demultiplexerqueue.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_DEMUX_DEMULTIPELXERQUEUE_H
#define DXR3PLAYER_DVD_DEMUX_DEMULTIPELXERQUEUE_H
//------------------------------------------------------------------------------

#include "dvd/packet/PacketQueue.h"

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

namespace dvd { namespace demux {

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

/**
 * Demultiplexer queue. 
 */
class DemultiplexerQueue : public dvd::packet::PacketQueue
{
private:
    /**
     * The threshold. After a reset, this many sectors must be filled
     * to be able to begin demultiplexing
     */
    size_t threshold;

    /**
     * Indicate if we are filling up.
     */
    bool filling;

public:
    /**
     * Construct the demultiplexer queue.
     */
    DemultiplexerQueue(size_t capacity);
    
    /**
     * Put the queue into filling mode
     *
     * @see sched::QueueTemplate::reset
     */
    virtual void reset();

    /**
     * @see sched::QueueTemplate::flush
     */
    virtual void flush();

protected:
    /**
     * This implementation checks if we have filled up enough entries
     * to process.
     *
     * @see sched::QueueTemplate::canConsume
     */
    virtual bool canConsume();
};

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

} /* namespace dvd::demux */ } /* namespace dvd */

//------------------------------------------------------------------------------
#endif  /// DXR3PLAYER_DVD_DEMUX_DEMULTIPELXERQUEUE_H

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