Skip to content

GitLab

E
ESP32-audioI2S
Unverified Commit 72c18b37 authored by Wolle's avatar Wolle Committed by GitHub
Browse files
Options

Delete mp3_decoder.h

parent 0ee7136b
Show whitespace changes
Inline Side-by-side
Showing with 0 additions and 1184 deletions
src/audioI2S/mp3_decoder/mp3_decoder.h deleted 100644 → 0
View file @ 0ee7136b
// based om helix mp3 decoder
#pragma once
//#pragma GCC optimize ("O3")
#include "Arduino.h"
class HMP3Decoder{
public:
HMP3Decoder() {m_sMode=Stereo; m_MPEGVersion=MPEG1;}
~HMP3Decoder(){;}
private:
const unsigned short huffTable[4242] PROGMEM = {
/* huffTable01[9] */
0xf003, 0x3112, 0x3101, 0x2011, 0x2011, 0x1000, 0x1000, 0x1000, 0x1000,
/* huffTable02[65] */
0xf006, 0x6222, 0x6201, 0x5212, 0x5212, 0x5122, 0x5122, 0x5021, 0x5021, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
/* huffTable03[65] */
0xf006, 0x6222, 0x6201, 0x5212, 0x5212, 0x5122, 0x5122, 0x5021, 0x5021, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2101, 0x2101, 0x2101,
0x2101, 0x2101, 0x2101, 0x2101, 0x2101, 0x2101, 0x2101, 0x2101, 0x2101, 0x2101, 0x2101, 0x2101,
0x2101, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
/* huffTable05[257] */
0xf008, 0x8332, 0x8322, 0x7232, 0x7232, 0x6132, 0x6132, 0x6132, 0x6132, 0x7312, 0x7312, 0x7301,
0x7301, 0x7031, 0x7031, 0x7222, 0x7222, 0x6212, 0x6212, 0x6212, 0x6212, 0x6122, 0x6122, 0x6122,
0x6122, 0x6201, 0x6201, 0x6201, 0x6201, 0x6021, 0x6021, 0x6021, 0x6021, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
/* huffTable06[129] */
0xf007, 0x7332, 0x7301, 0x6322, 0x6322, 0x6232, 0x6232, 0x6031, 0x6031, 0x5312, 0x5312, 0x5312,
0x5312, 0x5132, 0x5132, 0x5132, 0x5132, 0x5222, 0x5222, 0x5222, 0x5222, 0x5201, 0x5201, 0x5201,
0x5201, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4122, 0x4122, 0x4122,
0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x4021, 0x4021, 0x4021, 0x4021, 0x4021, 0x4021, 0x4021,
0x4021, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000,
0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000,
/* huffTable07[110] */
0xf006, 0x0041, 0x0052, 0x005b, 0x0060, 0x0063, 0x0068, 0x006b, 0x6212, 0x5122, 0x5122, 0x6201,
0x6021, 0x4112, 0x4112, 0x4112, 0x4112, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0xf004, 0x4552, 0x4542, 0x4452, 0x4352, 0x3532, 0x3532,
0x3442, 0x3442, 0x3522, 0x3522, 0x3252, 0x3252, 0x2512, 0x2512, 0x2512, 0x2512, 0xf003, 0x2152,
0x2152, 0x3501, 0x3432, 0x2051, 0x2051, 0x3342, 0x3332, 0xf002, 0x2422, 0x2242, 0x1412, 0x1412,
0xf001, 0x1142, 0x1041, 0xf002, 0x2401, 0x2322, 0x2232, 0x2301, 0xf001, 0x1312, 0x1132, 0xf001,
0x1031, 0x1222,
/* huffTable08[280] */
0xf008, 0x0101, 0x010a, 0x010f, 0x8512, 0x8152, 0x0112, 0x0115, 0x8422, 0x8242, 0x8412, 0x7142,
0x7142, 0x8401, 0x8041, 0x8322, 0x8232, 0x8312, 0x8132, 0x8301, 0x8031, 0x6222, 0x6222, 0x6222,
0x6222, 0x6201, 0x6201, 0x6201, 0x6201, 0x6021, 0x6021, 0x6021, 0x6021, 0x4212, 0x4212, 0x4212,
0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212,
0x4212, 0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x4122,
0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112,
0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x2112, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0xf003, 0x3552, 0x3452, 0x2542, 0x2542, 0x1352, 0x1352,
0x1352, 0x1352, 0xf002, 0x2532, 0x2442, 0x1522, 0x1522, 0xf001, 0x1252, 0x1501, 0xf001, 0x1432,
0x1342, 0xf001, 0x1051, 0x1332,
/* huffTable09[93] */
0xf006, 0x0041, 0x004a, 0x004f, 0x0052, 0x0057, 0x005a, 0x6412, 0x6142, 0x6322, 0x6232, 0x5312,
0x5312, 0x5132, 0x5132, 0x6301, 0x6031, 0x5222, 0x5222, 0x5201, 0x5201, 0x4212, 0x4212, 0x4212,
0x4212, 0x4122, 0x4122, 0x4122, 0x4122, 0x4021, 0x4021, 0x4021, 0x4021, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3000, 0x3000, 0x3000,
0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0xf003, 0x3552, 0x3542, 0x2532, 0x2532, 0x2352, 0x2352,
0x3452, 0x3501, 0xf002, 0x2442, 0x2522, 0x2252, 0x2512, 0xf001, 0x1152, 0x1432, 0xf002, 0x1342,
0x1342, 0x2051, 0x2401, 0xf001, 0x1422, 0x1242, 0xf001, 0x1332, 0x1041,
/* huffTable10[320] */
0xf008, 0x0101, 0x010a, 0x010f, 0x0118, 0x011b, 0x0120, 0x0125, 0x8712, 0x8172, 0x012a, 0x012d,
0x0132, 0x8612, 0x8162, 0x8061, 0x0137, 0x013a, 0x013d, 0x8412, 0x8142, 0x8041, 0x8322, 0x8232,
0x8301, 0x7312, 0x7312, 0x7132, 0x7132, 0x7031, 0x7031, 0x7222, 0x7222, 0x6212, 0x6212, 0x6212,
0x6212, 0x6122, 0x6122, 0x6122, 0x6122, 0x6201, 0x6201, 0x6201, 0x6201, 0x6021, 0x6021, 0x6021,
0x6021, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112,
0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0xf003, 0x3772, 0x3762, 0x3672, 0x3752, 0x3572, 0x3662,
0x2742, 0x2742, 0xf002, 0x2472, 0x2652, 0x2562, 0x2732, 0xf003, 0x2372, 0x2372, 0x2642, 0x2642,
0x3552, 0x3452, 0x2362, 0x2362, 0xf001, 0x1722, 0x1272, 0xf002, 0x2462, 0x2701, 0x1071, 0x1071,
0xf002, 0x1262, 0x1262, 0x2542, 0x2532, 0xf002, 0x1601, 0x1601, 0x2352, 0x2442, 0xf001, 0x1632,
0x1622, 0xf002, 0x2522, 0x2252, 0x1512, 0x1512, 0xf002, 0x1152, 0x1152, 0x2432, 0x2342, 0xf001,
0x1501, 0x1051, 0xf001, 0x1422, 0x1242, 0xf001, 0x1332, 0x1401,
/* huffTable11[296] */
0xf008, 0x0101, 0x0106, 0x010f, 0x0114, 0x0117, 0x8722, 0x8272, 0x011c, 0x7172, 0x7172, 0x8712,
0x8071, 0x8632, 0x8362, 0x8061, 0x011f, 0x0122, 0x8512, 0x7262, 0x7262, 0x8622, 0x8601, 0x7612,
0x7612, 0x7162, 0x7162, 0x8152, 0x8432, 0x8051, 0x0125, 0x8422, 0x8242, 0x8412, 0x8142, 0x8401,
0x8041, 0x7322, 0x7322, 0x7232, 0x7232, 0x6312, 0x6312, 0x6312, 0x6312, 0x6132, 0x6132, 0x6132,
0x6132, 0x7301, 0x7301, 0x7031, 0x7031, 0x6222, 0x6222, 0x6222, 0x6222, 0x5122, 0x5122, 0x5122,
0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212,
0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x5201, 0x5201, 0x5201,
0x5201, 0x5201, 0x5201, 0x5201, 0x5201, 0x5021, 0x5021, 0x5021, 0x5021, 0x5021, 0x5021, 0x5021,
0x5021, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0x2000,
0x2000, 0x2000, 0x2000, 0x2000, 0x2000, 0xf002, 0x2772, 0x2762, 0x2672, 0x2572, 0xf003, 0x2662,
0x2662, 0x2742, 0x2742, 0x2472, 0x2472, 0x3752, 0x3552, 0xf002, 0x2652, 0x2562, 0x1732, 0x1732,
0xf001, 0x1372, 0x1642, 0xf002, 0x2542, 0x2452, 0x2532, 0x2352, 0xf001, 0x1462, 0x1701, 0xf001,
0x1442, 0x1522, 0xf001, 0x1252, 0x1501, 0xf001, 0x1342, 0x1332,
/* huffTable12[185] */
0xf007, 0x0081, 0x008a, 0x008f, 0x0092, 0x0097, 0x009a, 0x009d, 0x00a2, 0x00a5, 0x00a8, 0x7622,
0x7262, 0x7162, 0x00ad, 0x00b0, 0x00b3, 0x7512, 0x7152, 0x7432, 0x7342, 0x00b6, 0x7422, 0x7242,
0x7412, 0x6332, 0x6332, 0x6142, 0x6142, 0x6322, 0x6322, 0x6232, 0x6232, 0x7041, 0x7301, 0x6031,
0x6031, 0x5312, 0x5312, 0x5312, 0x5312, 0x5132, 0x5132, 0x5132, 0x5132, 0x5222, 0x5222, 0x5222,
0x5222, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4212, 0x4122, 0x4122, 0x4122,
0x4122, 0x4122, 0x4122, 0x4122, 0x4122, 0x5201, 0x5201, 0x5201, 0x5201, 0x5021, 0x5021, 0x5021,
0x5021, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3101,
0x3101, 0x3101, 0x3101, 0x3101, 0x3101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0xf003, 0x3772, 0x3762,
0x2672, 0x2672, 0x2752, 0x2752, 0x2572, 0x2572, 0xf002, 0x2662, 0x2742, 0x2472, 0x2562, 0xf001,
0x1652, 0x1732, 0xf002, 0x2372, 0x2552, 0x1722, 0x1722, 0xf001, 0x1272, 0x1642, 0xf001, 0x1462,
0x1712, 0xf002, 0x1172, 0x1172, 0x2701, 0x2071, 0xf001, 0x1632, 0x1362, 0xf001, 0x1542, 0x1452,
0xf002, 0x1442, 0x1442, 0x2601, 0x2501, 0xf001, 0x1612, 0x1061, 0xf001, 0x1532, 0x1352, 0xf001,
0x1522, 0x1252, 0xf001, 0x1051, 0x1401,
/* huffTable13[497] */
0xf006, 0x0041, 0x0082, 0x00c3, 0x00e4, 0x0105, 0x0116, 0x011f, 0x0130, 0x0139, 0x013e, 0x0143,
0x0146, 0x6212, 0x6122, 0x6201, 0x6021, 0x4112, 0x4112, 0x4112, 0x4112, 0x4101, 0x4101, 0x4101,
0x4101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0xf006, 0x0108, 0x0111, 0x011a, 0x0123, 0x012c, 0x0131,
0x0136, 0x013f, 0x0144, 0x0147, 0x014c, 0x0151, 0x0156, 0x015b, 0x6f12, 0x61f2, 0x60f1, 0x0160,
0x0163, 0x0166, 0x62e2, 0x0169, 0x6e12, 0x61e2, 0x016c, 0x016f, 0x0172, 0x0175, 0x0178, 0x017b,
0x66c2, 0x6d32, 0x017e, 0x6d22, 0x62d2, 0x6d12, 0x67b2, 0x0181, 0x0184, 0x63c2, 0x0187, 0x6b42,
0x51d2, 0x51d2, 0x6d01, 0x60d1, 0x6a82, 0x68a2, 0x6c42, 0x64c2, 0x6b62, 0x66b2, 0x5c32, 0x5c32,
0x5c22, 0x5c22, 0x52c2, 0x52c2, 0x5b52, 0x5b52, 0x65b2, 0x6982, 0x5c12, 0x5c12, 0xf006, 0x51c2,
0x51c2, 0x6892, 0x6c01, 0x50c1, 0x50c1, 0x64b2, 0x6a62, 0x66a2, 0x6972, 0x5b32, 0x5b32, 0x53b2,
0x53b2, 0x6882, 0x6a52, 0x5b22, 0x5b22, 0x65a2, 0x6962, 0x54a2, 0x54a2, 0x6872, 0x6782, 0x5492,
0x5492, 0x6772, 0x6672, 0x42b2, 0x42b2, 0x42b2, 0x42b2, 0x4b12, 0x4b12, 0x4b12, 0x4b12, 0x41b2,
0x41b2, 0x41b2, 0x41b2, 0x5b01, 0x5b01, 0x50b1, 0x50b1, 0x5692, 0x5692, 0x5a42, 0x5a42, 0x5a32,
0x5a32, 0x53a2, 0x53a2, 0x5952, 0x5952, 0x5592, 0x5592, 0x4a22, 0x4a22, 0x4a22, 0x4a22, 0x42a2,
0x42a2, 0x42a2, 0x42a2, 0xf005, 0x4a12, 0x4a12, 0x41a2, 0x41a2, 0x5a01, 0x5862, 0x40a1, 0x40a1,
0x5682, 0x5942, 0x4392, 0x4392, 0x5932, 0x5852, 0x5582, 0x5762, 0x4922, 0x4922, 0x4292, 0x4292,
0x5752, 0x5572, 0x4832, 0x4832, 0x4382, 0x4382, 0x5662, 0x5742, 0x5472, 0x5652, 0x5562, 0x5372,
0xf005, 0x3912, 0x3912, 0x3912, 0x3912, 0x3192, 0x3192, 0x3192, 0x3192, 0x4901, 0x4901, 0x4091,
0x4091, 0x4842, 0x4842, 0x4482, 0x4482, 0x4272, 0x4272, 0x5642, 0x5462, 0x3822, 0x3822, 0x3822,
0x3822, 0x3282, 0x3282, 0x3282, 0x3282, 0x3812, 0x3812, 0x3812, 0x3812, 0xf004, 0x4732, 0x4722,
0x3712, 0x3712, 0x3172, 0x3172, 0x4552, 0x4701, 0x4071, 0x4632, 0x4362, 0x4542, 0x4452, 0x4622,
0x4262, 0x4532, 0xf003, 0x2182, 0x2182, 0x3801, 0x3081, 0x3612, 0x3162, 0x3601, 0x3061, 0xf004,
0x4352, 0x4442, 0x3522, 0x3522, 0x3252, 0x3252, 0x3501, 0x3501, 0x2512, 0x2512, 0x2512, 0x2512,
0x2152, 0x2152, 0x2152, 0x2152, 0xf003, 0x3432, 0x3342, 0x3051, 0x3422, 0x3242, 0x3332, 0x2412,
0x2412, 0xf002, 0x1142, 0x1142, 0x2401, 0x2041, 0xf002, 0x2322, 0x2232, 0x1312, 0x1312, 0xf001,
0x1132, 0x1301, 0xf001, 0x1031, 0x1222, 0xf003, 0x0082, 0x008b, 0x008e, 0x0091, 0x0094, 0x0097,
0x3ce2, 0x3dd2, 0xf003, 0x0093, 0x3eb2, 0x3be2, 0x3f92, 0x39f2, 0x3ae2, 0x3db2, 0x3bd2, 0xf003,
0x3f82, 0x38f2, 0x3cc2, 0x008d, 0x3e82, 0x0090, 0x27f2, 0x27f2, 0xf003, 0x2ad2, 0x2ad2, 0x3da2,
0x3cb2, 0x3bc2, 0x36f2, 0x2f62, 0x2f62, 0xf002, 0x28e2, 0x2f52, 0x2d92, 0x29d2, 0xf002, 0x25f2,
0x27e2, 0x2ca2, 0x2bb2, 0xf003, 0x2f42, 0x2f42, 0x24f2, 0x24f2, 0x3ac2, 0x36e2, 0x23f2, 0x23f2,
0xf002, 0x1f32, 0x1f32, 0x2d82, 0x28d2, 0xf001, 0x1f22, 0x12f2, 0xf002, 0x2e62, 0x2c92, 0x1f01,
0x1f01, 0xf002, 0x29c2, 0x2e52, 0x1ba2, 0x1ba2, 0xf002, 0x2d72, 0x27d2, 0x1e42, 0x1e42, 0xf002,
0x28c2, 0x26d2, 0x1e32, 0x1e32, 0xf002, 0x19b2, 0x19b2, 0x2b92, 0x2aa2, 0xf001, 0x1ab2, 0x15e2,
0xf001, 0x14e2, 0x1c82, 0xf001, 0x1d62, 0x13e2, 0xf001, 0x1e22, 0x1e01, 0xf001, 0x10e1, 0x1d52,
0xf001, 0x15d2, 0x1c72, 0xf001, 0x17c2, 0x1d42, 0xf001, 0x1b82, 0x18b2, 0xf001, 0x14d2, 0x1a92,
0xf001, 0x19a2, 0x1c62, 0xf001, 0x13d2, 0x1b72, 0xf001, 0x1c52, 0x15c2, 0xf001, 0x1992, 0x1a72,
0xf001, 0x17a2, 0x1792, 0xf003, 0x0023, 0x3df2, 0x2de2, 0x2de2, 0x1ff2, 0x1ff2, 0x1ff2, 0x1ff2,
0xf001, 0x1fe2, 0x1fd2, 0xf001, 0x1ee2, 0x1fc2, 0xf001, 0x1ed2, 0x1fb2, 0xf001, 0x1bf2, 0x1ec2,
0xf002, 0x1cd2, 0x1cd2, 0x2fa2, 0x29e2, 0xf001, 0x1af2, 0x1dc2, 0xf001, 0x1ea2, 0x1e92, 0xf001,
0x1f72, 0x1e72, 0xf001, 0x1ef2, 0x1cf2,
/* huffTable15[580] */
0xf008, 0x0101, 0x0122, 0x0143, 0x0154, 0x0165, 0x0176, 0x017f, 0x0188, 0x0199, 0x01a2, 0x01ab,
0x01b4, 0x01bd, 0x01c2, 0x01cb, 0x01d4, 0x01d9, 0x01de, 0x01e3, 0x01e8, 0x01ed, 0x01f2, 0x01f7,
0x01fc, 0x0201, 0x0204, 0x0207, 0x020a, 0x020f, 0x0212, 0x0215, 0x021a, 0x021d, 0x0220, 0x8192,
0x0223, 0x0226, 0x0229, 0x022c, 0x022f, 0x8822, 0x8282, 0x8812, 0x8182, 0x0232, 0x0235, 0x0238,
0x023b, 0x8722, 0x8272, 0x8462, 0x8712, 0x8552, 0x8172, 0x023e, 0x8632, 0x8362, 0x8542, 0x8452,
0x8622, 0x8262, 0x8612, 0x0241, 0x8532, 0x7162, 0x7162, 0x8352, 0x8442, 0x7522, 0x7522, 0x7252,
0x7252, 0x7512, 0x7512, 0x7152, 0x7152, 0x8501, 0x8051, 0x7432, 0x7432, 0x7342, 0x7342, 0x7422,
0x7422, 0x7242, 0x7242, 0x7332, 0x7332, 0x6142, 0x6142, 0x6142, 0x6142, 0x7412, 0x7412, 0x7401,
0x7401, 0x6322, 0x6322, 0x6322, 0x6322, 0x6232, 0x6232, 0x6232, 0x6232, 0x7041, 0x7041, 0x7301,
0x7301, 0x6312, 0x6312, 0x6312, 0x6312, 0x6132, 0x6132, 0x6132, 0x6132, 0x6031, 0x6031, 0x6031,
0x6031, 0x5222, 0x5222, 0x5222, 0x5222, 0x5222, 0x5222, 0x5222, 0x5222, 0x5212, 0x5212, 0x5212,
0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122,
0x5122, 0x5201, 0x5201, 0x5201, 0x5201, 0x5201, 0x5201, 0x5201, 0x5201, 0x5021, 0x5021, 0x5021,
0x5021, 0x5021, 0x5021, 0x5021, 0x5021, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112, 0x3112,
0x3112, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101,
0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011,
0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x3000, 0x3000, 0x3000,
0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000,
0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0x3000,
0x3000, 0x3000, 0x3000, 0x3000, 0x3000, 0xf005, 0x5ff2, 0x5fe2, 0x5ef2, 0x5fd2, 0x4ee2, 0x4ee2,
0x5df2, 0x5fc2, 0x5cf2, 0x5ed2, 0x5de2, 0x5fb2, 0x4bf2, 0x4bf2, 0x5ec2, 0x5ce2, 0x4dd2, 0x4dd2,
0x4fa2, 0x4fa2, 0x4af2, 0x4af2, 0x4eb2, 0x4eb2, 0x4be2, 0x4be2, 0x4dc2, 0x4dc2, 0x4cd2, 0x4cd2,
0x4f92, 0x4f92, 0xf005, 0x49f2, 0x49f2, 0x4ae2, 0x4ae2, 0x4db2, 0x4db2, 0x4bd2, 0x4bd2, 0x4f82,
0x4f82, 0x48f2, 0x48f2, 0x4cc2, 0x4cc2, 0x4e92, 0x4e92, 0x49e2, 0x49e2, 0x4f72, 0x4f72, 0x47f2,
0x47f2, 0x4da2, 0x4da2, 0x4ad2, 0x4ad2, 0x4cb2, 0x4cb2, 0x4f62, 0x4f62, 0x5ea2, 0x5f01, 0xf004,
0x3bc2, 0x3bc2, 0x36f2, 0x36f2, 0x4e82, 0x48e2, 0x4f52, 0x4d92, 0x35f2, 0x35f2, 0x3e72, 0x3e72,
0x37e2, 0x37e2, 0x3ca2, 0x3ca2, 0xf004, 0x3ac2, 0x3ac2, 0x3bb2, 0x3bb2, 0x49d2, 0x4d82, 0x3f42,
0x3f42, 0x34f2, 0x34f2, 0x3f32, 0x3f32, 0x33f2, 0x33f2, 0x38d2, 0x38d2, 0xf004, 0x36e2, 0x36e2,
0x3f22, 0x3f22, 0x32f2, 0x32f2, 0x4e62, 0x40f1, 0x3f12, 0x3f12, 0x31f2, 0x31f2, 0x3c92, 0x3c92,
0x39c2, 0x39c2, 0xf003, 0x3e52, 0x3ba2, 0x3ab2, 0x35e2, 0x3d72, 0x37d2, 0x3e42, 0x34e2, 0xf003,
0x3c82, 0x38c2, 0x3e32, 0x3d62, 0x36d2, 0x33e2, 0x3b92, 0x39b2, 0xf004, 0x3e22, 0x3e22, 0x3aa2,
0x3aa2, 0x32e2, 0x32e2, 0x3e12, 0x3e12, 0x31e2, 0x31e2, 0x4e01, 0x40e1, 0x3d52, 0x3d52, 0x35d2,
0x35d2, 0xf003, 0x3c72, 0x37c2, 0x3d42, 0x3b82, 0x24d2, 0x24d2, 0x38b2, 0x3a92, 0xf003, 0x39a2,
0x3c62, 0x36c2, 0x3d32, 0x23d2, 0x23d2, 0x22d2, 0x22d2, 0xf003, 0x3d22, 0x3d01, 0x2d12, 0x2d12,
0x2b72, 0x2b72, 0x27b2, 0x27b2, 0xf003, 0x21d2, 0x21d2, 0x3c52, 0x30d1, 0x25c2, 0x25c2, 0x2a82,
0x2a82, 0xf002, 0x28a2, 0x2c42, 0x24c2, 0x2b62, 0xf003, 0x26b2, 0x26b2, 0x3992, 0x3c01, 0x2c32,
0x2c32, 0x23c2, 0x23c2, 0xf003, 0x2a72, 0x2a72, 0x27a2, 0x27a2, 0x26a2, 0x26a2, 0x30c1, 0x3b01,
0xf002, 0x12c2, 0x12c2, 0x2c22, 0x2b52, 0xf002, 0x25b2, 0x2c12, 0x2982, 0x2892, 0xf002, 0x21c2,
0x2b42, 0x24b2, 0x2a62, 0xf002, 0x2b32, 0x2972, 0x13b2, 0x13b2, 0xf002, 0x2792, 0x2882, 0x2b22,
