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02d6222ae9603d9462ea5ae2f64ff8bdfe4c5ecd
Aaru/CD/Subchannel.cs

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Add missing file headers.
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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/>.
//
// ----------------------------------------------------------------------------
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// Copyright © 2011-2022 Natalia Portillo
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// ****************************************************************************/
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namespace Aaru.Decoders.CD;
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using System;
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using Aaru.Checksums;
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public static class Subchannel
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{
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static readonly string[] _isrcTable =
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{
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// 0x00
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "", "", "", "", "", "",
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// 0x10
"", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",
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// 0x20
"P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "", "", "", "", "",
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// 0x30
"", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ""
};
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public static void BinaryToBcdQ(byte[] q)
{
if((q[0] & 0xF) == 1 ||
(q[0] & 0xF) == 5)
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{
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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);
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}
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q[9] = (byte)(((q[9] / 10) << 4) + q[9] % 10);
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}
public static void BcdToBinaryQ(byte[] q)
{
if((q[0] & 0xF) == 1 ||
(q[0] & 0xF) == 5)
{
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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));
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}
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q[9] = (byte)(q[9] / 16 * 10 + (q[9] & 0x0F));
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}
public static byte[] ConvertQToRaw(byte[] subchannel)
{
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var pos = 0;
var subBuf = new byte[subchannel.Length * 6];
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for(var i = 0; i < subchannel.Length; i += 16)
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{
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// 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;
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}
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// 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;
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}
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return Interleave(subBuf);
}
public static byte[] Interleave(byte[] subchannel)
{
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var subBuf = new byte[subchannel.Length];
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var outPos = 0;
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for(var inPos = 0; inPos < subchannel.Length; inPos += 96)
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{
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for(var i = 0; i < 12; i++)
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{
// P
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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);
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// Q
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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;
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}
}
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return subBuf;
}
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public static byte[] Deinterleave(byte[] subchannel)
{
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var subBuf = new byte[subchannel.Length];
var inPos = 0;
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for(var outPos = 0; outPos < subchannel.Length; outPos += 96)
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{
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for(var i = 0; i < 12; i++)
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{
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// 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);
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// 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;
}
Move common subchannel code to decoders.
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}
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return subBuf;
}
Move common subchannel code to decoders.
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public static string PrettifyQ(byte[] subBuf, bool bcd, long lba, bool corruptedPause, bool pause, bool rwEmpty)
{
CRC16CCITTContext.Data(subBuf, 10, out byte[] crc);
Move common subchannel code to decoders.
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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;
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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string controlInfo = ((control & 0xC) / 4) switch
General cleanup and refactor.
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{
0 => $"stereo audio {((control & 0x01) == 1 ? "with" : "without")} pre-emphasis",
1 => $"{((control & 0x01) == 1 ? "incremental" : "uninterrupted")} data",
2 => $"quadraphonic audio {((control & 0x01) == 1 ? "with" : "without")} pre-emphasis",
_ => $"reserved control value {control & 0x01}"
};
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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string copy = (control & 0x02) > 0 ? "copy permitted" : "copy prohibited";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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if(bcd)
BcdToBinaryQ(subBuf);
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
General cleanup and refactor.
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int qPos = subBuf[3] * 60 * 75 + subBuf[4] * 75 + subBuf[5] - 150;
Move to file scoped namespaces.
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byte pmin = subBuf[7];
byte psec = subBuf[8];
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
General cleanup and refactor.
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int qStart = subBuf[7] * 60 * 75 + subBuf[8] * 75 + subBuf[9] - 150;
int nextPos = subBuf[3] * 60 * 75 + subBuf[4] * 75 + subBuf[5] - 150;
Move to file scoped namespaces.
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byte zero = subBuf[6];
General cleanup and refactor.
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int maxOut = subBuf[7] * 60 * 75 + subBuf[8] * 75 + subBuf[9] - 150;
Move to file scoped namespaces.
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bool final = subBuf[3] == 0xFF && subBuf[4] == 0xFF && subBuf[5] == 0xFF;
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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BinaryToBcdQ(subBuf);
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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if(lba < 0)
{
area = "Lead-In";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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switch(adr)
Move common subchannel code to decoders.
