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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., 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/ *
***************************************************************************/
#include "taglib_export.h"
#include "tfile.h"
#include "tbytevectorlist.h"
#ifndef TAGLIB_OGGFILE_H
#define TAGLIB_OGGFILE_H
namespace TagLib {
//! A namespace for the classes used by Ogg-based metadata files
namespace Ogg {
class PageHeader;
//! An implementation of TagLib::File with some helpers for Ogg based formats
/*!
* This is an implementation of Ogg file page and packet rendering and is of
* use to Ogg based formats. While the API is small this handles the
* non-trivial details of breaking up an Ogg stream into packets and makes
* these available (via subclassing) to the codec meta data implementations.
*/
class TAGLIB_EXPORT File : public TagLib::File
{
public:
virtual ~File();
/*!
* Returns the packet contents for the i-th packet (starting from zero)
* in the Ogg bitstream.
*
* \warning The requires reading at least the packet header for every page
* up to the requested page.
*/
ByteVector packet(uint i);
/*!
* Sets the packet with index \a i to the value \a p.
*/
void setPacket(uint i, const ByteVector &p);
/*!
* Returns a pointer to the PageHeader for the first page in the stream or
* null if the page could not be found.
*/
const PageHeader *firstPageHeader();
/*!
* Returns a pointer to the PageHeader for the last page in the stream or
* null if the page could not be found.
*/
const PageHeader *lastPageHeader();
virtual bool save();
protected:
/*!
* Contructs an Ogg 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.
*
* \note This constructor is protected since Ogg::File shouldn't be
* instantiated directly but rather should be used through the codec
* specific subclasses.
*/
File(FileName file);
/*!
* Contructs an Ogg 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.
*
* \note This constructor is protected since Ogg::File shouldn't be
* instantiated directly but rather should be used through the codec
* specific subclasses.
*/
File(IOStream *stream);
private:
File(const File &);
File &operator=(const File &);
/*!
* Reads the next page and updates the internal "current page" pointer.
*/
bool nextPage();
void writePageGroup(const List<int> &group);
class FilePrivate;
FilePrivate *d;
};
}
}
#endif
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