gst/audioresample/Makefile.am: Leet audioresampling code

Original commit message from CVS:
* gst/audioresample/Makefile.am: Leet audioresampling code
* gst/audioresample/buffer.c:
* gst/audioresample/buffer.h:
* gst/audioresample/debug.c:
* gst/audioresample/debug.h:
* gst/audioresample/functable.c:
* gst/audioresample/functable.h:
* gst/audioresample/gstaudioresample.c:
* gst/audioresample/gstaudioresample.h:
* gst/audioresample/resample.c:
* gst/audioresample/resample.h:
* gst/audioresample/resample_chunk.c:
* gst/audioresample/resample_functable.c:
* gst/audioresample/resample_ref.c:

1 files changed, 61 insertions, 0 deletions

diff --git a/gst/audioresample/functable.h b/gst/audioresample/functable.h
new file mode 100644
index 00000000..4349719d
--- /dev/null
+++ b/gst/audioresample/functable.h
@@ -0,0 +1,61 @@
+/* Resampling library
+ * Copyright (C) <2001> David Schleef <ds@schleef.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __FUNCTABLE_H__
+#define __FUNCTABLE_H__
+
+typedef void FunctableFunc (double *fx, double *dfx, double x, void *closure);
+
+typedef struct _Functable Functable;
+struct _Functable {
+  int length;
+
+  double offset;
+  double multiplier;
+
+  double inv_multiplier;
+
+  double *fx;
+  double *dfx;
+};
+
+Functable *functable_new (void);
+void functable_setup (Functable *t);
+void functable_free (Functable *t);
+
+void functable_set_length (Functable *t, int length);
+void functable_set_offset (Functable *t, double offset);
+void functable_set_multiplier (Functable *t, double multiplier);
+void functable_calculate (Functable *t, FunctableFunc func, void *closure);
+void functable_calculate_multiply (Functable *t, FunctableFunc func, void *closure);
+
+
+double functable_evaluate (Functable *t,double x);
+
+double functable_fir(Functable *t,double x0,int n,double *data,int len);
+void functable_fir2(Functable *t,double *r0, double *r1, double x0,
+	int n,double *data,int len);
+
+void functable_func_sinc(double *fx, double *dfx, double x, void *closure);
+void functable_func_boxcar(double *fx, double *dfx, double x, void *closure);
+void functable_func_hanning(double *fx, double *dfx, double x, void *closure);
+
+#endif /* __PRIVATE_H__ */
+