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{
Move to file scoped namespaces.
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case 1 when subBuf[2] < 0xA0:
Convert if to switch statement.
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return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} position: {subBuf[3]
:X2}:{subBuf[4]:X2}:{subBuf[5]:X2} (LBA {qPos}), track {subBuf[2]
:X} starts at {subBuf[7]:X2}:{subBuf[8]:X2}:{subBuf[9]:X2} (LBA {qStart
}), Q CRC 0x{subBuf[10]:X2}{subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}";
Move to file scoped namespaces.
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case 1 when subBuf[2] == 0xA0:
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
{
Move to file scoped namespaces.
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string format = subBuf[8] switch
General cleanup and refactor.
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{
0x00 => "CD-DA / CD-ROM",
0x10 => "CD-i",
0x20 => "CD-ROM XA",
_ => $"unknown {subBuf[0]:X2}"
};
Move common subchannel code to decoders.
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Convert if to switch statement.
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return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} position: {subBuf[3]
:X2}:{subBuf[4]:X2}:{subBuf[5]:X2} (LBA {qPos}), track {subBuf[2]
:X} is first program area track in {format} format, Q CRC 0x{subBuf[10]:X2}{
subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}";
Move common subchannel code to decoders.
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}
Move to file scoped namespaces.
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case 1 when subBuf[2] == 0xA1:
Convert if to switch statement.
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return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} position: {subBuf[3]
:X2}:{subBuf[4]:X2}:{subBuf[5]:X2} (LBA {qPos}), track {subBuf[2]
:X} is last program area track, Q CRC 0x{subBuf[10]:X2}{subBuf[11]:X2} ({
(crcOk ? "OK" : "BAD")}), R-W {(rwEmpty ? "empty" : "not empty")}";
Move to file scoped namespaces.
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case 1:
Convert if to switch statement.
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return subBuf[2] == 0xA2 ? $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {
(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} position: {subBuf[3]:X2}:{
subBuf[4]:X2}:{subBuf[5]:X2} (LBA {qPos}), track {subBuf[2]:X} starts at {subBuf[7]
:X2}{subBuf[8]:X2}{subBuf[9]:X2} (LBA {qStart}), Q CRC 0x{subBuf[10]:X2}{subBuf[11]
:X2} ({(crcOk ? "OK" : "BAD")}), R-W {(rwEmpty ? "empty" : "not empty")}" : $"{
minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q: {subBuf[0]
:X2} {subBuf[1]:X2} {subBuf[2]:X2} {subBuf[3]:X2} {
subBuf[4]:X2} {subBuf[5]:X2} {subBuf[6]:X2} {subBuf[7]
:X2} {subBuf[8]:X2} {subBuf[9]:X2} CRC 0x{
subBuf[10]:X2}{subBuf[11]:X2} ({
(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}";
Move to file scoped namespaces.
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case 2:
Convert if to switch statement.
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return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} MCN: {DecodeMcn(subBuf)
} frame {subBuf[9]:X2} CRC 0x{subBuf[10]:X2}{subBuf[11]:X2} ({
(crcOk ? "OK" : "BAD")}), R-W {(rwEmpty ? "empty" : "not empty")}";
Move to file scoped namespaces.
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}
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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if(adr != 5)
Convert if to switch statement.
