[algernon2607]

hello
HDR is Ok with kodi-20170519-7a55b33-master-arm64-v8a and below on Shield but since kodi-20170521-0ab0042-master-arm64-v8a is NOK.

Tested with REAL hdr movies (Demos and my own made with 4k hdr camera).

Al

[dragmore]

HDR works fine in 17.1 also.
Confirmed on my Minix U9 + Samsung KS7005

[Koying]

@OP Do you confirm Mediacodec(Surface) is still used during playback?

[algernon2607]

@Koying

Yes , I confirm Mediacodec(Surface) is actived ....!!!

[Koying]

Well, on kodi-20170521, HDR still works on my Sony TV
Can you revert to kodi-20170519 to confirm it's a Kodi issue?

[peak3d]

@OP pls. provide a log file with debug loging enable / component logging disabled
Edit: And, if possible, a short sample file and 2 screenshots, OK and NOK.

[algernon2607]

Hello
@Koying

Test made this morning with Sony_4k_hdr_camp :
TV : Samsung
Shield 2015 with last firmware directly connected in TV

kodi-20170519-7a55b33-master-arm64-v8a OK
kodi-20170521-0ab0042-master-arm64-v8a NOK
kodi-20170522-1d4808a-master-arm64-v8a NOK
kodi-20170522-74e505d-master-arm64-v8a NOK
kodi-20170523-c239aec-master-arm64-v8a NOK
kodi-20170524-1a38948-master-arm64-v8a NOK
kodi-20170524-421033d-master-arm64-v8a NOK
kodi-20170525-16ace17-master-arm64-v8a NOK

Then return to kodi-20170519-7a55b33-master-arm64-v8a and it is OK.
I just remarks , when it is NOK , that there is a flashlight with satured colors before the movies start.

@peak3d :
Ok il will ask to my friend to help me to give you a log..

[wesk05]

HDR passthrough is broken when there is a refresh rate switch. When you disable refresh rate switching or when the fps matches the refresh rate set in Android settings, HDR passthrough is OK.

Refresh rate switching on (no switching, 59.94Hz) HDR passthrough OK https://pastebin.com/HCkwQWT8
Refresh rate switching on (59.94 to 23.976Hz switch) HDR passthrough broken https://pastebin.com/TwABasc3
Refresh rate switching disabled (23.976fps @ 59.94Hz) HDR passthrough OK https://pastebin.com/P4xDYwGe

[fritsch]

What happens for non HDR content? If you disable "Adjust Refreshrate"? Those are then also falsely output as HDR?

[wesk05]

What happens for non HDR content? If you disable "Adjust Refreshrate"? Those are then also falsely output as HDR?

It is fine with non HDR content. There is no false HDR output. However, there is false color space, but that is just the way HDR passthrough is implemented in Shield. You need to select one of the 10/12-bit Rec.2020 output modes for HDR passthrough.

non HDR, no refresh rate switching - https://pastebin.com/XwRjK7La

[fritsch]

What about the metadata? As the 10 bit precission yuv is most likely not what makes up HDR alone, right?

[wesk05]

What about the metadata? As the 10 bit precission yuv is most likely not what makes up HDR alone, right?

Are you referring to HDR10 metadata sent by Shield? If so, just like all the other Android devices that I have checked so far (Amlogic S905X, S912, Realtek RTD1295) it only sends partial metadata. It sends groups 2 & 3 of the static metadata descriptor (see table in this post: http://forum.kodi.tv/showthread.php?tid=...pid2568747). Now, almost all of the HDR10 content has been graded on DCI-P3 monitors. So it is kind of OK to omit group 1. In my opinion, you do need groups 3-6 for proper tone mapping. It is unclear at this time whether the available displays are actually utilizing groups 5 & 6 for tone mapping.