h323t38.h

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/*
 * h323t38.h
 *
 * H.323 T.38 logical channel establishment
 *
 * Open H323 Library
 *
 * Copyright (c) 2001 Equivalence Pty. 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 H323 Library.
 *
 * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
 *
 * Contributor(s): ______________________________________.
 */

#ifndef OPAL_T38_H323T38_H
#define OPAL_T38_H323T38_H

#ifdef P_USE_PRAGMA
#pragma interface
#endif

#include <opal_config.h>

#if OPAL_T38_CAPABILITY

#include <h323/h323caps.h>


class H245_T38FaxProfile;



class H323_T38Capability : public H323DataCapability
{
    PCLASSINFO(H323_T38Capability, H323DataCapability);
  public:
    enum TransportMode {
      e_UDP,
      e_DualTCP,
      e_SingleTCP,
      NumTransportModes
    };

    H323_T38Capability(
      TransportMode mode = e_UDP
    );

    Comparison Compare(const PObject & obj) const;

    virtual PObject * Clone() const;

    virtual unsigned GetSubType() const;

    virtual PString GetFormatName() const;

    virtual H323Channel * CreateChannel(
      H323Connection & connection,    
      H323Channel::Directions dir,    
      unsigned sessionID,             
      const H245_H2250LogicalChannelParameters * param
    ) const;

    virtual PBoolean OnSendingPDU(
      H245_DataApplicationCapability & pdu
    ) const;

    virtual PBoolean OnSendingPDU(
      H245_DataMode & pdu  
    ) const;

    virtual PBoolean OnSendingPDU(
      H245_DataProtocolCapability & proto,  
      H245_T38FaxProfile & profile          
    ) const;

    virtual PBoolean OnReceivedPDU(
      const H245_DataApplicationCapability & pdu  
    );

    TransportMode GetTransportMode() const { return mode; }

  protected:
    TransportMode mode;
};


class H323_T38NonStandardCapability : public H323NonStandardDataCapability
{
    PCLASSINFO(H323_T38NonStandardCapability, H323NonStandardDataCapability);
  public:
    H323_T38NonStandardCapability(
      BYTE country = 181,            
      BYTE extension = 0,            
      WORD maufacturer = 18          
    );

    virtual PObject * Clone() const;

    virtual PString GetFormatName() const;

    virtual H323Channel * CreateChannel(
      H323Connection & connection,    
      H323Channel::Directions dir,    
      unsigned sessionID,             
      const H245_H2250LogicalChannelParameters * param
    ) const;
};


#endif //OPAL_T38_CAPABILITY

#endif // OPAL_T38_H323T38_H