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CriTools/hca.js
kohos ddc10cf4a4 first commit
2019-11-14 11:40:43 +08:00

927 lines
46 KiB
JavaScript
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const fs = require('fs');
const util = require('util');
const path = require('path');
const readFile = util.promisify(fs.readFile);
const writeFile = util.promisify(fs.writeFile);
const appendFile = util.promisify(fs.appendFile);
// DECRYPT START
function initAthTable(table, type, key) {
if (type === 0) {
for (let i = 0; i < 0x80; i++) {
table[i] = 0;
}
return true;
} else if (type === 1) {
const list = [
0x78, 0x5F, 0x56, 0x51, 0x4E, 0x4C, 0x4B, 0x49, 0x48, 0x48, 0x47, 0x46, 0x46, 0x45, 0x45, 0x45,
0x44, 0x44, 0x44, 0x44, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
0x42, 0x42, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x40, 0x40, 0x40, 0x40,
0x40, 0x40, 0x40, 0x40, 0x40, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
0x3F, 0x3F, 0x3F, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D,
0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B,
0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B,
0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3B, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C,
0x3D, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3E, 0x3F,
0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
0x3F, 0x3F, 0x3F, 0x3F, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41,
0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41,
0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x43, 0x43, 0x43,
0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x43, 0x44, 0x44,
0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x45, 0x45, 0x45, 0x45,
0x45, 0x45, 0x45, 0x45, 0x45, 0x45, 0x45, 0x45, 0x46, 0x46, 0x46, 0x46, 0x46, 0x46, 0x46, 0x46,
0x46, 0x46, 0x47, 0x47, 0x47, 0x47, 0x47, 0x47, 0x47, 0x47, 0x47, 0x47, 0x48, 0x48, 0x48, 0x48,
0x48, 0x48, 0x48, 0x48, 0x49, 0x49, 0x49, 0x49, 0x49, 0x49, 0x49, 0x49, 0x4A, 0x4A, 0x4A, 0x4A,
0x4A, 0x4A, 0x4A, 0x4A, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4C, 0x4C, 0x4C, 0x4C, 0x4C,
0x4C, 0x4D, 0x4D, 0x4D, 0x4D, 0x4D, 0x4D, 0x4E, 0x4E, 0x4E, 0x4E, 0x4E, 0x4E, 0x4F, 0x4F, 0x4F,
0x4F, 0x4F, 0x4F, 0x50, 0x50, 0x50, 0x50, 0x50, 0x51, 0x51, 0x51, 0x51, 0x51, 0x52, 0x52, 0x52,
0x52, 0x52, 0x53, 0x53, 0x53, 0x53, 0x54, 0x54, 0x54, 0x54, 0x54, 0x55, 0x55, 0x55, 0x55, 0x56,
0x56, 0x56, 0x56, 0x57, 0x57, 0x57, 0x57, 0x57, 0x58, 0x58, 0x58, 0x59, 0x59, 0x59, 0x59, 0x5A,
0x5A, 0x5A, 0x5A, 0x5B, 0x5B, 0x5B, 0x5B, 0x5C, 0x5C, 0x5C, 0x5D, 0x5D, 0x5D, 0x5D, 0x5E, 0x5E,
0x5E, 0x5F, 0x5F, 0x5F, 0x60, 0x60, 0x60, 0x61, 0x61, 0x61, 0x61, 0x62, 0x62, 0x62, 0x63, 0x63,
0x63, 0x64, 0x64, 0x64, 0x65, 0x65, 0x66, 0x66, 0x66, 0x67, 0x67, 0x67, 0x68, 0x68, 0x68, 0x69,
0x69, 0x6A, 0x6A, 0x6A, 0x6B, 0x6B, 0x6B, 0x6C, 0x6C, 0x6D, 0x6D, 0x6D, 0x6E, 0x6E, 0x6F, 0x6F,
0x70, 0x70, 0x70, 0x71, 0x71, 0x72, 0x72, 0x73, 0x73, 0x73, 0x74, 0x74, 0x75, 0x75, 0x76, 0x76,
0x77, 0x77, 0x78, 0x78, 0x78, 0x79, 0x79, 0x7A, 0x7A, 0x7B, 0x7B, 0x7C, 0x7C, 0x7D, 0x7D, 0x7E,
0x7E, 0x7F, 0x7F, 0x80, 0x80, 0x81, 0x81, 0x82, 0x83, 0x83, 0x84, 0x84, 0x85, 0x85, 0x86, 0x86,
0x87, 0x88, 0x88, 0x89, 0x89, 0x8A, 0x8A, 0x8B, 0x8C, 0x8C, 0x8D, 0x8D, 0x8E, 0x8F, 0x8F, 0x90,
0x90, 0x91, 0x92, 0x92, 0x93, 0x94, 0x94, 0x95, 0x95, 0x96, 0x97, 0x97, 0x98, 0x99, 0x99, 0x9A,
0x9B, 0x9B, 0x9C, 0x9D, 0x9D, 0x9E, 0x9F, 0xA0, 0xA0, 0xA1, 0xA2, 0xA2, 0xA3, 0xA4, 0xA5, 0xA5,
0xA6, 0xA7, 0xA7, 0xA8, 0xA9, 0xAA, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAE, 0xAF, 0xB0, 0xB1, 0xB1,
0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xC0, 0xC1, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD,
0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD,
0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xED, 0xEE,
0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFF, 0xFF
];
let v = 0;
for (let i = 0; i < 0x80; i++) {
const index = v >>> 13;
if (index >= 0x28E) {
const last = 0x80 - i;
for (let j = 0; j < last; j++) {
table[i + j] = 0xFF;
}
break;
}
table[i] = list[index];
v += key;
}
return true;
}
return false;
}
function createTable56(r, key) {
const mul = ((key & 1) << 3) | 5;
const add = (key & 0xE) | 1;
key >>>= 4;
for (let i = 0; i < 0x10; i++) {
key = (key * mul + add) & 0xF;
r[i] = key;
}
}
function initCiphTable(table, type, key1, key2) {
if (type === 0) {
for (let i = 0; i < 0x100; i++) table[i] = i;
return true;
} else if (type === 1) {
let v = 0;
for (let i = 1; i < 0xFF; i++) {
v = (v * 13 + 11) & 0xFF;
if (v === 0 || v === 0xFF) v = (v * 13 + 11) & 0xFF;
table[i] = v;
}
table[0] = 0;
table[0xFF] = 0xFF;
return true;
} else if (type === 56) {
const t1 = Buffer.alloc(8);
if (!key1) key2--;
key1--;
for (let i = 0; i < 7; i++) {
t1[i] = key1 & 0xFF;
key1 = (key1 >>> 8) | ((key2 << 24) & 0xFFFFFFFF);
key2 >>>= 8;
}
