63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
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* Project 25 IMBE Encoder/Decoder Fixed-Point implementation
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* Developed by Pavel Yazev E-mail: pyazev@gmail.com
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* Version 1.0 (c) Copyright 2009
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* The software is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Boston, MA
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* 02110-1301, USA.
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*/
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#ifndef _GLOBALS
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#define _GLOBALS
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//#define PI (double)3.1415926535897932384626433832795
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#define CNST_0_9254_Q0_16 60647 // 0.9254 in unsigned Q0.16 format
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#define CNST_0_33_Q0_16 0x5556 // 0.(3) = 1/3 in unsigned Q0.16 format
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#define CNST_ONE_Q8_24 0x01000000
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#define CNST_0_7_Q1_15 0x599A
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#define CNST_0_4_Q1_15 0x3333
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#define CNST_0_03_Q1_15 0x03D7
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#define CNST_0_05_Q1_15 0x0666
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#define CNST_1_125_Q8_8 0x0120
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#define CNST_0_5_Q8_8 0x0080
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#define CNST_0_125_Q8_8 0x0020
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#define CNST_0_25_Q8_8 0x0040
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#define CNST_0_8717_Q1_15 0x6F94
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#define CNST_0_0031_Q1_15 0x0064
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#define CNST_0_48_Q4_12 0x07AE
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#define CNST_1_00_Q4_12 0x1000
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#define CNST_0_85_Q4_12 0x0D9B
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#define CNST_0_4_Q4_12 0x0666
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#define CNST_0_05_Q4_12 0x00CD
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#define CNST_0_5882_Q1_15 0x4B4B
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#define CNST_0_2857_Q1_15 0x2492
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#define HI_BYTE(a) ((a >> 8) & 0xFF)
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#define LO_BYTE(a) (a & 0xFF);
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#endif
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