From 56d61298efa4a55b163cd5583e2cb6de2304ce86 Mon Sep 17 00:00:00 2001
From: Parth Verma <v.parth98@gmail.com>
Date: Tue, 1 May 2018 15:39:20 +0530
Subject: [PATCH] Made https?: optional in extract urls for ustream

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

diff --git a/youtube_dl/extractor/ustream.py b/youtube_dl/extractor/ustream.py
index caf390f07..beac22264 100644
--- a/youtube_dl/extractor/ustream.py
+++ b/youtube_dl/extractor/ustream.py
@@ -72,7 +72,7 @@ class UstreamIE(InfoExtractor):
     @staticmethod
     def _extract_url(webpage):
         mobj = re.search(
-            r'<iframe[^>]+?src=(["\'])(?P<url>https?://www\.ustream\.tv/embed/.+?)\1', webpage)
+            r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?:)?//www\.ustream\.tv/embed/.+?)\1', webpage)
         if mobj is not None:
             return mobj.group('url')