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youtube-dl

[mirror] Download/Watch videos from video hostersgit clone https://hacktivis.me/git/mirror/youtube-dl.git

libraryofcongress.py (5029B)

    

  1. # coding: utf-8
  2. from __future__ import unicode_literals
  4. import re
  6. from .common import InfoExtractor
  8. from ..utils import (
  9.     determine_ext,
  10.     float_or_none,
  11.     int_or_none,
  12.     parse_filesize,
  13. )
  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.     }]
  67.     def _real_extract(self, url):
  68.         video_id = self._match_id(url)
  69.         webpage = self._download_webpage(url, video_id)
  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')
  79.         data = self._download_json(
  80.             'https://media.loc.gov/services/v1/media?id=%s&context=json' % media_id,
  81.             media_id)['mediaObject']
  83.         derivative = data['derivatives'][0]
  84.         media_url = derivative['derivativeUrl']
  86.         title = derivative.get('shortName') or data.get('shortName') or self._og_search_title(
  87.             webpage)
  89.         # Following algorithm was extracted from setAVSource js function
  90.         # found in webpage
  91.         media_url = media_url.replace('rtmp', 'https')
  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'
  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)
  116.         download_urls = set()
  117.         for m in re.finditer(
  118.                 r'<option[^>]+value=(["\'])(?P<url>.+?)\1[^>]+data-file-download=[^>]+>\s*(?P<id>.+?)(?:(?:&nbsp;|\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.             })
  132.         self._sort_formats(formats)
  134.         duration = float_or_none(data.get('duration'))
  135.         view_count = int_or_none(data.get('viewCount'))
  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.             })
  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.         }