178 lines
9.9 KiB
C
178 lines
9.9 KiB
C
/* tables.c
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*
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* Here are MPEG1 Table B.8 and MPEG2 Table B.1 -- Layer III scalefactor bands.
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* Index into this using a method such as:
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* idx = fr_ps->header->sampling_frequency + (fr_ps->header->version * 3)
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*/
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#include "tables.h"
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const int shine_slen1_tab[16] = {0, 0, 0, 0, 3, 1, 1, 1,
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2, 2, 2, 3, 3, 3, 4, 4};
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const int shine_slen2_tab[16] = {0, 1, 2, 3, 0, 1, 2, 3,
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1, 2, 3, 1, 2, 3, 2, 3};
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/* Valid samplerates and bitrates. */
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const int samplerates[9] = {
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44100, 48000, 32000, /* MPEG-I */
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22050, 24000, 16000, /* MPEG-II */
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11025, 12000, 8000 /* MPEG-2.5 */
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};
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const int bitrates[16][4] = {
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/* MPEG version:
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* 2.5, reserved, II, I */
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{-1, -1, -1, -1}, {8, -1, 8, 32}, {16, -1, 16, 40},
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{24, -1, 24, 48}, {32, -1, 32, 56}, {40, -1, 40, 64},
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{48, -1, 48, 80}, {56, -1, 56, 96}, {64, -1, 64, 112},
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{-1, -1, 80, 128}, {-1, -1, 96, 160}, {-1, -1, 112, 192},
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{-1, -1, 128, 224}, {-1, -1, 144, 256}, {-1, -1, 160, 320},
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{-1, -1, -1, -1}};
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const int shine_scale_fact_band_index[9][23] = {
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/* MPEG-I */
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/* Table B.8.b: 44.1 kHz */
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{0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62,
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74, 90, 110, 134, 162, 196, 238, 288, 342, 418, 576},
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/* Table B.8.c: 48 kHz */
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{0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60,
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72, 88, 106, 128, 156, 190, 230, 276, 330, 384, 576},
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/* Table B.8.a: 32 kHz */
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{0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66,
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82, 102, 126, 156, 194, 240, 296, 364, 448, 550, 576},
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/* MPEG-II */
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/* Table B.2.b: 22.05 kHz */
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{0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96,
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116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576},
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/* Table B.2.c: 24 kHz */
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{0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96,
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114, 136, 162, 194, 232, 278, 330, 394, 464, 540, 576},
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/* Table B.2.a: 16 kHz */
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{0, 6, 12, 18, 24, 30, 36, 44, 45, 66, 80, 96,
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116, 140, 168, 200, 238, 248, 336, 396, 464, 522, 576},
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/* MPEG-2.5 */
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/* 11.025 kHz */
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{0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96,
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116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576},
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/* 12 kHz */
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{0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96,
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116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576},
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/* MPEG-2.5 8 kHz */
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{0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192,
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232, 280, 336, 400, 476, 566, 568, 570, 572, 574, 576},
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};
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/* note. 0.035781 is shine_enwindow maximum value */
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/* scale and convert to fixed point before storing */
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#define SHINE_EW(x) (int32_t)((double)(x)*0x7fffffff)
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#define SHINE_EW2(a, b) SHINE_EW(a), SHINE_EW(b)
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#define SHINE_EW10(a, b, c, d, e, f, g, h, i, j) \
