]> Raphaƫl G. Git Repositories - youtubedl/blobdiff - youtube_dl/extractor/ted.py
New upstream version 2018.04.25
[youtubedl] / youtube_dl / extractor / ted.py
index cd4af96fdb02b2f4ea392fe19482371b6a02acad..06a27fd0428b469abb64e6428faf263fc080cc33 100644 (file)
@@ -3,17 +3,20 @@ from __future__ import unicode_literals
 import json
 import re
 
-from .subtitles import SubtitlesInfoExtractor
+from .common import InfoExtractor
 
+from ..compat import compat_str
 from ..utils import (
-    compat_str,
+    int_or_none,
+    try_get,
 )
 
 
-class TEDIE(SubtitlesInfoExtractor):
+class TEDIE(InfoExtractor):
+    IE_NAME = 'ted'
     _VALID_URL = r'''(?x)
         (?P<proto>https?://)
-        (?P<type>www|embed)(?P<urlmain>\.ted\.com/
+        (?P<type>www|embed(?:-ssl)?)(?P<urlmain>\.ted\.com/
         (
             (?P<type_playlist>playlists(?:/\d+)?) # We have a playlist
             |
@@ -27,36 +30,43 @@ class TEDIE(SubtitlesInfoExtractor):
         '''
     _TESTS = [{
         'url': 'http://www.ted.com/talks/dan_dennett_on_our_consciousness.html',
-        'md5': 'fc94ac279feebbce69f21c0c6ee82810',
+        'md5': '0de43ac406aa3e4ea74b66c9c7789b13',
         '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.'),
+                            '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,
+            'width': 853,
+            'duration': 1308,
         }
     }, {
         'url': 'http://www.ted.com/watch/ted-institute/ted-bcg/vishal-sikka-the-beauty-and-power-of-algorithms',
-        'md5': '226f4fb9c62380d11b7995efa4c87994',
+        'md5': 'b899ac15e345fb39534d913f7606082b',
         'info_dict': {
-            'id': 'vishal-sikka-the-beauty-and-power-of-algorithms',
+            'id': 'tSVI8ta_P4w',
             '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.',
-        }
+            'thumbnail': r're:^https?://.+\.jpg',
+            'description': 'md5:6261fdfe3e02f4f579cbbfc00aff73f4',
+            'upload_date': '20140122',
+            'uploader_id': 'TEDInstitute',
+            'uploader': 'TED Institute',
+        },
+        'add_ie': ['Youtube'],
     }, {
         'url': 'http://www.ted.com/talks/gabby_giffords_and_mark_kelly_be_passionate_be_courageous_be_your_best',
+        'md5': '71b3ab2f4233012dce09d515c9c39ce2',
         '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',
@@ -71,7 +81,7 @@ class TEDIE(SubtitlesInfoExtractor):
         'add_ie': ['Youtube'],
         'info_dict': {
             'id': '_ZG8HBuDjgc',
-            'ext': 'mp4',
+            'ext': 'webm',
             'title': 'Douglas Adams: Parrots the Universe and Everything',
             'description': 'md5:01ad1e199c49ac640cb1196c0e9016af',
             'uploader': 'University of California Television (UCTV)',
@@ -81,22 +91,39 @@ class TEDIE(SubtitlesInfoExtractor):
         'params': {
             'skip_download': True,
         },
+    }, {
+        # YouTube video
+        'url': 'http://www.ted.com/talks/jeffrey_kluger_the_sibling_bond',
+        'add_ie': ['Youtube'],
+        'info_dict': {
+            'id': 'aFBIPO-P7LM',
+            'ext': 'mp4',
+            'title': 'The hidden power of siblings: Jeff Kluger at TEDxAsheville',
+            'description': 'md5:3d7a4f50d95ca5dd67104e2a20f43fe1',
+            'uploader': 'TEDx Talks',
+            'uploader_id': 'TEDxTalks',
+            'upload_date': '20111216',
+        },
+        'params': {
+            'skip_download': True,
+        },
     }]
 
     _NATIVE_FORMATS = {
-        'low': {'preference': 1, 'width': 320, 'height': 180},
-        'medium': {'preference': 2, 'width': 512, 'height': 288},
-        'high': {'preference': 3, 'width': 854, 'height': 480},
+        'low': {'width': 320, 'height': 180},
+        'medium': {'width': 512, 'height': 288},
+        'high': {'width': 854, 'height': 480},
     }
 
     def _extract_info(self, webpage):
-        info_json = self._search_regex(r'q\("\w+.init",({.+})\)</script>',
+        info_json = self._search_regex(
+            r'(?s)q\(\s*"\w+.init"\s*,\s*({.+})\)\s*</script>',
             webpage, 'info json')
         return json.loads(info_json)
 
     def _real_extract(self, url):
         m = re.match(self._VALID_URL, url, re.VERBOSE)
-        if m.group('type') == 'embed':
+        if m.group('type').startswith('embed'):
             desktop_url = m.group('proto') + 'www' + m.group('urlmain')
             return self.url_result(desktop_url, 'TED')
         name = m.group('name')
@@ -111,13 +138,18 @@ class TEDIE(SubtitlesInfoExtractor):
         '''Returns the videos of the playlist'''
 
         webpage = self._download_webpage(url, name,
-            'Downloading playlist webpage')
+                                         'Downloading playlist webpage')
         info = self._extract_info(webpage)
-        playlist_info = info['playlist']
+
+        playlist_info = try_get(
+            info, lambda x: x['__INITIAL_DATA__']['playlist'],
+            dict) or info['playlist']
 
         playlist_entries = [
             self.url_result('http://www.ted.com/talks/' + talk['slug'], self.ie_key())
-            for talk in info['talks']
+            for talk in try_get(
+                info, lambda x: x['__INITIAL_DATA__']['talks'],
+                dict) or info['talks']
         ]
         return self.playlist_result(
             playlist_entries,
@@ -126,78 +158,147 @@ class TEDIE(SubtitlesInfoExtractor):
 
