[youtube:ytsearch] Use the same system as the search webpage (fixes #5483)
[youtube-dl] / youtube_dl / extractor / youtube.py
index a9e4443510bc58e6d74820469f10852f64ecc5e7..f1a5c00775209a9b41d3cb72d8dc2ec1e19d7cb3 100644 (file)
@@ -11,7 +11,6 @@ import time
 import traceback
 
 from .common import InfoExtractor, SearchInfoExtractor
 import traceback
 
 from .common import InfoExtractor, SearchInfoExtractor
-from .subtitles import SubtitlesInfoExtractor
 from ..jsinterp import JSInterpreter
 from ..swfinterp import SWFInterpreter
 from ..compat import (
 from ..jsinterp import JSInterpreter
 from ..swfinterp import SWFInterpreter
 from ..compat import (
@@ -25,11 +24,10 @@ from ..compat import (
 from ..utils import (
     clean_html,
     ExtractorError,
 from ..utils import (
     clean_html,
     ExtractorError,
+    float_or_none,
     get_element_by_attribute,
     get_element_by_id,
     int_or_none,
     get_element_by_attribute,
     get_element_by_id,
     int_or_none,
-    js_to_json,
-    OnDemandPagedList,
     orderedSet,
     unescapeHTML,
     unified_strdate,
     orderedSet,
     unescapeHTML,
     unified_strdate,
@@ -185,7 +183,7 @@ class YoutubeBaseInfoExtractor(InfoExtractor):
             return
 
 
             return
 
 
-class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
+class YoutubeIE(YoutubeBaseInfoExtractor):
     IE_DESC = 'YouTube.com'
     _VALID_URL = r"""(?x)^
                      (
     IE_DESC = 'YouTube.com'
     _VALID_URL = r"""(?x)^
                      (
@@ -496,7 +494,23 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
                 'uploader': '孫艾倫',
                 'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
             },
                 'uploader': '孫艾倫',
                 'title': '[A-made] 變態妍字幕版 太妍 我就是這樣的人',
             },
-        }
+        },
+        # url_encoded_fmt_stream_map is empty string
+        {
+            'url': 'qEJwOuvDf7I',
+            'info_dict': {
+                'id': 'qEJwOuvDf7I',
+                'ext': 'mp4',
+                'title': 'Обсуждение судебной практики по выборам 14 сентября 2014 года в Санкт-Петербурге',
+                'description': '',
+                'upload_date': '20150404',
+                'uploader_id': 'spbelect',
+                'uploader': 'Наблюдатели Петербурга',
+            },
+            'params': {
+                'skip_download': 'requires avconv',
+            }
+        },
     ]
 
     def __init__(self, *args, **kwargs):
     ]
 
     def __init__(self, *args, **kwargs):
@@ -541,26 +555,30 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
         if cache_spec is not None:
             return lambda s: ''.join(s[i] for i in cache_spec)
 
         if cache_spec is not None:
             return lambda s: ''.join(s[i] for i in cache_spec)
 
+        download_note = (
+            'Downloading player %s' % player_url
+            if self._downloader.params.get('verbose') else
+            'Downloading %s player %s' % (player_type, player_id)
+        )
         if player_type == 'js':
             code = self._download_webpage(
                 player_url, video_id,
         if player_type == 'js':
             code = self._download_webpage(
                 player_url, video_id,
-                note='Downloading %s player %s' % (player_type, player_id),
+                note=download_note,
                 errnote='Download of %s failed' % player_url)
             res = self._parse_sig_js(code)
         elif player_type == 'swf':
             urlh = self._request_webpage(
                 player_url, video_id,
                 errnote='Download of %s failed' % player_url)
             res = self._parse_sig_js(code)
         elif player_type == 'swf':
             urlh = self._request_webpage(
                 player_url, video_id,
-                note='Downloading %s player %s' % (player_type, player_id),
+                note=download_note,
                 errnote='Download of %s failed' % player_url)
             code = urlh.read()
             res = self._parse_sig_swf(code)
         else:
             assert False, 'Invalid player type %r' % player_type
 
                 errnote='Download of %s failed' % player_url)
             code = urlh.read()
             res = self._parse_sig_swf(code)
         else:
             assert False, 'Invalid player type %r' % player_type
 
