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[youtube] Improve extraction of livestream metadata 

Modified from and closes #441
Authored by: pukkandan, krichbanana
This commit is contained in:
pukkandan 2021-07-21 20:45:45 +05:30
parent ae30b84072
commit 7ea6541124
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1 changed files with 33 additions and 12 deletions
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45
yt_dlp/extractor/youtube.py
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@ -43,6 +43,7 @@ from ..utils import (
parse_codecs,
parse_count,
parse_duration,
parse_iso8601,
qualities,
remove_start,
smuggle_url,
@ -2678,17 +2679,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
else:
self.to_screen('Downloading just video %s because of --no-playlist' % video_id)
category = get_first(microformats, 'category') or search_meta('genre')
channel_id = get_first(video_details, 'channelId') \
or get_first(microformats, 'externalChannelId') \
or search_meta('channelId')
duration = int_or_none(
get_first(video_details, 'lengthSeconds')
or get_first(microformats, 'lengthSeconds')) \
or parse_duration(search_meta('duration'))
live_broadcast_details = traverse_obj(microformats, (..., 'liveBroadcastDetails'))
is_live = get_first(video_details, 'isLive')
is_upcoming = get_first(video_details, 'isUpcoming')
owner_profile_url = get_first(microformats, 'ownerProfileUrl')
if is_live is None:
is_live = get_first(live_broadcast_details, 'isLiveNow')
streaming_data = traverse_obj(player_responses, (..., 'streamingData'), default=[])
formats = list(self._extract_formats(streaming_data, video_id, player_url, is_live))
@ -2786,6 +2780,29 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
thumb['preference'] = (0 if '.webp' in thumb['url'] else -1) - (2 * i)
self._remove_duplicate_formats(thumbnails)
category = get_first(microformats, 'category') or search_meta('genre')
channel_id = str_or_none(
get_first(video_details, 'channelId')
or get_first(microformats, 'externalChannelId')
or search_meta('channelId'))
duration = int_or_none(
get_first(video_details, 'lengthSeconds')
or get_first(microformats, 'lengthSeconds')
or parse_duration(search_meta('duration'))) or None
owner_profile_url = get_first(microformats, 'ownerProfileUrl')
live_content = get_first(video_details, 'isLiveContent')
is_upcoming = get_first(video_details, 'isUpcoming')
if is_live is None:
if is_upcoming or live_content is False:
is_live = False
if is_upcoming is None and (live_content or is_live):
is_upcoming = False
live_starttime = parse_iso8601(get_first(live_broadcast_details, 'startTimestamp'))
live_endtime = parse_iso8601(get_first(live_broadcast_details, 'endTimestamp'))
if not duration and live_endtime and live_starttime:
duration = live_endtime - live_starttime
info = {
'id': video_id,
'title': self._live_title(video_title) if is_live else video_title,
@ -2812,9 +2829,13 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
'webpage_url': webpage_url,
'categories': [category] if category else None,
'tags': keywords,
'is_live': is_live,
'playable_in_embed': get_first(playability_statuses, 'playableInEmbed'),
'was_live': get_first(video_details, 'isLiveContent'),
'is_live': is_live,
'was_live': (False if is_live or is_upcoming or live_content is False
else None if is_live is None or is_upcoming is None
else live_content),
'live_status': 'is_upcoming' if is_upcoming else None, # rest will be set by YoutubeDL
'release_timestamp': live_starttime,
}
pctr = get_first(player_responses, ('captions', 'playerCaptionsTracklistRenderer'), expected_type=dict)