What is the CHEAPEST option for 4k hevc playback?
#17
(2019-01-04, 09:18)djnice Wrote: I hear, Apple TV 4K is wrong with MaxFALL, MaxCLL HDR metadata too: https://firecore.com/comment/90894#comment-90894

Is there a media player that is perfect for HDR metadata?

Likely Not. While we are in reality at the birth of 4K HDR media players and standards. Mainline Linux for example really is only just beginning to introduce 10bit HDR support. Dolby too are still having fun ironing out bugs with DolbyVision. The popular brands Sony have had issues. LG too.

Quote:What about Zidoo X9S/Z9S?


Ziddo = No > see THIS thread (click)

All the 4K HDR AML - LibreELEC / CoreELEC / OSMC media players also do not pass MaxFALL, MaxCLL HDR specific metadata. Thy NVIDIA Shield is the same I believe unless it has recently been fixed.

There are even HDR Bluray titles that have No MaxFALL, MaxCLL HDR metadata

The trouble with getting all technical and ticking every box with HDR is you can be as accurate as you want .ie NVIDIA Shield converting everything perfectly from rec.709 to bt.2020, but when such data gets to the HDR display you are then at the whim of the TV manufacturer. As NVIDIA found out with a bunch of SDR / 4K HDR TV users.

You then have LG OLED's TV for example having issues with near black flashing currently and other LG workarounds have also had to be implemented for Chroma Subsampling (see Vero 4K+ most recent Dec. update)



You really have to look visually - for picture color banding, too dark a picture, washed out colors, etc. because even not every bit of technical metadata is even measured 100% correctly downstream, with Vertex HD Fury hardware for example.

Looks like Apple have gone down the conservative Metadata route, after looking at user feedback. I personally have seen very few complaints.
Same with OSMC (Vero 4K), & AMLogic HDR hardware - running recent community versions of LE or CE.

NVIDIA is finally changing to colorspace switching on the Shield like everyone else has been doing, so no more washed out rec.709 colors for affected 4K HDR TV owners in 2019.

Projector owners belong in a special category and are more demeaning due to their equiptment not being bright enough to display the full brightness levels present in source HDR content and tone mapping then being required. Seems they definitely do need MaxFALL, MaxCLL HDR metadata.

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RE: What is the CHEAPEST option for 4k hevc playback? - by wrxtasy - 2019-01-04, 10:47


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