/////////////////////////////////////////////////////////////////////////////////// // Copyright (C) 2018 Edouard Griffiths, F4EXB. // // // // SDRdaemon sink channel (Rx) data block // // // // SDRdaemon is a detached SDR front end that handles the interface with a // // physical device and sends or receives the I/Q samples stream to or from a // // SDRangel instance via UDP. It is controlled via a Web REST API. // // // // 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 as version 3 of the License, or // // // // 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 V3 for more details. // // // // You should have received a copy of the GNU General Public License // // along with this program. If not, see . // /////////////////////////////////////////////////////////////////////////////////// #ifndef SDRDAEMON_CHANNEL_SDRDAEMONDATABLOCK_H_ #define SDRDAEMON_CHANNEL_SDRDAEMONDATABLOCK_H_ #include #include #include #include #include "dsp/dsptypes.h" #define UDPSINKFEC_UDPSIZE 512 #define UDPSINKFEC_NBORIGINALBLOCKS 128 //#define UDPSINKFEC_NBTXBLOCKS 8 #pragma pack(push, 1) struct SDRDaemonMetaDataFEC { uint32_t m_centerFrequency; //!< 4 center frequency in kHz uint32_t m_sampleRate; //!< 8 sample rate in Hz uint8_t m_sampleBytes; //!< 9 4 LSB: number of bytes per sample (2 or 4) uint8_t m_sampleBits; //!< 10 number of effective bits per sample (deprecated) uint8_t m_nbOriginalBlocks; //!< 11 number of blocks with original (protected) data uint8_t m_nbFECBlocks; //!< 12 number of blocks carrying FEC uint32_t m_tv_sec; //!< 16 seconds of timestamp at start time of super-frame processing uint32_t m_tv_usec; //!< 20 microseconds of timestamp at start time of super-frame processing uint32_t m_crc32; //!< 24 CRC32 of the above bool operator==(const SDRDaemonMetaDataFEC& rhs) { return (memcmp((const void *) this, (const void *) &rhs, 12) == 0); // Only the 12 first bytes are relevant } void init() { m_centerFrequency = 0; m_sampleRate = 0; m_sampleBytes = 0; m_sampleBits = 0; m_nbOriginalBlocks = 0; m_nbFECBlocks = 0; m_tv_sec = 0; m_tv_usec = 0; m_crc32 = 0; } }; struct SDRDaemonHeader { uint16_t m_frameIndex; uint8_t m_blockIndex; uint8_t m_sampleBytes; //!< number of bytes per sample (2 or 4) for this block uint8_t m_sampleBits; //!< number of bits per sample uint8_t m_filler; uint16_t m_filler2; void init() { m_frameIndex = 0; m_blockIndex = 0; m_sampleBytes = 2; m_sampleBits = 16; m_filler = 0; m_filler2 = 0; } }; static const int SDRDaemonUdpSize = UDPSINKFEC_UDPSIZE; static const int SDRDaemonNbOrginalBlocks = UDPSINKFEC_NBORIGINALBLOCKS; static const int SDRDaemonNbBytesPerBlock = UDPSINKFEC_UDPSIZE - sizeof(SDRDaemonHeader); struct SDRDaemonProtectedBlock { uint8_t buf[SDRDaemonNbBytesPerBlock]; void init() { std::fill(buf, buf+SDRDaemonNbBytesPerBlock, 0); } }; struct SDRDaemonSuperBlock { SDRDaemonHeader m_header; SDRDaemonProtectedBlock m_protectedBlock; void init() { m_header.init(); m_protectedBlock.init(); } }; #pragma pack(pop) struct SDRDaemonTxControlBlock { bool m_complete; bool m_processed; uint16_t m_frameIndex; int m_nbBlocksFEC; int m_txDelay; QString m_dataAddress; uint16_t m_dataPort; SDRDaemonTxControlBlock() { m_complete = false; m_processed = false; m_frameIndex = 0; m_nbBlocksFEC = 0; m_txDelay = 100; m_dataAddress = "127.0.0.1"; m_dataPort = 9090; } }; struct SDRDaemonRxControlBlock { int m_blockCount; //!< number of blocks received for this frame int m_originalCount; //!< number of original blocks received int m_recoveryCount; //!< number of recovery blocks received bool m_metaRetrieved; //!< true if meta data (block zero) was retrieved int m_frameIndex; //!< this frame index or -1 if unset SDRDaemonRxControlBlock() { m_blockCount = 0; m_originalCount = 0; m_recoveryCount = 0; m_metaRetrieved = false; m_frameIndex = -1; } }; class SDRDaemonDataBlock { public: SDRDaemonDataBlock() { m_superBlocks = new SDRDaemonSuperBlock[256]; } ~SDRDaemonDataBlock() { delete[] m_superBlocks; } SDRDaemonTxControlBlock m_txControlBlock; SDRDaemonRxControlBlock m_rxControlBlock; SDRDaemonSuperBlock *m_superBlocks; }; #endif /* SDRDAEMON_CHANNEL_SDRDAEMONDATABLOCK_H_ */