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SubChannelDecoder/Program.cs

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C#
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Code clean up.
2015-09-22 05:27:10 +01:00
//
// Program.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright (c) 2015 © Claunia.com
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
using System;
Added initial version.
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using System.IO;
namespace SubChannelDecoder
{
class MainClass
{
const int QQuadraphonic = 0x80;
const int QData = 0x40;
const int QCopyPermitted = 0x20;
const int QPreEmphasis = 0x10;
Correct CD+G packetization.
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const int QMode0 = 0x00;
Added initial version.
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const int QMode1 = 0x01;
const int QMode2 = 0x02;
const int QMode3 = 0x03;
Added Q Mode 4 (CD-Video).
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const int QMode4 = 0x04;
Added initial version.
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const int QMode5 = 0x05;
static readonly char[] ISRCTable =
Code clean up.
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{
Code cleanup
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'0', '1', '2', '3', '4',
'5', '6', '7', '8', '9',
' ', ' ', ' ', ' ', ' ',
' ', ' ', 'A', 'B', 'C',
'D', 'E', 'F', 'G', 'H',
'I', 'J', 'K', 'L', 'M',
'N', 'O', 'P', 'Q', 'R',
'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z'
};
Added initial version.
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static readonly char[] BCDTable =
Code cleanup
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{
Added initial version.
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'0', '1', '2', '3',
'4', '5', '6', '7',
'8', '9', 'A', 'B',
'C', 'D', 'E', 'F'
};
public static void Main(string[] args)
{
Added CD+G support.
2015-10-02 01:14:19 +01:00
Console.WriteLine("SubChannelDecoder 0.04");
Added initial version.
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Console.WriteLine("© 2015 Natalia Portillo");
Console.WriteLine();
if (args.Length != 2 && args.Length != 1)
{
Usage();
return;
}
try
{
if(!File.Exists(args[0]))
{
Console.WriteLine("Specified file does not exist");
Usage();
return;
}
FileStream fs = new FileStream(args[0], FileMode.Open, FileAccess.Read);
if(args.Length == 1)
{
Added code to detect, interleave and deinterleave subchannels.
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bool? interleaved = null;
Added initial version.
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int sectors = (int)(fs.Length / 96);
for(int sector = 0; sector < sectors; sector++)
{
byte[] sectorBytes = new byte[96];
fs.Seek(sector*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
Added code to detect, interleave and deinterleave subchannels.
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if(interleaved == null)
{
if(CheckQCRC(DeinterleaveSubchannel(sectorBytes).q))
{
Console.WriteLine("Subchannel is interleaved.");
interleaved = true;
}
else if(CheckQCRC(UnpackSubchannel(sectorBytes).q))
{
Console.WriteLine("Subchannel is not interleaved.");
Corrected typo.
2015-10-02 04:22:08 +01:00
interleaved = false;
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
}
}
Subchannel sub = UnpackSubchannel(sectorBytes, interleaved);
Added initial version.
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Console.WriteLine("Sector {0}", sector);
Code cleanup
2015-10-02 06:03:34 +01:00
Added initial version.
