void ASF::File::FilePrivate::HeaderExtensionObject::parse(ASF::File *file, unsigned int /*size*/)
{
file->d->headerExtensionObject = this;
file->seek(18, File::Current);
long long dataSize = readDWORD(file);
long long dataPos = 0;
while(dataPos < dataSize) {
ByteVector guid = file->readBlock(16);
if(guid.size() != 16) {
file->setValid(false);
break;
}
bool ok;
long long size = readQWORD(file, &ok);
if(!ok) {
file->setValid(false);
break;
}
BaseObject *obj;
if(guid == metadataGuid) {
obj = new MetadataObject();
}
else if(guid == metadataLibraryGuid) {
obj = new MetadataLibraryObject();
}
else {
obj = new UnknownObject(guid);
}
obj->parse(file, (unsigned int)size);
objects.append(obj);
dataPos += size;
}
}
void
ASF::File::HeaderExtensionObject::parse(ASF::File *file, uint /*size*/)
{
file->d->headerExtensionObject = this;
file->seek(18, File::Current);
long long dataSize = file->readDWORD();
long long dataPos = 0;
while(dataPos < dataSize) {
ByteVector guid = file->readBlock(16);
long long size = file->readQWORD();
BaseObject *obj;
if(guid == metadataGuid) {
obj = new MetadataObject();
}
else if(guid == metadataLibraryGuid) {
obj = new MetadataLibraryObject();
}
else {
obj = new UnknownObject(guid);
}
obj->parse(file, size);
objects.append(obj);
dataPos += size;
}
}
void ASF::File::read(bool /*readProperties*/, Properties::ReadStyle /*propertiesStyle*/)
{
if(!isValid())
return;
ByteVector guid = readBlock(16);
if(guid != headerGuid) {
debug("ASF: Not an ASF file.");
return;
}
d->tag = new ASF::Tag();
d->properties = new ASF::Properties();
d->size = readQWORD();
int numObjects = readDWORD();
seek(2, Current);
for(int i = 0; i < numObjects; i++) {
ByteVector guid = readBlock(16);
long size = (long)readQWORD();
BaseObject *obj;
if(guid == filePropertiesGuid) {
obj = new FilePropertiesObject();
}
else if(guid == streamPropertiesGuid) {
obj = new StreamPropertiesObject();
}
else if(guid == contentDescriptionGuid) {
obj = new ContentDescriptionObject();
}
else if(guid == extendedContentDescriptionGuid) {
obj = new ExtendedContentDescriptionObject();
}
else if(guid == headerExtensionGuid) {
obj = new HeaderExtensionObject();
}
else {
obj = new UnknownObject(guid);
}
obj->parse(this, size);
d->objects.append(obj);
}
}