From 9f9be844fcc5155ab3e832c8428c8f016bea819b Mon Sep 17 00:00:00 2001
From: Philipp Hagemeister <phihag@phihag.de>
Date: Fri, 15 Nov 2013 01:45:34 +0100
Subject: [PATCH] [youtube] Fix protocol-independent URLs (Fixes #1768)

---
 youtube_dl/extractor/youtube.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index c992cba97..ed82e4fc0 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -1019,6 +1019,8 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
         """Turn the encrypted s field into a working signature"""
 
         if player_url is not None:
+            if player_url.startswith(u'//'):
+                player_url = u'https:' + player_url
             try:
                 player_id = (player_url, len(s))
                 if player_id not in self._player_cache:
-- 
2.39.5