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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 : | edgomez | 1.12 | * This file is part of XviD, a free MPEG-4 video encoder/decoder |
10 : | * | ||
11 : | * XviD is free software; you can redistribute it and/or modify it | ||
12 : | * under the terms of the GNU General Public License as published by | ||
13 : | * the Free Software Foundation; either version 2 of the License, or | ||
14 : | edgomez | 1.6 | * (at your option) any later version. |
15 : | * | ||
16 : | * This program is distributed in the hope that it will be useful, | ||
17 : | edgomez | 1.12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
18 : | edgomez | 1.6 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
19 : | * GNU General Public License for more details. | ||
20 : | * | ||
21 : | * You should have received a copy of the GNU General Public License | ||
22 : | edgomez | 1.12 | * along with this program; if not, write to the Free Software |
23 : | edgomez | 1.6 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
24 : | * | ||
25 : | edgomez | 1.12 | * Under section 8 of the GNU General Public License, the copyright |
26 : | * holders of XVID explicitly forbid distribution in the following | ||
27 : | * countries: | ||
28 : | * | ||
29 : | * - Japan | ||
30 : | * - United States of America | ||
31 : | * | ||
32 : | * Linking XviD statically or dynamically with other modules is making a | ||
33 : | * combined work based on XviD. Thus, the terms and conditions of the | ||
34 : | * GNU General Public License cover the whole combination. | ||
35 : | * | ||
36 : | * As a special exception, the copyright holders of XviD give you | ||
37 : | * permission to link XviD with independent modules that communicate with | ||
38 : | * XviD solely through the VFW1.1 and DShow interfaces, regardless of the | ||
39 : | * license terms of these independent modules, and to copy and distribute | ||
40 : | * the resulting combined work under terms of your choice, provided that | ||
41 : | * every copy of the combined work is accompanied by a complete copy of | ||
42 : | * the source code of XviD (the version of XviD used to produce the | ||
43 : | * combined work), being distributed under the terms of the GNU General | ||
44 : | * Public License plus this exception. An independent module is a module | ||
45 : | * which is not derived from or based on XviD. | ||
46 : | * | ||
47 : | * Note that people who make modified versions of XviD are not obligated | ||
48 : | * to grant this special exception for their modified versions; it is | ||
49 : | * their choice whether to do so. The GNU General Public License gives | ||
50 : | * permission to release a modified version without this exception; this | ||
51 : | * exception also makes it possible to release a modified version which | ||
52 : | * carries forward this exception. | ||
53 : | * | ||
54 : | * $Id$ | ||
55 : | edgomez | 1.6 | * |
56 : | ****************************************************************************/ | ||
57 : | |||
58 : | Isibaar | 1.2 | #include "quant_matrix.h" |
59 : | Isibaar | 1.1 | |
60 : | Isibaar | 1.2 | #define FIX(X) (1 << 16) / (X) + 1 |
61 : | Isibaar | 1.1 | |
62 : | edgomez | 1.6 | /***************************************************************************** |
63 : | * Local data | ||
64 : | ****************************************************************************/ | ||