-        if cache_spec is None:
-            test_string = ''.join(map(compat_chr, range(len(example_sig))))
-            cache_res = res(test_string)
-            cache_spec = [ord(c) for c in cache_res]
+        test_string = ''.join(map(compat_chr, range(len(example_sig))))
+        cache_res = res(test_string)
+        cache_spec = [ord(c) for c in cache_res]
 
         self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
         return res
 
         self._downloader.cache.store('youtube-sigfuncs', func_id, cache_spec)
         return res
@@ -644,7 +662,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
             raise ExtractorError(
                 'Signature extraction failed: ' + tb, cause=e)
 
             raise ExtractorError(
                 'Signature extraction failed: ' + tb, cause=e)
 
-    def _get_available_subtitles(self, video_id, webpage):
+    def _get_subtitles(self, video_id, webpage):
         try:
             subs_doc = self._download_xml(
                 'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
         try:
             subs_doc = self._download_xml(
                 'https://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
@@ -658,23 +676,27 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
             lang = track.attrib['lang_code']
             if lang in sub_lang_list:
                 continue
             lang = track.attrib['lang_code']
             if lang in sub_lang_list:
                 continue
-            params = compat_urllib_parse.urlencode({
-                'lang': lang,
-                'v': video_id,
-                'fmt': self._downloader.params.get('subtitlesformat', 'srt'),
-                'name': track.attrib['name'].encode('utf-8'),
-            })
-            url = 'https://www.youtube.com/api/timedtext?' + params
-            sub_lang_list[lang] = url
+            sub_formats = []
+            for ext in ['sbv', 'vtt', 'srt']:
+                params = compat_urllib_parse.urlencode({
+                    'lang': lang,
+                    'v': video_id,
+                    'fmt': ext,
+                    'name': track.attrib['name'].encode('utf-8'),
+                })
+                sub_formats.append({
+                    'url': 'https://www.youtube.com/api/timedtext?' + params,
+                    'ext': ext,
+                })
+            sub_lang_list[lang] = sub_formats
         if not sub_lang_list:
             self._downloader.report_warning('video doesn\'t have subtitles')
             return {}
         return sub_lang_list
 
         if not sub_lang_list:
             self._downloader.report_warning('video doesn\'t have subtitles')
             return {}
         return sub_lang_list
 
-    def _get_available_automatic_caption(self, video_id, webpage):
+    def _get_automatic_captions(self, video_id, webpage):
         """We need the webpage for getting the captions url, pass it as an
            argument to speed up the process."""
         """We need the webpage for getting the captions url, pass it as an
            argument to speed up the process."""
-        sub_format = self._downloader.params.get('subtitlesformat', 'srt')
         self.to_screen('%s: Looking for automatic captions' % video_id)
         mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
         err_msg = 'Couldn\'t find automatic captions for %s' % video_id
         self.to_screen('%s: Looking for automatic captions' % video_id)
         mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
         err_msg = 'Couldn\'t find automatic captions for %s' % video_id
@@ -704,14 +726,20 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
             sub_lang_list = {}
             for lang_node in caption_list.findall('target'):
                 sub_lang = lang_node.attrib['lang_code']
             sub_lang_list = {}
             for lang_node in caption_list.findall('target'):
                 sub_lang = lang_node.attrib['lang_code']
-                params = compat_urllib_parse.urlencode({
-                    'lang': original_lang,
-                    'tlang': sub_lang,
-                    'fmt': sub_format,
-                    'ts': timestamp,
-                    'kind': caption_kind,
-                })
-                sub_lang_list[sub_lang] = caption_url + '&' + params
+                sub_formats = []
+                for ext in ['sbv', 'vtt', 'srt']:
+                    params = compat_urllib_parse.urlencode({
+                        'lang': original_lang,
+                        'tlang': sub_lang,
+                        'fmt': ext,
+                        'ts': timestamp,
+                        'kind': caption_kind,
+                    })
+                    sub_formats.append({
+                        'url': caption_url + '&' + params,
+                        'ext': ext,
+                    })
+                sub_lang_list[sub_lang] = sub_formats
             return sub_lang_list
         # An extractor error can be raise by the download process if there are
         # no automatic captions but there are subtitles
             return sub_lang_list
         # An extractor error can be raise by the download process if there are
         # no automatic captions but there are subtitles
@@ -759,32 +787,41 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
             errnote='Could not download DASH manifest')
 
