public void Parse(ByteVector data)
{
if (data != null)
{
// 11 buffer is the minimum size for an APE item
if (data.Count < 11)
{
TagLibDebugger.Debug("APE.Item.Parse() -- no data in item");
return;
}
uint value_length = data.Mid(0, 4).ToUInt(false);
uint flags = data.Mid(4, 4).ToUInt(false);
int pos = data.Find(new ByteVector(1), 8);
key = data.Mid(8, pos - 8).ToString(StringType.UTF8);
value = data.Mid(pos + 1, (int)value_length);
ReadOnly = (flags & 1) == 1;
Type = (ApeItemType)((flags >> 1) & 3);
if (Type != ApeItemType.Binary)
{
text.Clear();
text = new StringCollection(ByteVectorCollection.Split(value, (byte)0), StringType.UTF8);
}
}
else
{
throw new ArgumentNullException("data");
}
}
private void ParseUniqueFields(ByteVector data)
{
ByteVectorCollection fields = ByteVectorCollection.Split(data, (byte)0);
if (fields.Count != 2)
{
return;
}
owner = fields[0].ToString(StringType.Latin1);
identifier = fields[1];
}
private void ParsePrivateFields(ByteVector data)
{
if (data.Count < 1)
{
TagLibDebugger.Debug("A private frame must contain at least 1 byte.");
return;
}
ByteVectorCollection list = ByteVectorCollection.Split(data, TextDelimiter(StringType.Latin1), 1, 2);
if (list.Count == 2)
{
owner = list[0].ToString(StringType.Latin1);
data = list[1];
}
}
private void ParseTextIdentifierFields(ByteVector data)
{
// read the string data type (the first byte of the field data)
textEncoding = (StringType)data[0];
// split the byte numbers into chunks based on the string type (two byte delimiter
// for unicode encodings)
int byteAlign = textEncoding == StringType.Latin1 || textEncoding == StringType.UTF8 ? 1 : 2;
ByteVectorCollection list = ByteVectorCollection.Split(data.Mid(1), TextDelimiter(textEncoding), byteAlign);
fieldList.Clear();
// append those split values to the text and make sure that the new string'field
// type is the same specified for this frame
foreach (ByteVector vector in list)
{
fieldList.Add(vector.ToString(textEncoding));
}
}
private void ParseCommentsFields(ByteVector data)
{
if (data.Count < 5)
{
TagLibDebugger.Debug("A comment frame must contain at least 5 bytes.");
return;
}
textEncoding = (StringType)data[0];
language = data.Mid(1, 3);
int byte_align = textEncoding == StringType.Latin1 || textEncoding == StringType.UTF8 ? 1 : 2;
ByteVectorCollection l = ByteVectorCollection.Split(data.Mid(4), TextDelimiter(textEncoding), byte_align, 2);
if (l.Count == 2)
{
if (l[0].Data != null && l[0].Data.Count > 0)
{
description = l[0].ToString(textEncoding);
}
else
{
description = string.Empty;
}
if (l[1].Data != null && l[1].Data.Count > 0)
{
text = l[1].ToString(textEncoding);
}
else
{
text = string.Empty;
}
}
}