43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/******************************************************************************
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Copyright (C) 2015 by Hugh Bailey <obs.jim@gmail.com>
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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, either version 2 of the License, or
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(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, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include "../util/c99defs.h"
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#include <math.h>
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#ifdef _MSC_VER
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#include <float.h>
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#pragma warning(push)
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#pragma warning(disable : 4056)
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#pragma warning(disable : 4756)
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#endif
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static inline float mul_to_db(const float mul)
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{
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return (mul == 0.0f) ? -INFINITY : (20.0f * log10f(mul));
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}
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static inline float db_to_mul(const float db)
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{
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return isfinite((double)db) ? powf(10.0f, db / 20.0f) : 0.0f;
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}
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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