• lpc.h
  • /********************************************************************
     *                                                                  *
     * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
     * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
     * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
     * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
     *                                                                  *
     * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
     * by the Xiph.Org Foundation https://xiph.org/                     *
     *                                                                  *
     ********************************************************************
    
      function: LPC low level routines
    
     ********************************************************************/
    
    #ifndef _V_LPC_H_
    #define _V_LPC_H_
    
    #include "vorbis/codec.h"
    
    /* simple linear scale LPC code */
    extern float vorbis_lpc_from_data(float *data,float *lpc,int n,int m);
    
    extern void vorbis_lpc_predict(float *coeff,float *prime,int m,
                                   float *data,long n);
    
    #endif