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328 lines
15 KiB
C#
328 lines
15 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : PMA.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Device structures decoders.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Decodes CD Power Management Area.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2016 Natalia Portillo
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// ****************************************************************************/
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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 PMA
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{
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public struct CDPMA
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{
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/// <summary>
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/// Total size of returned session information minus this field
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/// </summary>
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public ushort DataLength;
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/// <summary>
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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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/// Reserved
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/// </summary>
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public byte Reserved2;
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/// <summary>
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/// Track descriptors
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/// </summary>
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public CDPMADescriptors[] PMADescriptors;
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}
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public struct CDPMADescriptors
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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 Reserved;
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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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/// </summary>
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public byte TNO;
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/// <summary>
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/// Byte 3
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/// </summary>
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public byte POINT;
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/// <summary>
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/// Byte 4
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/// </summary>
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public byte Min;
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/// <summary>
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/// Byte 5
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/// </summary>
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public byte Sec;
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/// <summary>
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/// Byte 6
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/// </summary>
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public byte Frame;
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/// <summary>
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/// Byte 7, bits 7 to 4
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/// </summary>
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public byte HOUR;
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/// <summary>
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/// Byte 7, bits 3 to 0
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/// </summary>
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public byte PHOUR;
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/// <summary>
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/// Byte 8
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/// </summary>
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public byte PMIN;
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/// <summary>
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/// Byte 9
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/// </summary>
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public byte PSEC;
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/// <summary>
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/// Byte 10
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/// </summary>
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public byte PFRAME;
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}
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public static CDPMA? Decode(byte[] CDPMAResponse)
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{
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if(CDPMAResponse == null)
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return null;
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CDPMA decoded = new CDPMA();
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BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
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decoded.DataLength = BigEndianBitConverter.ToUInt16(CDPMAResponse, 0);
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decoded.Reserved1 = CDPMAResponse[2];
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decoded.Reserved2 = CDPMAResponse[3];
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decoded.PMADescriptors = new CDPMADescriptors[(decoded.DataLength - 2) / 11];
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if(decoded.DataLength + 2 != CDPMAResponse.Length)
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{
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DicConsole.DebugWriteLine("CD PMA decoder", "Expected CDPMA size ({0} bytes) is not received size ({1} bytes), not decoding", decoded.DataLength + 2, CDPMAResponse.Length);
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return null;
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}
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for(int i = 0; i < ((decoded.DataLength - 2) / 11); i++)
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{
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decoded.PMADescriptors[i].Reserved = CDPMAResponse[0 + i * 11 + 4];
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decoded.PMADescriptors[i].ADR = (byte)((CDPMAResponse[1 + i * 11 + 4] & 0xF0) >> 4);
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decoded.PMADescriptors[i].CONTROL = (byte)(CDPMAResponse[1 + i * 11 + 4] & 0x0F);
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decoded.PMADescriptors[i].TNO = CDPMAResponse[2 + i * 11 + 4];
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decoded.PMADescriptors[i].POINT = CDPMAResponse[3 + i * 11 + 4];
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decoded.PMADescriptors[i].Min = CDPMAResponse[4 + i * 11 + 4];
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decoded.PMADescriptors[i].Sec = CDPMAResponse[5 + i * 11 + 4];
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decoded.PMADescriptors[i].Frame = CDPMAResponse[6 + i * 11 + 4];
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decoded.PMADescriptors[i].HOUR = (byte)((CDPMAResponse[7 + i * 11 + 4] & 0xF0) >> 4);
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decoded.PMADescriptors[i].PHOUR = (byte)(CDPMAResponse[7 + i * 11 + 4] & 0x0F);
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decoded.PMADescriptors[i].PMIN = CDPMAResponse[8 + i * 11 + 4];
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decoded.PMADescriptors[i].PSEC = CDPMAResponse[9 + i * 11 + 4];
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decoded.PMADescriptors[i].PFRAME = CDPMAResponse[10 + i * 11 + 4];
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}
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return decoded;
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}
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public static string Prettify(CDPMA? CDPMAResponse)
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{
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if(CDPMAResponse == null)
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return null;
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CDPMA response = CDPMAResponse.Value;
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StringBuilder sb = new StringBuilder();
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#if DEBUG
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if(response.Reserved1 != 0)
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sb.AppendFormat("Reserved1 = 0x{0:X2}", response.Reserved1).AppendLine();
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if(response.Reserved2 != 0)
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sb.AppendFormat("Reserved2 = 0x{0:X2}", response.Reserved2).AppendLine();
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#endif
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foreach(CDPMADescriptors descriptor in response.PMADescriptors)
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{
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#if DEBUG
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if(descriptor.Reserved != 0)
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sb.AppendFormat("Reserved = 0x{0:X2}", descriptor.Reserved).AppendLine();
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#endif
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switch(descriptor.ADR)
