128 lines
4.4 KiB
C++
128 lines
4.4 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/ *
|
|
***************************************************************************/
|
|
|
|
#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 This requires reading at least the packet header for every page
|
|
* up to the requested page.
|
|
*/
|
|
ByteVector packet(unsigned int i);
|
|
|
|
/*!
|
|
* Sets the packet with index \a i to the value \a p.
|
|
*/
|
|
void setPacket(unsigned int 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:
|
|
/*!
|
|
* Constructs an Ogg file from \a file.
|
|
*
|
|
* \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);
|
|
|
|
/*!
|
|
* Constructs an Ogg file from \a stream.
|
|
*
|
|
* \note This constructor is protected since Ogg::File shouldn't be
|
|
* instantiated directly but rather should be used through the codec
|
|
* specific subclasses.
|
|
*
|
|
* \note TagLib will *not* take ownership of the stream, the caller is
|
|
* responsible for deleting it after the File object.
|
|
*/
|
|
File(IOStream *stream);
|
|
|
|
private:
|
|
File(const File &);
|
|
File &operator=(const File &);
|
|
|
|
/*!
|
|
* Reads the pages from the beginning of the file until enough to compose
|
|
* the requested packet.
|
|
*/
|
|
bool readPages(unsigned int i);
|
|
|
|
/*!
|
|
* Writes the requested packet to the file.
|
|
*/
|
|
void writePacket(unsigned int i, const ByteVector &packet);
|
|
|
|
class FilePrivate;
|
|
FilePrivate *d;
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|