dbf-halloween2015

annotate libs/vorbis/smallft.h @ 4:4316c0c879e9

fixed RUN script for macosx
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 01 Nov 2015 06:18:18 +0200
parents
children
rev   line source
nuclear@1 1 /********************************************************************
nuclear@1 2 * *
nuclear@1 3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
nuclear@1 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
nuclear@1 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
nuclear@1 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
nuclear@1 7 * *
nuclear@1 8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
nuclear@1 9 * by the Xiph.Org Foundation http://www.xiph.org/ *
nuclear@1 10 * *
nuclear@1 11 ********************************************************************
nuclear@1 12
nuclear@1 13 function: fft transform
nuclear@1 14 last mod: $Id: smallft.h 13293 2007-07-24 00:09:47Z xiphmont $
nuclear@1 15
nuclear@1 16 ********************************************************************/
nuclear@1 17
nuclear@1 18 #ifndef _V_SMFT_H_
nuclear@1 19 #define _V_SMFT_H_
nuclear@1 20
nuclear@1 21 #include "vorbis/codec.h"
nuclear@1 22
nuclear@1 23 typedef struct {
nuclear@1 24 int n;
nuclear@1 25 float *trigcache;
nuclear@1 26 int *splitcache;
nuclear@1 27 } drft_lookup;
nuclear@1 28
nuclear@1 29 extern void drft_forward(drft_lookup *l,float *data);
nuclear@1 30 extern void drft_backward(drft_lookup *l,float *data);
nuclear@1 31 extern void drft_init(drft_lookup *l,int n);
nuclear@1 32 extern void drft_clear(drft_lookup *l);
nuclear@1 33
nuclear@1 34 #endif