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SHINE_EW2(a, b), SHINE_EW2(c, d), SHINE_EW2(e, f), SHINE_EW2(g, h), \
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SHINE_EW2(i, j)
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const int32_t shine_enwindow[] = {
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SHINE_EW10(0.000000, -0.000000, -0.000000, -0.000000, -0.000000, -0.000000,
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-0.000000, -0.000001, -0.000001, -0.000001),
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SHINE_EW10(-0.000001, -0.000001, -0.000001, -0.000002, -0.000002, -0.000002,
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-0.000002, -0.000003, -0.000003, -0.000003),
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SHINE_EW10(-0.000004, -0.000004, -0.000005, -0.000005, -0.000006, -0.000007,
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-0.000008, -0.000008, -0.000009, -0.000010),
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SHINE_EW10(-0.000011, -0.000012, -0.000014, -0.000015, -0.000017, -0.000018,
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-0.000020, -0.000021, -0.000023, -0.000025),
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SHINE_EW10(-0.000028, -0.000030, -0.000032, -0.000035, -0.000038, -0.000041,
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-0.000043, -0.000046, -0.000050, -0.000053),
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SHINE_EW10(-0.000056, -0.000060, -0.000063, -0.000066, -0.000070, -0.000073,
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-0.000077, -0.000081, -0.000084, -0.000087),
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SHINE_EW10(-0.000091, -0.000093, -0.000096, -0.000099, 0.000102, 0.000104,
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0.000106, 0.000107, 0.000108, 0.000109),
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SHINE_EW10(0.000109, 0.000108, 0.000107, 0.000105, 0.000103, 0.000099,
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0.000095, 0.000090, 0.000084, 0.000078),
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SHINE_EW10(0.000070, 0.000061, 0.000051, 0.000040, 0.000027, 0.000014,
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-0.000001, -0.000017, -0.000034, -0.000053),
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SHINE_EW10(-0.000073, -0.000094, -0.000116, -0.000140, -0.000165, -0.000191,
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-0.000219, -0.000247, -0.000277, -0.000308),
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SHINE_EW10(-0.000339, -0.000371, -0.000404, -0.000438, -0.000473, -0.000507,
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-0.000542, -0.000577, -0.000612, -0.000647),
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SHINE_EW10(-0.000681, -0.000714, -0.000747, -0.000779, -0.000810, -0.000839,
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-0.000866, -0.000892, -0.000915, -0.000936),
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SHINE_EW10(-0.000954, -0.000969, -0.000981, -0.000989, -0.000994, -0.000995,
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-0.000992, -0.000984, 0.000971, 0.000954),
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SHINE_EW10(0.000931, 0.000903, 0.000869, 0.000829, 0.000784, 0.000732,
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0.000674, 0.000610, 0.000539, 0.000463),
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SHINE_EW10(0.000379, 0.000288, 0.000192, 0.000088, -0.000021, -0.000137,
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-0.000260, -0.000388, -0.000522, -0.000662),
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SHINE_EW10(-0.000807, -0.000957, -0.001111, -0.001270, -0.001432, -0.001598,
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-0.001767, -0.001937, -0.002110, -0.002283),
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SHINE_EW10(-0.002457, -0.002631, -0.002803, -0.002974, -0.003142, -0.003307,
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-0.003467, -0.003623, -0.003772, -0.003914),
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SHINE_EW10(-0.004049, -0.004175, -0.004291, -0.004396, -0.004490, -0.004570,
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-0.004638, -0.004691, -0.004728, -0.004749),
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SHINE_EW10(-0.004752, -0.004737, -0.004703, -0.004649, -0.004574, -0.004477,
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-0.004358, -0.004215, -0.004049, -0.003859),
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SHINE_EW10(-0.003643, -0.003402, 0.003135, 0.002841, 0.002522, 0.002175,
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0.001801, 0.001400, 0.000971, 0.000516),
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SHINE_EW10(0.000033, -0.000476, -0.001012, -0.001574, -0.002162, -0.002774,
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-0.003411, -0.004072, -0.004756, -0.005462),
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SHINE_EW10(-0.006189, -0.006937, -0.007703, -0.008487, -0.009288, -0.010104,
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-0.010933, -0.011775, -0.012628, -0.013489),
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SHINE_EW10(-0.014359, -0.015234, -0.016113, -0.016994, -0.017876, -0.018757,
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-0.019634, -0.020507, -0.021372, -0.022229),
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SHINE_EW10(-0.023074, -0.023907, -0.024725, -0.025527, -0.026311, -0.027074,
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-0.027815, -0.028533, -0.029225, -0.029890),
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SHINE_EW10(-0.030527, -0.031133, -0.031707, -0.032248, -0.032755, -0.033226,
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-0.033660, -0.034056, -0.034413, -0.034730),
