56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/* Copyright (c) 2009-2010 Xiph.Org Foundation
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Written by Jean-Marc Valin */
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/*
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef PLC_H
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#define PLC_H
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#include "arch.h"
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#define LPC_ORDER 24
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void _celt_lpc(celt_word16 *_lpc, const celt_word32 *ac, int p);
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void fir(const celt_word16 *x,
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const celt_word16 *num,
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celt_word16 *y,
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int N,
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int ord,
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celt_word16 *mem);
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void iir(const celt_word32 *x,
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const celt_word16 *den,
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celt_word32 *y,
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int N,
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int ord,
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celt_word16 *mem);
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void _celt_autocorr(const celt_word16 *x, celt_word32 *ac, const celt_word16 *window, int overlap, int lag, int n);
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#endif /* PLC_H */
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