libraryofcongress.py (5029B)
1 # coding: utf-8 2 from __future__ import unicode_literals 3 4 import re 5 6 from .common import InfoExtractor 7 8 from ..utils import ( 9 determine_ext, 10 float_or_none, 11 int_or_none, 12 parse_filesize, 13 ) 14 15 16 class LibraryOfCongressIE(InfoExtractor): 17 IE_NAME = 'loc' 18 IE_DESC = 'Library of Congress' 19 _VALID_URL = r'https?://(?:www\.)?loc\.gov/(?:item/|today/cyberlc/feature_wdesc\.php\?.*\brec=)(?P<id>[0-9a-z_.]+)' 20 _TESTS = [{ 21 # embedded via <div class="media-player" 22 'url': 'http://loc.gov/item/90716351/', 23 'md5': '6ec0ae8f07f86731b1b2ff70f046210a', 24 'info_dict': { 25 'id': '90716351', 26 'ext': 'mp4', 27 'title': "Pa's trip to Mars", 28 'duration': 0, 29 'view_count': int, 30 }, 31 }, { 32 # webcast embedded via mediaObjectId 33 'url': 'https://www.loc.gov/today/cyberlc/feature_wdesc.php?rec=5578', 34 'info_dict': { 35 'id': '5578', 36 'ext': 'mp4', 37 'title': 'Help! Preservation Training Needs Here, There & Everywhere', 38 'duration': 3765, 39 'view_count': int, 40 'subtitles': 'mincount:1', 41 }, 42 'params': { 43 'skip_download': True, 44 }, 45 }, { 46 # with direct download links 47 'url': 'https://www.loc.gov/item/78710669/', 48 'info_dict': { 49 'id': '78710669', 50 'ext': 'mp4', 51 'title': 'La vie et la passion de Jesus-Christ', 52 'duration': 0, 53 'view_count': int, 54 'formats': 'mincount:4', 55 }, 56 'params': { 57 'skip_download': True, 58 }, 59 }, { 60 'url': 'https://www.loc.gov/item/ihas.200197114/', 61 'only_matching': True, 62 }, { 63 'url': 'https://www.loc.gov/item/afc1981005_afs20503/', 64 'only_matching': True, 65 }] 66 67 def _real_extract(self, url): 68 video_id = self._match_id(url) 69 webpage = self._download_webpage(url, video_id) 70 71 media_id = self._search_regex( 72 (r'id=(["\'])media-player-(?P<id>.+?)\1', 73 r'<video[^>]+id=(["\'])uuid-(?P<id>.+?)\1', 74 r'<video[^>]+data-uuid=(["\'])(?P<id>.+?)\1', 75 r'mediaObjectId\s*:\s*(["\'])(?P<id>.+?)\1', 76 r'data-tab="share-media-(?P<id>[0-9A-F]{32})"'), 77 webpage, 'media id', group='id') 78 79 data = self._download_json( 80 'https://media.loc.gov/services/v1/media?id=%s&context=json' % media_id, 81 media_id)['mediaObject'] 82 83 derivative = data['derivatives'][0] 84 media_url = derivative['derivativeUrl'] 85 86 title = derivative.get('shortName') or data.get('shortName') or self._og_search_title( 87 webpage) 88 89 # Following algorithm was extracted from setAVSource js function 90 # found in webpage 91 media_url = media_url.replace('rtmp', 'https') 92 93 is_video = data.get('mediaType', 'v').lower() == 'v' 94 ext = determine_ext(media_url) 95 if ext not in ('mp4', 'mp3'): 96 media_url += '.mp4' if is_video else '.mp3' 97 98 formats = [] 99 if '/vod/mp4:' in media_url: 100 formats.append({ 101 'url': media_url.replace('/vod/mp4:', '/hls-vod/media/') + '.m3u8', 102 'format_id': 'hls', 103 'ext': 'mp4', 104 'protocol': 'm3u8_native', 105 'quality': 1, 106 }) 107 http_format = { 108 'url': re.sub(r'(://[^/]+/)(?:[^/]+/)*(?:mp4|mp3):', r'\1', media_url), 109 'format_id': 'http', 110 'quality': 1, 111 } 112 if not is_video: 113 http_format['vcodec'] = 'none' 114 formats.append(http_format) 115 116 download_urls = set() 117 for m in re.finditer( 118 r'<option[^>]+value=(["\'])(?P<url>.+?)\1[^>]+data-file-download=[^>]+>\s*(?P<id>.+?)(?:(?: |\s+)\((?P<size>.+?)\))?\s*<', webpage): 119 format_id = m.group('id').lower() 120 if format_id in ('gif', 'jpeg'): 121 continue 122 download_url = m.group('url') 123 if download_url in download_urls: 124 continue 125 download_urls.add(download_url) 126 formats.append({ 127 'url': download_url, 128 'format_id': format_id, 129 'filesize_approx': parse_filesize(m.group('size')), 130 }) 131 132 self._sort_formats(formats) 133 134 duration = float_or_none(data.get('duration')) 135 view_count = int_or_none(data.get('viewCount')) 136 137 subtitles = {} 138 cc_url = data.get('ccUrl') 139 if cc_url: 140 subtitles.setdefault('en', []).append({ 141 'url': cc_url, 142 'ext': 'ttml', 143 }) 144 145 return { 146 'id': video_id, 147 'title': title, 148 'thumbnail': self._og_search_thumbnail(webpage, default=None), 149 'duration': duration, 150 'view_count': view_count, 151 'formats': formats, 152 'subtitles': subtitles, 153 }