void
MP4::Tag::parseFreeForm(const MP4::Atom *atom)
{
AtomDataList data = parseData2(atom, -1, true);
if(data.size() > 2) {
String name = "----:" + String(data[0].data, String::UTF8) + ':' + String(data[1].data, String::UTF8);
AtomDataType type = data[2].type;
for(uint i = 2; i < data.size(); i++) {
if(data[i].type != type) {
debug("MP4: We currently don't support values with multiple types");
break;
}
}
if(type == TypeUTF8) {
StringList value;
for(uint i = 2; i < data.size(); i++) {
value.append(String(data[i].data, String::UTF8));
}
Item item(value);
item.setAtomDataType(type);
addItem(name, item);
}
else {
ByteVectorList value;
for(uint i = 2; i < data.size(); i++) {
value.append(data[i].data);
}
Item item(value);
item.setAtomDataType(type);
addItem(name, item);
}
}
}
MP4::AtomDataList MP4::Tag::parseData2(MP4::Atom *atom, TagLib::File *file, int expectedFlags, bool freeForm)
{
AtomDataList result;
ByteVector data = file->readBlock(atom->length - 8);
int i = 0;
unsigned int pos = 0;
while ( pos < data.size() ) {
const int length = static_cast<int> ( data.toUInt(pos) );
ByteVector name = data.mid(pos + 4, 4);
const int flags = static_cast<int> ( data.toUInt(pos + 8) );
if ( freeForm && (i < 2) ) {
if ( (i == 0) && (name != "mean") ) {
debug("MP4: Unexpected atom \"" + name + "\", expecting \"mean\"");
return result;
} else if ( (i == 1) && (name != "name") ) {
debug("MP4: Unexpected atom \"" + name + "\", expecting \"name\"");
return result;
}
result.append( AtomData( AtomDataType(flags), data.mid(pos + 12, length - 12) ) );
} else {
if ( name != "data" ) {
debug("MP4: Unexpected atom \"" + name + "\", expecting \"data\"");
return result;
}
if ( (expectedFlags == -1) || (flags == expectedFlags) ) {
result.append( AtomData( AtomDataType(flags), data.mid(pos + 16, length - 16) ) );
}
}
pos += length;
i++;
}
return result;
}
ByteVectorList
MP4::Tag::parseData(const MP4::Atom *atom, int expectedFlags, bool freeForm)
{
AtomDataList data = parseData2(atom, expectedFlags, freeForm);
ByteVectorList result;
for(uint i = 0; i < data.size(); i++) {
result.append(data[i].data);
}
return result;
}
ByteVectorList
MP4::Tag::parseData(const MP4::Atom *atom, int expectedFlags, bool freeForm)
{
AtomDataList data = parseData2(atom, expectedFlags, freeForm);
ByteVectorList result;
for(AtomDataList::ConstIterator it = data.begin(); it != data.end(); ++it) {
result.append(it->data);
}
return result;
}
void
MP4::Tag::parseFreeForm(const MP4::Atom *atom)
{
AtomDataList data = parseData2(atom, -1, true);
if(data.size() > 2) {
AtomDataList::ConstIterator itBegin = data.begin();
String name = "----:";
name += String((itBegin++)->data, String::UTF8); // data[0].data
name += ':';
name += String((itBegin++)->data, String::UTF8); // data[1].data
AtomDataType type = itBegin->type; // data[2].type
for(AtomDataList::ConstIterator it = itBegin; it != data.end(); ++it) {
if(it->type != type) {
debug("MP4: We currently don't support values with multiple types");
break;
}
}
if(type == TypeUTF8) {
StringList value;
for(AtomDataList::ConstIterator it = itBegin; it != data.end(); ++it) {
value.append(String(it->data, String::UTF8));
}
Item item(value);
item.setAtomDataType(type);
addItem(name, item);
}
else {
ByteVectorList value;
for(AtomDataList::ConstIterator it = itBegin; it != data.end(); ++it) {
value.append(it->data);
}
Item item(value);
item.setAtomDataType(type);
addItem(name, item);
}
}
}