const t2 = Buffer.from([
t1[1], t1[1] ^ t1[6],
t1[2] ^ t1[3], t1[2],
t1[2] ^ t1[1], t1[3] ^ t1[4],
t1[3], t1[3] ^ t1[2],
t1[4] ^ t1[5], t1[4],
t1[4] ^ t1[3], t1[5] ^ t1[6],
t1[5], t1[5] ^ t1[4],
t1[6] ^ t1[1], t1[6]
]);
const t3 = Buffer.alloc(0x100);
const t31 = Buffer.alloc(0x10);
const t32 = Buffer.alloc(0x10);
createTable56(t31, t1[0]);
let k = 0;
for (let i = 0; i < 0x10; i++) {
createTable56(t32, t2[i]);
const v = (t31[i] << 4) & 0xFF;
for (let j = 0; j < 0x10; j++) {
t3[k++] = v | t32[j];
}
}
let j = 1;
for (let i = 0, v = 0; i < 0x100; i++) {
v = (v + 0x11) & 0xFF;
const a = t3[v];
if (a != 0 && a != 0xFF) table[j++] = a;
}
table[0] = 0;
table[0xFF] = 0xFF;
return true;
}
return false;
}
function decryptBlock(table, block) {
for (let i = 0; i < block.length; i++) {
block[i] = table[block[i]];
}
}
function checkSum(data, size) {
let sum = 0;
const v = [
0x0000, 0x8005, 0x800F, 0x000A, 0x801B, 0x001E, 0x0014, 0x8011, 0x8033, 0x0036, 0x003C, 0x8039, 0x0028, 0x802D, 0x8027, 0x0022,
0x8063, 0x0066, 0x006C, 0x8069, 0x0078, 0x807D, 0x8077, 0x0072, 0x0050, 0x8055, 0x805F, 0x005A, 0x804B, 0x004E, 0x0044, 0x8041,
0x80C3, 0x00C6, 0x00CC, 0x80C9, 0x00D8, 0x80DD, 0x80D7, 0x00D2, 0x00F0, 0x80F5, 0x80FF, 0x00FA, 0x80EB, 0x00EE, 0x00E4, 0x80E1,
0x00A0, 0x80A5, 0x80AF, 0x00AA, 0x80BB, 0x00BE, 0x00B4, 0x80B1, 0x8093, 0x0096, 0x009C, 0x8099, 0x0088, 0x808D, 0x8087, 0x0082,
0x8183, 0x0186, 0x018C, 0x8189, 0x0198, 0x819D, 0x8197, 0x0192, 0x01B0, 0x81B5, 0x81BF, 0x01BA, 0x81AB, 0x01AE, 0x01A4, 0x81A1,
0x01E0, 0x81E5, 0x81EF, 0x01EA, 0x81FB, 0x01FE, 0x01F4, 0x81F1, 0x81D3, 0x01D6, 0x01DC, 0x81D9, 0x01C8, 0x81CD, 0x81C7, 0x01C2,
0x0140, 0x8145, 0x814F, 0x014A, 0x815B, 0x015E, 0x0154, 0x8151, 0x8173, 0x0176, 0x017C, 0x8179, 0x0168, 0x816D, 0x8167, 0x0162,
0x8123, 0x0126, 0x012C, 0x8129, 0x0138, 0x813D, 0x8137, 0x0132, 0x0110, 0x8115, 0x811F, 0x011A, 0x810B, 0x010E, 0x0104, 0x8101,
0x8303, 0x0306, 0x030C, 0x8309, 0x0318, 0x831D, 0x8317, 0x0312, 0x0330, 0x8335, 0x833F, 0x033A, 0x832B, 0x032E, 0x0324, 0x8321,
0x0360, 0x8365, 0x836F, 0x036A, 0x837B, 0x037E, 0x0374, 0x8371, 0x8353, 0x0356, 0x035C, 0x8359, 0x0348, 0x834D, 0x8347, 0x0342,
0x03C0, 0x83C5, 0x83CF, 0x03CA, 0x83DB, 0x03DE, 0x03D4, 0x83D1, 0x83F3, 0x03F6, 0x03FC, 0x83F9, 0x03E8, 0x83ED, 0x83E7, 0x03E2,
0x83A3, 0x03A6, 0x03AC, 0x83A9, 0x03B8, 0x83BD, 0x83B7, 0x03B2, 0x0390, 0x8395, 0x839F, 0x039A, 0x838B, 0x038E, 0x0384, 0x8381,
0x0280, 0x8285, 0x828F, 0x028A, 0x829B, 0x029E, 0x0294, 0x8291, 0x82B3, 0x02B6, 0x02BC, 0x82B9, 0x02A8, 0x82AD, 0x82A7, 0x02A2,
0x82E3, 0x02E6, 0x02EC, 0x82E9, 0x02F8, 0x82FD, 0x82F7, 0x02F2, 0x02D0, 0x82D5, 0x82DF, 0x02DA, 0x82CB, 0x02CE, 0x02C4, 0x82C1,
0x8243, 0x0246, 0x024C, 0x8249, 0x0258, 0x825D, 0x8257, 0x0252, 0x0270, 0x8275, 0x827F, 0x027A, 0x826B, 0x026E, 0x0264, 0x8261,
0x0220, 0x8225, 0x822F, 0x022A, 0x823B, 0x023E, 0x0234, 0x8231, 0x8213, 0x0216, 0x021C, 0x8219, 0x0208, 0x820D, 0x8207, 0x0202,
];
for (let i = 0; i < size; i++) {
sum = ((sum << 8) & 0xFFFF) ^ v[(sum >>> 8) ^ data[i]];
}
return sum;
}
function parseHCA(buffer, key, awbKey) {
if (awbKey === undefined) awbKey = 0;
if (!buffer || buffer.length < 4) return null;
let pos = 0;
const hca = {};
// HCA
hca.magic = buffer.readUInt32LE(pos); pos += 4;
if ((hca.magic & 0x7F7F7F7F) !== 0x00414348) return null;
hca.version = buffer.readUInt16BE(pos); pos += 2;
hca.dataOffset = buffer.readUInt16BE(pos); pos += 2;
// fmt
hca.fmt = buffer.readUInt32LE(pos); pos += 4;
if ((hca.fmt & 0x7F7F7F7F) !== 0x00746D66) return null;
hca.channelCount = buffer.readUInt8(pos);
hca.samplingRate = 0xFFFFFF & buffer.readUInt32BE(pos); pos += 4;
hca.blockCount = buffer.readUInt32BE(pos); pos += 4;
hca.muteHeader = buffer.readUInt16BE(pos); pos += 2;
hca.muteFooter = buffer.readUInt16BE(pos); pos += 2;
if (!(hca.channelCount >= 1 && hca.channelCount <= 16)) return null;
if (!(hca.samplingRate >= 1 && hca.samplingRate <= 0x7FFFFF)) return null;
let label = buffer.readUInt32LE(pos); pos += 4;
hca.compdec = label;
hca.blockSize = buffer.readUInt16BE(pos); pos += 2;
hca.r01 = buffer.readUInt8(pos); pos += 1;
hca.r02 = buffer.readUInt8(pos); pos += 1;
if ((label & 0x7F7F7F7F) === 0x706D6F63) { // comp
hca.r03 = buffer.readUInt8(pos); pos += 1;
hca.r04 = buffer.readUInt8(pos); pos += 1;
hca.r05 = buffer.readUInt8(pos); pos += 1;
hca.r06 = buffer.readUInt8(pos); pos += 1;
hca.r07 = buffer.readUInt8(pos); pos += 1;
hca.r08 = buffer.readUInt8(pos); pos += 1;
hca.reserve1 = buffer.readUInt8(pos); pos += 1;
hca.reserve2 = buffer.readUInt8(pos); pos += 1;
} else if ((label & 0x7F7F7F7F) === 0x00636564) { // dec
hca.count1 = buffer.readUInt8(pos); pos += 1;
hca.count2 = buffer.readUInt8(pos); pos += 1;
hca.r03 = (buffer.readUInt8(pos) >>> 4) & 0xF;
hca.r04 = buffer.readUInt8(pos) & 0xF; pos += 1;
hca.enableCount2 = buffer.readUInt8(pos); pos += 1;
} else return null;
