2009-02-09 21:15:56 +00:00
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//GiGaHeRz's SPU2 Driver
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//Copyright (c) 2003-2008, David Quintana <gigaherz@gmail.com>
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//
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//This library is free software; you can redistribute it and/or
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//modify it under the terms of the GNU Lesser General Public
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//License as published by the Free Software Foundation; either
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//version 2.1 of the License, or (at your option) any later version.
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//
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//This library 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 GNU
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//Lesser General Public License for more details.
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//
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//You should have received a copy of the GNU Lesser General Public
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//License along with this library; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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#pragma once
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typedef struct IIR_data
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{
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double coef[9];
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double d[4];
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} LPF_data;
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void LPF_init(LPF_data*lpf,double freq, double srate);
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double LPF(LPF_data* lpf, double in);
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