/src/ffmpeg/libavcodec/aac/aacdec_tab.c
Line | Count | Source |
1 | | /* |
2 | | * Common code and tables of the AAC fixed- and floating-point decoders |
3 | | * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org ) |
4 | | * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com ) |
5 | | * |
6 | | * This file is part of FFmpeg. |
7 | | * |
8 | | * FFmpeg is free software; you can redistribute it and/or |
9 | | * modify it under the terms of the GNU Lesser General Public |
10 | | * License as published by the Free Software Foundation; either |
11 | | * version 2.1 of the License, or (at your option) any later version. |
12 | | * |
13 | | * FFmpeg is distributed in the hope that it will be useful, |
14 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | | * Lesser General Public License for more details. |
17 | | * |
18 | | * You should have received a copy of the GNU Lesser General Public |
19 | | * License along with FFmpeg; if not, write to the Free Software |
20 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
21 | | */ |
22 | | |
23 | | /** |
24 | | * @file |
25 | | * Common code and tables of the AAC fixed- and floating-point decoders |
26 | | */ |
27 | | |
28 | | #include "aacdec_tab.h" |
29 | | |
30 | | #include "libavcodec/aac.h" |
31 | | #include "libavcodec/aacps.h" |
32 | | #include "libavcodec/aactab.h" |
33 | | #include "libavcodec/vlc.h" |
34 | | |
35 | | #include "libavutil/attributes.h" |
36 | | #include "libavutil/thread.h" |
37 | | |
38 | | const int8_t ff_tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 5, 5, 16, 5, 0 }; |
39 | | |
40 | | const uint8_t ff_aac_channel_layout_map[16][16][3] = { |
41 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, }, |
42 | | { { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, }, |
43 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, }, |
44 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, }, |
45 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, }, |
46 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, }, |
47 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, }, |
48 | | { { 0, } }, |
49 | | { { 0, } }, |
50 | | { { 0, } }, |
51 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, }, |
52 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, }, |
53 | | { |
54 | | { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, // SCE1 = FC, |
55 | | { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, // CPE1 = FLc and FRc, |
56 | | { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, // CPE2 = FL and FR, |
57 | | { TYPE_CPE, 2, AAC_CHANNEL_BACK }, // CPE3 = SiL and SiR, |
58 | | { TYPE_CPE, 3, AAC_CHANNEL_BACK }, // CPE4 = BL and BR, |
59 | | { TYPE_SCE, 1, AAC_CHANNEL_BACK }, // SCE2 = BC, |
60 | | { TYPE_LFE, 0, AAC_CHANNEL_LFE }, // LFE1 = LFE1, |
