symphonia_core/checksum/
crc16.rs

1// Symphonia
2// Copyright (c) 2019-2022 The Project Symphonia Developers.
3//
4// This Source Code Form is subject to the terms of the Mozilla Public
5// License, v. 2.0. If a copy of the MPL was not distributed with this
6// file, You can obtain one at https://mozilla.org/MPL/2.0/.
7
8use crate::io::Monitor;
9
10// Credit: This table was extracted from the reference FLAC decoder.
11#[rustfmt::skip]
12const CRC16_ANSI: [[u16; 256]; 8] =
13[
14    [
15        0x0000,  0x8005,  0x800f,  0x000a,  0x801b,  0x001e,  0x0014,  0x8011,
16        0x8033,  0x0036,  0x003c,  0x8039,  0x0028,  0x802d,  0x8027,  0x0022,
17        0x8063,  0x0066,  0x006c,  0x8069,  0x0078,  0x807d,  0x8077,  0x0072,
18        0x0050,  0x8055,  0x805f,  0x005a,  0x804b,  0x004e,  0x0044,  0x8041,
19        0x80c3,  0x00c6,  0x00cc,  0x80c9,  0x00d8,  0x80dd,  0x80d7,  0x00d2,
20        0x00f0,  0x80f5,  0x80ff,  0x00fa,  0x80eb,  0x00ee,  0x00e4,  0x80e1,
21        0x00a0,  0x80a5,  0x80af,  0x00aa,  0x80bb,  0x00be,  0x00b4,  0x80b1,
22        0x8093,  0x0096,  0x009c,  0x8099,  0x0088,  0x808d,  0x8087,  0x0082,
23        0x8183,  0x0186,  0x018c,  0x8189,  0x0198,  0x819d,  0x8197,  0x0192,
24        0x01b0,  0x81b5,  0x81bf,  0x01ba,  0x81ab,  0x01ae,  0x01a4,  0x81a1,
25        0x01e0,  0x81e5,  0x81ef,  0x01ea,  0x81fb,  0x01fe,  0x01f4,  0x81f1,
26        0x81d3,  0x01d6,  0x01dc,  0x81d9,  0x01c8,  0x81cd,  0x81c7,  0x01c2,
27        0x0140,  0x8145,  0x814f,  0x014a,  0x815b,  0x015e,  0x0154,  0x8151,
28        0x8173,  0x0176,  0x017c,  0x8179,  0x0168,  0x816d,  0x8167,  0x0162,
29        0x8123,  0x0126,  0x012c,  0x8129,  0x0138,  0x813d,  0x8137,  0x0132,
30        0x0110,  0x8115,  0x811f,  0x011a,  0x810b,  0x010e,  0x0104,  0x8101,
31        0x8303,  0x0306,  0x030c,  0x8309,  0x0318,  0x831d,  0x8317,  0x0312,
32        0x0330,  0x8335,  0x833f,  0x033a,  0x832b,  0x032e,  0x0324,  0x8321,
33        0x0360,  0x8365,  0x836f,  0x036a,  0x837b,  0x037e,  0x0374,  0x8371,
34        0x8353,  0x0356,  0x035c,  0x8359,  0x0348,  0x834d,  0x8347,  0x0342,
35        0x03c0,  0x83c5,  0x83cf,  0x03ca,  0x83db,  0x03de,  0x03d4,  0x83d1,
36        0x83f3,  0x03f6,  0x03fc,  0x83f9,  0x03e8,  0x83ed,  0x83e7,  0x03e2,
37        0x83a3,  0x03a6,  0x03ac,  0x83a9,  0x03b8,  0x83bd,  0x83b7,  0x03b2,
38        0x0390,  0x8395,  0x839f,  0x039a,  0x838b,  0x038e,  0x0384,  0x8381,
39        0x0280,  0x8285,  0x828f,  0x028a,  0x829b,  0x029e,  0x0294,  0x8291,
40        0x82b3,  0x02b6,  0x02bc,  0x82b9,  0x02a8,  0x82ad,  0x82a7,  0x02a2,
41        0x82e3,  0x02e6,  0x02ec,  0x82e9,  0x02f8,  0x82fd,  0x82f7,  0x02f2,
42        0x02d0,  0x82d5,  0x82df,  0x02da,  0x82cb,  0x02ce,  0x02c4,  0x82c1,
43        0x8243,  0x0246,  0x024c,  0x8249,  0x0258,  0x825d,  0x8257,  0x0252,
44        0x0270,  0x8275,  0x827f,  0x027a,  0x826b,  0x026e,  0x0264,  0x8261,
45        0x0220,  0x8225,  0x822f,  0x022a,  0x823b,  0x023e,  0x0234,  0x8231,
46        0x8213,  0x0216,  0x021c,  0x8219,  0x0208,  0x820d,  0x8207,  0x0202,
47    ],
48    [
49        0x0000,  0x8603,  0x8c03,  0x0a00,  0x9803,  0x1e00,  0x1400,  0x9203,
50        0xb003,  0x3600,  0x3c00,  0xba03,  0x2800,  0xae03,  0xa403,  0x2200,
51        0xe003,  0x6600,  0x6c00,  0xea03,  0x7800,  0xfe03,  0xf403,  0x7200,
52        0x5000,  0xd603,  0xdc03,  0x5a00,  0xc803,  0x4e00,  0x4400,  0xc203,
53        0x4003,  0xc600,  0xcc00,  0x4a03,  0xd800,  0x5e03,  0x5403,  0xd200,
54        0xf000,  0x7603,  0x7c03,  0xfa00,  0x6803,  0xee00,  0xe400,  0x6203,
55        0xa000,  0x2603,  0x2c03,  0xaa00,  0x3803,  0xbe00,  0xb400,  0x3203,
56        0x1003,  0x9600,  0x9c00,  0x1a03,  0x8800,  0x0e03,  0x0403,  0x8200,
57        0x8006,  0x0605,  0x0c05,  0x8a06,  0x1805,  0x9e06,  0x9406,  0x1205,
58        0x3005,  0xb606,  0xbc06,  0x3a05,  0xa806,  0x2e05,  0x2405,  0xa206,
59        0x6005,  0xe606,  0xec06,  0x6a05,  0xf806,  0x7e05,  0x7405,  0xf206,
60        0xd006,  0x5605,  0x5c05,  0xda06,  0x4805,  0xce06,  0xc406,  0x4205,
61        0xc005,  0x4606,  0x4c06,  0xca05,  0x5806,  0xde05,  0xd405,  0x5206,
62        0x7006,  0xf605,  0xfc05,  0x7a06,  0xe805,  0x6e06,  0x6406,  0xe205,
63        0x2006,  0xa605,  0xac05,  0x2a06,  0xb805,  0x3e06,  0x3406,  0xb205,
64        0x9005,  0x1606,  0x1c06,  0x9a05,  0x0806,  0x8e05,  0x8405,  0x0206,
65        0x8009,  0x060a,  0x0c0a,  0x8a09,  0x180a,  0x9e09,  0x9409,  0x120a,
66        0x300a,  0xb609,  0xbc09,  0x3a0a,  0xa809,  0x2e0a,  0x240a,  0xa209,
67        0x600a,  0xe609,  0xec09,  0x6a0a,  0xf809,  0x7e0a,  0x740a,  0xf209,
68        0xd009,  0x560a,  0x5c0a,  0xda09,  0x480a,  0xce09,  0xc409,  0x420a,
69        0xc00a,  0x4609,  0x4c09,  0xca0a,  0x5809,  0xde0a,  0xd40a,  0x5209,
70        0x7009,  0xf60a,  0xfc0a,  0x7a09,  0xe80a,  0x6e09,  0x6409,  0xe20a,
71        0x2009,  0xa60a,  0xac0a,  0x2a09,  0xb80a,  0x3e09,  0x3409,  0xb20a,
72        0x900a,  0x1609,  0x1c09,  0x9a0a,  0x0809,  0x8e0a,  0x840a,  0x0209,
73        0x000f,  0x860c,  0x8c0c,  0x0a0f,  0x980c,  0x1e0f,  0x140f,  0x920c,
74        0xb00c,  0x360f,  0x3c0f,  0xba0c,  0x280f,  0xae0c,  0xa40c,  0x220f,
75        0xe00c,  0x660f,  0x6c0f,  0xea0c,  0x780f,  0xfe0c,  0xf40c,  0x720f,
76        0x500f,  0xd60c,  0xdc0c,  0x5a0f,  0xc80c,  0x4e0f,  0x440f,  0xc20c,
77        0x400c,  0xc60f,  0xcc0f,  0x4a0c,  0xd80f,  0x5e0c,  0x540c,  0xd20f,
78        0xf00f,  0x760c,  0x7c0c,  0xfa0f,  0x680c,  0xee0f,  0xe40f,  0x620c,
79        0xa00f,  0x260c,  0x2c0c,  0xaa0f,  0x380c,  0xbe0f,  0xb40f,  0x320c,
80        0x100c,  0x960f,  0x9c0f,  0x1a0c,  0x880f,  0x0e0c,  0x040c,  0x820f,
81    ],
82    [
83        0x0000,  0x8017,  0x802b,  0x003c,  0x8053,  0x0044,  0x0078,  0x806f,
84        0x80a3,  0x00b4,  0x0088,  0x809f,  0x00f0,  0x80e7,  0x80db,  0x00cc,
85        0x8143,  0x0154,  0x0168,  0x817f,  0x0110,  0x8107,  0x813b,  0x012c,
86        0x01e0,  0x81f7,  0x81cb,  0x01dc,  0x81b3,  0x01a4,  0x0198,  0x818f,
87        0x8283,  0x0294,  0x02a8,  0x82bf,  0x02d0,  0x82c7,  0x82fb,  0x02ec,
88        0x0220,  0x8237,  0x820b,  0x021c,  0x8273,  0x0264,  0x0258,  0x824f,
89        0x03c0,  0x83d7,  0x83eb,  0x03fc,  0x8393,  0x0384,  0x03b8,  0x83af,
90        0x8363,  0x0374,  0x0348,  0x835f,  0x0330,  0x8327,  0x831b,  0x030c,
91        0x8503,  0x0514,  0x0528,  0x853f,  0x0550,  0x8547,  0x857b,  0x056c,
92        0x05a0,  0x85b7,  0x858b,  0x059c,  0x85f3,  0x05e4,  0x05d8,  0x85cf,
93        0x0440,  0x8457,  0x846b,  0x047c,  0x8413,  0x0404,  0x0438,  0x842f,
94        0x84e3,  0x04f4,  0x04c8,  0x84df,  0x04b0,  0x84a7,  0x849b,  0x048c,