     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]
+        info = self._extract_info(webpage)
+
+        talk_info = try_get(
+            info, lambda x: x['__INITIAL_DATA__']['talks'][0],
+            dict) or info['talks'][0]
+
+        title = talk_info['title'].strip()
 
-        if talk_info.get('external') is not None:
-            self.to_screen('Found video from %s' % talk_info['external']['service'])
+        external = talk_info.get('external')
+        if external:
+            service = external['service']
+            self.to_screen('Found video from %s' % service)
+            ext_url = None
+            if service.lower() == 'youtube':
+                ext_url = external.get('code')
             return {
                 '_type': 'url',
-                'url': talk_info['external']['uri'],
+                'url': ext_url or external['uri'],
             }
 
+        native_downloads = try_get(
+            talk_info, lambda x: x['downloads']['nativeDownloads'],
+            dict) or talk_info['nativeDownloads']
+
         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]
+        } for (format_id, format_url) in native_downloads.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']]
+
+        player_talk = talk_info['player_talks'][0]
+
+        resources_ = player_talk.get('resources') or talk_info.get('resources')
+
+        http_url = None
+        for format_id, resources in resources_.items():
+            if format_id == 'h264':
+                for resource in resources:
+                    h264_url = resource.get('file')
+                    if not h264_url:
+                        continue
+                    bitrate = int_or_none(resource.get('bitrate'))
+                    formats.append({
+                        'url': h264_url,
+                        'format_id': '%s-%sk' % (format_id, bitrate),
+                        'tbr': bitrate,
+                    })
+                    if re.search(r'\d+k', h264_url):
+                        http_url = h264_url
+            elif format_id == 'rtmp':
+                streamer = talk_info.get('streamer')
+                if not streamer:
+                    continue
+                for resource in resources:
+                    formats.append({
+                        'format_id': '%s-%s' % (format_id, resource.get('name')),
+                        'url': streamer,
+                        'play_path': resource['file'],
+                        'ext': 'flv',
+                        'width': int_or_none(resource.get('width')),
+                        'height': int_or_none(resource.get('height')),
+                        'tbr': int_or_none(resource.get('bitrate')),
+                    })
+            elif format_id == 'hls':
+                formats.extend(self._extract_m3u8_formats(
+                    resources.get('stream'), video_name, 'mp4', m3u8_id=format_id, fatal=False))
+
+        m3u8_formats = list(filter(
+            lambda f: f.get('protocol') == 'm3u8' and f.get('vcodec') != 'none',
+            formats))
+        if http_url:
+            for m3u8_format in m3u8_formats:
+                bitrate = self._search_regex(r'(\d+k)', m3u8_format['url'], 'bitrate', default=None)
+                if not bitrate:
+                    continue
+                f = m3u8_format.copy()
+                f.update({
+                    'url': re.sub(r'\d+k', bitrate, http_url),
+                    'format_id': m3u8_format['format_id'].replace('hls', 'http'),
+                    'protocol': 'http',
+                })
+                formats.append(f)
+
+        audio_download = talk_info.get('audioDownload')
+        if audio_download:
+            formats.append({
+                'url': audio_download,
+                'format_id': 'audio',
+                'vcodec': 'none',
+            })
+
         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,
+            'title': title,
+            'uploader': player_talk.get('speaker') or talk_info.get('speaker'),
+            'thumbnail': player_talk.get('thumb') or talk_info.get('thumb'),
             'description': self._og_search_description(webpage),
-            'subtitles': video_subtitles,
+            'subtitles': self._get_subtitles(video_id, talk_info),
             '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 _get_subtitles(self, video_id, talk_info):
+        sub_lang_list = {}
+        for language in try_get(
+                talk_info,
+                (lambda x: x['downloads']['languages'],
+                 lambda x: x['languages']), list):
+            lang_code = language.get('languageCode') or language.get('ianaCode')
+            if not lang_code:
+                continue
+            sub_lang_list[lang_code] = [
+                {
+                    'url': 'http://www.ted.com/talks/subtitles/id/%s/lang/%s/format/%s' % (video_id, lang_code, ext),
+                    'ext': ext,
+                }
+                for ext in ['ted', 'srt']
+            ]
+        return sub_lang_list
 
     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)
+            r'"pages\.jwplayer"\s*,\s*({.+?})\s*\)\s*</script>',
+            webpage, 'config', default=None)
+        if not config_json:
+            embed_url = self._search_regex(
+                r"<iframe[^>]+class='pages-video-embed__video__object'[^>]+src='([^']+)'", webpage, 'embed url')
+            return self.url_result(self._proto_relative_url(embed_url))
+        config = json.loads(config_json)['config']
         video_url = config['video']['url']
         thumbnail = config.get('image', {}).get('url')