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148 lines
4.9 KiB
148 lines
4.9 KiB
/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
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* Copyright (C) 2017-2022 by Bryan Biedenkapp N2PLL
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(__P25_VOICE_PACKET_H__)
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#define __P25_VOICE_PACKET_H__
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#include "Defines.h"
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#include "p25/data/LowSpeedData.h"
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#include "p25/dfsi/LC.h"
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#include "p25/lc/LC.h"
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#include "p25/Control.h"
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#include "p25/Audio.h"
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#include "network/BaseNetwork.h"
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#include <cstdio>
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#include <string>
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namespace p25
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{
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// ---------------------------------------------------------------------------
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// Class Prototypes
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// ---------------------------------------------------------------------------
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class HOST_SW_API TrunkPacket;
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class HOST_SW_API Control;
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// ---------------------------------------------------------------------------
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// Class Declaration
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// This class implements handling logic for P25 voice packets.
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// ---------------------------------------------------------------------------
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class HOST_SW_API VoicePacket {
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public:
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/// <summary>Resets the data states for the RF interface.</summary>
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virtual void resetRF();
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/// <summary>Resets the data states for the network.</summary>
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virtual void resetNet();
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/// <summary>Process a data frame from the RF interface.</summary>
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virtual bool process(uint8_t* data, uint32_t len);
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/// <summary>Process a data frame from the network.</summary>
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virtual bool processNetwork(uint8_t* data, uint32_t len, lc::LC& control, data::LowSpeedData& lsd, uint8_t& duid);
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/// <summary>Helper to write end of frame data.</summary>
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bool writeEndRF();
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protected:
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friend class TrunkPacket;
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friend class Control;
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Control* m_p25;
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network::BaseNetwork* m_network;
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uint32_t m_rfFrames;
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uint32_t m_rfBits;
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uint32_t m_rfErrs;
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uint32_t m_rfUndecodableLC;
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uint32_t m_netFrames;
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uint32_t m_netLost;
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Audio m_audio;
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lc::LC m_rfLC;
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lc::LC m_rfLastHDU;
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lc::LC m_rfLastLDU1;
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lc::LC m_rfLastLDU2;
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lc::LC m_netLC;
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lc::LC m_netLastLDU1;
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data::LowSpeedData m_rfLSD;
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data::LowSpeedData m_netLSD;
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dfsi::LC m_dfsiLC;
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uint8_t* m_netLDU1;
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uint8_t* m_netLDU2;
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uint8_t m_lastDUID;
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uint8_t* m_lastIMBE;
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bool m_hadVoice;
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uint32_t m_lastRejectId;
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uint32_t m_silenceThreshold;
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uint8_t m_vocLDU1Count;
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bool m_verbose;
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bool m_debug;
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/// <summary>Initializes a new instance of the VoicePacket class.</summary>
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VoicePacket(Control* p25, network::BaseNetwork* network, bool debug, bool verbose);
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/// <summary>Finalizes a instance of the VoicePacket class.</summary>
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virtual ~VoicePacket();
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/// <summary>Write data processed from RF to the network.</summary>
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void writeNetworkRF(const uint8_t* data, uint8_t duid);
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/// <summary>Helper to write end of voice frame data.</summary>
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void writeRF_EndOfVoice();
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/// <summary>Helper to write a network P25 TDU packet.</summary>
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virtual void writeNet_TDU();
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/// <summary>Helper to check for an unflushed LDU1 packet.</summary>
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void checkNet_LDU1();
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/// <summary>Helper to write a network P25 LDU1 packet.</summary>
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virtual void writeNet_LDU1();
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/// <summary>Helper to check for an unflushed LDU2 packet.</summary>
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void checkNet_LDU2();
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/// <summary>Helper to write a network P25 LDU1 packet.</summary>
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virtual void writeNet_LDU2();
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/// <summary>Helper to insert IMBE silence frames for missing audio.</summary>
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void insertMissingAudio(uint8_t* data);
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/// <summary>Helper to insert IMBE null frames for missing audio.</summary>
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void insertNullAudio(uint8_t* data);
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};
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} // namespace p25
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#endif // __P25_VOICE_PACKET_H__
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