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{
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case 1:
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if(descriptor.POINT > 0)
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{
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sb.AppendFormat("Track {0}", descriptor.POINT);
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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.Append(" (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.Append(" (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.Append(" (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.Append(" (Quadraphonic 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.Append(" (Data track, recorded uninterrupted)");
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break;
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case TOC_CONTROL.DataTrackIncremental:
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sb.Append(" (Data track, recorded incrementally)");
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break;
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}
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if(descriptor.PHOUR > 0)
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sb.AppendFormat(" starts at {3}:{0:D2}:{1:D2}:{2:D2}", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME, descriptor.PHOUR);
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else
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sb.AppendFormat(" starts at {0:D2}:{1:D2}:{2:D2}", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME);
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if(descriptor.PHOUR > 0)
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sb.AppendFormat(" and ends at {3}:{0:D2}:{1:D2}:{2:D2}", descriptor.Min, descriptor.Sec, descriptor.Frame, descriptor.HOUR);
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else
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sb.AppendFormat(" and ends at {0:D2}:{1:D2}:{2:D2}", descriptor.Min, descriptor.Sec, descriptor.Frame);
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sb.AppendLine();
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}
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else
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goto default;
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break;
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case 2:
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uint id = (uint)((descriptor.Min << 16) + (descriptor.Sec << 8) + descriptor.Frame);
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sb.AppendFormat("Disc ID: {0:X6}", id & 0x00FFFFFF).AppendLine();
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break;
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case 3:
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sb.AppendFormat("Skip track assignment {0} says that tracks ", descriptor.POINT);
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if(descriptor.Min > 0)
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sb.AppendFormat("{0} ", descriptor.Min);
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if(descriptor.Sec > 0)
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sb.AppendFormat("{0} ", descriptor.Sec);
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if(descriptor.Frame > 0)
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sb.AppendFormat("{0} ", descriptor.Frame);
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if(descriptor.PMIN > 0)
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sb.AppendFormat("{0} ", descriptor.PMIN);
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if(descriptor.PSEC > 0)
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sb.AppendFormat("{0} ", descriptor.PSEC);
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if(descriptor.PFRAME > 0)
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sb.AppendFormat("{0} ", descriptor.PFRAME);
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sb.AppendLine("should be skipped");
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break;
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case 4:
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sb.AppendFormat("Unskip track assignment {0} says that tracks ", descriptor.POINT);
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if(descriptor.Min > 0)
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sb.AppendFormat("{0} ", descriptor.Min);
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if(descriptor.Sec > 0)
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sb.AppendFormat("{0} ", descriptor.Sec);
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if(descriptor.Frame > 0)
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sb.AppendFormat("{0} ", descriptor.Frame);
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if(descriptor.PMIN > 0)
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sb.AppendFormat("{0} ", descriptor.PMIN);
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if(descriptor.PSEC > 0)
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sb.AppendFormat("{0} ", descriptor.PSEC);
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if(descriptor.PFRAME > 0)
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sb.AppendFormat("{0} ", descriptor.PFRAME);
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sb.AppendLine("should not be skipped");
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break;
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case 5:
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sb.AppendFormat("Skip time interval assignment {0} says that from ", descriptor.POINT);
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if(descriptor.PHOUR > 0)
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sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME, descriptor.PHOUR);
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else
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sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME);
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if(descriptor.PHOUR > 0)
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sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame, descriptor.HOUR);
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else
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sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame);
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sb.AppendLine("should be skipped");
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break;
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case 6:
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sb.AppendFormat("Unskip time interval assignment {0} says that from ", descriptor.POINT);
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if(descriptor.PHOUR > 0)
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sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME, descriptor.PHOUR);
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else
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sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME);
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if(descriptor.PHOUR > 0)
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sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame, descriptor.HOUR);
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else
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sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame);
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sb.AppendLine("should not be skipped");
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break;
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default:
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sb.AppendFormat("ADR = {0}", descriptor.ADR).AppendLine();
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sb.AppendFormat("CONTROL = {0}", descriptor.CONTROL).AppendLine();
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sb.AppendFormat("TNO = {0}", descriptor.TNO).AppendLine();
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sb.AppendFormat("POINT = {0}", descriptor.POINT).AppendLine();
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sb.AppendFormat("Min = {0}", descriptor.Min).AppendLine();
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sb.AppendFormat("Sec = {0}", descriptor.Sec).AppendLine();
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sb.AppendFormat("Frame = {0}", descriptor.Frame).AppendLine();
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sb.AppendFormat("HOUR = {0}", descriptor.HOUR).AppendLine();
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sb.AppendFormat("PHOUR = {0}", descriptor.PHOUR).AppendLine();
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sb.AppendFormat("PMIN = {0}", descriptor.PMIN).AppendLine();
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sb.AppendFormat("PSEC = {0}", descriptor.PSEC).AppendLine();
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sb.AppendFormat("PFRAME = {0}", descriptor.PFRAME).AppendLine();
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break;
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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[] CDPMAResponse)
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{
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CDPMA? decoded = Decode(CDPMAResponse);
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return Prettify(decoded);
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}
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}
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}
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