144 lines
5.8 KiB
Python
144 lines
5.8 KiB
Python
from __future__ import unicode_literals
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import re
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import json
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from .common import InfoExtractor
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from ..utils import (
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compat_urlparse,
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clean_html,
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get_element_by_id,
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)
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class TechTVMITIE(InfoExtractor):
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IE_NAME = 'techtv.mit.edu'
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_VALID_URL = r'https?://techtv\.mit\.edu/(videos|embeds)/(?P<id>\d+)'
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_TEST = {
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'url': 'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set',
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'md5': '1f8cb3e170d41fd74add04d3c9330e5f',
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'info_dict': {
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'id': '25418',
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'ext': 'mp4',
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'title': 'MIT DNA Learning Center Set',
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'description': 'md5:82313335e8a8a3f243351ba55bc1b474',
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},
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}
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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video_id = mobj.group('id')
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raw_page = self._download_webpage(
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'http://techtv.mit.edu/videos/%s' % video_id, video_id)
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clean_page = re.compile(r'<!--.*?-->', re.S).sub('', raw_page)
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base_url = self._search_regex(
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r'ipadUrl: \'(.+?cloudfront.net/)', raw_page, 'base url')
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formats_json = self._search_regex(
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r'bitrates: (\[.+?\])', raw_page, 'video formats')
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formats_mit = json.loads(formats_json)
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formats = [
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{
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'format_id': f['label'],
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'url': base_url + f['url'].partition(':')[2],
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'ext': f['url'].partition(':')[0],
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'format': f['label'],
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'width': f['width'],
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'vbr': f['bitrate'],
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}
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for f in formats_mit
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]
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title = get_element_by_id('edit-title', clean_page)
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description = clean_html(get_element_by_id('edit-description', clean_page))
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thumbnail = self._search_regex(
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r'playlist:.*?url: \'(.+?)\'',
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raw_page, 'thumbnail', flags=re.DOTALL)
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return {
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'id': video_id,
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'title': title,
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'formats': formats,
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'description': description,
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'thumbnail': thumbnail,
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}
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class MITIE(TechTVMITIE):
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IE_NAME = 'video.mit.edu'
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_VALID_URL = r'https?://video\.mit\.edu/watch/(?P<title>[^/]+)'
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_TEST = {
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'url': 'http://video.mit.edu/watch/the-government-is-profiling-you-13222/',
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'file': '.mp4',
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'md5': '7db01d5ccc1895fc5010e9c9e13648da',
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'info_dict': {
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'id': '21783',
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'ext': 'mp4',
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'title': 'The Government is Profiling You',
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'description': 'md5:ad5795fe1e1623b73620dbfd47df9afd',
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},
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}
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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page_title = mobj.group('title')
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webpage = self._download_webpage(url, page_title)
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embed_url = self._search_regex(
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r'<iframe .*?src="(.+?)"', webpage, 'embed url')
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return self.url_result(embed_url, ie='TechTVMIT')
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class OCWMITIE(InfoExtractor):
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IE_NAME = u'ocw.mit.edu'
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_VALID_URL = r'^http://ocw\.mit\.edu/courses/(?P<topic>[a-z0-9\-]+)'
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_BASE_URL = u'http://ocw.mit.edu/'
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_TESTS = [
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{
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u'url': u'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/',
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u'md5': u'348bef727b573c0bd9ad8a7c08c89ebd',
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u'info_dict': {
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u'title': u'7. Discrete Random Variables III',
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u'description': u'In this lecture, the professor discussed multiple random variables, expectations, and binomial distribution.',
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u'subtitles': u'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'
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}
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},
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{
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u'url': u'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/',
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u'md5': u'f4a434f08f15e581eb67cec0b57bcf6f',
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u'info_dict': {
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u'title': u'Lec 1 _ MIT 18.01 Single Variable Calculus, Fall 2007',
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u'subtitles': u'http://ocw.mit.edu//courses/mathematics/18-01sc-single-variable-calculus-fall-2010/ocw-18.01-f07-lec01_300k.SRT'
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}
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}
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]
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def _real_extract(self, url):
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webpage = self._download_webpage(url, self.IE_NAME)
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title = self._html_search_meta(u'WT.cg_s', webpage)
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description = self._html_search_meta(u'Description', webpage)
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# search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, start, stop, captions_file)
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embed_chapter_media = re.search(r'ocw_embed_chapter_media\((.+?)\)', webpage)
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if embed_chapter_media:
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metadata = re.sub(r'[\'"]', u'', embed_chapter_media.group(1))
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metadata = re.split(r', ?', metadata)
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yt = metadata[1]
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subs = compat_urlparse.urljoin(self._BASE_URL, metadata[7])
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else:
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# search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, captions_file)
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embed_media = re.search(r'ocw_embed_media\((.+?)\)', webpage)
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if embed_media:
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metadata = re.sub(r'[\'"]', u'', embed_media.group(1))
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metadata = re.split(r', ?', metadata)
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yt = metadata[1]
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subs = compat_urlparse.urljoin(self._BASE_URL, metadata[5])
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else:
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raise ExtractorError('Unable to find embedded YouTube video.')
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data = self.url_result(yt, 'Youtube')
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data['subtitles'] = subs
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return data
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