2015-09-22 05:25:18 +01:00
Console.WriteLine("\tP: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.p[0], sub.p[1], sub.p[2], sub.p[3], sub.p[4], sub.p[5],
sub.p[6], sub.p[7], sub.p[8], sub.p[9], sub.p[10], sub.p[11]);
Console.WriteLine("\tQ: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.q[0], sub.q[1], sub.q[2], sub.q[3], sub.q[4], sub.q[5],
sub.q[6], sub.q[7], sub.q[8], sub.q[9], sub.q[10], sub.q[11]);
Console.WriteLine("\tR: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.r[0], sub.r[1], sub.r[2], sub.r[3], sub.r[4], sub.r[5],
sub.r[6], sub.r[7], sub.r[8], sub.r[9], sub.r[10], sub.r[11]);
Console.WriteLine("\tS: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.s[0], sub.s[1], sub.s[2], sub.s[3], sub.s[4], sub.s[5],
sub.s[6], sub.s[7], sub.s[8], sub.s[9], sub.s[10], sub.s[11]);
Console.WriteLine("\tT: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.t[0], sub.t[1], sub.t[2], sub.t[3], sub.t[4], sub.t[5],
sub.t[6], sub.t[7], sub.t[8], sub.t[9], sub.t[10], sub.t[11]);
Console.WriteLine("\tU: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.u[0], sub.u[1], sub.u[2], sub.u[3], sub.u[4], sub.u[5],
sub.u[6], sub.u[7], sub.u[8], sub.u[9], sub.u[10], sub.u[11]);
Console.WriteLine("\tV: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.v[0], sub.v[1], sub.v[2], sub.v[3], sub.v[4], sub.v[5],
sub.v[6], sub.v[7], sub.v[8], sub.v[9], sub.v[10], sub.v[11]);
Console.WriteLine("\tW: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.w[0], sub.w[1], sub.w[2], sub.w[3], sub.w[4], sub.w[5],
sub.w[6], sub.w[7], sub.w[8], sub.w[9], sub.w[10], sub.w[11]);
PrintQSubchannel(sub.q);
Added CD+G support.
2015-10-02 01:14:19 +01:00
Correct CD+G packetization.
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bool StandardRW = false;
bool correctlyPacketized = false;
MemoryStream ms = new MemoryStream();
Added CD+G support.
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if(interleaved == true || interleaved == null)
{
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G)
Added CD+G support.
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{
Console.WriteLine("CD+G detected.");
Correct CD+G packetization.
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StandardRW = true;
}
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG)
{
Console.WriteLine("CD+EG detected.");
StandardRW = true;
}
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
if(StandardRW)
{
if((fs.Length / 96) >= (sector+2))
{
try
{
ms.Write(sectorBytes, 0, 96);
fs.Seek((sector+1)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(sectorBytes, 0, 96);
fs.Seek((sector+2)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(sectorBytes, 0, 96);
correctlyPacketized = true;
}
catch
{
correctlyPacketized = false;
}
}
Added CD+G support.
2015-10-02 01:14:19 +01:00
}
}
else
{
byte[] interBytes = InterleaveSubchannel(sub);
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G)
Added CD+G support.
2015-10-02 01:14:19 +01:00
{
Console.WriteLine("CD+G detected.");
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
StandardRW = true;
}
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG)
{
Console.WriteLine("CD+EG detected.");
StandardRW = true;
}
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
if(StandardRW)
{
if((fs.Length / 96) >= (sector+2))
{
try
{
ms.Write(interBytes, 0, 96);
fs.Seek((sector+1)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(InterleaveSubchannel(UnpackSubchannel(sectorBytes)), 0, 96);
fs.Seek((sector+2)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(InterleaveSubchannel(UnpackSubchannel(sectorBytes)), 0, 96);
correctlyPacketized = true;
}
catch
{
correctlyPacketized = false;
}
}
Added CD+G support.
2015-10-02 01:14:19 +01:00
}
}
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
if(correctlyPacketized)
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
CD_RW_Subchannel.Print_CD_RW_Packets(ms.ToArray());
Added initial version.
2015-09-22 05:25:18 +01:00
}
}
else
{
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
bool? interleaved = null;
Added initial version.
2015-09-22 05:25:18 +01:00
int sector;
if(!int.TryParse(args[1], out sector))
{
Console.WriteLine("Specified sector is not a number");
Usage();
return;
}
if((sector*96) >= fs.Length)
{
Console.WriteLine("Specified sector is bigger than specified file");
Usage();
return;
}
byte[] sectorBytes = new byte[96];
fs.Seek(sector*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
if(interleaved == null)
{
if(CheckQCRC(DeinterleaveSubchannel(sectorBytes).q))
{
Console.WriteLine("Subchannel is interleaved.");
interleaved = true;
}
else if(CheckQCRC(UnpackSubchannel(sectorBytes).q))
{
Console.WriteLine("Subchannel is not interleaved.");
Corrected typo.
2015-10-02 04:22:08 +01:00
interleaved = false;
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
}
}
Subchannel sub = UnpackSubchannel(sectorBytes, interleaved);
Added initial version.
