[mythtv-users] Frontend playback buffer

Eric Dalquist eric.dalquist at doit.wisc.edu
Tue Apr 22 01:10:56 UTC 2008

So after digging more on the lists I enabled playback logging and when 
running on the n network I saw a lot of dropped frames. It doesn't look 
like there is much more in the way of CPU usage but it may have been 
just enough more kernel time to cause problems.

When searching on video profiles for OS X I found this thread 
http://www.gossamer-threads.com/lists/mythtv/users/322994#322994 where 
someone kindly posted a link to an OS X build of .21 with MMX enabled 
which fixed all my problems and gives me quite a bit more spare CPU. As 
the link he provided may go away  in the future I can provide re-hosting 
of this build here: 

I tried doing a local build but I think I have some issues with some 
ports I have installed that I need to resolve first.


Eric Dalquist wrote:
> I'm using an OS X front end and an Ubuntu back end to record and watch 
> OTA HD content from a HDHomeRun. I'm using a Linksys WRT350N for 
> wireless and routing.
> If I run the network at 802.11G speeds everything works fine though I 
> have to be careful that nothing else is on the network when watching 
> shows as the HD stream uses 95% of the available wireless bandwidth. I 
> can transfer files to/from the back end at 2-3MBps via scp and other tools.
> If I run the network at 802.11N speeds playback in myth is very choppy. 
> Bandwidth is fine, file transfers run at 8-9MBps and doing a direct 
> stream from the HDHomeRun to VLC on the laptop is fine. The router isn't 
> showing any status errors and all other network traffic works as expected.
> I'm not quite sure what to try an do to resolve this. Are there any 
> front-end buffering options that I could try changing?
> I'm using the 0.21 release.
> Thank you,
> -Eric
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> From - Mon
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