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Diffstat (limited to 'apps/codecs/libtta/ttadec.h')
-rw-r--r-- | apps/codecs/libtta/ttadec.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/apps/codecs/libtta/ttadec.h b/apps/codecs/libtta/ttadec.h new file mode 100644 index 0000000000..43affd952b --- /dev/null +++ b/apps/codecs/libtta/ttadec.h | |||
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1 | /* | ||
2 | * ttadec.h | ||
3 | * | ||
4 | * Description: TTAv1 decoder definitions and prototypes | ||
5 | * Developed by: Alexander Djourik <ald@true-audio.com> | ||
6 | * Pavel Zhilin <pzh@true-audio.com> | ||
7 | * | ||
8 | * Copyright (c) 2004 True Audio Software. All rights reserved. | ||
9 | * | ||
10 | */ | ||
11 | |||
12 | /* | ||
13 | * Redistribution and use in source and binary forms, with or without | ||
14 | * modification, are permitted provided that the following conditions | ||
15 | * are met: | ||
16 | * | ||
17 | * 1. Redistributions of source code must retain the above copyright | ||
18 | * notice, this list of conditions and the following disclaimer. | ||
19 | * 2. Redistributions in binary form must reproduce the above copyright | ||
20 | * notice, this list of conditions and the following disclaimer in the | ||
21 | * documentation and/or other materials provided with the distribution. | ||
22 | * 3. Neither the name of the True Audio Software nor the names of its | ||
23 | * contributors may be used to endorse or promote products derived | ||
24 | * from this software without specific prior written permission. | ||
25 | * | ||
26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
27 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
28 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
29 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
30 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
31 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
32 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
33 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
34 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
35 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
36 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
37 | */ | ||
38 | |||
39 | #ifndef TTADEC_H_ | ||
40 | #define TTADEC_H_ | ||
41 | |||
42 | #define __ATTRIBUTE_PACKED__ __attribute__((packed)) | ||
43 | |||
44 | #define TTA1_SIGN 0x31415454 | ||
45 | #define MAX_ORDER 8 | ||
46 | |||
47 | #ifndef WAVE_FORMAT_PCM | ||
48 | #define WAVE_FORMAT_PCM 1 | ||
49 | #endif | ||
50 | |||
51 | typedef unsigned long long uint64; | ||
52 | |||
53 | static const unsigned int crc32_table[256] ICONST_ATTR = { | ||
54 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, | ||
55 | 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, | ||
56 | 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, | ||
57 | 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, | ||
58 | 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | ||
59 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, | ||
60 | 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, | ||
61 | 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, | ||
62 | 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, | ||
63 | 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | ||
64 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, | ||
65 | 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, | ||
66 | 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, | ||
67 | 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, | ||
68 | 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | ||
69 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, | ||
70 | 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, | ||
71 | 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, | ||
72 | 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, | ||
73 | 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | ||
74 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, | ||
75 | 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, | ||
76 | 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, | ||
77 | 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, | ||
78 | 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | ||
79 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, | ||
80 | 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, | ||
81 | 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, | ||
82 | 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, | ||
83 | 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | ||
84 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, | ||
85 | 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, | ||
86 | 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, | ||
87 | 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, | ||
88 | 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | ||
89 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, | ||
90 | 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, | ||
91 | 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, | ||
