[mythtv-users] Hardware resrouces required for s/w encode

[Michael PARKER]

Nick,

> Have you already considered and ruled out the Huappauge HVR-1300?
> 
> This card has onboard DVB-T and hardware MPEG-2 analog capture, so
> unless you are seriously thinking of using satellite in the future, it
> may be a less expensive alternative. One other thing to bear mind is
> that the HVR-4000 (and possibly the -1300 with its analog and DVB-T)
> has mutually exclusive digital tuners, so that it can't simultaneously
> record DVB-T and DVB-S/S2.

Good point - many thanks. My intention was to give the MythBox as much functionality as possible at
time of build, precluding the possibility of not being able to buy PCI/PCIex1/?? tuner cards in the
future, having a motherboard without the necessary slots etc. and being stuck with a non-upgradeable
box.

Do you have any views on the ability of a modern quad core like the X4 605e to cope with the
overhead of encoding the incoming analog stream into RTjpeg/MPEG-4? 

Assuming that the codec(?) is multi-threaded, it should be a no brainer. My concern arises if the
codec is only able to run on a single core and one 2.3GHz core isn't man enough.

Cheers,

Mike

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org 
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Nick Morrott
> Sent: Thursday, February 04, 2010 2:09 PM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Hardware resrouces required for s/w encode
> 
> On 4 February 2010 11:43, Michael PARKER 
> <michael.parker at st.com> wrote:
> >> The Wiki is about analog signals. DVB as the nam says is 
> already digital
> >> and is encoded already.
> >
> > It's the s/w encode of the analog/composite/S-video input 
> I'm concerned
> > about. I'm happy that the DVB doesn't require h/w or s/w encode.
> >
> > Quoting my original mail to Garry:
> >
> > ---
> >
> > Having just spoken with Hauppauge UK, it appears that the
> > analogue/composite/S-video input of the HVR-4000 card 
> doesn't have hardware
> > encode. The DVB-T/S/S2 inputs don't need a h/w encoder 
> (being already in
> > either MPEG-2 or h.264), so the ana./comp./S-video input 
> has to make do with
> > s/w encode.
> >
> > For the time being, the majority of my recording will be 
> done from a cable
> > STB so I'll be using the composite input a lot. I may, at a 
> late date,
> > switch to DVB-T/S/S2 and dump the cable TV (which I only 
> need for a few,
> > non-free-to-air channels).
> 
> Have you already considered and ruled out the Huappauge HVR-1300?
> 
> This card has onboard DVB-T and hardware MPEG-2 analog capture, so
> unless you are seriously thinking of using satellite in the future, it
> may be a less expensive alternative. One other thing to bear mind is
> that the HVR-4000 (and possibly the -1300 with its analog and DVB-T)
> has mutually exclusive digital tuners, so that it can't simultaneously
> record DVB-T and DVB-S/S2.
> 
> Cheers,
> Nick
> 
> -- 
> Nick Morrott
> 
> MythTV Official wiki: http://mythtv.org/wiki/
> MythTV users list archive: 
> http://www.gossamer-threads.com/lists/mythtv/users
> 
> "An investment in knowledge always pays the best interest." - 
> Benjamin Franklin
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