SjByteVector APE_Footer::renderHeader() const
{
if (!m_headerPresent)
return SjByteVector();
return render(true);
}
SjByteVector ID3v2_Tag::render()
{
// We need to render the "tag data" first so that we have to correct size to
// render in the tag's 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's header or footer.
SjByteVector tagData;
// TODO: Render the extended header.
// Loop through the frames rendering them and adding them to the tagData.
//for(FrameList::Iterator it = d->frameList.begin(); it != d->frameList.end(); it++)
for ( ID3v2_FrameList::Node *node = m_frameList.GetFirst(); node; node = node->GetNext() )
{
ID3v2_Frame* it = node->GetData();
if(!it->header()->tagAlterPreservation())
tagData.append(it->render());
}
// Compute the amount of padding, and append that to tagData.
SjUint paddingSize = 0;
SjUint originalSize = m_header.tagSize();
if(tagData.size() < originalSize)
paddingSize = originalSize - tagData.size();
else
paddingSize = 1024;
tagData.append(SjByteVector(paddingSize, char(0)));
// Set the tag size.
m_header.setTagSize(tagData.size());
// TODO: This should eventually include d->footer->render().
return m_header.render() + tagData;
}
SjByteVector APE_Item::render() const
{
SjByteVector data;
SjUint flags = ((m_readOnly) ? 1 : 0) | (m_type << 1);
SjByteVector value;
if(isEmpty())
return data;
if(m_type != APE_ItemBinary)
{
int i, iCount = m_stringList.GetCount();
if( iCount>0 )
{
value.appendString(m_stringList.Item(0), SJ_UTF8);
for( i = 1; i < iCount; i++ )
{
value.append((unsigned char)'\0');
value.appendString(m_stringList.Item(i), SJ_UTF8);
}
}
// there should be no need to set back m_binary
}
else
{
value.append(m_binary);
}
data.append(SjByteVector::fromUint(value.size(), false));
data.append(SjByteVector::fromUint(flags, false));
data.appendString(m_key, SJ_UTF8);
data.append(SjByteVector((unsigned char)'\0'));
data.append(value);
return data;
}
