Hi! I’ve been using a Shield TV for more than a year now, which had it’s fair share of issues with colour space conversion and horrible upscaling. Though some of it is better now (colour space conversion) or fixed (resolution switching) I just bought an Apple TV 4K because of some few other annoya…

It’s a little hard to compare color output between apps and devices because of the numerous factors at play, but we are pretty confident in the color accuracy provided by Infuse. FWIW, the Shield wouldn’t be the first device we’ve seen to oversaturate colors (intentionally or otherwise). There is s…

I haven’t seen any difference between ycbcr and rgb. However, I’ve tested various other sources (youtube, photos) with various devices (ipad 2018, sony xz1 compact, IPS PC monitor) and color saturation on all of them resembled Apple TV the most. So I guess the answer is the second one, Samsung TV ov…

Ycbcr on ATV has problems with near blacks up to 5% and adds green tint along the whole greyscale. It’s not something you see easily, but it is evident in black skin tones.

The output of the Shield is definitively wrong. Compare the surrounding area of Gosling’s character in the center. The Shield is oversaturating reds to the point where the ground is reduced to a couple of red hues, while on ATV you can see smooth gradients. Also, please be aware that you’re likely…

ATV 4K sends out “fabricated” HDR10 metadata for content played in Infuse and other similar software. It replaces the HDR parameters present in the original content with a generic HDR InfoFrame (P3, D65, Max/Min Mastering Display Luminance:1000/0.005nits, MaxFALL/MaxCLL: 4000/1000nits). Shield outpu…

Which UHD titles have you used to verify this? I’m asking because the HDR metadata that’s present in many titles is not actually correct, i.e. during mastering they just set some average values, or use a heuristic to derive them, e.g. by sampling every 10th frame or similar. Also, many UHD players…

My comments are based on test patterns. I wasn’t making inferences based on UHD titles. HDR10 metadata is static. The only two values that come from file analysis are MaxFALL and MaxCLL. The rest are based on the display used for grading. Not much can be done on titles that have “bad” HDR10 metadata…

Did you verify the HDR metadata sent from ATV with a HDFury device?

Yes, but that’s only one of the several test instruments that I have used. I personally own several field HDMI analyzers and also have access to industry reference grade HDMI analyzers and waveform monitors.

Here is a little bit more infor regarding the HDR metadata issue weks05 mentioned. [image] HDR metadata not correct, replaced by standard values Apple TV The metadata for (as it seems) all HDR10 content played on Infuse is replaced with BT.2020 Mastering Display Color Pr…

Image quality issue (compared to Shield TV)

Video Playback

Sledgehamma September 9, 2018, 5:38pm 12

Here is a little bit more infor regarding the HDR metadata issue weks05 mentioned.

Topic		Replies	Views
HDR metadata not correct, replaced by standard values Apple TV pending	202	18936	December 7, 2025
Apple TV Settings for UHD HDR Movies Apple TV	31	43320	April 12, 2018
Hdr10 colors Apple TV	95	5054	September 30, 2019
HDR not working right Apple TV	283	37402	September 1, 2018
4K HDR Video Playback	104	14965	February 11, 2018

Image quality issue (compared to Shield TV)

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