FFmpeg
aacpsdata.c
Go to the documentation of this file.
1 /*
2  * MPEG-4 Parametric Stereo data tables
3  * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <stdint.h>
23 
24 static const uint8_t huff_sizes[] = { 61, 61, 29, 29, 15, 15, 8, 8, 8, 8 };
25 
26 static const uint8_t aacps_huff_tabs[][2] = {
27  /* huff_iid_df1 - 61 entries */
28  { 28, 4 }, { 32, 4 }, { 29, 3 }, { 31, 3 }, { 27, 5 },
29  { 33, 5 }, { 26, 6 }, { 34, 6 }, { 25, 7 }, { 35, 7 },
30  { 24, 8 }, { 36, 8 }, { 37, 9 }, { 40, 11 }, { 19, 12 },
31  { 41, 12 }, { 22, 10 }, { 38, 10 }, { 9, 17 }, { 51, 17 },
32  { 11, 17 }, { 49, 17 }, { 13, 16 }, { 47, 16 }, { 16, 14 },
33  { 18, 13 }, { 42, 13 }, { 44, 14 }, { 12, 17 }, { 48, 17 },
34  { 4, 18 }, { 5, 18 }, { 2, 18 }, { 3, 18 }, { 15, 15 },
35  { 21, 11 }, { 39, 11 }, { 45, 15 }, { 8, 18 }, { 52, 18 },
36  { 6, 18 }, { 7, 18 }, { 55, 18 }, { 56, 18 }, { 53, 18 },
37  { 54, 18 }, { 17, 14 }, { 43, 14 }, { 59, 18 }, { 60, 18 },
38  { 57, 18 }, { 58, 18 }, { 0, 18 }, { 1, 18 }, { 10, 18 },
39  { 50, 18 }, { 14, 16 }, { 46, 16 }, { 20, 12 }, { 23, 10 },
40  { 30, 1 },
41  /* huff_iid_dt1 - 61 entries */
42  { 31, 2 }, { 26, 7 }, { 34, 7 }, { 27, 6 }, { 33, 6 },
43  { 35, 8 }, { 24, 9 }, { 36, 9 }, { 39, 11 }, { 41, 12 },
44  { 9, 15 }, { 10, 15 }, { 48, 15 }, { 49, 15 }, { 17, 13 },
45  { 23, 10 }, { 37, 10 }, { 43, 13 }, { 11, 15 }, { 12, 15 },
46  { 4, 16 }, { 56, 16 }, { 2, 16 }, { 3, 16 }, { 59, 16 },
47  { 60, 16 }, { 57, 16 }, { 58, 16 }, { 0, 16 }, { 1, 16 },
48  { 5, 16 }, { 55, 16 }, { 6, 16 }, { 54, 16 }, { 13, 15 },
49  { 15, 14 }, { 20, 12 }, { 40, 12 }, { 22, 11 }, { 38, 11 },
50  { 45, 14 }, { 47, 15 }, { 7, 16 }, { 53, 16 }, { 18, 13 },
51  { 42, 13 }, { 16, 14 }, { 44, 14 }, { 8, 16 }, { 52, 16 },
52  { 14, 15 }, { 46, 15 }, { 50, 16 }, { 51, 16 }, { 19, 13 },
53  { 21, 12 }, { 25, 9 }, { 28, 5 }, { 32, 5 }, { 29, 3 },
54  { 30, 1 },
55  /* huff_iid_df0 - 29 entries */
56  { 14, 1 }, { 15, 3 }, { 13, 3 }, { 16, 4 }, { 12, 4 },
57  { 17, 5 }, { 11, 5 }, { 10, 6 }, { 18, 6 }, { 19, 6 },
58  { 9, 7 }, { 20, 8 }, { 8, 9 }, { 7, 10 }, { 21, 11 },
59  { 22, 13 }, { 6, 13 }, { 23, 14 }, { 24, 14 }, { 5, 15 },
60  { 25, 15 }, { 4, 16 }, { 3, 17 }, { 0, 17 }, { 1, 17 },
61  { 2, 17 }, { 26, 17 }, { 27, 18 }, { 28, 18 },
62  /* huff_iid_dt0 - 29 entries */
63  { 14, 1 }, { 13, 2 }, { 15, 3 }, { 12, 4 }, { 16, 5 },
64  { 11, 6 }, { 17, 7 }, { 10, 8 }, { 18, 9 }, { 9, 10 },
