74 lines
2.2 KiB
C
74 lines
2.2 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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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 _osctrl_h
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#define _osctrl_h
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typedef struct _osctrl
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{
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int run; // 1 to run; 0 otherwise
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int size; // buffer size
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double *inbuff; // input buffer
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double *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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double* dl; // delay line for complex samples
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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, *OSCTRL;
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extern void xosctrl (OSCTRL a);
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extern OSCTRL create_osctrl (
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int run,
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int size,
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double* inbuff,
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double* outbuff,
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int rate,
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double osgain );
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extern void destroy_osctrl (OSCTRL a);
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extern void flush_osctrl (OSCTRL a);
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extern void setBuffers_osctrl (OSCTRL a, double* in, double* out);
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extern void setSamplerate_osctrl (OSCTRL a, int rate);
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extern void setSize_osctrl (OSCTRL a, int size);
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#endif
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