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Raphaƫl G. Git Repositories - youtubedl/blob - youtube_dl/extractor/ted.py
1 from __future__
import unicode_literals
6 from .common
import InfoExtractor
21 class TEDIE(InfoExtractor
):
25 (?P<type>www|embed(?:-ssl)?)(?P<urlmain>\.ted\.com/
27 (?P<type_playlist>playlists(?:/(?P<playlist_id>\d+))?) # We have a playlist
29 ((?P<type_talk>talks)) # We have a simple talk
31 (?P<type_watch>watch)/[^/]+/[^/]+
33 (/lang/(.*?))? # The url may contain the language
34 /(?P<name>[\w-]+) # Here goes the name and then ".html"
38 'url': 'http://www.ted.com/talks/dan_dennett_on_our_consciousness.html',
39 'md5': 'b0ce2b05ca215042124fbc9e3886493a',
43 'title': 'The illusion of consciousness',
44 'description': ('Philosopher Dan Dennett makes a compelling '
45 'argument that not only don\'t we understand our own '
46 'consciousness, but that half the time our brains are '
47 'actively fooling us.'),
48 'uploader': 'Dan Dennett',
56 'skip_download': True,
59 # missing HTTP bitrates
60 'url': 'https://www.ted.com/talks/vishal_sikka_the_beauty_and_power_of_algorithms',
64 'title': 'The beauty and power of algorithms',
65 'thumbnail': r
're:^https?://.+\.jpg',
66 'description': 'md5:734e352710fb00d840ab87ae31aaf688',
67 'uploader': 'Vishal Sikka',
70 'skip_download': True,
73 'url': 'http://www.ted.com/talks/gabby_giffords_and_mark_kelly_be_passionate_be_courageous_be_your_best',
74 'md5': 'e6b9617c01a7970ceac8bb2c92c346c0',
78 'title': 'Be passionate. Be courageous. Be your best.',
79 'uploader': 'Gabby Giffords and Mark Kelly',
80 'description': 'md5:5174aed4d0f16021b704120360f72b92',
84 'skip_download': True,
87 'url': 'http://www.ted.com/playlists/who_are_the_hackers',
90 'title': 'Who are the hackers?',
91 'description': 'md5:49a0dbe8fb76d81a0e64b4a80af7f15a'
93 'playlist_mincount': 6,
95 # contains a youtube video
96 'url': 'https://www.ted.com/talks/douglas_adams_parrots_the_universe_and_everything',
97 'add_ie': ['Youtube'],
101 'title': 'Douglas Adams: Parrots the Universe and Everything',
102 'description': 'md5:01ad1e199c49ac640cb1196c0e9016af',
103 'uploader': 'University of California Television (UCTV)',
104 'uploader_id': 'UCtelevision',
105 'upload_date': '20080522',
108 'skip_download': True,
112 'url': 'https://www.ted.com/talks/tom_thum_the_orchestra_in_my_mouth',
116 'title': 'The orchestra in my mouth',
117 'description': 'md5:5d1d78650e2f8dfcbb8ebee2951ac29a',
118 'uploader': 'Tom Thum',
120 'comment_count': int,
124 'skip_download': True,
129 'low': {'width': 320, 'height': 180},
130 'medium': {'width': 512, 'height': 288},
131 'high': {'width': 854, 'height': 480},
134 def _extract_info(self
, webpage
):
135 info_json
= self
._search
_regex
(
136 r
'(?s)q\(\s*"\w+.init"\s*,\s*({.+?})\)\s*</script>',
137 webpage
, 'info json')
138 return json
.loads(info_json
)
140 def _real_extract(self
, url
):
141 m
= re
.match(self
._VALID
_URL
, url
, re
.VERBOSE
)
142 if m
.group('type').startswith('embed'):
143 desktop_url
= m
.group('proto') + 'www' + m
.group('urlmain')
144 return self
.url_result(desktop_url
, 'TED')
145 name
= m
.group('name')
146 if m
.group('type_talk'):
147 return self
._talk
_info
(url
, name
)
148 elif m
.group('type_watch'):
149 return self
._watch
_info
(url
, name
)
151 return self
._playlist
_videos
_info
(url
, name
)
153 def _playlist_videos_info(self
, url
, name
):
154 '''Returns the videos of the playlist'''
156 webpage
= self
._download
_webpage
(url
, name
,
157 'Downloading playlist webpage')
159 playlist_entries
= []
160 for entry
in re
.findall(r
'(?s)<[^>]+data-ga-context=["\']playlist
["\'][^>]*>', webpage):
161 attrs = extract_attributes(entry)
162 entry_url = compat_urlparse.urljoin(url, attrs['href'])
163 playlist_entries.append(self.url_result(entry_url, self.ie_key()))
165 final_url = self._og_search_url(webpage, fatal=False)
167 re.match(self._VALID_URL, final_url).group('playlist_id')
168 if final_url else None)
170 return self.playlist_result(
171 playlist_entries, playlist_id=playlist_id,
172 playlist_title=self._og_search_title(webpage, fatal=False),
173 playlist_description=self._og_search_description(webpage))
175 def _talk_info(self, url, video_name):
176 webpage = self._download_webpage(url, video_name)
178 info = self._extract_info(webpage)
180 data = try_get(info, lambda x: x['__INITIAL_DATA__'], dict) or info
181 talk_info = data['talks'][0]
183 title = talk_info['title'].strip()
