/* * Project 25 IMBE Encoder/Decoder Fixed-Point implementation * Developed by Pavel Yazev E-mail: pyazev@gmail.com * Version 1.0 (c) Copyright 2009 * * This 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 3, or (at your option) * any later version. * * The software 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; see the file COPYING. If not, write to the Free * Software Foundation, Inc., 51 Franklin Street, Boston, MA * 02110-1301, USA. */ #ifndef _GLOBALS #define _GLOBALS //#define PI (double)3.1415926535897932384626433832795 #define CNST_0_9254_Q0_16 60647 // 0.9254 in unsigned Q0.16 format #define CNST_0_33_Q0_16 0x5556 // 0.(3) = 1/3 in unsigned Q0.16 format #define CNST_ONE_Q8_24 0x01000000 #define CNST_0_7_Q1_15 0x599A #define CNST_0_4_Q1_15 0x3333 #define CNST_0_03_Q1_15 0x03D7 #define CNST_0_05_Q1_15 0x0666 #define CNST_1_125_Q8_8 0x0120 #define CNST_0_5_Q8_8 0x0080 #define CNST_0_125_Q8_8 0x0020 #define CNST_0_25_Q8_8 0x0040 #define CNST_0_8717_Q1_15 0x6F94 #define CNST_0_0031_Q1_15 0x0064 #define CNST_0_48_Q4_12 0x07AE #define CNST_1_00_Q4_12 0x1000 #define CNST_0_85_Q4_12 0x0D9B #define CNST_0_4_Q4_12 0x0666 #define CNST_0_05_Q4_12 0x00CD #define CNST_0_5882_Q1_15 0x4B4B #define CNST_0_2857_Q1_15 0x2492 #define HI_BYTE(a) ((a >> 8) & 0xFF) #define LO_BYTE(a) (a & 0xFF); #endif