public unsafe object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
KStudioMetadataValueBuffer buffer = value as KStudioMetadataValueBuffer;
StringBuilder sb = new StringBuilder();
if (buffer != null)
{
uint size;
GCHandle handle;
buffer.AccessUnderlyingDataBuffer(out size, out handle);
IntPtr ptr = handle.AddrOfPinnedObject();
byte * p = (byte *)ptr.ToPointer();
for (uint i = 0; i < size; ++i)
{
sb.Append(p[i].ToString("X2", CultureInfo.InvariantCulture));
sb.Append(" ");
}
}
else
{
KStudioInvalidMetadataValue invalid = value as KStudioInvalidMetadataValue;
if (invalid != null)
{
foreach (byte b in invalid.Data)
{
sb.Append(b.ToString("X2", CultureInfo.InvariantCulture));
sb.Append(" ");
}
}
}
value = sb.ToString();
return(value);
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
string str = value as string;
value = null;
if (str != null)
{
str = str + "\n";
byte[] temp = new byte[str.Length];
int i = 0;
char?firstByte = null;
foreach (char ch in str)
{
char ch2 = Char.ToLowerInvariant(ch);
if (Char.IsDigit(ch2) || (('a' <= ch2) && ('f' >= ch2)))
{
if (firstByte.HasValue)
{
byte b;
if (byte.TryParse(firstByte.Value.ToString() + ch2, NumberStyles.AllowHexSpecifier, null, out b))
{
temp[i] = b;
++i;
firstByte = null;
}
}
else
{
firstByte = ch;
}
}
else
{
if (firstByte.HasValue)
{
byte b;
if (byte.TryParse(firstByte.Value.ToString(), NumberStyles.AllowHexSpecifier, null, out b))
{
temp[i] = b;
++i;
firstByte = null;
}
}
}
}
if (i > 0)
{
byte[] final = new byte[i];
Array.Copy(temp, final, i);
value = new KStudioMetadataValueBuffer(final);
}
}
if (value == null)
{
// no empty data
value = new KStudioMetadataValueBuffer(new byte[] { 0 });
}
return(value);
}