mirror of
https://github.com/l1ving/youtube-dl
synced 2024-12-31 01:35:44 +08:00
[howstuffworks] Rewrite extractor
This commit is contained in:
Tithen-Firion
parent
ebb6419960
commit
d958fa9ff9
@ -1,134 +1,75 @@
|
||||
from __future__ import unicode_literals
|
||||
|
||||
import re
|
||||
import json
|
||||
import random
|
||||
import string
|
||||
|
||||
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',
|
||||
'url': 'http://adventure.howstuffworks.com/39521-deadliest-catch-nautical-collision-video.htm',
|
||||
'info_dict': {
|
||||
'id': '450221',
|
||||
'display_id': 'cool-jobs-iditarod-musher',
|
||||
'ext': 'flv',
|
||||
'title': 'Cool Jobs - Iditarod Musher',
|
||||
'description': 'md5:82bb58438a88027b8186a1fccb365f90',
|
||||
'thumbnail': 're:^https?://.*\.jpg$',
|
||||
'id': '553475',
|
||||
'ext': 'mp4',
|
||||
'title': 'Deadliest Catch: Nautical Collision',
|
||||
'description': 'Check out this clip to get an exclusive look at the Deadliest Catch crew back in action.',
|
||||
'thumbnail': 'http://s.hswstatic.com/gif/videos/480x360/39521.jpg',
|
||||
},
|
||||
'params': {
|
||||
# md5 is not consistent
|
||||
'skip_download': True
|
||||
}
|
||||
},
|
||||
{
|
||||
'url': 'http://adventure.howstuffworks.com/7199-survival-zone-food-and-water-in-the-savanna-video.htm',
|
||||
'info_dict': {
|
||||
'id': '453464',
|
||||
'display_id': 'survival-zone-food-and-water-in-the-savanna',
|
||||
'ext': 'mp4',
|
||||
'title': 'Survival Zone: Food and Water In the Savanna',
|
||||
'description': 'md5:7e1c89f6411434970c15fa094170c371',
|
||||
'thumbnail': 're:^https?://.*\.jpg$',
|
||||
'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',
|
||||
},
|
||||
'params': {
|
||||
# md5 is not consistent
|
||||
'skip_download': True
|
||||
}
|
||||
},
|
||||
{
|
||||
'url': 'http://entertainment.howstuffworks.com/arts/2706-sword-swallowing-1-by-dan-meyer-video.htm',
|
||||
'url': 'http://entertainment.howstuffworks.com/arts/34476-time-warp-fire-breathing-disaster-video.htm',
|
||||
'info_dict': {
|
||||
'id': '440011',
|
||||
'display_id': 'sword-swallowing-1-by-dan-meyer',
|
||||
'ext': 'flv',
|
||||
'title': 'Sword Swallowing #1 by Dan Meyer',
|
||||
'description': 'md5:b2409e88172913e2e7d3d1159b0ef735',
|
||||
'thumbnail': 're:^https?://.*\.jpg$',
|
||||
'id': '487036',
|
||||
'ext': 'mp4',
|
||||
'title': 'Time Warp: Fire-Breathing Disaster',
|
||||
'description': 'Fire-breathers are safe from flames when they angle their heads up as they blow -- see what would happen if they looked down instead. Check out this clip from Discovery\'s "Time Warp" series to learn more.',
|
||||
'thumbnail': 'http://s.hswstatic.com/gif/videos/480x360/34476.jpg',
|
||||
},
|
||||
'params': {
|
||||
# md5 is not consistent
|
||||
'skip_download': True
|
||||
}
|
||||
},
|
||||
]
|
||||
|
||||
def _extract_clip_info(self, 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)
|
||||
|
||||
def _real_extract(self, url):
|
||||
mobj = re.match(self._VALID_URL, url)
|
||||
display_id = mobj.group('id')
|
||||
display_id = self._match_id(url)
|
||||
webpage = self._download_webpage(url, display_id)
|
||||
|
||||
content_id = self._search_regex(r'var siteSectionId="(\d+)";', webpage, 'content id')
|
||||
|
||||
mp4 = self._search_regex(
|
||||
r'''(?xs)var\s+clip\s*=\s*{\s*
|
||||
.+?\s*
|
||||
content_id\s*:\s*%s\s*,\s*
|
||||
.+?\s*
|
||||
mp4\s*:\s*\[(.*?),?\]\s*
|
||||
};\s*
|
||||
videoData\.push\(clip\);''' % content_id,
|
||||
webpage, 'mp4', fatal=False, default=None)
|
||||
|
||||
smil = self._download_xml(
|
||||
'http://services.media.howstuffworks.com/videos/%s/smil-service.smil' % content_id,
|
||||
content_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')
|
||||
|
||||
def random_string(str_len=0):
|
||||
return ''.join([random.choice(string.ascii_uppercase) for _ in range(str_len)])
|
||||
|
||||
URL_SUFFIX = '?v=2.11.3&fp=LNX 11,2,202,356&r=%s&g=%s' % (random_string(5), random_string(12))
|
||||
|
||||
clip_info = self._search_regex('(?s)var clip = {(.*?)};', webpage, 'clip info')
|
||||
video_id = self._extract_clip_info('content_id', clip_info, 'video id')
|
||||
formats = []
|
||||
|
||||
if mp4:
|
||||
for video in json.loads('[%s]' % mp4):
|
||||
bitrate = video['bitrate']
|
||||
fmt = {
|
||||
'url': video['src'].replace('http://pmd.video.howstuffworks.com', http_base) + URL_SUFFIX,
|
||||
'format_id': bitrate,
|
||||
}
|
||||
m = re.search(r'(?P<vbr>\d+)[Kk]', bitrate)
|
||||
if m:
|
||||
fmt['vbr'] = int(m.group('vbr'))
|
||||
formats.append(fmt)
|
||||
else:
|
||||
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
|
||||
m3u8_url = self._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(
|
||||
self._extract_clip_info(
|
||||
'mp4', clip_info, 'formats').replace('},]','}]'), video_id)
|
||||
for video in mp4:
|
||||
formats.append({
|
||||
'url': '%s/%s%s' % (http_base, video.attrib['src'], URL_SUFFIX),
|
||||
'format_id': '%dk' % vbr,
|
||||
'vbr': vbr,
|
||||
'url': video['src'],
|
||||
'format_id': video['bitrate'],
|
||||
'tbr': int(video['bitrate'].rstrip('k')),
|
||||
})
|
||||
|
||||
self._sort_formats(formats)
|
||||
|
||||
title = self._og_search_title(webpage)
|
||||
TITLE_SUFFIX = ' : HowStuffWorks'
|
||||
if title.endswith(TITLE_SUFFIX):
|
||||
title = title[:-len(TITLE_SUFFIX)]
|
||||
|
||||
description = self._og_search_description(webpage)
|
||||
thumbnail = self._og_search_thumbnail(webpage)
|
||||
|
||||
return {
|
||||
'id': content_id,
|
||||
'id': video_id,
|
||||
'display_id': display_id,
|
||||
'title': title,
|
||||
'description': description,
|
||||
'thumbnail': thumbnail,
|
||||
'title': self._extract_clip_info('clip_title', clip_info, 'title'),
|
||||
'description': self._extract_clip_info('caption', clip_info, 'description', fatal=False),
|
||||
'thumbnail': self._extract_clip_info('video_still_url', clip_info, 'thumbnail'),
|
||||
'duration': self._extract_clip_info('duration', clip_info),
|
||||
'formats': formats,
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user