You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
5.9 KiB
156 lines
5.9 KiB
from __future__ import unicode_literals |
|
|
|
import re |
|
import json |
|
|
|
from .common import InfoExtractor |
|
from .youtube import YoutubeIE |
|
from ..utils import ( |
|
clean_html, |
|
ExtractorError, |
|
get_element_by_id, |
|
) |
|
|
|
|
|
class TechTVMITIE(InfoExtractor): |
|
IE_NAME = 'techtv.mit.edu' |
|
_VALID_URL = r'https?://techtv\.mit\.edu/(?:videos|embeds)/(?P<id>\d+)' |
|
|
|
_TEST = { |
|
'url': 'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set', |
|
'md5': '00a3a27ee20d44bcaa0933ccec4a2cf7', |
|
'info_dict': { |
|
'id': '25418', |
|
'ext': 'mp4', |
|
'title': 'MIT DNA and Protein Sets', |
|
'description': 'md5:46f5c69ce434f0a97e7c628cc142802d', |
|
}, |
|
} |
|
|
|
def _real_extract(self, url): |
|
video_id = self._match_id(url) |
|
raw_page = self._download_webpage( |
|
'http://techtv.mit.edu/videos/%s' % video_id, video_id) |
|
clean_page = re.compile(r'<!--.*?-->', re.S).sub('', raw_page) |
|
|
|
base_url = self._proto_relative_url(self._search_regex( |
|
r'ipadUrl: \'(.+?cloudfront.net/)', raw_page, 'base url'), 'http:') |
|
formats_json = self._search_regex( |
|
r'bitrates: (\[.+?\])', raw_page, 'video formats') |
|
formats_mit = json.loads(formats_json) |
|
formats = [ |
|
{ |
|
'format_id': f['label'], |
|
'url': base_url + f['url'].partition(':')[2], |
|
'ext': f['url'].partition(':')[0], |
|
'format': f['label'], |
|
'width': f['width'], |
|
'vbr': f['bitrate'], |
|
} |
|
for f in formats_mit |
|
] |
|
|
|
title = get_element_by_id('edit-title', clean_page) |
|
description = clean_html(get_element_by_id('edit-description', clean_page)) |
|
thumbnail = self._search_regex( |
|
r'playlist:.*?url: \'(.+?)\'', |
|
raw_page, 'thumbnail', flags=re.DOTALL) |
|
|
|
return { |
|
'id': video_id, |
|
'title': title, |
|
'formats': formats, |
|
'description': description, |
|
'thumbnail': thumbnail, |
|
} |
|
|
|
|
|
class MITIE(TechTVMITIE): |
|
IE_NAME = 'video.mit.edu' |
|
_VALID_URL = r'https?://video\.mit\.edu/watch/(?P<title>[^/]+)' |
|
|
|
_TEST = { |
|
'url': 'http://video.mit.edu/watch/the-government-is-profiling-you-13222/', |
|
'md5': '7db01d5ccc1895fc5010e9c9e13648da', |
|
'info_dict': { |
|
'id': '21783', |
|
'ext': 'mp4', |
|
'title': 'The Government is Profiling You', |
|
'description': 'md5:ad5795fe1e1623b73620dbfd47df9afd', |
|
}, |
|
} |
|
|
|
def _real_extract(self, url): |
|
mobj = re.match(self._VALID_URL, url) |
|
page_title = mobj.group('title') |
|
webpage = self._download_webpage(url, page_title) |
|
embed_url = self._search_regex( |
|
r'<iframe .*?src="(.+?)"', webpage, 'embed url') |
|
return self.url_result(embed_url) |
|
|
|
|
|
class OCWMITIE(InfoExtractor): |
|
IE_NAME = 'ocw.mit.edu' |
|
_VALID_URL = r'^https?://ocw\.mit\.edu/courses/(?P<topic>[a-z0-9\-]+)' |
|
_BASE_URL = 'http://ocw.mit.edu/' |
|
|
|
_TESTS = [ |
|
{ |
|
'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/', |
|
'info_dict': { |
|
'id': 'EObHWIEKGjA', |
|
'ext': 'webm', |
|
'title': 'Lecture 7: Multiple Discrete Random Variables: Expectations, Conditioning, Independence', |
|
'description': 'In this lecture, the professor discussed multiple random variables, expectations, and binomial distribution.', |
|
'upload_date': '20121109', |
|
'uploader_id': 'MIT', |
|
'uploader': 'MIT OpenCourseWare', |
|
} |
|
}, |
|
{ |
|
'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/', |
|
'info_dict': { |
|
'id': '7K1sB05pE0A', |
|
'ext': 'mp4', |
|
'title': 'Session 1: Introduction to Derivatives', |
|
'upload_date': '20090818', |
|
'uploader_id': 'MIT', |
|
'uploader': 'MIT OpenCourseWare', |
|
'description': 'This section contains lecture video excerpts, lecture notes, an interactive mathlet with supporting documents, and problem solving videos.', |
|
} |
|
} |
|
] |
|
|
|
def _real_extract(self, url): |
|
mobj = re.match(self._VALID_URL, url) |
|
topic = mobj.group('topic') |
|
|
|
webpage = self._download_webpage(url, topic) |
|
title = self._html_search_meta('WT.cg_s', webpage) |
|
description = self._html_search_meta('Description', webpage) |
|
|
|
# search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, start, stop, captions_file) |
|
embed_chapter_media = re.search(r'ocw_embed_chapter_media\((.+?)\)', webpage) |
|
if embed_chapter_media: |
|
metadata = re.sub(r'[\'"]', '', embed_chapter_media.group(1)) |
|
metadata = re.split(r', ?', metadata) |
|
yt = metadata[1] |
|
else: |
|
# search for call to ocw_embed_chapter_media(container_id, media_url, provider, page_url, image_url, captions_file) |
|
embed_media = re.search(r'ocw_embed_media\((.+?)\)', webpage) |
|
if embed_media: |
|
metadata = re.sub(r'[\'"]', '', embed_media.group(1)) |
|
metadata = re.split(r', ?', metadata) |
|
yt = metadata[1] |
|
else: |
|
raise ExtractorError('Unable to find embedded YouTube video.') |
|
video_id = YoutubeIE.extract_id(yt) |
|
|
|
return { |
|
'_type': 'url_transparent', |
|
'id': video_id, |
|
'title': title, |
|
'description': description, |
|
'url': yt, |
|
'ie_key': 'Youtube', |
|
}
|
|
|