From 5411127274a3924fffdf7e4f40ee063d0bd73350 Mon Sep 17 00:00:00 2001
From: trialuser02 <trialuser02@90c681e8-e032-0410-971d-27865f9a5e38>
Date: Wed, 9 Sep 2020 18:31:53 +0000
Subject: fixed xing header parsing

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@9492 90c681e8-e032-0410-971d-27865f9a5e38
---
 src/plugins/Input/mpeg/decoder_mad.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/plugins/Input/mpeg/decoder_mad.cpp b/src/plugins/Input/mpeg/decoder_mad.cpp
index 7f3ca4f93..b19389a82 100644
--- a/src/plugins/Input/mpeg/decoder_mad.cpp
+++ b/src/plugins/Input/mpeg/decoder_mad.cpp
@@ -127,6 +127,7 @@ bool DecoderMAD::findXingHeader(struct mad_bitptr ptr, unsigned int bitlen)
     if (bitlen < 64)
         return false;
 
+    struct mad_bitptr start = ptr;
     quint32 xing_magic = mad_bit_read(&ptr, 32);
     bitlen -= 32;
 
@@ -142,12 +143,13 @@ bool DecoderMAD::findXingHeader(struct mad_bitptr ptr, unsigned int bitlen)
         if(xing_magic != ((quint64(XING_MAGIC) << 16) & 0xffffffffL) && xing_magic != ((quint64(XING_MAGIC2) << 16) & 0xffffffffL))
             return false;
 
+        ptr = start;
         mad_bit_skip(&ptr, 16);
         bitlen += 16;
     }
 
     m_xing.flags = mad_bit_read(&ptr, 32);
-    bitlen -= 64;
+    bitlen -= 32;
 
     if (m_xing.flags & XING_FRAMES)
     {
-- 
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