEJ/videos',
2665         'only_matching': True,
2666     }]
2667
2668     @classmethod
2669     def suitable(cls, url):
2670         # Don't return True if the url can be extracted with other youtube
2671         # extractor, the regex would is too permissive and it would match.
2672         other_yt_ies = iter(klass for (name, klass) in globals().items() if name.startswith('Youtube') and name.endswith('IE') and klass is not cls)
2673         if any(ie.suitable(url) for ie in other_yt_ies):
2674             return False
2675         else:
2676             return super(YoutubeUserIE, cls).suitable(url)
2677
2678     def _build_template_url(self, url, channel_id):
2679         mobj = re.match(self._VALID_URL, url)
2680         return self._TEMPLATE_URL % (mobj.group('user') or 'user', mobj.group('id'))
2681
2682
2683 class YoutubeLiveIE(YoutubeBaseInfoExtractor):
2684     IE_DESC = 'YouTube.com live streams'
2685     _VALID_URL = r'(?P<base_url>https?://(?:\w+\.)?youtube\.com/(?:(?:user|channel|c)/)?(?P<id>[^/]+))/live'
2686     IE_NAME = 'youtube:live'
2687
2688     _TESTS = [{
2689         'url': 'https://www.youtube.com/user/TheYoungTurks/live',
2690         'info_dict': {
2691             'id': 'a48o2S1cPoo',
2692             'ext': 'mp4',
2693             'title': 'The Young Turks - Live Main Show',
2694             'uploader': 'The Young Turks',
2695             'uploader_id': 'TheYoungTurks',
2696             'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/TheYoungTurks',
2697             'upload_date': '20150715',
2698             'license': 'Standard YouTube License',
2699             'description': 'md5:438179573adcdff3c97ebb1ee632b891',
2700             'categories': ['News & Politics'],
2701             'tags': ['Cenk Uygur (TV Program Creator)', 'The Young Turks (Award-Winning Work)', 'Talk Show (TV Genre)'],
2702             'like_count': int,
2703             'dislike_count': int,
2704         },
2705         'params': {
2706             'skip_download': True,
2707         },
2708     }, {
2709         'url': 'https://www.youtube.com/channel/UC1yBKRuGpC1tSM73A0ZjYjQ/live',
2710         'only_matching': True,
2711     }, {
2712         'url': 'https://www.youtube.com/c/CommanderVideoHq/live',
2713         'only_matching': True,
2714     }, {
2715         'url': 'https://www.youtube.com/TheYoungTurks/live',
2716         'only_matching': True,
2717     }]
2718
2719     def _real_extract(self, url):
2720         mobj = re.match(self._VALID_URL, url)
2721         channel_id = mobj.group('id')
2722         base_url = mobj.group('base_url')
2723         webpage = self._download_webpage(url, channel_id, fatal=False)
2724         if webpage:
2725             page_type = self._og_search_property(
2726                 'type', webpage, 'page type', default='')
2727             video_id = self._html_search_meta(
2728                 'videoId', webpage, 'video id', default=None)
2729             if page_type.startswith('video') and video_id and re.match(
2730                     r'^[0-9A-Za-z_-]{11}$', video_id):
2731                 return self.url_result(video_id, YoutubeIE.ie_key())
2732         return self.url_result(base_url)
2733
2734
2735 class YoutubePlaylistsIE(YoutubePlaylistsBaseInfoExtractor):
2736     IE_DESC = 'YouTube.com user/channel playlists'
2737     _VALID_URL = r'https?://(?:\w+\.)?youtube\.com/(?:user|channel)/(?P<id>[^/]+)/playlists'
2738     IE_NAME = 'youtube:playlists'
2739
2740     _TESTS = [{
2741         'url': 'https://www.youtube.com/user/ThirstForScience/playlists',
2742         'playlist_mincount': 4,
2743         'info_dict': {
2744             'id': 'ThirstForScience',
2745             'title': 'Thirst for Science',
2746         },
2747     }, {
2748         # with "Load more" button
2749         'url': 'https://www.youtube.com/user/igorkle1/playlists?view=1&sort=dd',
2750         'playlist_mincount': 70,
2751         'info_dict': {
2752             'id': 'igorkle1',
2753             'title': 'Игорь Клейнер',
2754         },
2755     }, {
2756         'url': 'https://www.youtube.com/channel/UCiU1dHvZObB2iP6xkJ__Icw/playlists',
2757         'playlist_mincount': 17,
2758         'info_dict': {
2759             'id': 'UCiU1dHvZObB2iP6xkJ__Icw',
2760             'title': 'Chem Player',
2761         },
2762     }]
2763
2764
2765 class YoutubeSearchBaseInfoExtractor(YoutubePlaylistBaseInfoExtractor):
2766     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})(?:[^"]*"[^>]+\btitle="(?P<title>[^"]+))?'
