From a25823bbc28bfb93f1330d7421bd2589c01386c1 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Mon, 18 Jun 2018 22:33:48 +0800
Subject: Precise playback (no more slowdown). Also the visualization should
 now sync better.

---
 core/qmpmidiread.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'core/qmpmidiread.cpp')

diff --git a/core/qmpmidiread.cpp b/core/qmpmidiread.cpp
index e7d92d3..d5f20ff 100644
--- a/core/qmpmidiread.cpp
+++ b/core/qmpmidiread.cpp
@@ -100,7 +100,8 @@ int CSMFReader::eventReader()//returns 0 if End of Track encountered
 					break;
 					case 0x59://Key signature
 						assert(len==2);
-						p1=(str[0]&0xffu)<<8u|(str[1]&0xffu);
+						if(len>=2)
+						p1=(str[0]&0xffu)<<8u|(str[1]&0xffu);else p1=0;
 						curTrack->appendEvent(SEvent(curid,curt,type,metatype,p1));
 					break;
 					case 0x01:case 0x02:case 0x03:
-- 
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