95        0x0780,  0x8797,  0x87ab,  0x07bc,  0x87d3,  0x07c4,  0x07f8,  0x87ef,
96        0x8723,  0x0734,  0x0708,  0x871f,  0x0770,  0x8767,  0x875b,  0x074c,
97        0x86c3,  0x06d4,  0x06e8,  0x86ff,  0x0690,  0x8687,  0x86bb,  0x06ac,
98        0x0660,  0x8677,  0x864b,  0x065c,  0x8633,  0x0624,  0x0618,  0x860f,
99        0x8a03,  0x0a14,  0x0a28,  0x8a3f,  0x0a50,  0x8a47,  0x8a7b,  0x0a6c,
100        0x0aa0,  0x8ab7,  0x8a8b,  0x0a9c,  0x8af3,  0x0ae4,  0x0ad8,  0x8acf,
101        0x0b40,  0x8b57,  0x8b6b,  0x0b7c,  0x8b13,  0x0b04,  0x0b38,  0x8b2f,
102        0x8be3,  0x0bf4,  0x0bc8,  0x8bdf,  0x0bb0,  0x8ba7,  0x8b9b,  0x0b8c,
103        0x0880,  0x8897,  0x88ab,  0x08bc,  0x88d3,  0x08c4,  0x08f8,  0x88ef,
104        0x8823,  0x0834,  0x0808,  0x881f,  0x0870,  0x8867,  0x885b,  0x084c,
105        0x89c3,  0x09d4,  0x09e8,  0x89ff,  0x0990,  0x8987,  0x89bb,  0x09ac,
106        0x0960,  0x8977,  0x894b,  0x095c,  0x8933,  0x0924,  0x0918,  0x890f,
107        0x0f00,  0x8f17,  0x8f2b,  0x0f3c,  0x8f53,  0x0f44,  0x0f78,  0x8f6f,
108        0x8fa3,  0x0fb4,  0x0f88,  0x8f9f,  0x0ff0,  0x8fe7,  0x8fdb,  0x0fcc,
109        0x8e43,  0x0e54,  0x0e68,  0x8e7f,  0x0e10,  0x8e07,  0x8e3b,  0x0e2c,
110        0x0ee0,  0x8ef7,  0x8ecb,  0x0edc,  0x8eb3,  0x0ea4,  0x0e98,  0x8e8f,
111        0x8d83,  0x0d94,  0x0da8,  0x8dbf,  0x0dd0,  0x8dc7,  0x8dfb,  0x0dec,
112        0x0d20,  0x8d37,  0x8d0b,  0x0d1c,  0x8d73,  0x0d64,  0x0d58,  0x8d4f,
113        0x0cc0,  0x8cd7,  0x8ceb,  0x0cfc,  0x8c93,  0x0c84,  0x0cb8,  0x8caf,
114        0x8c63,  0x0c74,  0x0c48,  0x8c5f,  0x0c30,  0x8c27,  0x8c1b,  0x0c0c,
115    ],
116    [
117        0x0000,  0x9403,  0xa803,  0x3c00,  0xd003,  0x4400,  0x7800,  0xec03,
118        0x2003,  0xb400,  0x8800,  0x1c03,  0xf000,  0x6403,  0x5803,  0xcc00,
119        0x4006,  0xd405,  0xe805,  0x7c06,  0x9005,  0x0406,  0x3806,  0xac05,
120        0x6005,  0xf406,  0xc806,  0x5c05,  0xb006,  0x2405,  0x1805,  0x8c06,
121        0x800c,  0x140f,  0x280f,  0xbc0c,  0x500f,  0xc40c,  0xf80c,  0x6c0f,
122        0xa00f,  0x340c,  0x080c,  0x9c0f,  0x700c,  0xe40f,  0xd80f,  0x4c0c,
123        0xc00a,  0x5409,  0x6809,  0xfc0a,  0x1009,  0x840a,  0xb80a,  0x2c09,
124        0xe009,  0x740a,  0x480a,  0xdc09,  0x300a,  0xa409,  0x9809,  0x0c0a,
125        0x801d,  0x141e,  0x281e,  0xbc1d,  0x501e,  0xc41d,  0xf81d,  0x6c1e,
126        0xa01e,  0x341d,  0x081d,  0x9c1e,  0x701d,  0xe41e,  0xd81e,  0x4c1d,
127        0xc01b,  0x5418,  0x6818,  0xfc1b,  0x1018,  0x841b,  0xb81b,  0x2c18,
128        0xe018,  0x741b,  0x481b,  0xdc18,  0x301b,  0xa418,  0x9818,  0x0c1b,
129        0x0011,  0x9412,  0xa812,  0x3c11,  0xd012,  0x4411,  0x7811,  0xec12,
130        0x2012,  0xb411,  0x8811,  0x1c12,  0xf011,  0x6412,  0x5812,  0xcc11,
131        0x4017,  0xd414,  0xe814,  0x7c17,  0x9014,  0x0417,  0x3817,  0xac14,
132        0x6014,  0xf417,  0xc817,  0x5c14,  0xb017,  0x2414,  0x1814,  0x8c17,
133        0x803f,  0x143c,  0x283c,  0xbc3f,  0x503c,  0xc43f,  0xf83f,  0x6c3c,
134        0xa03c,  0x343f,  0x083f,  0x9c3c,  0x703f,  0xe43c,  0xd83c,  0x4c3f,
135        0xc039,  0x543a,  0x683a,  0xfc39,  0x103a,  0x8439,  0xb839,  0x2c3a,
136        0xe03a,  0x7439,  0x4839,  0xdc3a,  0x3039,  0xa43a,  0x983a,  0x0c39,