2015-09-22 05:25:18 +01:00
Console.WriteLine("Sector {0}", sector);
Console.WriteLine("\tP: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.p[0], sub.p[1], sub.p[2], sub.p[3], sub.p[4], sub.p[5],
sub.p[6], sub.p[7], sub.p[8], sub.p[9], sub.p[10], sub.p[11]);
Console.WriteLine("\tQ: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.q[0], sub.q[1], sub.q[2], sub.q[3], sub.q[4], sub.q[5],
sub.q[6], sub.q[7], sub.q[8], sub.q[9], sub.q[10], sub.q[11]);
Console.WriteLine("\tR: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.r[0], sub.r[1], sub.r[2], sub.r[3], sub.r[4], sub.r[5],
sub.r[6], sub.r[7], sub.r[8], sub.r[9], sub.r[10], sub.r[11]);
Console.WriteLine("\tS: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.s[0], sub.s[1], sub.s[2], sub.s[3], sub.s[4], sub.s[5],
sub.s[6], sub.s[7], sub.s[8], sub.s[9], sub.s[10], sub.s[11]);
Console.WriteLine("\tT: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.t[0], sub.t[1], sub.t[2], sub.t[3], sub.t[4], sub.t[5],
sub.t[6], sub.t[7], sub.t[8], sub.t[9], sub.t[10], sub.t[11]);
Console.WriteLine("\tU: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.u[0], sub.u[1], sub.u[2], sub.u[3], sub.u[4], sub.u[5],
sub.u[6], sub.u[7], sub.u[8], sub.u[9], sub.u[10], sub.u[11]);
Console.WriteLine("\tV: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.v[0], sub.v[1], sub.v[2], sub.v[3], sub.v[4], sub.v[5],
sub.v[6], sub.v[7], sub.v[8], sub.v[9], sub.v[10], sub.v[11]);
Console.WriteLine("\tW: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}{10:X2}{11:X2}",
sub.w[0], sub.w[1], sub.w[2], sub.w[3], sub.w[4], sub.w[5],
sub.w[6], sub.w[7], sub.w[8], sub.w[9], sub.w[10], sub.w[11]);
PrintQSubchannel(sub.q);
Added CD+G support.
2015-10-02 01:14:19 +01:00
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
bool StandardRW = false;
bool correctlyPacketized = false;
MemoryStream ms = new MemoryStream();
Added CD+G support.
2015-10-02 01:14:19 +01:00
if(interleaved == true || interleaved == null)
{
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G)
Added CD+G support.
2015-10-02 01:14:19 +01:00
{
Console.WriteLine("CD+G detected.");
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
StandardRW = true;
}
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG)
{
Console.WriteLine("CD+EG detected.");
StandardRW = true;
}
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((sectorBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(sectorBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(sectorBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(sectorBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
if(StandardRW)
{
if((fs.Length / 96) >= (sector+2))
{
try
{
ms.Write(sectorBytes, 0, 96);
fs.Seek((sector+1)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(sectorBytes, 0, 96);
fs.Seek((sector+2)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(sectorBytes, 0, 96);
correctlyPacketized = true;
}
catch
{
correctlyPacketized = false;
}
}
Added CD+G support.
2015-10-02 01:14:19 +01:00
}
}
else
{
byte[] interBytes = InterleaveSubchannel(sub);
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_G)
Added CD+G support.
2015-10-02 01:14:19 +01:00
{
Console.WriteLine("CD+G detected.");
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
StandardRW = true;
}
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_EG)
{
Console.WriteLine("CD+EG detected.");
StandardRW = true;
}
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_Line_Graphics)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_MIDI)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
if((interBytes[0] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(interBytes[24] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(interBytes[48] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User ||
(interBytes[72] & 0x3F) == (int)CD_RW_Subchannel.CD_RW_Commands.CD_User)
{
Console.WriteLine("CD with Line Graphics detected.");
StandardRW = true;
}
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
if(StandardRW)
{
if((fs.Length / 96) >= (sector+2))
{
try
{
ms.Write(interBytes, 0, 96);
fs.Seek((sector+1)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(InterleaveSubchannel(UnpackSubchannel(sectorBytes)), 0, 96);
fs.Seek((sector+2)*96, SeekOrigin.Begin);
fs.Read(sectorBytes, 0, 96);
ms.Write(InterleaveSubchannel(UnpackSubchannel(sectorBytes)), 0, 96);
correctlyPacketized = true;
}
catch
{
correctlyPacketized = false;
}
}
Added CD+G support.
