[cvs] / xvidcore / src / quant / quant_matrix.c Repository:
ViewVC logotype

Annotation of /xvidcore/src/quant/quant_matrix.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.11 - (view) (download)

1 : edgomez 1.6 /*****************************************************************************
2 :     *
3 :     * XVID MPEG-4 VIDEO CODEC
4 :     * - Custom matrix quantization functions -
5 :     *
6 : edgomez 1.10 * Copyright(C) 2002 Michael Militzer <isibaar@xvid.org>
7 : edgomez 1.11 * 2002 Peter Ross <pross@xvid.org>
8 : edgomez 1.6 *
9 :     * This program is an implementation of a part of one or more MPEG-4
10 :     * Video tools as specified in ISO/IEC 14496-2 standard. Those intending
11 :     * to use this software module in hardware or software products are
12 :     * advised that its use may infringe existing patents or copyrights, and
13 :     * any such use would be at such party's own risk. The original
14 :     * developer of this software module and his/her company, and subsequent
15 :     * editors and their companies, will have no liability for use of this
16 :     * software or modifications or derivatives thereof.
17 :     *
18 :     * This program is free software ; you can redistribute it and/or modify
19 :     * it under the terms of the GNU General Public License as published by
20 :     * the Free Software Foundation ; either version 2 of the License, or
21 :     * (at your option) any later version.
22 :     *
23 :     * This program is distributed in the hope that it will be useful,
24 :     * but WITHOUT ANY WARRANTY ; without even the implied warranty of
25 :     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 :     * GNU General Public License for more details.
27 :     *
28 :     * You should have received a copy of the GNU General Public License
29 :     * along with this program ; if not, write to the Free Software
30 :     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 :     *
32 : edgomez 1.11 * $Id: quant_matrix.c,v 1.10 2002/10/19 11:41:11 edgomez Exp $
33 : edgomez 1.6 *
34 :     ****************************************************************************/
35 :    
36 : Isibaar 1.2 #include "quant_matrix.h"
37 : Isibaar 1.1
38 : Isibaar 1.2 #define FIX(X) (1 << 16) / (X) + 1
39 : Isibaar 1.1
40 : edgomez 1.6 /*****************************************************************************
41 :     * Local data
42 :     ****************************************************************************/
43 :    
44 :     /* ToDo : remove all this local to make this module thread safe */
45 : Isibaar 1.3 uint8_t custom_intra_matrix = 0;
46 :     uint8_t custom_inter_matrix = 0;
47 :    
48 : edgomez 1.8 uint8_t default_intra_matrix[64] = {
49 : edgomez 1.5 8, 17, 18, 19, 21, 23, 25, 27,
50 :     17, 18, 19, 21, 23, 25, 27, 28,
51 :     20, 21, 22, 23, 24, 26, 28, 30,
52 :     21, 22, 23, 24, 26, 28, 30, 32,
53 :     22, 23, 24, 26, 28, 30, 32, 35,
54 :     23, 24, 26, 28, 30, 32, 35, 38,
55 :     25, 26, 28, 30, 32, 35, 38, 41,
56 :     27, 28, 30, 32, 35, 38, 41, 45
57 : Isibaar 1.3 };
58 : Isibaar 1.1
59 : edgomez 1.7 int16_t intra_matrix[64] = {
60 : edgomez 1.5 8, 17, 18, 19, 21, 23, 25, 27,
61 :     17, 18, 19, 21, 23, 25, 27, 28,
62 :     20, 21, 22, 23, 24, 26, 28, 30,
63 :     21, 22, 23, 24, 26, 28, 30, 32,
64 :     22, 23, 24, 26, 28, 30, 32, 35,
65 :     23, 24, 26, 28, 30, 32, 35, 38,
66 :     25, 26, 28, 30, 32, 35, 38, 41,
67 :     27, 28, 30, 32, 35, 38, 41, 45
68 : Isibaar 1.1 };
69 :    
70 : edgomez 1.7 int16_t intra_matrix_fix[64] = {
71 : edgomez 1.5 FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27),
72 :     FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28),
73 :     FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30),
74 :     FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32),
75 :     FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35),
76 :     FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38),
77 :     FIX(25), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41),
78 :     FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45)
79 : Isibaar 1.2 };
80 :    
81 : edgomez 1.8 uint8_t default_inter_matrix[64] = {
82 : edgomez 1.5 16, 17, 18, 19, 20, 21, 22, 23,
