From 09bd6baa61ca02208d475d8c1852e79855538bf5 Mon Sep 17 00:00:00 2001
From: Natalia Portillo <claunia@claunia.com>
Date: Tue, 10 Mar 2020 19:31:09 +0000
Subject: [PATCH] Add decoder for mode 0 and mode 1 data from raw cd sectors.

---
 CD/Sector.cs | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/CD/Sector.cs b/CD/Sector.cs
index a223e6ab4..266ed44a0 100644
--- a/CD/Sector.cs
+++ b/CD/Sector.cs
@@ -207,6 +207,31 @@ namespace Aaru.Decoders.CD
             return scrambled;
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static byte[] GetUserData(byte[] data)
+        {
+            switch(data.Length)
+            {
+                case 2352 when data[0] != 0x00 || data[1] != 0xFF || data[2]  != 0xFF || data[3]  != 0xFF ||
+                               data[4] != 0xFF || data[5] != 0xFF || data[6]  != 0xFF || data[7]  != 0xFF ||
+                               data[8] != 0xFF || data[9] != 0xFF || data[10] != 0xFF || data[11] != 0x00: return data;
+                case 2352:
+                    switch(data[15])
+                    {
+                        case 0: return new byte[2048];
+                        case 1:
+                            byte[] sector = new byte[2048];
+                            Array.Copy(data, 16, sector, 0, 2048);
+
+                            return sector;
+                        case 2:  return GetUserDataFromMode2(data);
+                        default: return data;
+                    }
+                case 2336: return GetUserDataFromMode2(data);
+                default:   return data;
+            }
+        }
+
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static byte[] GetUserDataFromMode2(byte[] data)
         {