         formats = []
             errnote='Could not download DASH manifest')
 
         formats = []
-        for r in dash_doc.findall('.//{urn:mpeg:DASH:schema:MPD:2011}Representation'):
-            url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
-            if url_el is None:
-                continue
-            format_id = r.attrib['id']
-            video_url = url_el.text
-            filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
-            f = {
-                'format_id': format_id,
-                'url': video_url,
-                'width': int_or_none(r.attrib.get('width')),
-                'height': int_or_none(r.attrib.get('height')),
-                'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
-                'asr': int_or_none(r.attrib.get('audioSamplingRate')),
-                'filesize': filesize,
-                'fps': int_or_none(r.attrib.get('frameRate')),
-            }
-            try:
-                existing_format = next(
-                    fo for fo in formats
-                    if fo['format_id'] == format_id)
-            except StopIteration:
-                f.update(self._formats.get(format_id, {}).items())
-                formats.append(f)
-            else:
-                existing_format.update(f)
+        for a in dash_doc.findall('.//{urn:mpeg:DASH:schema:MPD:2011}AdaptationSet'):
+            mime_type = a.attrib.get('mimeType')
+            for r in a.findall('{urn:mpeg:DASH:schema:MPD:2011}Representation'):
+                url_el = r.find('{urn:mpeg:DASH:schema:MPD:2011}BaseURL')
+                if url_el is None:
+                    continue
+                if mime_type == 'text/vtt':
+                    # TODO implement WebVTT downloading
+                    pass
+                elif mime_type.startswith('audio/') or mime_type.startswith('video/'):
+                    format_id = r.attrib['id']
+                    video_url = url_el.text
+                    filesize = int_or_none(url_el.attrib.get('{http://youtube.com/yt/2012/10/10}contentLength'))
+                    f = {
+                        'format_id': format_id,
+                        'url': video_url,
+                        'width': int_or_none(r.attrib.get('width')),
+                        'height': int_or_none(r.attrib.get('height')),
+                        'tbr': int_or_none(r.attrib.get('bandwidth'), 1000),
+                        'asr': int_or_none(r.attrib.get('audioSamplingRate')),
+                        'filesize': filesize,
+                        'fps': int_or_none(r.attrib.get('frameRate')),
+                    }
+                    try:
+                        existing_format = next(
+                            fo for fo in formats
+                            if fo['format_id'] == format_id)
+                    except StopIteration:
+                        full_info = self._formats.get(format_id, {}).copy()
+                        full_info.update(f)
+                        formats.append(full_info)
+                    else:
+                        existing_format.update(f)
+                else:
+                    self.report_warning('Unknown MIME type %s in DASH manifest' % mime_type)
         return formats
 
     def _real_extract(self, url):
         return formats
 
     def _real_extract(self, url):
@@ -841,7 +878,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
                 args = ytplayer_config['args']
                 # Convert to the same format returned by compat_parse_qs
                 video_info = dict((k, [v]) for k, v in args.items())
                 args = ytplayer_config['args']
                 # Convert to the same format returned by compat_parse_qs
                 video_info = dict((k, [v]) for k, v in args.items())
-                if 'url_encoded_fmt_stream_map' not in args:
+                if not args.get('url_encoded_fmt_stream_map'):
                     raise ValueError('No stream_map present')  # caught below
             except ValueError:
                 # We fallback to the get_video_info pages (used by the embed page)
                     raise ValueError('No stream_map present')  # caught below
             except ValueError:
                 # We fallback to the get_video_info pages (used by the embed page)
@@ -965,10 +1002,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
 
