[slideslive] Add extractor (closes #2680)

youtube_dl/extractor/extractors.py

@@ -943,6 +943,7 @@
 )
 from .skysports import SkySportsIE
 from .slideshare import SlideshareIE
+from .slideslive import SlidesLiveIE
 from .slutload import SlutloadIE
 from .smotri import (
     SmotriIE,

youtube_dl/extractor/slideslive.py

@@ -0,0 +1,34 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+from .common import InfoExtractor
+from ..utils import ExtractorError
+
+
+class SlidesLiveIE(InfoExtractor):
+    _VALID_URL = r'https?://slideslive\.com/(?P<id>[0-9]+)'
+    _TESTS = [{
+        'url': 'https://slideslive.com/38902413/gcc-ia16-backend',
+        'md5': 'b29fcd6c6952d0c79c5079b0e7a07e6f',
+        'info_dict': {
+            'id': 'LMtgR8ba0b0',
+            'ext': 'mp4',
+            'title': '38902413: external video',
+            'description': '3890241320170925-9-1yd6ech.mp4',
+            'uploader': 'SlidesLive Administrator',
+            'uploader_id': 'UC62SdArr41t_-_fX40QCLRw',
+            'upload_date': '20170925',
+        }
+    }]
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        video_data = self._download_json(
+            url, video_id, headers={'Accept': 'application/json'})
+        service_name = video_data['video_service_name']
+        if service_name == 'YOUTUBE':
+            yt_video_id = video_data['video_service_id']
+            return self.url_result(yt_video_id, 'Youtube', video_id=yt_video_id)
+        else:
+            raise ExtractorError(
+                'Unsupported service name: {0}'.format(service_name), expected=True)