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sdrangel/plugins/channelrx/demodchirpchat/chirpchatdemoddecoder.h

69 lines
3.7 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2020 Edouard Griffiths, F4EXB //
// //
// 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 //
// (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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_CHIRPCHATDEMODDECODER_H
#define INCLUDE_CHIRPCHATDEMODDECODER_H
#include <vector>
#include "chirpchatdemodsettings.h"
class ChirpChatDemodDecoder
{
public:
ChirpChatDemodDecoder();
~ChirpChatDemodDecoder();
void setCodingScheme(ChirpChatDemodSettings::CodingScheme codingScheme) { m_codingScheme = codingScheme; }
void setNbSymbolBits(unsigned int spreadFactor, unsigned int deBits);
void setLoRaParityBits(unsigned int parityBits) { m_nbParityBits = parityBits; }
void setLoRaHasHeader(bool hasHeader) { m_hasHeader = hasHeader; }
void setLoRaHasCRC(bool hasCRC) { m_hasCRC = hasCRC; }
void setLoRaPacketLength(unsigned int packetLength) { m_packetLength = packetLength; }
void decodeSymbols(const std::vector<unsigned short>& symbols, QString& str); //!< For ASCII and TTY
void decodeSymbols(const std::vector<unsigned short>& symbols, QByteArray& bytes); //!< For raw bytes (original LoRa)
unsigned int getNbParityBits() const { return m_nbParityBits; }
unsigned int getPacketLength() const { return m_packetLength; }
bool getHasCRC() const { return m_hasCRC; }
unsigned int getNbSymbols() const { return m_nbSymbols; }
unsigned int getNbCodewords() const { return m_nbCodewords; }
bool getEarlyEOM() const { return m_earlyEOM; }
int getHeaderParityStatus() const { return m_headerParityStatus; }
bool getHeaderCRCStatus() const { return m_headerCRCStatus; }
int getPayloadParityStatus() const { return m_payloadParityStatus; }
bool getPayloadCRCStatus() const { return m_payloadCRCStatus; }
private:
ChirpChatDemodSettings::CodingScheme m_codingScheme;
unsigned int m_spreadFactor;
unsigned int m_deBits;
unsigned int m_nbSymbolBits;
// LoRa attributes
unsigned int m_nbParityBits; //!< 1 to 4 Hamming FEC bits for 4 payload bits
bool m_hasCRC;
bool m_hasHeader;
unsigned int m_packetLength;
unsigned int m_nbSymbols; //!< Number of encoded symbols: this is only dependent of nbSymbolBits, nbParityBits, packetLength, hasHeader and hasCRC
unsigned int m_nbCodewords; //!< Number of encoded codewords: this is only dependent of nbSymbolBits, nbParityBits, packetLength, hasHeader and hasCRC
bool m_earlyEOM;
int m_headerParityStatus;
bool m_headerCRCStatus;
int m_payloadParityStatus;
bool m_payloadCRCStatus;
};
#endif // INCLUDE_CHIRPCHATDEMODDECODER_H