0x2a52, 0xf002, 0x12b2, 0x12b2, 0x25a2, 0x2b12, 0xf002, 0x11b2, 0x11b2, 0x20b1, 0x2962, 0xf002,
0x2692, 0x2a42, 0x24a2, 0x2872, 0xf002, 0x2782, 0x2a32, 0x13a2, 0x13a2, 0xf001, 0x1952, 0x1592,
0xf001, 0x1a22, 0x12a2, 0xf001, 0x1a12, 0x11a2, 0xf002, 0x2a01, 0x20a1, 0x1862, 0x1862, 0xf001,
0x1682, 0x1942, 0xf001, 0x1492, 0x1932, 0xf002, 0x1392, 0x1392, 0x2772, 0x2901, 0xf001, 0x1852,
0x1582, 0xf001, 0x1922, 0x1762, 0xf001, 0x1672, 0x1292, 0xf001, 0x1912, 0x1091, 0xf001, 0x1842,
0x1482, 0xf001, 0x1752, 0x1572, 0xf001, 0x1832, 0x1382, 0xf001, 0x1662, 0x1742, 0xf001, 0x1472,
0x1801, 0xf001, 0x1081, 0x1652, 0xf001, 0x1562, 0x1732, 0xf001, 0x1372, 0x1642, 0xf001, 0x1701,
0x1071, 0xf001, 0x1601, 0x1061,
/* huffTable16[651] */
0xf008, 0x0101, 0x010a, 0x0113, 0x8ff2, 0x0118, 0x011d, 0x0120, 0x82f2, 0x0131, 0x8f12, 0x81f2,
0x0134, 0x0145, 0x0156, 0x0167, 0x0178, 0x0189, 0x019a, 0x01a3, 0x01ac, 0x01b5, 0x01be, 0x01c7,
0x01d0, 0x01d9, 0x01de, 0x01e3, 0x01e6, 0x01eb, 0x01f0, 0x8152, 0x01f3, 0x01f6, 0x01f9, 0x01fc,
0x8412, 0x8142, 0x01ff, 0x8322, 0x8232, 0x7312, 0x7312, 0x7132, 0x7132, 0x8301, 0x8031, 0x7222,
0x7222, 0x6212, 0x6212, 0x6212, 0x6212, 0x6122, 0x6122, 0x6122, 0x6122, 0x6201, 0x6201, 0x6201,
0x6201, 0x6021, 0x6021, 0x6021, 0x6021, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112,
0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4101, 0x4101, 0x4101,
0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101,
0x4101, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011,
0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x3011, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0x1000,
0x1000, 0x1000, 0x1000, 0x1000, 0x1000, 0xf003, 0x3fe2, 0x3ef2, 0x3fd2, 0x3df2, 0x3fc2, 0x3cf2,
0x3fb2, 0x3bf2, 0xf003, 0x2fa2, 0x2fa2, 0x3af2, 0x3f92, 0x39f2, 0x38f2, 0x2f82, 0x2f82, 0xf002,
0x2f72, 0x27f2, 0x2f62, 0x26f2, 0xf002, 0x2f52, 0x25f2, 0x1f42, 0x1f42, 0xf001, 0x14f2, 0x13f2,
0xf004, 0x10f1, 0x10f1, 0x10f1, 0x10f1, 0x10f1, 0x10f1, 0x10f1, 0x10f1, 0x2f32, 0x2f32, 0x2f32,
0x2f32, 0x00e2, 0x00f3, 0x00fc, 0x0105, 0xf001, 0x1f22, 0x1f01, 0xf004, 0x00fa, 0x00ff, 0x0104,
0x0109, 0x010c, 0x0111, 0x0116, 0x0119, 0x011e, 0x0123, 0x0128, 0x43e2, 0x012d, 0x0130, 0x0133,
0x0136, 0xf004, 0x0128, 0x012b, 0x012e, 0x4d01, 0x0131, 0x0134, 0x0137, 0x4c32, 0x013a, 0x4c12,
0x40c1, 0x013d, 0x32e2, 0x32e2, 0x4e22, 0x4e12, 0xf004, 0x43d2, 0x4d22, 0x42d2, 0x41d2, 0x4b32,
0x012f, 0x3d12, 0x3d12, 0x44c2, 0x4b62, 0x43c2, 0x47a2, 0x3c22, 0x3c22, 0x42c2, 0x45b2, 0xf004,
0x41c2, 0x4c01, 0x4b42, 0x44b2, 0x4a62, 0x46a2, 0x33b2, 0x33b2, 0x4a52, 0x45a2, 0x3b22, 0x3b22,
0x32b2, 0x32b2, 0x3b12, 0x3b12, 0xf004, 0x31b2, 0x31b2, 0x4b01, 0x40b1, 0x4962, 0x4692, 0x4a42,
0x44a2, 0x4872, 0x4782, 0x33a2, 0x33a2, 0x4a32, 0x4952, 0x3a22, 0x3a22, 0xf004, 0x4592, 0x4862,
0x31a2, 0x31a2, 0x4682, 0x4772, 0x3492, 0x3492, 0x4942, 0x4752, 0x3762, 0x3762, 0x22a2, 0x22a2,
0x22a2, 0x22a2, 0xf003, 0x2a12, 0x2a12, 0x3a01, 0x30a1, 0x3932, 0x3392, 0x3852, 0x3582, 0xf003,
0x2922, 0x2922, 0x2292, 0x2292, 0x3672, 0x3901, 0x2912, 0x2912, 0xf003, 0x2192, 0x2192, 0x3091,
0x3842, 0x3482, 0x3572, 0x3832, 0x3382, 0xf003, 0x3662, 0x3822, 0x2282, 0x2282, 0x3742, 0x3472,
0x2812, 0x2812, 0xf003, 0x2182, 0x2182, 0x2081, 0x2081, 0x3801, 0x3652, 0x2732, 0x2732, 0xf003,
0x2372, 0x2372, 0x3562, 0x3642, 0x2722, 0x2722, 0x2272, 0x2272, 0xf003, 0x3462, 0x3552, 0x2701,
0x2701, 0x1712, 0x1712, 0x1712, 0x1712, 0xf002, 0x1172, 0x1172, 0x2071, 0x2632, 0xf002, 0x2362,
0x2542, 0x2452, 0x2622, 0xf001, 0x1262, 0x1612, 0xf002, 0x1162, 0x1162, 0x2601, 0x2061, 0xf002,
0x1352, 0x1352, 0x2532, 0x2442, 0xf001, 0x1522, 0x1252, 0xf001, 0x1512, 0x1501, 0xf001, 0x1432,
0x1342, 0xf001, 0x1051, 0x1422, 0xf001, 0x1242, 0x1332, 0xf001, 0x1401, 0x1041, 0xf004, 0x4ec2,
0x0086, 0x3ed2, 0x3ed2, 0x39e2, 0x39e2, 0x4ae2, 0x49d2, 0x2ee2, 0x2ee2, 0x2ee2, 0x2ee2, 0x3de2,
0x3de2, 0x3be2, 0x3be2, 0xf003, 0x2eb2, 0x2eb2, 0x2dc2, 0x2dc2, 0x3cd2, 0x3bd2, 0x2ea2, 0x2ea2,
0xf003, 0x2cc2, 0x2cc2, 0x3da2, 0x3ad2, 0x3e72, 0x3ca2, 0x2ac2, 0x2ac2, 0xf003, 0x39c2, 0x3d72,
0x2e52, 0x2e52, 0x1db2, 0x1db2, 0x1db2, 0x1db2, 0xf002, 0x1e92, 0x1e92, 0x2cb2, 0x2bc2, 0xf002,
0x2e82, 0x28e2, 0x2d92, 0x27e2, 0xf002, 0x2bb2, 0x2d82, 0x28d2, 0x2e62, 0xf001, 0x16e2, 0x1c92,
0xf002, 0x2ba2, 0x2ab2, 0x25e2, 0x27d2, 0xf002, 0x1e42, 0x1e42, 0x24e2, 0x2c82, 0xf001, 0x18c2,
0x1e32, 0xf002, 0x1d62, 0x1d62, 0x26d2, 0x2b92, 0xf002, 0x29b2, 0x2aa2, 0x11e2, 0x11e2, 0xf002,
0x14d2, 0x14d2, 0x28b2, 0x29a2, 0xf002, 0x1b72, 0x1b72, 0x27b2, 0x20d1, 0xf001, 0x1e01, 0x10e1,
0xf001, 0x1d52, 0x15d2, 0xf001, 0x1c72, 0x17c2, 0xf001, 0x1d42, 0x1b82, 0xf001, 0x1a92, 0x1c62,
0xf001, 0x16c2, 0x1d32, 0xf001, 0x1c52, 0x15c2, 0xf001, 0x1a82, 0x18a2, 0xf001, 0x1992, 0x1c42,
0xf001, 0x16b2, 0x1a72, 0xf001, 0x1b52, 0x1982, 0xf001, 0x1892, 0x1972, 0xf001, 0x1792, 0x1882,
0xf001, 0x1ce2, 0x1dd2,
/* huffTable24[705] */
0xf009, 0x8fe2, 0x8fe2, 0x8ef2, 0x8ef2, 0x8fd2, 0x8fd2, 0x8df2, 0x8df2, 0x8fc2, 0x8fc2, 0x8cf2,
0x8cf2, 0x8fb2, 0x8fb2, 0x8bf2, 0x8bf2, 0x7af2, 0x7af2, 0x7af2, 0x7af2, 0x8fa2, 0x8fa2, 0x8f92,
0x8f92, 0x79f2, 0x79f2, 0x79f2, 0x79f2, 0x78f2, 0x78f2, 0x78f2, 0x78f2, 0x8f82, 0x8f82, 0x8f72,
0x8f72, 0x77f2, 0x77f2, 0x77f2, 0x77f2, 0x7f62, 0x7f62, 0x7f62, 0x7f62, 0x76f2, 0x76f2, 0x76f2,
0x76f2, 0x7f52, 0x7f52, 0x7f52, 0x7f52, 0x75f2, 0x75f2, 0x75f2, 0x75f2, 0x7f42, 0x7f42, 0x7f42,
0x7f42, 0x74f2, 0x74f2, 0x74f2, 0x74f2, 0x7f32, 0x7f32, 0x7f32, 0x7f32, 0x73f2, 0x73f2, 0x73f2,
0x73f2, 0x7f22, 0x7f22, 0x7f22, 0x7f22, 0x72f2, 0x72f2, 0x72f2, 0x72f2, 0x71f2, 0x71f2, 0x71f2,
0x71f2, 0x8f12, 0x8f12, 0x80f1, 0x80f1, 0x9f01, 0x0201, 0x0206, 0x020b, 0x0210, 0x0215, 0x021a,
0x021f, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2,
0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2,
0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x4ff2, 0x0224, 0x0229, 0x0232,
0x0237, 0x023a, 0x023f, 0x0242, 0x0245, 0x024a, 0x024d, 0x0250, 0x0253, 0x0256, 0x0259, 0x025c,
0x025f, 0x0262, 0x0265, 0x0268, 0x026b, 0x026e, 0x0271, 0x0274, 0x0277, 0x027a, 0x027d, 0x0280,
0x0283, 0x0288, 0x028b, 0x028e, 0x0291, 0x0294, 0x0297, 0x029a, 0x029f, 0x94b2, 0x02a4, 0x02a7,
0x02aa, 0x93b2, 0x9882, 0x02af, 0x92b2, 0x02b2, 0x02b5, 0x9692, 0x94a2, 0x02b8, 0x9782, 0x9a32,
0x93a2, 0x9952, 0x9592, 0x9a22, 0x92a2, 0x91a2, 0x9862, 0x9682, 0x9772, 0x9942, 0x9492, 0x9932,
0x9392, 0x9852, 0x9582, 0x9922, 0x9762, 0x9672, 0x9292, 0x9912, 0x9192, 0x9842, 0x9482, 0x9752,
0x9572, 0x9832, 0x9382, 0x9662, 0x9822, 0x9282, 0x9812, 0x9742, 0x9472, 0x9182, 0x02bb, 0x9652,
0x9562, 0x9712, 0x02be, 0x8372, 0x8372, 0x9732, 0x9722, 0x8272, 0x8272, 0x8642, 0x8642, 0x8462,
0x8462, 0x8552, 0x8552, 0x8172, 0x8172, 0x8632, 0x8632, 0x8362, 0x8362, 0x8542, 0x8542, 0x8452,
0x8452, 0x8622, 0x8622, 0x8262, 0x8262, 0x8612, 0x8612, 0x8162, 0x8162, 0x9601, 0x9061, 0x8532,
0x8532, 0x8352, 0x8352, 0x8442, 0x8442, 0x8522, 0x8522, 0x8252, 0x8252, 0x8512, 0x8512, 0x9501,
0x9051, 0x7152, 0x7152, 0x7152, 0x7152, 0x8432, 0x8432, 0x8342, 0x8342, 0x7422, 0x7422, 0x7422,
0x7422, 0x7242, 0x7242, 0x7242, 0x7242, 0x7332, 0x7332, 0x7332, 0x7332, 0x7412, 0x7412, 0x7412,
0x7412, 0x7142, 0x7142, 0x7142, 0x7142, 0x8401, 0x8401, 0x8041, 0x8041, 0x7322, 0x7322, 0x7322,
0x7322, 0x7232, 0x7232, 0x7232, 0x7232, 0x6312, 0x6312, 0x6312, 0x6312, 0x6312, 0x6312, 0x6312,
0x6312, 0x6132, 0x6132, 0x6132, 0x6132, 0x6132, 0x6132, 0x6132, 0x6132, 0x7301, 0x7301, 0x7301,
