Files
MMDVMHost/FMIAXNetwork.h
2024-07-03 13:44:34 +01:00

118 lines
3.3 KiB
C++

/*
* Copyright (C) 2020,2021,2023,2024 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 FMIAXNetwork_H
#define FMIAXNetwork_H
#include "FMNetwork.h"
#include "RingBuffer.h"
#include "UDPSocket.h"
#include "StopWatch.h"
#include "Timer.h"
#include <cstdint>
#include <string>
#if defined(_WIN32) || defined(_WIN64)
#include <wincrypt.h>
#else
#include <md5.h>
#endif
enum IAX_STATUS {
IAXS_DISCONNECTED,
IAXS_CONNECTING,
IAXS_REGISTERING,
IAXS_CONNECTED
};
class CFMIAXNetwork : public IFMNetwork {
public:
CFMIAXNetwork(const std::string& callsign, const std::string& username, const std::string& password, const std::string& node, const std::string& localAddress, unsigned short localPort, const std::string& gatewayAddress, unsigned short gatewayPort, bool debug);
virtual ~CFMIAXNetwork();
virtual bool open();
virtual void enable(bool enabled);
virtual bool writeStart();
virtual bool writeData(const float* data, unsigned int nSamples);
virtual bool writeEnd();
virtual unsigned int readData(float* out, unsigned int nOut);
virtual void reset();
virtual void close();
virtual void clock(unsigned int ms);
private:
std::string m_callsign;
std::string m_username;
std::string m_password;
std::string m_node;
CUDPSocket m_socket;
sockaddr_storage m_addr;
unsigned int m_addrLen;
bool m_debug;
bool m_enabled;
CRingBuffer<unsigned char> m_buffer;
IAX_STATUS m_status;
CTimer m_retryTimer;
CTimer m_pingTimer;
std::string m_seed;
CStopWatch m_timestamp;
unsigned short m_sCallNo;
unsigned short m_dCallNo;
unsigned char m_iSeqNo;
unsigned char m_oSeqNo;
unsigned int m_rxJitter;
unsigned int m_rxLoss;
unsigned int m_rxFrames;
unsigned short m_rxDelay;
unsigned int m_rxDropped;
unsigned int m_rxOOO;
bool m_keyed;
#if defined(_WIN32) || defined(_WIN64)
HCRYPTPROV m_provider;
#endif
bool writeNew(bool retry);
bool writeAuthRep();
bool writeKey(bool key);
bool writePing();
bool writePong(unsigned int ts);
bool writeAck(unsigned int ts);
bool writeLagRq();
bool writeLagRp(unsigned int ts);
bool writeHangup();
bool writeRegReq(bool retry);
bool writeAudio(const short* audio, unsigned int length);
void uLawEncode(const short* audio, unsigned char* buffer, unsigned int length) const;
void uLawDecode(const unsigned char* buffer, short* audio, unsigned int length) const;
bool compareFrame(const unsigned char* buffer, unsigned char type1, unsigned char type2) const;
};
#endif