iax2medstrm.h

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/*
 *
 * Inter Asterisk Exchange 2
 * 
 * Open Phone Abstraction Library (OPAL)
 *
 * Extension of the Opal Media stream, where the media from the IAX2 side is
 * linked to the OPAL 
 *
 * Copyright (c) 2005 Indranet Technologies Ltd.
 *
 * 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 Open Phone Abstraction Library.
 *
 * The Initial Developer of the Original Code is Indranet Technologies Ltd.
 *
 * The author of this code is Derek J Smithies
 *
 * $Log: iax2medstrm.h,v $
 * Revision 1.3  2007/03/29 05:15:48  csoutheren
 * Pass OpalConnection to OpalMediaSream constructor
 * Add ID to OpalMediaStreams so that transcoders can match incoming and outgoing codecs
 *
 * Revision 1.2  2007/01/11 03:02:15  dereksmithies
 * Remove the previous audio buffering code, and switch to using the jitter
 * buffer provided in Opal. Reduce the verbosity of the log mesasges.
 *
 * Revision 1.1  2005/07/30 07:01:32  csoutheren
 * Added implementation of IAX2 (Inter Asterisk Exchange 2) protocol
 * Thanks to Derek Smithies of Indranet Technologies Ltd. for
 * writing and contributing this code
 *
 *
 *
 */

#ifndef __OPAL_IAX2_MEDIASTRM_H
#define __OPAL_IAX2_MEDIASTRM_H

#ifdef P_USE_PRAGMA
#pragma interface
#endif


#include <opal/buildopts.h>
#include <opal/mediafmt.h>
#include <iax2/iax2con.h>
#include <iax2/iax2jitter.h>

class RTP_Session;
class OpalMediaPatch;
class OpalLine;


class OpalIAX2MediaStream : public OpalMediaStream
{
  PCLASSINFO(OpalIAX2MediaStream, OpalMediaStream);
    OpalIAX2MediaStream(
                   IAX2Connection &con,                 
                   const OpalMediaFormat & mediaFormat, 
                   unsigned sessionID,                  
                   BOOL isSource                        
                   );
 
 public:
    virtual BOOL Open();
 
    virtual BOOL Start();

    virtual BOOL Close();
 
    virtual BOOL ReadPacket(
      RTP_DataFrame & packet 
    );

    virtual BOOL WriteData(
      const BYTE * data,   
      PINDEX length,       
      PINDEX & written     
    );

    virtual BOOL IsSynchronous() const;

  protected:
    IAX2Connection & connection;

    PBYTEArray pendingData;
};

#endif  //__OPAL_IAX2_MEDIASTRM_H

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