public TopLevelHeaderObjectData(ReadOnlyMemory <byte> rawData)
        {
            RawData = rawData;
            var count   = BinaryPrimitives.ReadInt32LittleEndian(RawData.Span);
            var mem     = RawData.Slice(6);
            var objects = new ASFObject[count];

            for (int i = 0; i < count; i++)
            {
                var(obj, nxt) = ASFObject.ReadFromMemory(mem);
                objects[i]    = obj;
                mem           = nxt;
            }
            Objects = objects;
        }