185 downloads = talk_info.get('downloads') or {}
186 native_downloads = downloads.get('nativeDownloads') or talk_info.get('nativeDownloads') or {}
190 'format_id': format_id,
191 } for (format_id, format_url) in native_downloads.items() if format_url is not None]
193 subtitled_downloads = downloads.get('subtitledDownloads') or {}
194 for lang, subtitled_download in subtitled_downloads.items():
195 for q in self._NATIVE_FORMATS:
196 q_url = subtitled_download.get(q)
201 'format_id': '%s-%s' % (q, lang),
207 finfo = self._NATIVE_FORMATS.get(f['format_id'].split('-')[0])
211 player_talk = talk_info['player_talks'][0]
213 external = player_talk.get('external')
214 if isinstance(external, dict):
215 service = external.get('service')
216 if isinstance(service, compat_str):
218 if service.lower() == 'youtube':
219 ext_url = external.get('code')
221 return self.url_result(ext_url or external['uri'])
223 resources_ = player_talk.get('resources') or talk_info.get('resources')
226 for format_id, resources in resources_.items():
227 if format_id == 'hls':
228 if not isinstance(resources, dict):
230 stream_url = url_or_none(resources.get('stream'))
233 formats.extend(self._extract_m3u8_formats(
234 stream_url, video_name, 'mp4', m3u8_id=format_id,
237 if not isinstance(resources, list):
239 if format_id == 'h264':
240 for resource in resources:
241 h264_url = resource.get('file')
244 bitrate = int_or_none(resource.get('bitrate'))
247 'format_id': '%s-%sk' % (format_id, bitrate),
250 if re.search(r'\d+k', h264_url):
252 elif format_id == 'rtmp':
253 streamer = talk_info.get('streamer')
256 for resource in resources:
258 'format_id': '%s-%s' % (format_id, resource.get('name')),
260 'play_path': resource['file'],
262 'width': int_or_none(resource.get('width')),
263 'height': int_or_none(resource.get('height')),
264 'tbr': int_or_none(resource.get('bitrate')),
267 m3u8_formats = list(filter(
268 lambda f: f.get('protocol') == 'm3u8' and f.get('vcodec') != 'none',
271 for m3u8_format in m3u8_formats:
272 bitrate = self._search_regex(r'(\d+k)', m3u8_format['url'], 'bitrate', default=None)
275 bitrate_url = re.sub(r'\d+k', bitrate, http_url)
276 if not self._is_valid_url(
277 bitrate_url, video_name, '%s bitrate' % bitrate):
279 f = m3u8_format.copy()
282 'format_id': m3u8_format['format_id'].replace('hls', 'http'),
285 if f.get('acodec') == 'none':
289 audio_download = talk_info.get('audioDownload')
292 'url': audio_download,
293 'format_id': 'audio',
297 self._sort_formats(formats)
299 video_id = compat_str(talk_info['id'])
304 'uploader': player_talk.get('speaker') or talk_info.get('speaker'),
305 'thumbnail': player_talk.get('thumb') or talk_info.get('thumb'),
306 'description': self._og_search_description(webpage),
307 'subtitles': self._get_subtitles(video_id, talk_info),
309 'duration': float_or_none(talk_info.get('duration')),
310 'view_count': int_or_none(data.get('viewed_count')),
311 'comment_count': int_or_none(
312 try_get(data, lambda x: x['comments']['count'])),
313 'tags': try_get(talk_info, lambda x: x['tags'], list),
316 def _get_subtitles(self, video_id, talk_info):
318 for language in try_get(
320 (lambda x: x['downloads']['languages'],
321 lambda x: x['languages']), list):
322 lang_code = language.get('languageCode') or language.get('ianaCode')
325 sub_lang_list[lang_code] = [
327 'url': 'http://www.ted.com/talks/subtitles/id/%s/lang/%s/format/%s' % (video_id, lang_code, ext),
330 for ext in ['ted', 'srt']
334 def _watch_info(self, url, name):
335 webpage = self._download_webpage(url, name)
337 config_json = self._html_search_regex(
338 r'"pages\
.jwplayer
"\s*,\s*({.+?})\s*\)\s*</script>',
339 webpage, 'config', default=None)
341 embed_url = self._search_regex(
342 r"<iframe
[^
>]+class='pages-video-embed__video__object'[^
>]+src
='([^']+)'", webpage, 'embed url
')
343 return self.url_result(self._proto_relative_url(embed_url))
344 config = json.loads(config_json)['config
']
345 video_url = config['video
']['url
']
346 thumbnail = config.get('image
', {}).get('url
')
348 title = self._html_search_regex(
349 r"(?s)<h1(?:\s+class='[^
']+')?
>(.+?
)</h1
>", webpage, 'title')
350 description = self._html_search_regex(
352 r'(?s)<h4 class="[^
"]+" id="h3--about-this-talk">.*?
</h4
>(.*?
)</div
>',
353 r'(?s
)<p
><strong
>About this talk
:</strong
>\s
+(.*?
)</p
>',
355 webpage, 'description
', fatal=False)
361 'thumbnail
': thumbnail,
362 'description
': description,