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youtube-dl

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

mit.py (5210B)

    

  1. from __future__ import unicode_literals
  3. import re
  4. import json
  6. from .common import InfoExtractor
  7. from .youtube import YoutubeIE
  8. from ..utils import (
  9.     clean_html,
  10.     ExtractorError,
  11.     get_element_by_id,
  12. )
  15. class TechTVMITIE(InfoExtractor):
  16.     IE_NAME = 'techtv.mit.edu'
  17.     _VALID_URL = r'https?://techtv\.mit\.edu/(?:videos|embeds)/(?P<id>\d+)'
  19.     _TEST = {
  20.         'url': 'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set',
  21.         'md5': '00a3a27ee20d44bcaa0933ccec4a2cf7',
  22.         'info_dict': {
  23.             'id': '25418',
  24.             'ext': 'mp4',
  25.             'title': 'MIT DNA and Protein Sets',
  26.             'description': 'md5:46f5c69ce434f0a97e7c628cc142802d',
  27.         },
  28.     }
  30.     def _real_extract(self, url):
  31.         video_id = self._match_id(url)
  32.         raw_page = self._download_webpage(
  33.             'http://techtv.mit.edu/videos/%s' % video_id, video_id)
  34.         clean_page = re.compile(r'<!--.*?-->', re.S).sub('', raw_page)
  36.         base_url = self._proto_relative_url(self._search_regex(
  37.             r'ipadUrl: \'(.+?cloudfront.net/)', raw_page, 'base url'), 'http:')
  38.         formats_json = self._search_regex(
  39.             r'bitrates: (\[.+?\])', raw_page, 'video formats')
  40.         formats_mit = json.loads(formats_json)
  41.         formats = [
  42.             {
  43.                 'format_id': f['label'],
  44.                 'url': base_url + f['url'].partition(':')[2],
  45.                 'ext': f['url'].partition(':')[0],
  46.                 'format': f['label'],
  47.                 'width': f['width'],
  48.                 'vbr': f['bitrate'],
  49.             }
  50.             for f in formats_mit
  51.         ]
  53.         title = get_element_by_id('edit-title', clean_page)
  54.         description = clean_html(get_element_by_id('edit-description', clean_page))
  55.         thumbnail = self._search_regex(
  56.             r'playlist:.*?url: \'(.+?)\'',
  57.             raw_page, 'thumbnail', flags=re.DOTALL)
  59.         return {
  60.             'id': video_id,
  61.             'title': title,
  62.             'formats': formats,
  63.             'description': description,
  64.             'thumbnail': thumbnail,
  65.         }
  68. class OCWMITIE(InfoExtractor):
  69.     IE_NAME = 'ocw.mit.edu'
  70.     _VALID_URL = r'^https?://ocw\.mit\.edu/courses/(?P<topic>[a-z0-9\-]+)'
  71.     _BASE_URL = 'http://ocw.mit.edu/'
  73.     _TESTS = [
  74.         {
  75.             'url': 'http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-041-probabilistic-systems-analysis-and-applied-probability-fall-2010/video-lectures/lecture-7-multiple-variables-expectations-independence/',
  76.             'info_dict': {
  77.                 'id': 'EObHWIEKGjA',
  78.                 'ext': 'webm',
  79.                 'title': 'Lecture 7: Multiple Discrete Random Variables: Expectations, Conditioning, Independence',
  80.                 'description': 'In this lecture, the professor discussed multiple random variables, expectations, and binomial distribution.',
  81.                 'upload_date': '20121109',
  82.                 'uploader_id': 'MIT',
  83.                 'uploader': 'MIT OpenCourseWare',
  84.             }
  85.         },
  86.         {
  87.             'url': 'http://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/1.-differentiation/part-a-definition-and-basic-rules/session-1-introduction-to-derivatives/',
  88.             'info_dict': {
  89.                 'id': '7K1sB05pE0A',
  90.                 'ext': 'mp4',
  91.                 'title': 'Session 1: Introduction to Derivatives',
  92.                 'upload_date': '20090818',
  93.                 'uploader_id': 'MIT',
  94.                 'uploader': 'MIT OpenCourseWare',
  95.                 'description': 'This section contains lecture video excerpts, lecture notes, an interactive mathlet with supporting documents, and problem solving videos.',
  96.             }
  97.         }
  98.     ]
  100.     def _real_extract(self, url):
  101.         mobj = re.match(self._VALID_URL, url)
  102.         topic = mobj.group('topic')
  104.         webpage = self._download_webpage(url, topic)
  105.         title = self._html_search_meta('WT.cg_s', webpage)
  106.         description = self._html_search_meta('Description', webpage)
  108.         # search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, start, stop, captions_file)
  109.         embed_chapter_media = re.search(r'ocw_embed_chapter_media\((.+?)\)', webpage)
  110.         if embed_chapter_media:
  111.             metadata = re.sub(r'[\'"]', '', embed_chapter_media.group(1))
  112.             metadata = re.split(r', ?', metadata)
  113.             yt = metadata[1]
  114.         else:
  115.             # search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, captions_file)
  116.             embed_media = re.search(r'ocw_embed_media\((.+?)\)', webpage)
  117.             if embed_media:
  118.                 metadata = re.sub(r'[\'"]', '', embed_media.group(1))
  119.                 metadata = re.split(r', ?', metadata)
  120.                 yt = metadata[1]
  121.             else:
  122.                 raise ExtractorError('Unable to find embedded YouTube video.')
  123.         video_id = YoutubeIE.extract_id(yt)
  125.         return {
  126.             '_type': 'url_transparent',
  127.             'id': video_id,
  128.             'title': title,
  129.             'description': description,
  130.             'url': yt,
  131.             'ie_key': 'Youtube',
  132.         }