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from __future__ import unicode_literals |
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import re |
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from .common import InfoExtractor |
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from ..utils import ( |
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find_xpath_attr, |
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int_or_none, |
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parse_duration, |
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unified_strdate, |
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) |
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class VideoLecturesNetIE(InfoExtractor): |
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_VALID_URL = r'http://(?:www\.)?videolectures\.net/(?P<id>[^/#?]+)/' |
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IE_NAME = 'videolectures.net' |
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_TEST = { |
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'url': 'http://videolectures.net/promogram_igor_mekjavic_eng/', |
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'info_dict': { |
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'id': 'promogram_igor_mekjavic_eng', |
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'ext': 'mp4', |
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'title': 'Automatics, robotics and biocybernetics', |
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'description': 'md5:815fc1deb6b3a2bff99de2d5325be482', |
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'upload_date': '20130627', |
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'duration': 565, |
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'thumbnail': 're:http://.*\.jpg', |
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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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smil_url = 'http://videolectures.net/%s/video/1/smil.xml' % video_id |
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smil = self._download_xml(smil_url, video_id) |
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title = find_xpath_attr(smil, './/meta', 'name', 'title').attrib['content'] |
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description = find_xpath_attr(smil, './/meta', 'name', 'abstract').attrib['content'] |
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upload_date = unified_strdate( |
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find_xpath_attr(smil, './/meta', 'name', 'date').attrib['content']) |
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switch = smil.find('.//switch') |
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duration = parse_duration(switch.attrib.get('dur')) |
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thumbnail_el = find_xpath_attr(switch, './image', 'type', 'thumbnail') |
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thumbnail = ( |
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None if thumbnail_el is None else thumbnail_el.attrib.get('src')) |
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formats = [{ |
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'url': v.attrib['src'], |
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'width': int_or_none(v.attrib.get('width')), |
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'height': int_or_none(v.attrib.get('height')), |
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'filesize': int_or_none(v.attrib.get('size')), |
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'tbr': int_or_none(v.attrib.get('systemBitrate')) / 1000.0, |
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'ext': v.attrib.get('ext'), |
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} for v in switch.findall('./video') |
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if v.attrib.get('proto') == 'http'] |
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return { |
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'id': video_id, |
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'title': title, |
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'description': description, |
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'upload_date': upload_date, |
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'duration': duration, |
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'thumbnail': thumbnail, |
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'formats': formats, |
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} |
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