www.pudn.com > VirtualVCR-src-v2.6.9.zip > src_filter_asm.h

//	SRC_Filter - High Quality Audio Sample-Rate-Conversion  
//	Copyright (C) 2001 Andreas Dittrich 
// 
//	This program is free software; you can redistribute it and/or modify 
//	it under the terms of the GNU General Public License as published by 
//	the Free Software Foundation; either version 2 of the License, or 
//	(at your option) any later version. 
// 
//	This program 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 General Public License for more details. 
// 
//	You should have received a copy of the GNU General Public License 
//	along with this program; if not, write to the Free Software 
//	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
 
#include  
 
 
#define N_FILTERORDER 32 
#define N_FILTERORDER2 16 
#define N_FILTERORDER4 8 
#define N_FILTERORDER16 2 
#define N_SUBFILTER 256 
 
#define MUL_ACC_SHR 12 
#define H_DIGITS 16 
#define LINEAR_INTERPOLATION_DIGITS 7	//  MUL_ACC_SHR > LINEAR_INTERPOLATION_DIGITS !!! 
#define ROUNDING_OFFSET ( (1<<(H_DIGITS-2-MUL_ACC_SHR+LINEAR_INTERPOLATION_DIGITS)) + \ 
						  (N_FILTERORDER2<