         # subtitles
         video_subtitles = self.extract_subtitles(video_id, video_webpage)
 
         # subtitles
         video_subtitles = self.extract_subtitles(video_id, video_webpage)
-
-        if self._downloader.params.get('listsubtitles', False):
-            self._list_available_subtitles(video_id, video_webpage)
-            return
+        automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
 
         if 'length_seconds' not in video_info:
             self._downloader.report_warning('unable to extract video duration')
 
         if 'length_seconds' not in video_info:
             self._downloader.report_warning('unable to extract video duration')
@@ -1117,6 +1151,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
             'description': video_description,
             'categories': video_categories,
             'subtitles': video_subtitles,
             'description': video_description,
             'categories': video_categories,
             'subtitles': video_subtitles,
+            'automatic_captions': automatic_captions,
             'duration': video_duration,
             'age_limit': 18 if age_gate else 0,
             'annotations': video_annotations,
             'duration': video_duration,
             'age_limit': 18 if age_gate else 0,
             'annotations': video_annotations,
@@ -1124,6 +1159,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
             'view_count': view_count,
             'like_count': like_count,
             'dislike_count': dislike_count,
             'view_count': view_count,
             'like_count': like_count,
             'dislike_count': dislike_count,
+            'average_rating': float_or_none(video_info.get('avg_rating', [None])[0]),
             'formats': formats,
         }
 
             'formats': formats,
         }
 
@@ -1140,13 +1176,13 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
                         |  p/
                         )
                         (
                         |  p/
                         )
                         (
-                            (?:PL|LL|EC|UU|FL|RD)?[0-9A-Za-z-_]{10,}
+                            (?:PL|LL|EC|UU|FL|RD|UL)?[0-9A-Za-z-_]{10,}
                             # Top tracks, they can also include dots
                             |(?:MC)[\w\.]*
                         )
                         .*
                      |
                             # Top tracks, they can also include dots
                             |(?:MC)[\w\.]*
                         )
                         .*
                      |
-                        ((?:PL|LL|EC|UU|FL|RD)[0-9A-Za-z-_]{10,})
+                        ((?:PL|LL|EC|UU|FL|RD|UL)[0-9A-Za-z-_]{10,})
                      )"""
     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)'
                      )"""
     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s'
     _VIDEO_RE = r'href="\s*/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)'
@@ -1161,6 +1197,7 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
     }, {
         'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
         'info_dict': {
     }, {
         'url': 'https://www.youtube.com/playlist?list=PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
         'info_dict': {
+            'id': 'PLtPgu7CB4gbZDA7i_euNxn75ISqxwZPYx',
             'title': 'YDL_Empty_List',
         },
         'playlist_count': 0,
             'title': 'YDL_Empty_List',
         },
         'playlist_count': 0,
@@ -1169,6 +1206,7 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
         'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
         'info_dict': {
             'title': '29C3: Not my department',
         'url': 'https://www.youtube.com/playlist?list=PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
         'info_dict': {
             'title': '29C3: Not my department',
+            'id': 'PLwP_SiAcdui0KVebT0mU9Apz359a4ubsC',
         },
         'playlist_count': 95,
     }, {
         },
         'playlist_count': 95,
     }, {
@@ -1176,6 +1214,7 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
         'url': 'PLBB231211A4F62143',
         'info_dict': {
             'title': '[OLD]Team Fortress 2 (Class-based LP)',
         'url': 'PLBB231211A4F62143',
         'info_dict': {
             'title': '[OLD]Team Fortress 2 (Class-based LP)',
+            'id': 'PLBB231211A4F62143',
         },
         'playlist_mincount': 26,
     }, {
         },
         'playlist_mincount': 26,
     }, {
@@ -1183,12 +1222,14 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
         'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
         'info_dict': {
             'title': 'Uploads from Cauchemar',
         'url': 'https://www.youtube.com/playlist?list=UUBABnxM4Ar9ten8Mdjj1j0Q',
         'info_dict': {
             'title': 'Uploads from Cauchemar',
+            'id': 'UUBABnxM4Ar9ten8Mdjj1j0Q',
         },
         'playlist_mincount': 799,
     }, {
         'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
         'info_dict': {
             'title': 'YDL_safe_search',
         },
         'playlist_mincount': 799,
     }, {
         'url': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
         'info_dict': {
             'title': 'YDL_safe_search',
+            'id': 'PLtPgu7CB4gbY9oDN3drwC3cMbJggS7dKl',
         },
         'playlist_count': 2,
     }, {
         },
         'playlist_count': 2,
     }, {
@@ -1197,6 +1238,7 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA15',
         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA15',
+            'id': 'PL6IaIsEjSbf96XFRuNccS_RuEXwNdsoEu',
         }
     }, {
         'note': 'Embedded SWF player',
         }
     }, {
         'note': 'Embedded SWF player',
@@ -1204,12 +1246,14 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA7',
         'playlist_count': 4,
         'info_dict': {
             'title': 'JODA7',
+            'id': 'YN5VISEtHet5D4NEvfTd0zcgFk84NqFZ',
         }
     }, {
         'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
         'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
         'info_dict': {
         }
     }, {
         'note': 'Buggy playlist: the webpage has a "Load more" button but it doesn\'t have more videos',
         'url': 'https://www.youtube.com/playlist?list=UUXw-G3eDE9trcvY2sBMM_aA',
         'info_dict': {
-                'title': 'Uploads from Interstellar Movie',
+            'title': 'Uploads from Interstellar Movie',
+            'id': 'UUXw-G3eDE9trcvY2sBMM_aA',
         },
         'playlist_mincout': 21,
     }]
         },
         'playlist_mincout': 21,
     }]
@@ -1223,7 +1267,7 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
             for vid_id in ids]
 
