1 from __future__ import unicode_literals
6 from .common import InfoExtractor
7 from .youtube import YoutubeIE
15 class TechTVMITIE(InfoExtractor):
16 IE_NAME = 'techtv.mit.edu'
17 _VALID_URL = r'https?://techtv\.mit\.edu/(?:videos|embeds)/(?P<id>\d+)'
20 'url': 'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set',
21 'md5': '00a3a27ee20d44bcaa0933ccec4a2cf7',
25 'title': 'MIT DNA and Protein Sets',
26 'description': 'md5:46f5c69ce434f0a97e7c628cc142802d',
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)
43 'format_id': f['label'],
44 'url': base_url + f['url'].partition(':')[2],
45 'ext': f['url'].partition(':')[0],
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)
63 'description': description,
64 'thumbnail': thumbnail,
68 class MITIE(TechTVMITIE):
69 IE_NAME = 'video.mit.edu'
70 _VALID_URL = r'https?://video\.mit\.edu/watch/(?P<title>[^/]+)'
73 'url': 'http://video.mit.edu/watch/the-government-is-profiling-you-13222/',
74 'md5': '7db01d5ccc1895fc5010e9c9e13648da',
78 'title': 'The Government is Profiling You',
79 'description': 'md5:ad5795fe1e1623b73620dbfd47df9afd',
83 def _real_extract(self, url):
84 mobj = re.match(self._VALID_URL, url)
85 page_title = mobj.group('title')
86 webpage = self._download_webpage(url, page_title)
87 embed_url = self._search_regex(
88 r'<iframe .*?src="(.+?)"', webpage, 'embed url')
89 return self.url_result(embed_url, ie='TechTVMIT')
92 class OCWMITIE(InfoExtractor):
93 IE_NAME = 'ocw.mit.edu'
94 _VALID_URL = r'^http://ocw\.mit\.edu/courses/(?P<topic>[a-z0-9\-]+)'
95 _BASE_URL = 'http://ocw.mit.edu/'
99 '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/',
103 'title': 'Lecture 7: Multiple Discrete Random Variables: Expectations, Conditioning, Independence',
104 'description': 'In this lecture, the professor discussed multiple random variables, expectations, and binomial distribution.',
105 'upload_date': '20121109',
106 'uploader_id': 'MIT',
107 'uploader': 'MIT OpenCourseWare',
111 '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/',
115 'title': 'Session 1: Introduction to Derivatives',
116 'upload_date': '20090818',
117 'uploader_id': 'MIT',
118 'uploader': 'MIT OpenCourseWare',
119 'description': 'This section contains lecture video excerpts, lecture notes, an interactive mathlet with supporting documents, and problem solving videos.',
124 def _real_extract(self, url):
125 mobj = re.match(self._VALID_URL, url)
126 topic = mobj.group('topic')
128 webpage = self._download_webpage(url, topic)
129 title = self._html_search_meta('WT.cg_s', webpage)
130 description = self._html_search_meta('Description', webpage)
132 # search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, start, stop, captions_file)
133 embed_chapter_media = re.search(r'ocw_embed_chapter_media\((.+?)\)', webpage)
134 if embed_chapter_media:
135 metadata = re.sub(r'[\'"]', '', embed_chapter_media.group(1))
136 metadata = re.split(r', ?', metadata)
139 # search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, captions_file)
140 embed_media = re.search(r'ocw_embed_media\((.+?)\)', webpage)
142 metadata = re.sub(r'[\'"]', '', embed_media.group(1))
143 metadata = re.split(r', ?', metadata)
146 raise ExtractorError('Unable to find embedded YouTube video.')
147 video_id = YoutubeIE.extract_id(yt)
150 '_type': 'url_transparent',
153 'description': description,