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[youtubedl] / youtube_dl / extractor / pbs.py
1 # coding: utf-8
2 from __future__ import unicode_literals
3
4 import re
5
6 from .common import InfoExtractor
7 from ..utils import (
8 ExtractorError,
9 determine_ext,
10 int_or_none,
11 strip_jsonp,
12 unified_strdate,
13 US_RATINGS,
14 )
15
16
17 class PBSIE(InfoExtractor):
18 _VALID_URL = r'''(?x)https?://
19 (?:
20 # Direct video URL
21 video\.pbs\.org/(?:viralplayer|video)/(?P<id>[0-9]+)/? |
22 # Article with embedded player (or direct video)
23 (?:www\.)?pbs\.org/(?:[^/]+/){2,5}(?P<presumptive_id>[^/]+?)(?:\.html)?/?(?:$|[?\#]) |
24 # Player
25 video\.pbs\.org/(?:widget/)?partnerplayer/(?P<player_id>[^/]+)/
26 )
27 '''
28
29 _TESTS = [
30 {
31 'url': 'http://www.pbs.org/tpt/constitution-usa-peter-sagal/watch/a-more-perfect-union/',
32 'md5': 'ce1888486f0908d555a8093cac9a7362',
33 'info_dict': {
34 'id': '2365006249',
35 'ext': 'mp4',
36 'title': 'Constitution USA with Peter Sagal - A More Perfect Union',
37 'description': 'md5:ba0c207295339c8d6eced00b7c363c6a',
38 'duration': 3190,
39 },
40 'params': {
41 'skip_download': True, # requires ffmpeg
42 },
43 },
44 {
45 'url': 'http://www.pbs.org/wgbh/pages/frontline/losing-iraq/',
46 'md5': '143c98aa54a346738a3d78f54c925321',
47 'info_dict': {
48 'id': '2365297690',
49 'ext': 'mp4',
50 'title': 'FRONTLINE - Losing Iraq',
51 'description': 'md5:f5bfbefadf421e8bb8647602011caf8e',
52 'duration': 5050,
53 },
54 'params': {
55 'skip_download': True, # requires ffmpeg
56 }
57 },
58 {
59 'url': 'http://www.pbs.org/newshour/bb/education-jan-june12-cyberschools_02-23/',
60 'md5': 'b19856d7f5351b17a5ab1dc6a64be633',
61 'info_dict': {
62 'id': '2201174722',
63 'ext': 'mp4',
64 'title': 'PBS NewsHour - Cyber Schools Gain Popularity, but Quality Questions Persist',
65 'description': 'md5:5871c15cba347c1b3d28ac47a73c7c28',
66 'duration': 801,
67 },
68 },
69 {
70 'url': 'http://www.pbs.org/wnet/gperf/dudamel-conducts-verdi-requiem-hollywood-bowl-full-episode/3374/',
71 'md5': 'c62859342be2a0358d6c9eb306595978',
72 'info_dict': {
73 'id': '2365297708',
74 'ext': 'mp4',
75 'description': 'md5:68d87ef760660eb564455eb30ca464fe',
76 'title': 'Great Performances - Dudamel Conducts Verdi Requiem at the Hollywood Bowl - Full',
77 'duration': 6559,
78 'thumbnail': 're:^https?://.*\.jpg$',
79 },
80 'params': {
81 'skip_download': True, # requires ffmpeg
82 },
83 },
84 {
85 'url': 'http://www.pbs.org/wgbh/nova/earth/killer-typhoon.html',
86 'md5': '908f3e5473a693b266b84e25e1cf9703',
87 'info_dict': {
88 'id': '2365160389',
89 'display_id': 'killer-typhoon',
90 'ext': 'mp4',
91 'description': 'md5:c741d14e979fc53228c575894094f157',
92 'title': 'NOVA - Killer Typhoon',
93 'duration': 3172,
94 'thumbnail': 're:^https?://.*\.jpg$',
95 'upload_date': '20140122',
96 'age_limit': 10,
97 },
98 'params': {
99 'skip_download': True, # requires ffmpeg
100 },
101 },
102 {
103 'url': 'http://www.pbs.org/wgbh/pages/frontline/united-states-of-secrets/',
104 'info_dict': {
105 'id': 'united-states-of-secrets',
106 },
107 'playlist_count': 2,
108 },
109 {
110 'url': 'http://www.pbs.org/wgbh/americanexperience/films/death/player/',
111 'info_dict': {
112 'id': '2276541483',
113 'display_id': 'player',
114 'ext': 'mp4',
115 'title': 'American Experience - Death and the Civil War, Chapter 1',
116 'description': 'American Experience, TV’s most-watched history series, brings to life the compelling stories from our past that inform our understanding of the world today.',
117 'duration': 682,
118 'thumbnail': 're:^https?://.*\.jpg$',
119 },
120 'params': {
121 'skip_download': True, # requires ffmpeg
122 },
123 },
124 {
125 'url': 'http://video.pbs.org/video/2365367186/',
126 'info_dict': {
127 'id': '2365367186',
128 'display_id': '2365367186',
129 'ext': 'mp4',
130 'title': 'To Catch A Comet - Full Episode',
131 'description': 'On November 12, 2014, billions of kilometers from Earth, spacecraft orbiter Rosetta and lander Philae did what no other had dared to attempt \u2014 land on the volatile surface of a comet as it zooms around the sun at 67,000 km/hr. The European Space Agency hopes this mission can help peer into our past and unlock secrets of our origins.',
132 'duration': 3342,
133 'thumbnail': 're:^https?://.*\.jpg$',
134 },
135 'params': {
136 'skip_download': True, # requires ffmpeg
137 },
138 'skip': 'Expired',
139 },
140 {
141 # Video embedded in iframe containing angle brackets as attribute's value (e.g.
