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youtube-dl/youtube_dl/extractor/mit.py

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import re
import json
from .common import InfoExtractor
from ..utils import (
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compat_str,
clean_html,
get_element_by_id,
)
class TechTVMITIE(InfoExtractor):
IE_NAME = u'techtv.mit.edu'
_VALID_URL = r'https?://techtv\.mit\.edu/(videos|embeds)/(?P<id>\d+)'
_TEST = {
u'url': u'http://techtv.mit.edu/videos/25418-mit-dna-learning-center-set',
u'file': u'25418.mp4',
u'md5': u'1f8cb3e170d41fd74add04d3c9330e5f',
u'info_dict': {
u'title': u'MIT DNA Learning Center Set',
u'description': u'md5:82313335e8a8a3f243351ba55bc1b474',
},
}
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
video_id = mobj.group('id')
raw_page = self._download_webpage(
'http://techtv.mit.edu/videos/%s' % video_id, video_id)
clean_page = re.compile(u'<!--.*?-->', re.S).sub(u'', raw_page)
base_url = self._search_regex(r'ipadUrl: \'(.+?cloudfront.net/)',
raw_page, u'base url')
formats_json = self._search_regex(r'bitrates: (\[.+?\])', raw_page,
u'video formats')
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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, u'thumbnail', flags=re.DOTALL)
return {'id': video_id,
'title': title,
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'formats': formats,
'description': description,
'thumbnail': thumbnail,
}
class MITIE(TechTVMITIE):
IE_NAME = u'video.mit.edu'
_VALID_URL = r'https?://video\.mit\.edu/watch/(?P<title>[^/]+)'
_TEST = {
u'url': u'http://video.mit.edu/watch/the-government-is-profiling-you-13222/',
u'file': u'21783.mp4',
u'md5': u'7db01d5ccc1895fc5010e9c9e13648da',
u'info_dict': {
u'title': u'The Government is Profiling You',
u'description': u'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)
self.to_screen('%s: Extracting %s url' % (page_title, TechTVMITIE.IE_NAME))
embed_url = self._search_regex(r'<iframe .*?src="(.+?)"', webpage,
u'embed url')
return self.url_result(embed_url, ie='TechTVMIT')