• lsp.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 1994-2009             *
     * by the Xiph.Org Foundation https://xiph.org/                     *
     *                                                                  *
     ********************************************************************
    
      function: LSP (also called LSF) conversion routines
    
     ********************************************************************/
    
    
    #ifndef _V_LSP_H_
    #define _V_LSP_H_
    
    extern int vorbis_lpc_to_lsp(float *lpc,float *lsp,int m);
    
    extern void vorbis_lsp_to_curve(float *curve,int *map,int n,int ln,
                                    float *lsp,int m,
                                    float amp,float ampoffset);
    
    #endif