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106 lines
6.4 KiB
Text
106 lines
6.4 KiB
Text
/*
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* libmad - MPEG audio decoder library
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* Copyright (C) 2000-2004 Underbit Technologies, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: sf_table.dat,v 1.7 2004/01/23 09:41:33 rob Exp $
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*/
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/*
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* These are the scalefactor values for Layer I and Layer II.
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* The values are from Table B.1 of ISO/IEC 11172-3.
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*
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* There is some error introduced by the 32-bit fixed-point representation;
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* the amount of error is shown. For 16-bit PCM output, this shouldn't be
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* too much of a problem.
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*
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* Strictly speaking, Table B.1 has only 63 entries (0-62), thus a strict
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* interpretation of ISO/IEC 11172-3 would suggest that a scalefactor index of
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* 63 is invalid. However, for better compatibility with current practices, we
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* add a 64th entry.
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*/
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MAD_F(0x20000000), /* 2.000000000000 => 2.000000000000, e 0.000000000000 */
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MAD_F(0x1965fea5), /* 1.587401051968 => 1.587401051074, e 0.000000000894 */
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MAD_F(0x1428a2fa), /* 1.259921049895 => 1.259921051562, e -0.000000001667 */
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MAD_F(0x10000000), /* 1.000000000000 => 1.000000000000, e 0.000000000000 */
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MAD_F(0x0cb2ff53), /* 0.793700525984 => 0.793700527400, e -0.000000001416 */
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MAD_F(0x0a14517d), /* 0.629960524947 => 0.629960525781, e -0.000000000833 */
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MAD_F(0x08000000), /* 0.500000000000 => 0.500000000000, e 0.000000000000 */
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MAD_F(0x06597fa9), /* 0.396850262992 => 0.396850261837, e 0.000000001155 */
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MAD_F(0x050a28be), /* 0.314980262474 => 0.314980261028, e 0.000000001446 */
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MAD_F(0x04000000), /* 0.250000000000 => 0.250000000000, e 0.000000000000 */
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MAD_F(0x032cbfd5), /* 0.198425131496 => 0.198425132781, e -0.000000001285 */
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MAD_F(0x0285145f), /* 0.157490131237 => 0.157490130514, e 0.000000000723 */
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MAD_F(0x02000000), /* 0.125000000000 => 0.125000000000, e 0.000000000000 */
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MAD_F(0x01965fea), /* 0.099212565748 => 0.099212564528, e 0.000000001220 */
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MAD_F(0x01428a30), /* 0.078745065618 => 0.078745067120, e -0.000000001501 */
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MAD_F(0x01000000), /* 0.062500000000 => 0.062500000000, e 0.000000000000 */
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MAD_F(0x00cb2ff5), /* 0.049606282874 => 0.049606282264, e 0.000000000610 */
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MAD_F(0x00a14518), /* 0.039372532809 => 0.039372533560, e -0.000000000751 */
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MAD_F(0x00800000), /* 0.031250000000 => 0.031250000000, e 0.000000000000 */
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MAD_F(0x006597fb), /* 0.024803141437 => 0.024803142995, e -0.000000001558 */
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MAD_F(0x0050a28c), /* 0.019686266405 => 0.019686266780, e -0.000000000375 */
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MAD_F(0x00400000), /* 0.015625000000 => 0.015625000000, e 0.000000000000 */
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MAD_F(0x0032cbfd), /* 0.012401570719 => 0.012401569635, e 0.000000001084 */
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MAD_F(0x00285146), /* 0.009843133202 => 0.009843133390, e -0.000000000188 */
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MAD_F(0x00200000), /* 0.007812500000 => 0.007812500000, e 0.000000000000 */
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MAD_F(0x001965ff), /* 0.006200785359 => 0.006200786680, e -0.000000001321 */
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MAD_F(0x001428a3), /* 0.004921566601 => 0.004921566695, e -0.000000000094 */
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MAD_F(0x00100000), /* 0.003906250000 => 0.003906250000, e 0.000000000000 */
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MAD_F(0x000cb2ff), /* 0.003100392680 => 0.003100391477, e 0.000000001202 */
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MAD_F(0x000a1451), /* 0.002460783301 => 0.002460781485, e 0.000000001816 */
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MAD_F(0x00080000), /* 0.001953125000 => 0.001953125000, e 0.000000000000 */
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MAD_F(0x00065980), /* 0.001550196340 => 0.001550197601, e -0.000000001262 */
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MAD_F(0x00050a29), /* 0.001230391650 => 0.001230392605, e -0.000000000955 */
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MAD_F(0x00040000), /* 0.000976562500 => 0.000976562500, e 0.000000000000 */
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MAD_F(0x00032cc0), /* 0.000775098170 => 0.000775098801, e -0.000000000631 */
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MAD_F(0x00028514), /* 0.000615195825 => 0.000615194440, e 0.000000001385 */
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MAD_F(0x00020000), /* 0.000488281250 => 0.000488281250, e 0.000000000000 */
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MAD_F(0x00019660), /* 0.000387549085 => 0.000387549400, e -0.000000000315 */
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MAD_F(0x0001428a), /* 0.000307597913 => 0.000307597220, e 0.000000000693 */
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MAD_F(0x00010000), /* 0.000244140625 => 0.000244140625, e 0.000000000000 */
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MAD_F(0x0000cb30), /* 0.000193774542 => 0.000193774700, e -0.000000000158 */
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MAD_F(0x0000a145), /* 0.000153798956 => 0.000153798610, e 0.000000000346 */
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MAD_F(0x00008000), /* 0.000122070313 => 0.000122070313, e 0.000000000000 */
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MAD_F(0x00006598), /* 0.000096887271 => 0.000096887350, e -0.000000000079 */
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MAD_F(0x000050a3), /* 0.000076899478 => 0.000076901168, e -0.000000001689 */
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MAD_F(0x00004000), /* 0.000061035156 => 0.000061035156, e 0.000000000000 */
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MAD_F(0x000032cc), /* 0.000048443636 => 0.000048443675, e -0.000000000039 */
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MAD_F(0x00002851), /* 0.000038449739 => 0.000038448721, e 0.000000001018 */
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MAD_F(0x00002000), /* 0.000030517578 => 0.000030517578, e 0.000000000000 */
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MAD_F(0x00001966), /* 0.000024221818 => 0.000024221838, e -0.000000000020 */
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MAD_F(0x00001429), /* 0.000019224870 => 0.000019226223, e -0.000000001354 */
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MAD_F(0x00001000), /* 0.000015258789 => 0.000015258789, e -0.000000000000 */
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MAD_F(0x00000cb3), /* 0.000012110909 => 0.000012110919, e -0.000000000010 */
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MAD_F(0x00000a14), /* 0.000009612435 => 0.000009611249, e 0.000000001186 */
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MAD_F(0x00000800), /* 0.000007629395 => 0.000007629395, e -0.000000000000 */
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MAD_F(0x00000659), /* 0.000006055454 => 0.000006053597, e 0.000000001858 */
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MAD_F(0x0000050a), /* 0.000004806217 => 0.000004805624, e 0.000000000593 */
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MAD_F(0x00000400), /* 0.000003814697 => 0.000003814697, e 0.000000000000 */
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MAD_F(0x0000032d), /* 0.000003027727 => 0.000003028661, e -0.000000000934 */
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MAD_F(0x00000285), /* 0.000002403109 => 0.000002402812, e 0.000000000296 */
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MAD_F(0x00000200), /* 0.000001907349 => 0.000001907349, e -0.000000000000 */
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MAD_F(0x00000196), /* 0.000001513864 => 0.000001512468, e 0.000000001396 */
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MAD_F(0x00000143), /* 0.000001201554 => 0.000001203269, e -0.000000001714 */
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MAD_F(0x00000000) /* this compatibility entry is not part of Table B.1 */
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