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1 : edgomez 1.13.2.1 /*****************************************************************************
2 :     *
3 :     * XVID MPEG-4 VIDEO CODEC
4 :     * - Quantization matrix management code -
5 :     *
6 :     * Copyright(C) 2002 Michael Militzer <isibaar@xvid.org>
7 :     * 2002 Peter Ross <pross@xvid.org>
8 :     *
9 :     * This program is free software ; you can redistribute it and/or modify
10 :     * it under the terms of the GNU General Public License as published by
11 :     * the Free Software Foundation ; either version 2 of the License, or
12 :     * (at your option) any later version.
13 :     *
14 :     * This program is distributed in the hope that it will be useful,
15 :     * but WITHOUT ANY WARRANTY ; without even the implied warranty of
16 :     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 :     * GNU General Public License for more details.
18 :     *
19 :     * You should have received a copy of the GNU General Public License
20 :     * along with this program ; if not, write to the Free Software
21 :     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 :     *
23 :     * $Id$
24 :     *
25 :     ****************************************************************************/
26 :    
27 : Isibaar 1.2 #include "quant_matrix.h"
28 : Isibaar 1.1
29 : edgomez 1.13 #define FIX(X) (((X)==1) ? 0xFFFF : ((1UL << 16) / (X) + 1))
30 :     #define FIXL(X) ((1UL << 16) / (X) - 1)
31 : edgomez 1.6
32 : edgomez 1.13.2.2 static uint8_t custom_intra_matrix = 0;
33 :     static uint8_t custom_inter_matrix = 0;
34 : Isibaar 1.3
35 : edgomez 1.13.2.2 /*****************************************************************************
36 :     * Default matrices
37 :     ****************************************************************************/
38 :    
39 :     static const uint8_t default_intra_matrix[64] = {
40 :     8, 17, 18, 19, 21, 23, 25, 27,
41 : edgomez 1.5 17, 18, 19, 21, 23, 25, 27, 28,
42 :     20, 21, 22, 23, 24, 26, 28, 30,
43 :     21, 22, 23, 24, 26, 28, 30, 32,
44 :     22, 23, 24, 26, 28, 30, 32, 35,
45 :     23, 24, 26, 28, 30, 32, 35, 38,
46 :     25, 26, 28, 30, 32, 35, 38, 41,
47 :     27, 28, 30, 32, 35, 38, 41, 45
48 : Isibaar 1.3 };
49 : Isibaar 1.1
50 : edgomez 1.13.2.2 static const uint8_t default_inter_matrix[64] = {
51 :     16, 17, 18, 19, 20, 21, 22, 23,
52 :     17, 18, 19, 20, 21, 22, 23, 24,
53 :     18, 19, 20, 21, 22, 23, 24, 25,
54 :     19, 20, 21, 22, 23, 24, 26, 27,
55 :     20, 21, 22, 23, 25, 26, 27, 28,
56 :     21, 22, 23, 24, 26, 27, 28, 30,
57 :     22, 23, 24, 26, 27, 28, 30, 31,
58 :     23, 24, 25, 27, 28, 30, 31, 33
59 :     };
60 :    
61 : edgomez 1.7 int16_t intra_matrix[64] = {
62 : edgomez 1.13.2.2 8, 17, 18, 19, 21, 23, 25, 27,
63 : edgomez 1.5 17, 18, 19, 21, 23, 25, 27, 28,
64 :     20, 21, 22, 23, 24, 26, 28, 30,
65 :     21, 22, 23, 24, 26, 28, 30, 32,
66 :     22, 23, 24, 26, 28, 30, 32, 35,
67 :     23, 24, 26, 28, 30, 32, 35, 38,
68 :     25, 26, 28, 30, 32, 35, 38, 41,
69 :     27, 28, 30, 32, 35, 38, 41, 45
70 : Isibaar 1.1 };
71 :    
72 : edgomez 1.13 uint16_t intra_matrix_fixfix[64] = {
73 :     0, 0, 0, 0, 0, 0, 0, 0,
74 :     0, 0, 0, 0, 0, 0, 0, 0,
75 :     0, 0, 0, 0, 0, 0, 0, 0,
76 :     0, 0, 0, 0, 0, 0, 0, 0,
77 :     0, 0, 0, 0, 0, 0, 0, 0,
78 :     0, 0, 0, 0, 0, 0, 0, 0,
79 :     0, 0, 0, 0, 0, 0, 0, 0,
80 :     0, 0, 0, 0, 0, 0, 0, 0
81 :     };
82 :    
83 :     uint16_t inter_matrix_fixfix[64] = {
84 :     0, 0, 0, 0, 0, 0, 0, 0,
85 :     0, 0, 0, 0, 0, 0, 0, 0,
86 :     0, 0, 0, 0, 0, 0, 0, 0,
87 :     0, 0, 0, 0, 0, 0, 0, 0,
88 :     0, 0, 0, 0, 0, 0, 0, 0,
89 :     0, 0, 0, 0, 0, 0, 0, 0,
90 :     0, 0, 0, 0, 0, 0, 0, 0,
91 :     0, 0, 0, 0, 0, 0, 0, 0
92 :     };
93 :    
