[mythtv-users] PVR-350 only records TV at MPEG-1 ??

Steve Adeff adeffs at gmail.com
Sat Oct 15 16:07:13 EDT 2005


On Saturday 15 October 2005 14:13, Niklas Brunlid wrote:
> On Sat, 15 Oct 2005 19:42:59 +0200, Matt SF <spore at psibercom.org> wrote:
> > wow I guess it pays to not only RTFM but RTFM very carefully :)
> > I spotted this old post in looking for ways to improve the image quality
> > of my PVR-350...
> >
> > http://www.gossamer-threads.com/lists/mythtv/users/112094
> >
> > note.. "NTSC format at 29.97fps: Full D1: 720x480, MPEG1: 352x240"
> >
> > Sort of begs the question, just what is the MPEG-2 on the board used for?
> > I guess just for putting your home video etc. into the S-video input.
> >
> > Am I to understand the PVR-350 takes the image from the TV tuner,
> > captures it at MPEG-1 and then converts it to MPEG-2 then outputs it?
>
> It probably means that it will only record in MPEG-1 up to 352x240 (which
> IIRC is the max res for MPEG-1, but I could bw wrong), but MPEG-2 up to
> 720x480.
>
> / Niklas

also, i believe mpeg-1 is better suited for low resolution encoding than 
mpeg-2, which is why it defaults to mpeg-1 for those lower resolutions.

Steve


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