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Aaru/Aaru.Decoders/CD/Subchannel.cs

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// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Subchannel.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Device structures decoders.
//
// --[ License ] --------------------------------------------------------------
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2023 Natalia Portillo
// ****************************************************************************/
using System;
using Aaru.Checksums;
namespace Aaru.Decoders.CD;
public static class Subchannel
{
static readonly string[] _isrcTable =
{
// 0x00
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "", "", "", "", "", "",
// 0x10
"", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",
// 0x20
"P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "", "", "", "", "",
// 0x30
"", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ""
};
public static void BinaryToBcdQ(byte[] q)
{
if((q[0] & 0xF) == 1 || (q[0] & 0xF) == 5)
{
q[1] = (byte)((q[1] / 10 << 4) + q[1] % 10);
q[2] = (byte)((q[2] / 10 << 4) + q[2] % 10);
q[3] = (byte)((q[3] / 10 << 4) + q[3] % 10);
q[4] = (byte)((q[4] / 10 << 4) + q[4] % 10);
q[5] = (byte)((q[5] / 10 << 4) + q[5] % 10);
q[6] = (byte)((q[6] / 10 << 4) + q[6] % 10);
q[7] = (byte)((q[7] / 10 << 4) + q[7] % 10);
q[8] = (byte)((q[8] / 10 << 4) + q[8] % 10);
}
q[9] = (byte)((q[9] / 10 << 4) + q[9] % 10);
}
public static void BcdToBinaryQ(byte[] q)
{
if((q[0] & 0xF) == 1 || (q[0] & 0xF) == 5)
{
q[1] = (byte)(q[1] / 16 * 10 + (q[1] & 0x0F));
q[2] = (byte)(q[2] / 16 * 10 + (q[2] & 0x0F));
q[3] = (byte)(q[3] / 16 * 10 + (q[3] & 0x0F));
q[4] = (byte)(q[4] / 16 * 10 + (q[4] & 0x0F));
q[5] = (byte)(q[5] / 16 * 10 + (q[5] & 0x0F));
q[6] = (byte)(q[6] / 16 * 10 + (q[6] & 0x0F));
q[7] = (byte)(q[7] / 16 * 10 + (q[7] & 0x0F));
q[8] = (byte)(q[8] / 16 * 10 + (q[8] & 0x0F));
}
q[9] = (byte)(q[9] / 16 * 10 + (q[9] & 0x0F));
}
public static byte[] ConvertQToRaw(byte[] subchannel)
{
var pos = 0;
var subBuf = new byte[subchannel.Length * 6];
for(var i = 0; i < subchannel.Length; i += 16)
{
// P
if((subchannel[i + 15] & 0x80) <= 0)
pos += 12;
else
{
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
subBuf[pos++] = 0xFF;
}
// Q
subBuf[pos++] = subchannel[i + 0];
subBuf[pos++] = subchannel[i + 1];
subBuf[pos++] = subchannel[i + 2];
subBuf[pos++] = subchannel[i + 3];
subBuf[pos++] = subchannel[i + 4];
subBuf[pos++] = subchannel[i + 5];
subBuf[pos++] = subchannel[i + 6];
subBuf[pos++] = subchannel[i + 7];
subBuf[pos++] = subchannel[i + 8];
subBuf[pos++] = subchannel[i + 9];
subBuf[pos++] = subchannel[i + 10];
subBuf[pos++] = subchannel[i + 11];
// R to W
pos += 72;
}
return Interleave(subBuf);
}
public static byte[] Interleave(byte[] subchannel)
{
var subBuf = new byte[subchannel.Length];
var outPos = 0;
for(var inPos = 0; inPos < subchannel.Length; inPos += 96)
{
for(var i = 0; i < 12; i++)
{
// P
subBuf[outPos + 0] += (byte)(subchannel[inPos + i + 0] & 0x80);
subBuf[outPos + 1] += (byte)((subchannel[inPos + i + 0] & 0x40) << 1);
subBuf[outPos + 2] += (byte)((subchannel[inPos + i + 0] & 0x20) << 2);
subBuf[outPos + 3] += (byte)((subchannel[inPos + i + 0] & 0x10) << 3);
subBuf[outPos + 4] += (byte)((subchannel[inPos + i + 0] & 0x08) << 4);
subBuf[outPos + 5] += (byte)((subchannel[inPos + i + 0] & 0x04) << 5);
subBuf[outPos + 6] += (byte)((subchannel[inPos + i + 0] & 0x02) << 6);
subBuf[outPos + 7] += (byte)((subchannel[inPos + i + 0] & 0x01) << 7);
