Initiate new release.

[youtubedl] / youtube_dl / extractor / youtube.py

diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 908defecd3f24ef4070c46f6e8d195aea625ab4b..1bc79e01478445ede9a2b3a0f1d4ebea38ce7534 100644 (file)
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -70,9 +70,14 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
 
     _PLAYLIST_ID_RE = r'(?:PL|LL|EC|UU|FL|RD|UL|TL|PU|OLAK5uy_)[0-9A-Za-z-_]{10,}'
 
 
     _PLAYLIST_ID_RE = r'(?:PL|LL|EC|UU|FL|RD|UL|TL|PU|OLAK5uy_)[0-9A-Za-z-_]{10,}'
 

+    _YOUTUBE_CLIENT_HEADERS = {
+        'x-youtube-client-name': '1',
+        'x-youtube-client-version': '1.20200609.04.02',
+    }
+

     def _set_language(self):
         self._set_cookie(
     def _set_language(self):
         self._set_cookie(

-            '.youtube.com', 'PREF', 'f1=50000000&hl=en',
+            '.youtube.com', 'PREF', 'f1=50000000&f6=8&hl=en',

             # YouTube sets the expire time to about two months
             expire_time=time.time() + 2 * 30 * 24 * 3600)
 
             # YouTube sets the expire time to about two months
             expire_time=time.time() + 2 * 30 * 24 * 3600)
 


@@ -301,7 +306,8 @@ class YoutubeEntryListBaseInfoExtractor(YoutubeBaseInfoExtractor):
                         'https://youtube.com/%s' % mobj.group('more'), playlist_id,
                         'Downloading page #%s%s'
                         % (page_num, ' (retry #%d)' % count if count else ''),
                         'https://youtube.com/%s' % mobj.group('more'), playlist_id,
                         'Downloading page #%s%s'
                         % (page_num, ' (retry #%d)' % count if count else ''),

-                        transform_source=uppercase_escape)
+                        transform_source=uppercase_escape,
+                        headers=self._YOUTUBE_CLIENT_HEADERS)

                     break
                 except ExtractorError as e:
                     if isinstance(e.cause, compat_HTTPError) and e.cause.code in (500, 503):
                     break
                 except ExtractorError as e:
                     if isinstance(e.cause, compat_HTTPError) and e.cause.code in (500, 503):


@@ -388,8 +394,15 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                             (?:www\.)?invidious\.drycat\.fr/|
                             (?:www\.)?tube\.poal\.co/|
                             (?:www\.)?vid\.wxzm\.sx/|
                             (?:www\.)?invidious\.drycat\.fr/|
                             (?:www\.)?tube\.poal\.co/|
                             (?:www\.)?vid\.wxzm\.sx/|

+                            (?:www\.)?yewtu\.be/|

                             (?:www\.)?yt\.elukerio\.org/|
                             (?:www\.)?yt\.lelux\.fi/|
                             (?:www\.)?yt\.elukerio\.org/|
                             (?:www\.)?yt\.lelux\.fi/|

+                            (?:www\.)?invidious\.ggc-project\.de/|
+                            (?:www\.)?yt\.maisputain\.ovh/|
+                            (?:www\.)?invidious\.13ad\.de/|
+                            (?:www\.)?invidious\.toot\.koeln/|
+                            (?:www\.)?invidious\.fdn\.fr/|
+                            (?:www\.)?watch\.nettohikari\.com/|

                             (?:www\.)?kgg2m7yk5aybusll\.onion/|
                             (?:www\.)?qklhadlycap4cnod\.onion/|
                             (?:www\.)?axqzx4s6s54s32yentfqojs3x5i7faxza6xo3ehd4bzzsg2ii4fv2iid\.onion/|
                             (?:www\.)?kgg2m7yk5aybusll\.onion/|
                             (?:www\.)?qklhadlycap4cnod\.onion/|
                             (?:www\.)?axqzx4s6s54s32yentfqojs3x5i7faxza6xo3ehd4bzzsg2ii4fv2iid\.onion/|


