On Thursday 17 February 2005 13:57, [EMAIL PROTECTED] wrote: > On Thu, 17 Feb 2005, Joseph A. Caputo wrote: > > The LML33 is a hardware MJPEG capture card, right? Depsite doing some > > Yes > > > > encoding in hardware, they take a surprising amount of processing > > from > > the host computer, especially if your capture parameters are not > > The LML33 uses almost no cpu time. The bottleneck is disk access.
Ah. Well, if I/O is your bottleneck, then an Air2PC might not be any better; I don't know what the throughput reqs are for HDTV. Sure you don't need a faster disk/controller? Are you using DMA? > > The CPU requirements for capturing with an Air2PC card, OTOH, > > are practically zero, since the stream is already encoded as MPEG2. > > However, if you receive any HD channels you will not be able to play > > them back on that machine without hardware assistance (like an MPEG2 > > decoder, or at least a video card that does XvMC). > > What would you recomend? For decoding HDTV? Either a fast (~3 GHz) processor, or hardware-assisted decoding. Right now, the best option for that would be (I think) a new-ish Nvidia card that does XvMC, like the GeForce4 MX or GeForce FX5200. Or you could transcode it down to a lower resolution, but that would mean you couldn't watch anything until hours later when the transcoding was done. -JAC _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
