[TESTING][S905(X)] 10bit/HDR/Dithering Test Builds & Discussion

Quote from antaril

and where can i download it? any links?

s905 and s912 Leia builds

Sounds interesting. Does these releases work with 905X? and 10Bit HDR Dithering also?

Quote from superczar

However, I do have a very fundamental question

I tried playing back a 10 bit video which was reported by the AVR as 8 bit

Subsequently, I enabled 10bit on the box by setting the class attribute as follows (on the original kszaq 8.2 commit)

Code

echo '444,10bit' > /sys/class/amhdmitx/amhdmitx0/attr

However,now the AVR reports 10bit>10bit at all times, i.e. not only while playing a 10bit video but even regular 8 bit videos

Short of copying said files on a USB drive and running a visual comparison between playback off the USB drive on the TV vs Kodi, is there anyway to conclusively determine what bit depth Kodi is actually sending out the output as?

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My guess is that the echo command above sends a code to the HDMI TX subsystem to force HDMI output to 10 bit permanently.

This has no massive downside for 8 bit content (there should be no visual difference between sending 8 bit content as 8 bit and sending it as 10 bit with 00s in the 2 least significant bits - unless your display dithers 8 bit content to 10 bit) but it does mean you can't tell 8- from 10-bit content from the output format.