2767
2768
2769 class YoutubeSearchIE(SearchInfoExtractor, YoutubeSearchBaseInfoExtractor):
2770     IE_DESC = 'YouTube.com searches'
2771     # there doesn't appear to be a real limit, for example if you search for
2772     # 'python' you get more than 8.000.000 results
2773     _MAX_RESULTS = float('inf')
2774     IE_NAME = 'youtube:search'
2775     _SEARCH_KEY = 'ytsearch'
2776     _EXTRA_QUERY_ARGS = {}
2777     _TESTS = []
2778
2779     def _get_n_results(self, query, n):
2780         """Get a specified number of results for a query"""
2781
2782         videos = []
2783         limit = n
2784
2785         url_query = {
2786             'search_query': query.encode('utf-8'),
2787         }
2788         url_query.update(self._EXTRA_QUERY_ARGS)
2789         result_url = 'https://www.youtube.com/results?' + compat_urllib_parse_urlencode(url_query)
2790
2791         for pagenum in itertools.count(1):
2792             data = self._download_json(
2793                 result_url, video_id='query "%s"' % query,
2794                 note='Downloading page %s' % pagenum,
2795                 errnote='Unable to download API page',
2796                 query={'spf': 'navigate'})
2797             html_content = data[1]['body']['content']
2798
2799             if 'class="search-message' in html_content:
2800                 raise ExtractorError(
2801                     '[youtube] No video results', expected=True)
2802
2803             new_videos = list(self._process_page(html_content))
2804             videos += new_videos
2805             if not new_videos or len(videos) > limit:
2806                 break
2807             next_link = self._html_search_regex(
2808                 r'href="(/results\?[^"]*\bsp=[^"]+)"[^>]*>\s*<span[^>]+class="[^"]*\byt-uix-button-content\b[^"]*"[^>]*>Next',
2809                 html_content, 'next link', default=None)
2810             if next_link is None:
2811                 break
2812             result_url = compat_urlparse.urljoin('https://www.youtube.com/', next_link)
2813
2814         if len(videos) > n:
2815             videos = videos[:n]
2816         return self.playlist_result(videos, query)
2817
2818
2819 class YoutubeSearchDateIE(YoutubeSearchIE):
2820     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
2821     _SEARCH_KEY = 'ytsearchdate'
2822     IE_DESC = 'YouTube.com searches, newest videos first'
2823     _EXTRA_QUERY_ARGS = {'search_sort': 'video_date_uploaded'}
2824
2825
2826 class YoutubeSearchURLIE(YoutubeSearchBaseInfoExtractor):
2827     IE_DESC = 'YouTube.com search URLs'
2828     IE_NAME = 'youtube:search_url'
2829     _VALID_URL = r'https?://(?:www\.)?youtube\.com/results\?(.*?&)?(?:search_query|q)=(?P<query>[^&]+)(?:[&]|$)'
2830     _TESTS = [{
2831         'url': 'https://www.youtube.com/results?baz=bar&search_query=youtube-dl+test+video&filters=video&lclk=video',
2832         'playlist_mincount': 5,
2833         'info_dict': {
2834             'title': 'youtube-dl test video',
2835         }
2836     }, {
2837         'url': 'https://www.youtube.com/results?q=test&sp=EgQIBBgB',
2838         'only_matching': True,
2839     }]
2840
2841     def _real_extract(self, url):
2842         mobj = re.match(self._VALID_URL, url)
2843         query = compat_urllib_parse_unquote_plus(mobj.group('query'))
2844         webpage = self._download_webpage(url, query)
2845         return self.playlist_result(self._process_page(webpage), playlist_title=query)
2846
2847
2848 class YoutubeShowIE(YoutubePlaylistsBaseInfoExtractor):
2849     IE_DESC = 'YouTube.com (multi-season) shows'
2850     _VALID_URL = r'https?://(?:www\.)?youtube\.com/show/(?P<id>[^?#]*)'
2851     IE_NAME = 'youtube:show'
2852     _TESTS = [{
2853         'url': 'https://www.youtube.com/show/airdisasters',
2854         'playlist_mincount': 5,
2855         'info_dict': {
2856             'id': 'airdisasters',
2857             'title': 'Air Disasters',
2858         }
2859     }]
2860
2861     def _real_extract(self, url):
