2015-10-29, 19:19
(2015-10-29, 19:07)samboy Wrote: Just to chime into the picture quality discussion of the Shield......
Our old Patriot PBO box produced noticeably better output for our Samsung JS8500 than the Nvidia Shield.
It turned out that the difference was due to PBO->HDMI/1080p versus Nvidia Shield->HDMI/4k (i.e. driving TV in 1080p versus 4k)
Meaning that PBO was effectively having the JS8500 do the up scaling versus Nvidia Shield/Kodi.
I had to end up buying an HDMI splitter + 1080p HDMI dongle to force the Nvidia Shield to output at 1080p and this resolved the problem.
It was a quite noticeable difference (and hat off to Samsung for their upscaling/shapening algorithms).
Sure that this doesn't explain the difference?
That example might mean the Shield is just doing a proper upscale with no processing. That is, making one pixel in 1080p four pixels in "4k". Where as the tv does that plus, as you said, go through a sharpening algorithm. Which would get into the debate of "true" vs "better"?
Ultimately the only way to settle it would be what wesk05 said he may do this weekend. Capture a specific frame directly from the boxes hdmi output and compare. 1 from the Shield, 1 from whatever other device, and 1 from a software decoder we know doesn't do anything but decode the frame.