142 # "<iframe style='position: absolute;<br />\ntop: 0; left: 0;' ...", see
143 # https://github.com/rg3/youtube-dl/issues/7059)
144 'url': 'http://www.pbs.org/food/features/a-chefs-life-season-3-episode-5-prickly-business/',
145 'info_dict': {
146 'id': '2365546844',
147 'display_id': 'a-chefs-life-season-3-episode-5-prickly-business',
148 'ext': 'mp4',
149 'title': "A Chef's Life - Season 3, Ep. 5: Prickly Business",
150 'description': 'md5:61db2ddf27c9912f09c241014b118ed1',
151 'duration': 1480,
152 'thumbnail': 're:^https?://.*\.jpg$',
153 },
154 'params': {
155 'skip_download': True, # requires ffmpeg
156 },
157 },
158 {
159 # Frontline video embedded via flp2012.js
160 'url': 'http://www.pbs.org/wgbh/pages/frontline/the-atomic-artists',
161 'info_dict': {
162 'id': '2070868960',
163 'display_id': 'the-atomic-artists',
164 'ext': 'mp4',
165 'title': 'FRONTLINE - The Atomic Artists',
166 'description': 'md5:f5bfbefadf421e8bb8647602011caf8e',
167 'duration': 723,
168 'thumbnail': 're:^https?://.*\.jpg$',
169 },
170 'params': {
171 'skip_download': True, # requires ffmpeg
172 },
173 }
174 ]
175 _ERRORS = {
176 101: 'We\'re sorry, but this video is not yet available.',
177 403: 'We\'re sorry, but this video is not available in your region due to right restrictions.',
178 404: 'We are experiencing technical difficulties that are preventing us from playing the video at this time. Please check back again soon.',
179 410: 'This video has expired and is no longer available for online streaming.',
180 }
181
182 def _extract_webpage(self, url):
183 mobj = re.match(self._VALID_URL, url)
184
185 presumptive_id = mobj.group('presumptive_id')
186 display_id = presumptive_id
187 if presumptive_id:
188 webpage = self._download_webpage(url, display_id)
189
190 upload_date = unified_strdate(self._search_regex(
191 r'<input type="hidden" id="air_date_[0-9]+" value="([^"]+)"',
192 webpage, 'upload date', default=None))
193
194 # tabbed frontline videos
195 tabbed_videos = re.findall(
196 r'<div[^>]+class="videotab[^"]*"[^>]+vid="(\d+)"', webpage)
197 if tabbed_videos:
198 return tabbed_videos, presumptive_id, upload_date
199
200 MEDIA_ID_REGEXES = [
201 r"div\s*:\s*'videoembed'\s*,\s*mediaid\s*:\s*'(\d+)'", # frontline video embed
202 r'class="coveplayerid">([^<]+)<', # coveplayer
203 r'<input type="hidden" id="pbs_video_id_[0-9]+" value="([0-9]+)"/>', # jwplayer
204 ]
205
206 media_id = self._search_regex(
207 MEDIA_ID_REGEXES, webpage, 'media ID', fatal=False, default=None)
208 if media_id:
209 return media_id, presumptive_id, upload_date
210
211 # Fronline video embedded via flp
212 video_id = self._search_regex(
213 r'videoid\s*:\s*"([\d+a-z]{7,})"', webpage, 'videoid', default=None)
214 if video_id:
215 # pkg_id calculation is reverse engineered from
216 # http://www.pbs.org/wgbh/pages/frontline/js/flp2012.js
217 prg_id = self._search_regex(
218 r'videoid\s*:\s*"([\d+a-z]{7,})"', webpage, 'videoid')[7:]
219 if 'q' in prg_id:
220 prg_id = prg_id.split('q')[1]
221 prg_id = int(prg_id, 16)
222 getdir = self._download_json(
223 'http://www.pbs.org/wgbh/pages/frontline/.json/getdir/getdir%d.json' % prg_id,
224 presumptive_id, 'Downloading getdir JSON',
225 transform_source=strip_jsonp)