if (!((hca.blockSize >= 1 && hca.blockSize <= 0xFFFF) || (hca.blockSize === 0))) return null;
if (!(hca.r01 >= 0 && hca.r01 <= hca.r02 && hca.r02 <= 0x1F)) return null;
label = buffer.readUInt32LE(pos); pos += 4;
if ((label & 0x7F7F7F7F) === 0x00726276) { // vbr
hca.vbr = label;
hca.vbrPos = pos - 4;
hca.vbrR1 = buffer.readUInt16BE(pos); pos += 2;
hca.vbrR2 = buffer.readUInt16BE(pos); pos += 2;
if (!(hca.blockSize === 0 && hca.vbrR1 >= 0 && hca.vbrR2 <= 0x1FF)) return null;
label = buffer.readUInt32LE(pos); pos += 4;
}
if ((label & 0x7F7F7F7F) === 0x00687461) { // ath
hca.ath = label;
hca.athPos = pos - 4;
hca.athType = buffer.readUInt16BE(pos); pos += 2;
label = buffer.readUInt32LE(pos); pos += 4;
} else {
hca.athType = hca.version < 0x200 ? 1 : 0;
}
if ((label & 0x7F7F7F7F) === 0x706F6F6C) { // loop
hca.loop = label;
hca.loopPos = pos - 4;
hca.loopStart = buffer.readUInt32BE(pos); pos += 4;
hca.loopEnd = buffer.readUInt32BE(pos); pos += 4;
hca.loopCount = buffer.readUInt16BE(pos); pos += 2;
if (!(hca.loopStart >= 0 && hca.loopStart <= hca.loopEnd && hca.loopEnd <= hca.blockCount)) return null;
hca.loopR1 = buffer.readUInt16BE(pos); pos += 2;
label = buffer.readUInt32LE(pos); pos += 4;
}
if ((label & 0x7F7F7F7F) === 0x68706963) { // ciph
hca.ciph = label;
hca.ciphPos = pos - 4;
hca.ciphType = buffer.readUInt16BE(pos); pos += 2;
if (!(hca.ciphType === 0 || hca.ciphType === 1 || hca.ciphType === 56)) return null;
label = buffer.readUInt32LE(pos); pos += 4;
}
if ((label & 0x7F7F7F7F) === 0x00617672) { // rva
hca.rva = label;
hca.rvaPos = pos - 4;
hca.volume = buffer.readFloatBE(pos); pos += 4;
label = buffer.readUInt32LE(pos); pos += 4;
} else {
hca.volume = 1;
}
if ((label & 0x7F7F7F7F) === 0x6D6D6F63) { // comm
hca.comm = label;
hca.commPos = pos - 4;
hca.commLen = buffer.readUInt8(pos); pos += 1;
if (hca.commLen) {
hca.comment = buffer.slice(pos, pos + hca.commLen).toString(); pos += hca.commLen;
}
label = buffer.readUInt32LE(pos); pos += 4;
}
if ((label & 0x7F7F7F7F) === 0x00646170) { // pad
hca.pad = label;
hca.padPos = pos - 4;
label = buffer.readUInt32LE(pos); pos += 4;
}
hca.athTable = Buffer.alloc(0x80);
if (!initAthTable(hca.athTable, hca.athType, hca.samplingRate)) return null;
let key1 = 0, key2 = 0;
if (key) {
key = BigInt(key);
if (awbKey) {
key = (BigInt(key) * ((BigInt(awbKey) << 16n) | BigInt(((~awbKey & 0xFFFF) + 2) & 0xFFFF))) & 0xFFFFFFFFFFFFFFFFn;
}
key1 = Number(key & 0xFFFFFFFFn);
key2 = Number((key >> 32n) & 0xFFFFFFFFn);
}
hca.ciphTable = Buffer.alloc(0x100);
if (!initCiphTable(hca.ciphTable, hca.ciphType, key1, key2)) return null;
return hca;
}
async function decryptHca(buffer, key, awbKey, type, hcaPath) {
if (typeof (buffer) === 'string') {
console.log(`Decrypting ${path.parse(buffer).base}...`);
buffer = await readFile(buffer);
}
if (typeof (type) === 'string') {
hcaPath = type;
type = 1;
} else if (type === undefined) type = 1;
const hca = parseHCA(buffer, key, awbKey);
if (!hca) throw new Error(`Not a valid HCA file`);
buffer.writeUInt32LE(hca.magic & 0x7F7F7F7F, 0x0);
buffer.writeUInt32LE(hca.fmt & 0x7F7F7F7F, 0x8);
buffer.writeUInt32LE(hca.compdec & 0x7F7F7F7F, 0x18);
if (hca.vbr) buffer.writeUInt32LE(hca.vbr & 0x7F7F7F7F, hca.vbrPos);
if (hca.ath) buffer.writeUInt32LE(hca.ath & 0x7F7F7F7F, hca.athPos);
if (hca.loop) buffer.writeUInt32LE(hca.loop & 0x7F7F7F7F, hca.loopPos);
if (hca.ciph) buffer.writeUInt32LE(hca.ciph & 0x7F7F7F7F, hca.ciphPos);
if (hca.rva) buffer.writeUInt32LE(hca.rva & 0x7F7F7F7F, hca.rvaPos);
if (hca.comm) buffer.writeUInt32LE(hca.comm & 0x7F7F7F7F, hca.commPos);
if (hca.pad) buffer.writeUInt32LE(hca.pad & 0x7F7F7F7F, hca.padPos);
buffer.writeUInt16BE(type, hca.ciphPos + 4);
buffer.writeUInt16BE(checkSum(buffer, hca.dataOffset - 2), hca.dataOffset - 2);
if (hca.ciphType !== type) {
const ciphTable = Buffer.alloc(0x100);
const revTable = Buffer.alloc(0x100);
initCiphTable(ciphTable, 1);
for (let i = 0; i < revTable.length; i++) revTable[ciphTable[i]] = i;
let offset = hca.dataOffset;
for (let i = 0; i < hca.blockCount; i++) {
if (offset >= buffer.length) break;
const block = buffer.slice(offset, offset + hca.blockSize);
decryptBlock(hca.ciphTable, block);
if (type === 1) decryptBlock(revTable, block);
block.writeUInt16BE(checkSum(block, block.length - 2), block.length - 2);
offset += hca.blockSize;
}
}
if (hcaPath !== undefined) await writeFile(hcaPath, buffer);
}
exports.decrypt = decryptHca;
// DECODE START
function ceil2(a, b) {
return (b > 0) ? (Math.floor(a / b) + ((a % b) ? 1 : 0)) : 0;
}
function initDecode(hca) {
const isComp = (hca.compdec & 0x7F7F7F7F) === 0x706D6F63;
hca.comp = {};
hca.comp.r01 = hca.r01;
hca.comp.r02 = hca.r02;
hca.comp.r03 = hca.r03;
hca.comp.r04 = hca.r04;
hca.comp.r05 = isComp ? hca.r05 : hca.count1 + 1;
hca.comp.r06 = isComp ? hca.r06 : hca.enableCount2 ? hca.count2 + 1 : hca.count1 + 1;
hca.comp.r07 = isComp ? hca.r07 : r05 - r06;
