44 lines
1.8 KiB
C++
44 lines
1.8 KiB
C++
/*
|
|
* Copyright (C) 2016,2018 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; version 2 of the License.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef P25Trellis_H
|
|
#define P25Trellis_H
|
|
|
|
class CP25Trellis {
|
|
public:
|
|
CP25Trellis();
|
|
~CP25Trellis();
|
|
|
|
bool decode34(const unsigned char* data, unsigned char* payload);
|
|
void encode34(const unsigned char* payload, unsigned char* data);
|
|
|
|
bool decode12(const unsigned char* data, unsigned char* payload);
|
|
void encode12(const unsigned char* payload, unsigned char* data);
|
|
|
|
private:
|
|
void deinterleave(const unsigned char* in, signed char* dibits) const;
|
|
void interleave(const signed char* dibits, unsigned char* out) const;
|
|
void dibitsToPoints(const signed char* dibits, unsigned char* points) const;
|
|
void pointsToDibits(const unsigned char* points, signed char* dibits) const;
|
|
void bitsToTribits(const unsigned char* payload, unsigned char* tribits) const;
|
|
void bitsToDibits(const unsigned char* payload, unsigned char* dibits) const;
|
|
void tribitsToBits(const unsigned char* tribits, unsigned char* payload) const;
|
|
void dibitsToBits(const unsigned char* dibits, unsigned char* payload) const;
|
|
bool fixCode34(unsigned char* points, unsigned int failPos, unsigned char* payload) const;
|
|
unsigned int checkCode34(const unsigned char* points, unsigned char* tribits) const;
|
|
bool fixCode12(unsigned char* points, unsigned int failPos, unsigned char* payload) const;
|
|
unsigned int checkCode12(const unsigned char* points, unsigned char* dibits) const;
|
|
};
|
|
|
|
#endif
|