137        0x0033,  0x9430,  0xa830,  0x3c33,  0xd030,  0x4433,  0x7833,  0xec30,
138        0x2030,  0xb433,  0x8833,  0x1c30,  0xf033,  0x6430,  0x5830,  0xcc33,
139        0x4035,  0xd436,  0xe836,  0x7c35,  0x9036,  0x0435,  0x3835,  0xac36,
140        0x6036,  0xf435,  0xc835,  0x5c36,  0xb035,  0x2436,  0x1836,  0x8c35,
141        0x0022,  0x9421,  0xa821,  0x3c22,  0xd021,  0x4422,  0x7822,  0xec21,
142        0x2021,  0xb422,  0x8822,  0x1c21,  0xf022,  0x6421,  0x5821,  0xcc22,
143        0x4024,  0xd427,  0xe827,  0x7c24,  0x9027,  0x0424,  0x3824,  0xac27,
144        0x6027,  0xf424,  0xc824,  0x5c27,  0xb024,  0x2427,  0x1827,  0x8c24,
145        0x802e,  0x142d,  0x282d,  0xbc2e,  0x502d,  0xc42e,  0xf82e,  0x6c2d,
146        0xa02d,  0x342e,  0x082e,  0x9c2d,  0x702e,  0xe42d,  0xd82d,  0x4c2e,
147        0xc028,  0x542b,  0x682b,  0xfc28,  0x102b,  0x8428,  0xb828,  0x2c2b,
148        0xe02b,  0x7428,  0x4828,  0xdc2b,  0x3028,  0xa42b,  0x982b,  0x0c28,
149    ],
150    [
151        0x0000,  0x807b,  0x80f3,  0x0088,  0x81e3,  0x0198,  0x0110,  0x816b,
152        0x83c3,  0x03b8,  0x0330,  0x834b,  0x0220,  0x825b,  0x82d3,  0x02a8,
153        0x8783,  0x07f8,  0x0770,  0x870b,  0x0660,  0x861b,  0x8693,  0x06e8,
154        0x0440,  0x843b,  0x84b3,  0x04c8,  0x85a3,  0x05d8,  0x0550,  0x852b,
155        0x8f03,  0x0f78,  0x0ff0,  0x8f8b,  0x0ee0,  0x8e9b,  0x8e13,  0x0e68,
156        0x0cc0,  0x8cbb,  0x8c33,  0x0c48,  0x8d23,  0x0d58,  0x0dd0,  0x8dab,
157        0x0880,  0x88fb,  0x8873,  0x0808,  0x8963,  0x0918,  0x0990,  0x89eb,
158        0x8b43,  0x0b38,  0x0bb0,  0x8bcb,  0x0aa0,  0x8adb,  0x8a53,  0x0a28,
159        0x9e03,  0x1e78,  0x1ef0,  0x9e8b,  0x1fe0,  0x9f9b,  0x9f13,  0x1f68,
160        0x1dc0,  0x9dbb,  0x9d33,  0x1d48,  0x9c23,  0x1c58,  0x1cd0,  0x9cab,
161        0x1980,  0x99fb,  0x9973,  0x1908,  0x9863,  0x1818,  0x1890,  0x98eb,
162        0x9a43,  0x1a38,  0x1ab0,  0x9acb,  0x1ba0,  0x9bdb,  0x9b53,  0x1b28,
163        0x1100,  0x917b,  0x91f3,  0x1188,  0x90e3,  0x1098,  0x1010,  0x906b,
164        0x92c3,  0x12b8,  0x1230,  0x924b,  0x1320,  0x935b,  0x93d3,  0x13a8,
165        0x9683,  0x16f8,  0x1670,  0x960b,  0x1760,  0x971b,  0x9793,  0x17e8,
166        0x1540,  0x953b,  0x95b3,  0x15c8,  0x94a3,  0x14d8,  0x1450,  0x942b,
167        0xbc03,  0x3c78,  0x3cf0,  0xbc8b,  0x3de0,  0xbd9b,  0xbd13,  0x3d68,
168        0x3fc0,  0xbfbb,  0xbf33,  0x3f48,  0xbe23,  0x3e58,  0x3ed0,  0xbeab,
169        0x3b80,  0xbbfb,  0xbb73,  0x3b08,  0xba63,  0x3a18,  0x3a90,  0xbaeb,
170        0xb843,  0x3838,  0x38b0,  0xb8cb,  0x39a0,  0xb9db,  0xb953,  0x3928,
171        0x3300,  0xb37b,  0xb3f3,  0x3388,  0xb2e3,  0x3298,  0x3210,  0xb26b,
172        0xb0c3,  0x30b8,  0x3030,  0xb04b,  0x3120,  0xb15b,  0xb1d3,  0x31a8,
173        0xb483,  0x34f8,  0x3470,  0xb40b,  0x3560,  0xb51b,  0xb593,  0x35e8,
174        0x3740,  0xb73b,  0xb7b3,  0x37c8,  0xb6a3,  0x36d8,  0x3650,  0xb62b,
175        0x2200,  0xa27b,  0xa2f3,  0x2288,  0xa3e3,  0x2398,  0x2310,  0xa36b,
176        0xa1c3,  0x21b8,  0x2130,  0xa14b,  0x2020,  0xa05b,  0xa0d3,  0x20a8,
177        0xa583,  0x25f8,  0x2570,  0xa50b,  0x2460,  0xa41b,  0xa493,  0x24e8,
178        0x2640,  0xa63b,  0xa6b3,  0x26c8,  0xa7a3,  0x27d8,  0x2750,  0xa72b,
