1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libopus/celt/celt_lpc.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,54 @@
1.4 +/* Copyright (c) 2009-2010 Xiph.Org Foundation
1.5 + Written by Jean-Marc Valin */
1.6 +/*
1.7 + Redistribution and use in source and binary forms, with or without
1.8 + modification, are permitted provided that the following conditions
1.9 + are met:
1.10 +
1.11 + - Redistributions of source code must retain the above copyright
1.12 + notice, this list of conditions and the following disclaimer.
1.13 +
1.14 + - Redistributions in binary form must reproduce the above copyright
1.15 + notice, this list of conditions and the following disclaimer in the
1.16 + documentation and/or other materials provided with the distribution.
1.17 +
1.18 + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.19 + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.20 + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.21 + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
1.22 + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.23 + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.24 + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.25 + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.26 + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.27 + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.28 + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.29 +*/
1.30 +
1.31 +#ifndef PLC_H
1.32 +#define PLC_H
1.33 +
1.34 +#include "arch.h"
1.35 +
1.36 +#define LPC_ORDER 24
1.37 +
1.38 +void _celt_lpc(opus_val16 *_lpc, const opus_val32 *ac, int p);
1.39 +
1.40 +void celt_fir(const opus_val16 *x,
1.41 + const opus_val16 *num,
1.42 + opus_val16 *y,
1.43 + int N,
1.44 + int ord,
1.45 + opus_val16 *mem);
1.46 +
1.47 +void celt_iir(const opus_val32 *x,
1.48 + const opus_val16 *den,
1.49 + opus_val32 *y,
1.50 + int N,
1.51 + int ord,
1.52 + opus_val16 *mem);
1.53 +
1.54 +int _celt_autocorr(const opus_val16 *x, opus_val32 *ac,
1.55 + const opus_val16 *window, int overlap, int lag, int n, int arch);
1.56 +
1.57 +#endif /* PLC_H */
