// /*************************************************************************** // The Disc Image Chef // ---------------------------------------------------------------------------- // // Filename : PMA.cs // Author(s) : Natalia Portillo // // Component : Device structures decoders. // // --[ Description ] ---------------------------------------------------------- // // Decodes CD Power Management Area. // // --[ License ] -------------------------------------------------------------- // // This library is free software; you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as // published by the Free Software Foundation; either version 2.1 of the // License, or (at your option) any later version. // // This library 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 // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, see . // // ---------------------------------------------------------------------------- // Copyright © 2011-2016 Natalia Portillo // ****************************************************************************/ using System; using DiscImageChef.Console; using System.Text; namespace DiscImageChef.Decoders.CD { /// /// Information from the following standards: /// ANSI X3.304-1997 /// T10/1048-D revision 9.0 /// T10/1048-D revision 10a /// T10/1228-D revision 7.0c /// T10/1228-D revision 11a /// T10/1363-D revision 10g /// T10/1545-D revision 1d /// T10/1545-D revision 5 /// T10/1545-D revision 5a /// T10/1675-D revision 2c /// T10/1675-D revision 4 /// T10/1836-D revision 2g /// public static class PMA { public struct CDPMA { /// /// Total size of returned session information minus this field /// public ushort DataLength; /// /// Reserved /// public byte Reserved1; /// /// Reserved /// public byte Reserved2; /// /// Track descriptors /// public CDPMADescriptors[] PMADescriptors; } public struct CDPMADescriptors { /// /// Byte 0 /// Reserved /// public byte Reserved; /// /// Byte 1, bits 7 to 4 /// Type of information in Q subchannel of block where this TOC entry was found /// public byte ADR; /// /// Byte 1, bits 3 to 0 /// Track attributes /// public byte CONTROL; /// /// Byte 2 /// public byte TNO; /// /// Byte 3 /// public byte POINT; /// /// Byte 4 /// public byte Min; /// /// Byte 5 /// public byte Sec; /// /// Byte 6 /// public byte Frame; /// /// Byte 7, bits 7 to 4 /// public byte HOUR; /// /// Byte 7, bits 3 to 0 /// public byte PHOUR; /// /// Byte 8 /// public byte PMIN; /// /// Byte 9 /// public byte PSEC; /// /// Byte 10 /// public byte PFRAME; } public static CDPMA? Decode(byte[] CDPMAResponse) { if(CDPMAResponse == null) return null; CDPMA decoded = new CDPMA(); BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian; decoded.DataLength = BigEndianBitConverter.ToUInt16(CDPMAResponse, 0); decoded.Reserved1 = CDPMAResponse[2]; decoded.Reserved2 = CDPMAResponse[3]; decoded.PMADescriptors = new CDPMADescriptors[(decoded.DataLength - 2) / 11]; if(decoded.DataLength + 2 != CDPMAResponse.Length) { DicConsole.DebugWriteLine("CD PMA decoder", "Expected CDPMA size ({0} bytes) is not received size ({1} bytes), not decoding", decoded.DataLength + 2, CDPMAResponse.Length); return null; } for(int i = 0; i < ((decoded.DataLength - 2) / 11); i++) { decoded.PMADescriptors[i].Reserved = CDPMAResponse[0 + i * 11 + 4]; decoded.PMADescriptors[i].ADR = (byte)((CDPMAResponse[1 + i * 11 + 4] & 0xF0) >> 4); decoded.PMADescriptors[i].CONTROL = (byte)(CDPMAResponse[1 + i * 11 + 4] & 0x0F); decoded.PMADescriptors[i].TNO = CDPMAResponse[2 + i * 11 + 4]; decoded.PMADescriptors[i].POINT = CDPMAResponse[3 + i * 11 + 4]; decoded.PMADescriptors[i].Min = CDPMAResponse[4 + i * 11 + 4]; decoded.PMADescriptors[i].Sec = CDPMAResponse[5 + i * 11 + 4]; decoded.PMADescriptors[i].Frame = CDPMAResponse[6 + i * 11 + 4]; decoded.PMADescriptors[i].HOUR = (byte)((CDPMAResponse[7 + i * 11 + 4] & 0xF0) >> 4); decoded.PMADescriptors[i].PHOUR = (byte)(CDPMAResponse[7 + i * 11 + 4] & 0x0F); decoded.PMADescriptors[i].PMIN = CDPMAResponse[8 + i * 11 + 4]; decoded.PMADescriptors[i].PSEC = CDPMAResponse[9 + i * 11 + 4]; decoded.PMADescriptors[i].PFRAME = CDPMAResponse[10 + i * 11 + 4]; } return decoded; } public static string Prettify(CDPMA? CDPMAResponse) { if(CDPMAResponse == null) return null; CDPMA response = CDPMAResponse.Value; StringBuilder sb = new StringBuilder(); #if DEBUG if(response.Reserved1 != 0) sb.AppendFormat("Reserved1 = 0x{0:X2}", response.Reserved1).AppendLine(); if(response.Reserved2 != 0) sb.AppendFormat("Reserved2 = 0x{0:X2}", response.Reserved2).AppendLine(); #endif foreach(CDPMADescriptors descriptor