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214 lines
8 KiB
Python
214 lines
8 KiB
Python
from __future__ import unicode_literals
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import re
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import json
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import time
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import hmac
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import binascii
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import hashlib
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from .common import InfoExtractor
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from ..compat import (
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compat_str,
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)
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from ..utils import (
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determine_ext,
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ExtractorError,
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xpath_with_ns,
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unsmuggle_url,
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int_or_none,
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)
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_x = lambda p: xpath_with_ns(p, {'smil': 'http://www.w3.org/2005/SMIL21/Language'})
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class ThePlatformIE(InfoExtractor):
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_VALID_URL = r'''(?x)
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(?:https?://(?:link|player)\.theplatform\.com/[sp]/(?P<provider_id>[^/]+)/
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(?:(?P<media>(?:[^/]+/)+select/media/)|(?P<config>(?:[^/\?]+/(?:swf|config)|onsite)/select/))?
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|theplatform:)(?P<id>[^/\?&]+)'''
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_TESTS = [{
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# from http://www.metacafe.com/watch/cb-e9I_cZgTgIPd/blackberrys_big_bold_z30/
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'url': 'http://link.theplatform.com/s/dJ5BDC/e9I_cZgTgIPd/meta.smil?format=smil&Tracking=true&mbr=true',
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'info_dict': {
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'id': 'e9I_cZgTgIPd',
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'ext': 'flv',
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'title': 'Blackberry\'s big, bold Z30',
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'description': 'The Z30 is Blackberry\'s biggest, baddest mobile messaging device yet.',
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'duration': 247,
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},
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'params': {
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# rtmp download
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'skip_download': True,
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},
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}, {
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# from http://www.cnet.com/videos/tesla-model-s-a-second-step-towards-a-cleaner-motoring-future/
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'url': 'http://link.theplatform.com/s/kYEXFC/22d_qsQ6MIRT',
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'info_dict': {
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'id': '22d_qsQ6MIRT',
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'ext': 'flv',
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'description': 'md5:ac330c9258c04f9d7512cf26b9595409',
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'title': 'Tesla Model S: A second step towards a cleaner motoring future',
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},
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'params': {
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# rtmp download
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'skip_download': True,
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}
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}, {
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'url': 'https://player.theplatform.com/p/D6x-PC/pulse_preview/embed/select/media/yMBg9E8KFxZD',
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'info_dict': {
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'id': 'yMBg9E8KFxZD',
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'ext': 'mp4',
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'description': 'md5:644ad9188d655b742f942bf2e06b002d',
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'title': 'HIGHLIGHTS: USA bag first ever series Cup win',
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}
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}, {
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'url': 'http://player.theplatform.com/p/NnzsPC/widget/select/media/4Y0TlYUr_ZT7',
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'only_matching': True,
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}]
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@staticmethod
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def _sign_url(url, sig_key, sig_secret, life=600, include_qs=False):
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flags = '10' if include_qs else '00'
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expiration_date = '%x' % (int(time.time()) + life)
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def str_to_hex(str):
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return binascii.b2a_hex(str.encode('ascii')).decode('ascii')
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def hex_to_str(hex):
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return binascii.a2b_hex(hex)
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relative_path = url.split('http://link.theplatform.com/s/')[1].split('?')[0]
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clear_text = hex_to_str(flags + expiration_date + str_to_hex(relative_path))
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checksum = hmac.new(sig_key.encode('ascii'), clear_text, hashlib.sha1).hexdigest()
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sig = flags + expiration_date + checksum + str_to_hex(sig_secret)
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return '%s&sig=%s' % (url, sig)
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def _real_extract(self, url):
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url, smuggled_data = unsmuggle_url(url, {})
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mobj = re.match(self._VALID_URL, url)
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provider_id = mobj.group('provider_id')
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video_id = mobj.group('id')
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if not provider_id:
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provider_id = 'dJ5BDC'
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path = provider_id
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if mobj.group('media'):
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path += '/media'
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path += '/' + video_id
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if smuggled_data.get('force_smil_url', False):
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smil_url = url
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elif mobj.group('config'):
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config_url = url + '&form=json'
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config_url = config_url.replace('swf/', 'config/')
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config_url = config_url.replace('onsite/', 'onsite/config/')
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config = self._download_json(config_url, video_id, 'Downloading config')
