RtpTransmitter.hxx
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- #ifndef RTPTRANSMITTER_HXX
- #define RTPTRANSMITTER_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 vocal@vovida.org.
- *
- * 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 $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const RtpTransmitter_hxx_Version =
- "$Id: RtpTransmitter.hxx,v 1.16 2001/05/07 19:12:50 kle Exp $";
- #include <sys/types.h>
- #include <map>
- #include "rtpTypes.h"
- #include "UdpStack.hxx"
- #include "NtpTime.hxx"
- #include "NetworkAddress.h"
- class RtpPacket;
- class RtcpReceiver;
- /// Data structure for RTP Transmitter
- class RtpTransmitter
- {
- public:
- /// constructor using port range
- RtpTransmitter (const char* remoteHost, int remoteMinPort,
- int remoteMaxPort,
- RtpPayloadType apiFormat = rtpPayloadPCMU,
- RtpPayloadType networkFormat = rtpPayloadPCMU,
- RtpReceiver* receivePort = 0);
- /// construtor using specified port
- RtpTransmitter (const char* remoteHost, int remotePort = 5000,
- RtpPayloadType apiFormat = rtpPayloadPCMU,
- RtpPayloadType networkFormat = rtpPayloadPCMU,
- RtpReceiver* receiver = 0);
- /// consturctor init (don't call this function)
- void constructRtpTransmitter (RtpPayloadType apiFormat,
- RtpPayloadType networkFormat);
- ///
- ~RtpTransmitter ();
- /// Creates a packet with transmitter's payload type and SRC number
- RtpPacket* createPacket (int npadSize = 0, int csrc_count = 0);
- ///
- int transmit (RtpPacket* packet, bool eventFlag = false);
- ///
- int transmitRaw (char* buffer, int data_len);
- ///
- RtpSrc getSSRC ()
- {
- return ssrc;
- }
- ///
- int getPacketSent ()
- {
- return packetSent;
- }
- ///
- int getPayloadSent ()
- {
- return payloadSent;
- }
- ///
- RtpSeqNumber getPrevSequence ()
- {
- return prevSequence;
- }
- ///
- RtpTime getPrevRtpTime ()
- {
- return prevRtpTime;
- }
- ///
- void setMarkerOnce()
- {
- markerOnce = true;
- }
- ///
- void setApiFormat (RtpPayloadType type, int no_samples, int packetSize = 0,
- RtpPacket* p = NULL, bool print = true);
- ///
- int getApiPktSampleSize ()
- {
- return api_pktSampleSize;
- }
- ///
- void setApiPktSize (int size)
- {
- api_pktSampleSize = size;
- }
- ///
- void setNetworkFormat (RtpPayloadType type, int no_samples, int packetSize = 0,
- RtpPacket* p = NULL, bool print = true);
- ///
- int getNetworkPktSampleSize ()
- {
- return network_pktSampleSize;
- }
- ///
- void setNetworkPktSize (int size)
- {
- network_pktSampleSize = size;
- }
- /// Port this stack is sending its singal
- int getPort ()
- {
- return myStack->getTxPort();
- }
- /// Socket File Descriptor used for select()
- int getSocketFD ()
- {
- return myStack->getSocketFD();
- }
- /// transmitter error code;
- RtpTransmitterError transmitterError;
- /// get ptr of my UdpStack
- UdpStack* getUdpStack()
- {
- return myStack;
- }
- ///
- NetworkAddress* getRemoteAddr ()
- {
- return &remoteAddr;
- }
- ///
- void setRemoteAddr (const NetworkAddress& theAddr) ;
- private:
- /// outgoing buffer size, including RTP header
- static const int OUT_BUFFER_SIZE = 8192;
- /// local SRC number
- RtpSrc ssrc;
- /// inital NTP time
- NtpTime seedNtpTime;
- /// inital RTP time
- RtpTime seedRtpTime;
- /// RTP time of previous packet
- RtpTime prevRtpTime;
- /// NTP time of previous packet
- NtpTime prevNtpTime;
- /// previous packet's sequence
- RtpSeqNumber prevSequence;
- /// numbers of packet sent
- int packetSent;
- /// total bytes of payload sent
- int payloadSent;
- /// allow RTCP stack to probe for information
- friend class RtcpTransmitter;
- /// allow RTCP stack to probe for information
- friend class RtcpReceiver;
- /// format of payload for stack
- RtpPayloadType apiFormat;
- RtpPayloadType networkFormat;
- /// number of samples per RTP packet on api (typical 160 or 240)
- int api_pktSampleSize;
- int network_pktSampleSize;
- /// number of bytes per sample (typical 1 or 2, used for endian conversion)
- int apiFormat_perSampleSize;
- int networkFormat_perSampleSize;
- /// payload specific sample rate
- int apiFormat_clockRate;
- int networkFormat_clockRate;
- /// payload sizes
- int apiFormat_payloadSize; // api_pktSampleSize*apiFormat_perSampleSize
- int networkFormat_payloadSize; // network_pktSampleSize * networkFormat_perSampleSize
- /// marker once
- bool markerOnce;
- /// my UDP stack
- UdpStack* myStack;
- ///
- bool freeStack;
- /// buffer outgoing rtp pkt to network
- char outBuff[8192];
- int outPos;
- int recPos;
- NetworkAddress remoteAddr;
- };
- #endif // RTPTRANSMITTER_HXX