0x7301, 0x7031, 0x7031, 0x7031, 0x7031, 0x6222, 0x6222, 0x6222, 0x6222, 0x6222, 0x6222, 0x6222,
0x6222, 0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5212,
0x5212, 0x5212, 0x5212, 0x5212, 0x5212, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122,
0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x5122, 0x6201, 0x6201, 0x6201,
0x6201, 0x6201, 0x6201, 0x6201, 0x6201, 0x6021, 0x6021, 0x6021, 0x6021, 0x6021, 0x6021, 0x6021,
0x6021, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112,
0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112,
0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4112, 0x4101, 0x4101, 0x4101,
0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101,
0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4101,
0x4101, 0x4101, 0x4101, 0x4101, 0x4101, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011,
0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011,
0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011, 0x4011,
0x4011, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000,
0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000,
0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0x4000, 0xf002, 0x2ee2, 0x2ed2,
0x2de2, 0x2ec2, 0xf002, 0x2ce2, 0x2dd2, 0x2eb2, 0x2be2, 0xf002, 0x2dc2, 0x2cd2, 0x2ea2, 0x2ae2,
0xf002, 0x2db2, 0x2bd2, 0x2cc2, 0x2e92, 0xf002, 0x29e2, 0x2da2, 0x2ad2, 0x2cb2, 0xf002, 0x2bc2,
0x2e82, 0x28e2, 0x2d92, 0xf002, 0x29d2, 0x2e72, 0x27e2, 0x2ca2, 0xf002, 0x2ac2, 0x2bb2, 0x2d82,
0x28d2, 0xf003, 0x3e01, 0x30e1, 0x2d01, 0x2d01, 0x16e2, 0x16e2, 0x16e2, 0x16e2, 0xf002, 0x2e62,
0x2c92, 0x19c2, 0x19c2, 0xf001, 0x1e52, 0x1ab2, 0xf002, 0x15e2, 0x15e2, 0x2ba2, 0x2d72, 0xf001,
0x17d2, 0x14e2, 0xf001, 0x1c82, 0x18c2, 0xf002, 0x2e42, 0x2e22, 0x1e32, 0x1e32, 0xf001, 0x1d62,
0x16d2, 0xf001, 0x13e2, 0x1b92, 0xf001, 0x19b2, 0x1aa2, 0xf001, 0x12e2, 0x1e12, 0xf001, 0x11e2,
0x1d52, 0xf001, 0x15d2, 0x1c72, 0xf001, 0x17c2, 0x1d42, 0xf001, 0x1b82, 0x18b2, 0xf001, 0x14d2,
0x1a92, 0xf001, 0x19a2, 0x1c62, 0xf001, 0x16c2, 0x1d32, 0xf001, 0x13d2, 0x1d22, 0xf001, 0x12d2,
0x1d12, 0xf001, 0x1b72, 0x17b2, 0xf001, 0x11d2, 0x1c52, 0xf001, 0x15c2, 0x1a82, 0xf001, 0x18a2,
0x1992, 0xf001, 0x1c42, 0x14c2, 0xf001, 0x1b62, 0x16b2, 0xf002, 0x20d1, 0x2c01, 0x1c32, 0x1c32,
0xf001, 0x13c2, 0x1a72, 0xf001, 0x17a2, 0x1c22, 0xf001, 0x12c2, 0x1b52, 0xf001, 0x15b2, 0x1c12,
0xf001, 0x1982, 0x1892, 0xf001, 0x11c2, 0x1b42, 0xf002, 0x20c1, 0x2b01, 0x1b32, 0x1b32, 0xf002,
0x20b1, 0x2a01, 0x1a12, 0x1a12, 0xf001, 0x1a62, 0x16a2, 0xf001, 0x1972, 0x1792, 0xf002, 0x20a1,
0x2901, 0x1091, 0x1091, 0xf001, 0x1b22, 0x1a52, 0xf001, 0x15a2, 0x1b12, 0xf001, 0x11b2, 0x1962,
0xf001, 0x1a42, 0x1872, 0xf001, 0x1801, 0x1081, 0xf001, 0x1701, 0x1071,
};
/* pow(2,-i/4) * pow(j,4/3) for i=0..3 j=0..15, Q25 format */
const int pow43_14[4][16] PROGMEM = { /* Q28 */
{ 0x00000000, 0x10000000, 0x285145f3, 0x453a5cdb, 0x0cb2ff53, 0x111989d6,
0x15ce31c8, 0x1ac7f203, 0x20000000, 0x257106b9, 0x2b16b4a3, 0x30ed74b4,
0x36f23fa5, 0x3d227bd3, 0x437be656, 0x49fc823c, },
{ 0x00000000, 0x0d744fcd, 0x21e71f26, 0x3a36abd9, 0x0aadc084, 0x0e610e6e,
0x12560c1d, 0x168523cf, 0x1ae89f99, 0x1f7c03a4, 0x243bae49, 0x29249c67,
0x2e34420f, 0x33686f85, 0x38bf3dff, 0x3e370182, },
{ 0x00000000, 0x0b504f33, 0x1c823e07, 0x30f39a55, 0x08facd62, 0x0c176319,
0x0f6b3522, 0x12efe2ad, 0x16a09e66, 0x1a79a317, 0x1e77e301, 0x2298d5b4,
0x26da56fc, 0x2b3a902a, 0x2fb7e7e7, 0x3450f650, },
{ 0x00000000, 0x09837f05, 0x17f910d7, 0x2929c7a9, 0x078d0dfa, 0x0a2ae661,
0x0cf73154, 0x0fec91cb, 0x1306fe0a, 0x16434a6c, 0x199ee595, 0x1d17ae3d,
0x20abd76a, 0x2459d551, 0x28204fbb, 0x2bfe1808, },
};
/* pow(j,4/3) for j=16..63, Q23 format */
const int pow43[48] PROGMEM = {
0x1428a2fa, 0x15db1bd6, 0x1796302c, 0x19598d85, 0x1b24e8bb, 0x1cf7fcfa,
0x1ed28af2, 0x20b4582a, 0x229d2e6e, 0x248cdb55, 0x26832fda, 0x28800000,
0x2a832287, 0x2c8c70a8, 0x2e9bc5d8, 0x30b0ff99, 0x32cbfd4a, 0x34eca001,
0x3712ca62, 0x393e6088, 0x3b6f47e0, 0x3da56717, 0x3fe0a5fc, 0x4220ed72,
0x44662758, 0x46b03e7c, 0x48ff1e87, 0x4b52b3f3, 0x4daaebfd, 0x5007b497,
0x5268fc62, 0x54ceb29c, 0x5738c721, 0x59a72a59, 0x5c19cd35, 0x5e90a129,
0x610b9821, 0x638aa47f, 0x660db90f, 0x6894c90b, 0x6b1fc80c, 0x6daeaa0d,
0x70416360, 0x72d7e8b0, 0x75722ef9, 0x78102b85, 0x7ab1d3ec, 0x7d571e09,
};
const uint32_t polyCoef[264] PROGMEM = {
/* shuffled vs. original from 0, 1, ... 15 to 0, 15, 2, 13, ... 14, 1 */
0x00000000, 0x00000074, 0x00000354, 0x0000072c, 0x00001fd4, 0x00005084, 0x000066b8, 0x000249c4,
0x00049478, 0xfffdb63c, 0x000066b8, 0xffffaf7c, 0x00001fd4, 0xfffff8d4, 0x00000354, 0xffffff8c,
0xfffffffc, 0x00000068, 0x00000368, 0x00000644, 0x00001f40, 0x00004ad0, 0x00005d1c, 0x00022ce0,
0x000493c0, 0xfffd9960, 0x00006f78, 0xffffa9cc, 0x0000203c, 0xfffff7e4, 0x00000340, 0xffffff84,
0xfffffffc, 0x00000060, 0x00000378, 0x0000056c, 0x00001e80, 0x00004524, 0x000052a0, 0x00020ffc,
0x000491a0, 0xfffd7ca0, 0x00007760, 0xffffa424, 0x00002080, 0xfffff6ec, 0x00000328, 0xffffff74,
0xfffffffc, 0x00000054, 0x00000384, 0x00000498, 0x00001d94, 0x00003f7c, 0x00004744, 0x0001f32c,
0x00048e18, 0xfffd6008, 0x00007e70, 0xffff9e8c, 0x0000209c, 0xfffff5ec, 0x00000310, 0xffffff68,
0xfffffffc, 0x0000004c, 0x0000038c, 0x000003d0, 0x00001c78, 0x000039e4, 0x00003b00, 0x0001d680,
0x00048924, 0xfffd43ac, 0x000084b0, 0xffff990c, 0x00002094, 0xfffff4e4, 0x000002f8, 0xffffff5c,
0xfffffffc, 0x00000044, 0x00000390, 0x00000314, 0x00001b2c, 0x0000345c, 0x00002ddc, 0x0001ba04,
0x000482d0, 0xfffd279c, 0x00008a20, 0xffff93a4, 0x0000206c, 0xfffff3d4, 0x000002dc, 0xffffff4c,
0xfffffffc, 0x00000040, 0x00000390, 0x00000264, 0x000019b0, 0x00002ef0, 0x00001fd4, 0x00019dc8,
0x00047b1c, 0xfffd0be8, 0x00008ecc, 0xffff8e64, 0x00002024, 0xfffff2c0, 0x000002c0, 0xffffff3c,
0xfffffff8, 0x00000038, 0x0000038c, 0x000001bc, 0x000017fc, 0x0000299c, 0x000010e8, 0x000181d8,
0x0004720c, 0xfffcf09c, 0x000092b4, 0xffff894c, 0x00001fc0, 0xfffff1a4, 0x000002a4, 0xffffff2c,
0xfffffff8, 0x00000034, 0x00000380, 0x00000120, 0x00001618, 0x00002468, 0x00000118, 0x00016644,
0x000467a4, 0xfffcd5cc, 0x000095e0, 0xffff8468, 0x00001f44, 0xfffff084, 0x00000284, 0xffffff18,
0xfffffff8, 0x0000002c, 0x00000374, 0x00000090, 0x00001400, 0x00001f58, 0xfffff068, 0x00014b14,
0x00045bf0, 0xfffcbb88, 0x00009858, 0xffff7fbc, 0x00001ea8, 0xffffef60, 0x00000268, 0xffffff04,
0xfffffff8, 0x00000028, 0x0000035c, 0x00000008, 0x000011ac, 0x00001a70, 0xffffded8, 0x00013058,
0x00044ef8, 0xfffca1d8, 0x00009a1c, 0xffff7b54, 0x00001dfc, 0xffffee3c, 0x0000024c, 0xfffffef0,
0xfffffff4, 0x00000024, 0x00000340, 0xffffff8c, 0x00000f28, 0x000015b0, 0xffffcc70, 0x0001161c,
0x000440bc, 0xfffc88d8, 0x00009b3c, 0xffff7734, 0x00001d38, 0xffffed18, 0x0000022c, 0xfffffedc,
0xfffffff4, 0x00000020, 0x00000320, 0xffffff1c, 0x00000c68, 0x0000111c, 0xffffb92c, 0x0000fc6c,
0x00043150, 0xfffc708c, 0x00009bb8, 0xffff7368, 0x00001c64, 0xffffebf4, 0x00000210, 0xfffffec4,
0xfffffff0, 0x0000001c, 0x000002f4, 0xfffffeb4, 0x00000974, 0x00000cb8, 0xffffa518, 0x0000e350,
0x000420b4, 0xfffc5908, 0x00009b9c, 0xffff6ff4, 0x00001b7c, 0xffffead0, 0x000001f4, 0xfffffeac,
0xfffffff0, 0x0000001c, 0x000002c4, 0xfffffe58, 0x00000648, 0x00000884, 0xffff9038, 0x0000cad0,
0x00040ef8, 0xfffc425c, 0x00009af0, 0xffff6ce0, 0x00001a88, 0xffffe9b0, 0x000001d4, 0xfffffe94,