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SHINE_EW10(-0.035007, -0.035242, -0.035435, -0.035586, -0.035694, -0.035759,
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0.035781, 0.035759, 0.035694, 0.035586),
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SHINE_EW10(0.035435, 0.035242, 0.035007, 0.034730, 0.034413, 0.034056,
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0.033660, 0.033226, 0.032755, 0.032248),
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SHINE_EW10(0.031707, 0.031133, 0.030527, 0.029890, 0.029225, 0.028533,
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0.027815, 0.027074, 0.026311, 0.025527),
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SHINE_EW10(0.024725, 0.023907, 0.023074, 0.022229, 0.021372, 0.020507,
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0.019634, 0.018757, 0.017876, 0.016994),
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SHINE_EW10(0.016113, 0.015234, 0.014359, 0.013489, 0.012628, 0.011775,
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0.010933, 0.010104, 0.009288, 0.008487),
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SHINE_EW10(0.007703, 0.006937, 0.006189, 0.005462, 0.004756, 0.004072,
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0.003411, 0.002774, 0.002162, 0.001574),
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SHINE_EW10(0.001012, 0.000476, -0.000033, -0.000516, -0.000971, -0.001400,
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-0.001801, -0.002175, -0.002522, -0.002841),
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SHINE_EW10(0.003135, 0.003402, 0.003643, 0.003859, 0.004049, 0.004215,
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0.004358, 0.004477, 0.004574, 0.004649),
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SHINE_EW10(0.004703, 0.004737, 0.004752, 0.004749, 0.004728, 0.004691,
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0.004638, 0.004570, 0.004490, 0.004396),
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SHINE_EW10(0.004291, 0.004175, 0.004049, 0.003914, 0.003772, 0.003623,
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0.003467, 0.003307, 0.003142, 0.002974),
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SHINE_EW10(0.002803, 0.002631, 0.002457, 0.002283, 0.002110, 0.001937,
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0.001767, 0.001598, 0.001432, 0.001270),
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SHINE_EW10(0.001111, 0.000957, 0.000807, 0.000662, 0.000522, 0.000388,
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0.000260, 0.000137, 0.000021, -0.000088),
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SHINE_EW10(-0.000192, -0.000288, -0.000379, -0.000463, -0.000539, -0.000610,
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-0.000674, -0.000732, -0.000784, -0.000829),
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SHINE_EW10(-0.000869, -0.000903, -0.000931, -0.000954, 0.000971, 0.000984,
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0.000992, 0.000995, 0.000994, 0.000989),
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SHINE_EW10(0.000981, 0.000969, 0.000954, 0.000936, 0.000915, 0.000892,
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0.000866, 0.000839, 0.000810, 0.000779),
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SHINE_EW10(0.000747, 0.000714, 0.000681, 0.000647, 0.000612, 0.000577,
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0.000542, 0.000507, 0.000473, 0.000438),
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SHINE_EW10(0.000404, 0.000371, 0.000339, 0.000308, 0.000277, 0.000247,
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0.000219, 0.000191, 0.000165, 0.000140),
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SHINE_EW10(0.000116, 0.000094, 0.000073, 0.000053, 0.000034, 0.000017,
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0.000001, -0.000014, -0.000027, -0.000040),
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SHINE_EW10(-0.000051, -0.000061, -0.000070, -0.000078, -0.000084, -0.000090,
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-0.000095, -0.000099, -0.000103, -0.000105),
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SHINE_EW10(-0.000107, -0.000108, -0.000109, -0.000109, -0.000108, -0.000107,
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-0.000106, -0.000104, 0.000102, 0.000099),
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SHINE_EW10(0.000096, 0.000093, 0.000091, 0.000087, 0.000084, 0.000081,
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0.000077, 0.000073, 0.000070, 0.000066),
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SHINE_EW10(0.000063, 0.000060, 0.000056, 0.000053, 0.000050, 0.000046,
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0.000043, 0.000041, 0.000038, 0.000035),
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SHINE_EW10(0.000032, 0.000030, 0.000028, 0.000025, 0.000023, 0.000021,
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0.000020, 0.000018, 0.000017, 0.000015),
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SHINE_EW10(0.000014, 0.000012, 0.000011, 0.000010, 0.000009, 0.000008,
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0.000008, 0.000007, 0.000006, 0.000005),
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SHINE_EW10(0.000005, 0.000004, 0.000004, 0.000003, 0.000003, 0.000003,
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0.000002, 0.000002, 0.000002, 0.000002),
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SHINE_EW10(0.000001, 0.000001, 0.000001, 0.000001, 0.000001, 0.000001,
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0.000000, 0.000000, 0.000000, 0.000000),
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SHINE_EW2(0.000000, 0.000000)};
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