1 /********************************************************************
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. *
8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 *
9 * by the XIPHOPHORUS Company http://www.xiph.org/ *
11 ********************************************************************
13 function: PCM data envelope analysis and manipulation
14 last mod: $Id: envelope.h,v 1.16 2001/02/26 03:50:41 xiphmont Exp $
16 ********************************************************************/
38 extern void _ve_envelope_init(envelope_lookup *e,vorbis_info *vi);
39 extern void _ve_envelope_clear(envelope_lookup *e);
40 extern long _ve_envelope_search(vorbis_dsp_state *v,long searchpoint);
41 extern void _ve_envelope_shift(envelope_lookup *e,long shift);