st/libs/libvorbis-1.1.2/lib/lsp.h
2008-04-04 00:00:00 +00:00

28 lines
1.2 KiB
C

/********************************************************************
* *
* 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 1994-2002 *
* by the XIPHOPHORUS Company http://www.xiph.org/ *
* *
********************************************************************
function: LSP (also called LSF) conversion routines
last mod: $Id: lsp.h 7187 2004-07-20 07:24:27Z xiphmont $
********************************************************************/
#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