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smallft.h
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1/********************************************************************
2 * *
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. *
7 * *
8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
9 * by the Xiph.Org Foundation https://xiph.org/ *
10 * *
11 ********************************************************************
12
13 function: fft transform
14
15 ********************************************************************/
16
17#ifndef _V_SMFT_H_
18#define _V_SMFT_H_
19
20#include "../../codec.h"
21
22typedef struct {
23 int n;
24 float *trigcache;
27
28extern void drft_forward(drft_lookup *l,float *data);
29extern void drft_backward(drft_lookup *l,float *data);
30extern void drft_init(drft_lookup *l,int n);
31extern void drft_clear(drft_lookup *l);
32
33#endif
int * l
Definition inflate.c:1579
JSAMPIMAGE data
Definition jpeglib.h:945
void drft_clear(drft_lookup *l)
Definition smallft.c:1252
void drft_backward(drft_lookup *l, float *data)
Definition smallft.c:1240
void drft_forward(drft_lookup *l, float *data)
Definition smallft.c:1235
void drft_init(drft_lookup *l, int n)
Definition smallft.c:1245
Definition smallft.h:22
int n
Definition smallft.h:23
float * trigcache
Definition smallft.h:24
int * splitcache
Definition smallft.h:25
int n
Definition crypt.c:458