@@ -397,6 +410,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                             (?:www\.)?fz253lmuao3strwbfbmx46yu7acac2jz27iwtorgmbqlkurlclmancad\.onion/|
                             (?:www\.)?invidious\.l4qlywnpwqsluw65ts7md3khrivpirse744un3x7mlskqauz5pyuzgqd\.onion/|
                             (?:www\.)?owxfohz4kjyv25fvlqilyxast7inivgiktls3th44jhk3ej3i7ya\.b32\.i2p/|
                             (?:www\.)?fz253lmuao3strwbfbmx46yu7acac2jz27iwtorgmbqlkurlclmancad\.onion/|
                             (?:www\.)?invidious\.l4qlywnpwqsluw65ts7md3khrivpirse744un3x7mlskqauz5pyuzgqd\.onion/|
                             (?:www\.)?owxfohz4kjyv25fvlqilyxast7inivgiktls3th44jhk3ej3i7ya\.b32\.i2p/|

+                            (?:www\.)?4l2dgddgsrkf2ous66i6seeyi6etzfgrue332grh2n7madpwopotugyd\.onion/|

                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
                          (?:                                                  # the various things that can precede the ID:
                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
                          (?:                                                  # the various things that can precede the ID:


@@ -426,6 +440,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                      (?(1).+)?                                                # if we found the ID, everything can follow
                      $""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
                      (?(1).+)?                                                # if we found the ID, everything can follow
                      $""" % {'playlist_id': YoutubeBaseInfoExtractor._PLAYLIST_ID_RE}
     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'

+    _PLAYER_INFO_RE = (
+        r'/(?P<id>[a-zA-Z0-9_-]{8,})/player_ias\.vflset(?:/[a-zA-Z]{2,3}_[a-zA-Z]{2,3})?/base\.(?P<ext>[a-z]+)$',
+        r'\b(?P<id>vfl[a-zA-Z0-9_-]+)\b.*?\.(?P<ext>[a-z]+)$',
+    )

     _formats = {
         '5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
         '6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
     _formats = {
         '5': {'ext': 'flv', 'width': 400, 'height': 240, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},
         '6': {'ext': 'flv', 'width': 450, 'height': 270, 'acodec': 'mp3', 'abr': 64, 'vcodec': 'h263'},


@@ -1227,6 +1245,26 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             'url': 'https://www.youtubekids.com/watch?v=3b8nCWDgZ6Q',
             'only_matching': True,
         },
             'url': 'https://www.youtubekids.com/watch?v=3b8nCWDgZ6Q',
             'only_matching': True,
         },

+        {
+            # invalid -> valid video id redirection
+            'url': 'DJztXj2GPfl',
+            'info_dict': {
+                'id': 'DJztXj2GPfk',
+                'ext': 'mp4',
+                'title': 'Panjabi MC - Mundian To Bach Ke (The Dictator Soundtrack)',
+                'description': 'md5:bf577a41da97918e94fa9798d9228825',
+                'upload_date': '20090125',
+                'uploader': 'Prochorowka',
+                'uploader_id': 'Prochorowka',
+                'uploader_url': r're:https?://(?:www\.)?youtube\.com/user/Prochorowka',
+                'artist': 'Panjabi MC',
+                'track': 'Beware of the Boys (Mundian to Bach Ke) - Motivo Hi-Lectro Remix',
+                'album': 'Beware of the Boys (Mundian To Bach Ke)',
+            },
+            'params': {
+                'skip_download': True,
+            },
+        }

     ]
 
     def __init__(self, *args, **kwargs):
     ]
 
     def __init__(self, *args, **kwargs):


@@ -1253,14 +1291,18 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         """ Return a string representation of a signature """
         return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
 
         """ Return a string representation of a signature """
         return '.'.join(compat_str(len(part)) for part in example_sig.split('.'))
 