0xffffffec, 0x00000018, 0x0000028c, 0xfffffe04, 0x000002e4, 0x00000480, 0xffff7a90, 0x0000b2fc,
0x0003fc28, 0xfffc2c90, 0x000099b8, 0xffff6a3c, 0x00001988, 0xffffe898, 0x000001bc, 0xfffffe7c,
0x000001a0, 0x0000187c, 0x000097fc, 0x0003e84c, 0xffff6424, 0xffffff4c, 0x00000248, 0xffffffec,
};
/* format = Q30, range = [0.0981, 1.9976]
*
* n = 16;
* k = 0;
* for(i=0; i<5; i++, n=n/2) {
* for(p=0; p<n; p++, k++) {
* t = (PI / (4*n)) * (2*p + 1);
* coef32[k] = 2.0 * cos(t);
* }
* }
* coef32[30] *= 0.5; / *** for initial back butterfly (i.e. two-point DCT) *** /
*/
const int coef32[31] PROGMEM = {
0x7fd8878d, 0x7e9d55fc, 0x7c29fbee, 0x78848413, 0x73b5ebd0, 0x6dca0d14, 0x66cf811f, 0x5ed77c89,
0x55f5a4d2, 0x4c3fdff3, 0x41ce1e64, 0x36ba2013, 0x2b1f34eb, 0x1f19f97b, 0x12c8106e, 0x0647d97c,
0x7f62368f, 0x7a7d055b, 0x70e2cbc6, 0x62f201ac, 0x5133cc94, 0x3c56ba70, 0x25280c5d, 0x0c8bd35e,
0x7d8a5f3f, 0x6a6d98a4, 0x471cece6, 0x18f8b83c, 0x7641af3c, 0x30fbc54d, 0x2d413ccc,
};
/* let c(j) = cos(M_PI/36 * ((j)+0.5)), s(j) = sin(M_PI/36 * ((j)+0.5))
* then fastWin[2*j+0] = c(j)*(s(j) + c(j)), j = [0, 8]
* fastWin[2*j+1] = c(j)*(s(j) - c(j))
* format = Q30
*/
const uint32_t fastWin36[18] PROGMEM = {
0x42aace8b, 0xc2e92724, 0x47311c28, 0xc95f619a, 0x4a868feb, 0xd0859d8c,
0x4c913b51, 0xd8243ea0, 0x4d413ccc, 0xe0000000, 0x4c913b51, 0xe7dbc161,
0x4a868feb, 0xef7a6275, 0x47311c28, 0xf6a09e67, 0x42aace8b, 0xfd16d8dd
};
/* tables for quadruples
* format 0xAB
* A = length of codeword
* B = codeword
*/
const unsigned char quadTable[64+16] PROGMEM = {
/* table A */
0x6b, 0x6f, 0x6d, 0x6e, 0x67, 0x65, 0x59, 0x59, 0x56, 0x56, 0x53, 0x53, 0x5a, 0x5a, 0x5c, 0x5c,
0x42, 0x42, 0x42, 0x42, 0x41, 0x41, 0x41, 0x41, 0x44, 0x44, 0x44, 0x44, 0x48, 0x48, 0x48, 0x48,
0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
/* table B */
0x4f, 0x4e, 0x4d, 0x4c, 0x4b, 0x4a, 0x49, 0x48, 0x47, 0x46, 0x45, 0x44, 0x43, 0x42, 0x41, 0x40,
};
/* indexing = [version][layer][bitrate index]
* bitrate (kbps) of frame
* - bitrate index == 0 is "free" mode (bitrate determined on the fly by
* counting bits between successive sync words)
*/
const int/*short*/bitrateTab[3][3][15] PROGMEM = { {
/* MPEG-1 */
{ 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448 }, /* Layer 1 */
{ 0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384 }, /* Layer 2 */
{ 0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 }, /* Layer 3 */
}, {
/* MPEG-2 */
{ 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256 }, /* Layer 1 */
{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 }, /* Layer 2 */
{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 }, /* Layer 3 */
}, {
/* MPEG-2.5 */
{ 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256 }, /* Layer 1 */
{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 }, /* Layer 2 */
{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 }, /* Layer 3 */
}, };
/* indexing = [version][sampleRate][bitRate]
* for layer3, nSlots = floor(samps/frame * bitRate / sampleRate / 8)
* - add one pad slot if necessary
*/
const int/*short*/slotTab[3][3][15] PROGMEM = {
{ /* MPEG-1 */
{ 0, 104, 130, 156, 182, 208, 261, 313, 365, 417, 522, 626, 731, 835, 1044 }, /* 44 kHz */
{ 0, 96, 120, 144, 168, 192, 240, 288, 336, 384, 480, 576, 672, 768, 960 }, /* 48 kHz */
{ 0, 144, 180, 216, 252, 288, 360, 432, 504, 576, 720, 864, 1008, 1152, 1440 }, /* 32 kHz */
},
{ /* MPEG-2 */
{ 0, 26, 52, 78, 104, 130, 156, 182, 208, 261, 313, 365, 417, 470, 522 }, /* 22 kHz */
{ 0, 24, 48, 72, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480 }, /* 24 kHz */
{ 0, 36, 72, 108, 144, 180, 216, 252, 288, 360, 432, 504, 576, 648, 720 }, /* 16 kHz */
},
{ /* MPEG-2.5 */
{ 0, 52, 104, 156, 208, 261, 313, 365, 417, 522, 626, 731, 835, 940, 1044 }, /* 11 kHz */
{ 0, 48, 96, 144, 192, 240, 288, 336, 384, 480, 576, 672, 768, 864, 960 }, /* 12 kHz */
{ 0, 72, 144, 216, 288, 360, 432, 504, 576, 720, 864, 1008, 1152, 1296, 1440 }, /* 8 kHz */
},
};
const uint32_t imdctWin[4][36] PROGMEM = {
{
0x02aace8b, 0x07311c28, 0x0a868fec, 0x0c913b52, 0x0d413ccd, 0x0c913b52, 0x0a868fec, 0x07311c28,
0x02aace8b, 0xfd16d8dd, 0xf6a09e66, 0xef7a6275, 0xe7dbc161, 0xe0000000, 0xd8243e9f, 0xd0859d8b,
0xc95f619a, 0xc2e92723, 0xbd553175, 0xb8cee3d8, 0xb5797014, 0xb36ec4ae, 0xb2bec333, 0xb36ec4ae,
0xb5797014, 0xb8cee3d8, 0xbd553175, 0xc2e92723, 0xc95f619a, 0xd0859d8b, 0xd8243e9f, 0xe0000000,
0xe7dbc161, 0xef7a6275, 0xf6a09e66, 0xfd16d8dd },
{
0x02aace8b, 0x07311c28, 0x0a868fec, 0x0c913b52, 0x0d413ccd, 0x0c913b52, 0x0a868fec, 0x07311c28,
0x02aace8b, 0xfd16d8dd, 0xf6a09e66, 0xef7a6275, 0xe7dbc161, 0xe0000000, 0xd8243e9f, 0xd0859d8b,
0xc95f619a, 0xc2e92723, 0xbd44ef14, 0xb831a052, 0xb3aa3837, 0xafb789a4, 0xac6145bb, 0xa9adecdc,
0xa864491f, 0xad1868f0, 0xb8431f49, 0xc8f42236, 0xdda8e6b1, 0xf47755dc, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000 },
{
0x07311c28, 0x0d413ccd, 0x07311c28, 0xf6a09e66, 0xe0000000, 0xc95f619a, 0xb8cee3d8, 0xb2bec333,
0xb8cee3d8, 0xc95f619a, 0xe0000000, 0xf6a09e66, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000 },
{
0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x028e9709, 0x04855ec0,
0x026743a1, 0xfcde2c10, 0xf515dc82, 0xec93e53b, 0xe4c880f8, 0xdd5d0b08, 0xd63510b7, 0xcf5e834a,
0xc8e6b562, 0xc2da4105, 0xbd553175, 0xb8cee3d8, 0xb5797014, 0xb36ec4ae, 0xb2bec333, 0xb36ec4ae,
0xb5797014, 0xb8cee3d8, 0xbd553175, 0xc2e92723, 0xc95f619a, 0xd0859d8b, 0xd8243e9f, 0xe0000000,
0xe7dbc161, 0xef7a6275, 0xf6a09e66, 0xfd16d8dd },
};
const int ISFMpeg1[2][7] PROGMEM = {
{0x00000000, 0x0d8658ba, 0x176cf5d0, 0x20000000, 0x28930a2f, 0x3279a745, 0x40000000},
{0x00000000, 0x13207f5c, 0x2120fb83, 0x2d413ccc, 0x39617e16, 0x4761fa3d, 0x5a827999}
};
const int ISFMpeg2[2][2][16] PROGMEM = {
{ { /* intensityScale off, mid-side off */
0x40000000, 0x35d13f32, 0x2d413ccc, 0x260dfc14, 0x1fffffff, 0x1ae89f99, 0x16a09e66, 0x1306fe0a,
0x0fffffff, 0x0d744fcc, 0x0b504f33, 0x09837f05, 0x07ffffff, 0x06ba27e6, 0x05a82799, 0x04c1bf82 },
{ /* intensityScale off, mid-side on */
0x5a827999, 0x4c1bf827, 0x3fffffff, 0x35d13f32, 0x2d413ccc, 0x260dfc13, 0x1fffffff, 0x1ae89f99,
0x16a09e66, 0x1306fe09, 0x0fffffff, 0x0d744fcc, 0x0b504f33, 0x09837f04, 0x07ffffff, 0x06ba27e6 }, },
{ { /* intensityScale on, mid-side off */
0x40000000, 0x2d413ccc, 0x20000000, 0x16a09e66, 0x10000000, 0x0b504f33, 0x08000000, 0x05a82799,
0x04000000, 0x02d413cc, 0x02000000, 0x016a09e6, 0x01000000, 0x00b504f3, 0x00800000, 0x005a8279 },
{ /* intensityScale on, mid-side on */
0x5a827999, 0x3fffffff, 0x2d413ccc, 0x1fffffff, 0x16a09e66, 0x0fffffff, 0x0b504f33, 0x07ffffff,
0x05a82799, 0x03ffffff, 0x02d413cc, 0x01ffffff, 0x016a09e6, 0x00ffffff, 0x00b504f3, 0x007fffff } }
};
const uint32_t m_COS0_0 = 0x4013c251; /* Q31 */
const uint32_t m_COS0_1 = 0x40b345bd; /* Q31 */
const uint32_t m_COS0_2 = 0x41fa2d6d; /* Q31 */
const uint32_t m_COS0_3 = 0x43f93421; /* Q31 */
const uint32_t m_COS0_4 = 0x46cc1bc4; /* Q31 */
const uint32_t m_COS0_5 = 0x4a9d9cf0; /* Q31 */
const uint32_t m_COS0_6 = 0x4fae3711; /* Q31 */
const uint32_t m_COS0_7 = 0x56601ea7; /* Q31 */
const uint32_t m_COS0_8 = 0x5f4cf6eb; /* Q31 */
const uint32_t m_COS0_9 = 0x6b6fcf26; /* Q31 */
const uint32_t m_COS0_10= 0x7c7d1db3; /* Q31 */
const uint32_t m_COS0_11= 0x4ad81a97; /* Q30 */
const uint32_t m_COS0_12= 0x5efc8d96; /* Q30 */
const uint32_t m_COS0_13= 0x41d95790; /* Q29 */
const uint32_t m_COS0_14= 0x6d0b20cf; /* Q29 */
