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/***************************************************************************
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/ *
***************************************************************************/
#ifndef TAGLIB_ID3V2SYNCHDATA_H
#define TAGLIB_ID3V2SYNCHDATA_H
#include "tbytevector.h"
#include "taglib.h"
namespace TagLib {
namespace ID3v2 {
//! A few functions for ID3v2 synch safe integer conversion
/*!
* In the ID3v2.4 standard most integer values are encoded as "synch safe"
* integers which are encoded in such a way that they will not give false
* MPEG syncs and confuse MPEG decoders. This namespace provides some
* methods for converting to and from these values to ByteVectors for
* things rendering and parsing ID3v2 data.
*/
namespace SynchData
{
/*!
* This returns the unsigned integer value of \a data where \a data is a
* ByteVector that contains a \e synchsafe integer (Structure,
* <a href="id3v2-structure.html#6.2">6.2</a>). The default \a length of
* 4 is used if another value is not specified.
*/
TAGLIB_EXPORT uint toUInt(const ByteVector &data);
/*!
* Returns a 4 byte (32 bit) synchsafe integer based on \a value.
*/
TAGLIB_EXPORT ByteVector fromUInt(uint value);
/*!
* Convert the data from unsynchronized data to its original format.
*/
TAGLIB_EXPORT ByteVector decode(const ByteVector &input);
}
}
}
#endif
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