hca.comp.r08 = isComp ? hca.r08 : 0;
if (!hca.comp.r03) hca.comp.r03 = 1;
if (!(hca.comp.r01 === 1 && hca.comp.r02 === 15)) {
return false;
}
hca.comp.r09 = ceil2(hca.comp.r05 - (hca.comp.r06 + hca.comp.r07), hca.comp.r08);
const r = Buffer.alloc(0x10);
const b = Math.floor(hca.channelCount / hca.comp.r03);
if (hca.comp.r07 && b > 1) {
let c = 0;
for (let i = 0; i < hca.comp.r03; i++) {
switch (b) {
case 2: r[c] = 1; r[c + 1] = 2; break;
case 3: r[c] = 1; r[c + 1] = 2; break;
case 4: r[c] = 1; r[c + 1] = 2; if (hca.comp.r04 == 0) { r[c + 2] = 1; r[c + 3] = 2; } break;
case 5: r[c] = 1; r[c + 1] = 2; if (hca.comp.r04 <= 2) { r[c + 3] = 1; r[c + 4] = 2; } break;
case 6: r[c] = 1; r[c + 1] = 2; r[c + 4] = 1; r[c + 5] = 2; break;
case 7: r[c] = 1; r[c + 1] = 2; r[c + 4] = 1; r[c + 5] = 2; break;
case 8: r[c] = 1; r[c + 1] = 2; r[c + 4] = 1; r[c + 5] = 2; r[c + 6] = 1; r[c + 7] = 2; break;
}
c += b;
}
}
hca.channels = [];
for (let i = 0; i < hca.channelCount; i++) {
const channel = {};
channel.block = new Float32Array(0x80);
channel.base = new Float32Array(0x80);
channel.value = Buffer.alloc(0x80);
channel.scale = Buffer.alloc(0x80);
channel.value2 = Buffer.alloc(8);
channel.type = r[i];
channel.value3 = channel.value.slice(hca.comp.r06 + hca.comp.r07);
channel.count = hca.comp.r06 + ((r[i] != 2) ? hca.comp.r07 : 0);
channel.wav1 = new Float32Array(0x80);
channel.wav2 = new Float32Array(0x80);
channel.wav3 = new Float32Array(0x80);
channel.wave = [
new Float32Array(0x80), new Float32Array(0x80),
new Float32Array(0x80), new Float32Array(0x80),
new Float32Array(0x80), new Float32Array(0x80),
new Float32Array(0x80), new Float32Array(0x80)
];
hca.channels.push(channel);
}
return true;
}
class BlockReader {
constructor(buffer) {
this.data = buffer;
this.size = buffer.length * 8 - 16;
this.bit = 0;
this.mask = [0xFFFFFF, 0x7FFFFF, 0x3FFFFF, 0x1FFFFF, 0x0FFFFF, 0x07FFFF, 0x03FFFF, 0x01FFFF];
}
checkBit(bitSize) {
let v = 0;
if (this.bit + bitSize <= this.size) {
const pos = this.bit >>> 3;
v = this.data[pos];
v = (v << 8) | this.data[pos + 1];
v = (v << 8) | this.data[pos + 2];
v &= this.mask[this.bit & 7];
v >>>= 24 - (this.bit & 7) - bitSize;
}
return v;
}
getBit(bitSize) {
const v = this.checkBit(bitSize);
this.bit += bitSize;
return v;
}
addBit(bitSize) {
this.bit += bitSize;
}
}
function arrayIntToFloat(arrayInt) {
let arrayFloat = [];
const buffer = Buffer.alloc(4);
for (let i = 0; i < arrayInt.length; i++) {
buffer.writeUInt32LE(arrayInt[i], 0);
arrayFloat[i] = buffer.readFloatLE(0);
}
return arrayFloat;
}
const DECODE1 = {
scalelist: [
0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0D, 0x0D,
0x0D, 0x0D, 0x0D, 0x0D, 0x0C, 0x0C, 0x0C, 0x0C,
0x0C, 0x0C, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x0B,
0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x09,
0x09, 0x09, 0x09, 0x09, 0x09, 0x08, 0x08, 0x08,
0x08, 0x08, 0x08, 0x07, 0x06, 0x06, 0x05, 0x04,
0x04, 0x04, 0x03, 0x03, 0x03, 0x02, 0x02, 0x02,
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
],
valueFloat: arrayIntToFloat([
0x342A8D26, 0x34633F89, 0x3497657D, 0x34C9B9BE, 0x35066491, 0x353311C4, 0x356E9910, 0x359EF532,
0x35D3CCF1, 0x360D1ADF, 0x363C034A, 0x367A83B3, 0x36A6E595, 0x36DE60F5, 0x371426FF, 0x3745672A,
0x37838359, 0x37AF3B79, 0x37E97C38, 0x381B8D3A, 0x384F4319, 0x388A14D5, 0x38B7FBF0, 0x38F5257D,
0x3923520F, 0x39599D16, 0x3990FA4D, 0x39C12C4D, 0x3A00B1ED, 0x3A2B7A3A, 0x3A647B6D, 0x3A9837F0,
0x3ACAD226, 0x3B071F62, 0x3B340AAF, 0x3B6FE4BA, 0x3B9FD228, 0x3BD4F35B, 0x3C0DDF04, 0x3C3D08A4,
0x3C7BDFED, 0x3CA7CD94, 0x3CDF9613, 0x3D14F4F0, 0x3D467991, 0x3D843A29, 0x3DB02F0E, 0x3DEAC0C7,
0x3E1C6573, 0x3E506334, 0x3E8AD4C6, 0x3EB8FBAF, 0x3EF67A41, 0x3F243516, 0x3F5ACB94, 0x3F91C3D3,
0x3FC238D2, 0x400164D2, 0x402C6897, 0x4065B907, 0x40990B88, 0x40CBEC15, 0x4107DB35, 0x413504F3,
]),
scaleFloat: arrayIntToFloat([
0x00000000, 0x3F2AAAAB, 0x3ECCCCCD, 0x3E924925, 0x3E638E39, 0x3E3A2E8C, 0x3E1D89D9, 0x3E088889,
0x3D842108, 0x3D020821, 0x3C810204, 0x3C008081, 0x3B804020, 0x3B002008, 0x3A801002, 0x3A000801,
])
}
function decode1(channel, reader, a, b, athTable) {
let v = reader.getBit(3);
if (v >= 6) {
for (let i = 0; i < channel.count; i++) channel.value[i] = reader.getBit(6);
} else if (v) {
let v1 = reader.getBit(6), v2 = (1 << v) - 1, v3 = v2 >>> 1, v4;
channel.value[0] = v1;
for (let i = 1; i < channel.count; i++) {
v4 = reader.getBit(v);
if (v4 !== v2) { v1 += v4 - v3; } else { v1 = reader.getBit(6); }
channel.value[i] = v1;
}
} else {
channel.value.fill(0);
}
if (channel.type == 2) {
v = reader.checkBit(4); channel.value2[0] = v;
if (v < 15) for (let i = 0; i < 8; i++) channel.value2[i] = reader.getBit(4);
} else {
for (let i = 0; i < a; i++) {
channel.value3[i] = reader.getBit(6);
}
}
for (let i = 0; i < channel.count; i++) {
v = channel.value[i];
if (v) {
v = athTable[i] + ((b + i) >>> 8) - Math.floor((v * 5) / 2) + 1;
