Add support for AMR-WB encoding via libvo-amrwbenc
[ffmpeg.git] / libavcodec / atrac3data.h
1 /*
2  * Atrac 3 compatible decoder data
3  * Copyright (c) 2006-2007 Maxim Poliakovski
4  * Copyright (c) 2006-2007 Benjamin Larsson
5  *
6  * This file is part of Libav.
7  *
8  * Libav 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  * Libav 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 Libav; 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  * Atrac 3 AKA RealAudio 8 compatible decoder data
26  */
27
28 #ifndef AVCODEC_ATRAC3DATA_H
29 #define AVCODEC_ATRAC3DATA_H
30
31 #include <stdint.h>
32
33 /* VLC tables */
34
35 static const uint8_t huffcode1[9] = {
36   0x0,0x4,0x5,0xC,0xD,0x1C,0x1D,0x1E,0x1F,
37 };
38
39 static const uint8_t huffbits1[9] = {
40   1,3,3,4,4,5,5,5,5,
41 };
42
43 static const uint8_t huffcode2[5] = {
44   0x0,0x4,0x5,0x6,0x7,
45 };
46
47 static const uint8_t huffbits2[5] = {
48   1,3,3,3,3,
49 };
50
51 static const uint8_t huffcode3[7] = {
52 0x0,0x4,0x5,0xC,0xD,0xE,0xF,
53 };
54
55 static const uint8_t huffbits3[7] = {
56   1,3,3,4,4,4,4,
57 };
58
59 static const uint8_t huffcode4[9] = {
60   0x0,0x4,0x5,0xC,0xD,0x1C,0x1D,0x1E,0x1F,
61 };
62
63 static const uint8_t huffbits4[9] = {
64   1,3,3,4,4,5,5,5,5,
65 };
66
67 static const uint8_t huffcode5[15] = {
68   0x0,0x2,0x3,0x8,0x9,0xA,0xB,0x1C,0x1D,0x3C,0x3D,0x3E,0x3F,0xC,0xD,
69 };
70
71 static const uint8_t huffbits5[15] = {
72   2,3,3,4,4,4,4,5,5,6,6,6,6,4,4
73 };
74
75 static const uint8_t huffcode6[31] = {
76   0x0,0x2,0x3,0x4,0x5,0x6,0x7,0x14,0x15,0x16,0x17,0x18,0x19,0x34,0x35,
77   0x36,0x37,0x38,0x39,0x3A,0x3B,0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,0x8,0x9,
78 };
79
80 static const uint8_t huffbits6[31] = {
81   3,4,4,4,4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,4,4
82 };
83
84 static const uint8_t huffcode7[63] = {
85   0x0,0x8,0x9,0xA,0xB,0xC,0xD,0xE,0xF,0x10,0x11,0x24,0x25,0x26,0x27,0x28,
86   0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x68,0x69,0x6A,0x6B,0x6C,
87   0x6D,0x6E,0x6F,0x70,0x71,0x72,0x73,0x74,0x75,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,0xF2,
88   0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x2,0x3,
89 };
90
91 static const uint8_t huffbits7[63] = {
92   3,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,
93   7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,4,4
94 };
95
96 static const uint8_t huff_tab_sizes[7] = {
97   9, 5, 7, 9, 15, 31, 63,
98 };
99
100 static const uint8_t* const huff_codes[7] = {
101   huffcode1,huffcode2,huffcode3,huffcode4,huffcode5,huffcode6,huffcode7,
102 };
103
104 static const uint8_t* const huff_bits[7] = {
105   huffbits1,huffbits2,huffbits3,huffbits4,huffbits5,huffbits6,huffbits7,
106 };
107
108 static const uint16_t atrac3_vlc_offs[] = {
109     0,512,1024,1536,2048,2560,3072,3584,4096
110 };
111
112 /* selector tables */
113
114 static const uint8_t CLCLengthTab[8] = {0, 4, 3, 3, 4, 4, 5, 6};
115 static const int8_t seTab_0[4] = {0, 1, -2, -1};
116 static const int8_t decTable1[18] = {0,0, 0,1, 0,-1, 1,0, -1,0, 1,1, 1,-1, -1,1, -1,-1};
117
118
119 /* tables for the scalefactor decoding */
120
121 static const float iMaxQuant[8] = {
122   0.0, 1.0/1.5, 1.0/2.5, 1.0/3.5, 1.0/4.5, 1.0/7.5, 1.0/15.5, 1.0/31.5
123 };
124
125 static const uint16_t subbandTab[33] = {
126   0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224,
127   256, 288, 320, 352, 384, 416, 448, 480, 512, 576, 640, 704, 768, 896, 1024
128 };
129
130 /* joint stereo related tables */
131 static const float matrixCoeffs[8] = {0.0, 2.0, 2.0, 2.0, 0.0, 0.0, 1.0, 1.0};
132
133 #endif /* AVCODEC_ATRAC3DATA_H */