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[nebula] Add extractor (watchnebula.com) (#122)
Authored by: hheimbuerger
This commit is contained in:
Henrik Heimbuerger
pukkandan
parent
384fb069ec
commit
f1823403b0
@ -794,8 +794,9 @@
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NJoyEmbedIE,
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)
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from .ndtv import NDTVIE
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from .netzkino import NetzkinoIE
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from .nebula import NebulaIE
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from .nerdcubed import NerdCubedFeedIE
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from .netzkino import NetzkinoIE
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from .neteasemusic import (
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NetEaseMusicIE,
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NetEaseMusicAlbumIE,
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197
yt_dlp/extractor/nebula.py
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197
yt_dlp/extractor/nebula.py
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@ -0,0 +1,197 @@
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# coding: utf-8
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from __future__ import unicode_literals
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import json
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from .common import InfoExtractor
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from ..compat import compat_str
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from ..utils import (
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ExtractorError,
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parse_iso8601,
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try_get,
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urljoin,
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)
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class NebulaIE(InfoExtractor):
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_VALID_URL = r'https?://(?:www\.)?watchnebula\.com/videos/(?P<id>[-\w]+)'
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_TESTS = [
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{
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'url': 'https://watchnebula.com/videos/that-time-disney-remade-beauty-and-the-beast',
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'md5': 'fe79c4df8b3aa2fea98a93d027465c7e',
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'info_dict': {
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'id': '5c271b40b13fd613090034fd',
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'ext': 'mp4',
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'title': 'That Time Disney Remade Beauty and the Beast',
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'description': 'Note: this video was originally posted on YouTube with the sponsor read included. We weren’t able to remove it without reducing video quality, so it’s presented here in its original context.',
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'upload_date': '20180731',
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'timestamp': 1533009600,
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'channel': 'Lindsay Ellis',
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'uploader': 'Lindsay Ellis',
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},
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'params': {
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'usenetrc': True,
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},
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'skip': 'All Nebula content requires authentication',
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},
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{
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'url': 'https://watchnebula.com/videos/the-logistics-of-d-day-landing-craft-how-the-allies-got-ashore',
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'md5': '6d4edd14ce65720fa63aba5c583fb328',
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'info_dict': {
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'id': '5e7e78171aaf320001fbd6be',
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'ext': 'mp4',
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'title': 'Landing Craft - How The Allies Got Ashore',
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'description': r're:^In this episode we explore the unsung heroes of D-Day, the landing craft.',
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'upload_date': '20200327',
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'timestamp': 1585348140,
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'channel': 'The Logistics of D-Day',
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'uploader': 'The Logistics of D-Day',
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},
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'params': {
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'usenetrc': True,
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},
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'skip': 'All Nebula content requires authentication',
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},
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{
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'url': 'https://watchnebula.com/videos/money-episode-1-the-draw',
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'md5': '8c7d272910eea320f6f8e6d3084eecf5',
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'info_dict': {
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'id': '5e779ebdd157bc0001d1c75a',
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'ext': 'mp4',
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'title': 'Episode 1: The Draw',
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'description': r'contains:There’s free money on offer… if the players can all work together.',
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'upload_date': '20200323',
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'timestamp': 1584980400,
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'channel': 'Tom Scott Presents: Money',
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'uploader': 'Tom Scott Presents: Money',
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},
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'params': {
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'usenetrc': True,
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},
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'skip': 'All Nebula content requires authentication',
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},
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]
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_NETRC_MACHINE = 'watchnebula'
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def _retrieve_nebula_auth(self, video_id):
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"""
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Log in to Nebula, and returns a Nebula API token
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"""
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username, password = self._get_login_info()
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if not (username and password):
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self.raise_login_required()
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self.report_login()
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data = json.dumps({'email': username, 'password': password}).encode('utf8')
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response = self._download_json(
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'https://api.watchnebula.com/api/v1/auth/login/',
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data=data, fatal=False, video_id=video_id,
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headers={
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'content-type': 'application/json',
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# Submitting the 'sessionid' cookie always causes a 403 on auth endpoint
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'cookie': ''
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},
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note='Authenticating to Nebula with supplied credentials',
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errnote='Authentication failed or rejected')
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if not response or not response.get('key'):
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self.raise_login_required()
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return response['key']
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def _retrieve_zype_api_key(self, page_url, display_id):
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"""
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Retrieves the Zype API key
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"""
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# Find the js that has the API key from the webpage and download it
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webpage = self._download_webpage(page_url, video_id=display_id)
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main_script_relpath = self._search_regex(
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r'<script[^>]*src="(?P<script_relpath>[^"]*main.[0-9a-f]*.chunk.js)"[^>]*>', webpage,
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group='script_relpath', name='script relative path', fatal=True)
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main_script_abspath = urljoin(page_url, main_script_relpath)
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main_script = self._download_webpage(main_script_abspath, video_id=display_id,
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note='Retrieving Zype API key')
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api_key = self._search_regex(
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r'REACT_APP_ZYPE_API_KEY\s*:\s*"(?P<api_key>[\w-]*)"', main_script,
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group='api_key', name='API key', fatal=True)
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return api_key
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def _call_zype_api(self, path, params, video_id, api_key, note):
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"""
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A helper for making calls to the Zype API.
