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/***************************************************************************
copyright : (C) 2004 by Allan Sandfeld Jensen
email : kde@carewolf.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_MPCPROPERTIES_H
#define TAGLIB_MPCPROPERTIES_H
#include "taglib_export.h"
#include "audioproperties.h"
namespace TagLib {
namespace MPC {
class File;
static const uint HeaderSize = 8*7;
//! An implementation of audio property reading for MPC
/*!
* This reads the data from an MPC stream found in the AudioProperties
* API.
*/
class TAGLIB_EXPORT Properties : public AudioProperties
{
public:
/*!
* Create an instance of MPC::Properties with the data read from the
* ByteVector \a data.
*
* This constructor is deprecated. It only works for MPC version up to 7.
*/
Properties(const ByteVector &data, long streamLength, ReadStyle style = Average);
/*!
* Create an instance of MPC::Properties with the data read directly
* from a MPC::File.
*/
Properties(File *file, long streamLength, ReadStyle style = Average);
/*!
* Destroys this MPC::Properties instance.
*/
virtual ~Properties();
// Reimplementations.
virtual int length() const;
virtual int bitrate() const;
virtual int sampleRate() const;
virtual int channels() const;
/*!
* Returns the version of the bitstream (SV4-SV8)
*/
int mpcVersion() const;
uint totalFrames() const;
uint sampleFrames() const;
/*!
* Returns the track gain as an integer value,
* to convert to dB: trackGain in dB = 64.82 - (trackGain / 256)
*/
int trackGain() const;
/*!
* Returns the track peak as an integer value,
* to convert to dB: trackPeak in dB = trackPeak / 256
* to convert to floating [-1..1]: trackPeak = 10^(trackPeak / 256 / 20)/32768
*/
int trackPeak() const;
/*!
* Returns the album gain as an integer value,
* to convert to dB: albumGain in dB = 64.82 - (albumGain / 256)
*/
int albumGain() const;
/*!
* Returns the album peak as an integer value,
* to convert to dB: albumPeak in dB = albumPeak / 256
* to convert to floating [-1..1]: albumPeak = 10^(albumPeak / 256 / 20)/32768
*/
int albumPeak() const;
private:
Properties(const Properties &);
Properties &operator=(const Properties &);
void readSV7(const ByteVector &data);
void readSV8(File *file);
class PropertiesPrivate;
PropertiesPrivate *d;
};
}
}
#endif