71 lines
3.0 KiB
C++
71 lines
3.0 KiB
C++
/***************************************************************************
|
|
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., 51 Franklin Street, Fifth Floor, Boston, MA *
|
|
* 02110-1301 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 unsigned int toUInt(const ByteVector &data);
|
|
|
|
/*!
|
|
* Returns a 4 byte (32 bit) synchsafe integer based on \a value.
|
|
*/
|
|
TAGLIB_EXPORT ByteVector fromUInt(unsigned int value);
|
|
|
|
/*!
|
|
* Convert the data from unsynchronized data to its original format.
|
|
*/
|
|
TAGLIB_EXPORT ByteVector decode(const ByteVector &input);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|