1 files changed, 63 insertions, 0 deletions
diff --git a/libs/taglib/taglib/mpeg/id3v2/id3v2synchdata.cpp b/libs/taglib/taglib/mpeg/id3v2/id3v2synchdata.cpp
new file mode 100644
index 0000000000..17503ba543
--- /dev/null
+++ b/libs/taglib/taglib/mpeg/id3v2/id3v2synchdata.cpp
@@ -0,0 +1,63 @@
+/***************************************************************************
+    copyright            : (C) 2002 - 2008 by Scott Wheeler
+    email                : wheeler@kde.org
+ ***************************************************************************/
+
+/***************************************************************************
+ *   This library is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU Lesser General Public License version   *
+ *   2.1 as published by the Free Software Foundation.                     *
+ *                                                                         *
+ *   This library is distributed in the hope that it will be useful, but   *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
+ *   Lesser General Public License for more details.                       *
+ *                                                                         *
+ *   You should have received a copy of the GNU Lesser General Public      *
+ *   License along with this library; if not, write to the Free Software   *
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+ *   USA                                                                   *
+ *                                                                         *
+ *   Alternatively, this file is available under the Mozilla Public        *
+ *   License Version 1.1.  You may obtain a copy of the License at         *
+ *   http://www.mozilla.org/MPL/                                           *
+ ***************************************************************************/
+
+#include <iostream>
+
+#include "id3v2synchdata.h"
+
+using namespace TagLib;
+using namespace ID3v2;
+
+TagLib::uint SynchData::toUInt(const ByteVector &data)
+{
+  uint sum = 0;
+  int last = data.size() > 4 ? 3 : data.size() - 1;
+
+  for(int i = 0; i <= last; i++)
+    sum |= (data[i] & 0x7f) << ((last - i) * 7);
+
+  return sum;
+}
+
+ByteVector SynchData::fromUInt(uint value)
+{
+  ByteVector v(4, 0);
+
+  for(int i = 0; i < 4; i++)
+    v[i] = uchar(value >> ((3 - i) * 7) & 0x7f);
+
+  return v;
+}
+
+ByteVector SynchData::decode(const ByteVector &data)
+{
+  ByteVector result = data;
+
+  ByteVector pattern(2, char(0));
+  pattern[0] = '\xFF';
+  pattern[1] = '\x00';
+
+  return result.replace(pattern, '\xFF');
+}