mvoicecallengine.h

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/*     -*-C++-*- -*-coding: utf-8-unix;-*-
  Classified Ads is Copyright (c) Antti Järvinen 2015.

  This file is part of Classified Ads.

  Classified Ads is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  Classified Ads 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with Classified Ads; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/

#ifndef VOICECALL_ENG_INTERFACE_H
#define VOICECALL_ENG_INTERFACE_H
#include <QList>
class Hash ; 
class VoiceCall ; 

class MVoiceCallEngine {
public:
    enum CallState {
        Initial,  
        Incoming, 
        Open,     
        Closing,  
        Closed,   
        Error,    
        NoCall    
    };

    class MCallStatusObserver {
    public:
        virtual void callStatusChanged(quint32 aCallId,
                                       CallState aState) = 0 ; 
    } ;
    enum PayloadType {
        Audio=1,  
        Control=2 
    } ; 
    class CallData {
    public:
        quint32 iCallId ; 
        quint32 iSeqNo ; 
        quint32 iTimeStamp ; 
        PayloadType iPayloadType ; 
        QByteArray iPayload ; 
    } ; 
    virtual void installObserver(MCallStatusObserver* aObserver) = 0 ; 

    virtual void removeObserver(MCallStatusObserver* aObserver) = 0 ; 

    virtual void insertCallData(quint32 aCallId,
                                quint32 aSeqNo,
                                PayloadType aPayloadType,
                                const QByteArray& aPayload,
                                Hash& aSendingNode) = 0 ; 

    virtual void insertCallStatusData(const VoiceCall& aCallStatus,
                                      const Hash& aSendingNode) = 0 ;
    virtual QList<quint32> onGoingCalls() const = 0 ; 
    virtual CallState callStatus(quint32 aCallId) const = 0 ; 
    virtual void closeCall(quint32 aCallId) = 0 ; 
    virtual void acceptCall(quint32 aCallId) = 0 ; 
} ; 
#endif