     def _extract_mix(self, playlist_id):
             for vid_id in ids]
 
     def _extract_mix(self, playlist_id):
-        # The mixes are generated from a single video
+        # The mixes are generated from a single video
         # the id of the playlist is just 'RD' + video_id
         url = 'https://youtube.com/watch?v=%s&list=%s' % (playlist_id[-11:], playlist_id)
         webpage = self._download_webpage(
         # the id of the playlist is just 'RD' + video_id
         url = 'https://youtube.com/watch?v=%s&list=%s' % (playlist_id[-11:], playlist_id)
         webpage = self._download_webpage(
@@ -1242,27 +1286,7 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
 
         return self.playlist_result(url_results, playlist_id, title)
 
 
         return self.playlist_result(url_results, playlist_id, title)
 
-    def _real_extract(self, url):
-        # Extract playlist id
-        mobj = re.match(self._VALID_URL, url)
-        if mobj is None:
-            raise ExtractorError('Invalid URL: %s' % url)
-        playlist_id = mobj.group(1) or mobj.group(2)
-
-        # Check if it's a video-specific URL
-        query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
-        if 'v' in query_dict:
-            video_id = query_dict['v'][0]
-            if self._downloader.params.get('noplaylist'):
-                self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
-                return self.url_result(video_id, 'Youtube', video_id=video_id)
-            else:
-                self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
-
-        if playlist_id.startswith('RD'):
-            # Mixes require a custom extraction process
-            return self._extract_mix(playlist_id)
-
+    def _extract_playlist(self, playlist_id):
         url = self._TEMPLATE_URL % playlist_id
         page = self._download_webpage(url, playlist_id)
         more_widget_html = content_html = page
         url = self._TEMPLATE_URL % playlist_id
         page = self._download_webpage(url, playlist_id)
         more_widget_html = content_html = page
@@ -1306,30 +1330,65 @@ class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
         url_results = self._ids_to_results(ids)
         return self.playlist_result(url_results, playlist_id, playlist_title)
 
         url_results = self._ids_to_results(ids)
         return self.playlist_result(url_results, playlist_id, playlist_title)
 
+    def _real_extract(self, url):
+        # Extract playlist id
+        mobj = re.match(self._VALID_URL, url)
+        if mobj is None:
+            raise ExtractorError('Invalid URL: %s' % url)
+        playlist_id = mobj.group(1) or mobj.group(2)
+
+        # Check if it's a video-specific URL
+        query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
+        if 'v' in query_dict:
+            video_id = query_dict['v'][0]
+            if self._downloader.params.get('noplaylist'):
+                self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
+                return self.url_result(video_id, 'Youtube', video_id=video_id)
+            else:
+                self.to_screen('Downloading playlist %s - add --no-playlist to just download video %s' % (playlist_id, video_id))
+
+        if playlist_id.startswith('RD') or playlist_id.startswith('UL'):
+            # Mixes require a custom extraction process
+            return self._extract_mix(playlist_id)
+
+        return self._extract_playlist(playlist_id)
+
 
 class YoutubeChannelIE(InfoExtractor):
     IE_DESC = 'YouTube.com channels'
     _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/(?P<id>[0-9A-Za-z_-]+)'
 
