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authorAki <please@ignore.pl>2021-10-01 23:46:47 +0200
committerAki <please@ignore.pl>2021-10-01 23:46:47 +0200
commitddd76aa4e1571c8d5965709db5c3cd47a89c9a38 (patch)
tree4e07bfaebede6531a70984fdebc855bca52f394a /vorbis/lib/smallft.h
parent3a507e08b1d4e5970b27401a7e6517570d529400 (diff)
parentc2d2c3551501110fddd78674d5435bfaa70382a3 (diff)
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Project is now built with CMake
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+/********************************************************************
+ * *
+ * 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