if (v < 0) v = 15; else if (v >= 0x39) v = 1; else v = DECODE1.scalelist[v];
}
channel.scale[i] = v;
}
channel.scale.fill(0, channel.count, 0x80);
for (let i = 0; i < channel.count; i++) channel.base[i] = DECODE1.valueFloat[channel.value[i]] * DECODE1.scaleFloat[channel.scale[i]];
}
const DECODE2 = {
list1: [
0, 2, 3, 3, 4, 4, 4, 4, 5, 6, 7, 8, 9, 10, 11, 12,
],
list2: [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 1, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2, 2, 2, 2, 2, 2, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0,
2, 2, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4,
3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
],
list3: [
+0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0,
+0, +0, +1, -1, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0, +0,
+0, +0, +1, +1, -1, -1, +2, -2, +0, +0, +0, +0, +0, +0, +0, +0,
+0, +0, +1, -1, +2, -2, +3, -3, +0, +0, +0, +0, +0, +0, +0, +0,
+0, +0, +1, +1, -1, -1, +2, +2, -2, -2, +3, +3, -3, -3, +4, -4,
+0, +0, +1, +1, -1, -1, +2, +2, -2, -2, +3, -3, +4, -4, +5, -5,
+0, +0, +1, +1, -1, -1, +2, -2, +3, -3, +4, -4, +5, -5, +6, -6,
+0, +0, +1, -1, +2, -2, +3, -3, +4, -4, +5, -5, +6, -6, +7, -7,
]
};
function decode2(channel, reader) {
for (let i = 0; i < channel.count; i++) {
let f;
const s = channel.scale[i];
const bitSize = DECODE2.list1[s];
let v = reader.getBit(bitSize);
if (s < 8) {
v += s << 4;
reader.addBit(DECODE2.list2[v] - bitSize);
f = DECODE2.list3[v];
} else {
v = (1 - ((v & 1) << 1)) * Math.floor(v / 2);
if (!v) reader.addBit(-1);
f = v;
}
channel.block[i] = channel.base[i] * f;
}
channel.block.fill(0, channel.count, 0x80);
}
const DECODE3 = {
listFloat: arrayIntToFloat([
0x00000000, 0x00000000, 0x32A0B051, 0x32D61B5E, 0x330EA43A, 0x333E0F68, 0x337D3E0C, 0x33A8B6D5,
0x33E0CCDF, 0x3415C3FF, 0x34478D75, 0x3484F1F6, 0x34B123F6, 0x34EC0719, 0x351D3EDA, 0x355184DF,
0x358B95C2, 0x35B9FCD2, 0x35F7D0DF, 0x36251958, 0x365BFBB8, 0x36928E72, 0x36C346CD, 0x370218AF,
0x372D583F, 0x3766F85B, 0x3799E046, 0x37CD078C, 0x3808980F, 0x38360094, 0x38728177, 0x38A18FAF,
0x38D744FD, 0x390F6A81, 0x393F179A, 0x397E9E11, 0x39A9A15B, 0x39E2055B, 0x3A16942D, 0x3A48A2D8,
0x3A85AAC3, 0x3AB21A32, 0x3AED4F30, 0x3B1E196E, 0x3B52A81E, 0x3B8C57CA, 0x3BBAFF5B, 0x3BF9295A,
0x3C25FED7, 0x3C5D2D82, 0x3C935A2B, 0x3CC4563F, 0x3D02CD87, 0x3D2E4934, 0x3D68396A, 0x3D9AB62B,
0x3DCE248C, 0x3E0955EE, 0x3E36FD92, 0x3E73D290, 0x3EA27043, 0x3ED87039, 0x3F1031DC, 0x3F40213B,
0x3F800000, 0x3FAA8D26, 0x3FE33F89, 0x4017657D, 0x4049B9BE, 0x40866491, 0x40B311C4, 0x40EE9910,
0x411EF532, 0x4153CCF1, 0x418D1ADF, 0x41BC034A, 0x41FA83B3, 0x4226E595, 0x425E60F5, 0x429426FF,
0x42C5672A, 0x43038359, 0x432F3B79, 0x43697C38, 0x439B8D3A, 0x43CF4319, 0x440A14D5, 0x4437FBF0,
0x4475257D, 0x44A3520F, 0x44D99D16, 0x4510FA4D, 0x45412C4D, 0x4580B1ED, 0x45AB7A3A, 0x45E47B6D,
0x461837F0, 0x464AD226, 0x46871F62, 0x46B40AAF, 0x46EFE4BA, 0x471FD228, 0x4754F35B, 0x478DDF04,
0x47BD08A4, 0x47FBDFED, 0x4827CD94, 0x485F9613, 0x4894F4F0, 0x48C67991, 0x49043A29, 0x49302F0E,
0x496AC0C7, 0x499C6573, 0x49D06334, 0x4A0AD4C6, 0x4A38FBAF, 0x4A767A41, 0x4AA43516, 0x4ADACB94,
0x4B11C3D3, 0x4B4238D2, 0x4B8164D2, 0x4BAC6897, 0x4BE5B907, 0x4C190B88, 0x4C4BEC15, 0x00000000,
])
};
function decode3(channel, a, b, c, d) {
if (channel.type !== 2 && b > 0) {
for (let i = 0; i < a; i++) {
for (let j = 0, k = c, l = c - 1; j < b && k < d; j++ , l--) {
channel.block[k++] = DECODE3.listFloat[0x40 + channel.value3[i] - channel.value[l]] * channel.block[l];
}
}
channel.block[0x80 - 1] = 0;
}
}
const DECODE4 = {
listFloat: arrayIntToFloat([
0x40000000, 0x3FEDB6DB, 0x3FDB6DB7, 0x3FC92492, 0x3FB6DB6E, 0x3FA49249, 0x3F924925, 0x3F800000,
0x3F5B6DB7, 0x3F36DB6E, 0x3F124925, 0x3EDB6DB7, 0x3E924925, 0x3E124925, 0x00000000, 0x00000000,
])
};
function decode4(channel, nextChannel, index, a, b, c) {
if (channel.type == 1 && c) {
const f1 = DECODE4.listFloat[nextChannel.value2[index]];
const f2 = f1 - 2.0;
for (let i = 0; i < a; i++) {
nextChannel.block[b + i] = channel.block[b + i] * f2;
channel.block[b + i] *= f1;
}
}
}
const DECODE5 = {
list1Float: [
arrayIntToFloat([
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75, 0x3DA73D75,
]),
arrayIntToFloat([
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31, 0x3F7B14BE, 0x3F54DB31,
]),
arrayIntToFloat([
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403, 0x3F7EC46D, 0x3F74FA0B, 0x3F61C598, 0x3F45E403,
]),
arrayIntToFloat([
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
0x3F7FB10F, 0x3F7D3AAC, 0x3F7853F8, 0x3F710908, 0x3F676BD8, 0x3F5B941A, 0x3F4D9F02, 0x3F3DAEF9,
]),
arrayIntToFloat([
0x3F7FEC43, 0x3F7F4E6D, 0x3F7E1324, 0x3F7C3B28, 0x3F79C79D, 0x3F76BA07, 0x3F731447, 0x3F6ED89E,
0x3F6A09A7, 0x3F64AA59, 0x3F5EBE05, 0x3F584853, 0x3F514D3D, 0x3F49D112, 0x3F41D870, 0x3F396842,
