mirror of
https://github.com/aaru-dps/Aaru.Decoders.git
synced 2025-12-16 19:24:32 +00:00
Natalia Portillo
bf38b4cc3d
* DiscImageChef.Decoders/CD/PMA.cs: * DiscImageChef.Decoders/CD/ATIP.cs: * DiscImageChef.Decoders/CD/Session.cs: * DiscImageChef.Decoders/CD/FullTOC.cs: * DiscImageChef.Decoders/CD/CDTextOnLeadIn.cs: Rename fields, methods and structs to more adequate names. * DiscImageChef/Commands/Decode.cs: Rename CD decoders fields, methods and structs to more adequate names.
236 lines
9.2 KiB
C#
236 lines
9.2 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : TOC.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.Text;
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namespace DiscImageChef.Decoders.CD
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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 TOC
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{
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public struct CDTOC
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{
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/// <summary>
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/// Total size of returned TOC minus this field
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/// </summary>
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public UInt16 DataLength;
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/// <summary>
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/// First track number in hex
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/// </summary>
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public byte FirstTrack;
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/// <summary>
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/// Last track number in hex
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/// </summary>
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public byte LastTrack;
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/// <summary>
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/// Track descriptors
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/// </summary>
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public CDTOCTrackDataDescriptor[] TrackDescriptors;
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}
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public struct CDTOCTrackDataDescriptor
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{
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/// <summary>
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/// Byte 0
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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 1, bits 7 to 4
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/// Type of information in Q subchannel of block where this TOC entry was found
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/// </summary>
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public byte ADR;
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/// <summary>
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/// Byte 1, bits 3 to 0
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/// Track attributes
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/// </summary>
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public byte CONTROL;
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/// <summary>
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/// Byte 2
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/// Track number
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/// </summary>
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public byte TrackNumber;
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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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/// Bytes 4 to 7
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/// The track start address in LBA or in MSF
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/// </summary>
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public UInt32 TrackStartAddress;
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}
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public static CDTOC? Decode(byte[] CDTOCResponse)
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{
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if (CDTOCResponse == null)
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return null;
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CDTOC decoded = new CDTOC();
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BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
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decoded.DataLength = BigEndianBitConverter.ToUInt16(CDTOCResponse, 0);
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decoded.FirstTrack = CDTOCResponse[2];
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decoded.LastTrack = CDTOCResponse[3];
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decoded.TrackDescriptors = new CDTOCTrackDataDescriptor[(decoded.DataLength - 2) / 8];
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if (decoded.DataLength + 2 != CDTOCResponse.Length)
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{
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DicConsole.DebugWriteLine("CD TOC decoder", "Expected CDTOC size ({0} bytes) is not received size ({1} bytes), not decoding", decoded.DataLength + 2, CDTOCResponse.Length);
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return null;
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}
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for (int i = 0; i < ((decoded.DataLength - 2) / 8); i++)
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{
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decoded.TrackDescriptors[i].Reserved1 = CDTOCResponse[0 + i * 8 + 4];
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decoded.TrackDescriptors[i].ADR = (byte)((CDTOCResponse[1 + i * 8 + 4] & 0xF0) >> 4);
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decoded.TrackDescriptors[i].CONTROL = (byte)(CDTOCResponse[1 + i * 8 + 4] & 0x0F);
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decoded.TrackDescriptors[i].TrackNumber = CDTOCResponse[2 + i * 8 + 4];
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decoded.TrackDescriptors[i].Reserved2 = CDTOCResponse[3 + i * 8 + 4];
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decoded.TrackDescriptors[i].TrackStartAddress = BigEndianBitConverter.ToUInt32(CDTOCResponse, 4 + i * 8 + 4);
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}
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return decoded;
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}
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public static string Prettify(CDTOC? CDTOCResponse)
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{
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if (CDTOCResponse == null)
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return null;
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CDTOC response = CDTOCResponse.Value;
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StringBuilder sb = new StringBuilder();
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sb.AppendFormat("First track number in first complete session: {0}", response.FirstTrack).AppendLine();
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sb.AppendFormat("Last track number in last complete session: {0}", response.LastTrack).AppendLine();
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foreach (CDTOCTrackDataDescriptor descriptor in response.TrackDescriptors)
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{
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sb.AppendFormat("Track number: {0}", descriptor.TrackNumber);
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sb.AppendFormat("Track starts at LBA {0}, or MSF {1:X2}:{2:X2}:{3:X2}", descriptor.TrackStartAddress,
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(descriptor.TrackStartAddress & 0x0000FF00) >> 8,
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(descriptor.TrackStartAddress & 0x00FF0000) >> 16,
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(descriptor.TrackStartAddress & 0xFF000000) >> 24);
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switch ((TOC_ADR)descriptor.ADR)
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{
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case TOC_ADR.NoInformation:
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sb.AppendLine("Q subchannel mode not given");
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break;
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case TOC_ADR.CurrentPosition:
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sb.AppendLine("Q subchannel stores current position");
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break;
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case TOC_ADR.ISRC:
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sb.AppendLine("Q subchannel stores ISRC");
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break;
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case TOC_ADR.MediaCatalogNumber:
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sb.AppendLine("Q subchannel stores media catalog number");
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break;
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}
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if((descriptor.CONTROL & (byte)TOC_CONTROL.ReservedMask) == (byte)TOC_CONTROL.ReservedMask)
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sb.AppendFormat("Reserved flags 0x{0:X2} set", descriptor.CONTROL).AppendLine();
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else
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{
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switch ((TOC_CONTROL)(descriptor.CONTROL & 0x0D))
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{
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case TOC_CONTROL.TwoChanNoPreEmph:
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sb.AppendLine("Stereo audio track with no pre-emphasis");
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break;
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case TOC_CONTROL.TwoChanPreEmph:
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sb.AppendLine("Stereo audio track with 50/15 μs pre-emphasis");
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break;
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case TOC_CONTROL.FourChanNoPreEmph:
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sb.AppendLine("Quadraphonic audio track with no pre-emphasis");
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break;
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case TOC_CONTROL.FourChanPreEmph:
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sb.AppendLine("Stereo audio track with 50/15 μs pre-emphasis");
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break;
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case TOC_CONTROL.DataTrack:
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sb.AppendLine("Data track, recorded uninterrupted");
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break;
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case TOC_CONTROL.DataTrackIncremental:
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sb.AppendLine("Data track, recorded incrementally");
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break;
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}
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if ((descriptor.CONTROL & (byte)TOC_CONTROL.CopyPermissionMask) == (byte)TOC_CONTROL.CopyPermissionMask)
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sb.AppendLine("Digital copy of track is permitted");
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else
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sb.AppendLine("Digital copy of track is prohibited");
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#if DEBUG
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if(descriptor.Reserved1 != 0)
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sb.AppendFormat("Reserved1 = 0x{0:X2}", descriptor.Reserved1).AppendLine();
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if(descriptor.Reserved2 != 0)
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sb.AppendFormat("Reserved2 = 0x{0:X2}", descriptor.Reserved2).AppendLine();
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#endif
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sb.AppendLine();
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}
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}
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return sb.ToString();
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}
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public static string Prettify(byte[] CDTOCResponse)
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{
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CDTOC? decoded = Decode(CDTOCResponse);
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return Prettify(decoded);
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}
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}
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}
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