1 | /******************************************************************** |
2 | * * |
3 | * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
4 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
5 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
6 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
7 | * * |
8 | * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 * |
9 | * by the Xiph.Org Foundation https://xiph.org/ * |
10 | * * |
11 | ******************************************************************** |
12 | |
13 | function: LSP (also called LSF) conversion routines |
14 | |
15 | ********************************************************************/ |
16 | |
17 | |
18 | #ifndef _V_LSP_H_ |
19 | #define _V_LSP_H_ |
20 | |
21 | extern int vorbis_lpc_to_lsp(float *lpc,float *lsp,int m); |
22 | |
23 | extern void vorbis_lsp_to_curve(float *curve,int *map,int n,int ln, |
24 | float *lsp,int m, |
25 | float amp,float ampoffset); |
26 | |
27 | #endif |
28 | |