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/***************************************************************************** |
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* |
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* XVID MPEG-4 VIDEO CODEC |
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* - Custom matrix quantization functions - |
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* |
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* Copyright(C) 2002 Michael Militzer <isibaar@xvid.org> |
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* 2002 Peter Ross <pross@xvid.org> |
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* |
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* This file is part of XviD, a free MPEG-4 video encoder/decoder |
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* |
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* XviD 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 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* 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 program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Under section 8 of the GNU General Public License, the copyright |
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* holders of XVID explicitly forbid distribution in the following |
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* countries: |
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* |
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* - Japan |
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* - United States of America |
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* |
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* Linking XviD statically or dynamically with other modules is making a |
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* combined work based on XviD. Thus, the terms and conditions of the |
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* GNU General Public License cover the whole combination. |
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* |
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* As a special exception, the copyright holders of XviD give you |
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* permission to link XviD with independent modules that communicate with |
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* XviD solely through the VFW1.1 and DShow interfaces, regardless of the |
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* license terms of these independent modules, and to copy and distribute |
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* the resulting combined work under terms of your choice, provided that |
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* every copy of the combined work is accompanied by a complete copy of |
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* the source code of XviD (the version of XviD used to produce the |
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* combined work), being distributed under the terms of the GNU General |
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* Public License plus this exception. An independent module is a module |
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* which is not derived from or based on XviD. |
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* |
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* Note that people who make modified versions of XviD are not obligated |
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* to grant this special exception for their modified versions; it is |
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* their choice whether to do so. The GNU General Public License gives |
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* permission to release a modified version without this exception; this |
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* exception also makes it possible to release a modified version which |
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* carries forward this exception. |
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* |
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* $Id: quant_matrix.c,v 1.12 2002-11-17 00:41:19 edgomez Exp $ |
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* |
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****************************************************************************/ |
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1 |
#include "quant_matrix.h" |
#include "quant_matrix.h" |
2 |
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3 |
#define FIX(X) (1 << 16) / (X) + 1 |
#define FIX(X) (((X)==1) ? 0xFFFF : ((1UL << 16) / (X) + 1)) |
4 |
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#define FIXL(X) ((1UL << 16) / (X) - 1) |
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/***************************************************************************** |
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* Local data |
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****************************************************************************/ |
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5 |
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/* ToDo : remove all this local to make this module thread safe */ |
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uint8_t custom_intra_matrix = 0; |
uint8_t custom_intra_matrix = 0; |
7 |
uint8_t custom_inter_matrix = 0; |
uint8_t custom_inter_matrix = 0; |
8 |
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28 |
27, 28, 30, 32, 35, 38, 41, 45 |
27, 28, 30, 32, 35, 38, 41, 45 |
29 |
}; |
}; |
30 |
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31 |
int16_t intra_matrix_fix[64] = { |
uint16_t intra_matrix_fixfix[64] = { |
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0, 0, 0, 0, 0, 0, 0, 0, |
33 |
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0, 0, 0, 0, 0, 0, 0, 0, |
34 |
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0, 0, 0, 0, 0, 0, 0, 0, |
35 |
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0, 0, 0, 0, 0, 0, 0, 0, |
36 |
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0, 0, 0, 0, 0, 0, 0, 0, |
37 |
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0, 0, 0, 0, 0, 0, 0, 0, |
38 |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0 |
40 |
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}; |
41 |
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42 |
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uint16_t inter_matrix_fixfix[64] = { |
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0, 0, 0, 0, 0, 0, 0, 0, |
44 |
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0, 0, 0, 0, 0, 0, 0, 0, |
45 |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0 |
51 |
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}; |
52 |
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53 |
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uint16_t intra_matrix1[64] = { |
54 |
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8>>1, 17>>1, 18>>1, 19>>1, 21>>1, 23>>1, 25>>1, 27>>1, |
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17>>1, 18>>1, 19>>1, 21>>1, 23>>1, 25>>1, 27>>1, 28>>1, |
56 |
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20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, |
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21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, |
58 |
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22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, |
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23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, |
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25>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, 41>>1, |
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27>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, 41>>1, 45>>1 |
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}; |
63 |
