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- 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<id>.+?)-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 <www.swordswallow.org>',
- '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,
- }
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