226 return getdir['mid'], presumptive_id, upload_date
227
228 for iframe in re.findall(r'(?s)<iframe(.+?)></iframe>', webpage):
229 url = self._search_regex(
230 r'src=(["\'])(?P<url>.+?partnerplayer.+?)\1', iframe,
231 'player URL', default=None, group='url')
232 if url:
233 break
234
235 mobj = re.match(self._VALID_URL, url)
236
237 player_id = mobj.group('player_id')
238 if not display_id:
239 display_id = player_id
240 if player_id:
241 player_page = self._download_webpage(
242 url, display_id, note='Downloading player page',
243 errnote='Could not download player page')
244 video_id = self._search_regex(
245 r'<div\s+id="video_([0-9]+)"', player_page, 'video ID')
246 else:
247 video_id = mobj.group('id')
248 display_id = video_id
249
250 return video_id, display_id, None
251
252 def _real_extract(self, url):
253 video_id, display_id, upload_date = self._extract_webpage(url)
254
255 if isinstance(video_id, list):
256 entries = [self.url_result(
257 'http://video.pbs.org/video/%s' % vid_id, 'PBS', vid_id)
258 for vid_id in video_id]
259 return self.playlist_result(entries, display_id)
260
261 info = self._download_json(
262 'http://video.pbs.org/videoInfo/%s?format=json&type=partner' % video_id,
263 display_id)
264
265 formats = []
266 for encoding_name in ('recommended_encoding', 'alternate_encoding'):
267 redirect = info.get(encoding_name)
268 if not redirect:
269 continue
270 redirect_url = redirect.get('url')
271 if not redirect_url:
272 continue
273
274 redirect_info = self._download_json(
275 redirect_url + '?format=json', display_id,
276 'Downloading %s video url info' % encoding_name)
277
278 if redirect_info['status'] == 'error':
279 raise ExtractorError(
280 '%s said: %s' % (
281 self.IE_NAME,
282 self._ERRORS.get(redirect_info['http_code'], redirect_info['message'])),
283 expected=True)
284
285 format_url = redirect_info.get('url')
286 if not format_url:
287 continue
288
289 if determine_ext(format_url) == 'm3u8':
290 formats.extend(self._extract_m3u8_formats(
291 format_url, display_id, 'mp4', preference=1, m3u8_id='hls'))
292 else:
293 formats.append({
294 'url': format_url,
295 'format_id': redirect.get('eeid'),
296 })
297 self._sort_formats(formats)
298
299 rating_str = info.get('rating')
300 if rating_str is not None:
301 rating_str = rating_str.rpartition('-')[2]
302 age_limit = US_RATINGS.get(rating_str)
303
304 subtitles = {}
305 closed_captions_url = info.get('closed_captions_url')
306 if closed_captions_url:
307 subtitles['en'] = [{
308 'ext': 'ttml',
309 'url': closed_captions_url,
310 }]
311
312 # info['title'] is often incomplete (e.g. 'Full Episode', 'Episode 5', etc)
313 # Try turning it to 'program - title' naming scheme if possible
314 alt_title = info.get('program', {}).get('title')
315 if alt_title:
316 info['title'] = alt_title + ' - ' + re.sub(r'^' + alt_title + '[\s\-:]+', '', info['title'])
317
318 return {
319 'id': video_id,
320 'display_id': display_id,
321 'title': info['title'],
322 'description': info['program'].get('description'),
323 'thumbnail': info.get('image_url'),
324 'duration': int_or_none(info.get('duration')),
325 'age_limit': age_limit,
326 'upload_date': upload_date,
327 'formats': formats,
328 'subtitles': subtitles,
329 }