0x3F7FEC43, 0x3F7F4E6D, 0x3F7E1324, 0x3F7C3B28, 0x3F79C79D, 0x3F76BA07, 0x3F731447, 0x3F6ED89E,
0x3F6A09A7, 0x3F64AA59, 0x3F5EBE05, 0x3F584853, 0x3F514D3D, 0x3F49D112, 0x3F41D870, 0x3F396842,
0x3F7FEC43, 0x3F7F4E6D, 0x3F7E1324, 0x3F7C3B28, 0x3F79C79D, 0x3F76BA07, 0x3F731447, 0x3F6ED89E,
0x3F6A09A7, 0x3F64AA59, 0x3F5EBE05, 0x3F584853, 0x3F514D3D, 0x3F49D112, 0x3F41D870, 0x3F396842,
0x3F7FEC43, 0x3F7F4E6D, 0x3F7E1324, 0x3F7C3B28, 0x3F79C79D, 0x3F76BA07, 0x3F731447, 0x3F6ED89E,
0x3F6A09A7, 0x3F64AA59, 0x3F5EBE05, 0x3F584853, 0x3F514D3D, 0x3F49D112, 0x3F41D870, 0x3F396842,
]),
arrayIntToFloat([
0x3F7FFB11, 0x3F7FD397, 0x3F7F84AB, 0x3F7F0E58, 0x3F7E70B0, 0x3F7DABCC, 0x3F7CBFC9, 0x3F7BACCD,
0x3F7A7302, 0x3F791298, 0x3F778BC5, 0x3F75DEC6, 0x3F740BDD, 0x3F721352, 0x3F6FF573, 0x3F6DB293,
0x3F6B4B0C, 0x3F68BF3C, 0x3F660F88, 0x3F633C5A, 0x3F604621, 0x3F5D2D53, 0x3F59F26A, 0x3F5695E5,
0x3F531849, 0x3F4F7A1F, 0x3F4BBBF8, 0x3F47DE65, 0x3F43E200, 0x3F3FC767, 0x3F3B8F3B, 0x3F373A23,
0x3F7FFB11, 0x3F7FD397, 0x3F7F84AB, 0x3F7F0E58, 0x3F7E70B0, 0x3F7DABCC, 0x3F7CBFC9, 0x3F7BACCD,
0x3F7A7302, 0x3F791298, 0x3F778BC5, 0x3F75DEC6, 0x3F740BDD, 0x3F721352, 0x3F6FF573, 0x3F6DB293,
0x3F6B4B0C, 0x3F68BF3C, 0x3F660F88, 0x3F633C5A, 0x3F604621, 0x3F5D2D53, 0x3F59F26A, 0x3F5695E5,
0x3F531849, 0x3F4F7A1F, 0x3F4BBBF8, 0x3F47DE65, 0x3F43E200, 0x3F3FC767, 0x3F3B8F3B, 0x3F373A23,
]),
arrayIntToFloat([
0x3F7FFEC4, 0x3F7FF4E6, 0x3F7FE129, 0x3F7FC38F, 0x3F7F9C18, 0x3F7F6AC7, 0x3F7F2F9D, 0x3F7EEA9D,
0x3F7E9BC9, 0x3F7E4323, 0x3F7DE0B1, 0x3F7D7474, 0x3F7CFE73, 0x3F7C7EB0, 0x3F7BF531, 0x3F7B61FC,
0x3F7AC516, 0x3F7A1E84, 0x3F796E4E, 0x3F78B47B, 0x3F77F110, 0x3F772417, 0x3F764D97, 0x3F756D97,
0x3F748422, 0x3F73913F, 0x3F7294F8, 0x3F718F57, 0x3F708066, 0x3F6F6830, 0x3F6E46BE, 0x3F6D1C1D,
0x3F6BE858, 0x3F6AAB7B, 0x3F696591, 0x3F6816A8, 0x3F66BECC, 0x3F655E0B, 0x3F63F473, 0x3F628210,
0x3F6106F2, 0x3F5F8327, 0x3F5DF6BE, 0x3F5C61C7, 0x3F5AC450, 0x3F591E6A, 0x3F577026, 0x3F55B993,
0x3F53FAC3, 0x3F5233C6, 0x3F5064AF, 0x3F4E8D90, 0x3F4CAE79, 0x3F4AC77F, 0x3F48D8B3, 0x3F46E22A,
0x3F44E3F5, 0x3F42DE29, 0x3F40D0DA, 0x3F3EBC1B, 0x3F3CA003, 0x3F3A7CA4, 0x3F385216, 0x3F36206C,
])
],
list2Float: [
arrayIntToFloat([
0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4,
0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4,
0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4,
0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4,
0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4,
0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4,
0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4,
0x3D0A8BD4, 0xBD0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4, 0x3D0A8BD4, 0x3D0A8BD4, 0xBD0A8BD4,
]),
arrayIntToFloat([
0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA,
0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA,
0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA,
0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA,
0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA,
0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA,
0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA,
0x3E47C5C2, 0x3F0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0xBE47C5C2, 0xBF0E39DA, 0x3E47C5C2, 0x3F0E39DA,
]),
arrayIntToFloat([
0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799, 0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799,
0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799, 0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799,
0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799, 0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799,
0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799, 0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799,
0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799, 0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799,
0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799, 0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799,
0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799, 0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799,
0x3DC8BD36, 0x3E94A031, 0x3EF15AEA, 0x3F226799, 0xBDC8BD36, 0xBE94A031, 0xBEF15AEA, 0xBF226799,
]),
arrayIntToFloat([
0xBD48FB30, 0xBE164083, 0xBE78CFCC, 0xBEAC7CD4, 0xBEDAE880, 0xBF039C3D, 0xBF187FC0, 0xBF2BEB4A,
0x3D48FB30, 0x3E164083, 0x3E78CFCC, 0x3EAC7CD4, 0x3EDAE880, 0x3F039C3D, 0x3F187FC0, 0x3F2BEB4A,
0x3D48FB30, 0x3E164083, 0x3E78CFCC, 0x3EAC7CD4, 0x3EDAE880, 0x3F039C3D, 0x3F187FC0, 0x3F2BEB4A,
0xBD48FB30, 0xBE164083, 0xBE78CFCC, 0xBEAC7CD4, 0xBEDAE880, 0xBF039C3D, 0xBF187FC0, 0xBF2BEB4A,
0x3D48FB30, 0x3E164083, 0x3E78CFCC, 0x3EAC7CD4, 0x3EDAE880, 0x3F039C3D, 0x3F187FC0, 0x3F2BEB4A,
0xBD48FB30, 0xBE164083, 0xBE78CFCC, 0xBEAC7CD4, 0xBEDAE880, 0xBF039C3D, 0xBF187FC0, 0xBF2BEB4A,
0xBD48FB30, 0xBE164083, 0xBE78CFCC, 0xBEAC7CD4, 0xBEDAE880, 0xBF039C3D, 0xBF187FC0, 0xBF2BEB4A,