in response.PMADescriptors) { #if DEBUG if(descriptor.Reserved != 0) sb.AppendFormat("Reserved = 0x{0:X2}", descriptor.Reserved).AppendLine(); #endif switch(descriptor.ADR) { case 1: if(descriptor.POINT > 0) { sb.AppendFormat("Track {0}", descriptor.POINT); switch((TOC_CONTROL)(descriptor.CONTROL & 0x0D)) { case TOC_CONTROL.TwoChanNoPreEmph: sb.Append(" (Stereo audio track with no pre-emphasis)"); break; case TOC_CONTROL.TwoChanPreEmph: sb.Append(" (Stereo audio track with 50/15 μs pre-emphasis)"); break; case TOC_CONTROL.FourChanNoPreEmph: sb.Append(" (Quadraphonic audio track with no pre-emphasis)"); break; case TOC_CONTROL.FourChanPreEmph: sb.Append(" (Quadraphonic audio track with 50/15 μs pre-emphasis)"); break; case TOC_CONTROL.DataTrack: sb.Append(" (Data track, recorded uninterrupted)"); break; case TOC_CONTROL.DataTrackIncremental: sb.Append(" (Data track, recorded incrementally)"); break; } if(descriptor.PHOUR > 0) sb.AppendFormat(" starts at {3}:{0:D2}:{1:D2}:{2:D2}", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME, descriptor.PHOUR); else sb.AppendFormat(" starts at {0:D2}:{1:D2}:{2:D2}", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME); if(descriptor.PHOUR > 0) sb.AppendFormat(" and ends at {3}:{0:D2}:{1:D2}:{2:D2}", descriptor.Min, descriptor.Sec, descriptor.Frame, descriptor.HOUR); else sb.AppendFormat(" and ends at {0:D2}:{1:D2}:{2:D2}", descriptor.Min, descriptor.Sec, descriptor.Frame); sb.AppendLine(); } else goto default; break; case 2: uint id = (uint)((descriptor.Min << 16) + (descriptor.Sec << 8) + descriptor.Frame); sb.AppendFormat("Disc ID: {0:X6}", id & 0x00FFFFFF).AppendLine(); break; case 3: sb.AppendFormat("Skip track assignment {0} says that tracks ", descriptor.POINT); if(descriptor.Min > 0) sb.AppendFormat("{0} ", descriptor.Min); if(descriptor.Sec > 0) sb.AppendFormat("{0} ", descriptor.Sec); if(descriptor.Frame > 0) sb.AppendFormat("{0} ", descriptor.Frame); if(descriptor.PMIN > 0) sb.AppendFormat("{0} ", descriptor.PMIN); if(descriptor.PSEC > 0) sb.AppendFormat("{0} ", descriptor.PSEC); if(descriptor.PFRAME > 0) sb.AppendFormat("{0} ", descriptor.PFRAME); sb.AppendLine("should be skipped"); break; case 4: sb.AppendFormat("Unskip track assignment {0} says that tracks ", descriptor.POINT); if(descriptor.Min > 0) sb.AppendFormat("{0} ", descriptor.Min); if(descriptor.Sec > 0) sb.AppendFormat("{0} ", descriptor.Sec); if(descriptor.Frame > 0) sb.AppendFormat("{0} ", descriptor.Frame); if(descriptor.PMIN > 0) sb.AppendFormat("{0} ", descriptor.PMIN); if(descriptor.PSEC > 0) sb.AppendFormat("{0} ", descriptor.PSEC); if(descriptor.PFRAME > 0) sb.AppendFormat("{0} ", descriptor.PFRAME); sb.AppendLine("should not be skipped"); break; case 5: sb.AppendFormat("Skip time interval assignment {0} says that from ", descriptor.POINT); if(descriptor.PHOUR > 0) sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME, descriptor.PHOUR); else sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME); if(descriptor.PHOUR > 0) sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame, descriptor.HOUR); else sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame); sb.AppendLine("should be skipped"); break; case 6: sb.AppendFormat("Unskip time interval assignment {0} says that from ", descriptor.POINT); if(descriptor.PHOUR > 0) sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME, descriptor.PHOUR); else sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC, descriptor.PFRAME); if(descriptor.PHOUR > 0) sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame, descriptor.HOUR); else sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame); sb.AppendLine("should not be skipped"); break; default: sb.AppendFormat("ADR = {0}", descriptor.ADR).AppendLine(); sb.AppendFormat("CONTROL = {0}", descriptor.CONTROL).AppendLine(); sb.AppendFormat("TNO = {0}", descriptor.TNO).AppendLine(); sb.AppendFormat("POINT = {0}", descriptor.POINT).AppendLine(); sb.AppendFormat("Min = {0}", descriptor.Min).AppendLine(); sb.AppendFormat("Sec = {0}", descriptor.Sec).AppendLine(); sb.AppendFormat("Frame = {0}", descriptor.Frame).AppendLine(); sb.AppendFormat("HOUR = {0}", descriptor.HOUR).AppendLine(); sb.AppendFormat("PHOUR = {0}", descriptor.PHOUR).AppendLine(); sb.AppendFormat("PMIN = {0}", descriptor.PMIN).AppendLine(); sb.AppendFormat("PSEC = {0}", descriptor.PSEC).AppendLine(); sb.AppendFormat("PFRAME = {0}", descriptor.PFRAME).AppendLine(); break; } } return sb.ToString(); } public static string Prettify(byte[] CDPMAResponse) { CDPMA? decoded = Decode(CDPMAResponse); return Prettify(decoded); } } }