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yt-dlp/yt_dlp/extractor/ted.py
pukkandan bfd973ece3 [extractors] Use new framework for existing embeds (#4307) 
`Brightcove` is difficult to migrate because it's subclasses may depend
on the signature of the current functions. So it is left as-is for now

Note: Tests have not been migrated
2022-08-02 01:08:16 +05:30

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import itertools
import re
from .common import InfoExtractor
from ..utils import (
int_or_none,
str_to_int,
try_get,
url_or_none,
unified_strdate,
parse_duration,
)
class TedBaseIE(InfoExtractor):
_VALID_URL_BASE = r'https?://www\.ted\.com/(?:{type})(?:/lang/[^/#?]+)?/(?P<id>[\w-]+)'
def _parse_playlist(self, playlist):
for entry in try_get(playlist, lambda x: x['videos']['nodes'], list):
if entry.get('__typename') == 'Video' and entry.get('canonicalUrl'):
yield self.url_result(entry['canonicalUrl'], TedTalkIE.ie_key())
class TedTalkIE(TedBaseIE):
_VALID_URL = TedBaseIE._VALID_URL_BASE.format(type='talks')
_TESTS = [{
'url': 'https://www.ted.com/talks/candace_parker_how_to_break_down_barriers_and_not_accept_limits',
'md5': '47e82c666d9c3261d4fe74748a90aada',
'info_dict': {
'id': '86532',
'ext': 'mp4',
'title': 'How to break down barriers and not accept limits',
'description': 'md5:000707cece219d1e165b11550d612331',
'view_count': int,
'tags': ['personal growth', 'equality', 'activism', 'motivation', 'social change', 'sports'],
'uploader': 'Candace Parker',
'duration': 676.0,
'upload_date': '20220114',
'release_date': '20211201',
'thumbnail': r're:http.*\.jpg',
},
}]
def _real_extract(self, url):
display_id = self._match_id(url)
webpage = self._download_webpage(url, display_id)
talk_info = self._search_nextjs_data(webpage, display_id)['props']['pageProps']['videoData']
video_id = talk_info['id']
playerData = self._parse_json(talk_info.get('playerData'), video_id)
http_url = None
formats, subtitles = [], {}
for format_id, resources in (playerData.get('resources') or {}).items():
if format_id == 'hls':
stream_url = url_or_none(try_get(resources, lambda x: x['stream']))
if not stream_url:
continue
m3u8_formats, m3u8_subs = self._extract_m3u8_formats_and_subtitles(
stream_url, video_id, 'mp4', m3u8_id=format_id, fatal=False)
formats.extend(m3u8_formats)
subtitles = self._merge_subtitles(subtitles, m3u8_subs)
continue
if not isinstance(resources, list):
continue
if format_id == 'h264':
for resource in resources:
h264_url = resource.get('file')
if not h264_url:
continue
bitrate = int_or_none(resource.get('bitrate'))
formats.append({
'url': h264_url,
'format_id': '%s-%sk' % (format_id, bitrate),
'tbr': bitrate,
})
if re.search(r'\d+k', h264_url):
http_url = h264_url
elif format_id == 'rtmp':
streamer = talk_info.get('streamer')
if not streamer:
continue
formats.extend({
'format_id': '%s-%s' % (format_id, resource.get('name')),
'url': streamer,
'play_path': resource['file'],
'ext': 'flv',
'width': int_or_none(resource.get('width')),
'height': int_or_none(resource.get('height')),
'tbr': int_or_none(resource.get('bitrate')),
} for resource in resources if resource.get('file'))
if http_url:
m3u8_formats = [f for f in formats if f.get('protocol') == 'm3u8' and f.get('vcodec') != 'none']
for m3u8_format in m3u8_formats:
bitrate = self._search_regex(r'(\d+k)', m3u8_format['url'], 'bitrate', default=None)
if not bitrate:
continue
bitrate_url = re.sub(r'\d+k', bitrate, http_url)
if not self._is_valid_url(
bitrate_url, video_id, '%s bitrate' % bitrate):
continue
f = m3u8_format.copy()
f.update({
'url': bitrate_url,
'format_id': m3u8_format['format_id'].replace('hls', 'http'),
'protocol': 'http',
})
if f.get('acodec') == 'none':
del f['acodec']
formats.append(f)
audio_download = talk_info.get('audioDownload')
if audio_download:
formats.append({
'url': audio_download,
'format_id': 'audio',
'vcodec': 'none',
})
if not formats:
external = playerData.get('external') or {}
service = external.get('service') or ''
ext_url = external.get('code') if service.lower() == 'youtube' else None
return self.url_result(ext_url or external['uri'])
self._sort_formats(formats)
thumbnail = playerData.get('thumb') or self._og_search_property('image', webpage)
if thumbnail:
# trim thumbnail resize parameters
thumbnail = thumbnail.split('?')[0]
return {
'id': video_id,
'title': talk_info.get('title') or self._og_search_title(webpage),
'uploader': talk_info.get('presenterDisplayName'),
'thumbnail': thumbnail,
'description': talk_info.get('description') or self._og_search_description(webpage),
'subtitles': subtitles,
'formats': formats,
'duration': talk_info.get('duration') or parse_duration(self._og_search_property('video:duration', webpage)),
'view_count': str_to_int(talk_info.get('viewedCount')),
'upload_date': unified_strdate(talk_info.get('publishedAt')),
'release_date': unified_strdate(talk_info.get('recordedOn')),
'tags': try_get(playerData, lambda x: x['targeting']['tag'].split(',')),
}
class TedSeriesIE(TedBaseIE):
_VALID_URL = fr'{TedBaseIE._VALID_URL_BASE.format(type=r"series")}(?:#season_(?P<season>\d+))?'