2862         playlist_id = self._match_id(url)
2863         return super(YoutubeShowIE, self)._real_extract(
2864             'https://www.youtube.com/show/%s/playlists' % playlist_id)
2865
2866
2867 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
2868     """
2869     Base class for feed extractors
2870     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
2871     """
2872     _LOGIN_REQUIRED = True
2873
2874     @property
2875     def IE_NAME(self):
2876         return 'youtube:%s' % self._FEED_NAME
2877
2878     def _real_initialize(self):
2879         self._login()
2880
2881     def _entries(self, page):
2882         # The extraction process is the same as for playlists, but the regex
2883         # for the video ids doesn't contain an index
2884         ids = []
2885         more_widget_html = content_html = page
2886         for page_num in itertools.count(1):
2887             matches = re.findall(r'href="\s*/watch\?v=([0-9A-Za-z_-]{11})', content_html)
2888
2889             # 'recommended' feed has infinite 'load more' and each new portion spins
2890             # the same videos in (sometimes) slightly different order, so we'll check
2891             # for unicity and break when portion has no new videos
2892             new_ids = list(filter(lambda video_id: video_id not in ids, orderedSet(matches)))
2893             if not new_ids:
2894                 break
2895
2896             ids.extend(new_ids)
2897
2898             for entry in self._ids_to_results(new_ids):
2899                 yield entry
2900
2901             mobj = re.search(r'data-uix-load-more-href="/?(?P<more>[^"]+)"', more_widget_html)
2902             if not mobj:
2903                 break
2904
2905             more = self._download_json(
2906                 'https://youtube.com/%s' % mobj.group('more'), self._PLAYLIST_TITLE,
2907                 'Downloading page #%s' % page_num,
2908                 transform_source=uppercase_escape)
2909             content_html = more['content_html']
2910             more_widget_html = more['load_more_widget_html']
2911
2912     def _real_extract(self, url):
2913         page = self._download_webpage(
2914             'https://www.youtube.com/feed/%s' % self._FEED_NAME,
2915             self._PLAYLIST_TITLE)
2916         return self.playlist_result(
2917             self._entries(page), playlist_title=self._PLAYLIST_TITLE)
2918
2919
2920 class YoutubeWatchLaterIE(YoutubePlaylistIE):
2921     IE_NAME = 'youtube:watchlater'
2922     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
2923     _VALID_URL = r'https?://(?:www\.)?youtube\.com/(?:feed/watch_later|(?:playlist|watch)\?(?:.+&)?list=WL)|:ytwatchlater'
2924
2925     _TESTS = [{
2926         'url': 'https://www.youtube.com/playlist?list=WL',
2927         'only_matching': True,
2928     }, {
2929         'url': 'https://www.youtube.com/watch?v=bCNU9TrbiRk&index=1&list=WL',
2930         'only_matching': True,
2931     }]
2932
2933     def _real_extract(self, url):
2934         _, video = self._check_download_just_video(url, 'WL')
2935         if video:
2936             return video
2937         _, playlist = self._extract_playlist('WL')
2938         return playlist
2939
2940
2941 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
2942     IE_NAME = 'youtube:favorites'
2943     IE_DESC = 'YouTube.com favourite videos, ":ytfav" for short (requires authentication)'
2944     _VALID_URL = r'https?://(?:www\.)?youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
2945     _LOGIN_REQUIRED = True
2946
2947     def _real_extract(self, url):
2948         webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
2949         playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, 'favourites playlist id')
2950         return self.url_result(playlist_id, 'YoutubePlaylist')
2951
2952
2953 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
2954     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
2955     _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/recommended|:ytrec(?:ommended)?'