61 | | { TYPE_LFE, 1, AAC_CHANNEL_LFE }, // LFE2 = LFE2, |
62 | | { TYPE_SCE, 2, AAC_CHANNEL_FRONT }, // SCE3 = TpFC, |
63 | | { TYPE_CPE, 4, AAC_CHANNEL_FRONT }, // CPE5 = TpFL and TpFR, |
64 | | { TYPE_CPE, 5, AAC_CHANNEL_SIDE }, // CPE6 = TpSiL and TpSiR, |
65 | | { TYPE_SCE, 3, AAC_CHANNEL_SIDE }, // SCE4 = TpC, |
66 | | { TYPE_CPE, 6, AAC_CHANNEL_BACK }, // CPE7 = TpBL and TpBR, |
67 | | { TYPE_SCE, 4, AAC_CHANNEL_BACK }, // SCE5 = TpBC, |
68 | | { TYPE_SCE, 5, AAC_CHANNEL_FRONT }, // SCE6 = BtFC, |
69 | | { TYPE_CPE, 7, AAC_CHANNEL_FRONT }, // CPE8 = BtFL and BtFR |
70 | | }, |
71 | | { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE }, { TYPE_CPE, 2, AAC_CHANNEL_FRONT }, }, |
72 | | { { 0, } }, |
73 | | }; |
74 | | |
75 | | const int16_t ff_aac_channel_map[3][4][6] = { |
76 | | { |
77 | | { AV_CHAN_FRONT_CENTER, AV_CHAN_FRONT_LEFT_OF_CENTER, AV_CHAN_FRONT_RIGHT_OF_CENTER, AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_NONE }, |
78 | | { AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE }, |
79 | | { AV_CHAN_UNUSED, AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT, AV_CHAN_BACK_LEFT, AV_CHAN_BACK_RIGHT, AV_CHAN_BACK_CENTER }, |
80 | | { AV_CHAN_LOW_FREQUENCY, AV_CHAN_LOW_FREQUENCY_2, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE }, |
81 | | }, |
82 | | { |
83 | | { AV_CHAN_TOP_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_FRONT_LEFT, AV_CHAN_TOP_FRONT_RIGHT, AV_CHAN_NONE }, |
84 | | { AV_CHAN_UNUSED, AV_CHAN_TOP_SIDE_LEFT, AV_CHAN_TOP_SIDE_RIGHT, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_CENTER}, |
85 | | { AV_CHAN_UNUSED, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_TOP_BACK_LEFT, AV_CHAN_TOP_BACK_RIGHT, AV_CHAN_TOP_BACK_CENTER}, |
86 | | { AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE}, |
87 | | }, |
88 | | { |
89 | | { AV_CHAN_BOTTOM_FRONT_CENTER, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_BOTTOM_FRONT_LEFT, AV_CHAN_BOTTOM_FRONT_RIGHT, AV_CHAN_NONE }, |
90 | | { AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE }, |
91 | | { AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE }, |
92 | | { AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE, AV_CHAN_NONE }, |
93 | | }, |
94 | | }; |
95 | | |
96 | | const AVChannelLayout ff_aac_ch_layout[] = { |
97 | | AV_CHANNEL_LAYOUT_MONO, |
98 | | AV_CHANNEL_LAYOUT_STEREO, |
99 | | AV_CHANNEL_LAYOUT_SURROUND, |
100 | | AV_CHANNEL_LAYOUT_4POINT0, |
101 | | AV_CHANNEL_LAYOUT_5POINT0_BACK, |
102 | | AV_CHANNEL_LAYOUT_5POINT1_BACK, |
103 | | AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK, |
104 | | AV_CHANNEL_LAYOUT_6POINT1_BACK, |
105 | | AV_CHANNEL_LAYOUT_7POINT1, |
106 | | AV_CHANNEL_LAYOUT_22POINT2, |
107 | | AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK, |
108 | | { 0 }, |
109 | | }; |
110 | | |
