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