from __future__ import unicode_literals from .common import InfoExtractor from ..utils import ( find_xpath_attr, int_or_none, js_to_json, unescapeHTML, ) class HowStuffWorksIE(InfoExtractor): _VALID_URL = r'https?://[\da-z-]+\.howstuffworks\.com/(?:[^/]+/)*(\d+-)*(?P.+?)-video\.htm' _TESTS = [ { 'url': 'http://adventure.howstuffworks.com/5266-cool-jobs-iditarod-musher-video.htm', 'info_dict': { 'id': '450221', 'ext': 'flv', 'title': 'Cool Jobs - Iditarod Musher', 'description': 'Cold sleds, freezing temps and warm dog breath... an Iditarod musher\'s dream. Kasey-Dee Gardner jumps on a sled to find out what the big deal is.', 'display_id': 'cool-jobs-iditarod-musher', 'thumbnail': 're:^https?://.*\.jpg$', 'duration': 161, }, }, { 'url': 'http://adventure.howstuffworks.com/7199-survival-zone-food-and-water-in-the-savanna-video.htm', 'info_dict': { 'id': '453464', 'ext': 'mp4', 'title': 'Survival Zone: Food and Water In the Savanna', 'description': 'Learn how to find both food and water while trekking in the African savannah. In this video from the Discovery Channel.', 'display_id': 'survival-zone-food-and-water-in-the-savanna', 'thumbnail': 're:^https?://.*\.jpg$', }, }, { 'url': 'http://entertainment.howstuffworks.com/arts/2706-sword-swallowing-1-by-dan-meyer-video.htm', 'info_dict': { 'id': '440011', 'ext': 'flv', 'title': 'Sword Swallowing #1 by Dan Meyer', 'description': 'Video footage (1 of 3) used by permission of the owner Dan Meyer through Sword Swallowers Association International ', 'display_id': 'sword-swallowing-1-by-dan-meyer', 'thumbnail': 're:^https?://.*\.jpg$', }, }, { 'url': 'http://shows.howstuffworks.com/stuff-to-blow-your-mind/optical-illusions-video.htm', 'info_dict': { 'id': '855410', 'ext': 'mp4', 'title': 'Stuff to Blow Your Mind', 'description': 'When it comes to optical illusions it’s pretty easy to jailbreak the operating system of your mind and load a new program onto it. Find out why your visual system willingly makes errors in interpretation.', 'display_id': 'optical-illusions', 'thumbnail': 're:^https?://.*\.jpg$', }, } ] 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: formats += self._extract_m3u8_formats(m3u8_url, video_id, 'mp4') for video in clip_info.get('mp4', []): formats.append({ 'url': video['src'], 'format_id': video['bitrate'], 'vbr': int(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': clip_info.get('duration'), 'formats': formats, }