 class YoutubeChannelIE(InfoExtractor):
     IE_DESC = 'YouTube.com channels'
     _VALID_URL = r'https?://(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/(?P<id>[0-9A-Za-z_-]+)'
+    _TEMPLATE_URL = 'https://www.youtube.com/channel/%s/videos'
     IE_NAME = 'youtube:channel'
     _TESTS = [{
         'note': 'paginated channel',
         'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
         'playlist_mincount': 91,
     IE_NAME = 'youtube:channel'
     _TESTS = [{
         'note': 'paginated channel',
         'url': 'https://www.youtube.com/channel/UCKfVa3S1e4PHvxWcwyMMg8w',
         'playlist_mincount': 91,
+        'info_dict': {
+            'id': 'UCKfVa3S1e4PHvxWcwyMMg8w',
+        }
     }]
 
     }]
 
-    def extract_videos_from_page(self, page):
+    @staticmethod
+    def extract_videos_from_page(page):
         ids_in_page = []
         ids_in_page = []
-        for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
-            if mobj.group(1) not in ids_in_page:
-                ids_in_page.append(mobj.group(1))
-        return ids_in_page
+        titles_in_page = []
+        for mobj in re.finditer(r'(?:title="(?P<title>[^"]+)"[^>]+)?href="/watch\?v=(?P<id>[0-9A-Za-z_-]+)&?', page):
+            video_id = mobj.group('id')
+            video_title = unescapeHTML(mobj.group('title'))
+            try:
+                idx = ids_in_page.index(video_id)
+                if video_title and not titles_in_page[idx]:
+                    titles_in_page[idx] = video_title
+            except ValueError:
+                ids_in_page.append(video_id)
+                titles_in_page.append(video_title)
+        return zip(ids_in_page, titles_in_page)
 
     def _real_extract(self, url):
         channel_id = self._match_id(url)
 
 
     def _real_extract(self, url):
         channel_id = self._match_id(url)
 
-        video_ids = []
-        url = 'https://www.youtube.com/channel/%s/videos' % channel_id
-        channel_page = self._download_webpage(url, channel_id)
+        url = self._TEMPLATE_URL % channel_id
+        channel_page = self._download_webpage(url, channel_id, 'Downloading page #1')
         autogenerated = re.search(r'''(?x)
                 class="[^"]*?(?:
                     channel-header-autogenerated-label|
         autogenerated = re.search(r'''(?x)
                 class="[^"]*?(?:
                     channel-header-autogenerated-label|
@@ -1339,20 +1398,21 @@ class YoutubeChannelIE(InfoExtractor):
         if autogenerated:
             # The videos are contained in a single page
             # the ajax pages can't be used, they are empty
         if autogenerated:
             # The videos are contained in a single page
             # the ajax pages can't be used, they are empty
-            video_ids = self.extract_videos_from_page(channel_page)
             entries = [
             entries = [
-                self.url_result(video_id, 'Youtube', video_id=video_id)
-                for video_id in video_ids]
+                self.url_result(
+                    video_id, 'Youtube', video_id=video_id,
+                    video_title=video_title)
+                for video_id, video_title in self.extract_videos_from_page(channel_page)]
             return self.playlist_result(entries, channel_id)
 
         def _entries():
             more_widget_html = content_html = channel_page
             for pagenum in itertools.count(1):
 
             return self.playlist_result(entries, channel_id)
 
         def _entries():
             more_widget_html = content_html = channel_page
             for pagenum in itertools.count(1):
 
-                ids_in_page = self.extract_videos_from_page(content_html)
-                for video_id in ids_in_page:
+                for video_id, video_title in self.extract_videos_from_page(content_html):
                     yield self.url_result(
                     yield self.url_result(
-                        video_id, 'Youtube', video_id=video_id)
+                        video_id, 'Youtube', video_id=video_id,
+                        video_title=video_title)
 
                 mobj = re.search(
                     r'data-uix-load-more-href="/?(?P<more>[^"]+)"',
 
                 mobj = re.search(
                     r'data-uix-load-more-href="/?(?P<more>[^"]+)"',
@@ -1370,12 +1430,10 @@ class YoutubeChannelIE(InfoExtractor):
         return self.playlist_result(_entries(), channel_id)
 
 
         return self.playlist_result(_entries(), channel_id)
 
