from __future__ import unicode_literals from .common import InfoExtractor from ..utils import find_xpath_attr 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.', 'thumbnail': 'http://s.hswstatic.com/gif/videos/480x360/5266.jpg', }, }, { '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.', 'thumbnail': 'http://s.hswstatic.com/gif/videos/480x360/7199.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 ', 'thumbnail': 'http://s.hswstatic.com/gif/videos/480x360/118306353233.jpg', }, }, ] def _real_extract(self, url): display_id = self._match_id(url) webpage = self._download_webpage(url, display_id) clip_info = self._search_regex('(?s)var clip = {(.*?)};', webpage, 'clip info') def extract_clip_info(key, clip_info, name=None, **kargs): if name is None: name = key return self._html_search_regex( r"\s*%s\s*: '?([^'\n]*[^'\n,])" % key, clip_info, name, **kargs) video_id = extract_clip_info('content_id', clip_info, 'video id') formats = [] m3u8_url = extract_clip_info('m3u8', clip_info, 'm3u8 url', default=None) if m3u8_url is not None: formats += self._extract_m3u8_formats(m3u8_url , video_id, 'mp4') mp4 = self._parse_json( extract_clip_info( 'mp4', clip_info, 'formats').replace('},]','}]'), video_id) for video in 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(video.attrib['system-bitrate']) / 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': video_id, 'display_id': display_id, 'title': extract_clip_info('clip_title', clip_info, 'title'), 'description': extract_clip_info('caption', clip_info, 'description', fatal=False), 'thumbnail': extract_clip_info('video_still_url', clip_info, 'thumbnail'), 'duration': extract_clip_info('duration', clip_info), 'formats': formats, }