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import re
import json
import xml.etree.ElementTree
from .common import InfoExtractor
from ..utils import (
compat_urllib_parse,
find_xpath_attr,
compat_urlparse,
)
class BrightcoveIE(InfoExtractor):
_VALID_URL = r'https?://.*brightcove\.com/(services|viewer).*\?(?P<query>.*)'
_FEDERATED_URL_TEMPLATE = 'http://c.brightcove.com/services/viewer/htmlFederated?%s'
_PLAYLIST_URL_TEMPLATE = 'http://c.brightcove.com/services/json/experience/runtime/?command=get_programming_for_experience&playerKey=%s'
# There is a test for Brigtcove in GenericIE, that way we test both the download
# and the detection of videos, and we don't have to find an URL that is always valid
@classmethod
def _build_brighcove_url(cls, object_str):
"""
Build a Brightcove url from a xml string containing
<object class="BrightcoveExperience">{params}</object>
"""
object_doc = xml.etree.ElementTree.fromstring(object_str)
assert u'BrightcoveExperience' in object_doc.attrib['class']
params = {'flashID': object_doc.attrib['id'],
'playerID': find_xpath_attr(object_doc, './param', 'name', 'playerID').attrib['value'],
}
playerKey = find_xpath_attr(object_doc, './param', 'name', 'playerKey')
# Not all pages define this value
if playerKey is not None:
params['playerKey'] = playerKey.attrib['value']
videoPlayer = find_xpath_attr(object_doc, './param', 'name', '@videoPlayer')
if videoPlayer is not None:
params['@videoPlayer'] = videoPlayer.attrib['value']
data = compat_urllib_parse.urlencode(params)
return cls._FEDERATED_URL_TEMPLATE % data
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
query_str = mobj.group('query')
query = compat_urlparse.parse_qs(query_str)
videoPlayer = query.get('@videoPlayer')
if videoPlayer:
return self._get_video_info(videoPlayer[0], query_str)
else:
player_key = query['playerKey']
return self._get_playlist_info(player_key[0])
def _get_video_info(self, video_id, query):
request_url = self._FEDERATED_URL_TEMPLATE % query
webpage = self._download_webpage(request_url, video_id)
self.report_extraction(video_id)
info = self._search_regex(r'var experienceJSON = ({.*?});', webpage, 'json')
info = json.loads(info)['data']
video_info = info['programmedContent']['videoPlayer']['mediaDTO']
return self._extract_video_info(video_info)
def _get_playlist_info(self, player_key):
playlist_info = self._download_webpage(self._PLAYLIST_URL_TEMPLATE % player_key,
player_key, u'Downloading playlist information')
playlist_info = json.loads(playlist_info)['videoList']
videos = [self._extract_video_info(video_info) for video_info in playlist_info['mediaCollectionDTO']['videoDTOs']]
return self.playlist_result(videos, playlist_id=playlist_info['id'],
playlist_title=playlist_info['mediaCollectionDTO']['displayName'])
def _extract_video_info(self, video_info):
renditions = video_info['renditions']
renditions = sorted(renditions, key=lambda r: r['size'])
best_format = renditions[-1]
return {'id': video_info['id'],
'title': video_info['displayName'],
'url': best_format['defaultURL'],
'ext': 'mp4',
'description': video_info.get('shortDescription'),
'thumbnail': video_info.get('videoStillURL') or video_info.get('thumbnailURL'),
'uploader': video_info.get('publisherName'),
}
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