2 from __future__ import unicode_literals
4 from .common import InfoExtractor
13 class LibraryOfCongressIE(InfoExtractor):
15 IE_DESC = 'Library of Congress'
16 _VALID_URL = r'https?://(?:www\.)?loc\.gov/item/(?P<id>[0-9]+)'
18 'url': 'http://loc.gov/item/90716351/',
19 'md5': '353917ff7f0255aa6d4b80a034833de8',
23 'title': "Pa's trip to Mars",
24 'thumbnail': 're:^https?://.*\.jpg$',
30 def _real_extract(self, url):
31 video_id = self._match_id(url)
32 webpage = self._download_webpage(url, video_id)
34 media_id = self._search_regex(
35 (r'id=(["\'])media-player-(?P<id>.+?)\1',
36 r'<video[^>]+id=(["\'])uuid-(?P<id>.+?)\1',
37 r'<video[^>]+data-uuid=(["\'])(?P<id>.+?)\1'),
38 webpage, 'media id', group='id')
40 data = self._parse_json(
41 self._download_webpage(
42 'https://media.loc.gov/services/v1/media?id=%s&context=json' % media_id,
44 video_id)['mediaObject']
46 derivative = data['derivatives'][0]
47 media_url = derivative['derivativeUrl']
49 # Following algorithm was extracted from setAVSource js function
51 media_url = media_url.replace('rtmp', 'https')
53 is_video = data.get('mediaType', 'v').lower() == 'v'
54 ext = determine_ext(media_url)
55 if ext not in ('mp4', 'mp3'):
56 media_url += '.mp4' if is_video else '.mp3'
58 if 'vod/mp4:' in media_url:
60 'url': media_url.replace('vod/mp4:', 'hls-vod/media/') + '.m3u8',
63 'protocol': 'm3u8_native',
65 elif 'vod/mp3:' in media_url:
67 'url': media_url.replace('vod/mp3:', ''),
71 self._sort_formats(formats)
73 title = derivative.get('shortName') or data.get('shortName') or self._og_search_title(webpage)
74 duration = float_or_none(data.get('duration'))
75 view_count = int_or_none(data.get('viewCount'))
80 'thumbnail': self._og_search_thumbnail(webpage),
82 'view_count': view_count,