// Q
subBuf[outPos + 0] += (byte)((subchannel[inPos + i + 12] & 0x80) >> 1);
subBuf[outPos + 1] += (byte)(subchannel[inPos + i + 12] & 0x40);
subBuf[outPos + 2] += (byte)((subchannel[inPos + i + 12] & 0x20) << 1);
subBuf[outPos + 3] += (byte)((subchannel[inPos + i + 12] & 0x10) << 2);
subBuf[outPos + 4] += (byte)((subchannel[inPos + i + 12] & 0x08) << 3);
subBuf[outPos + 5] += (byte)((subchannel[inPos + i + 12] & 0x04) << 4);
subBuf[outPos + 6] += (byte)((subchannel[inPos + i + 12] & 0x02) << 5);
subBuf[outPos + 7] += (byte)((subchannel[inPos + i + 12] & 0x01) << 6);
// R
subBuf[outPos + 0] += (byte)((subchannel[inPos + i + 24] & 0x80) >> 2);
subBuf[outPos + 1] += (byte)((subchannel[inPos + i + 24] & 0x40) >> 1);
subBuf[outPos + 2] += (byte)(subchannel[inPos + i + 24] & 0x20);
subBuf[outPos + 3] += (byte)((subchannel[inPos + i + 24] & 0x10) << 1);
subBuf[outPos + 4] += (byte)((subchannel[inPos + i + 24] & 0x08) << 2);
subBuf[outPos + 5] += (byte)((subchannel[inPos + i + 24] & 0x04) << 3);
subBuf[outPos + 6] += (byte)((subchannel[inPos + i + 24] & 0x02) << 4);
subBuf[outPos + 7] += (byte)((subchannel[inPos + i + 24] & 0x01) << 5);
// S
subBuf[outPos + 0] += (byte)((subchannel[inPos + i + 36] & 0x80) >> 3);
subBuf[outPos + 1] += (byte)((subchannel[inPos + i + 36] & 0x40) >> 2);
subBuf[outPos + 2] += (byte)((subchannel[inPos + i + 36] & 0x20) >> 1);
subBuf[outPos + 3] += (byte)(subchannel[inPos + i + 36] & 0x10);
subBuf[outPos + 4] += (byte)((subchannel[inPos + i + 36] & 0x08) << 1);
subBuf[outPos + 5] += (byte)((subchannel[inPos + i + 36] & 0x04) << 2);
subBuf[outPos + 6] += (byte)((subchannel[inPos + i + 36] & 0x02) << 3);
subBuf[outPos + 7] += (byte)((subchannel[inPos + i + 36] & 0x01) << 4);
// T
subBuf[outPos + 0] += (byte)((subchannel[inPos + i + 48] & 0x80) >> 4);
subBuf[outPos + 1] += (byte)((subchannel[inPos + i + 48] & 0x40) >> 3);
subBuf[outPos + 2] += (byte)((subchannel[inPos + i + 48] & 0x20) >> 2);
subBuf[outPos + 3] += (byte)((subchannel[inPos + i + 48] & 0x10) >> 1);
subBuf[outPos + 4] += (byte)(subchannel[inPos + i + 48] & 0x08);
subBuf[outPos + 5] += (byte)((subchannel[inPos + i + 48] & 0x04) << 1);
subBuf[outPos + 6] += (byte)((subchannel[inPos + i + 48] & 0x02) << 2);
subBuf[outPos + 7] += (byte)((subchannel[inPos + i + 48] & 0x01) << 3);
// U
subBuf[outPos + 0] += (byte)((subchannel[inPos + i + 60] & 0x80) >> 5);
subBuf[outPos + 1] += (byte)((subchannel[inPos + i + 60] & 0x40) >> 4);
subBuf[outPos + 2] += (byte)((subchannel[inPos + i + 60] & 0x20) >> 3);
subBuf[outPos + 3] += (byte)((subchannel[inPos + i + 60] & 0x10) >> 2);
subBuf[outPos + 4] += (byte)((subchannel[inPos + i + 60] & 0x08) >> 1);
subBuf[outPos + 5] += (byte)(subchannel[inPos + i + 60] & 0x04);
subBuf[outPos + 6] += (byte)((subchannel[inPos + i + 60] & 0x02) << 1);
subBuf[outPos + 7] += (byte)((subchannel[inPos + i + 60] & 0x01) << 2);
// V
subBuf[outPos + 0] += (byte)((subchannel[inPos + i + 72] & 0x80) >> 6);
subBuf[outPos + 1] += (byte)((subchannel[inPos + i + 72] & 0x40) >> 5);
subBuf[outPos + 2] += (byte)((subchannel[inPos + i + 72] & 0x20) >> 4);
subBuf[outPos + 3] += (byte)((subchannel[inPos + i + 72] & 0x10) >> 3);
subBuf[outPos + 4] += (byte)((subchannel[inPos + i + 72] & 0x08) >> 2);
subBuf[outPos + 5] += (byte)((subchannel[inPos + i + 72] & 0x04) >> 1);
subBuf[outPos + 6] += (byte)(subchannel[inPos + i + 72] & 0x02);
subBuf[outPos + 7] += (byte)((subchannel[inPos + i + 72] & 0x01) << 1);
// W
