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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_MPEGPROPERTIES_H
#define TAGLIB_MPEGPROPERTIES_H
#include "taglib_export.h"
#include "audioproperties.h"
#include "mpegheader.h"
namespace TagLib {
namespace MPEG {
class File;
class XingHeader;
//! An implementation of audio property reading for MP3
/*!
* This reads the data from an MPEG Layer III stream found in the
* AudioProperties API.
*/
class TAGLIB_EXPORT Properties : public AudioProperties
{
public:
/*!
* Create an instance of MPEG::Properties with the data read from the
* MPEG::File \a file.
*/
Properties(File *file, ReadStyle style = Average);
/*!
* Destroys this MPEG Properties instance.
*/
virtual ~Properties();
// Reimplementations.
virtual int length() const;
virtual int bitrate() const;
virtual int sampleRate() const;
virtual int channels() const;
/*!
* Returns a pointer to the XingHeader if one exists or null if no
* XingHeader was found.
*/
const XingHeader *xingHeader() const;
/*!
* Returns the MPEG Version of the file.
*/
Header::Version version() const;
/*!
* Returns the layer version. This will be between the values 1-3.
*/
int layer() const;
/*!
* Returns true if the MPEG protection bit is enabled.
*/
bool protectionEnabled() const;
/*!
* Returns the channel mode for this frame.
*/
Header::ChannelMode channelMode() const;
/*!
* Returns true if the copyrighted bit is set.
*/
bool isCopyrighted() const;
/*!
* Returns true if the "original" bit is set.
*/
bool isOriginal() const;
private:
Properties(const Properties &);
Properties &operator=(const Properties &);
void read();
class PropertiesPrivate;
PropertiesPrivate *d;
};
}
}
#endif
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