65 : | |||
66 : | /* ToDo : remove all this local to make this module thread safe */ | ||
67 : | Isibaar | 1.3 | uint8_t custom_intra_matrix = 0; |
68 : | uint8_t custom_inter_matrix = 0; | ||
69 : | |||
70 : | edgomez | 1.8 | uint8_t default_intra_matrix[64] = { |
71 : | edgomez | 1.5 | 8, 17, 18, 19, 21, 23, 25, 27, |
72 : | 17, 18, 19, 21, 23, 25, 27, 28, | ||
73 : | 20, 21, 22, 23, 24, 26, 28, 30, | ||
74 : | 21, 22, 23, 24, 26, 28, 30, 32, | ||
75 : | 22, 23, 24, 26, 28, 30, 32, 35, | ||
76 : | 23, 24, 26, 28, 30, 32, 35, 38, | ||
77 : | 25, 26, 28, 30, 32, 35, 38, 41, | ||
78 : | 27, 28, 30, 32, 35, 38, 41, 45 | ||
79 : | Isibaar | 1.3 | }; |
80 : | Isibaar | 1.1 | |
81 : | edgomez | 1.7 | int16_t intra_matrix[64] = { |
82 : | edgomez | 1.5 | 8, 17, 18, 19, 21, 23, 25, 27, |
83 : | 17, 18, 19, 21, 23, 25, 27, 28, | ||
84 : | 20, 21, 22, 23, 24, 26, 28, 30, | ||
85 : | 21, 22, 23, 24, 26, 28, 30, 32, | ||
86 : | 22, 23, 24, 26, 28, 30, 32, 35, | ||
87 : | 23, 24, 26, 28, 30, 32, 35, 38, | ||
88 : | 25, 26, 28, 30, 32, 35, 38, 41, | ||
89 : | 27, 28, 30, 32, 35, 38, 41, 45 | ||
90 : | Isibaar | 1.1 | }; |
91 : | |||
92 : | edgomez | 1.7 | int16_t intra_matrix_fix[64] = { |
93 : | edgomez | 1.5 | FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), |
94 : | FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28), | ||
95 : | FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), | ||
96 : | FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), | ||
97 : | FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), | ||
98 : | FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), | ||
99 : | FIX(25), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), | ||
100 : | FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45) | ||
101 : | Isibaar | 1.2 | }; |
102 : | |||
103 : | edgomez | 1.8 | uint8_t default_inter_matrix[64] = { |
104 : | edgomez | 1.5 | 16, 17, 18, 19, 20, 21, 22, 23, |
105 : | 17, 18, 19, 20, 21, 22, 23, 24, | ||
106 : | 18, 19, 20, 21, 22, 23, 24, 25, | ||
107 : | 19, 20, 21, 22, 23, 24, 26, 27, | ||
108 : | 20, 21, 22, 23, 25, 26, 27, 28, | ||
109 : | 21, 22, 23, 24, 26, 27, 28, 30, | ||
110 : | 22, 23, 24, 26, 27, 28, 30, 31, | ||
111 : | 23, 24, 25, 27, 28, 30, 31, 33 | ||
112 : | Isibaar | 1.3 | }; |
113 : | |||
114 : | edgomez | 1.7 | int16_t inter_matrix[64] = { |
115 : | edgomez | 1.5 | 16, 17, 18, 19, 20, 21, 22, 23, |
116 : | 17, 18, 19, 20, 21, 22, 23, 24, | ||
117 : | 18, 19, 20, 21, 22, 23, 24, 25, | ||
118 : | 19, 20, 21, 22, 23, 24, 26, 27, | ||
119 : | 20, 21, 22, 23, 25, 26, 27, 28, | ||
120 : | 21, 22, 23, 24, 26, 27, 28, 30, | ||
121 : | 22, 23, 24, 26, 27, 28, 30, 31, | ||
122 : | 23, 24, 25, 27, 28, 30, 31, 33 | ||
123 : | Isibaar | 1.1 | }; |
124 : | |||
125 : | edgomez | 1.7 | int16_t inter_matrix_fix[64] = { |
126 : | edgomez | 1.5 | FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), |
127 : | FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), | ||
128 : | FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25), | ||
129 : | FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), | ||
130 : | FIX(20), FIX(21), FIX(22), FIX(23), FIX(25), FIX(26), FIX(27), FIX(28), | ||
131 : | FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), | ||
132 : | FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), FIX(31), | ||
133 : | FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33) | ||
134 : | Isibaar | 1.2 | }; |