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return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q: {subBuf[0]:X2} {subBuf[1]:X2} {
subBuf[2]:X2} {subBuf[3]:X2} {subBuf[4]:X2} {subBuf[5]:X2} {subBuf[6]:X2} {
subBuf[7]:X2} {subBuf[8]:X2} {subBuf[9]:X2} CRC 0x{subBuf[10]:X2}{subBuf[11]
:X2} ({(crcOk ? "OK" : "BAD")}), R-W {(rwEmpty ? "empty" : "not empty")
}";
switch(subBuf[2])
{
case <= 0x40:
return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr
} skip interval start time {subBuf[7]:X2}{subBuf[8]:X2}{subBuf[9]
:X2}, skip interval stop time {subBuf[3]:X2}{subBuf[4]:X2}{subBuf[5]
:X2}, CRC 0x{subBuf[10]:X2}{subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}";
case 0xB0:
return final ? $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr
} next program area can start at {subBuf[3]:X2}:{subBuf[4]:X2}:{subBuf[5]
:X2} (LBA {nextPos}), last-session, {zero} mode 5 pointers, CRC 0x{
subBuf[10]:X2}{subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}" : $"{minute:D2}:{second:D2}:{frame
:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {
adr} next program area can start at {subBuf[3]
:X2}:{subBuf[4]:X2}:{subBuf[5]:X2} (LBA {
nextPos}), maximum Lead-out at {subBuf[7]
:X2}:{subBuf[8]:X2}:{subBuf[9]
:X2} (LBA {maxOut}), {zero
} mode 5 pointers, CRC 0x{subBuf[10]:X2}{
subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")
}), R-W {(rwEmpty ? "empty"
: "not empty")}";
case 0xB1:
return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr}, {pmin
} skip interval pointers, {psec} skip track assignments, CRC 0x{subBuf[10]:X2}{
subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}";
}
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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if(subBuf[2] != 0xB2 &&
subBuf[2] != 0xB3 &&
subBuf[2] != 0xB4)
Convert if to switch statement.
2022-11-13 19:38:02 +00:00
return subBuf[2] == 0xC0 ? $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {
(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr}, ATIP values {subBuf[3]:X2}, {
subBuf[4]:X2}, {subBuf[5]:X2}, first disc Lead-in starts at {subBuf[7]:X2}{subBuf[8]:X2}{
subBuf[9]:X2} (LBA {qStart}), CRC 0x{subBuf[10]:X2}{subBuf[11]:X2} ({
(crcOk ? "OK" : "BAD")}), R-W {(rwEmpty ? "empty" : "not empty")}" : $"{minute
:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q: {subBuf[0]:X2} {
subBuf[1]:X2} {subBuf[2]:X2} {subBuf[3]:X2} {subBuf[4]
:X2} {subBuf[5]:X2} {subBuf[6]:X2} {subBuf[7]:X2} {
subBuf[8]:X2} {subBuf[9]:X2} CRC 0x{subBuf[10]:X2}{
subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
string skipTracks = $"{subBuf[3]:X2}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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if(subBuf[4] > 0)
skipTracks += $", {subBuf[4]:X2}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
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if(subBuf[5] > 0)
skipTracks += $", {subBuf[4]:X2}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
if(subBuf[7] > 0)
skipTracks += $", {subBuf[4]:X2}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
if(subBuf[8] > 0)
skipTracks += $", {subBuf[4]:X2}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
if(subBuf[9] > 0)
skipTracks += $", {subBuf[4]:X2}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
Convert if to switch statement.
2022-11-13 19:38:02 +00:00
return $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr}, tracks {skipTracks
} to be skipped, CRC 0x{subBuf[10]:X2}{subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}";
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
}
Fix ISRC decoding.
2020-05-05 18:55:29 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
area = subBuf[1] == 0xAA ? "Lead-out" : "Program";
return adr switch
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
{
Convert if to switch statement.
2022-11-13 19:38:02 +00:00
1 => $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} position: track {
subBuf[1]:X} index {subBuf[2]:X} relative position {subBuf[3]:X2}:{subBuf[4]
:X2}:{subBuf[5]:X2} (LBA {qPos + 150}), absolute position {subBuf[7]
:X2}:{subBuf[8]:X2}:{subBuf[9]:X2} (LBA {qStart}), Q CRC 0x{subBuf[10]
:X2}{subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}",
2 => $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} MCN: {DecodeMcn(subBuf)
} frame {subBuf[9]:X2} CRC 0x{subBuf[10]:X2}{subBuf[11]:X2} ({
(crcOk ? "OK" : "BAD")}), R-W {(rwEmpty ? "empty" : "not empty")}",
3 => $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q mode {adr} ISRC: {
DecodeIsrc(subBuf)} frame {subBuf[9]:X2} CRC 0x{subBuf[10]:X2}{subBuf[11]
:X2} ({(crcOk ? "OK" : "BAD")}), R-W {(rwEmpty ? "empty" : "not empty")
}",
_ => $"{minute:D2}:{second:D2}:{frame:D2} - LBA {lba,6}: {area} area, {(corruptedPause
? "corrupted pause"
: pause
? "pause"
: "not pause")}, {controlInfo}, {copy}, Q: {subBuf[0]:X2} {subBuf[1]:X2} {
subBuf[2]:X2} {subBuf[3]:X2} {subBuf[4]:X2} {subBuf[5]:X2} {subBuf[6]:X2} {
subBuf[7]:X2} {subBuf[8]:X2} {subBuf[9]:X2} CRC 0x{subBuf[10]:X2}{
subBuf[11]:X2} ({(crcOk ? "OK" : "BAD")}), R-W {
(rwEmpty ? "empty" : "not empty")}"
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
};
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
}
Convert if to switch statement.