subBuf[outPos + 0] += (byte)((subchannel[inPos + i + 84] & 0x80) >> 7);
subBuf[outPos + 1] += (byte)((subchannel[inPos + i + 84] & 0x40) >> 6);
subBuf[outPos + 2] += (byte)((subchannel[inPos + i + 84] & 0x20) >> 5);
subBuf[outPos + 3] += (byte)((subchannel[inPos + i + 84] & 0x10) >> 4);
subBuf[outPos + 4] += (byte)((subchannel[inPos + i + 84] & 0x08) >> 3);
subBuf[outPos + 5] += (byte)((subchannel[inPos + i + 84] & 0x04) >> 2);
subBuf[outPos + 6] += (byte)((subchannel[inPos + i + 84] & 0x02) >> 1);
subBuf[outPos + 7] += (byte)(subchannel[inPos + i + 84] & 0x01);
outPos += 8;
}
}
return subBuf;
}
public static byte[] Deinterleave(byte[] subchannel)
{
var subBuf = new byte[subchannel.Length];
var inPos = 0;
for(var outPos = 0; outPos < subchannel.Length; outPos += 96)
{
for(var i = 0; i < 12; i++)
{
// P
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 0] & 0x80) >> 0);
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 1] & 0x80) >> 1);
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 2] & 0x80) >> 2);
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 3] & 0x80) >> 3);
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 4] & 0x80) >> 4);
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 5] & 0x80) >> 5);
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 6] & 0x80) >> 6);
subBuf[outPos + i + 0] += (byte)((subchannel[inPos + 7] & 0x80) >> 7);
// Q
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 0] & 0x40) << 1);
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 1] & 0x40) >> 0);
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 2] & 0x40) >> 1);
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 3] & 0x40) >> 2);
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 4] & 0x40) >> 3);
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 5] & 0x40) >> 4);
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 6] & 0x40) >> 5);
subBuf[outPos + i + 12] += (byte)((subchannel[inPos + 7] & 0x40) >> 6);
// R
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 0] & 0x20) << 2);
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 1] & 0x20) << 1);
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 2] & 0x20) >> 0);
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 3] & 0x20) >> 1);
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 4] & 0x20) >> 2);
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 5] & 0x20) >> 3);
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 6] & 0x20) >> 4);
subBuf[outPos + i + 24] += (byte)((subchannel[inPos + 7] & 0x20) >> 5);
// S
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 0] & 0x10) << 3);
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 1] & 0x10) << 2);
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 2] & 0x10) << 1);
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 3] & 0x10) >> 0);
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 4] & 0x10) >> 1);
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 5] & 0x10) >> 2);
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 6] & 0x10) >> 3);
subBuf[outPos + i + 36] += (byte)((subchannel[inPos + 7] & 0x10) >> 4);
// T
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 0] & 0x8) << 4);
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 1] & 0x8) << 3);
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 2] & 0x8) << 2);
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 3] & 0x8) << 1);
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 4] & 0x8) >> 0);
