aboutsummaryrefslogtreecommitdiffstats
path: root/code/libspeex/smallft.h
diff options
context:
space:
mode:
authoricculus <icculus@edf5b092-35ff-0310-97b2-ce42778d08ea>2008-06-01 18:53:28 +0000
committericculus <icculus@edf5b092-35ff-0310-97b2-ce42778d08ea>2008-06-01 18:53:28 +0000
commit365b434ae956d192f2983ed9b2d863caa7d2ad75 (patch)
tree933aa6641899165f5308e0b70b9566f5bc91bc7f /code/libspeex/smallft.h
parentb229b4d03d12aceb48df50ca6916a1058b1879fc (diff)
downloadioquake3-aero-365b434ae956d192f2983ed9b2d863caa7d2ad75.tar.gz
ioquake3-aero-365b434ae956d192f2983ed9b2d863caa7d2ad75.zip
Added libspeex to revision control, and updated Makefile to use it.
git-svn-id: svn://svn.icculus.org/quake3/trunk@1352 edf5b092-35ff-0310-97b2-ce42778d08ea
Diffstat (limited to 'code/libspeex/smallft.h')
-rw-r--r--code/libspeex/smallft.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/code/libspeex/smallft.h b/code/libspeex/smallft.h
new file mode 100644
index 0000000..446e2f6
--- /dev/null
+++ b/code/libspeex/smallft.h
@@ -0,0 +1,46 @@
+/********************************************************************
+ * *
+ * 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 1994-2001 *
+ * by the XIPHOPHORUS Company http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: fft transform
+ last mod: $Id: smallft.h,v 1.3 2003/09/16 18:35:45 jm Exp $
+
+ ********************************************************************/
+/**
+ @file smallft.h
+ @brief Discrete Rotational Fourier Transform (DRFT)
+*/
+
+#ifndef _V_SMFT_H_
+#define _V_SMFT_H_
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Discrete Rotational Fourier Transform lookup */
+struct drft_lookup{
+ int n;
+ float *trigcache;
+ int *splitcache;
+};
+
+extern void spx_drft_forward(struct drft_lookup *l,float *data);
+extern void spx_drft_backward(struct drft_lookup *l,float *data);
+extern void spx_drft_init(struct drft_lookup *l,int n);
+extern void spx_drft_clear(struct drft_lookup *l);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif