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/* MPEG/WAVE Sound library
(C) 1997 by Jung woo-jae */
// Mpegtable.cc
// It has tables for MPEG layer 1, 2 and a part of layer 3
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mpegsound.h"
// For header
const int Mpegtoraw::frequencies[2][3]=
{
{44100,48000,32000}, // MPEG 1
{22050,24000,16000} // MPEG 2
};
const int Mpegtoraw::bitrate[2][3][15]=
{
// MPEG 1
{{0,32,64,96,128,160,192,224,256,288,320,352,384,416,448},
{0,32,48,56,64,80,96,112,128,160,192,224,256,320,384},
{0,32,40,48,56,64,80,96,112,128,160,192,224,256,320}},
// MPEG 2
{{0,32,48,56,64,80,96,112,128,144,160,176,192,224,256},
{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160},
{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160}}
};
// Mpeg general table
const REAL Mpegtoraw::scalefactorstable[64] =
{
2.00000000000000, 1.58740105196820, 1.25992104989487, 1.00000000000000,
0.79370052598410, 0.62996052494744, 0.50000000000000, 0.39685026299205,
0.31498026247372, 0.25000000000000, 0.19842513149602, 0.15749013123686,
0.12500000000000, 0.09921256574801, 0.07874506561843, 0.06250000000000,
0.04960628287401, 0.03937253280921, 0.03125000000000, 0.02480314143700,
0.01968626640461, 0.01562500000000, 0.01240157071850, 0.00984313320230,
0.00781250000000, 0.00620078535925, 0.00492156660115, 0.00390625000000,
0.00310039267963, 0.00246078330058, 0.00195312500000, 0.00155019633981,
0.00123039165029, 0.00097656250000, 0.00077509816991, 0.00061519582514,
0.00048828125000, 0.00038754908495, 0.00030759791257, 0.00024414062500,
0.00019377454248, 0.00015379895629, 0.00012207031250, 0.00009688727124,
0.00007689947814, 0.00006103515625, 0.00004844363562, 0.00003844973907,
0.00003051757813, 0.00002422181781, 0.00001922486954, 0.00001525878906,
0.00001211090890, 0.00000961243477, 0.00000762939453, 0.00000605545445,
0.00000480621738, 0.00000381469727, 0.00000302772723, 0.00000240310869,
0.00000190734863, 0.00000151386361, 0.00000120155435, 0.00000000000000
};
const REAL Mpegtoraw::filter[512]=
{
0.000000000, -0.000442505, 0.003250122, -0.007003784,
0.031082153, -0.078628540, 0.100311279, -0.572036743,
1.144989014, 0.572036743, 0.100311279, 0.078628540,
0.031082153, 0.007003784, 0.003250122, 0.000442505,
-0.000015259, -0.000473022, 0.003326416, -0.007919312,
0.030517578, -0.084182739, 0.090927124, -0.600219727,
1.144287109, 0.543823242, 0.108856201, 0.073059082,
0.031478882, 0.006118774, 0.003173828, 0.000396729,
-0.000015259, -0.000534058, 0.003387451, -0.008865356,
0.029785156, -0.089706421, 0.080688477, -0.628295898,
1.142211914, 0.515609741, 0.116577148, 0.067520142,
0.031738281, 0.005294800, 0.003082275, 0.000366211,
-0.000015259, -0.000579834, 0.003433228, -0.009841919,
0.028884888, -0.095169067, 0.069595337, -0.656219482,
1.138763428, 0.487472534, 0.123474121, 0.061996460,
0.031845093, 0.004486084, 0.002990723, 0.000320435,
-0.000015259, -0.000625610, 0.003463745, -0.010848999,
0.027801514, -0.100540161, 0.057617188, -0.683914185,
