Aaru/DVD/Layers.cs

// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename       : Layers.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Device structures decoders.
//
// --[ Description ] ----------------------------------------------------------
//
//     Records DVD layers structures.
//
// --[ 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 <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2016 Natalia Portillo
// ****************************************************************************/

namespace DiscImageChef.Decoders.DVD
{
    /// <summary>
    /// 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
    /// ECMA 365
    /// </summary>
    public static class Layers
    {
        public struct LayerCapacity
        {
            /// <summary>
            /// Bytes 0 to 1
            /// Data length
            /// </summary>
            public ushort DataLength;
            /// <summary>
            /// Byte 2
            /// Reserved
            /// </summary>
            public byte Reserved1;
            /// <summary>
            /// Byte 3
            /// Reserved
            /// </summary>
            public byte Reserved2;
            /// <summary>
            /// Byte 4, bit 7
            /// If set, L0 capacity is immutable
            /// </summary>
            public bool InitStatus;
            /// <summary>
            /// Byte 4, bits 6 to 0
            /// Reserved
            /// </summary>
            public byte Reserved3;
            /// <summary>
            /// Byte 5
            /// Reserved
            /// </summary>
            public byte Reserved4;
            /// <summary>
            /// Byte 6
            /// Reserved
            /// </summary>
            public byte Reserved5;
            /// <summary>
            /// Byte 7
            /// Reserved
            /// </summary>
            public byte Reserved6;
            /// <summary>
            /// Byte 8 to 11
            /// L0 Data Area Capacity
            /// </summary>
            public uint Capacity;
        }

        public struct MiddleZoneStartAddress
        {
            /// <summary>
            /// Bytes 0 to 1
            /// Data length = 10
            /// </summary>
            public ushort DataLength;
            /// <summary>
            /// Byte 2
            /// Reserved
            /// </summary>
            public byte Reserved1;
            /// <summary>
            /// Byte 3
            /// Reserved
            /// </summary>
            public byte Reserved2;
            /// <summary>
            /// Byte 4, bit 7
            /// If set, L0 shifter middle area is immutable
            /// </summary>
            public bool InitStatus;
            /// <summary>
            /// Byte 4, bits 6 to 0
            /// Reserved
            /// </summary>
            public byte Reserved3;
            /// <summary>
            /// Byte 5
            /// Reserved
            /// </summary>
            public byte Reserved4;
            /// <summary>
            /// Byte 6
            /// Reserved
            /// </summary>
            public byte Reserved5;
            /// <summary>
            /// Byte 7
            /// Reserved
            /// </summary>
            public byte Reserved6;
            /// <summary>
            /// Byte 8 to 11
            /// Start LBA of Shifted Middle Area on L0
            /// </summary>
            public uint ShiftedMiddleAreaStartAddress;
        }

        public struct JumpIntervalSize
        {
            /// <summary>
            /// Bytes 0 to 1
            /// Data length = 10
            /// </summary>
            public ushort DataLength;
            /// <summary>
            /// Byte 2
            /// Reserved
            /// </summary>
            public byte Reserved1;
            /// <summary>
            /// Byte 3
            /// Reserved
            /// </summary>
            public byte Reserved2;
            /// <summary>
            /// Byte 4
            /// Reserved
            /// </summary>
            public byte Reserved3;
            /// <summary>
            /// Byte 5
            /// Reserved
            /// </summary>
            public byte Reserved4;
            /// <summary>
            /// Byte 6
            /// Reserved
            /// </summary>
            public byte Reserved5;
            /// <summary>
            /// Byte 7
            /// Reserved
            /// </summary>
            public byte Reserved6;
            /// <summary>
            /// Byte 8 to 11
            /// Jump Interval size for the Regular Interval Layer Jump
            /// </summary>
            public uint Size;
        }

        public struct ManualLayerJumpAddress
        {
            /// <summary>
            /// Bytes 0 to 1
            /// Data length = 10
            /// </summary>
            public ushort DataLength;
            /// <summary>
            /// Byte 2
            /// Reserved
            /// </summary>
            public byte Reserved1;
            /// <summary>
            /// Byte 3
            /// Reserved
            /// </summary>
            public byte Reserved2;
            /// <summary>
            /// Byte 4
            /// Reserved
            /// </summary>
            public byte Reserved3;
            /// <summary>
            /// Byte 5
            /// Reserved
            /// </summary>
            public byte Reserved4;
            /// <summary>
            /// Byte 6
            /// Reserved
            /// </summary>
            public byte Reserved5;
            /// <summary>
            /// Byte 7
            /// Reserved
            /// </summary>
            public byte Reserved6;
            /// <summary>
            /// Byte 8 to 11
            /// LBA for the manual layer jump
            /// </summary>
            public uint LBA;
        }
    }
}