179        0xad03,  0x2d78,  0x2df0,  0xad8b,  0x2ce0,  0xac9b,  0xac13,  0x2c68,
180        0x2ec0,  0xaebb,  0xae33,  0x2e48,  0xaf23,  0x2f58,  0x2fd0,  0xafab,
181        0x2a80,  0xaafb,  0xaa73,  0x2a08,  0xab63,  0x2b18,  0x2b90,  0xabeb,
182        0xa943,  0x2938,  0x29b0,  0xa9cb,  0x28a0,  0xa8db,  0xa853,  0x2828,
183    ],
184    [
185        0x0000,  0xf803,  0x7003,  0x8800,  0xe006,  0x1805,  0x9005,  0x6806,
186        0x4009,  0xb80a,  0x300a,  0xc809,  0xa00f,  0x580c,  0xd00c,  0x280f,
187        0x8012,  0x7811,  0xf011,  0x0812,  0x6014,  0x9817,  0x1017,  0xe814,
188        0xc01b,  0x3818,  0xb018,  0x481b,  0x201d,  0xd81e,  0x501e,  0xa81d,
189        0x8021,  0x7822,  0xf022,  0x0821,  0x6027,  0x9824,  0x1024,  0xe827,
190        0xc028,  0x382b,  0xb02b,  0x4828,  0x202e,  0xd82d,  0x502d,  0xa82e,
191        0x0033,  0xf830,  0x7030,  0x8833,  0xe035,  0x1836,  0x9036,  0x6835,
192        0x403a,  0xb839,  0x3039,  0xc83a,  0xa03c,  0x583f,  0xd03f,  0x283c,
193        0x8047,  0x7844,  0xf044,  0x0847,  0x6041,  0x9842,  0x1042,  0xe841,
194        0xc04e,  0x384d,  0xb04d,  0x484e,  0x2048,  0xd84b,  0x504b,  0xa848,
195        0x0055,  0xf856,  0x7056,  0x8855,  0xe053,  0x1850,  0x9050,  0x6853,
196        0x405c,  0xb85f,  0x305f,  0xc85c,  0xa05a,  0x5859,  0xd059,  0x285a,
197        0x0066,  0xf865,  0x7065,  0x8866,  0xe060,  0x1863,  0x9063,  0x6860,
198        0x406f,  0xb86c,  0x306c,  0xc86f,  0xa069,  0x586a,  0xd06a,  0x2869,
199        0x8074,  0x7877,  0xf077,  0x0874,  0x6072,  0x9871,  0x1071,  0xe872,
200        0xc07d,  0x387e,  0xb07e,  0x487d,  0x207b,  0xd878,  0x5078,  0xa87b,
201        0x808b,  0x7888,  0xf088,  0x088b,  0x608d,  0x988e,  0x108e,  0xe88d,
202        0xc082,  0x3881,  0xb081,  0x4882,  0x2084,  0xd887,  0x5087,  0xa884,
203        0x0099,  0xf89a,  0x709a,  0x8899,  0xe09f,  0x189c,  0x909c,  0x689f,
204        0x4090,  0xb893,  0x3093,  0xc890,  0xa096,  0x5895,  0xd095,  0x2896,
205        0x00aa,  0xf8a9,  0x70a9,  0x88aa,  0xe0ac,  0x18af,  0x90af,  0x68ac,
206        0x40a3,  0xb8a0,  0x30a0,  0xc8a3,  0xa0a5,  0x58a6,  0xd0a6,  0x28a5,
207        0x80b8,  0x78bb,  0xf0bb,  0x08b8,  0x60be,  0x98bd,  0x10bd,  0xe8be,
208        0xc0b1,  0x38b2,  0xb0b2,  0x48b1,  0x20b7,  0xd8b4,  0x50b4,  0xa8b7,
209        0x00cc,  0xf8cf,  0x70cf,  0x88cc,  0xe0ca,  0x18c9,  0x90c9,  0x68ca,
210        0x40c5,  0xb8c6,  0x30c6,  0xc8c5,  0xa0c3,  0x58c0,  0xd0c0,  0x28c3,
211        0x80de,  0x78dd,  0xf0dd,  0x08de,  0x60d8,  0x98db,  0x10db,  0xe8d8,
212        0xc0d7,  0x38d4,  0xb0d4,  0x48d7,  0x20d1,  0xd8d2,  0x50d2,  0xa8d1,
213        0x80ed,  0x78ee,  0xf0ee,  0x08ed,  0x60eb,  0x98e8,  0x10e8,  0xe8eb,
214        0xc0e4,  0x38e7,  0xb0e7,  0x48e4,  0x20e2,  0xd8e1,  0x50e1,  0xa8e2,
215        0x00ff,  0xf8fc,  0x70fc,  0x88ff,  0xe0f9,  0x18fa,  0x90fa,  0x68f9,
216        0x40f6,  0xb8f5,  0x30f5,  0xc8f6,  0xa0f0,  0x58f3,  0xd0f3,  0x28f0,
217    ],
218    [
219        0x0000,  0x8113,  0x8223,  0x0330,  0x8443,  0x0550,  0x0660,  0x8773,
220        0x8883,  0x0990,  0x0aa0,  0x8bb3,  0x0cc0,  0x8dd3,  0x8ee3,  0x0ff0,
221        0x9103,  0x1010,  0x1320,  0x9233,  0x1540,  0x9453,  0x9763,  0x1670,
222        0x1980,  0x9893,  0x9ba3,  0x1ab0,  0x9dc3,  0x1cd0,  0x1fe0,  0x9ef3,
223        0xa203,  0x2310,  0x2020,  0xa133,  0x2640,  0xa753,  0xa463,  0x2570,
224        0x2a80,  0xab93,  0xa8a3,  0x29b0,  0xaec3,  0x2fd0,  0x2ce0,  0xadf3,
225        0x3300,  0xb213,  0xb123,  0x3030,  0xb743,  0x3650,  0x3560,  0xb473,
226        0xbb83,  0x3a90,  0x39a0,  0xb8b3,  0x3fc0,  0xbed3,  0xbde3,  0x3cf0,
227        0xc403,  0x4510,  0x4620,  0xc733,  0x4040,  0xc153,  0xc263,  0x4370,
228        0x4c80,  0xcd93,  0xcea3,  0x4fb0,  0xc8c3,  0x49d0,  0x4ae0,  0xcbf3,
229        0x5500,  0xd413,  0xd723,  0x5630,  0xd143,  0x5050,  0x5360,  0xd273,
230        0xdd83,  0x5c90,  0x5fa0,  0xdeb3,  0x59c0,  0xd8d3,  0xdbe3,  0x5af0,
231        0x6600,  0xe713,  0xe423,  0x6530,  0xe243,  0x6350,  0x6060,  0xe173,
232        0xee83,  0x6f90,  0x6ca0,  0xedb3,  0x6ac0,  0xebd3,  0xe8e3,  0x69f0,
233        0xf703,  0x7610,  0x7520,  0xf433,  0x7340,  0xf253,  0xf163,  0x7070,
234        0x7f80,  0xfe93,  0xfda3,  0x7cb0,  0xfbc3,  0x7ad0,  0x79e0,  0xf8f3,
235        0x0803,  0x8910,  0x8a20,  0x0b33,  0x8c40,  0x0d53,  0x0e63,  0x8f70,
236        0x8080,  0x0193,  0x02a3,  0x83b0,  0x04c3,  0x85d0,  0x86e0,  0x07f3,
237        0x9900,  0x1813,  0x1b23,  0x9a30,  0x1d43,  0x9c50,  0x9f60,  0x1e73,
238        0x1183,  0x9090,  0x93a0,  0x12b3,  0x95c0,  0x14d3,  0x17e3,  0x96f0,
239        0xaa00,  0x2b13,  0x2823,  0xa930,  0x2e43,  0xaf50,  0xac60,  0x2d73,
240        0x2283,  0xa390,  0xa0a0,  0x21b3,  0xa6c0,  0x27d3,  0x24e3,  0xa5f0,
241        0x3b03,  0xba10,  0xb920,  0x3833,  0xbf40,  0x3e53,  0x3d63,  0xbc70,
242        0xb380,  0x3293,  0x31a3,  0xb0b0,  0x37c3,  0xb6d0,  0xb5e0,  0x34f3,
243        0xcc00,  0x4d13,  0x4e23,  0xcf30,  0x4843,  0xc950,  0xca60,  0x4b73,
244        0x4483,  0xc590,  0xc6a0,  0x47b3,  0xc0c0,  0x41d3,  0x42e3,  0xc3f0,
245        0x5d03,  0xdc10,  0xdf20,  0x5e33,  0xd940,  0x5853,  0x5b63,  0xda70,
246        0xd580,  0x5493,  0x57a3,  0xd6b0,  0x51c3,  0xd0d0,  0xd3e0,  0x52f3,
247        0x6e03,  0xef10,  0xec20,  0x6d33,  0xea40,  0x6b53,  0x6863,  0xe970,
248        0xe680,  0x6793,  0x64a3,  0xe5b0,  0x62c3,  0xe3d0,  0xe0e0,  0x61f3,
249        0xff00,  0x7e13,  0x7d23,  0xfc30,  0x7b43,  0xfa50,  0xf960,  0x7873,
250        0x7783,  0xf690,  0xf5a0,  0x74b3,  0xf3c0,  0x72d3,  0x71e3,  0xf0f0,
251    ],
252    [
253        0x0000,  0x1006,  0x200c,  0x300a,  0x4018,  0x501e,  0x6014,  0x7012,
254        0x8030,  0x9036,  0xa03c,  0xb03a,  0xc028,  0xd02e,  0xe024,  0xf022,
255        0x8065,  0x9063,  0xa069,  0xb06f,  0xc07d,  0xd07b,  0xe071,  0xf077,
256        0x0055,  0x1053,  0x2059,  0x305f,  0x404d,  0x504b,  0x6041,  0x7047,
257        0x80cf,  0x90c9,  0xa0c3,  0xb0c5,  0xc0d7,  0xd0d1,  0xe0db,  0xf0dd,
258        0x00ff,  0x10f9,  0x20f3,  0x30f5,  0x40e7,  0x50e1,  0x60eb,  0x70ed,
259        0x00aa,  0x10ac,  0x20a6,  0x30a0,  0x40b2,  0x50b4,  0x60be,  0x70b8,
260        0x809a,  0x909c,  0xa096,  0xb090,  0xc082,  0xd084,  0xe08e,  0xf088,
261        0x819b,  0x919d,  0xa197,  0xb191,  0xc183,  0xd185,  0xe18f,  0xf189,
262        0x01ab,  0x11ad,  0x21a7,  0x31a1,  0x41b3,  0x51b5,  0x61bf,  0x71b9,
263        0x01fe,  0x11f8,  0x21f2,  0x31f4,  0x41e6,  0x51e0,  0x61ea,  0x71ec,
264        0x81ce,  0x91c8,  0xa1c2,  0xb1c4,  0xc1d6,  0xd1d0,  0xe1da,  0xf1dc,
265        0x0154,  0x1152,  0x2158,  0x315e,  0x414c,  0x514a,  0x6140,  0x7146,
266        0x8164,  0x9162,  0xa168,  0xb16e,  0xc17c,  0xd17a,  0xe170,  0xf176,
267        0x8131,  0x9137,  0xa13d,  0xb13b,  0xc129,  0xd12f,  0xe125,  0xf123,
268        0x0101,  0x1107,  0x210d,  0x310b,  0x4119,  0x511f,  0x6115,  0x7113,
269        0x8333,  0x9335,  0xa33f,  0xb339,  0xc32b,  0xd32d,  0xe327,  0xf321,
270        0x0303,  0x1305,  0x230f,  0x3309,  0x431b,  0x531d,  0x6317,  0x7311,
271        0x0356,  0x1350,  0x235a,  0x335c,  0x434e,  0x5348,  0x6342,  0x7344,
272        0x8366,  0x9360,  0xa36a,  0xb36c,  0xc37e,  0xd378,  0xe372,  0xf374,
273        0x03fc,  0x13fa,  0x23f0,  0x33f6,  0x43e4,  0x53e2,  0x63e8,  0x73ee,
274        0x83cc,  0x93ca,  0xa3c0,  0xb3c6,  0xc3d4,  0xd3d2,  0xe3d8,  0xf3de,
275        0x8399,  0x939f,  0xa395,  0xb393,  0xc381,  0xd387,  0xe38d,  0xf38b,
276        0x03a9,  0x13af,  0x23a5,  0x33a3,  0x43b1,  0x53b7,  0x63bd,  0x73bb,
277        0x02a8,  0x12ae,  0x22a4,  0x32a2,  0x42b0,  0x52b6,  0x62bc,  0x72ba,
278        0x8298,  0x929e,  0xa294,  0xb292,  0xc280,  0xd286,  0xe28c,  0xf28a,
279        0x82cd,  0x92cb,  0xa2c1,  0xb2c7,  0xc2d5,  0xd2d3,  0xe2d9,  0xf2df,
280        0x02fd,  0x12fb,  0x22f1,  0x32f7,  0x42e5,  0x52e3,  0x62e9,  0x72ef,
281        0x8267,  0x9261,  0xa26b,  0xb26d,  0xc27f,  0xd279,  0xe273,  0xf275,
282        0x0257,  0x1251,  0x225b,  0x325d,  0x424f,  0x5249,  0x6243,  0x7245,
283        0x0202,  0x1204,  0x220e,  0x3208,  0x421a,  0x521c,  0x6216,  0x7210,
284        0x8232,  0x9234,  0xa23e,  0xb238,  0xc22a,  0xd22c,  0xe226,  0xf220,
285    ]
286];
287
288/// `Crc16Ansi` implements the CRC-16 algorithm using the ANSI polynominal.
289///
290/// * Polynomial = 0x8005
291/// * RefIn = false
292/// * RefOut = false
293/// * XorOut = false
294pub struct Crc16Ansi {
295    state: u16,
296}
297
298impl Crc16Ansi {
299    /// Instantiate a `Crc16Ansi` instance with an initial state.
300    pub fn new(state: u16) -> Self {
301        Crc16Ansi { state }
302    }
303
304    /// Returns the computed CRC.
305    pub fn crc(&self) -> u16 {
306        self.state
307    }
308}
309
310impl Monitor for Crc16Ansi {
311    #[inline(always)]
312    fn process_byte(&mut self, byte: u8) {
313        self.state = (self.state << 8) ^ CRC16_ANSI[0][((self.state >> 8) as u8 ^ byte) as usize];
314    }
315
316    fn process_buf_bytes(&mut self, buf: &[u8]) {
317        let mut iter = buf.chunks_exact(8);
318
319        for bytes in &mut iter {
320            let word = (u16::from(bytes[0]) << 8) | u16::from(bytes[1]);
321
322            let xor = self.state ^ word;
323
324            self.state = CRC16_ANSI[7][((xor >> 8) & 0xff) as usize]
325                ^ CRC16_ANSI[6][((xor >> 0) & 0xff) as usize]
326                ^ CRC16_ANSI[5][usize::from(bytes[2])]
327                ^ CRC16_ANSI[4][usize::from(bytes[3])]
328                ^ CRC16_ANSI[3][usize::from(bytes[4])]
329                ^ CRC16_ANSI[2][usize::from(bytes[5])]
330                ^ CRC16_ANSI[1][usize::from(bytes[6])]
331                ^ CRC16_ANSI[0][usize::from(bytes[7])];
332        }
333
334        for byte in iter.remainder() {
335            self.process_byte(*byte);
336        }
337    }
338}
339
340#[rustfmt::skip]
341const CRC16_ANSI_LE: [u16; 256] =
342[
