qc_table.h

00001 /*
00002  * libmad - MPEG audio decoder library
00003  * Copyright (C) 2000-2004 Underbit Technologies, Inc.
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018  *
00019  * $Id: qc_table.c,v 1.1 2010/11/23 20:12:57 andy Exp $
00020  */
00021 
00022 /*
00023  * These are the Layer II classes of quantization.
00024  * The table is derived from Table B.4 of ISO/IEC 11172-3.
00025  */
00026 
00027   {     3, 2,  5,
00028     MAD_F(0x15555555) /* 1.33333333333 => 1.33333333209, e  0.00000000124 */,
00029     MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e  0.00000000000 */ },
00030   {     5, 3,  7,
00031     MAD_F(0x1999999a) /* 1.60000000000 => 1.60000000149, e -0.00000000149 */,
00032     MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e  0.00000000000 */ },
00033   {     7, 0,  3,
00034     MAD_F(0x12492492) /* 1.14285714286 => 1.14285714179, e  0.00000000107 */,
00035     MAD_F(0x04000000) /* 0.25000000000 => 0.25000000000, e  0.00000000000 */ },
00036   {     9, 4, 10,
00037     MAD_F(0x1c71c71c) /* 1.77777777777 => 1.77777777612, e  0.00000000165 */,
00038     MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e  0.00000000000 */ },
00039   {    15, 0,  4,
00040     MAD_F(0x11111111) /* 1.06666666666 => 1.06666666642, e  0.00000000024 */,
00041     MAD_F(0x02000000) /* 0.12500000000 => 0.12500000000, e  0.00000000000 */ },
00042   {    31, 0,  5,
00043     MAD_F(0x10842108) /* 1.03225806452 => 1.03225806355, e  0.00000000097 */,
00044     MAD_F(0x01000000) /* 0.06250000000 => 0.06250000000, e  0.00000000000 */ },
00045   {    63, 0,  6,
00046     MAD_F(0x10410410) /* 1.01587301587 => 1.01587301493, e  0.00000000094 */,
00047     MAD_F(0x00800000) /* 0.03125000000 => 0.03125000000, e  0.00000000000 */ },
00048   {   127, 0,  7,
00049     MAD_F(0x10204081) /* 1.00787401575 => 1.00787401572, e  0.00000000003 */,
00050     MAD_F(0x00400000) /* 0.01562500000 => 0.01562500000, e  0.00000000000 */ },
00051   {   255, 0,  8,
00052     MAD_F(0x10101010) /* 1.00392156863 => 1.00392156839, e  0.00000000024 */,
00053     MAD_F(0x00200000) /* 0.00781250000 => 0.00781250000, e  0.00000000000 */ },
00054   {   511, 0,  9,
00055     MAD_F(0x10080402) /* 1.00195694716 => 1.00195694715, e  0.00000000001 */,
00056     MAD_F(0x00100000) /* 0.00390625000 => 0.00390625000, e  0.00000000000 */ },
00057   {  1023, 0, 10,
00058     MAD_F(0x10040100) /* 1.00097751711 => 1.00097751617, e  0.00000000094 */,
00059     MAD_F(0x00080000) /* 0.00195312500 => 0.00195312500, e  0.00000000000 */ },
00060   {  2047, 0, 11,
00061     MAD_F(0x10020040) /* 1.00048851979 => 1.00048851967, e  0.00000000012 */,
00062     MAD_F(0x00040000) /* 0.00097656250 => 0.00097656250, e  0.00000000000 */ },
00063   {  4095, 0, 12,
00064     MAD_F(0x10010010) /* 1.00024420024 => 1.00024420023, e  0.00000000001 */,
00065     MAD_F(0x00020000) /* 0.00048828125 => 0.00048828125, e  0.00000000000 */ },
00066   {  8191, 0, 13,
00067     MAD_F(0x10008004) /* 1.00012208522 => 1.00012208521, e  0.00000000001 */,
00068     MAD_F(0x00010000) /* 0.00024414063 => 0.00024414062, e  0.00000000000 */ },
00069   { 16383, 0, 14,
00070     MAD_F(0x10004001) /* 1.00006103888 => 1.00006103888, e -0.00000000000 */,
00071     MAD_F(0x00008000) /* 0.00012207031 => 0.00012207031, e -0.00000000000 */ },
00072   { 32767, 0, 15,
00073     MAD_F(0x10002000) /* 1.00003051851 => 1.00003051758, e  0.00000000093 */,
00074     MAD_F(0x00004000) /* 0.00006103516 => 0.00006103516, e  0.00000000000 */ },
00075   { 65535, 0, 16,
00076     MAD_F(0x10001000) /* 1.00001525902 => 1.00001525879, e  0.00000000023 */,
00077     MAD_F(0x00002000) /* 0.00003051758 => 0.00003051758, e  0.00000000000 */ }