const uint32_t m_COS0_15= 0x518522fb; /* Q27 */
const uint32_t m_COS1_0 = 0x404f4672; /* Q31 */
const uint32_t m_COS1_1 = 0x42e13c10; /* Q31 */
const uint32_t m_COS1_2 = 0x48919f44; /* Q31 */
const uint32_t m_COS1_3 = 0x52cb0e63; /* Q31 */
const uint32_t m_COS1_4 = 0x64e2402e; /* Q31 */
const uint32_t m_COS1_5 = 0x43e224a9; /* Q30 */
const uint32_t m_COS1_6 = 0x6e3c92c1; /* Q30 */
const uint32_t m_COS1_7 = 0x519e4e04; /* Q28 */
const uint32_t m_COS2_0 = 0x4140fb46; /* Q31 */
const uint32_t m_COS2_1 = 0x4cf8de88; /* Q31 */
const uint32_t m_COS2_2 = 0x73326bbf; /* Q31 */
const uint32_t m_COS2_3 = 0x52036742; /* Q29 */
const uint32_t m_COS3_0 = 0x4545e9ef; /* Q31 */
const uint32_t m_COS3_1 = 0x539eba45; /* Q30 */
const uint32_t m_COS4_0 = 0x5a82799a; /* Q31 */
const uint32_t m_dcttab[48] PROGMEM = { // faster in ROM
/* first pass */
m_COS0_0, m_COS0_15, m_COS1_0, /* 31, 27, 31 */
m_COS0_1, m_COS0_14, m_COS1_1, /* 31, 29, 31 */
m_COS0_2, m_COS0_13, m_COS1_2, /* 31, 29, 31 */
m_COS0_3, m_COS0_12, m_COS1_3, /* 31, 30, 31 */
m_COS0_4, m_COS0_11, m_COS1_4, /* 31, 30, 31 */
m_COS0_5, m_COS0_10, m_COS1_5, /* 31, 31, 30 */
m_COS0_6, m_COS0_9, m_COS1_6, /* 31, 31, 30 */
m_COS0_7, m_COS0_8, m_COS1_7, /* 31, 31, 28 */
/* second pass */
m_COS2_0, m_COS2_3, m_COS3_0, /* 31, 29, 31 */
m_COS2_1, m_COS2_2, m_COS3_1, /* 31, 31, 30 */
-m_COS2_0, -m_COS2_3, m_COS3_0, /* 31, 29, 31 */
-m_COS2_1, -m_COS2_2, m_COS3_1, /* 31, 31, 30 */
m_COS2_0, m_COS2_3, m_COS3_0, /* 31, 29, 31 */
m_COS2_1, m_COS2_2, m_COS3_1, /* 31, 31, 30 */
-m_COS2_0, -m_COS2_3, m_COS3_0, /* 31, 29, 31 */
-m_COS2_1, -m_COS2_2, m_COS3_1, /* 31, 31, 30 */
};
const uint8_t m_SYNCWORDH =0xff;
const uint8_t m_SYNCWORDL =0xf0;
const uint8_t m_DQ_FRACBITS_OUT =25; // number of fraction bits in output of dequant
const uint8_t m_CSHIFT =12; // coefficients have 12 leading sign bits for early-terminating mulitplies
static const uint8_t m_HUFF_PAIRTABS =32;
const uint8_t m_SIBYTES_MPEG1_MONO =17;
const uint8_t m_SIBYTES_MPEG1_STEREO =32;
const uint8_t m_SIBYTES_MPEG2_MONO =9;
const uint8_t m_SIBYTES_MPEG2_STEREO =17;
const uint8_t m_IMDCT_SCALE =2; // additional scaling (by sqrt(2)) for fast IMDCT36
static const uint8_t m_BLOCK_SIZE =18;
static const uint8_t m_NBANDS =32;
static const uint8_t m_MAX_REORDER_SAMPS =(192-126)*3; // largest critical band for short blocks (see sfBandTable)
static const uint16_t m_VBUF_LENGTH =17*2* m_NBANDS; // for double-sized vbuf FIFO
static const uint8_t m_MAX_SCFBD =4; // max scalefactor bands per channel
const uint8_t m_NGRANS_MPEG1 =2;
const uint8_t m_NGRANS_MPEG2 =1;
static const uint16_t m_MAINBUF_SIZE =1940;
static const uint8_t m_MAX_NGRAN =2; // max granules
static const uint8_t m_MAX_NCHAN =2; // max channels
static const uint16_t m_MAX_NSAMP =576; // max samples per channel, per granule
const uint32_t m_SQRTHALF =0x5a82799a; // sqrt(0.5) in Q31 format
enum {
ERR_MP3_NONE = 0,
ERR_MP3_INDATA_UNDERFLOW = -1,
ERR_MP3_MAINDATA_UNDERFLOW = -2,
ERR_MP3_FREE_BITRATE_SYNC = -3,
ERR_MP3_OUT_OF_MEMORY = -4,
ERR_MP3_NULL_POINTER = -5,
ERR_MP3_INVALID_FRAMEHEADER = -6,
ERR_MP3_INVALID_SIDEINFO = -7,
ERR_MP3_INVALID_SCALEFACT = -8,
ERR_MP3_INVALID_HUFFCODES = -9,
ERR_MP3_INVALID_DEQUANTIZE = -10,
ERR_MP3_INVALID_IMDCT = -11,
ERR_MP3_INVALID_SUBBAND = -12,
ERR_UNKNOWN = -9999
};
typedef struct MP3FrameInfo {
int bitrate;
int nChans;
int samprate;
int bitsPerSample;
int outputSamps;
int layer;
int version;
} MP3FrameInfo_t;
typedef struct SFBandTable {
int/*short*/ l[23];
int/*short*/ s[14];
} SFBandTable_t;
typedef struct BitStreamInfo {
unsigned char *bytePtr;
unsigned int iCache;
int cachedBits;
int nBytes;
} BitStreamInfo_t;
typedef enum { /* map these to the corresponding 2-bit values in the frame header */
Stereo = 0x00, /* two independent channels, but L and R frames might have different # of bits */
Joint = 0x01, /* coupled channels - layer III: mix of M-S and intensity, Layers I/II: intensity and direct coding only */
Dual = 0x02, /* two independent channels, L and R always have exactly 1/2 the total bitrate */
Mono = 0x03 /* one channel */
} StereoMode_t;
typedef enum { /* map to 0,1,2 to make table indexing easier */
MPEG1 = 0,
MPEG2 = 1,
MPEG25 = 2
} MPEGVersion_t;
typedef struct FrameHeader {
int layer; /* layer index (1, 2, or 3) */
int crc; /* CRC flag: 0 = disabled, 1 = enabled */
int brIdx; /* bitrate index (0 - 15) */
int srIdx; /* sample rate index (0 - 2) */
int paddingBit; /* padding flag: 0 = no padding, 1 = single pad byte */
int privateBit; /* unused */
int modeExt; /* used to decipher joint stereo mode */
int copyFlag; /* copyright flag: 0 = no, 1 = yes */
int origFlag; /* original flag: 0 = copy, 1 = original */
int emphasis; /* deemphasis mode */
int CRCWord; /* CRC word (16 bits, 0 if crc not enabled) */
} FrameHeader_t;
typedef struct SideInfoSub {
int part23Length; /* number of bits in main data */
int nBigvals; /* 2x this = first set of Huffman cw's (maximum amplitude can be > 1) */
int globalGain; /* overall gain for dequantizer */
int sfCompress; /* unpacked to figure out number of bits in scale factors */
int winSwitchFlag; /* window switching flag */
int blockType; /* block type */
int mixedBlock; /* 0 = regular block (all short or long), 1 = mixed block */
int tableSelect[3]; /* index of Huffman tables for the big values regions */
int subBlockGain[3]; /* subblock gain offset, relative to global gain */
int region0Count; /* 1+region0Count = num scale factor bands in first region of bigvals */
int region1Count; /* 1+region1Count = num scale factor bands in second region of bigvals */
int preFlag; /* for optional high frequency boost */
int sfactScale; /* scaling of the scalefactors */
int count1TableSelect; /* index of Huffman table for quad codewords */
} SideInfoSub_t;
typedef struct SideInfo {
int mainDataBegin;
int privateBits;
int scfsi[m_MAX_NCHAN][m_MAX_SCFBD]; /* 4 scalefactor bands per channel */
} SideInfo_t;
typedef struct {
int cbType; /* pure long = 0, pure short = 1, mixed = 2 */
int cbEndS[3]; /* number nonzero short cb's, per subbblock */
int cbEndSMax; /* max of cbEndS[] */
int cbEndL; /* number nonzero long cb's */
} CriticalBandInfo_t;
typedef struct DequantInfo {
int workBuf[m_MAX_REORDER_SAMPS]; /* workbuf for reordering short blocks */
} DequantInfo_t;
typedef struct HuffmanInfo {
int huffDecBuf[m_MAX_NCHAN][m_MAX_NSAMP]; /* used both for decoded Huffman values and dequantized coefficients */
int nonZeroBound[m_MAX_NCHAN]; /* number of coeffs in huffDecBuf[ch] which can be > 0 */
int gb[m_MAX_NCHAN]; /* minimum number of guard bits in huffDecBuf[ch] */
} HuffmanInfo_t;
typedef enum HuffTabType {
noBits,
oneShot,
loopNoLinbits,
loopLinbits,
quadA,
quadB,
invalidTab
} HuffTabType_t;
typedef struct HuffTabLookup {
int linBits;
int tabType; /*HuffTabType*/
} HuffTabLookup_t;
typedef struct IMDCTInfo {
int outBuf[m_MAX_NCHAN][m_BLOCK_SIZE][m_NBANDS]; /* output of IMDCT */
int overBuf[m_MAX_NCHAN][m_MAX_NSAMP / 2]; /* overlap-add buffer (by symmetry, only need 1/2 size) */
int numPrevIMDCT[m_MAX_NCHAN]; /* how many IMDCT's calculated in this channel on prev. granule */
int prevType[m_MAX_NCHAN];
int prevWinSwitch[m_MAX_NCHAN];
int gb[m_MAX_NCHAN];
} IMDCTInfo_t;
typedef struct BlockCount {
int nBlocksLong;
int nBlocksTotal;
int nBlocksPrev;
int prevType;
int prevWinSwitch;
int currWinSwitch;
