1 /********************************************************************
3 * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. *
4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
5 * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. *
6 * PLEASE READ THESE TERMS DISTRIBUTING. *
8 * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-2000 *
9 * by Monty <monty@xiph.org> and The XIPHOPHORUS Company *
10 * http://www.xiph.org/ *
12 ********************************************************************
14 function: PCM data envelope analysis and manipulation
15 last mod: $Id: envelope.h,v 1.7 1999/12/30 07:26:37 xiphmont Exp $
17 ********************************************************************/
22 extern void _ve_envelope_init(envelope_lookup *e,int samples_per);
24 extern void _ve_envelope_deltas(vorbis_dsp_state *v);
25 extern void _ve_envelope_clear(envelope_lookup *e);