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 5] & 0x8) >> 1);
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 6] & 0x8) >> 2);
subBuf[outPos + i + 48] += (byte)((subchannel[inPos + 7] & 0x8) >> 3);
// U
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 0] & 0x4) << 5);
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 1] & 0x4) << 4);
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 2] & 0x4) << 3);
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 3] & 0x4) << 2);
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 4] & 0x4) << 1);
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 5] & 0x4) >> 0);
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 6] & 0x4) >> 1);
subBuf[outPos + i + 60] += (byte)((subchannel[inPos + 7] & 0x4) >> 2);
// V
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 0] & 0x2) << 6);
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 1] & 0x2) << 5);
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 2] & 0x2) << 4);
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 3] & 0x2) << 3);
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 4] & 0x2) << 2);
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 5] & 0x2) << 1);
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 6] & 0x2) >> 0);
subBuf[outPos + i + 72] += (byte)((subchannel[inPos + 7] & 0x2) >> 1);
// W
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 0] & 0x1) << 7);
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 1] & 0x1) << 6);
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 2] & 0x1) << 5);
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 3] & 0x1) << 4);
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 4] & 0x1) << 3);
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 5] & 0x1) << 2);
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 6] & 0x1) << 1);
subBuf[outPos + i + 84] += (byte)((subchannel[inPos + 7] & 0x1) >> 0);
inPos += 8;
}
}
return subBuf;
}
public static string PrettifyQ(byte[] subBuf, bool bcd, long lba, bool corruptedPause, bool pause, bool rwEmpty)
{
CRC16CcittContext.Data(subBuf, 10, out byte[] crc);
bool crcOk = crc[0] == subBuf[10] && crc[1] == subBuf[11];
long minute = (lba + 150) / 4500;
long second = (lba + 150) % 4500 / 75;
long frame = (lba + 150) % 4500 % 75;
string area;
int control = (subBuf[0] & 0xF0) / 16;
int adr = subBuf[0] & 0x0F;
string controlInfo = ((control & 0xC) / 4) switch
{
0 => (control & 0x01) == 1
? Localization.Subchannel_PrettifyQ_stereo_audio_with_pre_emphasis
: Localization.Subchannel_PrettifyQ_stereo_audio_without_pre_emphasis,
1 => (control & 0x01) == 1
? Localization.Subchannel_PrettifyQ_incremental_data
: Localization.Subchannel_PrettifyQ_uninterrupted_data,
2 => (control & 0x01) == 1
? Localization.Subchannel_PrettifyQ_quadraphonic_audio_with_pre_emphasis
: Localization.Subchannel_PrettifyQ_quadraphonic_audio_without_pre_emphasis,
_ => string.Format(Localization.Subchannel_PrettifyQ_reserved_control_value__0_,
control & 0x01)
};
string copy = (control & 0x02) > 0
? Localization.Subchannel_PrettifyQ_copy_permitted
: Localization.Subchannel_PrettifyQ_copy_prohibited;
if(bcd)
BcdToBinaryQ(subBuf);
int qPos = subBuf[3] * 60 * 75 + subBuf[4] * 75 + subBuf[5] - 150;
byte pmin = subBuf[7];
byte psec = subBuf[8];
int qStart = subBuf[7] * 60 * 75 + subBuf[8] * 75 + subBuf[9] - 150;
int nextPos = subBuf[3] * 60 * 75 + subBuf[4] * 75 + subBuf[5] - 150;
byte zero = subBuf[6];
int maxOut = subBuf[7] * 60 * 75 + subBuf[8] * 75 + subBuf[9] - 150;