-    def _extract_signature_function(self, video_id, player_url, example_sig):
-        id_m = re.match(
-            r'.*?[-.](?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player(?:-new)?|(?:/[a-z]{2,3}_[A-Z]{2})?/base)?\.(?P<ext>[a-z]+)$',
-            player_url)
-        if not id_m:
+    @classmethod
+    def _extract_player_info(cls, player_url):
+        for player_re in cls._PLAYER_INFO_RE:
+            id_m = re.search(player_re, player_url)
+            if id_m:
+                break
+        else:

             raise ExtractorError('Cannot identify player %r' % player_url)
             raise ExtractorError('Cannot identify player %r' % player_url)

-        player_type = id_m.group('ext')
-        player_id = id_m.group('id')
+        return id_m.group('ext'), id_m.group('id')
+
+    def _extract_signature_function(self, video_id, player_url, example_sig):
+        player_type, player_id = self._extract_player_info(player_url)

 
         # Read from filesystem cache
         func_id = '%s_%s_%s' % (
 
         # Read from filesystem cache
         func_id = '%s_%s_%s' % (


@@ -1616,8 +1658,63 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         video_id = mobj.group(2)
         return video_id
 
         video_id = mobj.group(2)
         return video_id
 

+    def _extract_chapters_from_json(self, webpage, video_id, duration):
+        if not webpage:
+            return
+        player = self._parse_json(
+            self._search_regex(
+                r'RELATED_PLAYER_ARGS["\']\s*:\s*({.+})\s*,?\s*\n', webpage,
+                'player args', default='{}'),
+            video_id, fatal=False)
+        if not player or not isinstance(player, dict):
+            return
+        watch_next_response = player.get('watch_next_response')
+        if not isinstance(watch_next_response, compat_str):
+            return
+        response = self._parse_json(watch_next_response, video_id, fatal=False)
+        if not response or not isinstance(response, dict):
+            return
+        chapters_list = try_get(
+            response,
+            lambda x: x['playerOverlays']
+                       ['playerOverlayRenderer']
+                       ['decoratedPlayerBarRenderer']
+                       ['decoratedPlayerBarRenderer']
+                       ['playerBar']
+                       ['chapteredPlayerBarRenderer']
+                       ['chapters'],
+            list)
+        if not chapters_list:
+            return
+
+        def chapter_time(chapter):
+            return float_or_none(
+                try_get(
+                    chapter,
+                    lambda x: x['chapterRenderer']['timeRangeStartMillis'],
+                    int),
+                scale=1000)
+        chapters = []
+        for next_num, chapter in enumerate(chapters_list, start=1):
+            start_time = chapter_time(chapter)
+            if start_time is None:
+                continue
+            end_time = (chapter_time(chapters_list[next_num])
+                        if next_num < len(chapters_list) else duration)
+            if end_time is None:
+                continue
+            title = try_get(
+                chapter, lambda x: x['chapterRenderer']['title']['simpleText'],
+                compat_str)
+            chapters.append({
+                'start_time': start_time,
+                'end_time': end_time,
+                'title': title,
+            })
+        return chapters
+

     @staticmethod
     @staticmethod

-    def _extract_chapters(description, duration):
+    def _extract_chapters_from_description(description, duration):

         if not description:
             return None
         chapter_lines = re.findall(
         if not description:
             return None
         chapter_lines = re.findall(


@@ -1651,6 +1748,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             })
         return chapters
 
             })
         return chapters
 

+    def _extract_chapters(self, webpage, description, video_id, duration):
+        return (self._extract_chapters_from_json(webpage, video_id, duration)
+                or self._extract_chapters_from_description(description, duration))
+

     def _real_extract(self, url):
         url, smuggled_data = unsmuggle_url(url, {})
 
     def _real_extract(self, url):
         url, smuggled_data = unsmuggle_url(url, {})
 


@@ -1678,7 +1779,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
 
         # Get video webpage
         url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id
 
         # Get video webpage
         url = proto + '://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1&bpctr=9999999999' % video_id

-        video_webpage = self._download_webpage(url, video_id)
+        video_webpage, urlh = self._download_webpage_handle(url, video_id)
+
+        qs = compat_parse_qs(compat_urllib_parse_urlparse(urlh.geturl()).query)
+        video_id = qs.get('v', [None])[0] or video_id