0x3D48FB30, 0x3E164083, 0x3E78CFCC, 0x3EAC7CD4, 0x3EDAE880, 0x3F039C3D, 0x3F187FC0, 0x3F2BEB4A,
]),
arrayIntToFloat([
0xBCC90AB0, 0xBD96A905, 0xBDFAB273, 0xBE2F10A2, 0xBE605C13, 0xBE888E93, 0xBEA09AE5, 0xBEB8442A,
0xBECF7BCA, 0xBEE63375, 0xBEFC5D27, 0xBF08F59B, 0xBF13682A, 0xBF1D7FD1, 0xBF273656, 0xBF3085BB,
0x3CC90AB0, 0x3D96A905, 0x3DFAB273, 0x3E2F10A2, 0x3E605C13, 0x3E888E93, 0x3EA09AE5, 0x3EB8442A,
0x3ECF7BCA, 0x3EE63375, 0x3EFC5D27, 0x3F08F59B, 0x3F13682A, 0x3F1D7FD1, 0x3F273656, 0x3F3085BB,
0x3CC90AB0, 0x3D96A905, 0x3DFAB273, 0x3E2F10A2, 0x3E605C13, 0x3E888E93, 0x3EA09AE5, 0x3EB8442A,
0x3ECF7BCA, 0x3EE63375, 0x3EFC5D27, 0x3F08F59B, 0x3F13682A, 0x3F1D7FD1, 0x3F273656, 0x3F3085BB,
0xBCC90AB0, 0xBD96A905, 0xBDFAB273, 0xBE2F10A2, 0xBE605C13, 0xBE888E93, 0xBEA09AE5, 0xBEB8442A,
0xBECF7BCA, 0xBEE63375, 0xBEFC5D27, 0xBF08F59B, 0xBF13682A, 0xBF1D7FD1, 0xBF273656, 0xBF3085BB,
]),
arrayIntToFloat([
0xBC490E90, 0xBD16C32C, 0xBD7B2B74, 0xBDAFB680, 0xBDE1BC2E, 0xBE09CF86, 0xBE22ABB6, 0xBE3B6ECF,
0xBE541501, 0xBE6C9A7F, 0xBE827DC0, 0xBE8E9A22, 0xBE9AA086, 0xBEA68F12, 0xBEB263EF, 0xBEBE1D4A,
0xBEC9B953, 0xBED53641, 0xBEE0924F, 0xBEEBCBBB, 0xBEF6E0CB, 0xBF00E7E4, 0xBF064B82, 0xBF0B9A6B,
0xBF10D3CD, 0xBF15F6D9, 0xBF1B02C6, 0xBF1FF6CB, 0xBF24D225, 0xBF299415, 0xBF2E3BDE, 0xBF32C8C9,
0x3C490E90, 0x3D16C32C, 0x3D7B2B74, 0x3DAFB680, 0x3DE1BC2E, 0x3E09CF86, 0x3E22ABB6, 0x3E3B6ECF,
0x3E541501, 0x3E6C9A7F, 0x3E827DC0, 0x3E8E9A22, 0x3E9AA086, 0x3EA68F12, 0x3EB263EF, 0x3EBE1D4A,
0x3EC9B953, 0x3ED53641, 0x3EE0924F, 0x3EEBCBBB, 0x3EF6E0CB, 0x3F00E7E4, 0x3F064B82, 0x3F0B9A6B,
0x3F10D3CD, 0x3F15F6D9, 0x3F1B02C6, 0x3F1FF6CB, 0x3F24D225, 0x3F299415, 0x3F2E3BDE, 0x3F32C8C9,
]),
arrayIntToFloat([
0xBBC90F88, 0xBC96C9B6, 0xBCFB49BA, 0xBD2FE007, 0xBD621469, 0xBD8A200A, 0xBDA3308C, 0xBDBC3AC3,
0xBDD53DB9, 0xBDEE3876, 0xBE039502, 0xBE1008B7, 0xBE1C76DE, 0xBE28DEFC, 0xBE354098, 0xBE419B37,
0xBE4DEE60, 0xBE5A3997, 0xBE667C66, 0xBE72B651, 0xBE7EE6E1, 0xBE8586CE, 0xBE8B9507, 0xBE919DDD,
0xBE97A117, 0xBE9D9E78, 0xBEA395C5, 0xBEA986C4, 0xBEAF713A, 0xBEB554EC, 0xBEBB31A0, 0xBEC1071E,
0xBEC6D529, 0xBECC9B8B, 0xBED25A09, 0xBED8106B, 0xBEDDBE79, 0xBEE363FA, 0xBEE900B7, 0xBEEE9479,
0xBEF41F07, 0xBEF9A02D, 0xBEFF17B2, 0xBF0242B1, 0xBF04F484, 0xBF07A136, 0xBF0A48AD, 0xBF0CEAD0,
0xBF0F8784, 0xBF121EB0, 0xBF14B039, 0xBF173C07, 0xBF19C200, 0xBF1C420C, 0xBF1EBC12, 0xBF212FF9,
0xBF239DA9, 0xBF26050A, 0xBF286605, 0xBF2AC082, 0xBF2D1469, 0xBF2F61A5, 0xBF31A81D, 0xBF33E7BC,
])
],
list3Float: arrayIntToFloat([
0x3A3504F0, 0x3B0183B8, 0x3B70C538, 0x3BBB9268, 0x3C04A809, 0x3C308200, 0x3C61284C, 0x3C8B3F17,
0x3CA83992, 0x3CC77FBD, 0x3CE91110, 0x3D0677CD, 0x3D198FC4, 0x3D2DD35C, 0x3D434643, 0x3D59ECC1,
0x3D71CBA8, 0x3D85741E, 0x3D92A413, 0x3DA078B4, 0x3DAEF522, 0x3DBE1C9E, 0x3DCDF27B, 0x3DDE7A1D,
0x3DEFB6ED, 0x3E00D62B, 0x3E0A2EDA, 0x3E13E72A, 0x3E1E00B1, 0x3E287CF2, 0x3E335D55, 0x3E3EA321,
0x3E4A4F75, 0x3E56633F, 0x3E62DF37, 0x3E6FC3D1, 0x3E7D1138, 0x3E8563A2, 0x3E8C72B7, 0x3E93B561,
0x3E9B2AEF, 0x3EA2D26F, 0x3EAAAAAB, 0x3EB2B222, 0x3EBAE706, 0x3EC34737, 0x3ECBD03D, 0x3ED47F46,
0x3EDD5128, 0x3EE6425C, 0x3EEF4EFF, 0x3EF872D7, 0x3F00D4A9, 0x3F0576CA, 0x3F0A1D3B, 0x3F0EC548,
0x3F136C25, 0x3F180EF2, 0x3F1CAAC2, 0x3F213CA2, 0x3F25C1A5, 0x3F2A36E7, 0x3F2E9998, 0x3F32E705,
0xBF371C9E, 0xBF3B37FE, 0xBF3F36F2, 0xBF431780, 0xBF46D7E6, 0xBF4A76A4, 0xBF4DF27C, 0xBF514A6F,
0xBF547DC5, 0xBF578C03, 0xBF5A74EE, 0xBF5D3887, 0xBF5FD707, 0xBF6250DA, 0xBF64A699, 0xBF66D908,
0xBF68E90E, 0xBF6AD7B1, 0xBF6CA611, 0xBF6E5562, 0xBF6FE6E7, 0xBF715BEF, 0xBF72B5D1, 0xBF73F5E6,
0xBF751D89, 0xBF762E13, 0xBF7728D7, 0xBF780F20, 0xBF78E234, 0xBF79A34C, 0xBF7A5397, 0xBF7AF439,
0xBF7B8648, 0xBF7C0ACE, 0xBF7C82C8, 0xBF7CEF26, 0xBF7D50CB, 0xBF7DA88E, 0xBF7DF737, 0xBF7E3D86,
0xBF7E7C2A, 0xBF7EB3CC, 0xBF7EE507, 0xBF7F106C, 0xBF7F3683, 0xBF7F57CA, 0xBF7F74B6, 0xBF7F8DB6,
0xBF7FA32E, 0xBF7FB57B, 0xBF7FC4F6, 0xBF7FD1ED, 0xBF7FDCAD, 0xBF7FE579, 0xBF7FEC90, 0xBF7FF22E,
0xBF7FF688, 0xBF7FF9D0, 0xBF7FFC32, 0xBF7FFDDA, 0xBF7FFEED, 0xBF7FFF8F, 0xBF7FFFDF, 0xBF7FFFFC,
])
};
function decode5(channel, index) {
let s = channel.block, d = channel.wav1;
for (let i = 0, count1 = 1, count2 = 0x40; i < 7; i++ , count1 <<= 1, count2 >>>= 1) {
let x = 0, d1 = 0, d2 = count2;
for (let j = 0; j < count1; j++) {
for (let k = 0; k < count2; k++) {
const a = s[x++];
const b = s[x++];
d[d1++] = b + a;
d[d2++] = a - b;
}
d1 += count2;
d2 += count2;
}
const w = s; s = d; d = w;
}
s = channel.wav1; d = channel.block;
for (let i = 0, count1 = 0x40, count2 = 1; i < 7; i++ , count1 >>>= 1, count2 <<= 1) {
const list1Float = DECODE5.list1Float[i];
const list2Float = DECODE5.list2Float[i];
let x = 0, y = 0, s1 = 0, s2 = count2, d1 = 0, d2 = count2 * 2 - 1;
for (let j = 0; j < count1; j++) {
for (let k = 0; k < count2; k++) {
const a = s[s1++];
const b = s[s2++];
const c = list1Float[x++];
const e = list2Float[y++];
d[d1++] = a * c - b * e;