 
-class YoutubeUserIE(InfoExtractor):
+class YoutubeUserIE(YoutubeChannelIE):
     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
     _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch|results)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
     IE_DESC = 'YouTube.com user videos (URL or "ytuser" keyword)'
     _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch|results)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)(?P<id>[A-Za-z0-9_-]+)'
-    _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/users/%s'
-    _GDATA_PAGE_SIZE = 50
-    _GDATA_URL = 'https://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d&alt=json'
+    _TEMPLATE_URL = 'https://www.youtube.com/user/%s/videos'
     IE_NAME = 'youtube:user'
 
     _TESTS = [{
     IE_NAME = 'youtube:user'
 
     _TESTS = [{
@@ -1399,95 +1457,56 @@ class YoutubeUserIE(InfoExtractor):
         else:
             return super(YoutubeUserIE, cls).suitable(url)
 
         else:
             return super(YoutubeUserIE, cls).suitable(url)
 
-    def _real_extract(self, url):
-        username = self._match_id(url)
-
-        # Download video ids using YouTube Data API. Result size per
-        # query is limited (currently to 50 videos) so we need to query
-        # page by page until there are no video ids - it means we got
-        # all of them.
-
-        def download_page(pagenum):
-            start_index = pagenum * self._GDATA_PAGE_SIZE + 1
-
-            gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
-            page = self._download_webpage(
-                gdata_url, username,
-                'Downloading video ids from %d to %d' % (
-                    start_index, start_index + self._GDATA_PAGE_SIZE))
-
-            try:
-                response = json.loads(page)
-            except ValueError as err:
-                raise ExtractorError('Invalid JSON in API response: ' + compat_str(err))
-            if 'entry' not in response['feed']:
-                return
-
-            # Extract video identifiers
-            entries = response['feed']['entry']
-            for entry in entries:
-                title = entry['title']['$t']
-                video_id = entry['id']['$t'].split('/')[-1]
-                yield {
-                    '_type': 'url',
-                    'url': video_id,
-                    'ie_key': 'Youtube',
-                    'id': video_id,
-                    'title': title,
-                }
-        url_results = OnDemandPagedList(download_page, self._GDATA_PAGE_SIZE)
-
-        return self.playlist_result(url_results, playlist_title=username)
 
 
-
-class YoutubeSearchIE(SearchInfoExtractor):
+class YoutubeSearchIE(SearchInfoExtractor, YoutubePlaylistIE):
     IE_DESC = 'YouTube.com searches'
     IE_DESC = 'YouTube.com searches'
-    _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
-    _MAX_RESULTS = 1000
+    # there doesn't appear to be a real limit, for example if you search for
+    # 'python' you get more than 8.000.000 results
+    _MAX_RESULTS = float('inf')
     IE_NAME = 'youtube:search'
     _SEARCH_KEY = 'ytsearch'
     IE_NAME = 'youtube:search'
     _SEARCH_KEY = 'ytsearch'
+    _EXTRA_QUERY_ARGS = {}
 
     def _get_n_results(self, query, n):
         """Get a specified number of results for a query"""
 
 
     def _get_n_results(self, query, n):
         """Get a specified number of results for a query"""
 
-        video_ids = []
-        pagenum = 0
+        videos = []
         limit = n
         limit = n
-        PAGE_SIZE = 50
 
 
-        while (PAGE_SIZE * pagenum) < limit:
-            result_url = self._API_URL % (
-                compat_urllib_parse.quote_plus(query.encode('utf-8')),
-                (PAGE_SIZE * pagenum) + 1)
-            data_json = self._download_webpage(
+        for pagenum in itertools.count(1):
+            url_query = {
+                'search_query': query,
+                'page': pagenum,
+                'spf': 'navigate',
+            }
+            url_query.update(self._EXTRA_QUERY_ARGS)
+            result_url = 'https://www.youtube.com/results?' + compat_urllib_parse.urlencode(url_query)
+            data = self._download_json(
                 result_url, video_id='query "%s"' % query,
                 result_url, video_id='query "%s"' % query,
-                note='Downloading page %s' % (pagenum + 1),
+                note='Downloading page %s' % pagenum,
                 errnote='Unable to download API page')
                 errnote='Unable to download API page')
-            data = json.loads(data_json)
-            api_response = data['data']
+            html_content = data[1]['body']['content']
 
