from __future__ import unicode_literals from .common import InfoExtractor from ..utils import ( find_xpath_attr, int_or_none, js_to_json, unescapeHTML, determine_ext, ) class HowStuffWorksIE(InfoExtractor): _VALID_URL = r'https?://[\da-z-]+\.(?:howstuffworks|stuff(?:(?:youshould|theydontwantyouto)know|toblowyourmind|momnevertoldyou)|(?:brain|car)stuffshow|fwthinking|geniusstuff)\.com/(?:[^/]+/)*(?:\d+-)?(?P<id>.+?)-video\.htm' _TESTS = [ { 'url': 'http://www.stufftoblowyourmind.com/videos/optical-illusions-video.htm', 'md5': '76646a5acc0c92bf7cd66751ca5db94d', 'info_dict': { 'id': '855410', 'ext': 'mp4', 'title': 'Your Trickster Brain: Optical Illusions -- Science on the Web', 'description': 'md5:e374ff9561f6833ad076a8cc0a5ab2fb', }, }, { 'url': 'http://shows.howstuffworks.com/more-shows/why-does-balloon-stick-to-hair-video.htm', 'only_matching': True, } ] def _real_extract(self, url): display_id = self._match_id(url) webpage = self._download_webpage(url, display_id) clip_js = self._search_regex( r'(?s)var clip = ({.*?});', webpage, 'clip info') clip_info = self._parse_json( clip_js, display_id, transform_source=js_to_json) video_id = clip_info['content_id'] formats = [] m3u8_url = clip_info.get('m3u8') if m3u8_url and determine_ext(m3u8_url) == 'm3u8': formats.extend(self._extract_m3u8_formats(m3u8_url, video_id, 'mp4', format_id='hls', fatal=True)) flv_url = clip_info.get('flv_url') if flv_url: formats.append({ 'url': flv_url, 'format_id': 'flv', }) for video in clip_info.get('mp4', []): formats.append({ 'url': video['src'], 'format_id': 'mp4-%s' % video['bitrate'], 'vbr': int_or_none(video['bitrate'].rstrip('k')), }) if not formats: smil = self._download_xml( 'http://services.media.howstuffworks.com/videos/%s/smil-service.smil' % video_id, video_id, 'Downloading video SMIL') http_base = find_xpath_attr( smil, './{0}head/{0}meta'.format('{http://www.w3.org/2001/SMIL20/Language}'), 'name', 'httpBase').get('content') URL_SUFFIX = '?v=2.11.3&fp=LNX 11,2,202,356&r=A&g=A' for video in smil.findall( './{0}body/{0}switch/{0}video'.format('{http://www.w3.org/2001/SMIL20/Language}')): vbr = int_or_none(video.attrib['system-bitrate'], scale=1000) formats.append({ 'url': '%s/%s%s' % (http_base, video.attrib['src'], URL_SUFFIX), 'format_id': '%dk' % vbr, 'vbr': vbr, }) self._sort_formats(formats) return { 'id': '%s' % video_id, 'display_id': display_id, 'title': unescapeHTML(clip_info['clip_title']), 'description': unescapeHTML(clip_info.get('caption')), 'thumbnail': clip_info.get('video_still_url'), 'duration': int_or_none(clip_info.get('duration')), 'formats': formats, }