public ArrayList ParseFile(InputFile file)
{
ArrayList atoms = new ArrayList();
UInt64 position = 0;
while (position < file.Length)
{
string type = GetAtomType(file, position);
Atom atom = null;
if (IsContainer(type))
{
atom = new ContainerAtom(type);
ParseContainer(file, position, (ContainerAtom)atom);
}
else if (IsAtom(type))
{
atom = new LeafAtom(type);
ParseAtom(file, position, atom);
}
else
{
throw new Exception("Invalid atom at pos 0x" + position.ToString("X16"));
}
atoms.Add(atom);
position += atom.TotalLength;
}
return atoms;
}
else
{
outFile.WriteUInt32(1);
outFile.WriteChars(container.Type.ToCharArray());
outFile.WriteUInt64(container.TotalLength);
}
foreach (var obj in container.Children)
{
if (obj is ContainerAtom)
{
SaveContainer(inFile, outFile, (ContainerAtom)obj);
}
else
{
SaveAtom(inFile, outFile, (LeafAtom)obj);
}
}
}
private void SaveAtom(InputFile inFile, OutputFile outFile, LeafAtom leaf)
{
if (leaf.HeaderLength == 8)
{
outFile.WriteUInt32((UInt32)leaf.TotalLength);
outFile.WriteChars(leaf.Type.ToCharArray());
}
else
{
outFile.WriteUInt32(1);
private void ParseContainer(InputFile file, ulong position, ContainerAtom container)
{
ParseAtom(file, position, container);
ArrayList atoms = new ArrayList();
UInt64 offset = container.HeaderLength;
while (offset < container.TotalLength)
{
string type = GetAtomType(file, position + offset);
Atom atom = null;
if (IsContainer(type))
{
atom = new ContainerAtom(type);
ParseContainer(file, position + offset, (ContainerAtom)atom);
}
else
{
atom = new LeafAtom(type);
ParseAtom(file, position + offset, atom);
}
container.Children.Add(atom);
offset += atom.TotalLength;
}
}