 
-            if 'items' not in api_response:
+            if 'class="search-message' in html_content:
                 raise ExtractorError(
                     '[youtube] No video results', expected=True)
 
                 raise ExtractorError(
                     '[youtube] No video results', expected=True)
 
-            new_ids = list(video['id'] for video in api_response['items'])
-            video_ids += new_ids
-
-            limit = min(n, api_response['totalItems'])
-            pagenum += 1
+            new_videos = self._ids_to_results(orderedSet(re.findall(
+                r'href="/watch\?v=(.{11})', html_content)))
+            videos += new_videos
+            if not new_videos or len(videos) > limit:
+                break
 
 
-        if len(video_ids) > n:
-            video_ids = video_ids[:n]
-        videos = [self.url_result(video_id, 'Youtube', video_id=video_id)
-                  for video_id in video_ids]
+        if len(videos) > n:
+            videos = videos[:n]
         return self.playlist_result(videos, query)
 
 
 class YoutubeSearchDateIE(YoutubeSearchIE):
     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
         return self.playlist_result(videos, query)
 
 
 class YoutubeSearchDateIE(YoutubeSearchIE):
     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
-    _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc&orderby=published'
     _SEARCH_KEY = 'ytsearchdate'
     IE_DESC = 'YouTube.com searches, newest videos first'
     _SEARCH_KEY = 'ytsearchdate'
     IE_DESC = 'YouTube.com searches, newest videos first'
+    _EXTRA_QUERY_ARGS = {'search_sort': 'video_date_uploaded'}
 
 
 class YoutubeSearchURLIE(InfoExtractor):
 
 
 class YoutubeSearchURLIE(InfoExtractor):
@@ -1508,7 +1527,7 @@ class YoutubeSearchURLIE(InfoExtractor):
 
         webpage = self._download_webpage(url, query)
         result_code = self._search_regex(
 
         webpage = self._download_webpage(url, query)
         result_code = self._search_regex(
-            r'(?s)<ol class="item-section"(.*?)</ol>', webpage, 'result HTML')
+            r'(?s)<ol[^>]+class="item-section"(.*?)</ol>', webpage, 'result HTML')
 
         part_codes = re.findall(
             r'(?s)<h3 class="yt-lockup-title">(.*?)</h3>', result_code)
 
         part_codes = re.findall(
             r'(?s)<h3 class="yt-lockup-title">(.*?)</h3>', result_code)
@@ -1619,21 +1638,26 @@ class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
 
 
 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
 
 
 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
+    IE_NAME = 'youtube:recommended'
     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
     _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
     _FEED_NAME = 'recommended'
     _PLAYLIST_TITLE = 'Youtube Recommended videos'
 
 
     IE_DESC = 'YouTube.com recommended videos, ":ytrec" for short (requires authentication)'
     _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
     _FEED_NAME = 'recommended'
     _PLAYLIST_TITLE = 'Youtube Recommended videos'
 
 
-class YoutubeWatchLaterIE(YoutubeFeedsInfoExtractor):
+class YoutubeWatchLaterIE(YoutubePlaylistIE):
+    IE_NAME = 'youtube:watchlater'
     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
     IE_DESC = 'Youtube watch later list, ":ytwatchlater" for short (requires authentication)'
-    _VALID_URL = r'https?://www\.youtube\.com/feed/watch_later|:ytwatchlater'
-    _FEED_NAME = 'watch_later'
-    _PLAYLIST_TITLE = 'Youtube Watch Later'
-    _PERSONAL_FEED = True
+    _VALID_URL = r'https?://www\.youtube\.com/(?:feed/watch_later|playlist\?list=WL)|:ytwatchlater'
+
+    _TESTS = []  # override PlaylistIE tests
+
+    def _real_extract(self, url):
+        return self._extract_playlist('WL')
 
 
 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
 
 
 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
+    IE_NAME = 'youtube:history'
     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
     _VALID_URL = 'https?://www\.youtube\.com/feed/history|:ythistory'
     _FEED_NAME = 'history'
     IE_DESC = 'Youtube watch history, ":ythistory" for short (requires authentication)'
     _VALID_URL = 'https?://www\.youtube\.com/feed/history|:ythistory'
     _FEED_NAME = 'history'