[mythtv-users] Video studder XvMC w/OSD

Richard Shaw hobbes1069 at gmail.com
Mon Mar 31 21:10:37 UTC 2008


On Mon, Mar 31, 2008 at 1:46 PM, Calvin Harrigan
<charrig_mythtv at bellsouth.net> wrote:
[snip]
>  > Seems like there are lots of performance problems with HD on 0.21
>  > Hmmm... Maybe I should postpone building that dedicated Myth system
>  > until this issue gets solved.
>  >
>
>  I cannot cosign on that.  I run HD on an XP 1800+ processor frontend
>  using XVMC that scales HD down to SD.  It's able to stream the data over
>  the network and play it fine.  There is a slight hiccup when the stream
>  first starts but that last for like 2 seconds and then it's fine after
>  that.  Best part is that I only have to use XVMC for HD content, 0.21
>  allow me to set it to automatically switch decoders depending on source
>  resolution.

The biggest factor I've discovered (both on the list and from personal
experience) is display resolution. As I've said on a previous post, my
system is a Sempron 64 (running F8/x86_64) 3000+ (1.8GHz) and it is
barely able to play HD content at 720x480. I have problems using the
EPG 720p (slow to respond to remote) and I can only use up to the
Linear deinterlacer for 1080i content.

In contrast, my desktop Althlon 3000+ using Mplayer can not playback
720p content at full resolution.

Richard


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