scalefactors.cc

ac3的解码程序

/*
  File: scalefactors.hh

*/
 
#include <stdio.h>
#include <stdlib.h>
#include <fstream.h>

#include "error.hh"
#include "debug.hh"
#include "util.hh"


#include "scalefactors.hh"

// Scalefactors for layer I and II, Annex 3-B.1 in ISO/IEC DIS 11172:
const real scalefactors[63] =
{
  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
};