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mp4file.h
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mp4file.h
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/***************************************************************************
copyright : (C) 2002, 2003, 2006 by Jochen Issing
email : jochen.issing@isign-softart.de
***************************************************************************/
/***************************************************************************
* 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 *
***************************************************************************/
/***************************************************************************
copyright : (C) 2002, 2003 by Jochen Issing
email : jochen.issing@isign-softart.de
***************************************************************************/
/***************************************************************************
* 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 02110-1301 *
* USA *
***************************************************************************/
#ifndef TAGLIB_MP4FILE_H
#define TAGLIB_MP4FILE_H
#include <tfile.h>
#include <audioproperties.h>
#include "mp4fourcc.h"
namespace TagLib {
typedef unsigned long long ulonglong;
class Tag;
namespace MP4
{
class Mp4TagsProxy;
class Mp4PropsProxy;
//! An implementation of TagLib::File with mp4 itunes specific methods
/*!
* This implements and provides an interface for mp4 itunes files to the
* TagLib::Tag and TagLib::AudioProperties interfaces by way of implementing
* the abstract TagLib::File API as well as providing some additional
* information specific to mp4 itunes files. (TODO)
*/
class File : public TagLib::File
{
public:
/*!
* Contructs an mp4 itunes file from \a file. If \a readProperties is true the
* file's audio properties will also be read using \a propertiesStyle. If
* false, \a propertiesStyle is ignored.
*/
explicit File(const char *file, bool readProperties = true,
TagLib::AudioProperties::ReadStyle propertiesStyle = TagLib::AudioProperties::Average);
/*!
* Destroys this instance of the File.
*/
virtual ~File();
/*!
* Returns the Tag for this file. This will be an APE tag, an ID3v1 tag
* or a combination of the two.
*/
virtual TagLib::Tag *tag() const;
/*!
* Returns the mp4 itunes::Properties for this file. If no audio properties
* were read then this will return a null pointer.
*/
virtual AudioProperties *audioProperties() const;
/*!
* Saves the file.
*/
virtual bool save();
/*!
* This will remove all tags.
*
* \note This will also invalidate pointers to the tags
* as their memory will be freed.
* \note In order to make the removal permanent save() still needs to be called
*/
void remove();
/*!
* Helper function for parsing the MP4 file - reads the size and type of the next box.
* Returns true if read succeeded - not at EOF
*/
bool readSizeAndType( TagLib::uint& size, MP4::Fourcc& fourcc );
/*!
* Helper function to read the length of an descriptor in systems manner
*/
TagLib::uint readSystemsLen();
/*!
* Helper function for reading an unsigned int out of the file (big endian method)
*/
bool readInt( TagLib::uint& toRead );
/*!
* Helper function for reading an unsigned short out of the file (big endian method)
*/
bool readShort( TagLib::uint& toRead );
/*!
* Helper function for reading an unsigned long long (64bit) out of the file (big endian method)
*/
bool readLongLong( TagLib::ulonglong& toRead );
/*!
* Helper function to read a fourcc code
*/
bool readFourcc( TagLib::MP4::Fourcc& fourcc );
/*!
* Function to get the tags proxy for registration of the tags boxes.
* The proxy provides direct access to the data boxes of the certain tags - normally
* covered by several levels of subboxes
*/
Mp4TagsProxy* tagProxy() const;
/*!
* Function to get the properties proxy for registration of the properties boxes.
* The proxy provides direct access to the needed boxes describing audio properties.
*/
Mp4PropsProxy* propProxy() const;
private:
File(const File &);
File &operator=(const File &);
class FilePrivate;
FilePrivate * const d;
};
} // namespace MP4
} // namespace TagLib
#endif // TAGLIB_MP4FILE_H