readersectorreference.h

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2003 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef DXR3PLAYER_DVD_READER_READERSECTORREFERENCE_H
#define DXR3PLAYER_DVD_READER_READERSECTORREFERENCE_H
//------------------------------------------------------------------------------

#include "dvd/reader/SectorProxy.h"

#include "util/Reference.h"

//------------------------------------------------------------------------------

namespace dvd { namespace reader {

//------------------------------------------------------------------------------

/**
 * Reference to a sector in the buffer.
 */
class ReaderSectorReference
{
private:
    /**
     * The actual reference.
     */
    Reference<SectorProxy> proxy;

    /**
     * Construct the sector reference.
     */
    ReaderSectorReference(SectorProxy* proxy);
    
public:
    /**
     * Construct an empty reader sector reference.
     */
    ReaderSectorReference();

    /**
     * Reset the reference.
     */
    void reset();

    /**
     * Check if the sector reference is valid or not.
     */
    bool isValid() const;

    /**
     * Get the sector.
     */
    const dvd::demux::Sector& getSector() const;

    friend class Buffer;
};

//------------------------------------------------------------------------------
// Inline definitions
//------------------------------------------------------------------------------

inline ReaderSectorReference::
ReaderSectorReference(SectorProxy* proxy) :
    proxy(proxy)
{
}    

//------------------------------------------------------------------------------

inline ReaderSectorReference::ReaderSectorReference()
{
}

//------------------------------------------------------------------------------

inline void ReaderSectorReference::reset()
{
    proxy = 0;
}

//------------------------------------------------------------------------------

inline bool ReaderSectorReference::isValid() const
{
    return proxy.isValid();
}

//------------------------------------------------------------------------------

inline const dvd::demux::Sector& ReaderSectorReference::getSector() const
{
    return proxy->getSector();
}

//------------------------------------------------------------------------------

} /* namespace dvd::reader */ } /* namespace dvd */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_DVD_READER_READERSECTORREFERENCE_H

// Local variables:
// mode: c++
// End: