From d77ac737900eede5e1508b9822e71c8595fe0879 Mon Sep 17 00:00:00 2001
From: Yen Chi Hsuan <yan12125@gmail.com>
Date: Fri, 20 Jan 2017 21:59:24 +0800
Subject: [ustream] Add UstreamIE._extract_url()

Ref: #11547
---
 youtube_dl/extractor/ustream.py | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'youtube_dl/extractor/ustream.py')

diff --git a/youtube_dl/extractor/ustream.py b/youtube_dl/extractor/ustream.py
index 0c06bf36b..5737d4d16 100644
--- a/youtube_dl/extractor/ustream.py
+++ b/youtube_dl/extractor/ustream.py
@@ -69,6 +69,13 @@ class UstreamIE(InfoExtractor):
         },
     }]
 
+    @staticmethod
+    def _extract_url(webpage):
+        mobj = re.search(
+            r'<iframe[^>]+?src=(["\'])(?P<url>http://www\.ustream\.tv/embed/.+?)\1', webpage)
+        if mobj is not None:
+            return mobj.group('url')
+
     def _get_stream_info(self, url, video_id, app_id_ver, extra_note=None):
         def num_to_hex(n):
             return hex(n)[2:]
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