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1/*
2** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
3** Copyright (C) 2003 M. Bakker, Ahead Software AG, http://www.nero.com
4**
5** This program is free software; you can redistribute it and/or modify
6** it under the terms of the GNU General Public License as published by
7** the Free Software Foundation; either version 2 of the License, or
8** (at your option) any later version.
9**
10** This program is distributed in the hope that it will be useful,
11** but WITHOUT ANY WARRANTY; without even the implied warranty of
12** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13** GNU General Public License for more details.
14**
15** You should have received a copy of the GNU General Public License
16** along with this program; if not, write to the Free Software
17** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18**
19** Any non-GPL usage of this software or parts of this software is strictly
20** forbidden.
21**
22** Commercial non-GPL licensing of this software is possible.
23** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
24**
25** $Id$
26**/
27
28/* 2-step huffman table HCB_4 */
29
30
31/* 1st step: 5 bits
32 * 2^5 = 32 entries
33 *
34 * Used to find offset into 2nd step table and number of extra bits to get
35 */
36static hcb hcb4_1[] ICONST_ATTR_FAAD_LARGE_IRAM = {
37 /* 4 bit codewords */
38 { /* 00000 */ 0, 0 },
39 { /* */ 0, 0 },
40 { /* 00010 */ 1, 0 },
41 { /* */ 1, 0 },
42 { /* 00100 */ 2, 0 },
43 { /* */ 2, 0 },
44 { /* 00110 */ 3, 0 },
45 { /* */ 3, 0 },
46 { /* 01000 */ 4, 0 },
47 { /* */ 4, 0 },
48 { /* 01010 */ 5, 0 },
49 { /* */ 5, 0 },
50 { /* 01100 */ 6, 0 },
51 { /* */ 6, 0 },
52 { /* 01110 */ 7, 0 },
53 { /* */ 7, 0 },
54 { /* 10000 */ 8, 0 },
55 { /* */ 8, 0 },
56 { /* 10010 */ 9, 0 },
57 { /* */ 9, 0 },
58
59 /* 5 bit codewords */
60 { /* 10100 */ 10, 0 },
61 { /* 10101 */ 11, 0 },
62 { /* 10110 */ 12, 0 },
63 { /* 10111 */ 13, 0 },
64 { /* 11000 */ 14, 0 },
65 { /* 11001 */ 15, 0 },
66
67 /* 7 bit codewords */
68 { /* 11010 */ 16, 2 },
69 { /* 11011 */ 20, 2 },
70
71 /* 7/8 bit codewords */
72 { /* 11100 */ 24, 3 },
73
74 /* 8 bit codewords */
75 { /* 11101 */ 32, 3 },
76
77 /* 8/9 bit codewords */
78 { /* 11110 */ 40, 4 },
79
80 /* 9/10/11/12 bit codewords */
81 { /* 11111 */ 56, 7 }
82};
83
84/* 2nd step table
85 *
86 * Gives size of codeword and actual data (x,y,v,w)
87 */
88static hcb_2_quad hcb4_2[] ICONST_ATTR_FAAD_LARGE_IRAM = {
89 /* 4 bit codewords */
90 { 4, 1, 1, 1, 1 },
91 { 4, 0, 1, 1, 1 },
92 { 4, 1, 1, 0, 1 },
93 { 4, 1, 1, 1, 0 },
94 { 4, 1, 0, 1, 1 },
95 { 4, 1, 0, 0, 0 },
96 { 4, 1, 1, 0, 0 },
97 { 4, 0, 0, 0, 0 },
98 { 4, 0, 0, 1, 1 },
99 { 4, 1, 0, 1, 0 },
100
101 /* 5 bit codewords */
102 { 5, 1, 0, 0, 1 },
103 { 5, 0, 1, 1, 0 },
104 { 5, 0, 0, 0, 1 },
105 { 5, 0, 1, 0, 1 },
106 { 5, 0, 0, 1, 0 },
107 { 5, 0, 1, 0, 0 },
108
109 /* 7 bit codewords */
110 /* first 5 bits: 11010 */
111 { 7, 2, 1, 1, 1 },
112 { 7, 1, 1, 2, 1 },
113 { 7, 1, 2, 1, 1 },
114 { 7, 1, 1, 1, 2 },
115 /* first 5 bits: 11011 */
116 { 7, 2, 1, 1, 0 },
117 { 7, 2, 1, 0, 1 },
118 { 7, 1, 2, 1, 0 },
119 { 7, 2, 0, 1, 1 },
120
121 /* 7/8 bit codewords */
122 /* first 5 bits: 11100 */
123 { 7, 0, 1, 2, 1 }, { 7, 0, 1, 2, 1 },
124 { 8, 0, 1, 1, 2 },
125 { 8, 1, 1, 2, 0 },
126 { 8, 0, 2, 1, 1 },
127 { 8, 1, 0, 1, 2 },