bool final = subBuf[3] == 0xFF && subBuf[4] == 0xFF && subBuf[5] == 0xFF;
BinaryToBcdQ(subBuf);
if(lba < 0)
{
area = Localization.Subchannel_PrettifyQ_Lead_In;
switch(adr)
{
case 1 when subBuf[2] < 0xA0:
return
string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_position_9_10_11_LBA_12_track_13_starts_at_14_15_16_LBA_17_Q_CRC_18_19_20_R_W_21,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
subBuf[3], subBuf[4], subBuf[5], qPos, subBuf[2], subBuf[7], subBuf[8], subBuf[9],
qStart, subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
case 1 when subBuf[2] == 0xA0:
{
string format = subBuf[8] switch
{
0x00 => Localization.Subchannel_PrettifyQ_CD_DA_CD_ROM,
0x10 => Localization.Subchannel_PrettifyQ_CD_i,
0x20 => Localization.Subchannel_PrettifyQ_CD_ROM_XA,
_ => string.Format(Localization.Subchannel_PrettifyQ_unknown_0, subBuf[0])
};
return
string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_position_9_10_11_LBA_12_track_13_is_first_program_area_track_in_14_format_Q_CRC_15_16_17_R_W_18,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
subBuf[3], subBuf[4], subBuf[5], qPos, subBuf[2], format, subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
}
case 1 when subBuf[2] == 0xA1:
return
string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_position_9_10_11_LBA_12_track_13_is_last_program_area_track_Q_CRC_14_15_16_R_W_17,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
subBuf[3], subBuf[4], subBuf[5], qPos, subBuf[2], subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
case 1:
return subBuf[2] == 0xA2
? string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_position_9_10_11_LBA_12_track_13_starts_at_14_15_16_LBA_17_Q_CRC_18_19_20_R_W_21,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause,
controlInfo, copy,
adr, subBuf[3], subBuf[4], subBuf[5], qPos, subBuf[2], subBuf[7],
subBuf[8], subBuf[9], qStart, subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty)
: string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_8_9_10_11_12_13_14_15_16_17_CRC_18_19_20_R_W_21,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause,
controlInfo, copy,
subBuf[0], subBuf[1], subBuf[2], subBuf[3], subBuf[4], subBuf[5],
subBuf[6], subBuf[7], subBuf[8], subBuf[9], subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
case 2:
return
string.Format(Localization.Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_MCN_9_frame_10_CRC_11_12_13_R_W_14,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
DecodeMcn(subBuf), subBuf[9], subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
}
if(adr != 5)
{
return
string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_8_9_10_11_12_13_14_15_16_17_CRC_18_19_20_R_W_21,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
subBuf[0],
subBuf[1], subBuf[2], subBuf[3], subBuf[4], subBuf[5], subBuf[6], subBuf[7],
subBuf[8], subBuf[9], subBuf[10], subBuf[11],
crcOk ? Localization.Subchannel_PrettifyQ_OK : Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
}
switch(subBuf[2])
{
case <= 0x40:
return
string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_skip_interval_start_time_9_10_11_skip_interval_stop_time_12_13_14_CRC_15_16_17_R_W_18,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
subBuf[7], subBuf[8], subBuf[9], subBuf[3], subBuf[4], subBuf[5], subBuf[10],
subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
case 0xB0:
return final
? string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_next_program_area_can_start_at_9_10_11_LBA_12_last_session_13_mode_5_pointers_CRC_14_15_16_R_W_17,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause,
