Merge tag 'upstream/2014.11.21'

[youtubedl] / youtube_dl / extractor / ted.py

diff --git a/youtube_dl/extractor/ted.py b/youtube_dl/extractor/ted.py
index ccad1c7c2087b533712b62aedaed43abcfa0bf90..8550380779168a80b95e526f8921059e2eddf8f4 100644 (file)
--- a/youtube_dl/extractor/ted.py
+++ b/youtube_dl/extractor/ted.py
@@ -1,79 +1,222 @@
+from __future__ import unicode_literals
+

 import json
 import re
 
 import json
 import re
 

-from .common import InfoExtractor
+from .subtitles import SubtitlesInfoExtractor
+
+from ..utils import (
+    compat_str,
+)
+

 
 

+class TEDIE(SubtitlesInfoExtractor):
+    _VALID_URL = r'''(?x)
+        (?P<proto>https?://)
+        (?P<type>www|embed)(?P<urlmain>\.ted\.com/
+        (
+            (?P<type_playlist>playlists(?:/\d+)?) # We have a playlist
+            |
+            ((?P<type_talk>talks)) # We have a simple talk
+            |
+            (?P<type_watch>watch)/[^/]+/[^/]+
+        )
+        (/lang/(.*?))? # The url may contain the language
+        /(?P<name>[\w-]+) # Here goes the name and then ".html"
+        .*)$
+        '''
+    _TESTS = [{
+        'url': 'http://www.ted.com/talks/dan_dennett_on_our_consciousness.html',
+        'md5': 'fc94ac279feebbce69f21c0c6ee82810',
+        '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',
+            'width': 854,
+            'duration': 1308,
+        }
+    }, {
+        'url': 'http://www.ted.com/watch/ted-institute/ted-bcg/vishal-sikka-the-beauty-and-power-of-algorithms',
+        'md5': '226f4fb9c62380d11b7995efa4c87994',
+        'info_dict': {
+            'id': 'vishal-sikka-the-beauty-and-power-of-algorithms',
+            'ext': 'mp4',
+            'title': 'Vishal Sikka: The beauty and power of algorithms',
+            'thumbnail': 're:^https?://.+\.jpg',
+            'description': 'Adaptive, intelligent, and consistent, algorithms are emerging as the ultimate app for everything from matching consumers to products to assessing medical diagnoses. Vishal Sikka shares his appreciation for the algorithm, charting both its inherent beauty and its growing power.',
+        }
+    }, {
+        'url': 'http://www.ted.com/talks/gabby_giffords_and_mark_kelly_be_passionate_be_courageous_be_your_best',
+        'info_dict': {
+            'id': '1972',
+            'ext': 'mp4',
+            'title': 'Be passionate. Be courageous. Be your best.',
+            'uploader': 'Gabby Giffords and Mark Kelly',
+            'description': 'md5:5174aed4d0f16021b704120360f72b92',
+            'duration': 1128,
+        },
+    }, {
+        'url': 'http://www.ted.com/playlists/who_are_the_hackers',
+        'info_dict': {
+            'id': '10',
+            'title': 'Who are the hackers?',
+        },
+        'playlist_mincount': 6,
+    }, {
+        # contains a youtube video
+        'url': 'https://www.ted.com/talks/douglas_adams_parrots_the_universe_and_everything',
+        'add_ie': ['Youtube'],
+        'info_dict': {
+            'id': '_ZG8HBuDjgc',
+            'ext': 'mp4',
+            'title': 'Douglas Adams: Parrots the Universe and Everything',
+            'description': 'md5:01ad1e199c49ac640cb1196c0e9016af',
+            'uploader': 'University of California Television (UCTV)',
+            'uploader_id': 'UCtelevision',
+            'upload_date': '20080522',
+        },
+        'params': {
+            'skip_download': True,
+        },
+    }]

 
 

-class TEDIE(InfoExtractor):
-    _VALID_URL=r'''http://www\.ted\.com/
-                   (
-                        ((?P<type_playlist>playlists)/(?P<playlist_id>\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"
-                   '''
+    _NATIVE_FORMATS = {
+        'low': {'preference': 1, 'width': 320, 'height': 180},
+        'medium': {'preference': 2, 'width': 512, 'height': 288},
+        'high': {'preference': 3, 'width': 854, 'height': 480},
+    }

 
 

-    @classmethod
-    def suitable(cls, url):
-        """Receives a URL and returns True if suitable for this IE."""
-        return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
+    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):
 
     def _real_extract(self, url):

-        m=re.match(self._VALID_URL, url, re.VERBOSE)
+        m = re.match(self._VALID_URL, url, re.VERBOSE)
+        if m.group('type') == 'embed':
+            desktop_url = m.group('proto') + 'www' + m.group('urlmain')
+            return self.url_result(desktop_url, 'TED')
+        name = m.group('name')

         if m.group('type_talk'):
         if m.group('type_talk'):

-            return [self._talk_info(url)]
-        else :
-            playlist_id=m.group('playlist_id')
-            name=m.group('name')
-            self.to_screen(u'Getting info of playlist %s: "%s"' % (playlist_id,name))
-            return [self._playlist_videos_info(url,name,playlist_id)]
-
-    def _playlist_videos_info(self,url,name,playlist_id=0):
+            return self._talk_info(url, name)
+        elif m.group('type_watch'):
+            return self._watch_info(url, name)
+        else:
+            return self._playlist_videos_info(url, name)
+
+    def _playlist_videos_info(self, url, name):

