timedstreamhandler.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_OUTPUT_DXR3_TIMEDSTREAMHANDLER_H
#define DXR3PLAYER_OUTPUT_DXR3_TIMEDSTREAMHANDLER_H
//------------------------------------------------------------------------------

#include "sched/Schedulable.h"
#include "sched/FDWaitCondition.h"

#include "util/Reference.h"

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

namespace dxr3 {

class TimedStream;

}

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

namespace dvd { namespace packet {

class PacketQueue;
class TimedDataBlockPacket;

} }

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

namespace output { namespace dxr3 {

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

class Timer;

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

/**
 * Timed stream handler.
 */
class TimedStreamHandler : public sched::Schedulable
{
protected:
    /**
     * The packet queue.
     */
    dvd::packet::PacketQueue& inputQueue;

private:
    /**
     * The timer.
     */
    Timer& timer;

    /**
     * The timed stream object to interface the DXR3 board.
     */
    ::dxr3::TimedStream& timedStream;

    /**
     * The wait condition for the stream.
     */
    sched::FDWritableWaitCondition streamWritable;
    
public:
    /**
     * Construct the timed stream handler.
     */
    TimedStreamHandler(const char* name,
                       Timer& timer, 
                       dvd::packet::PacketQueue& inputQueue, 
                       ::dxr3::TimedStream& timedStream,
                       size_t burstSize = 0);

    /**
     * @see sched::Schedulable::run()
     */
    virtual void run();

    /**
     * Reset the stream handler.
     */
    void reset();

protected:
    /**
     * Write the given timed data block packet.
     */
    void write(Reference<dvd::packet::TimedDataBlockPacket> packet);

    /**
     * Write the given timed data.
     */
    void write(const unsigned char* data, size_t length,
               pts_t pts = INVALID_PTS);
};

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

} /* namespace output::dxr3 */ } /* namespace output */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_OUTPUT_DXR3_TIMEDSTREAMHANDLER_H

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