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77 lines
3.1 KiB
77 lines
3.1 KiB
/**
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* Digital Voice Modem - Common Library
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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 / Common Library
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*
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*/
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/*
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* Copyright (C) 2023-2024 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(__FRAME_QUEUE_H__)
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#define __FRAME_QUEUE_H__
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#include "common/Defines.h"
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#include "common/network/RTPHeader.h"
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#include "common/network/RTPFNEHeader.h"
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#include "common/network/RawFrameQueue.h"
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#include <unordered_map>
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namespace network
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{
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// ---------------------------------------------------------------------------
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// Constants
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// ---------------------------------------------------------------------------
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const uint8_t DVM_RTP_PAYLOAD_TYPE = 0x56U;
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const uint8_t DVM_CTRL_RTP_PAYLOAD_TYPE = 0x57U; // these are still RTP, but do not carry stream IDs or sequence data
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// ---------------------------------------------------------------------------
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// Class Declaration
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// Implements the network RTP frame queuing logic.
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// ---------------------------------------------------------------------------
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class HOST_SW_API FrameQueue : public RawFrameQueue {
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public: typedef std::pair<const uint8_t, const uint8_t> OpcodePair;
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public:
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/// <summary>Initializes a new instance of the FrameQueue class.</summary>
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FrameQueue(UDPSocket* socket, uint32_t peerId, bool debug);
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/// <summary>Read message from the received UDP packet.</summary>
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UInt8Array read(int& messageLength, sockaddr_storage& address, uint32_t& addrLen,
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frame::RTPHeader* rtpHeader = nullptr, frame::RTPFNEHeader* fneHeader = nullptr);
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/// <summary>Cache "message" to frame queue.</summary>
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void enqueueMessage(const uint8_t* message, uint32_t length, uint32_t streamId, uint32_t peerId,
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OpcodePair opcode, uint16_t rtpSeq, sockaddr_storage& addr, uint32_t addrLen);
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/// <summary>Cache "message" to frame queue.</summary>
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void enqueueMessage(const uint8_t* message, uint32_t length, uint32_t streamId, uint32_t peerId,
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uint32_t ssrc, OpcodePair opcode, uint16_t rtpSeq, sockaddr_storage& addr, uint32_t addrLen);
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/// <summary>Helper method to clear any tracked stream timestamps.</summary>
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void clearTimestamps();
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private:
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uint32_t m_peerId;
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std::unordered_map<uint32_t, uint32_t> m_streamTimestamps;
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};
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} // namespace network
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#endif // __FRAME_QUEUE_H__
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