111 | | VLCElem ff_vlc_scalefactors[352]; |
112 | | const VLCElem *ff_vlc_spectral[11]; |
113 | | |
114 | | /// Huffman tables for SBR |
115 | | |
116 | | static const uint8_t sbr_huffman_tab[][2] = { |
117 | | /* t_huffman_env_1_5dB - 121 entries */ |
118 | | { 60, 2 }, { 59, 2 }, { 61, 3 }, { 58, 3 }, { 62, 4 }, |
119 | | { 57, 4 }, { 63, 5 }, { 56, 5 }, { 64, 6 }, { 55, 6 }, |
120 | | { 65, 7 }, { 54, 7 }, { 66, 8 }, { 53, 8 }, { 67, 9 }, |
121 | | { 52, 9 }, { 51, 10 }, { 68, 10 }, { 50, 11 }, { 69, 12 }, |
122 | | { 49, 12 }, { 70, 13 }, { 48, 13 }, { 47, 13 }, { 71, 14 }, |
123 | | { 46, 14 }, { 72, 14 }, { 45, 14 }, { 44, 15 }, { 73, 15 }, |
124 | | { 41, 16 }, { 42, 16 }, { 43, 16 }, { 74, 16 }, { 36, 16 }, |
125 | | { 40, 16 }, { 76, 16 }, { 34, 17 }, { 39, 17 }, { 75, 17 }, |
126 | | { 37, 17 }, { 35, 18 }, { 38, 18 }, { 0, 18 }, { 1, 18 }, |
127 | | { 2, 18 }, { 3, 18 }, { 4, 18 }, { 5, 18 }, { 6, 19 }, |
128 | | { 7, 19 }, { 8, 19 }, { 9, 19 }, { 10, 19 }, { 11, 19 }, |
129 | | { 12, 19 }, { 13, 19 }, { 14, 19 }, { 15, 19 }, { 16, 19 }, |
130 | | { 17, 19 }, { 18, 19 }, { 19, 19 }, { 20, 19 }, { 21, 19 }, |
131 | | { 22, 19 }, { 23, 19 }, { 24, 19 }, { 25, 19 }, { 26, 19 }, |
132 | | { 27, 19 }, { 28, 19 }, { 29, 19 }, { 30, 19 }, { 31, 19 }, |
133 | | { 32, 19 }, { 33, 19 }, { 77, 19 }, { 78, 19 }, { 79, 19 }, |
134 | | { 80, 19 }, { 81, 19 }, { 82, 19 }, { 83, 19 }, { 84, 19 }, |
135 | | { 85, 19 }, { 86, 19 }, { 87, 19 }, { 88, 19 }, { 89, 19 }, |
136 | | { 90, 19 }, { 91, 19 }, { 92, 19 }, { 93, 19 }, { 94, 19 }, |
137 | | { 95, 19 }, { 96, 19 }, { 97, 19 }, { 98, 19 }, { 99, 19 }, |
138 | | { 100, 19 }, { 101, 19 }, { 102, 19 }, { 103, 19 }, { 104, 19 }, |
139 | | { 105, 19 }, { 106, 19 }, { 107, 19 }, { 108, 19 }, { 109, 19 }, |
140 | | { 110, 19 }, { 111, 19 }, { 112, 19 }, { 113, 19 }, { 114, 19 }, |
141 | | { 115, 19 }, { 116, 19 }, { 117, 19 }, { 118, 19 }, { 119, 19 }, |
142 | | { 120, 19 }, |
143 | | /* f_huffman_env_1_5dB - 121 entries */ |
144 | | { 60, 2 }, { 59, 2 }, { 61, 3 }, { 58, 3 }, { 57, 4 }, |
145 | | { 62, 4 }, { 56, 5 }, { 63, 5 }, { 55, 6 }, { 64, 6 }, |
146 | | { 54, 7 }, { 65, 8 }, { 53, 8 }, { 66, 8 }, { 52, 9 }, |
147 | | { 67, 9 }, { 51, 9 }, { 68, 10 }, { 50, 10 }, { 69, 11 }, |
148 | | { 49, 11 }, { 70, 11 }, { 71, 11 }, { 48, 12 }, { 72, 12 }, |
149 | | { 47, 12 }, { 73, 12 }, { 74, 13 }, { 46, 13 }, { 45, 13 }, |
150 | | { 75, 13 }, { 76, 14 }, { 77, 14 }, { 44, 14 }, { 43, 15 }, |
151 | | { 42, 15 }, { 41, 16 }, { 78, 16 }, { 79, 16 }, { 40, 16 }, |
152 | | { 39, 16 }, { 80, 17 }, { 81, 17 }, { 36, 17 }, { 37, 17 }, |
153 | | { 38, 17 }, { 34, 17 }, { 32, 18 }, { 82, 18 }, { 83, 18 }, |
154 | | { 85, 18 }, { 19, 18 }, { 35, 18 }, { 86, 18 }, { 87, 18 }, |
155 | | { 30, 18 }, { 33, 18 }, { 84, 18 }, { 88, 18 }, { 104, 18 }, |
