NXDNClients/NXDNReflector/KenwoodNetwork.h

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/*
* Copyright (C) 2009-2014,2016,2018,2020 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef KenwoodNetwork_H
#define KenwoodNetwork_H
#include "UDPSocket.h"
#include "Timer.h"
#include <cstdint>
#include <string>
#include <random>
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class CKenwoodNetwork {
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public:
CKenwoodNetwork(const std::string& address, bool debug);
~CKenwoodNetwork();
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bool open();
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bool write(const unsigned char* data, unsigned int length);
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unsigned int read(unsigned char* data);
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void close();
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void clock(unsigned int ms);
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private:
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CUDPSocket m_rtpSocket;
CUDPSocket m_rtcpSocket;
sockaddr_storage m_rtpAddr;
unsigned int m_rtpAddrLen;
sockaddr_storage m_rtcpAddr;
unsigned int m_rtcpAddrLen;
bool m_headerSeen;
bool m_seen1;
bool m_seen2;
bool m_seen3;
bool m_seen4;
unsigned char* m_sacch;
uint8_t m_sessionId;
uint16_t m_seqNo;
unsigned int m_ssrc;
bool m_debug;
uint32_t m_startSecs;
uint32_t m_startUSecs;
CTimer m_rtcpTimer;
CTimer m_hangTimer;
unsigned char m_hangType;
unsigned short m_hangSrc;
unsigned short m_hangDst;
std::mt19937 m_random;
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bool processIcomVoiceHeader(const unsigned char* data);
bool processIcomVoiceData(const unsigned char* data);
unsigned int processKenwoodVoiceHeader(unsigned char* data);
unsigned int processKenwoodVoiceData(unsigned char* data);
unsigned int processKenwoodVoiceLateEntry(unsigned char* data);
unsigned int processKenwoodData(unsigned char* data);
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bool writeRTPVoiceHeader(const unsigned char* data);
bool writeRTPVoiceData(const unsigned char* data);
bool writeRTPVoiceTrailer(const unsigned char* data);
bool writeRTCPStart();
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bool writeRTCPPing();
bool writeRTCPHang(unsigned char type, unsigned short src, unsigned short dst);
bool writeRTCPHang();
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unsigned int readRTP(unsigned char* data);
unsigned int readRTCP(unsigned char* data);
unsigned long getTimeStamp() const;
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};
#endif