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"""
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query = {'api_key': api_key, 'per_page': 1}
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query.update(params)
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return self._download_json('https://api.zype.com' + path, video_id, query=query, note=note)
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def _call_nebula_api(self, path, video_id, access_token, note):
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"""
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A helper for making calls to the Nebula API.
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"""
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return self._download_json('https://api.watchnebula.com/api/v1' + path, video_id, headers={
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'Authorization': 'Token {access_token}'.format(access_token=access_token)
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}, note=note)
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def _fetch_zype_access_token(self, video_id, nebula_token):
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user_object = self._call_nebula_api('/auth/user/', video_id, nebula_token, note='Retrieving Zype access token')
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access_token = try_get(user_object, lambda x: x['zype_auth_info']['access_token'], compat_str)
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if not access_token:
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if try_get(user_object, lambda x: x['is_subscribed'], bool):
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# TODO: Reimplement the same Zype token polling the Nebula frontend implements
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# see https://github.com/ytdl-org/youtube-dl/pull/24805#issuecomment-749231532
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raise ExtractorError(
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'Unable to extract Zype access token from Nebula API authentication endpoint. '
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'Open an arbitrary video in a browser with this account to generate a token',
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expected=True)
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raise ExtractorError('Unable to extract Zype access token from Nebula API authentication endpoint')
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return access_token
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def _extract_channel_title(self, video_meta):
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# TODO: Implement the API calls giving us the channel list,
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# so that we can do the title lookup and then figure out the channel URL
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categories = video_meta.get('categories', []) if video_meta else []
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# the channel name is the value of the first category
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for category in categories:
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if category.get('value'):
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return category['value'][0]
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def _real_extract(self, url):
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display_id = self._match_id(url)
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nebula_token = self._retrieve_nebula_auth(display_id)
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api_key = self._retrieve_zype_api_key(url, display_id)
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response = self._call_zype_api('/videos', {'friendly_title': display_id},
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display_id, api_key, note='Retrieving metadata from Zype')
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if len(response.get('response') or []) != 1:
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raise ExtractorError('Unable to find video on Zype API')
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video_meta = response['response'][0]
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video_id = video_meta['_id']
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zype_access_token = self._fetch_zype_access_token(display_id, nebula_token=nebula_token)
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channel_title = self._extract_channel_title(video_meta)
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return {
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'id': video_id,
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'display_id': display_id,
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'_type': 'url_transparent',
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'ie_key': 'Zype',
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'url': 'https://player.zype.com/embed/%s.html?access_token=%s' % (video_id, zype_access_token),
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'title': video_meta.get('title'),
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'description': video_meta.get('description'),
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'timestamp': parse_iso8601(video_meta.get('published_at')),
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'thumbnails': [
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{
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'id': tn.get('name'), # this appears to be null
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'url': tn['url'],
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'width': tn.get('width'),
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'height': tn.get('height'),
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} for tn in video_meta.get('thumbnails', [])],
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'duration': video_meta.get('duration'),
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'channel': channel_title,
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'uploader': channel_title, # we chose uploader = channel name
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# TODO: uploader_url, channel_id, channel_url
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}
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