int gbIn;
int gbOut;
} BlockCount_t;
typedef struct ScaleFactorInfoSub { /* max bits in scalefactors = 5, so use char's to save space */
char l[23]; /* [band] */
char s[13][3]; /* [band][window] */
} ScaleFactorInfoSub_t;
typedef struct ScaleFactorJS { /* used in MPEG 2, 2.5 intensity (joint) stereo only */
int intensityScale;
int slen[4];
int nr[4];
} ScaleFactorJS_t;
/* NOTE - could get by with smaller vbuf if memory is more important than speed
* (in Subband, instead of replicating each block in FDCT32 you would do a memmove on the
* last 15 blocks to shift them down one, a hardware style FIFO)
*/
typedef struct SubbandInfo {
int vbuf[m_MAX_NCHAN * m_VBUF_LENGTH]; /* vbuf for fast DCT-based synthesis PQMF - double size for speed (no modulo indexing) */
int vindex; /* internal index for tracking position in vbuf */
} SubbandInfo_t;
typedef struct MP3DecInfo {
/* buffer which must be large enough to hold largest possible main_data section */
unsigned char mainBuf[m_MAINBUF_SIZE];
/* special info for "free" bitrate files */
int freeBitrateFlag;
int freeBitrateSlots;
/* user-accessible info */
int bitrate;
int nChans;
int samprate;
int nGrans; /* granules per frame */
int nGranSamps; /* samples per granule */
int nSlots;
int layer;
int mainDataBegin;
int mainDataBytes;
int part23Length[m_MAX_NGRAN][m_MAX_NCHAN];
} MP3DecInfo_t;
MP3FrameInfo_t m_MP3FrameInfo;
SFBandTable_t m_SFBandTable;
StereoMode_t m_sMode; /* mono/stereo mode */
MPEGVersion_t m_MPEGVersion; /* version ID */
FrameHeader_t m_FrameHeader;
SideInfoSub_t m_SideInfoSub[m_MAX_NGRAN][m_MAX_NCHAN];
SideInfo_t m_SideInfo;
CriticalBandInfo_t m_CriticalBandInfo[m_MAX_NCHAN]; /* filled in dequantizer, used in joint stereo reconstruction */
DequantInfo_t m_DequantInfo;
HuffmanInfo_t m_HuffmanInfo;
IMDCTInfo_t m_IMDCTInfo;
ScaleFactorInfoSub_t m_ScaleFactorInfoSub[m_MAX_NGRAN][m_MAX_NCHAN];
ScaleFactorJS_t m_ScaleFactorJS;
SubbandInfo_t m_SubbandInfo;
MP3DecInfo_t m_MP3DecInfo;
/* format = Q31
* #define M_PI 3.14159265358979323846
* double u = 2.0 * M_PI / 9.0;
* float c0 = sqrt(3.0) / 2.0;
* float c1 = cos(u);
* float c2 = cos(2*u);
* float c3 = sin(u);
* float c4 = sin(2*u);
*/
const int c9_0 = 0x6ed9eba1;
const int c9_1 = 0x620dbe8b;
const int c9_2 = 0x163a1a7e;
const int c9_3 = 0x5246dd49;
const int c9_4 = 0x7e0e2e32;
const int c3_0 = 0x6ed9eba1; /* format = Q31, cos(pi/6) */
const int c6[3] = { 0x7ba3751d, 0x5a82799a, 0x2120fb83 }; /* format = Q31, cos(((0:2) + 0.5) * (pi/6)) */
/* format = Q31
* cos(((0:8) + 0.5) * (pi/18))
*/
const uint32_t c18[9] = { 0x7f834ed0, 0x7ba3751d, 0x7401e4c1, 0x68d9f964, 0x5a82799a, 0x496af3e2, 0x36185aee, 0x2120fb83, 0x0b27eb5c};
/* scale factor lengths (num bits) */
const char m_SFLenTab[16][2] = { {0, 0}, {0, 1}, {0, 2}, {0, 3}, {3, 0}, {1, 1}, {1, 2}, {1, 3},
{2, 1}, {2, 2}, {2, 3}, {3, 1}, {3, 2}, {3, 3}, {4, 2}, {4, 3}};
/* NRTab[size + 3*is_right][block type][partition]
* block type index: 0 = (bt0,bt1,bt3), 1 = bt2 non-mixed, 2 = bt2 mixed
* partition: scale factor groups (sfb1 through sfb4)
* for block type = 2 (mixed or non-mixed) / by 3 is rolled into this table
* (for 3 short blocks per long block)
* see 2.4.3.2 in MPEG 2 (low sample rate) spec
* stuff rolled into this table:
* NRTab[x][1][y] --> (NRTab[x][1][y]) / 3
* NRTab[x][2][>=1] --> (NRTab[x][2][>=1]) / 3 (first partition is long block)
*/
const char NRTab[6][3][4] = {
{{ 6, 5, 5, 5}, {3, 3, 3, 3}, {6, 3, 3, 3}},
{{ 6, 5, 7, 3}, {3, 3, 4, 2}, {6, 3, 4, 2}},
{{11, 10, 0, 0}, {6, 6, 0, 0}, {6, 3, 6, 0}},
{{ 7, 7, 7, 0}, {4, 4, 4, 0}, {6, 5, 4, 0}},
{{ 6, 6, 6, 3}, {4, 3, 3, 2}, {6, 4, 3, 2}},
{{ 8, 8, 5, 0}, {5, 4, 3, 0}, {6, 6, 3, 0}}
};
/* optional pre-emphasis for high-frequency scale factor bands */
const char preTab[22] = { 0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,3,3,3,2,0 };
/* pow(2,-i/4) for i=0..3, Q31 format */
const int pow14[4] PROGMEM = {
0x7fffffff, 0x6ba27e65, 0x5a82799a, 0x4c1bf829
};
/*
* Minimax polynomial approximation to pow(x, 4/3), over the range
* poly43lo: x = [0.5, 0.7071]
* poly43hi: x = [0.7071, 1.0]
*
* Relative error < 1E-7
* Coefs are scaled by 4, 2, 1, 0.5, 0.25
*/
const unsigned int poly43lo[5] PROGMEM = { 0x29a0bda9, 0xb02e4828, 0x5957aa1b, 0x236c498d, 0xff581859 };
const unsigned int poly43hi[5] PROGMEM = { 0x10852163, 0xd333f6a4, 0x46e9408b, 0x27c2cef0, 0xfef577b4 };
/* pow(2, i*4/3) as exp and frac */
const int pow2exp[8] PROGMEM = { 14, 13, 11, 10, 9, 7, 6, 5 };
const int pow2frac[8] PROGMEM = {
0x6597fa94, 0x50a28be6, 0x7fffffff, 0x6597fa94,
0x50a28be6, 0x7fffffff, 0x6597fa94, 0x50a28be6
};
const uint16_t m_HUFF_OFFSET_01= 0;
const uint16_t m_HUFF_OFFSET_02= 9 + m_HUFF_OFFSET_01;
const uint16_t m_HUFF_OFFSET_03= 65 + m_HUFF_OFFSET_02;
const uint16_t m_HUFF_OFFSET_05= 65 + m_HUFF_OFFSET_03;
const uint16_t m_HUFF_OFFSET_06=257 + m_HUFF_OFFSET_05;
const uint16_t m_HUFF_OFFSET_07=129 + m_HUFF_OFFSET_06;
const uint16_t m_HUFF_OFFSET_08=110 + m_HUFF_OFFSET_07;
const uint16_t m_HUFF_OFFSET_09=280 + m_HUFF_OFFSET_08;
const uint16_t m_HUFF_OFFSET_10= 93 + m_HUFF_OFFSET_09;
const uint16_t m_HUFF_OFFSET_11=320 + m_HUFF_OFFSET_10;
const uint16_t m_HUFF_OFFSET_12=296 + m_HUFF_OFFSET_11;
const uint16_t m_HUFF_OFFSET_13=185 + m_HUFF_OFFSET_12;
const uint16_t m_HUFF_OFFSET_15=497 + m_HUFF_OFFSET_13;
const uint16_t m_HUFF_OFFSET_16=580 + m_HUFF_OFFSET_15;
const uint16_t m_HUFF_OFFSET_24=651 + m_HUFF_OFFSET_16;
const int huffTabOffset[m_HUFF_PAIRTABS] PROGMEM = {
0, m_HUFF_OFFSET_01, m_HUFF_OFFSET_02, m_HUFF_OFFSET_03,
0, m_HUFF_OFFSET_05, m_HUFF_OFFSET_06, m_HUFF_OFFSET_07,
m_HUFF_OFFSET_08, m_HUFF_OFFSET_09, m_HUFF_OFFSET_10, m_HUFF_OFFSET_11,
m_HUFF_OFFSET_12, m_HUFF_OFFSET_13, 0, m_HUFF_OFFSET_15,
m_HUFF_OFFSET_16, m_HUFF_OFFSET_16, m_HUFF_OFFSET_16, m_HUFF_OFFSET_16,
m_HUFF_OFFSET_16, m_HUFF_OFFSET_16, m_HUFF_OFFSET_16, m_HUFF_OFFSET_16,
m_HUFF_OFFSET_24, m_HUFF_OFFSET_24, m_HUFF_OFFSET_24, m_HUFF_OFFSET_24,
m_HUFF_OFFSET_24, m_HUFF_OFFSET_24, m_HUFF_OFFSET_24, m_HUFF_OFFSET_24,};
const HuffTabLookup_t huffTabLookup[m_HUFF_PAIRTABS] PROGMEM = {
{ 0, noBits },
{ 0, oneShot },
{ 0, oneShot },
{ 0, oneShot },
{ 0, invalidTab },
{ 0, oneShot },
{ 0, oneShot },
{ 0, loopNoLinbits },
{ 0, loopNoLinbits },
{ 0, loopNoLinbits },
{ 0, loopNoLinbits },
{ 0, loopNoLinbits },
{ 0, loopNoLinbits },
{ 0, loopNoLinbits },
{ 0, invalidTab },
{ 0, loopNoLinbits },
{ 1, loopLinbits },
{ 2, loopLinbits },
{ 3, loopLinbits },
{ 4, loopLinbits },
{ 6, loopLinbits },
{ 8, loopLinbits },
{ 10, loopLinbits },
{ 13, loopLinbits },
{ 4, loopLinbits },
{ 5, loopLinbits },
{ 6, loopLinbits },
{ 7, loopLinbits },
{ 8, loopLinbits },
{ 9, loopLinbits },
{ 11, loopLinbits },
{ 13, loopLinbits },
};
const int quadTabOffset[2] PROGMEM = {0, 64};
const int quadTabMaxBits[2] PROGMEM = {6, 4};
/* indexing = [version][samplerate index]
* sample rate of frame (Hz)
*/
const int samplerateTab[3][3] PROGMEM = {
{ 44100, 48000, 32000 }, /* MPEG-1 */
{ 22050, 24000, 16000 }, /* MPEG-2 */
{ 11025, 12000, 8000 }, /* MPEG-2.5 */
};
/* indexing = [version][layer]
* number of samples in one frame (per channel)
*/
const int/*short*/samplesPerFrameTab[3][3] PROGMEM = { { 384, 1152, 1152 }, /* MPEG1 */
{ 384, 1152, 576 }, /* MPEG2 */
{ 384, 1152, 576 }, /* MPEG2.5 */
};
/* layers 1, 2, 3 */
const short bitsPerSlotTab[3] = { 32, 8, 8 };
/* indexing = [version][mono/stereo]
