1 from __future__ import unicode_literals
6 from .common import InfoExtractor
7 from .youtube import YoutubeIE
18 class TechTVMITIE(InfoExtractor):
19 IE_NAME = 'techtv.mit.edu'
20 _VALID_URL = r'https?://techtv\.mit\.edu/(videos|embeds)/(?P<id>\d+)'
23 'url': 'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set',
24 'md5': '1f8cb3e170d41fd74add04d3c9330e5f',
28 'title': 'MIT DNA Learning Center Set',
29 'description': 'md5:82313335e8a8a3f243351ba55bc1b474',
33 def _real_extract(self, url):
34 mobj = re.match(self._VALID_URL, url)
35 video_id = mobj.group('id')
36 raw_page = self._download_webpage(
37 'http://techtv.mit.edu/videos/%s' % video_id, video_id)
38 clean_page = re.compile(r'<!--.*?-->', re.S).sub('', raw_page)
40 base_url = self._search_regex(
41 r'ipadUrl: \'(.+?cloudfront.net/)', raw_page, 'base url')
42 formats_json = self._search_regex(
43 r'bitrates: (\[.+?\])', raw_page, 'video formats')
44 formats_mit = json.loads(formats_json)
47 'format_id': f['label'],
48 'url': base_url + f['url'].partition(':')[2],
49 'ext': f['url'].partition(':')[0],
57 title = get_element_by_id('edit-title', clean_page)
58 description = clean_html(get_element_by_id('edit-description', clean_page))
59 thumbnail = self._search_regex(
60 r'playlist:.*?url: \'(.+?)\'',
61 raw_page, 'thumbnail', flags=re.DOTALL)
67 'description': description,
68 'thumbnail': thumbnail,
72 class MITIE(TechTVMITIE):
73 IE_NAME = 'video.mit.edu'
74 _VALID_URL = r'https?://video\.mit\.edu/watch/(?P<title>[^/]+)'
77 'url': 'http://video.mit.edu/watch/the-government-is-profiling-you-13222/',
78 'md5': '7db01d5ccc1895fc5010e9c9e13648da',
82 'title': 'The Government is Profiling You',
83 'description': 'md5:ad5795fe1e1623b73620dbfd47df9afd',
87 def _real_extract(self, url):
88 mobj = re.match(self._VALID_URL, url)
89 page_title = mobj.group('title')
90 webpage = self._download_webpage(url, page_title)
91 embed_url = self._search_regex(
92 r'<iframe .*?src="(.+?)"', webpage, 'embed url')
93 return self.url_result(embed_url, ie='TechTVMIT')
96 class OCWMITIE(InfoExtractor):
97 IE_NAME = 'ocw.mit.edu'
98 _VALID_URL = r'^http://ocw\.mit\.edu/courses/(?P<topic>[a-z0-9\-]+)'
99 _BASE_URL = 'http://ocw.mit.edu/'
103 '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/',
107 'title': 'Lecture 7: Multiple Discrete Random Variables: Expectations, Conditioning, Independence',
108 'description': 'In this lecture, the professor discussed multiple random variables, expectations, and binomial distribution.',
109 #'subtitles': '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/MIT6_041F11_lec07_300k.mp4.srt'
113 '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/',
117 'title': 'Session 1: Introduction to Derivatives',
118 'description': 'This section contains lecture video excerpts, lecture notes, an interactive mathlet with supporting documents, and problem solving videos.',
119 #'subtitles': 'http://ocw.mit.edu//courses/mathematics/18-01sc-single-variable-calculus-fall-2010/ocw-18.01-f07-lec01_300k.SRT'
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)
138 subs = compat_urlparse.urljoin(self._BASE_URL, metadata[7])
140 # search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, captions_file)
141 embed_media = re.search(r'ocw_embed_media\((.+?)\)', webpage)
143 metadata = re.sub(r'[\'"]', '', embed_media.group(1))
144 metadata = re.split(r', ?', metadata)
146 subs = compat_urlparse.urljoin(self._BASE_URL, metadata[5])
148 raise ExtractorError('Unable to find embedded YouTube video.')
149 video_id = YoutubeIE.extract_id(yt)
152 '_type': 'url_transparent',
155 'description': description,