filemembers.h

这是一个OPENH323中的MCU程序

/*
 * filemembers.h
 *
 * Various file-based listeners for OpenMCU
 *
 * Copyright (C) 2003 Post Increment
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Portable Windows Library.
 *
 * The Initial Developer of the Original Code is Post Increment
 *
 * Portions of ths code were written by by Post Increment (http://www.postincrement.com) 
 * with the assistance of funding from Stonevoice, slc. http://www.stonevoice.com
 *
 * Portions of this code were written by Post Increment (http://www.postincrement.com) 
 * with the assistance of funding from Citron Networks (http://www.citron.com.tw)
 *
 * Contributor(s): Derek J Smithies ([e-mail])
 *                 Craig Southeren ([e-mail])
 *
 * $Log: filemembers.h,v $
 * Revision 1.1  2007/10/17 19:44:30  shorne
 * Initial Commit
 *
 * Revision 2.6  2007/01/11 03:47:27  csoutheren
 * Add missing <deque>
 *
 * Revision 2.5  2006/08/02 06:24:53  csoutheren
 * Add provision for recording input audio
 *
 * Revision 2.4  2006/06/21 06:11:36  csoutheren
 * Fixes for latest pwlib
 *
 * Revision 2.3  2006/06/09 04:39:59  csoutheren
 * Migrated VideoBranch to main trunk
 *
 * Revision 2.2.2.6  2006/05/31 08:48:02  csoutheren
 * Fixed crash on second call when entry/exit files do not exist
 * Fix crash when Cisco HOLD used. Thanks to Christian Bongiovanni of Stonevoice
 *
 * Revision 2.2.2.5  2006/04/06 01:11:16  csoutheren
 * Latest sources include
 *   - premedia blanking and optional image display
 *   - ablity to defer conference join for authentication if required
 *   - more bulletproofing on conference join
 *   - new video copy/fill functions
 *
 * Revision 1.1  2006/03/31 07:36:12  craigs
 * New version with PINs and premedia blanking
 *
 * Revision 2.2.2.3  2006/03/28 05:13:38  csoutheren
 * Normalised file headers
 * Fixed problem with QCIF video
 * Seperated H.323 and MCU process functions into seperate files
 *
 * Revision 2.2.2.2  2006/03/14 08:02:50  csoutheren
 * More implemenrtation of video
 * Video mixing infrastructure implemented but not fully working
 *
 * Revision 2.2.2.1  2006/03/06 05:45:30  csoutheren
 * Start of implementation for video. Still in progress
 *
 * Revision 2.2  2006/02/03 04:40:00  csoutheren
 * Extended logging messages
 *
 * Revision 2.1  2004/05/26 06:54:31  csoutheren
 * Changed to be a PHTTPServiceProcess
 * Added ability to play WAV files on member entry and exit
 * Added additional documentation on all classes
 * Preparation for re-introducing video
 *
 */

#ifndef _OpenMCU_FILEMEMBERS_H
#define _OpenMCU_FILEMEMBERS_H

#include "config.h"

#include <ptlib/sound.h>
#include <opalwavfile.h>
#include "conference.h"

#include <deque>


class ConferenceSoundCardMember : public ConferenceMember
{
  PCLASSINFO(ConferenceSoundCardMember, ConferenceMember);
  public:
    ConferenceSoundCardMember(Conference * _conference);
    ~ConferenceSoundCardMember();

    void Unlisten();

    virtual ConferenceConnection * CreateConnection()
    { return new ConferenceConnection(this); }

    virtual PString GetName() const
    { return "sound card listener"; }

    virtual BOOL IsVisible() const
    { return FALSE; }

    void OnReceivedUserInputIndication(const PString & str)
    { cout << "Received user input indication " << str << endl; }

    PDECLARE_NOTIFIER(PThread, ConferenceSoundCardMember, Thread);

  protected:
    BOOL running;
    PSoundChannel soundDevice;
    PThread * thread;
};

class ConferenceFileMember : public ConferenceMember
{
  PCLASSINFO(ConferenceFileMember, ConferenceMember);
  public:
    ConferenceFileMember(Conference * conference, const PFilePath & _fn, PFile::OpenMode mode);

    typedef std::deque<PFilePath> FilenameList;
    ConferenceFileMember(Conference * conference, const FilenameList & _fns, PFile::OpenMode mode);

    ~ConferenceFileMember();

    void Unlisten();

    virtual ConferenceConnection * CreateConnection()
    { return new ConferenceConnection(this); }

    virtual PString GetName() const
    { return PString(mode == PFile::ReadOnly ? "file player" : "file recorder") & currentFilename; }

    virtual BOOL IsVisible() const
    { return FALSE; }

    void OnReceivedUserInputIndication(const PString & str)
    { cout << "Received user input indication " << str << endl; }

    PDECLARE_NOTIFIER(PThread, ConferenceFileMember, ReadThread);
    PDECLARE_NOTIFIER(PThread, ConferenceFileMember, WriteThread);

  protected:
    void Construct();
    BOOL QueueNext();

    FilenameList filenames;
    PFilePath currentFilename;
    PFile::OpenMode mode;

    OpalWAVFile file;
    BOOL running;
    PThread * thread;
};

class ConferenceFilePlayer : public ConferenceFileMember
{
  PCLASSINFO(ConferenceFilePlayer, ConferenceFileMember);
  public:
    ConferenceFilePlayer();

    void Unlisten();

    PDECLARE_NOTIFIER(PThread, ConferenceFilePlayer, Thread);
};

#endif