media/libvorbis/lib/smallft.h@6474c204b198 (annotated)
media/libvorbis/lib/smallft.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /******************************************************************** |
| michael@0 | 2 | * * |
| michael@0 | 3 | * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
| michael@0 | 4 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
| michael@0 | 5 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
| michael@0 | 6 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
| michael@0 | 7 | * * |
| michael@0 | 8 | * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * |
| michael@0 | 9 | * by the Xiph.Org Foundation http://www.xiph.org/ * |
| michael@0 | 10 | * * |
| michael@0 | 11 | ******************************************************************** |
| michael@0 | 12 | |
| michael@0 | 13 | function: fft transform |
| michael@0 | 14 | last mod: $Id: smallft.h 13293 2007-07-24 00:09:47Z xiphmont $ |
| michael@0 | 15 | |
| michael@0 | 16 | ********************************************************************/ |
| michael@0 | 17 | |
| michael@0 | 18 | #ifndef _V_SMFT_H_ |
| michael@0 | 19 | #define _V_SMFT_H_ |
| michael@0 | 20 | |
| michael@0 | 21 | #include "vorbis/codec.h" |
| michael@0 | 22 | |
| michael@0 | 23 | typedef struct { |
| michael@0 | 24 | int n; |
| michael@0 | 25 | float *trigcache; |
| michael@0 | 26 | int *splitcache; |
| michael@0 | 27 | } drft_lookup; |
| michael@0 | 28 | |
| michael@0 | 29 | extern void drft_forward(drft_lookup *l,float *data); |
| michael@0 | 30 | extern void drft_backward(drft_lookup *l,float *data); |
| michael@0 | 31 | extern void drft_init(drft_lookup *l,int n); |
| michael@0 | 32 | extern void drft_clear(drft_lookup *l); |
| michael@0 | 33 | |
| michael@0 | 34 | #endif |