156 | | { 9, 19 }, { 14, 19 }, { 16, 19 }, { 17, 19 }, { 23, 19 }, |
157 | | { 27, 19 }, { 29, 19 }, { 31, 19 }, { 90, 19 }, { 97, 19 }, |
158 | | { 102, 19 }, { 107, 19 }, { 108, 19 }, { 0, 19 }, { 1, 19 }, |
159 | | { 2, 20 }, { 3, 20 }, { 4, 20 }, { 5, 20 }, { 6, 20 }, |
160 | | { 7, 20 }, { 8, 20 }, { 10, 20 }, { 11, 20 }, { 12, 20 }, |
161 | | { 13, 20 }, { 15, 20 }, { 18, 20 }, { 20, 20 }, { 21, 20 }, |
162 | | { 22, 20 }, { 24, 20 }, { 25, 20 }, { 26, 20 }, { 28, 20 }, |
163 | | { 89, 20 }, { 91, 20 }, { 92, 20 }, { 93, 20 }, { 94, 20 }, |
164 | | { 95, 20 }, { 96, 20 }, { 98, 20 }, { 99, 20 }, { 100, 20 }, |
165 | | { 101, 20 }, { 103, 20 }, { 105, 20 }, { 106, 20 }, { 109, 20 }, |
166 | | { 110, 20 }, { 111, 20 }, { 112, 20 }, { 113, 20 }, { 114, 20 }, |
167 | | { 115, 20 }, { 116, 20 }, { 117, 20 }, { 118, 20 }, { 119, 20 }, |
168 | | { 120, 20 }, |
169 | | /* t_huffman_env_bal_1_5dB - 49 entries */ |
170 | | { 24, 1 }, { 25, 2 }, { 23, 3 }, { 26, 4 }, { 22, 5 }, |
171 | | { 27, 6 }, { 21, 7 }, { 28, 8 }, { 20, 9 }, { 19, 11 }, |
172 | | { 29, 11 }, { 18, 12 }, { 30, 12 }, { 31, 15 }, { 17, 16 }, |
173 | | { 32, 16 }, { 0, 16 }, { 1, 16 }, { 2, 16 }, { 3, 16 }, |
174 | | { 4, 16 }, { 5, 16 }, { 6, 16 }, { 7, 16 }, { 8, 16 }, |
175 | | { 9, 16 }, { 10, 16 }, { 11, 16 }, { 12, 16 }, { 13, 16 }, |
176 | | { 14, 16 }, { 15, 16 }, { 16, 16 }, { 33, 16 }, { 34, 16 }, |
177 | | { 35, 16 }, { 36, 16 }, { 37, 16 }, { 38, 16 }, { 39, 17 }, |
178 | | { 40, 17 }, { 41, 17 }, { 42, 17 }, { 43, 17 }, { 44, 17 }, |
179 | | { 45, 17 }, { 46, 17 }, { 47, 17 }, { 48, 17 }, |
180 | | /* f_huffman_env_bal_1_5dB - 49 entries */ |
181 | | { 24, 1 }, { 23, 2 }, { 25, 3 }, { 22, 4 }, { 26, 5 }, |
182 | | { 27, 6 }, { 21, 7 }, { 20, 8 }, { 28, 9 }, { 19, 11 }, |
183 | | { 29, 11 }, { 18, 11 }, { 30, 12 }, { 17, 14 }, { 31, 15 }, |
184 | | { 32, 16 }, { 15, 16 }, { 16, 17 }, { 0, 18 }, { 1, 18 }, |
185 | | { 2, 18 }, { 3, 18 }, { 4, 18 }, { 5, 18 }, { 6, 18 }, |
186 | | { 7, 18 }, { 8, 18 }, { 9, 18 }, { 10, 18 }, { 11, 18 }, |
187 | | { 12, 18 }, { 13, 18 }, { 14, 18 }, { 33, 18 }, { 34, 18 }, |
188 | | { 35, 18 }, { 36, 18 }, { 37, 18 }, { 38, 18 }, { 39, 18 }, |
189 | | { 40, 18 }, { 41, 18 }, { 42, 18 }, { 43, 18 }, { 44, 18 }, |
190 | | { 45, 18 }, { 46, 18 }, { 47, 19 }, { 48, 19 }, |
191 | | /* t_huffman_env_3_0dB - 63 entries */ |
192 | | { 31, 1 }, { 30, 2 }, { 32, 3 }, { 29, 4 }, { 33, 5 }, |
193 | | { 28, 6 }, { 34, 7 }, { 27, 8 }, { 35, 9 }, { 26, 11 }, |
194 | | { 36, 11 }, { 25, 12 }, { 24, 13 }, { 37, 13 }, { 23, 14 }, |
195 | | { 38, 14 }, { 22, 14 }, { 21, 14 }, { 39, 14 }, { 40, 15 }, |
196 | | { 41, 16 }, { 18, 16 }, { 20, 16 }, { 19, 16 }, { 17, 17 }, |
197 | | { 42, 17 }, { 43, 18 }, { 0, 18 }, { 1, 18 }, { 2, 19 }, |
198 | | { 3, 19 }, { 4, 19 }, { 5, 19 }, { 6, 19 }, { 7, 19 }, |
