Refactor image classes and split them to smaller files.

2025-12-16 19:24:25 +00:00 · 2018-07-23 23:25:43 +01:00
parent 55ca2d23b6
commit ed88989642
445 changed files with 50086 additions and 34342 deletions
--- a/DiscImageChef.DiscImages/Nero/Identify.cs
+++ b/DiscImageChef.DiscImages/Nero/Identify.cs
@@ -0,0 +1,73 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : Identify.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Disk image plugins.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Identifies Nero Burning ROM disc images.
+//
+// --[ 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 © 2011-2018 Natalia Portillo
+// ****************************************************************************/
+
+using System;
+using System.IO;
+using DiscImageChef.CommonTypes.Interfaces;
+using DiscImageChef.Console;
+
+namespace DiscImageChef.DiscImages
+{
+    public partial class Nero
+    {
+        public bool Identify(IFilter imageFilter)
+        {
+            imageStream                          = imageFilter.GetDataForkStream();
+            BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
+
+            NeroV1Footer footerV1 = new NeroV1Footer();
+            NeroV2Footer footerV2 = new NeroV2Footer();
+
+            imageStream.Seek(-8, SeekOrigin.End);
+            byte[] buffer = new byte[8];
+            imageStream.Read(buffer, 0, 8);
+            footerV1.ChunkId          = BigEndianBitConverter.ToUInt32(buffer, 0);
+            footerV1.FirstChunkOffset = BigEndianBitConverter.ToUInt32(buffer, 4);
+
+            imageStream.Seek(-12, SeekOrigin.End);
+            buffer = new byte[12];
+            imageStream.Read(buffer, 0, 12);
+            footerV2.ChunkId          = BigEndianBitConverter.ToUInt32(buffer, 0);
+            footerV2.FirstChunkOffset = BigEndianBitConverter.ToUInt64(buffer, 4);
+
+            DicConsole.DebugWriteLine("Nero plugin", "imageStream.Length = {0}",        imageStream.Length);
+            DicConsole.DebugWriteLine("Nero plugin", "footerV1.ChunkID = 0x{0:X8}",     footerV1.ChunkId);
+            DicConsole.DebugWriteLine("Nero plugin", "footerV1.FirstChunkOffset = {0}", footerV1.FirstChunkOffset);
+            DicConsole.DebugWriteLine("Nero plugin", "footerV2.ChunkID = 0x{0:X8}",     footerV2.ChunkId);
+            DicConsole.DebugWriteLine("Nero plugin", "footerV2.FirstChunkOffset = {0}", footerV2.FirstChunkOffset);
+
+            if(footerV2.ChunkId == NERO_FOOTER_V2 && footerV2.FirstChunkOffset < (ulong)imageStream.Length) return true;
+
+            return footerV1.ChunkId == NERO_FOOTER_V1 && footerV1.FirstChunkOffset < (ulong)imageStream.Length;
+        }
+    }
+}