_TESTS = [{
'url': 'https://www.ted.com/series/small_thing_big_idea',
'info_dict': {
'id': '3',
'title': 'Small Thing Big Idea',
'series': 'Small Thing Big Idea',
'description': 'md5:6869ca52cec661aef72b3e9f7441c55c'
},
'playlist_mincount': 16,
}, {
'url': 'https://www.ted.com/series/the_way_we_work#season_2',
'info_dict': {
'id': '8_2',
'title': 'The Way We Work Season 2',
'series': 'The Way We Work',
'description': 'md5:59469256e533e1a48c4aa926a382234c',
'season_number': 2
},
'playlist_mincount': 8,
}]
def _real_extract(self, url):
display_id, season = self._match_valid_url(url).group('id', 'season')
webpage = self._download_webpage(url, display_id, 'Downloading series webpage')
info = self._search_nextjs_data(webpage, display_id)['props']['pageProps']
entries = itertools.chain.from_iterable(
self._parse_playlist(s) for s in info['seasons'] if season in [None, s.get('seasonNumber')])
series_id = try_get(info, lambda x: x['series']['id'])
series_name = try_get(info, lambda x: x['series']['name']) or self._og_search_title(webpage, fatal=False)
return self.playlist_result(
entries,
f'{series_id}_{season}' if season and series_id else series_id,
f'{series_name} Season {season}' if season else series_name,
self._og_search_description(webpage),
series=series_name, season_number=int_or_none(season))
class TedPlaylistIE(TedBaseIE):
_VALID_URL = TedBaseIE._VALID_URL_BASE.format(type=r'playlists(?:/\d+)?')
_TESTS = [{
'url': 'https://www.ted.com/playlists/171/the_most_popular_talks_of_all',
'info_dict': {
'id': '171',
'title': 'The most popular talks of all time',
'description': 'md5:d2f22831dc86c7040e733a3cb3993d78'
},
'playlist_mincount': 25,
}]
def _real_extract(self, url):
display_id = self._match_id(url)
webpage = self._download_webpage(url, display_id)
playlist = self._search_nextjs_data(webpage, display_id)['props']['pageProps']['playlist']
return self.playlist_result(
self._parse_playlist(playlist), playlist.get('id'),
playlist.get('title') or self._og_search_title(webpage, default='').replace(' | TED Talks', '') or None,
self._og_search_description(webpage))
class TedEmbedIE(InfoExtractor):
_VALID_URL = r'https?://embed(?:-ssl)?\.ted\.com/'
_EMBED_REGEX = [rf'<iframe[^>]+?src=(["\'])(?P<url>{_VALID_URL}.+?)\1']
_TESTS = [{
'url': 'https://embed.ted.com/talks/janet_stovall_how_to_get_serious_about_diversity_and_inclusion_in_the_workplace',
'info_dict': {
'id': '21802',
'ext': 'mp4',
'title': 'How to get serious about diversity and inclusion in the workplace',
'description': 'md5:0978aafe396e05341f8ecc795d22189d',
'view_count': int,
'tags': list,
'uploader': 'Janet Stovall',
'duration': 664.0,
'upload_date': '20180822',
'release_date': '20180719',
'thumbnail': r're:http.*\.jpg',
},
}]
def _real_extract(self, url):
return self.url_result(re.sub(r'://embed(-ssl)?', '://www', url), TedTalkIE.ie_key())
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