 
         # Attempt to extract SWF player URL
         mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
 
         # Attempt to extract SWF player URL
         mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)


@@ -1794,6 +1898,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         video_details = try_get(
             player_response, lambda x: x['videoDetails'], dict) or {}
 
         video_details = try_get(
             player_response, lambda x: x['videoDetails'], dict) or {}
 

+        microformat = try_get(
+            player_response, lambda x: x['microformat']['playerMicroformatRenderer'], dict) or {}
+

         video_title = video_info.get('title', [None])[0] or video_details.get('title')
         if not video_title:
             self._downloader.report_warning('Unable to extract video title')
         video_title = video_info.get('title', [None])[0] or video_details.get('title')
         if not video_title:
             self._downloader.report_warning('Unable to extract video title')


@@ -1840,15 +1947,26 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                         # fields may contain comma as well (see
                         # https://github.com/ytdl-org/youtube-dl/issues/8536)
                         feed_data = compat_parse_qs(compat_urllib_parse_unquote_plus(feed))
                         # fields may contain comma as well (see
                         # https://github.com/ytdl-org/youtube-dl/issues/8536)
                         feed_data = compat_parse_qs(compat_urllib_parse_unquote_plus(feed))

+
+                        def feed_entry(name):
+                            return try_get(feed_data, lambda x: x[name][0], compat_str)
+
+                        feed_id = feed_entry('id')
+                        if not feed_id:
+                            continue
+                        feed_title = feed_entry('title')
+                        title = video_title
+                        if feed_title:
+                            title += ' (%s)' % feed_title

                         entries.append({
                             '_type': 'url_transparent',
                             'ie_key': 'Youtube',
                             'url': smuggle_url(
                                 '%s://www.youtube.com/watch?v=%s' % (proto, feed_data['id'][0]),
                                 {'force_singlefeed': True}),
                         entries.append({
                             '_type': 'url_transparent',
                             'ie_key': 'Youtube',
                             'url': smuggle_url(
                                 '%s://www.youtube.com/watch?v=%s' % (proto, feed_data['id'][0]),
                                 {'force_singlefeed': True}),

-                            'title': '%s (%s)' % (video_title, feed_data['title'][0]),
+                            'title': title,

                         })
                         })

-                        feed_ids.append(feed_data['id'][0])
+                        feed_ids.append(feed_id)

                     self.to_screen(
                         'Downloading multifeed video (%s) - add --no-playlist to just download video %s'
                         % (', '.join(feed_ids), video_id))
                     self.to_screen(
                         'Downloading multifeed video (%s) - add --no-playlist to just download video %s'
                         % (', '.join(feed_ids), video_id))


@@ -1860,6 +1978,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             view_count = extract_view_count(video_info)
         if view_count is None and video_details:
             view_count = int_or_none(video_details.get('viewCount'))
             view_count = extract_view_count(video_info)
         if view_count is None and video_details:
             view_count = int_or_none(video_details.get('viewCount'))

+        if view_count is None and microformat:
+            view_count = int_or_none(microformat.get('viewCount'))

 
         if is_live is None:
             is_live = bool_or_none(video_details.get('isLive'))
 
         if is_live is None:
             is_live = bool_or_none(video_details.get('isLive'))


@@ -1919,12 +2039,12 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 }
 
             for fmt in streaming_formats:
                 }
 
             for fmt in streaming_formats:

-                if fmt.get('drm_families'):
+                if fmt.get('drmFamilies') or fmt.get('drm_families'):

                     continue
                 url = url_or_none(fmt.get('url'))
 
                 if not url:
                     continue
                 url = url_or_none(fmt.get('url'))
 
                 if not url:

-                    cipher = fmt.get('cipher')
+                    cipher = fmt.get('cipher') or fmt.get('signatureCipher')

                     if not cipher:
                         continue
                     url_data = compat_parse_qs(cipher)
                     if not cipher:
                         continue
                     url_data = compat_parse_qs(cipher)


@@ -1975,22 +2095,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
 
                         if self._downloader.params.get('verbose'):
                             if player_url is None:
 
                         if self._downloader.params.get('verbose'):
                             if player_url is None:

-                                player_version = 'unknown'

                                 player_desc = 'unknown'
                             else:
                                 player_desc = 'unknown'
                             else:

-                                if player_url.endswith('swf'):
-                                    player_version = self._search_regex(
-                                        r'-(.+?)(?:/watch_as3)?\.swf$', player_url,
-                                        'flash player', fatal=False)
-                                    player_desc = 'flash player %s' % player_version
-                                else:
-                                    player_version = self._search_regex(
-                                        [r'html5player-([^/]+?)(?:/html5player(?:-new)?)?\.js',
-                                         r'(?:www|player(?:_ias)?)[-.]([^/]+)(?:/[a-z]{2,3}_[A-Z]{2})?/base\.js'],
-                                        player_url,
-                                        'html5 player', fatal=False)
-                                    player_desc = 'html5 player %s' % player_version
-
+                                player_type, player_version = self._extract_player_info(player_url)
+                                player_desc = '%s player %s' % ('flash' if player_type == 'swf' else 'html5', player_version)

                             parts_sizes = self._signature_cache_id(encrypted_sig)
                             self.to_screen('{%s} signature length %s, %s' %
                                            (format_id, parts_sizes, player_desc))
                             parts_sizes = self._signature_cache_id(encrypted_sig)
                             self.to_screen('{%s} signature length %s, %s' %
                                            (format_id, parts_sizes, player_desc))


@@ -2123,7 +2231,12 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             video_uploader_id = mobj.group('uploader_id')
             video_uploader_url = mobj.group('uploader_url')
         else:
             video_uploader_id = mobj.group('uploader_id')
             video_uploader_url = mobj.group('uploader_url')
         else:

-            self._downloader.report_warning('unable to extract uploader nickname')
+            owner_profile_url = url_or_none(microformat.get('ownerProfileUrl'))
+            if owner_profile_url:
+                video_uploader_id = self._search_regex(
+                    r'(?:user|channel)/([^/]+)', owner_profile_url, 'uploader id',
+                    default=None)
+                video_uploader_url = owner_profile_url

 
         channel_id = (
             str_or_none(video_details.get('channelId'))
 
         channel_id = (
             str_or_none(video_details.get('channelId'))


@@ -2134,17 +2247,33 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 video_webpage, 'channel id', default=None, group='id'))
         channel_url = 'http://www.youtube.com/channel/%s' % channel_id if channel_id else None
 
                 video_webpage, 'channel id', default=None, group='id'))
         channel_url = 'http://www.youtube.com/channel/%s' % channel_id if channel_id else None
 

-        # thumbnail image
-        # We try first to get a high quality image:
-        m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
-                            video_webpage, re.DOTALL)
-        if m_thumb is not None:
-            video_thumbnail = m_thumb.group(1)
-        elif 'thumbnail_url' not in video_info:
-            self._downloader.report_warning('unable to extract video thumbnail')
+        thumbnails = []
+        thumbnails_list = try_get(
+            video_details, lambda x: x['thumbnail']['thumbnails'], list) or []
+        for t in thumbnails_list:
+            if not isinstance(t, dict):
+                continue
+            thumbnail_url = url_or_none(t.get('url'))
+            if not thumbnail_url:
+                continue
+            thumbnails.append({
+                'url': thumbnail_url,
+                'width': int_or_none(t.get('width')),
+                'height': int_or_none(t.get('height')),
+            })
+
+        if not thumbnails:

             video_thumbnail = None
             video_thumbnail = None

-        else:   # don't panic if we can't find it
-            video_thumbnail = compat_urllib_parse_unquote_plus(video_info['thumbnail_url'][0])
+            # We try first to get a high quality image:
+            m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
+                                video_webpage, re.DOTALL)
+            if m_thumb is not None:
+                video_thumbnail = m_thumb.group(1)
+            thumbnail_url = try_get(video_info, lambda x: x['thumbnail_url'][0], compat_str)
+            if thumbnail_url:
+                video_thumbnail = compat_urllib_parse_unquote_plus(thumbnail_url)
+            if video_thumbnail:
+                thumbnails.append({'url': video_thumbnail})