94 :     uint16_t intra_matrix1[64] = {
95 : edgomez 1.13.2.2 8>>1, 17>>1, 18>>1, 19>>1, 21>>1, 23>>1, 25>>1, 27>>1,
96 : edgomez 1.13 17>>1, 18>>1, 19>>1, 21>>1, 23>>1, 25>>1, 27>>1, 28>>1,
97 :     20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1,
98 :     21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1,
99 :     22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1,
100 :     23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1,
101 :     25>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, 41>>1,
102 :     27>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, 41>>1, 45>>1
103 :     };
104 :    
105 :    
106 :     uint16_t intra_matrix_fix[64] = {
107 : edgomez 1.5 FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27),
108 :     FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28),
109 :     FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30),
110 :     FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32),
111 :     FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35),
112 :     FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38),
113 :     FIX(25), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41),
114 :     FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45)
115 : Isibaar 1.2 };
116 :    
117 : edgomez 1.13 uint16_t intra_matrix_fixl[64] = {
118 :     FIXL(8), FIXL(17), FIXL(18), FIXL(19), FIXL(21), FIXL(23), FIXL(25), FIXL(27),
119 :     FIXL(17), FIXL(18), FIXL(19), FIXL(21), FIXL(23), FIXL(25), FIXL(27), FIXL(28),
120 :     FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30),
121 :     FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32),
122 :     FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35),
123 :     FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38),
124 :     FIXL(25), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), FIXL(41),
125 :     FIXL(27), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), FIXL(41), FIXL(45)
126 :     };
127 :    
128 :     uint16_t inter_matrix_fixl[64] = {
129 :     FIXL(16), FIXL(17), FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23),
130 :     FIXL(17), FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24),
131 :     FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(25),
132 :     FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27),
133 :     FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(25), FIXL(26), FIXL(27), FIXL(28),
134 :     FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), FIXL(28), FIXL(30),
135 :     FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), FIXL(28), FIXL(30), FIXL(31),
136 :     FIXL(23), FIXL(24), FIXL(25), FIXL(27), FIXL(28), FIXL(30), FIXL(31), FIXL(33)
137 :     };
138 :    
139 : edgomez 1.7 int16_t inter_matrix[64] = {
140 : edgomez 1.5 16, 17, 18, 19, 20, 21, 22, 23,
141 :     17, 18, 19, 20, 21, 22, 23, 24,
142 :     18, 19, 20, 21, 22, 23, 24, 25,
143 :     19, 20, 21, 22, 23, 24, 26, 27,
144 :     20, 21, 22, 23, 25, 26, 27, 28,
145 :     21, 22, 23, 24, 26, 27, 28, 30,
146 :     22, 23, 24, 26, 27, 28, 30, 31,
147 :     23, 24, 25, 27, 28, 30, 31, 33
148 : Isibaar 1.1 };
149 : edgomez 1.13.2.2
150 : edgomez 1.13 uint16_t inter_matrix1[64] = {
151 :     16>>1, 17>>1, 18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1,
152 :     17>>1, 18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1,
153 :     18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 25>>1,
154 :     19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 27>>1,
155 :     20>>1, 21>>1, 22>>1, 23>>1, 25>>1, 26>>1, 27>>1, 28>>1,
156 :     21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 27>>1, 28>>1, 30>>1,
157 :     22>>1, 23>>1, 24>>1, 26>>1, 27>>1, 28>>1, 30>>1, 31>>1,
158 :     23>>1, 24>>1, 25>>1, 27>>1, 28>>1, 30>>1, 31>>1, 33>>1
