[TriLUG] mythtv ramblings and a questions about december mythtvpresentation
jdturner at nc.rr.com
Tue Mar 22 14:54:47 EST 2005
On Mar 22, 2005, at 2:45 PM, Tanner Lovelace wrote:
> On Tue, 22 Mar 2005 14:31:27 -0500, John Turner <jdturner at nc.rr.com>
>> One note from my research into HD-MythTV. The backend recorder can be
>> slow as it doesn't do anything but read/write to disks. The frontend
>> Myth box has to be BIG (I was reading Intel P4 2.5G+) because it has
>> do HDTV decoding in software. I have not tried any of this yet, but
>> you want to do HDTV it seems to require a very fast frontend machine.
> Assuming the encoding is done in hardware, or, if I recall correctly,
> signal is already in mpeg/mpeg2 format, then yes, you're correct. If
> you're not doing HDTV, though, and just doing normal stuff, perhaps
> with software encoding, then you do need a beefy backend. It all
> depends on where you want your major computations to be.
True. But I was only talking about HDTV recording. But the same can be
said for any of the hardware encoding cards (PVR-250, 500, etc). That
said most modern machines can decode MPEG2 streams, but HD streams
involve much more processing.
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