- from __future__ import unicode_literals
-
- import json
- import re
-
- from .subtitles import SubtitlesInfoExtractor
-
- from ..utils import (
- compat_str,
- )
-
-
- class TEDIE(SubtitlesInfoExtractor):
- _VALID_URL = r'''(?x)http://www\.ted\.com/
- (
- (?P<type_playlist>playlists(?:/\d+)?) # We have a playlist
- |
- ((?P<type_talk>talks)) # We have a simple talk
- )
- (/lang/(.*?))? # The url may contain the language
- /(?P<name>\w+) # Here goes the name and then ".html"
- '''
- _TEST = {
- 'url': 'http://www.ted.com/talks/dan_dennett_on_our_consciousness.html',
- 'md5': '4ea1dada91e4174b53dac2bb8ace429d',
- 'info_dict': {
- 'id': '102',
- 'ext': 'mp4',
- 'title': 'The illusion of consciousness',
- 'description': ('Philosopher Dan Dennett makes a compelling '
- 'argument that not only don\'t we understand our own '
- 'consciousness, but that half the time our brains are '
- 'actively fooling us.'),
- 'uploader': 'Dan Dennett',
- }
- }
-
- _FORMATS_PREFERENCE = {
- 'low': 1,
- 'medium': 2,
- 'high': 3,
- }
-
- def _extract_info(self, webpage):
- info_json = self._search_regex(r'q\("\w+.init",({.+})\)</script>',
- webpage, 'info json')
- return json.loads(info_json)
-
- def _real_extract(self, url):
- m = re.match(self._VALID_URL, url, re.VERBOSE)
- name = m.group('name')
- if m.group('type_talk'):
- return self._talk_info(url, name)
- else:
- return self._playlist_videos_info(url, name)
-
- def _playlist_videos_info(self, url, name):
- '''Returns the videos of the playlist'''
-
- webpage = self._download_webpage(url, name,
- 'Downloading playlist webpage')
- info = self._extract_info(webpage)
- playlist_info = info['playlist']
-
- playlist_entries = [
- self.url_result(u'http://www.ted.com/talks/' + talk['slug'], self.ie_key())
- for talk in info['talks']
- ]
- return self.playlist_result(
- playlist_entries,
- playlist_id=compat_str(playlist_info['id']),
- playlist_title=playlist_info['title'])
-
- def _talk_info(self, url, video_name):
- webpage = self._download_webpage(url, video_name)
- self.report_extraction(video_name)
-
- talk_info = self._extract_info(webpage)['talks'][0]
-
- formats = [{
- 'ext': 'mp4',
- 'url': format_url,
- 'format_id': format_id,
- 'format': format_id,
- 'preference': self._FORMATS_PREFERENCE.get(format_id, -1),
- } for (format_id, format_url) in talk_info['nativeDownloads'].items()]
- self._sort_formats(formats)
-
- video_id = compat_str(talk_info['id'])
- # subtitles
- video_subtitles = self.extract_subtitles(video_id, talk_info)
- if self._downloader.params.get('listsubtitles', False):
- self._list_available_subtitles(video_id, talk_info)
- return
-
- thumbnail = talk_info['thumb']
- if not thumbnail.startswith('http'):
- thumbnail = 'http://' + thumbnail
- return {
- 'id': video_id,
- 'title': talk_info['title'],
- 'uploader': talk_info['speaker'],
- 'thumbnail': thumbnail,
- 'description': self._og_search_description(webpage),
- 'subtitles': video_subtitles,
- 'formats': formats,
- }
-
- def _get_available_subtitles(self, video_id, talk_info):
- languages = [lang['languageCode'] for lang in talk_info.get('languages', [])]
- if languages:
- sub_lang_list = {}
- for l in languages:
- url = 'http://www.ted.com/talks/subtitles/id/%s/lang/%s/format/srt' % (video_id, l)
- sub_lang_list[l] = url
- return sub_lang_list
- else:
- self._downloader.report_warning(u'video doesn\'t have subtitles')
- return {}
|
