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1 : | edgomez | 1.6 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - Custom matrix quantization functions - | ||
5 : | * | ||
6 : | * Copyright(C) 2002 Michael Militzer | ||
7 : | * | ||
8 : | * This program is an implementation of a part of one or more MPEG-4 | ||
9 : | * Video tools as specified in ISO/IEC 14496-2 standard. Those intending | ||
10 : | * to use this software module in hardware or software products are | ||
11 : | * advised that its use may infringe existing patents or copyrights, and | ||
12 : | * any such use would be at such party's own risk. The original | ||
13 : | * developer of this software module and his/her company, and subsequent | ||
14 : | * editors and their companies, will have no liability for use of this | ||
15 : | * software or modifications or derivatives thereof. | ||
16 : | * | ||
17 : | * This program is free software ; you can redistribute it and/or modify | ||
18 : | * it under the terms of the GNU General Public License as published by | ||
19 : | * the Free Software Foundation ; either version 2 of the License, or | ||
20 : | * (at your option) any later version. | ||
21 : | * | ||
22 : | * This program is distributed in the hope that it will be useful, | ||
23 : | * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
24 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
25 : | * GNU General Public License for more details. | ||
26 : | * | ||
27 : | * You should have received a copy of the GNU General Public License | ||
28 : | * along with this program ; if not, write to the Free Software | ||
29 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
30 : | * | ||
31 : | h | 1.9 | * $Id: quant_matrix.c,v 1.8 2002/09/08 17:28:22 edgomez Exp $ |
32 : | edgomez | 1.6 | * |
33 : | ****************************************************************************/ | ||
34 : | |||
35 : | Isibaar | 1.2 | #include "quant_matrix.h" |
36 : | Isibaar | 1.1 | |
37 : | Isibaar | 1.2 | #define FIX(X) (1 << 16) / (X) + 1 |
38 : | Isibaar | 1.1 | |
39 : | edgomez | 1.6 | /***************************************************************************** |
40 : | * Local data | ||
41 : | ****************************************************************************/ | ||
42 : | |||
43 : | /* ToDo : remove all this local to make this module thread safe */ | ||
44 : | Isibaar | 1.3 | uint8_t custom_intra_matrix = 0; |
45 : | uint8_t custom_inter_matrix = 0; | ||
46 : | |||
47 : | edgomez | 1.8 | uint8_t default_intra_matrix[64] = { |
48 : | edgomez | 1.5 | 8, 17, 18, 19, 21, 23, 25, 27, |
49 : | 17, 18, 19, 21, 23, 25, 27, 28, | ||
50 : | 20, 21, 22, 23, 24, 26, 28, 30, | ||
51 : | 21, 22, 23, 24, 26, 28, 30, 32, | ||
52 : | 22, 23, 24, 26, 28, 30, 32, 35, | ||
53 : | 23, 24, 26, 28, 30, 32, 35, 38, | ||
54 : | 25, 26, 28, 30, 32, 35, 38, 41, | ||
55 : | 27, 28, 30, 32, 35, 38, 41, 45 | ||
56 : | Isibaar | 1.3 | }; |
57 : | Isibaar | 1.1 | |
58 : | edgomez | 1.7 | int16_t intra_matrix[64] = { |
59 : | edgomez | 1.5 | 8, 17, 18, 19, 21, 23, 25, 27, |
60 : | 17, 18, 19, 21, 23, 25, 27, 28, | ||
61 : | 20, 21, 22, 23, 24, 26, 28, 30, | ||
62 : | 21, 22, 23, 24, 26, 28, 30, 32, | ||
63 : | 22, 23, 24, 26, 28, 30, 32, 35, | ||
64 : | 23, 24, 26, 28, 30, 32, 35, 38, | ||
65 : | 25, 26, 28, 30, 32, 35, 38, 41, | ||
66 : | 27, 28, 30, 32, 35, 38, 41, 45 | ||
67 : | Isibaar | 1.1 | }; |
68 : | |||
69 : | edgomez | 1.7 | int16_t intra_matrix_fix[64] = { |
70 : | edgomez | 1.5 | FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), |
71 : | FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28), | ||
72 : | FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), | ||
73 : | FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), | ||
74 : | FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), | ||
75 : | FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), | ||
76 : | FIX(25), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), | ||
77 : | FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45) | ||
78 : | Isibaar | 1.2 | }; |
79 : | |||
80 : | edgomez | 1.8 | uint8_t default_inter_matrix[64] = { |
81 : | edgomez | 1.5 | 16, 17, 18, 19, 20, 21, 22, 23, |
82 : | 17, 18, 19, 20, 21, 22, 23, 24, | ||
83 : | 18, 19, 20, 21, 22, 23, 24, 25, | ||
84 : | 19, 20, 21, 22, 23, 24, 26, 27, | ||
85 : | 20, 21, 22, 23, 25, 26, 27, 28, | ||
86 : | 21, 22, 23, 24, 26, 27, 28, 30, | ||
87 : | 22, 23, 24, 26, 27, 28, 30, 31, | ||
88 : | 23, 24, 25, 27, 28, 30, 31, 33 | ||
89 : | Isibaar | 1.3 | }; |
90 : | |||
