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/|today/cyberlc/feature_wdesc\.php\?.*\brec=)(?P<id>[0-9]+)'
18 # embedded via <div class="media-player"
19 'url': 'http://loc.gov/item/90716351/',
20 'md5': '353917ff7f0255aa6d4b80a034833de8',
24 'title': "Pa's trip to Mars",
25 'thumbnail': 're:^https?://.*\.jpg$',
30 # webcast embedded via mediaObjectId
31 'url': 'https://www.loc.gov/today/cyberlc/feature_wdesc.php?rec=5578',
35 'title': 'Help! Preservation Training Needs Here, There & Everywhere',
38 'subtitles': 'mincount:1',
41 'skip_download': True,
45 def _real_extract(self, url):
46 video_id = self._match_id(url)
47 webpage = self._download_webpage(url, video_id)
49 media_id = self._search_regex(
50 (r'id=(["\'])media-player-(?P<id>.+?)\1',
51 r'<video[^>]+id=(["\'])uuid-(?P<id>.+?)\1',
52 r'<video[^>]+data-uuid=(["\'])(?P<id>.+?)\1',
53 r'mediaObjectId\s*:\s*(["\'])(?P<id>.+?)\1'),
54 webpage, 'media id', group='id')
56 data = self._download_json(
57 'https://media.loc.gov/services/v1/media?id=%s&context=json' % media_id,
58 video_id)['mediaObject']
60 derivative = data['derivatives'][0]
61 media_url = derivative['derivativeUrl']
63 # Following algorithm was extracted from setAVSource js function
65 media_url = media_url.replace('rtmp', 'https')
67 is_video = data.get('mediaType', 'v').lower() == 'v'
68 ext = determine_ext(media_url)
69 if ext not in ('mp4', 'mp3'):
70 media_url += '.mp4' if is_video else '.mp3'
72 if 'vod/mp4:' in media_url:
74 'url': media_url.replace('vod/mp4:', 'hls-vod/media/') + '.m3u8',
77 'protocol': 'm3u8_native',
79 elif 'vod/mp3:' in media_url:
81 'url': media_url.replace('vod/mp3:', ''),
85 self._sort_formats(formats)
87 title = derivative.get('shortName') or data.get('shortName') or self._og_search_title(webpage)
88 duration = float_or_none(data.get('duration'))
89 view_count = int_or_none(data.get('viewCount'))
92 cc_url = data.get('ccUrl')
94 subtitles.setdefault('en', []).append({
102 'thumbnail': self._og_search_thumbnail(webpage, default=None),
103 'duration': duration,
104 'view_count': view_count,
106 'subtitles': subtitles,