playqueue.h

SIP（Session Initiation Protocol）是由IETF定义

#ifndef PLAYQUEUE_H
#define PLAYQUEUE_H

/* ====================================================================
 * The Vovida Software License, Version 1.0 
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 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
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 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
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 * This software consists of voluntary contributions made by Vovida
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static const char* const PlayQueue_h_Version =
    "$Id: PlayQueue.h,v 1.1.2.2 2003/03/03 20:14:37 sprajpat Exp $";

#include "global.h"
#include <string>
#include <queue>
#include <cstdio>
#include <sndfile.h>

/**
  * This Class is used as a queue for media files to play.
  * Wave files get queued and de-queued from this queue.
  */

class PlayQueue
{
    public:

        ///
        PlayQueue();

	///
        virtual ~PlayQueue();

        /** Add to the queue */
        virtual void add(const string & fileName);

        /** Return the data */
        virtual int getData(void *buffer, int size);

        /** Start playing */
        virtual int start();

        /** Stop playing */
        virtual void stop();

	///
	bool isListEmpty() { return m_xFileQueue.empty(); };

    private:  // Private attributes

        /**  */
        std::queue < std::string > m_xFileQueue;

        /**  */
        bool m_bActive;

        /**  */
        SNDFILE *m_iFd;
};

#endif