From 4cb18ab1b96f1302f482f73989e263933e71d2e7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Fri, 23 Jun 2017 20:50:48 +0700
Subject: [PATCH] [ooyala] Skip empty format URLs (closes #13471, closes
 #13476)

---
 youtube_dl/extractor/ooyala.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/youtube_dl/extractor/ooyala.py b/youtube_dl/extractor/ooyala.py
index 84be2b1e3f..ef8adccc14 100644
--- a/youtube_dl/extractor/ooyala.py
+++ b/youtube_dl/extractor/ooyala.py
@@ -41,7 +41,7 @@ class OoyalaBaseIE(InfoExtractor):
             for stream in cur_auth_data['streams']:
                 s_url = base64.b64decode(
                     stream['url']['data'].encode('ascii')).decode('utf-8')
-                if s_url in urls:
+                if not s_url or s_url in urls:
                     continue
                 urls.append(s_url)
                 ext = determine_ext(s_url, None)