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Add method for unscrambling many DVD sectors at once (#8)

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Rebecca Wallander
2023-09-12 20:48:48 +02:00
committed by GitHub
parent 6e0e9405ae
commit e944d6b982
1 changed files with 14 additions and 0 deletions
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14
DVD/Sector.cs
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@@ -226,4 +226,18 @@ public sealed class Sector
return cipher == null ? sector : UnscrambleSector(sector, cipher); return cipher == null ? sector : UnscrambleSector(sector, cipher);
} }
public byte[] Scramble(byte[] sector, uint transferLength)
{
byte[] scrambled = new byte[sector.Length];
if(sector.Length % 2064 != 0 ||
sector.Length / 2064 != transferLength)
return sector;
for(uint i = 0; i < transferLength; i++)
Array.Copy(Scramble(sector.Skip((int)(i * 2064)).Take(2064).ToArray()), 0, scrambled, i * 2064, 2064);
return scrambled;
}
} }