ByteVector APE::Item::render() const
{
ByteVector data;
TagLib::uint flags = ((d->readOnly) ? 1 : 0) | (d->type << 1);
ByteVector value;
if(isEmpty())
return data;
if(d->type == Text) {
StringList::ConstIterator it = d->text.begin();
value.append(it->data(String::UTF8));
it++;
for(; it != d->text.end(); ++it) {
value.append('\0');
value.append(it->data(String::UTF8));
}
d->value = value;
}
else
value.append(d->value);
data.append(ByteVector::fromUInt(value.size(), false));
data.append(ByteVector::fromUInt(flags, false));
data.append(d->key.data(String::UTF8));
data.append(ByteVector('\0'));
data.append(value);
return data;
}
ByteVector
MP4::Tag::renderText(const ByteVector &name, const MP4::Item &item, int flags) const
{
ByteVectorList data;
StringList value = item.toStringList();
for(StringList::ConstIterator it = value.begin(); it != value.end(); ++it) {
data.append(it->data(String::UTF8));
}
return renderData(name, flags, data);
}
int APE::Item::size() const
{
// SFB: Why is d->key.size() used when size() returns the length in UniChars and not UTF-8?
int result = 8 + d->key.size() /* d->key.data(String::UTF8).size() */ + 1;
switch (d->type) {
case Text:
if(d->text.size()) {
StringList::ConstIterator it = d->text.begin();
result += it->data(String::UTF8).size();
it++;
for(; it != d->text.end(); ++it)
result += 1 + it->data(String::UTF8).size();
}
break;
case Binary:
case Locator:
result += d->value.size();
break;
}
return result;
}
void ID3v2::Tag::removeUnsupportedProperties(const StringList &properties)
{
for(StringList::ConstIterator it = properties.begin(); it != properties.end(); ++it){
if(it->startsWith("UNKNOWN/")) {
String frameID = it->substr(String("UNKNOWN/").size());
if(frameID.size() != 4)
continue; // invalid specification
ByteVector id = frameID.data(String::Latin1);
// delete all unknown frames of given type
FrameList l = frameList(id);
for(FrameList::ConstIterator fit = l.begin(); fit != l.end(); fit++)
if (dynamic_cast<const UnknownFrame *>(*fit) != 0)
removeFrame(*fit);
}
else if(it->size() == 4){
ByteVector id = it->data(String::Latin1);
removeFrames(id);
}
else {
ByteVector id = it->substr(0,4).data(String::Latin1);
if(it->size() <= 5)
continue; // invalid specification
String description = it->substr(5);
Frame *frame = 0;
if(id == "TXXX")
frame = UserTextIdentificationFrame::find(this, description);
else if(id == "WXXX")
frame = UserUrlLinkFrame::find(this, description);
else if(id == "COMM")
frame = CommentsFrame::findByDescription(this, description);
else if(id == "USLT")
frame = UnsynchronizedLyricsFrame::findByDescription(this, description);
else if(id == "UFID")
frame = UniqueFileIdentifierFrame::findByOwner(this, description);
if(frame)
removeFrame(frame);
}
}
}
ByteVector
MP4::Tag::renderFreeForm(const String &name, const MP4::Item &item) const
{
StringList header = StringList::split(name, ":");
if(header.size() != 3) {
debug("MP4: Invalid free-form item name \"" + name + "\"");
return ByteVector();
}
ByteVector data;
data.append(renderAtom("mean", ByteVector::fromUInt(0) + header[1].data(String::UTF8)));
data.append(renderAtom("name", ByteVector::fromUInt(0) + header[2].data(String::UTF8)));
AtomDataType type = item.atomDataType();
if(type == TypeUndefined) {
if(!item.toStringList().isEmpty()) {
type = TypeUTF8;
}
else {
type = TypeImplicit;
}
}
if(type == TypeUTF8) {
StringList value = item.toStringList();
for(StringList::ConstIterator it = value.begin(); it != value.end(); ++it) {
data.append(renderAtom("data", ByteVector::fromUInt(type) + ByteVector(4, '\0') + it->data(String::UTF8)));
}
}
else {
ByteVectorList value = item.toByteVectorList();
for(ByteVectorList::ConstIterator it = value.begin(); it != value.end(); ++it) {
data.append(renderAtom("data", ByteVector::fromUInt(type) + ByteVector(4, '\0') + *it));
}
}
return renderAtom("----", data);
}