More > JRiver Media Center 27 for Windows
4k hdr, how can I see if JRiver it out correctly.
indieke:
Not says much to me.... Seems HDR is not on?
tij:
Ok ... MC is outputting at 1080p ... so there is downscaling going on
It also outputs at 23fps ... so apparently your projector supports it.
HDR tone mapping is done by MadVR (see https://yabb.jriver.com/interact/index.php/topic,126153.0.html for explanation on that)
Also ... your GPU is not up to task with your current settings ... rendering times are higher than vsync ... so you will have ocassional frame drops ... aka choppy playback ... need to reduce some settings to get rendering times under vsync
tij:
Ahh ... forgot ... it outputs at 8 bit
indieke:
Thanks 4 K is a mess. On nothing can get it well. The projector has it so perfect on 1080 P. It looks best I have ever seen.
But 4K or should I say HDR is grey contrast is poor. Now the projector has its own player. There again 1080 P is smashing and 4 K has same problem as on anything. On projector no setting can be wrong, as by playing on harddisc, there are no settings to be done, as the projector should play it well. I think this last is defective. Seems it not recognize the HDR. And it should. Here example of 1080 P, nice contrast with this time Google tv on 1080 P and second on 4K HDR. All set well.
https://flic.kr/p/2mfMgiS
https://flic.kr/p/2mfHwiG
tij:
Ok ... if hdr stuff looks washed out ... then i might be wrong about madvr tone mapping (EDIT: looking at your screen shots ... definitely MadVR is not doing tone mapping ... nothing is doing tone mapping, so image looks wash out)
It would really help if you tell me your GPU and projector model.
Also ... can you post screenshots of your settings:
1. MC setting ... Tools > Options > Video > Display Settings
2. MadVR settings ... Devices -> [projector name]->Display modes
3. MadVR settings ... Devices -> [projector name]->HDR
EDIT2: MC/madVR settings are more complicated than other players (kodi, plex) cause they give you direct control over playback. But it gives much better results ... especially for HDR on projectors which have limited brightness compared to TV
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