135 : | edgomez | 1.6 | |
136 : | /***************************************************************************** | ||
137 : | * Functions | ||
138 : | ****************************************************************************/ | ||
139 : | Isibaar | 1.2 | |
140 : | edgomez | 1.5 | uint8_t |
141 : | get_intra_matrix_status(void) | ||
142 : | { | ||
143 : | Isibaar | 1.3 | return custom_intra_matrix; |
144 : | Isibaar | 1.2 | } |
145 : | Isibaar | 1.1 | |
146 : | edgomez | 1.5 | uint8_t |
147 : | get_inter_matrix_status(void) | ||
148 : | { | ||
149 : | Isibaar | 1.3 | return custom_inter_matrix; |
150 : | Isibaar | 1.2 | } |
151 : | |||
152 : | edgomez | 1.5 | void |
153 : | set_intra_matrix_status(uint8_t status) | ||
154 : | { | ||
155 : | Isibaar | 1.3 | custom_intra_matrix = status; |
156 : | Isibaar | 1.2 | } |
157 : | Isibaar | 1.1 | |
158 : | edgomez | 1.5 | void |
159 : | set_inter_matrix_status(uint8_t status) | ||
160 : | { | ||
161 : | Isibaar | 1.3 | custom_inter_matrix = status; |
162 : | Isibaar | 1.2 | } |
163 : | Isibaar | 1.1 | |
164 : | edgomez | 1.5 | int16_t * |
165 : | get_intra_matrix(void) | ||
166 : | { | ||
167 : | Isibaar | 1.2 | return intra_matrix; |
168 : | Isibaar | 1.1 | } |
169 : | |||
170 : | edgomez | 1.5 | int16_t * |
171 : | get_inter_matrix(void) | ||
172 : | { | ||
173 : | Isibaar | 1.4 | return inter_matrix; |
174 : | } | ||
175 : | |||
176 : | edgomez | 1.5 | uint8_t * |
177 : | get_default_intra_matrix(void) | ||
178 : | { | ||
179 : | Isibaar | 1.3 | return default_intra_matrix; |
180 : | } | ||
181 : | |||
182 : | edgomez | 1.5 | uint8_t * |
183 : | get_default_inter_matrix(void) | ||
184 : | { | ||
185 : | Isibaar | 1.3 | return default_inter_matrix; |
186 : | Isibaar | 1.2 | } |
187 : | Isibaar | 1.1 | |
188 : | edgomez | 1.5 | uint8_t |
189 : | set_intra_matrix(uint8_t * matrix) | ||
190 : | Isibaar | 1.1 | { |
191 : | Isibaar | 1.3 | int i, change = 0; |
192 : | edgomez | 1.5 | |
193 : | Isibaar | 1.3 | custom_intra_matrix = 0; |
194 : | Isibaar | 1.2 | |
195 : | edgomez | 1.5 | for (i = 0; i < 64; i++) { |
196 : | if ((int16_t) default_intra_matrix[i] != matrix[i]) | ||
197 : | Isibaar | 1.3 | custom_intra_matrix = 1; |
198 : | edgomez | 1.5 | if (intra_matrix[i] != matrix[i]) |
199 : | Isibaar | 1.3 | change = 1; |
200 : | Isibaar | 1.2 | |
201 : | intra_matrix[i] = (int16_t) matrix[i]; | ||
202 : | intra_matrix_fix[i] = FIX(intra_matrix[i]); | ||
203 : | Isibaar | 1.1 | } |
204 : | h | 1.9 | return /*custom_intra_matrix |*/ change; |
205 : | Isibaar | 1.2 | } |
206 : | Isibaar | 1.1 | |
207 : | Isibaar | 1.2 | |
208 : | edgomez | 1.5 | uint8_t |
209 : | set_inter_matrix(uint8_t * matrix) | ||
210 : | Isibaar | 1.2 | { |
211 : | Isibaar | 1.3 | int i, change = 0; |
212 : | edgomez | 1.5 | |
213 : | Isibaar | 1.3 | custom_inter_matrix = 0; |
214 : | Isibaar | 1.2 | |
215 : | edgomez | 1.5 | for (i = 0; i < 64; i++) { |
216 : | if ((int16_t) default_inter_matrix[i] != matrix[i]) | ||
217 : | Isibaar | 1.3 | custom_inter_matrix = 1; |
218 : | edgomez | 1.5 | if (inter_matrix[i] != matrix[i]) |
219 : | Isibaar | 1.3 | change = 1; |
220 : | Isibaar | 1.2 | |
221 : | inter_matrix[i] = (int16_t) matrix[i]; | ||
222 : | inter_matrix_fix[i] = FIX(inter_matrix[i]); | ||
223 : | } | ||
224 : | h | 1.9 | return /*custom_inter_matrix |*/ change; |
225 : | Isibaar | 1.1 | } |
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