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44 lines
1.9 KiB
C++
44 lines
1.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2021 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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// (at your option) any later version. //
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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 PLUGINS_CHANNELTX_MODNFM_NFMMODDCS_H_
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#define PLUGINS_CHANNELTX_MODNFM_NFMMODDCS_H_
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class NFMModDCS
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{
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public:
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NFMModDCS();
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~NFMModDCS();
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void reset();
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void setDCS(int code);
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void setPositive(bool positive);
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void setSampleRate(int sampleRate);
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int next(); //!< +1/-1 sample
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private:
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int m_shift; //!< current frequency shift: -1 or 1
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int m_dcsWord[23]; //!< current DCS word in transmit order including parity and filler 11 + 3 + 9
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float m_step;
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bool m_positive;
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float m_bitPerStep;
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static const float m_codeRate;
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};
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#endif // PLUGINS_CHANNELTX_MODNFM_NFMMODDCS_H_
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