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namespace TagLib.Mpeg4
{
public class AppleDataBox : FullBox
{
// This shows the type of data stored in the box.
public enum FlagTypes
{
ContainsText = 0x01,
ContainsData = 0x00,
ForTempo = 0x15,
ContainsJpegData = 0x0D,
ContainsPngData = 0x0E
}
//////////////////////////////////////////////////////////////////////////
// public methods
//////////////////////////////////////////////////////////////////////////
public AppleDataBox (BoxHeader header, Box parent) : base (header, parent)
{
// Ensure that the data is loaded before the file is closed.
LoadData ();
}
// Make a data box from the given data and flags.
public AppleDataBox (ByteVector data, uint flags, Box parent) : base ("data", flags, parent)
{
Data = data;
}
// Make a data box from the given data and flags.
public AppleDataBox (ByteVector data, uint flags) : this (data, flags, null)
{
}
// Render the box. It starts with four reserved bytes.
public override ByteVector Render ()
{
return Render (new ByteVector (4));
}
//////////////////////////////////////////////////////////////////////////
// public methods
//////////////////////////////////////////////////////////////////////////
// If the flag type is ContainsText, then the data can be read as a UTF8
// string. We can also store a UTF8 string as text if we set the flags to
// show that.
public string Text
{
get {return ((Flags & (int) FlagTypes.ContainsText) != 0) ? Data.ToString (StringType.UTF8) : null;}
set
{
Flags = (int) FlagTypes.ContainsText;
Data = ByteVector.FromString (value, StringType.UTF8);
}
}
// Move the position and length to account for the reserved space.
protected override long DataPosition {get {return base.DataPosition + 4;}}
protected override ulong DataSize {get {return base.DataSize - 4;}}
}
}
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