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Viewing changes to daemon/libs/pjproject-2.1.0/third_party/speex/libspeex/smallft.h

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2015-01-07 14:51:16 UTC
  • mfrom: (4.3.5 sid)
  • Revision ID: package-import@ubuntu.com-20150107145116-yxnafinf4lrdvrmx
Tags: 1.4.1-0.1ubuntu1
* Merge with Debian, remaining changes:
 - Drop soprano, nepomuk build-dep
* Drop ubuntu patches, now upstream

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daemon/libs/pjproject-2.1.0/third_party/speex/libspeex/smallft.h
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/********************************************************************
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 *                                                                  *
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 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
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 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
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 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
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 *                                                                  *
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 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001             *
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 * by the XIPHOPHORUS Company http://www.xiph.org/                  *
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 *                                                                  *
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 ********************************************************************
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 function: fft transform
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 last mod: $Id: smallft.h 2002 2008-06-10 14:09:37Z nanang $
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 ********************************************************************/
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/**
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   @file smallft.h
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   @brief Discrete Rotational Fourier Transform (DRFT)
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*/
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#ifndef _V_SMFT_H_
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#define _V_SMFT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Discrete Rotational Fourier Transform lookup */
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struct drft_lookup{
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  int n;
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  float *trigcache;
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  int *splitcache;
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};
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extern void spx_drft_forward(struct drft_lookup *l,float *data);
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extern void spx_drft_backward(struct drft_lookup *l,float *data);
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extern void spx_drft_init(struct drft_lookup *l,int n);
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extern void spx_drft_clear(struct drft_lookup *l);
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#ifdef __cplusplus
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}
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#endif
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#endif