199 | | { 8, 19 }, { 9, 19 }, { 10, 19 }, { 11, 19 }, { 12, 19 }, |
200 | | { 13, 19 }, { 14, 19 }, { 15, 19 }, { 16, 19 }, { 44, 19 }, |
201 | | { 45, 19 }, { 46, 19 }, { 47, 19 }, { 48, 19 }, { 49, 19 }, |
202 | | { 50, 19 }, { 51, 19 }, { 52, 19 }, { 53, 19 }, { 54, 19 }, |
203 | | { 55, 19 }, { 56, 19 }, { 57, 19 }, { 58, 19 }, { 59, 19 }, |
204 | | { 60, 19 }, { 61, 19 }, { 62, 19 }, |
205 | | /* f_huffman_env_3_0dB - 63 entries */ |
206 | | { 31, 1 }, { 30, 2 }, { 32, 3 }, { 29, 4 }, { 33, 5 }, |
207 | | { 28, 6 }, { 34, 8 }, { 27, 8 }, { 35, 9 }, { 26, 9 }, |
208 | | { 36, 10 }, { 25, 10 }, { 37, 11 }, { 24, 11 }, { 38, 12 }, |
209 | | { 23, 12 }, { 39, 13 }, { 40, 14 }, { 22, 14 }, { 21, 15 }, |
210 | | { 41, 15 }, { 42, 15 }, { 20, 16 }, { 19, 16 }, { 43, 16 }, |
211 | | { 44, 16 }, { 18, 17 }, { 16, 17 }, { 45, 17 }, { 46, 17 }, |
212 | | { 17, 18 }, { 49, 18 }, { 13, 18 }, { 7, 18 }, { 12, 18 }, |
213 | | { 47, 18 }, { 48, 18 }, { 9, 19 }, { 10, 19 }, { 15, 19 }, |
214 | | { 51, 19 }, { 52, 19 }, { 53, 19 }, { 56, 19 }, { 8, 19 }, |
215 | | { 11, 19 }, { 55, 19 }, { 0, 20 }, { 1, 20 }, { 2, 20 }, |
216 | | { 3, 20 }, { 4, 20 }, { 5, 20 }, { 6, 20 }, { 14, 20 }, |
217 | | { 50, 20 }, { 54, 20 }, { 57, 20 }, { 58, 20 }, { 59, 20 }, |
218 | | { 60, 20 }, { 61, 20 }, { 62, 20 }, |
219 | | /* t_huffman_env_bal_3_0dB - 25 entries */ |
220 | | { 12, 1 }, { 13, 2 }, { 11, 3 }, { 10, 4 }, { 14, 5 }, |
221 | | { 15, 6 }, { 9, 7 }, { 8, 8 }, { 16, 9 }, { 7, 12 }, |
222 | | { 0, 13 }, { 1, 13 }, { 2, 13 }, { 3, 13 }, { 4, 13 }, |
223 | | { 5, 13 }, { 6, 13 }, { 17, 13 }, { 18, 13 }, { 19, 13 }, |
224 | | { 20, 13 }, { 21, 13 }, { 22, 13 }, { 23, 14 }, { 24, 14 }, |
225 | | /* f_huffman_env_bal_3_0dB - 25 entries */ |
226 | | { 12, 1 }, { 11, 2 }, { 13, 3 }, { 10, 4 }, { 14, 5 }, |
227 | | { 15, 6 }, { 9, 7 }, { 8, 8 }, { 16, 9 }, { 7, 11 }, |
228 | | { 17, 12 }, { 18, 13 }, { 0, 13 }, { 1, 13 }, { 2, 13 }, |
229 | | { 3, 13 }, { 4, 13 }, { 5, 14 }, { 6, 14 }, { 19, 14 }, |
230 | | { 20, 14 }, { 21, 14 }, { 22, 14 }, { 23, 14 }, { 24, 14 }, |
231 | | /* t_huffman_noise_3_0dB - 63 entries */ |
232 | | { 31, 1 }, { 32, 2 }, { 30, 3 }, { 29, 4 }, { 33, 5 }, |
233 | | { 28, 6 }, { 34, 8 }, { 27, 8 }, { 35, 10 }, { 26, 11 }, |
234 | | { 36, 13 }, { 42, 13 }, { 0, 13 }, { 1, 13 }, { 2, 13 }, |
235 | | { 3, 13 }, { 4, 13 }, { 5, 13 }, { 6, 13 }, { 7, 13 }, |
236 | | { 8, 13 }, { 9, 13 }, { 10, 13 }, { 11, 13 }, { 12, 13 }, |
237 | | { 13, 13 }, { 14, 13 }, { 15, 13 }, { 16, 13 }, { 17, 13 }, |
238 | | { 18, 13 }, { 19, 13 }, { 20, 13 }, { 21, 13 }, { 22, 13 }, |
239 | | { 23, 13 }, { 24, 13 }, { 25, 13 }, { 37, 13 }, { 38, 13 }, |
240 | | { 39, 13 }, { 40, 13 }, { 41, 13 }, { 43, 13 }, { 44, 13 }, |
241 | | { 45, 13 }, { 46, 13 }, { 47, 13 }, { 48, 13 }, { 49, 13 }, |
