fGhostStream
if (fGhostStream == NULL) {
fGhostStream = new(std::nothrow) StreamBase(fSource, fSourceLock,
if (fGhostStream == NULL) {
ret = fGhostStream->Open();
ret = fGhostStream->Init(fVirtualIndex);
ret = fGhostStream->Seek(flags, frame, time);
mutable StreamBase* fGhostStream;
delete fGhostStream;