2015-10-02 01:14:19 +01:00
}
}
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
if(correctlyPacketized)
Added support for CD+EG, CD+MIDI, CD Line Graphics and CD with user data following red book.
2015-10-02 03:42:00 +01:00
CD_RW_Subchannel.Print_CD_RW_Packets(ms.ToArray());
Added initial version.
2015-09-22 05:25:18 +01:00
}
}
catch
{
Console.WriteLine("Some error happened while reading file");
throw;
}
}
public static void PrintQSubchannel(byte[] q)
{
if ((q[0] & 0x0F) == QData)
{
Console.WriteLine("Sector is part of a data track");
if ((q[0] & QPreEmphasis) == QPreEmphasis)
Console.WriteLine("Track has been recorded incrementally");
Added CD+G support.
2015-10-02 01:14:19 +01:00
if ((q[0] & QQuadraphonic) == QQuadraphonic)
Console.WriteLine("Track is for broadcsting use");
Added initial version.
2015-09-22 05:25:18 +01:00
}
else
{
if ((q[0] & QPreEmphasis) == QPreEmphasis)
Console.WriteLine("Track has pre-emphasis");
if ((q[0] & QQuadraphonic) == QQuadraphonic)
Console.WriteLine("Track contains quadraphonic audio");
}
if ((q[0] & QCopyPermitted) == QCopyPermitted)
Console.WriteLine("Track may be copied");
Correct CD+G packetization.
2015-10-02 02:44:22 +01:00
else if ((q[0] & 0x0F) == QMode0)
{
Console.WriteLine("Q Mode 0: Empty");
}
Added CRC16 calculation. Corrected a bug in Q mode detection. Corrected ISRC character table.
2015-09-22 07:22:14 +01:00
if ((q[0] & 0x0F) == QMode1)
Added initial version.
2015-09-22 05:25:18 +01:00
{
int hour = 0;
int phour = 0;
if (q[6] != 0)
{
Console.WriteLine("DDCD");
phour = q[6] & 0x0F;
hour = (q[6] & 0xF0) >> 4;
}
Console.WriteLine("Q Mode 1: Address Marks / TOC");
if (q[1] == 0x00)
{
Console.WriteLine("\tLead-in");
if (hour != 0)
Console.WriteLine("\tRelative Address {3:X1}:{0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5], hour);
else
Console.WriteLine("\tRelative Address {0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5]);
switch (q[2])
{
case 0xA0:
{
Console.WriteLine("\tFirst data track is track {0:X2}", q[7]);
Console.WriteLine("\tDisc type: {0}", q[8]);
break;
}
case 0xA1:
{
Console.WriteLine("\tLast data track is track {0:X2}", q[7]);
break;
}
case 0xA2:
{
if (phour != 0)
Console.WriteLine("\tLead-Out starts at Address {3:X1}:{0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9], phour);
else
Console.WriteLine("\tLead-Out starts at Address {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
break;
}
case 0xF0:
{
Console.WriteLine("Book type: {0}", q[7]);
Console.WriteLine("Material type: {0}", q[8]);
Console.WriteLine("Moment of inertia: {0}", q[9]);
break;
}
default:
{
Console.WriteLine("\tTrack {0:X}", q[2]);
if (phour != 0)
Console.WriteLine("\tTrack Starting Address {3:X1}:{0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9], phour);
else
Console.WriteLine("\tTrack Starting Address {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
break;
}
}
}
else
{
if (q[1] == 0xAA)
Console.WriteLine("\tLead-out");
else
Console.WriteLine("\tTrack {0:X}", q[1]);
Console.WriteLine("\tIndex {0:X}", q[2]);
if (hour != 0)
Console.WriteLine("\tRelative Address {3:X1}:{0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5], hour);
else
Console.WriteLine("\tRelative Address {0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5]);
if (phour != 0)
