2015-01-21, 16:28
Going back to the discussion about getting optimum black levels and the 16-235 limited range setting in combination with with full or limited RGB output...
Is this patch available and can I apply it to my linux build of kodi? Passing through the original 16-235 values without expanding to full range and then scaling down again seems like a very worthwhile feature that should be part of the standard build?
My setup:
I get good results on the projector by enabling the 16-235 limited range setting in Kodi, setting "Enhanced Range" on the projector HDMI input settings, and setting full range output in xrandr:
Playing "1-Black Clipping.mp4", the '17' bar flashes very faintly but is still distinguishable from reference black (16).
If I don't set Enhanced Range on the projector, blacks in the 1-Black Clipping.mp4 test file are badly crushed.
On the plasma, using all 4 possible combinations of xrandr range setting and the Kodi 16-235 limited range setting, I'm not quite happy with the results and am seeing some black crush - Even if I turn up the brightness on the plasma, 16-20 or so are basically still black and almost indistinguishable.
Apart from lmyllari's patch, is there anything I can try changing apart from the xrandr full/limited and kodi limited range on/off settings?
(2014-07-21, 17:23)lmyllari Wrote: It is possible to patch the driver to allow untouched output with infoframes telling it is limited range. This should work on all TVs and matches what a standalone player typically does.
Is this patch available and can I apply it to my linux build of kodi? Passing through the original 16-235 values without expanding to full range and then scaling down again seems like a very worthwhile feature that should be part of the standard build?
My setup:
- Intel i5 NUC (D54250WYKH with Intel HD 5000 graphics, running latest Kodibuntu)
- Sony STR-DN1040 receiver
- Pioneer Kuro KRP-500AW plasma
- JVC DLA-X35 projector
I get good results on the projector by enabling the 16-235 limited range setting in Kodi, setting "Enhanced Range" on the projector HDMI input settings, and setting full range output in xrandr:
Code:
xrandr --output HDMI1 --set "Broadcast RGB" "Full" -d :0Playing "1-Black Clipping.mp4", the '17' bar flashes very faintly but is still distinguishable from reference black (16).
If I don't set Enhanced Range on the projector, blacks in the 1-Black Clipping.mp4 test file are badly crushed.
On the plasma, using all 4 possible combinations of xrandr range setting and the Kodi 16-235 limited range setting, I'm not quite happy with the results and am seeing some black crush - Even if I turn up the brightness on the plasma, 16-20 or so are basically still black and almost indistinguishable.
Apart from lmyllari's patch, is there anything I can try changing apart from the xrandr full/limited and kodi limited range on/off settings?
