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Add helper for printing region device info

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This commit is contained in:
Rebecca Wallander
2021-01-24 14:49:38 +01:00
parent 9169073cc4
commit 2aeb1ada7c
1 changed files with 110 additions and 2 deletions
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108
DVD/CSS&CPRM.cs
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@@ -88,6 +88,108 @@ namespace Aaru.Decoders.DVD
};
}
public static string PrettifyRegionalPlaybackControlState(RegionalPlaybackControlState? rpc)
{
if(rpc == null)
{
return null;
}
RegionalPlaybackControlState decoded = rpc.Value;
var sb = new StringBuilder();
var typeCode =
(TypeCode)((decoded.TypeCode_VendorResetsAvailable_UserControlledChangesAvailable & 0xc0) >> 6);
int vendorResets = (decoded.TypeCode_VendorResetsAvailable_UserControlledChangesAvailable & 0x38) >> 3;
int userControlledChanges = decoded.TypeCode_VendorResetsAvailable_UserControlledChangesAvailable & 0x7;
switch(typeCode)
{
case TypeCode.None:
sb.AppendLine("No drive region setting.");
break;
case TypeCode.Set:
sb.AppendLine("Drive region is set.");
break;
case TypeCode.LastChance:
sb.AppendLine("Drive region is set, with additional restrictions required to make a change.");
break;
case TypeCode.Perm:
sb.AppendLine("Drive region has been set permanently, but may be reset by the vendor if necessary.");
break;
}
sb.AppendLine($"Drive has {vendorResets} vendor resets available.");
sb.AppendLine($"Drive has {userControlledChanges} user controlled changes available.");
switch(decoded.RegionMask)
{
case 0xFF:
sb.AppendLine("Drive has no region set.");
break;
case 0xFE:
sb.AppendLine("Drive is set to region 1.");
break;
case 0xFD:
sb.AppendLine("Drive is set to region 2.");
break;
case 0xFB:
sb.AppendLine("Drive is set to region 3.");
break;
case 0xF7:
sb.AppendLine("Drive is set to region 4.");
break;
case 0xEF:
sb.AppendLine("Drive is set to region 5.");
break;
case 0xDF:
sb.AppendLine("Drive is set to region 6.");
break;
case 0xBF:
sb.AppendLine("Drive is set to region 7.");
break;
case 0x7F:
sb.AppendLine("Drive is set to region 8.");
break;
}
switch(decoded.RPCScheme)
{
case 0x00:
sb.AppendLine("The Logical Unit does not enforce Region Playback Controls (RPC).");
break;
case 0x01:
sb.AppendLine("The Logical Unit shall adhere to the specification and all requirements of the CSS license agreement concerning RPC.");
break;
default:
sb.AppendLine("The Logical Unit uses an unknown region enforcement scheme.");
break;
}
return sb.ToString();
}
public static string PrettifyRegionalPlaybackControlState(byte[] response) =>
PrettifyRegionalPlaybackControlState(DecodeRegionalPlaybackControlState(response));
public static string PrettifyLeadInCopyright(LeadInCopyright? cmi)
{
if(cmi == null)
@@ -245,5 +347,11 @@ namespace Aaru.Decoders.DVD
/// <summary>Byte 7 Reserved</summary>
public byte Reserved3;
}
enum TypeCode
{
None = 0, Set = 1, LastChance = 2,
Perm = 3
}
}
}