From a4358cbabd6b9e6b4bd4f26210c9db1960c21d52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaime=20Marqui=CC=81nez=20Ferra=CC=81ndiz?=
 <jaime.marquinez.ferrandiz@gmail.com>
Date: Fri, 19 Jul 2013 17:12:40 +0200
Subject: [PATCH] YoutubeIE: new algo for length 85 (closes #1080), thanks to
 @patrickslin

---
 devscripts/youtube_genalgo.py   | 4 ++--
 test/test_youtube_sig.py        | 2 +-
 youtube_dl/extractor/youtube.py | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/devscripts/youtube_genalgo.py b/devscripts/youtube_genalgo.py
index 6a33cf403..2b3879f0a 100644
--- a/devscripts/youtube_genalgo.py
+++ b/devscripts/youtube_genalgo.py
@@ -20,9 +20,9 @@ tests = [
     # 86 - vfl_ymO4Z 2013/06/27
     ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[|};?/>.<",
      "ertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!/#$%^&*()_-+={[|};?@"),
-    # 85
+    # 85 - vflSAFCP9 2013/07/19
     ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[};?/>.<",
-     "{>/?;}[.=+-_)(*&^%$#@!MqBVCXZASDFwHJKLPOIUYTREWQ0987654321mnbvcxzasdfghjklpoiuytr"),
+     "ertyuiqplkjhgfdsazx$vbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#<%^&*()_-+={[};?/c"),
     # 84
     ("qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[};?>.<",
      "<.>?;}[{=+-_)(*&^%$#@!MNBVCXZASDFGHJKLPOIUYTREWe098765432rmnbvcxzasdfghjklpoiuyt1"),
diff --git a/test/test_youtube_sig.py b/test/test_youtube_sig.py
index 817ca148c..51b300532 100644
--- a/test/test_youtube_sig.py
+++ b/test/test_youtube_sig.py
@@ -40,7 +40,7 @@ class TestYoutubeSig(unittest.TestCase):
 
     def test_85(self):
         wrong = "qwertyuioplkjhgfdsazxcvbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#$%^&*()_-+={[};?/>.<"
-        right = "{>/?;}[.=+-_)(*&^%$#@!MqBVCXZASDFwHJKLPOIUYTREWQ0987654321mnbvcxzasdfghjklpoiuytr"
+        right = "ertyuiqplkjhgfdsazx$vbnm1234567890QWERTYUIOPLKJHGFDSAZXCVBNM!@#<%^&*()_-+={[};?/c"
         self.assertEqual(sig(wrong), right)
 
     def test_84(self):
diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 2aac5dd2e..12e8fc25d 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -190,7 +190,7 @@ class YoutubeIE(InfoExtractor):
         elif len(s) == 86:
             return s[2:63] + s[82] + s[64:82] + s[63]
         elif len(s) == 85:
-            return s[76] + s[82:76:-1] + s[83] + s[75:60:-1] + s[0] + s[59:50:-1] + s[1] + s[49:2:-1]
+            return s[2:8] + s[0] + s[9:21] + s[65] + s[22:65] + s[84] + s[66:82] + s[21]
         elif len(s) == 84:
             return s[83:36:-1] + s[2] + s[35:26:-1] + s[3] + s[25:3:-1] + s[26]
         elif len(s) == 83: