1pub const ADPCM_STEP_SIZE_ADJ: [i32; 8] = [-1, -1, -1, -1, 2, 4, 6, 8];
4
5pub const ADPCM_STEP_SIZES: [i32; 89] = [
6 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, 50, 55, 60, 66,
7 73, 80, 88, 97, 107, 118, 130, 143, 157, 173, 190, 209, 230, 253, 279, 307, 337, 371, 408, 449,
8 494, 544, 598, 658, 724, 796, 876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, 2272,
9 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630, 9493,
10 10442, 11487, 12635, 13899, 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767,
11];
12
13pub const ADPCM_PRED_DIFF_TABLE: [i32; 16 * 89] = [
14 0, 1, 3, 4, 7, 8, 10, 11, 0, -1, -3, -4, -7, -8, -10, -11, 1, 3, 5, 7, 9, 11, 13, 15, -1, -3,
15 -5, -7, -9, -11, -13, -15, 1, 3, 5, 7, 10, 12, 14, 16, -1, -3, -5, -7, -10, -12, -14, -16, 1,
16 3, 6, 8, 11, 13, 16, 18, -1, -3, -6, -8, -11, -13, -16, -18, 1, 3, 6, 8, 12, 14, 17, 19, -1,
17 -3, -6, -8, -12, -14, -17, -19, 1, 4, 7, 10, 13, 16, 19, 22, -1, -4, -7, -10, -13, -16, -19,
18 -22, 1, 4, 7, 10, 14, 17, 20, 23, -1, -4, -7, -10, -14, -17, -20, -23, 1, 4, 8, 11, 15, 18, 22,
19 25, -1, -4, -8, -11, -15, -18, -22, -25, 2, 6, 10, 14, 18, 22, 26, 30, -2, -6, -10, -14, -18,
20 -22, -26, -30, 2, 6, 10, 14, 19, 23, 27, 31, -2, -6, -10, -14, -19, -23, -27, -31, 2, 6, 11,
21 15, 21, 25, 30, 34, -2, -6, -11, -15, -21, -25, -30, -34, 2, 7, 12, 17, 23, 28, 33, 38, -2, -7,
22 -12, -17, -23, -28, -33, -38, 2, 7, 13, 18, 25, 30, 36, 41, -2, -7, -13, -18, -25, -30, -36,
23 -41, 3, 9, 15, 21, 28, 34, 40, 46, -3, -9, -15, -21, -28, -34, -40, -46, 3, 10, 17, 24, 31, 38,
24 45, 52, -3, -10, -17, -24, -31, -38, -45, -52, 3, 10, 18, 25, 34, 41, 49, 56, -3, -10, -18,
25 -25, -34, -41, -49, -56, 4, 12, 21, 29, 38, 46, 55, 63, -4, -12, -21, -29, -38, -46, -55, -63,
26 4, 13, 22, 31, 41, 50, 59, 68, -4, -13, -22, -31, -41, -50, -59, -68, 5, 15, 25, 35, 46, 56,
27 66, 76, -5, -15, -25, -35, -46, -56, -66, -76, 5, 16, 27, 38, 50, 61, 72, 83, -5, -16, -27,
28 -38, -50, -61, -72, -83, 6, 18, 31, 43, 56, 68, 81, 93, -6, -18, -31, -43, -56, -68, -81, -93,
29 6, 19, 33, 46, 61, 74, 88, 101, -6, -19, -33, -46, -61, -74, -88, -101, 7, 22, 37, 52, 67, 82,
30 97, 112, -7, -22, -37, -52, -67, -82, -97, -112, 8, 24, 41, 57, 74, 90, 107, 123, -8, -24, -41,
31 -57, -74, -90, -107, -123, 9, 27, 45, 63, 82, 100, 118, 136, -9, -27, -45, -63, -82, -100,
32 -118, -136, 10, 30, 50, 70, 90, 110, 130, 150, -10, -30, -50, -70, -90, -110, -130, -150, 11,
33 33, 55, 77, 99, 121, 143, 165, -11, -33, -55, -77, -99, -121, -143, -165, 12, 36, 60, 84, 109,
34 133, 157, 181, -12, -36, -60, -84, -109, -133, -157, -181, 13, 39, 66, 92, 120, 146, 173, 199,
35 -13, -39, -66, -92, -120, -146, -173, -199, 14, 43, 73, 102, 132, 161, 191, 220, -14, -43, -73,
36 -102, -132, -161, -191, -220, 16, 48, 81, 113, 146, 178, 211, 243, -16, -48, -81, -113, -146,
37 -178, -211, -243, 17, 52, 88, 123, 160, 195, 231, 266, -17, -52, -88, -123, -160, -195, -231,
