sdphandler.hxx

Vovida 社区开源的 SIP 协议源码

#ifndef SDP_HANDLER_HXX_
#define SDP_HANDLER_HXX_

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact [e-mail].
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
 * 
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 * 
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */

static const char* const SdpHandler_hxx_Version =
    "$Id: SdpHandler.hxx,v 1.4 2002/03/19 21:40:16 jason Exp $";

#include "SipMsg.hxx"
#include "Data.hxx"
#include "Sptr.hxx"
#include "UaHardwareEvent.hxx"
#include "SipSdp.hxx"
#include "SystemInfo.hxx"


using Vocal::SipMsg;
using Vocal::SipSdp;

void addSdpToMsg( SipMsg& msg, Data rtpRate, int rtpPort );

/// returns true if a valid remote SDP was received, false if not
bool validRemoteSdp ( Sptr<SipSdp> remoteSdp );


/// return the RtpPacketSize of this sdp message
int getRtpPacketSize(SipSdp& sipSdp); // xxx should be const


/// return true if able to set RTP packet size, false if not
void setRtpPacketSize(SipSdp& sipSdp, int packetSize);


void
setHost(SipSdp& sipSdp, Data hostAddr);

void
setStandardSdp(SipSdp& sipSdp, Data hostAddr, int port);

void
setUlaw(SipSdp& sipSdp, int rate);

bool validUlaw(SipSdp& sdp);

void
setupMedia(SipSdp& sipSdp, Data hostAddr, int port);

void
setAvt(SipSdp& sipSdp, int payloadType);

bool checkType(SipSdp& sdp, int& realPayloadType, Data eventName);

void
doAnswerStuff(SipSdp& local, Sptr<SipSdp> remote, Data hostAddr, int port);



void setAudioRequest( struct Vocal::HardwareAudioRequest* request,
                      SipSdp& remoteSdp,
                      SipSdp& localSdp );

void sendRemoteRingback(SipSdp& remoteSdp);

void startAudio( Sptr < SipSdp > localSdp, Sptr < SipSdp > remoteSdp );
    


/* Local Variables: */
/* c-file-style: "stroustrup" */
/* indent-tabs-mode: nil */
/* c-file-offsets: ((access-label . -) (inclass . ++)) */
/* c-basic-offset: 4 */
/* End: */

#endif