[mythtv-users] Re: [mythtv] has anyone seen this yet?!?!

[Jason Schloer]

Having looked only very little at that code, I'll say I'd be willing to
take a look. That said, Isaac, how hard would it also be to write
(possibly using the XVMC extenstions)code to change the output
proportions. This is mostly to do with widescreen HDTVs. My Sony will
take sdtv signals and stretch and crop to get a full screen picture that
isn't too distorted. Once HDTV support is in there I'd like to use a
component cable to drive the TV, however when using a component cable I
lose those stretching options, but figure it may be possible to
implement them within Myth. Also, if I were to come up with something,
would it be something you'd likely add to Myth(assuming well
designed/written code), or would it need to be a patch? Thanks for the
response, and kudos on the project thus far. 


Jason Schloer


-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Isaac Richards
Sent: Monday, August 04, 2003 3:52 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] Re: [mythtv] has anyone seen this yet?!?!

On Monday 04 August 2003 03:39 pm, Jason Schloer wrote:
> Sign me up. I'd love to hear more about this card and its specs. I'd
> also love to hear about the video playback. What kind of machine/
video
> card is needed? Hope this catches you before you leave. If not, please
> write back to us when you get back. This is exactly what I've been
> waiting for.

Figure around a 2Ghz p4/xp for comfortable playback (without
deinterlacing, of 
course) of 1080i at full resolution -- I was seeing around 75-85% cpu or
so 
with my 1800+ when I was playing around with some hdtv demo clips last
month 
when I did the mpeg decoding optimizations..    Found a deficiency in
the 
nvidia Xv driver, while I was at it, in that X takes _lot_ of cpu to 
downscale video from that resolution to 800x600 or 640x480.  Displaying
at 
1920x1080 was fine, though =)

If someone wanted to hook up the (very preliminary) XvMC support code
that's 
in libavcodec to mythtv, that'd help out playback time on supported
cards.  
It'd require a bit of work, though.

Isaac
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