91 : | edgomez | 1.7 | int16_t inter_matrix[64] = { |
92 : | edgomez | 1.5 | 16, 17, 18, 19, 20, 21, 22, 23, |
93 : | 17, 18, 19, 20, 21, 22, 23, 24, | ||
94 : | 18, 19, 20, 21, 22, 23, 24, 25, | ||
95 : | 19, 20, 21, 22, 23, 24, 26, 27, | ||
96 : | 20, 21, 22, 23, 25, 26, 27, 28, | ||
97 : | 21, 22, 23, 24, 26, 27, 28, 30, | ||
98 : | 22, 23, 24, 26, 27, 28, 30, 31, | ||
99 : | 23, 24, 25, 27, 28, 30, 31, 33 | ||
100 : | Isibaar | 1.1 | }; |
101 : | |||
102 : | edgomez | 1.7 | int16_t inter_matrix_fix[64] = { |
103 : | edgomez | 1.5 | FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), |
104 : | FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), | ||
105 : | FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25), | ||
106 : | FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), | ||
107 : | FIX(20), FIX(21), FIX(22), FIX(23), FIX(25), FIX(26), FIX(27), FIX(28), | ||
108 : | FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), | ||
109 : | FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), FIX(31), | ||
110 : | FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33) | ||
111 : | Isibaar | 1.2 | }; |
112 : | edgomez | 1.6 | |
113 : | /***************************************************************************** | ||
114 : | * Functions | ||
115 : | ****************************************************************************/ | ||
116 : | Isibaar | 1.2 | |
117 : | edgomez | 1.5 | uint8_t |
118 : | get_intra_matrix_status(void) | ||
119 : | { | ||
120 : | Isibaar | 1.3 | return custom_intra_matrix; |
121 : | Isibaar | 1.2 | } |
122 : | Isibaar | 1.1 | |
123 : | edgomez | 1.5 | uint8_t |
124 : | get_inter_matrix_status(void) | ||
125 : | { | ||
126 : | Isibaar | 1.3 | return custom_inter_matrix; |
127 : | Isibaar | 1.2 | } |
128 : | |||
129 : | edgomez | 1.5 | void |
130 : | set_intra_matrix_status(uint8_t status) | ||
131 : | { | ||
132 : | Isibaar | 1.3 | custom_intra_matrix = status; |
133 : | Isibaar | 1.2 | } |
134 : | Isibaar | 1.1 | |
135 : | edgomez | 1.5 | void |
136 : | set_inter_matrix_status(uint8_t status) | ||
137 : | { | ||
138 : | Isibaar | 1.3 | custom_inter_matrix = status; |
139 : | Isibaar | 1.2 | } |
140 : | Isibaar | 1.1 | |
141 : | edgomez | 1.5 | int16_t * |
142 : | get_intra_matrix(void) | ||
143 : | { | ||
144 : | Isibaar | 1.2 | return intra_matrix; |
145 : | Isibaar | 1.1 | } |
146 : | |||
147 : | edgomez | 1.5 | int16_t * |
148 : | get_inter_matrix(void) | ||
149 : | { | ||
150 : | Isibaar | 1.4 | return inter_matrix; |
151 : | } | ||
152 : | |||
153 : | edgomez | 1.5 | uint8_t * |
154 : | get_default_intra_matrix(void) | ||
155 : | { | ||
156 : | Isibaar | 1.3 | return default_intra_matrix; |
157 : | } | ||
158 : | |||
159 : | edgomez | 1.5 | uint8_t * |
160 : | get_default_inter_matrix(void) | ||
161 : | { | ||
162 : | Isibaar | 1.3 | return default_inter_matrix; |
163 : | Isibaar | 1.2 | } |
164 : | Isibaar | 1.1 | |
165 : | edgomez | 1.5 | uint8_t |
166 : | set_intra_matrix(uint8_t * matrix) | ||
167 : | Isibaar | 1.1 | { |
168 : | Isibaar | 1.3 | int i, change = 0; |
169 : | edgomez | 1.5 | |
170 : | Isibaar | 1.3 | custom_intra_matrix = 0; |
171 : | Isibaar | 1.2 | |
172 : | edgomez | 1.5 | for (i = 0; i < 64; i++) { |
173 : | if ((int16_t) default_intra_matrix[i] != matrix[i]) | ||
174 : | Isibaar | 1.3 | custom_intra_matrix = 1; |
175 : | edgomez | 1.5 | if (intra_matrix[i] != matrix[i]) |
176 : | Isibaar | 1.3 | change = 1; |
177 : | Isibaar | 1.2 | |
178 : | intra_matrix[i] = (int16_t) matrix[i]; | ||
179 : | intra_matrix_fix[i] = FIX(intra_matrix[i]); | ||
180 : | Isibaar | 1.1 | } |
181 : | h | 1.9 | return /*custom_intra_matrix |*/ change; |
182 : | Isibaar | 1.2 | } |
183 : | Isibaar | 1.1 | |
184 : | Isibaar | 1.2 | |
185 : | edgomez | 1.5 | uint8_t |
186 : | set_inter_matrix(uint8_t * matrix) | ||
187 : | Isibaar | 1.2 | { |
188 : | Isibaar | 1.3 | int i, change = 0; |
189 : | edgomez | 1.5 | |
190 : | Isibaar | 1.3 | custom_inter_matrix = 0; |
191 : | Isibaar | 1.2 | |
192 : | edgomez | 1.5 | for (i = 0; i < 64; i++) { |
193 : | if ((int16_t) default_inter_matrix[i] != matrix[i]) | ||
194 : | Isibaar | 1.3 | custom_inter_matrix = 1; |
195 : | edgomez | 1.5 | if (inter_matrix[i] != matrix[i]) |
196 : | Isibaar | 1.3 | change = 1; |
197 : | Isibaar | 1.2 | |
198 : | inter_matrix[i] = (int16_t) matrix[i]; | ||
199 : | inter_matrix_fix[i] = FIX(inter_matrix[i]); | ||
200 : | } | ||
201 : | h | 1.9 | return /*custom_inter_matrix |*/ change; |
202 : | Isibaar | 1.1 | } |
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