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45 lines
2.0 KiB
C++
45 lines
2.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 Edouard Griffiths, F4EXB. //
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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 as version 3 of the License, or //
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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 V3 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, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef DSDPLUS_DESCRAMBLE_H_
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#define DSDPLUS_DESCRAMBLE_H_
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namespace DSDplus
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{
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class Descramble
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{
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public:
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// Descramble();
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// ~Descramble();
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static void scramble (int * in,int * out);
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static void deinterleave (int * in, int * out);
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static int FECdecoder (int * in, int * out);
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private:
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static int traceBack (int * out, int * m_pathMemory0, int * m_pathMemory1, int * m_pathMemory2, int * m_pathMemory3);
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static void viterbiDecode (int n, int *data, int *m_pathMemory0, int *m_pathMemory1, int *m_pathMemory2, int *m_pathMemory3, int *m_pathMetric);
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static const int SCRAMBLER_TABLE_BITS_LENGTH=720;
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static const int SCRAMBLER_TABLE_BITS[];
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};
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} // namespace DSDplus
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#endif /* DSDPLUS_DESCRAMBLE_H_ */
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