utilities.h

00001 /*
00002  * g722_1 - a library for the G.722.1 and Annex C codecs
00003  *
00004  * utilities.h
00005  *
00006  * Copyright (C) 2006 Steve Underwood
00007  *
00008  * This program is distributed in the hope that it will be useful,
00009  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00010  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00011  *
00012  * $Id: utilities.h,v 1.2 2008/11/25 13:45:01 steveu Exp $
00013  */
00014 
00015 #if !defined(__UTILITIES_H__)
00016 #define __UTILITIES_H__
00017 
00018 /* Prototypes for some general purpose signal and vector functions */
00019 #if defined(G722_1_USE_FIXED_POINT)
00020 void vec_copyi16(int16_t z[], const int16_t x[], int n);
00021 int32_t vec_dot_prodi16(const int16_t x[], const int16_t y[], int n);
00022 #else
00023 void vec_copyf(float z[], const float x[], int n);
00024 void vec_zerof(float z[], int n);
00025 void vec_subf(float z[], const float x[], const float y[], int n);
00026 void vec_scalar_mulf(float z[], const float x[], float y, int n);
00027 void vec_mulf(float z[], const float x[], const float y[], int n);
00028 float vec_dot_prodf(const float x[], const float y[], int n);
00029 void vec_scaled_addf(float z[], const float x[], float x_scale, const float y[], float y_scale, int n);
00030 void vec_scaled_subf(float z[], const float x[], float x_scale, const float y[], float y_scale, int n);
00031 #endif
00032 
00033 #endif
00034 /*- End of file ------------------------------------------------------------*/