65  { 19, 11 }, { 8, 12 }, { 20, 13 }, { 21, 14 }, { 7, 15 },
66  { 22, 17 }, { 6, 17 }, { 23, 19 }, { 0, 19 }, { 1, 19 },
67  { 2, 19 }, { 3, 20 }, { 4, 20 }, { 5, 20 }, { 24, 20 },
68  { 25, 20 }, { 26, 20 }, { 27, 20 }, { 28, 20 },
69  /* huff_icc_df - 15 entries */
70  { 7, 1 }, { 8, 2 }, { 6, 3 }, { 9, 4 }, { 5, 5 },
71  { 10, 6 }, { 4, 7 }, { 11, 8 }, { 12, 9 }, { 3, 10 },
72  { 13, 11 }, { 2, 12 }, { 14, 13 }, { 1, 14 }, { 0, 14 },
73  /* huff_icc_dt - 15 entries */
74  { 7, 1 }, { 8, 2 }, { 6, 3 }, { 9, 4 }, { 5, 5 },
75  { 10, 6 }, { 4, 7 }, { 11, 8 }, { 3, 9 }, { 12, 10 },
76  { 2, 11 }, { 13, 12 }, { 1, 13 }, { 0, 14 }, { 14, 14 },
77  /* huff_ipd_df - 8 entries */
78  { 1, 3 }, { 4, 4 }, { 5, 4 }, { 3, 4 }, { 6, 4 },
79  { 2, 4 }, { 7, 4 }, { 0, 1 },
80  /* huff_ipd_dt - 8 entries */
81  { 5, 4 }, { 4, 5 }, { 3, 5 }, { 2, 4 }, { 6, 4 },
82  { 1, 3 }, { 7, 3 }, { 0, 1 },
83  /* huff_opd_df - 8 entries */
84  { 7, 3 }, { 1, 3 }, { 3, 4 }, { 6, 4 }, { 2, 4 },
85  { 5, 5 }, { 4, 5 }, { 0, 1 },
86  /* huff_opd_dt - 8 entries */
87  { 5, 4 }, { 2, 4 }, { 6, 4 }, { 4, 5 }, { 3, 5 },
88  { 1, 3 }, { 7, 3 }, { 0, 1 },
89 };
90 
91 static const int8_t huff_offset[] = {
92  -30, -30,
93  -14, -14,
94  -7, -7,
95  0, 0,
96  0, 0,
97 };
98 
99 ///Table 8.48
100 const int8_t ff_k_to_i_20[] = {
101  1, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 14, 15,
102  15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18,
103  18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
104  19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19
105 };
106 ///Table 8.49
107 const int8_t ff_k_to_i_34[] = {
108  0, 1, 2, 3, 4, 5, 6, 6, 7, 2, 1, 0, 10, 10, 4, 5, 6, 7, 8,
109  9, 10, 11, 12, 9, 14, 11, 12, 13, 14, 15, 16, 13, 16, 17, 18, 19, 20, 21,
110  22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 28, 29, 29, 29,
111  30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33,
112  33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33
113 };
ff_k_to_i_20
const int8_t ff_k_to_i_20[]
Table 8.48.
Definition: aacpsdata.c:100
huff_sizes
static const uint8_t huff_sizes[]
Definition: aacpsdata.c:24
huff_offset
static const int8_t huff_offset[]
Definition: aacpsdata.c:91
aacps_huff_tabs
static const uint8_t aacps_huff_tabs[][2]
Definition: aacpsdata.c:26
ff_k_to_i_34
const int8_t ff_k_to_i_34[]
Table 8.49.
Definition: aacpsdata.c:107
Generated on Fri Nov 8 2024 19:21:28 for FFmpeg by   doxygen 1.8.17