]> Raphaƫl G. Git Repositories - youtubedl/blob - youtube_dl/extractor/howstuffworks.py
Prepare new release.
[youtubedl] / youtube_dl / extractor / howstuffworks.py
1 from __future__ import unicode_literals
2
3 from .common import InfoExtractor
4 from ..utils import (
5 find_xpath_attr,
6 int_or_none,
7 js_to_json,
8 unescapeHTML,
9 determine_ext,
10 )
11
12
13 class HowStuffWorksIE(InfoExtractor):
14 _VALID_URL = r'https?://[\da-z-]+\.howstuffworks\.com/(?:[^/]+/)*(?:\d+-)?(?P<id>.+?)-video\.htm'
15 _TESTS = [
16 {
17 'url': 'http://adventure.howstuffworks.com/5266-cool-jobs-iditarod-musher-video.htm',
18 'info_dict': {
19 'id': '450221',
20 'ext': 'flv',
21 'title': 'Cool Jobs - Iditarod Musher',
22 '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.',
23 'display_id': 'cool-jobs-iditarod-musher',
24 'thumbnail': r're:^https?://.*\.jpg$',
25 'duration': 161,
26 },
27 'skip': 'Video broken',
28 },
29 {
30 'url': 'http://adventure.howstuffworks.com/7199-survival-zone-food-and-water-in-the-savanna-video.htm',
31 'info_dict': {
32 'id': '453464',
33 'ext': 'mp4',
34 'title': 'Survival Zone: Food and Water In the Savanna',
35 'description': 'Learn how to find both food and water while trekking in the African savannah. In this video from the Discovery Channel.',
36 'display_id': 'survival-zone-food-and-water-in-the-savanna',
37 'thumbnail': r're:^https?://.*\.jpg$',
38 },
39 },
40 {
41 'url': 'http://entertainment.howstuffworks.com/arts/2706-sword-swallowing-1-by-dan-meyer-video.htm',
42 'info_dict': {
43 'id': '440011',
44 'ext': 'mp4',
45 'title': 'Sword Swallowing #1 by Dan Meyer',
46 'description': 'Video footage (1 of 3) used by permission of the owner Dan Meyer through Sword Swallowers Association International <www.swordswallow.org>',
47 'display_id': 'sword-swallowing-1-by-dan-meyer',
48 'thumbnail': r're:^https?://.*\.jpg$',
49 },
50 },
51 {
52 'url': 'http://shows.howstuffworks.com/stuff-to-blow-your-mind/optical-illusions-video.htm',
53 'only_matching': True,
54 }
55 ]
56
57 def _real_extract(self, url):
58 display_id = self._match_id(url)
59 webpage = self._download_webpage(url, display_id)
60 clip_js = self._search_regex(
61 r'(?s)var clip = ({.*?});', webpage, 'clip info')
62 clip_info = self._parse_json(
63 clip_js, display_id, transform_source=js_to_json)
64
65 video_id = clip_info['content_id']
66 formats = []
67 m3u8_url = clip_info.get('m3u8')
68 if m3u8_url and determine_ext(m3u8_url) == 'm3u8':
69 formats.extend(self._extract_m3u8_formats(m3u8_url, video_id, 'mp4', format_id='hls', fatal=True))
70 flv_url = clip_info.get('flv_url')
71 if flv_url:
72 formats.append({
73 'url': flv_url,
74 'format_id': 'flv',
75 })
76 for video in clip_info.get('mp4', []):
77 formats.append({
78 'url': video['src'],
79 'format_id': 'mp4-%s' % video['bitrate'],
80 'vbr': int_or_none(video['bitrate'].rstrip('k')),
81 })
82
83 if not formats:
84 smil = self._download_xml(
85 'http://services.media.howstuffworks.com/videos/%s/smil-service.smil' % video_id,
86 video_id, 'Downloading video SMIL')
87
88 http_base = find_xpath_attr(
89 smil,
90 './{0}head/{0}meta'.format('{http://www.w3.org/2001/SMIL20/Language}'),
91 'name',
92 'httpBase').get('content')
93
94 URL_SUFFIX = '?v=2.11.3&fp=LNX 11,2,202,356&r=A&g=A'
95
96 for video in smil.findall(
97 './{0}body/{0}switch/{0}video'.format('{http://www.w3.org/2001/SMIL20/Language}')):
98 vbr = int_or_none(video.attrib['system-bitrate'], scale=1000)
99 formats.append({
100 'url': '%s/%s%s' % (http_base, video.attrib['src'], URL_SUFFIX),
101 'format_id': '%dk' % vbr,
102 'vbr': vbr,
103 })
104
105 self._sort_formats(formats)
106
107 return {
108 'id': '%s' % video_id,
109 'display_id': display_id,
110 'title': unescapeHTML(clip_info['clip_title']),
111 'description': unescapeHTML(clip_info.get('caption')),
112 'thumbnail': clip_info.get('video_still_url'),
113 'duration': int_or_none(clip_info.get('duration')),
114 'formats': formats,
115 }