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if 'releaseUrl' in config:
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release_url = config['releaseUrl']
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else:
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release_url = 'http://link.theplatform.com/s/%s?mbr=true' % path
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smil_url = release_url + '&format=SMIL&formats=MPEG4&manifest=f4m'
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else:
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smil_url = 'http://link.theplatform.com/s/%s/meta.smil?format=smil&mbr=true' % path
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sig = smuggled_data.get('sig')
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if sig:
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smil_url = self._sign_url(smil_url, sig['key'], sig['secret'])
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meta = self._download_xml(smil_url, video_id)
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try:
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error_msg = next(
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n.attrib['abstract']
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for n in meta.findall(_x('.//smil:ref'))
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if n.attrib.get('title') == 'Geographic Restriction' or n.attrib.get('title') == 'Expired')
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except StopIteration:
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pass
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else:
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raise ExtractorError(error_msg, expected=True)
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info_url = 'http://link.theplatform.com/s/%s?format=preview' % path
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info_json = self._download_webpage(info_url, video_id)
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info = json.loads(info_json)
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subtitles = {}
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captions = info.get('captions')
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if isinstance(captions, list):
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for caption in captions:
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lang, src, mime = caption.get('lang', 'en'), caption.get('src'), caption.get('type')
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subtitles[lang] = [{
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'ext': 'srt' if mime == 'text/srt' else 'ttml',
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'url': src,
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}]
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head = meta.find(_x('smil:head'))
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body = meta.find(_x('smil:body'))
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f4m_node = body.find(_x('smil:seq//smil:video'))
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if f4m_node is None:
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f4m_node = body.find(_x('smil:seq/smil:video'))
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if f4m_node is not None and '.f4m' in f4m_node.attrib['src']:
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f4m_url = f4m_node.attrib['src']
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if 'manifest.f4m?' not in f4m_url:
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f4m_url += '?'
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# the parameters are from syfy.com, other sites may use others,
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# they also work for nbc.com
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f4m_url += '&g=UXWGVKRWHFSP&hdcore=3.0.3'
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formats = self._extract_f4m_formats(f4m_url, video_id)
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else:
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formats = []
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switch = body.find(_x('smil:switch'))
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if switch is None:
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switch = body.find(_x('smil:par//smil:switch'))
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if switch is None:
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switch = body.find(_x('smil:par/smil:switch'))
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if switch is None:
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switch = body.find(_x('smil:par'))
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if switch is not None:
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base_url = head.find(_x('smil:meta')).attrib['base']
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for f in switch.findall(_x('smil:video')):
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attr = f.attrib
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width = int_or_none(attr.get('width'))
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height = int_or_none(attr.get('height'))
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vbr = int_or_none(attr.get('system-bitrate'), 1000)
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format_id = '%dx%d_%dk' % (width, height, vbr)
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formats.append({
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'format_id': format_id,
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'url': base_url,
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'play_path': 'mp4:' + attr['src'],
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'ext': 'flv',
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'width': width,
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'height': height,
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'vbr': vbr,
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})
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else:
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switch = body.find(_x('smil:seq//smil:switch'))
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if switch is None:
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switch = body.find(_x('smil:seq/smil:switch'))
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for f in switch.findall(_x('smil:video')):
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attr = f.attrib
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vbr = int_or_none(attr.get('system-bitrate'), 1000)
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ext = determine_ext(attr['src'])
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if ext == 'once':
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ext = 'mp4'
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formats.append({
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'format_id': compat_str(vbr),
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'url': attr['src'],
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'vbr': vbr,
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'ext': ext,
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})
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self._sort_formats(formats)
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return {
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'id': video_id,
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'title': info['title'],
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'subtitles': subtitles,
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'formats': formats,
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'description': info['description'],
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'thumbnail': info['defaultThumbnailUrl'],
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'duration': int_or_none(info.get('duration'), 1000),
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}
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