[mythtv-users] Raspberry Pi 3 frontend not quite getting there

[Peter Bennett]

On 10/13/2016 12:09 PM, Josh Rosenberg wrote:
> Hey, all. I have a Raspberry Pi 3 frontend that I'm tinkering with,
> and I can't quite get totally smooth playback on (American) football.
> The problem is most evident during downfield passes, or any other
> situation where the camera is panning. My current combined
> frontend/backend (a full 0.28 machine that I'd like to move out of the
> living room, with 8GB RAM, an NVIDIA video card that does great with
> VDPAU, etc.) has noticeably smoother playback that I've gotten used
> to.
>
> The current setup is wired ethernet, 384MB of RAM configured for
> video, the newest version of Raspbian with the MythTV Light 0.28
> packages installed as per the wiki, OpenMax Normal video profile
> (OpenMax High seemed worse), and no other frontend setup tweaks that I
> can remember.
>
> Some of the video is US HD cable recorded via an HDHomeRun Prime
> (about 6GB/hr MPEG2, and I do have the Pi MPEG2 license), and some of
> it is transcoded (mp4 container, H.264 video, I forget what audio
> codec, and about 1GB/hr). The problem is just as evident with the
> transcoded video as the raw video.
>
> Any suggestions? Or should I just ditch this and buy a ZBox on Ebay?
>
> Thanks,
> Josh
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Did you try all of the optimizations in the wiki, in particular the
section "System Performance"?

Also set GPU memory to 256. Setting it higher may be just taking memory
away from mythtv and causing problems.

https://www.mythtv.org/wiki/Raspberry_Pi

Peter