 
         # upload date
         upload_date = self._html_search_meta(
 
         # upload date
         upload_date = self._html_search_meta(


@@ -2154,6 +2283,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 [r'(?s)id="eow-date.*?>(.*?)</span>',
                  r'(?:id="watch-uploader-info".*?>.*?|["\']simpleText["\']\s*:\s*["\'])(?:Published|Uploaded|Streamed live|Started) on (.+?)[<"\']'],
                 video_webpage, 'upload date', default=None)
                 [r'(?s)id="eow-date.*?>(.*?)</span>',
                  r'(?:id="watch-uploader-info".*?>.*?|["\']simpleText["\']\s*:\s*["\'])(?:Published|Uploaded|Streamed live|Started) on (.+?)[<"\']'],
                 video_webpage, 'upload date', default=None)

+        if not upload_date:
+            upload_date = microformat.get('publishDate') or microformat.get('uploadDate')

         upload_date = unified_strdate(upload_date)
 
         video_license = self._html_search_regex(
         upload_date = unified_strdate(upload_date)
 
         video_license = self._html_search_regex(


@@ -2225,17 +2356,21 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
         m_cat_container = self._search_regex(
             r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
             video_webpage, 'categories', default=None)
         m_cat_container = self._search_regex(
             r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
             video_webpage, 'categories', default=None)

+        category = None

         if m_cat_container:
             category = self._html_search_regex(
                 r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
                 default=None)
         if m_cat_container:
             category = self._html_search_regex(
                 r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
                 default=None)

-            video_categories = None if category is None else [category]
-        else:
-            video_categories = None
+        if not category:
+            category = try_get(
+                microformat, lambda x: x['category'], compat_str)
+        video_categories = None if category is None else [category]

 
         video_tags = [
             unescapeHTML(m.group('content'))
             for m in re.finditer(self._meta_regex('og:video:tag'), video_webpage)]
 
         video_tags = [
             unescapeHTML(m.group('content'))
             for m in re.finditer(self._meta_regex('og:video:tag'), video_webpage)]

+        if not video_tags:
+            video_tags = try_get(video_details, lambda x: x['keywords'], list)

 
         def _extract_count(count_name):
             return str_to_int(self._search_regex(
 
         def _extract_count(count_name):
             return str_to_int(self._search_regex(


@@ -2286,7 +2421,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                     errnote='Unable to download video annotations', fatal=False,
                     data=urlencode_postdata({xsrf_field_name: xsrf_token}))
 
                     errnote='Unable to download video annotations', fatal=False,
                     data=urlencode_postdata({xsrf_field_name: xsrf_token}))
 

-        chapters = self._extract_chapters(description_original, video_duration)
+        chapters = self._extract_chapters(video_webpage, description_original, video_id, video_duration)

 
         # Look for the DASH manifest
         if self._downloader.params.get('youtube_include_dash_manifest', True):
 
         # Look for the DASH manifest
         if self._downloader.params.get('youtube_include_dash_manifest', True):


@@ -2377,7 +2512,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             'creator': video_creator or artist,
             'title': video_title,
             'alt_title': video_alt_title or track,
             'creator': video_creator or artist,
             'title': video_title,
             'alt_title': video_alt_title or track,

-            'thumbnail': video_thumbnail,
+            'thumbnails': thumbnails,

             'description': video_description,
             'categories': video_categories,
             'tags': video_tags,
             'description': video_description,
             'categories': video_categories,
             'tags': video_tags,


@@ -3153,7 +3288,8 @@ class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
             more = self._download_json(
                 'https://youtube.com/%s' % mobj.group('more'), self._PLAYLIST_TITLE,
                 'Downloading page #%s' % page_num,
             more = self._download_json(
                 'https://youtube.com/%s' % mobj.group('more'), self._PLAYLIST_TITLE,
                 'Downloading page #%s' % page_num,

-                transform_source=uppercase_escape)
+                transform_source=uppercase_escape,
+                headers=self._YOUTUBE_CLIENT_HEADERS)

             content_html = more['content_html']
             more_widget_html = more['load_more_widget_html']
 
             content_html = more['content_html']
             more_widget_html = more['load_more_widget_html']