83 :     17, 18, 19, 20, 21, 22, 23, 24,
84 :     18, 19, 20, 21, 22, 23, 24, 25,
85 :     19, 20, 21, 22, 23, 24, 26, 27,
86 :     20, 21, 22, 23, 25, 26, 27, 28,
87 :     21, 22, 23, 24, 26, 27, 28, 30,
88 :     22, 23, 24, 26, 27, 28, 30, 31,
89 :     23, 24, 25, 27, 28, 30, 31, 33
90 : Isibaar 1.3 };
91 :    
92 : edgomez 1.7 int16_t inter_matrix[64] = {
93 : edgomez 1.5 16, 17, 18, 19, 20, 21, 22, 23,
94 :     17, 18, 19, 20, 21, 22, 23, 24,
95 :     18, 19, 20, 21, 22, 23, 24, 25,
96 :     19, 20, 21, 22, 23, 24, 26, 27,
97 :     20, 21, 22, 23, 25, 26, 27, 28,
98 :     21, 22, 23, 24, 26, 27, 28, 30,
99 :     22, 23, 24, 26, 27, 28, 30, 31,
100 :     23, 24, 25, 27, 28, 30, 31, 33
101 : Isibaar 1.1 };
102 :    
103 : edgomez 1.7 int16_t inter_matrix_fix[64] = {
104 : edgomez 1.5 FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23),
105 :     FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24),
106 :     FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25),
107 :     FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27),
108 :     FIX(20), FIX(21), FIX(22), FIX(23), FIX(25), FIX(26), FIX(27), FIX(28),
109 :     FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30),
110 :     FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), FIX(31),
111 :     FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33)
112 : Isibaar 1.2 };
113 : edgomez 1.6
114 :     /*****************************************************************************
115 :     * Functions
116 :     ****************************************************************************/
117 : Isibaar 1.2
118 : edgomez 1.5 uint8_t
119 :     get_intra_matrix_status(void)
120 :     {
121 : Isibaar 1.3 return custom_intra_matrix;
122 : Isibaar 1.2 }
123 : Isibaar 1.1
124 : edgomez 1.5 uint8_t
125 :     get_inter_matrix_status(void)
126 :     {
127 : Isibaar 1.3 return custom_inter_matrix;
128 : Isibaar 1.2 }
129 :    
130 : edgomez 1.5 void
131 :     set_intra_matrix_status(uint8_t status)
132 :     {
133 : Isibaar 1.3 custom_intra_matrix = status;
134 : Isibaar 1.2 }
135 : Isibaar 1.1
136 : edgomez 1.5 void
137 :     set_inter_matrix_status(uint8_t status)
138 :     {
139 : Isibaar 1.3 custom_inter_matrix = status;
140 : Isibaar 1.2 }
141 : Isibaar 1.1
142 : edgomez 1.5 int16_t *
143 :     get_intra_matrix(void)
144 :     {
145 : Isibaar 1.2 return intra_matrix;
146 : Isibaar 1.1 }
147 :    
148 : edgomez 1.5 int16_t *
149 :     get_inter_matrix(void)
150 :     {
151 : Isibaar 1.4 return inter_matrix;
152 :     }
153 :    
154 : edgomez 1.5 uint8_t *
155 :     get_default_intra_matrix(void)
156 :     {
157 : Isibaar 1.3 return default_intra_matrix;
158 :     }
159 :    
160 : edgomez 1.5 uint8_t *
161 :     get_default_inter_matrix(void)
162 :     {
163 : Isibaar 1.3 return default_inter_matrix;
164 : Isibaar 1.2 }
165 : Isibaar 1.1
166 : edgomez 1.5 uint8_t
167 :     set_intra_matrix(uint8_t * matrix)
168 : Isibaar 1.1 {
169 : Isibaar 1.3 int i, change = 0;
170 : edgomez 1.5
171 : Isibaar 1.3 custom_intra_matrix = 0;
172 : Isibaar 1.2
173 : edgomez 1.5 for (i = 0; i < 64; i++) {
174 :     if ((int16_t) default_intra_matrix[i] != matrix[i])
175 : Isibaar 1.3 custom_intra_matrix = 1;
176 : edgomez 1.5 if (intra_matrix[i] != matrix[i])
177 : Isibaar 1.3 change = 1;
178 : Isibaar 1.2
179 :     intra_matrix[i] = (int16_t) matrix[i];
180 :     intra_matrix_fix[i] = FIX(intra_matrix[i]);
181 : Isibaar 1.1 }
182 : h 1.9 return /*custom_intra_matrix |*/ change;
183 : Isibaar 1.2 }
184 : Isibaar 1.1
185 : Isibaar 1.2
186 : edgomez 1.5 uint8_t
187 :     set_inter_matrix(uint8_t * matrix)
188 : Isibaar 1.2 {
189 : Isibaar 1.3 int i, change = 0;
190 : edgomez 1.5
191 : Isibaar 1.3 custom_inter_matrix = 0;
192 : Isibaar 1.2
193 : edgomez 1.5 for (i = 0; i < 64; i++) {
194 :     if ((int16_t) default_inter_matrix[i] != matrix[i])
195 : Isibaar 1.3 custom_inter_matrix = 1;
196 : edgomez 1.5 if (inter_matrix[i] != matrix[i])
197 : Isibaar 1.3 change = 1;
198 : Isibaar 1.2
199 :     inter_matrix[i] = (int16_t) matrix[i];
200 :     inter_matrix_fix[i] = FIX(inter_matrix[i]);
201 :     }
202 : h 1.9 return /*custom_inter_matrix |*/ change;
203 : Isibaar 1.1 }

No admin address has been configured
ViewVC Help
Powered by ViewVC 1.0.4