add float support to resampling lib clean up header file

Original commit message from CVS:
* add float support to resampling lib
* clean up header file

1 files changed, 110 insertions, 0 deletions

diff --git a/gst-libs/gst/resample/private.h b/gst-libs/gst/resample/private.h
new file mode 100644
index 00000000..fb8ba87f
--- /dev/null
+++ b/gst-libs/gst/resample/private.h
@@ -0,0 +1,110 @@
+/* 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 __PRIVATE_H__
+#define __PRIVATE_H__
+
+#include "resample.h"
+#include "config.h"
+
+void resample_nearest_s16(resample_t *r);
+void resample_bilinear_s16(resample_t *r);
+void resample_sinc_s16(resample_t *r);
+void resample_sinc_slow_s16(resample_t *r);
+void resample_sinc_ft_s16(resample_t * r);
+
+void resample_nearest_float(resample_t *r);
+void resample_bilinear_float(resample_t *r);
+void resample_sinc_float(resample_t *r);
+void resample_sinc_slow_float(resample_t *r);
+void resample_sinc_ft_float(resample_t * r);
+
+
+typedef struct functable_s functable_t;
+struct functable_s {
+	double start;
+	double offset;
+	int len;
+
+	double invoffset;
+
+	double scale;
+	double scale2;
+
+	double (*func_x)(void *,double x);
+	double (*func_dx)(void *,double x);
+
+	double (*func2_x)(void *,double x);
+	double (*func2_dx)(void *,double x);
+
+	double *fx;
+	double *fdx;
+
+	void *priv;
+};
+
+void functable_init(functable_t *t);
+double functable_eval(functable_t *t,double x);
+
+double functable_fir(functable_t *t,double x0,int n,double *data,int len);
+void functable_fir2(functable_t *t,double *r0, double *r1, double x0,
+	int n,double *data,int len);
+
+double functable_sinc(void *p, double x);
+double functable_dsinc(void *p, double x);
+double functable_window_std(void *p, double x);
+double functable_window_dstd(void *p, double x);
+double functable_window_boxcar(void *p, double x);
+double functable_window_dboxcar(void *p, double x);
+
+/* math lib stuff */
+
+void conv_double_short_table(double *dest, short *src, int n);
+void conv_double_short_unroll(double *dest, short *src, int n);
+void conv_double_short_ref(double *dest, short *src, int n);
+#ifdef HAVE_CPU_PPC
+void conv_double_short_altivec(double *dest, short *src, int n);
+#endif
+
+void conv_short_double_ref(short *dest, double *src, int n);
+#ifdef HAVE_CPU_PPC
+void conv_short_double_ppcasm(short *dest, double *src, int n);
+#endif
+
+#ifdef HAVE_CPU_PPC
+#define conv_double_short conv_double_short_table
+#define conv_short_double conv_short_double_ppcasm
+#else
+#define conv_double_short conv_double_short_ref
+#define conv_short_double conv_short_double_ref
+#endif
+
+#define conv_double_float conv_double_float_ref
+#define conv_float_double conv_float_double_ref
+
+void conv_double_short_dstr(double *dest, short *src, int n, int dstr);
+void conv_short_double_sstr(short *dest, double *src, int n, int dstr);
+
+void conv_double_float_ref(double *dest, float *src, int n);
+void conv_float_double_ref(float *dest, double *src, int n);
+void conv_double_float_dstr(double *dest, float *src, int n, int dstr);
+void conv_float_double_sstr(float *dest, double *src, int n, int sstr);
+
+#endif /* __PRIVATE_H__ */