[mythtv-users] FireTV 4K vs. Shield TV for mythtv frontend and Leanfront

[David Engel]

On Thu, Sep 17, 2020 at 09:36:29AM -0400, Peter Bennett wrote:
> 
> On 9/17/20 8:05 AM, lists at arewethere.net wrote:
> > On Wed, Sep 16, 2020 at 02:44:17PM -0500, David Engel wrote:
> > <snip>
> > > > I guess it doesn't bother me since I don't know what to look for.  I mostly
> > > > record HDTV OTA MPEG2 stuff from my antenna connected to an ATSC tuner like
> > > > HDHR.  All of the stuff I watch is with mythfrontend or leanfront and I
> > > > think it looks as good as with my PC with Nvidia GT1030 gfx card.
> > > If you had the problem, you'd definitely notice it.  You'd also see it
> > > on your GT1030.  It sounds like you're lucky and none of your local
> > > channels are using the encoder parameters or encoders that cause the
> > > problem to show up.
> > 
> > I have been seeing a problem like this for quite a while but
> > I was putting it down to glitches in the tv cards or something.
> > It was always a puzzle because I have decent signal strength
> > and I see it on all tuners (dvico, leadtek usb, hauppage quad).
> > 
> > Let me list the symptoms to check
> > 
> >   - DVB-T transmission (PAL)
> >   - 7MHz channel width
> >   - MPEG2 video
> >   - Nvidia GeForce GT 710
> >   - Content mostly 720p, some 1080p, no 4k
> >   - v29 for the moment
> >   - current playback profile is 'slim' but I see similar things
> >     with other profiles like vdpau or opengl
> > 
> > Still a match?
> > 
> >    create a hybrid, palyback profile that does mpeg2 decoding
> >    in software and the rest with mediacodec.
> > 
> > Not sure how to go about creating a custom playback profile.
> > https://www.mythtv.org/wiki/Playback_profiles looks like the
> > place to start...guessing the steps are
> >   - make a new playback group
> >   - tweak the profile so Decoder is 'ffmpeg' for all resolutions
> >   - not sure what's next
> > 
> > Any hints?
> > Vince
> > _______________________________________________
> 
> There are fairly detailed instructions in the wiki (RTFM) :
> 
> https://www.mythtv.org/wiki/Android#Nvidia_Shield

The shield entry should be updated to recommend kernel deinterlacing
instead of linear blend.  I don't know if the firetv 4k can handle it.
If it can, it should be updated too.

David
-- 
David Engel
david at istwok.net