[mythtv-users] More than one backend?
Rob Beard
rob at esdelle.co.uk
Mon Apr 16 20:03:57 UTC 2007
Mitch Gore wrote:
> Slave backends are basically a full blown backend except they share
> the database from the main backend. This allows you to add more
> tuners to the entire system. It works quite well.
>
> But i do notice some issues with you install/list of parts.
>
> The backend you described with the 1.8ghz will be fine for hardware
> encoding cards and digital TV recording. But putting a frame grabber
> on the system is going to really tax it if its doing other things such
> as commflagger, transcoding or recording multiple shows. I dont
> understand why you really want this?
Well I was thinking that if I had a BT878 card in the front end PC I
could run my Playstation 2 through it (and get rid of a AV switch box at
the same time). If it's going to use too much CPU power though then
I'll leave it out the equation and stick with the switch box.
> I am not familar with this Adaptec card but before you buy make sure
> it is supported on linux. The PVR-150,350,500 are by far the most
> common tuners and therefor have much more support.
>
The Adaptec card is a VideOh DVD Media Center PCI card. From what I
understand it has a similar chipset to the PVR-150/250 cards and is
compatible with ivtv. I've managed to get the card working under Linux
and it will capture into MPEG2 format at varying bitrates.
> Also an Athlong 2000+ pry wont handle HDTV/DT shows. Plan on atleast
> 3.ghz the more the better. You may get by with the 2000+ if you use
> XvMC with a Nvidia card but it may have some frame bufer problems.
>
Ahh I see. I don't be playing any HDTV media just yet, just standard
definition PAL stuff recorded off digital terrestrial TV and free to air
digital satellite. I do have a Celeron 3.2 lying around too, I guess if
the Athlon 2000+ isn't quick enough I could use the Celeron 3.2 instead.
Thanks for the advice guys. It gives me more to chew on. I thought I'd
ask as I'm thinking of getting a satellite & terrestrial connection to
the loft where the master backend will go (as to save space and keep the
other half happy).
Cheers
Rob
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