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# coding: utf-8
from __future__ import unicode_literals
from .common import InfoExtractor
from ..utils import (
determine_ext,
float_or_none,
int_or_none,
)
class LibraryOfCongressIE(InfoExtractor):
IE_NAME = 'loc'
IE_DESC = 'Library of Congress'
_VALID_URL = r'https?://(?:www\.)?loc\.gov/item/(?P<id>[0-9]+)'
_TEST = {
'url': 'http://loc.gov/item/90716351/',
'md5': '353917ff7f0255aa6d4b80a034833de8',
'info_dict': {
'id': '90716351',
'ext': 'mp4',
'title': "Pa's trip to Mars",
'thumbnail': 're:^https?://.*\.jpg$',
'duration': 0,
'view_count': int,
},
}
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'),
webpage, 'media id', group='id')
data = self._parse_json(
self._download_webpage(
'https://media.loc.gov/services/v1/media?id=%s&context=json' % media_id,
video_id),
video_id)['mediaObject']
derivative = data['derivatives'][0]
media_url = derivative['derivativeUrl']
# 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',
}]
elif 'vod/mp3:' in media_url:
formats = [{
'url': media_url.replace('vod/mp3:', ''),
'vcodec': 'none',
}]
self._sort_formats(formats)
title = derivative.get('shortName') or data.get('shortName') or self._og_search_title(webpage)
duration = float_or_none(data.get('duration'))
view_count = int_or_none(data.get('viewCount'))
return {
'id': video_id,
'title': title,
'thumbnail': self._og_search_thumbnail(webpage),
'duration': duration,
'view_count': view_count,
'formats': formats,
}
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