[mythtv-users] Recorded material stutters, live TV is perfect. Why?

[Mark Knecht]

On Fri, May 2, 2008 at 10:38 AM, Michael T. Dean
<mtdean at thirdcontact.com> wrote:
> On 05/02/2008 01:16 PM, Brian Wood wrote:
>  > On May 2, 2008, at 11:05 AM, Mark Boyum wrote:
>  >
>  >> You haven't indicated what type of material you are recording /
>  >> playing.  Assuming it is SD, I would say that even at 20% your
>  >> system should be able to perform decent playback.  I would suspect
>  >> the problem is related to using a wireless network.  Just to test,
>  >> try connecting that frontend via Cat5.
>  >>
>  >>
>  >
>  > Following this thread I'd missed that you were using a wireless
>  > network. I agree that is almost certainly at least part of your problem.
>
>  And the 20% CPU is probably due to the rebuffering which is due to the
>  stuttering which is due to the data transfer issues.  I.e. the jump from
>  12% to 20% CPU is not causing the issue, but a symptom of it.  That's
>  also why it doesn't stabilize after reducing the speed back to real-time
>  (because it's still stuttering...).
>
>  Mike
>

Ah, interesting thought. I was going a different direction with it. I
noticed that the jump to 20% happens even when I slow down playback
first. I was thinking that whatever the software component is that
does the building of frames for different speeds might need updates in
Gentoo. Maybe I'm using the wrong flags. Is that software part of Myth
proper or is it a library that Myth calls like fftw or something?

Thanks,
Mark