[ale] [ot] pvr using mythtv

Calvin Harrigan charrig at earthlink.net
Mon Jan 13 21:56:56 EST 2003


The svideo port on many modern video cards allows you to play games,
dvds and the like on your tv.  These ports generally aren't used to do
web surfing (though you can with big fonts), word processing and the
like.  The output quality of my GF2 is quite good on my sony 27".  I run
it at 800x600 32 bit depth.  Without a monitor connected to my video
cards defaults to the svideo port if there is a tv connected (75ohm)
load.

As far as mythtv goes, it uses the capture card to capture the video
stream and record it, compressed in a juiced up mjpeg format, to the
hard drive where it can later be played.  Even for live tv it's first
recorded to disk before playback.  This gives you the ability to pause
live tv, rewind, and fastforward if you are behind.

Mythtv runs fullscreen, there are no windows or toolbars etc.  it takes
over the screen, even if you run it on a regular computer monitor.


Calvin...

On Mon, 2003-01-13 at 13:45, John Wells wrote:
> Geoffrey,
> 
> Haven't tried mine yet as the only s-video capable tv is downstairs and
> I'm just getting going on this pvr thing, but afaik these cards (in my
> case, nvidia geforce 2) do the same as your ati, and you can use it to
> output tv as well.  I assume it's tv run on top of X...almost as if
> running xawtv on your machine and displaying on your tv...but as I say,
> haven't tried it yet.  I'm assuming they use something to make the display
> larger and fullscreen.
> 
> Calvin can probably provide more input.
> 
> John
> 
> 
> Geoffrey said:
> > Is that the purpose of the svideo on those cards?  My ati card has an
> > svideo out, but it's used like another monitor device, in that I could
> > stick a tv on the end of it use something like xinerama to send X output
> >  to it.
> 
> 
> 
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