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author | Aki <please@ignore.pl> | 2021-09-29 22:52:49 +0200 |
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committer | Aki <please@ignore.pl> | 2021-09-29 22:52:49 +0200 |
commit | 760f65d35df281b04d99843958623d99ab35dcaf (patch) | |
tree | 76f6f05695822256bbf8097fa0aa6b5d2a34369b /vorbis/lib/smallft.h | |
parent | bdb934044a10bcccdea4ae5e9b067a2e764e0e7f (diff) | |
parent | 74f4b1bc3b627ba4c7e03498234d88cacdfbe97b (diff) | |
download | starshatter-760f65d35df281b04d99843958623d99ab35dcaf.zip starshatter-760f65d35df281b04d99843958623d99ab35dcaf.tar.gz starshatter-760f65d35df281b04d99843958623d99ab35dcaf.tar.bz2 |
Merge commit '74f4b1bc3b627ba4c7e03498234d88cacdfbe97b' as 'vorbis'
Diffstat (limited to 'vorbis/lib/smallft.h')
-rw-r--r-- | vorbis/lib/smallft.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/vorbis/lib/smallft.h b/vorbis/lib/smallft.h new file mode 100644 index 0000000..9e867c6 --- /dev/null +++ b/vorbis/lib/smallft.h @@ -0,0 +1,33 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * + * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * + * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * + * * + * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * + * by the Xiph.Org Foundation http://www.xiph.org/ * + * * + ******************************************************************** + + function: fft transform + + ********************************************************************/ + +#ifndef _V_SMFT_H_ +#define _V_SMFT_H_ + +#include "vorbis/codec.h" + +typedef struct { + int n; + float *trigcache; + int *splitcache; +} drft_lookup; + +extern void drft_forward(drft_lookup *l,float *data); +extern void drft_backward(drft_lookup *l,float *data); +extern void drft_init(drft_lookup *l,int n); +extern void drft_clear(drft_lookup *l); + +#endif |