* number of bytes in side info section of bitstream
*/
const int/*short*/sideBytesTab[3][2] PROGMEM = { { 17, 32 }, /* MPEG-1: mono, stereo */
{ 9, 17 }, /* MPEG-2: mono, stereo */
{ 9, 17 }, /* MPEG-2.5: mono, stereo */
};
/* indexing = [version][sampleRate][long (.l) or short (.s) block]
* sfBandTable[v][s].l[cb] = index of first bin in critical band cb (long blocks)
* sfBandTable[v][s].s[cb] = index of first bin in critical band cb (short blocks)
*/
const SFBandTable_t sfBandTable[3][3] PROGMEM = {
{ /* MPEG-1 (44, 48, 32 kHz) */
{ {0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 52, 62, 74, 90, 110, 134, 162, 196, 238, 288, 342, 418, 576 },
{0, 4, 8, 12, 16, 22, 30, 40, 52, 66, 84, 106, 136, 192} },
{ {0, 4, 8, 12, 16, 20, 24, 30, 36, 42, 50, 60, 72, 88, 106, 128, 156, 190, 230, 276, 330, 384, 576 },
{0, 4, 8, 12, 16, 22, 28, 38, 50, 64, 80, 100, 126, 192} },
{ {0, 4, 8, 12, 16, 20, 24, 30, 36, 44, 54, 66, 82, 102, 126, 156, 194, 240, 296, 364, 448, 550, 576 },
{0, 4, 8, 12, 16, 22, 30, 42, 58, 78, 104, 138, 180, 192} } },
{ /* MPEG-2 (22, 24, 16 kHz) */
{ {0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 },
{0, 4, 8, 12, 18, 24, 32, 42, 56, 74, 100, 132, 174, 192} },
{ {0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 114, 136, 162, 194, 232, 278, 332, 394, 464, 540, 576 },
{0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 136, 180, 192} },
{ {0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 },
{0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192} }, },
{ /* MPEG-2.5 (11, 12, 8 kHz) */
{ {0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 },
{0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 } },
{ {0, 6, 12, 18, 24, 30, 36, 44, 54, 66, 80, 96, 116, 140, 168, 200, 238, 284, 336, 396, 464, 522, 576 },
{0, 4, 8, 12, 18, 26, 36, 48, 62, 80, 104, 134, 174, 192 } },
{ {0, 12, 24, 36, 48, 60, 72, 88, 108, 132, 160, 192, 232, 280, 336, 400, 476, 566, 568, 570, 572, 574, 576 },
{0, 8, 16, 24, 36, 52, 72, 96, 124, 160, 162, 164, 166, 192 } }, },
};
/* indexing = [intensity scale on/off][left/right]
* format = Q30, range = [0.0, 1.414]
*
* illegal intensity position scalefactors (see comments on ISFMpeg1)
*/
const int ISFIIP[2][2] PROGMEM = {
{0x40000000, 0x00000000}, /* mid-side off */
{0x40000000, 0x40000000}, /* mid-side on */
};
const unsigned char uniqueIDTab[8] = {0x5f, 0x4b, 0x43, 0x5f, 0x5f, 0x4a, 0x52, 0x5f};
/* anti-alias coefficients - see spec Annex B, table 3-B.9
* csa[0][i] = CSi, csa[1][i] = CAi
* format = Q31
*/
const uint32_t csa[8][2] PROGMEM = {
{0x6dc253f0, 0xbe2500aa},
{0x70dcebe4, 0xc39e4949},
{0x798d6e73, 0xd7e33f4a},
{0x7ddd40a7, 0xe8b71176},
{0x7f6d20b7, 0xf3e4fe2f},
{0x7fe47e40, 0xfac1a3c7},
{0x7ffcb263, 0xfe2ebdc6},
{0x7fffc694, 0xff86c25d},
};
/* format = Q30, right shifted by 12 (sign bits only in top 12 - undo this when rounding to short)
* this is to enable early-terminating multiplies on ARM
* range = [-1.144287109, 1.144989014]
* max gain of filter (per output sample) ~= 2.731
*
* new (properly sign-flipped) values
* - these actually are correct to 32 bits, (floating-pt coefficients in spec
* chosen such that only ~20 bits are required)
*
* Reordering - see table 3-B.3 in spec (appendix B)
*
* polyCoef[i] =
* D[ 0, 32, 64, ... 480], i = [ 0, 15]
* D[ 1, 33, 65, ... 481], i = [ 16, 31]
* D[ 2, 34, 66, ... 482], i = [ 32, 47]
* ...
* D[15, 47, 79, ... 495], i = [240,255]
*
* also exploits symmetry: D[i] = -D[512 - i], for i = [1, 255]
*
* polyCoef[256, 257, ... 263] are for special case of sample 16 (out of 0)
* see PolyphaseStereo() and PolyphaseMono()
*/
public:
// prototypes
void EraseBuffers(void);
int MP3Decode( unsigned char *inbuf, int *bytesLeft, short *outbuf, int useSize);
void MP3GetLastFrameInfo();
int MP3GetNextFrameInfo(unsigned char *buf);
int MP3FindSyncWord(unsigned char *buf, int nBytes);
int MP3GetSampRate();
int MP3GetChannels();
int MP3GetBitsPerSample();
int MP3GetBitrate();
int MP3GetOutputSamps();
private:
//internally used
void PolyphaseMono(short *pcm, int *vbuf, const uint32_t *coefBase);
void PolyphaseStereo(short *pcm, int *vbuf, const uint32_t *coefBase);
void SetBitstreamPointer(BitStreamInfo_t *bsi, int nBytes, unsigned char *buf);
unsigned int GetBits(BitStreamInfo_t *bsi, int nBits);
int CalcBitsUsed(BitStreamInfo_t *bsi, unsigned char *startBuf, int startOffset);
int DequantChannel(int *sampleBuf, int *workBuf, int *nonZeroBound, SideInfoSub_t *sis, ScaleFactorInfoSub_t *sfis, CriticalBandInfo_t *cbi);
void MidSideProc(int x[m_MAX_NCHAN][m_MAX_NSAMP], int nSamps, int mOut[2]);
void IntensityProcMPEG1(int x[m_MAX_NCHAN][m_MAX_NSAMP], int nSamps, ScaleFactorInfoSub_t *sfis, CriticalBandInfo_t *cbi, int midSideFlag, int mixFlag, int mOut[2]);
void IntensityProcMPEG2(int x[m_MAX_NCHAN][m_MAX_NSAMP], int nSamps, ScaleFactorInfoSub_t *sfis, CriticalBandInfo_t *cbi, ScaleFactorJS_t *sfjs, int midSideFlag, int mixFlag, int mOut[2]);
void FDCT32(int *x, int *d, int offset, int oddBlock, int gb);// __attribute__ ((section (".data")));
void FreeBuffers();
int CheckPadBit();
int UnpackFrameHeader(unsigned char *buf);
int UnpackSideInfo(unsigned char *buf);
int DecodeHuffman( unsigned char *buf, int *bitOffset, int huffBlockBits, int gr, int ch);
int Dequantize( int gr);
int IMDCT( int gr, int ch);
int UnpackScaleFactors( unsigned char *buf, int *bitOffset, int bitsAvail, int gr, int ch);
int Subband(short *pcmBuf);
short ClipToShort(int x, int fracBits);
void RefillBitstreamCache(BitStreamInfo_t *bsi);
void UnpackSFMPEG1(BitStreamInfo_t *bsi, SideInfoSub_t *sis, ScaleFactorInfoSub_t *sfis, int *scfsi, int gr, ScaleFactorInfoSub_t *sfisGr0);
void UnpackSFMPEG2(BitStreamInfo_t *bsi, SideInfoSub_t *sis, ScaleFactorInfoSub_t *sfis, int gr, int ch, int modeExt, ScaleFactorJS_t *sfjs);
int MP3FindFreeSync(unsigned char *buf, unsigned char firstFH[4], int nBytes);
void MP3ClearBadFrame( short *outbuf);
int DecodeHuffmanPairs(int *xy, int nVals, int tabIdx, int bitsLeft, unsigned char *buf, int bitOffset);
int DecodeHuffmanQuads(int *vwxy, int nVals, int tabIdx, int bitsLeft, unsigned char *buf, int bitOffset);
int DequantBlock(int *inbuf, int *outbuf, int num, int scale);
void AntiAlias(int *x, int nBfly);
void WinPrevious(int *xPrev, int *xPrevWin, int btPrev);
int FreqInvertRescale(int *y, int *xPrev, int blockIdx, int es);
void idct9(int *x);
int IMDCT36(int *xCurr, int *xPrev, int *y, int btCurr, int btPrev, int blockIdx, int gb);
void imdct12(int *x, int *out);
int IMDCT12x3(int *xCurr, int *xPrev, int *y, int btPrev, int blockIdx, int gb);
int HybridTransform(int *xCurr, int *xPrev, int y[m_BLOCK_SIZE][m_NBANDS], SideInfoSub_t *sis, BlockCount_t *bc);
inline uint64_t SAR64(uint64_t x, int n) {return x >> n;}
inline int MULSHIFT32(int x, int y) { int z; z = (uint64_t) x * (uint64_t) y >> 32; return z;}
inline uint64_t MADD64(uint64_t sum64, int x, int y) {sum64 += (uint64_t) x * (uint64_t) y; return sum64;}/* returns 64-bit value in [edx:eax] */
inline int CLZ(int x){int numZeros; if (!x) return(sizeof(int) * 8); numZeros = 0; while (!(x & 0x80000000)){numZeros++; x <<= 1;} return numZeros;}
inline uint64_t xSAR64(uint64_t x, int n){return x >> n;}
inline int FASTABS(int x){ int sign; sign=x>>(sizeof(int)*8-1); x^=sign; x-=sign; return x;}
};
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment