diff -r 567bb019e3e3 -r 7e817e7e631c gst_plugins_base/gst/audioresample/functable.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst_plugins_base/gst/audioresample/functable.h Wed Sep 01 12:16:41 2010 +0100 @@ -0,0 +1,113 @@ +/* Resampling library + * Copyright (C) <2001> David Schleef + * + * 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; +}; +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +Functable *functable_new (void); +void functable_setup (Functable *t); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_free (Functable *t); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +void functable_set_length (Functable *t, int length); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_set_offset (Functable *t, double offset); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_set_multiplier (Functable *t, double multiplier); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_calculate (Functable *t, FunctableFunc func, void *closure); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_calculate_multiply (Functable *t, FunctableFunc func, void *closure); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + + +double functable_evaluate (Functable *t,double x); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +double functable_fir(Functable *t,double x0,int n,double *data,int len); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_fir2(Functable *t,double *r0, double *r1, double x0, + int n,double *data,int len); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +void functable_func_sinc(double *fx, double *dfx, double x, void *closure); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_func_boxcar(double *fx, double *dfx, double x, void *closure); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void functable_func_hanning(double *fx, double *dfx, double x, void *closure); + +#endif /* __PRIVATE_H__ */ +