sdrangel/ft8/osd.h

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2.1 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2023 Edouard Griffiths, F4EXB. //
// //
// This is the code from ft8mon: https://github.com/rtmrtmrtmrtm/ft8mon //
// written by Robert Morris, AB1HL //
// reformatted and adapted to Qt and SDRangel context //
// //
// 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 osd_h
#define osd_h
namespace FT8 {
class OSD
{
public:
static const int gen_sys[174][91];
static int check_crc(const int a91[91]);
static void ldpc_encode(int plain[91], int codeword[174]);
static float osd_score(int xplain[91], float ll174[174]);
static int osd_check(const int plain[91]);
static void matmul(int a[91][91], int b[91], int c[91]);
static int osd_decode(float codeword[174], int depth, int out[91], int *out_depth);
};
} // namepsace FT8
#endif // osd_h