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[loc] Improve (Closes #9521)

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Sergey M․ 2016-06-03 23:19:11 +07:00
parent 9c3c447eb3
commit 7f3c3dfa52
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1 changed files with 53 additions and 34 deletions
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87
youtube_dl/extractor/libraryofcongress.py
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@ -3,63 +3,82 @@ from __future__ import unicode_literals
from .common import InfoExtractor
from ..utils import determine_ext
from ..utils import (
determine_ext,
float_or_none,
int_or_none,
)
class LibraryOfCongressIE(InfoExtractor):
IE_NAME = 'loc'
IE_DESC = 'Library of Congress'
_VALID_URL = r'https?://(?:www\.)?loc\.gov/item/(?P<id>[0-9]+)'
_TESTS = [{
'url': 'http://loc.gov/item/90716351/',
_TEST = {
'url': 'http://loc.gov/item/90716351/',
'md5': '353917ff7f0255aa6d4b80a034833de8',
'info_dict': {
'id': '90716351',
'ext': 'mp4',
'title': 'Pa\'s trip to Mars /'
'title': "Pa's trip to Mars",
'thumbnail': 're:^https?://.*\.jpg$',
'duration': 0,
'view_count': int,
},
'params': {
# m3u8 download
'skip_download': True,
}
}, {
'url': 'https://www.loc.gov/item/97516576/',
'only_matching': True,
}]
}
def _real_extract(self, url):
video_id = self._match_id(url)
webpage = self._download_webpage(url, video_id)
self.report_extraction(video_id)
json_id = self._search_regex('media-player-([0-9A-Z]{32})', webpage, 'json id')
media_id = self._search_regex(
(r'id=(["\'])media-player-(?P<id>.+?)\1',
r'<video[^>]+id=(["\'])uuid-(?P<id>.+?)\1',
r'<video[^>]+data-uuid=(["\'])(?P<id>.+?)\1'),
webpage, 'media id', group='id')
data = self._parse_json(self._download_webpage(
'https://media.loc.gov/services/v1/media?id=%s' % json_id,
video_id), video_id)
data = data['mediaObject']
data = self._parse_json(
self._download_webpage(
'https://media.loc.gov/services/v1/media?id=%s&context=json' % media_id,
video_id),
video_id)['mediaObject']
media_url = data['derivatives'][0]['derivativeUrl']
derivative = data['derivatives'][0]
media_url = derivative['derivativeUrl']
# Following algorithm was extracted from setAVSource js function
# found in webpage
media_url = media_url.replace('rtmp', 'https')
is_video = data['mediaType'].lower() == 'v'
if not determine_ext(media_url) in ('mp4', 'mp3'):
is_video = data.get('mediaType', 'v').lower() == 'v'
ext = determine_ext(media_url)
if ext not in ('mp4', 'mp3'):
media_url += '.mp4' if is_video else '.mp3'
if media_url.index('vod/mp4:') > -1:
media_url = media_url.replace('vod/mp4:', 'hls-vod/media/') + '.m3u8'
elif url.index('vod/mp3:') > -1:
media_url = media_url.replace('vod/mp3:', '')
if 'vod/mp4:' in media_url:
formats = [{
'url': media_url.replace('vod/mp4:', 'hls-vod/media/') + '.m3u8',
'format_id': 'hls',
'ext': 'mp4',
'protocol': 'm3u8_native',
}]
elif 'vod/mp3:' in media_url:
formats = [{
'url': media_url.replace('vod/mp3:', ''),
'vcodec': 'none',
}]
formats = []
if determine_ext(media_url) == 'm3u8':
formats = self._extract_m3u8_formats(media_url, video_id, ext='mp4')
elif determine_ext(media_url) is 'mp3':
formats.append({
'url': media_url,
'ext': 'mp3',
})
self._sort_formats(formats)
title = derivative.get('shortName') or data.get('shortName') or self._og_search_title(webpage)
duration = float_or_none(data.get('duration'))
view_count = int_or_none(data.get('viewCount'))
return {
'id': video_id,
'title': title,
'thumbnail': self._og_search_thumbnail(webpage),
'title': self._og_search_title(webpage),
'duration': duration,
'view_count': view_count,
'formats': formats,
}