159 :     };
160 : Isibaar 1.1
161 : edgomez 1.13 uint16_t inter_matrix_fix[64] = {
162 : edgomez 1.5 FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23),
163 :     FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24),
164 :     FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25),
165 :     FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27),
166 :     FIX(20), FIX(21), FIX(22), FIX(23), FIX(25), FIX(26), FIX(27), FIX(28),
167 :     FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30),
168 :     FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), FIX(31),
169 :     FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33)
170 : Isibaar 1.2 };
171 : edgomez 1.6
172 : edgomez 1.5 uint8_t
173 :     get_intra_matrix_status(void)
174 :     {
175 : Isibaar 1.3 return custom_intra_matrix;
176 : Isibaar 1.2 }
177 : Isibaar 1.1
178 : edgomez 1.5 uint8_t
179 :     get_inter_matrix_status(void)
180 :     {
181 : Isibaar 1.3 return custom_inter_matrix;
182 : Isibaar 1.2 }
183 :    
184 : edgomez 1.5 void
185 :     set_intra_matrix_status(uint8_t status)
186 :     {
187 : Isibaar 1.3 custom_intra_matrix = status;
188 : Isibaar 1.2 }
189 : Isibaar 1.1
190 : edgomez 1.5 void
191 :     set_inter_matrix_status(uint8_t status)
192 :     {
193 : Isibaar 1.3 custom_inter_matrix = status;
194 : Isibaar 1.2 }
195 : Isibaar 1.1
196 : edgomez 1.13.2.2 const int16_t *
197 : edgomez 1.5 get_intra_matrix(void)
198 :     {
199 : Isibaar 1.2 return intra_matrix;
200 : Isibaar 1.1 }
201 :    
202 : edgomez 1.13.2.2 const int16_t *
203 : edgomez 1.5 get_inter_matrix(void)
204 :     {
205 : Isibaar 1.4 return inter_matrix;
206 :     }
207 :    
208 : edgomez 1.13.2.2 const uint8_t *
209 : edgomez 1.5 get_default_intra_matrix(void)
210 :     {
211 : Isibaar 1.3 return default_intra_matrix;
212 :     }
213 :    
214 : edgomez 1.13.2.2 const uint8_t *
215 : edgomez 1.5 get_default_inter_matrix(void)
216 :     {
217 : Isibaar 1.3 return default_inter_matrix;
218 : Isibaar 1.2 }
219 : Isibaar 1.1
220 : edgomez 1.5 uint8_t
221 : edgomez 1.13.2.2 set_intra_matrix(const uint8_t * matrix)
222 : Isibaar 1.1 {
223 : Isibaar 1.3 int i, change = 0;
224 : edgomez 1.5
225 : Isibaar 1.3 custom_intra_matrix = 0;
226 : Isibaar 1.2
227 : edgomez 1.5 for (i = 0; i < 64; i++) {
228 :     if ((int16_t) default_intra_matrix[i] != matrix[i])
229 : Isibaar 1.3 custom_intra_matrix = 1;
230 : edgomez 1.5 if (intra_matrix[i] != matrix[i])
231 : Isibaar 1.3 change = 1;
232 : Isibaar 1.2
233 : edgomez 1.13 intra_matrix1[i] = ((intra_matrix[i] = (int16_t) matrix[i])>>1);
234 :     intra_matrix1[i] += ((intra_matrix[i] == 1) ? 1: 0);
235 : Isibaar 1.2 intra_matrix_fix[i] = FIX(intra_matrix[i]);
236 : edgomez 1.13 intra_matrix_fixl[i] = FIXL(intra_matrix[i]);
237 : Isibaar 1.1 }
238 : edgomez 1.13 return custom_intra_matrix | change;
239 : Isibaar 1.2 }
240 : Isibaar 1.1
241 : Isibaar 1.2
242 : edgomez 1.5 uint8_t
243 : edgomez 1.13.2.2 set_inter_matrix(const uint8_t * matrix)
244 : Isibaar 1.2 {
245 : Isibaar 1.3 int i, change = 0;
246 : edgomez 1.5
247 : Isibaar 1.3 custom_inter_matrix = 0;
248 : Isibaar 1.2
249 : edgomez 1.5 for (i = 0; i < 64; i++) {
250 :     if ((int16_t) default_inter_matrix[i] != matrix[i])
251 : Isibaar 1.3 custom_inter_matrix = 1;
252 : edgomez 1.5 if (inter_matrix[i] != matrix[i])
253 : Isibaar 1.3 change = 1;
254 : Isibaar 1.2
255 : edgomez 1.13 inter_matrix1[i] = ((inter_matrix[i] = (int16_t) matrix[i])>>1);
256 :     inter_matrix1[i] += ((inter_matrix[i] == 1) ? 1: 0);
257 : Isibaar 1.2 inter_matrix_fix[i] = FIX(inter_matrix[i]);
258 : edgomez 1.13 inter_matrix_fixl[i] = FIXL(inter_matrix[i]);
259 : Isibaar 1.2 }
260 : edgomez 1.13 return custom_inter_matrix | change;
261 : Isibaar 1.1 }
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