2956     _FEED_NAME = 'recommended'
2957     _PLAYLIST_TITLE = 'Youtube Recommended videos'
2958
2959
2960 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
2961     IE_DESC = 'YouTube.com subscriptions feed, "ytsubs" keyword (requires authentication)'
2962     _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
2963     _FEED_NAME = 'subscriptions'
2964     _PLAYLIST_TITLE = 'Youtube Subscriptions'
2965
2966
2967 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
2968     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
2969     _VALID_URL = r'https?://(?:www\.)?youtube\.com/feed/history|:ythistory'
2970     _FEED_NAME = 'history'
2971     _PLAYLIST_TITLE = 'Youtube History'
2972
2973
2974 class YoutubeTruncatedURLIE(InfoExtractor):
2975     IE_NAME = 'youtube:truncated_url'
2976     IE_DESC = False  # Do not list
2977     _VALID_URL = r'''(?x)
2978         (?:https?://)?
2979         (?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/
2980         (?:watch\?(?:
2981             feature=[a-z_]+|
2982             annotation_id=annotation_[^&]+|
2983             x-yt-cl=[0-9]+|
2984             hl=[^&]*|
2985             t=[0-9]+
2986         )?
2987         |
2988             attribution_link\?a=[^&]+
2989         )
2990         $
2991     '''
2992
2993     _TESTS = [{
2994         'url': 'https://www.youtube.com/watch?annotation_id=annotation_3951667041',
2995         'only_matching': True,
2996     }, {
2997         'url': 'https://www.youtube.com/watch?',
2998         'only_matching': True,
2999     }, {
3000         'url': 'https://www.youtube.com/watch?x-yt-cl=84503534',
3001         'only_matching': True,
3002     }, {
3003         'url': 'https://www.youtube.com/watch?feature=foo',
3004         'only_matching': True,
3005     }, {
3006         'url': 'https://www.youtube.com/watch?hl=en-GB',
3007         'only_matching': True,
3008     }, {
3009         'url': 'https://www.youtube.com/watch?t=2372',
3010         'only_matching': True,
3011     }]
3012
3013     def _real_extract(self, url):
3014         raise ExtractorError(
3015             'Did you forget to quote the URL? Remember that & is a meta '
3016             'character in most shells, so you want to put the URL in quotes, '
3017             'like  youtube-dl '
3018             '"https://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
3019             ' or simply  youtube-dl BaW_jenozKc  .',
3020             expected=True)
3021
3022
3023 class YoutubeTruncatedIDIE(InfoExtractor):
3024     IE_NAME = 'youtube:truncated_id'
3025     IE_DESC = False  # Do not list
3026     _VALID_URL = r'https?://(?:www\.)?youtube\.com/watch\?v=(?P<id>[0-9A-Za-z_-]{1,10})$'
3027
3028     _TESTS = [{
3029         'url': 'https://www.youtube.com/watch?v=N_708QY7Ob',
3030         'only_matching': True,
3031     }]
3032
3033     def _real_extract(self, url):
3034         video_id = self._match_id(url)
3035         raise ExtractorError(
3036             'Incomplete YouTube ID %s. URL %s looks truncated.' % (video_id, url),
3037             expected=True)