32 lines
1.0 KiB
C
32 lines
1.0 KiB
C
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/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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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; either version 2 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PCM_PRNG_H
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#define PCM_PRNG_H
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/**
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* A very simple linear congruential PRNG. It's good enough for PCM
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* dithering.
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*/
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static unsigned long prng(unsigned long state)
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{
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return (state * 0x0019660dL + 0x3c6ef35fL) & 0xffffffffL;
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}
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#endif
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