242 | | { 50, 13 }, { 51, 13 }, { 52, 13 }, { 53, 13 }, { 54, 13 }, |
243 | | { 55, 13 }, { 56, 13 }, { 57, 13 }, { 58, 13 }, { 59, 13 }, |
244 | | { 60, 13 }, { 61, 14 }, { 62, 14 }, |
245 | | /* t_huffman_noise_bal_3_0dB - 25 entries */ |
246 | | { 12, 1 }, { 11, 2 }, { 13, 3 }, { 10, 5 }, { 14, 6 }, |
247 | | { 0, 8 }, { 1, 8 }, { 2, 8 }, { 3, 8 }, { 4, 8 }, |
248 | | { 5, 8 }, { 6, 8 }, { 7, 8 }, { 8, 8 }, { 9, 8 }, |
249 | | { 15, 8 }, { 16, 8 }, { 17, 8 }, { 18, 8 }, { 19, 8 }, |
250 | | { 20, 8 }, { 21, 8 }, { 22, 8 }, { 23, 8 }, { 24, 8 }, |
251 | | }; |
252 | | |
253 | | static const uint8_t sbr_huffman_nb_codes[] = { |
254 | | 121, 121, 49, 49, 63, 63, 25, 25, 63, 25 |
255 | | }; |
256 | | |
257 | | static const int8_t sbr_vlc_offsets[10] = { |
258 | | -60, -60, -24, -24, -31, -31, -12, -12, -31, -12 |
259 | | }; |
260 | | |
261 | | const VLCElem *ff_aac_sbr_vlc[10]; |
262 | | |
263 | | static av_cold void aacdec_common_init(void) |
264 | 3 | { |
265 | 3 | static VLCElem vlc_buf[(304 + 270 + 550 + 300 + 328 + |
266 | 3 | 294 + 306 + 268 + 510 + 366 + 462) + |
267 | 3 | (1098 + 1092 + 768 + 1026 + 1058 + |
268 | 3 | 1052 + 544 + 544 + 592 + 512)]; |
269 | 3 | VLCInitState state = VLC_INIT_STATE(vlc_buf); |
270 | 3 | const uint8_t (*tab)[2] = sbr_huffman_tab; |
271 | | |
272 | 36 | for (unsigned i = 0; i < 11; i++) { |
273 | 99 | #define TAB_WRAP_SIZE(name) name[i], sizeof(name[i][0]), sizeof(name[i][0]) |
274 | 33 | ff_vlc_spectral[i] = |
275 | 33 | ff_vlc_init_tables_sparse(&state, 8, ff_aac_spectral_sizes[i], |
276 | 33 | TAB_WRAP_SIZE(ff_aac_spectral_bits), |
277 | 33 | TAB_WRAP_SIZE(ff_aac_spectral_codes), |
278 | 33 | TAB_WRAP_SIZE(ff_aac_codebook_vector_idx), |
279 | 33 | 0); |
280 | 33 | } |
281 | | |
282 | 3 | VLC_INIT_STATIC_TABLE(ff_vlc_scalefactors, 7, |
283 | 3 | FF_ARRAY_ELEMS(ff_aac_scalefactor_code), |
284 | 3 | ff_aac_scalefactor_bits, |
285 | 3 | sizeof(ff_aac_scalefactor_bits[0]), |
286 | 3 | sizeof(ff_aac_scalefactor_bits[0]), |
287 | 3 | ff_aac_scalefactor_code, |
288 | 3 | sizeof(ff_aac_scalefactor_code[0]), |
289 | 3 | sizeof(ff_aac_scalefactor_code[0]), 0); |
290 | | |
291 | | // SBR VLC table initialization |
292 | 33 | for (int i = 0; i < FF_ARRAY_ELEMS(ff_aac_sbr_vlc); i++) { |
293 | 30 | ff_aac_sbr_vlc[i] = |
294 | 30 | ff_vlc_init_tables_from_lengths(&state, 9, sbr_huffman_nb_codes[i], |
295 | 30 | &tab[0][1], 2, |
296 | 30 | &tab[0][0], 2, 1, |
297 | 30 | sbr_vlc_offsets[i], 0); |
298 | 30 | tab += sbr_huffman_nb_codes[i]; |
299 | 30 | } |
300 | | |
301 | 3 | ff_ps_init_common(); |
302 | 3 | } |
303 | | |
304 | | av_cold void ff_aacdec_common_init_once(void) |
305 | 20.4k | { |
306 | 20.4k | static AVOnce init_static_once = AV_ONCE_INIT; |
307 | 20.4k | ff_thread_once(&init_static_once, aacdec_common_init); |
308 | 20.4k | } |