128 { 8, 1, 2, 0, 1 },
129 { 8, 1, 1, 0, 2 },
130
131 /* 8 bit codewords */
132 { 8, 1, 0, 2, 1 },
133 { 8, 2, 1, 0, 0 },
134 { 8, 2, 0, 1, 0 },
135 { 8, 1, 2, 0, 0 },
136 { 8, 2, 0, 0, 1 },
137 { 8, 0, 1, 0, 2 },
138 { 8, 0, 2, 1, 0 },
139 { 8, 0, 0, 1, 2 },
140
141 /* 8/9 bit codewords */
142 { 8, 0, 1, 2, 0 }, { 8, 0, 1, 2, 0 },
143 { 8, 0, 2, 0, 1 }, { 8, 0, 2, 0, 1 },
144 { 8, 1, 0, 0, 2 }, { 8, 1, 0, 0, 2 },
145 { 8, 0, 0, 2, 1 }, { 8, 0, 0, 2, 1 },
146 { 8, 1, 0, 2, 0 }, { 8, 1, 0, 2, 0 },
147 { 8, 2, 0, 0, 0 }, { 8, 2, 0, 0, 0 },
148 { 8, 0, 0, 0, 2 }, { 8, 0, 0, 0, 2 },
149 { 9, 0, 2, 0, 0 },
150 { 9, 0, 0, 2, 0 },
151
152 /* 9/10/11 bit codewords */
153 /* 9 bit codewords repeated 2^3 = 8 times */
154 { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 },
155 { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 },
156 { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 },
157 { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 },
158 { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 },
159 { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 },
160 { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 },
161 { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 },
162 { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 },
163 { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 },
164 { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 },
165 { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 },
166 /* 10 bit codewords repeated 2^2 = 4 times */
167 { 10, 1, 2, 2, 0 }, { 10, 1, 2, 2, 0 }, { 10, 1, 2, 2, 0 }, { 10, 1, 2, 2, 0 },
168 { 10, 2, 2, 1, 0 }, { 10, 2, 2, 1, 0 }, { 10, 2, 2, 1, 0 }, { 10, 2, 2, 1, 0 },
169 { 10, 2, 1, 2, 0 }, { 10, 2, 1, 2, 0 }, { 10, 2, 1, 2, 0 }, { 10, 2, 1, 2, 0 },
170 { 10, 0, 2, 2, 1 }, { 10, 0, 2, 2, 1 }, { 10, 0, 2, 2, 1 }, { 10, 0, 2, 2, 1 },
171 { 10, 0, 1, 2, 2 }, { 10, 0, 1, 2, 2 }, { 10, 0, 1, 2, 2 }, { 10, 0, 1, 2, 2 },
172 { 10, 2, 2, 0, 1 }, { 10, 2, 2, 0, 1 }, { 10, 2, 2, 0, 1 }, { 10, 2, 2, 0, 1 },
173 { 10, 0, 2, 1, 2 }, { 10, 0, 2, 1, 2 }, { 10, 0, 2, 1, 2 }, { 10, 0, 2, 1, 2 },
174 { 10, 2, 0, 2, 1 }, { 10, 2, 0, 2, 1 }, { 10, 2, 0, 2, 1 }, { 10, 2, 0, 2, 1 },
175 { 10, 1, 0, 2, 2 }, { 10, 1, 0, 2, 2 }, { 10, 1, 0, 2, 2 }, { 10, 1, 0, 2, 2 },
176 { 10, 2, 2, 2, 1 }, { 10, 2, 2, 2, 1 }, { 10, 2, 2, 2, 1 }, { 10, 2, 2, 2, 1 },
177 { 10, 1, 2, 0, 2 }, { 10, 1, 2, 0, 2 }, { 10, 1, 2, 0, 2 }, { 10, 1, 2, 0, 2 },
178 { 10, 2, 0, 1, 2 }, { 10, 2, 0, 1, 2 }, { 10, 2, 0, 1, 2 }, { 10, 2, 0, 1, 2 },
179 { 10, 2, 1, 0, 2 }, { 10, 2, 1, 0, 2 }, { 10, 2, 1, 0, 2 }, { 10, 2, 1, 0, 2 },
180 { 10, 1, 2, 2, 2 }, { 10, 1, 2, 2, 2 }, { 10, 1, 2, 2, 2 }, { 10, 1, 2, 2, 2 },
181 /* 11 bit codewords repeated 2^1 = 2 times */
182 { 11, 2, 1, 2, 2 }, { 11, 2, 1, 2, 2 },
183 { 11, 2, 2, 1, 2 }, { 11, 2, 2, 1, 2 },
184 { 11, 0, 2, 2, 0 }, { 11, 0, 2, 2, 0 },
185 { 11, 2, 2, 0, 0 }, { 11, 2, 2, 0, 0 },
186 { 11, 0, 0, 2, 2 }, { 11, 0, 0, 2, 2 },
187 { 11, 2, 0, 2, 0 }, { 11, 2, 0, 2, 0 },
188 { 11, 0, 2, 0, 2 }, { 11, 0, 2, 0, 2 },
189 { 11, 2, 0, 0, 2 }, { 11, 2, 0, 0, 2 },
190 { 11, 2, 2, 2, 2 }, { 11, 2, 2, 2, 2 },
191 { 11, 0, 2, 2, 2 }, { 11, 0, 2, 2, 2 },
192 { 11, 2, 2, 2, 0 }, { 11, 2, 2, 2, 0 },
193 /* 12 bit codewords */
194 { 12, 2, 2, 0, 2 },
195 { 12, 2, 0, 2, 2 },
196};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-07 13:36:57 +0000