2022-11-13 19:38:02 +00:00
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}";
Use subchannel, if available, to set MCN.
2020-05-05 21:08:41 +01:00
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
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}";
Fix MCN and ISRC subchannels.
2020-06-14 00:30:57 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
public static byte GetIsrcCode(char c)
{
switch(c)
Fix MCN and ISRC subchannels.
2020-06-14 00:30:57 +01:00
{
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
case '0': return 0x00;
case '1': return 0x01;
case '2': return 0x02;
case '3': return 0x03;
case '4': return 0x04;
case '5': return 0x05;
case '6': return 0x06;
case '7': return 0x07;
case '8': return 0x08;
case '9': return 0x09;
case 'A': return 0x11;
case 'B': return 0x12;
case 'C': return 0x13;
case 'D': return 0x14;
case 'E': return 0x15;
case 'F': return 0x16;
case 'G': return 0x17;
case 'H': return 0x18;
case 'I': return 0x19;
case 'J': return 0x1A;
case 'K': return 0x1B;
case 'L': return 0x1C;
case 'M': return 0x1D;
case 'N': return 0x1E;
case 'O': return 0x1F;
case 'P': return 0x20;
case 'Q': return 0x21;
case 'R': return 0x22;
case 'S': return 0x23;
case 'T': return 0x24;
case 'U': return 0x25;
case 'V': return 0x26;
case 'W': return 0x27;
case 'X': return 0x28;
case 'Y': return 0x29;
case 'Z': return 0x2A;
default: return 0x00;
Fix MCN and ISRC subchannels.
2020-06-14 00:30:57 +01:00
}
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
}
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
public static byte[] Generate(int sector, uint trackSequence, int pregap, int trackStart, byte flags, byte index)
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
{
bool isPregap = sector < 0 || sector <= trackStart + pregap;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
if(index == 0)
index = (byte)(isPregap ? 0 : 1);
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
var sub = new byte[96];
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
// 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;
}
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
// Q
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
var q = new byte[12];
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
q[0] = (byte)((flags << 4) + 1);
q[1] = (byte)trackSequence;
q[2] = index;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
int relative;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
if(isPregap)
relative = pregap + trackStart - sector;
else
relative = sector - trackStart;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
sector += 150;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
int min = relative / 60 / 75;
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
int sec = relative / 75 - min * 60;
int frame = relative - min * 60 * 75 - sec * 75;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
int amin = sector / 60 / 75;
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
int asec = sector / 75 - amin * 60;
int aframe = sector - amin * 60 * 75 - asec * 75;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
q[3] = (byte)min;
q[4] = (byte)sec;
q[5] = (byte)frame;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
q[7] = (byte)amin;
q[8] = (byte)asec;
q[9] = (byte)aframe;
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
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);
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
General cleanup and refactor.
2022-03-07 07:36:42 +00:00
q[9] = (byte)(((q[9] / 10) << 4) + q[9] % 10);
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
CRC16CCITTContext.Data(q, 10, out byte[] qCrc);
q[10] = qCrc[0];
q[11] = qCrc[1];
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
Array.Copy(q, 0, sub, 12, 12);
Add option to generate subchannels for undumped ones.
2020-07-13 22:32:40 +01:00
Move to file scoped namespaces.
2022-03-06 13:29:37 +00:00
return Interleave(sub);
Move common subchannel code to decoders.
2020-05-05 14:06:49 +01:00
}
}
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