d[d2--] = a * e + b * c;
}
s1 += count2;
s2 += count2;
d1 += count2;
d2 += count2 * 3;
}
const w = s; s = d; d = w;
}
d = channel.wav2;
for (let i = 0; i < 0x80; i++) d[i] = s[i];
s = DECODE5.list3Float; d = channel.wave[index];
let s1 = channel.wav2, s2 = channel.wav3;
for (let i = 0; i < 0x40; i++) d[i] = s1[0x40 + i] * s[i] + s2[i];
for (let i = 0; i < 0x40; i++) d[0x40 + i] = s[0x40 + i] * s1[0x7f - i] - s2[0x40 + i];
for (let i = 0; i < 0x40; i++) s2[i] = s1[0x3f - i] * s[0x7f - i];
for (let i = 0; i < 0x40; i++) s2[0x40 + i] = s[0x3f - i] * s1[i];
}
function decodeBlock(hca, buffer, address) {
const block = buffer.slice(address, address + hca.blockSize);
if (checkSum(block, hca.blockSize)) return false;
if (hca.ciphType) decryptBlock(hca.ciphTable, block);
const reader = new BlockReader(block);
const magic = reader.getBit(16);
if (magic === 0xFFFF) {
const a = (reader.getBit(9) << 8) - reader.getBit(7);
const comp = hca.comp;
for (let i = 0; i < hca.channelCount; i++) {
decode1(hca.channels[i], reader, comp.r09, a, hca.athTable);
}
for (let i = 0; i < 8; i++) {
for (let j = 0; j < hca.channelCount; j++) decode2(hca.channels[j], reader);
for (let j = 0; j < hca.channelCount; j++) decode3(hca.channels[j], comp.r09, comp.r08, comp.r07 + comp.r06, comp.r05);
for (let j = 0; j < hca.channelCount - 1; j++) decode4(hca.channels[j], hca.channels[j + 1], i, comp.r05 - comp.r06, comp.r06, comp.r07);
for (let j = 0; j < hca.channelCount; j++) decode5(hca.channels[j], i);
}
}
return true;
}
async function decodeHCA(buffer, key, awbKey, volume) {
if (volume === undefined || volume === null) volume = 1.0;
if (typeof (buffer) === 'string') buffer = await readFile(buffer);
const hca = parseHCA(buffer, key, awbKey);
if (!hca) throw new Error(`Not HCA File`);
if (!initDecode(hca)) throw new Error(`Init Decode Failed`);
let n = 0, address = hca.dataOffset;
const pcmData = new Float32Array(hca.blockCount * 8 * 0x80 * hca.channelCount);
for (let m = 0; m < hca.blockCount; m++ , address += hca.blockSize) {
if (!decodeBlock(hca, buffer, address)) throw new Error(`Decode Error`);
for (let i = 0; i < 8; i++) {
for (let j = 0; j < 0x80; j++) {
for (let k = 0; k < hca.channelCount; k++) {
pcmData[n++] = hca.channels[k].wave[i][j] * hca.volume * volume;
}
}
}
}
hca.pcmData = pcmData;
return hca;
}
exports.decode = decodeHCA;
async function writeWavFile(wavPath, mode, channelCount, samplingRate, pcmData) {
const wavRiff = Buffer.alloc(36);
wavRiff.write('RIFF', 0);
wavRiff.write('WAVEfmt ', 8);
wavRiff.writeUInt32LE(0x10, 0x10);
const wavData = Buffer.alloc(8);
wavData.write('data', 0);
const wav = {};
wav.fmtType = (mode > 0) ? 1 : 3;
wav.fmtChannelCount = channelCount;
wav.fmtBitCount = (mode > 0) ? mode : 32;
wav.fmtSamplingRate = samplingRate;
wav.fmtSamplingSize = Math.floor(wav.fmtBitCount / 8 * wav.fmtChannelCount);
wav.fmtSamplesPerSec = wav.fmtSamplingRate * wav.fmtSamplingSize;
wavRiff.writeUInt16LE(wav.fmtType, 0x14);
wavRiff.writeUInt16LE(wav.fmtChannelCount, 0x16);
wavRiff.writeUInt32LE(wav.fmtSamplingRate, 0x18);
wavRiff.writeUInt32LE(wav.fmtSamplesPerSec, 0x1C);
wavRiff.writeUInt32LE(wav.fmtSamplingSize, 0x20);
wavRiff.writeUInt16LE(wav.fmtBitCount, 0x22);
wav.dataSize = Math.floor(pcmData.length * wav.fmtSamplingSize / channelCount);
wav.riffSize = 0x1C + wavData.length + wav.dataSize;
wavData.writeUInt32LE(wav.dataSize, 0x4);
wavRiff.writeUInt32LE(wav.riffSize, 0x4);
await writeFile(wavPath, Buffer.concat([wavRiff, wavData]));
const buffer = Buffer.alloc(0xFFFFF);
let n = 0, once = 0;
for (let i = 0; i < pcmData.length; i++) {
const f = pcmData[i];
if (f > 1) { f = 1; } else if (f < -1) { f = -1; }
switch (mode) {
case 0:
buffer.writeFloatLE(f, n);
n += 4;
break;
case 8:
buffer.writeInt8(Math.floor(f * 0x7F) + 0x80, n);
n += 1;
break;
case 16:
buffer.writeInt16LE(Math.floor(f * 0x7FFF), n);
n += 2;
break;
case 24:
buffer.writeInt32LE(Math.floor(f * 0x7FFFFF), n);
n += 3;
break;
case 32:
buffer.writeInt32LE(Math.floor(f * 0x7FFFFFFF), n);
n += 4;
break;
}
if (once === 0) once = n;
if (n + once > buffer.length) {
await appendFile(wavPath, buffer.slice(0, n));
n = 0;
}
}
if (n > 0) await appendFile(wavPath, buffer.slice(0, n));
}
exports.writeWavFile = writeWavFile;
async function decodeHCAToWav(buffer, key, awbKey, wavPath, volume, mode) {
if (mode === undefined || mode === null) mode = 16;
if (typeof (buffer) === 'string') {
const pathInfo = path.parse(buffer);
console.log(`Reading ${pathInfo.base}...`);
if (wavPath === undefined) wavPath = path.join(pathInfo.dir, pathInfo.name + '.wav');
}
const hca = await decodeHCA(buffer, key, awbKey, volume);
console.log(`Writing ${path.parse(wavPath).base}...`);
await writeWavFile(wavPath, mode, hca.channelCount, hca.samplingRate, hca.pcmData);
}
exports.decodeToWav = decodeHCAToWav;
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