[mythtv-users] Is Nvidia Shield the future for Mythtv Frontend??

James Abernathy jfabernathy at gmail.com
Wed Dec 26 17:04:00 UTC 2018

On 12/26/18 11:53 AM, Greg Oliver wrote:
> On Wed, Dec 26, 2018 at 10:30 AM James Abernathy 
> <jfabernathy at gmail.com <mailto:jfabernathy at gmail.com>> wrote:
>     On Dec 26, 2018, at 9:46 AM, glen <glenb at glenb.us
>     <mailto:glenb at glenb.us>> wrote:
>>     On Tue, 2018-12-25 at 22:16 -0500, James Abernathy wrote:
>>>     On 12/25/18 9:41 PM, glen wrote:
>>>>     On Tue, 2018-12-25 at 18:45 -0500, James Abernathy wrote:
>>>>>     While sitting around during the holidays watching TV, I
>>>>>     started thinking about how to improve my home media center. 
>>>>>     My backend is a powerful server with RAID so I’m covered
>>>>>     there.  My Frontends need some work though. It maybe my brain
>>>>>     going crazy, but I no longer think my Ivy Bridge i3 NUC is not
>>>>>     up to the task.  Too much tearing at the bottom of the screen
>>>>>     no matter what settings I use. This started as the kernels got
>>>>>     updated on Ubuntu 16.04 in prep for moving to 18.04. My guess
>>>>>     is improving the drivers for the new Intel chips they messed
>>>>>     up the old 3rd Core generation drivers.
>>>>>     Even my RP3 B+ has better video performance.  Since I use
>>>>>     FireTV in addition to Mythtv, I’m thinking of something like
>>>>>     the Nvidia Shield.  It can run all the apps that the FireTV
>>>>>     does and it plays games and runs mythtv frontend.
>>>>>     At $150, I can’t buy a more powerful PC than what I have. So
>>>>>     I’m thinking the Shield is right solution moving forward
>>>>>     without breaking the bank.
>>>>>     What do others think??
>>>>>     Jim A
>>>>     i have 2 shields i got for very low price. i agree to be able to have netflix, amazon, hbogo etc plus mythfrontend
>>>>     is a big advantage. mythfrontend runs pretty well. i have a little trouble with h264 using mediacodec so i use ffmpeg
>>>>     codec for everything. also for me only ffmpeg codec allows subtitles. playback is acceptable. not as good as on my backend,
>>>>     a ryzen 7 with nvidia 750 ti. you could also try to build from master and check out the vaapi 2 and see if that improves
>>>>     the nuc's before you take the plunge. overall i'm quite happy with the shield on a 4k tv and thanks to the great
>>>>     work by peter bennet now having mythfrontend makes a really versatile solution for me.
>>>     The advances of small multi-core CPUs with built-in GPU has been
>>>     great since I retired from the industry. I know that a PC that
>>>     you spend $400 for will do the job. Also an old PC with a good
>>>     Nvidia graphics card with do the job.  For me form factor is
>>>     also a big issue. That's why I spent a lot of time debugging
>>>     performance on the 3rd gen Core i3 NUC. But that performance is
>>>     going down not up.
>>>     The RP3 B+ is quite good on Kodi but still lacking on
>>>     mythfrontend. Neither can do SlingTV, Prime Video etc.
>>>     So if the developers are spending their time on Nvidia Shield
>>>     then that may be the direction I should head. The hardware specs
>>>     on the Shield are impressive and the price is nice. I am
>>>     sticking with v29 on the backend because it's stable. I know the
>>>     pre30 mythfrontend works on my Macbook with the v29 backend, but
>>>     had missing libraries on the RP3 with Raspbian. So I can't see
>>>     if any improvements have happened on the RP3.
>>>     From monitoring the mailing list I see there are a number of
>>>     people with the Shield.  My use case for the Shield would be
>>>     Mythfrontend displaying recorded MPG2 files from OTA tuners. I
>>>     use the HDHR Quatro and Connect devices.
>>>     Jim A
>>>     _______________________________________________
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>>>     mythtv-users at mythtv.org
>>>     <mailto:mythtv-users at mythtv.org>
>>>     http://lists.mythtv.org/mailman/listinfo/mythtv-users
>>>     http://wiki.mythtv.org/Mailing_List_etiquette
>>>     MythTV Forums:
>>>     https://forum.mythtv.org  <https://forum.mythtv.org/>
>>     i run the mythfrontend on a shield and also use the hdhomerun
>>     quattro as well as hdpvr. the files play without stutter and any
>>     frontend features i use all work. i do have to use a cheap usb
>>     wireless backlit keyboard to do edits and other functions as the
>>     remote is limited (at least for me). that was another 10 dollars.
>>     i can't answer about question on dvb streams but i think if u.s.
>>     mpeg2 hd plays those would also play. i have mpeg2 files that go
>>     over 6gigs/hour. only issue i had was on hdpvr content or other
>>     iptv content in h265 that i had to change codec. but they play.
>     So if the MPEG2 videos from the HDHR Quatro are good on the Shield
>     then I may make the jump to it. I also use the USB wireless
>     keyboard for editing and setup.
> Just make sure you create the playback profiles from the wiki and 
> indeed, everything played back very nicely and de-interlacing was 
> excellent.

So now for the stupid question. When you say de-interlacing was 
excellent, what do you mean? On what content does that matter? I only 
watch HDTV recordings from a HDHR Quatro via OTA antenna. It's usually 
720P or 1080i depending on channel and program. Both of those I consider 

Jim A

> I use HDPVRs and HDHRs (original models) as well here in the US.
>>     i don't know firestick 4k, but i had a cheap box with the s905x
>>     arm, same as mibox, and it was pretty bad on mythfrontend. shield
>>     a world of difference on mythfrontend and everything else. i did
>>     put libreelec on the cheap box and kodi worked really well fwiw.
>>     hope that answers some of your questions.
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