public ByteVector Render()
{
// We need to render the "tag data" first so that we have to correct size to
// render in the tag'field header. The "tag data" -- everything that is included
// in ID3v2::Header::tagSize() -- includes the extended header, frames and
// padding, but does not include the tag'field header or footer.
ByteVector tagData = new ByteVector();
// TODO: Render the extended header.
header.ExtendedHeader = false;
// Loop through the frames rendering them and adding them to the tagData.
foreach (Id3v2Frame frame in frameList)
{
if (!frame.Header.TagAlterPreservation)
{
tagData.Add(frame.Render());
}
}
// Compute the amount of padding, and append that to tagData.
uint padding_size = 0;
uint original_size = header.TagSize;
if (!header.FooterPresent)
{
if (tagData.Count < original_size)
{
padding_size = (uint)(original_size - tagData.Count);
}
else
{
padding_size = 1024;
}
tagData.Add(new ByteVector((int)padding_size));
}
// Set the tag size.
header.TagSize = (uint)tagData.Count;
if (header.FooterPresent)
{
footer = new Id3v2Footer(header);
return(header.Render() + tagData + footer.Render());
}
return(header.Render() + tagData);
}
