# coding: utf-8 from __future__ import unicode_literals import re from .common import InfoExtractor from ..utils import ( determine_ext, float_or_none, int_or_none, parse_filesize, ) class LibraryOfCongressIE(InfoExtractor): IE_NAME = 'loc' IE_DESC = 'Library of Congress' _VALID_URL = r'https?://(?:www\.)?loc\.gov/(?:item/|today/cyberlc/feature_wdesc\.php\?.*\brec=)(?P<id>[0-9]+)' _TESTS = [{ # embedded via <div class="media-player" 'url': 'http://loc.gov/item/90716351/', 'md5': '353917ff7f0255aa6d4b80a034833de8', 'info_dict': { 'id': '90716351', 'ext': 'mp4', 'title': "Pa's trip to Mars", 'thumbnail': r're:^https?://.*\.jpg$', 'duration': 0, 'view_count': int, }, }, { # webcast embedded via mediaObjectId 'url': 'https://www.loc.gov/today/cyberlc/feature_wdesc.php?rec=5578', 'info_dict': { 'id': '5578', 'ext': 'mp4', 'title': 'Help! Preservation Training Needs Here, There & Everywhere', 'duration': 3765, 'view_count': int, 'subtitles': 'mincount:1', }, 'params': { 'skip_download': True, }, }, { # with direct download links 'url': 'https://www.loc.gov/item/78710669/', 'info_dict': { 'id': '78710669', 'ext': 'mp4', 'title': 'La vie et la passion de Jesus-Christ', 'duration': 0, 'view_count': int, 'formats': 'mincount:4', }, 'params': { 'skip_download': True, }, }] def _real_extract(self, url): video_id = self._match_id(url) webpage = self._download_webpage(url, video_id) media_id = self._search_regex( (r'id=(["\'])media-player-(?P<id>.+?)\1', r'<video[^>]+id=(["\'])uuid-(?P<id>.+?)\1', r'<video[^>]+data-uuid=(["\'])(?P<id>.+?)\1', r'mediaObjectId\s*:\s*(["\'])(?P<id>.+?)\1'), webpage, 'media id', group='id') data = self._download_json( 'https://media.loc.gov/services/v1/media?id=%s&context=json' % media_id, video_id)['mediaObject'] derivative = data['derivatives'][0] media_url = derivative['derivativeUrl'] title = derivative.get('shortName') or data.get('shortName') or self._og_search_title( webpage) # Following algorithm was extracted from setAVSource js function # found in webpage media_url = media_url.replace('rtmp', 'https') is_video = data.get('mediaType', 'v').lower() == 'v' ext = determine_ext(media_url) if ext not in ('mp4', 'mp3'): media_url += '.mp4' if is_video else '.mp3' if 'vod/mp4:' in media_url: formats = [{ 'url': media_url.replace('vod/mp4:', 'hls-vod/media/') + '.m3u8', 'format_id': 'hls', 'ext': 'mp4', 'protocol': 'm3u8_native', 'quality': 1, }] elif 'vod/mp3:' in media_url: formats = [{ 'url': media_url.replace('vod/mp3:', ''), 'vcodec': 'none', }] download_urls = set() for m in re.finditer( r'<option[^>]+value=(["\'])(?P<url>.+?)\1[^>]+data-file-download=[^>]+>\s*(?P<id>.+?)(?:(?: |\s+)\((?P<size>.+?)\))?\s*<', webpage): format_id = m.group('id').lower() if format_id == 'gif': continue download_url = m.group('url') if download_url in download_urls: continue download_urls.add(download_url) formats.append({ 'url': download_url, 'format_id': format_id, 'filesize_approx': parse_filesize(m.group('size')), }) self._sort_formats(formats) duration = float_or_none(data.get('duration')) view_count = int_or_none(data.get('viewCount')) subtitles = {} cc_url = data.get('ccUrl') if cc_url: subtitles.setdefault('en', []).append({ 'url': cc_url, 'ext': 'ttml', }) return { 'id': video_id, 'title': title, 'thumbnail': self._og_search_thumbnail(webpage, default=None), 'duration': duration, 'view_count': view_count, 'formats': formats, 'subtitles': subtitles, }