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: random psychoacoustics (not including preecho)
15 last mod: $Id: psy.h,v 1.9 2000/02/05 23:31:50 xiphmont Exp $
17 ********************************************************************/
24 struct vorbis_info_psy *vi;
38 extern void _vp_psy_init(vorbis_look_psy *p,vorbis_info_psy *vi,int n,long rate);
39 extern void _vp_psy_clear(vorbis_look_psy *p);
40 extern void *_vi_psy_dup(void *source);
41 extern void _vi_psy_free(vorbis_info_psy *i);
43 extern void _vp_mask_floor(vorbis_look_psy *p,double *pcm,
44 double *mask,double *floor);
45 extern void _vp_quantize(vorbis_look_psy *p, double *pcm, double *mask,
46 double *floor,int *aux);