38 -266, 19, 58, 97, 136, 176, 215, 254, 293, -19, -58, -97, -136, -176, -215, -254, -293, 21, 64,
39 107, 150, 194, 237, 280, 323, -21, -64, -107, -150, -194, -237, -280, -323, 23, 70, 118, 165,
40 213, 260, 308, 355, -23, -70, -118, -165, -213, -260, -308, -355, 26, 78, 130, 182, 235, 287,
41 339, 391, -26, -78, -130, -182, -235, -287, -339, -391, 28, 85, 143, 200, 258, 315, 373, 430,
42 -28, -85, -143, -200, -258, -315, -373, -430, 31, 94, 157, 220, 284, 347, 410, 473, -31, -94,
43 -157, -220, -284, -347, -410, -473, 34, 103, 173, 242, 313, 382, 452, 521, -34, -103, -173,
44 -242, -313, -382, -452, -521, 38, 114, 191, 267, 345, 421, 498, 574, -38, -114, -191, -267,
45 -345, -421, -498, -574, 42, 126, 210, 294, 379, 463, 547, 631, -42, -126, -210, -294, -379,
46 -463, -547, -631, 46, 138, 231, 323, 417, 509, 602, 694, -46, -138, -231, -323, -417, -509,
47 -602, -694, 51, 153, 255, 357, 459, 561, 663, 765, -51, -153, -255, -357, -459, -561, -663,
48 -765, 56, 168, 280, 392, 505, 617, 729, 841, -56, -168, -280, -392, -505, -617, -729, -841, 61,
49 184, 308, 431, 555, 678, 802, 925, -61, -184, -308, -431, -555, -678, -802, -925, 68, 204, 340,
50 476, 612, 748, 884, 1020, -68, -204, -340, -476, -612, -748, -884, -1020, 74, 223, 373, 522,
51 672, 821, 971, 1120, -74, -223, -373, -522, -672, -821, -971, -1120, 82, 246, 411, 575, 740,
52 904, 1069, 1233, -82, -246, -411, -575, -740, -904, -1069, -1233, 90, 271, 452, 633, 814, 995,
53 1176, 1357, -90, -271, -452, -633, -814, -995, -1176, -1357, 99, 298, 497, 696, 895, 1094,
54 1293, 1492, -99, -298, -497, -696, -895, -1094, -1293, -1492, 109, 328, 547, 766, 985, 1204,
55 1423, 1642, -109, -328, -547, -766, -985, -1204, -1423, -1642, 120, 360, 601, 841, 1083, 1323,
56 1564, 1804, -120, -360, -601, -841, -1083, -1323, -1564, -1804, 132, 397, 662, 927, 1192, 1457,
57 1722, 1987, -132, -397, -662, -927, -1192, -1457, -1722, -1987, 145, 436, 728, 1019, 1311,
58 1602, 1894, 2185, -145, -436, -728, -1019, -1311, -1602, -1894, -2185, 160, 480, 801, 1121,
59 1442, 1762, 2083, 2403, -160, -480, -801, -1121, -1442, -1762, -2083, -2403, 176, 528, 881,
60 1233, 1587, 1939, 2292, 2644, -176, -528, -881, -1233, -1587, -1939, -2292, -2644, 194, 582,
61 970, 1358, 1746, 2134, 2522, 2910, -194, -582, -970, -1358, -1746, -2134, -2522, -2910, 213,
62 639, 1066, 1492, 1920, 2346, 2773, 3199, -213, -639, -1066, -1492, -1920, -2346, -2773, -3199,
63 234, 703, 1173, 1642, 2112, 2581, 3051, 3520, -234, -703, -1173, -1642, -2112, -2581, -3051,
64 -3520, 258, 774, 1291, 1807, 2324, 2840, 3357, 3873, -258, -774, -1291, -1807, -2324, -2840,
65 -3357, -3873, 284, 852, 1420, 1988, 2556, 3124, 3692, 4260, -284, -852, -1420, -1988, -2556,
66 -3124, -3692, -4260, 312, 936, 1561, 2185, 2811, 3435, 4060, 4684, -312, -936, -1561, -2185,
67 -2811, -3435, -4060, -4684, 343, 1030, 1717, 2404, 3092, 3779, 4466, 5153, -343, -1030, -1717,
68 -2404, -3092, -3779, -4466, -5153, 378, 1134, 1890, 2646, 3402, 4158, 4914, 5670, -378, -1134,