Console.WriteLine("\tAbsolute Address {3:X1}:{0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9], phour);
else
Console.WriteLine("\tAbsolute Address {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
}
}
else if ((q[0] & 0x0F) == QMode2)
{
Console.WriteLine("Q Mode 2: Media Catalog Number");
Console.WriteLine("Catalog number: {0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X1}", q[1], q[2], q[3], q[4], q[5], q[6], (q[7] & 0xF0) >> 4);
if ((q[7] & 0xF) != 0x00 || q[6] != 0x00)
Console.WriteLine("Zero = 0x{0:X}{1:X2}", (q[7] & 0xF), q[8]);
Console.WriteLine("\tAbsolute Frame {0:X2}", q[9]);
}
else if ((q[0] & 0x0F) == QMode3)
{
Console.WriteLine("Q Mode 3: ISRC");
char[] isrc = new char[12];
isrc[0] = ISRCTable[(q[1] & 0xFC) >> 2];
isrc[1] = ISRCTable[((q[1] & 0x03) << 4) + ((q[2] & 0xF0) >> 4)];
isrc[2] = ISRCTable[((q[2] & 0x0F) << 2) + ((q[3] & 0xC0) >> 6)];
isrc[3] = ISRCTable[(q[3] & 0x3F)];
isrc[4] = ISRCTable[(q[4] & 0xFC) >> 2];
isrc[5] = BCDTable[(q[5] & 0xF0) >> 4];
isrc[6] = BCDTable[(q[5] & 0xF)];
isrc[7] = BCDTable[(q[6] & 0xF0) >> 4];
isrc[8] = BCDTable[(q[6] & 0xF)];
isrc[9] = BCDTable[(q[7] & 0xF0) >> 4];
isrc[10] = BCDTable[(q[7] & 0xF)];
isrc[11] = BCDTable[(q[8] & 0xF0) >> 4];
Console.WriteLine("ISRC: {0}", new string(isrc));
Console.WriteLine("\tAbsolute Frame {0:X2}", q[9]);
}
Added Q Mode 4 (CD-Video).
2015-10-02 01:23:47 +01:00
else if ((q[0] & 0x0F) == QMode4)
{
Console.WriteLine("Q Mode 1: CD-Video");
if (q[1] == 0x00)
{
Console.WriteLine("\tLead-in");
Console.WriteLine("\tRelative Address {0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5]);
switch (q[2])
{
case 0xA0:
{
Console.WriteLine("\tFirst video track is track {0:X2}", q[7]);
switch (q[9])
{
case 10:
Console.WriteLine("\tDisc type: {0}", "NTSC video single with stereo sound");
break;
case 11:
Console.WriteLine("\tDisc type: {0}", "NTSC video single with bilingual sound");
break;
case 12:
Console.WriteLine("\tDisc type: {0}", "NTSC LV disc with stereo sound");
break;
case 13:
Console.WriteLine("\tDisc type: {0}", "NTSC LV disc with bilingual sound");
break;
case 20:
Console.WriteLine("\tDisc type: {0}", "PAL video single with stereo sound");
break;
case 21:
Console.WriteLine("\tDisc type: {0}", "PAL video single with bilingual sound");
break;
case 22:
Console.WriteLine("\tDisc type: {0}", "PAL LV disc with stereo sound");
break;
case 23:
Console.WriteLine("\tDisc type: {0}", "PAL LV disc with bilingual sound");
break;
default:
Console.WriteLine("\tUnknown disc type: {0}", q[9]);
break;
}
break;
}
case 0xA1:
{
Console.WriteLine("\tLast video track is track {0:X2}", q[7]);
break;
}
case 0xA2:
{
Console.WriteLine("\tLead-Out starts at Address {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
break;
}
default:
{
Console.WriteLine("\tVideo track {0:X}", q[2]);
Console.WriteLine("\tTrack Starting Address {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
break;
}
}
}
else
{
if (q[1] == 0xAA)
Console.WriteLine("\tLead-out");
else
Console.WriteLine("\tTrack {0:X}", q[1]);
Console.WriteLine("\tIndex {0:X}", q[2]);
Console.WriteLine("\tRelative Address {0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5]);
Console.WriteLine("\tAbsolute Video Address {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
}
}
Added initial version.
