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Old 10-05-1999, 04:42 AM
matt connolly matt connolly is offline
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Join Date: Sep 1999
Location: Brisbane, Queensland, Australia
Posts: 163
Default Re: AVOption vs FireWire video

Thanks Mike. I assume that the advantages of the ABVB-SCSI host direct communication is then lost in a 3 slot mac because they will be on the same PCI bus.

I thought it was possible for QT4 to stream from a FireWire drive directly to a FireWire device, with only the control information coming from the CPU. AFAIK, with FireWire and USB there is only ever one bus master, and that is the CPU.

But then if it has to be on the screen, it surely is coming into main memory. Maybe they do it like the old Miro cards, and the QT window on the mac is just gray....??

Interesting times, heh?
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