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67 lines
3.2 KiB
C#
67 lines
3.2 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Constants.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Contains constants for Aaru Format disk images.
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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 © 2011-2023 Natalia Portillo
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// ****************************************************************************/
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namespace Aaru.Images;
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public sealed partial class AaruFormat
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{
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/// <summary>Old magic identifier = "DICMFRMT".</summary>
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const ulong DIC_MAGIC = 0x544D52464D434944;
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/// <summary>Magic identifier = "AARUFRMT".</summary>
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const ulong AARU_MAGIC = 0x544D524655524141;
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/// <summary>
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/// Image format version. A change in this number indicates an incompatible change to the format that prevents
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/// older implementations from reading it correctly, if at all.
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/// </summary>
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const byte AARUFMT_VERSION_V1 = 1;
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/// <summary>Adds new index format with 64-bit entries counter</summary>
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const byte AARUFMT_VERSION = 2;
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/// <summary>Maximum read cache size, 256MiB.</summary>
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const uint MAX_CACHE_SIZE = 256 * 1024 * 1024;
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/// <summary>Size in bytes of LZMA properties.</summary>
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const int LZMA_PROPERTIES_LENGTH = 5;
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/// <summary>Maximum number of entries for the DDT cache.</summary>
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const int MAX_DDT_ENTRY_CACHE = 16000000;
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/// <summary>How many samples are contained in a RedBook sector.</summary>
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const int SAMPLES_PER_SECTOR = 588;
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/// <summary>Maximum number of samples for a FLAC block. Bigger than 4608 gives no benefit.</summary>
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const int MAX_FLAKE_BLOCK = 4608;
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/// <summary>
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/// Minimum number of samples for a FLAC block. <see cref="CUETools.Codecs.Flake" /> does not support it to be
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/// smaller than 256.
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/// </summary>
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const int MIN_FLAKE_BLOCK = 256;
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/// <summary>This mask is to check for flags in CompactDisc suffix/prefix DDT</summary>
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const uint CD_XFIX_MASK = 0xFF000000;
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/// <summary>This mask is to check for position in CompactDisc suffix/prefix deduplicated block</summary>
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const uint CD_DFIX_MASK = 0x00FFFFFF;
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} |