mirror of
https://github.com/aaru-dps/Aaru.git
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302 lines
11 KiB
C#
302 lines
11 KiB
C#
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// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : DI.cs
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// Version : 1.0
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// Author(s) : Natalia Portillo
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//
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// Component : Component
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//
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// Revision : $Revision$
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// Last change by : $Author$
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// Date : $Date$
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Description
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright (C) 2011-2015 Claunia.com
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// ****************************************************************************/
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// //$Id$
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using System;
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using DiscImageChef.Console;
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using System.Collections.Generic;
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using System.Text;
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namespace DiscImageChef.Decoders.Bluray
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{
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/// <summary>
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/// Information from the following standards:
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/// ANSI X3.304-1997
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/// T10/1048-D revision 9.0
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/// T10/1048-D revision 10a
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/// T10/1228-D revision 7.0c
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/// T10/1228-D revision 11a
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/// T10/1363-D revision 10g
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/// T10/1545-D revision 1d
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/// T10/1545-D revision 5
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/// T10/1545-D revision 5a
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/// T10/1675-D revision 2c
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/// T10/1675-D revision 4
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/// T10/1836-D revision 2g
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/// </summary>
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public static class DI
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{
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#region Private constants
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const string DiscTypeBDROM = "BDO";
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const string DiscTypeBDRE = "BDW";
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const string DiscTypeBDR = "BDR";
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/// <summary>
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/// Disc Information Unit Identifier "DI"
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/// </summary>
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const UInt16 DIUIdentifier = 0x4449;
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#endregion Private constants
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#region Public methods
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public static DiscInformation? Decode(byte[] DIResponse)
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{
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if (DIResponse == null)
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return null;
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if (DIResponse.Length != 4100)
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{
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DicConsole.DebugWriteLine("BD Disc Information decoder", "Found incorrect Blu-ray Disc Information size ({0} bytes)", DIResponse.Length);
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return null;
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}
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DiscInformation decoded = new DiscInformation();
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BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
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decoded.DataLength = BigEndianBitConverter.ToUInt16(DIResponse, 0);
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decoded.Reserved1 = DIResponse[2];
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decoded.Reserved2 = DIResponse[3];
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int offset = 4;
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List<DiscInformationUnits> units = new List<DiscInformationUnits>();
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while (true)
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{
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if (offset >= 100)
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break;
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DiscInformationUnits unit = new DiscInformationUnits();
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unit.Signature = BigEndianBitConverter.ToUInt16(DIResponse, 0 + offset);
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if (unit.Signature != DIUIdentifier)
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break;
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unit.Format = DIResponse[2 + offset];
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unit.UnitsPerBlock = DIResponse[3 + offset];
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unit.Legacy = DIResponse[4 + offset];
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unit.Sequence = DIResponse[5 + offset];
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unit.Length = DIResponse[6 + offset];
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unit.Reserved = DIResponse[7 + offset];
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unit.DiscTypeIdentifier = new byte[3];
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Array.Copy(DIResponse, 8 + offset, unit.DiscTypeIdentifier, 0, 3);
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unit.DiscSizeClassVersion = DIResponse[11 + offset];
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switch (Encoding.ASCII.GetString(unit.DiscTypeIdentifier))
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{
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case DiscTypeBDROM:
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{
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unit.FormatDependentContents = new byte[52];
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Array.Copy(DIResponse, 12 + offset, unit.DiscTypeIdentifier, 0, 52);
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break;
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}
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case DiscTypeBDRE:
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case DiscTypeBDR:
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{
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unit.FormatDependentContents = new byte[88];
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Array.Copy(DIResponse, 12 + offset, unit.DiscTypeIdentifier, 0, 88);
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unit.ManufacturerID = new byte[6];
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Array.Copy(DIResponse, 100 + offset, unit.ManufacturerID, 0, 6);
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unit.MediaTypeID = new byte[3];
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Array.Copy(DIResponse, 106 + offset, unit.MediaTypeID, 0, 3);
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unit.TimeStamp = BigEndianBitConverter.ToUInt16(DIResponse, 109 + offset);
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unit.ProductRevisionNumber = DIResponse[111 + offset];
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break;
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}
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default:
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{
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DicConsole.DebugWriteLine("BD Disc Information decoder", "Found unknown disc type identifier \"{0}\"", Encoding.ASCII.GetString(unit.DiscTypeIdentifier));
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break;
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}
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}
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units.Add(unit);
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offset += unit.Length;
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}
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if (units.Count > 0)
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{
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decoded.Units = new DiscInformationUnits[units.Count];
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for (int i = 0; i < units.Count; i++)
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decoded.Units[i] = units[i];
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}
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return decoded;
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}
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public static string Prettify(DiscInformation? DIResponse)
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{
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if (DIResponse == null)
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return null;
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DiscInformation response = DIResponse.Value;
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StringBuilder sb = new StringBuilder();