2015-09-22 05:25:18 +01:00
else if ((q[0] & 0x0F) == QMode5)
{
Console.WriteLine("Q Mode 5: Recordable information");
int hour = 0;
int phour = 0;
if (q[6] != 0)
{
Console.WriteLine("DDCD");
phour = q[6] & 0x0F;
hour = (q[6] & 0xF0) >> 4;
}
switch (q[2])
{
case 0xB0:
{
if (hour != 0)
Console.WriteLine("\tStart of next possible program in the recordable area of the disc {3:X1}:{0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5], hour);
else
Console.WriteLine("\tStart of next possible program in the recordable area of the disc {0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5]);
if (phour != 0)
Console.WriteLine("\tMaximum start of outermost Lead-out in the recordable area of the disc {3:X1}:{0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9], phour);
else
Console.WriteLine("\tMaximum start of outermost Lead-out in the recordable area of the disc {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
break;
}
case 0xB1:
{
Console.WriteLine("{0:X2} skip interval pointers", q[7]);
Console.WriteLine("{0:X2} skip track pointers", q[8]);
break;
}
case 0xB2:
case 0xB3:
case 0xB4:
{
Console.WriteLine("Skip track {0:X2}", q[3]);
Console.WriteLine("Skip track {0:X2}", q[4]);
Console.WriteLine("Skip track {0:X2}", q[5]);
Console.WriteLine("Skip track {0:X2}", q[6]);
Console.WriteLine("Skip track {0:X2}", q[7]);
Console.WriteLine("Skip track {0:X2}", q[8]);
Console.WriteLine("Skip track {0:X2}", q[9]);
break;
}
case 0xC0:
{
Console.WriteLine("Optimum recording power: 0x{0:X2}", q[3]);
if (phour != 0)
Console.WriteLine("Start time of the first Lead-in area in the disc: {3:X2}:{0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9], phour);
else
Console.WriteLine("Start time of the first Lead-in area in the disc: {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
break;
}
case 0xC1:
{
Console.WriteLine("Copy of information of A1 from ATIP found");
Console.WriteLine("Min = {0}", q[3]);
Console.WriteLine("Sec = {0}", q[4]);
Console.WriteLine("Frame = {0}", q[5]);
Console.WriteLine("Zero = {0}", q[6]);
Console.WriteLine("PMIN = {0}", q[7]);
Console.WriteLine("PSEC = {0}", q[8]);
Console.WriteLine("PFRAME = {0}", q[9]);
break;
}
case 0xCF:
{
if (phour != 0)
Console.WriteLine("Start position of outer part lead-in area: {3:X2}:{0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9], phour);
else
Console.WriteLine("Start position of outer part lead-in area: {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
if (hour != 0)
Console.WriteLine("Stop position of inner part lead-out area: {3:X2}:{0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5], hour);
else
Console.WriteLine("Stop position of inner part lead-out area: {0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5]);
break;
}
default:
{
Console.WriteLine("Start time for interval that should be skipped: {0:X2}:{1:X2}:{2:X2}", q[7], q[8], q[9]);
Console.WriteLine("Ending time for interval that should be skipped: {0:X2}:{1:X2}:{2:X2}", q[3], q[4], q[5]);
break;
}
}
}
else
Console.WriteLine("Unknown Q Mode {0}", (q[0] & 0x0F));
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
if (CheckQCRC(q))
Console.WriteLine("Q CRC = 0x{0:X2}{1:X2} (OK)", q[10], q[11]);
else
Console.WriteLine("Q CRC = 0x{0:X2}{1:X2} (BAD)", q[10], q[11]);
}
public static bool CheckQCRC(byte[] q)
{
Added CRC16 calculation. Corrected a bug in Q mode detection. Corrected ISRC character table.