controlInfo, copy,
adr, subBuf[3], subBuf[4], subBuf[5], nextPos, zero, subBuf[10],
subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty)
: string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_next_program_area_can_start_at_9_10_11_LBA_12_maximum_Lead_out_at_13_14_15_LBA_16_17_mode_5_pointers_CRC_18_19_20_R_W_21,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause,
controlInfo, copy,
adr, subBuf[3], subBuf[4], subBuf[5], nextPos, subBuf[7], subBuf[8],
subBuf[9], maxOut, zero, subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
case 0xB1:
return
string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_9_skip_interval_pointers_10_skip_track_assignments_CRC_11_12_13_R_W_14,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr, pmin,
psec, subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
}
if(subBuf[2] != 0xB2 && subBuf[2] != 0xB3 && subBuf[2] != 0xB4)
{
return subBuf[2] == 0xC0
? string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_ATIP_values_9_10_11_first_disc_Lead_in_starts_at_12_13_14_LBA_15_CRC_16_17_18_R_W_19,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo,
copy, adr,
subBuf[3], subBuf[4], subBuf[5], subBuf[7], subBuf[8], subBuf[9], qStart,
subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty)
: string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_8_9_10_11_12_13_14_15_16_17_CRC_18_19_20_R_W_21,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo,
copy,
subBuf[0], subBuf[1], subBuf[2], subBuf[3], subBuf[4], subBuf[5], subBuf[6],
subBuf[7], subBuf[8], subBuf[9], subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
}
var skipTracks = $"{subBuf[3]:X2}";
if(subBuf[4] > 0)
skipTracks += $", {subBuf[4]:X2}";
if(subBuf[5] > 0)
skipTracks += $", {subBuf[4]:X2}";
if(subBuf[7] > 0)
skipTracks += $", {subBuf[4]:X2}";
if(subBuf[8] > 0)
skipTracks += $", {subBuf[4]:X2}";
if(subBuf[9] > 0)
skipTracks += $", {subBuf[4]:X2}";
return
string.Format(Localization.Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_tracks_9_to_be_skipped_CRC_10_11_12_R_W_13,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy, adr,
skipTracks,
subBuf[10], subBuf[11],
crcOk ? Localization.Subchannel_PrettifyQ_OK : Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty);
}
area = subBuf[1] == 0xAA
? Localization.Subchannel_PrettifyQ_Lead_out
: Localization.Subchannel_PrettifyQ_Program;
return adr switch
{
1 =>
string.Format(
Localization.
Subchannel_PrettifyQ_0_D2_1_2_LBA_3_4_area_5_6_7_Q_mode_8_position_track_9_index_10_relative_position_11_12_13_LBA_14_absolute_position_15_16_17_LBA_18_Q_CRC_19_20_21_R_W_22,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
subBuf[1], subBuf[2], subBuf[3], subBuf[4], subBuf[5], qPos + 150, subBuf[7],
subBuf[8], subBuf[9], qStart, subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty),
2 =>
string.Format(Localization.Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_MCN_9_frame_10_CRC_11_12_13_R_W_14,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
DecodeMcn(subBuf), subBuf[9], subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty),
3 =>
string.Format(Localization.Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_mode_8_ISRC_9_frame_10_CRC_11_12_13_R_W_14,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
adr,
DecodeIsrc(subBuf), subBuf[9], subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty),
_ =>
string.Format(
Localization.
