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65 lines
2.9 KiB
C#
65 lines
2.9 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : HDDVD.cs
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// Author(s) : Rebecca Wallander <sakcheen@gmail.com>
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// HD DVD video disc helpers.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2026 Rebecca Wallander
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// ****************************************************************************/
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using Aaru.CommonTypes;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.CommonTypes.Structs;
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namespace Aaru.Decryption.Aacs;
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/// <summary>Aligns contiguous 2048-byte sectors to CPS units for decrypt during image conversion.</summary>
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public sealed class HDDVD
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{
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/// <summary>
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/// HD DVD video discs always have a <c>HVDVD_TS</c> folder. If it doesn't have one, it's not a HD DVD video.
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/// </summary>
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/// <param name="input"><c>IOpticalMediaImage</c> to check for <c>HVDVD_TS</c> folder in.</param>
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/// <param name="fs"><c>IReadOnlyFilesystem</c> to check in.</param>
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/// <param name="partition"><c>Partition</c> to check in.</param>
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/// <returns><c>true</c> if <c>HVDVD_TS</c> folder was found.</returns>
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public static bool HasHdDvdVideoTsFolder(IOpticalMediaImage input, IReadOnlyFilesystem fs, Partition partition)
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{
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ErrorNumber error = fs.Mount(input, partition, null, null, null);
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if(error != ErrorNumber.NoError) return false;
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error = fs.Stat("HVDVD_TS", out FileEntryInfo stat);
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fs.Unmount();
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return error == ErrorNumber.NoError;
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}
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} |