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foreach (DiscInformationUnits unit in response.Units)
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{
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sb.AppendFormat("DI Unit Sequence: {0}", unit.Sequence).AppendLine();
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sb.AppendFormat("DI Unit Format: 0x{0:X2}", unit.Format).AppendLine();
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sb.AppendFormat("There are {0} per block", unit.UnitsPerBlock).AppendLine();
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if (Encoding.ASCII.GetString(unit.DiscTypeIdentifier) != DiscTypeBDROM)
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sb.AppendFormat("Legacy value: 0x{0:X2}", unit.Legacy).AppendLine();
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sb.AppendFormat("DI Unit is {0} bytes", unit.Length).AppendLine();
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sb.AppendFormat("Disc type identifier: \"{0}\"", Encoding.ASCII.GetString(unit.DiscTypeIdentifier)).AppendLine();
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sb.AppendFormat("Disc size/class/version: {0}", unit.DiscSizeClassVersion).AppendLine();
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if (Encoding.ASCII.GetString(unit.DiscTypeIdentifier) == DiscTypeBDR ||
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Encoding.ASCII.GetString(unit.DiscTypeIdentifier) == DiscTypeBDRE)
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{
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sb.AppendFormat("Disc manufacturer ID: \"{0}\"", Encoding.ASCII.GetString(unit.ManufacturerID)).AppendLine();
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sb.AppendFormat("Disc media type ID: \"{0}\"", Encoding.ASCII.GetString(unit.MediaTypeID)).AppendLine();
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sb.AppendFormat("Disc timestamp: 0x{0:X2}", unit.TimeStamp).AppendLine();
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sb.AppendFormat("Disc product revison number: {0}", unit.ProductRevisionNumber).AppendLine();
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}
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sb.AppendFormat("Blu-ray DI Unit format dependent contents as hex follows:");
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sb.AppendLine(PrintHex.ByteArrayToHexArrayString(unit.FormatDependentContents, 80));
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}
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return sb.ToString();
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}
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public static string Prettify(byte[] DIResponse)
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{
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return Prettify(Decode(DIResponse));
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}
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#endregion Public methods
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#region Public structures
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public struct DiscInformation
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{
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/// <summary>
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/// Bytes 0 to 1
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/// Always 4098
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/// </summary>
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public UInt16 DataLength;
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/// <summary>
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/// Byte 2
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/// Reserved
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/// </summary>
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public byte Reserved1;
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/// <summary>
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/// Byte 3
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/// Reserved
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/// </summary>
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public byte Reserved2;
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/// <summary>
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/// Byte 4 to 4099
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/// Disc information units
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/// </summary>
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public DiscInformationUnits[] Units;
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}
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public struct DiscInformationUnits
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{
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/// <summary>
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/// Byte 0
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/// "DI"
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/// </summary>
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public UInt16 Signature;
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/// <summary>
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/// Byte 2
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/// Disc information format
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/// </summary>
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public byte Format;
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/// <summary>
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/// Byte 3
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/// Number of DI units per block
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/// </summary>
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public byte UnitsPerBlock;
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/// <summary>
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/// Byte 4
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/// Reserved for BD-ROM, legacy information for BD-R/-RE
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/// </summary>
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public byte Legacy;
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/// <summary>
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/// Byte 5
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/// Sequence number for this DI unit
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/// </summary>
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public byte Sequence;
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/// <summary>
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/// Byte 6
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/// Number of bytes used by this DI unit, should be 64 for BD-ROM and 112 for BD-R/-RE
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/// </summary>
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public byte Length;
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/// <summary>
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/// Byte 7
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/// Reserved
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/// </summary>
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public byte Reserved;
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/// <summary>
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/// Bytes 8 to 10
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/// Disc type identifier
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/// </summary>
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public byte[] DiscTypeIdentifier;
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/// <summary>
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/// Byte 11
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/// Disc size/class/version
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/// </summary>
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public byte DiscSizeClassVersion;
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/// <summary>
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/// Bytes 12 to 63 for BD-ROM, bytes 12 to 99 for BD-R/-RE
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/// Format dependent contents, disclosed in private blu-ray specifications
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/// </summary>
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public byte[] FormatDependentContents;
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/// <summary>
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/// Bytes 100 to 105, BD-R/-RE only
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/// Manufacturer ID
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/// </summary>
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public byte[] ManufacturerID;
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/// <summary>
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/// Bytes 106 to 108, BD-R/-RE only
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/// Media type ID
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/// </summary>
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public byte[] MediaTypeID;
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/// <summary>
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/// Bytes 109 to 110, BD-R/-RE only
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/// Timestamp
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/// </summary>
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public UInt16 TimeStamp;
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/// <summary>
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/// Byte 111
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/// Product revision number
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/// </summary>
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public byte ProductRevisionNumber;
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}
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#endregion Public structures
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}
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}
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