1.133926392, 0.459472656, 0.129577637, 0.056533813,
0.031814575, 0.003723145, 0.002899170, 0.000289917,
-0.000015259, -0.000686646, 0.003479004, -0.011886597,
0.026535034, -0.105819702, 0.044784546, -0.711318970,
1.127746582, 0.431655884, 0.134887695, 0.051132202,
0.031661987, 0.003005981, 0.002792358, 0.000259399,
-0.000015259, -0.000747681, 0.003479004, -0.012939453,
0.025085449, -0.110946655, 0.031082153, -0.738372803,
1.120223999, 0.404083252, 0.139450073, 0.045837402,
0.031387329, 0.002334595, 0.002685547, 0.000244141,
-0.000030518, -0.000808716, 0.003463745, -0.014022827,
0.023422241, -0.115921021, 0.016510010, -0.765029907,
1.111373901, 0.376800537, 0.143264771, 0.040634155,
0.031005859, 0.001693726, 0.002578735, 0.000213623,
-0.000030518, -0.000885010, 0.003417969, -0.015121460,
0.021575928, -0.120697021, 0.001068115, -0.791213989,
1.101211548, 0.349868774, 0.146362305, 0.035552979,
0.030532837, 0.001098633, 0.002456665, 0.000198364,
-0.000030518, -0.000961304, 0.003372192, -0.016235352,
0.019531250, -0.125259399, -0.015228271, -0.816864014,
1.089782715, 0.323318481, 0.148773193, 0.030609131,
0.029937744, 0.000549316, 0.002349854, 0.000167847,
-0.000030518, -0.001037598, 0.003280640, -0.017349243,
0.017257690, -0.129562378, -0.032379150, -0.841949463,
1.077117920, 0.297210693, 0.150497437, 0.025817871,
0.029281616, 0.000030518, 0.002243042, 0.000152588,
-0.000045776, -0.001113892, 0.003173828, -0.018463135,
0.014801025, -0.133590698, -0.050354004, -0.866363525,
1.063217163, 0.271591187, 0.151596069, 0.021179199,
0.028533936, -0.000442505, 0.002120972, 0.000137329,
-0.000045776, -0.001205444, 0.003051758, -0.019577026,
0.012115479, -0.137298584, -0.069168091, -0.890090942,
1.048156738, 0.246505737, 0.152069092, 0.016708374,
0.027725220, -0.000869751, 0.002014160, 0.000122070,
-0.000061035, -0.001296997, 0.002883911, -0.020690918,
0.009231567, -0.140670776, -0.088775635, -0.913055420,
1.031936646, 0.221984863, 0.151962280, 0.012420654,
0.026840210, -0.001266479, 0.001907349, 0.000106812,
-0.000061035, -0.001388550, 0.002700806, -0.021789551,
0.006134033, -0.143676758, -0.109161377, -0.935195923,
1.014617920, 0.198059082, 0.151306152, 0.008316040,
0.025909424, -0.001617432, 0.001785278, 0.000106812,
-0.000076294, -0.001480103, 0.002487183, -0.022857666,
0.002822876, -0.146255493, -0.130310059, -0.956481934,
0.996246338, 0.174789429, 0.150115967, 0.004394531,
0.024932861, -0.001937866, 0.001693726, 0.000091553,
-0.000076294, -0.001586914, 0.002227783, -0.023910522,
-0.000686646, -0.148422241, -0.152206421, -0.976852417,
0.976852417, 0.152206421, 0.148422241, 0.000686646,
0.023910522, -0.002227783, 0.001586914, 0.000076294,
-0.000091553, -0.001693726, 0.001937866, -0.024932861,
-0.004394531, -0.150115967, -0.174789429, -0.996246338,
0.956481934, 0.130310059, 0.146255493, -0.002822876,
0.022857666, -0.002487183, 0.001480103, 0.000076294,
-0.000106812, -0.001785278, 0.001617432, -0.025909424,
-0.008316040, -0.151306152, -0.198059082, -1.014617920,
0.935195923, 0.109161377, 0.143676758, -0.006134033,
0.021789551, -0.002700806, 0.001388550, 0.000061035,
-0.000106812, -0.001907349, 0.001266479, -0.026840210,
-0.012420654, -0.151962280, -0.221984863, -1.031936646,
0.913055420, 0.088775635, 0.140670776, -0.009231567,
0.020690918, -0.002883911, 0.001296997, 0.000061035,
-0.000122070, -0.002014160, 0.000869751, -0.027725220,
-0.016708374, -0.152069092, -0.246505737, -1.048156738,
0.890090942, 0.069168091, 0.137298584, -0.012115479,
0.019577026, -0.003051758, 0.001205444, 0.000045776,
-0.000137329, -0.002120972, 0.000442505, -0.028533936,
-0.021179199, -0.151596069, -0.271591187, -1.063217163,
0.866363525, 0.050354004, 0.133590698, -0.014801025,
0.018463135, -0.003173828, 0.001113892, 0.000045776,
-0.000152588, -0.002243042, -0.000030518, -0.029281616,
-0.025817871, -0.150497437, -0.297210693, -1.077117920,
0.841949463, 0.032379150, 0.129562378, -0.017257690,
0.017349243, -0.003280640, 0.001037598, 0.000030518,
-0.000167847, -0.002349854, -0.000549316, -0.029937744,
-0.030609131, -0.148773193, -0.323318481, -1.089782715,
0.816864014, 0.015228271, 0.125259399, -0.019531250,
0.016235352, -0.003372192, 0.000961304, 0.000030518,
-0.000198364, -0.002456665, -0.001098633, -0.030532837,
-0.035552979, -0.146362305, -0.349868774, -1.101211548,
0.791213989, -0.001068115, 0.120697021, -0.021575928,
0.015121460, -0.003417969, 0.000885010, 0.000030518,
-0.000213623, -0.002578735, -0.001693726, -0.031005859,
-0.040634155, -0.143264771, -0.376800537, -1.111373901,
0.765029907, -0.016510010, 0.115921021, -0.023422241,
0.014022827, -0.003463745, 0.000808716, 0.000030518,
-0.000244141, -0.002685547, -0.002334595, -0.031387329,
-0.045837402, -0.139450073, -0.404083252, -1.120223999,
0.738372803, -0.031082153, 0.110946655, -0.025085449,
0.012939453, -0.003479004, 0.000747681, 0.000015259,
-0.000259399, -0.002792358, -0.003005981, -0.031661987,
-0.051132202, -0.134887695, -0.431655884, -1.127746582,
0.711318970, -0.044784546, 0.105819702, -0.026535034,
0.011886597, -0.003479004, 0.000686646, 0.000015259,
-0.000289917, -0.002899170, -0.003723145, -0.031814575,
-0.056533813, -0.129577637, -0.459472656, -1.133926392,
0.683914185, -0.057617188, 0.100540161, -0.027801514,
0.010848999, -0.003463745, 0.000625610, 0.000015259,
-0.000320435, -0.002990723, -0.004486084, -0.031845093,
-0.061996460, -0.123474121, -0.487472534, -1.138763428,
0.656219482, -0.069595337, 0.095169067, -0.028884888,
0.009841919, -0.003433228, 0.000579834, 0.000015259,
-0.000366211, -0.003082275, -0.005294800, -0.031738281,
-0.067520142, -0.116577148, -0.515609741, -1.142211914,
0.628295898, -0.080688477, 0.089706421, -0.029785156,
0.008865356, -0.003387451, 0.000534058, 0.000015259,
-0.000396729, -0.003173828, -0.006118774, -0.031478882,
-0.073059082, -0.108856201, -0.543823242, -1.144287109,
0.600219727, -0.090927124, 0.084182739, -0.030517578,
0.007919312, -0.003326416, 0.000473022, 0.000015259
};
REAL Mpegtoraw::hcos_64[16],
Mpegtoraw::hcos_32[ 8],
Mpegtoraw::hcos_16[ 4],
Mpegtoraw::hcos_8 [ 2],
Mpegtoraw::hcos_4;
|