69 -1890, -2646, -3402, -4158, -4914, -5670, 415, 1246, 2078, 2909, 3742, 4573, 5405, 6236, -415,
70 -1246, -2078, -2909, -3742, -4573, -5405, -6236, 457, 1372, 2287, 3202, 4117, 5032, 5947, 6862,
71 -457, -1372, -2287, -3202, -4117, -5032, -5947, -6862, 503, 1509, 2516, 3522, 4529, 5535, 6542,
72 7548, -503, -1509, -2516, -3522, -4529, -5535, -6542, -7548, 553, 1660, 2767, 3874, 4981, 6088,
73 7195, 8302, -553, -1660, -2767, -3874, -4981, -6088, -7195, -8302, 608, 1825, 3043, 4260, 5479,
74 6696, 7914, 9131, -608, -1825, -3043, -4260, -5479, -6696, -7914, -9131, 669, 2008, 3348, 4687,
75 6027, 7366, 8706, 10045, -669, -2008, -3348, -4687, -6027, -7366, -8706, -10045, 736, 2209,
76 3683, 5156, 6630, 8103, 9577, 11050, -736, -2209, -3683, -5156, -6630, -8103, -9577, -11050,
77 810, 2431, 4052, 5673, 7294, 8915, 10536, 12157, -810, -2431, -4052, -5673, -7294, -8915,
78 -10536, -12157, 891, 2674, 4457, 6240, 8023, 9806, 11589, 13372, -891, -2674, -4457, -6240,
79 -8023, -9806, -11589, -13372, 980, 2941, 4902, 6863, 8825, 10786, 12747, 14708, -980, -2941,
80 -4902, -6863, -8825, -10786, -12747, -14708, 1078, 3235, 5393, 7550, 9708, 11865, 14023, 16180,
81 -1078, -3235, -5393, -7550, -9708, -11865, -14023, -16180, 1186, 3559, 5932, 8305, 10679,
82 13052, 15425, 17798, -1186, -3559, -5932, -8305, -10679, -13052, -15425, -17798, 1305, 3915,
83 6526, 9136, 11747, 14357, 16968, 19578, -1305, -3915, -6526, -9136, -11747, -14357, -16968,
84 -19578, 1435, 4306, 7178, 10049, 12922, 15793, 18665, 21536, -1435, -4306, -7178, -10049,
85 -12922, -15793, -18665, -21536, 1579, 4737, 7896, 11054, 14214, 17372, 20531, 23689, -1579,
86 -4737, -7896, -11054, -14214, -17372, -20531, -23689, 1737, 5211, 8686, 12160, 15636, 19110,
87 22585, 26059, -1737, -5211, -8686, -12160, -15636, -19110, -22585, -26059, 1911, 5733, 9555,
88 13377, 17200, 21022, 24844, 28666, -1911, -5733, -9555, -13377, -17200, -21022, -24844, -28666,
89 2102, 6306, 10511, 14715, 18920, 23124, 27329, 31533, -2102, -6306, -10511, -14715, -18920,
90 -23124, -27329, -31533, 2312, 6937, 11562, 16187, 20812, 25437, 30062, 34687, -2312, -6937,
91 -11562, -16187, -20812, -25437, -30062, -34687, 2543, 7630, 12718, 17805, 22893, 27980, 33068,
92 38155, -2543, -7630, -12718, -17805, -22893, -27980, -33068, -38155, 2798, 8394, 13990, 19586,
93 25183, 30779, 36375, 41971, -2798, -8394, -13990, -19586, -25183, -30779, -36375, -41971, 3077,
94 9232, 15388, 21543, 27700, 33855, 40011, 46166, -3077, -9232, -15388, -21543, -27700, -33855,
95 -40011, -46166, 3385, 10156, 16928, 23699, 30471, 37242, 44014, 50785, -3385, -10156, -16928,
96 -23699, -30471, -37242, -44014, -50785, 3724, 11172, 18621, 26069, 33518, 40966, 48415, 55863,
97 -3724, -11172, -18621, -26069, -33518, -40966, -48415, -55863, 4095, 12286, 20478, 28669,
98 36862, 45053, 53245, 61436, -4095, -12286, -20478, -28669, -36862, -45053, -53245, -61436,
99];