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117 lines
4.3 KiB
Python
117 lines
4.3 KiB
Python
from __future__ import unicode_literals
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import json
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import re
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from .subtitles import SubtitlesInfoExtractor
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from ..utils import (
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RegexNotFoundError,
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)
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class TEDIE(SubtitlesInfoExtractor):
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_VALID_URL=r'''(?x)http://www\.ted\.com/
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(
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((?P<type_playlist>playlists)/(?P<playlist_id>\d+)) # We have a playlist
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((?P<type_talk>talks)) # We have a simple talk
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)
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(/lang/(.*?))? # The url may contain the language
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/(?P<name>\w+) # Here goes the name and then ".html"
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'''
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_TEST = {
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'url': 'http://www.ted.com/talks/dan_dennett_on_our_consciousness.html',
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'file': '102.mp4',
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'md5': '4ea1dada91e4174b53dac2bb8ace429d',
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'info_dict': {
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'title': 'The illusion of consciousness',
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'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.',
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'uploader': 'Dan Dennett',
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}
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}
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_FORMATS_PREFERENCE = {
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'low': 1,
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'medium': 2,
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'high': 3,
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}
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def _real_extract(self, url):
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m=re.match(self._VALID_URL, url, re.VERBOSE)
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if m.group('type_talk'):
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return self._talk_info(url)
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else :
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playlist_id=m.group('playlist_id')
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name=m.group('name')
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self.to_screen(u'Getting info of playlist %s: "%s"' % (playlist_id,name))
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return [self._playlist_videos_info(url,name,playlist_id)]
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def _playlist_videos_info(self, url, name, playlist_id):
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'''Returns the videos of the playlist'''
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webpage = self._download_webpage(
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url, playlist_id, 'Downloading playlist webpage')
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matches = re.finditer(
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r'<p\s+class="talk-title[^"]*"><a\s+href="(?P<talk_url>/talks/[^"]+\.html)">[^<]*</a></p>',
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webpage)
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playlist_title = self._html_search_regex(r'div class="headline">\s*?<h1>\s*?<span>(.*?)</span>',
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webpage, 'playlist title')
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playlist_entries = [
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self.url_result(u'http://www.ted.com' + m.group('talk_url'), 'TED')
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for m in matches
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]
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return self.playlist_result(
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playlist_entries, playlist_id=playlist_id, playlist_title=playlist_title)
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def _talk_info(self, url, video_id=0):
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"""Return the video for the talk in the url"""
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m = re.match(self._VALID_URL, url)
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video_name = m.group('name')
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webpage = self._download_webpage(url, video_id, 'Downloading \"%s\" page' % video_name)
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self.report_extraction(video_name)
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info_json = self._search_regex(r'"talkPage.init",({.+})\)</script>', webpage, 'info json')
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info = json.loads(info_json)
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talk_info = info['talks'][0]
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formats = [{
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'ext': 'mp4',
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'url': format_url,
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'format_id': format_id,
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'format': format_id,
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'preference': self._FORMATS_PREFERENCE.get(format_id, -1),
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} for (format_id, format_url) in talk_info['nativeDownloads'].items()]
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self._sort_formats(formats)
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video_id = talk_info['id']
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# subtitles
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video_subtitles = self.extract_subtitles(video_id, talk_info)
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if self._downloader.params.get('listsubtitles', False):
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self._list_available_subtitles(video_id, talk_info)
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return
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return {
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'id': video_id,
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'title': talk_info['title'],
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'uploader': talk_info['speaker'],
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'thumbnail': talk_info['thumb'],
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'description': self._og_search_description(webpage),
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'subtitles': video_subtitles,
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'formats': formats,
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}
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def _get_available_subtitles(self, video_id, talk_info):
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languages = [lang['languageCode'] for lang in talk_info.get('languages', [])]
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if languages:
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sub_lang_list = {}
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for l in languages:
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url = 'http://www.ted.com/talks/subtitles/id/%s/lang/%s/format/srt' % (video_id, l)
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sub_lang_list[l] = url
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return sub_lang_list
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else:
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self._downloader.report_warning(u'video doesn\'t have subtitles')
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return {}
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