[mythtv-users] frontend video smoothness

[James Abernathy]

On Mon, May 18, 2020 at 12:54 PM John Pilkington <johnpilk222 at gmail.com>
wrote:

> On 18/05/2020 16:50, Jim Abernathy wrote:
> > I now have an easy way to test multiple frontends very quickly switching
> > between them to compare which is best.
> >
> > And as all of you know the best can be different depending on which
> > video, which format, etc. I've found a short scene where the camera pans
> > past a number of people, and that motion makes the pan seem slightly
> > jerk, but not bad, certainly it doesn't prevent enjoyable viewing of the
> > program.
> >
> > Hardware:
> >
> > Backend common for all frontends. Core i7 Ubuntu 18.04 server Mythtv
> > v31. All video captured is MPEG2 USA OTA HD 1080i (1920x1080 at 30hz).
> > Average bit rate is 10Mb/s.
> >
> > Frontends:
> >
> > 1. Core i7 with Nvidia GT 1030 fanless GFX card
> >
> > 2. Nvidia Shield TV running mythfrontend and leanfront.
> >
> > 3. RP3B+ with MPEG2 license.
> >
> > I would have guess before hand that the PC with the GT1030 would be the
> > best, but it wasn't.
>
> Using DVB-T/T2 in the UK I find that the Leanfront on a 4K Firestick is
> excellent when it works, but it still seems to need purely progressive
> content and that often can't be guaranteed.  I have GT710s, which are
> less capable than your GT1030, and they lack smoothness in panning when
> using nvdec hardware decoding.  But with i5 4-core 3 GHz software
> decoding, playback is as smooth as I get from DLNA or the leanback on
> appropriate content.  I haven't seen what newer and cheaper devices can
> do, but I'm sceptical.  I think you ought to try software decoding on
> your i7.
>
> And I recently noticed that the leanfront seems to work well with live
> DVB-T mpeg2 material, while recordings now have good audio but the video
> pauses briefly about once a second and sync is terrible...
>
> John P
>
> >
> > ratings:
> >
> > 1.  Nvidia Shield TV Leanfront.
> >
> > 2.  PC with GT1030 mythfrontend
> >
> > 3. Nvidia Shield TV mythfrontend
> >
> > 4. RPi3B+ Kodi 18.6
> >
> > 5. RPi3B+ mythfrontend
> >
> > It's good to see that mythtv frontends are good on a lot of platforms.
> > Thanks to all the developers.
> >
> > Jim A
> >
>

My wife uses our FireTV 4K Stick, but I've tested it. It's not as good on
Leanfront as the Shield TV, but very acceptable.  She's not as critical as
I am and thinks it's very good for playing recorded TV.

All our TV is OTA, either 1080i or 720p mpeg2

Jim A
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