[ooyala] use api v2 to reduce requests for format extraction

youtube_dl/extractor/ooyala.py

@@ -15,7 +15,7 @@ from ..compat import compat_urllib_parse_urlencode
 class OoyalaBaseIE(InfoExtractor):
     _PLAYER_BASE = 'http://player.ooyala.com/'
     _CONTENT_TREE_BASE = _PLAYER_BASE + 'player_api/v1/content_tree/'
-    _AUTHORIZATION_URL_TEMPLATE = _PLAYER_BASE + 'sas/player_api/v1/authorization/embed_code/%s/%s?'
+    _AUTHORIZATION_URL_TEMPLATE = _PLAYER_BASE + 'sas/player_api/v2/authorization/embed_code/%s/%s?'
 
     def _extract(self, content_tree_url, video_id, domain='example.org'):
         content_tree = self._download_json(content_tree_url, video_id)['content_tree']
@@ -24,19 +24,17 @@ class OoyalaBaseIE(InfoExtractor):
         pcode = metadata.get('asset_pcode') or embed_code
         title = metadata['title']
 
-        urls = []
-        formats = []
-        for supported_format in ('mp4', 'm3u8', 'hds', 'rtmp'):
         auth_data = self._download_json(
             self._AUTHORIZATION_URL_TEMPLATE % (pcode, embed_code) +
             compat_urllib_parse_urlencode({
                 'domain': domain,
-                    'supportedFormats': supported_format
-                }),
-                video_id, 'Downloading %s JSON' % supported_format)
+                'supportedFormats': 'mp4,rtmp,m3u8,hds',
+            }), video_id)
 
         cur_auth_data = auth_data['authorization_data'][embed_code]
 
+        urls = []
+        formats = []
         if cur_auth_data['authorized']:
             for stream in cur_auth_data['streams']:
                 url = base64.b64decode(