/// <summary>
/// Creates a deep copy of the current instance.
/// </summary>
/// <returns>
/// A new <see cref="Frame" /> object identical to the
/// current instance.
/// </returns>
/// <remarks>
/// This method is implemented by rendering the current
/// instance as an ID3v2.4 frame and using <see
/// cref="FrameFactory.CreateFrame" /> to create a new
/// frame. As such, this method should be overridden by
/// child classes.
/// </remarks>
public virtual Frame Clone()
{
int index = 0;
return(FrameFactory.CreateFrame(Render(4), null, ref index,
4, false));
}
protected void Parse(ByteVector data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
bool fullTagUnsynch = (header.MajorVersion < 4) && ((header.Flags & HeaderFlags.Unsynchronisation) != 0);
if (fullTagUnsynch)
{
SynchData.ResynchByteVector(data);
}
int frame_data_position = 0;
int frame_data_length = data.Count;
if ((header.Flags & HeaderFlags.ExtendedHeader) != 0)
{
extended_header = new ExtendedHeader(data, header.MajorVersion);
if (extended_header.Size <= data.Count)
{
frame_data_position += (int)extended_header.Size;
frame_data_length -= (int)extended_header.Size;
}
}
TextInformationFrame tdrc = null;
TextInformationFrame tyer = null;
TextInformationFrame tdat = null;
TextInformationFrame time = null;
while (frame_data_position < frame_data_length - FrameHeader.Size(header.MajorVersion))
{
if (data[frame_data_position] == 0)
{
break;
}
Frame frame = null;
try
{
frame = FrameFactory.CreateFrame(data, ref frame_data_position, header.MajorVersion, fullTagUnsynch);
}
catch (NotImplementedException)
{
continue;
}
catch (CorruptFileException)
{
continue;
}
if (frame == null)
{
break;
}
if (frame.Size == 0)
{
continue;
}
AddFrame(frame);
if (header.MajorVersion == 4)
{
continue;
}
if (tdrc == null && frame.FrameId.Equals(FrameType.TDRC))
{
tdrc = frame as TextInformationFrame;
}
else if (tyer == null && frame.FrameId.Equals(FrameType.TYER))
{
tyer = frame as TextInformationFrame;
}
else if (tdat == null && frame.FrameId.Equals(FrameType.TDAT))
{
tdat = frame as TextInformationFrame;
}
else if (time == null && frame.FrameId.Equals(FrameType.TIME))
{
time = frame as TextInformationFrame;
}
}
if (tdrc == null || tdat == null || tdrc.ToString().Length > 4)
{
return;
}
string year = tdrc.ToString();
if (year.Length != 4)
{
return;
}
StringBuilder tdrc_text = new StringBuilder();
tdrc_text.Append(year);
if (tdat != null)
{
string tdat_text = tdat.ToString();
if (tdat_text.Length == 4)
{
tdrc_text.Append("-").Append(tdat_text, 0, 2).Append("-").Append(tdat_text, 2, 2);
if (time != null)
{
string time_text = time.ToString();
if (time_text.Length == 4)
{
tdrc_text.Append("T").Append(time_text, 0, 2).Append(":").Append(time_text, 2, 2);
}
RemoveFrames(FrameType.TIME);
}
}
RemoveFrames(FrameType.TDAT);
}
tdrc.Text = new string[]
{
tdrc_text.ToString()
};
}