Color space which setting to select?

[DMD]

One thing is certain, that with the tests I made the Himedia (with FWC 2.04) does not guarantee the color space of 10bit @ 60Hz, this is evident and I do not know if it is a limit.
Are there any other players who can do it?

[pcristi]

I don't understand your point about 10bit @ 60Hz

HDMI 2.0 support

[DMD]

Thanks for specifying the characteristics of the HDMI 2.0 standard, which confirms the color space @ 60Hz 4.4.4 only 8Bit, but at least 4.2.0 I should have it at 10 bit.

[pcristi]

For experiment try autoFMTswitch scripts on yours box when is connected to Oled 4K and see how is switching. Maybe will be good for you.

[DMD]

I also tried this tool.
With initial settings @ 60Hz 4.2.0 10 bit, after playback it always switches to 4.2.2. 8bit and always stays with these settings.

[DMD]

Good morning.
Today I took some time and made 2 final tests.

First test
With CFW (2.0.4) I set the color space 4.2.0 @ 10bit with 4K @ 60Hz display.
I launched a video in HDR and after a video SDR, verifying during playback, with the diagnostic tool Q5Q10PRO-OUTPUTINFO, the color space has changed from 4.2.0 @ 10bit to 4.2.2., This change also remains in the setting.
To check this condition, I launch a 4k HDR video again, but the color space always remains 4.2.2 (DeepColor 24).

Second Test
I installed the OFW (2.0.4) and set the 4.2.0 @ 10bit color space with a 4K @ 60Hz display.
I have launched a video in HDR and after a video SDR verifying during playback, with the diagnostic tool Q5Q10PRO-OUTPUTINFO, the color space remains always as it was set (4.2.0 @ 10bit), even in the setting section remained the same value.

This is an example of a DVD file that in the first test I always detected with the color space 4.2.2 @ 8bit



In conclusion, I do not know what you can depend on, but with the CFW if you set 4.2.0 @ 10bit (4K @60Hz) and an SDR file is played, the color space changes to 4.2.2 and always stays with this value.
These conditions were detected on 2 boxes of HiMedia (Q10 Pro and Q5 Pro).

Thank you

[Mount81]

The SD video info shows 25fps, means it should switch to 25Hz or (if you have the auto FMT patch installed) to 50Hz during playback. Do you have 50Hz as output or 60Hz? Cause on 25Hz you couldn't have YCbCr 420 with 10bit (as it shows in the info window), only on 50 or 60Hz.

Cause if it's 60Hz, than it's not the correct output frequency for this video and means that you do not have the 24p mode turned on (or not working) in the Playback menu.

[DMD]

No auto FMT patches have been installed.
The tests have only shown that with CFW the color space is changed, with any SDR file and with any framerate, the screenshot you referred to was just one example.
What I wonder and why this does not happen with the OFW with both HDR and SDR files and the color space remains the one set by the 4.2.0 @10bit setting?

[Mount81]

I'm just making my conclusions by the info's you have shared and  -by my understanding and upon more consideration- the referred info chart show exactly what I've been suspected: the video is 25fps but the output happens on 60Hz. It definitely means that the auto freque switching is not working or it's turned on (the "24p Mode").

If the info app shows that it stays on 420 / 10bit even with 23.976 fps videos (or with any fps videos under 50fps), and you got the number "_60" after the resolution displayed in the chart, it also means the same as above.  As 420 / 10bit / 4K is only supported with 60Hz or 50Hz output. (See all the HDMI 2.0 spec tables linked here before.) So the auto freque switching -necessary for cadence perfect playback-  just isn't activated.  It can and should show 10bit in the case of 23.976, 24, 25, 29,97 and 30fps videos but not with 420 color space. When the proper auto frequency switching happens -adapting to the videos fps-  it should switch also the color space to either 444 or 422. As in these cases (again: with anything under 50fps) the 420 would be simply impossible. 

All of this being told only because your tests simply could make more sense if they would happen also with the proper refresh rate switching.

[DMD]

I understand his logical conclusions, but my question remains the same, because with OFW the color space does not change.

[Mount81]

I understand his logical conclusions, but my question remains the same, because with OFW the color space does not change.

Because -concluded from the info window you've pasted- the auto frequency switching isn't turned on in your settings. Turn it on and repeat the test with any under 50fps video.

[DMD]

These are the screens with OFW with Frame rate adaptation> Close





















These are the screens with OFW with Frame rate adaptation> Open



















You're absolutely right is the automatic enabling of the frame rate to always set the color space 4.2.2 @8bit

[Mount81]

I'm getting suspected that there are several mayor misunderstandings concerned in this issue (could be mine as well, regarding the lack of infos given in your replies).

First: Are you using KODI's own internal player for playback or the HiMedai Player via the Wrapper or from the Media Center?

Second: Where do you set the "Auto frame rate adaptation"? In KODI or in the HiMedia Settings->Playback menu?

Third: Do you have the Auto Frame rate extender patch installed?

To do list:

Uninstall the auto freq extender patch first (only if you have installed it before on this FW).

Turn ON the 24p mode (the HiMedia Players own auto frequency switcher) in the Settings->Playback menu. You should look for something similar to this: 24Hz on the bottom is the setting in this case.

Forget KODI for a while, and do your tests with simply starting the videos from the Media Center using HiMedai Player for playback. (Or you can use the Wrapper method with KODI, but be 100% sure that the Wrapper is activated and that the playback happens with the stock HiMedai Player and not with KODI's player-> See the FAQ).



Repeat the tests.


Cause what I presume is, that you did all the tests with KOID's internal player, which isn't highly suggested to use for playback on these Boxes in general, as it isn't designed to take on all the hardware features that the Box is capable of.


(Or I've could be also mistaken and you indeed did use the HiMedai Player, but your posts were rather so uninformative to conclude anything else at the moment).

[DMD]

1- the HimediaVideoplayer is the default player also for Kodi.
2- The auto frame rate is set in the HiMedia Playback menu.
3- I have not installed any auto patch frame extender.

[Mount81]

Than it's "simply" a firmware bug. Would be good to know if it's only concerning FW 2.0.4, or at least about a version that is surely not, but looks like this Forum has begun to be rather deserted from a while, to get back relevant -and detailed- answers anytime soon (but would worth a try to post a detailed and informative question in Sticky firmware thread). Also would be expected to have Futeko -at last- step in with their experiences, suggestions and with a clear explanation.   

The 422 (no bits) mode is still a mystery for me, just as that on what bitdepth happens the output during playback if the TV and the AVR juts doesn't display neither 8 or 10bit on it's info banner, tho' they can and would in the case of the other settings.

I'm also would be interested in the answers, as it could be a mayor PQ affecting issue in the case of 10bit video playback in the future.