1 /********************************************************************
3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
5 * THE GNU LESSER/LIBRARY PUBLIC LICENSE, WHICH IS INCLUDED WITH *
6 * THIS SOURCE. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
8 * THE OggVorbis 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: fft transform
15 last mod: $Id: smallft.h,v 1.8 2000/11/06 00:07:02 xiphmont Exp $
17 ********************************************************************/
22 #include "vorbis/codec.h"
30 extern void drft_forward(drft_lookup *l,float *data);
31 extern void drft_backward(drft_lookup *l,float *data);
32 extern void drft_init(drft_lookup *l,int n);
33 extern void drft_clear(drft_lookup *l);