String ASF::Attribute::parse(ASF::File &f, int kind)
{
uint size, nameLength;
String name;
d->pictureValue = Picture::fromInvalid();
// extended content descriptor
if(kind == 0) {
nameLength = f.readWORD();
name = f.readString(nameLength);
d->type = ASF::Attribute::AttributeTypes(f.readWORD());
size = f.readWORD();
}
// metadata & metadata library
else {
int temp = f.readWORD();
// metadata library
if(kind == 2) {
d->language = temp;
}
d->stream = f.readWORD();
nameLength = f.readWORD();
d->type = ASF::Attribute::AttributeTypes(f.readWORD());
size = f.readDWORD();
name = f.readString(nameLength);
}
if(kind != 2 && size > 65535) {
debug("ASF::Attribute::parse() -- Value larger than 64kB");
}
switch(d->type) {
case WordType:
d->shortValue = f.readWORD();
break;
case BoolType:
if(kind == 0) {
d->boolValue = f.readDWORD() == 1;
}
else {
d->boolValue = f.readWORD() == 1;
}
break;
case DWordType:
d->intValue = f.readDWORD();
break;
case QWordType:
d->longLongValue = f.readQWORD();
break;
case UnicodeType:
d->stringValue = f.readString(size);
break;
case BytesType:
case GuidType:
d->byteVectorValue = f.readBlock(size);
break;
}
if(d->type == BytesType && name == "WM/Picture") {
d->pictureValue.parse(d->byteVectorValue);
if(d->pictureValue.isValid()) {
d->byteVectorValue.clear();
}
}
return name;
}
String
ASF::Attribute::parse(ASF::File &f, int kind)
{
int size, nameLength;
String name;
// extended content descriptor
if(kind == 0) {
nameLength = f.readWORD();
name = f.readString(nameLength);
d->type = ASF::Attribute::AttributeTypes(f.readWORD());
size = f.readWORD();
}
// metadata & metadata library
else {
int temp = f.readWORD();
// metadata library
if(kind == 2) {
d->language = temp;
}
d->stream = f.readWORD();
nameLength = f.readWORD();
d->type = ASF::Attribute::AttributeTypes(f.readWORD());
size = f.readDWORD();
name = f.readString(nameLength);
}
switch(d->type) {
case WordType:
d->shortValue = f.readWORD();
break;
case BoolType:
if(kind == 0) {
d->boolValue = f.readDWORD() == 1;
}
else {
d->boolValue = f.readWORD() == 1;
}
break;
case DWordType:
d->intValue = f.readDWORD();
break;
case QWordType:
d->longLongValue = f.readQWORD();
break;
case UnicodeType:
d->stringValue = f.readString(size);
break;
case BytesType:
case GuidType:
d->byteVectorValue = f.readBlock(size);
break;
}
return name;
}