[mythtv] NVidia Shield and 4K video

Mark Spieth mark at digivation.com.au
Tue Aug 7 22:12:42 UTC 2018

On 8/8/2018 7:20 AM, David Engel wrote:
> On Tue, Aug 07, 2018 at 03:58:04PM -0400, Peter Bennett wrote:
>> I have to admit defeat on this one. Everything I have tried results in the
>> image being doubled in width and height before being displayed, and any
>> image larger than 1920x1080 is cut off on the 3840x2160 screen. Android and
>> QT documentation are vague on the subject. The API documentation has wording
>> like "The size returned by this method does not necessarily represent the
>> actual raw size (native resolution) of the display.
>> 2. It may be scaled to provide compatibility with older applications that
>> were originally designed for smaller displays." Apparently it thinks MythTV
>> is an older application designed for smaller displays.
>> At this time is it somewhat academic, as I do not believe any TV stations
>> broadcast in 4K.
> I bet there are people who have 4k, bluray rips on their backend/NAS
> and want to play them at full resolution.
>> I can play a 4K video and its resolution is reduced to 1920x1080. The same
>> video plays with MythTV in its full 4K resolution on Linux with vaapi and on
>> Shield through Kodi. Android Kodi can use the full resolution, I do not know
>> what their secret is.
>> Kodi is not a QT application, the problem may lie in the interface between
>> QT and Android.
> I was directed to the Qt Interest Mailing List
> (http://lists.qt-project.org/mailman/listinfo/interest) today for help
> with the resume takes too long problem.  You might try posting there.
I'm still looking at this but have struck issues with 5.11.1 build and 
of course time. It must be possible.

Ive also noticed that my h96pro is restricted to 720p on a 4k screen 
inside myth.
This may help me figure out whats happening.
This is why the mythui looks different.


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