         '''Returns the videos of the playlist'''
         '''Returns the videos of the playlist'''

-        video_RE=r'''
-                     <li\ id="talk_(\d+)"([.\s]*?)data-id="(?P<video_id>\d+)"
-                     ([.\s]*?)data-playlist_item_id="(\d+)"
-                     ([.\s]*?)data-mediaslug="(?P<mediaSlug>.+?)"
-                     '''
-        video_name_RE=r'<p\ class="talk-title"><a href="(?P<talk_url>/talks/(.+).html)">(?P<fullname>.+?)</a></p>'
-        webpage=self._download_webpage(url, playlist_id, 'Downloading playlist webpage')
-        m_videos=re.finditer(video_RE,webpage,re.VERBOSE)
-        m_names=re.finditer(video_name_RE,webpage)
-
-        playlist_title = self._html_search_regex(r'div class="headline">\s*?<h1>\s*?<span>(.*?)</span>',
-                                                 webpage, 'playlist title')
-
-        playlist_entries = []
-        for m_video, m_name in zip(m_videos,m_names):
-            talk_url='http://www.ted.com%s' % m_name.group('talk_url')
-            playlist_entries.append(self.url_result(talk_url, 'TED'))
-        return self.playlist_result(playlist_entries, playlist_id = playlist_id, playlist_title = playlist_title)
-
-    def _talk_info(self, url, video_id=0):
-        """Return the video for the talk in the url"""
-        m = re.match(self._VALID_URL, url,re.VERBOSE)
-        video_name = m.group('name')
-        webpage = self._download_webpage(url, video_id, 'Downloading \"%s\" page' % video_name)
+
+        webpage = self._download_webpage(url, name,
+            'Downloading playlist webpage')
+        info = self._extract_info(webpage)
+        playlist_info = info['playlist']
+
+        playlist_entries = [
+            self.url_result('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)
         self.report_extraction(video_name)

-        # If the url includes the language we get the title translated
-        title = self._html_search_regex(r'<span id="altHeadline" >(?P<title>.*)</span>',
-                                        webpage, 'title')
-        json_data = self._search_regex(r'<script.*?>var talkDetails = ({.*?})</script>',
-                                    webpage, 'json data')
-        info = json.loads(json_data)
-        desc = self._html_search_regex(r'<div class="talk-intro">.*?<p.*?>(.*?)</p>',
-                                       webpage, 'description', flags = re.DOTALL)
-        
-        thumbnail = self._search_regex(r'</span>[\s.]*</div>[\s.]*<img src="(.*?)"',
-                                       webpage, 'thumbnail')
-        info = {
-                'id': info['id'],
-                'url': info['htmlStreams'][-1]['file'],
-                'ext': 'mp4',
-                'title': title,
-                'thumbnail': thumbnail,
-                'description': desc,
-                }
-        return info
+
+        talk_info = self._extract_info(webpage)['talks'][0]
+
+        if talk_info.get('external') is not None:
+            self.to_screen('Found video from %s' % talk_info['external']['service'])
+            return {
+                '_type': 'url',
+                'url': talk_info['external']['uri'],
+            }
+
+        formats = [{
+            'url': format_url,
+            'format_id': format_id,
+            'format': format_id,
+        } for (format_id, format_url) in talk_info['nativeDownloads'].items() if format_url is not None]
+        if formats:
+            for f in formats:
+                finfo = self._NATIVE_FORMATS.get(f['format_id'])
+                if finfo:
+                    f.update(finfo)
+        else:
+            # Use rtmp downloads
+            formats = [{
+                'format_id': f['name'],
+                'url': talk_info['streamer'],
+                'play_path': f['file'],
+                'ext': 'flv',
+                'width': f['width'],
+                'height': f['height'],
+                'tbr': f['bitrate'],
+            } for f in talk_info['resources']['rtmp']]
+        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'].strip(),
+            'uploader': talk_info['speaker'],
+            'thumbnail': thumbnail,
+            'description': self._og_search_description(webpage),
+            'subtitles': video_subtitles,
+            'formats': formats,
+            'duration': talk_info.get('duration'),
+        }
+
+    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('video doesn\'t have subtitles')
+            return {}
+
+    def _watch_info(self, url, name):
+        webpage = self._download_webpage(url, name)
+
+        config_json = self._html_search_regex(
+            r"data-config='([^']+)", webpage, 'config')
+        config = json.loads(config_json)
+        video_url = config['video']['url']
+        thumbnail = config.get('image', {}).get('url')
+
+        title = self._html_search_regex(
+            r"(?s)<h1(?:\s+class='[^']+')?>(.+?)</h1>", webpage, 'title')
+        description = self._html_search_regex(
+            [
+                r'(?s)<h4 class="[^"]+" id="h3--about-this-talk">.*?</h4>(.*?)</div>',
+                r'(?s)<p><strong>About this talk:</strong>\s+(.*?)</p>',
+            ],
+            webpage, 'description', fatal=False)
+
+        return {
+            'id': name,
+            'url': video_url,
+            'title': title,
+            'thumbnail': thumbnail,
+            'description': description,
+        }