[youtube] Add fallback metadata extraction from videoDetails (closes #18052)

This commit is contained in:
Sergey M․ 2018-11-03 06:26:16 +07:00
parent 38c32dbf19
commit dbdaaa231a
No known key found for this signature in database
GPG Key ID: 2C393E0F18A9236D

View File

@ -41,6 +41,7 @@ from ..utils import (
remove_quotes, remove_quotes,
remove_start, remove_start,
smuggle_url, smuggle_url,
str_or_none,
str_to_int, str_to_int,
try_get, try_get,
unescapeHTML, unescapeHTML,
@ -501,6 +502,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
'categories': ['Science & Technology'], 'categories': ['Science & Technology'],
'tags': ['youtube-dl'], 'tags': ['youtube-dl'],
'duration': 10, 'duration': 10,
'view_count': int,
'like_count': int, 'like_count': int,
'dislike_count': int, 'dislike_count': int,
'start_time': 1, 'start_time': 1,
@ -583,6 +585,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
'categories': ['Science & Technology'], 'categories': ['Science & Technology'],
'tags': ['youtube-dl'], 'tags': ['youtube-dl'],
'duration': 10, 'duration': 10,
'view_count': int,
'like_count': int, 'like_count': int,
'dislike_count': int, 'dislike_count': int,
}, },
@ -1538,6 +1541,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
def extract_view_count(v_info): def extract_view_count(v_info):
return int_or_none(try_get(v_info, lambda x: x['view_count'][0])) return int_or_none(try_get(v_info, lambda x: x['view_count'][0]))
player_response = {}
# Get video info # Get video info
embed_webpage = None embed_webpage = None
if re.search(r'player-age-gate-content">', video_webpage) is not None: if re.search(r'player-age-gate-content">', video_webpage) is not None:
@ -1580,6 +1585,12 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
if args.get('livestream') == '1' or args.get('live_playback') == 1: if args.get('livestream') == '1' or args.get('live_playback') == 1:
is_live = True is_live = True
sts = ytplayer_config.get('sts') sts = ytplayer_config.get('sts')
if not player_response:
pl_response = str_or_none(args.get('player_response'))
if pl_response:
pl_response = self._parse_json(pl_response, video_id, fatal=False)
if isinstance(pl_response, dict):
player_response = pl_response
if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True): if not video_info or self._downloader.params.get('youtube_include_dash_manifest', True):
# We also try looking in get_video_info since it may contain different dashmpd # We also try looking in get_video_info since it may contain different dashmpd
# URL that points to a DASH manifest with possibly different itag set (some itags # URL that points to a DASH manifest with possibly different itag set (some itags
@ -1608,6 +1619,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
if not video_info_webpage: if not video_info_webpage:
continue continue
get_video_info = compat_parse_qs(video_info_webpage) get_video_info = compat_parse_qs(video_info_webpage)
if not player_response:
pl_response = get_video_info.get('player_response', [None])[0]
if isinstance(pl_response, dict):
player_response = pl_response
add_dash_mpd(get_video_info) add_dash_mpd(get_video_info)
if view_count is None: if view_count is None:
view_count = extract_view_count(get_video_info) view_count = extract_view_count(get_video_info)
@ -1653,9 +1668,14 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
'"token" parameter not in video info for unknown reason', '"token" parameter not in video info for unknown reason',
video_id=video_id) video_id=video_id)
video_details = try_get(
player_response, lambda x: x['videoDetails'], dict) or {}
# title # title
if 'title' in video_info: if 'title' in video_info:
video_title = video_info['title'][0] video_title = video_info['title'][0]
elif 'title' in player_response:
video_title = video_details['title']
else: else:
self._downloader.report_warning('Unable to extract video title') self._downloader.report_warning('Unable to extract video title')
video_title = '_' video_title = '_'
@ -1718,6 +1738,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
if view_count is None: if view_count is None:
view_count = extract_view_count(video_info) view_count = extract_view_count(video_info)
if view_count is None and video_details:
view_count = int_or_none(video_details.get('viewCount'))
# Check for "rental" videos # Check for "rental" videos
if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info: if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
@ -1898,7 +1920,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
raise ExtractorError('no conn, hlsvp or url_encoded_fmt_stream_map information found in video info') raise ExtractorError('no conn, hlsvp or url_encoded_fmt_stream_map information found in video info')
# uploader # uploader
video_uploader = try_get(video_info, lambda x: x['author'][0], compat_str) video_uploader = try_get(
video_info, lambda x: x['author'][0],
compat_str) or str_or_none(video_details.get('author'))
if video_uploader: if video_uploader:
video_uploader = compat_urllib_parse_unquote_plus(video_uploader) video_uploader = compat_urllib_parse_unquote_plus(video_uploader)
else: else:
@ -2011,12 +2035,19 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
like_count = _extract_count('like') like_count = _extract_count('like')
dislike_count = _extract_count('dislike') dislike_count = _extract_count('dislike')
if view_count is None:
view_count = str_to_int(self._search_regex(
r'<[^>]+class=["\']watch-view-count[^>]+>\s*([\d,\s]+)', video_webpage,
'view count', default=None))
# subtitles # subtitles
video_subtitles = self.extract_subtitles(video_id, video_webpage) video_subtitles = self.extract_subtitles(video_id, video_webpage)
automatic_captions = self.extract_automatic_captions(video_id, video_webpage) automatic_captions = self.extract_automatic_captions(video_id, video_webpage)
video_duration = try_get( video_duration = try_get(
video_info, lambda x: int_or_none(x['length_seconds'][0])) video_info, lambda x: int_or_none(x['length_seconds'][0]))
if not video_duration:
video_duration = int_or_none(video_details.get('lengthSeconds'))
if not video_duration: if not video_duration:
video_duration = parse_duration(self._html_search_meta( video_duration = parse_duration(self._html_search_meta(
'duration', video_webpage, 'video duration')) 'duration', video_webpage, 'video duration'))
@ -2244,6 +2275,7 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
'description': 'md5:507cdcb5a49ac0da37a920ece610be80', 'description': 'md5:507cdcb5a49ac0da37a920ece610be80',
'categories': ['People & Blogs'], 'categories': ['People & Blogs'],
'tags': list, 'tags': list,
'view_count': int,
'like_count': int, 'like_count': int,
'dislike_count': int, 'dislike_count': int,
}, },