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64 |
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65 |
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uint16_t intra_matrix_fix[64] = { |
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FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), |
FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), |
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FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28), |
FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28), |
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FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), |
FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), |
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FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45) |
FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45) |
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}; |
}; |
75 |
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76 |
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uint16_t intra_matrix_fixl[64] = { |
77 |
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FIXL(8), FIXL(17), FIXL(18), FIXL(19), FIXL(21), FIXL(23), FIXL(25), FIXL(27), |
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FIXL(17), FIXL(18), FIXL(19), FIXL(21), FIXL(23), FIXL(25), FIXL(27), FIXL(28), |
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FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), |
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FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), |
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FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), |
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FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), |
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FIXL(25), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), FIXL(41), |
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FIXL(27), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), FIXL(41), FIXL(45) |
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}; |
86 |
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87 |
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uint16_t inter_matrix_fixl[64] = { |
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FIXL(16), FIXL(17), FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), |
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FIXL(17), FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), |
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FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(25), |
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FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), |
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FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(25), FIXL(26), FIXL(27), FIXL(28), |
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FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), FIXL(28), FIXL(30), |
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FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), FIXL(28), FIXL(30), FIXL(31), |
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FIXL(23), FIXL(24), FIXL(25), FIXL(27), FIXL(28), FIXL(30), FIXL(31), FIXL(33) |
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}; |
97 |
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uint8_t default_inter_matrix[64] = { |
uint8_t default_inter_matrix[64] = { |
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16, 17, 18, 19, 20, 21, 22, 23, |
16, 17, 18, 19, 20, 21, 22, 23, |
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17, 18, 19, 20, 21, 22, 23, 24, |
17, 18, 19, 20, 21, 22, 23, 24, |
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22, 23, 24, 26, 27, 28, 30, 31, |
22, 23, 24, 26, 27, 28, 30, 31, |
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23, 24, 25, 27, 28, 30, 31, 33 |
23, 24, 25, 27, 28, 30, 31, 33 |
118 |
}; |
}; |
119 |
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uint16_t inter_matrix1[64] = { |
120 |
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16>>1, 17>>1, 18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, |
121 |
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17>>1, 18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, |
122 |
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18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 25>>1, |
123 |
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19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 27>>1, |
124 |
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20>>1, 21>>1, 22>>1, 23>>1, 25>>1, 26>>1, 27>>1, 28>>1, |
125 |
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21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 27>>1, 28>>1, 30>>1, |
126 |
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22>>1, 23>>1, 24>>1, 26>>1, 27>>1, 28>>1, 30>>1, 31>>1, |
127 |
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23>>1, 24>>1, 25>>1, 27>>1, 28>>1, 30>>1, 31>>1, 33>>1 |
128 |
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}; |
129 |
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130 |
int16_t inter_matrix_fix[64] = { |
uint16_t inter_matrix_fix[64] = { |
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FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), |
FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), |
132 |
FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), |
FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), |
133 |
FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25), |
FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25), |
138 |
FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33) |
FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33) |
139 |
}; |
}; |
140 |
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/***************************************************************************** |
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* Functions |
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****************************************************************************/ |
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141 |
uint8_t |
uint8_t |
142 |
get_intra_matrix_status(void) |
get_intra_matrix_status(void) |
143 |
{ |
{ |
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if (intra_matrix[i] != matrix[i]) |
if (intra_matrix[i] != matrix[i]) |
200 |
change = 1; |
change = 1; |
201 |
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intra_matrix[i] = (int16_t) matrix[i]; |
intra_matrix1[i] = ((intra_matrix[i] = (int16_t) matrix[i])>>1); |
203 |
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intra_matrix1[i] += ((intra_matrix[i] == 1) ? 1: 0); |
204 |
intra_matrix_fix[i] = FIX(intra_matrix[i]); |
intra_matrix_fix[i] = FIX(intra_matrix[i]); |
205 |
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intra_matrix_fixl[i] = FIXL(intra_matrix[i]); |
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} |
} |
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return /*custom_intra_matrix |*/ change; |
return custom_intra_matrix | change; |
208 |
} |
} |
209 |
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210 |
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if (inter_matrix[i] != matrix[i]) |
if (inter_matrix[i] != matrix[i]) |
222 |
change = 1; |
change = 1; |
223 |
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inter_matrix[i] = (int16_t) matrix[i]; |
inter_matrix1[i] = ((inter_matrix[i] = (int16_t) matrix[i])>>1); |
225 |
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inter_matrix1[i] += ((inter_matrix[i] == 1) ? 1: 0); |
226 |
inter_matrix_fix[i] = FIX(inter_matrix[i]); |
inter_matrix_fix[i] = FIX(inter_matrix[i]); |
227 |
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inter_matrix_fixl[i] = FIXL(inter_matrix[i]); |
228 |
} |
} |
229 |
return /*custom_inter_matrix |*/ change; |
return custom_inter_matrix | change; |
230 |
} |
} |