92 | 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, | ||
93 | 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | ||
94 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, | ||
95 | 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, | ||
96 | 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, | ||
97 | 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, | ||
98 | 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | ||
99 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, | ||
100 | 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, | ||
101 | 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, | ||
102 | 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, | ||
103 | 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | ||
104 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, | ||
105 | 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, | ||
106 | 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, | ||
107 | 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, | ||
108 | 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | ||
109 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, | ||
110 | 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, | ||
111 | 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, | ||
112 | 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, | ||
113 | 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | ||
114 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, | ||
115 | 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, | ||
116 | 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, | ||
117 | 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d | ||
118 | }; | ||
119 | |||
120 | static const unsigned int bit_mask[] ICONST_ATTR = { | ||
121 | 0x00000000, 0x00000001, 0x00000003, 0x00000007, | ||
122 | 0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f, | ||
123 | 0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff, | ||
124 | 0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff, | ||
125 | 0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff, | ||
126 | 0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff, | ||
127 | 0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff, | ||
128 | 0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff, | ||
129 | 0xffffffff | ||
130 | }; | ||
131 | |||
132 | static const unsigned int bit_shift[] ICONST_ATTR = { | ||
133 | 0x00000001, 0x00000002, 0x00000004, 0x00000008, | ||
134 | 0x00000010, 0x00000020, 0x00000040, 0x00000080, | ||
135 | 0x00000100, 0x00000200, 0x00000400, 0x00000800, | ||
136 | 0x00001000, 0x00002000, 0x00004000, 0x00008000, | ||
137 | 0x00010000, 0x00020000, 0x00040000, 0x00080000, | ||
138 | 0x00100000, 0x00200000, 0x00400000, 0x00800000, | ||
139 | 0x01000000, 0x02000000, 0x04000000, 0x08000000, | ||
140 | 0x10000000, 0x20000000, 0x40000000, 0x80000000, | ||
141 | 0x80000000, 0x80000000, 0x80000000, 0x80000000, | ||
142 | 0x80000000, 0x80000000, 0x80000000, 0x80000000 | ||
143 | }; | ||
144 | |||
145 | static const unsigned int *shift_16 = bit_shift + 4; | ||
146 | |||
147 | typedef unsigned char byte; | ||
148 | |||
149 | #ifndef ROCKBOX_LITTLE_ENDIAN | ||
150 | #define ENDSWAP_INT16(x) (((((x)>>8)&0xFF)|(((x)&0xFF)<<8))) | ||
151 | #define ENDSWAP_INT32(x) (((((x)>>24)&0xFF)|(((x)>>8)&0xFF00)|(((x)&0xFF00)<<8)|(((x)&0xFF)<<24))) | ||
152 | #define WRITE_BUFFER(x, bsize, out) { \ | ||
153 | if (bsize > 2) *out++ = (byte)(*x >> 16)); \ | ||
154 | if (bsize > 1) *out++ = (byte)(*x >> 8); \ | ||
155 | *out++ = (byte) *x; } | ||
156 | #else | ||
157 | #define ENDSWAP_INT16(x) (x) | ||
158 | #define ENDSWAP_INT32(x) (x) | ||
159 | #define WRITE_BUFFER(x, bsize, out) { \ | ||
160 | *out++ = (byte) *x; \ | ||
161 | if (bsize > 1) *out++ = (byte)(*x >> 8); \ | ||
162 | if (bsize > 2) *out++ = (byte)(*x >> 16); } | ||
163 | #endif | ||
164 | |||
165 | #define PREDICTOR1(x, k) ((int)((((uint64)x << k) - x) >> k)) | ||
166 | #define DEC(x) (((x)&1)?(((x)+1)>>1):(-(x)>>1)) | ||
167 | |||
168 | typedef struct { | ||
169 | unsigned int TTAid; | ||
170 | unsigned short AudioFormat; | ||
171 | unsigned short NumChannels; | ||
172 | unsigned short BitsPerSample; | ||
173 | unsigned int SampleRate; | ||
174 | unsigned int DataLength; | ||
175 | unsigned int CRC32; | ||
176 | } __ATTRIBUTE_PACKED__ tta_hdr; | ||
177 | |||
178 | typedef struct { | ||
179 | unsigned int k0; | ||
180 | unsigned int k1; | ||
181 | unsigned int sum0; | ||
182 | unsigned int sum1; | ||
183 | } adapt; | ||
184 | |||
185 | typedef struct { | ||
186 | int index; /* Rockbox speciffic */ | ||
187 | int error; | ||
188 | int round; | ||
189 | int shift; | ||
190 | int mutex; | ||
191 | int qm[MAX_ORDER]; | ||
192 | int dx[MAX_ORDER * 3]; /* original: dx[MAX_ORDER + 1] */ | ||
193 | int dl[MAX_ORDER * 3]; /* original: dx[MAX_ORDER + 1] */ | ||
194 | } fltst; | ||
195 | |||
196 | typedef struct { | ||
197 | fltst fst; | ||
198 | adapt rice; | ||
199 | int last; | ||
200 | } decoder; | ||
201 | |||
202 | /* Rockbox speciffic: about id3 tags definitions delete. */ | ||
203 | #endif /* TTADEC_H_ */ | ||