>From: Luis Sequeira <[EMAIL PROTECTED]>
I actually have a Miglia card that sits inside my B&W (upgraded to a G4 processor; this card seems to need at least a G4). It's ok, but: can not do DivX or any version of MPEG4 compression (the processor is not powerful enough; have to settle with M-JPEG compression) and cannot be used with a mac except a PowerMac (since it is a PCI card).
I have just received my QuickSilver 733MHz, if I bought a PCI card for that, would that be enough power to encode stuff ?
I presume it has to be done in real time as the incoming feed won't pause...
Larry
Yes, it has to be done in real time.
Yes, you can encode stuff, at least in M-JPEG (like I said, that's what I use in my G4-upgraded B&W, which has a slower processor (550MHz vs your 733) and probably slower bus too (100MHz vs your, I think, 133).
I use a quarter-screen resolution at full frame rate (25fps) and about medium quality. It scales reasonably well to view full screen. My only real complain is that audio gets out of sync after a while.
Not sure if it is because the processor isn't fast enough or a limitation of the codec or what.
I don't think you'd be able to do MPEG-4 or DivX, though.
For comparison, I sometimes convert the recorded material to DivX using my 1GHz TiBook and it tends to do it in about "real" time (I didn't measure it accurately). I also tried to encode MPEG-4 directly from a dv stream into the firewire port (using BTV Pro) and it failed miserably (dropping frames left and right and slowing the machine to a crawl), but I now think that may have to do with not having Quicktime Pro installed.
I did not have a DivX codec at the time, so I did not try that.
Luis Sequeira
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