343    0x0000, 0xc0c1, 0xc181, 0x0140, 0xc301, 0x03c0, 0x0280, 0xc241,
344    0xc601, 0x06c0, 0x0780, 0xc741, 0x0500, 0xc5c1, 0xc481, 0x0440,
345    0xcc01, 0x0cc0, 0x0d80, 0xcd41, 0x0f00, 0xcfc1, 0xce81, 0x0e40,
346    0x0a00, 0xcac1, 0xcb81, 0x0b40, 0xc901, 0x09c0, 0x0880, 0xc841,
347    0xd801, 0x18c0, 0x1980, 0xd941, 0x1b00, 0xdbc1, 0xda81, 0x1a40,
348    0x1e00, 0xdec1, 0xdf81, 0x1f40, 0xdd01, 0x1dc0, 0x1c80, 0xdc41,
349    0x1400, 0xd4c1, 0xd581, 0x1540, 0xd701, 0x17c0, 0x1680, 0xd641,
350    0xd201, 0x12c0, 0x1380, 0xd341, 0x1100, 0xd1c1, 0xd081, 0x1040,
351    0xf001, 0x30c0, 0x3180, 0xf141, 0x3300, 0xf3c1, 0xf281, 0x3240,
352    0x3600, 0xf6c1, 0xf781, 0x3740, 0xf501, 0x35c0, 0x3480, 0xf441,
353    0x3c00, 0xfcc1, 0xfd81, 0x3d40, 0xff01, 0x3fc0, 0x3e80, 0xfe41,
354    0xfa01, 0x3ac0, 0x3b80, 0xfb41, 0x3900, 0xf9c1, 0xf881, 0x3840,
355    0x2800, 0xe8c1, 0xe981, 0x2940, 0xeb01, 0x2bc0, 0x2a80, 0xea41,
356    0xee01, 0x2ec0, 0x2f80, 0xef41, 0x2d00, 0xedc1, 0xec81, 0x2c40,
357    0xe401, 0x24c0, 0x2580, 0xe541, 0x2700, 0xe7c1, 0xe681, 0x2640,
358    0x2200, 0xe2c1, 0xe381, 0x2340, 0xe101, 0x21c0, 0x2080, 0xe041,
359    0xa001, 0x60c0, 0x6180, 0xa141, 0x6300, 0xa3c1, 0xa281, 0x6240,
360    0x6600, 0xa6c1, 0xa781, 0x6740, 0xa501, 0x65c0, 0x6480, 0xa441,
361    0x6c00, 0xacc1, 0xad81, 0x6d40, 0xaf01, 0x6fc0, 0x6e80, 0xae41,
362    0xaa01, 0x6ac0, 0x6b80, 0xab41, 0x6900, 0xa9c1, 0xa881, 0x6840,
363    0x7800, 0xb8c1, 0xb981, 0x7940, 0xbb01, 0x7bc0, 0x7a80, 0xba41,
364    0xbe01, 0x7ec0, 0x7f80, 0xbf41, 0x7d00, 0xbdc1, 0xbc81, 0x7c40,
365    0xb401, 0x74c0, 0x7580, 0xb541, 0x7700, 0xb7c1, 0xb681, 0x7640,
366    0x7200, 0xb2c1, 0xb381, 0x7340, 0xb101, 0x71c0, 0x7080, 0xb041,
367    0x5000, 0x90c1, 0x9181, 0x5140, 0x9301, 0x53c0, 0x5280, 0x9241,
368    0x9601, 0x56c0, 0x5780, 0x9741, 0x5500, 0x95c1, 0x9481, 0x5440,
369    0x9c01, 0x5cc0, 0x5d80, 0x9d41, 0x5f00, 0x9fc1, 0x9e81, 0x5e40,
370    0x5a00, 0x9ac1, 0x9b81, 0x5b40, 0x9901, 0x59c0, 0x5880, 0x9841,
371    0x8801, 0x48c0, 0x4980, 0x8941, 0x4b00, 0x8bc1, 0x8a81, 0x4a40,
372    0x4e00, 0x8ec1, 0x8f81, 0x4f40, 0x8d01, 0x4dc0, 0x4c80, 0x8c41,
373    0x4400, 0x84c1, 0x8581, 0x4540, 0x8701, 0x47c0, 0x4680, 0x8641,
374    0x8201, 0x42c0, 0x4380, 0x8341, 0x4100, 0x81c1, 0x8081, 0x4040,
375];
376
377/// `Crc16AnsiLe` implements the CRC-16 algorithm using the ANSI polynominal in little-endian byte
378/// order.
379///
380/// * Polynomial = 0x8005
381/// * RefIn = false
382/// * RefOut = false
383/// * XorOut = false
384pub struct Crc16AnsiLe {
385    state: u16,
386}
387
388impl Crc16AnsiLe {
389    /// Instantiate a `Crc16AnsiLe` instance with an initial state.
390    pub fn new(state: u16) -> Self {
391        Crc16AnsiLe { state }
392    }
393
394    /// Returns the computed CRC.
395    pub fn crc(&self) -> u16 {
396        self.state
397    }
398}
399
400impl Monitor for Crc16AnsiLe {
401    #[inline(always)]
402    fn process_byte(&mut self, byte: u8) {
403        self.state = (self.state >> 8) ^ CRC16_ANSI_LE[(self.state as u8 ^ byte) as usize];
404    }
405
406    fn process_buf_bytes(&mut self, buf: &[u8]) {
407        // TODO: Implement by-8 method.
408        for byte in buf.iter() {
409            self.process_byte(*byte);
410        }
411    }
412}
symphonia_core/checksum/crc16.rs

symphonia_core/checksum/
crc16.rs