Subchannel_PrettifyQ_0_1_2_LBA_3_4_area_5_6_7_Q_8_9_10_11_12_13_14_15_16_17_CRC_18_19_20_R_W_21,
minute, second, frame, lba, area,
corruptedPause ? Localization.Subchannel_PrettifyQ_corrupted_pause :
pause ? Localization.Subchannel_PrettifyQ_pause :
Localization.Subchannel_PrettifyQ_not_pause, controlInfo, copy,
subBuf[0],
subBuf[1], subBuf[2], subBuf[3], subBuf[4], subBuf[5], subBuf[6], subBuf[7],
subBuf[8], subBuf[9], subBuf[10], subBuf[11],
crcOk
? Localization.Subchannel_PrettifyQ_OK
: Localization.Subchannel_PrettifyQ_BAD,
rwEmpty
? Localization.Subchannel_PrettifyQ_empty
: Localization.Subchannel_PrettifyQ_not_empty)
};
}
public static string DecodeIsrc(byte[] q) =>
$"{_isrcTable[q[1] / 4]}{_isrcTable[(q[1] & 3) * 16 + q[2] / 16]}{_isrcTable[(q[2] & 0xF) * 4 + q[3] / 64]}{_isrcTable[q[3] & 0x3F]}{_isrcTable[q[4] / 4]}{q[5]:X2}{q[6]:X2}{q[7]:X2}{q[8] / 16:X1}";
public static string DecodeMcn(byte[] q) => $"{q[1]:X2}{q[2]:X2}{q[3]:X2}{q[4]:X2}{q[5]:X2}{q[6]:X2}{q[7] >> 4:X}";
public static byte GetIsrcCode(char c) => c switch
{
'0' => 0x00,
'1' => 0x01,
'2' => 0x02,
'3' => 0x03,
'4' => 0x04,
'5' => 0x05,
'6' => 0x06,
'7' => 0x07,
'8' => 0x08,
'9' => 0x09,
'A' => 0x11,
'B' => 0x12,
'C' => 0x13,
'D' => 0x14,
'E' => 0x15,
'F' => 0x16,
'G' => 0x17,
'H' => 0x18,
'I' => 0x19,
'J' => 0x1A,
'K' => 0x1B,
'L' => 0x1C,
'M' => 0x1D,
'N' => 0x1E,
'O' => 0x1F,
'P' => 0x20,
'Q' => 0x21,
'R' => 0x22,
'S' => 0x23,
'T' => 0x24,
'U' => 0x25,
'V' => 0x26,
'W' => 0x27,
'X' => 0x28,
'Y' => 0x29,
'Z' => 0x2A,
_ => 0x00
};
public static byte[] Generate(int sector, uint trackSequence, int pregap, int trackStart, byte flags, byte index)
{
bool isPregap = sector < 0 || sector <= trackStart + pregap;
if(index == 0)
index = (byte)(isPregap ? 0 : 1);
var sub = new byte[96];
// P
if(isPregap)
{
sub[0] = 0xFF;
sub[1] = 0xFF;
sub[2] = 0xFF;
sub[3] = 0xFF;
sub[4] = 0xFF;
sub[5] = 0xFF;
sub[6] = 0xFF;
sub[7] = 0xFF;
sub[8] = 0xFF;
sub[9] = 0xFF;
sub[10] = 0xFF;
sub[11] = 0xFF;
}
// Q
var q = new byte[12];
q[0] = (byte)((flags << 4) + 1);
q[1] = (byte)trackSequence;
q[2] = index;
int relative;
if(isPregap)
relative = pregap + trackStart - sector;
else
relative = sector - trackStart;
sector += 150;
int min = relative / 60 / 75;
int sec = relative / 75 - min * 60;
int frame = relative - min * 60 * 75 - sec * 75;
int amin = sector / 60 / 75;
int asec = sector / 75 - amin * 60;
int aframe = sector - amin * 60 * 75 - asec * 75;
q[3] = (byte)min;
q[4] = (byte)sec;
q[5] = (byte)frame;
q[7] = (byte)amin;
q[8] = (byte)asec;
q[9] = (byte)aframe;
q[1] = (byte)((q[1] / 10 << 4) + q[1] % 10);
q[2] = (byte)((q[2] / 10 << 4) + q[2] % 10);
q[3] = (byte)((q[3] / 10 << 4) + q[3] % 10);
q[4] = (byte)((q[4] / 10 << 4) + q[4] % 10);
q[5] = (byte)((q[5] / 10 << 4) + q[5] % 10);
q[6] = (byte)((q[6] / 10 << 4) + q[6] % 10);
q[7] = (byte)((q[7] / 10 << 4) + q[7] % 10);
q[8] = (byte)((q[8] / 10 << 4) + q[8] % 10);
q[9] = (byte)((q[9] / 10 << 4) + q[9] % 10);
CRC16CcittContext.Data(q, 10, out byte[] qCrc);
q[10] = qCrc[0];
q[11] = qCrc[1];
Array.Copy(q, 0, sub, 12, 12);
return Interleave(sub);
}
}
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