2015-09-22 07:22:14 +01:00
byte[] QCalculatedCrc;
CRC16CCITTContext.Data(q, 10, out QCalculatedCrc);
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
return q[10] == QCalculatedCrc[0] && q[11] == QCalculatedCrc[1];
Added initial version.
2015-09-22 05:25:18 +01:00
}
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
public static Subchannel UnpackSubchannel(byte[] subchannel, bool? interleaved)
{
if (interleaved == null || interleaved == true)
return DeinterleaveSubchannel(subchannel);
return UnpackSubchannel(subchannel);
}
Added initial version.
2015-09-22 05:25:18 +01:00
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
public static Subchannel UnpackSubchannel(byte[] subchannel)
Added initial version.
2015-09-22 05:25:18 +01:00
{
Subchannel sub = new Subchannel();
Array.Copy(subchannel, 0, sub.p, 0, 12);
Array.Copy(subchannel, 12, sub.q, 0, 12);
Array.Copy(subchannel, 24, sub.r, 0, 12);
Array.Copy(subchannel, 36, sub.s, 0, 12);
Array.Copy(subchannel, 48, sub.t, 0, 12);
Array.Copy(subchannel, 60, sub.u, 0, 12);
Array.Copy(subchannel, 72, sub.v, 0, 12);
Array.Copy(subchannel, 84, sub.w, 0, 12);
return sub;
}
Added code to detect, interleave and deinterleave subchannels.
2015-10-01 23:29:47 +01:00
public static Subchannel DeinterleaveSubchannel(byte[] subchannel)
{
Subchannel sub = new Subchannel();
for (int i = 0; i < 12; i++)
{
for (int j = 0; j < 8; j++)
{
sub.p[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x80), j);
sub.q[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x40), j-1);
sub.r[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x20), j-2);
sub.s[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x10), j-3);
sub.t[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x8), j-4);
sub.u[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x4), j-5);
sub.v[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x2), j-6);
sub.w[i] += ShiftRight((byte)(subchannel[j + i * 8] & 0x1), j-7);
}
}
return sub;
}
public static byte[] InterleaveSubchannel(Subchannel sub)
{
byte[] subchannel = new byte[96];
for (int i = 0; i < 12; i++)
{
for (int j = 0; j < 8; j++)
{
subchannel[j + i * 8] += ShiftLeft((byte)(sub.p[i] & (0x80 >> j)), j);
subchannel[j + i * 8] += ShiftLeft((byte)(sub.q[i] & (0x80 >> j)), j-1);
subchannel[j + i * 8] += ShiftLeft((byte)(sub.r[i] & (0x80 >> j)), j-2);
subchannel[j + i * 8] += ShiftLeft((byte)(sub.s[i] & (0x80 >> j)), j-3);
subchannel[j + i * 8] += ShiftLeft((byte)(sub.t[i] & (0x80 >> j)), j-4);
subchannel[j + i * 8] += ShiftLeft((byte)(sub.u[i] & (0x80 >> j)), j-5);
subchannel[j + i * 8] += ShiftLeft((byte)(sub.v[i] & (0x80 >> j)), j-6);
subchannel[j + i * 8] += ShiftLeft((byte)(sub.w[i] & (0x80 >> j)), j-7);
}
}
return subchannel;
}
public static byte ShiftRight(byte value, int shifted)
{
return shifted < 0 ? (byte)(value << Math.Abs(shifted)) : (byte)(value >> shifted);
}
public static byte ShiftLeft(byte value, int shifted)
{
return shifted < 0 ? (byte)(value >> Math.Abs(shifted)) : (byte)(value << shifted);
}
Added initial version.
2015-09-22 05:25:18 +01:00
public static void Usage()
{
Console.WriteLine();
Console.WriteLine("SubChannelDecoder <subchannel.sub> [sector]");
Console.WriteLine();
Console.WriteLine("\t\tsubchannel.sub: Subchannel file");
Console.WriteLine("\t\tsector: Counting sector 0 as start of file, subchannel sector to decode");
}
}
}
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