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87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
/* osctrl.h
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This file is part of a program that implements a Software-Defined Radio.
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Copyright (C) 2014 Warren Pratt, NR0V
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Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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 for more details.
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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, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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The author can be reached by email at
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warren@wpratt.com
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*/
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// This file is part of the implementation of the Overshoot Controller from
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// "Controlled Envelope Single Sideband" by David L. Hershberger, W9GR, in
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// the November/December 2014 issue of QEX.
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#ifndef wdsp_osctrl_h
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#define wdsp_osctrl_h
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#include <vector>
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#include "export.h"
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namespace WDSP {
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class TXA;
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class WDSP_API OSCTRL
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{
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public:
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int run; // 1 to run; 0 otherwise
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int size; // buffer size
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float *inbuff; // input buffer
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float *outbuff; // output buffer
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int rate; // sample rate
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double osgain; // gain applied to overshoot "clippings"
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double bw; // bandwidth
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int pn; // "peak stretcher" window, samples
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int dl_len; // delay line length, samples
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std::vector<double> dl; // delay line for complex samples
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std::vector<double> dlenv; // delay line for envelope values
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int in_idx; // input index for dl
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int out_idx; // output index for dl
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double max_env; // maximum env value in env delay line
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double env_out;
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OSCTRL(
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int run,
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int size,
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float* inbuff,
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float* outbuff,
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int rate,
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double osgain
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);
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OSCTRL(const OSCTRL&) = delete;
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OSCTRL& operator=(const OSCTRL& other) = delete;
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~OSCTRL() = default;
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void flush();
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void execute();
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void setBuffers(float* in, float* out);
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void setSamplerate(int rate);
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void setSize(int size);
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private:
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void calc();
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};
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} // namespace WDSP
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#endif
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