| Index: speex/libspeex/lpc.h
|
| ===================================================================
|
| --- speex/libspeex/lpc.h (revision 0)
|
| +++ speex/libspeex/lpc.h (revision 0)
|
| @@ -0,0 +1,53 @@
|
| +/* Copyright (C) 2002 Jean-Marc Valin */
|
| +/**
|
| + @file lpc.h
|
| + @brief Functions for LPC (Linear Prediction Coefficients) analysis
|
| +*/
|
| +/*
|
| + Redistribution and use in source and binary forms, with or without
|
| + modification, are permitted provided that the following conditions
|
| + are met:
|
| +
|
| + - Redistributions of source code must retain the above copyright
|
| + notice, this list of conditions and the following disclaimer.
|
| +
|
| + - Redistributions in binary form must reproduce the above copyright
|
| + notice, this list of conditions and the following disclaimer in the
|
| + documentation and/or other materials provided with the distribution.
|
| +
|
| + - Neither the name of the Xiph.org Foundation nor the names of its
|
| + contributors may be used to endorse or promote products derived from
|
| + this software without specific prior written permission.
|
| +
|
| + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
| + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
| + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
| + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
| + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
| + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
| + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
| + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| +*/
|
| +
|
| +#ifndef LPC_H
|
| +#define LPC_H
|
| +
|
| +#include "arch.h"
|
| +
|
| +void _spx_autocorr(
|
| + const spx_word16_t * x, /* in: [0...n-1] samples x */
|
| + spx_word16_t *ac, /* out: [0...lag-1] ac values */
|
| + int lag, int n);
|
| +
|
| +spx_word32_t /* returns minimum mean square error */
|
| +_spx_lpc(
|
| + spx_coef_t * lpc, /* [0...p-1] LPC coefficients */
|
| + const spx_word16_t * ac, /* in: [0...p] autocorrelation values */
|
| + int p
|
| + );
|
| +
|
| +
|
| +#endif
|
|
|
| Property changes on: speex/libspeex/lpc.h
|
| ___________________________________________________________________
|
| Name: svn:executable
|
| + *
|
|
|
|
|